CN214848443U

CN214848443U - Circuit breaker permanent magnetic mechanism

Info

Publication number: CN214848443U
Application number: CN202120778069.2U
Authority: CN
Inventors: 齐东迁; 赵英; 赵启东; 陈光华; 陈硕之
Original assignee: DIANGUANG EXPLOSION-PROOF TECHNOLOGY CO LTD
Current assignee: DIANGUANG EXPLOSION-PROOF TECHNOLOGY CO LTD
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2021-11-23
Anticipated expiration: 2031-04-16

Abstract

The utility model relates to a circuit breaker permanent magnetic mechanism, including the permanent magnetism casing, the permanent magnetism casing includes a permanent magnetism section of thick bamboo, sets up respectively in the front end housing and the rear end cap at a permanent magnetism section of thick bamboo both ends, be provided with combined floodgate coil and separating brake coil and sliding connection in the iron core subassembly of permanent magnetism casing in the permanent magnetism casing, be provided with manual separating brake subassembly on the rear end cap, manual separating brake subassembly is including the manual distribution that slides through the rear end cap, be provided with the elastic component that provides the reseing to the distribution on the rear end cap, the tip that the hand distributes is located the rear end cap when the combined floodgate state. The tip that the hand was distributed is located the rear end cap when the combined floodgate state, and operating personnel pushes away the iron core from the rear end cap through pressing the hand distribution, under the effect of elastic component, because the iron core pushes away can show the decline from magnetic attraction behind the rear end cap for manual quick separating brake is realized to the iron core, has improved the security performance.

Description

Circuit breaker permanent magnetic mechanism

Technical Field

The application relates to the technical field of circuit breakers, in particular to a permanent magnet mechanism of a circuit breaker.

Background

The permanent magnet mechanism is a core structure of an operating mechanism in the circuit breaker and is used for timely and reliably switching on and off the moving contact and the static contact of the circuit breaker so as to break off the connection of the circuit, namely the permanent magnet mechanism can control the circuit breaker to rapidly switch on and switch off, so that the safe operation of a power system is ensured.

Chinese patent No. CN201698917U discloses a permanent magnet mechanism, which includes an upper cover plate, a cylinder, a magnetic ring, a permanent magnet, an iron core, a switching coil, a lower cover plate, and a limit sleeve disposed between the upper cover plate and the iron core, wherein the permanent magnet is disposed in a closed space formed by the limit sleeve, the magnetic ring, the switching coil, and the cylinder.

For the related technologies, the inventor thinks that the permanent magnet mechanism in the related technologies cannot be rapidly opened when the opening coil circuit has a problem, and has potential safety hazards to be improved.

SUMMERY OF THE UTILITY MODEL

In order to improve the security of permanent magnetism mechanism, this application provides a circuit breaker permanent magnetism mechanism.

The application provides a circuit breaker permanent magnetic mechanism adopts following technical scheme:

the utility model provides a circuit breaker permanent magnetic mechanism, includes the permanent magnetism casing, the permanent magnetism casing includes a permanent magnetism section of thick bamboo, sets up respectively in the front end housing and the rear end cap at a permanent magnetism section of thick bamboo both ends, be provided with closing coil and separating brake coil and sliding connection in the iron core subassembly of permanent magnetism casing in the permanent magnetism casing, be provided with manual separating brake subassembly on the rear end cap, manual separating brake subassembly is including the hand distribution that slides through the rear end cap, be provided with the elastic component that the adversary distribution provided the restoration on the rear end cap, the tip that the hand was distributed is located the rear end cap when closing a floodgate the state.

Through adopting above-mentioned technical scheme, the tip of hand distribution is located the rear end cap when the combined floodgate state, and operating personnel pushes away the iron core from the rear end cap through pressing the hand distribution, under the effect of elastic component, because the iron core pushes away the magnetic attraction can show the decline after the rear end cap for manual quick separating brake is realized to the iron core, has improved the security performance.

Optionally, flexible groove has been seted up to the lateral wall of rear end cap, the tank bottom in flexible groove runs through the through-hole that supplies the hand to distribute to wear to establish, the tip that the hand distribution deviates from iron core subassembly is provided with the stopper, the elastic component sets up between the tank bottom of stopper and flexible groove.

Through adopting above-mentioned technical scheme, through the setting of stopper, improved the flexible stability of hand distribution and be convenient for it resets.

Optionally, the elastic member is a hand separating spring, and the hand separating spring is sleeved on the outside of the hand separating pin.

Through adopting above-mentioned technical scheme for the hand divides the spring can provide stable restoring force, and stable in structure for the hand distribution.

