CN114023605B - N utmost point structure and external circuit breaker of compact electric energy meter - Google Patents
N utmost point structure and external circuit breaker of compact electric energy meter Download PDFInfo
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- CN114023605B CN114023605B CN202111296819.3A CN202111296819A CN114023605B CN 114023605 B CN114023605 B CN 114023605B CN 202111296819 A CN202111296819 A CN 202111296819A CN 114023605 B CN114023605 B CN 114023605B
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- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 230000008676 import Effects 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000003068 static effect Effects 0.000 abstract description 9
- 238000004880 explosion Methods 0.000 description 10
- 238000005253 cladding Methods 0.000 description 6
- 238000002955 isolation Methods 0.000 description 4
- 238000010030 laminating Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The invention discloses an N-pole structure and an external circuit breaker of a compact electric energy meter, which comprises a cover plate matched with a middle shell to form an N-pole cavity, wherein the edge of the cover plate, which is not in contact with the side wall of the middle shell, is provided with side walls extending towards the middle shell, the cover plate is jointed with the middle shell through the side walls to form a closed N-pole cavity, and an N-pole moving contact, an N-pole static contact, a contact operating mechanism and an arc extinguishing chamber are arranged in the N-pole cavity. Utilize the limit wall that the apron border set up for the apron constitutes with middle casing N utmost point cavity, and its piece is close to middle casing setting, and then makes the creepage distance between N utmost point break-make structure and the electric operating mechanism that is in inside longer, makes whole circuit breaker more reliable.
Description
Technical Field
The invention particularly relates to an external breaker of an N-pole structure and a compact electric energy meter.
Background
An electric operating mechanism is generally required to be arranged in an external circuit breaker of the electric energy meter, so that remote control is realized, the existing electric operating mechanism occupies a module, the circuit breaker is large in size, particularly the circuit breaker with the N pole, the N pole and the electric operating mechanism occupy a module space, and space waste is serious.
In order to save space, manufacturers push out to arrange an N pole and an electric operating mechanism in a module space, and the N pole and the electric operating mechanism are separated by using a partition board, but because the N pole and the electric operating mechanism are formed by extending a side wall matched with the partition board on a shell, a gap between the partition board and the shell is close to the electric operating mechanism, so that the creepage distance is insufficient.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an N-pole on-off structure and an external circuit breaker of a compact electric energy meter.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The utility model provides an N utmost point structure, its includes the apron that forms N utmost point cavity with middle casing cooperation, the border that the apron was not contacted with the lateral wall of middle casing all is equipped with the limit wall that extends towards middle casing, the apron forms confined N utmost point cavity through limit wall and middle casing laminating, be equipped with N utmost point moving contact, N utmost point stationary contact and contact operating device in the N utmost point cavity.
The apron is including being used for the cladding to extend to the first space of the wiring board of N utmost point static contact department by N utmost point play line terminal department, be used for the cladding N utmost point moving contact's second space and be used for holding contact operating device's third space, and three space intercommunication sets up, and each space all is equipped with the limit wall with the one end of middle casing's lateral wall contact.
The cover plate is internally provided with a fourth space for coating the N-pole arc extinguishing chamber, the fourth space is positioned below the second space and is communicated with the first space, and one end, which is not in contact with the side wall of the middle shell, of the edge of the fourth space is provided with side walls.
The third space, the second space and the fourth space are arranged in a step shape.
The upper and lower both sides in first space are equipped with the limit wall, and the one end of two limit walls is connected with the limit wall in third space and fourth space respectively, and the other end forms the first import that is used for the wiring board to get into.
The first inlet comprises a first covering part, the first covering part is higher than the surface of the adjacent cover plate, and a first baffle is arranged between the lower edge of the first covering part and the side wall.
One side of apron is equipped with the second and covers the portion, its the second covers the surface setting that the portion is higher than adjacent apron, just be equipped with the second baffle between the upper edge and the limit wall of second cover the portion, second covers the second and covers the second baffle and the second import that the terminal board that is used for N utmost point incoming line terminal gets into the N utmost point cavity of the chamber wall formation of the inlet wire terminal installation cavity of middle casing.
The border of fourth space both sides all is equipped with the limit wall, just the lower border in fourth space sets up with the lateral wall contact of middle casing, and is equipped with the strengthening rib between two limit walls.
The middle shell is provided with a wall matched with the side wall of the fourth space, and when the cover plate covers the middle shell, the wall and the side wall of the fourth space are arranged in a staggered mode.
The utility model provides an adopt above-mentioned external circuit breaker of compact electric energy meter of N utmost point structure, its includes the casing that comprises middle casing and the side cap of both sides, the both sides of middle casing form respectively and are used for holding the first cavity of L utmost point break-make structure and are used for holding the second cavity of N utmost point structure and electric operating structure, be equipped with the apron that forms N utmost point cavity with middle casing cooperation in the second cavity, the border that the apron was not contacted with the lateral wall of middle casing all is equipped with the limit wall that extends towards middle casing, the apron passes through limit wall and middle casing laminating and forms confined N utmost point cavity, be equipped with N utmost point moving contact, N utmost point static contact and contact operating mechanism in the N utmost point cavity.
The invention has the beneficial effects that: utilize the limit wall that the apron border set up for the apron constitutes with middle casing N utmost point cavity, and its piece is close to middle casing setting, and then makes the creepage distance between N utmost point break-make structure and the electric operating mechanism that is in inside longer, makes whole circuit breaker more reliable.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of the present invention (omitting the electric actuator).
Fig. 3 is an enlarged schematic view at a in fig. 2.
Fig. 4 is an enlarged schematic view at B in fig. 2.
Fig. 5 is a schematic view of the structure in the N-pole chamber.
Fig. 6 is a schematic structural view of one side of the cover plate.
Fig. 7 is a schematic view of another angle of one side of the cover plate.
Fig. 8 is a schematic structural view of the other side of the cover plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in the figure, an N pole structure comprises a cover plate 2 which is matched with a middle shell 1 to form an N pole cavity, the edge of the cover plate, which is not contacted with the side wall of the middle shell, is provided with side walls which extend towards the middle shell, the cover plate is jointed with the middle shell through the side walls to form a closed N pole cavity, the side walls of the cover plate are jointed with the middle shell, so that a joint is close to the middle shell, the length of the side walls can be used as a creepage distance, the creepage distance between an N pole on-off structure in the N pole cavity and an electric operating mechanism is increased, meanwhile, a moving contact, a fixed contact and an arc extinguishing chamber which are subjected to strong electricity in the cavity are completely isolated from the electric operating mechanism, one end, which is contacted with the side wall of the middle shell, of the cover plate is provided with a contact operating mechanism correspondingly, and a gear transmission mechanism which is provided with the electric operating mechanism is arranged at the position, and the joint is close to the electric operating mechanism, but the joint is not caused to interference of strong electricity and weak electricity, so that the layout between the N pole on-off structure in the shell and the electric operating mechanism is more reasonable.
Meanwhile, the arc extinguishing chamber can be or is not installed.
Be equipped with N utmost point moving contact 6, N utmost point static contact 4, contact operating device 7 and explosion chamber 5 in the N utmost point cavity, wherein contact operating device and N utmost point moving contact linkage set up, the explosion chamber sets up in the below of N utmost point moving contact, and N utmost point static contact also sets up in the top of explosion chamber, and is located the front end of N utmost point moving contact direction of action, places the explosion chamber in the below of both, and the mode that sets up in static contact one side in the past, its better space in the casing of having utilized makes the apron keep apart explosion chamber and middle casing's cavity that simultaneously can be better.
The apron is including being used for the cladding to extend to the first space 26 of wiring board 3 of N utmost point static contact department by N utmost point play line terminal department, be used for cladding the second space 28 of N utmost point moving contact, be used for holding the third space 27 of contact operating device and be used for cladding the fourth space 29 of N utmost point explosion chamber, four space intercommunication settings, and each space all is equipped with the boundary wall 21 with the one end of the lateral wall contact of intermediate casing, four spaces intercommunication each other, cladding whole N utmost point break-make structure, and utilize with intermediate casing's lateral wall and boundary wall, realize the totally enclosed of whole N utmost point cavity, ensure that the N utmost point break-make structure and the electric operating device that are in same cavity keep apart completely, utilize intermediate casing's lateral wall moreover, make the structure of this apron more reasonable.
The third space, the second space and the fourth space are arranged in a stepped manner, are sequentially lifted to meet different structural installation requirements, meanwhile, the change of the height is also reflected on the cover plate, and when the gear transmission mechanism of the electric operating mechanism is installed, the meshing between gears can be directly completed by utilizing the height difference, so that the space utilization rate is improved.
The first space is communicated with the second space, the third space and the fourth space, so that the wiring board arranged in the first space can directly extend into the three spaces to be used as a static contact.
The upper and lower both sides in first space are equipped with the boundary wall, and the one end in two boundary walls is connected with the boundary wall in third space and fourth space respectively, and the other end forms the first import 8 that is used for the wiring board to get into, and the wiring board is arranged in between two boundary walls, and the shape in this first space and the shape looks adaptation of wiring board, guarantees its complete isolation setting between import to the N utmost point static contact, utilizes simultaneously and sets up in boundary wall and middle casing laminating, sets up the piece near middle casing for the boundary wall uses as creepage distance.
The first import includes first cover portion 22, first cover portion is higher than the surface setting of adjacent apron, just be equipped with first baffle 23 between the lower border of first cover portion and the limit wall, the first cover portion of lifting setting cooperates with the chamber wall in wiring terminal installation cavity, covers the wiring board of this department to with its leading-in first space, utilize first baffle to realize the isolation of import department simultaneously, guarantee the isolation of import department.
One side of apron is equipped with second cover portion 24, its the second cover portion is higher than the surface setting of adjacent apron, just be equipped with second baffle 25 between the upper edge and the limit wall of second cover portion, second cover portion and second baffle and the chamber wall in inlet wire terminal installation cavity of middle casing form the second import that is used for the terminal plate of N utmost point inlet wire terminal to get into the N utmost point cavity. The lifted second covering part is matched with the cavity wall of the installation cavity of the wire inlet terminal to form a second inlet 9 for the wiring board to enter the N pole cavity, and the isolation at the inlet is realized by the matching of a second baffle plate.
The border of fourth space both sides all is equipped with the limit wall, just the lower border in fourth space sets up with the lateral wall contact of middle casing, and is equipped with strengthening rib 210 between the two limit walls, and the limit wall of both sides cooperates with the explosion chamber mounting groove on the middle casing, realizes the totally closed setting of explosion chamber, and the limit wall of both sides directly extends to the lateral wall of middle casing, and sets up the strengthening rib between two limit walls for the installation of restriction explosion chamber.
The utility model provides an adopt above-mentioned external circuit breaker of compact electric energy meter of N utmost point break-make structure, its includes the casing that comprises middle casing 1 and the side cap of both sides, the both sides of middle casing form respectively and are used for holding the first cavity of L utmost point break-make structure and are used for holding the second cavity of N utmost point break-make structure and electric operating structure, be equipped with the apron 2 that forms N utmost point cavity with middle casing cooperation in the second cavity, the border that the apron was not contacted with the lateral wall of middle casing all is equipped with the limit wall that extends towards middle casing, the apron passes through limit wall and middle casing laminating and forms confined N utmost point cavity, be equipped with N utmost point moving contact, N utmost point stationary contact, contact operating mechanism and explosion chamber in the N utmost point cavity.
The examples should not be construed as limiting the invention, but any modifications based on the spirit of the invention should be within the scope of the invention.
