A medium voltage contactor box

Abstract

This utility model discloses a medium-voltage contactor box, including a contactor box body. A cover plate is fixedly installed on the upper surface of the contactor box body. A partition plate is fixedly connected to the inner wall of the contactor box body. A pressure roller is fixedly connected to the inner wall of the contactor box body. A power supply box is fixedly installed on the inner bottom wall of the contactor box body. A control main board is fixedly installed on the inner bottom wall of the contactor box body. When the coil surface of this utility model is energized, a magnetic field is generated, which causes the second magnet to generate an electromagnetic attraction force, attracting the first magnet. The attraction force drives the first magnet, the insulating rod, and the plate downward, so that multiple conductive posts on the lower surface of the plate are inserted into the insertion slots for positioning, maintaining stability when the current flows. When it is necessary to remove the power supply box from the contactor box body, the snap-fit ​​connector in the snap-fit ​​hole is pushed and subjected to force. After being subjected to force, the snap-fit ​​connector deforms and releases the snap-fit ​​connector from the snap-fit ​​hole, achieving a quick separation and disassembly effect.

Description

Technical Field

[0001] This utility model relates to the technical field of electrical control, and in particular to a medium-voltage contactor box. Background Technology

[0002] Medium-voltage contactors are mainly used to control the switching on and off of high-current circuits, such as motor starting / stopping and industrial automation equipment, and are capable of remote control and frequent operation. Their core component is an electromagnet, which generates a magnetic field through an energized coil to drive contacts to close or open the circuit. A medium-voltage contactor box is the enclosure in which the medium-voltage contactor is installed.

[0003] Existing medium-voltage contactors cannot maintain a stable connection when pressed. To address this issue, the inventors propose a novel medium-voltage contactor box with a built-in contactor to solve the problem. Utility Model Content

[0004] The purpose of this utility model is to solve the problems raised by the prior art by proposing a medium-voltage contactor box.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A medium-voltage contactor box includes a contactor box body, a cover plate fixedly installed on the upper surface of the contactor box body, a partition plate fixedly connected to the inner wall of the contactor box body, a pressure roller fixedly connected to the inner wall of the contactor box body, a power supply box fixedly installed on the inner bottom wall of the contactor box body, a control main board fixedly installed on the inner bottom wall of the contactor box body, and a stable guiding contact mechanism fixedly connected to the upper surface of the power supply box body.

[0007] Preferably, the stable guiding contact mechanism includes an H-shaped cylinder fixedly connected to the upper surface of the power supply box, a coil is wound and fixedly connected to the surface of the H-shaped cylinder, an insulating rod is slidably connected to the inner wall of the H-shaped cylinder, a plate is fixedly connected to the top of the insulating rod, and multiple conductive posts are fixedly connected to the lower surface of the plate.

[0008] Furthermore, a support plate is fixedly connected to the inner wall of the contactor housing, a first contact head is fixedly connected to the top of the support plate, a fixing plate is fixedly connected to the inner wall of the contactor housing, and a second contact head is fixedly connected to the top of the fixing plate.

[0009] Preferably, the upper surfaces of the first contact head and the second contact head are provided with multiple insertion slots, the conductive post is adapted to the insertion slots, and the surface of the insulating rod is fitted with an insulating spring.

[0010] Furthermore, a first magnet is fixedly connected to the surface of the insulating rod, a second magnet and a guide plate are fixedly connected to the upper surface of the power supply box, the inner wall of the guide plate is slidably connected to the surface of the first magnet, and the top end of the insulating spring is in contact with the lower surface of the first magnet.

[0011] Preferably, a fixing cylinder is fixedly connected to the inner bottom wall of the contactor housing, and a snap-fit ​​hole is provided on the inner wall of the fixing cylinder. A snap-fit ​​connector is fixedly connected to the surface of the power supply box, and the snap-fit ​​connector snaps into the inside of the snap-fit ​​hole. The snap-fit ​​connector is flexible.

[0012] The beneficial effects of this utility model are as follows:

[0013] When the coil surface is energized, a magnetic field is generated, which causes the second magnet to generate an electromagnetic attraction force, attracting the first magnet. The attraction force drives the first magnet, the insulating rod, and the plate downwards, so that multiple conductive posts on the lower surface of the plate are inserted into the insertion slots for positioning, maintaining stability when the current flows. When it is necessary to remove the power supply box from the contactor housing, the snap-fit ​​connector in the snap-fit ​​hole is pushed and subjected to force. After being subjected to force, the snap-fit ​​connector is deformed, releasing the snap-fit ​​state between the snap-fit ​​connector and the snap-fit ​​hole, achieving a quick separation and disassembly effect. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a medium-voltage contactor box proposed in this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the housing of a medium-voltage contactor box proposed in this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of a T-shaped rod in a medium-voltage contactor box according to the present invention.

