CN217768270U

CN217768270U - Electromagnetic release

Info

Publication number: CN217768270U
Application number: CN202221911051.6U
Authority: CN
Inventors: 仵现
Original assignee: Shanghai Yichun Automation Technology Co ltd
Current assignee: Shanghai Yichun Automation Technology Co ltd
Priority date: 2022-07-20
Filing date: 2022-07-20
Publication date: 2022-11-08
Anticipated expiration: 2032-07-20

Abstract

The utility model relates to an electromagnetic release relates to release technical field, and it includes the base, sets up coil skeleton in the base is around establishing solenoid on the coil skeleton, move the iron core and connect move the dropout ejector pin on the iron core, it slides and sets up to move the iron core in the coil skeleton, it keeps away from to move the iron core the one end of dropout ejector pin is connected with the connecting rod that resets, the one end of connecting rod that resets with it can dismantle fixed connection to move the iron core, the connecting rod that resets is kept away from it wears to establish to move the one end of iron core the base. This application has the effect that improves the electromagnetism release convenience that resets.

Description

Electromagnetic release

Technical Field

The application relates to the technical field of releases, in particular to an electromagnetic release.

Background

When the electromagnetic release obtains a specified action current, the movable iron core of the electromagnetic release can overcome the elasticity of the spring under the action of a magnetic field force, so that the release ejector rod drives an external mechanism (such as a switching-on/off half shaft of the circuit breaker) to act to realize state indication and even cut off a power supply, and the electromagnetic release is an important component in the circuit breaker.

In the related art, a tripping ejector rod of an electromagnetic tripping device is fixedly connected with an external mechanism, and after the electromagnetic tripping device is tripped, the electromagnetic tripping device needs to be reset, generally, the external mechanism is reset to a normal state and then the tripping ejector rod is pulled, so that the tripping ejector rod is reset, and then the electromagnetic tripping device is reset.

However, when the tripping ejector rod is fixedly connected with the external mechanism, when the electromagnetic tripping device needs to be reset, the tripping ejector rod needs to be firstly detached from the external mechanism, which is troublesome and labor-consuming, and has improvement.

SUMMERY OF THE UTILITY MODEL

In order to facilitate resetting of the electromagnetic release, the application provides an electromagnetic release.

The application provides an electromagnetic trip adopts following technical scheme:

the utility model provides an electromagnetic release, includes the base, sets up coil skeleton in the base is around establishing solenoid on the coil skeleton, move the iron core and connect move the dropout ejector pin on the iron core, it slides and sets up to move the iron core in the coil skeleton, it keeps away from to move the iron core the one end of dropout ejector pin is connected with the connecting rod that resets, the one end of connecting rod that resets with it can dismantle fixed connection to move the iron core, the connecting rod that resets is kept away from the one end of moving the iron core is worn to establish the base.

Through adopting above-mentioned technical scheme, because the one end of the connecting rod that resets with move the iron core and be connected, the base is worn out to the other end, after the electromagnetism release was in the dropout state, can be through the operation connecting rod motion that resets outside the base, the connecting rod that resets drives after the motion moves and moves the iron core and reset to the state before the dropout to make the electromagnetism release reset, need not to demolish the operation that resets that can realize the electromagnetism release with external mechanism with the dropout ejector pin, and then improved the convenience that the electromagnetism release resets.

Preferably, one end of the reset connecting rod is provided with a threaded rod, and the threaded rod is in threaded connection with the movable iron core.

Through adopting above-mentioned technical scheme, adopt threaded rod and movable iron core threaded connection's mode, realize the connecting rod that resets and movable iron core's dismantlement fixed, improved the connecting rod that resets and moved the compactness of being connected between the iron core and be convenient for the loading and unloading operation of connecting rod that resets.

Preferably, the end part of the tripping ejector rod is provided with a tripping connecting piece, the tripping connecting piece is provided with a clamping reed, the tripping ejector rod is provided with a clamping groove, and the clamping reed is clamped in the clamping groove.

By adopting the technical scheme, the clamping reed arranged on the tripping connecting piece is connected with the clamping groove arranged on the tripping ejector rod in a clamping matching mode, so that the convenience for mounting the tripping connecting piece and the tripping ejector rod is improved.

