CN112436397B - Intelligent circuit breaker - Google Patents
Intelligent circuit breaker Download PDFInfo
- Publication number
- CN112436397B CN112436397B CN202011347461.8A CN202011347461A CN112436397B CN 112436397 B CN112436397 B CN 112436397B CN 202011347461 A CN202011347461 A CN 202011347461A CN 112436397 B CN112436397 B CN 112436397B
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- CN
- China
- Prior art keywords
- limiting block
- circuit breaker
- contact
- limiting
- rotary column
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- 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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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/32—Mounting of devices therein
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
- H02B1/04—Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Breakers (AREA)
Abstract
The invention provides an intelligent circuit breaker, which comprises a cabinet body for mounting a circuit breaker, wherein the cabinet body is of a frame structure, a connecting plate for being communicated with the circuit breaker is arranged in the cabinet body, contacts are arranged at positions in the circuit breaker, which are in contact with the connecting plate, the contacts are movably mounted on the circuit breaker, a plurality of contacts are arranged, the tail parts of the contacts are mounted with a first limiting block and a second limiting block, and the first limiting block and the second limiting block are used for limiting the elastic force of a spring to shake; according to the invention, the self-locking structures in different directions are arranged on the two sides of the contact, so that the contact cannot greatly shake under the action of the spring, a gap is not generated between the contact and the connecting plate when the contact and the connecting plate are installed, the generation of high-voltage electric arc is avoided, and the safety of equipment and operators in an electric cabinet is effectively protected.
Description
Technical Field
The invention relates to the technical field of electrical cabinets, in particular to an intelligent circuit breaker.
Background
The circuit breaker in the electrical cabinet is an indispensable component, with the continuous development of the technology, the circuit breaker is developed into a vacuum circuit breaker from an initial knife switch form, the vacuum circuit breaker has better protection and can be applied to occasions with higher voltage, so that high-voltage power transformation is realized, generally, a conductive part in the circuit breaker is of a structure with a relatively smaller diameter, generally, the function is 10 mm, meanwhile, in order to increase the stability of the conduction of a contact and a connecting plate, springs for jacking are arranged at the tail parts of the contact, and certain disadvantages exist in the springs, but based on the current technical means, the springs are irreplaceable parts, larger electric arcs can be generated at the moment when the contact is contacted with the connecting plate due to the existence of the springs, so that peripheral parts can be punctured, because the springs generate elastic force when being contacted with the connecting plate, under the existence of the elastic force, when the contact spring is installed with a large impulse, the action of short and quick restoring force of the spring can be caused, if a gap is formed between the contact and the connecting plate, high-voltage electric arcs can be instantly gathered to generate a large electric field, so that peripheral parts are punctured, and serious consequences are caused.
Disclosure of Invention
The present invention aims to provide a smart circuit breaker that overcomes or at least partially solves the above problems to solve the problem of spring sloshing when the circuit breaker is installed.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the invention provides an intelligent circuit breaker which comprises a cabinet body for mounting the circuit breaker, wherein the cabinet body is of a frame structure, a connecting plate for being communicated with the circuit breaker is arranged in the cabinet body, contacts are arranged at positions, in the circuit breaker, in contact with the connecting plate, and are movably mounted on the circuit breaker, a plurality of contacts are arranged, the tail parts of the contacts are mounted with a first limiting block and a second limiting block, and the first limiting block and the second limiting block are used for limiting elastic force of a spring to shake.
As a further scheme of the invention, the contact is installed in a protective body of the circuit breaker, a stepped hole for the movement of the contact is formed in the protective body, the contact is of a cylindrical structure, a limiting seat with the diameter larger than that of the contact is arranged at the tail of the contact, the limiting seat is installed in a large circle of the stepped hole, the contact is installed in a small circle of the stepped hole, and the axial distance between the large circle of the stepped hole is larger than the thickness of the limiting seat.
As a further scheme of the present invention, the other side of the limiting seat is fixedly installed with one end of a spring, the limiting seat 31 is further connected with a power conversion device, and the other end of the spring is fixedly installed with the protection body.
As a further scheme of the invention, an annular groove is arranged on the outer circumference of the limiting seat and is used for being matched with the first limiting block and the second limiting block to be installed, and the width of the annular groove is greater than that of the first limiting block and the second limiting block.
As a further scheme of the invention, the first limiting block and the second limiting block have the same structure and are installed in opposite directions, the cross sections of the first limiting block and the second limiting block are flat and have an arc-shaped structure on one side, wherein the planar structure of the first limiting block is installed in contact with the upper inner plane of the annular groove, and the planar structure of the second limiting block is installed in contact with the lower inner plane of the annular groove.
