CN112863951B - Electrical engineering distribution circuit breaker - Google Patents
Electrical engineering distribution circuit breaker Download PDFInfo
- Publication number
- CN112863951B CN112863951B CN202110008149.4A CN202110008149A CN112863951B CN 112863951 B CN112863951 B CN 112863951B CN 202110008149 A CN202110008149 A CN 202110008149A CN 112863951 B CN112863951 B CN 112863951B
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- China
- Prior art keywords
- circuit breaker
- metal frame
- electrical engineering
- shell
- side wall
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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
- H01H71/08—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
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Abstract
The invention discloses an electrical engineering distribution circuit breaker, which belongs to the technical field of circuit breakers and comprises a hollow shell, wherein a mechanical locking handle device, a rapid arc extinguishing device, a short-circuit protection electromagnetic trip, a lever device and an overload protection metal sheet device are sequentially arranged in the shell, an installation opening corresponding to the mechanical locking handle device is formed in the shell, metal frames are fixedly connected to the inner side walls of the two sides of the shell, wire inlet holes corresponding to the metal frames are formed in the outer side wall of the shell, and lower pressing sheets and supporting blocks are slidably connected to the inner side walls of the metal frames. According to the invention, the lower pressing sheet arranged in an arc shape is matched with the supporting block provided with the groove at the top, so that the copper conductor can be fixed on the circuit breaker, the contact area between the metal lower pressing sheet and the copper conductor is increased, the occurrence of poor contact is avoided, and in addition, the situation that the copper conductor is stressed to rotate on the circuit breaker to fall off can be prevented.
Description
Technical Field
The invention relates to the technical field of circuit breakers, in particular to an electrical engineering distribution circuit breaker.
Background
The circuit breaker refers to 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-low voltage boundary line is divided more vaguely, and the circuit breakers above 3kV are generally called high-voltage electric appliances.
The circuit breaker can be used for distributing electric energy, starting an asynchronous motor infrequently, protecting a power supply circuit, the motor and the like, and automatically cutting off a circuit when faults such as serious overload, short circuit, undervoltage and the like occur, and the function of the circuit breaker is equivalent to the combination of a fuse type switch, an over-under-heat relay and the like. Furthermore, there is generally no need to change the components after breaking the fault current. At present, it has been widely used.
At present drive two metal preforming through the bolt on the rotation circuit breaker usually and compress tightly and fix copper conductor (single copper conductor) at the inlet wire end or the leading-out terminal of circuit breaker, because the metal preforming on the circuit breaker is the horizontally sheetmetal now, and the copper conductor is circular usually, utilize two unable stable fixing the copper conductor centre gripping of metal preforming on the circuit breaker, the copper conductor atress very easily takes place to rock about, drops from the circuit breaker even, causes the emergence of incident.
To this end, we propose an electrical engineering distribution circuit breaker to solve the above problems.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides an electrical engineering distribution circuit breaker.
In order to achieve the purpose, the invention adopts the following technical scheme:
an electrical engineering distribution circuit breaker comprises a hollow shell, wherein a mechanical locking handle device, a rapid arc extinguishing device, a short-circuit protection electromagnetic trip, a lever device and an overload protection metal sheet device are sequentially arranged in the shell, an installation opening corresponding to the mechanical locking handle device is formed in the shell, metal frames are fixedly connected to inner side walls of two sides of the shell, wire inlet holes corresponding to the metal frames are formed in the outer side wall of the shell, a lower pressing sheet and a supporting block are connected to the inner side wall of each metal frame in a sliding mode, the lower pressing sheet is respectively and electrically connected with the short-circuit protection electromagnetic trip and the rapid arc extinguishing device through metal connecting sheets, a plurality of grooves which are arranged in an inverted trapezoid shape are formed in the top of the supporting block, the lower pressing sheet is connected with the metal frames through an adjusting mechanism and is in contact with the metal frames, a bolt a is rotatably connected to the shell, and one end of the bolt a penetrates through the shell and is sleeved with a sleeve through threads, the top of the sleeve is connected with a lifting rod through a linkage mechanism, and the top of the lifting rod penetrates through the metal frame and is connected with the bottom of the supporting block through a fixing block c.
