CN214672480U - Electromagnetic residual current operated circuit breaker with arc striking structure - Google Patents
Electromagnetic residual current operated circuit breaker with arc striking structure Download PDFInfo
- Publication number
- CN214672480U CN214672480U CN202120265913.1U CN202120265913U CN214672480U CN 214672480 U CN214672480 U CN 214672480U CN 202120265913 U CN202120265913 U CN 202120265913U CN 214672480 U CN214672480 U CN 214672480U
- Authority
- CN
- China
- Prior art keywords
- contact
- static contact
- circuit breaker
- residual current
- operated circuit
- 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
Images
Abstract
The utility model discloses an electromagnetic type residual current operated circuit breaker with striking structure belongs to low-voltage apparatus technical field, and it is including the casing that is used for holding the accessory for moving contact and the static contact of control break-make, the casing both sides are equipped with and supply moving contact and static contact installation to form first binding post and the second binding post that switches on, and wherein the static contact below is equipped with the arc-leading way, and moving contact and static contact turn-on connection respectively have realized the regional disconnected function of contact, have increased the arc-leading way simultaneously, when short circuit or heavy current are disconnected appearing, the powder ink and the impurity of production can form effective discharge, thereby avoided because of around a large amount of impurity and powder ink gathering contact, form the possibility that the electric current switched on again when causing the product to be in the separating brake state, there is the bad phenomenon of power consumption potential safety hazard in the load end.
Description
Technical Field
The utility model belongs to the technical field of low-voltage apparatus, specifically speaking relates to an electromagnetic type residual current operated circuit breaker with striking structure.
Background
Residual current operated circuit breaker is as important switching apparatus among the low-voltage apparatus, and it is widely used for in the electric circuit, and residual current operated circuit breaker has the earth leakage protection function, and when the electric leakage condition appeared in the circuit, when the leakage current reached residual action value, residual current operated circuit breaker all can automatic tripping operation cut off the power to guarantee equipment and personnel's safety.
The existing residual current operated circuit breakers have the following disadvantages in use.
Because the contact area in the residual current operated circuit breaker is closed, if the product breaks off large current, an electric arc can be generated, the contact can be correspondingly burnt, and some powdered ink or impurities are generated to be gathered around the contact. The product is in an off state, the possibility of conduction (through powder ink conduction) still exists, and the load end has potential safety hazards of electricity utilization. Therefore, it is necessary to provide an electromagnetic residual current operated circuit breaker having an arc striking structure.
Disclosure of Invention
The regional closed problem that is of inside contact to current residual current operated circuit breaker, the utility model provides an electromagnetic type residual current operated circuit breaker with striking structure, casing both sides are equipped with and supply moving contact and static contact installation to form first binding post and the second binding post that switches on, and wherein the static contact below is equipped with the arc guide way. The first wiring terminal is internally provided with a wiring board which is connected with the moving contact through a twisted wire, so that the contact area on the residual current operated circuit breaker is disconnected, if powdered ink or impurities generated when large current is disconnected are discharged through an arc-leading channel, the possibility that current conduction is formed when a product is in a brake-off state due to the fact that a large amount of impurities and powdered ink are gathered around the contact is avoided, and the bad phenomenon that potential safety hazards of power utilization exist at a load end.
In order to solve the above problems, the utility model adopts the following technical proposal.
An electromagnetic residual current operated circuit breaker with an arc striking structure comprises a shell for accommodating accessories, a moving contact and a static contact for controlling on-off,
and a first wiring terminal and a second wiring terminal which are used for installing and conducting the moving contact and the static contact are arranged on two sides of the shell, wherein an arc striking channel is arranged below the static contact.
Preferably, a wiring board is arranged in the first wiring terminal, and the wiring board is connected to the movable contact through a twisted wire.
Preferably, the wiring board forms concave structure towards first binding post direction, and wherein concave formula wiring board upper end is arranged in first binding post and is formed the conduction end, and concave formula wiring board lower extreme is straight extension downwards, forms the straight portion that supplies the binding post joint in the casing.
