CN110739185A - small-sized circuit breakers - Google Patents
small-sized circuit breakers Download PDFInfo
- Publication number
- CN110739185A CN110739185A CN201911049673.5A CN201911049673A CN110739185A CN 110739185 A CN110739185 A CN 110739185A CN 201911049673 A CN201911049673 A CN 201911049673A CN 110739185 A CN110739185 A CN 110739185A
- Authority
- CN
- China
- Prior art keywords
- breaker
- insulator
- breaker shell
- shell
- mounting seat
- 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.)
- Pending
Links
- 239000012212 insulator Substances 0.000 claims abstract description 75
- 238000007789 sealing Methods 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/04—Means for indicating condition of the switching device
-
- 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
- H01H71/08—Terminals; Connections
-
- 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
- H01H71/10—Operating or release mechanisms
Landscapes
- Breakers (AREA)
Abstract
The invention relates to miniature circuit breakers, which are characterized by comprising a circuit breaker shell, insulators and an operation indicating box, wherein the circuit breaker shell is of a cuboid structure and comprises a front end face and a rear end face which are oppositely arranged, a left side face and a right side face which are oppositely arranged, and an upper surface and a lower surface which are oppositely arranged.
Description
Technical Field
The invention relates to the technical field of circuit breakers, in particular to small circuit breakers.
Background
The circuit breaker is important switch equipment in a power system, has dual functions of controlling and protecting a circuit and electrical equipment, and has important significance for safe operation of the power system. An insulating pull rod is usually arranged in the circuit breaker to realize the connection of the operating mechanism and the moving contact, and the insulating pull rod can insulate and isolate the opening and closing operation of the circuit breaker to protect the safety of operating personnel.
the installation of insulator in the small circuit breaker adopts the mode to hold the through hole department of insulator and weld the insulator mount pad on the circuit breaker casing, leads to the inconvenient problem of small circuit breaker after the problem appears.
Disclosure of Invention
The invention aims to provide miniature circuit breakers, which can solve the problem that the operation space between an insulator and a breaker shell of a -type miniature circuit breaker is limited, and the insulator can only be welded and installed, so that the later maintenance is troublesome.
In order to solve the technical problems, the invention adopts the technical scheme that miniature circuit breakers are characterized by comprising a circuit breaker shell, an insulator and an operation indicating box, wherein the circuit breaker shell is of a cuboid structure and comprises a front end face and a rear end face which are oppositely arranged, a left side face and a right side face which are oppositely arranged, and an upper surface and a lower surface which are oppositely arranged;
a plurality of through holes for accommodating insulators are sequentially arranged on the front end surface of the breaker shell and the rear end surface of the breaker shell along the extending direction of the breaker shell, insulator mounting seats are arranged on the through holes, and the insulator mounting seats are connected with the breaker shell through universal bolt sets; the left side surface and the right side surface of the breaker shell are both provided with breaker supporting seats; an insulator assembling operation hole communicated with an inner cavity of the breaker shell is formed in the breaker supporting seat on the left side surface of the breaker shell; a wire inlet hole is formed in the lower surface of the breaker shell;
the insulator is connected to the breaker shell through the insulator mounting seat; the insulator comprises an umbrella skirt and an insulating pull rod; the insulating pull rod of the insulator penetrates through the insulator mounting seat and the front end surface or the rear end surface of the breaker shell to extend into the breaker shell; the umbrella skirt is wrapped on the outer side of the insulating pull rod, and the bottom end of the umbrella skirt is connected to the insulator mounting seat;
the operation indicating box is arranged on the circuit breaker supporting seat on the right end face of the circuit breaker shell and is communicated with the inner cavity of the circuit breaker shell; and the operating indication box is provided with a switching-on and switching-off pointer.
, lifting lugs are arranged on the ridge lines on the front side and the rear side of the upper surface of the breaker shell.
And , the outer diameter of the shed gradually increases from the bottom end of the shed to the top end of the shed.
, the breaker supporting seat extends along the front end face and the rear end face of the breaker shell, two sides of the breaker supporting seat in the width direction are bent to form a U-shaped structure, and a plurality of bolt mounting clamping grooves are formed in the bent sides.
, a sealing plate is arranged on the insulator assembling operation hole and connected with the breaker supporting seat through a bolt.
, the insulator mounting seat is of a rectangular structure, four sides of the insulator mounting seat are bent towards the same side and buckled on a through hole for accommodating the insulator on the breaker shell, bolt holes are formed in four end corners of the insulator mounting seat, round holes matched with the bolt holes in the insulator mounting seat are formed in the periphery of the through hole for accommodating the insulator on the breaker shell, and the bolt holes in the insulator mounting seat are fixedly connected with the round holes in the periphery of the through hole for accommodating the insulator on the breaker shell through bolts.
