CN210866795U - Totally-enclosed high-low voltage switch cabinet - Google Patents
Totally-enclosed high-low voltage switch cabinet Download PDFInfo
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- CN210866795U CN210866795U CN201922250852.7U CN201922250852U CN210866795U CN 210866795 U CN210866795 U CN 210866795U CN 201922250852 U CN201922250852 U CN 201922250852U CN 210866795 U CN210866795 U CN 210866795U
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- switch
- cabinet door
- power supply
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Abstract
The utility model discloses a totally closed high-low voltage switch cabinet relates to the cubical switchboard field, including the cabinet body and cabinet door, still including being used for detecting the personnel detection device that has operating personnel in order to export wake-up signal before the cabinet door, personnel detection device electric connection responds to the first switch circuit that wake-up signal switched on, sets up the travel switch who switches on when the cabinet door is opened between the cabinet body and the cabinet door, and travel switch and switch circuit all concatenate in the supply circuit of light in the cabinet. When opening the cabinet door, operating personnel stands before the cabinet door, personnel detection device detects the awakening signal that operating personnel output corresponds, first switch circuit receives awakening signal and then switches on, if operating personnel opens the cabinet door this moment, the travel switch that sets up on the cabinet door switches on along with the cabinet door is opened, first switch circuit switches on with travel switch, and then for the power supply of cabinet door light, realize the illumination automatically, the circuit is simple and practical, when operating personnel left, the light extinguishes in the cabinet, save stand-by power supply's electric quantity.
Description
Technical Field
The utility model relates to a cubical switchboard, more specifically say, it relates to a totally closed high-low voltage switch cabinet.
Background
The switch cabinet is an electrical device, the external line of the switch cabinet 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 meters, automatic controls, magnetic switches of motors, various alternating current contactors, and the like, some of which are also provided with high-voltage chambers and low-voltage chamber switch cabinets, and high-voltage buses, such as power plants, and some of which are also provided with low-frequency load shedding for keeping main equipment. The main function of the system is to open and close, control and protect the electric equipment in the process of generating, transmitting, distributing and converting electric energy in the power system.
Electrical components in the switch cabinet need often maintain and repair, and because the light of cubical switchboard environment is dim after operating personnel opens the cabinet door, operating personnel need use external light sources such as flashlight to shine to the internal of cabinet, and operating personnel throws light on in one hand and the one hand use tools of another hand of illumination was maintained very inconveniently this moment, leads to work efficiency low.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a totally closed high-low voltage switch cabinet has the automatic illumination when the cabinet door is opened to operating personnel, need not extra operation, more convenient advantage.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a totally closed high-low voltage switch cabinet, includes the cabinet body and cabinet door, still including being used for detecting the personnel detection device that has operating personnel in order to export wake-up signal before the cabinet door, personnel detection device electric connection responds to the first switch circuit that wake-up signal switched on, set up the travel switch who switches on when the cabinet door is opened between the cabinet body and the cabinet door, travel switch and switch circuit all concatenate in the power supply circuit of light in the cabinet.
Adopt above-mentioned technical scheme, when opening the cabinet door, operating personnel stands before the cabinet door, personnel detection device detects the awakening signal that operating personnel output corresponds, first switch circuit receives awakening signal and then switches on, if operating personnel opens the cabinet door this moment, the travel switch that sets up on the cabinet door switches on along with the cabinet door is opened, first switch circuit switches on with travel switch, and then for the power supply of cabinet door light, realize the illumination automatically, the circuit is simple and practical, and when operating personnel left, the light extinguishes in the cabinet, save stand-by power supply's electric quantity.
Further, the personnel detection device is a pyroelectric infrared sensor.
Further, the first switch circuit is a triode switch circuit.
And a second switch circuit which is only switched on under the power-off state of the switch cabinet power supply is also connected in series between the standby power supply and the illuminating lamp in the cabinet.
By adopting the technical scheme, the lighting lamp in the cabinet is powered by the standby power supply, the cabinet door is opened under the state that the power supply of the switch cabinet is cut off, the lighting is still supported, and the operation safety is improved.
Furthermore, the switch cabinet power supply is connected with an alarm device after being connected with the travel switch in series.
By adopting the technical scheme, the switch cabinet power supply is connected with the alarm device after being connected with the travel switch in series, when the switch cabinet power supply is not disconnected, the cabinet door is opened at the moment, the travel switch is conducted, the alarm device gives an alarm after being electrified, the operator is prompted to carry out hot-line operation, and the safety is further improved.
Further, the alarm device is a buzzer.
Further, the second switch circuit is a field effect transistor switch circuit.
Further, the standby power supply is a storage battery.
Compared with the prior art, the utility model has the advantages that:
1. when an operator opens the cabinet door, the standby power supply supplies power to the illuminating lamp in the cabinet, so that illumination is automatically realized, the operator does not need to illuminate in other modes, and the convenience of operation is improved;
2. after the operator leaves the cabinet door, the power is automatically cut off, so that the electric quantity of the standby power supply is saved;
3. when the switch cabinet power supply is not disconnected, the cabinet door is opened, automatic alarm is given, and the operation safety is improved.
Drawings
Fig. 1 is a schematic diagram of the medium-and low-voltage totally-enclosed switch cabinet of the utility model;
fig. 2 is a circuit schematic diagram of the fully-enclosed high-low voltage switch cabinet of the utility model.
Detailed Description
Examples
The utility model provides a totally closed high-low voltage switch cabinet, includes the cabinet body and cabinet door, refer to fig. 1 and fig. 2, still including setting up the personnel detection device on the cabinet door, personnel detection device is used for detecting that there is operating personnel in order to export wake-up signal before the cabinet door, and personnel detection device electric connection responds to the first switch circuit 6 that wake-up signal switched on, still sets up the travel switch 4 that switches on when the cabinet door is opened on the cabinet body, travel switch 4 and switch circuit all concatenate in the power supply circuit of light 8 in the cabinet.
