CN219778283U - SOS circuit structure of portable mobile power source - Google Patents
SOS circuit structure of portable mobile power source Download PDFInfo
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- CN219778283U CN219778283U CN202321181912.4U CN202321181912U CN219778283U CN 219778283 U CN219778283 U CN 219778283U CN 202321181912 U CN202321181912 U CN 202321181912U CN 219778283 U CN219778283 U CN 219778283U
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- 230000009429 distress Effects 0.000 claims abstract description 12
- 239000011324 bead Substances 0.000 claims abstract description 4
- 239000003990 capacitor Substances 0.000 claims description 33
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Abstract
The utility model discloses a portable mobile power source SOS circuit structure, which comprises: the LED key unit is connected with the MCU controller of the mobile power supply and used for sending a distress signal to the MCU controller; the LED driving unit is connected with the MCU controller of the mobile power supply and is used for receiving PWM pulse signals generated by the MCU controller according to the distress signals and converting the PWM pulse signals to generate LED driving signals; and the LED control unit is connected with the LED driving unit and is used for receiving the LED driving signal generated by the LED driving unit and driving the LED lamp beads to emit SOS light according to the LED driving signal. When a user encounters an emergency outdoors, the utility model can simply and conveniently send out the distress signal to obtain effective rescue.
Description
Technical Field
The utility model relates to the technical field of mobile power supplies, in particular to a SOS circuit structure of a portable mobile power supply.
Background
Nowadays, more and more people like outdoor travel activities such as camping, and it is extremely important that the portable mobile power source is applied to outdoor travel. When an emergency occurs in outdoor travel and other communication tools are not available, the system is very important for sending out a distress signal when waiting for rescue. However, the existing portable mobile power supply generally has only a lighting function, has no SOS help-seeking function, and has a single functional design.
To this end, the present inventors have found a method for solving the above-mentioned problems through beneficial studies and studies, and the technical solutions to be described below are made in this context.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: aiming at the defects of the prior art, the SOS circuit structure of the portable mobile power supply capable of sending out SOS signals through SOS light is provided.
The technical problems to be solved by the utility model can be realized by adopting the following technical scheme:
a portable power source SOS circuit structure comprising:
the LED key unit is connected with the MCU controller of the mobile power supply and used for sending a distress signal to the MCU controller;
the LED driving unit is connected with the MCU controller of the mobile power supply and is used for receiving PWM pulse signals generated by the MCU controller according to the distress signals and converting the PWM pulse signals to generate LED driving signals; and
the LED control unit is connected with the LED driving unit and is used for receiving the LED driving signal generated by the LED driving unit and driving the LED lamp beads to emit SOS light according to the LED driving signal.
In a preferred embodiment of the present utility model, the LED key unit includes an LED key, a first resistor, a second resistor, a third resistor, a first capacitor, and a first LED light emitting diode; one end of the LED key is respectively connected with one end of the first resistor and one end of the second resistor in parallel, the other end of the first resistor is connected with one end of the first capacitor in parallel and then is used as a signal output end of the LED key unit to be connected with the MCU controller, the other end of the second resistor is connected with the positive electrode of the power supply, and the other end of the LED key is connected with the other end of the first capacitor in parallel and then is grounded; the anode of the first LED is connected with the anode of the power supply through the third resistor, and the other end of the first LED is used as a signal input end of the LED key unit and is connected with the MCU controller.
In a preferred embodiment of the present utility model, the LED driving unit includes a photo coupler, a triode, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, and a second capacitor; one end of the fourth resistor is used as a signal input end of the LED driving unit and is connected with the MCU controller, the other end of the fourth resistor is respectively connected with one end of the fifth resistor and a base electrode of a triode in parallel, the other end of the fifth resistor is grounded, a collector electrode of the triode is connected with an emitter cathode of the photoelectric coupler, and an emitter electrode of the triode is grounded; the emitter positive electrode of the photoelectric coupler is connected with the power supply positive electrode through a sixth resistor, the receiving end C electrode of the photoelectric coupler is connected with the power supply positive electrode, the receiving end E electrode of the photoelectric coupler is connected with one end of the seventh resistor, one end of the eighth resistor and one end of the second capacitor in parallel, the other end of the seventh resistor is grounded, the other end of the second capacitor is grounded, and the other end of the eighth resistor is used as a signal output end of the LED driving unit to be connected with the LED control unit.
