Electromagnetic power supply master switch

Abstract

The utility model discloses electromagnetic power supply master switch, including fixed base, be provided with a plurality of mounting hole on the fixed base, be connected with the electromagnetic switch body through the fixed mechanism on the fixed base, be provided with two binding posts on the electromagnetic switch body, the middle part of two binding posts is provided with interval seat, and the protective cover is connected with two first screws on the interval seat, and the side end fixed connection of electromagnetic switch body has the fixed ring, and the position that fixed ring is connected with the protective cover is provided with two threading port, and the first sealing washer is arranged between fixed ring and the protective cover, and the position that the first sealing washer corresponds with two threading port all is provided with the sealing ring on, and the top fixed connection of interval seat has the second sealing washer, and the protection of two binding posts is convenient for protection, avoids the object of conducting electricity and falls on two binding posts and leads two binding posts connection line intercommunication, avoids leading to the automatic start of corresponding equipment, avoids the emergence certain security risk.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic switch technology, and more specifically, to an electromagnetic power main switch. Background Technology

[0002] Electromagnetic power switches are currently the most common type of automotive power switches. Their principle is that when the internal electromagnet coil is energized, it generates an electromagnetic attraction. This electromagnetic attraction drives the movable iron core to push or pull the switch contacts to close, thereby connecting the controlled circuit.

[0003] A search revealed that Chinese utility model patent application number CN201721020973.7 discloses an electromagnetic power switch, comprising a hollow housing, an I-beam wheel inside the housing with a coil wound around it, a support frame snapped onto the surface of the I-beam wheel, a circuit board connected to the coil on the I-beam wheel, multiple connecting pieces at the interface of the circuit board, and multiple L-shaped external connecting pieces on the side of the housing corresponding to the connecting pieces. The longitudinal ends of the L-shape of the multiple external connecting pieces are electrically connected to the connecting pieces, and the transverse ends of the L-shape of the multiple external connecting pieces penetrate the housing and are exposed on the outside of the housing. The housing is provided with a wiring port surrounding the transverse ends of the multiple external connecting pieces, and matching external wires are connected to the external connecting pieces and the wiring port.

[0004] Its two terminals are located on the outside, and it lacks a structure to seal the two terminals. When a conductive object falls on the two terminals, it can cause the circuit connecting the two terminals to be connected, which can easily cause the corresponding equipment to start automatically, posing a certain safety hazard. In addition, the connecting wires connected to the terminals are tightened and fixed by nuts screwed on the connecting terminals. Since the terminals are exposed to the outside for a long time, water can easily fall on the nuts, which can easily cause corrosion and damage to the nuts and terminals, affecting their normal disassembly.

[0005] Furthermore, most existing electromagnetic power switches are installed and fixed by multiple small bolts. When disassembling and replacing them, all of these small bolts need to be removed, which is cumbersome and reduces the efficiency of the replacement process. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] In view of the problems existing in the prior art, this utility model provides an electromagnetic power main switch to solve the technical problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: an electromagnetic power main switch, including a fixed base with multiple mounting holes. An electromagnetic switch body is connected to the fixed base via a fixing mechanism. The electromagnetic switch body has two terminals, and a spacer is provided between the two terminals. A protective cover is connected to the spacer via two first screws. A fixing ring is fixedly connected to the side end of the electromagnetic switch body. Two wire through holes are provided at the connection position between the fixing ring and the protective cover. A first sealing gasket is provided between the fixing ring and the protective cover. Sealing rings are provided on the first sealing gasket at positions corresponding to the two wire through holes. A second sealing gasket is fixedly connected to the top of the spacer. This facilitates the protection of the two terminals, preventing conductive objects from falling onto the two terminals and causing the circuit connected to the two terminals to be connected, thus preventing the corresponding equipment from automatically starting and avoiding certain safety hazards.

[0010] The present invention is further configured such that the electromagnetic switch body includes a base and a top seat. An electromagnetic coil is installed inside the base, and a wiring port is installed on the side end of the base. Two connecting plates electrically connected to the electromagnetic coil are installed inside the wiring port. The top seat is connected to the base by multiple second screws. The top seat is fixedly connected to two terminals and a fixing ring. A first copper plate is fixedly connected to one end of each of the two terminals extending into the top seat. Four fixing rods are fixedly connected inside the top seat. An iron plate is slidably disposed on the outside of the four fixing rods. A second copper plate that cooperates with the two first copper plates is fixedly connected to the bottom end of the iron plate. A circular plate is installed at the bottom end of each of the four fixing rods. A compression spring is sleeved on the outside of each of the four fixing rods. The two ends of the compression spring abut against the iron plate and the circular plate respectively, which can separate the top seat and the base for easy inspection of the internal structure.

