Live-line alarm device for electric power high-voltage switch cabinet

Abstract

The utility model provides an electric power high-voltage switch cabinet live-line alarm device, which comprises a radar human body induction device, a pair of live-line display devices with a relay function, an alarm loudspeaker and an alarm indicating lamp, the pair of live-line display devices with the relay function are connected in parallel, an AC positive electrode end is a working power supply positive electrode, and an AC negative electrode end is a working power supply negative electrode; the alarm loudspeaker and the alarm indicating lamp are connected in parallel, one end is connected in series between the K2K4 of the pair of live display devices with the relay function, and the other end is connected with the negative electrode of the working power supply; the L1 end of the radar human body induction device is connected with the positive electrode of the working power supply, the N end is connected with the negative electrode of the working power supply, the L2 end is connected in series between the K1K3 of the pair of live display devices with the relay function, and the upper and lower contacts of the power high-voltage switch cabinet are provided with live induction terminals. The live-line alarm device for the power high-voltage switch cabinet can directly carry out live-line detection and actively give an alarm prompt.

Description

Technical Field

[0001] The utility model relates to the field of power high-voltage switch cabinet equipment, and particularly relates to a live warning device for a power high-voltage switch cabinet. Background Art

[0002] Power high-voltage switch cabinets are commonly used electrical equipment in the power system. Due to the requirements of equipment operation, the circuit breakers of power high-voltage switch cabinets need to be frequently overhauled. During the overhaul of the switch cabinet circuit breaker, the cabinet door of the circuit breaker chamber needs to be opened, but maintenance personnel cannot accurately judge whether the electrical nodes in the switch cabinet are live. Currently, live indicator lights are provided in the switches in use, but maintenance personnel need to actively identify and judge. When maintenance personnel overlook the inspection, electric shock accidents may occur. After the switch cabinet is opened, other people may enter by mistake and electric shock accidents may occur. Content of the Utility Model

[0003] In order to solve the problem that the power high-voltage switch cabinet in the prior art cannot actively judge whether the electrical nodes are live in time, the utility model provides a live warning device for a power high-voltage switch cabinet.

[0004] The technical solution of the utility model is realized as follows:

[0005] A live warning device for a power high-voltage switch cabinet includes: a radar human body induction device, a pair of live display devices with relay functions, an alarm speaker, and an alarm indicator light. The pair of live display devices with relay functions are connected in parallel, where the positive terminal of the AC is the positive pole of the working power supply, and the negative terminal of the AC is the negative pole of the working power supply; the alarm speaker and the alarm indicator light are connected in parallel, one end is connected in series between K2 and K4 of the pair of live display devices with relay functions, and the other end is connected to the negative pole of the working power supply; the L1 terminal of the radar human body induction device is connected to the positive pole of the working power supply, the N terminal is connected to the negative pole of the working power supply, and the L2 terminal is connected in series between K1 and K3 of the pair of live display devices with relay functions;

[0006] Live induction terminals are installed on the upper and lower contacts of the power high-voltage switch cabinet, and a pair of live display devices with relay functions are connected to the live induction terminals.

[0007] Preferably, it further includes an integrated housing. The alarm speaker and the alarm indicator light are arranged side by side on the front side of the integrated housing. A pair of live display devices with relay functions are located inside the integrated housing. The radar human body induction device is arranged on the upper side of the integrated housing. Positive and negative interfaces of the working power supply are arranged on the rear side of the integrated housing.

[0008] Preferably, the upper contact live indicator light and the lower contact live indicator light of the pair of live display devices with relay functions are located on the front side of the integrated housing, and the upper contact induction wire interface and the lower contact induction wire interface of the pair of live display devices with relay functions are located on the rear side of the integrated housing.

[0009] The beneficial effects of the present utility model are as follows: For the live warning device of the high-voltage switch cabinet of the present utility model, a pair of live display devices with relay functions are connected to the live induction terminals of the upper and lower contacts of the high-voltage power switch cabinet. If the live induction terminals are energized, the upper contact live indicator light and the lower contact live indicator light of the live display device with relay functions will be constantly on for prompt. At the same time, when the radar human body induction device senses a human body, the alarm indicator light will flash for prompt, and the alarm speaker will emit a sound, actively reminding the maintenance personnel of the danger of live electricity, and can also alert other people not to approach, and the warning is more stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0011] Figure 1 It is a schematic circuit structure diagram of the live warning device of the high-voltage switch cabinet of the present utility model;

[0012] Figure 2 It is a schematic front-side structure diagram of the integrated housing of the present utility model;

[0013] Figure 3 It is a schematic rear-side structure diagram of the integrated housing of the present utility model;

[0014] Figure 4 It is a schematic top-side structure diagram of the integrated housing of the present utility model.

