A lead-acid battery pack charger with built-in pluggable power module

Abstract

The utility model relates to lead -acid battery pack charger technical field discloses a kind of lead -acid battery pack chargers of built-in pluggable power module, including shell, the inside module is arranged in the shell, the inside module side wall is fixedly connected with connecting wire, the inside module outer wall is fixedly connected with the block, the inside module side wall is provided with connecting assembly, the shell is provided with heat dissipation component, the connecting assembly includes ball, fixed block and the clamping hole being opened in the inside of fixed block, the fixed block outer wall is fixedly connected in the inside module side wall.In the utility model, by pulling the block, drive inside module moves in shell, fixed block moves with inside module at this time, its clamping hole inner wall extrudes ball, ball is pushed after being stressed and promotes limit plate compression spring one, force is continued to make ball separate from the restriction of clamping hole, to realize the quick disassembly and installation of inside module further, reach the effect that the power module is conveniently maintained and replaced.

Description

Technical Field

[0001] This utility model relates to the field of lead-acid battery pack charger technology, and in particular to a lead-acid battery pack charger with a built-in pluggable power module. Background Technology

[0002] Lead-acid battery packs, as important energy storage devices, are widely used in electric vehicles, uninterruptible power supplies, and emergency lighting. The performance and reliability of their matching chargers directly affect battery life and electrical safety. Traditional chargers mostly adopt an integrated structure, fixing the power conversion, control, and heat dissipation functional units inside the casing. Although this can meet basic charging needs, it has significant shortcomings in terms of modularity and maintainability. As users' requirements for equipment maintenance efficiency and usage flexibility increase, developing a charger structure that facilitates the disassembly and replacement of internal power modules has important practical value.

[0003] Existing lead-acid battery chargers typically use screws or adhesive to fix the internal circuit modules to the casing. The heat dissipation structure is mostly achieved by opening ventilation holes on the casing and installing simple filters. There is no quick release mechanism between the internal power module and the casing. During maintenance, multiple fasteners need to be removed with tools and electrical connections need to be carefully disconnected. The dustproof design is mostly a fixed mesh plate covering the outside of the air inlet. Although the structure is simple, cleaning often requires stopping the entire machine and disassembling the casing. The operation process is cumbersome and not easy to do frequently.

[0004] The existing structure makes the repair and replacement process extremely inconvenient when the internal modules of the charger malfunction or need to be upgraded. Operators must completely disassemble the device, which is not only time-consuming and labor-intensive, but also damages the connectors or reduces the equipment's sealing performance during repeated disassembly and reassembly. This fixed installation method seriously reduces the maintainability of the equipment and increases downtime, failing to meet the needs of modern industrial applications for efficient operation and maintenance and rapid replacement of faulty modules. Therefore, a lead-acid battery pack charger with a built-in pluggable power module is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a lead-acid battery pack charger with a built-in pluggable power module, which aims to improve the problems of inconvenient, time-consuming and labor-intensive maintenance and replacement caused by the fixed internal modules of traditional chargers in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a lead-acid battery pack charger with a built-in pluggable power module, including a shell, an internal module is provided inside the shell, a connecting wire is fixedly connected to the side wall of the internal module, a lever is fixedly connected to the outer wall of the internal module, a connecting component is provided on the side wall of the internal module, and a heat dissipation component is provided inside the shell. The connecting assembly includes a retaining ball, a fixing block, and a retaining hole inside the fixing block. The outer wall of the fixing block is fixedly connected to the side wall of the inner module and slidably connected to the inside of the outer shell. The retaining ball is slidably connected inside the outer shell, and the retaining ball engages with the retaining hole. A limiting plate is fixedly connected to the side wall of the retaining ball, and the outer wall of the limiting plate is slidably connected to the inside of the outer shell. A spring is provided on the side wall of the limiting plate, with one end of the spring fixedly connected to the side wall of the limiting plate and the other end of the spring fixedly connected to the inside of the outer shell.

[0007] As a further description of the above technical solution: The heat dissipation assembly includes a cooling fan, a dustproof mesh plate, and a fixing frame. The cooling fan is disposed inside the housing. The outer wall of the fixing frame is fixedly connected to the side wall of the housing. The outer wall of the dustproof mesh plate is slidably connected inside the fixing frame.

[0008] As a further description of the above technical solution: A sliding block is slidably connected inside the fixed frame, and a pull ring is fixedly connected to the side wall of the sliding block.

[0009] As a further description of the above technical solution: A locking post is fixedly connected to the other side of the sliding block, and the outer wall of the locking post is slidably connected inside the fixed frame.

[0010] As a further description of the above technical solution: The dustproof mesh panel has a limiting hole inside, and the locking post engages with the limiting hole.

[0011] As a further description of the above technical solution: A connecting block is fixedly connected to the outer wall of the sliding block, and the outer wall of the connecting block is slidably connected inside the fixed frame.

[0012] As a further description of the above technical solution: A second spring is provided on the side wall of the connecting block. One end of the second spring is fixedly connected to the side wall of the connecting block, and the other end of the second spring is fixedly connected to the inside of the fixed frame.

[0013] This utility model has the following beneficial effects: 1. In this utility model, by pulling the lever, the internal module moves within the outer casing. At this time, the fixing block moves with the internal module, and the inner wall of its locking hole squeezes the locking ball. After the locking ball is subjected to force, it pushes the limiting plate to compress the spring. The continuous force causes the locking ball to break free from the restriction of the locking hole, thereby realizing the quick disassembly and installation of the internal module. This achieves the effect of convenient maintenance and replacement of the power module, solving the problem of inconvenient, time-consuming and labor-intensive maintenance and replacement caused by the fixed internal module of the traditional charger, and improving the maintenance efficiency and usage flexibility of the equipment.

[0014] 2. In this utility model, the dustproof mesh effectively prevents dust from entering the interior of the casing through the heat dissipation and ventilation path, avoiding the impact of dust accumulation on the performance and lifespan of the internal modules, and ensuring that the charger can operate stably in dusty environments. When it is necessary to clean the dustproof mesh, pull the pull ring, which drives the sliding block and connecting block to move, thereby squeezing the second spring and causing the locking post to disengage from the limiting hole. Then, the dustproof mesh can be easily pulled to achieve quick separation of the dustproof mesh from the fixed frame, achieving the effect of convenient cleaning of the dustproof mesh. This solves the problems of inconvenient cleaning and difficult effective maintenance of traditional dustproof structures, improves the maintainability and practicality of the equipment's dustproof measures, and ensures that the charger maintains good heat dissipation and dustproof performance for a long time. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of a lead-acid battery pack charger with a built-in pluggable power module proposed in this utility model. Figure 2 This is a schematic diagram of the internal module of a lead-acid battery pack charger with a built-in pluggable power module proposed in this utility model. Figure 3 This is a schematic diagram of the fixing block of a lead-acid battery pack charger with a built-in pluggable power module proposed in this utility model. Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the fixing frame of a lead-acid battery pack charger with a built-in pluggable power module proposed in this utility model. Figure 6 for Figure 5 Enlarged view of point B in the middle.

[0016] Legend: 1. Outer shell; 2. Internal module; 3. Connecting wire; 4. Pulling block; 5. Fixing block; 6. Locking hole; 7. Locking ball; 8. Limiting plate; 9. Spring 1; 10. Cooling fan; 11. Dustproof mesh plate; 12. Limiting hole; 13. Fixing frame; 14. Sliding block; 15. Locking post; 16. Pull ring; 17. Connecting block; 18. Spring 2. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Reference Figures 1-4 This utility model provides an embodiment of a lead-acid battery charger with a built-in pluggable power module, including a housing 1. The housing 1 provides protection and support for the internal components, forming a closed space to protect the internal module 2 from external environmental influences. The internal module 2 is housed inside the housing 1, integrating the core functions of the charger, including power conversion and charging control circuit units, achieving energy conversion and battery charging management. A connecting wire 3 is fixedly connected to the side wall of the internal module 2, enabling circuit communication between the internal module 2 and the external battery, transmitting current through a conductive material. To achieve the effect of power transmission, the outer wall of the internal module 2 is fixedly connected with a lever 4. The lever 4 is used to provide an external force application point, making it convenient for the user to apply pulling or pushing force. It works with the sliding structure of the internal module 2 to realize the insertion and removal operation of the module. The side wall of the internal module 2 is provided with a connecting component. The connecting component is used to realize the detachable fixation of the internal module 2 and the outer shell 1. The two are stably connected and separated by mechanical locking. The outer shell 1 is provided with a heat dissipation component. The heat dissipation component is used to dissipate the heat generated by the internal module 2 when it is working. The internal temperature is reduced by air flow to prevent overheating and ensure the stable operation of the equipment. The connecting assembly includes a retaining ball 7, a fixing block 5, and a retaining hole 6 inside the fixing block 5. The fixing block 5 is fixed to the side wall of the inner module 2 and moves synchronously with the inner module 2. Its outer wall slides against the inner wall of the outer shell 1, providing guidance for the insertion and removal of the inner module 2. The outer wall of the fixing block 5 is fixedly connected to the side wall of the inner module 2 and slidably connected to the inside of the outer shell 1. The retaining ball 7 is slidably connected inside the outer shell 1. The retaining ball 7, in conjunction with the retaining hole 6, locks the fixing block 5 and the outer shell 1 together. By reducing friction through spherical contact, smooth engagement and disengagement are achieved. When the retaining ball 7 and the retaining hole 6 engage, under the elastic force of the spring 9, the retaining ball 7 is embedded inside the retaining hole 6, restricting the movement of the inner module 2. The movement of the fixed block 5 achieves the effect of stabilizing and fixing the internal module 2. The side wall of the ball 7 is fixedly connected to the limiting plate 8. The limiting plate 8 is used to limit the sliding stroke of the ball 7 and prevent the ball 7 from coming out of the shell 1. At the same time, it transmits the elastic force of the spring 9 to the ball 7. The outer wall of the limiting plate 8 is slidably connected to the inside of the shell 1. The side wall of the limiting plate 8 is provided with the spring 9. One end of the spring 9 is fixedly connected to the side wall of the limiting plate 8, and the other end of the spring 9 is fixedly connected to the inside of the shell 1. The spring 9 is used to provide continuous elastic force to the ball 7. When the ball 7 is squeezed, it generates elastic deformation to store potential energy. After the squeezing is released, it pushes the ball 7 to reset, achieving the effect of automatic locking and unlocking.