Optionally, the upper end face of rear end cover is provided with the axle bed, the groove of stepping down has been seted up to the lower terminal surface of axle bed, the stopper is located the groove of stepping down when initial condition, the rotation hole that is linked together with the groove of stepping down is seted up to the lateral wall of axle bed, the rotation downthehole rotation of rotation is connected with the hand branch axle, the hand is divided the axle and is seted up the butt groove in the lateral wall of the inslot of stepping down, the tank bottom in butt groove and the terminal surface looks butt of stopper.

Through adopting above-mentioned technical scheme, the stopper is located the inslot of stepping down and provides the activity space for the stopper, and the tank bottom in butt groove and the terminal surface looks butt of stopper make the stopper have better stability and location, and the staff makes the tank bottom in butt groove take place the slope and then pushes down the stopper through rotating hand minute shaft, can promote hand distribution and stretch out downwards and accomplish manual separating brake.

Optionally, the groove bottom of the abutting groove is in a horizontal state in the initial state, and the end face of the limiting block is attached to the groove bottom of the abutting groove.

Through adopting above-mentioned technical scheme, can further improve the stability of stopper, and can exert the holding down force to the stopper the very first time when rotating the hand split axle, improve the separating brake speed.

Optionally, an operation groove communicated with the rotation hole is formed in the upper end face of the shaft seat, and a swing rod extending out of the operation groove is arranged on the side wall of the hand split shaft.

Through adopting above-mentioned technical scheme, can realize the action of pushing down of hand distribution through swing pendulum rod, the operation of being convenient for more.

Optionally, the hand split shaft is provided with a mounting groove on a side wall in the operating groove, the swing rod is arranged at the bottom of the mounting groove, and a plane where the bottom of the mounting groove is located is parallel to a plane where the bottom of the abutting groove is located.

Through adopting above-mentioned technical scheme, the installation of the pendulum rod of being convenient for is convenient for simultaneously more be convenient for through the position recognition butt joint groove's of the position state of tank bottom of pendulum rod.

Optionally, the iron core subassembly includes the iron core body, one side that the iron core body deviates from manual separating brake subassembly is provided with the branch brake axle, the branch brake axle runs through front end housing to the permanent magnetism casing outside, the one end of branch brake axle in the permanent magnetism casing outside is provided with spring gland, the epaxial cover of branch brake is equipped with the separating brake spring that is located between spring gland and the front end housing.

Through adopting above-mentioned technical scheme, iron core body and rear end cap laminating mutually under the combined floodgate state, the separating brake spring is compressed this moment, when operating personnel carries out manual separating brake, can effectively improve just opening speed under separating brake spring's combined action.

Optionally, a positioning cover is arranged on the front end cover, the positioning cover and the spring gland are both arranged in a step shape, and two ends of the opening spring are respectively abutted to step faces of the spring gland and the positioning cover.

Through adopting above-mentioned technical scheme, effectively improve the stability of separating brake spring to ensure that it provides stable elastic restoring force.

In summary, the present application includes at least one of the following beneficial technical effects:

the end part of the hand distribution pin is positioned in the rear end cover in a closing state, an operator pushes the iron core away from the rear end cover through the pressing hand distribution pin, and under the action of the elastic piece, the magnetic attraction force is obviously reduced after the iron core is pushed away from the rear end cover, so that the iron core is manually and quickly switched off, and the safety performance is improved;

the limiting block is positioned in the abdicating groove to provide a moving space for the limiting block, the groove bottom of the butting groove is butted with the end face of the limiting block, so that the limiting block has better stability and positioning, and a worker can push the hand distribution pin to extend downwards to complete manual opening by rotating the hand separating shaft to incline the groove bottom of the butting groove and further press the limiting block;

the iron core body is attached to the rear end cover in a closing state, the opening spring is compressed, and when an operator performs manual opening, the rigid opening speed can be effectively improved under the combined action of the opening spring.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

Fig. 2 is a cross-sectional view of an embodiment of the present application.

Fig. 3 is an enlarged schematic view of region B in fig. 2.

Fig. 4 is an enlarged schematic view of region a in fig. 1.

Fig. 5 is a schematic structural view of fig. 4 with the shaft seat removed.