Preferably, the adjusting mechanism comprises a bolt b in threaded connection with the top of the metal frame, a through hole corresponding to the bolt b is formed in the shell, the bottom of the bolt b penetrates through the metal frame and is fixedly connected with a fixing block b, and the bottom of the fixing block b is in contact with the top of the lower pressing sheet.
Preferably, the lower pressing sheet is arranged in an arc shape.
Preferably, one end of the bolt a is connected with the inner side wall of the housing through a fixing block a.
Preferably, the linkage mechanism comprises a connecting rod, and two ends of the connecting rod are respectively connected with the top of the sleeve and the bottom of the lifting rod through rotating pieces.
Preferably, the outer side wall of the lifting rod is sleeved with a fixed cylinder in a sliding manner, and the fixed cylinder is fixedly connected to the inner side wall of the shell.
Preferably, both ends of the lower pressing piece are connected with the inner side wall of the metal frame through a sliding block a, and a sliding groove corresponding to the sliding block a is formed in the inner side wall of the metal frame.
Preferably, both ends of the supporting block are connected with the inner side wall of the metal frame through the sliding block b, and the metal frame is provided with a movable opening corresponding to the sliding block b.
Preferably, a spring snap means is mounted to the bottom of the housing.
The technical scheme provided by the embodiment of the invention can have the following beneficial effects:
1. compared with the prior art, the lower pressing sheet arranged in an arc shape is matched with the supporting block provided with the groove at the top, so that the copper conductor can be fixed on the circuit breaker, the contact area between the metal lower pressing sheet and the copper conductor is increased, the occurrence of poor contact is avoided, and the situation that the copper conductor rotates and falls off under the stress on the circuit breaker can be prevented;
2. compared with the prior art, the lifting rod has the advantages that the sleeve is driven to move left and right on the outer side wall of the bolt a by rotating the bolt a, the inclination angle of the connecting rod is adjusted by adjusting the position of the sleeve, the top position of the lifting rod is adjusted, and the function of adjusting the position of the supporting block is realized, so that copper wires with different thicknesses can be clamped conveniently.
Drawings
Fig. 1 is a schematic structural diagram of an electrical engineering distribution circuit breaker according to the present invention;
fig. 2 is a schematic diagram of an internal structure of an electrical engineering distribution circuit breaker according to the present invention;
fig. 3 is a schematic view of a connection structure of a metal frame, a bolt a, a lower pressing plate, a supporting block, a sliding block a, a sliding block b, a lifting rod, a fixing block b and a fixing block c in the electrical engineering distribution circuit breaker.
In the figure: 1. a housing; 2. a mechanical locking handle arrangement; 3. a rapid arc extinguishing device; 4. a spring snap device; 5. short-circuit protection electromagnetic release; 6. a lever device; 7. an overload protection sheet metal device; 8. a metal frame; 9. a bolt a; 10. a sleeve; 11. a fixed block a; 12. a connecting rod; 13. a fixed cylinder; 14. a lifting rod; 15. a bolt b; 16. a fixed block b; 17. pressing the mixture downwards; 18. a slide block a; 19. a slide block b; 20. a support block; 21. and a fixed block c.
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.
Referring to fig. 1-3, an electrical engineering distribution circuit breaker comprises a hollow casing 1, a mechanical locking handle device 2, a rapid arc extinguishing device 3, a short-circuit protection electromagnetic trip 5, a lever device 6 and an overload protection metal sheet device 7 are sequentially arranged in the casing 1, a mounting opening corresponding to the mechanical locking handle device 2 is arranged on the casing 1, metal frames 8 are fixedly connected to the inner side walls of the two sides of the casing 1, a wire inlet hole corresponding to the metal frame 8 is arranged on the outer side wall of the casing 1, a lower pressing sheet 17 and a supporting block 20 are slidably connected to the inner side wall of the metal frame 8, the lower pressing sheet 17 is electrically connected with the short-circuit protection electromagnetic trip 5 and the rapid arc extinguishing device 3 through metal connecting sheets, a plurality of grooves in inverted trapezoid are arranged at the top of the supporting block 20, the lower pressing sheet 17 is connected with the metal frames 8 through an adjusting mechanism, the shell 1 is rotatably connected with a bolt a9, one end of the bolt a9 penetrates through the shell 1 and is in threaded sleeve connection with the sleeve 10, the top of the sleeve 10 is connected with a lifting rod 14 through a linkage mechanism, and the top of the lifting rod 14 penetrates through the metal frame 8 and is connected with the bottom of the supporting block 20 through a fixing block c 21.
