CN210722925U - Conducting strip of miniature circuit breaker and miniature circuit breaker - Google Patents
Conducting strip of miniature circuit breaker and miniature circuit breaker Download PDFInfo
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- CN210722925U CN210722925U CN201922114350.1U CN201922114350U CN210722925U CN 210722925 U CN210722925 U CN 210722925U CN 201922114350 U CN201922114350 U CN 201922114350U CN 210722925 U CN210722925 U CN 210722925U
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- circuit breaker
- miniature circuit
- connecting portion
- conductive sheet
- curb plate
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Abstract
The utility model discloses a conducting strip and miniature circuit breaker of miniature circuit breaker, including input, connecting portion and output, the input passes through connecting portion and is connected with the output, and connecting portion are the setting of V style of calligraphy, wherein, are equipped with the fixed slot on the top of connecting portion; the utility model discloses stable in structure, fixed convenient, arc extinguishing characteristics such as effectual.
Description
Technical Field
The utility model relates to a miniature circuit breaker, concretely relates to miniature circuit breaker's conducting strip and miniature circuit breaker.
Background
The miniature circuit breaker is also called a miniature circuit breaker, is suitable for overload and short-circuit protection of lines with alternating current of 50/60Hz, rated voltage of 230/400V and rated current of 63A, and can also be used for infrequent operation and conversion of the lines under normal conditions.
When the movable and stationary contacts in the circuit breaker are separated due to faults such as short circuit and the like, electric arcs can be generated between the movable and stationary contacts, the electric arcs delay the disconnection time of the switch, reduce the disconnection performance of the switch, and even cause serious burning loss of loads and circuit breaker parts in the circuit.
The miniature circuit breaker is internally provided with the conducting strips, and has the function of arc guiding, so that the electric arcs generated by the movable and fixed contacts are introduced into the arc chamber through the conducting strips, the dead time of the electric arcs at the movable and fixed contacts is shortened, and the quick extinguishing of the electric arcs is facilitated.
However, the existing conducting strip is installed on the shell, is not firm, and easily falls off or shifts in the transportation process, so that the actual arc striking effect is affected, the contact is caused to break down, and the actual using effect is affected.
Disclosure of Invention
The utility model discloses the main technical problem who solves provides a miniature circuit breaker's conducting strip and miniature circuit breaker.
The utility model discloses the technical scheme who solves its technical problem and adopt is: the utility model provides a miniature circuit breaker's conducting strip, includes input, connecting portion and output, and the input passes through connecting portion and is connected with the output, and connecting portion are the setting of V style of calligraphy, and wherein, are equipped with the fixed slot on the top of connecting portion.
By adopting the structure, three-point fixation is formed, the common conducting plate is fixed at two ends, the structure forms three-point fixation, and the connecting part is arranged in a V shape, so that a triangular fixing structure is formed, the fixing strength of the conducting plate is ensured, and the arc striking effect of the conducting plate is ensured.
Wherein, the connecting part is provided with a reinforcing rib.
The setting of strengthening rib improves holistic compressive strength, increases the radiating effect, guarantees at the in-process of striking, and whole conducting strip striking is more stable.
Wherein the reinforcing rib extends to the output end.
The reinforcing rib extends to the output end, so that the overall arc striking effect is further improved, and the overall compressive strength of the conducting strip is improved.
Wherein, the width of strengthening rib is one fifth of connecting portion width at least.
The width of the reinforcing ribs is limited, and the overall stability is further improved.
Wherein, connecting portion include first curb plate and second curb plate, and first curb plate forms the V style of calligraphy with the second curb plate, and the angle that first curb plate and second curb plate formed is A, and A is greater than or equal to 20 and is less than or equal to 60.
Compared with the prior art, the angle is limited, the sharp angle is designed to lead the electric arc to the conducting sheet more easily, and the overall arc-striking transmission speed is improved.
The first fixing part and the second fixing part are respectively connected with two sides of the second side plate and are symmetrically arranged relative to the center of the second side plate.
The setting of two fixed parts further improves the effect of whole fixed.
Wherein, the input end is provided with a silver contact.
The arrangement of the silver contact improves the whole conductive performance, and the conductive effect of the silver contact is superior to that of the copper contact.
Wherein the silver contact is welded and fixed on the input end.
