Electret self-generating wireless signal transmitter

Abstract

The utility model relates to the electronic field, in particular to the radio technology. The electret self-generating wireless signal transmitter comprises a wireless signal transmitter and a power supply, and the power supply is an electret self-generating power supply. The electret self-generating power supply comprises a shell and a movable key assembled on the shell; the power generation device further comprises an electret power generation mechanism, the electret power generation mechanism comprises an electret shell, and an electret film and an electrode moving relative to the electret film are arranged in the electret shell. The device further comprises an elastic mechanism which drives the electret power generation mechanism. One of an electret shell and an electrode of the electret power generation mechanism is connected with the elastic mechanism; the key is directly or indirectly connected with the elastic mechanism through a limiting release mechanism; and the limiting release mechanism is a mechanism which is disconnected after acting to a limiting position and is reconnected after resetting.

Description

Technical Field

[0001] The utility model relates to the field of electronics, and particularly to radio technology. Background Art

[0002] A wireless signal transmitter requires power supply. Some existing wireless signal transmitters use a self-powered power source that generates electricity through mechanical energy.

[0003] The self-powered power sources that generate electricity through mechanical energy used in existing electronic products are often large in size, complex in structure, and high in cost. For some self-powered power sources with a small size, there is often a problem of insufficient power generation.

[0004] The performance of the existing self-powered power sources that generate electricity through mechanical energy affects the size, usability, cost, service life, etc. of the wireless signal transmitter. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an electret self-powered wireless signal transmitter to solve at least one of the above technical problems.

[0006] The technical problems solved by the utility model can be realized by adopting the following technical solutions:

[0007] An electret self-powered wireless signal transmitter, comprising a wireless signal transmitter and a power source, characterized in that:

[0008] The power source adopts an electret self-powered power source, and the electret self-powered power source includes a housing, and further includes a movable key assembled on the housing;

[0009] It further includes an electret power generation mechanism;

[0010] The electret power generation mechanism includes an electret housing, an electret film arranged in the electret housing, and an electrode moving relative to the electret film;

[0011] It further includes an elastic mechanism, and the elastic mechanism drives the electret power generation mechanism;

[0012] One of the electret housing and the electrode of the electret power generation mechanism is connected to the elastic mechanism;

[0013] The key is directly or indirectly connected to the elastic mechanism through a limit release mechanism; the limit release mechanism is a mechanism that disconnects the connection relationship after moving to a limited position and reconnects after resetting.

[0014] Through the above design, in the initial stage of pressing or pulling the key, since the elastic mechanism is not driven to move to the limited position, the key drives the elastic mechanism to generate elastic potential energy.

[0015] After reaching the limit position, the limit release mechanism disconnects the connection relationship to complete the release of the elastic mechanism. After the release of the elastic mechanism, it vibrates due to elasticity, thereby driving the electret power generation mechanism to generate oscillating (vibrating) deformation and repeatedly generating continuous electric energy. It has the advantages of small volume, simple structure, low cost, long power generation time, and stable current.

[0016] The electret power generation mechanism is characterized by small volume and high power generation voltage. It can generate a smaller power source that utilizes mechanical energy and can be used for some energy capture in life.

[0017] Regarding the necessary electrode settings in the structure of the electret power generation mechanism, no specific description is made. The electret film can be an electret film formed by materials such as polarized polytetrafluoroethylene (PTFE), polyvinylidene fluoride (PVDF), poly-L-lactic acid, and PMN-PT composite materials.

[0018] The elastic mechanism can be a spring, an elastic sheet (such as an elastic metal sheet), an elastic pad (such as an elastic rubber pad), or other elastic components or mechanisms.

[0019] In a further design, one of the electret shell and the electrode of the electret power generation mechanism can be fixed inside the outer shell, and the other is connected to the elastic mechanism.

[0020] By using the outer shell of the electret self-power generation power supply as a support and bracket, when the elastic mechanism vibrates (oscillates) due to elasticity, it can effectively drive the electret film and the electrode inside the electret shell to produce a larger relative movement and generate electric energy more effectively.

[0021] It can be selected that the electret shell of the electret power generation mechanism is fixed on the outer shell, and the electrode is connected to the elastic mechanism. This can avoid damaging the circuit when the outer shell moves.

[0022] Furthermore, one end of the elastic mechanism is connected to the electrode, and a counterweight is provided at the other end.

[0023] Through the counterweight, the elastic mechanism can vibrate with a larger amplitude for a longer time. It can drive the relative movement of the electrode and generate electric energy with a higher voltage and more stable current more continuously.

[0024] The limit release mechanism can adopt a mechanical limit release mechanism. However, the mechanical limit release mechanism has the disadvantages of complex structure, component wear during operation, unstable performance, and high cost.