The mechanical locking handle device 2, the rapid arc extinguishing device 3, the short-circuit protection electromagnetic trip 5, the lever device 6 and the overload protection metal sheet device 7 are all in the prior art, and the matching relationship therebetween is also in the prior art, and will not be described in detail herein.
Wherein, the lower holding down piece 17 and the top that set up through the arc are provided with notched supporting shoe 20 cooperation, can fix the copper conductor on the circuit breaker, have increased the area of contact of metal holding down piece 17 with the copper conductor, avoid contact failure's the condition to take place, in addition, can also prevent that the copper conductor atress from rotating the condition that drops on the circuit breaker and taking place.
The lower pressing piece 17 is an arc-shaped metal piece having a certain elasticity.
A plurality of recess equidistance that are the trapezoidal setting of falling set up, the purpose is used for fixing copper conductor in every recess to preforming 17 and supporting shoe 20 cooperation down, fix copper conductor on the circuit breaker.
The bolt b15 is used for pressing the metal lower pressing sheet 17 downwards, so that the lower pressing sheet 17 is pressed on the top of the supporting block 20, and the copper wire is fixed.
More specifically, the adjusting mechanism comprises a bolt b15 screwed on the top of the metal frame 8, the housing 1 is provided with a through hole corresponding to the bolt b15, the bottom of the bolt b15 penetrates through the metal frame 8 and is fixedly connected with a fixed block b16, and the bottom of the fixed block b16 is in contact with the top of the lower pressing plate 17.
More specifically, the lower pressing piece 17 is provided in an arc shape.
More specifically, one end of the bolt a9 is connected to the inner sidewall of the case 1 through the fixing block a 11.
The purpose of connecting one end of bolt a9 with casing 1 through fixed block a11 is to support one end of bolt a9, avoids bolt a9 to rock.
More specifically, the linkage mechanism includes a connecting rod 12, and both ends of the connecting rod 12 are connected to the top of the sleeve 10 and the bottom of the lifting rod 14 through rotating members, respectively.
The sleeve 10 is driven to move left and right on the outer side wall of the bolt a9 by rotating the bolt a9, the inclination angle of the connecting rod 12 is adjusted by adjusting the position of the sleeve 10, the top position of the lifting rod 14 is adjusted, and the function of adjusting the position of the supporting block 20 is realized, so that copper wires with different thicknesses can be clamped conveniently. Therefore, the movement range of the lower pressing plate 17 is limited, so that the distance between the lower pressing plate 17 and the supporting block 20 in the movement range can be adjusted by adjusting the position of the supporting block 20, and copper wires with different thicknesses can be conveniently clamped.
More specifically, the outer side wall of the lifting rod 14 is slidably sleeved with a fixed cylinder 13, and the fixed cylinder 13 is fixedly connected to the inner side wall of the housing 1.
The fixed cylinder 13 functions to limit the moving direction of the lifting rod 14 so that the lifting rod 14 can adjust the position of the supporting block 20.
More specifically, both ends of the lower pressing plate 17 are connected to the inner side wall of the metal frame 8 through the slider a18, and the inner side wall of the metal frame 8 is provided with a sliding groove corresponding to the slider a 18. It is convenient to limit the moving trace of the lower pressing piece 17.
More specifically, both ends of the supporting block 20 are connected to the inner side wall of the metal frame 8 through the slider b19, and the metal frame 8 is provided with a movable opening corresponding to the slider b 19. The slider b19 functions to restrict the movement locus of the support block 20.
More specifically, the bottom of the housing 1 is mounted with a spring snap device 4. The spring catch 4 serves to facilitate the fixing of the circuit breaker to the cradle.
