CN212507791U - Novel combination of charged display and electromagnetic lock - Google Patents
Novel combination of charged display and electromagnetic lock Download PDFInfo
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- CN212507791U CN212507791U CN202020508784.XU CN202020508784U CN212507791U CN 212507791 U CN212507791 U CN 212507791U CN 202020508784 U CN202020508784 U CN 202020508784U CN 212507791 U CN212507791 U CN 212507791U
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Abstract
The utility model provides a novel combination of a charged display and an electromagnetic lock, which is characterized in that the charged display comprises a battery, a voltage comparison module, a voltage stabilization module, a rectification module, a signal comparison module, a self-checking circuit, a logic circuit and a signal control output circuit; the rectifying module is connected with the voltage stabilizing module, the voltage stabilizing module is connected with the voltage comparison module, the voltage comparison module is respectively connected with the signal comparison module and the battery, the signal comparison module is connected with the self-checking circuit, the signal comparison module and the voltage comparison module are all connected with the logic circuit, the logic circuit is connected with the signal control output circuit, and the signal output circuit is used for sending a charged indication and controlling the electromagnetic lock. The utility model discloses can directly utilize high-voltage signal to charge when detecting high-voltage electricity, utilize the battery of the completion of charging to supply power to the electromagnetic lock after the outage, make things convenient for the staff operation, break away from traditional electromagnetic lock to the reliance of power, reduce cost.
Description
Technical Field
The utility model relates to an electromagnetic lock, more specifically relate to a novel combination of electrified display and electromagnetic lock belongs to electric power system high tension switchgear technical field.
Background
The design of electromagnetic lock is the same with the electro-magnet, utilizes the principle of electromagnetism, and when the electric current passed through the silicon steel sheet, the electromagnetic lock can produce powerful suction and tightly hold the hasp and reach the effect that the unblock was opened the door. The traditional high-voltage electrified display sends a command to switch on an external power supply of the electromagnetic lock after confirming that a measured point has no high voltage electricity through a sensor, and the electromagnetic lock generates suction force after being electrified so as to open the door. When the high-voltage live display detects that high voltage exists at the measured point, the external power supply of the electromagnetic lock is cut off, the suction force disappears after the electromagnetic lock loses power, and the lock cylinder is popped out through the spring mechanism of the electromagnetic lock, so that the door can be locked. At present, an external power supply is required to be connected to an electrified display and an electromagnetic lock sold and used in the market, and the high-voltage electrified display is used for controlling the power supply to electrify the electromagnetic lock or not so as to achieve the purposes of locking and unlocking.
In a conventional transformer substation or a power station capable of providing an external power supply, a special alternating current/direct current device capable of supplying power continuously supplies power to a power screen cabinet in the substation, and the electromagnetic lock can well achieve the purposes of unlocking and locking so as to meet the five-prevention requirement in a power system. However, with the requirements of land saving, convenient and fast installation and the like in urban network construction and transformation, the box-type transformer substations are widely used. The box-type substation usually adopts the simplest mode structure, combines high-voltage switchgear, transformer and low-voltage switchgear together, generally does not have the alternating current-direct current screen. Therefore, the electromagnetic lock of the high-voltage cabinet door needs to obtain a power supply from other places, in the current most methods, the electric shock risk caused by the fact that a worker mistakenly enters a live interval is caused without installing the electromagnetic lock, and the requirement of electric power five prevention cannot be met; in another responsible approach, our engineers install a voltage transformer at the incoming line that converts high voltage to low voltage to power the electromagnetic lock. The cost of the box-type transformer substation is firstly increased, and secondly, after the power failure of the incoming cable, the voltage transformer cannot output a low-voltage power supply to supply power to the electromagnetic lock, and at the moment, the door is opened for maintenance after the power failure, manual unlocking by a key is needed, and the automatic unlocking and locking functions cannot be perfectly realized. Of course, there are other methods, such as adding an independent operation power supply (UPS) device, or directly taking power from a box-to-low voltage cabinet, etc., which either have cost defects, or need a key to unlock after a high-voltage power failure, and cannot realize the function of automatic unlocking and locking.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a novel combination of electrified display and electromagnetic lock breaks away from the dependence of traditional electromagnetic lock to the power.