Wherein, personnel detection device is pyroelectric infrared sensor, sends specific infrared light through detecting human body temperature and confirms whether exist before the cabinet door, when having operating personnel before the cabinet door, the awakening signal that the output corresponds, and the position of cabinet door is opened for orientation operating personnel to the concrete position that pyroelectric infrared sensor set up.
The first switch circuit 6 electrically connected with the human body detection device 7 adopts a triode switch circuit, and in order to enhance the awakening signal, an amplifying circuit (not shown in the figure) is connected between the human body detection device 7 and the triode switch circuit, the base electrode of the triode VT1 is connected with the pyroelectric sensor to receive the awakening signal, the collector electrode of the triode VT1 is connected with the travel switch 4, and the emitter electrode of the triode VT1 is connected with the rear of the illuminating lamp 8 in the cabinet in series and then is grounded.
The travel switch 4 is provided on the cabinet, and the installation method is disclosed in patent application No. 201510821836.2. Travel switch 4 receives triggering of cabinet door to switch on or break off, specifically switches on when the cabinet door is opened, and the disconnection is when the cabinet door is closed to in order to support other demands of whole circuit, in this embodiment, travel switch 4 adopts for double-pole double-throw type.
Still including being used for giving the stand-by power supply 1 of 8 supplies power of light in the cabinet, still having concatenated the second switch circuit 2 that only switches on under the 3 outage condition of cubical switchboard power between stand-by power supply 1 and the light 8 in the cabinet, when the cubical switchboard outage, second switch circuit 2 switches on, and then inserts the power supply of standby unit access circuit, and at the cubical switchboard power 3 during operation, second switch circuit 2 breaks off, stand-by power supply 1 does not insert. In this embodiment, the standby power supply 1 is a storage battery, the second switch circuit 2 is a FET switch circuit, and the gate of the FET is connected to the switch cabinet power supply 3.
In addition, in another path, the switch cabinet power supply 3 is connected with an alarm device 5 after being connected with the travel switch 4 in series, the alarm device 5 is a buzzer, and when the switch cabinet power supply 3 is not disconnected, if the cabinet door is opened, the alarm device 5 gives an alarm.
Source flow and process for this embodiment:
the first state: the switch cabinet power supply 3 is not disconnected, the grid electrode of the field effect transistor FET is connected with high voltage, the field effect transistor FET is turned off, and then the power supply circuit of the lighting lamp 8 in the cabinet is broken, so that lighting cannot be performed.
Meanwhile, the switch cabinet power supply 3 is not disconnected, the switch cabinet is connected with the travel switch 4, the path of the buzzer H supplies power normally, the cabinet door is opened at the moment, the travel switch 4 is closed and conducted, and the buzzer H starts to give an alarm to prompt an operator of electrification danger.
And a second state: the switch cabinet power supply 3 is disconnected, and the power supply circuit of the buzzer H is disconnected.
And the grid of field effect transistor FET is connected the low-voltage, and field effect transistor FET switches on, and the power supply circuit of light 8 normally supplies power in the cabinet promptly, and operating personnel stands and opens the cabinet door before the cabinet door this moment, and pyroelectric sensor detects operating personnel back output wake-up signal, and triode VT1 switches on, if the cabinet door is opened, travel switch 4 is closed, and lighting device gets to the electricity in the cabinet and begins the illumination. The manual operation of operators is not needed, and the safety of the switch cabinet is improved.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a totally closed high-low voltage switch cabinet, includes the cabinet body and cabinet door, characterized by: still including being used for detecting the personnel detection device that has operating personnel in order to export awakening signal before the cabinet door, personnel detection device electric connection responds to the first switch circuit that awakening signal switched on, set up the travel switch who switches on when the cabinet door is opened between the cabinet body and the cabinet door, travel switch and switch circuit all concatenate in the power supply circuit of light in the cabinet.
2. A totally enclosed high and low voltage switchgear cabinet as claimed in claim 1, wherein: the personnel detection device is a pyroelectric infrared sensor.
3. A totally enclosed high and low voltage switchgear cabinet as claimed in claim 1, wherein: the first switch circuit is a triode switch circuit.
4. A totally enclosed high and low voltage switchgear cabinet as claimed in claim 1, wherein: the emergency power supply is used for supplying power to the illuminating lamp in the cabinet, and a second switch circuit which is only switched on in a power-off state of the switch cabinet power supply is connected between the emergency power supply and the illuminating lamp in the cabinet in series.
5. The totally-enclosed high-low voltage switch cabinet according to claim 4, characterized in that: the switch cabinet power supply is connected with an alarm device after being connected with the travel switch in series.
6. A totally enclosed high and low voltage switchgear cabinet as claimed in claim 5, wherein: the alarm device is a buzzer.
7. The totally-enclosed high-low voltage switch cabinet according to claim 4, characterized in that: the second switch circuit is a field effect transistor switch circuit.
8. The totally-enclosed high-low voltage switch cabinet according to claim 4, characterized in that: the standby power supply is a storage battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922250852.7U CN210866795U (en) | 2019-12-12 | 2019-12-12 | Totally-enclosed high-low voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922250852.7U CN210866795U (en) | 2019-12-12 | 2019-12-12 | Totally-enclosed high-low voltage switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210866795U true CN210866795U (en) | 2020-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922250852.7U Active CN210866795U (en) | 2019-12-12 | 2019-12-12 | Totally-enclosed high-low voltage switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210866795U (en) |
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2019
- 2019-12-12 CN CN201922250852.7U patent/CN210866795U/en active Active
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