CN208806209U - A kind of breaker - Google Patents
A kind of breaker Download PDFInfo
- Publication number
- CN208806209U CN208806209U CN201821474206.8U CN201821474206U CN208806209U CN 208806209 U CN208806209 U CN 208806209U CN 201821474206 U CN201821474206 U CN 201821474206U CN 208806209 U CN208806209 U CN 208806209U
- Authority
- CN
- China
- Prior art keywords
- wiring
- contact plate
- contact
- circuit breaker
- movable contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 230000003068 static effect Effects 0.000 claims description 39
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000005219 brazing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000006978 adaptation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
It includes: shell, arc-chutes, stationary contact head plate, connecting terminal and transmission device that the utility model, which discloses a kind of breaker, arc-chutes and transmission device are all set in shell, connecting terminal is set to outside shell, one end of stationary contact head plate connects connecting terminal, the other end of stationary contact head plate is set in arc-chutes, and transmission device is connect with stationary contact head plate；Stationary contact head plate includes wire connecting portion and contact portion, wire connecting portion is parallel with contact portion and is located in Different Plane, contact portion is close to the bottom of shell, wire connecting portion deviates from the bottom of shell, wire connecting portion is provided with wiring hole and mounting hole, wiring hole close to wire connecting portion top and wire connecting portion be equipped with the annular convex platform extended from wiring hole to housing bottom, the internal diameter of annular convex platform and the diameter of wiring hole are identical, the top of contact portion is provided with stationary contact away from the side of housing bottom, and stationary contact contacts conducting with movable contact.The reliability of breaker can be improved in the utility model, and optimized production process is to reduce cost.
Description
Technical Field
The utility model relates to an electrical equipment technical field, concretely relates to circuit breaker.
Background
The breaker is a current switch device used for distributing electric energy and protecting power lines, motors and the like in real time, and can bear, close and disconnect current in a normal loop in real time according to the states of the circuit, such as normal, overload, short circuit, undervoltage and the like, so that the safety of the circuit is ensured. The static contact plate is one of the main components in the circuit breaker, one end of the static contact plate is exposed out of a shell of the circuit breaker to be used as a wiring terminal, and the other end of the static contact plate is arranged in the shell of the circuit breaker and is provided with a contact to be contacted with a transmission device. As shown in fig. 1, a conventional stationary contact board 10 has a mounting hole and a wiring hole at one end exposed outside a housing, and includes a bent portion 12 at the other end, the bent portion 12 is U-shaped, and a stationary contact 13 is disposed at the top end of the bent portion 12; and an arc extinguishing angle 11 is riveted in the middle of the static contact plate 10. The existing static contact has a complex structure, so that the resistance is large, the temperature rise is fast during working, the reliability of the circuit breaker is reduced, and the processing difficulty is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a circuit breaker aims at improving the reliability of circuit breaker, optimizes production technology with reduce cost.
In order to achieve the above object, the present invention provides a circuit breaker comprising: the arc extinguishing chamber and the transmission device are arranged in the shell, the wiring terminal is arranged outside the shell, one end of the static contact plate is connected with the wiring terminal, the other end of the static contact plate is arranged in the arc extinguishing chamber, and the transmission device is connected with the static contact plate; wherein,
a plurality of arc extinguishing grids are arranged in the arc extinguishing chamber;
the transmission device comprises a movable contact plate, and one end of the movable contact plate, facing one side of the fixed contact plate, is provided with a movable contact;
the static contact board includes wiring portion and contact portion, wiring portion with contact portion is parallel and is located different planes, contact portion is close to the bottom of casing, wiring portion deviates from the bottom of casing, wiring portion is provided with wiring hole and mounting hole, wiring hole is close to wiring portion's top, just wiring portion is equipped with certainly wiring hole to the annular boss that the casing bottom extends, the internal diameter of annular boss with the diameter in wiring hole is the same, the top of contact portion deviates from one side of casing bottom is provided with the static contact, the static contact with the movable contact switches on.
Preferably, the static contact board further comprises a connecting part, and two ends of the connecting part are respectively connected with the wiring part and the contact part.
Preferably, the connection portion and the wiring/contact portion are at an obtuse angle.
Preferably, an arc extinguishing chamber is further arranged in the arc extinguishing chamber, and the arc extinguishing chamber is in contact with one side of the wiring portion, which deviates from the bottom of the shell.
Preferably, the circuit breaker further comprises a tripping device, and the tripping device is arranged at the other end of the casing, where the static contact plate is arranged relatively.
Preferably, the movable contact board is hinged with the inner side of the shell, and the other end of the movable contact board, which is opposite to the movable contact, is connected with the tripping device.
Preferably, the movable contact board is connected with the tripping device through a plurality of copper wire bundles.
Preferably, the movable contact plate and the copper wire bundle are fixed through brazing.
The utility model discloses among the technical scheme, the circuit breaker includes: the arc extinguishing chamber is arranged in the shell, the static contact plate is arranged in the shell, the wiring terminal is arranged in the shell, and the transmission device comprises a movable contact plate; the static contact board includes wiring portion and contact portion, wiring portion and contact portion are parallel and lie in different planes, contact portion is close to the bottom of casing, wiring portion deviates from the bottom of casing, wiring portion is provided with wiring hole and mounting hole, wiring hole is close to the top of wiring portion, and wiring portion is equipped with the annular boss that extends to the casing bottom from the mounting hole, the internal diameter of annular boss is the same with the diameter of mounting hole, one side that the top of contact portion deviates from the casing bottom is provided with the static contact, the static contact switches on with the movable contact point contact. This novel static contact plate simple structure can the current circuit breaker of adaptation, can optimize production technology, show reduction in production cost, has improved the reliability of circuit breaker simultaneously.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram of a static contact plate according to the prior art;
fig. 2 is a schematic structural diagram of the circuit breaker of the present invention;
fig. 3 is a schematic structural view of the static contact plate of the present invention;
fig. 4 is a schematic structural view of fig. 3 from another angle.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | Static contact board | 231 | Wire connection part |
| 11 | Arc extinguishing angle | 231a | Wiring hole |
| 12 | A bent part | 231b | Annular boss |
| 13 | Static contact | 232 | Contact part |
| 20 | Circuit breaker | 232a | Static contact |
| 21 | Shell body | 233 | Connecting part |
| 22 | Arc extinguishing chamber | 24 | Connecting terminal |
| 22a | Arc extinguishing grid | 25 | Movable contact board |
| 22b | Arc extinguishing chamber | 25a | Movable contact |
| 23 | Static contact board | 26 | Tripping device |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
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 efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.
Referring to fig. 2 to 4, in an embodiment of the present invention, the circuit breaker 20 includes: the arc extinguishing chamber 22 and the transmission device are arranged in the shell 21, the connection terminal 24 is arranged outside the shell 21, one end of the static contact plate 23 is connected with the connection terminal 24, the other end of the static contact plate 23 is arranged in the arc extinguishing chamber 22, and the transmission device is connected with the static contact plate 23; wherein,
a plurality of arc-extinguishing grids 22a are arranged in the arc-extinguishing chamber 22; the transmission device comprises a movable contact plate 25, and one end of the movable contact plate 25, facing one side of the fixed contact plate 23, is provided with a movable contact 25 a;
referring specifically to fig. 3, stationary contact board 23 includes wiring portion 231 and contact portion 232, wiring portion 231 is parallel with contact portion 232 and is located different planes, contact portion 232 is close to the bottom of casing 21, wiring portion 231 deviates from the bottom of casing 21, wiring portion 231 is provided with wiring hole 231a and mounting hole, wiring hole 231a is close to the top of wiring portion 231, and wiring portion 231 is equipped with the annular boss 231b that extends to the bottom of casing 21 from wiring hole 231a, the internal diameter of annular boss 231b is the same with the diameter of wiring hole 231a, one side that the top of contact portion 232 deviates from the bottom of casing 21 is provided with stationary contact 232a, stationary contact 232a contacts with movable contact 25 a. As can be seen from fig. 1 and 3, compared with the existing static contact plate 23, the shape structure is simplified, and the arc extinguishing angle 14 is eliminated, so that the processing time is saved, the resistivity of the static contact plate 23 can be reduced, the temperature rise is reduced under the condition of loading the same current, the heat productivity is reduced, and the working reliability of the circuit breaker 20 is improved.
The present embodiment provides a circuit breaker 20 including: the arc extinguishing chamber 22, the fixed contact plate 23, the connecting terminal 24 and the transmission device, wherein the transmission device comprises a movable contact plate 25, and one end of the movable contact plate 25, facing one side of the fixed contact plate 23, is provided with a movable contact 25 a; static contact board 23 includes wiring portion 231 and contact portion 232, wiring portion 231 is parallel with contact portion 232 and is located different planes, contact portion 232 is close to the bottom of casing 21, wiring portion 231 deviates from the bottom of casing 21, wiring portion 231 is provided with wiring hole 231a and mounting hole, wiring hole 231a is close to the top of wiring portion 231, and wiring portion 231 is equipped with the annular boss 231b that extends to the casing 21 bottom from the mounting hole, the internal diameter of annular boss 231b is the same with the diameter of mounting hole, one side that the top of contact portion 232 deviates from the casing 21 bottom is provided with static contact 232a, static contact 232a and movable contact 25a contact switch on. This novel static contact board 23 simple structure can the current circuit breaker 20 of adaptation, can optimize production technology, show reduction in production cost, has improved circuit breaker 20's reliability simultaneously.