[0019] Reference Figure 5 and Figure 6The heat dissipation assembly includes a cooling fan 10, a dustproof mesh plate 11, and a fixing frame 13. The cooling fan 10 is located inside the outer casing 1 and rotates to drive airflow, expelling internal heat through the ventilation openings to achieve forced heat dissipation. The outer wall of the fixing frame 13 is fixedly connected to the side wall of the outer casing 1. The fixing frame 13 is used to fix the dustproof mesh plate 11, and its inner wall slides with the dustproof mesh plate 11, providing guidance for the installation and removal of the dustproof mesh plate 11, achieving the effect of positioning and support. The outer wall of the dustproof mesh plate 11 is slidably connected inside the fixing frame 13, and the dustproof mesh plate 11 is used to prevent dust in the air from entering the outer casing 1. The part, through a mesh structure, allows airflow while filtering impurities, achieving both dust prevention and ventilation. A sliding block 14 is slidably connected inside the fixed frame 13. The sliding block 14, in conjunction with a pull ring 16, drives the locking post 15 to move. Linear sliding achieves the engagement and disengagement of the locking post 15 with the limiting hole 12, achieving transmission and control effects. A pull ring 16 is fixedly connected to the side wall of the sliding block 14, providing an external force application point for easy pulling of the sliding block 14. Hand force drives the related components to move. A locking post 15 is fixedly connected to the other side of the sliding block 14, and the outer wall of the locking post 15 is slidably connected to... Inside the fixed frame 13, the locking post 15 engages with the limiting hole 12 to lock the dustproof mesh plate 11 to the fixed frame 13. The movement of the dustproof mesh plate 11 is restricted by the engagement of the post and the hole. The limiting hole 12 is provided inside the dustproof mesh plate 11 to engage with the locking post 15, providing embedding space for the locking post 15. The positioning of the dustproof mesh plate 11 is achieved through the engagement of the hole and the post. With the locking post 15 and the limiting hole 12 engaged, under the elastic force of the spring 18, the locking post 15 is embedded in the limiting hole 12, preventing the dustproof mesh plate 11 from accidentally falling off. A connecting block 17 is fixedly connected to the outer wall of the sliding block 14. The outer wall of the connecting block 17 is slidably connected to the inside of the fixed frame 13. The connecting block 17 is used to connect the sliding block 14 and the second spring 18, and transmit the elastic force of the second spring 18 to the sliding block 14, thereby driving the locking post 15 to reset. The side wall of the connecting block 17 is provided with the second spring 18. One end of the second spring 18 is fixedly connected to the side wall of the connecting block 17, and the other end of the second spring 18 is fixedly connected to the inside of the fixed frame 13. The second spring 18 is used to provide continuous elastic force to the locking post 15. When the pull ring 16 is pulled, it generates elastic deformation to store potential energy. After the pull ring 16 is released, it pushes the connecting block 17 to drive the locking post 15 to reset, thereby achieving the effect of automatic locking.

