CN210985228U - Cabinet door interlocking mechanism of low-voltage cabinet - Google Patents
Cabinet door interlocking mechanism of low-voltage cabinet Download PDFInfo
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- CN210985228U CN210985228U CN201921909283.6U CN201921909283U CN210985228U CN 210985228 U CN210985228 U CN 210985228U CN 201921909283 U CN201921909283 U CN 201921909283U CN 210985228 U CN210985228 U CN 210985228U
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- circuit breaker
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Abstract
Cabinet door interlocking device of low-voltage cabinet belongs to electrical control technical field. The electromagnetic lock type low-voltage cabinet comprises a cabinet body of the low-voltage cabinet and a cabinet door connected to the cabinet body, wherein a circuit breaker is installed in the low-voltage cabinet, an electromagnetic lock is installed between the cabinet door of the low-voltage cabinet and the cabinet body, and an auxiliary normally closed contact of the circuit breaker is connected with a power supply after being connected with the electromagnetic lock in series. The utility model discloses a reliable interlocking between circuit breaker and the cabinet door can make things convenient for the operator to unblank, can ensure operator's personal safety again.
Description
Technical Field
The utility model belongs to the technical field of electrical control, specifically be a cabinet door interlocking gear of low-voltage cabinet.
Background
The low-voltage cabinet is an electrical device, and the external line firstly enters a main control switch in the cabinet and then enters a branch control switch, and each branch is arranged according to the requirement. Such as instruments, automatic control, magnetic switches of motors, various alternating current contactors and the like, and also high-voltage chamber and low-voltage chamber switch cabinets, high-voltage buses, such as power plants and the like, and low-cycle load shedding for keeping main equipment. The device is suitable for industries such as power plants, petroleum, chemical industry, metallurgy, textile, high-rise buildings and the like, is used for power transmission, power distribution and electric energy conversion, and is equipment responsible for completing electric energy control, protection, conversion and distribution in a low-voltage power supply system.
The low-voltage cabinet in the prior art adopts a common mechanical lock or a mechanical lock with a simple and universal key, anyone can open the door lock at will, and the use is very unsafe.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a cabinet door interlocking gear of low-voltage cabinet can effectively solve the problem among the background art.
The technical scheme for realizing the purpose is as follows: including the cabinet body of low-voltage cabinet and the cabinet door of connection on the cabinet body, installing circuit breaker, its characterized in that in the low-voltage cabinet: and an electromagnetic lock is arranged between the cabinet door and the cabinet body of the low-voltage cabinet, and an auxiliary normally closed contact of the circuit breaker is connected with a power supply after being connected with the electromagnetic lock in series.
Furthermore, a fuse is connected in series among the auxiliary normally closed contact, the electromagnetic lock and the power supply of the circuit breaker which are connected in series.
The utility model has the advantages that:
the utility model discloses an install the electromagnetic lock on the cabinet door, reach the interlocking requirement through the electromagnetic lock and the supplementary normally closed contact cooperation of circuit breaker, when the circuit breaker is in the combined floodgate state, the power supply circuit disconnection of electromagnetic lock, the lock can not be opened, when the circuit breaker is in the separating brake state, the power supply circuit switch-on of electromagnetic lock, the lock can be opened; when the system is powered off, the cabinet door is unlocked and opened through the key.
The utility model discloses a reliable interlocking between circuit breaker and the cabinet door can make things convenient for the operator to unblank, can ensure operator's personal safety again.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic diagram of the present invention.
Detailed Description
As shown in fig. 1 and 2, the utility model discloses a low-voltage cabinet 1, low-voltage cabinet 1 include the cabinet body 5 and connect the cabinet door 6 on the cabinet body, install circuit breaker 2 in the low-voltage cabinet 1, install electromagnetic lock 3 between the cabinet door 5 of low-voltage cabinet 1 and the cabinet body 6, circuit breaker 2's supplementary normally closed contact 2.1, electromagnetic lock 3 and fuse 4 concatenate the back and connect power.
When the circuit breaker 2 is in a closing state, the power supply loop of the electromagnetic lock 3 is disconnected, and the lock cannot be opened; when the system is powered off, the cabinet door 5 of the low-voltage cabinet 1 is unlocked and opened through the key.
As a further explanation of this embodiment, when the low voltage cabinet is configured with a plurality of cabinet doors, the electromagnetic locks may be installed on each cabinet door, and after being connected in parallel, the electromagnetic locks are connected in series with the auxiliary normally closed contacts of the circuit breaker, the electromagnetic locks, and the fuses and are connected to the power supply.
Claims (2)
1. Cabinet door interlocking gear of low-voltage cabinet, including the cabinet body of low-voltage cabinet and connect the cabinet door on the cabinet body, the interior circuit breaker, its characterized in that of installing of low-voltage cabinet: and an electromagnetic lock is arranged between the cabinet door and the cabinet body of the low-voltage cabinet, and an auxiliary normally closed contact of the circuit breaker is connected with a power supply after being connected with the electromagnetic lock in series.
2. The cabinet door interlocking mechanism of the low-voltage cabinet as claimed in claim 1, wherein: and fuses are connected among the auxiliary normally closed contacts of the circuit breakers, the electromagnetic lock and the power supply which are connected in series.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920830330 | 2019-06-04 | ||
| CN2019208303301 | 2019-06-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210985228U true CN210985228U (en) | 2020-07-10 |
Family
ID=71438638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921909283.6U Active CN210985228U (en) | 2019-06-04 | 2019-11-07 | Cabinet door interlocking mechanism of low-voltage cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210985228U (en) |
-
2019
- 2019-11-07 CN CN201921909283.6U patent/CN210985228U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |