CN220985640U - Novel energy storage power supply key switch circuit - Google Patents
Novel energy storage power supply key switch circuit Download PDFInfo
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- CN220985640U CN220985640U CN202322167970.8U CN202322167970U CN220985640U CN 220985640 U CN220985640 U CN 220985640U CN 202322167970 U CN202322167970 U CN 202322167970U CN 220985640 U CN220985640 U CN 220985640U
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- 239000002699 waste material Substances 0.000 abstract description 6
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Abstract
The utility model discloses a novel energy storage power supply key switch circuit, which comprises: the system comprises a key control module, a voltage reduction module and an MCU module; the key control module comprises: the power supply unit, the first control unit, the resistor R3, the second control unit, the charging capacitor C1, the switch SW1 and the diode D3; the voltage reduction module is electrically connected with the first control unit, and after the first control unit is conducted, the voltage flowing from the first control unit to the voltage reduction module is reduced and then is transmitted to the MCU module; the MCU module is used for driving the second control unit to be conducted after the time of detecting the level passing through the A pole of the diode D3 reaches the preset time, and sending a high level to the first control unit to enable the first control unit to be continuously conducted. The utility model can effectively prevent the problem of starting up caused by the false touch of the switch, avoid the waste of energy sources, avoid damaging the battery and effectively prolong the service life of the battery.
Description
Technical Field
The utility model relates to the field of energy storage power supplies, in particular to a novel energy storage power supply key switch circuit.
Background
At present, most of the traditional energy storage power supply on the market is in a short press state, and no physical key actuation blocking function for preventing is provided, when the key is touched by mistake in a short time or the key actuation blocking is carried out, the energy storage power supply battery is always in an outward discharge state, and energy waste and battery loss are caused. In addition, the existing energy storage power supply adopts short pressing, so that the problem that the power supply is started up due to false touch exists, the energy waste is caused, the battery is damaged, and the service life of the battery is shortened.
Accordingly, the prior art has drawbacks and needs improvement.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art, provides a novel energy storage power supply key switch circuit, and solves the problems that in the prior art, an energy storage power supply switch is started by mistake, and finally energy waste is caused, and the service life of the energy storage power supply switch is shortened.
The technical scheme of the utility model is as follows: a novel energy storage power button switch circuit, comprising: the device comprises a key control module, a voltage reducing module electrically connected with the key control module and an MCU module electrically connected with the voltage reducing module; the key control module comprises: the power supply unit, the first control unit, the resistor R3, the second control unit, the charging capacitor C1, the switch SW1 and the diode D3, wherein the first control unit, the resistor R3 and the second control unit are electrically connected with the power supply unit, the switch SW1 is electrically connected with the pin 2 of the charging capacitor C1, the diode D3 is electrically connected with the pin 2 of the switch SW1, and the A pole of the diode D3 is electrically connected with the MCU; the pin 1 of the resistor R3 is electrically connected with the first control unit, and the pin 2 of the resistor R3 is connected to the common end of the pin 1 of the charging capacitor C1 and the second control unit; one end of the second control unit is connected to the ground wire, and the pin 1 end of the switch SW1 is connected to the ground wire; the voltage reduction module is electrically connected with the first control unit, and after the first control unit is conducted, the voltage flowing from the first control unit to the voltage reduction module is reduced and then is transmitted to the MCU module; the MCU module is used for driving the second control unit to be conducted after the time of detecting the level passing through the A pole of the diode D3 reaches the preset time, and sending a high level to the first control unit to enable the first control unit to be continuously conducted.
Further, the first control unit includes: triode Q1, resistance R2, clamp diode D1, the pin 1 of resistance R2 is connected to triode Q1 'S S utmost point, and its pin 2 is connected to triode Q1' S G utmost point, the A utmost point of clamp diode D1 is connected to resistance R2 'S pin 2, and its K utmost point is connected to resistance R2' S pin 1.
Further, the pin 1 of the resistor R3 is connected to the G pole of the triode Q1; the voltage reducing module is electrically connected with the D pole of the triode Q1, and the voltage reducing module is connected to a ground wire.
Further, the second control unit includes: the resistor R4 is electrically connected with the B pole of the triode Q2, and the resistor R4 is electrically connected with the pin 1 of the MCU module.
Further, the novel energy storage power supply key switch circuit further comprises: a diode D4, wherein a K pole of the diode D4 is electrically connected with the pin 2 of the charging capacitor C1; the E pole of the triode Q2 is connected to the common end of the A pole of the diode D4 and the MCU module pin 2, and is connected with the ground wire.
Further, the power supply unit includes: the battery, the diode D1 of being connected with the battery electricity, the A utmost point of diode D1 is connected to the battery, and its K utmost point is connected to the S utmost point of triode Q1.
