Parallel charging device of combined storage battery pack

Abstract

The utility model provides a parallel charging device of a combined storage battery pack, which relates to the technical field of storage battery charging, and is characterized in that universal wheels are arranged at the bottom end of a box body, a power line is arranged behind the box body, the box body is provided with a plurality of accommodating spaces, charging units are arranged in the accommodating spaces, and the interior of the box body is electrically connected with each charging unit; positive and negative charging wires are connected to the front ends of the charging units, each charging wire comprises a charging chuck and a telescopic assembly, the charging wires are telescopically stored through the telescopic assemblies, and according to the parallel charging device of the combined storage battery pack, the multiple charging units are integrated in one box body, so that moving and maintenance are convenient, charging is convenient, and the parallel charging device is used for charging the combined storage battery pack in a parallel mode; according to the charging box, the defects of series charging and unbalanced charging among storage battery packs are overcome, a cooling fan is arranged in the charging box, heat dissipation holes are formed in the box body, a good heat dissipation effect is achieved, positive and negative charging wires of the charging units can be contracted and stretch out during charging, knotting and disorder between the charging wires are prevented, and the parallel charging efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of battery charging technology, specifically to a parallel charging device for a combined battery pack. Background Technology

[0002] The battery pack is the energy carrier of an electric vehicle and a key component affecting its performance. The battery pack is composed of batteries. Due to the limitations of battery materials, the voltage of current battery packs is not very high. However, with the development of society, the voltage required by industry is getting higher and higher. To solve the problem of low battery power supply voltage, it is natural to think of methods such as series and parallel connection of battery packs. The purpose of series connection is to increase the voltage of the battery, while the purpose of parallel connection is to increase the capacity of the battery and increase the output current.

[0003] For example, in electric vehicles used on golf courses, a single battery pack consists of four cells connected in series to form a 3V x 4 = 12V battery. Then, four batteries are connected in series to form a 12V x 4 = 48V battery, which then powers the vehicle. The charging process uses a series connection. However, during the charging process, it is found that due to the varying ages and residual values ​​of the individual batteries, the series connection results in uneven charging. Therefore, a parallel connection method for charging electric vehicles is considered. However, parallel connection also has many inconveniences, which is why this case arises. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a parallel charging device for combined battery packs, which solves the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: A parallel charging device for a combined battery pack: comprising a housing, with casters installed at the bottom of the housing, a power cord connected to the rear end of the housing, an opening on the front of the housing, and several accommodating spaces on the front of the housing, each accommodating space containing a charging unit, the power cord being connected to a power source and electrically connected to each charging unit inside the housing, positive and negative charging cables connected to the front end of each charging unit, the charging cable including a charging clamp and a telescopic component, the charging cable being retractable and retractable by means of the telescopic component.

[0008] Preferably, the telescopic assembly includes a storage housing, a winding spring, a winding sleeve, and a winding cable. One end of the winding spring is fixed to the storage housing, and the other end is fixed to the winding sleeve. The winding sleeve is rotatably connected to the storage housing. The winding cable is wound around the winding sleeve. The inner end of the winding cable is connected to the charging unit, and the outer end is connected to the charging clamp.

[0009] Preferably, the charging unit includes a power conversion module and a charging detection module. The power conversion module converts the input AC power into DC power suitable for charging the battery, and the charging detection module monitors the charging status of the battery, such as voltage, current, and capacity.

[0010] Preferably, the charging unit has a display screen at its front end and also includes a charging switch.

[0011] Preferably, the power cord is spirally arranged, and a hook is provided on the upper side of the rear end face of the housing, on which the power cord can be hung.

[0012] Preferably, a cooling fan is installed inside the housing, and ventilation holes are provided on both sides of the housing, with the ventilation holes on both sides arranged symmetrically.

[0013] (III) Beneficial Effects

[0014] This utility model provides a parallel charging device for a combined battery pack. It has the following advantages:

[0015] This parallel charging device for combined battery packs integrates several charging units into one housing, facilitating movement and maintenance, and enabling convenient charging. It charges combined battery packs in parallel, overcoming the drawbacks of uneven charging between battery packs in series charging. It features a built-in cooling fan and ventilation holes on the housing for effective heat dissipation. The positive and negative charging cables of the charging units are retractable, allowing them to extend during charging and preventing tangling and messiness, thus improving the efficiency of parallel charging. Attached Figure Description

[0016] Figure 1 This is a front isometric view of a parallel charging device for a combined battery pack according to the present invention.