In a preferred embodiment of the present utility model, the LED control unit includes an LED control chip, a zener diode, an inductor, a ninth resistor, a tenth resistor, and third and fourth capacitors;
the VIN pin of the LED control chip is connected with one end of the ninth resistor, one end of the third capacitor and the negative electrode of the zener diode in parallel and then connected with the positive electrode of the power supply, and the other end of the third capacitor is grounded;
the CSN pin of the LED control chip is connected with the other end of the ninth resistor and one end of the fourth capacitor in parallel and then connected with the anode of the LED light-emitting module in the mobile power supply;
the SW pin of the LED control chip is connected with the anode of the voltage stabilizing diode and one end of the inductance coil in parallel, and the other end of the inductance coil is connected with the other end of the fourth capacitor in parallel and then connected with the cathode of the LED light-emitting module in the mobile power supply;
and the GND pin of the LED control chip is grounded, the DIM pin of the LED control chip is connected with one end of the tenth resistor in parallel and then is connected with the signal output end of the LED driving unit, and the other end of the tenth resistor is grounded.
In a preferred embodiment of the present utility model, the LED light emitting module is formed by connecting a plurality of LED lamp groups in series, and each LED lamp group is formed by connecting at least two LED light emitting diodes in parallel.
Due to the adoption of the technical scheme, the utility model has the beneficial effects that: according to the utility model, the LED light-emitting module in the mobile power supply is controlled to be on or off by controlling the PWM brightness, so that SOS light distress signal is formed, and a user can simply and conveniently send the distress signal to obtain effective rescue when the user encounters an emergency outdoors. The utility model has the advantages of simple and convenient operation, low reconstruction cost, low power consumption and the like.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic circuit diagram of the present utility model.
Detailed Description
The utility model is further described with reference to the following detailed drawings in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the implementation of the utility model easy to understand.
Referring to fig. 1, a portable power source SOS circuit structure is shown, which includes an LED key unit 100, an LED driving unit 200, and an LED control unit 300.
The LED key unit 100 is connected to an MCU controller (not shown) of the mobile power supply, and is configured to send a distress signal to the MCU controller. Specifically, the LED key unit 100 includes an LED key SW, resistors R1, R2, R3, a capacitor C1, and an LED light emitting diode VD. One end of the LED key SW is connected with one end of the resistor R1 and one end of the resistor R2 in parallel, the other end of the resistor R1 is connected with one end of the capacitor C1 in parallel and then used as a signal output end TP10 of the LED key unit to be connected with the MCU controller, the other end of the resistor R2 is connected with the positive electrode of the power supply, and the other end of the LED key SW is connected with the other end of the capacitor C1 in parallel and then grounded; the positive electrode of the LED VD is connected with the positive electrode of the power supply through a resistor R3, and the other end of the LED is used as a signal input end TP12 of the LED key unit 100 to be connected with the MCU controller.