[0015] In the figure:

[0016] 1. Radar human body induction device; 2. Live display device with relay function; 3. Live display device with relay function; 4. Alarm speaker; 5. Alarm indicator light; 6. Integrated housing; 21. Upper contact live indicator light; 22. Upper contact induction wire interface; 31. Lower contact live indicator light; 32. Lower contact induction wire interface. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0018] Embodiment: As Figure 1 shown in the live warning device for high-voltage switchgear of electric power, which includes: a radar human body induction device 1, a live display device 2 with relay function, a live display device 3 with relay function, an alarm speaker 4 and an alarm indicator light 5. The live display devices 2 and 3 with relay function are connected in parallel. Among them, the AC positive terminals of the live display devices 2 and 3 with relay function are connected, the AC negative terminals are connected, K1 and K3 are connected, K2 and K4 are connected. The connecting wires of the two AC positive terminals are the positive pole of the working power supply, and the connecting wires of the two AC negative terminals are the negative pole of the working power supply; the alarm speaker 4 and the alarm indicator light 5 are connected in parallel, and one end is connected in series between K2 and K4 of the two live display devices with relay function, and the other end is connected to the negative pole of the working power supply; the L1 terminal of the radar human body induction device 1 is connected to the positive pole of the working power supply, the N terminal is connected to the negative pole of the working power supply, and the L2 terminal is connected in series between K1 and K3 of a pair of live display devices with relay function; the upper and lower contacts of the high-voltage switchgear of electric power are equipped with live induction terminals, and a pair of live display devices with relay function are connected to the live induction terminals.

[0019] As Figures 2 to 4 shown, the alarm speaker 4 and the alarm indicator light 5 are arranged side by side on the front side of the integrated housing 6. A pair of live display devices with relay function are located inside the integrated housing. The radar human body induction device 1 is arranged on the lower side of the integrated housing 6, and the positive and negative interfaces of the working power supply 7 are arranged on the rear side of the integrated housing 6.

[0020] The upper contact live indicator light 21 of the live display device 2 with relay function and the lower contact live indicator light 31 of the live display device 3 with relay function are located on the front side of the integrated housing 6. The upper contact induction wire interface 22 of the live display device 2 with relay function and the lower contact induction wire interface 32 of the live display device 3 with relay function are located on the rear side of the integrated housing 6.

[0021] The terminals L1 and N of the radar human body induction device 1 are the working power supply terminals. When it senses that a human body enters, the terminals L1 and L2 of the radar human body induction device 1 are conducted. The AC positive terminal and the AC negative terminal of the live display device with relay function are the working power supply terminals.

[0022] The upper and lower contacts of the high-voltage switchgear of electric power are equipped with live induction terminals. The output wires of the live induction terminals are connected to a pair of live display devices with relay function. If the live induction terminals are charged, the K1 and K2 (K3 and K4) relays of the live display device with relay function act, the circuit is conducted, and the upper contact live indicator light 21 (the lower contact live indicator light 31 of the switchgear). When the radar human body induction device 1 senses that a human body enters, the circuit is conducted, the alarm speaker 4 gives an alarm sound, the alarm sound is "The equipment is charged, do not enter", and the alarm warning light 5 flashes to give a warning.

[0023] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A live alarm device for a high-voltage power switch cabinet, characterized in that: include: A radar human body sensing device, a pair of live display devices with relay functions, an alarm speaker and an alarm indicator light, wherein the pair of live display devices with relay functions are connected in parallel, wherein the AC positive terminal is the positive terminal of the working power supply, and the AC negative terminal is the negative terminal of the working power supply; the alarm speaker and the alarm indicator light are connected in parallel, one end of which is connected in series between K2 and K4 of a pair of live display devices with relay functions, and the other end is connected to the negative terminal of the working power supply; the L1 end of the radar human body sensing device is connected to the positive terminal of the working power supply, the N end is connected to the negative terminal of the working power supply, and the L2 end is connected in series between K1 and K3 of a pair of live display devices with relay functions; The upper and lower contacts of the electric high-voltage switchgear are equipped with live sensing terminals, and a pair of live display devices with relay functions are connected to the live sensing terminals.

2. The live alarm device for electric high-voltage switch cabinet according to claim 1 is characterized in that: It also includes an integrated shell, an alarm speaker and an alarm indicator light are arranged side by side on the front side of the integrated shell, a pair of power display devices with relay functions are located inside the integrated shell, a radar human body sensing device is arranged on the upper side of the integrated shell, and the rear side of the integrated shell is provided with positive and negative interfaces of the working power supply.

3. The live alarm device for electric high-voltage switch cabinet according to claim 2 is characterized in that: The pair of upper contact power indicator lights and lower contact power indicator lights with relay function power display devices are located on the front side of the integrated shell, and the pair of upper contact induction line interfaces and lower contact induction line interfaces with relay function power display devices are located on the rear side of the integrated shell.

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