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DESCRIPTION JP2008086653

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DESCRIPTION JP2008086653
In an ultrasonic diagnostic apparatus, heat generated in a probe connector of an ultrasonic probe
is dissipated. A connector-side heat transfer plate (44) is provided on a probe connector (18), and
a body-side heat transfer plate (42) is provided on the apparatus main body side. When the
probe connector 18 is attached and locked, the movement of the lock handle 56 is transmitted to
the connector-side heat transfer plate 44 by the transmission mechanism 50 configured by
parallel links. The connector-side heat transfer plates 44 move in directions away from each
other, and come into surface contact with the opposing main body-side heat transfer plates 42.
Through the heat transfer plates 44 and 42, the heat generated in the probe connector 18 is
dissipated to the apparatus body side. [Selected figure] Figure 2
Ultrasonic diagnostic equipment
[0001]
The present invention relates to an ultrasonic diagnostic apparatus that transmits and receives
ultrasonic waves to the inside of a subject and obtains an ultrasonic image based thereon, and
more particularly to heat dissipation of a probe connector for attaching and detaching an
ultrasonic probe to and from the apparatus main body.
[0002]
There is known an ultrasonic diagnostic apparatus that transmits ultrasonic waves to the inside
of a subject and obtains an ultrasonic image of a target site by the received ultrasonic waves.
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The ultrasonic diagnostic apparatus is exchangeable with an ultrasonic probe that transmits and
receives ultrasonic waves in accordance with a target site and an image to be obtained. The
ultrasonic probe includes a probe head that contacts the subject and transmits and receives
ultrasonic waves, a probe connector mounted on the main body of the ultrasonic diagnostic
apparatus, and a probe cable that connects the probe head and the probe connector. By attaching
the probe connector to the main body side, the terminal pin provided on this and the terminal
hole provided on the main body side are connected, and the circuit on the apparatus main body
side and the ultrasonic transducer in the probe head are electrically connected Be done.
[0003]
A conventional probe connector contains a wire connecting an ultrasonic transducer of a probe
head and a terminal pin. JP, 2001-353147, U.S. Pat. No. 5,560,362
[0004]
In recent years, in order to obtain higher resolution and three-dimensional ultrasound images, a
need exists for ultrasound probes with more ultrasound transducers, ie, multi-channel ultrasound
probes. Since the ultrasonic transducers and the terminal pins are connected in a one-to-one
manner, as the number of ultrasonic transducers increases, the number of terminal pins of the
probe connector also increases, and the connectors can not fit. For this reason, it is conceivable
that the drive control of the vibrator and the processing of the reception signal, which have been
performed on the apparatus main body side, are performed by the circuit provided in the probe
connector.
[0005]
However, when the drive circuit of the ultrasonic transducer, the signal processing circuit of the
reception signal, etc. are contained in the probe connector, the heat generation of these circuits
becomes a problem.
[0006]
Although the above-mentioned Patent Documents 1 and 2 disclose techniques for controlling the
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temperature of the probe head of the ultrasonic probe, the heat generation of the probe
connector is not considered.
That is, conventionally, there has been no technology for solving the problem related to heat
generation that occurs when an electrical circuit or the like is mounted on the connector of the
ultrasonic probe.
[0007]
The present invention provides a technique for radiating heat from a probe connector on which
an electric circuit or the like is mounted.
[0008]
In the ultrasonic diagnostic apparatus according to the present invention, the heat transfer
bodies are provided on both the device main body and the probe connector, and when the probe
connector is mounted on the device main body, these heat transfer bodies are in surface contact,
that is, heat transfer bodies The heat generated in the probe connector is transferred to the
device body side to be dissipated, by making a large area contact.
A heat transfer body drive mechanism for driving at least one heat transfer body is provided in
order to ensure that the heat transfer body on the main body side and the heat transfer body on
the connector side are in close contact with each other. When the probe connector is attached to
the apparatus main body, the heat transfer body drive mechanism moves at least one of the heat
transfer body on the main body side and the connector side in the direction in which the heat
transfer bodies approach each other, and brings them into surface contact.
[0009]
The main body side heat transfer body and the connector side heat transfer body can be paired,
respectively. One pair of heat transfer members can be brought into surface contact with each
other by sandwiching the other heat transfer member pair from the outside. In addition, one heat
transfer body pair can be expanded to be brought into surface contact by stretching from the
inside of the other heat transfer body pair.