The LED driving unit 200 is connected with the MCU controller of the mobile power supply, and is configured to receive the PWM pulse signal generated by the MCU controller according to the distress signal, and perform conversion processing on the PWM pulse signal to generate an LED driving signal. Specifically, the LED driving unit 200 includes a photo coupler OC, a transistor Q, resistors R4, R5, R6, R7, R8, and a capacitor C2. One end of a resistor R4 is used as a signal input end TP13 of the LED driving unit 200 to be connected with the MCU controller, the other end of the resistor R4 is respectively connected with one end of a resistor R5 and the base electrode of a triode Q in parallel, the other end of the resistor R5 is grounded, the collector electrode of the triode Q is connected with the emitter electrode of the photoelectric coupler OC, and the emitter electrode of the triode Q is grounded; the emitter positive electrode of the photoelectric coupling OC device is connected with the power supply positive electrode through a resistor R6, the receiving end C electrode of the photoelectric coupling OC device is connected with the power supply positive electrode, the receiving end E electrode of the photoelectric coupling OC device is connected with one end of a resistor R7, one end of a resistor R8 and one end of a capacitor C2 in parallel, the other end of the resistor R7 is grounded, the other end of the capacitor C2 is grounded, and the other end of the resistor R8 is used as a signal output end TP11 of the LED driving unit 200 to be connected with the LED control unit 300.
The LED control unit 300 is connected to the LED driving unit 200, and is configured to receive the LED driving signal generated by the LED driving unit 200, and drive the LED lamp beads to emit SOS light according to the LED driving signal. Specifically, the LED control unit 300 includes an LED control chip U, a zener diode D, an inductance coil L, resistors R9, R10, and capacitors C3, C4.
The LED control chip U adopts an LED control chip with the model PT4115B89E, the VIN pin of the LED control chip U is connected with one end of a resistor R9, one end of a capacitor C3 and the cathode of a voltage-stabilizing diode D in parallel and then is connected with the anode of a power supply, and the other end of the capacitor C3 is grounded;
the CSN pin of the LED control chip U is connected with the other end of the resistor R9 and one end of the capacitor C4 in parallel and then connected with the anode of the LED light-emitting module 10 in the mobile power supply;
the SW pin of the LED control chip U is connected with the anode of the voltage stabilizing diode D and one end of the inductance coil L in parallel, and the other end of the inductance coil L is connected with the other end of the capacitor C4 in parallel and then connected with the cathode of the LED light-emitting module 10 in the mobile power supply;
the GND pin of the LED control chip U is grounded, and after being connected in parallel with one end of the resistor R10, the DIM pin of the LED control chip U is connected to the signal output terminal TP11 of the LED driving unit 200, and the other end of the resistor R10 is grounded.
The LED light emitting module 10 is formed by connecting a plurality of LED lamp groups 11 in series, and each LED lamp group 11 is formed by connecting two LED light emitting diodes DE in parallel.
The SOS circuit structure of the portable mobile power supply has the following working processes:
sos mode: 3 long and 3 short point modes, namely long pressing the LED key 5s, and short-lighting and short-extinguishing the LED lamp for 3 times and then long-lighting and short-extinguishing for 3 times;
2. long-pressing an LED key SW in the LED key unit 100 for 5 seconds, sending a detection signal to an MCU controller in the mobile power supply through a signal output end T10 of the LED key unit 100, and sending a level signal to the LED key unit 100 through a signal input end TP12 of the LED key unit 100 by the MCU controller so that an LED VD in the LED key unit 100 is lightened; meanwhile, the MCU controller outputs a PWM pulse signal to the LED driving unit 200 through a signal input end TP13 of the LED driving unit 200, then converts the pulse amplitude of the PWM pulse signal from 3.3V to 5V through the LED driving unit 200, then sends the PWM pulse signal to an LED control chip U in the LED control unit 300 through a signal output end TP11 of the LED driving unit 200, and adjusts the width of PWM pulse width to adjust the output voltage of the LED control chip U through the MCU controller so as to control the on and off of the LED lamp.
Pwm pulse width modulation: the MCU controller outputs a square wave PWM signal with the period of 500us at 2KHZ, when 499us is set to be high level, 1us is set to be low level, the LED lamp is on, when 1us is set to be high level, 499us is set to be low level, and the LED lamp is off.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (5)
1. A portable power source SOS circuit structure, comprising:
the LED key unit is connected with the MCU controller of the mobile power supply and used for sending a distress signal to the MCU controller;
the LED driving unit is connected with the MCU controller of the mobile power supply and is used for receiving PWM pulse signals generated by the MCU controller according to the distress signals and converting the PWM pulse signals to generate LED driving signals; and
the LED control unit is connected with the LED driving unit and is used for receiving the LED driving signal generated by the LED driving unit and driving the LED lamp beads to emit SOS light according to the LED driving signal.
