CN112289649A - Automatic partition type arc extinguishing shell for circuit breaker - Google Patents
Automatic partition type arc extinguishing shell for circuit breaker Download PDFInfo
- Publication number
- CN112289649A CN112289649A CN202011473032.5A CN202011473032A CN112289649A CN 112289649 A CN112289649 A CN 112289649A CN 202011473032 A CN202011473032 A CN 202011473032A CN 112289649 A CN112289649 A CN 112289649A
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- casing
- shell
- housing
- circuit breaker
- 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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/18—Means for extinguishing or suppressing arc
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
Landscapes
- Circuit Breakers (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The invention discloses an automatic partition type arc extinguishing shell for a circuit breaker, which comprises a base, a shell cover and a push button, wherein the top of the base is fixedly connected with the shell, the bottom of the right end of the shell is fixedly connected with an electric inlet buckle, the bottom of the left end of the shell is fixedly connected with an electric outlet buckle, the right end of the electric outlet buckle is rotatably connected with a brake block through a torsion spring rotating shaft, and the right side in the shell is fixedly connected with an insulating frame. According to the invention, firstly, the automatic isolating type arc extinguishing structure is adopted, so that the contacts can be isolated when the breaker is opened or closed, the generation of electric arcs when the contacts are opened and closed is reduced, and therefore, the damage of the contacts of the breaker and the high-temperature burning phenomenon are reduced.
Description
Technical Field
The invention relates to the technical field of circuit breaker assemblies, in particular to an automatic isolating type arc extinguishing shell for a circuit breaker.
Background
The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition within a prescribed time. The circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to the application range, the high-voltage and low-voltage boundary lines are relatively vague, and the circuit breakers above 3kV are generally called high-voltage electric appliances. However, the existing breaker shell still has the defects that: most do not be equipped with automatic arc extinguishing structure, be difficult to cut off the processing between the contact when the circuit breaker opens or closes, easily produce electric arc when opening and shutting between the contact, when electric arc continuously exists, easily lead to the production of circuit breaker contact damage and high temperature burnout phenomenon, the security of using is relatively poor.
Disclosure of Invention
The invention aims to: in order to solve the problem that the traditional breaker shell is difficult to realize the separation arc extinguishing between contacts when the breaker is opened or closed, the automatic partition type arc extinguishing shell for the breaker is provided.
In order to achieve the purpose, the invention adopts the following technical scheme:
an automatic partition type arc extinguishing shell for a circuit breaker comprises a base, a shell cover and a push button, wherein the top of the base is fixedly connected with the shell, the bottom of the right end of the shell is fixedly connected with an electric buckle, the bottom of the left end of the shell is fixedly connected with an electric buckle, the right end of the electric buckle is rotatably connected with a brake block through a torsional spring rotating shaft, the right side of the inside of the shell is fixedly connected with an insulating frame, the inner side of the right end of the insulating frame is fixedly connected with a membrane for covering the left end of the electric buckle, two groups of rubber valve flaps mutually attached to the right end of the brake block are symmetrically arranged on the inner side of the left end of the insulating frame, the top of the shell cover is arranged at the top of the shell, a rotary seat is fixedly connected with the top of the shell cover, an air storage bottle is screwed at the top of the rotary seat, install solenoid electric valve on the gas-supply pipe, the inboard symmetry fixedly connected with of cap is two sets of spacing posts that are parallel distribution, sliding connection has the button that pushes away of laminating each other with the brake block between two sets of spacing posts, the inboard of cap is located the below symmetry fixedly connected with two sets of supporting shoes of pushing away the button, the point touch switch is all installed to the inboard of two sets of supporting shoes, the output of point touch switch and solenoid electric valve's input electric connection.
As a further description of the above technical solution:
the top of the electricity inlet buckle and the top of the electricity outlet buckle are both screwed and connected with fastening bolts penetrating through the shell.
As a further description of the above technical solution:
the insulating gas is selected to be C4F 7N.