[0020] Working principle: The internal module 2 is pluggably connected to the outer shell 1 through the connecting component. When disassembly is required, pulling the lever 4 causes the internal module 2 to move under force. The inner wall of the locking hole 6 on the fixing block 5 squeezes the locking ball 7. The locking ball 7 pushes the limiting plate 8 to compress the spring 9, so that the locking ball 7 is released from the restriction of the locking hole 6. Then, continue to pull the lever 4 to separate the internal module 2 from the outer shell 1 to achieve quick disassembly. When installing, the internal module 2 is inserted into the outer shell 1. At this time, the fixing block 5 squeezes the locking ball 7, the limiting plate 8 and the spring 9. When the installation is in place, the spring 9 resets and pushes the limiting plate 8, so that the locking ball 7 is re-embedded in the locking hole 6, and a stable fixation is completed.

[0021] The cooling fan 10 operates to create airflow circulation, expelling the heat generated by the internal module 2 through the ventilation path. The dust filter 11 is installed at the ventilation opening via the fixing frame 13. Its mesh structure allows airflow while filtering dust. When the dust filter 11 needs to be cleaned, pull the pull ring 16 to move the sliding block 14 and the connecting block 17. The connecting block 17 compresses the second spring 18 to disengage the locking post 15 from the limiting hole 12, allowing the dust filter 11 to be pulled out. When resetting after cleaning, release the pull ring 16, and the second spring 18 pushes the connecting block 17 to re-engage the locking post 15 into the limiting hole 12, thus completing the fixing.

Claims

1. A lead-acid battery pack charger with a built-in pluggable power module, comprising a housing (1), characterized in that: The outer shell (1) is provided with an internal module (2), the side wall of the internal module (2) is fixedly connected with a connecting line (3), the outer wall of the internal module (2) is fixedly connected with a toggle block (4), the side wall of the internal module (2) is provided with a connecting component, and the outer shell (1) is provided with a heat dissipation component. The connecting assembly includes a ball (7), a fixing block (5), and a locking hole (6) inside the fixing block (5). The outer wall of the fixing block (5) is fixedly connected to the side wall of the inner module (2). The outer wall of the fixing block (5) is slidably connected to the inside of the outer shell (1). The ball (7) is slidably connected inside the outer shell (1). The ball (7) and the locking hole (6) engage with each other. The side wall of the ball (7) is fixedly connected to a limiting plate (8). The outer wall of the limiting plate (8) is slidably connected to the inside of the outer shell (1). A spring (9) is provided on the side wall of the limiting plate (8). One end of the spring (9) is fixedly connected to the side wall of the limiting plate (8), and the other end of the spring (9) is fixedly connected to the inside of the outer shell (1).

2. A lead-acid battery pack charger with a built-in pluggable power module according to claim 1, characterized in that: The heat dissipation assembly includes a cooling fan (10), a dustproof mesh plate (11), and a fixing frame (13). The cooling fan (10) is disposed inside the outer shell (1). The outer wall of the fixing frame (13) is fixedly connected to the side wall of the outer shell (1). The outer wall of the dustproof mesh plate (11) is slidably connected inside the fixing frame (13).

3. A lead-acid battery pack charger with a built-in pluggable power module according to claim 2, characterized in that: The fixed frame (13) is slidably connected to a sliding block (14), and a pull ring (16) is fixedly connected to the side wall of the sliding block (14).

4. A lead-acid battery pack charger with a built-in pluggable power module according to claim 3, characterized in that: The sliding block (14) is fixedly connected to a locking post (15) on the other side, and the outer wall of the locking post (15) is slidably connected inside the fixed frame (13).

5. A lead-acid battery pack charger with a built-in pluggable power module according to claim 4, characterized in that: The dustproof mesh (11) has a limiting hole (12) inside, and the locking post (15) engages with the limiting hole (12).

6. A lead-acid battery pack charger with a built-in pluggable power module according to claim 3, characterized in that: The outer wall of the sliding block (14) is fixedly connected to a connecting block (17), and the outer wall of the connecting block (17) is slidably connected inside the fixed frame (13).

7. A lead-acid battery pack charger with a built-in pluggable power module according to claim 6, characterized in that: The connecting block (17) is provided with a second spring (18) on its side wall. One end of the second spring (18) is fixedly connected to the side wall of the connecting block (17), and the other end of the second spring (18) is fixedly connected to the inside of the fixed frame (13).

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