In the invention, when a copper conductor needs to be fixed on a circuit breaker, firstly, the distance between a lower pressing piece 17 and a supporting block 20 is adjusted, the copper conductor is placed in a groove on the supporting block 20, then a bolt b15 is rotated to drive a fixing piece b16 to descend, a fixing piece b16 descends to press the lower pressing piece 17 to descend, the copper conductor can be fixed on the circuit breaker by matching the lower pressing piece 17 arranged in an arc shape with the supporting block 20 provided with the groove at the top, the contact area between the metal lower pressing piece 17 and the copper conductor is increased, the occurrence of poor contact is avoided, in addition, the situation that the copper conductor is stressed on the circuit breaker to rotate and fall off can be prevented, if the wire diameter of the copper conductor is thin, a bolt a9 can be rotated to adjust a sleeve 10 to move on a bolt a9, the inclination angle of a connecting rod 12 is adjusted, when the inclination angle between the connecting rod 12 and a bolt a9 is increased, the top position of a lifting rod 14 is lifted to drive the position of a fixing piece c21 to ascend, the rising position of the fixed block c21 drives the rising position of the supporting block 20 to facilitate the height adjustment of the supporting block 20, so as to clamp copper wires with different thicknesses.
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 as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (9)
1. An electrical engineering distribution circuit breaker comprises a hollow shell (1), wherein a mechanical locking handle device (2), a rapid arc extinguishing device (3), a short-circuit protection electromagnetic trip (5), a lever device (6) and an overload protection metal sheet device (7) are sequentially arranged in the shell (1), and the shell (1) is provided with a mounting opening corresponding to the mechanical locking handle device (2), and is characterized in that the inner side walls of two sides of the shell (1) are fixedly connected with a metal frame (8), the outer side wall of the shell (1) is provided with a wire inlet hole corresponding to the metal frame (8), the inner side wall of the metal frame (8) is slidably connected with a lower pressing sheet (17) and a supporting block (20), the lower pressing sheet (17) is respectively and electrically connected with the short-circuit protection electromagnetic trip (5) and the rapid arc extinguishing device (3) through metal connecting sheets, the top of supporting shoe (20) is provided with a plurality of recesses that are the trapezoidal setting of falling, preforming (17) are connected through adjustment mechanism down and are contacted with metal frame (8), it is connected with bolt a (9) to rotate on casing (1), the one end of bolt a (9) is run through casing (1) and screw thread cover has been cup jointed sleeve (10), the top of sleeve (10) is connected with lifter (14) through the link gear, the top of lifter (14) is run through metal frame (8) and is connected with the bottom of supporting shoe (20) through fixed block c (21).
2. The electrical engineering distribution circuit breaker according to claim 1, wherein the adjusting mechanism comprises a bolt b (15) screwed on the top of the metal frame (8), the housing (1) is provided with a through hole corresponding to the bolt b (15), the bottom of the bolt b (15) penetrates through the metal frame (8) and is fixedly connected with a fixed block b (16), and the bottom of the fixed block b (16) is in contact with the top of the lower pressing plate (17).
3. Electrical engineering distribution circuit breaker according to claim 1, characterized in that said lower blade (17) is arranged in an arc.
4. An electrical engineering distribution circuit breaker according to claim 1, characterized in that one end of the bolt a (9) is connected with the inner side wall of the housing (1) through a fixing block a (11).
5. Electrical engineering distribution circuit breaker according to claim 1, characterized in that the linkage comprises a connecting rod (12), the two ends of the connecting rod (12) being connected to the top of the bushing (10) and to the bottom of the lifting rod (14) respectively by means of a rotary piece.
6. Electrical engineering distribution circuit breaker according to claim 1, characterized in that the outer side wall of the lifting rod (14) is slidably sleeved with a fixed cylinder (13), and the fixed cylinder (13) is fixedly connected to the inner side wall of the housing (1).
7. The electrical engineering distribution circuit breaker according to claim 1, wherein both ends of the lower pressing piece (17) are connected with the inner side wall of the metal frame (8) through a sliding block a (18), and the inner side wall of the metal frame (8) is provided with a sliding groove corresponding to the sliding block a (18).