Preferably, one end of the static contact extends downwards and obliquely to form a clamping portion for limiting and installing the static contact, the clamping portion abuts against the arc ignition channel, the other end of the static contact extends upwards and is bent along the direction of the second wiring terminal to form an inward concave structure, and the lower end of the inward concave structure of the static contact is arranged in the second wiring terminal.
Preferably, a zero sequence current transformer for the twisted wire to pass through is further arranged in the shell.
Advantageous effects
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a casing both sides are equipped with and supply moving contact and static contact installation to form first binding post and the second binding post that switches on, and wherein the static contact below is equipped with the arc-leading way, and moving contact and static contact turn-on connection respectively have realized the regional branch function of contact, have added the arc-leading way simultaneously, if have the powder ink and the impurity formation effectual discharge that can make the production when the heavy current divides absolutely.
Drawings
Fig. 1 is a schematic structural diagram of an electromagnetic residual current operated circuit breaker with an arc striking structure.
The corresponding relationship between the reference numbers of the figures and the names of the components in the figures is as follows:
1. a first connection terminal; 2. a wiring board; 3. twisting the threads; 4. a zero sequence current transformer; 5. a moving contact; 6. static contact; 7. an arc striking way; 8. and a second connection terminal.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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.
As shown in fig. 1, which is a schematic structural diagram of an electromagnetic residual current operated circuit breaker with an arc striking structure according to a preferred embodiment of the present invention, the electromagnetic residual current operated circuit breaker includes a housing for accommodating a fitting, a moving contact 5 and a static contact 6 for controlling on/off, a first connection terminal 1 and a second connection terminal 8 are disposed on two sides of the housing for the moving contact 5 and the static contact 6 to be installed and conducted, wherein an arc striking channel 7 is disposed below the static contact 6;
in this embodiment, a wiring board 2 is arranged in the first wiring terminal 1, the wiring board 2 is connected to a movable contact 5 through a twisted wire 3, and the movable contact 5 is connected with the first wiring terminal 1 to form conduction through the design of the twisted wire 3;
in the embodiment, the wiring board 2 forms an inward concave structure towards the first wiring terminal 1, wherein the upper end of the inward concave wiring board 2 is arranged in the first wiring terminal 1 to form a conducting end, the lower end of the inward concave wiring board 2 extends downwards and straightly to form a straight part for the wiring board 2 to be clamped in the shell, the wiring board 2 is clamped in the shell more stably due to the design of the straight part, and meanwhile, the other end of the inward concave wiring board is arranged in the first wiring terminal 1 to realize conduction;
in this embodiment, one end of the static contact 6 extends downward and obliquely to form a clamping portion for limiting and installing the static contact 6, the clamping portion abuts against the arc-leading channel 7, the other end of the static contact 6 extends upward and is bent along the direction of the second wiring terminal 8 to form an inward-concave structure, the lower end of the inward-concave structure of the static contact 6 is arranged in the second wiring terminal 8, and the clamping portion abuts against the arc-leading channel 7 obliquely, so that the static contact 6 is more firmly installed in the housing, and meanwhile, the other end of the static contact is connected into the second wiring terminal 8 to form effective conduction of the end of the static contact 6;
in this embodiment, a zero sequence current transformer 4 through which the twisted wire 3 passes is further disposed in the housing.
The working principle is as follows: when the product is switched on, the moving contact 5 and the static contact 6 are fully contacted and closed, and when the product is switched off, the moving contact 5 and the static contact 6 are separated. When the product breaks off large current, electric arc can be generated, the temperature of an arc column can reach more than 6000 ℃, the contact can be seriously burnt, and generated impurities or powder ink can be smoothly discharged through an arc-leading channel 7 below the contact area, so that the contact area only contains a small amount of or no impurities or powder ink, even no impurities and the like. When the moving contact 5 is disconnected with the static contact 6, no current is conducted, the load end is very safe, and the breaking capacity of the product is improved.
The above description is for further details of the present invention, and it is not assumed that the embodiments of the present invention are limited to these descriptions, and it is obvious to those skilled in the art that the present invention can be implemented by a plurality of simple deductions or replacements without departing from the concept of the present invention, and all should be considered as belonging to the protection scope defined by the claims submitted by the present invention.