[0025] In this patent, furthermore, the limit release mechanism includes two magnetic components, at least one of which is a permanent magnet; in the limit release mechanism, the two magnetic components play a connection relationship that can be disconnected and reconnected;

[0026] The first magnetic component is connected to the button, and the second magnetic component is connected to one of the electret shell and the electrode of the electret power generation mechanism through an elastic mechanism; among the electret shell and the electrode, the one not connected to the elastic mechanism is fixedly connected to the outer shell;

[0027] The second magnetic component functions as a counterweight for the elastic mechanism at the same time.

[0028] The limit release mechanism may further include a limit component for restricting the movement amplitude of the elastic mechanism, and the limit component is arranged on the movement track of the elastic mechanism.

[0029] When the elastic mechanism moves to the position of the limit component, it is blocked, and then the two magnetic components are separated.

[0030] The weight of the second magnetic component uses a magnetic component with a mass greater than 3 g and less than 20 g. Through experiments, the counterweight of this weight is easy to vibrate and will not cause the device to be easily damaged due to excessive weight.

[0031] Because the second magnetic component is only supported by the electret power generation mechanism during operation, it is relatively fragile during operation or transportation. In this patent, it is limited to be greater than 3 g and less than 20 g, which not only ensures the vibration amplitude and frequency but also ensures the reliability of the system.

[0032] Furthermore, the second magnetic component uses a soft magnetic component, and the first magnetic component uses a permanent magnet.

[0033] Avoid unnecessary magnetic field changes caused by the second magnetic component during oscillation, which hinders the oscillation action.

[0034] Furthermore, one end of the elastic mechanism is fixedly connected to the outer shell, and the other end of the elastic mechanism is bent and folded to form the second magnetic component.

[0035] It not only ensures the counterweight performance but also realizes integration.

[0036] Furthermore:

[0037] The stroke of the first magnetic component connected to the button exceeds the limit stroke of the second magnetic component restricted by the elastic mechanism.

[0038] Since the stroke of the first magnetic component connected to the button is greater than the limit stroke of the second magnetic component restricted by the elastic mechanism, the two magnetic components are separated after the button reaches a certain amplitude, completing the work of the limit release mechanism.

[0039] Preferably, the button is fixedly connected to the first magnetic component. Reducing the number of moving parts or intermediate connecting parts can improve the performance stability and reduce the cost.

[0040] The limiting travel mode of the elastic mechanism for the second magnetic component can be limited by increasing the elastic force.

[0041] During the travel of the first magnetic component connected to the key, there is a position where the magnetic force between the two magnetic components is less than the elastic force of the elastic mechanism.

[0042] During the key-pressing process, the elastic force of the elastic mechanism increases and exceeds the magnetic force, thereby limiting the travel of the second magnetic component. Therefore, after the key is pressed to a certain extent, the two magnetic components separate.

[0043] During the working process, when the key is pressed, since the travel of the first magnetic component connected to the key is greater than the limiting travel of the second magnetic component restricted by the increase in the elastic force of the elastic mechanism, the two magnetic components separate after the key is pressed to a certain extent.

[0044] When the key is pressed, when the two magnetic components move together with the key, the elastic force of the elastic mechanism increases accordingly. When the elastic force increases to a level greater than the magnetic force, the travel of the second magnetic component is restricted and it no longer follows the movement, and then the two magnetic components separate.

[0045] After separation, due to the rapid attenuation of the magnetic force (during the process of the two magnetic components separating from just being separated to further separation, there will be a process of rapid decline in the magnetic force), the elastic mechanism rebounds quickly. And because the second magnetic component serves as a counterweight, continuous vibrations or oscillations with a relatively large amplitude are generated, generating a continuous current with a relatively high voltage.

[0046] In the above design, without adding a limiting component, only through the original components and through mechanical changes, the limiting function is completed.

[0047] Also, due to the existence of the magnetic force between the two magnetic components, after the key is released, it is easy to automatically re-engage and complete the reset.

[0048] The above design adopts the simplest structure to complete the design, and has the advantages of simple structure, low cost, reliable performance, etc.

[0049] A buffer layer is provided between the two magnetic components, and the buffer layer is fixed on one of the magnetic components. It is used to reduce or avoid the collision damage during the reset of the magnetic components and has a noise reduction effect, reducing the possible noise during operation.

[0050] Further preferably, the buffer layer is made of a rubber sleeve and is sleeved on one of the magnetic components.

[0051] Furthermore, it can be selected that the electrodes of the electret power generation mechanism are fixedly connected inside the housing, and the electret shell is connected to the elastic mechanism.

[0052] This design can use the electret shell and the parts in the electret shell that are linked to the electret shell as counterweights. This allows the elastic mechanism to vibrate continuously for a longer period of time. This allows the generation of electric energy with a higher voltage and more stable current to be more sustained. This can also reduce the amount of extra counterweights or reduce the weight of the extra counterweights.

[0053] As long as the electret self-generating power source generates current within 1 second, it is sufficient to complete the remote control operation. In order to reduce the requirements for the circuit part, reduce production costs and increase reliability. The reliable current output is preferably greater than 0.1 milliseconds. The capacitor can be used to store electricity, and when a set voltage is reached, it is triggered to work, which is used to transmit signals in a shorter time using a larger current and voltage.

[0054] The structure of the electret power generation mechanism has the characteristics of low cost, stable material supply, and easy mass production. When used in the structure of this patent, sufficient accommodation space can be provided for the electret power generation mechanism, and the electret power generation mechanism can generate an appropriate current of appropriate size.

[0055] Furthermore, the electret shell of the electret power generation mechanism is provided with at least one electret film and two electrodes, one being an upper electrode and the other being a lower electrode;

[0056] The electret film is arranged between two electrodes;

[0057] The lower electrode is fixed in the electret shell;

[0058] The lower electrode and the electret film are movably connected via an elastic material layer;

[0059] The electret film and the upper electrode are movably connected via an elastic material layer.

[0060] This design enables the upper electrode, the lower electrode and the electret film to move relative to each other, so that both the upper electrode and the lower electrode can induce induced charges. Connecting the upper electrode and the lower electrode as the two poles of the power supply to the circuit can obtain higher voltage and current. Specific embodiment one:

[0062] The movable key mounted on the housing is a lever-type key;

[0063] The lever-type button comprises a pressing end for pressing, a rotating shaft, and a driven end for following the movement;

[0064] The driven end of the button is directly or indirectly connected to the elastic mechanism through a limit release mechanism.

[0065] A lever-type button is adopted, which facilitates adjusting the force required when pressing the button by adjusting the length ratio of the pressing end and the driven end to the rotation axis, thereby obtaining a good sense of operation.

[0066] It is possible to adopt that the first magnetic component is fixed at the bottom of the driven end. The bottom of the driven end may refer to the part of the lever-type button hidden by the housing. When the housing is placed upright and the lever-type button is facing upward, the bottom of the driven end refers to the position below the driven end.

[0067] The following structure can also be adopted. A connecting line is connected to the driven end, and the first magnetic component is connected through the connecting line.

[0068] This can allow the first magnetic component to have a more flexible movement trajectory and allow the electret power generation mechanism to have a more flexible placement position.

[0069] Specifically, it can be:

[0070] The housing is placed vertically, and the driven end is located in the upper part; the electret power generation mechanism is fixed on the housing and is located below the driven end;

[0071] In the electret power generation mechanism, the electrode connected to the elastic mechanism is placed upward;

[0072] The second magnetic component connected to the elastic mechanism is located above the outside of the electret housing;

[0073] A connecting line is connected to the driven end, and the first magnetic component is connected through the connecting line.

[0074] Through the above design, the thickness or height of the electret power generation mechanism and the length of the elastic mechanism are no longer affected by the thickness of the housing. The increase in the length of the elastic mechanism can effectively increase the vibration amplitude and vibration duration.

[0075] Therefore, the above design allows the manufacture of an ultra-thin electret self-powered power source and can ensure good power output.

[0076] At least one guiding through hole is further provided in the housing. The connecting line passes through the guiding through hole and is connected to the first magnetic component after being guided.

[0077] Preferably, the inner wall of the guiding through hole is a metal layer to reduce wear.

[0078] Preferably, a guiding through hole is provided at a position close to the driven end; another guiding through hole is provided at a position close to one end of the second magnetic component;

[0079] Both guiding through holes are provided at the bottom of the housing, and the height is not higher than 5 mm from the bottom.

[0080] One is to increase firmness by reducing the distance. The other is to enable the bottom of the outer shell to provide a certain support or block for the first magnetic component, preventing the first magnetic component from shaking too much. Specific Embodiment 2:

[0082] The movable button assembled on the outer shell is a push-button;

[0083] There is a button hole on the outer shell, and the push-button is installed on the outer shell through the button hole;

[0084] The push-button includes a pressing end for pressing and a follower end hidden inside the outer shell that moves along;

[0085] The follower end of the button is directly or indirectly connected to the elastic mechanism through a limit release mechanism.

[0086] Using a push-button has the advantages of simple structure, stable performance, and easy miniaturization.

[0087] It can be adopted that the first magnetic component is fixed at the bottom of the follower end. When the outer shell is placed upward and the push-button is upward, the bottom of the follower end refers to the position below the follower end.

[0088] The following structure can also be adopted. A connecting line is connected to the follower end, and the first magnetic component is connected through the connecting line.

[0089] This can allow the first magnetic component to have a more flexible movement trajectory and allow the electret power generation mechanism to have a more flexible placement position.

[0090] Specifically, it can be:

[0091] The limit release mechanism includes two magnetic components, at least one of which is a permanent magnet; in the limit release mechanism, the two magnetic components have a connectable and reconnectable connection relationship;

[0092] When the push-button is placed upward, the first magnetic component is arranged below the follower end;

[0093] The electret power generation mechanism is directly or indirectly fixed inside the outer shell and is located above the first magnetic component;

[0094] In the electret power generation mechanism, the electrode connected to the elastic mechanism is placed downward; the second magnetic component connected to the elastic mechanism is located below the outside of the electret shell.

[0095] During operation, when the button is pressed, the stroke of the first magnetic component connected to the button is greater than the limited stroke of the second magnetic component limited by the increased elastic force of the elastic mechanism, so after the button is pressed to a certain extent, the two magnetic components are separated.

[0096] When the key is pressed, the elastic force of the elastic mechanism increases as the two magnetic components move with the key. When the elastic force increases to a level greater than the magnetic force, the travel of the second magnetic component is limited and it no longer moves with the key, and the two magnetic components separate. The elastic mechanism rebounds quickly, and because the second magnetic component acts as a counterweight, a continuous vibration or oscillation with a large amplitude is generated, generating a continuous current with a high voltage.

[0097] Because of the magnetic force between the two magnetic parts, after releasing the button, they are easily attracted again to complete the reset. The above design adopts the simplest structure to complete the design, which has the advantages of simple structure, low cost, reliable performance, etc.

[0098] When the push button is placed upward, a bend protruding to one side is arranged at the lower part of the push button, and the first magnetic component is fixed above the bend.

[0099] The electret power generating mechanism is directly or indirectly fixed in the outer shell and is located on the upper part of the first magnetic component; in the electret power generating mechanism, the second magnetic component connected to the elastic mechanism is located below the outside of the electret shell, and at least part of the second magnetic component extends above the bend, that is, it is located above the first magnetic component.

[0100] This design makes it easier to place the electret generator mechanism, allows the electret generator mechanism to share part of the width space with the push button, allows for a more compact design, and because the first magnetic component is held up by the bend, it is easy to install and more secure.

[0101] Or, there is another design.

[0102] A cavity opened to one side is provided at the lower part of the push-type button, and the first magnetic component is fixed above the bottom of the cavity;

[0103] The electret power generation mechanism is directly or indirectly fixed in the outer shell and is located on the upper part of the first magnetic component; in the electret power generation mechanism, the second magnetic component connected to the elastic mechanism is located below the outside of the electret shell, and at least part of the second magnetic component extends into the cavity and is located above the first magnetic component.

[0104] This design not only satisfies the advantages of the previous design, making the placement position of the electret power generation mechanism simpler, allowing the electret power generation mechanism to share part of the width space with the push-button, and firmly supporting the first magnetic component. Moreover, because the open cavity structure of the push-button is adopted, there are no additional components, and due to the support of the cavity wall, the firmness of the fixed part of the first magnetic component is greatly enhanced. It is easy to use the cavity wall to perform three-dimensional fixation on multiple surfaces of the first magnetic component.

[0105] This enhancement has important positive significance in the structure that relies on the pulling force of the first magnetic component to release energy.

[0106] It not only reduces the production difficulty, but also reduces the cost and increases the reliability of the product.

[0107] In this patent, the rectification, voltage stabilization, energy storage circuits, as well as the wireless, infrared or other signal transmission circuits that are matched with it will not be described in detail in this patent. BRIEF DESCRIPTION OF THE DRAWINGS

[0108] Figure 1 FIG. is a schematic structural diagram of a lever-type button;

[0109] Figure 2 FIG. is another schematic structural diagram of a lever-type button;

[0110] Figure 3 FIG. is a schematic structural diagram of a push-button;

[0111] Figure 4 FIG. is a schematic structural diagram of an electret power generation mechanism. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0112] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below with reference to specific drawings.

[0113] Refer to Figure 1 、 2 FIGS. 3 and 4, the electret self-powered wireless signal transmitter includes a wireless signal transmitter and a power supply, and the power supply uses an electret self-powered power supply.

[0114] The electret self - generating power supply includes a housing 1, and also includes a movable key 2 assembled on the housing 1; it also includes an electret power generation mechanism 3; the electret power generation mechanism 3 includes an electret housing 31, an electret film 32 is arranged in the electret housing 31, and an electrode 33 that moves relative to the electret film 32; it also includes an elastic mechanism 6, the elastic mechanism 6 drives the electret power generation mechanism 3; one of the electret housing 31 and the electrode 33 of the electret power generation mechanism 3 is connected to the elastic mechanism 6; the key 2 is directly or indirectly connected to the elastic mechanism 6 through a limit release mechanism; the limit release mechanism is a mechanism that disconnects the connection relationship after moving to a limited position and reconnects after resetting.

[0115] Through the above design, at the initial stage of pressing or pulling the key 2, since the elastic mechanism 6 is not driven to move to the limited position, the key 2 drives the elastic mechanism 6 to generate elastic potential energy.

[0116] After reaching the limited position, the limit release mechanism disconnects the connection relationship and completes the release of the elastic mechanism 6. After the elastic mechanism 6 is released, it vibrates due to elasticity, and then drives the electret power generation mechanism 3 to generate oscillatory (vibratory) deformation, repeatedly generating continuous electric energy. It has the advantages of small volume, simple structure, low cost, long power generation time, and stable current.

