A stepped heat dissipation stationary contact structure

Abstract

The utility model provides a kind of stepped heat dissipation static contact structure, it is related to static contact structure technical field. Including static contact body, the static contact body is provided with auxiliary heat dissipation structure, the auxiliary heat dissipation structure includes radiating fin, the inner wall of the radiating fin and static contact body is fixedly connected, the quantity of the radiating fin is several, several the radiating fin is equidistant arrangement along the circumferential direction of static contact body, by setting auxiliary heat dissipation structure, under the action of L-shaped contact plate, can cooperate radiating fin and carry out auxiliary heat dissipation to the inside of static contact body, while can under the action of annular plate and auxiliary fin plate, can carry out auxiliary heat dissipation to the outer surface of static contact body, then can under the action of round jack, cooperate radiating round hole and carry out heat dissipation to the bottom of static contact body, then can be inside and outside, from top to bottom stepped heat dissipation, avoid temperature excessively high and accelerate the aging speed of static contact body.

Description

Technical Field

[0001] This utility model relates to the field of stationary contact structure technology, and in particular to a stepped heat dissipation stationary contact structure. Background Technology

[0002] Stationary contacts refer to the contacts of switches, relays, and contactors that do not move with the actuator. They are also called stationary contacts and are configured in pairs with movable contacts. The connection and disconnection of the circuit are achieved by the contact or separation of the two.

[0003] In practical applications, the existing stationary contact structure has relatively complete functions and structure, which can meet basic usage requirements, but the following problems still exist: During the contact between the stationary and moving contacts, current is generated, which produces heat on the stationary contact. This accelerates the aging of the stationary contact, requiring frequent replacement and increasing its operating cost.

[0004] Therefore, this utility model provides a stepped heat dissipation static contact structure. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a stepped heat dissipation static contact structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a stepped heat dissipation stationary contact structure, comprising a stationary contact body, wherein the stationary contact body is provided with an auxiliary heat dissipation structure, the auxiliary heat dissipation structure comprising heat dissipation fins, the heat dissipation fins being fixedly connected to the inner wall of the stationary contact body, the number of heat dissipation fins being several, the several heat dissipation fins being arranged at equal intervals along the circumferential direction of the stationary contact body, one side of the heat dissipation fins being located outside the stationary contact body, the other side of the heat dissipation fins being located inside the stationary contact body, and a disassembly and dustproof structure being provided at the bottom of the stationary contact body, the disassembly and dustproof structure comprising a circular slot, the circular slot being formed at the bottom of the stationary contact body.

[0007] In a preferred embodiment, an L-shaped contact plate is fixedly connected to one side of the heat dissipation fins inside the stationary contact body. Heat dissipation holes are provided on the portion of the heat dissipation fins outside the stationary contact body. A circular insertion hole is provided on the inner wall of the stationary contact body, penetrating the inner wall of the stationary contact body. An annular plate is fixedly connected to the bottom of the stationary contact body, and an auxiliary fin is fixedly connected to the top of the annular plate. The auxiliary fin is arranged alternately with the heat dissipation fins. A heat dissipation circular hole is provided on the inner wall of the circular insertion hole, penetrating the side wall of the stationary contact body.

[0008] The technical effect of adopting the above-mentioned further solution is as follows: under the action of heat dissipation fins, the contact surface of heat inside the stationary contact body can be increased. Then, with the help of auxiliary fins and other structures, heat can be dissipated to the outside of the stationary contact body through the heat dissipation fins. In addition, external heat dissipation holes can be used to assist in heat dissipation. The principle is to expand the heat dissipation contact area. At the same time, under the action of the circular insertion hole, heat dissipation holes can be used to assist in heat dissipation. At the same time, under the action of the annular plate, heat on the outer surface of the stationary contact body can be dissipated. Thus, under the above-mentioned heat dissipation effect, heat dissipation can be carried out in a stepped manner from the inside to the outside and from the top to the bottom.

[0009] In a preferred embodiment, a circular block is engaged with the inner wall of the circular slot, a circular baffle is fixedly connected to the bottom of the circular block, an auxiliary circular hole is provided on the inner wall of the circular baffle, a circular insert is fixedly connected to the top of the circular baffle, and the bottom of the circular insert communicates with the auxiliary circular hole.

[0010] The technical effect of adopting the above-mentioned further solution is that, under the action of the circular locking block, the circular baffle can be disassembled and assembled, so that the circular baffle can work with the circular insert to prevent dust from entering the inner wall of the circular insert hole, and the circular baffle and other components can be replaced in a timely manner according to the dust adhesion.

[0011] In a preferred embodiment, the side wall of the cylindrical insert is provided with heat dissipation auxiliary holes.

