CN214429527U - Self-generating wireless transmitting device - Google Patents
Self-generating wireless transmitting device Download PDFInfo
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- CN214429527U CN214429527U CN202120640825.5U CN202120640825U CN214429527U CN 214429527 U CN214429527 U CN 214429527U CN 202120640825 U CN202120640825 U CN 202120640825U CN 214429527 U CN214429527 U CN 214429527U
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Abstract
The utility model relates to a from the technical field of electricity generation, especially relate to a from wireless emitter of electricity generation, power generation facility, energy memory, voltage conversion equipment and rear end module in the device connect gradually, wherein, the polarity that the power generation facility generated electricity in the motion of first direction is opposite with the polarity that generates electricity in the motion of second direction; and the polarity identification device outputs a pulse signal to an enabling pin of the voltage conversion device when the power generation device moves in the second direction, and triggers the voltage conversion device to switch to the second working mode. The utility model discloses to press and the electric energy merging utilization that the bounce produced, make the electric energy storage that power generation facility produced when pressing in electric capacity, only just trigger rear end module work when power generation facility resets, greatly reduced similar technical scheme's the circuit design degree of difficulty, practiced thrift manufacturing cost.
Description
Technical Field
The utility model relates to a from the technical field of generating electricity, especially, relate to a from electricity generation wireless transmitting device.
Background
The power generation device, particularly the pulse type kinetic energy power generation device, is a device for converting mechanical energy of action into pulse electric energy, the system does not need other energy sources to be input, and the power generation device is the only electric energy source of the system. The device is characterized in that the device is a self-generating radio switch, an operator presses and releases the switch, an internal pulse type generator generates electric energy twice, and the device drives an internal circuit module to work by using the energy, so that the transmission of a radio signal is finally realized.
In the use of the existing self-generating switch, the generator generally acts once respectively when being pressed down and reset, and the energy of one pulse is generated respectively. In general, when the conventional self-generating switch is used, a wireless message is sent once when the switch is pressed down, and a message is sent once or no message is sent when the switch is rebounded. If the energy of both the push and the rebound is 150uJ, the length or power of the message that can be sent is limited by this 150uJ energy value. Therefore, if it is desired to be able to send more power or send longer messages, a larger energy generator is required, which results in greater size or cost.
Besides using a larger power generator, there is also a method to combine the pressing and rebounding energy to supply power to the back-end circuit, so that a larger power or longer wireless message can be sent. In this way, since there is always a certain time interval between the pressing and the rebounding of the user, if the circuit starts consuming power when the user presses, the power is not consumed until the rebounding, and therefore, a special circuit is needed to achieve the following purposes: when the circuit is pressed down, although electricity exists in the circuit, the main power consumption part cannot work or is in a mode with extremely low power consumption, and when the circuit waits for rebounding, the circuit is switched to a normal mode, and then a message is sent.
In order to solve this problem, patent CN109507470A discloses a self-powered method and device based on polarity detection, which can combine the energy generated when the self-powered electronic device requiring reset operates with the energy generated when the electronic device is reset. The core thought is as follows: when the generator acts for the first time, energy is temporarily stored, and part of electric energy flows into the processing device and is used for maintaining the processing device to work in a mode 1; when the generator is reset, the polarity detection device outputs a detection signal to the processing device, so that the processing device is triggered to switch to the working mode 2. However, although this technology can solve the problem of combining and utilizing energy twice due to insufficient energy in a single operation, the processing device needs to implement low power consumption functions in the operating mode 1, and these low power consumption functions are low power consumption, but some single-chip microcomputers may have high power consumption even in the low power consumption mode, and when the generator bounces, the electric energy that is pushed down is consumed.
For another example, patent CN104904094 and CN106787592A both disclose a power control method and apparatus for a self-powered device requiring reset, which can combine and utilize the energy generated during operation and the energy generated during reset of the self-powered electronic device requiring reset. The core thought is as follows: when the generator acts for the first time, energy is temporarily stored, and the energy storage device is disconnected from a load at the moment through a switch; when the generator is reset, the switch is switched on, and then two energy generated in the first action and the reset respectively are merged and sent to the load. However, although this technique can solve the problem of using energy twice in combination with insufficient energy in a single operation, it requires a switch to be introduced into the circuit, which increases the difficulty of the circuit.
In view of the above, overcoming the drawbacks of the prior art is an urgent problem in the art.
SUMMERY OF THE UTILITY MODEL
One of the purposes of the utility model is to overcome the defect that the self-generating device circuit is complicated and the energy consumption is too much under the low-power mode among the prior art.