Preferably, the base is provided with a bearing convex seat, a first sliding cavity is arranged in the bearing convex seat, a second sliding cavity is arranged in the coil framework, the first sliding cavity is communicated with the second sliding cavity, and the movable iron core is located in the first sliding cavity and the second sliding cavity.

By adopting the technical scheme, on one hand, the first sliding cavity arranged in the bearing convex seat is communicated with the second sliding cavity arranged in the coil framework, so that the structure compactness of the block electromagnetic release is improved; on the other hand, the movable iron core slides between the first sliding cavity and the second sliding cavity, so that the sliding stability of the movable iron core is improved.

Preferably, a magnetic suction piece is arranged in the base, a buffer magnetic conduction piece is arranged on the magnetic suction piece, and the movable iron core is adsorbed on the buffer magnetic conduction piece.

Through adopting foretell technical scheme, when the electromagnetism release was not tripped, solenoid cut off the power supply, moved the iron core and adsorbed on buffering magnetic conduction piece to make the electromagnetism release keep the state of not tripping, and the setting of buffering magnetic conduction piece has reduced and has moved the direct condition emergence of inhaling the piece contact with magnetism of iron core, be convenient for inhale the piece and protect to magnetism.

Preferably, the tripping connecting piece is provided with an avoiding groove, and the bearing convex seat is embedded into the avoiding groove.

By adopting the technical scheme, when the tripping connecting piece moves along the direction close to the bearing convex seat, the bearing convex seat is embedded into the avoiding groove, so that the stability of the tripping connecting piece is improved.

Preferably, a tripping spring is arranged between the tripping connecting piece and the receiving convex base, a mounting table is arranged on the tripping connecting piece, one end of the tripping spring abuts against the side wall of the mounting table, and the other end of the tripping spring abuts against the side wall of the receiving convex base.

By adopting the technical scheme, when the electromagnetic release is not released, the electromagnetic coil is powered off, the release spring is in a compressed state, two ends of the release spring are abutted against the side wall of the mounting table and the side wall of the bearing boss, the attraction force borne by the movable iron core is greater than the elastic force exerted by the release spring, and the movable magnet is adsorbed on the buffer magnetic conduction sheet; when the electromagnetic release is released, the electromagnetic coil is electrified, the attraction force applied to the movable iron core is smaller than the sum of the elastic force applied by the release spring and the electric field force applied after the electromagnetic coil is electrified, the release spring releases energy to enable the movable iron core to move along the direction far away from the buffer magnetic conductive sheet, and the releasing accuracy and stability of the electromagnetic release are improved.

Preferably, a limiting groove is formed in the bearing convex base, and one end, close to the bearing convex base, of the tripping spring is embedded into the limiting groove.

By adopting the technical scheme, the stability of the installation of the tripping spring is improved.

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

1. because one end of the reset connecting rod is connected with the movable iron core, and the other end of the reset connecting rod penetrates out of the base, when the electromagnetic release is in a tripping state, the reset connecting rod can move by operating the reset connecting rod, and the movable iron core is driven to reset to a state before tripping after the reset connecting rod moves, so that the electromagnetic release is reset, the reset operation of the electromagnetic release can be realized without dismounting the tripping ejector rod and the external mechanism, and the reset convenience of the electromagnetic release is further improved;

2. adopt joint reed and joint groove joint complex mode, the one end embedding that the trip spring is close to accepting the convex base between dropout connecting piece and the dropout ejector pin to accept the limiting groove of seting up on the convex base, the later stage of being convenient for is to the dismantlement and the maintenance operation of each spare part.

Drawings

FIG. 1 is a schematic axial view of an embodiment of the present application, which mainly shows the overall structure of an electromagnetic release;

fig. 2 is a sectional view of an embodiment of the present application, which mainly shows an internal connection structure of an electromagnetic release.

Reference numerals are as follows: 1. a base; 2. a coil bobbin; 21. a second sliding chamber; 3. an electromagnetic coil; 4. A movable iron core; 5. tripping the ejector rod; 51. a clamping groove; 6. a reset connecting rod; 61. a threaded rod; 7. a receiving boss; 71. a first sliding chamber; 72. a limiting groove; 73. avoiding the groove; 8. a magnetic attraction area; 81. a magnetic member; 82. buffering magnetic conductive sheets; 9. tripping the connecting piece; 91. limiting slotted holes; 92. clamping the reed; 93. a mounting table; 10. and a tripping spring.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses an electromagnetic release.