[0012] The technical effect of adopting the above-mentioned further solution is that, under the action of the heat dissipation auxiliary hole, the round plug can be prevented from affecting the heat dissipation inside the round plug hole, so that the heat dissipation auxiliary hole can be aligned with the heat dissipation round hole to assist in heat dissipation.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows: By setting up an auxiliary heat dissipation structure, the L-shaped contact plate, in conjunction with the heat dissipation fins, can provide auxiliary heat dissipation for the interior of the stationary contact body. At the same time, the annular plate and auxiliary fins can provide auxiliary heat dissipation for the outer surface of the stationary contact body. Furthermore, the circular insertion hole, in conjunction with the heat dissipation holes, can dissipate heat from the bottom of the stationary contact body. This allows for stepped heat dissipation from the inside out and from top to bottom, preventing excessive temperature from accelerating the aging of the stationary contact body. By setting up a disassembly and dustproof structure, the circular insertion cylinder and circular baffle can be disassembled and assembled with the help of circular slots and circular blocks, thus preventing dust from the bottom and allowing for timely replacement, which is very convenient. Attached Figure Description

[0014] Figure 1 A schematic diagram of a stepped heat dissipation static contact structure provided by this utility model; Figure 2A schematic diagram of the heat dissipation fins of a stepped heat dissipation static contact structure provided by this utility model; Figure 3 A schematic diagram of the annular plate of a stepped heat dissipation static contact structure provided by this utility model; Figure 4 A schematic diagram of the circular insert section of a stepped heat dissipation static contact structure provided by this utility model.

[0015] Legend: 1. Static contact head body; 2. Auxiliary heat dissipation structure; 21. Heat dissipation fins; 22. L-shaped contact plate; 23. Heat dissipation holes; 24. Round insertion holes; 25. Annular plate; 26. Auxiliary fin plate; 27. Heat dissipation round holes; 3. Disassembly and assembly of dustproof structure; 31. Circular slot; 32. Circular block; 33. Circular baffle; 34. Circular insert; 35. Auxiliary circular hole; 36. Auxiliary heat dissipation hole. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figures 1-4As shown, this embodiment provides a technical solution: a stepped heat dissipation stationary contact structure, including a stationary contact body 1, an auxiliary heat dissipation structure 2, and a heat dissipation fin 21. The heat dissipation fin 21 is fixedly connected to the inner wall of the stationary contact body 1. The number of heat dissipation fins 21 is several, and these fins are arranged equidistantly along the circumference of the stationary contact body 1. One side of each heat dissipation fin 21 is located outside the stationary contact body 1, and the other side is located inside the stationary contact body 1. A detachable dustproof structure 3 is provided at the bottom of the stationary contact body 1. The detachable dustproof structure 3 includes a circular slot 31, which is formed at the bottom of the stationary contact body 1. By providing the auxiliary heat dissipation structure... Structure 2, under the action of the L-shaped contact plate 22, can work with the heat dissipation fins 21 to assist in heat dissipation of the interior of the stationary contact body 1. At the same time, under the action of the annular plate 25 and the auxiliary fin plate 26, it can assist in heat dissipation of the outer surface of the stationary contact body 1. Furthermore, under the action of the circular insertion hole 24, it can work with the heat dissipation circular hole 27 to dissipate heat from the bottom of the stationary contact body 1. Thus, it can achieve stepped heat dissipation from the inside out and from top to bottom, avoiding excessive temperature and accelerating the aging speed of the stationary contact body 1. By setting up the disassembly and dustproof structure 3, under the action of the circular slot 31 and the circular block 32, the circular insertion cylinder 34 and the circular baffle 33 can be disassembled and assembled, thus preventing dust from the bottom and allowing for timely replacement, which is very convenient.

[0018] Going further, such as Figures 2-3 As shown: An L-shaped contact plate 22 is fixedly connected to one side of the heat dissipation fin 21 inside the stationary contact body 1. Heat dissipation holes 23 are provided on the part of the heat dissipation fin 21 located outside the stationary contact body 1. A circular insertion hole 24 is provided on the inner wall of the stationary contact body 1, penetrating the inner wall of the stationary contact body 1. An annular plate 25 is fixedly connected to the bottom of the stationary contact body 1, and an auxiliary fin plate 26 is fixedly connected to the top of the annular plate 25. The auxiliary fin plate 26 and the heat dissipation fin 21 are arranged alternately. A heat dissipation circular hole 27 is provided on the inner wall of the circular insertion hole 24, penetrating the side wall of the stationary contact body 1. Under the action of 21, the contact surface of heat inside the stationary contact body 1 can be increased. Then, with the help of structures such as auxiliary fins 26, heat can be dissipated to the outside of the stationary contact body 1 through the heat dissipation fins 21. In addition, it can be used in conjunction with the external heat dissipation holes 23 for auxiliary heat dissipation. The principle is to increase the contact area for heat dissipation. At the same time, under the action of the circular insertion hole 24, it can be used in conjunction with the heat dissipation circular hole 27 for auxiliary heat dissipation. At the same time, under the action of the annular plate 25, the heat on the outer surface of the stationary contact body 1 can be dissipated for auxiliary heat dissipation. Thus, under the above heat dissipation action, heat dissipation can be carried out in a stepped manner from the inside to the outside and from the top to the bottom.

