Equalization power supply convenient to assemble and disassemble

Abstract

The utility model aims to provide the equalization power supply which is simple in structure, high in assembly efficiency and relatively low in cost and is convenient to assemble and disassemble. The battery box comprises a battery box body (1) matched with a cover plate, two battery bins (2) are symmetrically arranged on the battery box body, a protection plate bin (3) is arranged on the back face of the battery box body and located between the two battery bins, a wire passing channel (4) is arranged between the battery bins and the protection plate bin, and the wire passing channel is arranged on a partition plate of the battery bins and the protection plate bin. Battery packs (5) are arranged in the two battery bins in a matched mode, a battery protection plate (6) is arranged in the protection plate bin, two connector female heads (7) are arranged on the battery protection plate, connector male heads (8) matched with the connector female heads are arranged on outgoing lines of the battery packs on the two sides respectively, and the connector male heads penetrate through the line passing channels to be connected with the connector female heads in a matched mode. And the battery protection board is also provided with an external discharge interface (9). The utility model is applied to the technical field of power supplies.

Description

Technical Field

[0001] The utility model relates to the technical field of power supplies, in particular to a balanced power supply which is convenient for assembly and disassembly. Background Art

[0002] In the prior art, rechargeable power supplies are widely used in various scenarios, such as various handheld devices, such as mobile phones. The battery pack of the power supply is generally in the form of four batteries connected in series. Generally, a battery box is provided. After the series-connected battery pack is placed in the battery box, a battery management chip is connected to realize functions such as external power discharge, power monitoring, and safety protection of the battery pack. However, this structure brings certain inconveniences. For example, when welding and connecting the battery pack and the battery management chip, it is necessary to ensure the correctness of the corresponding positive and negative poles. Otherwise, it is easy to cause connection errors and damage the battery pack itself and the battery management chip. This requires operators to distinguish the positive and negative poles during assembly, which is prone to errors and causes problems with the power supply, and also results in low assembly efficiency. Another example is that when the power supply fails, the battery pack and the battery management chip need to be removed from the battery box, and the battery pack and the battery management chip are respectively detected and maintained. In this process, the connection point between the battery pack and the battery management chip needs to be damaged to separate the battery pack and the battery management chip and then take them out for maintenance. This is easy to damage the structure of the battery management chip and cause it to be scrapped, thereby increasing the cost. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a balanced power supply which is convenient for assembly and disassembly, has a simple structure, high assembly efficiency, and relatively low cost.

[0004] The technical solution adopted by the utility model is that the utility model includes a battery box with a cover plate. On the front surface of the battery box, two battery compartments are symmetrically arranged. On the back surface of the battery box and between the two battery compartments, a protection board compartment is arranged. A wire passing channel is arranged between the two battery compartments and the protection board compartment. The wire passing channel is arranged on the wall surface of the partition board between the battery compartment and the protection board compartment. In each of the two battery compartments, a battery pack is fitted. A battery protection board is arranged in the protection board compartment. Two female connectors are arranged on the battery protection board. On the lead-out wires of the battery packs on both sides, male connectors adapted to the female connectors are respectively arranged. The male connectors pass through the wire passing channel and are matched and connected with the female connectors. An external power discharge interface and a charging interface are also arranged on the battery protection board.

[0005] As can be seen from the above solution, by setting the battery box into a structure with two battery compartments and one protection board compartment, and connecting the battery compartments and the protection board compartment through a wiring channel, and then using the matching of the female connector and the male connector respectively arranged on the battery protection board and the battery pack, the quick assembly and disassembly of the battery pack and the protection board are realized. At the same time, the battery protection board is used to realize the balanced control of the battery pack; when the battery needs to be charged, fast charging can be achieved through the charging interface, or the battery pack can be quickly removed for charging; by using the matching connection of the male connector and the female connector, the quick connection between the battery pack and the battery protection board is realized, without the need to connect the positive poles and the negative poles separately during assembly as in the traditional structure, reducing the labor intensity of the operator and improving the assembly efficiency; when a fault occurs, the separation between the battery pack and the protection board can be quickly realized, protecting the safety of the battery protection board to the greatest extent and relatively reducing the cost; and the structure is simpler and the production is more convenient, which can also bring cost reduction.

[0006] Further, each of the battery packs is obtained by connecting two batteries in series. Connecting two batteries in series ensures a wide and stable power supply voltage range.

[0007] Still further, the battery protection board is a battery management chip, and the model of the battery management chip is BQ4050. It can be seen that by using the battery management chip of model BQ4050 and taking advantage of the maturity of the chip function, the stability and reliability of the protection board performance are ensured.

[0008] Also further, a voltage measurement module for monitoring the output voltage of the battery pack is provided on the battery protection board, and the voltage measurement module is a transformer of model WP3090. It can be seen that the voltage value of the battery pack can be obtained through the voltage measurement module to confirm whether the battery pack is in the charging state, discharging state, or needs to be charged or stopped charging, and the battery pack can be monitored in real time to effectively protect the battery pack.