[0011] The present invention is further configured such that a limiting post is fixedly connected to the inner top of the top seat, which plays a role in positioning the iron plate.

[0012] The present invention is further provided with a third sealing gasket between the top seat and the base to ensure the sealing between the top seat and the base.

[0013] The present invention is further configured such that a countersunk groove is provided at the top of the top seat and at the position corresponding to the second screw, and the screw head of the second screw is located inside the countersunk groove.

[0014] The present invention is further configured such that rubber sleeves are inserted inside the multiple countersunk grooves, which facilitates the securing of the second screw and also provides a certain degree of insulation.

[0015] The present invention is further configured such that a limiting groove is provided on the fixing ring, and a limiting strip is fixedly connected to the bottom end of the first sealing gasket and the two sealing rings to limit the position of the first sealing gasket.

[0016] The present invention is further configured such that the fixing mechanism includes a bidirectional screw and two locking plates, the fixing base is provided with a mounting groove adapted to the base, the side end of the mounting groove is provided with a U-shaped groove, the bidirectional screw is located inside the U-shaped groove, the bidirectional screw is rotatably connected to the fixing base, the external of the bidirectional screw is symmetrically threaded with two sliding plates, both sliding plates are slidably engaged with the U-shaped groove, the two locking plates are respectively fixedly connected to the two sliding plates, the base is provided with two locking slots that engage with the locking plates, and the fixing base is rotatably connected with a handle, the handle is fixedly connected to the bidirectional screw, which facilitates the disassembly and replacement of the electromagnetic switch body.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides an electromagnetic power master switch, which has the following advantages:

[0019] 1. Secure the protective cover to the spacer using two first screws. The protective cover covers the outside of the two terminals, protecting them from damage caused by objects falling on them. It also prevents conductive objects from falling on the terminals and causing the circuits connected to the terminals to become connected, thus preventing the corresponding equipment from starting automatically and avoiding certain safety hazards.

[0020] 2. A second sealing gasket is fixedly connected to the top of the spacer to ensure the seal between the protective cover and the spacer. A first sealing gasket is provided between the protective cover and the fixing ring to ensure the seal between the protective cover and the fixing ring. The connecting wire connected to the terminal block is pushed through the inside of the sealing ring. At the same time, when the protective cover and the fixing ring are squeezed, the side end of the sealing ring is pressed against the side wall of the connecting wire and the wire hole, ensuring the seal between the sealing ring and the wire hole and the connecting wire. This prevents water from entering the inside of the protective cover, prevents water from contacting the terminal block and the nut screwed on the terminal block, prevents corrosion and damage to the terminal block and nut, ensures its service life, and facilitates disassembly.

[0021] 3. By rotating the throttle and the double-acting screw clockwise, the double-acting screw rotates clockwise, causing the two slide plates to move to both sides. The two slide plates drive the two clamping plates to move, moving the slide plates and clamping plates into the U-shaped groove, separating the clamping plates from the groove. This makes it easier to pull the electromagnetic switch body out of the mounting groove, avoiding the need to remove multiple small bolts to disassemble the electromagnetic switch body, improving the convenience of disassembling the electromagnetic switch body, saving time, and increasing the efficiency of replacing the electromagnetic switch body. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the front structure of the electromagnetic power switch in this utility model;

[0023] Figure 2 This is a structural diagram showing the connection between the electromagnetic switch body, the fixing ring, the spacer, and the two terminals in this utility model.

[0024] Figure 3 This is a structural diagram showing the connection between the base, top seat, fixing ring, and multiple second screws in this utility model.

[0025] Figure 4 This is a structural diagram showing the connection between the base, the third sealing gasket, and the electromagnetic coil in this utility model;

[0026] Figure 5 This is a structural diagram showing the assembly of the top seat, iron plate, two terminal blocks, two first copper plates, and a second copper plate in this utility model.