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[0010]
The probe connector is provided with a lock mechanism that locks the connector so as not to be
detached when the connector is attached to the apparatus main body, and the heat transfer body
drive mechanism can operate in conjunction with the lock mechanism. Thereby, when the probe
connector is attached, the heat transfer body can be reliably brought into surface contact.
[0011]
The locking mechanism has a handle, and rotation of the handle can lock the probe connector. A
transmission mechanism, such as a link mechanism, can be provided to mechanically transmit
the movement of the handle to the connector-side heat transfer body.
[0012]
Further, the lock mechanism may be provided with a lock sensor for detecting lock and lock
release, and the motor may be driven to move the main body side heat transfer body based on
the detection result of this sensor. A mechanism including a cam can be employed as a
mechanism for transmitting the rotation of the motor to the main body side heat transfer body.
The cam may have a profile in which a position at which the body-side heat transfer body is in
surface contact with the connector-side heat transfer body and a position at which the body-side
heat transfer body is separated from the connector-side heat transfer body are alternately
provided. With this cam profile, the main body side heat transfer body can be sequentially
brought to the surface contact position and the separated position by rotation of the motor in
one direction.
[0013]
According to the present invention, the heat generated in the probe connector can be transferred
to the main body side by the main body side heat transfer body and the connector side heat
transfer body in surface contact, and the connector can be dissipated.
[0014]
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Hereinafter, embodiments of the present invention will be described with reference to the
drawings.
FIG. 1 is a block diagram showing a schematic configuration of an ultrasonic diagnostic
apparatus 10 according to the present embodiment. The ultrasonic diagnostic apparatus 10
controls an ultrasonic probe by controlling an ultrasonic probe 14 including an ultrasonic probe
14 including a probe head 12 that transmits and receives ultrasonic waves to a subject, and
transmits and receives ultrasonic waves based on a received signal obtained. It is roughly divided
into an apparatus main body 16 that provides an image.
[0015]
The ultrasound probe 14 has a probe connector 18 which is attachable to and detachable from
the apparatus main body 16, and provided with a plug 22 having a connection pin 20. The
connection pin 20 and each transducer of the probe head 12 are connected by a probe cable 24.
Also, the probe connector 18 contains a connector-side transmission / reception circuit device 26
that performs control of transmission / reception of ultrasonic waves from the probe head 12,
drive of an ultrasonic transducer, and predetermined processing on a received signal. .
[0016]
The device body 16 is provided with a receptacle 28 for receiving the plug 22 of the probe
connector, and the receptacle 28 is provided with a connection hole 30 to be connected to the
connection pin 20 of the plug 22. When the probe connector 18 is attached to the device body
16, the plug 22 and the receptacle 28 are coupled, and the connection pin 20 contacts the
connection hole 30. Thereby, the ultrasonic probe 14 and the apparatus main body 16 are
electrically connected.
[0017]
The device main body 16 includes a main body side transmission / reception circuit device 32.
The main body side transmission / reception circuit device 32 performs control related to
transmission / reception of ultrasonic waves of the ultrasonic probe 14 in cooperation with the
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transmission / reception circuit device 26 on the connector side. The main body side
transmission / reception circuit device 32 operates according to the control of the transmission /
reception control unit 34, and the transmission / reception control unit 34 controls the
transmission / reception circuit device 32 according to the user's instruction input from the
operation panel 36. The acquired reception signal is sent to the image forming unit 38, where
predetermined processing is executed to form a predetermined image such as a B-mode
tomographic image. The formed image is displayed, for example, on the display 40 and provided
to the user.
[0018]
As described above, the probe connector 18 is provided with part of a circuit that performs
transmission and reception of ultrasonic waves, processing of received signals, and the like.
These circuits are provided on the ultrasonic probe 14 side by separating a part of the
transmission / reception circuit device provided in the conventional device main body 16 and
further adding a new function. One reason for adopting such a configuration is that the circuit
scale increases with the increase in the number of ultrasonic transducers, etc., and the space of
the device main body is insufficient, and the number of wires further increases. The reason is
that the connection pins 20 provided on the connector do not fit in the surface of the connector
facing the device body 16 or the like. By performing part of the signal processing on the
ultrasonic probe 14 side, the number of connection pins and connection holes is reduced.
