CN216749790U

CN216749790U - Electromagnetic system of miniature circuit breaker

Info

Publication number: CN216749790U
Application number: CN202123331269.2U
Authority: CN
Inventors: 全小兰; 夏阳昆; 韩湘玲; 韩暄; 高杰
Original assignee: Legrand Low Voltage Wuxi Co Ltd
Current assignee: Legrand Low Voltage Wuxi Co Ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-06-14
Anticipated expiration: 2031-12-28

Abstract

The utility model discloses an electromagnetic system of a miniature circuit breaker, which comprises a magnetic yoke bottom plate, wherein a magnetic yoke vertical plate is vertically fixed on the upper end surface of the magnetic yoke bottom plate, and an arc-shaped groove is formed in the magnetic yoke vertical plate; further comprising: the iron core, with arc wall interconnect realizes the installation effect, and the iron core setting is on the yoke riser to be provided with the protruding axle on the iron core, the terminal surface is fixed with the spring under the protruding axle simultaneously, the spring other end is fixed on the iron core, and the iron core runs through the coil and realizes the connection effect, and coil one end and wiring board interconnect, the coil other end and contact body interconnect simultaneously. This miniature circuit breaker's electromagnetic system utilizes contact support trench and yoke location, and cooperation stop gear can realize effectively avoiding each part skew of electromagnetic system among the welding process to the limiting displacement of each part of electromagnetic system, conveniently welds, improves electromagnetic system welding dimension location accuracy, reduction in production cost and the technology degree of difficulty, guarantees the product temperature rise performance.

Description

Electromagnetic system of miniature circuit breaker

Technical Field

The utility model relates to the technical field of circuit breakers, in particular to an electromagnetic system of a miniature circuit breaker.

Background

The circuit breaker is a device for protecting electrical equipment, wherein a miniature circuit breaker is one of the small circuit breakers, and is mainly used in low-voltage electrical equipment, an electromagnetic system of the existing miniature circuit breaker is the electromagnetic system of the miniature circuit breaker with the publication number of CN205140906U, and comprises an actuating assembly, a bracket and a coil, wherein the bracket comprises a right supporting plate, a fixed contact, a magnetic yoke and a left supporting plate which are sequentially connected, the actuating assembly is installed on the bracket … …, and a welding end on the coil is welded with the bracket so as to combine the actuating assembly, the bracket and the coil into an undetachable stable component;

in the above-mentioned miniature circuit breaker production process, the equipment is welded to the electromagnetic system of circuit breaker as required, need carry out fixed position welding through anchor clamps when current electromagnetic system welds, and electromagnetic system subassembly structure is less and rigidity is weaker, thereby easily produce the deformation when arriving through anchor clamps are fixed, and then lead to electromagnetic system to damage, then lead to the product percent of pass lower, and whole electromagnetic system is when carrying out the assembly welding, it is inconvenient to carry on spacingly, thereby lead to the part easily to produce the skew among the welding process, and then influence production efficiency scheduling problem, so need improve in order to satisfy actual need to the above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an electromagnetic system of a miniature circuit breaker, which aims to solve the problems that parts of the electromagnetic system are easy to deform and damage due to clamping in the welding process and the welding efficiency is low due to inconvenient assembly and positioning in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: an electromagnetic system of a miniature circuit breaker comprises a magnetic yoke bottom plate, wherein a magnetic yoke vertical plate is vertically fixed on the upper end surface of the magnetic yoke bottom plate, and an arc-shaped groove is formed in the magnetic yoke vertical plate;

further comprising:

the iron core, with arc wall interconnect realizes the installation effect, and the iron core setting is on the yoke riser to be provided with the protruding axle on the iron core, the terminal surface is fixed with the spring under the protruding axle simultaneously, the spring other end is fixed on the iron core, and the iron core runs through the coil and realizes the connection effect, and coil one end and wiring board interconnect, the coil other end and contact body interconnect simultaneously, the contact body sets up at yoke bottom plate up end.

Preferably, the yoke bottom plate is further fixed with a welding lug, the welding lug is in contact with the wiring board for fixation, and when the welding lug is welded with the wiring board, the welding lug is in contact with the wiring board for realizing a welding effect, so that the welding effect of the wiring board is prevented from being influenced by coil blocking in the welding process.

Preferably, the vertical plate of the magnetic yoke is also provided with a sliding groove and a limiting hole;

the sliding groove is formed in the vertical plate of the magnetic yoke, the depth of the sliding groove is 1-2mm, and the sliding groove and the protruding shaft have a sliding effect;

spacing hole is seted up on the yoke riser, and spacing hole and protruding axle block each other realize limiting displacement, constitute stop gear through above-mentioned mechanism, when assembling the iron core, realize the direction to the iron core through the sliding action of spout and protruding axle, avoid the iron core to produce the skew, cooperate the block effect of spacing hole and protruding axle to realize the location to the iron core to guarantee the stability of iron core installation.

Preferably, for iron core nested connection between the arc wall, and arc wall edge is slope structure, when installing the iron core, realizes the support to the iron core through the nested effect of arc wall and iron core, and the arc mechanism at cooperation arc wall edge makes things convenient for the protruding axle atress to remove.

Preferably, still be fixed with the spacing ring on the iron core, and spacing ring and coil right-hand member mutual contact realize limiting displacement, when assembling coil and spacing ring, through the effect of spacing ring, can realize the positioning action to the coil to coil horizontal slip and influence welded normal clear when avoiding welding.

Preferably, protruding axle and iron core realize being sliding connection, and the protruding axle passes through to constitute elastic mechanism between spring and the iron core to the protruding axle is the symmetric distribution about the iron core central line, can make the protruding axle realize one section displacement through the effect of spring, thereby makes things convenient for the iron core to assemble, and assembles the back of accomplishing, can make the protruding axle reset through the effect of spring, thereby guarantees the normal block in protruding axle and spacing hole, and then guarantees the positioning action of iron core.

Preferably, the contact body is further fixed with a bayonet and an elastic piece;

the bayonet is arranged on the side edge of the contact body, and the bayonet and the vertical plate of the magnetic yoke are mutually nested to realize the limiting effect;

the elastic part is fixed contact body, and the terminal surface is contacted mutually under elastic part and the yoke bottom plate and is realized limiting displacement, when assembling contact body, realizes the location to contact body through the nested effect of bayonet socket and yoke riser, and the elastic action of cooperation elastic part can make to have certain effort between contact body and the yoke bottom plate, and then realizes the fixed to contact body, guarantees the stability of contact body equipment, makes things convenient for contact body to weld.

Compared with the prior art, the utility model has the beneficial effects that: this miniature circuit breaker's electromagnetic system utilizes contact support trench and yoke location, and cooperation stop gear can realize effectively avoiding each part skew of electromagnetic system among the welding process to the limiting displacement of each part of electromagnetic system, conveniently welds, improves electromagnetic system welding dimension location accuracy, reduction in production cost and the technology degree of difficulty, guarantees the product temperature rise performance, and its concrete content is as follows:

1. the electromagnetic system of the miniature circuit breaker is provided with the protruding shaft, when the iron core is assembled, the iron core is nested and supported through the arc-shaped groove, the iron core can be guided by matching the sliding action of the protruding shaft and the sliding groove, and the iron core can be positioned by the clamping action of the protruding shaft and the limiting hole, so that the stability of iron core assembly is ensured, and the iron core is prevented from sliding;

2. this miniature circuit breaker's electromagnetic system is provided with the elastic component, when assembling the contact body, through the nested effect realization of bayonet socket and yoke riser to the location of contact body, the effect of cooperation elastic component can provide the effort for contact body and yoke bottom plate, guarantees the stability of contact body equipment to make things convenient for the later stage welding.

Drawings

FIG. 1 is a schematic diagram of the overall closing configuration of the present invention;

FIG. 2 is a schematic perspective view of a bottom plate of the magnetic yoke according to the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention;

FIG. 4 is a schematic perspective view of an iron core according to the present invention;

FIG. 5 is a schematic view of the front cross-sectional structure of the present invention;

FIG. 6 is a schematic diagram of a coil structure according to the present invention;

FIG. 7 is a schematic perspective view of a patch panel of the present invention;

fig. 8 is a perspective view of the contact body of the present invention.

In the figure: 1. a yoke base plate; 101. welding a bump; 2. a magnet yoke vertical plate; 201. a chute; 202. a limiting hole; 3. an arc-shaped slot; 4. an iron core; 401. a limiting ring; 5. a protruding shaft; 6. a spring; 7. a coil; 8. a wiring board; 9. a contact body; 901. a bayonet; 902. an elastic member.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, the present invention provides a technical solution: an electromagnetic system of a small circuit breaker comprises a magnetic yoke bottom plate 1, wherein a magnetic yoke vertical plate 2 is vertically fixed on the upper end surface of the magnetic yoke bottom plate 1, and an arc-shaped groove 3 is formed in the magnetic yoke vertical plate 2;

further comprising:

iron core 4, realize the installation effect with 3 interconnect of arc wall, and iron core 4 sets up on yoke riser 2 to be provided with protruding axle 5 on the iron core 4, the terminal surface is fixed with spring 6 under the protruding axle 5 simultaneously, the spring 6 other end is fixed on iron core 4, and iron core 4 runs through coil 7 and realizes the connection effect, and 7 one end of coil and 8 interconnect of wiring board, the coil 7 other end and contact body 9 interconnect simultaneously, contact body 9 sets up at 1 up end of yoke bottom plate.

A welding lug 101 is also fixed on the magnetic yoke bottom plate 1, and the welding lug 101 and the wiring board 8 are mutually contacted and fixed; the vertical plate 2 of the magnetic yoke is also provided with a sliding groove 201 and a limiting hole 202; the sliding groove 201 is formed in the vertical plate 2 of the magnetic yoke, the depth of the sliding groove 201 is 1-2mm, and a sliding effect is formed between the sliding groove 201 and the convex shaft 5; the limiting hole 202 is formed in the vertical plate 2 of the magnetic yoke, and the limiting hole 202 and the convex shaft 5 are mutually clamped to realize limiting; iron cores 4 are nested and connected among the arc-shaped grooves 3, and the edges of the arc-shaped grooves 3 are of inclined structures; a limiting ring 401 is further fixed on the iron core 4, and the limiting ring 401 is in contact with the right end of the coil 7 to realize a limiting effect; the protruding shaft 5 and the iron core 4 are in sliding connection, the protruding shaft 5 and the iron core 4 form an elastic mechanism through a spring 6, and the protruding shaft 5 is symmetrically distributed about the central line of the iron core 4.

When assembling and welding the electromagnetic system of the miniature circuit breaker, firstly, the wiring board 8 is in contact with the welding lug 101 for welding, then, the coil 7 is sleeved on the iron core 4, at the moment, the right end of the coil 7 is in contact with the limiting ring 401, the limiting effect on the right end of the coil 7 is realized, finally, the iron core 4 is in nested connection with the arc-shaped groove 3, at the moment, the convex shaft 5 is in contact with the edge inclined structure of the arc-shaped groove 3, the stress extrusion spring 6 of the convex shaft 5 is contracted until the convex shaft 5 slides in the sliding groove 201, the guiding effect on the iron core 4 is realized, after the nesting of the iron core 4 and the arc-shaped groove 3 is completed, the convex shaft 5 is restored under the action of the spring 6 at the moment, the convex shaft 5 is clamped with the limiting hole 202, and the installation limiting effect on the iron core 4 is realized.

A bayonet 901 and an elastic piece 902 are also fixed on the contact body 9; the bayonet 901 is arranged on the side edge of the contact body 9, and the bayonet 901 and the vertical plate 2 of the magnetic yoke are mutually nested to realize a limiting effect; the elastic member 902 is fixed to the contact body 9, and the elastic member 902 and the lower end surface of the yoke base plate 1 contact with each other to realize a limiting effect.

After iron core 4 assembles the completion, assemble contact body 9 again, realize the location to contact body 9 through the nested effect between bayonet socket 901 and the yoke riser 2, and terminal surface contact and certain effort under elastic component 902 and the yoke bottom plate 1 this moment, thereby make and have certain effort between contact body 9 and the yoke bottom plate 1, and then realize the positioning action to contact body 9, contact body 9 sets up between coil 7 and yoke bottom plate 1 this moment, through the conflict effect of contact body 9, can realize spacing to the 7 left ends of coil.