As a further scheme of the invention, the tail ends of the first limiting block and the second limiting block are respectively provided with a rotary column and a bolt, and the rotary column and the bolt are detachably arranged.
As a further scheme of the invention, the limiting mechanism consisting of the first limiting block, the rotary column and the bolt and the limiting mechanism consisting of the second limiting block, the rotary column and the bolt are installed in a staggered mode.
As a further scheme of the invention, the rotary column is a gear self-locking mechanism, and the rotary column has opposite self-locking directions on the first limiting block and the second limiting block, wherein the rotary column is self-locked anticlockwise on the first limiting block, and the rotary column is self-locked clockwise on the second limiting block.
As a further scheme of the invention, the bolt is connected with a slot on the rotary column cylinder.
As a further scheme of the invention, the depth of the first limiting block and the second limiting block inserted into the ring groove is the same as the arc length of the first limiting block and the second limiting block rotating out of the ring groove.
The invention provides an intelligent circuit breaker, which has the beneficial effects that: the self-locking structure is arranged on the two sides of the contact in different directions, so that the contact cannot shake greatly under the action of the spring, a gap is not generated between the contact and the connecting plate when the contact and the connecting plate are installed, high-voltage electric arcs are avoided, the safety of equipment and operators in an electric cabinet is effectively protected, the first limiting block and the second limiting block can well keep the stability of the linear movement of the contact under the opposite action, and the first limiting block and the second limiting block are detachably installed, so that the structure is realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a schematic diagram of a three-dimensional internal structure according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a simple structure of a limiting block according to an embodiment of the present invention.
In the figure: 1. a cabinet body; 11. a connecting plate; 2. a circuit breaker; 21. a protective body; 3. a contact; 31. a limiting seat; 32. a spring; 33. a ring groove; 4. a first stopper; 5. a second limiting block; 6. turning the column; 7. and (4) a bolt.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Referring to fig. 1 and 2, an intelligent circuit breaker provided in an embodiment of the present invention includes a cabinet 1 for mounting a circuit breaker 2, where the cabinet 1 is of a frame structure, a connection board 11 for connecting with the circuit breaker 2 is disposed inside the cabinet 1, the connection board 11 is usually copper, a contact 3 is disposed in the circuit breaker 2 and in a position contacting with the connection board 11, the contacts 3 are movably mounted on the circuit breaker 2, and a plurality of contacts 3 are respectively connected to a zero line, a live line, and a ground line, and the contacts 3 are used to conduct electricity with the connection board 11 when an electric network is normal, so that the electric quantity of a high-voltage electric network can be transmitted to the electric cabinet, and further complete voltage conversion in the electric cabinet, so that the electric cabinet meets the standard of industrial or civil voltage, and the tail of the contacts 3 limits the shake of the elastic force caused by a spring 32 through the limiting action in the front-back direction of a first limiting block 4 and a second limiting block 5, the amplitude of the shaking is maximum when the contact 3 is in contact with the connecting plate 11, the shaking can cause abnormal movement of serious consequences, electric arcs can easily break through the connecting plate 11, damage of an electric cabinet is caused, and casualties are further caused, so that the first limiting block 4 and the second limiting block 5 can well limit the bidirectional movement of the contact 3, and the safety performance of live-line operation is protected.
Preferably, the contact 3 is installed in the protection body 21 of the circuit breaker 2, a stepped hole for the movement of the contact 3 is formed in the protection body 21, the contact 3 is of a cylindrical structure, the tail portion of the contact 3 is provided with a limiting seat 31 of which the diameter is larger than that of the contact 3, the limiting seat 31 is installed in a large circle of the stepped hole, the contact 3 is installed in a small circle of the stepped hole, the axial distance between the large circle of the stepped hole is larger than the thickness of the limiting seat 31, the size difference can enable the contact 3 to have a moving space, therefore, the contact 3 can be in full contact with the connecting plate 11, and the risk that the electric arc is increased instantly due to the gap is avoided.
Preferably, the other side of the limiting seat 31 is fixedly installed with one end of the spring 32, the limiting seat 31 is further connected with a power conversion device, so that the transmitted power is reduced in voltage through the power conversion device, the other end of the spring 32 is fixedly installed with the protection body 21, so that the contact 3 has certain elasticity, a partial elastic space can be obtained during installation, and the installation difficulty is further reduced.
Preferably, an annular groove 33 is formed in the outer circumference of the limiting seat 31, the annular groove 33 is used for being matched with the first limiting block 4 and the second limiting block 5 to be installed, the width of the annular groove 33 is larger than the width of the first limiting block 4 and the width of the second limiting block 5, and a relative distance is defined through the position relation between the annular groove 33 and the first limiting block 4 and the position relation between the annular groove 33 and the second limiting block 5.
