A charging and discharging equalizer for power battery

By introducing a cooling fan and a temperature sensing device into the power battery charge-discharge equalizer, the problem of poor heat dissipation in traditional battery equalizers is solved, achieving efficient battery pack equalization and extending equipment life.

CN224305446UActive Publication Date: 2026-05-29LIUZHOU VOCATIONAL & TECHN COLLEGE

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LIUZHOU VOCATIONAL & TECHN COLLEGE
Filing Date
2025-04-09
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Traditional battery equalizers have poor heat dissipation, which leads to increased operating temperatures of key internal components, affecting the long-term stability and lifespan of the equipment.

Method used

A charge-discharge equalizer for power batteries was designed, comprising a cooling fan, a temperature sensor, and a control box. The temperature sensor monitors the temperature and automatically activates the cooling fan to dissipate heat when a preset value is reached. Combined with the monitoring box and the equalization circuit box, the battery pack achieves efficient equalization and temperature control.

Benefits of technology

This effectively avoids the problem of excessive internal temperature damaging the internal circuitry, achieving efficient and balanced battery pack operation while extending the overall lifespan.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to battery debugging technical field, concretely is a kind of power battery's charge-discharge equalizer, comprising: working tank, heat dissipation fan is installed in working tank, working tank one surface is equipped with display screen, working tank one end is equipped with wiring frame, and working tank other end is provided with power interface;Control box, control box one end is connected with equalizing circuit box, and control box one end is connected with monitoring box;Beneficial effect is: monitoring box and equalizing circuit box are connected with every single battery in battery pack through wiring frame, while monitoring box can feedback the data monitored to control box, control box carries out analysis processing to the data monitored, then sends command to equalizing circuit box, so that battery pack is debugged through equalizing circuit box, and when the temperature in working tank rises to preset temperature value, heat dissipation fan will automatically open and dissipate heat in working tank, avoid overall equipment temperature excessively high and damage internal circuit.
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Description

Technical Field

[0001] This utility model relates to the field of battery debugging technology, specifically to a charge-discharge equalizer for power batteries. Background Technology

[0002] The equalization of charging and discharging of power batteries can effectively extend battery life, improve overall performance and safety. During charging, equalization technology can prevent individual cells from being overcharged and reduce the risk of thermal runaway caused by excessive voltage. During discharging, it avoids some cells from being over-discharged, thereby protecting the consistency of the battery pack.

[0003] In the existing technology, traditional battery equalizers mainly consist of a monitoring module, a control module, an equalization circuit, and a power supply module. The monitoring module is used to collect data such as voltage, current, and temperature of individual batteries. The control module is responsible for analyzing and processing the data and issuing control commands. The equalization circuit realizes energy transfer between batteries to achieve equalization. The power supply module provides a stable power supply for the entire device. All components work together to achieve proper battery adjustment.

[0004] However, traditional battery equalizers have poor heat dissipation during use, which causes the operating temperature of key internal components to rise, damaging the circuit and affecting the long-term stability and service life of the equipment. Therefore, this utility model proposes a charge and discharge equalizer for power batteries to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a charge-discharge equalizer for power batteries to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a charge-discharge equalizer for a power battery, comprising: a working box, a cooling fan installed inside the working box, a display screen installed on one side of the working box, a wiring frame installed at one end of the working box, and a power interface provided at the other end of the working box;

[0007] The control box is connected to a balancing circuit box at one end and a monitoring box at the other end.

[0008] Preferably, a mounting groove is formed on one end surface of the work box, and a display screen is fixedly installed in the mounting groove. Ventilation grooves are formed on both sides of the work box. An indicator light is fixedly installed on one end surface of the work box. Several support feet are fixedly installed at the bottom of the work box. An installation plate is fixedly installed inside the work box.

[0009] Preferably, the mounting plate has several mounting screw holes on its surface. The internal screws in the mounting screw holes can be threaded to the external screws of the cooling fan. A temperature sensing device is fixedly mounted on the surface of the mounting plate. The cooling fan is electrically connected to the control box, and the temperature sensing device is electrically connected to the control box. The cooling fan faces the ventilation slot on one side of the working box.

[0010] Preferably, the wiring frame has a rectangular parallelepiped structure. One end of the wiring frame has several wiring holes arranged linearly and equidistantly. The upper surface of the wiring frame has a fastening screw hole. A fastening screw is screwed into the fastening screw hole. The fastening screw hole is connected to the wiring hole. The fastening screw hole is located directly above the wiring hole.

[0011] Preferably, the monitoring box is fixedly installed on the inner surface of the working box, the working box is electrically connected to one end of the wiring frame, the monitoring box is electrically connected to the indicator light, and the monitoring box is electrically connected to the control box.