[0017] Figure 4 This is a cross-sectional view of the fixed cylinder in a medium-voltage contactor box according to the present invention.

[0018] In the diagram: 1. Contactor housing; 2. Cover plate; 3. Partition plate; 4. Pressure roller; 5. Power supply box; 6. Second magnet; 7. Straight plate; 8. Control main board; 9. Support plate; 10. First contact head; 11. Second contact head; 12. Insertion slot; 13. Conductive post; 14. First magnet; 15. Fixing plate; 16. Insulating spring; 17. Guide plate; 18. Snap-fit ​​connector; 19. H-shaped cylinder; 20. Coil; 21. Fixing cylinder; 22. Snap-fit ​​hole; 23. Insulating rod. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figures 1-4 A medium-voltage contactor box includes a contactor box body 1, a cover plate 2 fixedly installed on the upper surface of the contactor box body 1, a partition plate 3 fixedly connected to the inner wall of the contactor box body 1, a pressure roller 4 fixedly connected to the inner wall of the contactor box body 1, a power supply box 5 fixedly installed on the inner bottom wall of the contactor box body 1, a control main board 8 fixedly installed on the inner bottom wall of the contactor box body 1, and a stable guiding contact mechanism fixedly connected to the upper surface of the power supply box 5.

[0021] By setting up the contactor housing 1 and cover plate 2, the internal components and equipment are protected. By setting up the control main board 8, the power supply box 5 is powered and controlled. By setting up the power supply box 5, the coil 20 is energized. By setting up the stable guiding contact mechanism, the stable connection of the components inside the contactor housing 1 is maintained.

[0022] In this utility model, reference Figure 2 and Figure 3 The stable guiding contact mechanism includes an H-shaped cylinder 19 fixedly connected to the upper surface of the power supply box 5. A coil 20 is wound and fixedly connected to the surface of the H-shaped cylinder 19. An insulating rod 23 is slidably connected to the inner wall of the H-shaped cylinder 19. A straight plate 7 is fixedly connected to the top of the insulating rod 23. Multiple conductive posts 13 are fixedly connected to the lower surface of the straight plate 7.

[0023] By setting an H-shaped cylinder 19, a coil 20 is wound and fixed. When the surface of the coil 20 is energized, a magnetic field is generated, which causes the second magnet 6 to generate electromagnetic attraction. By setting a straight plate 7, the movement drives multiple conductive posts 13 to move, thereby allowing multiple conductive posts 13 to be inserted into the corresponding insertion slots 12.

[0024] In this utility model, reference Figure 3 A support plate 9 is fixedly connected to the inner wall of the contactor housing 1. A first contact head 10 is fixedly connected to the top of the support plate 9. A fixing plate 15 is fixedly connected to the inner wall of the contactor housing 1. A second contact head 11 is fixedly connected to the top of the fixing plate 15.

[0025] By setting up the first contact head 10 and the second contact head 11, the power-on operation is performed after the plate 7 descends and contacts it.

[0026] In this utility model, reference Figure 3 The upper surfaces of the first contact head 10 and the second contact head 11 are provided with multiple insertion slots 12, the conductive post 13 is adapted to the insertion slots 12, and the surface of the insulating rod 23 is fitted with an insulating spring 16.

[0027] By setting multiple insertion slots 12, space is provided for the insertion of the conductive post 13, and by setting an insulating spring 16, the first magnet 14 and the insulating rod 23 are driven to return to their original height.

[0028] In this utility model, reference Figure 3 The surface of the insulating rod 23 is fixedly connected to the first magnet 14, the upper surface of the power supply box 5 is fixedly connected to the second magnet 6 and the guide plate 17, the inner wall of the guide plate 17 is slidably connected to the surface of the first magnet 14, and the top end of the insulating spring 16 is in contact with the lower surface of the first magnet 14.

[0029] After the first magnet 14 and the second magnet 6 are magnetically attracted, the height of the insulating rod 23 and the straight plate 7 is lowered, the insulating spring 16 is compressed and shortened, and the guide plate 17 is set to keep the sliding of the first magnet 14 stable when it moves up and down.

