JP4285230B2 - Piezoelectric light emitting device, piezoelectric light emitting maracas and piezoelectric light emitting seasoning container - Google Patents

Description

The present invention, a piezoelectric luminous module and its applied products formed by integrally covering the piezoelectric element and the light-emitting element or the like with a coating material, specifically, the piezoelectric light emitting apparatuses, relates pressure electrostatic emission maraca and piezoelectric luminous cruet .

  Conventionally, various piezoelectric light emitting products having piezoelectric elements that convert mechanical energy into electric energy and light emitting elements that emit light by electricity output from the piezoelectric elements have been proposed.

  In such a piezoelectric light emitting product, there are several structures using piezoelectric elements, and two typical ones will be described below.

  One is to use a piezoelectric element in a cantilever vibration type as in the example shown in FIG. That is, the piezoelectric element 86 as described above is normally fixed to a thin substrate (also referred to as a diaphragm) 84 (the illustrated example is an example of a bimorph structure in which the piezoelectric elements 86 are fixed to both surfaces of the substrate 84. 15 also, one end of the substrate 84 is supported by the support 88, a weight 90 is attached near the other end (free end) of the substrate 84, and an impact force 92 is applied to the substrate 84 from the outside to apply the substrate 84 and the piezoelectric element. In this structure, the element 86 is vibrated to generate power. A piezoelectric element unit using this cantilever vibration type is described in Patent Document 1.

  The other one uses a piezoelectric element in a free vibration type as in the example shown in FIG. That is, the piezoelectric element 86 fixed to the substrate 84 is ideally placed in a free state in which no substrate is supported, and an impactor 94 such as a sphere is caused to collide with the substrate 84 and the piezoelectric element 86 to freely vibrate. Power generation. A generator using this free vibration type is described in Patent Document 2.

  In any of the above structures, the output of the piezoelectric element 86 increases as the frequency of vibration increases in the region of the vibration frequency at which humans vibrate. Among several structures, it is known that the free vibration type as in the example shown in FIG. 15 has the highest power generation efficiency (that is, energy conversion efficiency from mechanical energy to electrical energy). This is because in an ideal state, there is no loss of mechanical energy at the support.

JP 2000-224871 (paragraphs 0008-0009, FIG. 1) Japanese Patent Laying-Open No. 2002-262584 (paragraphs 0026-0029, FIGS. 15-16)

  As described above, since the free vibration type as shown in FIG. 15 and Patent Document 2 has the highest power generation efficiency, it is preferable to use it from the viewpoint of power generation efficiency, but this type has the following problems. .

  (1) It is necessary to use an impactor 94 having an appropriate weight. If the impactor 94 is too heavy, the piezoelectric element 86 may be damaged by the impact force. Therefore, there is a problem in increasing reliability. The piezoelectric element 86 usually uses piezoelectric ceramics that are easily damaged, and this also makes the above problem more serious.

  (2) Not only the impactor 94 but also a guide mechanism for guiding the impactor 94 so that the impactor 94 collides with a predetermined place of the piezoelectric element 86 is practically required, and the structure is complicated accordingly. Become.

  (3) The free vibration type does not mean that the piezoelectric element 86 (and the substrate 84) is floated in the air, but in reality, a support portion for supporting the piezoelectric element 86 (and the substrate 84) is necessary. In addition, considerable mechanical energy loss is generated from the support portion, so that the power generation efficiency is lowered accordingly.

  (4) Even if the piezoelectric element 86 is fixed to the substrate 84, if the impactor 94 is made to collide with the substrate 84, the strength of the fixed portion is reduced and is easily broken. Therefore, also from this viewpoint, the reliability is increased. There are challenges. In addition, there is a problem that the reliability of the lead-out portion of the wiring from the electrodes (not shown; refer to the electrodes 162 and 163 in FIG. 2) constituting the piezoelectric element 86 is likely to be lowered.

  Accordingly, the main object of the present invention is to provide a piezoelectric light emitting product that uses a piezoelectric element as a free vibration type, has high reliability and power generation efficiency, and does not require an impactor and its guide mechanism. .

The piezoelectric light emitting module that make up this invention, the piezoelectric element which converts mechanical energy into electrical energy, a piezoelectric luminous body comprising a light emitting element that emits light by electrical which the piezoelectric element is generated electrically connected, the light emitting It is characterized in that at least a part of the element is exposed, and is covered and integrated with a covering material.

  When this piezoelectric light emitting module collides with another object, for example, a container, a force is applied to the piezoelectric light emitting module due to the collision, and at the moment of the collision, a displacement force is applied to the piezoelectric light emitting module and the internal piezoelectric element to generate electric power. Not only does the light emitting element emit light, but the piezoelectric light emitting module bounces off and floats in space for a short time following the collision, and freely vibrates at the resonance frequency of the entire module. The element emits light. In this case, since the light emitted from the light emitting element exposes at least a part of the light emitting element from the covering material, it can be seen by a person regardless of whether the covering material is transparent or translucent.

  The piezoelectric light emitting module may be formed by integrally covering the piezoelectric light emitting body with a transparent or translucent coating material. In this case, the light emitted from the light emitting element goes out through the covering material, so that the person can see it.

  The piezoelectric light emitting body may be formed by fixing a piezoelectric element that converts mechanical energy into electric energy to a substrate and electrically connecting a light emitting element that emits light by electricity generated by the piezoelectric element.

  The piezoelectric light-emitting device according to the present invention is characterized in that at least one of the piezoelectric light-emitting modules is housed in a transparent or translucent container without being fixed.