[0019]
As described above, when the circuit is built in the probe connector 18, the heat generation from
the circuit element such as the circuit device becomes a problem. This heat generation may cause
problems such as failure of the circuit device itself, deformation of the connector case, etc., and it
is necessary to properly dissipate the heat.
[0020]
2-4 is a figure which shows the structure which concerns on the heat transfer of the probe
connector 18 and the apparatus main body 16. FIG. FIG. 2 is an exploded perspective view
showing the configuration around the receptacle 28 of the device main body 16 and the
configuration relating to the heat transfer of the probe connector 18, and other configurations
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are shown in a state of being omitted or seen through. FIG. 3 is a front view of the main part, and
FIG. 4 is a side view of the main part. In the following description, upper and lower, right and left,
and front and back directions are respectively defined by the vertical and horizontal directions in
FIG. 3 and the directions passing through the sheet, and do not necessarily coincide with the
directions in the actual device.
[0021]
A main body side heat transfer plate 42 which is a main body side heat transfer body and a
connector side heat transfer plate 44 which is a connector side heat transfer body are provided
in the apparatus main body 16 and the probe connector 18 respectively. The main body side
heat transfer plate 42 is located on the left and right of the receptacle 28 and is connected to a
thermally conductive structure such as a housing of the apparatus main body or the like. The
connector-side heat transfer plate 44 is disposed at the inner side of the pair of main-body-side
heat transfer plates 42 when the probe connector 18 is attached to the apparatus main body 16.
The connector-side heat transfer plate 44 is movable along the guide 46 (see FIG. 4) in the
approaching direction and the separating direction with respect to the corresponding main-bodyside heat transfer plate 42. Surface contact between the main body side heat transfer plate and
the connector side heat transfer plate causes heat generated inside the probe connector to be
transmitted to the apparatus main body side. The followers 48 are provided at the upper and
lower ends of the connector heat transfer plate 44, and are engaged with the guides 46
extending in the left-right direction to restrict the movement of the connector heat transfer plate
44 to the left and right. The connector-side heat transfer plate 44 is provided with a guide slit 54
into which the slide pin 52 of the transmission mechanism 50 is inserted. The guide slits 54
extend in the vertical direction, as is well shown in FIG.
[0022]
The probe connector 18 is provided with a lock mechanism for locking the probe connector 18
so as not to be disengaged from the apparatus main body 16. A lock shaft 58 extending rearward
is integrally coupled to the lock handle 56 of the lock mechanism. The lock shaft 58 enters into
the lock hole 60 of the apparatus body when the probe connector 18 is mounted. A lock pin 62
is provided radially at the tip of the lock shaft 58. When the lock shaft 58 enters the lock hole
60, the position of the lock pin 62 is at the position of the groove portion 60a of the lock hole
60. Match. When the lock handle 56 is rotated, the lock pin 62 is also rotated within the device
body 16 so as to be out of position with the groove portion 60 a and engaged with the periphery
of the lock hole 60. This prevents the probe connector 18 from coming off. Therefore, the lock
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handle 56, the lock shaft 58, the lock hole 60, the lock pin 62 and the like function as a lock
mechanism.
[0023]
The movement of the connector-side heat transfer plate 44 in the left-right direction is
interlocked with the rotational movement of the lock handle 56. Further, on the lock shaft 58, an
engagement piece 64 is erected radially outward. The engagement piece 64 is engaged with an
engagement hole 68 provided in one of the links 66 of the transmission mechanism 50 having a
parallelogram link mechanism. In the following, when it is necessary to identify the link provided
with the engagement hole 68, it is referred to as a link 66a. The engagement between the
engagement piece 64 and the engagement hole 68 is shown in FIG. The engagement hole 64
allows movement of the engagement piece 64 between the engagement end faces 68a and 68b.
When the rotation of the lock shaft 58, that is, the movement of the engagement piece 64
exceeds the range of the engagement end faces 68a and 68b, the rotation of the lock shaft 58 is
transmitted to the link 66a. When the link 66 a rotates, this rotation is also transmitted to the
upper and lower two links 66 via the connection link 70. By the rotation of the link 66, the slide
pin 52 provided at the tip of each link 66 moves in the left-right direction, and the connector-side
heat transfer plates 44 forming a pair also move in the left-right direction.
[0024]
FIG. 6 is a view showing the movement of the connector-side heat transfer plate 44 at the time of
attachment and detachment of the probe connector 18. When the plug 22 of the probe
connector 18 is inserted into the receptacle 28 of the apparatus main body 16, the connector
heat transfer plate 44 is spaced apart from the inside of the main body heat transfer plate 42 as
shown in FIG. positioned. When the lock handle 56 is rotated counterclockwise (in the direction
of the arrow in FIG. 3), the lock pin 62 is rotated and engaged with the peripheral edge of the
lock hole 60 and locked. The link 66 rotates after the engagement piece 64 reaches the
engagement end surface 68 b. By this rotation, the connector-side heat transfer plate 44 is driven
to expand and stretch in the direction of the arrow shown in FIG. 6 so as to abut on the main
body-side heat transfer plate 42 positioned outside. This state is shown in FIG. 6 (b), and the two
heat transfer plates 42, 44 contact over the entire opposing surface. When the probe connector
18 is removed, the lock handle 56 is rotated clockwise. When the engagement piece 64 reaches
the engagement end face 68a, the link 66 rotates, the connector heat transfer plate 44 moves
inward, and the contact state with the main body heat transfer plate 42 is cancelled. Further, the
lock pin 62 also comes to the position of the groove portion 60a of the lock hole, and the lock is
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released. Thereby, the probe connector 18 can be removed.
[0025]
The main body side heat transfer plate 42 and the connector side heat transfer plate 44 are
preferably made of a material having good thermal conductivity, such as metal, particularly metal
such as aluminum and copper. Also, one of the two heat transfer plates 42 and 44 (in the
example of FIG. 6, the connector-side heat transfer plate 44) is a layer made of a flexible and heat
conductive sheet 72 having good thermal conductivity. It can also be provided. Thereby, the
adhesion between the heat transfer plates 42 and 44 is enhanced, and the thermal conductivity
at the contact surface is improved. The heat conductive sheet 72 can be made of a material such
as silicone rubber. In addition, it is also possible to use a material based on silicone rubber and
mixed with an additive that improves the thermal conductivity, such as a fine powder of carbon.
[0026]
FIG. 7 shows an example in which the arrangement of the main body side heat transfer plate 42
and the connector side heat transfer plate 44 is changed. In this modification, the connector-side
heat transfer plates 44 forming the pair are located outside the pair of the main body-side heat
transfer plates 42, and the heat transfer plates are in surface contact with each other
sandwiching the main body-side heat transfer plate 42 from the outside. . About the structure
corresponding to the example of FIG. 6, the same code | symbol is attached | subjected and
description is abbreviate | omitted.
[0027]
FIG. 7A shows a state in which the heat transfer plate is separated, that is, the connector-side
heat transfer plate 44 is open. When the lock handle is pivoted in the locking direction, in this
example, the transmission mechanism operates to move the connector-side heat transfer plate 44
inward as shown by the arrow. By this operation, the main body side heat transfer plate 42 and
the connector side heat transfer plate are in surface contact. When the lock handle is pivoted in
the release direction, the connector heat transfer plate 44 is opened and separated from the main
heat transfer plate 42.
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[0028]
FIGS. 8-10 is a figure which shows the other form of the structure which concerns on the heat
transfer of the apparatus main body 16 and the probe connector 18. FIG. Although this
embodiment has the main body side heat transfer body and the connector side heat transfer
body similarly to the embodiment shown in FIGS. 2-4 etc., in this embodiment, the main body
side heat transfer body is Move to make surface contact with the connector-side heat transfer
body. FIG. 8 is a front view showing the main part of the apparatus main body related to the heat
transfer mechanism as viewed from the connector side, FIG. 9 is a plan view, and FIG. 10 is a
right side view. Also in this embodiment, the vertical and horizontal directions and the front and
rear directions are defined by the vertical and horizontal directions in FIG. 8 and the directions
passing through the sheet, respectively, and do not necessarily coincide with the directions in the
actual device.