[0012] Preferably, the equalization circuit box is fixedly installed on the inner surface of the working box. The equalization circuit box is electrically connected to one end of the wiring frame and electrically connected to the control box. A power supply box is installed on one side of the control box and electrically connected to it. A power interface is provided on the surface of the power supply box.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model proposes a charge / discharge equalizer for power batteries. During use, both the monitoring box and the equalization circuit box are connected to each individual cell in the battery pack via a wiring frame. Simultaneously, the monitoring box feeds back the monitored data to the control box, which analyzes and processes the data and then sends commands to the equalization circuit box. This allows the equalization circuit box to adjust the battery pack. Furthermore, when the temperature inside the working chamber rises to a preset value, the cooling fan automatically activates to dissipate heat, preventing overheating and damage to the internal circuitry. This achieves efficient battery equalization while extending the overall lifespan of the device, thus avoiding the problem of overheating and damage to the internal circuitry during operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the working frame of this utility model.

[0017] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0018] Figure 4 This is a bottom view of the cross-sectional structure of this utility model.

[0019] In the diagram: 1. Working box; 2. Cooling fan; 3. Display screen; 4. Wiring frame; 5. Power interface; 6. Control box; 7. Equalization circuit box; 8. Monitoring box; 9. Indicator light; 10. Support foot; 11. Mounting plate; 12. Mounting screw hole; 13. Temperature sensor; 14. Ventilation slot; 15. Wiring hole; 16. Fastening screw hole; 17. Fastening screw; 18. Power supply box. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Example 1: Please refer to Figures 1 to 4 This utility model provides a technical solution: a power battery charge and discharge equalizer, comprising: a working box 1, a cooling fan 2 installed inside the working box 1, a display screen 3 installed on a section of the surface of the working box 1, a wiring frame 4 installed at one end of the working box 1, and a power interface 5 provided at the other end of the working box 1.

[0022] Control box 6, one end of control box 6 is connected to equalization circuit box 7, and the other end of control box 6 is connected to monitoring box 8;

[0023] In use, both the monitoring box 8 and the equalization circuit box 7 are connected to each individual battery cell in the battery pack via the wiring frame 4. At the same time, the monitoring box 8 can feed back the monitored data to the control box 6. The control box 6 analyzes and processes the monitored data, and then sends a command to the equalization circuit box 7, thereby adjusting the battery pack through the equalization circuit box 7. When the temperature inside the working box 1 rises to the preset temperature value, the cooling fan 2 will automatically turn on to dissipate heat from the working box 1, preventing the overall equipment temperature from being too high and damaging the internal circuit. This achieves efficient equalization of the battery pack while extending its overall service life, thus avoiding the problem of the internal circuit being damaged by excessive internal temperature during equipment operation.

[0024] Example 2: Based on Example 1, in order to achieve efficient heat dissipation, a mounting plate 11 is provided with several mounting screw holes 12 on its surface. The internal screws of the mounting screw holes 12 can be threaded to the external screws of the cooling fan 2. A temperature sensing device 13 is fixedly mounted on the surface of the mounting plate 11. The temperature sensing device 13 is electrically connected to the control box 6. The cooling fan 2 is electrically connected to the control box 6. The cooling fan 2 faces the ventilation slot 14 opened on one side of the working box 1. A mounting groove is opened on one end surface of the working box 1, and a display screen 3 is fixedly mounted in the mounting groove. Ventilation slots 14 are opened on both sides of the working box 1. An indicator light 9 is fixedly mounted on one end surface of the working box 1. Several support feet 10 are fixedly mounted on the bottom of the working box 1. The mounting plate 11 is fixedly mounted inside the working box 1.

[0025] In order to achieve efficient heat dissipation, a temperature sensor 13 is installed on the surface of the mounting plate 11. The operator can preset the start-up temperature in advance. When the temperature sensor 13 detects that the internal temperature of the device is too high, it will feed this information back to the control box 6. The control box 6 controls the cooling fan 2 to rotate and dissipate heat, thereby achieving automatic heat dissipation when the temperature is too high.

[0026] Example 3: Based on Example 2, a monitoring box 8 is provided for better balancing of the battery pack. The monitoring box 8 is fixedly installed on the inner surface of the working box 1. The working box 1 is electrically connected to one end of the wiring frame 4. The monitoring box 8 is electrically connected to the indicator light 9 and the control box 6. The balancing circuit box 7 is fixedly installed on the inner surface of the working box 1. The balancing circuit box 7 is electrically connected to one end of the wiring frame 4 and the control box 6. A power supply box 18 is installed on one side of the control box 6. The control box 6 and the power supply box 18 are electrically connected. A power interface 5 is provided on the surface of the power supply box 18.