Further, the power supply unit includes: a power supply p+, a diode D2, the a pole of the diode D2 being connected to the power supply p+, and the K pole thereof being connected to the S pole of the transistor Q1.
Further, the novel energy storage power supply key switch circuit further comprises: and a pin 1 of the resistor R1 is connected to a common terminal of the power supply unit and the S pole of the triode Q1, and a pin 2 of the resistor R1 is connected to a common terminal of the K pole of the diode D3 and the pin 2 of the charging capacitor C1.
Further, the voltage reduction module is a BUCK circuit.
By adopting the scheme, the utility model provides a novel energy storage power supply key switch circuit, which has the following beneficial effects: the control device can ensure that the first control unit and the second control unit are conducted simultaneously, and the MCU module can control the first control unit and the second control unit to be in a continuous conduction state only after detecting that the A pole level duration of the diode D3 reaches the set time, so that normal work is ensured, and the first control unit and the second control unit cannot be in the continuous conduction state in other states, therefore, the problem of starting up caused by false touch can be effectively prevented, the waste of energy sources is avoided, the damage to a battery is avoided, and the service life of the battery is effectively prolonged.
Drawings
Fig. 1 is a circuit diagram of the present utility model.
Wherein: the device comprises a key control module 1, a voltage reduction module 2 and an MCU module 3.
Detailed Description
The utility model will be described in detail below with reference to the drawings and the specific embodiments.
Referring to fig. 1, the present utility model provides a novel power key switch circuit for energy storage, which is characterized by comprising: the device comprises a key control module 1, a voltage reduction module 2 electrically connected with the key control module 1 and an MCU module 3 electrically connected with the voltage reduction module 2; the MCU module 3 is electrically connected with the key control module 1, and the key switch is arranged on the key control module 1.
Specifically, in this embodiment, the key control module 1 includes: the power supply unit, the first control unit, the resistor R3, the second control unit, the charging capacitor C1, the switch SW1 and the diode D3, wherein the first control unit, the resistor R3 and the second control unit are electrically connected with the power supply unit, the switch SW1 is electrically connected with the pin 2 of the charging capacitor C1, the diode D3 is electrically connected with the pin 2 of the switch SW1, and the A pole of the diode D3 is electrically connected with the MCU; the pin 1 of the resistor R3 is electrically connected with the first control unit, and the pin 2 of the resistor R3 is connected to the common end of the pin 1 of the charging capacitor C1 and the second control unit; one end of the second control unit is connected to the ground wire, and the pin 1 end of the switch SW1 is connected to the ground wire; the MCU module 3 is electrically connected with the second control unit and the diode D3.
Specifically, in this embodiment, the voltage reducing module 2 is electrically connected to the first control unit, and after the first control unit is turned on, the voltage flowing from the first control unit to the voltage reducing module is reduced and then is sent to the MCU module 3; therefore, if the first control unit is not turned on or is not in a continuous on state, no voltage will enter the buck module 2 or no voltage will continuously supply power to the MCU module 3, and the present utility model cannot work normally. Specifically, in this embodiment, the BUCK module 2 is a BUCK circuit. In the prior art, the BUCK circuit capable of realizing the function of the BUCK module 2 can be applied to the utility model to realize the function.
Specifically, in this embodiment, the MCU module 3 is configured to drive the second control unit to be turned on after the time of detecting the level passing through the a pole of the diode D3 reaches the preset time, and send a high level to the first control unit to make the first control unit continuously turned on. It should be noted that the MCU module 3 will set how much the level output time on the a pole of the diode D3 reaches, and then will output the corresponding level to drive the second control unit to be turned on, which obviously can prevent the problem of false touch. The MCU module 3 capable of implementing the function of the MCU module 3 in the prior art can be applied to the present utility model to implement the function thereof.
Specifically, in this embodiment, the first control unit includes: triode Q1, resistance R2, clamp diode D1, the pin 1 of resistance R2 is connected to triode Q1 'S S utmost point, and its pin 2 is connected to triode Q1' S G utmost point, the A utmost point of clamp diode D1 is connected to resistance R2 'S pin 2, and its K utmost point is connected to resistance R2' S pin 1.
Specifically, in this embodiment, pin 1 of the resistor R3 is connected to the G pole of the transistor Q1; the voltage reducing module 2 is electrically connected with the D pole of the triode Q1, and the voltage reducing module 2 is connected to the ground line.
Specifically, in the present embodiment, the second control unit includes: the resistor R4 is electrically connected with the B pole of the triode Q2, and the resistor R4 is electrically connected with the pin 1 of the MCU module 3. Specifically, the transistors Q1 and Q2 are P-type transistors.
Specifically, in this embodiment, the novel power storage key switch circuit further includes: a diode D4, wherein a K pole of the diode D4 is electrically connected with the pin 2 of the charging capacitor C1; the E pole of the triode Q2 is connected to the common end of the A pole of the diode D4 and the pin 2 of the MCU module 3, and is connected with the ground wire.
It should be noted that the power supply unit may be composed of a battery and a diode D1, or may be composed of a power source p+ and a diode D2, and may be specifically determined according to actual use requirements; in this embodiment, the power supply unit includes: the battery, the diode D1 of being connected with the battery electricity, the A utmost point of diode D1 is connected to the battery, and its K utmost point is connected to the S utmost point of triode Q1. The battery is a rechargeable battery.
Specifically, in this embodiment, the novel power storage key switch circuit further includes: and a pin 1 of the resistor R1 is connected to a common terminal of the power supply unit and the S pole of the triode Q1, and a pin 2 of the resistor R1 is connected to a common terminal of the K pole of the diode D3 and the pin 2 of the charging capacitor C1.
Specifically, the novel energy storage power supply key switch circuit has the following action processes:
(1) When the key switch is in the OFF state: the voltage BAT+ of the battery is loaded to the S pole of the triode Q1 through the diode D1, the S pole voltage of the triode Q1 is loaded to the triode Q2 and the charging capacitor C1 through the resistor R2 and the resistor R3, under the condition of key OFF, the pin 1 of the MCU module 3 is in a low level, the triode Q2 is in a cut-OFF state, the pin 2 of the charging capacitor C1 is suspended and does not form a loop with the ground wire GND, the resistor R2, the clamping diode ZD1 and the resistor R3 do not flow current, the triode Q1 is in the cut-OFF state at the moment, and the BUCK circuit does not have voltage input, so the MCU module 3 does not supply power, and therefore the battery electric quantity is not consumed.
(2) When the key switch is in the ON state: the current flows from the S pole of the triode Q1 to the resistor R2 and the resistor R3 to charge the charging capacitor C1, then the charging capacitor C1 is charged through the switch SW1 to form a loop, the G pole voltage of the triode Q1 is lower than the S pole voltage of the charging capacitor C1, therefore, the triode Q1 is conducted, the voltage BAT+ of the battery is input as a Buck circuit through the triode Q1, the Buck circuit is reduced to 3.3V and then supplies power to the MCU, the pin 3 of the MCU module 3 detects the A pole level of the diode D3, namely the ON state of a key, and starts timing, after the set time is reached, the pin 1 of the MCU module 3 sends out a high level instruction to drive the triode Q2 to be conducted through the resistor R4, the pin 2 of the resistor R3 is pulled to the ground GND, the G pole level of the triode Q1 is lower than the S pole level, the triode Q1 is in a continuous conducting state, the pin 1 of the MCU module 3 always conducts the triode Q1 to form an interlocking, and the circuit normally works. The clamping diode ZD1 is a G, S-pole voltage clamp of the triode Q1, and the diode D4 is an I/O port device for protecting the MCU module 3.
(3) Short key press state: the current flows from the S pole of the triode Q1 to the resistor R2 and the resistor R3 to charge the charging capacitor C1, and then a loop is formed by the switch SW1, the G pole voltage of the triode Q1 is lower than the S pole voltage of the triode Q1, so that the triode Q1 is conducted, the voltage BAT+ of the battery is input as a Buck circuit through the triode Q1, the Buck circuit is used for reducing the voltage to 3.3V and then supplying power to the MCU, the pin 3 of the MCU module 3 detects the A pole level of the diode D3, namely the ON state of a key, and begins to count time, the triode Q2 is cut off, and when the key releases electricity in the charging capacitor C1, the resistor R3, the resistor R2 and the resistor R1 discharge until the electricity at two ends of the charging capacitor C1 is completely discharged; at this time, no current passes through the resistor R2 and the resistor R3 at the S pole of the transistor Q1, and the G pole voltage of the transistor Q1 is equal to the S pole voltage thereof, and therefore,
Transistor Q1 is turned off.
In addition, when the key is pressed for a long time or the key fails to be short-circuited, as the timing of the MCU module 3 exceeds the preset time, the pin 1 of the MCU module 3 emits a low level to enable the triode Q2 to be cut OFF, as the switch key is always closed, the S electrode of the triode Q1 has current to flow through the resistor R2 and the resistor R3 to charge the charging capacitor C1, the charging capacitor C1 is cut OFF after the voltage is charged to be equal to the S electrode of the triode Q1, the circuit is in a static state, and the charging capacitor C1 can be restored to an initial state after being discharged until the key is turned OFF.