8. The electrical engineering distribution circuit breaker according to claim 1, wherein both ends of the supporting block (20) are connected to the inner side wall of the metal frame (8) through a sliding block b (19), and the metal frame (8) is provided with a movable opening corresponding to the sliding block b (19).
9. Electrical engineering distribution circuit breaker according to claim 1, characterized in that the bottom of the housing (1) is fitted with a spring snap device (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110008149.4A CN112863951B (en) | 2021-01-05 | 2021-01-05 | Electrical engineering distribution circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110008149.4A CN112863951B (en) | 2021-01-05 | 2021-01-05 | Electrical engineering distribution circuit breaker |
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| Publication Number | Publication Date |
|---|---|
| CN112863951A CN112863951A (en) | 2021-05-28 |
| CN112863951B true CN112863951B (en) | 2022-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110008149.4A Active CN112863951B (en) | 2021-01-05 | 2021-01-05 | Electrical engineering distribution circuit breaker |
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| CN (1) | CN112863951B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114566408B (en) * | 2022-03-14 | 2023-09-01 | 杭州电力设备制造有限公司 | Safety circuit breaker |
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| JPH1154017A (en) * | 1997-08-04 | 1999-02-26 | Nitto Kogyo Co Ltd | Wiring circuit breaker |
| CN201167071Y (en) * | 2008-03-10 | 2008-12-17 | 浙江天正电气股份有限公司 | Small circuit breaker with multifunctional connecting terminals |
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| CN210897157U (en) * | 2019-11-21 | 2020-06-30 | 温州隆威电气有限公司 | Plastic case circuit breaker easy to wire |
| CN211828656U (en) * | 2020-04-07 | 2020-10-30 | 刘晓飞 | Wiring frame of miniature circuit breaker for increasing wiring stability |
| CN111952124A (en) * | 2020-07-31 | 2020-11-17 | 苗竹 | High-temperature breaker for high-voltage power transmission |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102243954A (en) * | 2010-05-12 | 2011-11-16 | Abb股份公司 | Installation switching device |
| CN202816824U (en) * | 2012-09-25 | 2013-03-20 | 上海诺雅克电气有限公司 | Circuit breaker |
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2021
- 2021-01-05 CN CN202110008149.4A patent/CN112863951B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1154017A (en) * | 1997-08-04 | 1999-02-26 | Nitto Kogyo Co Ltd | Wiring circuit breaker |
| CN201167071Y (en) * | 2008-03-10 | 2008-12-17 | 浙江天正电气股份有限公司 | Small circuit breaker with multifunctional connecting terminals |
| CN103177909A (en) * | 2011-12-26 | 2013-06-26 | 西门子公司 | Wiring device |
| CN202816822U (en) * | 2012-09-06 | 2013-03-20 | 北京博顿电气有限公司 | Structure for preventing screw from falling off |
| CN206685330U (en) * | 2017-04-26 | 2017-11-28 | 科润电力科技股份有限公司 | A kind of demarcation circuit breaker being easily installed on utility poles |
| CN206532745U (en) * | 2017-07-04 | 2017-09-29 | 李国帅 | A kind of Shell of circuit breaker structure |
| CN207818492U (en) * | 2018-03-07 | 2018-09-04 | 浙江集云五金科技有限公司 | A kind of binding post |
| CN208690191U (en) * | 2018-10-08 | 2019-04-02 | 嘉兴市加控电气设备制造有限公司 | Miniature circuit breaker |
| CN110491739A (en) * | 2019-09-23 | 2019-11-22 | 浙江永继电气有限公司 | A kind of miniature circuit breaker of the unilateral busbar connector connection jaws of band |
| CN210897157U (en) * | 2019-11-21 | 2020-06-30 | 温州隆威电气有限公司 | Plastic case circuit breaker easy to wire |
| CN211828656U (en) * | 2020-04-07 | 2020-10-30 | 刘晓飞 | Wiring frame of miniature circuit breaker for increasing wiring stability |
| CN111952124A (en) * | 2020-07-31 | 2020-11-17 | 苗竹 | High-temperature breaker for high-voltage power transmission |
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| CN112863951A (en) | 2021-05-28 |
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