  When vibration is applied to this piezoelectric light emitting device, for example, when it is held and shaken, the piezoelectric light emitting module is housed without being fixed in the container. When a plurality of light emitting modules are inserted, they may collide with each other, and thereby, by the same action as described above, light can be emitted with high efficiency by utilizing free vibration in a state floating in the space of the piezoelectric light emitting module. Can do. The light emitted by the piezoelectric light emitting module (more specifically, the light emitted by the light emitting element, hereinafter the same) goes out through the transparent or translucent portion of the container, so that it can be seen by a person.

  The piezoelectric light-emitting maracas according to the present invention is characterized in that one or more of the piezoelectric light-emitting modules are accommodated in a sound generating part container in which at least a part of the maracas is transparent or translucent, without being fixed.

  When this piezoelectric light emitting maraca is shaken by hand, the piezoelectric light emitting module is housed in the sound generating unit container without being fixed. Therefore, the piezoelectric light emitting module collides with the wall surface of the sound generating unit container, and a plurality of piezoelectric light emitting modules are installed. When they are put together, they may collide with each other, emit a rhythm sound, and emit light with high efficiency by using free vibration in a state floating in the space of the piezoelectric light emitting module by the same action as described above. Can do. The light emitted by the piezoelectric light emitting module goes out through the transparent or translucent part of the sound generating part container, so that the person can see it.

  The piezoelectric light emitting seasoning container according to the present invention has the piezoelectric light emitting module having a first chamber for storing the seasoning and a second chamber isolated from the first chamber, and at least a part of the wall surface of the second chamber is transparent or translucent. In the second chamber of the container, one or more are housed without being fixed.

  If you hold this piezoelectric light-emitting seasoning container in your hand, you can shake out the seasoning in the first chamber, and the piezoelectric light-emitting module is housed in the second chamber without being fixed. When the module collides with the wall surface of the second chamber and a plurality of piezoelectric light emitting modules are inserted, they may collide with each other, and this causes the same effect as described above to float in the space of the piezoelectric light emitting module. Using free vibration, light can be emitted with high efficiency. The light emitted by the piezoelectric light emitting module goes out through the transparent or translucent portion of the wall surface of the second chamber, so that it can be seen by a person.

According to the piezoelectric light emitting apparatuses according to claim 1, 2, the following effect.
(A) When a piezoelectric light-emitting device is shaken, the piezoelectric light-emitting module collides with the wall surface of the container in the container, and at the moment of the collision, a displacement force is applied to the piezoelectric light-emitting module and the piezoelectric element inside the piezoelectric light-emitting device to generate electricity and emit light. Not only the element emits light, but also for a short time following the collision, the piezoelectric light emitting module rebounds and vibrates freely in a state of floating in the space in the container. During this time, the piezoelectric element generates power and the light emitting element emits light. As described above, the present invention uses free vibration of a piezoelectric light emitting module including a piezoelectric element, and also uses free vibration in a state where the piezoelectric light emitting module floats in a space in a container. The power generation efficiency of the piezoelectric light emitting module is very high, and light can be emitted with high efficiency.
(B) When the piezoelectric light emitting device is shaken, the piezoelectric light emitting module itself collides with the wall surface of the container in the container and emits light by the action (a). Therefore, it is necessary for the conventional free vibration type. The impactor and its guide mechanism are unnecessary.
(C) In addition to the piezoelectric light emitting module being fixed by reinforcing the piezoelectric element on the substrate, the piezoelectric light emitting main body is covered and integrated with a covering material, so that it has high mechanical strength and is difficult to break. High reliability.
(D) The piezoelectric light emitting module is housed without being fixed in the container, and has an interesting effect of emitting light when shaken.

According to the piezoelectric light emitting device according to claim 3 , when it is shaken, the liquid put in the container is accidentally attached to the inner wall of the container, and the piezoelectric light emitting module is emitted by the accidental liquid. Since the light can be refracted and reflected, the state of the light that goes out of the container can be changed in various ways, and the fantastic effect can be enhanced.

According to the piezoelectric light emitting device of the fourth aspect , the light emitted from the piezoelectric light emitting module can be diffused by the irregularities on the surface of the container, so that the light can be emitted in a more complicated and wide range, and the light effect can be obtained. There is a further effect that it can be further enhanced.

According to the piezoelectric light emitting device of claim 5 , it is further possible that the sound absorbing material can mitigate the occurrence of the collision sound generated by the piezoelectric light emitting module colliding with the container when it is shaken. There is an effect.

According to the piezoelectric light emitting device according to claim 6 , the impact sound generated by the piezoelectric light emitting module colliding with the container when it is shaken can be further prevented by the double structure container and the sound absorbing material. There is a further effect that it can be mitigated.

According to the piezoelectric light emitting device of claim 7 , since the light emitted by the piezoelectric light emitting module can be diffused by the unevenness of the surface of the sound absorbing material, the light can be emitted in a more complicated and wide range, and the light effect There is a further effect that can be further increased.

According to the piezoelectric light-emitting maracas described in claims 8 and 9 , the same effects as the effects (a) to (c) of the inventions described in claims 1 and 2 can be obtained. In addition, it has an extremely simple structure in which the piezoelectric light emitting module is housed without being fixed in the sound generating part container, and when maracas are shaken, it has the interesting effect of being able to emit sound and light that match the rhythm of the shake. Play.