As a further description of the above technical solution:
the insulating frame, the diaphragm and the rubber valve are all made of ethylene propylene rubber materials.
As a further description of the above technical solution:
the top of insulating frame is located the outside of gas-supply pipe and has seted up the jack, jack and gas-supply pipe are transition fit.
As a further description of the above technical solution:
the left end and the rear end top of the shell are both horizontally and slidably connected with locking blocks penetrating through the shell, and the left end and the rear end of the shell cover are both provided with locking grooves locked with the locking blocks.
As a further description of the above technical solution:
the left end and the rear end of the shell are located below the locking block and are symmetrically and fixedly connected with two sets of L-shaped blocks, and M-shaped elastic pieces are arranged between the two sets of L-shaped blocks and the locking block.
As a further description of the above technical solution:
and the inner side of the shell is positioned below the shell cover and is fixedly connected with a sealing ring which is mutually attached to the shell cover.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. in the invention, an automatic isolating type arc extinguishing structure is adopted, an insulating frame, a diaphragm and rubber valves are arranged on the inner side of a shell, the contact part between a brake block and an electric buckle can be subjected to insulating surrounding treatment, meanwhile, a point contact switch, a rotary seat, an air storage bottle, an air conveying pipe and an electromagnetic control valve are arranged on the shell cover, the point contact switch can be contacted when a push button is opened leftwards or closed rightwards, the point contact switch can control the electromagnetic control valve to be opened for a period of time instantly, insulating gas stored in the air storage bottle can be filled into the insulating frame through the air conveying pipe, the original air in the insulating frame can be extruded and discharged through a gap between the two groups of rubber valves under the action of gas flow, an isolating type insulating environment can be formed in the insulating frame, and the structure can perform insulating isolating treatment between the contacts when a circuit breaker is opened or closed, the generation of electric arcs is reduced when the contacts are opened and closed, so that the damage of the contacts of the circuit breaker and the high-temperature burning phenomenon are reduced.
2. According to the invention, a combined mounting structure is adopted, the shell is provided with the locking block, the L-shaped block and the M-shaped elastic sheet, the shell cover is provided with the locking groove, when the shell cover slides downwards into the shell, under the action of contact extrusion force, the two groups of locking blocks can synchronously move outwards and extrude the M-shaped elastic sheet, when the locking groove in the shell cover and the locking block in the shell are in the same horizontal central line, the locking block can elastically slide into the locking groove under the action of the elastic force of the M-shaped elastic sheet, the structure is convenient for mounting and processing between the shell cover and the shell, and the convenience for mounting and dismounting of the circuit breaker is improved, so that the circuit breaker can be conveniently manufactured in the early stage and dismounted, overhauled and used in the later stage.
Drawings
Fig. 1 is a schematic diagram of a structure of an automatic isolating arc extinguishing housing for a circuit breaker according to the present invention;
FIG. 2 is a longitudinal disassembled view of the present invention;
FIG. 3 is a schematic perspective cross-sectional view of the housing cover of the present invention;
FIG. 4 is a schematic front cross-sectional view of the base, housing and cover of the present invention;
FIG. 5 is an enlarged partial view of the invention at A;
fig. 6 is a schematic perspective sectional view of the housing of the present invention.
