CN111668744A - Low-voltage switch unit for low-voltage switch cabinet - Google Patents
Low-voltage switch unit for low-voltage switch cabinet Download PDFInfo
- Publication number
- CN111668744A CN111668744A CN202010487331.8A CN202010487331A CN111668744A CN 111668744 A CN111668744 A CN 111668744A CN 202010487331 A CN202010487331 A CN 202010487331A CN 111668744 A CN111668744 A CN 111668744A
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- China
- Prior art keywords
- low
- voltage switch
- device module
- box body
- switch unit
- 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
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Classifications
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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
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H89/00—Combinations of two or more different basic types of electric switches, relays, selectors and emergency protective devices, not covered by any single one of the other main groups of this subclass
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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
- H02B1/015—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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- 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
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
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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
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/045—Details of casing, e.g. gas tightness
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Breakers (AREA)
Abstract
The invention discloses a low-voltage switch unit for a low-voltage switch cabinet, which comprises a sealed box body, wherein the box body comprises an insulating mounting plate forming one side surface of the box body, an arc extinguishing device module fixed on the insulating mounting plate is arranged in the box body, a bus connecting terminal fixed on the insulating mounting plate and connected with the arc extinguishing device module is arranged on the outer side of the box body, and a tripping device module, a mechanism device module and a driving device module are arranged on the arc extinguishing device module. The integrated design of the box body and the circuit breaker is adopted, and the overall temperature rise of the low-voltage switch cabinet can be effectively reduced by methods of reducing contact points, adjusting phase intervals and the like; the internal space of the original low-voltage switch cabinet can be fully utilized, and the size of the low-voltage switch cabinet, particularly the size in the width direction, is effectively reduced; the modular design is adopted, the low-voltage switch cabinet can be completely taken out, the internal structure of the low-voltage switch unit also adopts the modular design, and the production organization of the low-voltage switch unit and the maintenance of the unit are facilitated.
Description
Technical Field
The invention relates to a low-voltage switch unit for a low-voltage switch cabinet, and belongs to the technical field of electrical equipment.
Background
The low-voltage switch cabinet is an electrical device, and the existing low-voltage switch cabinet adopts a circuit breaker as a main control switch, and the circuit breaker is fixed in the cabinet body. The environment of the circuit breaker is inconsistent with the internal environment of the cabinet body in the development and authentication process, so that the problems of temperature rise, large volume and the like of the conventional low-voltage switch cabinet generally exist; meanwhile, the circuit breaker element is exposed inside the cabinet body, and the internal environment of the cabinet body is easily influenced by the external environment, so that the service life of electronic devices of the circuit breaker is reduced. The specific disadvantages are as follows:
1. the existing low-voltage switch cabinet is limited by the size of a circuit breaker, so that the whole size cannot be reduced, particularly the size in the width direction cannot be reduced;
2. because the circuit breaker development and certification belongs to an open environment and is different from a relatively closed environment in a low-voltage switch cabinet, the overall temperature rise of the low-voltage switch cabinet is higher due to higher temperature rise of the circuit breaker, and therefore the circuit breaker can only be used in a capacity reduction mode;
3. the circuit breaker component of the existing low-voltage switch cabinet can not be sealed, so that the electronic device of the circuit breaker component is influenced by the external environment, and the service life of the electronic device is shortened.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: how to reduce the volume of the low-voltage switch cabinet, reduce the temperature rise of the low-voltage switch cabinet and improve the service life of electronic devices.
In order to solve the technical problem, the technical scheme of the invention is to provide a low-voltage switch unit for a low-voltage switch cabinet, which is characterized in that the low-voltage switch unit is of a box type structure formed by integrating and integrating a box body and a circuit breaker and comprises a sealed box body, the box body comprises an insulating mounting plate forming one side surface of the box body, an arc extinguishing device module fixed on the insulating mounting plate is arranged in the box body, a bus connecting terminal fixed on the insulating mounting plate and connected with the arc extinguishing device module is arranged on the outer side of the box body, a tripping device module for fault protection, a mechanism device module for realizing the closing and opening of a contact of the switch unit and a driving device module for automatically storing energy for the mechanism device module are arranged on the.
Preferably, an intelligent control device module is further arranged in the box body.
Preferably, the outer surface of the box body is provided with a display panel and an operation and maintenance button for operation and maintenance in an emergency state.