Description of reference numerals: 1. a permanent magnet housing; 11. a permanent magnet drum; 12. a front end cover; 13. a rear end cap; 2. a closing coil; 3. a brake separating coil; 4. an iron core assembly; 41. an iron core body; 42. a brake separating shaft; 43. a spring gland; 44. a brake separating spring; 45. a positioning cover; 5. a manual brake-separating component; 51. hand distribution; 52. a limiting block; 53. a hand separating spring; 54. a shaft seat; 55. separating the shaft by hand; 56. a swing rod; 6. a telescopic groove; 7. a yielding groove; 8. a butt joint groove; 9. an operation slot; 10. and (4) mounting the groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a circuit breaker permanent magnetic mechanism. Referring to fig. 1 and 2, the circuit breaker permanent magnet mechanism includes a permanent magnet housing 1, where the permanent magnet housing 1 includes a permanent magnet barrel 11, and a front end cover 12 and a rear end cover 13 fixedly connected to two ends of the permanent magnet barrel 11, respectively. Two ends in the permanent magnet cylinder 11 are respectively and fixedly connected with a closing coil 2 and an opening coil 3, and an iron core component 4 is slidably connected in the permanent magnet cylinder 11.

Referring to fig. 1 and 2, the core assembly 4 includes a core body 41 slidably connected in the permanent magnet drum 11, a brake separating shaft 42 is fixedly connected to one side of the core body 41 facing the front end cover 12, and the brake separating shaft 42 penetrates through the front end cover 12 to the outside of the permanent magnet drum 11. The end part of the opening shaft 42 outside the permanent magnet barrel 11 is fixedly sleeved with a spring gland 43, and the opening shaft 42 is sleeved with an opening spring 44 between the spring gland 43 and the front end cover 12. The end face of the front end cover 12 is fixedly connected with a positioning cover 45, the positioning cover 45 and the spring gland 43 are both arranged in a step shape and are opposite in position, and two ends of the opening spring 44 respectively abut against the step faces of the spring gland 43 and the positioning cover 45. In the closing state, the opening spring 44 is compressed, and when opening operation is performed, rapid opening can be realized under the elastic force of the opening spring 44.

Referring to fig. 1 and 3, the rear end cover 13 is provided with a manual opening assembly 5, the outer end face of the rear end cover 13 is provided with a telescopic groove 6, and a through hole communicated with the interior of the permanent magnet cylinder 11 penetrates through the groove bottom of the telescopic groove 6. The manual opening and closing assembly 5 comprises a hand distribution pin 51 connected in the through hole in a sliding mode, the end of the hand distribution pin 51 is located in the rear end cover 13 in a closing state, a limiting block 52 connected in the telescopic groove 6 in a sliding mode is fixedly connected to the upper end face of the hand distribution pin 51, and the cross section shape of the limiting block 52 is the same as the opening shape of the telescopic groove 6. The hand distribution pin 51 is sleeved with a hand distribution spring 53, and two ends of the hand distribution spring 53 are respectively abutted against the side wall of the limiting block 52 and the groove bottom of the telescopic groove 6.

Referring to fig. 1 and 4, the manual opening assembly 5 further includes a shaft seat 54 fixedly connected to the outer end surface of the rear end cover 13, the lower end surface of the shaft seat 54 is provided with a yielding groove 7 right above the telescopic groove 6, a rotating hole communicated with the yielding groove 7 penetrates through the side wall of the shaft seat 54, and a manual opening shaft 55 is rotatably connected in the rotating hole.

Referring to fig. 3 and 4, the hand separating shaft 55 is provided with a contact groove 8 on the side wall in the receding groove 7, and the bottom of the contact groove 8 is horizontal in the initial state and contacts and fits with the upper end surface of the stopper 52. The upper end surface of the shaft seat 54 is provided with an operation groove 9 communicated with the rotating hole, the side wall of the hand sub-shaft 55 in the operation groove 9 is provided with a mounting groove 10, and the bottom of the mounting groove 10 is fixedly connected with a swing rod 56 extending out of the operation groove 9.

Referring to fig. 1 and 5, a plane where the bottom of the mounting groove 10 is located is parallel to a plane where the abutting groove 8 is located, the swing rod 56 is perpendicular to the bottom of the mounting groove 10, that is, the swing rod 56 is in a vertical state, that is, the manual opening assembly 5 is reset to an initial state, and the opening spring 44 also pushes the limiting block 52 upwards in the elastic resetting process, which is beneficial to improving the resetting speed of the manual opening shaft 55.

