阅读说明：本技术 开关柜母线仓防误开启闭锁装置 (Switch cabinet bus bin anti-false-opening and closing lock device ) 是由 苗全堂 高栋 牛卫光 路铭 王佳辉 王凯 秦任鹏 李景生 于 2019-12-10 设计创作，主要内容包括：本发明公开了一种开关柜母线仓防误开启闭锁装置,包括柜顶盖板转动活页(2)、闭锁孔(3)和闭锁槽(4),柜顶盖板转动活页(2)固定在母线仓柜顶一侧并与柜顶盖板(1)相连接,柜顶盖板(1)一侧可绕柜顶盖板转动活页(2)转动,闭锁槽(4)固定在母线仓柜顶另一侧,柜顶盖板(1)另一侧固定有与闭锁槽(4)相配合的闭锁孔(3)。所述闭锁槽(4)内安装有闭锁电磁铁,对柜顶盖板(1)实现闭锁或解锁。通过在母线柜顶盖板加装闭锁机构,实现对母线仓柜顶盖板的闭锁和解锁,准确、可靠地实现对母线仓柜顶盖板的闭锁,有效地防止柜顶工作人员误入带电间隔,极大的增加了柜顶工作的安全性。(The invention discloses a locking device for preventing a switch cabinet bus bin from being opened mistakenly, which comprises a cabinet top cover plate rotating hinge (2), a locking hole (3) and a locking groove (4), wherein the cabinet top cover plate rotating hinge (2) is fixed on one side of the top of the bus bin and is connected with a cabinet top cover plate (1), one side of the cabinet top cover plate (1) can rotate around the cabinet top cover plate rotating hinge (2), the locking groove (4) is fixed on the other side of the top of the bus bin, and the other side of the cabinet top cover plate (1) is fixed with the locking hole (3) matched with the locking groove (4). And a locking electromagnet is arranged in the locking groove (4) to lock or unlock the cabinet top cover plate (1). The locking mechanism is additionally arranged on the top cover plate of the bus cabinet, so that the top cover plate of the bus bin cabinet can be locked and unlocked, the locking of the top cover plate of the bus bin cabinet can be accurately and reliably realized, workers on the top of the cabinet can be effectively prevented from mistakenly entering an electrified interval, and the safety of the top of the cabinet is greatly improved.)

1. The open-close lock device for preventing the false opening of the bus compartment of the switch cabinet is used for switching the closed state of a cabinet top cover plate (1) when the top of the bus compartment cabinet works, and is characterized by comprising a cabinet top cover plate rotating hinge (2), a locking hole (3) and a locking groove (4), wherein,

a top cover plate (1) of the cabinet is hinged with one side of the top of the bus bin through a top cover plate rotating hinge (2), a locking groove (4) is fixed at the other side of the top of the bus bin, a locking electromagnet is installed in the locking groove (4), a locking hole (3) matched with the locking groove (4) is fixed at the other side of the top cover plate (1) of the cabinet,

the electromagnet power supply is led out from the bus bin cabinet and is controlled by a bus bin locking control loop to lock or unlock the top cover plate of the cabinet, the bus bin locking control loop comprises a normally open node KS (5) and a locking electromagnet Y1(6) which are taken from bus grounding knives or grounding handcart in-place signals, when buses are powered off, the bus grounding knives are closed, the normally open node KS (5) is closed, the locking electromagnet Y1(6) at the top of the bus bin cabinet is electrified and sucked, and the top cover plate (1) of the bus bin cabinet can be normally opened to work; if the bus grounding knife is not closed, the normally open node KS (5) is disconnected, the latching electromagnet Y1(6) at the top of the bus cabinet loses power and is released, and the top cover plate (1) of the bus bin cabinet cannot be opened.

2. The device for preventing the open-close lock of the bus bin of the switch cabinet from being mistakenly opened according to claim 1, further comprising locking electromagnets Y2-YN (7) which are connected in parallel with the locking electromagnet Y1(6) and are connected in series with the normally open node KS (5).

3. The device for preventing the opening and closing of the switch cabinet bus bar bin by mistake as claimed in claim 1, wherein the locking electromagnet can be replaced by a five-prevention lock.

4. The device for preventing the open and close of the bus bar bin of the switch cabinet according to claim 1, wherein the locking electromagnet can be replaced by an electronic lock.

5. The switch cabinet bus bar bin open/close lock device capable of preventing mistaken opening according to claim 1, wherein the connection mode of the cabinet top cover plate (1) and the bus bar bin top is a slide way connection.

Technical Field

The invention relates to the technical field of electrical equipment safety, in particular to an open-close lock device for preventing mistaken opening of a bus bin of a switch cabinet.