[0029]
A main body side heat transfer plate 80 which is a main body side heat transfer body and a
connector side heat transfer portion 82 which is a connector side heat transfer body are
provided in the apparatus main body 16 and the probe connector 18 respectively. The
connector-side heat transfer portion 82 actually corresponds to a pair of opposite sides of a
conductive, preferably metallic rectangular enclosure 84 provided on the periphery of the plug
22 of the probe connector engaged with the receptacle 28 It is a part. At the front and back of
the main body side heat transfer plate 80, a guide plate 88 provided with a guide slit 86 is
provided. At the upper and lower ends of the guide plate 88, followers 90 are provided which
engage with guides 89 fixed to the apparatus body. The guide 89 allows the guide plate 88 to
move only in the lateral direction.
[0030]
A slide pin 91 is inserted into the guide slit 86 and can slide along the guide slit 86. The slide pin
91 is arranged to connect two links 92 (92a and 92b) arranged in the front and rear direction,
and a square is formed by the two links 92 and the slide pin 90. The two links 92 are vertically
arranged substantially in parallel, and the links 92 and the guide plate 88 form a substantially
parallelogram. Two connecting links 94 extending substantially parallel to the guide slit 86 are
coupled to the two rear links (indicated by reference numeral 92b in FIG. 9), and a driving link
96 is coupled to the connecting links 94. It is done. The link 92 and the drive link 96 are
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disposed substantially in parallel. The drive link 96 is connected to the motor 100 via a gear
train 98, and is configured to swing as the motor 100 rotates.
[0031]
The rotation of the motor 100 is transmitted to the guide plate 88 and the heat transfer plate 80
via the drive link 96, the connection link 94, the link 92 and the slide pin 91, and these move to
the left and right. In this movement, the left and right body side heat transfer plates 80 move
closer to or away from each other.
[0032]
A pressure sensor 102 for detecting the contact pressure of the heat transfer plate 80 and the
heat transfer portion 82 is provided on the surface facing the main body side heat transfer plate
80 and the connector side heat transfer portion 82. When the main body side heat transfer plate
80 is moved toward the connector side heat transfer section 82 by the motor 100 and abuts, the
motor 100 is stopped when the pressure sensor 102 detects that the predetermined pressure is
reached. Further, the pressure sensor 104 is disposed to face the surface of the main body side
heat transfer plate 80 opposite to the surface facing the connector heat transfer portion 82. The
pressure sensor 104 is provided on a frame of the device body 16 or a member fixed to the
frame. The pressure sensor 104 detects a pressure when the main body side heat transfer plate
80 abuts on a member provided with the pressure sensor 104. When main body side heat
transfer plate 80 is moved by motor 100 in a direction away from connector side heat transfer
portion 82 and abuts on pressure sensor 104, motor 100 is detected when pressure sensor 104
has reached a predetermined pressure. Is stopped.
[0033]
It is preferable that the main body side heat transfer plate 80 and the connector side heat
transfer portion 82 be made of a material having good thermal conductivity, such as metal,
particularly metal such as aluminum and copper. In addition, it is possible to provide a layer
made of a heat conductive sheet 106 which is flexible and has a good thermal conductivity on
one of the heat transfer plate 80 and the heat transfer portion 82. Thereby, the adhesion
between the heat transfer plate 80 and the heat transfer portion 82 is enhanced, and the heat
conductivity at the contact surface is improved. Furthermore, the member on the apparatus main
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body side provided with the pressure sensor 104 can be provided with a heat conductive sheet
108 which is flexible and has good thermal conductivity. The heat conductive sheets 106 and
108 can be made of a material such as silicone rubber. In addition, it is also possible to use a
material based on silicone rubber and mixed with an additive that improves the thermal
conductivity, such as a fine powder of carbon.
[0034]
FIG. 11 shows the configuration of a sensor for detecting that the probe connector 18 has been
locked and unlocked. FIG. 11A is a view showing the unlocked state, and FIG. 11B is a view
showing the locked state. In each of the drawings, the probe connector 18 is attached from the
right side to the apparatus main body 16 on the left side. A light emitting diode (LED) light
source 110 is provided in the receptacle 28 of the device body. Further, a photosensor 112 for
receiving the LED light source 110 is fixed to a support piece 113 erected on the receptacle 28.
In the state where the lock shown in (a) is released, the light emitted from the LED light source
110 is received by the photo sensor 112. In the locked state shown in (b), the light from the LED
light source 110 is blocked by the lock pin 62 and is not received by the photo sensor 112.