[0117] The electret power generation mechanism 3 has the characteristics of small volume and high power generation voltage. It can generate a more compact power supply that uses mechanical energy to generate electricity. It can be used in some energy capture in life.

[0118] Regarding the necessary electrode 33 setting in the structure of the electret power generation mechanism 3, no specific description is made. The electret film 32 can be an electret film formed by materials such as polarized polytetrafluoroethylene (PTFE), polyvinylidene fluoride (PVDF), poly - L - lactic acid, and PMN - PT composite materials.

[0119] The elastic mechanism 6 can be a spring, an elastic sheet (such as an elastic metal sheet), an elastic pad (such as an elastic rubber pad), or other elastic components or mechanisms.

[0120] In a further design, one of the electret housing 31 and the electrode 33 of the electret power generation mechanism 3 can be fixed inside the housing 1, and the other is connected to the elastic mechanism 6.

[0121] By using the housing 1 of the electret self - generating power supply as a support and bracket, when the elastic mechanism 6 vibrates (oscillates) due to elasticity, it can effectively drive the electret film 32 and the electrode 33 in the electret housing 31 to produce a larger - amplitude relative movement, and more effectively generate electric energy.

[0122] It can be selected that the electret housing 31 of the electret power generation mechanism 3 is fixed on the outer housing 1, and the electrode 33 is connected to the elastic mechanism 6. This can prevent damage to the circuit when the outer housing 1 moves.

[0123] Furthermore, one end of the elastic mechanism 6 is connected to the electrode 33, and a counterweight is provided at the other end.

[0124] With the counterweight, the elastic mechanism 6 can vibrate with a large amplitude for a longer time. It can drive the relative movement of the electrode 33, and more continuously generate electric energy with a higher voltage and a more stable current.

[0125] The limit release mechanism can adopt a mechanical limit release mechanism. However, the mechanical limit release mechanism has disadvantages such as complex structure, component wear during operation, unstable performance, and high cost.

[0126] In this patent, furthermore, the limit release mechanism includes two magnetic components, at least one of which is a permanent magnet; in the limit release mechanism, the two magnetic components have a connection relationship that can be disconnected and reconnected; the first magnetic component 4 is connected to the button 2, and the second magnetic component 5 is connected to one of the electret housing 31 and the electrode 33 of the electret power generation mechanism 3 through the elastic mechanism 6. Among the electret housing 31 and the electrode 33, the one that is not connected to the second magnetic component 5 through the elastic mechanism is fixedly connected to the outer housing 1; thus, the second magnetic component 5 also functions as a counterweight for the elastic mechanism 6.

[0127] The limit release mechanism can also include a limit component for restricting the movement amplitude of the elastic mechanism 6, and the limit component is arranged on the movement track of the elastic mechanism 6. When the elastic mechanism 6 moves to the position of the limit component, it is blocked, and then the two magnetic components are separated.

[0128] The weight of the second magnetic component 5 is a magnetic component with a mass greater than 3 g and less than 20 g. Through experiments, this weight of the counterweight is easy to start vibrating and will not cause easy damage to the equipment due to being too heavy.

[0129] Because the second magnetic component 5 is only supported by the electret power generation mechanism 3 during operation, it is relatively fragile during work or transportation. In this patent, restricting it within a range greater than 3 g and less than 20 g can not only ensure the vibration amplitude and frequency but also ensure the reliability of the system.

[0130] Further, the second magnetic component 5 is a soft magnetic component, and the first magnetic component 4 is a permanent magnet.

[0131] This can prevent the second magnetic component 5 from causing unnecessary magnetic field changes during oscillation and hindering the oscillation action.

[0132] Furthermore, one end of the elastic mechanism 6 is fixedly connected to the housing 1, and the other end of the elastic mechanism 6 is bent and folded to form the second magnetic component 5. This not only ensures the counterweight performance but also realizes the integration.

[0133] Furthermore:

[0134] The stroke of the first magnetic component 4 connected to the button 2 exceeds the restricted stroke of the second magnetic component 5 restricted by the elastic mechanism 6.

[0135] Since the stroke of the first magnetic component 4 connected to the button 2 is greater than the restricted stroke of the second magnetic component 5 restricted by the elastic mechanism 6, after the button 2 is pressed to a certain extent, the two magnetic components are separated. The work of the limit release mechanism is completed.

[0136] Preferably, the button 2 is fixedly connected to the first magnetic component 4. Reducing the number of moving parts or the number of intermediate connecting parts can improve the stability of performance and reduce costs.

[0137] The way the elastic mechanism 6 restricts the stroke of the second magnetic component 5 can be through increasing the elastic force for restriction. During the stroke of the first magnetic component 4 connected to the button 2, there is a position where the magnetic force between the two magnetic components is less than the elastic force of the elastic mechanism 6. During the process of the button 2, the elastic force of the elastic mechanism 6 increases and exceeds the magnetic force, thereby restricting the stroke of the second magnetic component 5. Therefore, after the button 2 is pressed to a certain extent, the two magnetic components are separated.

[0138] During the working process, when the button 2 is pressed, since the stroke of the first magnetic component 4 connected to the button 2 is greater than the restricted stroke of the second magnetic component 5 restricted by the increased elastic force of the elastic mechanism 6, after the button 2 is pressed to a certain extent, the two magnetic components are separated.

[0139] When the button is pressed, when the two magnetic components move together with the button 2, the elastic force of the elastic mechanism 6 increases accordingly. When it increases to the extent that the elastic force is greater than the magnetic force, the stroke of the second magnetic component 5 is restricted and it no longer follows the movement, and then the two magnetic components are separated.

[0140] After separation, due to the rapid attenuation of the magnetic force (during the process of the two magnetic components separating from just being separated to further separation, there will be a rapid decline in the magnetic force), the elastic mechanism 6 rebounds quickly. And since the second magnetic component 5 serves as a counterweight, a continuous vibration or oscillation with a relatively large amplitude is generated. A continuous current with a relatively high voltage is generated.

[0141] In the above design, without adding limit components, only through the original components and through mechanical changes, the limit function is completed.

[0142] Moreover, due to the magnetic force between the two magnetic components, after the button 2 is released, it is likely to automatically snap back together to complete the reset.

[0143] The above design adopts the simplest structure to complete the design, and has the advantages of simple structure, low cost, reliable performance, etc.

[0144] A buffer layer is provided between the two magnetic components, and the buffer layer is fixed on one of the magnetic components. It is used to reduce or avoid the collision damage when the magnetic components are reset. And it has a noise reduction effect. It reduces the noise that may be generated during operation. Further preferably, the buffer layer is a rubber sleeve that is sleeved on one of the magnetic components. It is easy to install and fix.

[0145] Furthermore, it can be selected that the electrode 33 of the electret power generation mechanism 3 is fixedly connected inside the housing 1, and the electret housing 31 is connected to the elastic mechanism 6.

[0146] With this design, the electret housing 31 and the components inside the electret housing 31 that are linked with the electret housing 31 can be used as a counterweight together. The elastic mechanism 6 can vibrate continuously with a larger amplitude for a longer time. It can generate electrical energy with a higher voltage and a more stable current more continuously. And it reduces the additional counterweight or reduces the weight of the additional counterweight.

[0147] As long as the electret self-power supply generates a current within 1 second, it is sufficient to complete the remote control operation. In order to reduce the requirements for the circuit part, reduce the production cost and increase the reliability. The reliable current output is preferably greater than 0.1 milliseconds. A capacitor can be used to store electricity, and after reaching a set voltage, it is triggered to work, and is used to emit signals with a larger current and voltage in a shorter time.

[0148] Adopting the structure of the electret power generation mechanism 3 has the characteristics of low cost, stable material supply, and easy mass production. When used in the structure of this patent, it can provide sufficient accommodation space for the electret power generation mechanism 3, and the electret power generation mechanism 3 can generate an appropriate current of an appropriate magnitude.

[0149] Refer to Figure 4 , further, at least one electret film 32 and two electrodes 33 are provided in the electret housing 31 of the electret power generation mechanism 3, one is the upper electrode and the other is the lower electrode; the electret film 32 is arranged between the two electrodes 33; the lower electrode is fixed inside the electret housing 31; the lower electrode is movably connected to the electret film 32 through an elastic material layer; the electret film 32 is movably connected to the upper electrode through an elastic material layer.

[0150] This design further enables relative movement among the upper electrode, the lower electrode, and the electret film 32. As a result, induced charges can be generated on both the upper electrode and the lower electrode. Connecting the upper electrode and the lower electrode as the two poles of a power source to a circuit can obtain higher voltage and current. Specific Embodiment 1:

[0152] Referring to Figure 1 , the movable button 2 assembled on the housing 1 is a lever-type button; the lever-type button includes a pressing end for pressing, a rotating shaft, and a driven end that moves accordingly; the driven end of the button 2 is directly or indirectly connected to the elastic mechanism 6 through a limit release mechanism. Using a lever-type button facilitates adjusting the force required when pressing the button 2 by adjusting the length ratio of the pressing end and the driven end to the rotating shaft, thereby obtaining a good operating feel.

[0153] It can be adopted that the first magnetic component 4 is fixed at the bottom of the driven end. The bottom of the driven end can refer to the part of the lever-type button hidden by the housing 1. When the housing 1 is placed upright and the lever-type button faces upward, the bottom of the driven end refers to the position below the driven end.

[0154] The following structure can also be adopted. A connecting line 8 is connected to the driven end, and the first magnetic component 4 is connected through the connecting line 8. This allows for a more flexible movement trajectory of the first magnetic component 4 and a more flexible placement position of the electret power generation mechanism 3.

[0155] Specifically, it can be:

[0156] The housing 1 is placed vertically, and the driven end is located at the upper part; the electret power generation mechanism 3 is fixed on the housing 1 and is located below the driven end; in the electret power generation mechanism 3, the electrode 33 connected to the elastic mechanism 6 faces upward; the second magnetic component 5 connected to the elastic mechanism 6 is located above the outside of the electret housing 31;

[0157] A connecting line 8 is connected to the driven end, and the first magnetic component 4 is connected through the connecting line 8.

[0158] Through the above design, the thickness or height of the electret power generation mechanism 3 and the length of the elastic mechanism 6 are no longer affected by the thickness of the housing 1. The increase in the length of the elastic mechanism 6 can effectively increase the vibration amplitude and vibration duration. Therefore, the above design allows for the manufacture of an ultra-thin electret self-power generation power source and can ensure good power output.

[0159] Referring to Figure 2 , at least one guiding through hole 7 is further provided in the housing 1. The connecting line 8 passes through the guiding through hole 7 for guiding and then is connected to the first magnetic component 4. The guiding through hole 7 preferably has a metal layer on its inner wall to reduce wear.

[0160] Preferably, a guiding through hole 7 is provided at a position close to the driven end; another guiding through hole 7 is provided at a position close to one end of the second magnetic component 5; both guiding through holes 7 are provided at the bottom of the housing 1 and the height is not higher than 5 mm from the bottom.

[0161] One is to increase the firmness by reducing the distance. The other is that the bottom of the housing 1 can play a certain supporting or blocking role for the first magnetic component 4 to prevent the first magnetic component 4 from shaking too much. Specific Embodiment Two:

[0163] Refer to Figure 3 The movable button 2 assembled on the housing 1 is a push-button 2; a button hole is provided on the housing 1, and the push-button 2 is installed on the housing 1 through the button hole; the push-button 2 includes a pressing end for pressing and a driven end hidden inside the housing 1 and following the movement; the driven end of the button 2 is directly or indirectly connected to the elastic mechanism 6 through a limit release mechanism.

[0164] The adoption of the push-button 2 has the advantages of simple structure, stable performance, easy miniaturization, etc.

[0165] It can be adopted that the first magnetic component 4 is fixed at the bottom of the driven end. When the housing 1 is placed upward and the push-button 2 is upward, the bottom of the driven end refers to the position below the driven end.

[0166] The following structure can also be adopted. A connecting line 8 is connected to the driven end, and the first magnetic component 4 is connected through the connecting line 8. This can allow the first magnetic component 4 to have a more flexible movement track and allow the electret power generation mechanism 3 to have a more flexible placement position.

[0167] Specifically, it can be:

[0168] The limit release mechanism includes two magnetic components, at least one of which is a permanent magnet; in the limit release mechanism, the two magnetic components play a connection relationship that can be disconnected and reconnected; when the push-button 2 is placed upward, the first magnetic component 4 is arranged below the driven end; the electret power generation mechanism 3 is directly or indirectly fixed inside the housing 1 and is located above the first magnetic component 4; in the electret power generation mechanism 3, the electrode 33 connected to the elastic mechanism 6 is placed downward; the second magnetic component 5 connected to the elastic mechanism 6 is located below the outside of the electret housing 31.

[0169] During the working process, when the button 2 is pressed, since the travel of the first magnetic component 4 connected to the button 2 is greater than the limited travel of the second magnetic component 5 restricted by the elastic force of the elastic mechanism 6, after the button 2 reaches a certain amplitude, the two magnetic components are separated.

[0170] When the button is pressed, as the two magnetic components move together with the button 2, the elastic force of the elastic mechanism 6 increases accordingly. When the elastic force increases to a level greater than the magnetic force, the stroke of the second magnetic component 5 is restricted and it no longer follows the movement, and then the two magnetic components separate. The elastic mechanism 6 rebounds quickly, and since the second magnetic component 5 serves as a counterweight, a continuous vibration or oscillation with a relatively large amplitude is generated. A continuous current with a relatively high voltage is generated.

[0171] Also, due to the existence of the magnetic force between the two magnetic components, after the button 2 is released, it is likely to automatically snap back together to complete the reset. The above design uses the simplest structure to complete the design, and has the advantages of simple structure, low cost, reliable performance, etc.

[0172] When the push-button 2 is placed upward, a bent portion protruding to one side is provided at the lower part of the push-button 2, and the first magnetic component 4 is fixed above the bent portion.

[0173] The electret power generation mechanism 3 is directly or indirectly fixed in the housing 1 and is located above the first magnetic component 4; in the electret power generation mechanism 3, the second magnetic component 5 connected to the elastic mechanism 6 is located below the outside of the electret housing 31 and at least part of the second magnetic component 5 extends above the bent portion, that is, above the first magnetic component 4.

[0174] This design makes the placement position of the electret power generation mechanism 3 simpler. It allows the electret power generation mechanism 3 to share part of the width space with the push-button 2. It allows for a more compact design. And because the first magnetic component 4 is supported by the bent portion. So it is convenient to install and more firm.

[0175] Or, there is another design.

[0176] A cavity with an opening to one side is provided at the lower part of the push-button 2, and the first magnetic component 4 is fixed above the bottom of the cavity; the electret power generation mechanism 3 is directly or indirectly fixed in the housing 1 and is located above the first magnetic component 4; in the electret power generation mechanism 3, the second magnetic component 5 connected to the elastic mechanism 6 is located below the outside of the electret housing 31 and at least part of the second magnetic component 5 extends into the cavity and is located above the first magnetic component 4.

[0177] This design not only satisfies the advantages of the previous design, making the placement position of the electret power generation mechanism 3 simpler, allowing the electret power generation mechanism 3 to share part of the width space with the push-button 2, and firmly supporting the first magnetic component 4. Moreover, because it adopts the opening cavity structure of the push-button 2, there are no additional components, and due to the support of the cavity wall, the firmness of the fixed part of the first magnetic component 4 is greatly enhanced. It is easy to use the cavity wall to perform three-dimensional fixation on multiple surfaces of the first magnetic component 4.

[0178] This enhancement is of great positive significance in the structure that relies on the pulling force of the first magnetic component 4 to release energy.

[0179] It not only reduces the production difficulty, but also reduces the cost and increases the reliability of the product.

[0180] In this patent, the rectifying, voltage-stabilizing, energy-storing circuits, as well as the wireless, infrared or other signal transmitting circuits that are matched with it are not described in detail in this patent.

[0181] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. Electret self - generating wireless signal transmitter, comprising a wireless signal transmitter and a power source, characterized in that: The power source uses an electret self - generating power source; The electret self - generating power source includes a housing, and further includes a movable key assembled on the housing; It further includes an electret power generation mechanism, the electret power generation mechanism includes an electret housing, an electret film is provided in the electret housing, and an electrode that moves relative to the electret film; It further includes an elastic mechanism, and the elastic mechanism drives the electret power generation mechanism; One of the electret housing and the electrode of the electret power generation mechanism is connected to the elastic mechanism; The key is directly or indirectly connected to the elastic mechanism through a limit release mechanism; The limit release mechanism is a mechanism that disconnects the connection relationship after moving to a limited position and reconnects after resetting.

2. The electret self - generating wireless signal transmitter according to claim 1, characterized in that: One of the electret housing and the electrode of the electret power generation mechanism is fixed inside the housing, and the other is connected to the elastic mechanism.

3. The electret self - generating wireless signal transmitter according to claim 1, characterized in that: One end of the elastic mechanism is connected to the electrode, and a counterweight is provided at the other end.

4. The electret self - generating wireless signal transmitter according to claim 1, characterized in that: The limit release mechanism includes two magnetic components, at least one of which is a permanent magnet; in the limit release mechanism, the two magnetic components play a connection relationship that can be disconnected and reconnected; the first magnetic component is connected to the key, and the second magnetic component is connected to one of the electret housing and the electrode of the electret power generation mechanism through the elastic mechanism.

5. The electret self - generating wireless signal transmitter according to claim 4, characterized in that: Among the electret housing and the electrode, the one that is not connected to the second magnetic component through the elastic mechanism is fixedly connected to the housing; so that the second magnetic component also plays a counterweight role on the elastic mechanism.

6. The electret self - generating wireless signal transmitter according to claim 1, characterized in that: The weight of the second magnetic component uses a magnetic component with a mass greater than 3g and less than 20g.

7. The electret self - generating wireless signal transmitter according to claim 1, characterized in that: The second magnetic component uses a soft magnetic component, and the first magnetic component uses a permanent magnet; One end of the elastic mechanism is fixedly connected to the housing, and the other end of the elastic mechanism is bent and folded to form the second magnetic component.

8. The electret self - generating wireless signal transmitter according to claim 1, characterized in that: The electrode of the electret power generation mechanism is fixedly connected inside the housing, and the electret housing is connected to the elastic mechanism.

9. The electret self - generating wireless signal transmitter according to claim 1, characterized in that: At least one electret film and two electrodes are provided in the electret housing of the electret power generation mechanism, one is an upper electrode and the other is a lower electrode; the electret film is arranged between the two electrodes; the lower electrode is fixed inside the electret housing; the lower electrode is movably connected to the electret film through an elastic material layer; the electret film is movably connected to the upper electrode through an elastic material layer.

10. The electret self-powered wireless signal transmitter according to any one of claims 1-9, characterized in that: The stroke of the first magnetic component connected to the key exceeds the limited stroke of the second magnetic component restricted by the elastic mechanism; The key is fixedly connected to the first magnetic component; A buffer layer is provided between the two magnetic components, and the buffer layer is fixed on one of the magnetic components.

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