Obviously, in the novel energy storage power supply key switch circuit, under the cooperation of the key control module 1, the voltage reduction module 2 and the MCU module 3, the MCU module 3 can control the triode Q1 and the triode Q2 to be in a continuous conduction state only after the MCU module 3 detects that the A pole level duration of the diode D3 reaches the set time, so that normal operation is ensured, and in other states, the triode Q1 and the triode Q2 cannot be in the continuous conduction state, thus the problem of starting caused by false touch can be effectively prevented, the waste of energy sources is avoided, the battery is avoided to be damaged, and the service life of the battery is effectively prolonged.
The foregoing description of the preferred embodiment of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (9)
1. Novel energy storage power button switch circuit, its characterized in that includes: the device comprises a key control module, a voltage reducing module electrically connected with the key control module and an MCU module electrically connected with the voltage reducing module;
The key control module comprises: the power supply unit, the first control unit, the resistor R3, the second control unit, the charging capacitor C1, the switch SW1 and the diode D3, wherein the first control unit, the resistor R3 and the second control unit are electrically connected with the power supply unit, the switch SW1 is electrically connected with the pin 2 of the charging capacitor C1, the diode D3 is electrically connected with the pin 2 of the switch SW1, and the A pole of the diode D3 is electrically connected with the MCU; the pin 1 of the resistor R3 is electrically connected with the first control unit, and the pin 2 of the resistor R3 is connected to the common end of the pin 1 of the charging capacitor C1 and the second control unit; one end of the second control unit is connected to the ground wire, and the pin 1 end of the switch SW1 is connected to the ground wire;
The voltage reduction module is electrically connected with the first control unit, and after the first control unit is conducted, the voltage flowing from the first control unit to the voltage reduction module is reduced and then is transmitted to the MCU module;
The MCU module is used for driving the second control unit to be conducted after the time of detecting the level passing through the A pole of the diode D3 reaches the preset time, and sending a high level to the first control unit to enable the first control unit to be continuously conducted.
2. The novel energy storage power key switch circuit as claimed in claim 1, wherein the first control unit comprises: triode Q1, resistance R2, clamp diode D1, the pin 1 of resistance R2 is connected to triode Q1 'S S utmost point, and its pin 2 is connected to triode Q1' S G utmost point, the A utmost point of clamp diode D1 is connected to resistance R2 'S pin 2, and its K utmost point is connected to resistance R2' S pin 1.
3. The novel energy storage power supply key switch circuit as claimed in claim 2, wherein a pin 1 of the resistor R3 is connected to a G pole of the triode Q1; the voltage reducing module is electrically connected with the D pole of the triode Q1, and the voltage reducing module is connected to a ground wire.
4. The novel energy storage power key switch circuit as claimed in claim 1, wherein the second control unit comprises: the resistor R4 is electrically connected with the B pole of the triode Q2, and the resistor R4 is electrically connected with the pin 1 of the MCU module.
5. The novel power key switch circuit of claim 4, further comprising: a diode D4, wherein a K pole of the diode D4 is electrically connected with the pin 2 of the charging capacitor C1; the E pole of the triode Q2 is connected to the common end of the A pole of the diode D4 and the MCU module pin 2, and is connected with the ground wire.
6. The novel energy storage power key switch circuit as claimed in claim 2, wherein the power supply unit comprises: the battery, the diode D1 of being connected with the battery electricity, the A utmost point of diode D1 is connected to the battery, and its K utmost point is connected to the S utmost point of triode Q1.
7. The novel energy storage power key switch circuit as claimed in claim 2, wherein the power supply unit comprises: a power supply p+, a diode D2, the a pole of the diode D2 being connected to the power supply p+, and the K pole thereof being connected to the S pole of the transistor Q1.
8. The novel power key switch circuit of claim 2, further comprising: and a pin 1 of the resistor R1 is connected to a common terminal of the power supply unit and the S pole of the triode Q1, and a pin 2 of the resistor R1 is connected to a common terminal of the K pole of the diode D3 and the pin 2 of the charging capacitor C1.
9. The novel energy-storage power key switch circuit of claim 1, wherein the voltage reduction module is a BUCK circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322167970.8U CN220985640U (en) | 2023-08-11 | 2023-08-11 | Novel energy storage power supply key switch circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322167970.8U CN220985640U (en) | 2023-08-11 | 2023-08-11 | Novel energy storage power supply key switch circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220985640U true CN220985640U (en) | 2024-05-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322167970.8U Active CN220985640U (en) | 2023-08-11 | 2023-08-11 | Novel energy storage power supply key switch circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220985640U (en) |
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2023
- 2023-08-11 CN CN202322167970.8U patent/CN220985640U/en active Active
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