CN214588681U

CN214588681U - Direct current driver of high-speed circuit breaker

Info

Publication number: CN214588681U
Application number: CN202120678295.3U
Authority: CN
Inventors: 王晓莉; 倪廷海
Original assignee: Anhui Qili Electric Automation Co ltd
Current assignee: Anhui Qili Electric Automation Co ltd
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2021-11-02
Anticipated expiration: 2031-04-02

Abstract

The utility model relates to the technical field of circuit breakers, and discloses a direct current driver of a high-speed circuit breaker, which comprises an outer frame, wherein a first iron core is fixedly arranged in the middle of the bottom end of the inner wall of the outer frame, a first winding is wound outside the first iron core, an inner groove is arranged at the top end of the first iron core, a first spring is fixedly arranged inside the inner groove, an inner frame is movably connected above the inner part of the outer frame, the direct current driver of the high-speed circuit breaker realizes the replacement of a permanent magnet by using the electromagnetic induction principle through the winding of a direct current wire arranged inside, thus the magnetic attenuation of the inner permanent magnet after long-time use can not occur, the use reliability of the device is greatly increased, and the upper part and the lower part can respectively control the opening and closing speed between the upper switch and the lower switch by simultaneously and accurately controlling the current in the upper coil and the lower coil and changing in real time by using the electromagnetic induction principle, the controllability of the circuit breaker is greatly improved.

Description

Direct current driver of high-speed circuit breaker

Technical Field

The utility model relates to a circuit breaker technical field specifically is a high-speed circuit breaker's direct current drive ware.

Background

The circuit breaker is a switching device which can open and close, bear and break the current under the condition of a normal loop and can close and close, and bear and break the current under the condition of an abnormal loop within a specified time, most of driving devices in the existing circuit breaker are permanent magnets, although the permanent magnets do not use direct current to generate magnetic force, the permanent magnets can continuously attenuate the magnetism along with the increase of the service time, the opening and closing of the inside of the circuit breaker and the maintenance state of the circuit breaker all need the participation of the permanent magnets, the performance of the circuit breaker can be directly influenced once the magnetic attenuation of the permanent magnets in the existing circuit breaker is serious, the control precision of opening and closing the circuit breaker through the permanent magnets is not high, only the opening or closing can be realized, the accurate time delay opening or closing can not be realized according to the actual requirement, the practicability of the circuit breaker is greatly reduced, and meanwhile, the circuit breaker is likely to close due to the magnetic attenuation of the permanent magnets and the vibration of external equipment The closed state is disconnected, so that the circuit breaker is directly failed, and the normal use of the equipment is seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a direct current drive ware of high-speed circuit breaker, possess stable performance, the nature controlled high, advantage that the practicality is strong, solved the problem that proposes among the above-mentioned background art.

The utility model provides a following technical scheme: a direct current driver of a high-speed circuit breaker comprises an outer frame, wherein a first iron core is fixedly mounted in the middle of the bottom end of the inner wall of the outer frame, a first winding is wound outside the first iron core, an inner groove is formed in the top end of the first iron core, a first spring is fixedly mounted inside the inner groove, an inner frame is movably connected to the upper portion inside the outer frame, clamping grooves are formed in two ends of the outer side surface of the inner frame respectively, a second iron core is fixedly mounted in the center inside the inner frame, a second winding is wound outside the second iron core, a supporting rod is fixedly mounted at the bottom end of the second iron core inside the inner frame, a slotted hole is formed in the bottom end of the inner frame, a cross rod is fixedly mounted on the upper side face outside the inner frame, a first friction block is fixedly mounted below the end portion of the cross rod, and a clamping structure is movably mounted in the upper portion of the side face of the outer frame;

the screens structure contains the card post that runs through frame swing joint, the top fixed mounting that the card post is located the inside one end of frame has the second clutch blocks, the card post is located the outside one end fixed mounting of frame has the end links, the card post has the dop with the tip fixed mounting of end links homonymy, the one end that leans on the outside of end links is located the outside fixed cup joint of card post and installs the second spring, the outside fixed mounting of card post has spacing.

Preferably, a circular groove is formed in the bottom end of the second iron core, and the top end of the first spring is fixedly installed in the circular groove in the bottom end of the second iron core.

Preferably, the cross-sectional shape of the clamping groove is an isosceles trapezoid, and the first friction block is in contact with the second friction block when the clamping structure is embedded into the clamping groove.

Preferably, the length of the end part of the clamping head embedded into the clamping groove does not exceed the height of the clamping head, and the second spring is in a compressed state all the time.

