Novel mechanical switch

Abstract

The utility model discloses a novel mechanical switch, which comprises a shell, a rotating seat is arranged in the shell, two moving contacts are arranged on the rotating seat, and the bottoms of the two moving contacts are connected through a conductor; a rotating seat is arranged in the shell, a static cover plate is arranged above the rotating seat, a shaft hole is formed in the center of the lower part of the static cover plate, the shaft hole and a protruding shaft above the rotating seat are matched and positioned, two static contacts are arranged on the static cover plate, and the upper ends of the static contacts are respectively led out of the shell through conductors to serve as an inlet end lead and an outlet end lead. According to the mechanical switch provided by the utility model, the electrified conductor is sealed in the switch cavity by adopting the insulating shell, and an electric gap and a creepage distance are enlarged by adopting a zigzag path mode in the switch cavity.

Description

Technical Field

[0001] The utility model belongs to the technical field of switches, in particular to a novel mechanical switch. Background Art

[0002] Mechanical switches are widely used in various fields such as power systems, petroleum, chemical industry, coal mining, metallurgy and electrified railways to connect and disconnect circuits.

[0003] Currently, high-voltage switch products on the market that rely on air insulation have disadvantages such as low insulation performance and large size, which cannot meet the use requirements, especially in some high-altitude areas where the insulation performance requirements of switch products are higher.

[0004] To this end, we propose a new type of mechanical switch to solve the above problems. Summary of the Invention

[0005] Purpose of the utility model: The purpose of this utility model is to solve the deficiencies in the prior art and provide a new type of mechanical switch.

[0006] Technical solution: The novel mechanical switch described in the utility model includes a housing, a rotating seat is installed in the housing, two moving contacts are installed on the rotating seat, and the bottoms of the two moving contacts are connected by a conductor;

[0007] A static cover is installed above the rotating seat, and an axial hole is provided at the center below the static cover. The axial hole cooperates with the protruding shaft above the rotating seat for positioning. Two static contacts are installed on the static cover, and the upper ends of the static contacts are respectively led out of the shell with conductors as the input lead and the output lead.

[0008] In some embodiments, the housing and the rotating seat are both made of insulating materials.

[0009] In some embodiments, the two moving contacts and the two static contacts are arranged at 180°.

[0010] In some embodiments, a potting compound is poured into the housing to seal and insulate the connection portion between the upper end of the static contact and the conductor.

[0011] In some embodiments, the conductor is potted and insulated with potting glue at the bottom of the circular groove of the rotating seat.

[0012] In some embodiments, a plurality of longitudinal grooves are provided on the outer arc surface below the static cover plate; and a plurality of longitudinal grooves are provided on the inner wall of the inner circular groove of the rotating seat.

[0013] In some embodiments, the static contact is placed on the side of the housing, and the input lead and the output lead are also led out from the side.

[0014] In some embodiments, a mechanical structure and an electromagnetic mechanism are also included.

[0015] Beneficial effects: The beneficial effects of the utility model are as follows:

[0016] (1) When the moving and static contacts of the mechanical switch of the utility model are in the disconnected state, a dual port can be formed between the two static contacts, which can effectively improve the power frequency withstand voltage value of the port between the two static contacts in a smaller structural volume;

[0017] (2) The utility model uses a tortuous path in the cavity to increase the electrical clearance and creepage distance;

[0018] (3) The utility model mechanical switch adopts an insulating shell to enclose the charged conductor in the switch cavity, which makes the mechanical switch have the advantages of smaller size, moisture resistance and pollution resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural cross-sectional view of an embodiment of the present utility model;

[0020] Figure 2 This is a diagram of the internal structure of an embodiment of the utility model when the input and output leads are connected;

[0021] Figure 3 This is a diagram of the internal structure of an embodiment of the utility model when the input and output leads are disconnected;

[0022] Figure 4 This is an internal structure diagram of another embodiment of the present utility model;

[0023] Figure 5 This is an outline view of another embodiment of the present utility model. DETAILED DESCRIPTION

[0024] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as "center", "up", "down", "left", "right", "inside" and "outside" are the directions or positional relationships shown, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0026] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0027] The present invention will be further described in detail below through specific implementation examples and in conjunction with the accompanying drawings. Example

[0028] like Figure 1 As shown, a novel mechanical switch comprises a housing 1, within which a rotating base 2 is mounted. Both the housing 1 and the rotating base 2 are made of insulating material. Two moving contacts 5 are mounted on the rotating base 2, positioned opposite each other within a groove of the rotating base 2. The bottoms of the two moving contacts 5 are connected by a conductor 6, which is potted and insulated with potting compound at the bottom of the circular groove of the rotating base 2.