[0017] Figure 2 This is an isometric view of the rear of a parallel charging device for a combined battery pack according to the present invention.

[0018] Figure 3 This is a front structural diagram of a parallel charging device for a combined battery pack according to the present invention.

[0019] Figure 4 This is a schematic diagram of the telescopic component structure of a parallel charging device for a combined battery pack according to this utility model;

[0020] Figure 5 This is a schematic diagram of the charging process of this utility model.

[0021] In the picture: 1. Box body; 2. Casters; 3. Power cord; 4. Charging chuck; 5. Storage shell; 6. Winding spring; 7. Winding sleeve; 8. Winding cable; 9. Display screen; 10. Charging switch; 11. Hook; 12. Ventilation holes. Detailed Implementation

[0022] This utility model embodiment provides a parallel charging device for a combined battery pack, such as... Figure 1-4 As shown, the device includes a housing 1, with casters 2 installed at the bottom. The casters 2 facilitate the movement of the housing 1 and improve charging convenience. A power cord 3 is connected to the rear end of the housing 1. The front of the housing 1 is open and contains several storage spaces. Each storage space contains a charging unit. The power cord 3 is connected to a power source and is electrically connected to each charging unit inside the housing 1. Positive and negative charging cables are connected to the front end of each charging unit. The charging cable includes a charging clamp 4 and a telescopic component. The charging cable is retractable and stored using the telescopic component. Several charging units are integrated inside the housing 1, which facilitates parallel charging of multiple sets of batteries and also facilitates the management and maintenance of the charging power supply. The positions of each charging unit are replaceable, and old units can be replaced with new ones.

[0023] Example 1, in the above technical solution, such as Figure 4 As shown, the telescopic assembly includes a storage housing 5, a winding spring 6, a winding sleeve 7, and a winding cable 8. One end of the winding spring 6 is fixed to the storage housing 5, and the other end is fixed to the winding sleeve 7. The winding sleeve 7 is rotatably connected to the storage housing 5. The winding cable 8 is wound around the winding sleeve 7. The inner end of the winding cable 8 is connected to the charging unit, and the outer end is connected to the charging clamp 4. When charging is needed, the charging clamp 4 is held and pulled outward. The winding cable 8 drives the winding sleeve 7 to rotate, which in turn causes the winding spring 6 to extend. When charging is finished, the charging clamp 4 is released, and the winding cable 8, under the return force of the winding spring 6, drives the winding sleeve 7 to rotate back, thereby retracting the winding cable 8.

[0024] In Example 2, the charging unit includes a power conversion module and a charging detection module. The power conversion module converts the input AC power into DC power suitable for charging the battery, and the charging detection module monitors the charging status of the battery, such as voltage, current, and capacity.

[0025] In addition to the power conversion module and the charging detection module, the charging unit may also include the following components:

[0026] Charging protection section: Provides overcharge, over-discharge, and overcurrent protection functions to ensure the safety of the battery and charging equipment.

[0027] Power input section: Connects to an AC power source to obtain electrical energy.

[0028] Charging circuit: Enables efficient transmission and distribution of electrical energy.

[0029] Charging chip: controls the charging process, including adjusting the charging current and voltage.

[0030] Battery interface: Connects to the battery and provides a charging interface.

[0031] Microcontroller control module: controls the entire charging process and coordinates the work of each module.

[0032] Display module: Displays information such as charging status and battery capacity.

[0033] Keyboard input module: Allows users to set charging parameters and view charging information.

[0034] Switch and socket drive control module: controls the charger's switch and socket.

[0035] Temperature sensor module: Monitors temperature during charging to ensure charging safety.

[0036] Transformer module: Used to adjust the voltage to suit the needs of different batteries.