Compared with the prior art, the invention has the following beneficial effects:
1. the low-voltage switch unit provided by the invention adopts an integrated design of the box body and the circuit breaker, and can fully utilize the internal space of the original low-voltage switch cabinet, thereby effectively reducing the size of the low-voltage switch cabinet, particularly the size in the width direction;
2. the low-voltage switch unit provided by the invention adopts the integrated design of the box body and the circuit breaker, breaks through the limitation of the size and the internal structure of the original circuit breaker, and can effectively reduce the integral temperature rise of the low-voltage switch cabinet by reducing contact points, adjusting phase intervals and the like;
3. the low-voltage switch unit provided by the invention adopts a modular design, so that the low-voltage switch unit can be completely taken out of the low-voltage switch cabinet, the maintenance of a low-voltage switch cabinet by a transport and inspection person is facilitated, the internal structure of the low-voltage switch unit also adopts the modular design, the production organization of the low-voltage switch unit is facilitated, the maintenance of the unit is facilitated, and the service life of an electronic device is prolonged;
4. through the design of the modularized intelligent control device, the intelligent controller module can be replaced under the condition of no power failure.
Drawings
Fig. 1 is a schematic view of a low-voltage switch unit provided by the invention in a low-voltage switch cabinet;
FIG. 2 is a side view of FIG. 1;
fig. 3 is an overall schematic view of a low voltage switching unit provided by the present invention;
FIG. 4 is a side view of FIG. 3;
fig. 5 is a schematic diagram of an internal structure of a low-voltage switch unit provided by the present invention;
fig. 6 is a side view of fig. 5.
Detailed Description
In order to make the invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.
The invention provides a low-voltage switch unit for a low-voltage switch cabinet, which is used for replacing a circuit breaker element in the low-voltage switch cabinet and can realize functions including but not limited to a circuit breaker; the box body 1 and the arc extinguishing device module 9 are integrated into a whole through an integrated design, namely the box body with the function of a breaker; through the modular design, the whole low-voltage switch unit A is a module, and the components in the low-voltage switch unit A are also in the modular design, taking a 2500A incoming cabinet switch unit as an example, the internal part of the low-voltage switch unit A comprises five modules, namely an intelligent control device module 8, a tripping device module 5, a mechanism device module 6, a driving device module 7, an arc extinguishing device module 9 and the like; the low-voltage switch unit adopts a sealed structure design, and isolates the module from the external environment.
As shown in fig. 3 to 6, the low voltage switch unit of the present invention includes a box 1, a display panel 2, an operation and maintenance button 3, a bus connecting terminal 4, a trip device module 5, a mechanism device module 6, a driving device module 7, an intelligent control device module 8, an arc extinguishing device module 9, and an insulating mounting plate 10, wherein the box 1 includes the insulating mounting plate 10 forming a side surface of the box 1, the arc extinguishing device module 9 fixed on the insulating mounting plate 10 is disposed in the box 1, the bus connecting terminal 4 fixed on the insulating mounting plate 10 and connected to the arc extinguishing device module 9 is disposed on an outer side of the box 1, and the trip device module 5, the mechanism device module 6, and the driving device module 7 are disposed on the arc extinguishing device module 9.
An intelligent control device module 8 is also arranged in the box body 1. The outer surface of the box body 1 is provided with a display panel 2 and an operation and maintenance button 3.
The function of each component in the present invention is explained as follows:
display panel 2: the device is used for displaying the state of the current switch unit and the setting of related parameters;
operation and maintenance button 3: the device is used for operation and maintenance in an emergency state, such as buttons for switching on, switching off, emergency tripping and the like when a secondary circuit fails;
busbar connection terminal 4: the bus bar is used for connecting the switch unit and the bus bar to form a primary loop;
trip unit module 5: collecting primary loop side voltage and current signals, analyzing and judging the signals through a logic control unit, and taking corresponding actions according to results to realize fault protection of overload, short circuit and the like in a circuit;
mechanism device module 6: the reliable on-off and on-off functions of the switch unit contact are realized;
the driving device module 7: automatically storing energy for the mechanism device module;
intelligent control device module 8: the intelligent component integrates and integrates functions of secondary equipment such as switch unit protection, monitoring, indication and the like;
arc extinguishing device module 9: extinguishing the electric arc in the opening and closing process of the switch unit;
insulating mounting plate 10: the arc extinguishing device module 9 and the busbar connecting terminal 4 are provided with mounting supports and form a closed space as a part of the switch unit cabinet body.