  In particular, not only the sound but also the intensity of the light emission of the piezoelectric light emitting module depends on the intensity of the motion of shaking the maracas, so that the player's emotions can be expressed more effectively in both sound and light. Can do. Therefore, the excitement of not only the performer but also the person who sees and listens to it becomes even more exciting.

  Moreover, since maracas are often used in dimly lit places, it is possible to further enhance the above-described effect due to light emitted from the piezoelectric light emitting module.

According to the piezoelectric light emitting seasoning container of claims 10 and 11 , the same effects as the effects (a) to (c) of the inventions of claims 1 and 2 are exhibited. Moreover, it has an extremely simple structure in which the piezoelectric light emitting module is housed without being fixed in the second chamber of the container, and has an interesting effect of emitting light when the seasoning is shaken.

  In addition, by making the light emission color of the piezoelectric light emitting module correspond to the type of seasoning according to the preference of the person using it, it becomes possible to identify the type of seasoning based on the light emission color when shaken. As a result, it is possible to visually prevent mistakes in seasoning and to enjoy differences in seasoning visually.

[Piezoelectric light emitting module]
1A and 1B are diagrams showing an embodiment of a piezoelectric light emitting module according to the present invention, in which FIG. 1A is a partially cutaway plan view, and FIG. 1B is a cross-sectional view taken along line BB. FIG. 2 is a diagram showing an example of a wiring diagram between the piezoelectric element and the light emitting element in FIG.

  The piezoelectric light emitting module 2 has two strip-shaped piezoelectric elements 6 that convert mechanical energy into electrical energy, and is fixed to both surfaces of a slightly larger strip-shaped substrate 4 by bonding or the like. The piezoelectric light-emitting body 10 is formed by electrically connecting two light-emitting elements 8 that emit light by electricity generated by the piezoelectric element 6.

  As the substrate 4, it is preferable to use a thin plate having an appropriate strength. By doing so, vibration of the piezoelectric element 6 can be facilitated and the piezoelectric element 6 can be reinforced. Since this substrate 4 vibrates while supporting the piezoelectric element 6, it can also be called a diaphragm. In this example, a thin printed board using a glass epoxy plate is used as the board 4. Therefore, wiring between the two piezoelectric elements 6 and between them and the light emitting element 8 is easy. Of course, a substrate other than the printed circuit board, for example, a thin metal plate, may be used for the substrate 4. In this case, wiring may be performed using a known means other than the printed wiring pattern.

  As shown in FIG. 2, each piezoelectric element 6 is formed by forming two electrodes 162 and 163 on both surfaces of a strip-shaped piezoelectric substrate 161. The piezoelectric substrate 161 is, for example, a piezoelectric ceramic substrate. The polarization directions P of the piezoelectric substrates 161 constituting both the piezoelectric elements 6 are the same as each other. The two piezoelectric elements 6 are electrically connected to each other in parallel, and the two light emitting elements 8 are connected to each other in parallel. In this example, the wiring is performed using a printed wiring pattern of the printed circuit board 4 and a through hole (not shown) penetrating the printed circuit board 4.

  A structure using two piezoelectric elements 6 as described above is called a parallel bimorph structure. Although a so-called unimorph structure in which the piezoelectric element 6 is fixed only on one surface of the substrate 4 may be employed, if a bimorph structure is employed as in this example, the amount of power generation is increased to about twice that of the unimorph structure. The light emission amount of the light emitting element 8 can be increased. In the case of the bimorph structure, a series type in which two piezoelectric elements 6 are electrically connected in series may be adopted. However, even one piezoelectric element 6 has a sufficiently high output voltage. Since it works like a source, the light emission of the light emitting element 8 can be increased by using the parallel type as in this example. Furthermore, a so-called multimorph structure in which a plurality of piezoelectric elements 6 are laminated on one side or both sides of the substrate 4 may be employed.

  The light emitting element 8 is, for example, a light emitting diode (LED), but may be other than that. The number of the light emitting elements 8 is not limited to two as in this example, and may be one or more. When a plurality of light emitting elements 8 are provided, they may be connected in series with each other, connected in parallel, or those connected in series may be further connected in parallel. This will be further described later.

  Further, when a plurality of light emitting elements 8 are provided, their emission colors may be the same or different from each other. If they are different from each other, the light emission colors can be mixed to produce various colors of light, so that the effects such as visual fun and beauty can be further enhanced. You may make it light-emit three primary colors of red, green, and blue, and the said effect will increase further by doing so.

  Then, as shown in FIG. 1, the piezoelectric light emitting body 10 as described above is formed by exposing at least a part of each light emitting element 8, covering with a covering material 12, solidifying and integrating. is doing. That is, all the portions other than the exposed light emitting element 8 are covered with the covering material 12. In this case, the covering material 12 may be transparent or translucent, or may be opaque. It is preferable that the portion where each light emitting element 8 is exposed from the covering material 12 includes a portion where a large amount of light is emitted from each light emitting element 8 to the outside (usually near the tip of the light emitting element 8). The covering material 12 is, for example, a film-like material, and in this case, it can also be called a covering film.

  It is preferable to use a material having an appropriate hardness for the covering material 12. If it does so, the whole piezoelectric light emitting module 2 will become one rigid body which freely vibrates efficiently. That is, if the covering material 12 is soft, the impact energy applied when the piezoelectric light emitting module 2 collides with another object is absorbed by the covering material 12 and the vibration energy applied to the piezoelectric light emitting module 2 is attenuated, and the covering material 12 is hard. If too much, the entire piezoelectric light emitting module 2 is less likely to vibrate freely. From such a viewpoint, it is preferable to use a resin such as an epoxy resin, a phenoxy resin, or a phenol resin for the covering material 12.