The working principle is as follows: as shown in fig. 1-8, when assembling and welding an electromagnetic system of the miniature circuit breaker, firstly, a wiring board 8 is in contact with a welding lug 101 for welding, then a coil 7 is sleeved on an iron core 4 in a penetrating manner, at the moment, the right end of the coil 7 is in contact with a limiting ring 401 to realize the limiting effect on the right end of the coil 7, and finally, the iron core 4 is in nested connection with an arc-shaped groove 3, and the installation limiting effect on the iron core 4 can be realized by matching the sliding effect of a convex shaft 5 and a sliding groove 201 and the clamping effect of the convex shaft 5 and a limiting hole 202; assemble contact body 9 again, realize the location to contact body 9 through the nested effect between bayonet socket 901 and the yoke riser 2, cooperation elastic component 902 provides certain effort for contact body 9, and then realize the positioning action to contact body 9, contact body 9 sets up between coil 7 and yoke bottom plate 1 this moment, conflict effect through contact body 9, can realize the spacing to coil 7 left end, thereby accomplish the equipment of electromagnetic system spare part, at last to relevant part weld can, this electromagnetic system spare part assembles the back stability height, thereby avoid the fixed condition that leads to the part to damage of anchor clamps to take place, this is exactly this miniature circuit breaker's electromagnetic system's theory of operation.

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

Claims

1. An electromagnetic system of a small circuit breaker comprises a magnetic yoke bottom plate (1), wherein a magnetic yoke vertical plate (2) is vertically fixed on the upper end face of the magnetic yoke bottom plate (1), and an arc-shaped groove (3) is formed in the magnetic yoke vertical plate (2);

it is characterized by also comprising:

iron core (4), with arc wall (3) interconnect realizes the installation effect, and iron core (4) set up on yoke riser (2) to be provided with protruding axle (5) on iron core (4), terminal surface is fixed with spring (6) under protruding axle (5) simultaneously, the spring (6) other end is fixed on iron core (4), and iron core (4) run through coil (7) and realize the connection effect to coil (7) one end and wiring board (8) interconnect, coil (7) other end and contact body (9) interconnect simultaneously, contact body (9) set up at yoke bottom plate (1) up end.

2. An electromagnetic system of a small-sized circuit breaker according to claim 1, wherein: and a welding lug (101) is further fixed on the magnetic yoke bottom plate (1), and the welding lug (101) is contacted with the wiring board (8) for fixing.

3. An electromagnetic system of a small-sized circuit breaker according to claim 1, wherein: the vertical plate (2) of the magnetic yoke is also provided with a sliding groove (201) and a limiting hole (202);

the sliding groove (201) is formed in the vertical plate (2) of the magnetic yoke, the depth of the sliding groove (201) is 1-2mm, and a sliding effect is formed between the sliding groove (201) and the convex shaft (5);

and the limiting hole (202) is formed in the vertical plate (2) of the magnetic yoke, and the limiting hole (202) is clamped with the protruding shaft (5) to achieve limiting effect.

4. An electromagnetic system of a small-sized circuit breaker according to claim 1, wherein: iron cores (4) are connected between the arc-shaped grooves (3) in a nested mode, and the edges of the arc-shaped grooves (3) are of an inclined structure.

5. An electromagnetic system of a small-sized circuit breaker according to claim 1, wherein: and the iron core (4) is also fixedly provided with a limiting ring (401), and the limiting ring (401) is in mutual contact with the right end of the coil (7) to realize the limiting effect.

6. An electromagnetic system of a small-sized circuit breaker according to claim 1, wherein: the protruding shaft (5) and the iron core (4) are in sliding connection, the protruding shaft (5) and the iron core (4) form an elastic mechanism through a spring (6), and the protruding shaft (5) is symmetrically distributed around the center line of the iron core (4).

7. An electromagnetic system of a small-sized circuit breaker according to claim 1, wherein: a bayonet (901) and an elastic piece (902) are also fixed on the contact body (9);

the bayonet (901) is arranged on the side edge of the contact body (9), and the bayonet (901) and the vertical plate (2) of the magnetic yoke are mutually nested to realize a limiting effect;

and the elastic piece (902) is fixed on the contact body (9), and the lower end faces of the elastic piece (902) and the magnetic yoke bottom plate (1) are in mutual contact to realize a limiting effect.