The invention has the advantages that:
1) according to the invention, the insulator assembling operation hole is formed in the circuit breaker supporting seat on the left side of the circuit breaker shell, and the insulator mounting seat and the insulator are mounted through the bolt through the insulator assembling operation hole on the side edge when the insulator is mounted on the front end face and the rear end face of the circuit breaker shell through the bolt, so that the insulator mounting seat is prevented from being mounted in a welding mode, and the circuit breaker is convenient to maintain and dismount in the later period.
Drawings
The invention is described in further detail with reference to the figures and the detailed description.
Fig. 1 is a perspective view of kinds of small short-circuiting devices according to the present invention.
Detailed Description
The following examples are presented to enable one of ordinary skill in the art to more fully understand the present invention and are not intended to limit the scope of the embodiments described herein.
kinds of miniature circuit breakers as shown in fig. 1 comprise a breaker shell 1, an insulator 2 and an operation indicating box 3, wherein the breaker shell 1 is of a cuboid structure, and the breaker shell 1 comprises a front end face and a rear end face which are oppositely arranged, a left side face and a right side face which are oppositely arranged, and an upper surface and a lower surface which are oppositely arranged.
A plurality of through holes for accommodating insulators are sequentially arranged on the front end surface of the breaker shell 1 and the rear end surface of the breaker shell 1 along the extending direction of the breaker shell, an insulator mounting seat 11 is arranged on each through hole, and the insulator mounting seats 11 are connected with the breaker shell 1 through universal bolt sets; the left side surface and the right side surface of the breaker shell 1 are both provided with breaker supporting seats 12; an insulator assembling operation hole communicated with the inner cavity of the breaker shell is formed in the breaker supporting seat 12 on the left side surface of the breaker shell 1; a sealing plate 13 is arranged on the insulator assembling operation hole, and the sealing plate is connected with the breaker supporting seat 12 through a bolt; the circuit breaker support base 12 extends along the front and rear end face directions of the circuit breaker case 1; two sides of the breaker supporting seat 12 in the width direction are bent to form a U-shaped structure, and a plurality of bolt mounting clamping grooves 14 are formed in the bent sides; a wire inlet hole is formed in the lower surface of the breaker shell 1; lifting lugs 15 are arranged on the ridge lines on the front side and the rear side of the upper surface of the breaker shell 1.
The insulator 2 is connected to the breaker shell 1 through the insulator mounting seat 11, the insulator 2 comprises an umbrella skirt 21 and an insulating pull rod 22, the insulating pull rod 22 of the insulator 2 penetrates through the insulator mounting seat 11 and the front end face or the rear end face of the breaker shell 1 to extend into the breaker shell 1, the umbrella skirt 21 is wrapped on the outer side of the insulating pull rod 22, the bottom end of the umbrella skirt 21 is connected to the insulator mounting seat 11, the outer diameter of the umbrella skirt 21 is gradually increased from the bottom end of the umbrella skirt 21 to the top end of the umbrella skirt 21, the insulator mounting seat 11 is of a rectangular structure, four side edges of the insulator mounting seat 11 are bent towards the same side and buckled on a through hole for accommodating the insulator in the breaker shell 1, bolt holes are formed in four end corners of the insulator mounting seat 11, round holes matched with the bolt holes in the insulator mounting seat 11 are formed in the periphery of the through hole for accommodating the insulator in the breaker shell 1, and the bolt holes in the periphery of the insulator mounting seat 11 are.
The operation indicating box 3 is arranged on a circuit breaker supporting seat 12 on the right end face of the circuit breaker shell, and the operation indicating box 3 is communicated with the inner cavity of the circuit breaker shell 1; and an opening and closing pointer is arranged on the operation indicating box 3.
The left side surface of the breaker shell is provided with an insulator assembling operation hole, the insulator mounting seat is connected with the breaker shell through a bolt group, during assembling, the insulator assembling operation hole enters the breaker shell to fix the end of a bolt , and the other end of the bolt is screwed down from the breaker shell, so that the assembling structure is convenient for subsequent insulator maintenance and disassembly.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
- The miniature circuit breakers are characterized by comprising a circuit breaker shell, an insulator and an operation indicating box, wherein the circuit breaker shell is of a cuboid structure and comprises a front end face and a rear end face which are oppositely arranged, a left side face and a right side face which are oppositely arranged, and an upper surface and a lower surface which are oppositely arranged;a plurality of through holes for accommodating insulators are sequentially arranged on the front end surface of the breaker shell and the rear end surface of the breaker shell along the extending direction of the breaker shell, insulator mounting seats are arranged on the through holes, and the insulator mounting seats are connected with the breaker shell through universal bolt sets; the left side surface and the right side surface of the breaker shell are both provided with breaker supporting seats; an insulator assembling operation hole communicated with an inner cavity of the breaker shell is formed in the breaker supporting seat on the left side surface of the breaker shell; a wire inlet hole is formed in the lower surface of the breaker shell;the insulator is connected to the breaker shell through the insulator mounting seat; the insulator comprises an umbrella skirt and an insulating pull rod; the insulating pull rod of the insulator penetrates through the insulator mounting seat and the front end surface or the rear end surface of the breaker shell to extend into the breaker shell; the umbrella skirt is wrapped on the outer side of the insulating pull rod, and the bottom end of the umbrella skirt is connected to the insulator mounting seat;the operation indicating box is arranged on the circuit breaker supporting seat on the right end face of the circuit breaker shell and is communicated with the inner cavity of the circuit breaker shell; and the operating indication box is provided with a switching-on and switching-off pointer.
- 2. The kind of miniature circuit breaker of claim 1, wherein the upper surface of the breaker housing has lifting lugs on the front and rear edges.
- 3. The miniature circuit breaker of claim 1, wherein the outer diameter of said shed increases from the bottom end of the shed to the top end of the shed.
- 4. The kinds of miniature circuit breakers of claim 1, wherein the circuit breaker support base extends along the front and rear end faces of the circuit breaker case, both sides of the circuit breaker support base in the width direction are bent to form a U-shaped structure, and the bent sides are provided with a plurality of bolt mounting slots.
- 5. The kinds of miniature circuit breakers of claim 1, wherein a sealing plate is disposed on the insulator mounting hole, and the sealing plate is connected to the breaker support base by bolts.
- 6. The kinds of miniature circuit breakers of claim 1, wherein the insulator mounting seat is rectangular, and four sides of the insulator mounting seat are bent toward the same side and fastened to through holes of the breaker housing for accommodating insulators, bolt holes are formed in four corners of the insulator mounting seat, round holes matched with the bolt holes of the insulator mounting seat are formed in the periphery of the through holes of the breaker housing for accommodating insulators, and the bolt holes of the insulator mounting seat are fixedly connected with the round holes of the breaker housing for accommodating insulators through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911049673.5A CN110739185A (en) | 2019-10-31 | 2019-10-31 | small-sized circuit breakers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911049673.5A CN110739185A (en) | 2019-10-31 | 2019-10-31 | small-sized circuit breakers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110739185A true CN110739185A (en) | 2020-01-31 |
Family
ID=69272050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911049673.5A Pending CN110739185A (en) | 2019-10-31 | 2019-10-31 | small-sized circuit breakers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110739185A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205081390U (en) * | 2015-11-05 | 2016-03-09 | 北海银河开关设备有限公司 | Environmental protection gas -insulated looped netowrk cabinet |
| CN206388638U (en) * | 2016-12-15 | 2017-08-08 | 浙江南腾电气有限公司 | A kind of straight armful, right-angle type band isolated vacuum pole-mounted circuit breaker |
| CN206505864U (en) * | 2017-02-28 | 2017-09-19 | 浙江杨梅电气有限公司 | A kind of self-cleaning outdoor vacuum circuit breaker |
| CN206758374U (en) * | 2017-05-09 | 2017-12-15 | 浙江柳方电器配套有限公司 | A kind of novel side-mounted breaker |
| CN206921739U (en) * | 2017-03-16 | 2018-01-23 | 广东华电建设股份有限公司 | A kind of high-voltage isolating switch device |
| CN207021203U (en) * | 2017-08-02 | 2018-02-16 | 陕西华电电气有限公司 | 10KV side-mounted jacking type high-voltage vacuum circuit breaker |
| CN207474334U (en) * | 2017-11-21 | 2018-06-08 | 成都民达电力设备有限公司 | A kind of isolation circuit breakers for dry air insulation ring main unit |
| CN108847374A (en) * | 2018-08-28 | 2018-11-20 | 李爱根 | A kind of HVAC vacuum circuit breaker |
-
2019
- 2019-10-31 CN CN201911049673.5A patent/CN110739185A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205081390U (en) * | 2015-11-05 | 2016-03-09 | 北海银河开关设备有限公司 | Environmental protection gas -insulated looped netowrk cabinet |
| CN206388638U (en) * | 2016-12-15 | 2017-08-08 | 浙江南腾电气有限公司 | A kind of straight armful, right-angle type band isolated vacuum pole-mounted circuit breaker |
| CN206505864U (en) * | 2017-02-28 | 2017-09-19 | 浙江杨梅电气有限公司 | A kind of self-cleaning outdoor vacuum circuit breaker |
| CN206921739U (en) * | 2017-03-16 | 2018-01-23 | 广东华电建设股份有限公司 | A kind of high-voltage isolating switch device |
| CN206758374U (en) * | 2017-05-09 | 2017-12-15 | 浙江柳方电器配套有限公司 | A kind of novel side-mounted breaker |
| CN207021203U (en) * | 2017-08-02 | 2018-02-16 | 陕西华电电气有限公司 | 10KV side-mounted jacking type high-voltage vacuum circuit breaker |
| CN207474334U (en) * | 2017-11-21 | 2018-06-08 | 成都民达电力设备有限公司 | A kind of isolation circuit breakers for dry air insulation ring main unit |
| CN108847374A (en) * | 2018-08-28 | 2018-11-20 | 李爱根 | A kind of HVAC vacuum circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200131 |