Protective cover for energy storage high-voltage maintenance switch

Abstract

The utility model relates to the technical field of energy storage batteries, in particular to a protective cover for an energy storage high-voltage maintenance switch. The protective cover is used for covering the rear part of a maintenance switch socket where a busbar mounting surface is located, and comprises a protective cover top wall and a protective cover side wall, the protective cover is separably connected with the maintenance switch socket through the protective cover side wall; the top wall of the protective cover is provided with a protruding part which protrudes outwards in the direction opposite to the busbar installation face, and the protruding part is used for providing a containing space for the signal wire harness and is provided with a signal wire harness opening. A connecting part protective sleeve is arranged on the inner side of the top wall of the protective cover and is used for wrapping the joint of the busbar and the busbar mounting surface; a busbar inlet and outlet is formed in the side wall of the protective cover. According to the utility model, the metal part of the high-voltage busbar can be coated, so that safety accidents such as short circuit and sparking can be prevented during installation operation; the signal wire harness can be effectively protected and fixed, the strength of the wire harness is enhanced, and the service life is prolonged; the busbar installation nut can be effectively prevented from falling off, and the protection effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage batteries, in particular to a protective cover for an energy storage high-voltage maintenance switch. Background Art

[0002] The energy storage high-voltage maintenance switch is a heavy component in the energy storage battery pack. Its function is to manually disconnect the high-voltage connection when installing, repairing, and debugging the energy storage battery pack to ensure the safety of personnel. The maintenance switch is structurally divided into two parts: the socket and the plug. The socket adopts a panel-mounted structure. Inside the maintenance switch socket, there is a mounting surface for connecting the high-voltage busbar, which is used to connect the internal high voltage and set the switch here. The plug can be manually installed or removed from the outside to connect or disconnect the high voltage.

[0003] Inside the repair switch socket, the busbar is fixed to the mounting surface by bolts and exposed. Since this part of the conductor is charged, if it comes into contact with the outside world, safety accidents such as short circuit and spark will occur. Utility Model Content

[0004] The purpose of the utility model is to overcome the potential safety hazard of exposed internal conductors of maintenance switches in the prior art, thereby providing a protective cover for energy storage high-voltage maintenance switches, which is used to protect exposed conductors such as bus bars and bolts, and improve the safety performance of energy storage battery packs.

[0005] In order to solve the above technical problems, the technical solution of the utility model provides a protective cover for an energy storage high-voltage maintenance switch, which is used to cover the rear part of the maintenance switch socket where the bus mounting surface is located, including: a top wall of the protective cover and a side wall of the protective cover; the protective cover is detachably connected to the maintenance switch socket through the side wall of the protective cover; the top wall of the protective cover is provided with: a protruding portion protruding outwardly away from the bus mounting surface, the protruding portion is used to provide a storage space for the signal wiring harness, and has a signal wiring harness opening; a connection part protective cover is provided on the inner side of the top wall of the protective cover, which is used to cover the connection between the bus and the bus mounting surface; the side wall of the protective cover is provided with a bus inlet and outlet.

[0006] Preferably, the detachable connection modes between the side wall of the protective cover and the maintenance switch socket include: interference connection and snap connection.

[0007] Preferably, the top wall of the protective cover has a shape matching the rear part of the maintenance switch socket; and the side walls of the protective cover are arranged perpendicular to the top wall of the protective cover.

[0008] Preferably, the side wall of the protective cover is provided with a notch serving as an inlet and outlet of the bus bar at a corresponding position of at least one corner of the top wall of the protective cover.

[0009] Preferably, the side wall of the protective cover is provided with notches serving as the inlet and outlet of the bus bar at positions corresponding to two adjacent corners of the top wall of the protective cover.

[0010] Preferably, the protective cover is further provided with a limiting member, which is connected to the inner side of the top wall of the protective cover and avoids the corresponding position of the busbar installation surface.

[0011] Preferably, the busbar is connected to the busbar mounting surface via a nut, and the connection portion protective sleeve is used to cover the nut.

[0012] Preferably, the material of the protective cover is: insulating material.

[0013] Preferably, the material of the protective cover is resin material.

[0014] Compared with the prior art, the protective cover for the energy storage high-voltage maintenance switch provided by the utility model has the following advantages:

[0015] 1. It can effectively cover the metal part of the high-voltage busbar to prevent safety accidents such as short circuit and spark during installation.

[0016] 2. It can effectively protect and fix the signal harness, and enhance the strength and service life of the harness.

[0017] 3. It can effectively prevent the busbar mounting nuts from falling off, and has a good protective effect.

[0018] 4. Good insulation performance, which increases the insulation gap and creepage distance of the product and enhances the insulation strength of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the connection between the energy storage high-voltage maintenance switch protective cover and the maintenance switch socket;

[0020] Figure 2 This is a schematic diagram of the energy storage high-voltage maintenance switch protective cover being separated from the maintenance switch socket;

[0021] Figure 3 It is a schematic diagram of the structure of the connecting part protection cover 8 and the limiting member 9.

[0022] Figure ID

[0023] 1. Repair switch plug 2. Repair switch socket 3. Protective cover

[0024] 4. Busbar mounting surface 5. Busbar inlet and outlet 6. Signal harness opening

[0025] 7. Side wall of protective cover 8. Connecting part protective cover 9. Limiting piece DETAILED DESCRIPTION

[0026] The technical solution provided by the utility model is further explained below in conjunction with embodiments.

[0027] Example 1

[0028] The present embodiment provides a protective cover for an energy storage high-voltage maintenance switch. The protective cover is made of a resin material with good insulation performance and high mechanical strength through a molding process.

[0029] like Figure 1 and Figure 2 As shown, the protective cover 3 is used to protect and cover the rear part of the maintenance switch socket 2, that is, the part where the busbar mounting surface 4 is located. In order to simplify the structure of the protective cover 3 and facilitate processing, the protective cover 3 provided in this embodiment has a top wall and a protective cover side wall 7 that surrounds the edge of the top wall and is arranged perpendicular to the plane where the top wall is located. The top wall has a shape that matches the busbar mounting surface 4. In this embodiment, the busbar mounting surface 4 is rectangular, the top wall is also designed to be rectangular, and the projection area of ​​the top wall covers the projection area of ​​the rear part of the maintenance switch socket 2.

[0030] However, in other embodiments, the top wall projection area may be less than or equal to the projection area of ​​the rear of the maintenance switch socket 2, and the side wall 7 of the protective cover may be designed to be inclined relative to the plane where the top wall is located, so that the projection area of ​​the protective cover 3 composed of the side wall 7 of the protective cover and the top wall covers the projection area of ​​the rear of the maintenance switch socket 2. In other embodiments, the top wall of the protective cover 3 may also have a shape different from the rear of the maintenance switch socket 2, and the side wall 7 of the protective cover may have a shape that matches and connects with the edge of the top wall on one side, and a shape that matches and connects with the side wall of the maintenance switch socket 2 on the other side, so that the projection area of ​​the protective cover 3 composed of the side wall 7 of the protective cover and the top wall covers the projection area of ​​the rear of the maintenance switch socket 2.

[0031] The protective cover side wall 7 of the protective cover 3 can be detachably connected to the outer side of the side wall of the maintenance switch socket 2. The detachable connection method can be an interference fit, or a snap connection, or other detachable connection matching methods known to those skilled in the art. When the protective cover 3 is connected to the side wall of the maintenance switch socket 2 through the protective cover side wall 7, the protective cover side wall 7 can ensure that the protective cover 3 is firmly fixed and does not fall off.

[0032] The protective cover side wall 7 is provided with a bus inlet and outlet 5, which is used to reserve the installation position of the high-voltage bus, and its size and shape allow the bus to pass through. After the high-voltage bus is fitted with the mounting surface at the rear of the maintenance switch socket 2, it is fastened with nuts. The bus passes through the bus inlet and outlet 5 of the protective cover side wall 7 of this protective cover 3. In order to facilitate the arrangement of the bus and simplify the processing flow of the protective cover 3, in this embodiment, the protective cover side wall 7 corresponding to the corner of the top wall of the protective cover 3 is provided with a bus inlet and outlet 5. Figure 3As shown, two bus inlets and outlets 5 can be provided, respectively located at two adjacent corners. The provided bus inlets and outlets 5 disconnect the protective cover side walls 7 of the adjacent sides, that is, the protective cover side walls 7 have a notch at the corner of the top wall of the protective cover 3, which serves as the bus inlet and outlet 5. However, in other embodiments, the bus inlet and outlet 5 can also be provided at other positions, and the provision form can also be a through hole.

[0033] like Figure 2 As shown, the top wall of the protective cover 3 is provided with a protrusion protruding outwardly away from the busbar mounting surface 4, and the protrusion can leave a space for accommodating the low-voltage signal harness; the protrusion is provided with a signal harness opening 6 for connecting the low-voltage signal harness to the outside. In this embodiment, the protrusion extends between the two side walls opposite to the top wall of the protective cover 3, and the overall shape is a rectangular parallelepiped. This design is convenient for processing; however, in other embodiments, the protrusion can also be other shapes. In this embodiment, the signal harness opening 6 is set in the center or near the center of the top wall of the protective cover 3.

[0034] like Figure 3 As shown, a protective cover 8 with a nut accommodating space is provided inside the top wall of the protective cover 3 to completely cover the nut for installing the busbar, which can prevent the nut from falling off and also provide insulation protection. The setting position of the protective cover 8 corresponds to the position of the nut. For ease of understanding, Figure 3 Only two protective sleeves 8 of nuts are shown. However, in practical applications, the number and installation positions of the protective sleeves 8 can be designed according to the actual number and positions of the nuts.

[0035] like Figure 3 As shown, a limiting member 9 is also provided on the inner side of the top wall of the protective cover 3. When the protective cover 3 is installed on the maintenance switch socket 2, the limiting member 9 is installed in place when it reaches the rear of the socket. In this way, the protective cover 3 body can be prevented from being damaged during installation, and cracking and the like can be avoided.

[0036] When installing the energy storage high-voltage maintenance switch protective cover provided in this embodiment, the installation steps are as follows:

[0037] Place the two busbars on the mounting surface at the rear of the maintenance switch socket 2 (the through holes of the busbars are passed through the studs on the mounting surface and tightened with nuts of corresponding specifications. According to the installation direction of the busbars, buckle the protective cover 3 on the rear of the maintenance switch socket 2 and completely cover the mounting nuts and the busbars. After confirming that the signal harness passes through the signal harness opening 6 of the protective cover 3, the installation of the protective cover 3 is completed.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not intended to limit it. Although the utility model is described in detail with reference to the embodiments, a person skilled in the art should understand that any modification or equivalent replacement of the technical solution of the utility model does not deviate from the spirit and scope of the technical solution of the utility model, and should be included in the scope of the claims of the utility model.

Claims

1. A protective cover for an energy storage high voltage maintenance switch, characterized in that: The protective cover is used to cover the rear part of the maintenance switch socket where the busbar installation surface is located, and includes: a protective cover top wall and a protective cover side wall; the protective cover is detachably connected to the maintenance switch socket through the protective cover side wall; The top wall of the protective cover is provided with: a protrusion protruding outwardly away from the busbar mounting surface, the protrusion is used to provide a receiving space for the signal harness, and has a signal harness opening; a connection portion protective cover is provided on the inner side of the top wall of the protective cover, which is used to cover the connection between the busbar and the busbar mounting surface; The side wall of the protective cover is provided with a bus inlet and outlet.

2. The protective cover for the energy storage high voltage maintenance switch according to claim 1, characterized in that: The detachable connection modes between the side wall of the protective cover and the maintenance switch socket include: interference connection and snap connection.

3. The protective cover for the energy storage high voltage maintenance switch according to claim 1, characterized in that: The top wall of the protective cover has a shape matching the rear part of the maintenance switch socket; the side walls of the protective cover are arranged perpendicular to the top wall of the protective cover.

4. The protective cover for the energy storage high voltage maintenance switch according to claim 1, characterized in that: The side wall of the protective cover is provided with a notch serving as an inlet and outlet of the bus bar at a corresponding position of at least one corner of the top wall of the protective cover.

5. The protective cover for the energy storage high voltage maintenance switch according to claim 1, characterized in that: The side wall of the protective cover is provided with notches serving as the inlet and outlet of the bus bar at positions corresponding to two adjacent corners of the top wall of the protective cover.

6. The protective cover for the energy storage high voltage maintenance switch according to claim 1, characterized in that: The protective cover is also provided with a limiting member, which is connected to the inner side of the top wall of the protective cover and avoids the corresponding position of the busbar installation surface.

7. The protective cover for the energy storage high voltage maintenance switch according to claim 1, characterized in that: The busbar is connected to the busbar mounting surface via a nut, and the connection portion protective sleeve is used to cover the nut.

8. The protective cover for the energy storage high voltage maintenance switch according to claim 1, characterized in that: The material of the protective cover is: insulating material.

9. The protective cover for the energy storage high voltage maintenance switch according to claim 1, characterized in that: The material of the protective cover is resin material.

Images