Thereby, it is determined that the probe connector 18 is locked or unlocked.
[0035]
When mounting the probe connector 18, when the lock handle 56 is rotated counterclockwise to
lock, the photosensor 112 does not receive the light of the LED light source 110. When the
controller detects this, it causes the motor 100 to rotate. The rotation direction at this time is
rotation in a direction in which the main body side heat transfer plate 80 is brought close to the
connector side heat transfer portion 82. When the main body side heat transfer plate 80 abuts
on the connector side heat transfer portion 82 and reaches a predetermined contact pressure,
the pressure sensor 102 outputs a signal, and the control portion stops the motor 100 based on
this signal. When the lock handle 56 is rotated clockwise to release the lock, the photosensor
112 receives light from the LED light source 110 again. When light is received in a state where
the pressure sensor 102 detects a predetermined pressure, the control unit causes the motor
100 to rotate. The rotational direction is the direction in which the main body side heat transfer
plate 80 is separated from the connector side heat transfer portion 82. And if pressure sensor
104 outputs a signal, a control part will stop rotation of motor 100 based on this.
[0036]
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12-14 is a figure which shows the other form of the structure which concerns on the heat
transfer of the apparatus main body 16 of an ultrasound diagnosing device, and the probe
connector 18. As shown in FIG. In this embodiment, the main body side heat transfer body is
moved to be in surface contact with the connector side heat transfer body. FIG. 12 is a
perspective view showing the main part, and FIGS. 13 and 14 are views showing the operation of
the heat transfer plate. About the component similar to the above-mentioned embodiment, the
same numerals are attached and the explanation is omitted. Also in the following description, the
vertical and horizontal directions and the front and rear directions are defined by the horizontal
and vertical directions in FIG. 13 or 14 and the directions passing through the sheet, respectively,
and do not necessarily coincide with the directions in the actual device.
[0037]
A heat transfer portion 114 is provided around the plug 22 of the probe connector 18. The outer
shape of the heat transfer portion 114 is a substantially rectangular parallelepiped. Of the side
surfaces of the rectangular parallelepiped, that is, the surfaces orthogonal to the surface facing
the apparatus main body, the vertically extending surface forms the connector-side heat transfer
portion 116 that makes surface contact with the heat transfer body on the main body side. The
apparatus main body 16 is provided with a receptacle 28 facing the plug 22, and a pair of main
body side heat transfer plates 118 are disposed to sandwich the receptacle 28. The main body
side heat transfer plate 118 and the connector side heat transfer portion 116 function as a main
body side heat transfer body and a connector side heat transfer body which respectively surfacecontact and transfer the heat in the connector to the apparatus main body. The main body side
heat transfer plate 118 is supported near its lower end by a support shaft 120, and can swing
around this axis. An open / close cam 122 is in contact with the upper end of the main body side
heat transfer plate 118. A pinion 124 is coaxially provided on the open / close cam 122, and a
worm gear 130 provided on the output shaft 128 of the motor 126 is engaged with the pinion
124. The motor 126 is coupled to a rotary encoder 132 for detecting the rotation angle of the
output shaft.
[0038]
When the motor 126 rotationally drives the output shaft 128, the open / close cam 122 is
rotated via the worm gear 130 and the pinion 124, and the main body side heat transfer plate
118 swings according to the cam profile. The body side heat transfer plate 118 is biased by a
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spring 134 so that it always contacts the cam surface.
[0039]
The operation at the time of attachment and detachment of the probe connector 18 will be
described also using FIGS. FIG. 15 is a diagram showing a circuit configuration of the control unit
136 of the motor 130. As shown in FIG. A falling edge detection unit 138 and a rising edge
detection unit 140 are provided to detect that the plug 22 and the receptacle 28 are connected
and disconnected, and the output of these is sent to the OR gate 142. The output of the OR gate
142 is sent to the set terminal of the reset set-flip flop (hereinafter referred to as RS-FF) 144. The
motor driver 146 is connected to the output terminal of the RS-FF 144, and the motor 130 is
driven by the output of the motor driver 146. The output of the RS-FF 144 is also sent to the
counter 148. The counter 148 counts pulses of the rotary encoder 132 while this output is Hi,
and when the predetermined number is counted, the reset terminal of the RS-FF 144 is Hi. I
assume.