[0029] A static cover plate 3 is mounted above the rotating base 2. A central axial hole is located below the static cover plate 3, which mates with the protruding shaft above the rotating base 2. Two static contacts 4 are mounted on the static cover plate 3. The upper ends of the static contacts 4 are connected to the housing with high-voltage insulated conductors to serve as input leads 7 and output leads 8, respectively. The two moving contacts 5 and the two static contacts 4 are arranged at 180° angles. The connection points between the upper ends of the static contacts 4 and the input leads 7 and output leads 8 are sealed and insulated with potting compound 9 within the housing 1.

[0030] The operation process of the utility model is as follows:

[0031] The lower end of the rotating seat 2 is provided with an operating shaft, which passes through the shaft sleeve 10 and extends out of the housing 1. When the mechanical switch is turned on, by rotating the bottom operating shaft, the rotating seat 2 rotates 90 degrees so that the two moving contacts 5 are respectively in contact with the static contact 4 above, and the input lead 7 and the output lead 8 are connected. Figure 2 When the mechanical switch is disconnected, the rotating seat 2 rotates 90 degrees to separate the two moving contacts 5 from the upper static contact 4, and the input lead 7 and the output lead 8 are disconnected. Figure 3 shown. Example

[0032] This embodiment is based on the previous embodiment; Figure 4 As shown, a plurality of longitudinal grooves can be provided on the outer arc surface below the static cover plate 3, and a plurality of longitudinal grooves can be provided on the inner wall of the circular groove inside the rotating seat 2, so that the creepage distance can be further increased on the original arc surface. Example

[0033] like Figure 5 As shown, the internal structure of this embodiment is based on that of embodiment 1, with the static contact 4 placed on the side of the housing, and the input lead 7 and the output lead 8 also led out from the side, forming a flat shape as a whole. Example

[0034] This embodiment is based on the first embodiment, and a mechanical structure and an electromagnetic mechanism are added to the operating end of the mechanical switch, which can be combined into an isolating switch and a relay.

[0035] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of the technical content disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A new type of mechanical switch, characterized by: It comprises a housing (1), a rotating seat (2) is installed in the housing (1), two moving contacts (5) are installed on the rotating seat (2), and the bottoms of the two moving contacts (5) are connected via a conductor (6); A static cover plate (3) is installed above the rotating seat (2), and an axial hole is provided at the center below the static cover plate (3). The axial hole cooperates with the protruding shaft above the rotating seat (2) for positioning. Two static contacts (4) are installed on the static cover plate (3), and the upper ends of the static contacts (4) are respectively led out of the housing (1) with conductors as the input lead (7) and the output lead (8).

2. A novel mechanical switch according to claim 1, characterized in that: The housing (1) and the rotating seat (2) are both made of insulating material.

3. The novel mechanical switch according to claim 1, characterized in that: The two moving contacts (5) and the two stationary contacts (4) are arranged at an angle of 180°.

4. The novel mechanical switch according to claim 1, characterized in that: The upper end of the static contact (4) and the conductor connection portion are sealed and insulated by pouring potting glue (9) into the housing (1).

5. The novel mechanical switch according to claim 1, characterized in that: The conductor (6) is potted and insulated at the bottom of the circular groove of the rotating seat (2) using potting glue.

6. The novel mechanical switch according to claim 1, characterized in that: A plurality of longitudinal grooves are provided on the outer arc surface below the static cover plate (3); and a plurality of longitudinal grooves are provided on the inner wall of the inner circular groove of the rotating seat (2).

7. The novel mechanical switch according to claim 1, characterized in that: The static contact (4) is placed on the side of the housing (1), and the input lead (7) and the output lead (8) are also led out from the side.

8. The novel mechanical switch according to claim 1, characterized in that: It also includes mechanical structures and electromagnetic mechanisms.

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