Explosion-proof device for outdoor energy storage cabinet

Abstract

The utility model discloses an outdoor energy storage cabinet explosion-proof device which comprises a cabinet body, the top of the cabinet body is provided with an opening, the opening is covered with an explosion-proof door, one side of the explosion-proof door is hinged and matched with a top plate, the other three sides of the explosion-proof door are provided with fastening holes matched with fasteners to be assembled with the top plate, and a circle of annular discontinuous holes are formed around the fastening holes. The explosion-proof pressure relief valve is simple in structure and easy to achieve the explosion-proof pressure relief purpose. By optimizing the connection mode of the explosion-proof door and the cabinet body, the fastening hole is formed in the edge of the explosion-proof door to be matched with the fastening bolt to be assembled with the cabinet body, and the circle of discontinuous annular holes are formed in the periphery of the fastening hole, when thermal runaway happens to a battery cell, a large amount of gas is generated in the cabinet body, the internal pressure is increased, and when the pressure is increased to a certain value, the explosion-proof door is opened. The discontinuous holes are fractured, the sealing of the explosion-proof door fails, gas is released, and the purposes of explosion prevention and pressure relief are achieved; meanwhile, the hinge can prevent the explosion door from flying out to cause damage.

Description

Technical Field

[0001] This utility model belongs to the field of electrical equipment technology, specifically relating to an explosion-proof device for an outdoor energy storage cabinet. Background Technology

[0002] The battery packs in energy storage cabinets contain a large amount of chemical substances, which generate a significant amount of gas and liquid during charging and discharging. If a cell experiences thermal runaway, it will release a large amount of gas in a short period of time, requiring rapid venting to prevent an explosion. The conventional solution is to install explosion-proof pressure relief valves, which are not only complex but also costly. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, the purpose of this utility model is to provide an explosion-proof device for outdoor energy storage cabinets, so as to achieve a low-cost and easily achievable explosion-proof and pressure relief effect for outdoor energy storage cabinets.

[0004] The technical problem solved by this utility model can be achieved by the following technical solution:

[0005] An explosion-proof device for an outdoor energy storage cabinet includes a cabinet body with an opening at the top. An explosion-proof door is installed over the opening. One side of the explosion-proof door is hinged to the cabinet body, and the other three sides are provided with fastening holes to accommodate fasteners for assembly with the cabinet body. A ring of discontinuous holes is formed around the fastening holes.

[0006] Furthermore, one side of the explosion-proof door is hinged to the cabinet via a hinge.

[0007] Furthermore, the opening is a square frame that runs vertically through the frame. The top of the side wall of the square frame extends outward to form a top edge, which abuts against the explosion-proof door, and a sealing ring is provided between the two.

[0008] Furthermore, the explosion-proof door cover is installed on the square frame, and the side wall of the explosion-proof door without hinges extends outward to form an edge, which is assembled with the cabinet.

[0009] Furthermore, at least two fastening holes are provided at intervals along each side to assemble the fasteners with the mounting holes provided on the top plate.

[0010] Furthermore, a lifting ring is provided on the top of the cabinet around the explosion-proof door.

[0011] Compared with existing technologies, this utility model has the following advantages: The structure of this application is simple and easily achieves the purpose of explosion-proof pressure relief. By optimizing the connection method between the explosion-proof door and the cabinet (i.e., one side of the explosion-proof door is connected to the cabinet via a hinge, and the other three sides are assembled via fastening bolts), fastening holes are provided along the edge of the explosion-proof door to accommodate the fastening bolts and assemble it with the cabinet. Furthermore, a discontinuous annular hole is provided around the fastening hole. When the battery cell experiences thermal runaway, a large amount of gas is generated inside the cabinet, increasing its internal pressure. When the pressure increases to a certain value, the discontinuous hole breaks, the explosion-proof door seal fails, and the gas is released, achieving the purpose of explosion-proof pressure relief. Simultaneously, the hinge prevents the explosion-proof door from flying out and causing injury. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a top view of the structure of this utility model;

[0014] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0015] Figure 4 This is a cross-sectional view of the present invention.

[0016] In the diagram: 1-cabinet, 11-opening, 12-top edge, 2-explosion-proof door, 21-edge, 3-annular discontinuous hole, 4-sealing ring, 5-lifting ring, 6-hinge. Detailed Implementation

[0017] To enable those skilled in the art to more clearly understand the technical solution of this application, the present invention will be further described below in conjunction with the accompanying drawings.

[0018] like Figures 1-4 The embodiment shown includes an explosion-proof device for an outdoor energy storage cabinet, comprising a cabinet body 1, an opening 11 at the top of the cabinet body 1, an explosion-proof door 2 covering the opening 11, one side of the explosion-proof door 2 being hinged to the cabinet body 1, and fastening holes on the other three sides for fasteners to be assembled with the cabinet body 1, and a ring of discontinuous holes 3 being formed around the fastening holes.

[0019] Specifically, the opening 11 is a square frame that runs vertically through the top and bottom. The top of the side wall of the square frame extends outward to form a top edge 12. The top edge 12 abuts against the explosion-proof door 2, and a sealing ring 4 is provided between the two to ensure the airtightness of the cabinet 1.

[0020] An explosion-proof door 2 is mounted on a square frame. One side wall of the explosion-proof door 2 is hinged to the cabinet 1 via a hinge 6. The other three side walls of the explosion-proof door 2, which are not hinged to the door 2, extend outward to form edges 21, which are assembled with the cabinet 1. In this embodiment, at least two fastening holes are provided at intervals on each edge 21 to mate with fasteners and mounting holes provided on the top plate 1. Fasteners can be selected from bolts or screws.

[0021] In addition, to facilitate the hoisting and movement of cabinet 1, a lifting ring 5 is installed around the explosion-proof door 2 on the top of cabinet 1.

[0022] In use, the explosion-proof door 2 is sealed to the cabinet 1 by the sealing ring 4. A ring of discontinuous holes 3 is opened outside the fastening holes along the edge 21 of the explosion-proof door 2. When the battery cell experiences thermal runaway, a large amount of gas is generated inside the cabinet 1, which increases the internal pressure of the cabinet 1. When the pressure increases to a certain value, the ring of discontinuous holes 3 breaks, the seal of the explosion-proof door 2 fails, and the gas is released, achieving the purpose of explosion-proof pressure relief. The hinge 6 can prevent the explosion-proof door 2 from flying out and causing injury.

[0023] 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 explosion-proof device for an outdoor energy storage cabinet, comprising a cabinet body (1), characterized in that, The cabinet (1) has an opening (11) at the top, and an explosion-proof door (2) is installed on the opening (11). One side of the explosion-proof door (2) is hinged to the cabinet (1), and the other three sides are provided with fastening holes to fit fasteners and assemble with the cabinet (1). A ring of discontinuous holes (3) is opened around the fastening holes.

2. The explosion-proof device for an outdoor energy storage cabinet according to claim 1, characterized in that, One side of the explosion-proof door (2) is hinged to the cabinet (1) via a hinge (6).

3. The explosion-proof device for an outdoor energy storage cabinet according to claim 2, characterized in that, The opening (11) is a square frame that runs vertically through the top and bottom. The top of the side wall of the square frame extends outward to form a top edge (12). The top edge (12) abuts against the explosion-proof door (2), and a sealing ring (4) is provided between the two.

4. The explosion-proof device for an outdoor energy storage cabinet according to claim 3, characterized in that, The explosion-proof door (2) is mounted on the square frame. The side wall of the explosion-proof door (2) without hinges (6) extends outward to form an edge (21), which is assembled with the cabinet (1).

5. The explosion-proof device for an outdoor energy storage cabinet according to claim 4, characterized in that, At least two fastening holes are provided at intervals on each side of the edge (21) to cooperate with fasteners to be assembled with the mounting holes provided on the cabinet (1).

6. An explosion-proof device for an outdoor energy storage cabinet according to any one of claims 1-5, characterized in that, A lifting ring (5) is installed on the top of the cabinet (1) around the explosion-proof door (2).

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