The utility model discloses a realize above-mentioned purpose, realize through following technical scheme:
a novel combination of an electrified display and an electromagnetic lock is characterized in that the electrified display comprises a battery, a voltage comparison module, a voltage stabilization module, a rectification module, a signal comparison module, a self-checking circuit, a logic circuit and a signal control output circuit;
the rectifying module is connected with the voltage stabilizing module, the voltage stabilizing module is connected with the voltage comparison module, the voltage comparison module is respectively connected with the signal comparison module and the battery, the signal comparison module is connected with the self-checking circuit, the signal comparison module and the voltage comparison module are all connected with the logic circuit, the logic circuit is connected with the signal control output circuit, and the signal control output circuit is used for sending a charged indication and controlling the electromagnetic lock.
Preferably, the live display further comprises a lightning protection module.
The utility model has the advantages that:
under the inconvenient circumstances of charging of box-type substation, electromagnetic lock is given up in many places, the utility model discloses compare with it, use electromagnetic lock can reduce staff's electric shock danger.
Besides, the electrified display does not need an external power supply, can be charged by directly utilizing a high-voltage signal when detecting high voltage electricity, and supplies power to the electromagnetic lock by utilizing a battery which is charged after power failure.
Meanwhile, the cost requirement of the box-type substation is reduced by reducing the external power supply.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, the novel combination of the charged display and the electromagnetic lock comprises a battery, a voltage comparison module, a voltage stabilization module, a rectification module, a signal comparison module, a self-checking circuit, a logic circuit, a signal control output circuit and a lightning protection module;
the rectifying module is connected with the voltage stabilizing module, the voltage stabilizing module is connected with the voltage comparing module, the voltage comparing module is respectively connected with the signal comparing module and the battery, the signal comparing module is connected with the self-checking circuit, the signal comparing module and the voltage comparing module are all connected with the logic circuit, the logic circuit is connected with the signal control output circuit, and the signal control output circuit is used for sending a charged indication and controlling the electromagnetic lock.
The charged display is connected with a high-voltage line or primary equipment through a high-voltage sensor, the high-voltage sensor is used for measuring high-voltage electricity and then outputting a voltage signal to the charged display, and the voltage (generally about 40V) charges a battery through a rectifying module, a voltage stabilizing module and a voltage comparing module.
When the normal switch cabinet is in electrified operation, the sensor detects high voltage and outputs a voltage signal to the electrified display, and the electrified display sends an electrified indication and charges an internal battery by using the voltage; when the maintenance operation, the operator can cut off the high voltage power supply of cubical switchboard, then opens the cabinet door, and the sensor can not detect high-tension electricity this moment, and electrified display extinguishes electrified instruction, and the battery begins to supply power for the electromagnetic lock, makes the electromagnetic lock unblock open the door.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. A novel combination of an electrified display and an electromagnetic lock is characterized in that the electrified display comprises a battery, a voltage comparison module, a voltage stabilization module, a rectification module, a signal comparison module, a self-checking circuit, a logic circuit and a signal control output circuit;
the rectifying module is connected with the voltage stabilizing module, the voltage stabilizing module is connected with the voltage comparing module, the voltage comparing module is respectively connected with the signal comparing module and the battery, the signal comparing module is connected with the self-checking circuit, the signal comparing module and the voltage comparing module are all connected with the logic circuit, and the logic circuit is connected with the signal control output circuit.
2. The novel powered display and electromagnetic lock combination of claim 1, wherein the powered display further comprises a lightning protection module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020508784.XU CN212507791U (en) | 2020-04-09 | 2020-04-09 | Novel combination of charged display and electromagnetic lock |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020508784.XU CN212507791U (en) | 2020-04-09 | 2020-04-09 | Novel combination of charged display and electromagnetic lock |
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| CN212507791U true CN212507791U (en) | 2021-02-09 |
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| CN202020508784.XU Active CN212507791U (en) | 2020-04-09 | 2020-04-09 | Novel combination of charged display and electromagnetic lock |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114006376A (en) * | 2021-11-04 | 2022-02-01 | 广东电网有限责任公司 | Voltage replenisher |
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2020
- 2020-04-09 CN CN202020508784.XU patent/CN212507791U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114006376A (en) * | 2021-11-04 | 2022-02-01 | 广东电网有限责任公司 | Voltage replenisher |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A new combination of charged display and electromagnetic lock Effective date of registration: 20221221 Granted publication date: 20210209 Pledgee: Postal Savings Bank of China Limited Jinan Branch Pledgor: JINAN QINGHE ELECTRIC Co.,Ltd. Registration number: Y2022980028557 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |