Anti-explosion cover structure

Abstract

The utility model discloses an explosion-proof cover structure which comprises an explosion-proof cover, a cup body is further arranged at the lower end of the explosion-proof cover, a frame is further arranged between the explosion-proof cover and the cup body, the explosion-proof cover is installed on the upper surface of the frame, the explosion-proof cover is connected with the cup body in a winding welding mode, and the cup body is connected with the explosion-proof cover. And the upper part of the explosion-proof cover is also provided with a colloid layer. Compared with the prior art, the explosion-proof cover is simple in structure, and the safety and the stability of the contactor are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to high -voltage direct current contactor technical field especially relates to a blast -proof cover structure. BACKGROUND

[0002] With the rapid development of modern electric power technology, high-voltage direct current system has been widely applied in many fields, such as electric vehicle, new energy power generation, direct current transmission and distribution etc.In these high-voltage direct current systems, high-voltage direct current contactor as a kind of key control and protection element, plays a vital role.

[0003] Compared with traditional alternating current transmission and distribution system, direct current transmission and distribution has many advantages such as small power transmission loss, high power quality, easy new energy access etc.In direct current transmission and distribution network, high-voltage direct current contactor is used for line switching, load switching and rapid isolation during fault operation etc.For example, in urban direct current distribution network, high-voltage direct current contactor can realize flexible control to different areas and different loads, improve the reliability and power supply quality of distribution network.However, the complex operating conditions of direct current transmission and distribution system, such as frequent load fluctuation, large current impact during short-circuit fault etc., put high requirements on the electrical and mechanical properties of high-voltage direct current contactor.

[0004] In the prior art, the explosion-proof cover is easy to fall off after being stressed, and when the internal air pressure is too large, it is easy to cause explosion, which is unsafe and has poor reliability during use.

[0005] Therefore, the utility model needs to provide a blast -proof structure that greatly improves the safety and stability of the contactor. UTILITY MODEL CONTENT

[0006] The utility model aims at providing a blast -proof structure to solve the foregoing problems existing in the prior art.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0008] A blast -proof cover structure, comprising: explosion -proof cover, the lower end of the explosion -proof cover is also equipped with cup body, the explosion -proof cover and the cup body between still are equipped with frame, the explosion -proof cover is installed on the upper surface of the frame, the explosion -proof cover and the cup body are connected through the mode of round welding, the upper portion of the explosion -proof cover is also equipped with colloid layer.

[0009] Further, the cup body is a hollow cylindrical shape.

[0010] Further, the upper portion of the frame is also equipped with a plurality of convex columns, and a mounting hole is arranged at a position corresponding to the explosion -proof cover, and the mounting hole is matched with the convex column.

[0011] Furthermore, the upper part of the frame is provided with holes for installing lead-out ends.

[0012] Furthermore, the cup body is fitted onto the contactor body and connected and fixed by welding.

[0013] Furthermore, the cup body is made of metal.

[0014] Furthermore, there is a distance between the upper end of the cup body and the upper part of the explosion-proof cover, so that the explosion-proof cover sinks down.

[0015] Furthermore, the explosion-proof cover and the frame are circular in shape.

[0016] The beneficial effects of this utility model are:

[0017] Because this utility model has a cup body at the lower end of the explosion-proof cover, the lower end of the cup body is welded to the contactor body during assembly. In addition, the explosion-proof cover is fixed to the frame, and the outer edges of the explosion-proof cover and the frame are welded to the inner surface of the cup body. This ensures that the explosion-proof cover can be fixedly connected to the cup body, preventing the explosion-proof cover from falling off due to high internal air pressure in the contactor. This greatly improves the pressure resistance of the cavity, ensuring that it will not explode when the internal pressure reaches a certain level, thus greatly guaranteeing the safety of the product during use. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of the explosion-proof cover of this utility model.

[0019] Figure label:

[0020] Explosion-proof cover 1, cup body 2, frame 3, protruding post 4, hole 5. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0022] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model or 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] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0025] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0026] like Figure 1 As shown, an explosion-proof cover structure includes: an explosion-proof cover 1, a cup body 2 at the lower end of the explosion-proof cover 1, a frame 3 between the explosion-proof cover 1 and the cup body 2, the explosion-proof cover 1 being installed on the upper surface of the frame 2, the explosion-proof cover 1 being connected to the cup body 2 by a circular welding method, and an adhesive layer being provided on the upper part of the explosion-proof cover 1.

[0027] As can be seen from the above, since the present invention has a cup body 2 at the lower end of the explosion-proof cover 1, during assembly, the lower end of the cup body 2 is welded to the contactor body. In addition, the explosion-proof cover 1 is fixed with the frame 3, and the outer edges of the explosion-proof cover 1 and the frame 3 are welded to the inner surface of the cup body 2 to ensure that the explosion-proof cover 1 can be fixedly connected to the cup body 2, avoiding the explosion-proof cover 1 from falling off due to the high air pressure inside the contactor. This can greatly improve the pressure resistance of the cavity, so that it will not explode when the pressure inside the cavity reaches a certain level, thus greatly ensuring the safety of the product during use.

[0028] Specifically, the cup body 2 is a hollow cylinder. Because the cup body 2 is a hollow cylinder, the explosion-proof cover of this utility model can be placed on the contactor body, thereby increasing the contact area between the explosion-proof cover and the contactor body, and thus increasing the strength between them. This greatly improves the pressure that the cavity can withstand, so that it will not explode when the pressure inside the cavity reaches a certain level, thus greatly ensuring the safety of the product during use.

[0029] To increase the connection strength between the frame 3 and the explosion-proof cover 1, the upper part of the frame 3 is also provided with a plurality of protruding posts 4. In this embodiment, there are two protruding posts 4. There are also two mounting holes corresponding to the position of the explosion-proof cover 1. The mounting holes cooperate with the protruding posts 4.

[0030] Additionally, it should be noted that the upper part of the frame 3 is also provided with a hole 5 for installing the lead-out end, through which the lead-out end extends to the other side of the hole.

[0031] In addition, it should be noted that the cup body 2 is fitted onto the contactor body and is connected and fixed by welding, which ensures that the cup body 2 can be connected to the contactor body and extends the service life of the product.

[0032] The cup body 2 is made of metal. In this embodiment, iron is preferred as it is easy to weld. In addition, the use of a circumferential welding process increases the welding strength and prevents the explosion-proof cover from falling off due to excessive air pressure inside the cavity.

[0033] Furthermore, the upper end of the cup body 2 is spaced from the upper part of the explosion-proof cover, allowing the explosion-proof cover to sink. This allows for the application of adhesive to the upper part of the explosion-proof cover, forming an adhesive layer. The explosion-proof cover 1 is then embedded in the adhesive layer, which provides reinforcement. This enables the high-voltage DC contactor to withstand greater pressure during operation, preventing the frame from detaching from the iron cup and breaking through the adhesive layer due to insufficient load-bearing capacity. This significantly improves safety and stability.

[0034] In order to fit together with the main body, the explosion-proof cover 2 and the frame 3 are circular in shape.

[0035] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An explosion-proof cover structure, characterized in that, include: An explosion-proof cover is provided, and a cup body is provided at the lower end of the explosion-proof cover. A frame is provided between the explosion-proof cover and the cup body. The explosion-proof cover is installed on the upper surface of the frame. The explosion-proof cover and the cup body are connected by a circular welding method. An adhesive layer is provided on the upper part of the explosion-proof cover.

2. The explosion-proof cover structure according to claim 1, characterized in that: The cup body is a hollow cylinder.

3. The explosion-proof cover structure according to claim 1, characterized in that: The upper part of the frame is also provided with multiple protruding posts, and mounting holes are provided corresponding to the positions of the explosion-proof cover. The mounting holes cooperate with the protruding posts.

4. The explosion-proof cover structure according to claim 3, characterized in that: The upper part of the frame is also provided with holes for installing lead-out ends.

5. The explosion-proof cover structure according to claim 2, characterized in that: The cup body is fitted onto the contactor body and connected and fixed by welding.

6. The explosion-proof cover structure according to claim 3, characterized in that: The cup body is made of metal.

7. The explosion-proof cover structure according to claim 1, characterized in that: The upper end of the cup body is spaced apart from the upper part of the explosion-proof cover, allowing the explosion-proof cover to sink down.

8. The explosion-proof cover structure according to claim 1, characterized in that: The explosion-proof cover and the frame are circular in shape.

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