[0040]
The signal waveforms shown in A to E of FIG. 16 correspond to the signals of points A to E
shown in FIG. When the probe connector 18 is attached, the signal at point A falls from Hi to Lo
and is detected by the fall detection unit 138, and the fall detection unit 138 outputs a Hi pulse
signal (signal B in FIG. 16). reference). When this pulse signal is received, the RS-FF outputs a
signal of Hi (the signal C) and the motor driver 146 drives the motor 130. As a result, the open /
close cam 122 is rotated, and the main body side heat transfer plate 118 is driven from the open
state of FIG. 13 to the closed state of FIG. The rotation angle of the motor until the closed state
shown in FIG. 14 is fixed, and when the number of pulses corresponding to this rotation angle is
issued from the rotary encoder 132 (signal D), the counter 148 outputs a pulse signal The output
(signal E) causes the output of RS-FF to be Lo (signal C), and the motor 130 is stopped. At this
time, the open / close cam 122 makes a half rotation, and as shown in FIG. 14, the two heat
transfer plates 116 and 118 are in surface contact.
[0041]
When the probe connector 18 is removed, the signal at point A rises from Lo to Hi, which is
detected by the detection unit 140, and the OR gate 142 outputs a pulse signal (signal B). As a
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result, the output of the RS-FF 144 becomes Hi, and the motor 130 rotates. The rotational
direction is the same as when the main body side heat transfer plate 118 is opened. When the
output pulse number of the rotary encoder 132 reaches a predetermined number corresponding
to a half rotation of the opening / closing cam 122, the motor 130 is stopped by a signal from
the counter 148, and the main body side heat transfer plate 118 shown in FIG. It becomes.
[0042]
In the above embodiment, when the opening and closing cam 122 makes one rotation, the main
body side heat transfer plate 118 is configured to perform one reciprocation movement to open
and close, but by appropriately selecting the shape of the opening and closing cam, The heat
transfer plate can also be reciprocated once by the open / close cam half rotation, 1/3 rotation or
the like. For example, in order to make the heat transfer plate 1 reciprocate by half rotation of
the cam, the nose portions of the cam may be disposed at an interval of 180 °.
[0043]
In each of the above embodiments, the connector-side heat transfer plate 44 and the connectorside heat transfer portions 82 and 116 are configured to transmit heat from the heating element
such as an electronic circuit housed in the probe connector 18 to heat conduction from the metal
plate to the heat pipe. Heat is transferred through the good members of the
[0044]
It is a figure which shows schematic structure of the ultrasound diagnosing device of this
embodiment.
It is a perspective view showing composition concerning heat transfer of a probe connector and a
device main part. It is a front view which shows the principal part of the probe connector of FIG.
It is a side view which shows the principal part of the probe connector of FIG. It is a top view
which shows the contact of a heat exchanger plate, separation operation. It is a figure which
shows the engagement state of the lock shaft 58 and the link 66a. It is a top view which shows
the other example of the contact of a heat exchanger plate, isolation | separation operation. It is a
front view which shows the principal part of the other structural example which concerns on the
heat transfer of a probe connector and an apparatus main body. It is a top view which shows the
principal part of the probe connector of FIG. It is a right view which shows the principal part of
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the probe connector of FIG. It is an explanatory view about detection of a lock of a probe
connector, and lock release. It is a perspective view which shows the other structural example
which concerns on the heat transfer of a probe connector and an apparatus main body. It is
operation | movement explanatory drawing of the probe connector of FIG. It is operation |
movement explanatory drawing of the probe connector of FIG. It is a figure which shows the
circuit structure of the control part of the motor of FIG. It is a figure which shows the signal
waveform of the circuit of FIG.
Explanation of sign
[0045]
Reference Signs List 10 ultrasonic diagnostic device, 16 device body, 18 probe connector, 22
plug, 28 receptacle, 42, 80, 118 body side heat transfer plate, 44 connector side heat transfer
plate, 52, 91 slide pin, 54, 86 guide slit, 56 lock handle, 58 lock shaft, 60 lock hole, 62 lock pin,
66, 92 link, 70, 94 connection link, 82, 116 connector side heat transfer part, 96 drive link, 100
motor, 122 open / close cam, 126 motor.
14-04-2019
16
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