Silicon controlled rectifier switch

Abstract

The utility model discloses a silicon controlled rectifier switch, which comprises a switch main body, the left side and the right side of the switch main body are provided with heat dissipation grating openings, the left side of the switch main body is provided with a heat dissipation piece, the heat dissipation piece is internally provided with a heat dissipation fan, and the bottom of the heat dissipation piece is provided with heat dissipation fins. Binding posts are installed on the upper side and the lower side of the switch piece, pressing caps are movably arranged at the ends of the binding posts, and wire holes are formed in the surfaces of the binding posts; the heat dissipation piece is used in cooperation with heat dissipation through combined use of a heat dissipation fan and heat dissipation fins, heat dissipation is carried out from the side face of the switch body through the heat dissipation piece, the heat dissipation efficiency is improved, the temperature of internal elements of the switch body is prevented from being too high, and the silicon controlled rectifier switch is protected. And the copper column is connected with the wire harness end in the wire hole, so that a circuit is connected, and quick connection of the wire and the silicon-controlled switch is completed.

Description

Technical Field

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

[0002] Thyristors are widely used components in the electrical field. Thyristor switches are applied to contactless switch devices, which can quickly switch on and off shunt capacitors of electric power, and have the characteristics of simple installation, convenient maintenance, fast response speed, no inrush current during switching, and stable and reliable operation without noise.

[0003] During the use of existing thyristor switches, the heat dissipation efficiency of internal components is not good, resulting in an increase in the temperature of internal components, affecting the use safety of thyristor switches. At the same time, when connecting the circuit of the thyristor switch, the connection method is not convenient and fast enough. It is necessary to remove the screws to connect the circuit, the connection speed is slow, and it is not conducive to disassembling the circuit.

[0004] Therefore, those skilled in the art provide a thyristor switch to solve the problems raised in the above background art. Content of the Utility Model

[0005] The purpose of the utility model is to provide a thyristor switch to solve the problems of poor heat dissipation efficiency of existing thyristor switches and inconvenient subsequent circuit disassembly raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A thyristor switch, comprising: a switch body, heat dissipation grille openings are arranged on both the left and right sides of the switch body, a heat dissipation component is installed on the left side of the switch body, a protective frame for protection is installed at the end of the heat dissipation component, a heat dissipation fan is installed inside the heat dissipation component, heat dissipation fins are installed at the bottom of the heat dissipation component, wiring terminals are installed on both the upper and lower sides of the switch component, a compression cap is movably arranged at the end of the wiring terminal, a wire hole is formed on the surface of the wiring terminal, and a clamping post is arranged above the wire hole. A clamping groove is formed on the surface of the compression cap, a compression post is connected to the inner top of the compression cap, and a copper post is connected to the lower end of the compression post.

[0008] As a further scheme in the utility model, the upper end of the compression cap and the compression post are rotationally connected by threads, and the compression post is perpendicular to the wire hole.

[0009] As a further scheme in the utility model, the compression post and the copper post are fixedly connected, and a spring is arranged on the outer side of the compression post.

[0010] As a further scheme in the utility model, the clamping groove on the surface of the compression cap and the clamping post on the surface of the wiring terminal are matched in size.

[0011] As a further solution in the present utility model, a conductive column is connected to the lower end of the terminal, and the terminal is electrically connected to the inside of the switch body through the conductive column.

[0012] As a further solution in the present utility model, the fitting structure is formed between the heat dissipation member and the switch body, and two groups of heat dissipation members are arranged in parallel along the switch body.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. Two groups of heat dissipation members are arranged on the side of the switch body. The heat dissipation members cooperate with heat dissipation by using a combination of a heat dissipation fan and heat dissipation fins. The heat dissipation members dissipate heat from the side of the switch body, improving the heat dissipation efficiency, avoiding the internal components of the switch body from having too high a temperature, and being beneficial to protecting the thyristor switch.

[0015] 2. Through the arrangement of the terminal and the pressure cap, the wire harness is inserted into the wire hole, and the pressure cap is pressed, so that the copper column is connected to the wire harness end in the wire hole, thereby connecting the circuit, completing the rapid connection of the wire and the thyristor switch, with a faster connection speed, and the subsequent disassembly of the circuit is more convenient and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of a thyristor switch.

[0017] Figure 2 It is a schematic structural diagram of a heat dissipation member of a thyristor switch.

[0018] Figure 3 It is a schematic structural diagram of a pressure cap and a terminal in a thyristor switch.

[0019] Figure 4 It is a schematic structural diagram after the pressure cap in a thyristor switch is pressed.

[0020] Figure 5 It is a schematic cross-sectional structural diagram of a pressure cap and a terminal in a thyristor switch.

[0021] In the figure: 1. Switch body; 2. Heat dissipation grille opening; 3. Heat dissipation member; 4. Pressure cap; 5. Protection frame; 6. Heat dissipation fan; 7. Heat dissipation fin; 8. Terminal; 9. Wire hole; 10. Conductive column; 11. Clamping post; 12. Card slot; 13. Pressure post; 14. Spring; 15. Copper column. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1 to 5 , an SCR switch provided by an embodiment of the present utility model includes: a switch body 1, heat dissipation grille openings 2 are provided on both the left and right sides of the switch body 1, a heat dissipation member 3 is installed on the left side of the switch body 1, a protective frame 5 for protection is installed at the end of the heat dissipation member 3, a heat dissipation fan 6 is installed inside the heat dissipation member 3, heat dissipation fins 7 are installed at the bottom of the heat dissipation member 3, the heat dissipation member 3 and the switch body 1 are of an embedded structure, and two groups of heat dissipation members 3 are arranged in parallel along the switch body 1;

[0024] Specifically, through the arrangement of the heat dissipation member 3, the inside of the heat dissipation member 3 is composed of a heat dissipation fan 6 and heat dissipation fins 7, which improves the heat dissipation efficiency. The two groups of heat dissipation members 3 can cooperate with the heat dissipation grille openings 2 to help the internal components of the switch body 1 dissipate heat.

[0025] Terminal posts 8 are installed on both the upper and lower sides of the switching element. The lower end of the terminal post 8 is connected to a conductive post 10. The terminal post 8 is electrically connected to the inside of the switch body 1 through the conductive post 10;

[0026] Specifically, the lower end of the terminal post 8 is electrically connected to the SCR switch through the conductive post 10. When the circuit is connected to the terminal post 8, the circuit connection of the switch body 1 is completed.

[0027] A compression cap 4 is movably arranged at the end of the terminal post 8. A wire hole 9 is formed on the surface of the terminal post 8, and a clamping post 11 is arranged above the wire hole 9. A clamping groove 12 is formed on the surface of the compression cap 4. A compression post 13 is connected to the inner top of the compression cap 4, and a copper post 15 is connected to the lower end of the compression post 13;

[0028] The compression cap 4 and the upper end of the compression post 13 are in threaded rotational connection. The compression post 13 is perpendicular to the wire hole 9. The compression post 13 and the copper post 15 are fixedly connected. A spring 14 is arranged outside the compression post 13. The clamping groove 12 on the surface of the compression cap 4 and the clamping post 11 on the surface of the terminal post 8 are in matching dimensions;

[0029] Specifically, through the arrangement of the compression cap 4 and the terminal post 8, the compression cap 4 can be pressed against and fit the terminal post 8. When the compression cap 4 is pressed, the compression post 13 will be inserted into the wire hole 9 along with the pressing of the compression cap 4. Thus, the copper post 15 at the lower end of the compression post 13 can contact the wire harness inside the wire hole 9, and then the circuit is fixedly connected. In this way, the circuit connection method is simple and fast, and the subsequent circuit disassembly is also more convenient and fast.

[0030] The working principle of the present utility model is as follows: When using the present utility model, the wire harness is inserted through the wire hole 9 provided on the surface of the terminal 8. Then, the lower cap 4 is pressed. After the lower cap 4 is pressed down, the pressure column 13 inside the lower cap 4 will drive the copper column 15 connected to the lower end to penetrate from the top of the terminal 8 and contact the wire harness in the wire hole 9. By connecting the terminal 8 with the conductive column 10 and cooperating with the conductivity of the copper column 15, the connection between the circuit and the circuit of the switch body 1 is realized. Then, the upper end between the lower cap 4 and the pressure column 13 is a rotatable structure. After the lower cap 4 is pressed, the card slot 12 on the surface of the lower cap 4 will align with the card post 11. Rotate the lower cap 4 to make the card post 11 snap into the card slot 12, thereby stabilizing the lower cap 4 and maintaining the pressed state of the lower cap 4. When disassembling the circuit, turn back the lower cap 4, the card post 11 disengages from the card slot 12, and using the elastic force of the spring 14, the lower cap 4 is bounced back again, the pressure column 13 drives the copper column 15 away from the wire hole 9, the wire harness in the wire hole 9 is loosened, and the wire harness can be pulled out to complete the disassembly of the circuit.

[0031] The above is only the preferred specific implementation mode of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A thyristor switch, characterized in that: include: A switch body (1), wherein both left and right sides of the switch body (1) are provided with heat dissipation grille openings (2), a heat dissipation element (3) is installed on the left side of the switch body (1), a protective frame (5) for protection is installed at the end of the heat dissipation element (3), a heat dissipation fan (6) is installed inside the heat dissipation element (3), a heat sink (7) is installed at the bottom of the heat dissipation element (3), a terminal post (8) is installed on both upper and lower sides of the switch element, a pressure cap (4) is movably provided at the end of the terminal post (8), a wire hole (9) is opened on the surface of the terminal post (8), and a clamping column (11) is arranged above the wire hole (9), a clamping groove (12) is opened on the surface of the clamping cap (4), a pressure column (13) is connected to the inner top of the pressure cap (4), and a copper column (15) is connected to the lower end of the pressure column (13).

2. A thyristor switch according to claim 1, characterized in that: The pressure cap (4) and the upper end of the pressure column (13) are rotatably connected by a thread, and the pressure column (13) and the wire hole (9) are perpendicular to each other.

3. The thyristor switch according to claim 1, characterized in that: The pressure column (13) and the copper column (15) are fixedly connected, and a spring (14) is arranged on the outside of the pressure column (13).

4. The thyristor switch according to claim 1, characterized in that: The sizes of the clamping groove (12) on the surface of the pressing cap (4) and the clamping column (11) on the surface of the terminal column (8) match each other.

5. The thyristor switch according to claim 1, characterized in that: The lower end of the terminal (8) is connected to a conductive post (10), and the terminal (8) is electrically connected to the interior of the switch body (1) via the conductive post (10).

6. The thyristor switch according to claim 1, characterized in that: The heat sink (3) and the switch body (1) are in an interlocking structure, and two groups of heat sinks (3) are arranged in parallel along the switch body (1).

Images