[0030] In this utility model, reference Figure 4 A fixing cylinder 21 is fixedly connected to the inner bottom wall of the contactor housing 1. A snap-fit ​​hole 22 is opened on the inner wall of the fixing cylinder 21. A snap-fit ​​connector 18 is fixedly connected to the surface of the power supply box 5. The snap-fit ​​connector 18 snaps into the inside of the snap-fit ​​hole 22. The snap-fit ​​connector 18 is flexible.

[0031] By setting the snap-fit ​​hole 22, space is provided for the snap-fit ​​connector 18 to be quickly inserted. By setting the snap-fit ​​connector 18, when the snap-fit ​​connector 18 is bent under force, it is convenient for the power supply box 5 to be quickly separated from the fixing cylinder 21 to achieve the disassembly effect.

[0032] Working principle: The main board 8 controls the power supply box 5 to supply power to the coil 20. After the surface of the coil 20 is energized, a magnetic field is generated, which causes the second magnet 6 to generate an electromagnetic attraction, attracting the first magnet 14. The attraction causes the first magnet 14, the insulating rod 23 and the plate 7 to move downwards, so that the multiple conductive posts 13 on the lower surface of the plate 7 are inserted into the insertion slot 12 for positioning, maintaining stability when the current flows. The first magnet 14 maintains stable sliding under the guidance of the guide plate 17. At this time, the compressed insulating spring 16 shortens. When the coil 20 is not energized, the second magnet 6 separates from the first magnet 14, and the plate 7 resets under the action of the insulating spring 16, rising in height to achieve the disconnection effect. When it is necessary to remove the power supply box 5 from the contactor housing 1, the snap connector 18 in the snap hole 22 is pushed and subjected to force. The snap connector 18 is tough and deforms after being subjected to force, releasing the snap connector 18 from the snap hole 22, achieving a quick separation and disassembly effect.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A medium voltage contactor box comprising a contactor box body (1), characterized in that, A cover plate (2) is fixedly installed on the upper surface of the contactor housing (1), a partition plate (3) is fixedly connected to the inner wall of the contactor housing (1), a pressure roller (4) is fixedly connected to the inner wall of the contactor housing (1), a power supply box (5) is fixedly installed on the inner bottom wall of the contactor housing (1), a control main board (8) is fixedly installed on the inner bottom wall of the contactor housing (1), and a stable guide contact mechanism is fixedly connected to the upper surface of the power supply box (5).

2. A medium voltage contactor box according to claim 1, characterized in that The stable guiding contact mechanism includes an H-shaped cylinder (19) fixedly connected to the upper surface of the power supply box (5). A coil (20) is wound and fixedly connected to the surface of the H-shaped cylinder (19). An insulating rod (23) is slidably connected to the inner wall of the H-shaped cylinder (19). A plate (7) is fixedly connected to the top of the insulating rod (23). Multiple conductive posts (13) are fixedly connected to the lower surface of the plate (7).

3. A medium voltage contactor box according to claim 2, characterized in that A support plate (9) is fixedly connected to the inner wall of the contactor housing (1), and a first contact head (10) is fixedly connected to the top of the support plate (9). A fixing plate (15) is fixedly connected to the inner wall of the contactor housing (1), and a second contact head (11) is fixedly connected to the top of the fixing plate (15).

4. A medium voltage contactor box according to claim 3, characterized in that The upper surfaces of the first contact head (10) and the second contact head (11) are provided with multiple insertion slots (12), the conductive post (13) is adapted to the insertion slots (12), and the surface of the insulating rod (23) is fitted with an insulating spring (16).

5. A medium voltage contactor box according to claim 4, characterized in that The surface of the insulating rod (23) is fixedly connected to a first magnet (14), the upper surface of the power supply box (5) is fixedly connected to a second magnet (6) and a guide plate (17), the inner wall of the guide plate (17) is slidably connected to the surface of the first magnet (14), and the top end of the insulating spring (16) is in contact with the lower surface of the first magnet (14).

6. A medium voltage contactor box according to claim 1, characterized in that A fixing cylinder (21) is fixedly connected to the inner bottom wall of the contactor housing (1). A snap-fit ​​hole (22) is opened on the inner wall of the fixing cylinder (21). A snap-fit ​​connector (18) is fixedly connected to the surface of the power supply box (5). The snap-fit ​​connector (18) is snapped into the inside of the snap-fit ​​hole (22). The snap-fit ​​connector (18) is flexible.

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