CN213691897U

CN213691897U - Welding fixture device of magnetic tripping assembly of circuit breaker

Info

Publication number: CN213691897U
Application number: CN202022241600.0U
Authority: CN
Inventors: 于海利; 李文才
Original assignee: Anhui Jiahui Electric Co ltd
Current assignee: Anhui Jiahui Electric Co ltd
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2021-07-13
Anticipated expiration: 2030-10-10

Abstract

The utility model discloses a welding jig device of circuit breaker magnetic tripping assembly, including base and sliding block, the base upper surface be equipped with arc wall and circular slot, the circular slot be located the arc wall right side to communicate with the arc wall, the base on the right side of circular slot on form the welding groove, the base on welding groove right side on be equipped with the step, the step be equipped with the fixed slot that corresponds with the welding groove on the surface, the sliding block be square structure, movable mounting is in the upper surface of base, the left side terminal surface of sliding block on be equipped with the annular, the middle part of annular form the joint post, the lower extreme opening of annular, and the annular corresponds the setting with the arc wall, the annular can form a spring groove with the arc wall cooperation, the utility model overcomes the deficiencies of prior art, the device assembly and dismantlement are convenient, and can be accurate, The spring coil, the fixed contact and the wiring board are conveniently fixed, and the working efficiency is improved.

Description

Welding fixture device of magnetic tripping assembly of circuit breaker

Technical Field

The utility model relates to a circuit breaker technical field specifically belongs to welding jig device of circuit breaker magnetic tripping assembly.

Background

The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition within a prescribed time. The circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to the application range, the high-voltage and low-voltage boundary lines are relatively vague, and the circuit breakers above 3kV are generally called high-voltage electric appliances. The circuit breaker can be used for distributing electric energy, starting an asynchronous motor infrequently, protecting a power supply circuit, the motor and the like, and automatically cutting off a circuit when faults such as serious overload, short circuit, undervoltage and the like occur, and the function of the circuit breaker is equivalent to the combination of a fuse type switch, an over-under-heat relay and the like. Furthermore, no parts need to be changed after breaking the fault current. At present, it has been widely used.

A circuit breaker generally includes a contact system, an arc extinguishing system, an operating mechanism, a trip unit, a case, and the like. When short circuit occurs, a magnetic field generated by large current (generally 10 to 12 times) overcomes a counterforce spring, a release pulls an operating mechanism to act, and a switch is tripped instantaneously. When the overload occurs, the current becomes large, the heating value becomes large, and the bimetallic strip deforms to a certain degree to push the mechanism to act (the larger the current is, the shorter the acting time is).

The core component in the circuit breaker comprises a magnetic trip component which is composed of a wiring board, a spring coil and a static contact, the wiring board and the static contact are required to be welded on wiring ends at two ends of the spring coil in the production process, but the wiring board, the spring coil and the static contact are difficult to effectively fix in the welding process due to the special structure of the magnetic trip component after welding is completed, so that the yield of the magnetic trip component after welding is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a circuit breaker magnetic tripping assembly's welding jig device has overcome the not enough of prior art.

In order to solve the above problems, the utility model adopts the following technical proposal:

welding jig device of circuit breaker magnetic tripping assembly, including base and sliding block, the base upper surface be equipped with arc wall and circular slot, the circular slot be located the arc wall right side to communicate with the arc wall, the base upper surface on the right side of circular slot on form the welding groove, the base on welding groove right side on be equipped with the step, the step be equipped with the fixed slot that corresponds with the welding groove on the surface, the sliding block be square structure, movable mounting in the upper surface of base, the left side terminal surface of sliding block on be equipped with the annular, the middle part of annular form the joint post, the lower extreme opening of annular, and the annular corresponds the setting with the arc wall, the annular can form a spring groove with the arc wall cooperation.

Further, the base left surface on still be equipped with the boss of symmetry, the top of boss be equipped with the stopper, the sliding block on be equipped with stopper complex constant head tank, the stopper can insert in the constant head tank.

Further, the bottom of the right end face of the sliding block is also provided with a connecting block, and the connecting block and the limiting block are both strong magnets.

Further, the base left side surface on still be equipped with the slot, the slot be located the arc wall under, and with the fixed slot coaxial.

Compared with the prior art, the utility model discloses an implement the effect as follows: the device is arranged by matching the base and the sliding block, so that the sliding block can be positioned and installed on the upper surface of the base, a spring clamping groove is formed between the sliding block and the base, a spring coil can be firmly fixed in the device and cannot rotate, the fixed contact and the wiring board can be installed in the slot and the fixing groove respectively, a worker can quickly weld the spring coil, the fixed contact and the wiring board, and after the welding is finished, the sliding block is removed by sliding, so that the welded magnetic tripping component can be taken out for the next welding operation; the device is convenient to assemble and disassemble, and can fix the spring coil, the fixed contact and the wiring board accurately and conveniently, so that the working efficiency is improved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a top view of the base.