Preferably, the first limiting block 4 and the second limiting block 5 have the same structure and opposite installation directions, the cross sections of the first limiting block 4 and the second limiting block 5 are of a structure with one flat side and the other side being arc-shaped, wherein the planar structure of the first limiting block 4 is installed in a plane contact manner with the upper portion of the annular groove 33, the planar structure of the second limiting block 5 is installed in a plane contact manner with the lower portion of the annular groove 33, the first limiting block 4 limits downward movement of the contact 3, and the second limiting block 5 limits upward movement of the contact 3, so that the contact 3 is prevented from shaking under the action of the spring 32.
Preferably, the tail ends of the first limiting block 4 and the second limiting block 5 are respectively provided with a rotary column 6 and a bolt 7, the rotary column 6 and the bolt 7 are detachably mounted, and a limiting mechanism formed by the first limiting block 4, the rotary column 6 and the bolt 7 and a limiting mechanism formed by the second limiting block 5, the rotary column 6 and the bolt 7 are mounted in a staggered mode, so that the contact 3 can complete limiting in a certain distance.
Preferably, the rotary column 6 is a gear self-locking mechanism, the rotary column 6 is provided with opposite self-locking directions on the first limiting block 4 and the second limiting block 5, the rotary column 6 is self-locked anticlockwise on the first limiting block 4, the rotary column 6 is self-locked clockwise on the second limiting block 5, the self-locking of the rotary column 6 is realized through the structure of the bolt 7, and the rotary column 6 can move freely without installing the bolt 7, so that the contact 3 is convenient to install and disassemble.
Preferably, the bolt 7 is connected with a slot on a column of the rotary column 6, when the bolt 7 is installed on the rotary column 6, the rotary column 6 only rotates in a reverse direction, the rotation in the other direction is limited, and the detachable structure of the bolt 7 facilitates the installation and the use of the whole circuit breaker 2.
Preferably, the depth of the first limiting block 4 and the second limiting block 5 inserted into the annular groove 33 is the same as the arc length of the annular groove 33 rotated out, so that the first limiting block 4 and the second limiting block 5 can be separated from the annular groove 33, and the installation and the disassembly are convenient.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (6)
1. The intelligent circuit breaker comprises a cabinet body (1) for mounting a circuit breaker (2), wherein the cabinet body (1) is of a frame structure, and a connecting plate (11) which is communicated with the circuit breaker (2) is arranged inside the cabinet body (1), and is characterized in that the position, in the circuit breaker (2), contacting with the connecting plate (11) is a contact (3), the contacts (3) are movably mounted on the circuit breaker (2), the contacts (3) are multiple, the tail parts of the contacts (3) are mounted with a first limiting block (4) and a second limiting block (5), and the first limiting block (4) and the second limiting block (5) are used for limiting the elastic force of a spring (32) to swing;
The contact (3) is installed in a protection body (21) of the circuit breaker (2), a stepped hole used for movement of the contact (3) is formed in the protection body (21), the contact (3) is of a cylindrical structure, a limiting seat (31) with the diameter larger than that of the contact (3) is arranged at the tail of the contact (3), the limiting seat (31) is installed in a large circle of the stepped hole, the contact (3) is installed in a small circle of the stepped hole, and the axial distance between the large circle of the stepped hole is larger than the thickness of the limiting seat (31);
the other side of the limiting seat (31) is fixedly installed with one end of a spring (32), the limiting seat (31) is further connected with a power conversion device, and the other end of the spring (32) is fixedly installed with the protective body (21);
an annular groove (33) is formed in the outer circumference of the limiting seat (31), the annular groove (33) is used for being matched with the first limiting block (4) and the second limiting block (5) to be installed, and the width of the annular groove (33) is larger than the width of the first limiting block (4) and the width of the second limiting block (5);
the first limiting block (4) and the second limiting block (5) are identical in structure and opposite in installation direction, the cross sections of the first limiting block (4) and the second limiting block (5) are of arc-shaped structures, wherein the plane structures of the first limiting block (4) and the upper portion of the annular groove (33) are installed in a plane contact mode, and the plane structures of the second limiting block (5) and the lower portion of the annular groove (33) are installed in a plane contact mode.
2. The intelligent circuit breaker according to claim 1, wherein the tail ends of the first limiting block (4) and the second limiting block (5) are respectively provided with a rotary column (6) and a bolt (7), and the rotary column (6) and the bolt (7) are detachably mounted.
3. The intelligent circuit breaker according to claim 2, wherein the limiting mechanism composed of the first limiting block (4) and the rotary column (6) and the bolt (7) and the limiting mechanism composed of the second limiting block (5) and the rotary column (6) and the bolt (7) are installed in a staggered manner.