The utility model discloses a realize like this:
the utility model provides a from wireless transmitting device of electricity generation, including power generation facility, energy memory, polarity recognition device, voltage conversion equipment and rear end module, wherein, power generation facility, energy memory, voltage conversion equipment and rear end module connect gradually, and are specific:
the polarity of the electricity generated by the electricity generating device moving in the first direction is opposite to that of the electricity generated by the electricity generating device moving in the second direction;
the energy storage device stores intermittent electric energy generated by the power generation device under at least one movement;
the voltage conversion device is in a first working mode when the power generation device moves in a first direction;
one end of the polarity identification device is connected with an output port of the power generation device, and the other end of the polarity identification device is connected with an enabling pin of the voltage conversion device; when the power generation device moves in the second direction, the polarity identification device outputs a pulse signal to an enabling pin of the voltage conversion device to trigger the voltage conversion device to switch to the second working mode.
Further, the voltage conversion device does not output electric energy in the first working mode, the rear-end module does not work, the voltage conversion device outputs electric energy to the rear-end module in the second working mode, and the rear-end module works.
Further, the pulse signal is a high-level pulse, and the width of the pulse signal is 1-100 mS.
Further, the polarity identification device comprises a diode D6 and a capacitor C3;
one end of the diode D6 is connected with an output port of the power generation device, and the other end of the diode D6 is connected with an enable pin of the voltage conversion device;
one end of the capacitor C3 is connected in parallel between the diode D6 and the enable pin of the voltage conversion device, and the other end of the capacitor C3 is grounded.
Furthermore, the power generation device is a magnetoelectric pulse power generation device with a reset structure and comprises a power generation body consisting of a soft magnet, a permanent magnet and a coil and a reset device consisting of a reset spring.
Further, the energy storage device also comprises a rectifying device, and the rectifying device is positioned between the power generation device and the energy storage device.
Further the energy storage device comprises:
one or more of a capacitor, an inductor, an energy storage chemical material, and an energy storage mechanism.
Further, when the energy storage device is specifically a capacitor C1, one end of the capacitor C1 is connected to the first output end of the rectifying device and the first input end of the voltage converting device, and the other end of the capacitor C1 is connected to the second output end of the rectifying device and the second input end of the voltage converting device.
Further, the voltage conversion device includes a controller, a switching tube K1, a diode D5, an inductor L1, a capacitor C2, and an auxiliary power supply, specifically:
a first input end and a second input end of the auxiliary power supply are respectively connected with a first output end and a second output end of the energy storage device, and an output end of the auxiliary power supply is connected with an input end of the controller;
the first output end of the controller is connected with one end of a switch tube K1, the other end of the switch tube K1 is connected with an inductor L1 and then connected with the first end of a capacitor C2, and the second output end of the controller is connected with the second end of the capacitor C2;
the anode of the diode D5 is connected in parallel between the second output terminal of the controller and the second terminal of the capacitor C2, and the cathode of the diode D5 is connected in parallel between the switch tube K1 and the inductor L1;
the first end and the second end of the capacitor C2 are further connected with the first input end and the second input end of the rear-end module respectively, and the second end of the capacitor C2 is further connected with the ground.
Further, the rear-end module includes a main control chip and a wireless transmitting circuit, and the rear-end module transmits a wireless message when the voltage converting device is in the second working mode.
Compared with the prior art, the beneficial effects of the utility model reside in that: the electric energy generated by pressing and bouncing is combined and utilized, so that the electric energy generated by the power generation device when being pressed is stored in the capacitor, and the rear-end module is triggered to work only when the power generation device is reset, and the utility model borrows the characteristic that the voltage conversion device per se generally has two modes (a shutdown mode and a normal mode), does not need to additionally introduce a switch, and does not need the rear-end module (processor) to realize a low-power mode, and through the shutdown mode of the voltage conversion device per se, the power consumption (leakage current) of the voltage conversion device per se is very low in the shutdown mode and is generally lower than the low-power mode of a single chip, thus the consumption of the electric energy can be better avoided, and the utility model has the advantages of simple structure, simplified circuit and greatly reduced the circuit design difficulty of similar technical schemes under the condition of achieving the technical effects, the production cost is saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a block diagram of a self-generating wireless transmitter according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an electric potential effect generated by the power generation apparatus provided in the embodiment of the present invention;
fig. 3 is a schematic structural diagram of a self-generating wireless transmitter according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a magnetoelectric pulse power generation device with a reset structure according to an embodiment of the present invention;
fig. 5 is a schematic view of the pin polarity and external force action of the power generation device according to the embodiment of the present invention;
fig. 6 is a schematic view of an operating state of the piezoelectric ceramic power generation device according to an embodiment of the present invention;
fig. 7 is a schematic circuit diagram illustrating a refinement circuit of a self-generating wireless transmitter provided in an embodiment of the present invention.