The driving device module 7 stores energy to the mechanism device module 6 through a power device such as a motor, and the mechanism device module 6 is connected with an inner contact of the arc extinguishing device module 9 through a connecting rod, namely, the switching unit is operated to perform switching-on and switching-off operations; when the tripping device module 5 collects the primary side fault of the switch unit, the tripping device module 5 logically judges and triggers the mechanism device module 6 to drive the contact to open the brake through the action of the internal mechanism of the tripping device module 5; the intelligent control device module 8 integrates all the functions of control, monitoring, display and the like in the switch unit, including control protection without being limited to the mechanism device module 6 and the driving device module 7.
Because the low-voltage switch unit A of the invention has small volume, only occupies small area, and has much smaller volume compared with the existing circuit breaker, only a small space needs to be arranged on the low-voltage switch cabinet, thereby greatly reducing the volume of the low-voltage switch cabinet, as shown in figures 1 and 2.
Claims (3)
1. The utility model provides a low-voltage switch unit for low-voltage switchgear, a serial communication port, integrate by box and circuit breaker, the box formula structure of integration formation, including sealed box (1), box (1) is including insulating mounting panel (10) of constituteing box (1) one side, be equipped with arc control device module (9) of fixing on insulating mounting panel (10) in box (1), the outside of box (1) is equipped with fixes on insulating mounting panel (10) and female connecting terminal (4) of being connected with arc control device module (9), be equipped with trip gear module (5) that are used for fault protection on arc control device module (9), a mechanism device module (6) for realizing that the switch unit contact closes and opens and shuts, carry out automatic energy storage drive arrangement module (7) to mechanism device module (6).
2. Low-voltage switchgear unit, as claimed in claim 1, characterized in that said cabinet (1) is also provided with an intelligent control device module (8).
3. The low-voltage switchgear unit, as set forth in claim 1, characterized in that the outer surface of said cabinet (1) is provided with a display panel (2), an operation and maintenance button (3) for operation and maintenance in emergency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010487331.8A CN111668744A (en) | 2020-06-02 | 2020-06-02 | Low-voltage switch unit for low-voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010487331.8A CN111668744A (en) | 2020-06-02 | 2020-06-02 | Low-voltage switch unit for low-voltage switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111668744A true CN111668744A (en) | 2020-09-15 |
Family
ID=72385537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010487331.8A Pending CN111668744A (en) | 2020-06-02 | 2020-06-02 | Low-voltage switch unit for low-voltage switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111668744A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101477921A (en) * | 2008-12-16 | 2009-07-08 | 上海电器科学研究所（集团）有限公司 | Connection locking structure for protection electric appliance controlling |
| CN101494143A (en) * | 2008-01-23 | 2009-07-29 | 浙江正泰电器股份有限公司 | Switch electric appliance with control and protection function |
| CN201766305U (en) * | 2010-06-21 | 2011-03-16 | 贵州长征电器成套有限公司 | Intelligent universal circuit breaker |
| CN206595185U (en) * | 2017-03-01 | 2017-10-27 | 珠海康晋电气股份有限公司 | A kind of gas-insulated switchgear breaker |
| FR3053828A1 (en) * | 2016-07-08 | 2018-01-12 | Schneider Electric Industries Sas | INTERCONNECTION MODULE OF A CIRCUIT BREAKER AND A CONTACTOR FOR AN ELECTRICAL ASSEMBLY |
| CN110931314A (en) * | 2019-08-23 | 2020-03-27 | 天津市中力神盾电子科技有限公司 | Composite switch and distribution box with same |
-
2020
- 2020-06-02 CN CN202010487331.8A patent/CN111668744A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101494143A (en) * | 2008-01-23 | 2009-07-29 | 浙江正泰电器股份有限公司 | Switch electric appliance with control and protection function |
| CN101477921A (en) * | 2008-12-16 | 2009-07-08 | 上海电器科学研究所（集团）有限公司 | Connection locking structure for protection electric appliance controlling |
| CN201766305U (en) * | 2010-06-21 | 2011-03-16 | 贵州长征电器成套有限公司 | Intelligent universal circuit breaker |
| FR3053828A1 (en) * | 2016-07-08 | 2018-01-12 | Schneider Electric Industries Sas | INTERCONNECTION MODULE OF A CIRCUIT BREAKER AND A CONTACTOR FOR AN ELECTRICAL ASSEMBLY |
| CN206595185U (en) * | 2017-03-01 | 2017-10-27 | 珠海康晋电气股份有限公司 | A kind of gas-insulated switchgear breaker |
| CN110931314A (en) * | 2019-08-23 | 2020-03-27 | 天津市中力神盾电子科技有限公司 | Composite switch and distribution box with same |
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| 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: 20200915 |