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Patent Office Clerk ?1? 1 @ ?, title of invention 41, yo, [[phase] Japan Patent Office 0 ? ?
51-9320 Self-release 0 ? ? 5 1 1. (1976) 8, i 6 ? Japanese Patent Application A, Ku / J '1. f /
[phase] application day Shoyu, (197C) ,, t, Bl Office internal number 4 number, trt 7 j,> (?! 1,-. 1
Specification, title of the invention and title of the invention electro-mechanical converter 2.4 iii
Claims ?both sides in each direction (X direction. X direction of the vibrating membrane having
a conductive path in which alternating current flows in the same direction along the center line
in two regions on both sides of the center line bisecting each other and in opposite directions
mutually on both sides An electro-mechanical transducer characterized by providing DC
magnetic fields which are substantially orthogonal to this vibrating membrane and opposite to
each other in the two regions with their both ends extended by one.
3, patent applicant
Detailed Description of the Invention The present invention relates to an electro-mechanical
converter used for a speaker or the like. Conventionally, there are various types of exchangers
known in this building, but those using permanent magnets that require the use of magnetic
fields require the entire electromagnetic coil, and it is necessary to use it for manufacturing,
wholesale, holding, etc. There was a drawback. The present invention has been made to eliminate
the above-mentioned drawbacks, and provides an electro-mechanical converter which is simple
in construction and can be realized inexpensively. First, the basic principle of the electromechanical conversion operation in the present invention will be described. In the film 11 shown
in FIG. 1, two orthogonal axes on the film surface are represented by X and F, and an axis kz
orthogonal to these orthogonal axes indicates that the external magnetic field acts in two
directions, in the y direction When current is applied, the force of force acts in the X direction
according to Fleming's left-hand rule. Also, when the direction of one of the magnetic field and
the current is changed, the force acts in the opposite direction. Therefore, as shown in D D (m),
for example, on the X and 7 planes of P edge film 2 such as a polymer film, ie, on both sides, for
example, the true i For example, as shown in FIG. 2 (b), an audio current is supplied to the
conductive layers 22 and 23 from the sound current source 24 so as to be opposite to each other
in the y direction. And, with respect to the two regions on both sides of the center line part which
is virtually divided in two with respect to the film 21fX direction, the opposite force EndPage: a
direct current magnetic field H for one direction and a direction orthogonal to the film surface
(two directions. ) To act from the outside. As a result, the direction of the force acting in the X
direction on both sides of the film 21 corresponds to the arrows in the figure (solid lines
correspond to each other, dotted lines correspond to each other). As shown in the above, both
sides are mutually opposite directions, and two regions of each side are mutually opposite
directions. Therefore, both sides of the film 2 expand and contract in the X direction, but the
expansion and contraction operation is reversed between the both sides. Therefore, if both ends
of the film 21 in the X direction are fixed, it can be used as a vibrating film. That is, when the
sound current is expanded and contracted in the direction indicated by the solid line arrow in the
positive half cycle period of the audio current, the non-fixed surface (phase) of the film 21 is in
the Buddha direction (two directions). In the direction A). Conversely, the half cycle 43 in the
negative direction of the audio current expands and contracts in the direction indicated by the
dotted arrow, and the flexible film S == S is displaced to the B-shaped egg in the reverse direction
to the incoming direction. Due to the displacement in the A and B directions, the film 2 vibrates
to generate a sound wave. Next, one embodiment of the present invention will be specifically
described. In FIG. 8, reference numeral 3 denotes a peristaltic membrane as described above with
reference to, for example, FIGS. 2 (a) and 2 (b).
Permanent magnets s2. 'Ss is placed opposite to each other. Then, one end of the film 31 in the X
direction and the end of the magnet 32 ░ 33 are fixed by the holder 34. In this case, the lower
surface 32.33 gives an L outside of a direction orthogonal to each other and a true direction to
two jaw areas of a vibration group 3 and a group 3 different from each other. As described
above, the magnetic plate of the negative electrode surface facing the vibration film 31 is
reversed in two regions corresponding to the two autumn regions of the vibration group 3 ?.
Therefore, as shown in FIG. 2 (b) on both sides of the IM1 belly, as shown in FIG. 2 (b), the voice
current 1 m (shown in FIG. 6) In the case of full contact piles, the vibration group 31 is pressed
by the operation principle as described with reference to FIGS. Vibrate to). This is put together,
the self-contained space surrounded by the magnet 32.33> the holder 34 is made to
communicate between the outside air and the space between one and the other to make it
function as a vibrating device and to radiate the sound wave by the vibration of the vibrating
membrane 31 to the outside space. Therefore, a plurality of through holes 35 are dispersedly
provided in the magnet 32.33. The conductive -5 layer of the vibration group 31 is etched so as
to have a stripe-like conductive path pattern, turn 41 as shown in FIG. It is formed by processing
etc. The conductive path is not necessarily limited to the stripe shape, and may have a shape that
overlies the surface of the two regions, and may be deformed appropriately. According to the
converter as described above, the predetermined direction (X direction) on each side. ) In the 2nd
region on the side of 1ilI 71 of the central line that divides the half) in the same direction along
the central set, and in the two sides of each other, the currents flow in opposite directions to each
other. It is a simple composition to fix the -X direction end of the traumatic nerve membrane and
to make the vibration family substantially reverse and to cause the opposite 0-DC magnetic field
to act in the two ridge regions. Can be realized inexpensively because the coils required by the
vessel can be omitted and ? and a commercially available stone can be used. Therefore, the
above-mentioned replacement example can be used for a speaker or headphones, etc. to realize a
flat drive speaker and headphones at low cost. In the above embodiment, the vibrating film, the
individual and the stone each have a rectangular shape, but the peripheral ridge may be fixed by
using another shape, for example, a circular shape. Also, in the above embodiment, although the
machine conversion operation of electric ? is understood, if a shell clam is taught instead of a
voice current source, if 1 membrane 3 ? if ? ? ? ? ? ? ? ?Of course, it is possible to
adopt the above-mentioned converter as a microphone, and so on.
4. Brief description of the drawings, 1 and 2 according to the present invention. "Similar Hair",
Fig. 1 ? ? ? 8 which is shown to show the basic progress of the hood Fig. 8 shows one
embodiment of the present invention 1- ? ? ? ? Fig. 4 shows the eighth FIG. 7 is a diagram
showing a conductive path pattern indication EndPage: 2 of the vibrating membrane. 31 ииии
Vibrating film, sBejJ иии Magnet, 41
ииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииии Vibrating film, sBejJ иии Magnet,
41 иии Conductive path pattern. Applicants Attorney Attorneys Takeshi Suzue 1 Figure (b) Fang 3
ward и и 3? Fig. 4 (4) Application form 1 side 6, inventor, patent applicant or agent (1) inventor
(2) agent EndPage: ?
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