Detailed Description
In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "upper", "lower", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention but do not require that the present invention must be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, the embodiment of the utility model provides a from wireless transmitting device of electricity generation, including power generation facility, energy memory, polarity recognition device, voltage conversion equipment and rear end module, wherein, power generation facility, energy memory, voltage conversion equipment and rear end module connect gradually, and are specific:
the motion of the power generation device is reciprocating motion, and the polarity of power generation generated by the motion in the first direction is opposite to the polarity of power generation generated by the motion in the second direction. Referring to fig. 2, the electric potential generated by the operation of the power generation device, the reciprocating motion of the power generation device generates one energy as shown in fig. 2 at a time, and the energy is characterized by short duration, high peak value and opposite polarity of the energy in the two motions. Vp is the peak voltage value of the two operations, Tw is the energy duration generated by the single operation.
The energy storage device stores intermittent electric energy generated by the power generation device under at least one motion (the one motion refers to one reciprocating motion and comprises two reciprocating motions).
The voltage conversion device is in a first mode of operation when the power generation device is moved in a first direction (e.g., depression of the generator).
One end of the polarity identification device is connected with the output port of the power generation device, and the other end of the polarity identification device is connected with an enabling pin of the voltage conversion device; when the power generation device moves in a second direction (such as the bounce of the generator), the polarity identification device outputs a pulse signal to an enable pin of the voltage conversion device to trigger the voltage conversion device to switch to a second working mode.
In this preferred embodiment, the voltage conversion device is in a low power consumption mode (or a shutdown mode) in the first operating mode, and does not output electric energy to the back-end module, so that the back-end module does not operate, and only when the voltage conversion device is in the second operating mode, the voltage conversion device outputs electric energy to the back-end module, so that the back-end module operates. Specifically, when the enable pin of the voltage conversion device is at a low level, the voltage conversion device is in an "off" mode or a low power consumption mode (i.e., a first operating mode), and when the enable pin of the voltage conversion device is at a high level, the voltage conversion device is in a normal mode (i.e., a second operating mode).
That is, in the preferred embodiment, the pulse signal for switching the voltage conversion device to the second operation mode is a high level pulse (with a width of 1-100mS), that is, the enable pin of the voltage conversion device in this embodiment triggers the voltage conversion device to switch to the second operation mode only when receiving the high level pulse.
As shown in fig. 3, in the preferred embodiment, a rectifying device is further included, and the rectifying device is located between the power generation device and the energy storage device and is used for rectifying the electric energy generated by the power generation device and then storing the electric energy in the energy storage device.
In the preferred embodiment, the energy storage device comprises one or more of a capacitor, an inductor, an energy storage chemical material, and an energy storage mechanism. When the energy storage device is specifically a capacitor C1, one end of the capacitor C1 is connected to the first output end of the rectifying device and the first input end of the voltage converting device, and the other end of the capacitor C1 is connected to the second output end of the rectifying device and the second input end of the voltage converting device.
In the preferred embodiment, after the electric energy of the power generation device is stored through rectification, the voltage range of the energy storage capacitor C1 is generally 1-20V, and the voltage converter is a step-down voltage converter, and the output is 1V-3V. Of course, the value of the energy storage capacitor C1 may also be adjusted so that the voltage range of the energy storage capacitor C1 is 0-3V, and the corresponding voltage converter is a boost converter.
In the preferred embodiment, the power generation device is embodied as a magnetoelectric pulse power generation device with a reset structure, as shown in fig. 4. It comprises a power generation body consisting of a soft magnet, a permanent magnet and a coil and a reset device consisting of a reset spring. The power generation device generates energy through pressing and resetting under the action of external force, and a corresponding energy schematic diagram is shown in fig. 2. Pin 1 in fig. 5: negative electrode and 2-pin: the positive electrodes are respectively the concrete expressions of the first output end and the second output end of the power generation device. The embodiment can realize continuous use of the energy of the pressing action and the resetting action to complete a task with high energy consumption, and at the moment, the two actions are respectively formed by the pressing external force action and the resetting action from the resetting spring.
In another embodiment, the power generation device may also be a piezoelectric ceramic plate, as shown in fig. 6, which generates pulse power when being pressed and reset respectively, and the corresponding power diagram is also shown in fig. 2.