Referring to fig. 1 and 2, an electromagnetic release comprises a base 1, a coil frame 2, an electromagnetic coil 3, a movable iron core 4 and a release ejector rod 5, wherein the base 1 is integrally U-shaped, a mounting area is formed in the middle of the base 1, the coil frame 2 is located in the mounting area, and the electromagnetic coil 3 is wound on the coil frame 2. The one end of moving iron core 4 can be dismantled and be fixed with dropout ejector pin 5, and the other end of moving iron core 4 can be dismantled and be fixed with reset connecting rod 6, and base 1 is worn to establish by the one end that reset connecting rod 6 kept away from moving iron core 4. Specifically, one end of the reset connecting rod 6 is fixedly connected or integrally formed with a threaded rod 61, and the threaded rod 61 is in threaded connection with the movable iron core 4.

The bearing convex base 7 is installed on the base 1 in a clamped mode, a first sliding cavity 71 is formed in the bearing convex base 7, a second sliding cavity 21 is formed in the coil framework 2, the first sliding cavity 71 is communicated with the second sliding cavity 21, the movable iron core 4 is arranged between the first sliding cavity 71 and the second sliding cavity 21 in a sliding mode, and the sliding stability of the movable iron core 4 in the tripping process of the electromagnetic release is improved.

Referring to fig. 1 and 2, a magnetic attraction area 8 is formed between the base 1 and the coil bobbin 2, a magnetic attraction member 81 is installed in the magnetic attraction area 8, in this embodiment, the magnetic attraction member 81 is a magnetic flux neodymium magnet, a buffer magnetic conductive plate 82 is installed on the magnetic attraction member 81, and when the electromagnetic release is not released, the movable iron core 4 is attracted to the buffer magnetic conductive plate 82. The arrangement of the buffer magnetic-conducting sheet 82 enables the movable iron core 4 not to directly contact with the magnetic-attracting piece 81, so that the damage to the magnetic-attracting piece 81 caused by the collision contact between the movable iron core 4 and the magnetic-attracting piece 81 is reduced.

Specifically, the trip ejector rod 5 is provided with a clamping groove 51, the clamping groove 51 is annular, the end of the trip ejector rod 5 is provided with the trip connecting piece 9, and the shape of the trip connecting piece 9 is adapted to the shape of the external mechanism and is fixed on the external mechanism. A limit slot 91 is formed on the trip connecting piece 9, and the trip connecting piece 9 is embedded into the limit slot 91 and is in interference fit with the limit slot 91. A clamping reed 92 is fixed on the tripping connecting piece 9, the clamping reed 92 is embedded into the clamping groove 51, and the clamping reed 92 abuts against the side wall of the clamping groove 51, so that the installation and fixation between the tripping connecting piece 9 and the tripping ejector rod 5 are realized.

With continued reference to fig. 1 and 2, a trip spring 10 is installed between the trip link 9 and the receiving boss 7, a mounting platform 93 is integrally formed on the trip link 9, one end of the trip spring 10 abuts against a sidewall of the mounting platform 93, and the other end of the trip spring 10 abuts against a sidewall of the receiving boss 7. In order to improve the stability of the trip spring 10 on the receiving boss 7, a limiting groove 72 is formed on the receiving boss 7, and one end of the trip spring 10 close to the receiving boss 7 is embedded into the limiting groove 72. In some other embodiments, a limiting column or a limiting platform can be mounted on the receiving boss 7 to limit the tripping spring 10.

When the electromagnetic release is not released, the electromagnetic coil 3 is in a power-off state, the movable iron core 4 is attracted to the magnetic attraction piece 81 by the attraction force of the magnetic attraction piece 81, the release spring 10 is in a compressed state, and the magnetic attraction force borne by the movable iron core 4 is greater than the elastic force exerted by the release spring 10.

When the trip spring 10 is in a compressed state, the trip connecting piece 9 moves in a direction close to the receiving convex seat 7, the avoiding groove 73 is formed in the trip connecting piece 9, and the receiving convex seat 7 is located in the avoiding groove 73, so that the stability of the trip connecting piece 9 is improved.

