Improved lithium battery outer box

Abstract

The utility model discloses an improved lithium battery outer box which comprises an electric box, and an upper cover, a national standard charging seat, a wiring plug-in and a sealing waterproof structure which are arranged on the electric box. And a connecting box body is arranged on the upper cover. And the inner cavity of the connecting box body is communicated with the inner cavity of the electric box. The connecting box body is provided with an insertion hole position matched with the sealing waterproof structure. The sealing waterproof structure is detachably fixed on the inner side of the plugging hole site. The national standard charging seat and the wiring plug-in are respectively installed at two ends of the sealing waterproof structure and are connected through a lead. According to the utility model, the sealing waterproof structure is arranged to surround and seal the joint of the national standard charging seat and the wiring plug-in, so that water vapor in external air is prevented from entering the electric box through the national standard charging seat to damage components in the electric box.

Description

Technical Field

[0001] This utility model belongs to the field of battery system outer casing technology, specifically relating to an improved lithium battery outer casing. Background Technology

[0002] like Figure 1 As shown, domestically manufactured and used lithium battery casings typically consist of an electrical box, a top cover, a maintenance cover, charging connectors, and discharging connectors. The top cover has mounting brackets for installing the charging and discharging connectors. The charging and discharging connectors are embedded and fixed in corresponding holes within the mounting brackets.

[0003] The charging connectors in this type of structure generally use national standard charging sockets, which can meet the needs of most working environments. However, in high-humidity working environments, water vapor in the air can enter the box through the national standard charging socket, and condensation will form inside the box over time. The condensation will corrode the various components inside the box, leading to damage to the lithium battery system.

[0004] Therefore, there is an urgent need to design a lithium battery casing that can solve the problem of water vapor in the outside air entering the casing and damaging the components inside. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, this utility model provides an improved lithium battery casing to solve the technical problem that water vapor in the outside air can easily enter the casing and damage the components inside.

[0006] To achieve the above objectives, the specific technical solution of this utility model is as follows:

[0007] An improved lithium battery casing includes an electrical box, a top cover mounted on the electrical box, a national standard charging socket, wiring plugs, and a sealed waterproof structure. The top cover has a connecting housing. The inner cavity of the connecting housing communicates with the inner cavity of the electrical box.

[0008] The connecting housing has insertion holes that mate with the sealed and waterproof structure. The sealed and waterproof structure is detachably fixed inside the insertion holes. The national standard charging base and the wiring plug are respectively installed at both ends of the sealed and waterproof structure and are connected by a wire.

[0009] Furthermore, the sealing and waterproof structure includes a waterproof base body and a first sealing strip. The outer wall of the waterproof base body has an installation edge. The installation edge is fixed to the connecting housing by bolts. The first sealing strip is disposed between the installation edge and the inner wall of the connecting housing.

[0010] Furthermore, the waterproof base body is a shell structure. Both ends of the waterproof base body have charging base connection holes and connector connection holes, respectively, for mates with the national standard charging base and wiring plug. The national standard charging base and wiring plug are respectively embedded in the charging base connection holes and connector connection holes, and are fixed with bolts.

[0011] Furthermore, a maintenance port is provided on the top of the waterproof base body. The maintenance port is equipped with a cover that is fixed by bolts.

[0012] Furthermore, a second sealing strip is provided between the cover and the waterproof seat body.

[0013] Furthermore, the connecting housing is a shell structure with an open top and bottom. A maintenance cover, secured with bolts, is provided on the top of the connecting housing.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. This utility model forms a sealed enclosure at the connection between the national standard charging base and the wiring plug by setting a sealed and waterproof structure, which prevents water vapor in the outside air from entering the electrical box through the national standard charging base and causing damage to the components inside the electrical box.

[0016] 2. By setting a first sealing strip at the junction of the waterproof seat body and the connecting box in the sealed and waterproof structure, this utility model can further prevent water vapor in the outside air from entering the electrical box through the gap between the plug hole on the connecting box and the waterproof seat body, and thus preventing damage to the components inside the electrical box. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a lithium battery casing in the prior art;

[0018] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the sealing and waterproof structure in this utility model. Figure 2 (Enlarged view of part A in the middle)

[0020] Figure 4 This is an exploded view of the sealing and waterproof structure in this utility model.

[0021] Attached reference numerals: 1. Electrical box; 2. Top cover; 3. Maintenance cover; 4. National standard charging base; 5. Wiring plug; 6. Sealed and waterproof structure; 6-1. Waterproof base body; 6-2. First sealing strip; 6-3. Mounting edge; 6-4. Maintenance port; 6-5. Cover; 6-6. Second sealing strip; 7. Connecting box; 8. Wire; 9. Discharge connector. Detailed Implementation

[0022] In the description of this utility model, it should be understood that the terms "one end", "the other end", "outer side", "upper side", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] like Figure 2 As shown, an improved lithium battery casing includes a battery box 1, and a top cover 2, a maintenance cover 3, a national standard charging socket 4, wiring plugs 5, and a sealed waterproof structure 6 mounted on the battery box 1. The top cover 2 has a connecting housing 7 for mounting the national standard charging socket 4 and wiring plugs 5. The connecting housing 7 is an open-top and open-bottom shell structure, and its inner cavity is connected to the inner cavity of the battery box 1. The maintenance cover 3 is bolted to the top of the connecting housing 7 and can be disassembled during maintenance, facilitating the replacement and repair of components inside the battery box 1.

[0025] like Figure 2 and 3 As shown, the connecting housing 7 has insertion holes that mate with the sealing and waterproof structure 6. The inner end of the sealing and waterproof structure 6 is embedded in the insertion hole and is detachably fixed to the connecting housing 7 by bolts. The national standard charging base 4 and the wiring plug 5 are respectively installed at both ends of the waterproof base body 6-1 and are connected by a wire 8. The sealing and waterproof structure 6 forms a surrounding seal at the connection between the national standard charging base 4 and the wiring plug 5, preventing water vapor in the outside air from entering the electrical box 1 through the national standard charging base 4 and damaging the components inside the electrical box 1.

[0026] The specific structure is as follows: Figure 3 and 4 As shown, the sealed and waterproof structure 6 includes a waterproof base body 6-1 and a first sealing strip 6-2. The outer wall of the waterproof base body 6-1 has an integrally formed mounting edge 6-3. During assembly, the waterproof base body 6-1 is embedded in the insertion hole, and the mounting edge 6-3 on the waterproof base body 6-1 abuts against the inner wall of the connecting box 7. A waterproof nut is provided on the mounting edge 6-3, which can cooperate with the bolts on the connecting box 7 to fix the waterproof base body 6-1. The first sealing strip 6-2 is located between the mounting edge 6-3 and the inner wall of the connecting box 7, effectively preventing water vapor from the outside air from entering the electrical box 1 through the gap between the insertion hole and the waterproof base body 6-1.

[0027] In this embodiment, the waterproof base body 6-1 is a shell structure. Both ends of the waterproof base body 6-1 are respectively provided with a charging base connection hole and a connector connection hole for mates with the national standard charging base 4 and the wiring plug 5; the national standard charging base 4 and the wiring plug 5 are respectively embedded in the charging base connection hole and the connector connection hole, and are fixed by bolts.

[0028] Furthermore, a maintenance port 6-4 is provided on the top of the waterproof base body 6-1. A cover 6-5, secured with bolts, is provided on the maintenance port 6-4. In actual use, operators can remove the cover 6-5 to connect the wire 8 between the national standard charging socket 4 and the wiring plug 5 inside the waterproof base body 6-1.

[0029] Furthermore, a second sealing strip 6-6 is provided between the cover 6-5 and the waterproof base body 6-1. The second sealing strip 6-6 is used to prevent water vapor entering the waterproof base body 6-1 through the gap between the waterproof base body 6-1 and the national standard charging base 4 from entering the electrical box 1, further avoiding damage to the components in the electrical box 1 caused by condensation formed by water vapor.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An improved lithium battery outer box, comprising an electric box (1), and an upper cover (2), a national standard charging seat (4), and a wiring plug-in (5) installed on the electric box (1); a connecting box (7) is arranged on the upper cover (2); the inner cavity of the connecting box (7) is communicated with the inner cavity of the electric box (1), characterized in that: Also include sealed waterproof structure (6); ​ The connecting box (7) is provided with a plug hole position matched with the sealed waterproof structure (6); the sealed waterproof structure (6) can be detachably fixed inside the plug hole position; the national standard charging seat (4) and the wiring plug-in (5) are respectively installed at both ends of the sealed waterproof structure (6), and are connected by wires (8) therebetween; The sealed waterproof structure (6) includes a waterproof seat body (6-1) and a first sealing strip (6-2); the outer wall of the waterproof seat body (6-1) is provided with a mounting edge (6-3); the mounting edge (6-3) is fixed in the connecting box (7) by bolts; the first sealing strip (6-2) is arranged between the mounting edge (6-3) and the inner wall of the connecting box (7); The waterproof seat body (6-1) is a shell structure; the both ends of the waterproof seat body (6-1) are respectively provided with a charging seat connecting hole and a plug-in connecting hole matched with the national standard charging seat (4) and the wiring plug-in (5); the national standard charging seat (4) and the wiring plug-in (5) are respectively embedded in the charging seat connecting hole and the plug-in connecting hole, and are fixed by bolts; The top of the waterproof seat body (6-1) is provided with a maintenance port (6-4); the maintenance port (6-4) is provided with a cover (6-5) fixed by bolts; The cover (6-5) and the waterproof seat body (6-1) are provided with a second sealing strip (6-6); The connecting box (7) is a shell structure with open top and bottom; the top of the connecting box (7) is provided with a maintenance cover (3) fixed by bolts.

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