Preferably, the stationary contact plate 23 further includes a connection part 233, and both ends of the connection part 233 are connected to the wiring part 231 and the contact part 232, respectively.
Preferably, the connection portion 233 makes an obtuse angle with the wire connection portion 231/contact portion 232.
Preferably, an arc extinguishing chamber 22b is further disposed in the arc extinguishing chamber 22, and the arc extinguishing chamber 22b contacts with a side of the wire connection portion 231 facing away from the bottom of the housing 21.
Preferably, the circuit breaker 20 further includes a trip device 26, and the trip device 26 is disposed in the housing 21 at the other end opposite to the stationary contact plate 23.
Preferably, the movable contact plate 25 is hinged with the inner side of the housing 21, and the other end of the movable contact plate 25 opposite to the movable contact 25a is connected with the trip device 26.
Preferably, the movable contact plate 25 is connected to the trip device 26 by a plurality of strands of copper.
Preferably, the movable contact plate 25 is fixed to the copper strand by brazing.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (8)
1. A circuit breaker, comprising: the arc extinguishing chamber and the transmission device are arranged in the shell, the wiring terminal is arranged outside the shell, one end of the static contact plate is connected with the wiring terminal, the other end of the static contact plate is arranged in the arc extinguishing chamber, and the transmission device is connected with the static contact plate; wherein,
a plurality of arc extinguishing grids are arranged in the arc extinguishing chamber;
the transmission device comprises a movable contact plate, and one end of the movable contact plate, facing one side of the fixed contact plate, is provided with a movable contact;
the static contact board includes wiring portion and contact portion, wiring portion with contact portion is parallel and is located different planes, contact portion is close to the bottom of casing, wiring portion deviates from the bottom of casing, wiring portion is provided with wiring hole and mounting hole, wiring hole is close to wiring portion's top, just wiring portion is equipped with certainly wiring hole to the annular boss that the casing bottom extends, the internal diameter of annular boss with the diameter in wiring hole is the same, the top of contact portion deviates from one side of casing bottom is provided with the static contact, the static contact with the movable contact switches on.
2. The circuit breaker of claim 1, wherein the stationary contact plate further comprises a connecting portion, both ends of the connecting portion being connected to the wiring portion and the contact portion, respectively.
3. The circuit breaker of claim 2, wherein the connection portion is at an obtuse angle to the wiring/contact portion.
4. The circuit breaker of claim 1, wherein an arc chute is further disposed within the arc chamber, the arc chute being in contact with a side of the wire connection portion facing away from the bottom of the housing.
5. The circuit breaker of claim 1, further comprising a trip device disposed within the housing opposite the other end at which the stationary contact plate is disposed.
6. The circuit breaker of claim 5, wherein the movable contact plate is hinged to an inside of the housing, and the other end of the movable contact plate opposite to where the movable contact is disposed is connected to the trip unit.
7. The circuit breaker of claim 6, wherein the movable contact plate is connected to the trip unit by a plurality of strands of copper.
8. The circuit breaker of claim 7, wherein the movable contact plate is secured to the copper strands by brazing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821474206.8U CN208806209U (en) | 2018-09-10 | 2018-09-10 | A kind of breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821474206.8U CN208806209U (en) | 2018-09-10 | 2018-09-10 | A kind of breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208806209U true CN208806209U (en) | 2019-04-30 |
Family
ID=66237178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821474206.8U Active CN208806209U (en) | 2018-09-10 | 2018-09-10 | A kind of breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208806209U (en) |
-
2018
- 2018-09-10 CN CN201821474206.8U patent/CN208806209U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 413002 No. 1 Xuefu Road West, Longling Industrial Park, Heshan District, Yiyang City, Hunan Province Patentee after: Hunan SDEC Intelligent Technology Co.,Ltd. Address before: 413002 No. 1 Xuefu Road West, Longling Industrial Park, Heshan District, Yiyang City, Hunan Province Patentee before: HUNAN SIDEKE SMART SWITCH Co.,Ltd. |