[0027] Figure 6 This is a structural diagram showing the assembly of the fixed base, bidirectional screw, sliding plate, and clamping plate in this utility model.

[0028] Figure 7 This is a schematic diagram of the connection between the first sealing gasket and the limiting strip in this utility model;

[0029] Figure 8 This is a schematic diagram of the structure of the top seat, two terminal posts, two first copper plates and the limiting post in this utility model.

[0030] In the diagram: 1. Fixing base; 2. Mounting hole; 3. Terminal block; 4. Spacer; 5. Protective cover; 6. Fixing ring; 7. Wire threading port; 8. First sealing gasket; 9. Sealing ring; 10. Second sealing gasket; 11. Base; 12. Top seat; 13. Electromagnetic coil; 14. Wiring port; 15. Connecting plate; 16. Second screw; 17. First copper plate; 18. Fixing rod; 19. Iron plate; 20. Second copper plate; 21. Round plate; 22. Compression spring; 23. Limiting post; 24. Third sealing gasket; 25. Countersunk groove; 26. Rubber sleeve; 27. Limiting groove; 28. Limiting strip; 29. ​​Bidirectional screw; 30. Clamping plate; 31. Mounting groove; 32. U-shaped groove; 33. Slide plate; 34. Slot; 35. Throttle; 36. First screw. Detailed Implementation

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0033] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0034] Please see Figures 1-8 An electromagnetic power switch includes a mounting base 1 with multiple mounting holes 2. Screws are passed through the mounting holes 2 to fix the mounting base 1. An electromagnetic switch body is connected to the mounting base 1 via a fixing mechanism. The electromagnetic switch body has two terminals 3, and a spacer 4 is located between the two terminals 3. A protective cover 5 is connected to the spacer 4 via two first screws 36 (stainless steel screws). A fixing ring 6 is fixedly connected to the side of the electromagnetic switch body. Two wire through holes 7 are provided at the connection position between the fixing ring 6 and the protective cover 5. A first sealing gasket 8 is provided between the fixing ring 6 and the protective cover 5. A limit groove 27 is provided on the fixing ring 6. A limit strip 28 is fixedly connected to the bottom of the first sealing gasket 8 and the two sealing rings 9. The inner diameter of the sealing ring 9 is adapted to the outer diameter of the connecting wire on the terminal, which can seal and tighten the connecting wire and limit the first sealing gasket 8. A sealing ring 9 is provided on the first sealing gasket 8 at the position corresponding to the two wire through holes 7. A second sealing gasket 10 is fixedly connected to the top of the spacer 4.

[0035] Specifically, the protective cover 5 is fixed to the spacer 4 using two first screws 36, thus covering the two terminals 3. The protective cover 5 protects the two terminals 3 from damage caused by objects falling on them, and also prevents conductive objects from connecting the two terminals 3 and causing the corresponding equipment to start automatically, thus avoiding potential safety hazards. A second sealing gasket 10 is fixedly connected to the top of the spacer 4 to ensure a tight seal between the protective cover 5 and the spacer 4. A first sealing gasket 8 is provided between the cover 5 and the fixing ring 6 to ensure the sealing of the connection between the protective cover 5 and the fixing ring 6. The connecting wire connected to the terminal 3 is squeezed from inside the sealing ring 9. At the same time, the side end of the sealing ring 9 is pressed against the side wall of the connecting wire and the wire hole 7 by the compression of the protective cover 5 and the fixing ring 6, ensuring the sealing between the sealing ring 9 and the wire hole 7 and the connecting wire. This prevents water from entering the interior of the protective cover 5, prevents water from contacting the terminal 3 and the nut screwed on the terminal 3, prevents corrosion and damage to the terminal 3 and the nut, ensures its service life, and facilitates disassembly.

[0036] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 8 The electromagnetic switch body includes a base 11 and a top mount 12. An electromagnetic coil 13 is installed inside the base 11. A wiring port 14 is installed on the side of the base 11, and two connecting plates 15 electrically connected to the electromagnetic coil 13 are installed inside the wiring port 14. The top mount 12 is connected to the base 11 by multiple second screws 16. A third sealing gasket 24 is provided between the top mount 12 and the base 11 to ensure a tight seal. Countersunk grooves 25 are provided at the top of the top mount 12 corresponding to the positions of the second screws 16. The screw heads of the second screws 16 are located inside the countersunk grooves 25. Rubber sleeves 26 are inserted into the multiple countersunk grooves 25 to easily secure the second screws 16 and provide a certain degree of insulation. The top seat 12 is fixedly connected to two terminals 3 and fixedly connected to a fixing ring 6. One end of each terminal 3 extending into the top seat 12 is fixedly connected to a first copper plate 17. Four fixing rods 18 are fixedly connected inside the top seat 12. An iron plate 19 is slidably mounted on the outside of the four fixing rods 18. A limit post 23 is fixedly connected to the top of the top seat 12 to position the iron plate 19. A second copper plate 20 that cooperates with the two first copper plates 17 is fixedly connected to the bottom of the iron plate 19. A circular plate 21 is installed at the bottom of each of the four fixing rods 18. A compression spring 22 is sleeved on the outside of each of the four fixing rods 18. The two ends of the compression spring 22 are respectively pressed against the iron plate 19 and the circular plate 21.

[0037] Specifically, the terminal 14 is sealed to the external compatible connector plug, so that the electromagnetic coil 13 is electrically connected to the external circuit. When the circuit of the electromagnetic coil 13 is connected, the electromagnetic coil 13 is energized and generates magnetism. The attraction force of the electromagnetic coil 13 on the iron plate 19 is greater than the compression force of the multiple compression springs 22, so that the iron plate 19 and the second copper plate 20 move closer to the two first copper plates 17, so that the second copper plate 20 contacts the two first copper plates 17, so that the two terminals 3 are connected, and the circuit connected to the two terminals 3 is connected, so that the corresponding equipment is started. When the circuit of the electromagnetic coil 13 is disconnected, the multiple compression springs 22 push the iron plate 19 and the second copper plate 20 to move, so that the second copper plate 20 separates from the two second copper plates 20, and the circuit between the two terminals 3 is disconnected.

[0038] Please see Figure 6The fixing mechanism includes a bidirectional screw 29 and two locking plates 30. The fixing base 1 is provided with a mounting groove 31 that matches the base 11. The side end of the mounting groove 31 is provided with a U-shaped groove 32. The bidirectional screw 29 is located inside the U-shaped groove 32 and is rotatably connected to the fixing base 1. The external of the bidirectional screw 29 is symmetrically threaded with two sliding plates 33. Both sliding plates 33 are slidably engaged with the U-shaped groove 32. The two locking plates 30 are fixedly connected to the two sliding plates 33 respectively. The base 11 is provided with two locking slots 34 that engage with the locking plates 30. The fixing base 1 is rotatably connected with a handle 35, which is fixedly connected to the bidirectional screw 29, facilitating the disassembly and replacement of the electromagnetic switch body.

[0039] Specifically, the base 11 is inserted into the mounting slot 31, and then the handle 35 and the double-acting screw 29 are rotated counterclockwise. The counterclockwise rotation of the double-acting screw 29 moves the two sliding plates 33 toward the center, causing the two retaining plates 30 to be inserted into the two retaining slots 34 respectively, thereby fixing the electromagnetic switch body on the mounting base 1. By rotating the handle 35 and the double-acting screw 29 clockwise, the double-acting screw 29 moves the two sliding plates 33 to the sides. The two sliding plates 33 drive the two retaining plates 30 to move, moving the sliding plates 33 and retaining plates 30 into the U-shaped groove 32, separating the retaining plates 30 from the retaining slots 34, making it easier to pull the electromagnetic switch body out of the mounting slot 31. This avoids the need to remove multiple small bolts to disassemble the electromagnetic switch body, improving the convenience of disassembling the electromagnetic switch body, saving time, and increasing the efficiency of replacing the electromagnetic switch body.

[0040] In summary, when using the overall equipment:

[0041] The protective cover 5 is fixed to the spacer 4 by two first screws 36, thus covering the outside of the two terminals 3. The protective cover 5 protects the two terminals 3 from damage caused by objects falling on them, and also prevents conductive objects from landing on them and causing the wiring between the two terminals 3 to become connected, thus preventing automatic start-up of the corresponding equipment and avoiding potential safety hazards. A second sealing gasket 10 is fixedly connected to the top of the spacer 4 to ensure a tight seal between the protective cover 5 and the spacer 4. A first sealing gasket 8 is provided between the protective cover 5 and the fixing ring 6 to ensure the sealing of the connection between the protective cover 5 and the fixing ring 6. The connecting wire connected to the terminal 3 is squeezed from inside the sealing ring 9. At the same time, the side end of the sealing ring 9 is pressed against the side wall of the connecting wire and the wire hole 7 by the compression of the protective cover 5 and the fixing ring 6, ensuring the sealing between the sealing ring 9 and the wire hole 7 and the connecting wire. This prevents water from entering the interior of the protective cover 5, prevents water from contacting the terminal 3 and the nut screwed on the terminal 3, prevents corrosion and damage to the terminal 3 and the nut, ensures its service life, and facilitates disassembly.