In the preferred embodiment, a specific circuit structure design scheme is further provided, as shown in fig. 7, the rectifying device is a rectifying bridge composed of diodes D1, D2, D3 and D4, and the polarity identifying device includes a diode D6 and a capacitor C3; one end of the diode D6 is connected with the first output end of the power generation device, and the other end of the diode D6 is connected with an enabling pin of the voltage conversion device; one end of the capacitor C3 is connected in parallel between the diode D6 and the enable pin of the voltage conversion device, and the other end of the capacitor C3 is grounded.
It should be noted that, in the embodiment, when the voltage conversion device corresponds to the first operation mode of the voltage conversion device, the positive pulse is output by the first output port of the power generation device when being pressed, and the pulse is blocked by D6 in the polarity identification device and cannot pass through, only when the first output port of the power generation device outputs the negative pulse when being reset, the pulse can charge C3 through D6, and then output a high-level pulse to the enable pin of the controller, thereby activating the controller to enter the second operation mode. In other embodiments, the above process may also be performed such that the first output port of the power generation device outputs a negative pulse when being pressed, and outputs a positive pulse only when being reset, so as to pass through D6, thereby activating the controller to enter the second operation mode. In a word, under this embodiment technical scheme enlightens, need not creative work and just can wait the scheme that the design was come out, all belong to the utility model discloses a protection scope, it is not repeated here to differ one.
In another embodiment, the polarity identification device may also be implemented by a unidirectional conducting circuit formed by a triode or a CMOS transistor, and since the principle is the same, the pulse when pressing is blocked and the pulse when resetting is conducted, the detailed process is not described herein again.
As shown in fig. 7, the voltage converter in the preferred embodiment includes a controller, a switching tube K1, a diode D5, an inductor L1, a capacitor C2, and an auxiliary power supply, specifically: the enabling pin of the voltage conversion device is located at the controller, namely the output end of the polarity identification device is connected with the controller through the enabling pin. In addition, a first input end and a second input end of the auxiliary power supply are respectively connected with a first output end and a second output end of the energy storage device, and an output end of the auxiliary power supply is connected with an input end of the controller; the first output end of the controller is connected with one end of a switch tube K1, the other end of the switch tube K1 is connected with an inductor L1 and then connected with the first end of a capacitor C2, and the second output end of the controller is connected with the second end of the capacitor C2; the anode of the diode D5 is connected in parallel between the second output terminal of the controller and the second terminal of the capacitor C2, and the cathode of the diode D5 is connected in parallel between the switch tube K1 and the inductor L1; the first end and the second end of the capacitor C2 are further connected with the first input end and the second input end of the rear-end module respectively, and the second end of the capacitor C2 is further connected with the ground.
In this preferred embodiment, the back-end module includes a main control chip and a wireless transmitting circuit, and the back-end module sends a wireless message when the voltage converting device is in the second operating mode.
Specifically, the specific work flow when the circuit design shown in fig. 7 is adopted in this embodiment is as follows:
when the generator is pressed, the electric energy is rectified by D1 and D3 and stored in the energy storage device capacitor C1. At this time, the controller of the voltage conversion device is in the first working mode, and the output of the controller causes the switching tube K1 to be closed. At this time, the whole voltage conversion device is in a low power consumption state, and the energy consumption in the energy storage device capacitor C1 is little.
When the power generation device is reset, it generates a negative pulse, which charges the C3 through D6, and outputs a high level pulse to the enable pin of the controller, thereby activating the controller to enter the second operating mode. At this time, the controller is activated to a normal mode, and an output Pulse-Width Modulation (PWM) waveform controls the periodic opening and closing of the K1. When K1 is opened, the electric energy stored in C1 is output to inductor L1 through K1, and then is further output to C2 for filtering, and is supplied to the main control chip and the wireless transmitting circuit for transmitting signals. When K1 is turned off, energy of C1 cannot be output continuously, but L1 continues to output current to C2 and the back-end module after freewheeling is achieved through D5 because current cannot change suddenly. Finally, in the state that the controller periodically switches on and off the K1, the voltage of the C2 is at a stable value to be supplied to the back-end module for the configuration of the main control chip and the wireless transmission circuit and the transmission of the wireless message. The auxiliary power supply is used for supplying power to the controller of the voltage conversion device.
