Direct-current contactor for high-voltage environment

Abstract

The utility model provides a direct-current contactor for a high-voltage environment, which relates to the technical field of direct-current contactors and comprises a socket and a contactor main body. The top of the socket is connected with the contactor body. The circuit is electrically connected with the contactor body through the socket. The top of the socket is connected with two connecting plate strips, the top ends of the connecting plate strips are connected with a clamping plate, and the clamping plate is connected with the two connecting plate strips and located at the top of the contactor body. According to the utility model, the contactor main body and the socket are connected together in a plug-in manner, when the contactor main body is damaged and cannot be used, normal power supply can be quickly recovered only by pulling out the damaged contactor main body and plugging a new contactor main body, the requirement of power supply in a high-voltage environment is better met, and downward thrust is applied to the clamping plate through the spring, so that the clamping plate is not damaged. And the bottom side of the clamping plate is contacted with the top side of the contactor main body to clamp and fix the contactor main body, so that the stability of plugging conduction of the power connection plug of the contactor main body and the power connection jack of the socket is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of DC contactors, in particular to a DC contactor used in a high-voltage environment. Background Art

[0002] A DC contactor is a contactor whose core is controlled by a DC coil. Its load can be either DC or AC. Unlike AC contactors, the core of a DC contactor does not contain eddy currents. DC contactors are widely used in electric traction. They are a control circuit used to automatically connect or disconnect high-current circuits, and can frequently connect and disconnect loads.

[0003] At present, in the application process of existing DC contactors, a direct circuit connection method is generally used to connect the DC contactor, and the connection parts are tightened and fixed by bolts. When the DC contactor is damaged and needs to be replaced, it is necessary to use a screwdriver to loosen the bolts in sequence to remove the damaged DC contactor, and then tighten the bolts to fix the circuit with the new DC contactor, which takes a long time. Utility Model Content

[0004] The present disclosure relates to a DC contactor for use in high-voltage environments, which solves the problem that existing DC contactors generally adopt a direct circuit connection method to connect with the DC contactor, and the connection parts are tightened and fixed by bolts. When the DC contactor is damaged and needs to be replaced, it is necessary to use a screwdriver to loosen the bolts one by one to remove the damaged DC contactor, which takes a long time.

[0005] In a first aspect of the present disclosure, a DC contactor for a high-voltage environment is provided, specifically comprising: a socket, a contactor body, a connecting strip, a clamping plate, and an elastic pin; the top of the socket is connected to the contactor body, and the circuit is electrically connected to the contactor body through the socket; two connecting strips are connected to the top of the socket, the top of the connecting strips is connected to the clamping plate, the clamping plate is connected to the two connecting strips, and the clamping plate is located on the top of the contactor body; two elastic pins are connected to the top of the socket, and the elastic pins are connected to the contactor body.

[0006] Furthermore, the six power plugs of the contactor body are plugged together with the six power sockets of the socket, the socket is connected to the circuit, and the contactor body and the socket are connected together by plugging. When the contactor body is damaged and cannot be used, it is only necessary to unplug the damaged contactor body and plug in a new contactor body to quickly restore normal power supply.

[0007] Furthermore, the bottom of the connecting strip is rotatably connected to the socket, a handle is provided on the top of the clamping plate, and the bottom side of the clamping plate contacts the top side of the contactor body.

[0008] Furthermore, the top of the connecting strip is bent, and two through holes are provided on the top of the connecting strip. Guide rods are provided at both ends of the bottom of the splint, and the guide rods slide through the through holes provided on the connecting strip.

[0009] Furthermore, a spring is sheathed on the outside of the guide rod provided on the clamping plate, the bottom end of the spring contacts the end of the guide rod, and the top end of the spring contacts the connecting strip. The spring applies a downward thrust to the clamping plate, so that the bottom side of the clamping plate contacts the top side of the contactor body, clamping and fixing the contactor body, thereby ensuring the stability of the electrical connection between the electrical plug of the contactor body and the electrical socket of the socket.

[0010] Furthermore, a slot is provided on the top of the socket, and external connection holes are provided on both sides of the slot. Insert blocks are provided on opposite sides of the contactor body, and the insert blocks are inserted into the slot of the socket. Internal connection holes are provided inside the insert blocks, and the internal connection holes are connected to the external connection holes.

[0011] Furthermore, the end of the elastic pin is inserted into the external connection hole and the internal connection hole in a connected state. When the contactor body and the socket are plugged together, the plug block is inserted into the slot, the internal connection hole and the external connection hole are in a connected state, and the end of the elastic pin is inserted into the external connection hole and the internal connection hole, and the contactor body is auxiliary fixed by the elastic pin.

[0012] The utility model provides a DC contactor for high voltage environment, which has the following beneficial effects:

[0013] When the utility model is in use, the contactor body is connected to the socket by plugging. When the contactor body is damaged and cannot be used, it is only necessary to pull out the damaged contactor body and plug in a new contactor body to quickly restore normal power supply, thereby better meeting the power supply needs of a high-voltage environment.

[0014] In addition, the spring applies a downward push to the clamping plate, so that the bottom side of the clamping plate contacts the top side of the contactor body, clamping and fixing the contactor body, and ensuring the stability of the connection and conductivity between the power plug of the contactor body and the power socket of the socket; when the contactor body needs to be replaced, just pull the clamping plate upwards, the spring will be forced to contract, and the bottom side of the clamping plate will be separated from the top side of the contactor body, and the connecting strip will be driven to rotate through the clamping plate, so that the clamping plate is away from the top of the contactor body, and the damaged contactor body can be pulled out.

[0015] In addition, when the contactor body and the socket are plugged together, the plug block is inserted into the slot, the inner connecting hole and the outer connecting hole are connected, and the end of the elastic pin is inserted into the outer connecting hole and the inner connecting hole. The elastic pin is used to assist in fixing the contactor body, further ensuring the stability of the connection between the contactor body and the socket.

[0016] Other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings of the embodiments will be briefly introduced below.

[0018] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0019] In the attached figure:

[0020] Figure 1 Shows the overall axial side structure schematic diagram of the present application;

[0021] Figure 2 A schematic diagram of the disassembled structure of the socket, contactor body and elastic pin of the present application is shown;

[0022] Figure 3 A schematic diagram of the connection structure of the connecting strips, splints and springs of the present application is shown;

[0023] Figure 4 A schematic diagram of the disassembly structure of the connecting strips and the splints of the present application is shown.

[0024] Reference Signs List

[0025] 1. Socket; 101. Slot; 1011. External connection hole; 2. Contactor body; 201. Insert block; 2011. Internal connection hole; 3. Connecting strip; 301. Through hole; 4. Clamp; 401. Guide rod; 5. Spring; 6. Elastic pin. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Example 1: Please refer to Figures 1 to 4 :

[0028] The utility model proposes a DC contactor for a high-voltage environment, comprising: a socket 1, a contactor body 2, a connecting strip 3, a clamping plate 4 and an elastic pin 6; the contactor body 2 is connected to the top of the socket 1, and the circuit is electrically connected to the contactor body 2 through the socket 1; two connecting strips 3 are connected to the top of the socket 1, the top of the connecting strip 3 is connected to the clamping plate 4, the clamping plate 4 is connected to the two connecting strips 3, and the clamping plate 4 is located on the top of the contactor body 2; two elastic pins 6 are connected to the top of the socket 1, the elastic pins 6 are connected to the contactor body 2, the six power plugs of the contactor body 2 are plugged together with the six power sockets of the socket 1, and the socket 1 is connected to the circuit; the contactor body 2 is connected to the socket 1 by plugging. When the contactor body 2 is damaged and cannot be used, it is only necessary to pull out the damaged contactor body 2 and plug in a new contactor body 2 to quickly restore normal power supply, thereby better meeting the power supply requirements of a high-voltage environment.

[0029] In the embodiment of the present disclosure, the bottom of the connecting strip 3 is rotatably connected to the socket 1, a handle is provided on the top of the splint 4, the bottom side of the splint 4 contacts the top side of the contactor body 2, the top of the connecting strip 3 is bent, and two through holes 301 are provided on the top of the connecting strip 3. Guide rods 401 are provided at both ends of the bottom of the splint 4. The guide rods 401 slide through the through holes 301 provided on the connecting strip 3. A spring 5 is sleeved on the outside of the guide rod 401 provided on the splint 4. The bottom end of the spring 5 contacts the end of the guide rod 401, and the top end of the spring 5 contacts the connecting strip 3.

[0030] By adopting the above technical solution, the spring 5 applies a downward thrust to the clamping plate 4, so that the bottom side of the clamping plate 4 contacts the top side of the contactor body 2, clamps and fixes the contactor body 2, and ensures the stability of the connection and conductivity between the power plug of the contactor body 2 and the power socket of the socket 1; when the contactor body 2 needs to be replaced, it is only necessary to pull the clamping plate 4 upward, and the spring 5 is forced to contract, so that the bottom side of the clamping plate 4 is separated from the top side of the contactor body 2, and the connecting strip 3 is driven to rotate through the clamping plate 4, so that the clamping plate 4 is away from the top of the contactor body 2, and the damaged contactor body 2 can be pulled out.

[0031] Embodiment 2, based on embodiment 1, a slot 101 is provided on the top of the socket 1, and external connection holes 1011 are provided on both sides of the slot 101. Insert blocks 201 are provided on opposite sides of the contactor body 2. The insert blocks 201 are inserted into the slot 101 provided in the socket 1. An internal connection hole 2011 is provided inside the insert block 201. The internal connection hole 2011 is connected to the external connection hole 1011, and the end of the elastic pin 6 is inserted into the external connection hole 1011 and the internal connection hole 2011 in the connected state;

[0032] With the above technical solution, when the contactor body 2 and the socket 1 are plugged together, the plug block 201 is inserted into the slot 101, the inner connection hole 2011 and the outer connection hole 1011 are connected, and the end of the elastic pin 6 is inserted into the outer connection hole 1011 and the inner connection hole 2011. The elastic pin 6 is used to auxiliary fix the contactor body 2, further ensuring the stability of the connection between the contactor body 2 and the socket 1.

[0033] The working principle of this embodiment is as follows: first, the contactor body 2 is connected to the socket 1 by plugging, and the six electrical plugs of the contactor body 2 are plugged into the six electrical sockets of the socket 1. The circuit is electrically connected to the contactor body 2 through the socket 1; the spring 5 applies a downward thrust to the clamping plate 4, so that the bottom side of the clamping plate 4 contacts the top side of the contactor body 2, clamping and fixing the contactor body 2, and ensuring the stability of the electrical connection between the electrical plugs of the contactor body 2 and the electrical sockets of the socket 1; the plug block 201 is plugged into the slot 101, and the inner connecting hole 2011 is connected to the outer connecting hole 1011. In the connected state, the ends of the elastic pins 6 are inserted into the outer connecting holes 1011 and the inner connecting holes 2011, and the contactor body 2 is assisted in being fixed by the elastic pins 6; when the contactor body 2 is damaged and cannot be used, the two elastic pins 6 are separated, and the splint 4 is pulled upward, and the spring 5 is forced to contract, so that the bottom side of the splint 4 is separated from the top side of the contactor body 2, and the splint 4 drives the connecting strip 3 to rotate, so that the splint 4 is away from the top of the contactor body 2, and the damaged contactor body 2 can be pulled out, and a new contactor body 2 can be plugged in to quickly restore normal power supply, better meeting the power supply requirements of the high-voltage environment.

[0034] In this article, there are several points to note:

[0035] 1. The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure. Other structures may refer to conventional designs.

[0036] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to form new embodiments.

[0037] The above are only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A DC contactor for high voltage environments, comprising: A socket (1), a contactor body (2), a connecting strip (3), a clamp (4) and an elastic pin (6); characterized in that the top of the socket (1) is connected to the contactor body (2), and the circuit is electrically connected to the contactor body (2) through the socket (1); two connecting strips (3) are connected to the top of the socket (1), and the top of the connecting strip (3) is connected to the clamp (4), the clamp (4) is connected to the two connecting strips (3), and the clamp (4) is located on the top of the contactor body (2); two elastic pins (6) are connected to the top of the socket (1), and the elastic pins (6) are connected to the contactor body (2).

2. A DC contactor for high voltage environment according to claim 1, characterized in that: The six power plugs of the contactor body (2) are plugged into the six power sockets of the socket (1), and the socket (1) is connected to the circuit.

3. A DC contactor for high voltage environment according to claim 1, characterized in that: The bottom of the connecting strip (3) is rotatably connected to the socket (1), a pull handle is provided on the top of the clamping plate (4), and the bottom side of the clamping plate (4) contacts the top side of the contactor body (2).

4. A DC contactor for high voltage environment according to claim 1, characterized in that: The top of the connecting strip (3) is bent, and two through holes (301) are provided on the top of the connecting strip (3). Guide rods (401) are provided at both ends of the bottom of the clamping plate (4), and the guide rods (401) slide through the through holes (301) provided on the connecting strip (3).

5. A DC contactor for high voltage environment according to claim 4, characterized in that: The guide rod (401) provided on the clamping plate (4) is sheathed with a spring (5) on the outside, the bottom end of the spring (5) contacts the end of the guide rod (401), and the top end of the spring (5) contacts the connecting strip (3).

6. A DC contactor for high voltage environment according to claim 1, characterized in that: The top of the socket (1) is provided with a slot (101), and both sides of the slot (101) are provided with external connection holes (1011). The contactor body (2) is provided with plug blocks (201) on opposite sides. The plug blocks (201) are plugged into the slot (101) provided in the socket (1). The plug blocks (201) are provided with internal connection holes (2011) inside, and the internal connection holes (2011) are connected to the external connection holes (1011).

7. A DC contactor for high voltage environment according to claim 6, characterized in that: The end of the elastic pin (6) is inserted into the external connection hole (1011) and the internal connection hole (2011) in a connected state.

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