Battery pack structure assembly of external fuse

Abstract

The utility model belongs to the technical field of energy storage equipment, and provides a battery pack structure assembly with an external fuse, which comprises a first through-wall terminal and a second through-wall terminal which are both connected to a battery cell in a battery pack; the fuse is located between the first through-wall terminal and the second through-wall terminal and is provided with a connecting piece, and the connecting piece is connected to the first through-wall terminal and the second through-wall terminal; and the insulating column is arranged on the mounting panel, and the end part, far away from the mounting panel, of the insulating column abuts against the connecting part of the connecting piece and the fuse. Compared with the prior art, the battery pack has the advantages that the wall-through terminal is arranged outside the battery pack, and the fuse is designed in the circuit formed by the external wall-through terminal and the copper bar, so that the function of quickly replacing the fuse of the battery pack is realized; potential threats to internal components of the battery pack due to damage or fusing of the fuse are avoided, meanwhile, supporting and hanging of the fuse are achieved through the insulating columns, and the safety of the battery pack is further guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of energy storage equipment, and in particular relates to a battery pack structure assembly with an external fuse. Background Art

[0002] With the rapid development of the new energy industry, new energy vehicles and lithium battery energy storage have been widely used. During the use of power batteries, there is a high possibility of faults such as short circuits and overcurrent, which can lead to dangerous situations such as battery overheating, fire, or explosion.

[0003] In energy storage applications, to avoid the aforementioned situation, power battery packs are often equipped with fuses. A fuse is a protective device that automatically disconnects the faulty circuit when an overcurrent or short circuit occurs, protecting the battery and the entire battery system. However, existing battery pack fuses are installed inside the pack. If a fuse is damaged or blows for some reason and needs to be replaced, the battery pack and its cover must be removed for replacement, which is time-consuming and labor-intensive. Furthermore, if a fuse burns out inside the pack, it can easily damage other components within the pack, requiring the removal and replacement of most components and compromising the safety of the battery pack. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to propose a battery pack structure assembly with an external fuse that places the fuse outside the battery pack to facilitate quick replacement while reducing potential threats to the internal components of the battery pack, thereby improving the overall safety.

[0005] The technical solution adopted by the present invention to solve the technical problem is to provide a battery pack structure assembly with an external fuse, including a battery pack and a mounting panel arranged on the outer wall of the battery pack, and further including: a first through-wall terminal and a second through-wall terminal, which are arranged on the mounting panel and spaced apart, and the first through-wall terminal and the second through-wall terminal are both connected to the battery cells in the battery pack;

[0006] a fuse located between the first through-wall terminal and the second through-wall terminal, the fuse being provided with a connector, the connector being respectively connected to the first through-wall terminal and the second through-wall terminal to form a connected circuit;

[0007] An insulating column is provided on the installation panel, wherein the end of the insulating column away from the installation panel abuts against the connection between the connector and the fuse, and is used for supporting the fuse on the installation panel.

[0008] In the above-mentioned battery pack structure assembly with an external fuse, the connecting part includes a first copper bar and a second copper bar respectively connected to both sides of the fuse, the end of the first copper bar away from the fuse is electrically connected to the first through-wall terminal, and the end of the second copper bar away from the fuse is electrically connected to the second through-wall terminal.

[0009] In the above-mentioned battery pack structure assembly with an external fuse, a protective cover is detachably connected to the installation panel, and a accommodating cavity is formed in the protective cover. The first through-wall terminal, the second through-wall terminal, the fuse and the insulating column are all placed in the accommodating cavity.

[0010] In the above-mentioned battery pack structure assembly with an external fuse, the first copper bar and the second copper bar are both arranged in a stepped shape, so that the fuse is installed parallel to the installation panel and in a non-contact manner.

[0011] In the above-mentioned battery pack structure assembly with an external fuse, adjacent ends of the first copper bar and the second copper bar are formed with abutment parts, and the abutment parts are movably abutted against the two side walls of the fuse to limit the movement of the fuse in the horizontal direction.

[0012] In the above-mentioned battery pack structure assembly with an external fuse, the protective cover is further provided with a sealing ring at the periphery of the accommodating cavity, and the sealing ring is movably pressed against the mounting panel.

[0013] In the above-mentioned battery pack structure assembly with an external fuse, connecting parts are extended outward on both sides of the fuse, a first threaded hole is provided on the connecting part, and a second threaded hole is provided on both the first copper bar and the second copper bar. The first threaded hole and the second threaded hole can be connected by a locking member.

[0014] In the above-mentioned battery pack structure assembly with an external fuse, a maintenance switch is also provided on the installation panel. The maintenance switch is used to control the opening and closing of the main circuit so that the fuse can be disassembled and replaced when damaged.

[0015] In the above-mentioned battery pack structure assembly with an external fuse, a plurality of connection holes are provided on the maintenance switch, and the connection holes can be used for fixing members to pass through to fix the maintenance switch on the installation panel.

[0016] In the above-mentioned battery pack structure assembly with an external fuse, a sealing plate is formed by extending from the opening end of the accommodating cavity toward its periphery, and the sealing plate is movably attached to the sealing ring.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] (1) The utility model relates to a battery pack structure assembly with an external fuse. By installing a through-wall terminal on the outside of the battery pack and designing the fuse in a circuit formed by the external through-wall terminal and the copper busbar, the battery pack fuse can be quickly replaced. This effectively avoids potential threats to the internal components of the battery pack due to damage or melting of the fuse, simplifies the maintenance process, and uses insulating columns to support and suspend the fuse, further ensuring the safety of the battery pack.

[0019] (2) Through the cooperation of the protective cover and the sealing ring, the internal space where the fuse is located can be conveniently and efficiently isolated from the external environment, effectively ensuring the airtightness of the structure.

[0020] (3) The maintenance switch can be used to cut off the main circuit in time when the fuse is damaged and needs to be replaced. It is convenient and quick, and provides great protection for the safety of workers when replacing fuses. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a perspective view of the present application;

[0022] Figure 2 yes Figure 1 Exploded view of the local structure at point A.

[0023] In the figure, 1, battery pack; 10, installation panel; 11, protective cover; 110, sealing ring; 111, sealing plate; 12, maintenance switch; 120, connection hole;

[0024] 20. First through-wall terminal; 21. Second through-wall terminal;

[0025] 3. Fuse; 30. Connector; 300. First copper busbar; 301. Second copper busbar; 302. Second threaded hole; 303. Abutting portion; 31. Connecting portion; 310. First threaded hole;

[0026] 4. Insulation column. DETAILED DESCRIPTION

[0027] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0028] like Figures 1 to 2As shown, the utility model provides a battery pack 1 structural assembly with an external fuse 3, including a battery pack 1 and a mounting panel 10 arranged on the outer wall of the battery pack 1. In addition, the battery pack 1 structure also includes: a first through-wall terminal 20 and a second through-wall terminal 21, which are arranged on the mounting panel 10 and are spaced apart, and the first through-wall terminal 20 and the second through-wall terminal 21 are both connected to the battery cells in the battery pack 1; a fuse 3, which is located between the first through-wall terminal 20 and the second through-wall terminal 21, and a connector 30 is provided on the fuse 3, and the connector 30 is respectively connected to the first through-wall terminal 20 and the second through-wall terminal 21 to form a connected circuit; an insulating column 4, which is arranged on the mounting panel 10, and the end of the insulating column 4 away from the mounting panel 10 abuts against the connection between the connector 30 and the fuse 3, for supporting the fuse 3 on the mounting panel 10.

[0029] This solution mainly places the fuse 3 outside the battery pack 1. Specifically, Figures 1 to 2 As shown, the replacement of the fuse 3 can be completed without opening the installation panel 10. In this embodiment, a first through-wall terminal 20 and a second through-wall terminal 21 are installed on the installation panel 10. The structure of the through-wall terminal is similar to the pole on the battery cell cover, which can not only ensure the sealing of the entire battery pack 1, but also realize the subsequent electrical connection between the fuse 3 and the battery cell. At the same time, the connector 30 on the external fuse 3 is respectively used to form a closed-loop circuit with the two through-wall terminals, so that the external fuse 3 provides safety protection for the circuit of the battery pack 1, provides convenience for the rapid replacement of the fuse 3 of the battery pack 1, and effectively reduces the potential threat to the internal components of the battery pack 1. Not only that, the insulating column 4 is also used to realize the support, suspension and insulation effect of the fuse 3, further ensuring the safety of the battery pack 1.

[0030] Preferably, the mounting panel 10 and the battery pack 1 body in this solution can be detachably mounted using screws, bolts or other components.

[0031] The connecting piece 30 includes a first copper bar 300 and a second copper bar 301 respectively connected to both sides of the fuse 3. The end of the first copper bar 300 away from the fuse 3 is electrically connected to the first through-wall terminal 20, and the end of the second copper bar 301 away from the fuse 3 is electrically connected to the second through-wall terminal 21.

[0032] like Figure 2 As shown, the connecting part 30 is mainly composed of a first copper bar 300 and a second copper bar 301 distributed on both sides of the fuse 3. Since the fuse 3 is the core component of the fuse device, the first copper bar 300 and the second copper bar 301 can be used to connect the fuse 3 and the internal module of the battery pack 1, thereby providing technical structural support for the design of the fuse 3 on the outside of the battery pack 1.

[0033] Preferably, if Figure 2 As shown, the first copper bus 300 and the second copper bus 301 in this embodiment are both arranged in a stepped shape, so that the through-wall terminal and the fuse 3 can be located in different planes (i.e., placed in parallel) to achieve a stable connection between the two, and can effectively avoid damage to the fuse 3 and the internal components of the battery pack 1 due to contact with the installation panel 10 when the fuse 3 burns out.

[0034] Preferably, if Figure 2 As shown, in this embodiment, adjacent ends of the first copper bar 300 and the second copper bar 301 are both formed with abutment portions 303, where the adjacent ends refer to the ends of the copper bars away from the mounting panel 10. The two abutment portions 303 are movably abutted against the two side walls of the fuse 3, thereby achieving a positioning and installation effect for the fuse 3, effectively ensuring the stability of the fuse 3 during use, and further ensuring that the fuse 3 can accurately and automatically cut off the faulty circuit when overcurrent and short circuit faults occur in the circuit, thereby protecting the safety of the battery and the entire battery system.

[0035] A protective cover 11 is detachably connected to the mounting panel 10 , and an accommodating cavity is formed in the protective cover 11 . The first through-wall terminal 20 , the second through-wall terminal 21 , the fuse 3 and the insulating column 4 are all placed in the accommodating cavity.

[0036] like Figure 2 As shown, once the fuse 3, through-wall terminal, copper busbar, and insulating column 4 are all installed in their designated locations and form a continuous circuit, the worker can then place the protective cover 11 over the mounting panel 10, thereby sealing the aforementioned components within the accommodating cavity. It should be noted that the protective cover 11 and mounting panel 10 can also be connected using screws, bolts, or other connection structures to facilitate easy installation and removal.

[0037] Preferably, this solution also provides a sealing ring 110 at the periphery of the protective cover 11 located in the accommodating cavity. The sealing ring 110 is movably pressed against the installation panel 10, which can effectively fill the gap between the installation panel 10 and the protective cover 11, thereby effectively improving the airtightness of the protective cover 11 relative to the fuse 3 placed therein.

[0038] Further, if Figure 2 As shown, this embodiment further forms a sealing plate 111 at the open end of the accommodating cavity. The sealing plate 111 extends in a direction parallel to the open end of the accommodating cavity. When the protective cover 11 approaches the mounting panel 10, the sealing plate 111 can be movably attached to the sealing ring 110, so that the components connected to the fuse 3 are sealed in the accommodating cavity, thereby effectively improving the air tightness.

[0039] The two sides of the fuse 3 extend outward to form a connecting portion 31, which is provided with a first threaded hole 310. The first copper bar 300 and the second copper bar 301 are both provided with a second threaded hole 302. The first threaded hole 310 and the second threaded hole 302 can be connected by a locking member.

[0040] like Figure 2 As shown, the connecting parts 31 are respectively formed on the two side walls of the fuse 3. By aligning the first threaded hole 310 and the second threaded hole 302, the locking member can pass through smoothly to achieve the connection between the two, and then the good conductivity of the copper busbar itself is used to ensure the stable connection of the circuit formed together.

[0041] Preferably, if Figure 2 As shown, this embodiment further provides a maintenance switch 12 on the mounting panel 10. It is noteworthy that when the protective cover 11 covers and seals the above components, the maintenance switch 12 is located outside the protective cover 11. That is to say, if the fuse 3 needs to be replaced due to damage, the worker can cut off the main circuit through the maintenance switch 12, and then replace the fuse 3 after removing the protective cover 11. This is convenient and quick, and provides a guarantee for the safety of the worker during the replacement operation.

[0042] Preferably, if Figure 2 As shown, for the installation of the maintenance switch 12, a plurality of connection holes 120 are also provided on the base plate of the maintenance switch 12. The fixing parts pass through the connection holes 120 and are connected to the installation panel 10, thereby restricting and fixing the maintenance switch 12, thereby ensuring the overall stability of the structure.

[0043] It should be noted that the locking member and the fixing member in this solution can be replaced by screws, screws or other connection structures.

[0044] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0045] In addition, terms such as "first," "second," and "an" in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0046] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0047] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

Claims

1. A battery pack structure assembly with an external fuse, comprising a battery pack and a mounting panel disposed on an outer wall of the battery pack, characterized in that: Also included are: A first through-wall terminal and a second through-wall terminal are provided on the mounting panel and spaced apart, wherein the first through-wall terminal and the second through-wall terminal are both connected to the battery cells in the battery pack; a fuse located between the first through-wall terminal and the second through-wall terminal, the fuse being provided with a connector, the connector being respectively connected to the first through-wall terminal and the second through-wall terminal to form a connected circuit; An insulating column is provided on the installation panel, wherein the end of the insulating column away from the installation panel abuts against the connection between the connector and the fuse, and is used for supporting the fuse on the installation panel.

2. The battery pack structure assembly with an external fuse according to claim 1, characterized in that: The connecting piece includes a first copper bar and a second copper bar respectively connected to both sides of the fuse, the end of the first copper bar away from the fuse is electrically connected to the first through-wall terminal, and the end of the second copper bar away from the fuse is electrically connected to the second through-wall terminal.

3. The battery pack structure assembly with an external fuse according to claim 1, characterized in that: A protective cover is detachably connected to the installation panel, and an accommodating cavity is formed in the protective cover. The first through-wall terminal, the second through-wall terminal, the fuse and the insulating column are all placed in the accommodating cavity.

4. The battery pack structure assembly with an external fuse according to claim 2, characterized in that: The first copper bar and the second copper bar are both arranged in a stepped shape, so that the fuse is installed parallel to the installation panel and in a non-contact manner.

5. The battery pack structure assembly with an external fuse according to claim 4, characterized in that: Adjacent ends of the first copper bar and the second copper bar are both formed with abutting portions, and the abutting portions are movably pressed against two side walls of the fuse to limit the movement of the fuse in the horizontal direction.

6. The battery pack structure assembly with an external fuse according to claim 3, characterized in that: The protective cover is further provided with a sealing ring at the periphery of the accommodating cavity, and the sealing ring is movably pressed against the installation panel.

7. The battery pack structure assembly with an external fuse according to claim 2, characterized in that: Both sides of the fuse extend outward to form a connecting portion, which is provided with a first threaded hole. The first copper bar and the second copper bar are both provided with a second threaded hole, and the first threaded hole and the second threaded hole can be connected by a locking member.

8. The battery pack structure assembly with an external fuse according to claim 1, characterized in that: A maintenance switch is also provided on the installation panel, and the maintenance switch is used to control the opening and closing of the main circuit so that the fuse can be disassembled and replaced when it is damaged.

9. The battery pack structure assembly with an external fuse according to claim 8, characterized in that: The maintenance switch is provided with a plurality of connection holes, through which fixing members can pass to fix the maintenance switch on the installation panel.

10. The battery pack structure assembly with an external fuse according to claim 6, characterized in that: A sealing plate is formed by extending from the opening end of the accommodating cavity toward the periphery thereof, and the sealing plate is movably attached to the sealing ring.

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