[0019] The above solutions also have the problem that dust can easily accumulate in areas such as the round socket 24, affecting heat dissipation. Figure 3 and Figure 4As shown: In this solution, a circular locking block 32 is engaged with the inner wall of the circular slot 31. A circular baffle 33 is fixedly connected to the bottom of the circular locking block 32. An auxiliary circular hole 35 is opened on the inner wall of the circular baffle 33. A circular insert 34 is fixedly connected to the top of the circular baffle 33. The bottom of the circular insert 34 communicates with the auxiliary circular hole 35. Under the action of the circular locking block 32, the circular baffle 33 can be disassembled and assembled, so that the circular baffle 33 can work with the circular insert 34 to prevent dust from entering the inner wall of the circular insertion hole 24. The circular baffle 33 and other components can be replaced in time according to the dust adhesion.

[0020] The above solutions also have the problem that the round insert 34 blocks the heat dissipation hole 27, affecting heat dissipation. Figure 3 and Figure 4 As shown, the side wall of the cylindrical tube 34 is provided with a heat dissipation auxiliary hole 36. Under the action of the heat dissipation auxiliary hole 36, the cylindrical tube 34 can avoid affecting the heat dissipation inside the cylindrical tube 24, so that the heat dissipation auxiliary hole 36 can be aligned with the heat dissipation cylindrical hole 27 for auxiliary heat dissipation.

[0021] Working principle: like Figure 1-4 As shown: In use: The L-shaped contact plate 22 can guide the heat inside the stationary contact body 1 to the heat dissipation fins 21, and then to the external heat dissipation holes 23, thereby dissipating heat inside the stationary contact body 1. At the same time, with the help of the annular plate 25 and the auxiliary fin plate 26, it can assist in heat dissipation on the outer surface of the stationary contact body 1. At the same time, with the help of the round insertion hole 24 and the heat dissipation round hole 27, it can dissipate heat at the bottom of the stationary contact body 1. Meanwhile, the round baffle 33 can trap dust, and with the help of the round locking block 32 and the round locking groove 31, it can be replaced, thereby preventing dust from adhering to the inner wall of the round insertion hole 24 and affecting the use.

[0022] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A stepped heat dissipation stationary contact structure, comprising a stationary contact body (1), characterized in that, The stationary contact body (1) is provided with an auxiliary heat dissipation structure (2), which includes heat dissipation fins (21). The heat dissipation fins (21) are fixedly connected to the inner wall of the stationary contact body (1). There are several heat dissipation fins (21), which are arranged at equal intervals along the circumference of the stationary contact body (1). One side of the heat dissipation fins (21) is located outside the stationary contact body (1), and the other side of the heat dissipation fins (21) is located inside the stationary contact body (1). The bottom of the stationary contact body (1) is provided with a detachable dustproof structure (3), which includes a circular slot (31) located at the bottom of the stationary contact body (1).

2. The stepped heat dissipation static contact structure according to claim 1, characterized in that: The heat dissipation fins (21) are fixedly connected to an L-shaped contact plate (22) on one side inside the stationary contact body (1), and heat dissipation holes (23) are provided on the part of the heat dissipation fins (21) outside the stationary contact body (1).

3. The stepped heat dissipation static contact structure according to claim 1, characterized in that: The inner wall of the stationary contact body (1) is provided with a circular insertion hole (24), which is a circular hole that penetrates the inner wall of the stationary contact body (1).

4. The stepped heat dissipation static contact structure according to claim 1, characterized in that: The bottom of the stationary contact body (1) is fixedly connected to an annular plate (25), and the top of the annular plate (25) is fixedly connected to an auxiliary fin plate (26). The auxiliary fin plate (26) and the heat dissipation fins (21) are arranged alternately.

5. The stepped heat dissipation static contact structure according to claim 3, characterized in that: The inner wall of the circular insertion hole (24) is provided with a heat dissipation circular hole (27), which penetrates the side wall of the stationary contact body (1).

6. The stepped heat dissipation static contact structure according to claim 1, characterized in that: The inner wall of the circular slot (31) is fitted with a circular block (32), the bottom of the circular block (32) is fixedly connected to a circular baffle (33), the inner wall of the circular baffle (33) is provided with an auxiliary circular hole (35), the top of the circular baffle (33) is fixedly connected to a circular insert (34), and the bottom of the circular insert (34) is connected to the auxiliary circular hole (35).

7. The stepped heat dissipation static contact structure according to claim 6, characterized in that: The side wall of the cylindrical tube (34) is provided with heat dissipation auxiliary holes (36).

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