CN219999614U - Heating control board with charging function - Google Patents
Heating control board with charging function Download PDFInfo
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- CN219999614U CN219999614U CN202321217713.4U CN202321217713U CN219999614U CN 219999614 U CN219999614 U CN 219999614U CN 202321217713 U CN202321217713 U CN 202321217713U CN 219999614 U CN219999614 U CN 219999614U
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- resistor
- heating
- diode
- charging
- module
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 81
- 239000003990 capacitor Substances 0.000 claims description 12
- 238000001914 filtration Methods 0.000 claims description 10
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
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Abstract
The utility model relates to the technical field of electronic equipment, in particular to a heating control board with a charging function. The heating control board with the charging function provided by the utility model automatically adjusts the heating switch by automatically detecting the heating temperature; the rechargeable battery is detected and charged by detecting the input voltage and the voltage of the rechargeable battery, so that the problem of repeated charging possibly existing is solved.
Description
Technical Field
The utility model relates to the technical field of electronic equipment, in particular to a heating control board with a charging function.
Background
The heating control board is applied to various heating devices, taking the aspect of battery application as an example, currently, the battery selling technology in the market is mainly divided into two types, namely a terpolymer lithium battery and a lithium iron phosphate battery. They have different performances in the face of low temperature, but in practice, in any battery technology, there is a degradation in battery performance or damage to the battery when the battery is charged in the face of low temperature environment. In order to maintain the performance and safety of the battery, most of the batteries are charged after heating the battery pack at low temperature. Under the condition of low temperature, the lithium ion battery has the problems of poor charge acceptance and insufficient charge, the charging voltage is necessarily increased, the charging time is prolonged, and heat preservation and anti-freezing measures are taken, so that sufficient charge can be ensured, and the service life of the battery is prolonged. However, the bearing temperature of the battery is limited, and the heating temperature needs to be monitored in real time so as to ensure the normal operation of the battery. However, the heating control board is power-consuming in the use process, and inconvenient to carry and use in a mode of externally connecting with a power supply, so that the heating control board with a charging function is designed, but the problem of repeated charging possibly exists in the charging process, and the service life of the heating control board is affected.
Disclosure of Invention
The object of the present utility model is to solve the drawbacks set forth in the background art described above by proposing a heating control board with a charging function.
The technical scheme adopted by the utility model is as follows:
the heating control board with the charging function comprises a heating circuit and a charging circuit, wherein the heating circuit is electrically connected with the charging circuit through a power converter.
As a preferred technical scheme of the utility model: the heating circuit comprises a temperature protection module, a heating switch module and a heating module.
As a preferred technical scheme of the utility model: the temperature protection module comprises a first resistor, wherein a first end of the first resistor is connected with an external power supply, and a second end of the first resistor is connected with the heating switch module.
As a preferred technical scheme of the utility model: the first resistor is a negative temperature coefficient thermistor.
As a preferred technical scheme of the utility model: the heating switch module comprises a second resistor, a first NPN triode, a second PNP triode and a first PMOS tube; the first end of the second resistor is connected with the second end of the first resistor, the second end of the second resistor is connected with the base electrode of the first NPN type triode and the base electrode of the second PNP type triode, the collector electrode of the first NPN type triode is connected with an external power supply, the base electrode of the second PNP type triode is grounded, the emitter electrodes of the first NPN type triode and the second PNP type triode are connected with the grid electrode of the first PMOS tube, the drain electrode of the first PMOS tube is connected with the heating module, and the source electrode of the first PMOS tube is connected with the external power supply.
As a preferred technical scheme of the utility model: the heating module comprises a third resistor and a heating body, wherein the first end of the third resistor is connected with the grid electrode of the first PMOS tube, the second end of the third resistor is connected with the first end of the heating body, and the second end of the heating body is connected with the power converter.
As a preferred technical scheme of the utility model: the charging circuit comprises a comparison charging module, a filtering module and a rectifying module.
As a preferred technical scheme of the utility model: the comparison charging module comprises a fourth resistor, a fifth resistor, a first comparator and a third NPN triode, wherein the first end of the fourth resistor is connected with the power supply converter, the second end of the fourth resistor is connected with the first end of the fifth resistor and the positive input end of the first comparator, the second end of the fifth resistor is grounded, the reverse input end of the first comparator is connected with the charging voltage positive electrode, the third end of the first comparator is grounded, the fourth end of the first comparator is connected with the third NPN triode collector electrode, the output end of the first comparator is connected with the third NPN triode base electrode, and the third NPN triode emitter electrode is connected with the filtering module.
As a preferred technical scheme of the utility model: the filter module comprises a sixth resistor and a first capacitor, wherein the first end of the sixth resistor is connected with the emitter of the third NPN triode, the second end of the sixth resistor is connected with the first end of the first capacitor and the rectifying module, and the second end of the first capacitor is grounded.
As a preferred technical scheme of the utility model: the rectifying unit comprises a first diode, a second diode, a third diode and a fourth diode; the first diode cathode and the second diode cathode are both connected with the anode of the rechargeable battery, the anode of the first diode is connected with the second end of the sixth resistor and the cathode of the third diode, the cathode of the second diode is connected with the cathode of the fourth diode, and the anode of the third diode and the anode of the fourth diode are connected with the cathode of the rechargeable battery.
Compared with the prior art, the heating control board with the charging function has the beneficial effects that:
the heating control board with the charging function provided by the utility model automatically adjusts the heating switch by automatically detecting the heating temperature; the rechargeable battery is detected and charged by detecting the input voltage and the voltage of the rechargeable battery, so that the problem of repeated charging possibly existing is solved.
Drawings
Fig. 1 is a circuit diagram of a heating control board in accordance with a preferred embodiment of the present utility model.
Detailed Description
It should be noted that, under the condition of no conflict, the embodiments of the present embodiments and features in the embodiments may be combined with each other, and the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and obviously, the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, a preferred embodiment of the present utility model provides a heating control board having a charging function, including a heating circuit and a charging circuit, which are electrically connected through a power converter.
The heating circuit comprises a temperature protection module, a heating switch module and a heating module.
The temperature protection module comprises a first resistor, wherein a first end of the first resistor is connected with an external power supply, and a second end of the first resistor is connected with the heating switch module.
The first resistor is a negative temperature coefficient thermistor.
The heating switch module comprises a second resistor, a first NPN triode, a second PNP triode and a first PMOS tube; the first end of the second resistor is connected with the second end of the first resistor, the second end of the second resistor is connected with the base electrode of the first NPN type triode and the base electrode of the second PNP type triode, the collector electrode of the first NPN type triode is connected with an external power supply, the base electrode of the second PNP type triode is grounded, the emitter electrodes of the first NPN type triode and the second PNP type triode are connected with the grid electrode of the first PMOS tube, the drain electrode of the first PMOS tube is connected with the heating module, and the source electrode of the first PMOS tube is connected with the external power supply.
The heating module comprises a third resistor and a heating body, wherein the first end of the third resistor is connected with the grid electrode of the first PMOS tube, the second end of the third resistor is connected with the first end of the heating body, and the second end of the heating body is connected with the power converter.
The charging circuit comprises a comparison charging module, a filtering module and a rectifying module.
The comparison charging module comprises a fourth resistor, a fifth resistor, a first comparator and a third NPN triode, wherein the first end of the fourth resistor is connected with the power supply converter, the second end of the fourth resistor is connected with the first end of the fifth resistor and the positive input end of the first comparator, the second end of the fifth resistor is grounded, the reverse input end of the first comparator is connected with the charging voltage positive electrode, the third end of the first comparator is grounded, the fourth end of the first comparator is connected with the third NPN triode collector electrode, the output end of the first comparator is connected with the third NPN triode base electrode, and the third NPN triode emitter electrode is connected with the filtering module.
The filter module comprises a sixth resistor and a first capacitor, wherein the first end of the sixth resistor is connected with the emitter of the third NPN triode, the second end of the sixth resistor is connected with the first end of the first capacitor and the rectifying module, and the second end of the first capacitor is grounded.
The rectifying unit comprises a first diode, a second diode, a third diode and a fourth diode; the first diode cathode and the second diode cathode are both connected with the anode of the rechargeable battery, the anode of the first diode is connected with the second end of the sixth resistor and the cathode of the third diode, the cathode of the second diode is connected with the cathode of the fourth diode, and the anode of the third diode and the anode of the fourth diode are connected with the cathode of the rechargeable battery.
In this embodiment, the heating circuit and the charging circuit are electrically connected through the power converter. The heating circuit comprises a temperature protection module, a heating switch module and a heating module.
The temperature protection module comprises a first resistor R1 of a negative temperature coefficient thermistor, wherein the first end of the first resistor R1 is connected with an external power supply, and the second end of the first resistor R1 is connected with the heating switch module.
The heating switch module comprises a second resistor R2, a first NPN triode Q1, a second PNP triode Q2 and a first PMOS tube M1; the first end of the second resistor R2 is connected with the second end of the first resistor R1, the second end of the second resistor R2 is connected with the base electrode of the first NPN triode Q1 and the base electrode of the second PNP triode Q2, the collector electrode of the first NPN triode Q1 is connected with an external power supply, the base electrode of the second PNP triode Q2 is grounded, the emitter electrode of the first NPN triode Q1 and the emitter electrode of the second PNP triode Q2 are connected with the grid electrode of the first PMOS tube M1, the drain electrode of the first PMOS tube M1 is connected with the heating module, and the source electrode of the first PMOS tube M1 is connected with the external power supply.
The heating module comprises a third resistor R3 and a heating body L, wherein the first end of the third resistor R3 is connected with the grid electrode of the first PMOS tube M1, the second end of the third resistor R3 is connected with the first end of the heating body L, and the second end of the heating body L is connected with the power converter.
The bases of the first NPN triode Q1 and the second PNP triode Q2 receive the external power supply signal, when the external power supply signal is received, the bases of the first NPN triode Q1 and the second PNP triode Q2 receive high level, the first PMOS tube M1 is conducted, and the heating body L is controlled to heat. The first resistor R1 is used for monitoring the heating temperature of the heating body, when the heating temperature is too high, the resistance value of the first resistor R1 is increased to a value that the circuit cannot be conducted, and the heating body L stops heating.
The charging circuit comprises a comparison charging module, a filtering module and a rectifying module.
The comparison charging module comprises a fourth resistor R4, a fifth resistor R5, a first comparator A1 and a third NPN triode Q3, wherein the first end of the fourth resistor R4 is connected with the power converter, the second end of the fourth resistor R4 is connected with the first end of the fifth resistor R5 and the positive input end of the first comparator A1, the second end of the fifth resistor R5 is grounded, the reverse input end of the first comparator A1 is connected with the charging voltage positive electrode, the third end of the first comparator A1 is grounded, the fourth end of the first comparator A1 is connected with the collector electrode of the third NPN triode Q3, the output end of the first comparator A1 is connected with the base electrode of the third NPN triode Q3, and the emitter electrode of the third NPN triode Q3 is connected with the filtering module.
The filtering module comprises a sixth resistor R6 and a first capacitor C1, the first end of the sixth resistor R6 is connected with the emitter of the third NPN triode Q3, the second end of the sixth resistor R6 is connected with the first end of the first capacitor C1 and the rectifying module, and the second end of the first capacitor C1 is grounded.
The rectifying unit comprises a first diode D1, a second diode D2, a third diode D3 and a fourth diode D4; the cathode of the first diode D1 and the cathode of the second diode D2 are both connected with the anode of the rechargeable battery, the anode D1 of the first diode is connected with the second end of the sixth resistor R6 and the cathode of the third diode D3, the cathode of the second diode D2 is connected with the cathode of the fourth diode D4, and the anodes of the third diode D3 and the fourth diode D4 are connected with the cathode of the rechargeable battery.
The first comparator in the charging circuit compares the input voltage with the voltage of the rechargeable battery, when the input voltage is larger than the voltage of the rechargeable battery, the first comparator outputs a high level to enable the third NPN triode Q3 to be conducted, the rechargeable battery is charged through filtering and rectification, and when the input voltage is smaller than the voltage of the rechargeable battery, the first comparator outputs a low level, the circuit is not conducted, and the rechargeable battery is not charged.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
1. Heating control panel with function of charging, including heating circuit and charging circuit, its characterized in that: the heating circuit is electrically connected with the charging circuit through the power converter, the heating circuit comprises a temperature protection module, a heating switch module and a heating module, the temperature protection module comprises a first resistor, the first end of the first resistor is connected with an external power supply, the second end of the first resistor is connected with the heating switch module, and the first resistor is a negative temperature coefficient thermistor.
2. The heating control board with charging function according to claim 1, characterized in that: the heating switch module comprises a second resistor, a first NPN triode, a second PNP triode and a first PMOS tube; the first end of the second resistor is connected with the second end of the first resistor, the second end of the second resistor is connected with the base electrode of the first NPN type triode and the base electrode of the second PNP type triode, the collector electrode of the first NPN type triode is connected with an external power supply, the base electrode of the second PNP type triode is grounded, the emitter electrodes of the first NPN type triode and the second PNP type triode are connected with the grid electrode of the first PMOS tube, the drain electrode of the first PMOS tube is connected with the heating module, and the source electrode of the first PMOS tube is connected with the external power supply.
3. The heating control board with charging function according to claim 2, characterized in that: the heating module comprises a third resistor and a heating body, wherein the first end of the third resistor is connected with the grid electrode of the first PMOS tube, the second end of the third resistor is connected with the first end of the heating body, and the second end of the heating body is connected with the power converter.
4. A heating control board with charging function according to claim 3, characterized in that: the charging circuit comprises a comparison charging module, a filtering module and a rectifying module.
5. The heating control board with charging function according to claim 4, wherein: the comparison charging module comprises a fourth resistor, a fifth resistor, a first comparator and a third NPN triode, wherein the first end of the fourth resistor is connected with the power supply converter, the second end of the fourth resistor is connected with the first end of the fifth resistor and the positive input end of the first comparator, the second end of the fifth resistor is grounded, the reverse input end of the first comparator is connected with the charging voltage positive electrode, the third end of the first comparator is grounded, the fourth end of the first comparator is connected with the third NPN triode collector electrode, the output end of the first comparator is connected with the third NPN triode base electrode, and the third NPN triode emitter electrode is connected with the filtering module.
6. The heating control board with charging function according to claim 5, wherein: the filter module comprises a sixth resistor and a first capacitor, wherein the first end of the sixth resistor is connected with the emitter of the third NPN triode, the second end of the sixth resistor is connected with the first end of the first capacitor and the rectifying module, and the second end of the first capacitor is grounded.
7. The heating control board with charging function according to claim 6, wherein: the rectifying module comprises a first diode, a second diode, a third diode and a fourth diode; the first diode cathode and the second diode cathode are both connected with the anode of the rechargeable battery, the anode of the first diode is connected with the second end of the sixth resistor and the cathode of the third diode, the cathode of the second diode is connected with the cathode of the fourth diode, and the anode of the third diode and the anode of the fourth diode are connected with the cathode of the rechargeable battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321217713.4U CN219999614U (en) | 2023-05-18 | 2023-05-18 | Heating control board with charging function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321217713.4U CN219999614U (en) | 2023-05-18 | 2023-05-18 | Heating control board with charging function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219999614U true CN219999614U (en) | 2023-11-10 |
Family
ID=88618565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321217713.4U Active CN219999614U (en) | 2023-05-18 | 2023-05-18 | Heating control board with charging function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219999614U (en) |
-
2023
- 2023-05-18 CN CN202321217713.4U patent/CN219999614U/en active Active
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