Background

The high-voltage switch cabinet is an electrical device, is used for switching on and off, controlling or protecting and the like in power generation, power transmission, power distribution, electric energy conversion and consumption of an electric power system, and is required to have a five-prevention function: the circuit breaker is prevented from being switched on by mistake, the isolating switch (or a handcart contact) is prevented from being switched on by load, the grounding wire (a grounding switch) is prevented from being hung in a charged state, the grounding wire (a grounding knife switch) is prevented from being switched on and power is supplied, and the circuit breaker is prevented from being switched into a charged interval by mistake. The function of preventing mistakenly entering into the electrified space of the existing switch cabinet mostly refers to the following two functions: 1) after the circuit breaker handcart is pulled out, a handcart room valve is automatically closed, and a high-voltage electrified part is isolated; 2) and the mechanical interlocking of the grounding switch and the door plate of the cable chamber is realized. When the line side is electroless and the handcart is in the test position, the grounding switch is closed, the hook on the door plate is unlocked, and the door plate of the cable chamber can be opened at the moment. However, when the cabinet top works, no related mechanical locking or electrical locking device exists, and when a maintainer opens the bus bar bin above the cabinet top to work, no related live indication can be referred to.

Drawings

FIG. 1 is a structural diagram of the locking device for preventing the bus bar bin of the switch cabinet from being opened by mistake,

FIG. 2 is a circuit diagram of the locking electromagnet control circuit of the device for preventing the switch cabinet bus bar bin from being opened by mistake,

wherein the content of the first and second substances,

1 cabinet top cover plate, 2 cabinet top cover plate rotating hinges, 3 locking holes, 4 locking grooves, 5 normally open nodes KS, 6 locking electromagnets Y1 and 7 locking electromagnets Y2-YN.

Detailed Description

The present invention and its embodiments will now be further described with reference to the accompanying drawings.

The invention discloses an open-close lock device for preventing mistaken opening of a bus bar bin of a switch cabinet, which is used for switching the closed state of a top cover plate 1 of the cabinet when the top of the bus bar bin is operated, and comprises a top cover plate rotating hinge 2, a locking hole 3 and a locking groove 4, wherein the top cover plate rotating hinge 2 is fixed on one side of the top of the bus bar bin and is connected with the top cover plate 1 of the cabinet, one side of the top cover plate 1 of the cabinet can rotate around the top cover plate rotating hinge 2 of the cabinet, the locking groove 4 is fixed on the other side of the top of the bus bar bin, and the other side of the top cover plate 1 of the cabinet is fixed with.

In a specific embodiment of the invention, a locking electromagnet is installed in the locking groove 4, and the electromagnet power supply is led out from the bus bin cabinet and is controlled by the bus bin locking control loop to lock or unlock the top cover plate 1 of the cabinet. As shown in fig. 2, the bus compartment locking control loop comprises a normally open node KS5 and a locking electromagnet Y16 which are taken from a PT cabinet bus grounding knife or grounding handcart in-place signal, when the bus is powered off, the bus grounding knife is closed, the normally open node KS5 is closed, the locking electromagnet Y16 on the top of the bus compartment cabinet is electrified and sucked, and the bus compartment cabinet top cover plate 1 can be normally opened to work; if the bus grounding knife is not closed, the normally open node KS5 is disconnected, the latching electromagnet Y16 at the top of the bus cabinet loses power and is released, and the top cover plate 1 of the bus compartment cabinet cannot be opened. As shown in fig. 2, the device further comprises latching electromagnets Y2-YN7, wherein N is a positive integer not less than 1, and the latching electromagnets Y16 are connected in parallel and in series with the normally open node KS 5.

In one embodiment of the present invention, the five-prevention lock or the electronic lock is selectively opened or locked according to the operation and power supply state by installing the five-prevention lock or the electronic lock on the locking groove 4 to be matched with the locking hole 3.

In another embodiment of the invention, the connection mode of the cabinet top cover plate 1 and the bus bin cabinet top is slide connection, hanging connection or the like.

The method has the advantages that whether the bus is electrified or not can be judged, all switch cabinet electrified display signals of the bus can be collected through the measurement and control device, whether the bus bin can be opened or not is judged through logical operation, and finally, a control signal is sent to the locking electromagnet, so that unlocking and locking of the top cover plate 1 of the bus bin cabinet are achieved.

It should be noted that the above is only the embodiment or descriptions of the present disclosure, and the protection scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present disclosure, and all the changes or substitutions should be covered by the protection scope of the present disclosure. The protection scope of the present application shall be subject to the protection scope of the claims.