Through the above embodiment, the utility model can combine and utilize the electric energy generated by pressing and bouncing, so that the electric energy generated by the power generation device when being pressed is stored in the capacitor, and the rear module is triggered to work only when the power generation device is reset, and the utility model borrows the characteristics that the voltage conversion device per se generally has two modes (a shutdown mode and a normal mode), does not need to additionally introduce a switch, and does not need the rear module to realize the low power consumption mode, and through the shutdown mode of the voltage conversion device of the utility model, the power consumption (leakage current) of the voltage conversion device per se is very low in the shutdown mode, and is generally lower than the low power consumption mode of a single chip microcomputer, thus the consumption of the electric energy can be better avoided, and the utility model has simple structure and simplified circuit under the condition of achieving the technical effects, thereby greatly reducing the circuit design difficulty of similar technical schemes, the production cost is saved.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a from wireless transmitting device of electricity generation, its characterized in that, includes power generation facility, energy memory, polarity recognition device, voltage conversion equipment and rear end module, and wherein power generation facility, energy memory, voltage conversion equipment and rear end module connect gradually, and are specific:
the polarity of the electricity generated by the electricity generating device moving in the first direction is opposite to that of the electricity generated by the electricity generating device moving in the second direction;
the energy storage device stores intermittent electric energy generated by the power generation device under at least one movement;
the voltage conversion device is in a first working mode when the power generation device moves in a first direction;
one end of the polarity identification device is connected with an output port of the power generation device, and the other end of the polarity identification device is connected with an enabling pin of the voltage conversion device; when the power generation device moves in the second direction, the polarity identification device outputs a pulse signal to an enabling pin of the voltage conversion device to trigger the voltage conversion device to switch to the second working mode.
2. The self-generating wireless transmitting device according to claim 1, wherein the voltage converting device does not output power in the first operating mode, and the back-end module does not operate, and the voltage converting device outputs power to the back-end module in the second operating mode, and the back-end module operates.
3. The self-generating wireless transmitting device according to claim 1, wherein the pulse signal is a high level pulse, and the pulse signal width is 1-100 mS.
4. The self-generating wireless transmission device according to claim 1, wherein the polarity identification device comprises a diode D6 and a capacitor C3;
one end of the diode D6 is connected with an output port of the power generation device, and the other end of the diode D6 is connected with an enable pin of the voltage conversion device;
one end of the capacitor C3 is connected in parallel between the diode D6 and the enable pin of the voltage conversion device, and the other end of the capacitor C3 is grounded.
5. The self-generating wireless transmitting device according to claim 1, wherein the generating device is a magnetoelectric pulse generating device with a reset structure, and comprises a generating body composed of a soft magnet, a permanent magnet and a coil, and a reset device composed of a reset spring.
6. The self-generating wireless transmitter according to claim 1, further comprising a rectifying device, the rectifying device being located between the power generating device and the energy storage device.
7. The self-generating wireless transmitter according to claim 6, wherein the energy storage device comprises:
one or more of a capacitor, an inductor, an energy storage chemical material, and an energy storage mechanism.
8. The self-generating wireless transmitting device according to claim 7, wherein when the energy storage device is specifically a capacitor C1, one end of the capacitor C1 is connected to the first output terminal of the rectifying device and the first input terminal of the voltage converting device, and the other end of the capacitor C1 is connected to the second output terminal of the rectifying device and the second input terminal of the voltage converting device.
9. The self-generating wireless transmitting device according to any one of claims 1-8, wherein the voltage converting device comprises a controller, a switch tube K1, a diode D5, an inductor L1, a capacitor C2, and an auxiliary power supply, specifically:
a first input end and a second input end of the auxiliary power supply are respectively connected with a first output end and a second output end of the energy storage device, and an output end of the auxiliary power supply is connected with an input end of the controller;
the first output end of the controller is connected with one end of a switch tube K1, the other end of the switch tube K1 is connected with an inductor L1 and then connected with the first end of a capacitor C2, and the second output end of the controller is connected with the second end of the capacitor C2;
the anode of the diode D5 is connected in parallel between the second output terminal of the controller and the second terminal of the capacitor C2, and the cathode of the diode D5 is connected in parallel between the switch tube K1 and the inductor L1;
the first end and the second end of the capacitor C2 are further connected with the first input end and the second input end of the rear-end module respectively, and the second end of the capacitor C2 is further connected with the ground.
10. The self-generating wireless transmitting device according to any one of claims 1 to 8, wherein the back-end module comprises a main control chip and a wireless transmitting circuit, and the back-end module transmits a wireless message when the voltage converting device is in the second operating mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202120640825.5U CN214429527U (en) | 2021-03-30 | 2021-03-30 | Self-generating wireless transmitting device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120640825.5U CN214429527U (en) | 2021-03-30 | 2021-03-30 | Self-generating wireless transmitting device |
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| CN214429527U true CN214429527U (en) | 2021-10-19 |
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