[0037] Indicator circuitry: Displays the status and charging progress of the charging unit, including power indicator, charging indicator, and full charge indicator. These modules work together to ensure the battery is charged safely and effectively. The specific implementation of the charger may vary depending on the application requirements and the object being charged.

[0038] Others, such as Figure 3 As shown, the charging unit has a display screen 9 at its front end and a charging switch 10.

[0039] Example 3, as Figure 2 As shown, the power cord 3 is spirally arranged, which increases the telescopic length of the power cord 3 and leaves slack for the connection of the power cord 3. At the same time, a hook 11 is provided on the upper side of the rear end face of the box 1. When the power cord 3 is not plugged in, the power cord 3 can be hung on the hook 11, which protects the power cord 3 and prevents it from dragging on the ground.

[0040] Additionally, a cooling fan (not shown in the diagram) is installed inside the housing 1. The cooling fan is electrically connected to the power cord 3. When the charging unit is charging, the cooling fan is driven to operate. In conjunction with the symmetrical heat dissipation holes on both sides of the housing 1, the heat dissipation effect inside the housing 1 is improved, preventing the temperature from becoming too high when multiple charging units are installed inside the housing 1.

[0041] Working principle: When the parallel charging device for the combined battery pack is used, such as... Figure 1 and 5As shown, plug the power cord 3 into the power supply, then pull out the positive and negative charging cables of the charging unit from the storage housing 5, so that the charging clip 4 of the positive charging cable is clamped on the positive terminal of the battery, and the charging clip 4 of the negative charging cable is clamped on the negative terminal of the battery. Turn on the charging switch 10 to start charging. The other batteries are operated in sequence. When charging is finished, release the charging clip 4 of the finished charging. Under the action of the return force of the winding spring 6, the winding sleeve 7 is driven to rotate, thereby retracting the winding cable 8.

[0042] In summary, this parallel charging device for the combined battery pack integrates several charging units into a single housing 1, facilitating movement and maintenance, and enabling convenient charging. It is used to charge the combined battery pack in parallel, improving upon the drawbacks of uneven charging between battery packs in series charging. It features a built-in cooling fan and ventilation holes on the housing 1 for effective heat dissipation. The positive and negative charging cables of the charging units are retractable, allowing them to extend during charging and preventing tangling and messiness, thus improving the efficiency of parallel charging.

[0043] 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 parallel charging device for a combination battery pack, characterized by: Including box (1), the box (1) bottom end is equipped with universal wheel (2), the box (1) rear end is connected with power line (3), the box (1) front opening, the box (1) front includes several containing spaces, each containing space is provided with charging unit, the power line (3) is connected with power supply, in the box (1) inside and each charging unit electric connection, the charging unit front end is connected with positive and negative charging wire, the charging wire includes charging chuck (4), telescopic assembly, the charging wire realizes telescopic storage by telescopic assembly.

2. A parallel charging device for a combined battery pack according to claim 1, characterized in that: The telescopic assembly includes storage shell (5), winding spring (6), winding sleeve (7), winding wire (8), one end of the winding spring (6) is fixed on the storage shell (5), the other end is fixed on the winding sleeve (7), the winding sleeve (7) is rotatably connected on the storage shell (5), the winding wire (8) is wound on the winding sleeve (7), the winding wire (8) inner end is connected with the charging unit, and the outer end is connected with the charging chuck (4).

3. A parallel charging device for a combined battery pack according to claim 1, characterized in that: The charging unit includes power conversion module, charging detection module, the power conversion module converts the input alternating current into direct current suitable for battery charging, and the charging detection module monitors the charging state of the battery, such as voltage, current and capacity.

4. A parallel charging device for a combined battery pack according to claim 1, characterized in that: The charging unit front end is provided with display screen (9), further including setting charging switch (10).

5. A parallel charging device for a combined battery pack according to claim 1, characterized in that: The power line (3) is spirally arranged, the box (1) rear end face upper side is provided with hook (11), and the power line (3) can be hung on the hook (11).

6. A parallel charging device for a combined battery pack according to claim 1, characterized in that: The box (1) is internally provided with a cooling fan, and the box (1) is provided with a cooling hole (12) on both sides, and the cooling holes (12) on both sides are symmetrically arranged.

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