CN216562959U

CN216562959U - Moulded case circuit breaker armature and stamping die

Info

Publication number: CN216562959U
Application number: CN202220093973.4U
Authority: CN
Inventors: 马伟; 郑国根
Original assignee: Yueqing Haoyi Electric Appliance Co ltd
Current assignee: Yueqing Haoyi Electric Appliance Co ltd
Priority date: 2022-01-14
Filing date: 2022-01-14
Publication date: 2022-05-17
Anticipated expiration: 2032-01-14

Abstract

The utility model discloses a magnetic latching relay armature iron with a firmer structure after assembly and a stamping die. The technical scheme includes that the armature body is integrally formed by a stamping die in a stamping mode, a first fixing pin and a second fixing pin are arranged at the lower end of the armature body, a first elastic contact arm and a second elastic contact arm are arranged at the upper end of the armature body, at least one first bending portion is arranged on the first elastic contact arm, and at least one second bending portion is arranged on the second elastic contact arm. The advantages are that: after the fixing pin is riveted with the plastic shell, the elastic force of the elastic contact arm and the bending part can be further utilized to be fixed with the plastic outer part, so that the armature can be better kept on the plastic outer part, and the armature is prevented from falling off; in addition, the stamping die can be used for integrally stamping and forming the steel plate, so that the production efficiency is higher.

Description

Moulded case circuit breaker armature and stamping die

Technical Field

The utility model relates to a molded case circuit breaker armature and a stamping die.

Background

The magnetic latching relay is a novel relay developed in recent years and is also an automatic switch. As with other electromagnetic relays, it acts to automatically turn on and off the circuit. The armature of a magnetically held relay is typically fixed within a plastic housing and cooperates with a permanent magnet. When the contact switching mechanism works, the coil is electrified and then acts on the armature, and the push rod drives the connecting piece to move through the rotation of the armature, so that the opening and closing actions of the contact are realized. In order to ensure the connection strength between the armature and the plastic shell, the armature is usually formed by injection molding with the plastic shell insert, which causes the defects of troublesome processing and high cost of the armature.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide the moulded case circuit breaker armature and the stamping die which are more firm in structure after assembly.

In order to solve the problems, the technical scheme adopted by the utility model comprises an armature iron body integrally formed by punching and forming by a punching die, and is characterized in that: the lower extreme of armature body is equipped with first fixed foot, the fixed foot of second, the upper end of armature body is equipped with first elastic contact arm, second elastic contact arm, first elastic contact arm is last to be equipped with the first portion of bending of a department at least, second elastic contact arm is last to be equipped with the second portion of bending of a department at least.

The moulded case circuit breaker armature, its characterized in that: and the second elastic contact arm is integrally punched and formed with a wiring hole.

The moulded case circuit breaker armature, its characterized in that: the rotating shaft is formed at the lower ends of the first elastic contact arm and the second elastic contact arm in an integrated punching mode.

The moulded case circuit breaker armature, its characterized in that: the lower ends of the first elastic contact arm and the second elastic contact arm correspond to the lower end of the rotating shaft, and a fixed salient point is integrally formed under the rotating shaft in a punching mode.

The moulded case circuit breaker armature, its characterized in that: the armature body is H-shaped.

A stamping die for stamping the keeper relay armature of any one of the above items, includes cope match-plate pattern, lower bolster, its characterized in that: be equipped with in proper order between cope match-plate pattern, the lower bolster and be used for the punching press first punching press core subassembly of first elastic contact arm and be used for the punching press second punching press core subassembly of second elastic contact arm, first punching press core subassembly includes core, the first core of bending down that sets up relatively from top to bottom and core, the second core of bending down that bends of core and the relative second that sets up from top to bottom, be formed with first bending type groove between core, the first core of bending down of bending in the first bending, the second is bent and is formed with the second bending type groove between the core down.

The stamping die is characterized in that: and one side of the second bent upper core is provided with a yielding groove.

The stamping die is characterized in that: the second punching core assembly comprises a third bending upper core and a third bending lower core which are oppositely arranged up and down, and a third bending groove is formed between the third bending upper core and the third bending lower core.

The keeper relay armature of the utility model has the advantages that: after the fixing pin is riveted with the plastic shell, the elastic force of the elastic contact arm and the bending part can be further utilized to be fixed with the plastic outer part, so that the armature can be better kept on the plastic outer part, and the armature is prevented from falling off; in addition, the stamping die can be used for integrally stamping and forming the steel plate, so that the production efficiency is higher.

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Drawings

Fig. 1 is a schematic structural view of a molded case circuit breaker armature of the present invention;

FIG. 2 is a schematic structural view of the stamping die of the present invention, showing a first bending station;

FIG. 3 is a schematic structural view of the stamping die of the present invention, showing a second bending station;

FIG. 4 is a schematic structural view of the stamping die of the present invention showing a third bending station;

FIG. 5 is a schematic view of the structure between a first bent upper core and a first bent lower core according to the present invention;

FIG. 6 is a schematic view of a second folded upper core and a second folded lower core of the present invention;

FIG. 7 is a schematic view of the structure between a third bent upper core and a third bent lower core according to the present invention.

Detailed Description

Example 1:

as shown in fig. 1, the armature of the molded case circuit breaker of the present invention includes an armature body 1 integrally formed by a stamping die, and is in an "H" shape. The lower extreme of armature body 1 is equipped with first fixed foot 2 and the fixed foot 3 of second, the upper end of armature body 1 is equipped with first elastic contact arm 4 and second elastic contact arm 5.