Claims (5)
1. An external circuit breaker of compact electric energy meter, its characterized in that: the novel high-voltage power supply comprises a shell body formed by a middle shell body and side covers on two sides, wherein the two sides of the middle shell body are respectively provided with a first cavity for accommodating an L-pole on-off structure and a second cavity for accommodating an N-pole structure and an electric operation structure, a cover plate which is matched with the middle shell body to form the N-pole cavity is arranged in the second cavity, the edge of the cover plate, which is not contacted with the side wall of the middle shell body, is provided with a side wall which extends towards the middle shell body, the cover plate is attached to the middle shell body through the side wall to form a closed N-pole cavity, an N-pole moving contact, an N-pole fixed contact and a contact operation mechanism are arranged in the N-pole cavity, the cover plate comprises a first space for coating a wiring plate which is extended to the N-pole moving contact from the N-pole terminal, a second space for coating the N-pole moving contact and a third space for accommodating the contact operation mechanism, one ends of the respective spaces, which are not contacted with the side wall of the middle shell body, are respectively provided with side walls, the fourth space for coating the N-pole cavity is arranged in the cover plate, the fourth space is positioned below the second space, the fourth space is attached to the fourth space, the fourth space is arranged on the side wall of the side wall, the fourth space is connected with the side wall of the fourth space, and the fourth space is arranged on the side wall, and the side wall is in the top wall of the fourth space is in the contact with the fourth space, and the fourth space is provided with the side wall, which is in the top with the side wall, and the fourth space, and the top wall is connected with the fourth space, and the top wall, and the fourth space is.
2. The compact electric energy meter external circuit breaker of claim 1, wherein: the third space, the second space and the fourth space are arranged in a step shape.
3. The compact electric energy meter external circuit breaker of claim 1, wherein: the upper and lower both sides in first space are equipped with the limit wall, and the one end of two limit walls is connected with the limit wall in third space and fourth space respectively, and the other end forms the first import that is used for the wiring board to get into.
4. The compact electric energy meter external circuit breaker of claim 3, wherein: the first inlet comprises a first covering part, the first covering part is higher than the surface of the adjacent cover plate, and a first baffle is arranged between the lower edge of the first covering part and the side wall.
5. The compact electric energy meter external circuit breaker of claim 1, wherein: one side of apron is equipped with the second and covers the portion, its the second covers the surface setting that the portion is higher than adjacent apron, just be equipped with the second baffle between the upper edge and the limit wall of second cover the portion, second covers the second and covers the second baffle and the second import that the terminal board that is used for N utmost point incoming line terminal gets into the N utmost point cavity of the chamber wall formation of the inlet wire terminal installation cavity of middle casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111296819.3A CN114023605B (en) | 2021-11-04 | N utmost point structure and external circuit breaker of compact electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111296819.3A CN114023605B (en) | 2021-11-04 | N utmost point structure and external circuit breaker of compact electric energy meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114023605A CN114023605A (en) | 2022-02-08 |
| CN114023605B true CN114023605B (en) | 2024-07-02 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106328435A (en) * | 2016-11-04 | 2017-01-11 | 平高集团有限公司 | Arc-extinguishing chamber, arc-extinguishing chamber tank and high-voltage switching equipment applying this arc-extinguishing chamber |
| CN207149504U (en) * | 2017-09-09 | 2018-03-27 | 浙江凯发电气有限公司 | A kind of Minitype electrical leakage breaker N poles arc quenching system |
| CN114023604A (en) * | 2021-11-04 | 2022-02-08 | 浙江天正电气股份有限公司 | Compact electric energy meter external circuit breaker |
| CN216288226U (en) * | 2021-11-04 | 2022-04-12 | 浙江天正电气股份有限公司 | Compact electric energy meter external circuit breaker |
| CN216487894U (en) * | 2021-11-04 | 2022-05-10 | 浙江天正电气股份有限公司 | N-pole structure and compact electric energy meter external circuit breaker |
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106328435A (en) * | 2016-11-04 | 2017-01-11 | 平高集团有限公司 | Arc-extinguishing chamber, arc-extinguishing chamber tank and high-voltage switching equipment applying this arc-extinguishing chamber |
| CN207149504U (en) * | 2017-09-09 | 2018-03-27 | 浙江凯发电气有限公司 | A kind of Minitype electrical leakage breaker N poles arc quenching system |
| CN114023604A (en) * | 2021-11-04 | 2022-02-08 | 浙江天正电气股份有限公司 | Compact electric energy meter external circuit breaker |
| CN216288226U (en) * | 2021-11-04 | 2022-04-12 | 浙江天正电气股份有限公司 | Compact electric energy meter external circuit breaker |
| CN216487894U (en) * | 2021-11-04 | 2022-05-10 | 浙江天正电气股份有限公司 | N-pole structure and compact electric energy meter external circuit breaker |
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