CN213367470U - Overcharge prevention device for battery charging process protection - Google Patents
Overcharge prevention device for battery charging process protection Download PDFInfo
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- CN213367470U CN213367470U CN202022650969.7U CN202022650969U CN213367470U CN 213367470 U CN213367470 U CN 213367470U CN 202022650969 U CN202022650969 U CN 202022650969U CN 213367470 U CN213367470 U CN 213367470U
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Abstract
The utility model discloses a prevent overcharge device for battery charging process protection, including rectifier D1, fuse FB1, electric capacity C1, electric capacity C2, resistance R4, resistance R5, electric capacity C7, the model is the current acquisition chip U2 of ZXCT1009, resistance R7, resistance R8, electric capacity C8, resistance R9, the model is MC 34063's calculation chip U1, resistance R1, diode D2, resistance R2, resistance R3, electric capacity C5 and electric capacity C6; the CII pin of the computing chip U1 is connected between the resistor R2 and the resistor R3. Through the proposal, the utility model discloses simple structure, advantage such as multiple functional have very high practical value and spreading value in battery technical field.
Description
Technical Field
The utility model belongs to the technical field of the battery technique and specifically relates to a prevent overcharging device for battery charging process protection.
Background
The charging mode of the storage battery comprises constant current charging and constant voltage charging. The accumulator is charged by passing direct current through the accumulator in the direction opposite to the discharging current, so that the working capacity of the accumulator is recovered. According to the charging and discharging working mode, the method comprises the steps of uniform charging and floating charging; float charging is a power supply (discharge) operation mode of the storage battery pack, and the system connects the storage battery pack and a power line to a load circuit in parallel, the voltage of the storage battery pack is basically constant and is only slightly higher than the terminal voltage of the storage battery pack, and the loss of the storage battery pack locally acting is compensated by a small amount of current supplied by the power line, so that the storage battery pack can be always kept in a charging satisfaction state without overcharging. The equalizing charge means that the batteries are charged in a constant current and constant time manner in order to equalize the terminal voltage and specific gravity of each battery in the battery pack, and the charging is fast. Particularly, during the floating charging process, the voltage and the circuit of the battery need to be monitored in real time to prevent overcharging. However, the structure of the overcharge preventing device in the related art is complicated.
SUMMERY OF THE UTILITY MODEL
In view of the above, an object of the utility model is to provide an overcharge protection device for battery charging process protection, the utility model discloses a technical scheme as follows:
an anti-overcharging device for protecting a battery charging process comprises a rectifier D1 connected with an alternating current commercial power, a fuse FB1 with one end connected with one output end of a rectifier D1, a capacitor C1 and a capacitor C2 which are connected between the other end of the fuse FB1 and the other output end of a rectifier D1 after being connected in parallel, a resistor R4 and a resistor R5 which are connected between the fuse FB1 and the capacitor C1 and are grounded at the other end, a capacitor C7 with one end connected between a resistor R4 and a resistor R5 and are grounded at the other end, a resistor R6 with one end connected between a resistor R4 and a resistor R5, a Vsense + pin connected between a fuse FB1 and a capacitor C1 and is of a model ZXCT1009, a resistor R7 connected between the Vsense + pin of the current collecting chip U2 and a Vsense-pin, a resistor R8672 and a capacitor C8 which are connected in parallel and are connected with one end connected with an Iout pin of a current collecting chip U2 and the other end connected to the ground, a resistor R9 with one end connected with an Iout pin of a current acquisition chip U2, a calculation chip U1 with the model of MC34063 and with the VCC pin connected between a fuse FB1 and a capacitor C1, a resistor R1 with one end connected with the VCC pin of the calculation chip U1 and the other end connected with a DRC pin, an IPK pin and an SWC pin, a capacitor C4 with one end connected with a TC pin of the calculation chip U1 and the other end grounded, a diode D2 with an input anode grounded and an output cathode connected with an SWE pin of the calculation chip U1, a resistor R2 and a resistor R3 with one end connected with an SWE pin of the calculation chip U1 and the other end grounded after being connected in series, and a capacitor C5 and a capacitor C6 with one end connected with the SWE pin of the calculation chip U1 and the other end grounded after being connected in parallel; the CII pin of the computing chip U1 is connected between the resistor R2 and the resistor R3.
Further, the overcharge protection device for protecting the battery charging process further includes a discharge tube GDT connected between two output terminals of the rectifier D1.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model skillfully arranges the calculation chip U1 to collect and compare the voltage change, and provides voltage and current collection output; the utility model discloses integrated functions such as charge, voltage, current detection, overvoltage protection, had very high practical value and spreading value in battery technical field.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as a limitation of the scope of protection, and for those skilled in the art, other related drawings may be obtained from these drawings without inventive effort.