Adopt welded fastening's mode, it is fixed to facilitate the installation more, and here can be for being equipped with the recess on the input, and silver contact part stretches into to the recess in, then welded fastening.
The input end comprises a first vertical portion and a first bending portion, the first vertical portion is connected with the connecting portion through the first bending portion, and the first bending portion is connected with the connecting portion through the cambered surface.
The adoption of the multi-section bending structure greatly improves the arc striking speed, increases the elasticity of the first vertical part and keeps the elasticity for a long time.
The utility model provides a miniature circuit breaker, includes the casing, wherein, still includes foretell miniature circuit breaker's conducting strip, is equipped with the spacing groove with the connecting portion adaptation on the casing, be equipped with on the spacing groove with the fixed slot adaptation fixed protrusion.
By adopting the structure, the fixing strength of the conducting strip is improved, and the conducting strip is prevented from falling off in the transportation or practical process to influence the arc striking effect.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 2 is a plan view of embodiment 1 of the present invention;
fig. 3 is a side view of embodiment 1 of the present invention;
fig. 4 is a schematic structural diagram of embodiment 2 of the present invention;
fig. 5 is a partial sectional view of embodiment 2 of the present invention.
Detailed Description
Example 1:
referring to fig. 1-3, a conductive sheet of a miniature circuit breaker includes an input terminal 1, a connecting portion 2 and an output terminal 3, the input terminal 1 is connected with the output terminal 3 through the connecting portion 2, the specific structure is that the input terminal 1 includes a first vertical portion 11 and a first bending portion 12, the first vertical portion 11 is connected with a second side plate 22 through the first bending portion 12, the first bending portion 12 is connected with the connecting portion 2 through an arc surface, the first vertical portion 11 is also connected with the first bending portion 12 through an arc surface, and the first vertical portion 11, the first bending portion 12 and the second side plate 22 are connected to form a Z-shaped structure. Be equipped with silver contact 111 on the first vertical part 11, silver contact 111 welded fastening adopts welded fastening's mode on first vertical part 11, and it is fixed to facilitate the installation more, and here can be for being equipped with the recess on the input 1, and silver contact 111 part stretches into to the recess in, then welded fastening. Through the setting of silver contact 111, improve holistic electric conductivity, the electric conduction effect of silver contact 111 is superior to the electric conduction effect of copper contact. The input end 1 adopts a multi-section bending structure, so that the arc striking speed is greatly improved, and meanwhile, the elasticity of the first vertical part 11 is increased and the first vertical part is kept for a long time.
Connecting portion 2 includes first curb plate 21 and second curb plate 22, and first curb plate 21 and second curb plate 22 form the V style of calligraphy, and the angle that first curb plate 21 and second curb plate 22 formed is A, and 20A is greater than or equal to and is less than or equal to 60. Here, a is preferably 50 °. Compared with the prior art, the angle is limited, the design of the V-shaped sharp angle is easier to lead the electric arc to the conducting strip, and the speed of overall arc striking transmission is improved. The second side plate 22 is provided with a first fixing portion 221 and a second fixing portion 222, the first fixing portion 221 and the second fixing portion 222 are respectively connected to two sides of the second side plate 22, and the two fixing portions are symmetrically arranged relative to the center of the second side plate 22. Further, all be equipped with breach 223 on two fixed parts, adopt the setting of breach 223, do benefit to the fixed of fixed part more. The second side plate 22 is provided with a protrusion 224, and the protrusion 224 is located on the front surface of the second side plate 22 to enhance the overall strength.
The joint of the first side plate 21 and the second side plate 22 is a top end position, a fixing groove 24 is formed in the top end, and the fixing groove 24 is used for being fixed with the shell to form a triangular fixing structure.
The other end of the first side plate 21 is connected with the output end 3, the first side plate 21 is provided with a reinforcing rib 211, the reinforcing rib 211 extends to the output end 3, the width of the reinforcing rib 211 is at least one fifth of the width of the first side plate 21, and the width of the reinforcing rib 211 is preferably one third. The setting of strengthening rib 211 improves holistic compressive strength, increases the radiating effect, guarantees at the in-process of striking, and whole conducting strip striking is more stable.