Illustration of the drawings:
1. a base; 2. a housing; 201. an L-shaped block; 202. a seal ring; 3. a shell cover; 301. rotating the base; 302. locking the groove; 303. a support block; 304. a limiting column; 4. a push button; 5. charging the electric buckle; 6. a gas cylinder; 7. a locking block; 8. an M-shaped elastic sheet; 9. fastening a bolt; 10. a gas delivery pipe; 1001. an electromagnetic control valve; 11. a power outlet buckle; 12. a torsion spring shaft; 13. a brake block; 14. an insulating frame; 1401. a diaphragm; 1402. a rubber flap; 1403. a jack; 15. and (6) a point contact switch.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: an automatic partition type arc extinguishing shell for a circuit breaker comprises a base 1, a shell 2, a shell cover 3 and a push button 4, wherein the top of the base 1 is fixedly connected with the shell 2, the bottom of the right end of the shell 2 is fixedly connected with an electric buckle 5, the bottom of the left end of the shell 2 is fixedly connected with an electric buckle 11, the right end of the electric buckle 11 is rotatably connected with a brake block 13 through a torsion spring rotating shaft 12, the right side inside the shell 2 is fixedly connected with an insulating frame 14, the inner side of the right end of the insulating frame 14 is fixedly connected with a diaphragm 1401 covering the left end of the electric buckle 5, the inner side of the left end of the insulating frame 14 is symmetrically provided with two groups of rubber valves 1402 which are mutually attached to the right end of the brake block 13, the two groups of rubber valves 1402 are arranged, the right end of the insulating frame 14 can be dynamically sealed in the rotating opening and closing process of the brake block 13, the shell cover 3 is installed at the top of the shell 2, insulating gas is filled to the inboard packing of gas bomb 6, the bottom intercommunication of spiral seat 301 has the gas-supply pipe 10 that runs through insulating frame 14, install solenoid electric valve 1001 on the gas-supply pipe 10, the inboard symmetrical fixedly connected with of cap 3 is two sets of spacing posts 304 that are parallel distribution, the setting of spacing post 304, the stability of pushing away the adjustment of 4 horizontal direction slides of button has been promoted, sliding connection has the button 4 that pushes away of laminating each other with brake block 13 between two sets of spacing posts 304, the inboard of cap 3 is located the two sets of supporting shoe 303 of the below symmetrical fixedly connected with of pushing away button 4, point touch switch 15 is all installed to the inboard of two sets of supporting shoe 303, the output of point touch switch 15 and the input electric connection of solenoid electric valve 1001, point touch switch 15 during operation just can control solenoid electric valve 1001 open for a period in the twinkling of an eye, the concentrated insulating gas of volume just can carry in the insulating frame 14 through gas.
Specifically, as shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 6, the top of the electric inlet buckle 5 and the electric outlet buckle 11 are both screwed and connected with a fastening bolt 9 penetrating through the casing 2, the fastening bolt 9 is arranged to fix the conductor part of the lead in the electric inlet buckle 5 and the electric outlet buckle 11, the insulating gas is C4F7N, the insulating property and the arc extinguishing effect of the insulating gas are improved by selecting the material, the insulating frame 14, the diaphragm 1401 and the rubber valve 1402 are all made of ethylene propylene rubber, the insulating effect of the insulating frame 14, the diaphragm 1401 and the rubber valve 1402 is improved by selecting the material, thereby the generation and the diffusion of electric arcs are reduced, the top of the insulating frame 14 is positioned at the outer side of the gas pipe 10 and is provided with an insertion hole 1403, the gas pipe 1403 is conveniently inserted into the insulating frame 14, the insertion hole 1403 is in transition fit with the gas pipe 10, and the transition fit mode is selected, the stability and the sealing effect of the connection between the gas pipe 10 and the insulating frame 14 are improved.
Specifically, as shown in fig. 1 to 5, the top of the left end and the top of the rear end of the housing 2 are horizontally slidably connected with a locking block 7 penetrating through the housing 2, the left end and the rear end of the housing cover 3 are both provided with a locking groove 302 locked with the locking block 7, the locking block 7 and the locking groove 302 are arranged, so that the housing 2 and the housing cover 3 can be conveniently locked, the left end and the rear end of the housing 2 are positioned below the locking block 7 and are symmetrically and fixedly connected with two sets of L-shaped blocks 201, the L-shaped blocks 201 are arranged, so that the mounting between the M-shaped elastic sheet 8 and the locking block 7 is facilitated, the M-shaped elastic sheet 8 is arranged between the two sets of L-shaped blocks 201 and the locking block 7, the M-shaped elastic sheet 8 is arranged, so that the locking between the locking block 7 and the locking groove 302 is facilitated, the inner side of the housing 2 is positioned below the housing cover 3 and is fixedly connected with a sealing ring 202 mutually attached to the housing cover 3, and the sealing ring 202 is arranged, so that.