  Examples of the method of covering the piezoelectric light emitting body 10 with the covering material 12 include, for example, a method of molding using a mold, a method of immersing and molding the piezoelectric light emitting body 10 in a liquid covering material that is the basis of the covering material 12, A method of applying the covering material 12 to the piezoelectric light emitting body 10 can be used. The covering material 12 in the case of molding is also called a molding material.

  Although the coating thickness of the coating material 12 depends on the hardness of the coating material 12, generally speaking, if it is too thin, the effect of increasing the mechanical strength of the piezoelectric light emitting module is weak, and if it is too thick, the piezoelectric light emitting module 2 as a whole. Becomes difficult to vibrate freely. Therefore, for example, when the covering material 12 is a resin as in the above example, the covering thickness of the covering material 12 is preferably about 0.2 mm to 1 mm, and more preferably about 0.3 mm to 0.5 mm.

  The external dimensions of the piezoelectric light emitting module 2 are, for example, a length L of about 20 mm to 60 mm, a width W of about 5 mm to 15 mm, and a thickness T of about 2 mm to 5 mm.

  FIG. 2 shows an example in which two light emitting elements 8 made of light emitting diodes are connected in parallel in opposite directions. FIG. 3A shows an example in which one light emitting element 8 made of a light emitting diode is used. The direction may be the reverse of the illustrated example. FIG. 3B shows an example in which two rows of diode rows formed by connecting a plurality of light emitting elements 8 made of light emitting diodes in series in the same direction are connected in parallel in opposite directions. The number of light emitting diodes constituting each diode row is two or more and is arbitrary. In addition, the connection parts a and b in FIG. 3 are the same as the connection parts a and b in FIG. 2, respectively.

  When the light emitting elements 8 made of light emitting diodes are connected in parallel in opposite directions as shown in FIGS. 2 and 3B, the light emitting elements 8 in both rows emit light alternately when the piezoelectric light emitting module 2 vibrates, but the vibration frequency is high. So it appears to the human eye to emit light almost simultaneously. Moreover, since the piezoelectric element 6 functions as a current source as described above, the parallel connection in the opposite direction reduces the amount of light emitted from each light-emitting element 8 composed of the light-emitting diodes than the parallel connection in the same direction. Can be bigger.

  The light emitting element 8 may be provided on one side or both sides in the length L direction of the piezoelectric light emitting module 2 as in the example shown in FIG. 1, or may be provided on one side or both sides in the thickness T direction. You may provide in the one side or both sides of the width W direction, and may combine these.

  When the piezoelectric light emitting module 2 collides with another object, for example, a container, the piezoelectric light emitting module 2 freely vibrates, the piezoelectric element 6 generates electric power, and the light emitting element 8 emits light. This will be described with reference to the example of FIG. 5. When the container 22 containing the piezoelectric light emitting module 2 is shaken to cause the piezoelectric light emitting module 2 to collide with the container 22 as indicated by an arrow C, the piezoelectric light emitting module 2 is caused by the collision. At the moment of the collision, a displacement force is applied to the piezoelectric light emitting module 2 and the internal piezoelectric element 6 (see FIG. 1), and the piezoelectric light emitting module 2 bends as shown by a solid line, and the piezoelectric element 6 generates electric power. Not only the light emitting element 8 emits light (9 indicates the light), but also for a short time following the collision, the piezoelectric light emitting module 2 rebounds as indicated by the arrow D and floats in the space. As indicated by a two-dot chain line, the module 2 freely vibrates at the resonance frequency of the entire module 2, and during that time, the piezoelectric element 6 generates power and the light emitting element 8 emits light. There are various vibration modes of the piezoelectric light emitting module 2, and FIG. 5 shows an example exaggeratedly.

  Referring again to FIG. 1, the light emitted from the light emitting element 8 as described above exposes at least a part of the light emitting element 8 from the covering material 12, so whether or not the covering material 12 is transparent or translucent. Regardless, people can see it.

  As described above, the piezoelectric light emitting module 2 uses the free vibration type of the piezoelectric element 6 and can use free vibration in a state where the module 2 is completely floating in the space. Is very high and can emit light with high efficiency. For example, when one or a plurality of piezoelectric light emitting modules 2 housed in a transparent container (for example, see FIG. 4) is shaken to a normal degree by hand, the light emitting element 8 shines in a room with normal brightness. Fully visible. In a dim place, the light emitted from the light emitting element 8 appears bright and shining.

  In addition, since the piezoelectric light emitting module 2 can emit light by colliding itself with another object, the impactor and its guide mechanism which are necessary in the case of the conventional free vibration type are also unnecessary.

  Furthermore, in addition to the piezoelectric element 6 being fixed and reinforced by the substrate 4, the piezoelectric light emitting module 2 has a piezoelectric light emitting body 10 covered with a covering material 12 and solidified so as to be integrated. Is high, hard to break, and highly reliable.

  Further, since the piezoelectric light emitting module 2 is completed as a piezoelectric light emitting product by itself, the piezoelectric light emitting module 2 can be easily used for various applications and is extremely versatile. Some of the applied products using the piezoelectric light emitting module 2 will be described later.

  In addition, since the substrate 4 functions as described above, it is preferable to provide the substrate 4 and fix the piezoelectric element 6 to the substrate 4 as in this embodiment. A piezoelectric light emitting body 10 in which the light emitting element 8 is electrically connected to the piezoelectric element 6 or a plurality of piezoelectric elements 6 fixed to each other may be used. In this case, the electrical connection between the piezoelectric element 6 and the light emitting element 8 may be performed by a known wiring means such as a lead wire or a film conductor. In the case of such a piezoelectric light emitting module 2 as well, the piezoelectric light emitting main body 10 including the wiring means is finally covered and solidified with the covering material 12, so that the mechanical strength can be increased. . Therefore, the reliability is high.

  Further, the entire piezoelectric light emitting body 10 (that is, the whole including the light emitting element 8) may be covered with a transparent or translucent covering material 12 and solidified to be integrated. In this case, the light emitted from the light emitting element 8 goes out through the covering material 12 and can be seen by a person.

  In this way, it is not necessary to expose a part of the light emitting element 8 when the piezoelectric light emitting body 10 is covered with the covering material 12, so that the covering material 12 can be easily covered. And since it is not necessary to project the light emitting element 8 from the coating | covering material 12, the mechanical strength of the piezoelectric light emitting module 2 is higher, and reliability becomes higher.

  Further, the piezoelectric light emitting body 10 is covered with the covering material 12 without any gap, and more specifically, the gap between the piezoelectric light emitting body 10 and the covering material 12 or a gap such as a pinhole does not occur in the covering material 12. The piezoelectric light emitting module 2 may be waterproofed by covering. For this, for example, a vacuum forming method in which the covering material 12 is molded on the piezoelectric light emitting body 10 in a vacuumed atmosphere may be used. When waterproof, this piezoelectric light emitting module 2 can be used with high reliability even in a state where it touches a liquid such as water.

[Piezoelectric light emitting device]
FIG. 4 is a sectional view showing an embodiment of the piezoelectric light emitting device according to the present invention. The piezoelectric light emitting device 20 is configured by housing the piezoelectric light emitting module 2 as described above in a container 22 without being fixed. “Unfixed” can be rephrased as a movable state or a vibratable state. The same applies to other embodiments and other applied products described later.

  In this embodiment and the embodiment shown in FIGS. 6, 8, and 9, a spherical shape having an inner diameter (inner diameter) of about 1.5 to 2 times the length L (see FIG. 1) of the piezoelectric light emitting module 2. A container 22 is used in which each piezoelectric light emitting module 2 can move freely or almost freely.

  The container 22 is made of plastic, for example. The container 22 may be at least partially transparent or translucent. This is because the light emitted from the piezoelectric light emitting module 2 (more specifically, the light emitting element 8) can be seen from the outside through the portion. However, it is more preferable that as much part or the whole of the container 22 is transparent or translucent. Further, the transparent is more preferable than the translucent. This is because the light emitted from the piezoelectric light emitting module 2 can be more easily seen from the outside. The transparent or translucent part may be colorless or colored. The same applies to the other embodiments shown in FIGS. 6, 8, and 9. The same applies to the container 34 shown in FIG. 11, the sound generating part container 54 shown in FIG. 12, and the wall surface of the second chamber 66 shown in FIG.

  The shape of the container 22 is spherical in this embodiment, but may be other than that and is arbitrary. For example, a cylindrical shape or a box shape may be used. The same applies to the other embodiments shown in FIGS. 6, 8, and 9. The same applies to the shapes of the container 34 shown in FIG. 11, the sound generating part container 54 shown in FIG. 12, and the second chamber 66 shown in FIG.

  The number of piezoelectric light emitting modules 2 housed in the container 22 is one or more and is arbitrary. In this embodiment, other embodiments described below, and other applications, two or three are shown for illustrative purposes only or for simplicity of illustration. However, the number of the piezoelectric light emitting modules 2 housed in the container 22 is preferably plural, and even more than several are more preferable. This is because light can be generated from more piezoelectric light emitting modules 2 and light emitted from the piezoelectric light emitting modules 2 can be used more effectively. The same applies to other embodiments and other applied products described later.

  When a plurality of piezoelectric light emitting modules 2 are accommodated, the light emission colors of the piezoelectric light emitting modules 2 may be the same or different from each other. If they are different from each other, the light emission colors can be mixed to produce various colors of light, so that the effects such as visual fun and beauty can be further enhanced. A plurality of piezoelectric light emitting modules 2 may emit the three primary colors of red, green, and blue. In this case, the light emission colors are mixed in various proportions to produce a rainbow-colored light. Therefore, the above effect is further enhanced. The same applies to other embodiments and other applied products described later.

  When vibration is applied to the piezoelectric light emitting device 20, for example, when it is held and shaken, the piezoelectric light emitting module 2 is housed without being fixed in the container 22, so that the piezoelectric light emitting module 2 is placed on the wall surface of the container 22. When a plurality of piezoelectric light emitting modules 2 are collided, they may collide with each other. For example, the action described above with reference to FIG. By using vibration, light can be emitted with high efficiency. The light 9 (see FIG. 5) emitted by the piezoelectric light emitting module 2 goes out through the transparent or translucent portion of the container 22 so that it can be seen by a person. Therefore, the piezoelectric light emitting module 2 is stored in the container 22 without being fixed, and has an interesting effect of emitting light when shaken.

  As in the piezoelectric light emitting device 20 shown in FIG. 6, water or other liquid 24 may be placed in the container 22 while leaving a space. The reason why the space is left is to prevent the liquid 24 from filling the container 22 even when the container 22 is shaken, because the piezoelectric light emitting module 2 in the container is less likely to collide with the container 22 due to the resistance of the liquid 24 and light emission is difficult. Because. As will be described later, the main purpose of the liquid 24 is to cause the liquid 24 to adhere to the inner wall of the container 22 in an accidental state. It may be about 5% to 30%. The liquid 24 preferably has a high fluidity such as water. The liquid 24 may be colorless or colored.

