Circuit breaker with novel electromagnetic structure action

Abstract

The utility model discloses a circuit breaker with a novel electromagnetic structure action, which comprises a shell, the shell is in a concave design, a push knob is rotatably arranged on the outer surface of the shell, a clamping block is arranged at one end of the shell close to a groove, a protection frame is fixedly arranged in the shell, and the protection frame is fixedly connected with the push knob. A magnetic sliding mechanism is arranged in the protection frame, and incoming and outgoing lines can be connected with each other through the magnetic sliding mechanism. According to the circuit breaker with the novel electromagnetic structure action, the sliding insertion rod is arranged in the coil, so that the electromagnetic structure can be more compact, after the coil is electrified, the fixed iron core can convert electric power into magnetic force, the fixed iron core attracts the movable iron core, the sliding insertion rod moves in the protection frame, and the movable iron core can move in the protection frame. And the connecting contact plate is driven to be in contact with the outer surfaces of the wire outlet ends, so that the wire outlet ends are communicated with one another, the electromagnetic structure can be more compact, the space is saved, and the heat dissipation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to a circuit breaker with a novel electromagnetic structure action. Background Technique

[0002] With the development of electric power and the improvement of electric power technology, along with the rapid development of the national economy and the acceleration of the urbanization process, the technology of circuit switches has also been continuously improved. When the circuit is operating, a circuit breaker can magnetize an electromagnet with electric current, and the magnetic force generated by the electromagnet will increase with the increase of the current. However, in the existing circuit breakers, the coils are wound together and carry a contact plate for connection, but this design occupies a relatively large space inside the circuit breaker, making the structure relatively compact and having a poor heat dissipation effect. Content of the Utility Model

[0003] The purpose of the utility model is to provide a circuit breaker with a novel electromagnetic structure action, so as to solve the problem of poor heat dissipation caused by the large space occupied by the coil in the above-mentioned background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A circuit breaker with a novel electromagnetic structure action, including a housing, the housing is designed in a concave shape, and inlet and outlet lines are fixedly installed at both ends of the housing, and clamping blocks are arranged on the outer surface of the inlet and outlet lines. A push knob is rotatably installed on the outer surface of the housing, and one end of the push knob is located outside the housing. A clamping block is arranged at one end of the housing close to the groove. A protective frame is fixedly installed inside the housing, and a magnetic sliding mechanism is arranged inside the protective frame, and the inlet and outlet lines can be connected to each other through the magnetic sliding mechanism.

[0005] Preferably, the magnetic sliding mechanism includes: a coil, the coil is fixedly arranged inside the protective frame, and a sliding insertion rod penetrates through the outer surface of the protective frame. A fixed iron core is fixedly installed inside the coil, and the inner surface of the fixed iron core is attached to the outer surface of the sliding insertion rod, and the sliding insertion rod and the fixed iron core are concentrically designed. A moving iron core is fixedly installed on the outer surface of the sliding insertion rod, and the outer surface of the moving iron core is attached to the outer surface of the fixed iron core. A connection contact plate is fixedly installed on the outer surface of one end of the sliding insertion rod, and one end of the connection contact plate is attached to the inlet and outlet line. A wire outlet end is fixedly arranged inside the housing, and the wire outlet end is attached to the outer surface of the connection contact plate.

[0006] Adopting the above technical solution, when the coil is energized, the fixed iron core will generate a magnetic force, and the moving iron core will be adsorbed by the magnetism generated by the fixed iron core, so that the sliding insertion rod can drive the connection contact plate to move, so that the connection contact plate can move and contact the wire outlet end to conduct electricity, and the design of the sliding insertion rod and the connection contact plate reduces the occupied space of the electromagnetic structure.

[0007] Preferably, the protective frame is engaged with the sliding insertion rod, and the sliding insertion rod is slidably connected to the protective frame. A positioning elastic sleeve is installed on the outer surface of the sliding insertion rod, and the outer surface of the positioning elastic sleeve fits with the outer surface of the sliding insertion rod. The outer surface of the positioning elastic sleeve fits with the outer surface of the protective frame.