Preferably, the lower surface of the first friction block and the upper surface of the second friction block are rough.

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. this high speed circuit breaker's direct current driver, direct current wire winding through inside setting utilizes the electromagnetic induction principle to realize replacing the permanent magnet, just so can not take place inside permanent magnet and take place in the condition of long-time back magnetic attenuation of using, greatly increased the use reliability of equipment, two parts all are the principle that uses electromagnetic induction can be through the current size in two sets of coils about the accurate control simultaneously and change the speed that opens and shuts between two switches about controlling respectively in real time, improve the controllability of circuit breaker greatly.

2. This high speed circuit breaker's direct current drive ware, be provided with first spring through between the top at first iron core and the bottom of second iron core, can increase the off-speed of first iron core and second iron core like this, avoid resulting in the disconnection to postpone owing to produce magnetic repulsion with electromagnetic induction, guarantee the normal use of circuit breaker, combine the top of the inside both sides of frame to install the screens structure respectively simultaneously, combine the draw-in groove of seting up on the inside casing, can utilize the embedding of screens structure to reach the position of inside casing and prescribe a limit to when first iron core and second iron core are closed, first clutch blocks and second clutch blocks friction relay size and the magnetic attraction size between first iron core and the second iron core are directly proportional simultaneously, can guarantee the inside closure of circuit breaker more reliable and more stable like this.

Drawings

FIG. 1 is a schematic front sectional view of the present invention;

FIG. 2 is a schematic perspective view of the position-locking structure of the present invention;

fig. 3 is a schematic view of the bottom-cut three-dimensional structure of the present invention.

In the figure: 1. an outer frame; 2. a first iron core; 3. a first winding; 4. an inner tank; 5. a first spring; 6. an inner frame; 7. a card slot; 8. a second iron core; 9. a second winding; 10. a support bar; 11. a slot; 12. a cross bar; 13. a first friction block; 14. a clamping structure; 141. clamping the column; 142. a second friction block; 143. an end ring; 144. clamping a head; 145. a second spring; 146. and (5) a limiting strip.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a direct current driver of a high-speed circuit breaker includes an outer frame 1, a first iron core 2 is fixedly installed in the middle of the bottom end of the inner wall of the outer frame 1, a first winding 3 is wound outside the first iron core 2, an inner groove 4 is formed in the top end of the first iron core 2, a first spring 5 is fixedly installed inside the inner groove 4, an inner frame 6 is movably connected to the upper portion inside the outer frame 1, clamping grooves 7 are respectively formed in two ends of the outer side surface of the inner frame 6, a second iron core 8 is fixedly installed in the center inside the inner frame 6, a second winding 9 is wound outside the second iron core 8, a support rod 10 is fixedly installed inside the inner frame 6 at the bottom end of the inner frame 6, a slotted hole 11 is formed in the bottom end of the inner frame 6, a cross bar 12 is fixedly installed on the upper side surface outside the inner frame 6, a first friction block 13 is fixedly installed below the end of the cross bar 12, and a clamping structure 14 is movably installed in the upper portion of the side surface of the outer frame 1;

the screens structure 14 contains the card post 141 that runs through frame 1 swing joint, and card post 141 is located the top fixed mounting of the inside one end of frame 1 has second clutch blocks 142, and card post 141 is located the outside one end fixed mounting of frame 1 and has an end ring 143, and the tip fixed mounting of card post 141 and end ring 143 homonymy has dop 144, and the outside fixed socket that is located card post 141 in the one end that leans on the outside of end ring 143 is installed second spring 145, and the outside fixed mounting of card post 141 has spacing strip 146.

Wherein, the circular slot has been seted up to the bottom of second iron core 8, and the top fixed mounting of first spring 5 is in the circular slot of second iron core 8 bottom, so not only can utilize the elasticity of first spring 5 to realize the quick disconnection when external circuit is unusual, improves the response speed of circuit breaker, also can be when the circuit breaker is closed enough space with first spring 5 collection compression, guarantees the normal closure of circuit breaker.

The cross section of the clamping groove 7 is isosceles trapezoid, the first friction block 13 is in contact with the second friction block 142 when the clamping structure 14 is embedded into the clamping groove 7, so that the clamping structure 14 can be clamped into the clamping groove 7 to fix the whole position of the inner frame 6, and the clamping structure 14 is guaranteed not to move by contact friction of the first friction block 13 and the second friction block 142, so that the inner frame 6 is indirectly guaranteed not to move, and reliability of the circuit breaker is greatly improved.

The length of the end part of the clamping head 144 embedded into the clamping groove 7 is not more than the height of the clamping head 144, and the second spring 145 is in a compressed state all the time, so that the clamping head 144 can be ensured to be smoothly inserted into the clamping groove 7 to limit and fix the position of the inner frame 6, and meanwhile, the clamping head 144 in the clamping groove 7 can be smoothly extruded when the inner frame 6 needs short-circuit operation, the smoothness of the whole response structure of the circuit breaker is ensured, and the practicability of the device is embodied.

Wherein, the lower surface of first clutch blocks 13 and the upper surface of second clutch blocks 142 are all crude, and frictional force between the two can change along with the degree size that moves down of inside casing 6 thereupon to guaranteed that screens structure 14 is spacing fixed to the position of inside casing 6, and then guaranteed this circuit breaker's stability in use.

The working principle is as follows: when the device is used, when an abnormal condition occurs in an external circuit, the current direction in the first winding 3 is unchanged, and the current direction in the second winding 9 is reversed, so that at an instant, in combination with the elastic action of the first spring 5 arranged between the first iron core 2 and the second iron core 8, the connection between the first iron core 2 and the second iron core 8 is disconnected under the action of magnetic field repulsive force generated by two induction coils and the elastic force of the first spring 5 at the instant, the second iron core 8 drives the inner frame 6 to move upwards, meanwhile, the clamping head 144 is extruded out of the clamping groove 7, the first friction block 13 is separated from the second friction block 142, the end ring 143 compresses the second spring 145 in the moving process of the clamping column 141, then after external abnormal treatment is completed, the current in the original direction is introduced into the second winding 9 again, the current is enough to overcome the elastic force of the first spring 5 to compress the upper and lower parts to be contacted again, then, the first friction blocks 13 are brought into contact with the second friction blocks 142 again, and as the inner frame 6 moves downward as a whole, the friction force between the first friction blocks 13 and the second friction blocks 142 increases, thereby ensuring the fixation of the position of the inner frame 6 at the time of incorporation.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Also in the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the equipment or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. In addition, in the drawings of the present invention, the filling pattern is only for distinguishing the pattern layer, and is not limited to any other pattern.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A direct current driver of a high speed circuit breaker, comprising an outer frame (1), characterized in that: the bottom end of the inner wall of the outer frame (1) is fixedly provided with a first iron core (2), the outer part of the first iron core (2) is wound with a first winding (3), the top end of the first iron core (2) is provided with an inner groove (4), the inner part of the inner groove (4) is fixedly provided with a first spring (5), the upper part of the inner part of the outer frame (1) is movably connected with an inner frame (6), the two ends of the outer side surface of the inner frame (6) are respectively provided with a clamping groove (7), the center of the inner part of the inner frame (6) is fixedly provided with a second iron core (8), the outer part of the second iron core (8) is wound with a second winding (9), the bottom end of the second iron core (8) is positioned in the inner frame (6) and is fixedly provided with a supporting rod (10), the bottom end of the inner frame (6) is provided with a slotted hole (11), the upper side surface of the outer part of the inner frame (6) is fixedly provided with a cross rod (12), a first friction block (13) is fixedly arranged below the end part of the cross rod (12), and a clamping structure (14) is movably arranged above the side surface of the outer frame (1);

screens structure (14) contain card post (141) that runs through frame (1) swing joint, card post (141) are located the top fixed mounting of the inside one end of frame (1) and have second clutch blocks (142), card post (141) are located the outside one end fixed mounting of frame (1) and have end ring (143), card post (141) have dop (144) with the tip fixed mounting of end ring (143) homonymy, the outside fixed socket that the one end that leans on the outside of end ring (143) is located card post (141) installs second spring (145), the outside fixed mounting of card post (141) has spacing (146).

2. The direct current driver of a high speed circuit breaker according to claim 1, wherein: the circular groove is formed in the bottom end of the second iron core (8), and the top end of the first spring (5) is fixedly installed in the circular groove in the bottom end of the second iron core (8).

3. The direct current driver of a high speed circuit breaker according to claim 1, wherein: the cross section of the clamping groove (7) is in an isosceles trapezoid shape, and the clamping structure (14) is in contact with the first friction block (13) and the second friction block (142) when being embedded into the clamping groove (7).

4. The direct current driver of a high speed circuit breaker according to claim 1, wherein: the length of the end part of the clamping head (144) embedded into the clamping groove (7) does not exceed the height of the clamping head (144), and the second spring (145) is in a compressed state all the time.

5. The direct current driver of a high speed circuit breaker according to claim 1, wherein: the lower surface of the first friction block (13) and the upper surface of the second friction block (142) are rough.