4. The intelligent circuit breaker according to claim 3, wherein the rotary column (6) is a gear self-locking mechanism, the rotary column (6) has opposite self-locking directions on the first limiting block (4) and the second limiting block (5), wherein the rotary column (6) is self-locked counterclockwise on the first limiting block (4), and the rotary column (6) is self-locked clockwise on the second limiting block (5).
5. The intelligent circuit breaker according to claim 4, characterized in that the latch (7) is connected to a slot on the cylinder of the rotary column (6).
6. The intelligent circuit breaker according to claim 5, characterized in that the depth of the first stopper (4) and the second stopper (5) inserted into the ring groove (33) is the same as the arc length of the ring groove (33) from which they rotate out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011347461.8A CN112436397B (en) | 2020-11-26 | 2020-11-26 | Intelligent circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011347461.8A CN112436397B (en) | 2020-11-26 | 2020-11-26 | Intelligent circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112436397A CN112436397A (en) | 2021-03-02 |
| CN112436397B true CN112436397B (en) | 2022-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011347461.8A Active CN112436397B (en) | 2020-11-26 | 2020-11-26 | Intelligent circuit breaker |
Country Status (1)
| Country | Link |
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| CN (1) | CN112436397B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09161639A (en) * | 1995-12-07 | 1997-06-20 | Fuji Electric Co Ltd | Moving contact mechanism of electromagnetic contactor |
| GB2517972A (en) * | 2013-09-06 | 2015-03-11 | Eaton Ind Netherlands Bv | Circuit breaker |
| CN105977094A (en) * | 2016-07-14 | 2016-09-28 | 许继集团有限公司 | Bounce-free plug-in type vacuum arc-extinguishing chamber |
| CN106252175A (en) * | 2016-08-18 | 2016-12-21 | 常州博瑞电力自动化设备有限公司 | Fast mechanical switch combined floodgate bounce-proof mechanism |
| CN106449265A (en) * | 2016-11-14 | 2017-02-22 | 国家电网公司 | Vacuum circuit breaker |
| CN107275147A (en) * | 2017-07-31 | 2017-10-20 | 安徽天电气技术股份有限公司 | Breaker bounce-proof device |
| CN206639741U (en) * | 2017-02-22 | 2017-11-14 | 西安前进电器实业有限公司 | A kind of vacuum circuit breaker speed-sensitive switch |
| CN207558638U (en) * | 2017-12-04 | 2018-06-29 | 国网河南省电力公司新乡供电公司 | A kind of breaker and brake separating buffer device |
| CN210722911U (en) * | 2019-09-29 | 2020-06-09 | 湖北明泽源科技有限公司 | Fixing device of contact linkage plate of loop metering circuit breaker |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204375641U (en) * | 2015-02-05 | 2015-06-03 | 浙江安光电气科技有限公司 | Vacuum interrupter |
| CN108493041B (en) * | 2018-02-08 | 2019-10-01 | 北京双杰电气股份有限公司 | A kind of unidirectional gas damping buffering insulated pull rod |
| CN110112031B (en) * | 2019-04-23 | 2020-09-08 | 陕西捷通智能控制软件有限公司 | Intelligent vacuum circuit breaker |
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2020
- 2020-11-26 CN CN202011347461.8A patent/CN112436397B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09161639A (en) * | 1995-12-07 | 1997-06-20 | Fuji Electric Co Ltd | Moving contact mechanism of electromagnetic contactor |
| GB2517972A (en) * | 2013-09-06 | 2015-03-11 | Eaton Ind Netherlands Bv | Circuit breaker |
| CN105977094A (en) * | 2016-07-14 | 2016-09-28 | 许继集团有限公司 | Bounce-free plug-in type vacuum arc-extinguishing chamber |
| CN106252175A (en) * | 2016-08-18 | 2016-12-21 | 常州博瑞电力自动化设备有限公司 | Fast mechanical switch combined floodgate bounce-proof mechanism |
| CN106449265A (en) * | 2016-11-14 | 2017-02-22 | 国家电网公司 | Vacuum circuit breaker |
| CN206639741U (en) * | 2017-02-22 | 2017-11-14 | 西安前进电器实业有限公司 | A kind of vacuum circuit breaker speed-sensitive switch |
| CN107275147A (en) * | 2017-07-31 | 2017-10-20 | 安徽天电气技术股份有限公司 | Breaker bounce-proof device |
| CN207558638U (en) * | 2017-12-04 | 2018-06-29 | 国网河南省电力公司新乡供电公司 | A kind of breaker and brake separating buffer device |
| CN210722911U (en) * | 2019-09-29 | 2020-06-09 | 湖北明泽源科技有限公司 | Fixing device of contact linkage plate of loop metering circuit breaker |
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| Publication number | Publication date |
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| CN112436397A (en) | 2021-03-02 |
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