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
To make the objectives, technical solutions and advantages of the present application more clear, the present invention will be further described with reference to the accompanying drawings and examples, and embodiments of the present invention include, but are not limited to, the following examples. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Examples
As shown in fig. 1, the present embodiment provides an overcharge prevention device for battery charging process protection, which integrates functions of charging, voltage, current detection, overvoltage protection, etc. It should be noted that the logic of the computing chip of the MC34063 in this embodiment belongs to the prior art, and is not described herein again.
In this embodiment, the overcharge protection device for battery charging process protection comprises a rectifier D1 connected to an ac mains, a discharge tube GDT connected between two output terminals of the rectifier D1, a fuse FB1 having one end connected to one output terminal of the rectifier D1, a capacitor C1 and a capacitor C2 connected in parallel between the other end of the fuse FB1 and the other output terminal of the rectifier D1, a resistor R4 and a resistor R5 connected in series between the fuse FB1 and the capacitor C1 and having the other end grounded, a capacitor C7 having one end connected between the resistor R4 and the resistor R5 and having the other end grounded, a resistor R6 having one end connected between the resistor R4 and the resistor R5, a Vsense + pin connected between the fuse FB1 and the capacitor C1, a current collecting chip U2 having a model of ZXCT1009, a resistor R7 connected between a Vsense + pin and a Vsense-pin of the current collecting chip U67 2, a resistor R8 and a capacitor C8 which are connected in parallel, one end of which is connected to the Iout pin of the current collection chip U2, and the other end of which is grounded, a resistor R9 which is connected to the Iout pin of the current collection chip U2, a VCC pin which is connected between the fuse FB1 and the capacitor C1, and a calculation chip U1 of the model MC34063, a resistor R1 which is connected to the VCC pin of the calculation chip U1, and the other end of which is connected to the DRC pin, the IPK pin, and the SWC pin, a capacitor C4 which is connected to the TC pin of the calculation chip U1, and the other end of which is grounded, a diode D2 which has an input positive electrode grounded and an output negative electrode connected to the SWE pin of the calculation chip U1, a resistor R8 and a resistor R3 which are connected in series, one end of which is connected to the SWE pin of the calculation chip U1, and the other end of which is grounded, and a capacitor C5 and a capacitor C6 which are; the CII pin of the computing chip U1 is connected between the resistor R2 and the resistor R3. In the present embodiment, the voltage and current during the charging process are collected by the computing chip U1 to confirm the charging state.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and are not limitations on the protection scope of the present invention, but all the changes made by adopting the design principle of the present invention and performing non-creative work on this basis shall fall within the protection scope of the present invention.
Claims (2)
1. An anti-overcharge device for battery charging process protection is characterized by comprising a rectifier D1 connected with an alternating current mains supply, a fuse FB1 with one end connected with one output end of the rectifier D1, a capacitor C1 and a capacitor C2 which are connected between the other end of the fuse FB1 and the other output end of the rectifier D1 after being connected in parallel, a resistor R4 and a resistor R5 which are connected between the fuse FB1 and the capacitor C1 and are grounded at the other ends after being connected in series, a capacitor C7 with one end connected between a resistor R4 and a resistor R5 and the other end grounded, a resistor R6 and a resistor R57348 with one ends connected between the resistor R4 and the resistor R5, a Vsense + pin connected between the fuse FB1 and the capacitor C1 and a current acquisition chip U2 with the model ZXCT, a resistor R7 connected between a Vsense + pin and a Vsense-pin of the current acquisition chip U2 and a terminal 686U 9 after being connected in parallel, A resistor R8 and a capacitor C8 with the other ends grounded, a resistor R9 with one end connected to an Iout pin of a current acquisition chip U2, a resistor R1 with a VCC pin connected between a fuse FB1 and a capacitor C1 and a model MC34063, a resistor R1 with one end connected to a VCC pin of the calculation chip U1 and the other end connected to a DRC pin, an IPK pin and an SWC pin, a capacitor C4 with one end connected to a TC pin of the calculation chip U1 and the other end grounded, a diode D2 with an input anode grounded and an output cathode connected to a SWE pin of the calculation chip U1, a resistor R2 and a resistor R3 with one end connected to a SWE pin of the calculation chip U1 after series connection and the other end grounded, and a capacitor C5 and a capacitor C6 with one end connected to a SWE pin of the calculation chip U1 and the other end grounded after parallel connection; the CII pin of the computing chip U1 is connected between the resistor R2 and the resistor R3.
2. The device as claimed in claim 1, further comprising a discharge tube GDT connected between the two output terminals of the rectifier D1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022650969.7U CN213367470U (en) | 2020-11-16 | 2020-11-16 | Overcharge prevention device for battery charging process protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022650969.7U CN213367470U (en) | 2020-11-16 | 2020-11-16 | Overcharge prevention device for battery charging process protection |
Publications (1)
| Publication Number | Publication Date |
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| CN213367470U true CN213367470U (en) | 2021-06-04 |
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| CN202022650969.7U Active CN213367470U (en) | 2020-11-16 | 2020-11-16 | Overcharge prevention device for battery charging process protection |
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| CN (1) | CN213367470U (en) |
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