Be equipped with protruding portion 31 on the output 3 both sides, protruding portion 31 is used for with the casing fixed for output 3 is better fixes and carries out the arc extinguishing under the arc extinguishing chamber.
Input 1, connecting portion 2 and output 3 are specifically stamping workpiece integrated into one piece.
Adopt this kind of structure setting, form three point fixation, the both ends of conducting strip and the top of connecting portion 2 form three point fixation, because connecting portion 2 sets up for the V style of calligraphy, has formed triangle fixed knot and has constructed, guarantees the fixed strength of conducting strip to guarantee the striking effect of conducting strip, prevent that the conducting strip from taking place to drop or shift in transportation or practical process.
Example 2:
referring to fig. 4-5, a miniature circuit breaker includes a housing 4 and a conducting strip 5, and the detailed structure of the conducting strip 5 has been described in detail in embodiment 1, so that the detailed description is omitted here. The housing 4 is provided with a limit groove 41 adapted to the connecting portion 2, and the limit groove 41 is provided with a fixing protrusion 411 adapted to the fixing groove 24. By adopting the structure, the fixing of the conducting strip 5 is firmer and more stable through the limiting groove 41 and the fixing protrusion 411, and the conducting strip 5 is prevented from falling off in the transportation or the practical process to influence the arc striking effect.
Claims (10)
1. The utility model provides a miniature circuit breaker's conducting strip, includes input, connecting portion and output, and the input passes through connecting portion to be connected with the output, and connecting portion are the setting of V style of calligraphy, its characterized in that: the top end of the connecting part is provided with a fixing groove.
2. A conductive sheet for a miniature circuit breaker according to claim 1, wherein: the connecting part is provided with a reinforcing rib.
3. A conductive sheet for a miniature circuit breaker according to claim 1, wherein: the reinforcing ribs extend to the output end.
4. A conductive sheet for small-sized circuit breakers, as set forth in claim 2 or 3, wherein: the width of the reinforcing ribs is at least one fifth of the width of the connecting parts.
5. A conductive sheet for a miniature circuit breaker according to claim 1, wherein: connecting portion include first curb plate and second curb plate, and first curb plate forms the V style of calligraphy with the second curb plate, and the angle that first curb plate and second curb plate formed is A, and A is greater than or equal to 20 and is less than or equal to 60.
6. A conductive sheet for a miniature circuit breaker according to claim 5, wherein: the second side plate is provided with a first fixing part and a second fixing part, the first fixing part and the second fixing part are respectively connected with two sides of the second side plate, and the first fixing part and the second fixing part are symmetrically arranged relative to the center of the second side plate.
7. A conductive sheet for a miniature circuit breaker according to claim 1, wherein: the input end is provided with a silver contact.
8. A conductive sheet for a miniature circuit breaker according to claim 7, wherein: the silver contact is welded and fixed on the input end.
9. A conductive sheet for small-sized circuit breakers, as set forth in claim 7 or 8, wherein: the input end comprises a first vertical portion and a first bending portion, the first vertical portion is connected with the connecting portion through the first bending portion, and the first bending portion is connected with the connecting portion through the cambered surface.
10. A miniature circuit breaker comprising a housing, characterized in that: the conductive sheet of a miniature circuit breaker as claimed in any one of claims 1 to 9, further comprising a position-limiting groove fitted to the connecting portion on the case, and a fixing protrusion fitted to the fixing groove on the position-limiting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922114350.1U CN210722925U (en) | 2019-11-29 | 2019-11-29 | Conducting strip of miniature circuit breaker and miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922114350.1U CN210722925U (en) | 2019-11-29 | 2019-11-29 | Conducting strip of miniature circuit breaker and miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210722925U true CN210722925U (en) | 2020-06-09 |
Family
ID=70930900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922114350.1U Active CN210722925U (en) | 2019-11-29 | 2019-11-29 | Conducting strip of miniature circuit breaker and miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210722925U (en) |
-
2019
- 2019-11-29 CN CN201922114350.1U patent/CN210722925U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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 conductive sheet of a miniature circuit breaker and a miniature circuit breaker Effective date of registration: 20211023 Granted publication date: 20200609 Pledgee: Industrial Bank Limited by Share Ltd. Wenzhou Yueqing branch Pledgor: Yueqing riye Electric Co.,Ltd. Registration number: Y2021330002035 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |