Fuse box of new energy automobile battery pack

Abstract

The utility model relates to a battery pack structure on a new energy automobile. A fuse box of a new energy automobile battery pack comprises a box body and a box cover, a travel switch installation seat is arranged in the box body, an installation cavity of a travel switch is arranged on the travel switch installation seat, a mistake-proof groove is formed in the cavity wall of the installation cavity, an elastic piece is arranged at an opening of the cavity wall, a pressing protrusion is arranged on the box cover, and the pressing protrusion is arranged on the box cover. The pressing protrusion and the installation cavity are the same in cross section shape. The utility model provides a fuse box of a new energy automobile battery pack, which is directly installed on a frame, effectively protects a travel switch elastic sheet, and is convenient to install and good in stability. The technical problem that screws and support materials need to be added in the high-voltage distribution box because the travel switch elastic sheet is easy to collide in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to a battery pack structure on a new energy vehicle, in particular to a fuse box of a battery pack of a new energy vehicle. Background Art

[0002] New energy vehicles are developing rapidly due to their advantages such as high energy utilization, energy saving and environmental protection. Usually they run under high-power vehicle electricity, with voltages up to 700VDC and currents up to 400A, which poses huge challenges to the design of high-voltage distribution systems and the selection of high-voltage components. Considering the space of the whole vehicle, the complexity of the whole vehicle architecture and the cost, the industry widely adopts centralized high-voltage electrical system architecture for power distribution. The high-voltage power supply directly enters the high-voltage distribution box and is distributed to the system's high-voltage electrical products according to the needs of the system. It has very high requirements on how to ensure the safety of the entire high-voltage system and its various electrical equipment, system insulation, electromagnetic interference and shielding, sealing and vibration resistance.

[0003] A travel switch is generally installed in the current high-voltage distribution box. The main function of the travel switch is to realize the conduction of the interlocking circuit by squeezing the travel switch spring piece by the upper cover after the high-voltage distribution box is installed. The existing travel switch fixing structure is fixed by screws and brackets, which requires additional screws and bracket materials, and requires additional installation time. There is also a risk that the travel switch spring piece is easily hit by the operating tool. Summary of the invention

[0004] The utility model provides a fuse box for a new energy vehicle battery pack that can be directly installed on a vehicle frame, effectively protects a travel switch spring piece, is easy to install, and has good stability; it solves the technical problem in the prior art that the travel switch spring piece is easily hit, and it is necessary to add screws and bracket materials in the high-voltage distribution box.

[0005] The above technical problem of the utility model is solved by the following technical scheme: a fuse box of a new energy vehicle battery pack, comprising a box body and a box cover, a travel switch mounting seat is arranged in the box body, a travel switch mounting seat is arranged on the travel switch mounting seat, an installation cavity of the travel switch is arranged on the cavity wall of the installation cavity, an anti-error groove is arranged on the opening of the cavity wall, and a pressing protrusion is arranged on the box cover, and the pressing protrusion has the same cross-sectional shape as the installation cavity. The travel switch is installed in the installation cavity, and the arrangement of the anti-error groove facilitates the installation of the travel switch. At the same time, the anti-error groove also provides a guiding role for the installation of the travel switch. The fuse box is a plastic product and is directly installed on the vehicle frame. An elastic sheet is also arranged at the opening of the installation cavity. During installation, the elasticity of the elastic sheet can be used to directly lock the travel switch, and it is also convenient to remove the travel switch from the installation cavity. The pressing protrusion on the box cover just extends into the installation cavity, and the spring sheet of the travel switch is supported to realize the conduction of the interlocking circuit.

[0006] Preferably, the error-proofing groove includes a first error-proofing groove and a second error-proofing groove, the groove width of the first error-proofing groove is greater than the groove width of the second error-proofing groove, and the first error-proofing groove cooperates with the column protrusion on the side of the travel switch. The use of slots of different widths to prevent the travel switch from being installed incorrectly has a simple structure and is easy to operate.

[0007] Preferably, a guiding slope is provided at the opening of the error-proofing groove, so that the travel switch can be inserted more conveniently.

[0008] Preferably, the two sides of the elastic sheet are two error-proof grooves opened on the cavity wall, and a stop protrusion is provided on the inner wall of the elastic sheet. Because two grooves are opened on the cavity wall, the cavity wall between the two grooves is in the shape of an elastic sheet with one end fixed and the other end free, so that the cavity wall between the two grooves has a certain degree of freedom and can be opened appropriately, which is convenient for the installation and removal of the travel switch. At the same time, the stop protrusion is provided on the inner wall, which can prevent the travel switch from jumping out of the installation cavity after the travel switch is inserted.

[0009] Preferably, the stop protrusion is a right-angled triangle protrusion with an inclined surface facing downward. When the travel switch enters, the inclined surface provides a guide, and the travel switch is stuck by the bottom surface of the protrusion and cannot fall out. When the travel switch needs to be taken out, the elastic sheets on both sides are spread open to take out the travel switch.

[0010] Preferably, the opening end of the installation cavity is provided with a guide surface, and the guide surface cooperates with the guide surface of the pressing raised edge on the box cover, so that the box cover can be buckled conveniently.

[0011] Therefore, the utility model of a fuse box for a new energy vehicle battery pack has the following advantages: an independent fuse box is designed, which is directly installed on the frame and has a simple structure. At the same time, the anti-error groove of the installation cavity is used to facilitate the installation of the travel switch. At the same time, the design of the anti-error groove provides an elastic sheet to achieve the rapid disassembly of the travel switch. At present, the popularity of new energy vehicles in the vehicle market is constantly increasing, and the battery pack of new energy vehicles pursues higher energy density. In order to add more battery modules, the design space of the distribution system is compressed. The utility model can effectively reduce the design space. It not only meets the fixing requirements of the travel switch, but also reduces costs, facilitates rework, and shortens working hours. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is an exploded view of the fuse box of a new energy vehicle battery pack.

[0013] Figure 2 yes Figure 1 A three-dimensional diagram of the cooperation between the travel mounting seat and the travel switch.

[0014] Figure 3 It is a three-dimensional image of the box cover. DETAILED DESCRIPTION

[0015] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0016] Example:

[0017] like Figure 1 and 2 As shown in Figure 3, a fuse box for a new energy vehicle battery pack includes a box body 4 and a box cover 1 that cooperate with each other. A travel switch mounting seat 3 is formed in the box body 4, and a travel switch mounting cavity 9 is provided on the travel switch mounting seat 3, and the mounting cavity 9 is a rectangular parallelepiped. A first error-proofing groove 6 and a second error-proofing groove 5 are provided on the cavity wall of the mounting cavity, and the groove width of the first error-proofing groove 6 is greater than the groove width of the second error-proofing groove 5. On the cavity wall where the first error-proofing groove 6 and the second error-proofing groove 5 are provided, an elastic sheet 10 is formed because of the opening of the error-proofing groove. A stop protrusion 15 is formed on the inner wall of the two opposing elastic sheets 10, and the stop protrusion 15 is a right-angled triangle protrusion with an inclined surface downward. A guide bevel 12 is formed at the opening of the error-proofing groove, and the first error-proofing groove 6 cooperates with the column protrusion 7 on the side of the travel switch, and the guide bevel 12 of the error-proofing groove facilitates the insertion of the travel switch.

[0018] A pressing protrusion 14 is formed in the center of the box cover 1, and the pressing protrusion 14 has the same cross-sectional shape as the installation cavity. A guide surface 11 is provided at the opening end of the installation cavity, and the guide surface 11 cooperates with the guide surface 13 of the edge of the pressing protrusion on the box cover.

[0019] Install the travel switch 2 into the installation cavity, and through the cooperation between the side column protrusion 7 and the first error-proofing groove 6, the travel switch 2 is installed in the installation cavity 9 in the correct direction, without the need to install the bracket and screws. Then, due to the effect of the stop protrusion 15 on the elastic sheet 10, the travel switch 2 is fixed in the installation cavity 9, and the box cover 1 is covered. The pressing protrusion on the box cover 1 abuts against the spring sheet 8 of the travel switch to achieve conduction. When the travel switch 2 needs to be taken out, it is only necessary to push the elastic sheet 10 outward, and the stop protrusion will make way for the travel switch, and the travel switch can be quickly taken out.

[0020] The specific embodiments described herein are merely examples of the concept of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A fuse box for a new energy vehicle battery pack, characterized in that: The invention comprises a box body and a box cover, wherein a travel switch mounting seat is arranged in the box body, a travel switch mounting cavity is arranged on the travel switch mounting seat, an error-proofing groove is arranged on the cavity wall of the mounting cavity, an elastic sheet is arranged at the opening of the cavity wall, and a pressing protrusion is arranged on the box cover, and the pressing protrusion has the same cross-sectional shape as the mounting cavity.

2. The fuse box of a new energy vehicle battery pack according to claim 1, characterized in that: The error-proofing groove includes a first error-proofing groove and a second error-proofing groove. The width of the first error-proofing groove is greater than the width of the second error-proofing groove. The first error-proofing groove cooperates with the column protrusion on the side of the travel switch.

3. A fuse box for a new energy vehicle battery pack according to claim 2, characterized in that: A guiding inclined surface is arranged at the opening of the anti-error groove.

4. A fuse box for a new energy vehicle battery pack according to claim 1, 2 or 3, characterized in that: The two sides of the elastic sheet are two anti-error grooves opened on the cavity wall, and a stop protrusion is arranged on the inner wall of the elastic sheet.

5. A fuse box for a new energy vehicle battery pack according to claim 4, characterized in that: The stop protrusion is a right-angled triangle protrusion with an inclined surface downward.

6. A fuse box for a new energy vehicle battery pack according to claim 1, 2 or 3, characterized in that: The opening end of the installation cavity is provided with a guide surface, and the guide surface cooperates with the guide surface of the pressing raised edge on the box cover.

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