[0008] With the above technical solution, through the engagement design of the protective frame and the sliding insertion rod, the connection contact plate can be prevented from shifting during movement, enabling the connection contact plate to accurately contact the outgoing line terminal during movement.

[0009] Preferably, a sliding and pushing mechanism is provided between the outer shell and the pushing knob. Through the sliding and pushing mechanism, the coil can be powered on, allowing the incoming and outgoing lines to be electrically connected.

[0010] With the above technical solution, the coil can be powered on, and the sliding insertion rod can be moved.

[0011] Preferably, the sliding and pushing mechanism includes: a fixed contact plate, which is fixedly installed inside the outer shell and is connected to the circuit of the coil. A movable contact plate is slidably installed inside the fixed contact plate and is connected to the incoming and outgoing lines. The coil is connected to another incoming and outgoing line. The fixed contact plate contacts the movable contact plate. A protruding block is fixedly installed on the side surface of the pushing knob, and the outer surface of the protruding block fits with the outer surface of the movable contact plate.

[0012] With the above technical solution, the rotation of the pushing knob will drive the protruding block to rotate, causing the protruding block to push the movable contact plate to move, making the movable contact plate contact the fixed contact plate, enabling the circuit to be connected through the incoming and outgoing lines, and allowing the coil to be powered on.

[0013] Preferably, a push rod is slidably installed inside the outer shell, and a positioning and pushing block is fixedly installed at one end of the push rod inside the outer shell. The positioning and pushing block is designed to be inclined. A relaxation block is provided inside the outer shell and is fixedly installed at one end of the sliding insertion rod. The relaxation block fits with the positioning and pushing block.

[0014] With the above technical solution, when a fault occurs in the coil, resulting in the fixed iron core and the movable iron core being adsorbed and unable to separate, the connection contact plate and the outgoing line terminal will be unable to separate. At this time, the push rod can be pushed to move, driving the positioning and pushing block to move forward, causing the positioning and pushing block to push the relaxation block upward, forcibly separating the connection contact plate and the outgoing line terminal to disconnect the circuit, reducing the situation where the circuit cannot be disconnected when a fault occurs in the coil.

[0015] Preferably, the outer surface of the push knob is provided with a groove, and an elastic positioning pin is arranged on the side surface of the push knob. The elastic positioning pin is engaged with the outer surface of the housing. An elastic bracket is engaged and installed inside the housing, and the elastic bracket is engaged with the groove of the push knob.

[0016] With the above technical solution, through the elastic bracket and the groove on the outer surface of the push knob, the push knob can be fixed after rotation, and the fixing of the push knob is strengthened by the elastic positioning pin.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: The circuit breaker with a novel electromagnetic structure action:

[0018] 1. By arranging the sliding rod inside the coil, the electromagnetic structure can be made more compact. After the coil is energized, the fixed iron core will convert electric power into magnetic force, so that the fixed iron core will adsorb the moving iron core, making the sliding rod move inside the protective frame, driving the connecting contact plate to contact the outer surface of the outgoing line terminal, enabling the outgoing line terminals to communicate with each other, making the electromagnetic structure more compact, saving space and improving the heat dissipation efficiency;

[0019] 2. When a fault occurs in the coil, resulting in the inability of the fixed iron core and the moving iron core to separate, the push rod can be pushed, so that the push rod moves inside the housing. By the movement of the push rod, the positioning and pushing block moves, making the positioning and pushing block lean towards the relaxation block, so that the relaxation block is pushed to lift the sliding rod, and then the sliding rod can drive the moving iron core to separate the moving iron core from the fixed iron core, making the connecting contact plate separate from the outgoing line terminal, disconnecting the connection between the outgoing line terminal and the incoming and outgoing lines, enabling forced separation when a fault occurs;

[0020] 3. By rotating the push knob, the protruding block can be driven to rotate, so that the protruding block can push the moving contact plate to slide inside the fixed contact plate, enabling the fixed contact plate and the moving contact plate to contact each other to energize the coil. The elastic positioning pin can effectively position the push knob, and the elastic bracket is engaged with the groove of the push knob, so that the push knob can be fixed after being pushed. When the push knob is pushed in place, the elastic bracket will bounce back into the groove of the push knob and make a sound, so that the user knows that the push is in place and the push knob will not displace after rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the housing and the push rod of the present utility model;

[0022] Figure 2 It is a sectional structural schematic diagram of the housing and the push knob of the present utility model;

[0023] Figure 3 It is a three-dimensional structural schematic diagram of the protective frame and the sliding rod of the present utility model;

[0024] Figure 4 This is a three-dimensional structural schematic diagram of the fixed contact plate and the moving contact plate of the present utility model;

[0025] Figure 5 This is a sectional three-dimensional structural schematic diagram of the push knob and the positioning pin of the present utility model;

[0026] Figure 6 This is a sectional three-dimensional structural schematic diagram of the protective frame and the coil of the present utility model.

[0027] In the figure: 1. Outer shell; 2. Push knob; 3. Protruding block; 4. Protective frame; 5. Coil; 6. Fixed iron core; 7. Sliding insertion rod; 8. Moving iron core; 9. Relaxing block; 10. Connecting contact plate; 11. Inlet and outlet lines; 12. Push rod; 13. Positioning and pushing block; 14. Elastic support; 15. Elastic positioning pin; 16. Fixed contact plate; 17. Moving contact plate; 18. Positioning elastic sleeve; 19. Outlet end. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] Please refer to Figures 1-6 , the present utility model provides a technical solution: a circuit breaker with a novel electromagnetic structure action, including an outer shell 1, the outer shell 1 is designed in a concave shape, and inlet and outlet lines 11 are fixedly installed at both ends of the outer shell 1, and a clamping block is arranged on the outer surface of the inlet and outlet lines 11. A push knob 2 is rotatably installed on the outer surface of the outer shell 1, and one end of the push knob 2 is located outside the outer shell 1. A clamping block is arranged at one end of the outer shell 1 close to the groove. A protective frame 4 is fixedly installed inside the outer shell 1, and a magnetic sliding mechanism is arranged inside the protective frame 4, so that the inlet and outlet lines 11 can be connected to each other through the magnetic sliding mechanism.

[0030] The concave shape design of the outer shell 1 can make the outer shell 1 be clamped on the transverse groove, and through the clamping block arranged on the outer surface of the outer shell 1, the outer shell 1 cannot be separated from the transverse groove.

[0031] The magnetic sliding mechanism includes: a coil 5, which is fixedly arranged inside a protective frame 4, and a sliding plug rod 7 is installed through the outer surface of the protective frame 4. A fixed iron core 6 is fixedly installed inside the coil 5, and the inner surface of the fixed iron core 6 is in contact with the outer surface of the sliding plug rod 7. And the sliding plug rod 7 and the fixed iron core 6 are concentrically designed. A moving iron core 8 is fixedly installed on the outer surface of the sliding plug rod 7, and the outer surface of the moving iron core 8 is in contact with the outer surface of the fixed iron core 6. A connecting contact plate 10 is fixedly installed on the outer surface of one end of the sliding plug rod 7, and one end of the connecting contact plate 10 is in contact with an incoming and outgoing line 11. An outgoing line end (19) is fixedly arranged inside the housing 1, and the outgoing line end (19) is in contact with the outer surface of the connecting contact plate 10.

[0032] The coil 5 can be protected by the protective frame 4. And after the coil 5 is powered on and starts, the fixed iron core 6 will generate magnetism, causing the fixed iron core 6 to adsorb the moving iron core 8 to move, making the sliding plug rod 7 drive the moving iron core 8 to move, enabling the connecting contact plate 10 to move along with it and contact the outgoing line end 19, making the incoming and outgoing line 11 communicate with the outgoing line end 19. Through the design of the coil 5 and the sliding plug rod 7, the occupancy rate of magnetic components is reduced and the heat dissipation effect is better.