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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation to be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically coupled, may be directly coupled, or may be indirectly coupled through an intermediary. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-3, the welding fixture device of the magnetic trip assembly of the circuit breaker comprises a base 1 and a sliding block 2, wherein an arc-shaped groove 12 and a circular groove 13 are arranged on the upper surface of the base 1, the circular groove 13 is positioned on the right side of the arc-shaped groove 12 and communicated with the arc-shaped groove 12, a welding groove 31 is formed on the upper surface of the base 1 on the right side of the circular groove 13, a step is arranged on the base 1 on the right side of the welding groove 31, a fixing groove 32 corresponding to the welding groove 31 is arranged on the surface of the step, and a wiring board can be placed into a space 3 formed by the welding groove 31 and the fixing groove 32.

Sliding block 2 is square structure, movable mounting is in the upper surface of base 1, be equipped with annular 20 on sliding block 2's the left side terminal surface, the middle part of annular 20 forms joint post 5, the lower extreme opening of annular 20, and annular 20 corresponds the setting with arc wall 12, annular 20 can form a spring groove with the 12 cooperations of arc wall, make spring coil can cup joint on joint post 5, and one of them wiring end of spring coil can pass in circular slot 13 reachs weld groove 31, spring coil's rotation and displacement have been avoided. The bottom of the right end face of the sliding block 2 is also provided with a connecting block 7, and the connecting block 7 is a strong magnet and can adsorb the sliding block 2 on the base 1.

The symmetrical bosses 11 are further arranged on the left side face of the base 1, the slot 4 is further arranged on the surface of the left side of the base 1 between the bosses 11, the slot 4 is located right below the arc-shaped groove 12 and is coaxial with the fixing groove 32, the movable end of the static contact can be inserted into the slot 4 to fix the static contact, the welding of the wiring end on the left side of the spring coil and the static contact is facilitated, the welded static contact and the wiring board can be coaxial, and the magnetic tripping component can be accurately installed in the circuit breaker conveniently. The top of boss 11 is equipped with stopper 6, and stopper 6 is the strong magnet, is equipped with on the sliding block 2 with stopper 6 complex constant head tank, stopper 6 can insert the constant head tank in, realize installation and location to sliding block 2 on base 1.

Compared with the prior art, the utility model discloses an implement the effect as follows: the device is arranged by matching the base 1 and the sliding block 2, so that the sliding block 2 can be positioned and installed on the upper surface of the base 1, a spring clamping groove is formed between the sliding block 2 and the base 1, a spring coil can be firmly fixed in the device and cannot rotate, a static contact and a wiring board can be installed in the slot 4 and the fixing groove 32 respectively, a worker can quickly weld the spring coil, the static contact and the wiring board, and after welding is finished, the sliding block 2 is removed through sliding, so that a magnetic tripping component after welding can be taken out for next welding operation; the device is convenient to assemble and disassemble, and can fix the spring coil, the fixed contact and the wiring board accurately and conveniently, so that the working efficiency is improved.

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. Welding jig device of circuit breaker magnetic tripping assembly, its characterized in that: including base and sliding block, the base upper surface be equipped with arc wall and circular slot, the circular slot be located the arc wall right side to communicate with the arc wall, the base upper surface on the right side of circular slot on form the welding groove, the base on welding groove right side on be equipped with the step, the step be equipped with the fixed slot that corresponds with the welding groove on the surface, the sliding block be square structure, movable mounting is in the upper surface of base, the left side terminal surface of sliding block on be equipped with the annular, the middle part of annular form the joint post, the lower extreme opening of annular, and the annular corresponds the setting with the arc wall, the annular can form a spring groove with the arc wall cooperation.

2. The circuit breaker magnetic trip assembly weld fixture apparatus of claim 1, wherein: the base left surface on still be equipped with the boss of symmetry, the top of boss be equipped with the stopper, the sliding block on be equipped with stopper complex constant head tank, the stopper can insert in the constant head tank.

3. The circuit breaker magnetic trip assembly weld fixture apparatus of claim 2, wherein: the bottom of the right end face of the sliding block is also provided with a connecting block, and the connecting block and the limiting block are strong magnets.

4. The circuit breaker magnetic trip assembly weld fixture apparatus of claim 1, wherein: the base left side surface on still be equipped with the slot, the slot be located the arc wall under, and with the fixed slot coaxial.