[0009] In addition, a debugging port is provided on the battery management chip. Through the debugging port, communication with the peripheral single-chip microcomputer can be carried out through the debugging port, and the parameters of the battery protection board can be quickly configured to meet the requirements of different batches of battery packs and ensure the safe application of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a simple structural schematic diagram of the front view of the battery box of the present utility model;

[0011] Figure 2 is a simple structural schematic diagram of the back view of the battery box of the present utility model;

[0012] Figure 3 It is a schematic diagram of the simple structure of the battery pack and the battery protection board;

[0013] Figure 4 It is a schematic circuit diagram of the present utility model. Specific embodiments

[0014] As Figures 1 to 4 shown, the present utility model includes a battery box 1 with a cover plate. On the front surface of the battery box 1, two battery compartments 2 are symmetrically arranged. On the back surface of the battery box 1 and between the two battery compartments 2, a protection board compartment 3 is provided. A wire passing channel 4 is provided between the two battery compartments 2 and the protection board compartment 3. The wire passing channel 4 is arranged on the wall surface of the partition board between the battery compartment 2 and the protection board compartment 3. In each of the two battery compartments 2, a battery pack 5 is fitted. In the protection board compartment 3, a battery protection board 6 is provided. On the battery protection board 6, two female connectors 7 are provided. On the lead-out wires of the two battery packs 5 on both sides, male connectors 8 adapted to the female connectors 7 are respectively provided. The male connectors 8 pass through the wire passing channel 4 to be matched and connected with the female connectors 7. An external discharge interface 9 and a charging interface are also provided on the battery protection board 6.

[0015] Specifically, each battery pack 5 is obtained by connecting two batteries in series. The battery protection board 6 is a battery management chip U1, and the model of the battery management chip U1 is BQ4050. A voltage measurement module Q1 - Q4 for monitoring the output voltage of the battery pack is also provided on the battery protection board 6. The voltage measurement module Q1 - Q4 is a transformer of model WP3090. Pull-up resistors are provided on the debugging ports SMBC and SMBD of the battery management chip U1 when the debugging ports SMBC and SMBD need to be used to maintain the communication between the battery management chip U1 and the peripheral single-chip microcomputer.

[0016] The structure of the present utility model is simple, which can realize the rapid separation of the battery pack and the battery protection board, and the structure layout is reasonable, which can effectively improve the space utilization rate in the battery box. In addition, when the battery pack is connected to the battery protection board, there is no need to distinguish between the positive and negative poles, and the quick connection can be realized through the connector, which greatly improves the assembly efficiency and reduces the labor intensity of the staff. In addition, through the power supply structure design of the present utility model, good quick isolation protection can be provided for the battery protection board, reducing the manufacturing cost and material cost of the power supply. With the structural design of the battery compartment and the protection board compartment, the space utilization rate is improved.

[0017] Finally, it should be emphasized that the above description is only the preferred embodiment of the present utility model and is not used to limit the present utility model. For those skilled in the art, various changes and modifications can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A balanced power supply that is easy to assemble and disassemble, comprising a battery box (1) with a cover plate, characterized in that: Two battery compartments (2) are symmetrically arranged on the front of the battery box (1); a protection board compartment (3) is arranged on the back of the battery box (1) and between the two battery compartments (2); a wire passage (4) is arranged between the two battery compartments (2) and the protection board compartment (3); the wire passage (4) is arranged on the wall surface of the partition plate between the battery compartment (2) and the protection board compartment (3); a battery pack (5) is adapted in each of the two battery compartments (2); a battery protection board (6) is arranged in the protection board compartment (3); two female connectors (7) are arranged on the battery protection board (6); male connectors (8) adapted to the female connectors (7) are respectively arranged on the lead wires of the battery packs (5) on both sides; the male connectors (8) pass through the wire passage (4) to be matched and connected with the female connector (7); and the battery protection board (6) is also provided with an external discharge interface (9) and a charging interface.

2. The balanced power supply that is easy to assemble and disassemble according to claim 1, characterized in that: Each of the battery packs (5) is obtained by connecting two batteries in series.

3. The balanced power supply that is easy to assemble and disassemble according to claim 1, characterized in that: The battery protection board (6) is a battery management chip (U1), and the model of the battery management chip (U1) is BQ4050.

4. The balanced power supply that is easy to assemble and disassemble according to claim 3, characterized in that: The battery protection board (6) is also provided with a voltage measurement module (Q1-Q4) for monitoring the output voltage of the battery pack, and the voltage measurement module (Q1-Q4) is a transformer of model WP3090.

5. The balanced power supply that is easy to assemble and disassemble according to claim 3, characterized in that: The battery management chip (U1) is also provided with debugging ports (SMBC, SMBD).

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