[0042] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. An electromagnetic main power switch, including a fixed base (1), characterized in that: The mounting base (1) is provided with multiple mounting holes (2). The mounting base (1) is connected to the electromagnetic switch body through a fixing mechanism. The electromagnetic switch body is provided with two terminals (3). A spacer seat (4) is provided between the two terminals (3). A protective cover (5) is connected to the spacer seat (4) through two first screws (36). A fixing ring (6) is fixedly connected to the side end of the electromagnetic switch body. Two wire holes (7) are provided at the position where the fixing ring (6) connects to the protective cover (5). A first sealing gasket (8) is provided between the fixing ring (6) and the protective cover (5). A sealing ring (9) is provided on the first sealing gasket (8) at the position corresponding to the two wire holes (7). A second sealing gasket (10) is fixedly connected to the top of the spacer seat (4).

2. The electromagnetic power switch according to claim 1, characterized in that: The electromagnetic switch body includes a base (11) and a top plate (12). An electromagnetic coil (13) is installed inside the base (11). A wiring port (14) is installed on the side of the base (11). Two connecting plates (15) electrically connected to the electromagnetic coil (13) are installed inside the wiring port (14). The top plate (12) is connected to the base (11) by multiple second screws (16). The top plate (12) is fixedly connected to two terminals (3). The top plate (12) is fixedly connected to a fixing ring (6). The two terminals (3) extend to the top plate (12). 12) One end of each of the four fixed rods (18) is fixedly connected to a first copper plate (17). The top seat (12) is fixedly connected to four fixed rods (18). An iron plate (19) is slidably arranged on the outside of the four fixed rods (18). The bottom end of the iron plate (19) is fixedly connected to a second copper plate (20) that cooperates with the two first copper plates (17). A round plate (21) is installed on the bottom end of each of the four fixed rods (18). A compression spring (22) is sleeved on the outside of each of the four fixed rods (18). The two ends of the compression spring (22) are respectively pressed against the iron plate (19) and the round plate (21).

3. The electromagnetic power switch according to claim 2, characterized in that: The top of the top seat (12) is fixedly connected to a limiting post (23).

4. The electromagnetic power switch according to claim 2, characterized in that: A third sealing gasket (24) is provided between the top seat (12) and the base (11).

5. The electromagnetic power switch according to claim 2, characterized in that: The top of the top seat (12) and the position corresponding to the second screw (16) are both provided with countersunk grooves (25).

6. The electromagnetic power switch according to claim 5, characterized in that: Rubber sleeves (26) are inserted inside each of the multiple countersunk grooves (25).

7. The electromagnetic power switch according to claim 1, characterized in that: The fixed ring (6) is provided with a limiting groove (27), and the first sealing gasket (8) is fixedly connected to the bottom end of the two sealing rings (9) with a limiting strip (28).

8. The electromagnetic power switch according to claim 2, characterized in that: The fixing mechanism includes a bidirectional screw (29) and two clamping plates (30). The fixing base (1) is provided with an installation groove (31) that is compatible with the base (11). The side end of the installation groove (31) is provided with a U-shaped groove (32). The bidirectional screw (29) is located inside the U-shaped groove (32). The bidirectional screw (29) is rotatably connected to the fixing base (1). The outside of the bidirectional screw (29) is symmetrically threaded with two sliding plates (33). Both sliding plates (33) are slidably engaged with the U-shaped groove (32). The two clamping plates (30) are fixedly connected to the two sliding plates (33) respectively. The base (11) is provided with two clamping slots (34) that are engaged with the clamping plates (30). The fixing base (1) is rotatably connected with a throttle (35). The throttle (35) is fixedly connected to the bidirectional screw (29).

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