CN217306428U - Keep off gas seal structure and circuit breaker - Google Patents
Keep off gas seal structure and circuit breaker Download PDFInfo
- Publication number
- CN217306428U CN217306428U CN202220614767.3U CN202220614767U CN217306428U CN 217306428 U CN217306428 U CN 217306428U CN 202220614767 U CN202220614767 U CN 202220614767U CN 217306428 U CN217306428 U CN 217306428U
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- Prior art keywords
- circuit breaker
- seal structure
- keep
- shell
- elastic
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Abstract
The utility model discloses a keep off gas seal structure and circuit breaker, it includes the circuit breaker casing, the circuit breaker casing is located and is equipped with a plurality of mounting grooves between moving contact and the explosion chamber, be equipped with the keep off gas seal structure of a pair of installation in opposite directions in the mounting groove, keep off gas seal structure including having an open-ended casing and apron, form the installation space that can place the shell fragment between casing and the apron, the shell fragment part is passed the opening sets up, be equipped with the elastic component between shell fragment rear end and the apron, the front end upper surface of shell fragment is equipped with the inclined plane. The air blocking sealing structure can quickly form a closed space, and the sliding elastic piece does not influence closing. When the switch is switched on, the moving contact extrudes the V-shaped space formed by the two sliding elastic sheets so as to extrude the sliding elastic sheets to move towards two sides, and the airflow generated in the breaking process is closed, so that the arc is guided towards the direction of the arc extinguish chamber, and the arc is quickly extinguished.
Description
Technical Field
The utility model particularly relates to a keep off gas seal structure and circuit breaker.
Background
In the breaking process of the circuit breaker, because the energy of short-circuit current is large, the gas pressure can be rapidly increased, if the gas flows towards the arc extinguish chamber, the arc can be rapidly blown into the arc extinguish chamber, and arc extinction is facilitated; however, the gas generated moves in the opposite direction of the arc extinguish chamber, which causes the arc to move in the opposite direction, and the arc extinguish effect is poor, so that the mechanism and other parts are burnt out, and the switch is scrapped.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a keep off gas seal structure and circuit breaker.
In order to achieve the above purpose, the utility model provides a following technical scheme:
an air blocking sealing structure comprises a shell with an opening and a cover plate, wherein an installation space for placing an elastic sheet is formed between the shell and the cover plate, the elastic sheet partially penetrates through the opening, an elastic piece is arranged between the rear end of the elastic sheet and the cover plate, and an inclined plane is arranged on the upper surface of the front end of the elastic sheet.
The section of the elastic sheet is T-shaped.
The rear end of the elastic sheet is provided with a plurality of first elastic piece positioning holes.
The cover plate is provided with a plurality of second elastic part positioning holes.
The bottom of the shell is provided with a fixing hole.
The breaker with the gas blocking sealing structure comprises a breaker shell, wherein the breaker shell is positioned between a moving contact and an arc extinguish chamber and is provided with a plurality of mounting grooves, and the mounting grooves are internally provided with a pair of gas blocking sealing structures which are oppositely mounted.
The upper ends of the air blocking sealing structures which are oppositely arranged form a V-shaped guide groove.
The air blocking sealing structure is fixedly connected with the breaker shell through screws.
The utility model has the advantages that: the air blocking sealing structure can quickly form a closed space, and the sliding elastic piece does not influence closing. When the switch is switched on, the moving contact extrudes the V-shaped space formed by the two sliding elastic sheets so as to extrude the sliding elastic sheets to move towards two sides, and the airflow generated in the breaking process is closed, so that the arc is guided towards the direction of the arc extinguish chamber, and the arc is quickly extinguished.
Drawings
Fig. 1 is a schematic structural diagram of a circuit breaker.
Fig. 2 is a partial schematic view of a mounting slot of a circuit breaker.
Fig. 3 is a schematic structural view of the air blocking sealing structure.
Fig. 4 is a schematic sectional view of the air blocking seal structure.
FIG. 5 is another angular view of the air dam seal configuration.
Fig. 6 is a schematic view of the mating of two air blocking seal structures.
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 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 connected or 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.
As shown in the figure, an air-blocking sealing structure comprises a shell with an opening and a cover plate, an installation space for placing an elastic sheet is formed between the shell 32 and the cover plate 31, wherein the elastic sheet is made of DMC materials, part of the elastic sheet 33 penetrates through the opening, an elastic part 37 is arranged between the rear end of the elastic sheet and the cover plate, the elastic parts are springs and are multiple, sliding stability of the elastic sheet is convenient to guarantee, and an inclined plane 35 is arranged on the upper surface of the front end of the elastic sheet 33. The shell fragment can slide for the casing, it has the first state that extends the casing, and outside atress withdrawal casing in the second position, and two keep off the gas seal structure that sets up in opposite directions, its two shell fragments set up in opposite directions, two inclined planes form a V type guide way 39, when using, give the power that the shell fragment withdrawed the casing when being convenient for the moving contact closes a floodgate, and when separating brake, the shell fragment can be under the effect of elastic component again, the passageway between the explosion chamber and the inside circuit breaker of quick shutoff.
The section of the elastic sheet 33 is T-shaped, and can be limited in the shell 32, so that the elastic sheet is prevented from being separated from the shell and influencing installation and use.
The rear end of the elastic piece is provided with a plurality of first elastic piece positioning holes 38, the cover plate is provided with a plurality of second elastic piece positioning holes 36, and the two positioning holes are used for fixing the elastic pieces, so that the elastic pieces can be fixed, and the elastic pieces are prevented from being displaced to cause the abnormal resetting of the elastic pieces.
The bottom of the shell is provided with a fixing hole 34 for fixing the shell with a circuit breaker through a screw.
The circuit breaker with the gas blocking sealing structure comprises a circuit breaker shell 1, wherein the circuit breaker shell is located between a moving contact 4 and an arc extinguish chamber 2 and is provided with a plurality of mounting grooves 11, a pair of gas blocking sealing structures 3 which are oppositely mounted are arranged in the mounting grooves, the gas blocking sealing structures 3 are mounted at two ends of a moving path of the moving contact 4, and the elastic pieces can be squeezed open or separated by the elastic pieces when the gas blocking sealing structures are switched on and off.
The upper ends of the air blocking sealing structures which are oppositely arranged form V-shaped guide grooves, the moving contact moves towards the V-shaped guide grooves when being switched on, and then gives downward force along the inclined planes at the two ends, the downward force of the moving contact is converted into force for extruding the elastic sheet by utilizing the inclined planes, so that the elastic sheet compresses the elastic piece and moves towards the shell to complete switching-on operation, when the switching-off operation is carried out, the moving contact moves upwards quickly, and at the moment, the compressed spring applies counter force to the elastic sheet; the elastic sheets start to slide, the left elastic sheet and the right elastic sheet just seal the space, and all generated gas is gathered in the arc extinguish chamber.
The utility model has the advantages of can form airtight space fast to the shell fragment that slides does not influence the combined floodgate. When the switch is switched on, the moving contact extrudes the V-shaped space formed by the two sliding elastic sheets so as to extrude the sliding elastic sheets to move towards two sides.
The gas-blocking sealing structure is fixedly connected with the breaker shell through screws, so that the fixing reliability of the gas-blocking sealing structure is ensured.
The examples should not be construed as limiting the present invention, but any modifications made based on the spirit of the present invention should be within the scope of the present invention.
Claims (8)
1. The utility model provides a keep off gas seal structure which characterized in that: the elastic piece is arranged between the rear end of the elastic piece and the cover plate, and an inclined plane is arranged on the upper surface of the front end of the elastic piece.
2. The gas barrier seal structure according to claim 1, wherein: the section of the elastic sheet is T-shaped.
3. The gas barrier seal structure according to claim 1, wherein: the rear end of the elastic sheet is provided with a plurality of first elastic piece positioning holes.
4. The gas barrier seal structure according to claim 1, wherein: the cover plate is provided with a plurality of second elastic part positioning holes.
5. The gas barrier seal structure according to claim 1, wherein: the bottom of the shell is provided with a fixing hole.
6. A circuit breaker employing the gas barrier sealing structure of any one of claims 1 to 5, characterized in that: the circuit breaker comprises a circuit breaker shell, wherein the circuit breaker shell is positioned between a moving contact and an arc extinguish chamber and is provided with a plurality of mounting grooves, and a pair of air blocking sealing structures which are oppositely mounted are arranged in the mounting grooves.
7. The gasproof sealing structure of claim 6, wherein: the upper ends of the air blocking sealing structures which are oppositely arranged form a V-shaped guide groove.
8. The gas barrier seal structure according to claim 6, wherein: the air blocking sealing structure is fixedly connected with the breaker shell through a screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220614767.3U CN217306428U (en) | 2022-03-21 | 2022-03-21 | Keep off gas seal structure and circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220614767.3U CN217306428U (en) | 2022-03-21 | 2022-03-21 | Keep off gas seal structure and circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217306428U true CN217306428U (en) | 2022-08-26 |
Family
ID=82935838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220614767.3U Active CN217306428U (en) | 2022-03-21 | 2022-03-21 | Keep off gas seal structure and circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217306428U (en) |
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2022
- 2022-03-21 CN CN202220614767.3U patent/CN217306428U/en active Active
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