The working principle is as follows: when the breaker is used, after the electric elements on the breaker are arranged in the shell 2, the shell cover 3 can vertically slide downwards into the inner side of the top of the shell 2, when the shell cover 3 slides into the shell 2, under the action of contact extrusion force, the two groups of locking blocks 7 can synchronously move outwards and extrude the M-shaped elastic sheet 8, when the bottom end of the shell cover 3 contacts the sealing ring 202, the locking groove 302 on the shell cover 3 and the locking block 7 on the shell 2 are in the same horizontal central line, under the action of the elastic force of the M-shaped elastic sheet 8, the locking block 7 can elastically slide into the locking groove 302, so that the assembly and processing of the early stage of the breaker are completed, in the daily use process, an operator can carry out the opening and closing operation of the breaker when holding and sliding the push button 4, when the push button 4 is opened leftwards or closed rightwards, the point contact switch 15 can be contacted, the point contact switch 15 can control the electromagnetic control valve 1001 to be opened for a period of, at this moment, the insulating gas stored in the gas bomb 6 can be filled into the insulating frame 14 through the gas pipe 10, under the action of gas flowing, the original air in the insulating frame 14 can be extruded and discharged through the gap between the two groups of rubber valves 1402, and at this moment, the insulating frame 14 is internally provided with an isolating insulating environment, so that the generation of electric arcs in the opening or closing process between the brake block 13 and the electric buckle 5 is reduced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The utility model provides an automatic wall formula arc extinguishing casing for circuit breaker, includes base (1), casing (2), cap (3) and pushes away button (4), its characterized in that, the top fixedly connected with casing (2) of base (1), the right-hand member bottom fixedly connected with of casing (2) is gone into electric knot (5), the left end bottom fixedly connected with of casing (2) goes out electric knot (11), the right-hand member that goes out electric knot (11) is rotated through torsional spring pivot (12) and is connected with brake block (13), the inside right side fixedly connected with insulating frame (14) of casing (2), the inboard fixedly connected with of right-hand member of insulating frame (14) coats diaphragm (1401) that goes into electric knot (5) left end, the inboard symmetry in left end of insulating frame (14) is installed two sets of rubber flap (1402) of laminating each other with brake block (13) right-hand member, cap (3) are installed at the top of casing (2), the right side of the top of the shell cover (3) is fixedly connected with a rotary seat (301), the top of the rotary seat (301) is connected with a gas storage bottle (6) in a screwing way, the inner side of the gas storage bottle (6) is filled with insulating gas, the bottom end of the rotary seat (301) is communicated with a gas transmission pipe (10) penetrating through an insulating frame (14), an electromagnetic control valve (1001) is arranged on the gas transmission pipe (10), two groups of limiting columns (304) which are distributed in parallel are symmetrically and fixedly connected with the inner side of the shell cover (3), a push button (4) which is mutually jointed with the brake block (13) is connected between the two groups of limiting columns (304) in a sliding way, two groups of supporting blocks (303) are symmetrically and fixedly connected with the inner side of the shell cover (3) below the push button (4), point contact switches (15) are arranged on the inner sides of the two groups of supporting blocks (303), the output end of the point contact switch (15) is electrically connected with the input end of the electromagnetic control valve (1001).
2. The automatic isolating arc extinguishing casing for the circuit breaker according to claim 1, wherein the top of the electric inlet buckle (5) and the electric outlet buckle (11) are screwed with fastening bolts (9) penetrating through the casing (2).
3. The self-closing arc chute housing of claim 1 wherein said insulating gas is selected to be C4F 7N.
4. The self-closing arc chute housing as in claim 1 wherein said insulating frame (14), membrane (1401) and rubber flap (1402) are all made of ethylene propylene rubber material.
5. The automatic block type arc extinguishing housing for the circuit breaker according to claim 4, wherein the top of the insulating frame (14) is located on the outer side of the gas transmission pipe (10) and is provided with an insertion hole (1403), and the insertion hole (1403) is in transition fit with the gas transmission pipe (10).
6. The automatic closing type arc extinguishing housing for the circuit breaker according to claim 1, wherein the top of the left end and the top of the rear end of the housing (2) are horizontally and slidably connected with a locking block (7) penetrating through the housing (2), and the left end and the rear end of the housing cover (3) are provided with locking grooves (302) locked with the locking block (7).
7. The automatic closing type arc extinguishing housing for the circuit breaker according to claim 6, wherein two sets of L-shaped blocks (201) are symmetrically and fixedly connected to the left end and the rear end of the housing (2) below the locking block (7), and an M-shaped elastic sheet (8) is installed between each set of L-shaped blocks (201) and the locking block (7).
8. The automatic closing arc extinguishing casing for the circuit breaker according to claim 6, characterized in that a sealing ring (202) attached to the casing cover (3) is fixedly connected to the inner side of the casing (2) below the casing cover (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011473032.5A CN112289649B (en) | 2020-12-15 | 2020-12-15 | Automatic partition type arc extinguishing shell for circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011473032.5A CN112289649B (en) | 2020-12-15 | 2020-12-15 | Automatic partition type arc extinguishing shell for circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112289649A true CN112289649A (en) | 2021-01-29 |
| CN112289649B CN112289649B (en) | 2021-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011473032.5A Active CN112289649B (en) | 2020-12-15 | 2020-12-15 | Automatic partition type arc extinguishing shell for circuit breaker |
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| Country | Link |
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| CN (1) | CN112289649B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115333052A (en) * | 2022-10-12 | 2022-11-11 | 深圳市伟业永升科技有限公司 | Emergency protection device installed on integrated circuit equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0540971A1 (en) * | 1991-11-04 | 1993-05-12 | Gec Alsthom Sa | High- or medium-voltage circuit breaker with triple motion |
| CN205244507U (en) * | 2015-12-30 | 2016-05-18 | 国家电网公司 | Automatically controlled aeration valve of SF6 electrical equipment |
| CN208240604U (en) * | 2018-01-18 | 2018-12-14 | 浙江正泰电器股份有限公司 | Arc extinguishing outlet passageway and breaker |
-
2020
- 2020-12-15 CN CN202011473032.5A patent/CN112289649B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0540971A1 (en) * | 1991-11-04 | 1993-05-12 | Gec Alsthom Sa | High- or medium-voltage circuit breaker with triple motion |
| CN205244507U (en) * | 2015-12-30 | 2016-05-18 | 国家电网公司 | Automatically controlled aeration valve of SF6 electrical equipment |
| CN208240604U (en) * | 2018-01-18 | 2018-12-14 | 浙江正泰电器股份有限公司 | Arc extinguishing outlet passageway and breaker |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115333052A (en) * | 2022-10-12 | 2022-11-11 | 深圳市伟业永升科技有限公司 | Emergency protection device installed on integrated circuit equipment |
| CN115333052B (en) * | 2022-10-12 | 2022-12-23 | 深圳市伟业永升科技有限公司 | Emergency protection device installed on integrated circuit equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112289649B (en) | 2021-05-25 |
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Effective date of registration: 20210423 Address after: 523500 Room 101, 234 Baoshi Road, Qishi Town, Dongguan City, Guangdong Province Applicant after: Guangdong Fanfan Industrial Investment Co.,Ltd. Address before: 210000 no.1-76, office building a, Zhongqiao village committee, Baguazhou street, Qixia District, Nanjing City, Jiangsu Province Applicant before: Jiangsu Zhijiao Technology Co.,Ltd. |
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