The first elastic contact arm 4 is provided with a first bending part 6, and the second elastic contact arm 5 is provided with a second bending part 7. The armature iron body 1 is oppositely arranged on two sides of the plastic shell and is riveted and fixed through the first fixing pin 2 and the second fixing pin 3.

Preferably, the second elastic contact arm 5 is integrally punched and formed with a wiring hole 8 so as to be connected with a wire conveniently. First elasticity touches arm 4, the integrative stamping forming of second elasticity lower extreme that arm 5 has pivot 10, through integrated into one piece's pivot 10 design, and the assembly is simpler, and stable in structure. First elasticity touches the lower extreme of arm 4, second elasticity touch arm 5, and corresponds pivot 10 below integrative stamping forming has fixed bump 11, through fixed bump 11 makes armature body 1 riveting back, can be better keep on plastic casing.

Example 2:

as shown in fig. 2 to 7, a stamping die of the present invention for stamping the armature of the molded case circuit breaker described in embodiment 1 includes an upper mold plate 12 and a lower mold plate 13. A first stamping core assembly 14 for stamping the first elastic contact arm 4 and a second stamping core assembly 15 for stamping the second elastic contact arm 5 are sequentially arranged between the upper template 12 and the lower template 13, wherein the first stamping core assembly 14 comprises a first bent upper core 16, a first bent lower core 17, a second bent upper core 18 and a second bent lower core 19 which are oppositely arranged up and down. The first bending upper core 16 is fixed on the upper template 12, the first bending lower core 17 is fixed on the lower template 13, after the upper template 12 and the first bending lower core 17 are assembled, a first bending groove 20 is formed between the first bending upper core 16 and the first bending lower core 17, and the first bending groove 20 is used for stamping 90-degree bending of the front end of the first bending part 6 on the first elastic contact arm 4. The second bending upper core 18 is fixed on the upper template 12, and the second bending lower core 19 is fixed on the lower template 13. After the upper template 12 and the first bending lower core 17 are assembled, a second bending groove 21 is formed between the second bending upper core 18 and the second bending lower core 19, and the second bending groove 21 is used for stamping the bending of the rear end of the first bending part 6 of the first elastic contact arm 4, so as to finally form the first bending part 6. And one side of the second bending upper core 18 is provided with a relief groove 22. When the rear end of the first bending part 6 of the first elastic contact arm 4 is bent by stamping, the bending device is used for yielding the 90-degree bend at the front end of the first bending part 6 on the first elastic contact arm 4 after the stamping is finished.

The second punching core assembly 15 includes a third bending upper core 23 and a third bending lower core 24 which are arranged opposite to each other. The third bending upper core 23 is fixed on the upper template 12, and the third bending lower core 24 is fixed on the lower template 13. After the upper die plate 12 and the first bent lower core 17 are assembled, a third bending groove 25 is formed between the third bent upper core 23 and the third bent lower core 24 and used for stamping a second bending part 7 of the second elastic contact arm 5.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are included in the scope of the present invention.

Claims

1. The utility model provides a moulded case circuit breaker armature, includes armature body (1) with the integrative stamping forming of stamping die, its characterized in that: the lower extreme of armature body (1) is equipped with first fixed foot (2), the fixed foot of second (3), the upper end of armature body (1) is equipped with first elasticity and touches arm (4), second elasticity and touches arm (5), be equipped with a first portion of bending (6) on first elasticity touches arm (4) at least, second elasticity touches arm (5) and is last to be equipped with a second portion of bending (7) at least.

2. The molded case circuit breaker armature of claim 1, wherein: and the second elastic contact arm (5) is integrally punched and formed with a wiring hole (8).

3. The molded case circuit breaker armature of claim 1, wherein: the lower ends of the first elastic contact arm (4) and the second elastic contact arm (5) are integrally formed with a rotating shaft (10) in a punching mode.

4. A molded case circuit breaker armature according to claim 3, wherein: the lower ends of the first elastic contact arm (4) and the second elastic contact arm (5) correspond to the fixed salient points (11) formed on the lower portion of the rotating shaft (10) in an integrated punching mode.

5. The molded case circuit breaker armature of claim 1, wherein: the armature iron body (1) is H-shaped.

6. A stamping die for stamping the armature of the molded case circuit breaker according to any one of claims 1 to 5, comprising an upper template (12) and a lower template (13), characterized in that: be equipped with in proper order between cope match-plate pattern (12), lower bolster (13) and be used for the punching press first punching press core subassembly (14) of first elastic contact arm (4) and be used for the punching press second punching press core subassembly (15) of second elastic contact arm (5), first punching press core subassembly (14) are bent core (18), second bend core (19) down including the relative first core (16) of going up that bends, first bend core (17) down and the relative second that sets up from top to bottom, be formed with first bending type groove (20) between core (17) down in first bending core (16), the first bending, be formed with second bending type groove (21) between core (19) down in the second bending core (18) of going up, the second is bent.

7. The stamping die of claim 6, wherein: and one side of the second bending upper core (18) is provided with a abdicating groove (22).

8. The stamping die of claim 6, wherein: the second punching core assembly (15) comprises a third bending upper core (23) and a third bending lower core (24) which are oppositely arranged up and down, and a third bending groove (25) is formed between the third bending upper core (23) and the third bending lower core (24).