The implementation principle of the circuit breaker permanent magnetic mechanism in the embodiment of the application is as follows:

in the closing state, the core body 41 and the rear end cap 13 are magnetically attached to each other, and the opening spring 44 is in a compressed state. When manual switching-off is needed, the swing rod 56 is rotated to drive the hand-separating shaft 55 to rotate in the circumferential direction, the rotation of the hand-separating shaft 55 can drive the groove bottom of the butt groove 8 to be changed from a horizontal state to an inclined state, namely, the swing rod 56 rotates in any direction to enable the groove bottom of the butt groove 8 to incline and extrude the limiting block 52 downwards, and then the elastic force of the hand-separating spring 53 is overcome to push the hand-separating pin 51 to move towards the iron core body 41. The hand distribution pin 51 pushes the iron core body 41 away from the rear end cover 13 in the displacement process, when the iron core body 41 and the rear end cover 13 are separated from the attaching state, the magnetic attraction between the iron core body 41 and the rear end cover 13 is remarkably reduced, the iron core body 41 is rapidly moved towards the front end cover 12 by the aid of the elasticity of the matched brake separating spring 44, and accordingly rapid brake separation is achieved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a circuit breaker permanent magnetic mechanism, includes permanent magnetism casing (1), permanent magnetism casing (1) includes a permanent magnetism section of thick bamboo (11), sets up respectively in front end housing (12) and rear end cap (13) at a permanent magnetism section of thick bamboo (11) both ends, be provided with closing coil (2) and separating brake coil (3) and sliding connection in permanent magnetism casing (1) iron core subassembly (4), its characterized in that in permanent magnetism casing (1): be provided with manual separating brake subassembly (5) on rear end cap (13), manual separating brake subassembly (5) are including sliding hand distribution (51) that runs through rear end cap (13), be provided with the elastic component that provides the reseing to hand distribution (51) on rear end cap (13), the tip of hand distribution (51) is located rear end cap (13) when closing a floodgate the state.

2. A circuit breaker permanent magnet mechanism according to claim 1, wherein: flexible groove (6) have been seted up to the lateral wall of rear end cap (13), the tank bottom of flexible groove (6) runs through the through-hole that supplies hand distribution (51) to wear to establish, the tip that hand distribution (51) deviates from iron core subassembly (4) is provided with stopper (52), the elastic component sets up between the tank bottom of stopper (52) and flexible groove (6).

3. A circuit breaker permanent magnet mechanism according to claim 2, wherein: the elastic piece is set to be a hand separating spring (53), and the hand separating spring (53) is sleeved on the outer side of the hand distributing pin (51).

4. A circuit breaker permanent magnet mechanism according to claim 2, wherein: the up end of rear end cap (13) is provided with axle bed (54), the groove of stepping down (7) has been seted up to the lower terminal surface of axle bed (54), stopper (52) are located the groove of stepping down (7) when initial condition, the rotation hole that is linked together with the groove of stepping down (7) is seted up to the lateral wall of axle bed (54), it is connected with hand branch axle (55) to rotate downthehole the rotation, butt groove (8) have been seted up to the lateral wall of hand branch axle (55) in the groove of stepping down (7), the tank bottom of butt groove (8) and the terminal surface looks butt of stopper (52).

5. A circuit breaker permanent magnet mechanism according to claim 4, characterized in that: the tank bottom of butt joint groove (8) is the horizontality when initial condition, the terminal surface of stopper (52) and the tank bottom of butt joint groove (8) are laminated mutually.

6. A circuit breaker permanent magnet mechanism according to claim 5, characterized in that: an operation groove (9) communicated with the rotating hole is formed in the upper end face of the shaft seat (54), and a swing rod (56) extending out of the operation groove (9) is arranged on the side wall of the hand split shaft (55).

7. A circuit breaker permanent magnet mechanism according to claim 6, characterized in that: the side wall of the hand split shaft (55) in the operation groove (9) is provided with an installation groove (10), the swing rod (56) is arranged at the bottom of the installation groove (10), and the plane where the bottom of the installation groove (10) is located is parallel to the plane where the bottom of the butt joint groove (8) is located.

8. A circuit breaker permanent magnet mechanism according to claim 1, wherein: iron core subassembly (4) include iron core body (41), one side that iron core body (41) deviates from manual separating brake subassembly (5) is provided with minute brake shaft (42), minute brake shaft (42) run through front end housing (12) to permanent magnetism casing (1) outside, minute brake shaft (42) are provided with spring gland (43) in the one end in permanent magnetism casing (1) outside, the cover is equipped with branch brake spring (44) that are located between spring gland (43) and front end housing (12) on minute brake shaft (42).

9. A circuit breaker permanent magnet mechanism according to claim 8, wherein: be provided with location lid (45) on front end housing (12), location lid (45) and spring gland (43) all are the step form setting, conflict respectively on the step face of spring gland (43) and location lid (45) at separating brake spring (44) both ends.