Claims (5)
1. An electromagnetic residual current operated circuit breaker with an arc striking structure comprises a shell for accommodating accessories, a movable contact (5) and a fixed contact (6) for controlling on-off,
the method is characterized in that:
and a first wiring terminal (1) and a second wiring terminal (8) which are used for installing and conducting the moving contact (5) and the static contact (6) are arranged on two sides of the shell, wherein an arc striking channel (7) is arranged below the static contact (6).
2. The electromagnetic residual current operated circuit breaker with arc striking structure as claimed in claim 1, characterized in that: a wiring board (2) is arranged in the first wiring terminal (1), and the wiring board (2) is connected to the movable contact (5) through a twisted wire (3).
3. The electromagnetic residual current operated circuit breaker with arc striking structure as claimed in claim 2, characterized in that: wiring board (2) form indent formula structure towards first binding post (1) direction, wherein indent formula wiring board (2) upper end is arranged in first binding post (1) and is formed the conduction end, and indent formula wiring board (2) lower extreme is straight extension downwards, forms the straight portion that supplies binding post (2) joint in the casing.
4. The electromagnetic residual current operated circuit breaker with arc striking structure as claimed in claim 1, characterized in that: one end of the static contact (6) extends downwards obliquely to form a clamping portion for limiting installation of the static contact (6), the clamping portion abuts against the arc ignition channel (7), the other end of the static contact (6) extends upwards and is bent along the direction of the second wiring terminal (8) to form an inwards concave structure, and the lower end of the inwards concave structure of the static contact (6) is arranged in the second wiring terminal (8).
5. The electromagnetic residual current operated circuit breaker with arc striking structure as claimed in claim 1, characterized in that: and a zero sequence current transformer (4) for the twisted wire (3) to pass through is also arranged in the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120265913.1U CN214672480U (en) | 2021-01-31 | 2021-01-31 | Electromagnetic residual current operated circuit breaker with arc striking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120265913.1U CN214672480U (en) | 2021-01-31 | 2021-01-31 | Electromagnetic residual current operated circuit breaker with arc striking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214672480U true CN214672480U (en) | 2021-11-09 |
Family
ID=78520620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120265913.1U Active CN214672480U (en) | 2021-01-31 | 2021-01-31 | Electromagnetic residual current operated circuit breaker with arc striking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214672480U (en) |
-
2021
- 2021-01-31 CN CN202120265913.1U patent/CN214672480U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214672480U (en) | Electromagnetic residual current operated circuit breaker with arc striking structure | |
| CN111863465B (en) | Double-station circuit breaker, direct-current combined electrical apparatus applying same and working method | |
| CN205452130U (en) | Outdoor load switch | |
| CN205177693U (en) | High -voltage circuit -breaker | |
| CN211208376U (en) | Multifunctional circuit breaker | |
| CN203882915U (en) | Four-pole circuit breaker | |
| CN209434130U (en) | A kind of three-in-one overcurrent protection switch | |
| CN2556830Y (en) | Short-circuit current combined limiter | |
| CN218385095U (en) | Circuit breaker | |
| CN202058475U (en) | Lead connecting bus bar | |
| CN101587787A (en) | Isolating switch | |
| CN215417923U (en) | Outdoor high-voltage circuit breaker of swift installation of formula of cuting straightly | |
| CN218867918U (en) | Disconnect-type current limiting device convenient to overhaul | |
| CN214588655U (en) | Intelligent circuit breaker with leakage protection function | |
| CN218647861U (en) | Direct current breaker | |
| CN216671523U (en) | Moulded case circuit breaker with voltage detection function | |
| CN214672433U (en) | High-breaking molded case circuit breaker | |
| CN217280665U (en) | High-breaking-capacity universal circuit breaker diversion mechanism | |
| CN217061961U (en) | Automatic air circuit breaker for controlling output of generator | |
| CN220509950U (en) | Direct current breaker | |
| CN220233059U (en) | Leakage circuit breaker and electricity taking structure thereof | |
| CN219066743U (en) | Laminated copper bar type fuse box assembly | |
| AU2021221463B2 (en) | An arc earth leakage protection circuit breaker | |
| CN212874320U (en) | Safe and reliable's switch circuit breaker | |
| CN210110629U (en) | Novel mounting structure of inrush current controller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |