CN212811316U - Lead-acid storage battery charger with battery reverse connection protection for generator - Google Patents
Lead-acid storage battery charger with battery reverse connection protection for generator Download PDFInfo
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- CN212811316U CN212811316U CN202021493022.3U CN202021493022U CN212811316U CN 212811316 U CN212811316 U CN 212811316U CN 202021493022 U CN202021493022 U CN 202021493022U CN 212811316 U CN212811316 U CN 212811316U
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- 239000002253 acid Substances 0.000 title claims abstract description 20
- 239000003990 capacitor Substances 0.000 claims description 40
- 238000004804 winding Methods 0.000 claims description 6
- 101001051799 Aedes aegypti Molybdenum cofactor sulfurase 3 Proteins 0.000 claims 1
- 230000017105 transposition Effects 0.000 abstract description 7
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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- Control Of Charge By Means Of Generators (AREA)
Abstract
A lead-acid storage battery charger with battery reverse connection protection for a generator belongs to the technical field of generator charging devices. The utility model discloses a rectifier circuit, chip control circuit and the battery that connect gradually connect the protection circuit in reverse, the battery connects the protection circuit in reverse and includes resistance R2, resistance R4, resistance R6, resistance R8, resistance R11, diode D1, triode TJ3 and MOS pipe QO 3. The utility model discloses an adopt the design of battery transposition protection circuit, can avoid leading to generator and relevant components and parts to damage because of lead acid battery transposition, and low cost. The utility model discloses in, when the generator was out of work, diode D1 can effectively guarantee that the lead acid battery is reverse not power consumptive.
Description
Technical Field
The utility model belongs to the technical field of generator charging device, specifically be relate to a lead acid battery charger that generator was with having battery transposition protection.
Background
At present, a lead-acid storage battery charger for a generator in the market generally does not have a reverse connection protection function, and when a user replaces and starts the storage battery, the positive and negative electrodes of the storage battery and the positive and negative electrodes of the generator are connected in a wrong way, so that related components of the generator are burnt out, and even the generator is damaged. In order to avoid the phenomenon, part of the lead-acid storage battery chargers adopt a battery reverse connection protection circuit with an optical coupling structure for reverse connection protection of the storage battery, but the cost is high, and the product popularization is not facilitated.
Disclosure of Invention
The utility model mainly solves the technical problem existing in the prior art and provides a lead-acid storage battery charger with reverse battery connection protection for a generator.
The above technical problem of the present invention can be solved by the following technical solutions: a lead-acid storage battery charger with battery reverse connection protection for a generator comprises a rectifying circuit, a chip control circuit and a battery reverse connection protection circuit which are connected in sequence, wherein the battery reverse connection protection circuit comprises a resistor R2, a resistor R4, a resistor R6, a resistor R8, a resistor R11, a diode D1, a triode TJ3 and a MOS tube QO3, one end of the resistor R4 is connected with the positive electrodes of the chip control circuit and the diode D1 respectively, the other end of the resistor R4 is connected with the collector of the triode TJ3, one end of the resistor R2 and the grid of the MOS tube QO3 respectively, the drain of the MOS tube QO3 is grounded, the source of the MOS tube QO3 is connected with the chip control circuit and one end of the resistor R11 respectively, the other end of the resistor R11 is connected with the other end of the resistor R2, the emitter of the triode TJ3, one end of the resistor R8 and the chip control circuit, the base of the triode TJ 828653 is connected with one end of the resistor R6 respectively, the other end of the resistor R6 is grounded.
Preferably, the rectifier circuit includes a rectifier bridge stack DF1, the rectifier bridge stack DF1 has 4 connection terminals, which are a first input terminal, a second input terminal, a first output terminal and a second output terminal, the first input terminal and the second input terminal of the rectifier bridge stack DF1 are used for externally connecting a generator dc winding, the first output terminal and the second output terminal of the rectifier bridge stack DF1 are connected to a chip control circuit, and the first output terminal and the second output terminal of the rectifier bridge stack DF1 are connected in parallel to a capacitor C5, a capacitor C9, a capacitor C8 and a TVS tube D4.
Preferably, the chip control circuit includes a chip U1, a diode D2, an inductor L1, a capacitor C2, a capacitor C3, a capacitor C4, a resistor R3, and a resistor R18, the chip U1 has 5 pins, a first pin of the chip U1 is connected to a rectifying circuit, a second pin of the chip U1 is connected to one end of the inductor L1 and a cathode of the diode D1, the other end of the inductor L1 is connected to one end of the capacitor C1, one end of the resistor R1, one end of the capacitor C1 and one end of the resistor R1, the other end of the capacitor C1 is connected to the other end of the resistor R1 and one end of the resistor R1, and is connected to the fourth pin of the chip U1 in common, the other end of the resistor R1 is connected to the fifth pin of the chip U1 and the source of the MOS transistor QO 1, the anode of the diode D1 is connected to the rectifying circuit, the other end of the capacitor C1 and the resistor R1, and their common connections terminate the third leg of chip U1.
The utility model discloses beneficial effect who has: the utility model discloses an adopt the design of battery transposition protection circuit, can avoid leading to generator and relevant components and parts to damage because of lead acid battery transposition, and low cost. In the utility model, when the generator does not work, the diode D1 can effectively ensure that the lead-acid storage battery does not consume power in the reverse direction; under the abnormal condition of the generator, the TVS tube D4 can effectively filter the transient high-voltage pulse output by the direct-current winding of the generator.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. a rectifying circuit; 2. a chip control circuit; 3. the battery is reversely connected with the protection circuit.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Example (b): a lead-acid storage battery charger with battery reverse connection protection for a generator is disclosed, as shown in fig. 1, and comprises a rectifying circuit, a chip control circuit and a battery reverse connection protection circuit which are connected in sequence, wherein the rectifying circuit comprises a rectifying bridge stack DF1, a capacitor C5, a capacitor C8, a capacitor C9 and a TVS tube D4, the rectifying bridge stack DF1 is provided with 4 connecting ends which are respectively a first input end, a second input end, a first output end and a second output end, the first input end and the second input end of the rectifying bridge stack DF1 are respectively used as the first input end and the second input end of the rectifying circuit, the first input end and the second input end of the rectifying bridge stack DF1 are externally connected with a generator direct current winding, the generator direct current winding is the prior art, and the description is not repeated herein, the first output end and the second output end of the rectifying bridge stack DF1 are respectively used as the first output end and the second output end of the rectifying circuit, the capacitor C5, the capacitor C9, the capacitor C8 and the TVS tube D4 are all connected in parallel to the first output end and the second output end.
The chip control circuit comprises a chip U1, a diode D2, an inductor L1, a capacitor C2, a capacitor C3, a capacitor C4, a resistor R3 and a resistor R18, wherein the chip U1 is provided with 5 pins, a first pin of the chip U1 is connected with a first output end of a rectifier bridge stack DF1, a second pin of the chip U1 is respectively connected with one end of the inductor L1 and the negative electrode of the diode D2, the other end of the inductor L1 is respectively connected with one end of the capacitor C4, one end of the resistor R4, one end of the capacitor C4 and a battery reverse connection protection circuit, the other end of the capacitor C4 is respectively connected with the other end of the resistor R4 and one end of the resistor R4, the common connection end of the capacitor R4 is connected with a fourth pin of the chip U4, the other end of the resistor R4 is respectively connected with a fifth pin of the chip U4 and the battery reverse connection protection circuit, and the positive electrode of the rectifier bridge stack are respectively connected with the second output end of the capacitor C, The other end of the capacitor C2 and the battery are reversely connected with the protection circuit, and the common connection of the capacitor C2 and the battery is terminated at the third pin of the chip U1.
The reverse battery protection circuit comprises a resistor R2, a resistor R4, a resistor R6, a resistor R8, a resistor R11, a diode D1, a triode TJ3 and a MOS tube QO3, wherein one end of the resistor R4 is respectively connected with one end of a capacitor C3 and the anode of a diode D1, the cathode of the diode D1 is used as one connecting end of the lead-acid storage battery, the other end of the resistor R4 is respectively connected with the collector of the triode TJ 4, one end of the resistor R4 and the gate of the MOS tube QO 4, the drain of the MOS tube QO 4 is grounded, the drain of the MOS tube QO 4 is used as the other connecting end of the lead-acid storage battery, the source of the MOS tube QO 4 is respectively connected with the fifth pin of the chip U4 and one end of the resistor R4, the other end of the resistor R4 is respectively connected with the other end of the resistor R4, the emitter of the triode TJ 4, one end of the resistor R4 and the base of the capacitor C4, the other end of the resistor R6 is grounded.
In the assembly process, when the lead-acid storage battery is reversely connected, the triode TJ3 is conducted through the resistor R6 and the resistor R8, so that the MOS transistor QO3 is not conducted, the output is cut off, and components are effectively protected from being damaged in time.
To sum up, the utility model discloses an adopt the design of battery transposition protection circuit, can avoid leading to generator and relevant components and parts to damage because of lead acid battery transposition, and low cost. In the utility model, when the generator does not work, the diode D1 can effectively ensure that the lead-acid storage battery does not consume power in the reverse direction; under the abnormal condition of the generator, the TVS tube D4 can effectively filter the transient high-voltage pulse output by the direct-current winding of the generator.
Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the present invention is not limited to the above-described embodiments, and many modifications are possible. Any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should be considered as belonging to the protection scope of the present invention.
Claims (3)
1. A lead-acid storage battery charger with battery reverse connection protection for a generator comprises a rectifying circuit, a chip control circuit and a battery reverse connection protection circuit which are connected in sequence, and is characterized in that the battery reverse connection protection circuit comprises a resistor R2, a resistor R4, a resistor R6, a resistor R8, a resistor R11, a diode D1, a triode TJ3 and a MOS tube QO3, one end of the resistor R4 is connected with the anode of the chip control circuit and the anode of the diode D1 respectively, the other end of the resistor R4 is connected with the collector of a triode TJ3, one end of a resistor R2 and the gate of a MOS tube QO3 respectively, the drain of the MOS tube QO3 is grounded, the source of the MOS tube QO3 is connected with one end of a chip control circuit and a resistor R11 respectively, the other end of the resistor R11 is connected with the other end of a resistor R2, the emitter of a triode TJ3, one end of a resistor R8 and a chip control circuit, the base of a TJ3 is connected with one end of a resistor R8653 and a resistor R86, the other end of the resistor R6 is grounded.
2. The lead-acid battery charger with reverse battery protection for the generator as claimed in claim 1, wherein said rectifier circuit comprises a rectifier bridge stack DF1, said rectifier bridge stack DF1 has 4 connection terminals, respectively a first input terminal, a second input terminal, a first output terminal and a second output terminal, said first input terminal and said second input terminal of the rectifier bridge stack DF1 are used for externally connecting a dc winding of the generator, said first output terminal and said second output terminal of the rectifier bridge stack DF1 are connected to the chip control circuit, and said first output terminal and said second output terminal of the rectifier bridge stack DF1 are connected in parallel to a capacitor C5, a capacitor C9, a capacitor C8 and a TVS tube D4.
3. The generator as claimed in claim 1, wherein the chip control circuit includes a chip U1, a diode D2, an inductor L1, a capacitor C2, a capacitor C3, a capacitor C4, a resistor R3, and a resistor R18, the chip U1 has 5 pins, a first pin of the chip U1 is connected to the rectifying circuit, a second pin of the chip U1 is connected to one end of the inductor L1 and a negative electrode of the diode D2, the other end of the inductor L1 is connected to one end of the capacitor C4, one end of the capacitor C2, one end of the resistor R3, one end of the capacitor C3, and one end of the resistor R4, the other end of the capacitor C3 is connected to the other end of the resistor R3 and one end of the resistor R18, and the common connection thereof is connected to the fourth pin of the chip U1, the other end of the resistor R18 is connected to the fifth pin of the chip U1 and the source electrode of the MOS 3, and the positive electrode of the rectifying circuit are connected to the positive electrode of the diode 2D 2, The other end of the capacitor C4, the other end of the capacitor C2 and one end of the resistor R8, and the common connection thereof terminates the third pin of the chip U1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021493022.3U CN212811316U (en) | 2020-07-24 | 2020-07-24 | Lead-acid storage battery charger with battery reverse connection protection for generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021493022.3U CN212811316U (en) | 2020-07-24 | 2020-07-24 | Lead-acid storage battery charger with battery reverse connection protection for generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212811316U true CN212811316U (en) | 2021-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021493022.3U Expired - Fee Related CN212811316U (en) | 2020-07-24 | 2020-07-24 | Lead-acid storage battery charger with battery reverse connection protection for generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212811316U (en) |
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2020
- 2020-07-24 CN CN202021493022.3U patent/CN212811316U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210326 |
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| CF01 | Termination of patent right due to non-payment of annual fee |