[0027] During balancing, the monitoring box 8 and the balancing circuit box 7 are connected to each individual battery in the battery pack to be balanced via the power interface 5, which facilitates the monitoring and adjustment of each battery. The data detected by the monitoring box 8 is fed back to the control box 6. The control box 6 processes and analyzes the feedback information and sends a command to the balancing circuit box 7 to balance the batteries. If overcharging, over-discharging, or overcurrent occurs, the indicator light 9 will light up, and the control box 6 will receive the signal to automatically shut down the entire control device, thus enabling the whole system to operate efficiently and stably.

[0028] The wiring frame 4 has a rectangular structure. Several wiring holes 15 are arranged linearly and equidistantly on one end surface of the wiring frame 4. Fastening screw holes 16 are opened on the upper surface of the wiring frame 4. Fastening screws 17 are screwed into the fastening screw holes 16. The fastening screw holes 16 are connected to the wiring holes 15. The fastening screw holes 16 are located directly above the wiring holes 15.

[0029] During the wiring process, one end of the wire can be inserted into the wiring hole 15 at one end of the wiring frame 4. By rotating the fastening screw 17 and cooperating with the fastening screw hole 16, the fastening screw 17 is moved in the wiring direction, so that one end of the fastening screw 17 abuts against one end of the wire, thereby fixing one end of the wire in the wiring frame 4 and preventing the wire from falling off during operation and affecting the overall operation.

[0030] Working principle: In actual use, both the monitoring box 8 and the equalization circuit box 7 are connected to each individual battery in the battery pack through the wiring frame 4. At the same time, the monitoring box 8 can feed back the monitored data to the control box 6. The control box 6 analyzes and processes the monitored data, and then sends a command to the equalization circuit box 7, thereby adjusting the battery pack through the equalization circuit box 7. When the temperature inside the working box 1 rises to the preset temperature value, the cooling fan 2 will automatically turn on to dissipate heat from the working box 1, preventing the overall equipment temperature from being too high and damaging the internal circuit. This achieves efficient equalization of the battery pack while improving the overall service life, thus avoiding the problem of the internal circuit being damaged by the excessive internal temperature during equipment operation.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A charge / discharge equalizer for a power battery, comprising: The work box (1) is equipped with a cooling fan (2) and a display screen (3) is installed on one side of the work box (1). The work box (1) is characterized in that: a wiring frame (4) is installed at one end of the work box (1) and a power interface (5) is provided at the other end of the work box (1). Control box (6), one end of control box (6) is connected to equalization circuit box (7), and the other end of control box (6) is connected to monitoring box (8).

2. The charge / discharge equalizer for a power battery according to claim 1, characterized in that: The work box (1) has an installation groove on one end surface, and a display screen (3) is fixedly installed in the installation groove. Ventilation grooves (14) are provided on both sides of the work box (1). An indicator light (9) is fixedly installed on one end surface of the work box (1). Several support feet (10) are fixedly installed at the bottom of the work box (1). An installation plate (11) is fixedly installed inside the work box (1).

3. The charge / discharge equalizer for a power battery according to claim 2, characterized in that: The mounting plate (11) has several mounting screw holes (12) on its surface. The internal screw of the mounting screw hole (12) can be threaded to the external screw of the cooling fan (2). A temperature sensing device (13) is fixedly installed on the surface of the mounting plate (11). The temperature sensing device (13) is electrically connected to the control box (6). The cooling fan (2) is electrically connected to the control box (6). The cooling fan (2) is directly opposite the ventilation slot (14) opened on one side of the working box (1).

4. The charge / discharge equalizer for a power battery according to claim 1, characterized in that: The wiring frame (4) is a rectangular parallelepiped structure. Several wiring holes (15) are arranged linearly and equidistantly on one end surface of the wiring frame (4). A fastening screw hole (16) is provided on the upper surface of the wiring frame (4). A fastening screw (17) is screwed into the fastening screw hole (16). The fastening screw hole (16) is connected to the wiring hole (15). The fastening screw hole (16) is located directly above the wiring hole (15).

5. The charge / discharge equalizer for a power battery according to claim 1, characterized in that: The monitoring box (8) is fixedly installed on the inner surface of the working box (1). The working box (1) is electrically connected to one end of the wiring frame (4), the monitoring box (8) is electrically connected to the indicator light (9), and the monitoring box (8) is electrically connected to the control box (6).

6. The charge / discharge equalizer for a power battery according to claim 1, characterized in that: The equalization circuit box (7) is fixedly installed on the inner surface of the working box (1). The equalization circuit box (7) is electrically connected to one end of the wiring frame (4). The equalization circuit box (7) is electrically connected to the control box (6). A power supply box (18) is installed on one side of the control box (6). The control box (6) is electrically connected to the power supply box (18). A power interface (5) is provided on the surface of the power supply box (18).