CN215008115U - Thermal tripping element of circuit breaker and riveting die - Google Patents
Thermal tripping element of circuit breaker and riveting die Download PDFInfo
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- CN215008115U CN215008115U CN202121558978.1U CN202121558978U CN215008115U CN 215008115 U CN215008115 U CN 215008115U CN 202121558978 U CN202121558978 U CN 202121558978U CN 215008115 U CN215008115 U CN 215008115U
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- riveting
- iron core
- heating element
- connecting plate
- circuit breaker
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Abstract
The utility model discloses a connect inseparabler, the better circuit breaker thermal trip component of electric conductive property and riveting mould. The technical scheme adopted comprises the following steps: connecting plate, heating element, bimetallic strip, iron core, the upper end of connecting plate with heating element's upper end fixed connection, through the riveting fixed between bimetallic strip, heating element, the iron core, the lower extreme of connecting plate is equipped with screw hole, its characterized in that: the iron core is integrally punched and formed with a riveting column, the iron core is riveted with the bimetallic strip and the heating element through the riveting column, and a punching hole is formed in the position, corresponding to the riveting column, of the back face of the iron core.
Description
Technical Field
The utility model relates to a circuit breaker thermal trip component.
Background
The circuit breaker is an important protection device in a low-voltage distribution system, and has the functions of short-circuit protection, overload protection, undervoltage protection and the like for alternating-current power grid lines and electric equipment. The thermal tripping element of the circuit breaker is that the thermal element generates heat when current passes through the tripper, the bimetallic strip is heated and deformed, and when the bimetallic strip is deformed to a certain degree, the traction rod is struck to drive the mechanism to act to cut off a circuit. The traditional circuit breaker has the problems of high copper material consumption of a conductive system, complex processing and assembling process, poor precision and poor conductivity, and is formed by splicing a thermal element, a bimetallic strip and a rear seat through multiple electric welding processing; in addition, a connecting plate is arranged between an external connecting plate and a thermal element of the existing conductive system, so that the defects of complex overall structure, troublesome assembly, low installation and working efficiency, inconvenience for production and processing of enterprises, high cost and the like are caused.
Aiming at the problems, the latest thermal element in the market is assembled by adopting an integrated riveting process, and the structure comprises the following components: the heating element comprises a connecting plate, a heating element, a bimetallic strip and an iron core, wherein the upper end of the connecting plate is fixedly connected with the upper end of the heating element, and the bimetallic strip, the heating element and the iron core are riveted and fixed through rivets. However, the connection tightness between the bimetallic strip, the heating element and the iron core is poor, and the conductivity is not particularly ideal.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a connect inseparabler, the better circuit breaker thermal trip component of electric conductive property and riveting mould.
In order to solve the above problem, the utility model discloses a technical scheme include: connecting plate, heating element, bimetallic strip, iron core, the upper end of connecting plate with heating element's upper end fixed connection, through the riveting fixed between bimetallic strip, heating element, the iron core, the lower extreme of connecting plate is equipped with screw hole, its characterized in that: the iron core is integrally punched and formed with a riveting column, the iron core is riveted with the bimetallic strip and the heating element through the riveting column, and a punching hole is formed in the position, corresponding to the riveting column, of the back face of the iron core.
The utility model provides a riveting mould for the riveting above-mentioned circuit breaker thermal trip component, including relative cope match-plate pattern, the lower bolster that sets up from top to bottom, its characterized in that: the riveting die is characterized in that two punching cores matched with the riveting columns are arranged at the bottom of the upper die plate, one end of the lower die plate is provided with a fixed mounting block, the other end of the lower die plate is provided with a sliding mounting block through a sliding rail, a first positioning column matched with a screw hole of the connecting plate is arranged at the front end of the fixed mounting block, a mounting plate is arranged at the upper end of the sliding mounting block, two second positioning columns matched with the punching holes of the iron cores are arranged on the mounting plate, and a propelling mechanism is arranged at the rear end of the sliding mounting block.
The riveting die is characterized in that: the propelling mechanism is a cylinder.
The riveting die is characterized in that: the top of the stamping core is an arc-shaped surface.
The riveting die is characterized in that: and the upper end of the upper template is provided with a mounting flange.
The riveting die is characterized in that: and the upper end of the mounting flange is provided with a central positioning column.
The utility model discloses a beneficial effect of circuit breaker thermal trip component and riveting mould: the riveting is carried out through the integrated riveting column, so that the connection tightness and the electric conductivity of the riveting column can be greatly improved.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a cross-sectional view of a thermal trip element of the circuit breaker of the present invention;
fig. 2 is a cross-sectional view of the iron core of the present invention;
fig. 3 is a schematic structural view of the riveting die of the present invention;
FIG. 4 is a schematic structural view of an upper mold of the present invention;
fig. 5 is a schematic view of the installation of the thermal trip element of the circuit breaker on the riveting die of the present invention;
fig. 6 is a schematic drawing of the riveting die of the present invention.
Detailed Description
Example 1:
as shown in fig. 1 to 4, the thermal trip element of the circuit breaker of the present invention includes a connecting plate 1, a heating element 2, a bimetal 3, and an iron core 4. The upper end of the connecting plate 1 is fixedly connected with the upper end of the heating element 2 in an electric resistance welding mode. The connecting plate 1 is L-shaped, the lower end of the connecting plate is provided with a screw hole 5, and the connecting plate is matched with a screw to be used for connecting a lead. The iron core 4 is integrally punched and formed with the riveting column 6 by a punch, and the specific punching process of the punch is a known technology and is not described herein. After punching, a punching hole 7 is formed on the back of the iron core 4 corresponding to the riveting column 6. The iron core 4 is riveted to the bimetal 3 and the heating element 2 via the rivet post 6.