  According to this piezoelectric light emitting device 20, when it is shaken, as shown in the example shown in FIG. 7, the liquid 24 put in the container 22 adheres to the inner wall of the container accidentally, for example, adheres in the form of a waved film. Since the incidental liquid 24 can refract or reflect the light 9 emitted from the piezoelectric light emitting module 2, the state of the light 9 that goes out of the container 22 can be variously changed. The fantastic effect can be enhanced.

  As in the piezoelectric light emitting device 20 shown in FIG. 8, the outside of the container 22 may be covered with a transparent or translucent sound absorbing material 26 that attenuates sound. In this embodiment, the sound absorbing material 26 is a film (that is, a sound absorbing material film). The sound absorbing material 26 is, for example, silicone rubber. In addition, since a material softer than the container 22 can attenuate sound, such a material may be used as the sound absorbing material 26. The same applies to the embodiment shown in FIG.

  According to the piezoelectric light emitting device 20, it is possible to mitigate the impact sound generated by the piezoelectric light emitting module 2 colliding with the container 22 when it is shaken by the sound absorbing material 26.

  Further, as in the example shown in FIG. 9, the container 22 has a double structure composed of an inner container 22a and an outer container 22b, and the sound is attenuated between the inner container 22a and the outer container 22b. A transparent or translucent sound absorbing material 26 may be filled.

  According to this piezoelectric light emitting device 20, when the piezoelectric light emitting module 20 is shaken, the impact sound generated by the piezoelectric light emitting module 2 colliding with the container 22 (more specifically, the inner container 22 a) is emitted to the outside. Further relaxation can be achieved by the container 22 and the sound absorbing material 26.

  Concavities and convexities for diffusing light may be formed on the surface of the container 22 (in the case of a double structure, at least one of the inner container 22a and the outer container 22b), that is, on at least one of the inner surface and the outer surface. Instead of or in combination with it, irregularities for diffusing light may be formed on the surface of the sound absorbing material 26, that is, on at least one of the inner surface and the outer surface. The cross-sectional shape of the unevenness is, for example, a triangular shape, a rectangular shape, a wave shape, or the like. If it does in this way, since the light which the piezoelectric light emitting module 2 emits can be diffused by the said unevenness | corrugation, light can be emitted to a more complicated and wide range, and the effect of light can be improved more.

[Piezoelectric light-emitting shoes]
FIG. 10 is a perspective view showing an embodiment of a piezoelectric light-emitting shoe according to the present invention, with a part of the shoe cut away. This piezoelectric light emitting shoe 30 is formed by attaching a piezoelectric light emitting device 32 such as the example shown in FIG.

  Referring to FIG. 11, the piezoelectric light emitting device 32 is formed by housing at least one piezoelectric light emitting module 2 as described above in a transparent or translucent container 34 without being fixed. . The shape of the container 34 is, for example, a cylindrical shape or a rectangular tube shape. In this example, at least one end face 36 of the container 34 is transparent or translucent. Each piezoelectric light emitting module 2 is accommodated so that the light emitting element 8 faces the end face 36 side.

  Referring to FIG. 10 again, in this embodiment, the piezoelectric light emitting device 32 as described above is incorporated in the heel part 42 of the shoe sole 40 with the end face 36 of the container 34 exposed at the rear part.

  However, the piezoelectric light emitting device 32 may be attached to a portion other than the heel portion 42 of the shoe 38 by being incorporated. For example, it may be incorporated in the toe portion of the shoe sole 40 or attached to the upper toe portion of the shoe 38. In that case, when a part of the container 34 is transparent or translucent, the position of the transparent or translucent part is determined according to the location where the piezoelectric light emitting device 32 is attached, and at least a part of the part is exposed from the shoe 38. You should do it. The orientation of the piezoelectric light emitting module 2 housed in the container 34 may be determined according to the position of the exposed portion.

  When the piezoelectric light emitting shoe 30 is worn, walked, run, or bounced, the piezoelectric light emitting module 2 is housed without being fixed in the container 34, so that the piezoelectric light emitting module 2 collides with the wall surface of the container 34. When a plurality of the piezoelectric light emitting modules 2 are inserted, they may collide with each other. As a result, by using the same action as described above, the free vibration in the state of floating in the space of the piezoelectric light emitting modules 2 is used. Light can be emitted efficiently. The light 9 emitted by the piezoelectric light emitting module 2 goes out through the transparent or translucent portion of the container 34 exposed from the shoe 38, so that it can be seen by a person. Therefore, the piezoelectric light emitting device 32 that is housed without fixing the piezoelectric light emitting module 2 in the container 34 is attached to the shoe 38, and has an interesting effect that light is emitted when walking, running, or jumping. Play.

  Even if the piezoelectric light emitting device 32 is incorporated in the heel part 42 of the shoe 38, the piezoelectric light emitting device 32 has the container 34 as described above, so that the bending force due to the human body weight is applied to the internal piezoelectric light emitting module 2. It can be prevented from joining. In order to make the prevention more reliable, the strength of the container 34 may be increased as necessary.

[Piezoelectric light emitting maracas]
FIG. 12 is a cross-sectional view showing an embodiment of a piezoelectric light emitting maraca according to the present invention. To put it simply, a maraca is a musical instrument in which grains such as seeds are put and shaken.

  The piezoelectric light emitting maraca 50 has an elliptical spherical shape, at least a part of which is transparent or translucent, and has a sound generating portion container 54 of a maraca 52 having a handle 56 that supports the sound generating portion container 54 as described above. One or more piezoelectric light emitting modules 2 are accommodated without being fixed.

  The shape of the sound generating portion container 54 may be other than the above shape. For example, a true spherical shape or a cylindrical shape may be used. Further, the maraca 52 without the handle 56 may be used.

  It is preferable that as many portions as possible (for example, the first half or more) or the whole of the sound generating portion container 54 are transparent or translucent, and more transparent than translucent is more preferable as described above. The transparent or translucent part may be colorless or colored. A pattern may be provided on the surface of the sound generating unit container 54 or the like. The sound generator container 54 is made of plastic, for example.

  As described above, the number of the piezoelectric light emitting modules 2 housed in the sound generating portion container 54 is preferably plural, and several or more are more preferable among the plural.

  In the sound generation part container 54, as in this example, together with the piezoelectric light emitting module 2, grains 58 for producing the original sound of maracas may be placed. For example, if the number of piezoelectric light emitting modules 2 to be accommodated is small, such as one or two, and the sound emitted by the impact sound of the piezoelectric light emitting module 2 is insufficient, an appropriate number of piezoelectric light emitting modules 2 can be used together. It is preferable to put grains 58 therein. When the number of piezoelectric light emitting modules 2 to be accommodated is large and a necessary sound can be produced only by the collision sound of the piezoelectric light emitting modules 2, only the piezoelectric light emitting modules 2 may be inserted without the grains 58. . Note that seeds and small spherical grains are also included in the grains 58 referred to herein.

  Further, when a plurality of the piezoelectric light emitting modules 2 are accommodated in the sound generating portion container 54, as described above, the light emission colors of the piezoelectric light emitting modules 2 may be the same or different from each other. If they are different from each other, the light emission colors can be mixed to produce various colors of light, so that the effects such as visual fun and beauty can be further enhanced. A plurality of piezoelectric light emitting modules 2 may emit the three primary colors of red, green, and blue. In this case, the light emission colors are mixed in various proportions to produce a rainbow-colored light. Therefore, the above effect is further enhanced.

  When this piezoelectric light emitting maraca 50 is shaken by hand, since the piezoelectric light emitting module 2 is housed without being fixed in the sound generating part container 54, the piezoelectric light emitting module 2 collides with the wall surface of the sound generating part container 54, When a plurality of piezoelectric light emitting modules 2 are inserted, they may collide with each other, generate a rhythm sound, and use free vibration in a state floating in the space of the piezoelectric light emitting module 2 by the same action as described above. Can emit light with high efficiency. Since the light emitted from the piezoelectric light emitting module 2 goes out through the transparent or translucent portion of the sound generating portion container 54, it can be seen by a person. Accordingly, when the maracas 52 is shaken, that is, when the piezoelectric light emitting maracas 50 is shaken, the piezoelectric light emitting module 2 is accommodated in an extremely simple structure in which the piezoelectric light emitting module 2 is housed without being fixed in the sound generating portion container 54. There is an interesting effect that sound and light can be emitted simultaneously.

[Piezoelectric light emitting seasoning container]
FIG. 13 is a cross-sectional view showing an embodiment of the piezoelectric light emitting seasoning container according to the present invention. The piezoelectric light emitting seasoning container 60 has a first chamber 64 for storing the seasoning 74 and a second chamber 66 separated from the first chamber 64 by a partition wall 68, and at least a part of the wall surface of the second chamber 66 is transparent or translucent. It has the container 62 which is. The seasoning 74 is, for example, salt, pepper, other spices, chemical seasonings and the like. At the outlet of the first chamber 64, there are provided a plurality of small holes 70 through which the seasoning 74 is drawn, and a lid 72 that can be opened and closed or detachable is covered there. The container 62 is made of, for example, transparent glass or plastic as a whole.

  The piezoelectric light emitting seasoning container 60 is formed by storing at least one piezoelectric light emitting module 2 as described above in the second chamber 66 of the container 62 without being fixed. The number of the piezoelectric light emitting modules 2 to be accommodated and the preferable luminescent colors are as described above.

  When the piezoelectric light emitting seasoning container 60 is held and shaken, the seasoning 74 placed in the first chamber 64 can be shaken out, and the piezoelectric light emitting module 2 is stored in the second chamber 66 without being fixed. Therefore, when the piezoelectric light emitting module 2 collides with the wall surface of the second chamber 66 and a plurality of the piezoelectric light emitting modules 2 are inserted, they may collide with each other. It is possible to emit light with high efficiency by utilizing free vibration in a state where it floats in the space of the module 2. The light emitted from the piezoelectric light emitting module 2 goes out through the transparent or translucent portion of the wall surface of the second chamber 66, so that it can be seen by a person. Therefore, the piezoelectric light emitting module 2 is stored in the second chamber 66 of the container 62 without being fixed, and has an interesting effect of emitting light when the seasoning 74 is shaken out.

It is a figure which shows one Embodiment of the piezoelectric light emitting module which concerns on this invention, (A) is a partially notched top view, (B) is sectional drawing in alignment with line BB. It is a figure which shows an example of the wiring diagram of the piezoelectric element and light emitting element in FIG. It is a figure which shows the other example of a connection in the case of using a light emitting diode as a light emitting element. It is sectional drawing which shows one Embodiment of the piezoelectric light-emitting device which concerns on this invention. FIG. 5 is an exaggerated view showing an example of a state during light emission of the piezoelectric light emitting module in the embodiment of FIG. 4, and the piezoelectric light emitting module is seen from the thickness T direction of FIG. 1. It is sectional drawing which shows other embodiment of the piezoelectric light-emitting device based on this invention. It is a figure which shows an example of the light emission state of the piezoelectric light emission module in the piezoelectric light emission instrument of FIG. It is sectional drawing which shows other embodiment of the piezoelectric light-emitting device which concerns on this invention. It is sectional drawing which shows other embodiment of the piezoelectric light-emitting device which concerns on this invention. 1 is a perspective view showing an embodiment of a piezoelectric light-emitting shoe according to the present invention, with a part of the shoe cut away. It is sectional drawing which expands and shows an example of the piezoelectric light-emitting device in FIG. It is sectional drawing which shows one Embodiment of the piezoelectric light emission maracas based on this invention. It is sectional drawing which shows one Embodiment of the piezoelectric light emission seasoning container which concerns on this invention. It is the schematic which shows the example of the structure using a piezoelectric element with a cantilever vibration type. It is the schematic which shows the example of the structure which utilizes a piezoelectric element with a free vibration type.

Explanation of symbols

DESCRIPTION OF SYMBOLS 2 Piezoelectric light emitting module 4 Board | substrate 6 Piezoelectric element 8 Light emitting element 9 Light 10 Piezoelectric light emission main body 12 Coating | covering material 20 Piezoelectric light emitting instrument 22 Container 24 Liquid 26 Sound absorbing material 30 Piezoelectric light emitting shoe 32 Piezoelectric light emitting instrument 34 Container 38 Shoes 50 Piezoelectric light emitting maracas 52 Maracas 54 Sound generator container 60 Piezoelectric light emitting seasoning container 62 Container 64 First chamber 66 Second chamber

Claims (11)

A piezoelectric light emitting body comprising a piezoelectric element that converts mechanical energy into electric energy fixed to a substrate and a light emitting element that emits light by electricity generated by the piezoelectric element is electrically connected to at least a part of the light emitting element. Piezoelectric light emission characterized in that one or more piezoelectric light emitting modules formed by exposing and integrating with a covering material are housed in a transparent or translucent container without being fixed. Instruments. The entire piezoelectric light-emitting body, which is composed of a piezoelectric element that converts mechanical energy into electrical energy, fixed to a substrate and electrically connected to the piezoelectric element that emits light by the electricity generated, is transparent or translucent. A piezoelectric light emitting device comprising at least one piezoelectric light emitting module formed by covering and integrating with a covering material without being fixed in a transparent or translucent container. The piezoelectric light-emitting device according to claim 1 or 2 , wherein a liquid is placed in the container with a space left. The piezoelectric light-emitting device according to claim 1, 2 or 3 , wherein irregularities for diffusing light are formed on at least one of the inner surface and the outer surface of the container. The piezoelectric light emitting apparatuses according to the outside of the container, to claim 1, 2, 3 or 4 be one attenuating the sound is covered with a transparent or semi-transparent sound-absorbing material. The container has a double structure composed of an inner container and an outer container, and a transparent or translucent sound absorbing material is filled between the inner container and the outer container to attenuate sound. The piezoelectric light-emitting device according to 1, 2, 3, or 4 . The piezoelectric light-emitting device according to claim 5 or 6 , wherein irregularities for diffusing light are formed on at least one of an inner surface and an outer surface of the sound absorbing material. A piezoelectric light-emitting body comprising a piezoelectric element that converts mechanical energy into electric energy fixed to a substrate, and a light-emitting element that emits light by electricity generated by the piezoelectric element is electrically connected to at least a part of the light-emitting element. One or more piezoelectric light emitting modules formed by exposing and integrating with a covering material are housed in a sound generating part container in which at least a part of maracas is transparent or translucent without being fixed. Piezoelectric light emitting maracas. The entire piezoelectric light-emitting body, which is composed of a piezoelectric element that converts mechanical energy into electrical energy, fixed to a substrate and electrically connected to the piezoelectric element that emits light by the electricity generated, is transparent or translucent. Piezoelectric light-emitting module comprising at least one piezoelectric light-emitting module formed by covering and integrating with a covering material in a transparent or translucent sound generating portion container without being fixed. Maracas. A piezoelectric light-emitting body comprising a piezoelectric element that converts mechanical energy into electric energy fixed to a substrate, and a light-emitting element that emits light by electricity generated by the piezoelectric element is electrically connected to at least a part of the light-emitting element. The piezoelectric light-emitting module formed by exposing and integrating with a covering material has a first chamber containing a seasoning and a second chamber isolated from it, and at least a part of the wall surface of the second chamber is transparent Alternatively, the piezoelectric light emitting seasoning container is characterized in that one or more are stored without being fixed in the second chamber of the translucent container. The entire piezoelectric light-emitting body, which is composed of a piezoelectric element that converts mechanical energy into electrical energy, fixed to a substrate and electrically connected to the piezoelectric element that emits light by the electricity generated, is transparent or translucent. A piezoelectric light emitting module formed by coating and integrating with a covering material of the above has a first chamber for containing seasonings and a second chamber isolated from the first chamber, and at least a part of the wall surface of the second chamber is transparent or translucent. A piezoelectric light emitting seasoning container, wherein one or more are stored without being fixed in a second chamber of a container.

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