[0033] The protective frame 4 is engaged with the sliding plug rod 7, and the sliding plug rod 7 is slidably connected to the protective frame 4. A positioning elastic sleeve 18 is installed on the outer surface of the sliding plug rod 7, and the outer surface of the positioning elastic sleeve 18 is in contact with the outer surface of the sliding plug rod 7. The outer surface of the positioning elastic sleeve 18 is in contact with the outer surface of the protective frame 4.

[0034] Through the engagement of the sliding plug rod 7 and the protective frame 4, the sliding plug rod 7 will not rotate during movement, resulting in the connecting contact plate 10 being unable to contact the outgoing line end 19. Through the positioning elastic sleeve 18, the sliding plug rod 7 can be reset after the coil 5 is powered off.

[0035] A sliding and pushing mechanism is arranged between the housing 1 and the pushing knob 2. Through the sliding and pushing mechanism, the coil 5 can be powered on, enabling the incoming and outgoing line 11 to be electrically connected. The sliding and pushing mechanism includes: a fixed contact plate 16, which is fixedly installed inside the housing 1 and is connected to the circuit of the coil 5. A moving contact plate 17 is slidably installed inside the fixed contact plate 16, and the moving contact plate 17 is connected to the incoming and outgoing line 11. The coil 5 is connected to another incoming and outgoing line 11. The fixed contact plate 16 is in contact with the moving contact plate 17. A protruding block 3 is fixedly installed on the side surface of the pushing knob 2, and the outer surface of the protruding block 3 is in contact with the outer surface of the moving contact plate 17.

[0036] When it is necessary to connect the circuit, the rotation of the push knob 2 can be pushed to drive the protruding block 3 to rotate, so that the moving contact plate 17 slides inside the fixed contact plate 16, making the fixed contact plate 16 and the moving contact plate 17 contact each other, enabling the coil 5 to be energized and driving the connecting contact plate 10 to move, so that the incoming and outgoing lines 11 and the outgoing terminal 19 can be connected to each other to establish a connection, allowing the current to move and connect through the outgoing terminal 19 and the incoming and outgoing lines 11, and establishing the connection between the incoming and outgoing lines 11 and the outgoing terminal 19 in an electromagnetic manner.

[0037] A push rod 12 is slidably installed inside the housing 1, and a positioning push block 13 is fixedly installed at one end of the push rod 12 inside the housing 1. The positioning push block 13 is designed to be inclined. A relaxation block 9 is arranged inside the housing 1, and the relaxation block 9 is fixedly installed at one end of the sliding plug rod 7. The relaxation block 9 is in contact with the positioning push block 13.

[0038] When a failure occurs in the coil 5, resulting in the inability to separate between the fixed iron core 6 and the moving iron core 8, the push rod 12 can be pressed to drive the positioning push block 13 to move, so that the positioning push block 13 contacts the relaxation block 9, causing the relaxation block 9 to be pushed and slide upward, separating the fixed iron core 6 and the moving iron core 8 from adsorption, enabling the connecting contact plate 10 and the outgoing terminal 19 to be separated, and disconnecting the connection between the outgoing terminal 19 and the incoming and outgoing lines 11.

[0039] A groove is formed on the outer surface of the push knob 2, and an elastic positioning pin 15 is arranged on the side surface of the push knob 2. The elastic positioning pin 15 is engaged with the outer surface of the housing 1. An elastic bracket 14 is snap-fitted inside the housing 1, and the elastic bracket 14 is engaged with the groove on the push knob 2.

[0040] Through the elastic positioning pin 15 arranged on the side surface of the push knob 2, the elastic positioning pin 15 can assist in positioning during rotation, enabling the push knob 2 to be fixed and reducing displacement after rotating in place. The engagement between the elastic bracket 14 and the groove on the side surface of the push knob 2 can position the push knob 2 again, and the sound generated when the elastic bracket 14 is inserted into the groove of the push knob 2 makes people know that the push knob 2 has been pushed in place and prevents the push knob 2 from displacing.

[0041] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circuit breaker with a novel electromagnetic structure, comprising a housing (1), the housing (1) being of a concave shape, and having inlet and outlet lines (11) fixedly mounted at both ends of the housing (1), and having a block disposed on the outer surface of the inlet and outlet lines (11), a push knob (2) being rotatably mounted on the outer surface of the housing (1), and one end of the push knob (2) being located outside the housing (1), a block being disposed at one end of the housing (1) close to the groove, and a protective frame (4) being fixedly mounted inside the housing (1), characterized in that: A magnetic sliding mechanism is provided inside the protection frame (4), and the inlet and outlet lines (11) can be connected to each other through the magnetic sliding mechanism.

2. A circuit breaker with a novel electromagnetic structure according to claim 1, characterized in that: The magnetic sliding mechanism comprises: a coil (5), the coil (5) being fixedly arranged inside a protection frame (4), and a sliding rod (7) being installed through the outer surface of the protection frame (4); a fixed iron core (6) being fixedly arranged inside the coil (5), and the inner surface of the fixed iron core (6) is in contact with the outer surface of the sliding rod (7), and the sliding rod (7) and the fixed iron core (6) are of concentric design; a moving iron core (8) being fixedly arranged on the outer surface of the sliding rod (7), and the moving iron core (8) is in contact with the outer surface of the fixed iron core (6); a connecting contact plate (10) being fixedly arranged on the outer surface of one end of the sliding rod (7), and one end of the connecting contact plate (10) is in contact with the inlet and outlet lines (11); and an outlet terminal (19) is fixedly arranged inside the housing (1), and the outlet terminal (19) is in contact with the outer surface of the connecting contact plate (10).

3. A circuit breaker with a novel electromagnetic structure according to claim 1, characterized in that: The protection frame (4) is engaged with the sliding rod (7), and the sliding rod (7) and the protection frame (4) are slidably connected. A positioning elastic sleeve (18) is installed on the outer surface of the sliding rod (7), and the outer surface of the positioning elastic sleeve (18) is in contact with the outer surface of the sliding rod (7), and the outer surface of the positioning elastic sleeve (18) is in contact with the outer surface of the protection frame (4).

4. A circuit breaker with a novel electromagnetic structure action according to claim 1, characterized in that: A sliding mechanism is provided between the housing (1) and the push knob (2), and the coil (5) can be connected to a power source through the sliding mechanism, so that the inlet and outlet lines (11) can be electrically connected.

5. A circuit breaker with a novel electromagnetic structure action according to claim 4, characterized in that: The sliding mechanism comprises: a fixed contact plate (16), the fixed contact plate (16) is fixedly mounted inside the housing (1), and the fixed contact plate (16) is connected to the circuit of the coil (5), a moving contact plate (17) is slidably mounted inside the fixed contact plate (16), and the moving contact plate (17) is connected to an inlet and outlet circuit (11), the coil (5) is connected to another inlet and outlet circuit (11), the fixed contact plate (16) is in contact with the moving contact plate (17), and a protruding block (3) is fixedly mounted on the side surface of the push knob (2), and the outer surface of the protruding block (3) is in contact with the outer surface of the moving contact plate (17).

6. A circuit breaker with a novel electromagnetic structure action according to claim 1, characterized in that: A push rod (12) is slidably mounted inside the housing (1), and a positioning push block (13) is fixedly mounted on one end of the push rod (12) located inside the housing (1), and the positioning push block (13) is of inclined design. A relaxation block (9) is arranged inside the housing (1), and the relaxation block (9) is fixedly mounted on one end of the sliding rod (7), and the relaxation block (9) fits the positioning push block (13).

7. A circuit breaker with a novel electromagnetic structure action according to claim 1, characterized in that: The outer surface of the push knob (2) is provided with a groove, and the side surface of the push knob (2) is provided with an elastic positioning pin (15), and the elastic positioning pin (15) is engaged with the outer surface of the shell (1), and an elastic bracket (14) is mounted inside the shell (1), and the elastic bracket (14) is engaged with the groove of the push knob (2).

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