Example 2:
as shown in fig. 5 to 6, the present invention provides a riveting die for riveting a thermal trip element of a circuit breaker according to embodiment 1. Comprises an upper template 8 and a lower template 9 which are arranged oppositely up and down. And the bottom of the upper template 8 is provided with two stamping cores 10 which are matched with the riveting columns 6. One end of the lower template 9 is provided with a fixed mounting block 11, and the other end of the lower template 9 is provided with a sliding mounting block 13 through a sliding rail 12. The front end of the fixed mounting block 11 is provided with a first positioning column 14 matched with the screw hole 5 of the connecting plate 1. The upper end of the sliding installation block 13 is provided with an installation plate 15, and the installation plate 15 is provided with two second positioning columns 16 which are matched with the punching holes 7 of the iron core 4. The rear end of the sliding installation block 13 is provided with a propelling mechanism 17. During riveting, place mounting panel 15 with the circuit breaker thermal trip component of assembling on, and through mounting panel 15 the second reference column 16 with the cooperation of iron core 4's punching press hole 7 supports and fixes a position, and circuit breaker thermal trip component places the back, moves it to fixed mounting piece 11 department through advancing mechanism 17, makes the upper surface pad of fixed mounting piece 11 in circuit breaker thermal trip component's connecting plate lower surface, and first reference column 14 inserts simultaneously in the screw hole 5 of connecting plate 1, realize holistic location, last mould pushes down, through punching press core 10 is right riveting post 6 punches, realizes the riveting.
The propelling mechanism 17 is ideally provided with an air cylinder to realize automatic propelling, and can also adopt manual propelling according to the requirement.
The top of the stamping core 10 is the arc surface 18, and the edge of the riveting column 6 is extruded outwards through the arc surface 18 during stamping, so that riveting firmness is improved.
Advantageously, the upper end of the upper die plate 8 is provided with a mounting flange 19. The mounting flange 19 is provided with a central positioning column 20 at the upper end thereof for facilitating the installation with a punching machine.
The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the present invention, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention are all included within the protection scope of the present invention.
Claims (6)
1. The utility model provides a circuit breaker thermal trip component, includes connecting plate (1), heating element (2), bimetallic strip (3), iron core (4), the upper end of connecting plate (1) with the upper end fixed connection of heating element (2), through the riveting fixed between bimetallic strip (3), heating element (2), iron core (4), the lower extreme of connecting plate (1) is equipped with screw hole (5), its characterized in that: the iron core (4) is integrally punched and formed with at least two riveting columns (6), the iron core is riveted with the bimetallic strip (3) and the heating element (2) through the riveting columns (6), and punching holes (7) are formed in the positions, corresponding to the riveting columns (6), of the back of the iron core (4).
2. The riveting die is used for riveting the thermal trip element of the circuit breaker according to claim 1, and comprises an upper template (8) and a lower template (9) which are arranged oppositely up and down, and is characterized in that: cope match-plate pattern (8) bottom be equipped with punching press core (10) that riveting post (6) suited, lower bolster (9) one end is equipped with fixed mounting piece (11), the other end is equipped with slidable mounting piece (13) through slide rail (12), fixed mounting piece (11) front end be equipped with screw hole (5) matched with first reference column (14) of connecting plate (1), slidable mounting piece (13) upper end is equipped with mounting panel (15), be equipped with on mounting panel (15) with second reference column (16) that punching press hole (7) of iron core (4) suited, the rear end of slidable mounting piece (13) is equipped with advancing mechanism (17).
3. The clinch die of claim 2, wherein: the propelling mechanism (17) is a cylinder.
4. The clinch die of claim 2, wherein: the top of the punching core (10) is an arc-shaped surface (18).
5. The clinch die of claim 2, wherein: and the upper end of the upper template (8) is provided with a mounting flange (19).
6. The clinch die of claim 5, wherein: the upper end of the mounting flange (19) is provided with a central positioning column (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121558978.1U CN215008115U (en) | 2021-07-09 | 2021-07-09 | Thermal tripping element of circuit breaker and riveting die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121558978.1U CN215008115U (en) | 2021-07-09 | 2021-07-09 | Thermal tripping element of circuit breaker and riveting die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215008115U true CN215008115U (en) | 2021-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121558978.1U Active CN215008115U (en) | 2021-07-09 | 2021-07-09 | Thermal tripping element of circuit breaker and riveting die |
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| Country | Link |
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| CN (1) | CN215008115U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114613648A (en) * | 2022-03-22 | 2022-06-10 | 浙江泰嘉和电器有限公司 | Conductive system on circuit breaker |
-
2021
- 2021-07-09 CN CN202121558978.1U patent/CN215008115U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114613648A (en) * | 2022-03-22 | 2022-06-10 | 浙江泰嘉和电器有限公司 | Conductive system on circuit breaker |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: The utility model relates to a thermal tripping element of a circuit breaker and a riveting die Effective date of registration: 20220308 Granted publication date: 20211203 Pledgee: Zhejiang Yueqing Rural Commercial Bank Co.,Ltd. Pledgor: Zhejiang Jianshen Electrical Appliance Co.,Ltd. Registration number: Y2022330000304 |