When the electromagnetic release is released, the electromagnetic coil 3 is electrified, the movable iron core 4 is subjected to the electric field force after the electromagnetic coil 3 is electrified, the direction of the electric field force is the same as the direction of the elastic force applied by the release spring 10, the magnetic attraction force applied to the movable iron core 4 is smaller than the sum of the magnetic field force and the elastic force, and the movable iron core 4 displaces along the direction far away from the magnetic attraction piece 81 to realize the releasing operation of the electromagnetic release. After the electromagnetic release tripping operation is completed, if the electromagnetic release is to be reset, the reset connecting rod 6 is only needed to be manually pulled or the reset connecting rod 6 is pulled through an external mechanical operating mechanism, the reset connecting rod 6 drives the movable iron core 4 to move along the direction close to the magnetic attraction piece 81 after moving until the magnetic attraction piece 81 is attracted, and the resetting convenience of the electromagnetic release is greatly improved.

The implementation principle of the embodiment of the application is as follows: reset the connecting rod through threaded connection in the one end of moving iron core 4, the connecting rod that resets is kept away from the one end that moves iron core 4 and is worn out base 1, after electromagnetic release is in the dropout state, through pulling connecting rod 6 that resets, make to move iron core 4 and inhale the direction removal of piece 81 along being close to magnetism, move iron core 4 and inhale the completion that resets on the piece 81 of magnetism, and the cooperation of establishing is inlayed to the boss 7 of accepting of installation on dropout connecting piece 9 after resetting and the base 1, the compact structure type of electromagnetic release and the convenience that resets have been improved.

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: equivalent changes in 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 an electromagnetic release, is in including base (1), setting coil skeleton (2) in base (1) is around establishing solenoid (3) on coil skeleton (2), move iron core (4) and connect move release ejector pin (5) on iron core (4), it slides and sets up to move iron core (4) in coil skeleton (2), its characterized in that:

move iron core (4) and keep away from the one end of dropout ejector pin (5) is connected with the connecting rod that resets, the one end of connecting rod (6) that resets with move iron core (4) can dismantle fixed connection, reset connecting rod (6) are kept away from the one end of moving iron core (4) is worn to establish base (1).

2. An electromagnetic release according to claim 1, wherein: one end of the reset connecting rod (6) is provided with a threaded rod (61), and the threaded rod (61) is in threaded connection with the movable iron core (4).

3. An electromagnetic release according to claim 1, wherein: the utility model discloses a trip device, including dropout ejector pin (5), tripping connecting piece (9) are provided with to the tip of dropout ejector pin (5), be provided with joint reed (92) on tripping connecting piece (9), be provided with joint groove (51) on dropout ejector pin (5), joint reed (92) joint is in joint groove (51).

4. An electromagnetic release according to claim 3, wherein: the coil frame is characterized in that a bearing convex base (7) is arranged on the base (1), a first sliding cavity (71) is arranged in the bearing convex base (7), a second sliding cavity (21) is arranged in the coil frame (2), the first sliding cavity (71) is communicated with the second sliding cavity (21), and the movable iron core (4) is located in the first sliding cavity (71) and the second sliding cavity (21).

5. An electromagnetic release according to claim 1, wherein: the magnetic attraction type magnetic iron core is characterized in that a magnetic attraction piece (81) is arranged in the base (1), a buffering magnetic conduction piece (82) is arranged on the magnetic attraction piece (81), and the movable iron core (4) is adsorbed on the buffering magnetic conduction piece (82).

6. An electromagnetic release according to claim 4, wherein: an avoiding groove (73) is formed in the tripping connecting piece (9), and the bearing convex seat (7) is located in the avoiding groove (73).

7. An electromagnetic release according to claim 4, wherein: the trip connecting piece (9) is provided with a trip spring (10) between the bearing convex base (7), the trip connecting piece (9) is provided with a mounting table (93), one end of the trip spring (10) is abutted on the side wall of the mounting table (93), and the other end of the trip spring (10) is abutted on the side wall of the bearing convex base (7).

8. An electromagnetic release according to claim 7, wherein: a limiting groove (72) is formed in the bearing convex seat (7), and one end, close to the bearing convex seat (7), of the tripping spring (10) is embedded into the limiting groove (72).