Device for externally replacing fuse of energy storage battery pack

Abstract

The utility model discloses a device for externally replacing an energy storage battery pack fuse, which comprises a box body, an opening is arranged on one side of the box body, a BMS cathode and a cathode input terminal are arranged on the inner side of the box body at the opening, the fuse is arranged on the outer side of the box body at the opening, and a metal plate cover plate is arranged on the outer side of the fuse. And the fuse is used for connecting the negative electrode of the BMS and the negative electrode output terminal. As the fuse is arranged on the outer side of the case body, the fuse can be replaced without opening a case cover plate and removing wires, so that the maintenance time is greatly shortened, the operation is simple, and the maintenance safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage battery packs, and more specifically, to a device for externally replacing a fuse of an energy storage battery pack. Background Art

[0002] As energy crises and environmental pollution become increasingly serious, energy storage battery packs, as an important energy storage device, have been widely used in many fields. To prevent short circuits or overcurrent in the energy storage battery pack and ensure product performance and safety, a fuse is usually added to the positive and negative circuits of the energy storage battery pack. However, in existing technologies, when a fuse burns out, the chassis and wiring must be disassembled, which is complicated and time-consuming, and also poses a safety hazard. Therefore, it is necessary to develop a device that can replace the energy storage battery pack fuse externally without disassembling the chassis and wiring. Utility Model Content

[0003] The purpose of the utility model is to provide a device for externally replacing the fuse of an energy storage battery pack, so as to improve the safety and service life of the battery pack.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A device for externally replacing the fuse of an energy storage battery pack includes a box body, an opening is provided on one side of the box body, a BMS negative pole and a negative input terminal are provided on the inside of the box body located at the opening, a fuse is provided on the outside of the box body located at the opening, a sheet metal cover is provided on the outside of the fuse, and the fuse is used to connect the BMS negative pole and the negative output terminal.

[0006] Furthermore, a limit plate for limiting the movement of the safety is provided on the inner side of the opening, and the limit plate is located below the safety.

[0007] Furthermore, the limiting plate is a U-shaped plate, and the bottom of the U-shaped plate has a protrusion extending inward.

[0008] Furthermore, the limiting plate is made of acrylic board.

[0009] Furthermore, a groove recessed inward is provided on one side of the box body, and the opening is located in the groove.

[0010] Compared with the prior art, the advantages of the present invention are: since the fuse is arranged on the outside of the box, there is no need to open the box cover and remove wires when replacing the fuse, which greatly shortens the maintenance time, simplifies the operation and improves the maintenance safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0012] Figure 1 It is a three-dimensional diagram of the device for externally replacing the fuse of the energy storage battery pack of the utility model.

[0013] Figure 2 It is an enlarged view of the fuse part of the device for externally replacing the fuse of the energy storage battery pack of the utility model.

[0014] Figure 3 This is an enlarged view of the acrylic plate in the device for externally replacing the fuse of the energy storage battery pack of the utility model.

[0015] Figure 4 It is a three-dimensional diagram of the entire device for externally replacing the fuse of the energy storage battery pack of the utility model.

[0016] In the figure: chassis 1, fuse 2, sheet metal cover 3, BMS negative pole 4, negative input terminal 5, acrylic plate 6, screw 7. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0018] See Figure 1-4 As shown, the utility model provides a device for externally replacing the fuse of an energy storage battery pack, including a box body 1, an opening is provided on one side of the box body 1, a BMS negative pole 4 and a negative input terminal 5 are provided on the inner side of the box body 1 located at the opening, a fuse 2 is provided on the outer side of the box body 1 located at the opening, a sheet metal cover 3 is provided on the outer side of the fuse 2, and the fuse 2 is used to connect the BMS negative pole 4 and the negative output terminal 5.

[0019] In this embodiment, a stop plate 6 is provided inside the opening to limit the movement of the fuse 2. Located below the fuse 2, the stop plate 6 is a U-shaped plate with an inwardly extending protrusion at the bottom. The stop plate 6 is made of acrylic. The stop plate 6 primarily restricts the movement of the fuse 2, preventing it from falling, avoiding safety hazards, and facilitating fuse replacement.

[0020] In order to make the whole box beautiful and reduce the occupied space, a groove recessed inward is provided on one side of the box 1, and the opening is located in the groove.

[0021] The utility model arranges the fuse 2 of the energy storage battery pack on the outside of the battery pack, and the fuse 2 is connected to the BMS negative electrode 4 and the negative output terminal 5 to form a positive and negative loop connection; when the fuse needs to be replaced, there is no need to open the chassis cover and remove the wires, through external operation, the sheet metal cover 3 is opened, the damaged fuse is pulled out, and the new fuse is inserted into the corresponding position; ensure that both ends of the fuse 2 are connected to the BMS negative electrode 4 and the negative output terminal 5 to form a positive and negative loop connection, and then lock the sheet metal cover 3 to complete the installation.

[0022] Since the fuse is arranged on the outside of the box, the utility model does not need to open the box cover and remove the wires when replacing the fuse, which greatly shortens the maintenance time, is simple to operate, improves the maintenance safety, and improves the reliability and maintainability of the energy storage battery pack.

[0023] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, the patent owner may make various variations or modifications within the scope of the appended claims. As long as they do not exceed the scope of protection described by the claims of the present invention, they should be within the scope of protection of the present invention.

Claims

1. A device for externally replacing the fuse of an energy storage battery pack, comprising a box, characterized in that: An opening is provided on one side of the box body, and a BMS negative pole and a negative input terminal are provided on the inside of the box body at the opening. A fuse is provided on the outside of the box body at the opening, and a sheet metal cover is provided on the outside of the fuse. The fuse is used to connect the BMS negative pole and the negative output terminal.

2. The device for externally replacing the fuse of the energy storage battery pack according to claim 1, characterized in that: A limiting plate for limiting the movement of the safety is also provided on the inner side of the opening, and the limiting plate is located below the safety.

3. The device for externally replacing the fuse of the energy storage battery pack according to claim 2, characterized in that: The limiting plate is a U-shaped plate, and the bottom of the U-shaped plate has a protrusion extending inward.

4. The device for externally replacing the fuse of the energy storage battery pack according to claim 2, characterized in that: The limiting plate is made of acrylic board.

5. The device for externally replacing the fuse of the energy storage battery pack according to claim 1, characterized in that: A groove recessed inward is provided on one side of the box body, and the opening is located in the groove.

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