2. The SOS circuit structure of claim 1, wherein the LED key unit comprises an LED key, a first resistor, a second resistor, a third resistor, a first capacitor, and a first LED light emitting diode; one end of the LED key is respectively connected with one end of the first resistor and one end of the second resistor in parallel, the other end of the first resistor is connected with one end of the first capacitor in parallel and then is used as a signal output end of the LED key unit to be connected with the MCU controller, the other end of the second resistor is connected with the positive electrode of the power supply, and the other end of the LED key is connected with the other end of the first capacitor in parallel and then is grounded; the anode of the first LED is connected with the anode of the power supply through the third resistor, and the other end of the first LED is used as a signal input end of the LED key unit and is connected with the MCU controller.
3. The SOS circuit structure of claim 2, wherein the LED driving unit comprises a photocoupler, a triode, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, and a second capacitor; one end of the fourth resistor is used as a signal input end of the LED driving unit and is connected with the MCU controller, the other end of the fourth resistor is respectively connected with one end of the fifth resistor and a base electrode of a triode in parallel, the other end of the fifth resistor is grounded, a collector electrode of the triode is connected with an emitter cathode of the photoelectric coupler, and an emitter electrode of the triode is grounded; the emitter positive electrode of the photoelectric coupler is connected with the power supply positive electrode through a sixth resistor, the receiving end C electrode of the photoelectric coupler is connected with the power supply positive electrode, the receiving end E electrode of the photoelectric coupler is connected with one end of the seventh resistor, one end of the eighth resistor and one end of the second capacitor in parallel, the other end of the seventh resistor is grounded, the other end of the second capacitor is grounded, and the other end of the eighth resistor is used as a signal output end of the LED driving unit to be connected with the LED control unit.
4. The SOS circuit structure of claim 3, wherein the LED control unit includes an LED control chip, a zener diode, an inductor, a ninth resistor, a tenth resistor, and third and fourth capacitors;
the VIN pin of the LED control chip is connected with one end of the ninth resistor, one end of the third capacitor and the negative electrode of the zener diode in parallel and then connected with the positive electrode of the power supply, and the other end of the third capacitor is grounded;
the CSN pin of the LED control chip is connected with the other end of the ninth resistor and one end of the fourth capacitor in parallel and then connected with the anode of the LED light-emitting module in the mobile power supply;
the SW pin of the LED control chip is connected with the anode of the voltage stabilizing diode and one end of the inductance coil in parallel, and the other end of the inductance coil is connected with the other end of the fourth capacitor in parallel and then connected with the cathode of the LED light-emitting module in the mobile power supply;
and the GND pin of the LED control chip is grounded, the DIM pin of the LED control chip is connected with one end of the tenth resistor in parallel and then is connected with the signal output end of the LED driving unit, and the other end of the tenth resistor is grounded.
5. The SOS circuit structure of claim 4, wherein the LED light module is formed by connecting a plurality of LED lamp groups in series, and each LED lamp group is formed by connecting at least two LED light emitting diodes in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321181912.4U CN219778283U (en) | 2023-05-17 | 2023-05-17 | SOS circuit structure of portable mobile power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321181912.4U CN219778283U (en) | 2023-05-17 | 2023-05-17 | SOS circuit structure of portable mobile power source |
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| Publication Number | Publication Date |
|---|---|
| CN219778283U true CN219778283U (en) | 2023-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321181912.4U Active CN219778283U (en) | 2023-05-17 | 2023-05-17 | SOS circuit structure of portable mobile power source |
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| CN (1) | CN219778283U (en) |
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2023
- 2023-05-17 CN CN202321181912.4U patent/CN219778283U/en active Active
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