CN106329329A - Protecting box for outdoor transformers - Google Patents

Abstract

An outdoor transformer protection box belongs to the field of transformer protection, which solves the problem that the existing outdoor transformer protection box does not have the functions of real-time detection and control of the humidity of the air inside the protection box, lighting and anti-theft functions. The outdoor transformer protective box of the present invention can detect and control the temperature of the air inside the protective box in real time through the cooperation of the temperature detection unit, the control unit and the cooling unit. Through the cooperative work of the humidity detection unit, the control unit and the dehumidification unit, the humidity of the air inside the protective box can be detected and controlled in real time. When the door of the protective box is opened and the external light intensity is insufficient, the LED light is turned on to provide illumination for maintenance personnel. When the door of the protective box is opened, the 3G standard wireless pinhole camera is turned on to take pictures of the person who opened the door, and wirelessly transmit the captured images to the mobile phone of the monitor. The outdoor transformer protection box of the present invention is especially suitable for the protection of outdoor transformers.

Description

An outdoor transformer protection box

technical field

The invention relates to an outdoor transformer protection box, which belongs to the field of transformer protection.

Background technique

Existing outdoor transformer protection boxes usually only have the function of real-time detection and control of the temperature of the air inside the protection box, but do not have the functions of real-time detection and control of the humidity, lighting and anti-theft of the air inside the protection box.

Contents of the invention

In order to solve the problem that the existing outdoor transformer protection box does not have the functions of real-time detection and control of the humidity of the air inside the protection box, lighting and anti-theft functions, the invention proposes an outdoor transformer protection box.

The outdoor transformer protection box of the present invention includes a box body, a fixing unit, a temperature detection unit 1, a humidity detection unit 2, a control unit 3, a cooling unit 4, a dehumidification unit 5, a lighting unit 6, a camera unit 7 and a power supply unit 8, The fixing unit, temperature detection unit 1, humidity detection unit 2, control unit 3, cooling unit 4, dehumidification unit 5, lighting unit 6, camera unit 7 and power supply unit 8 are all arranged inside the box;

The fixing unit is used to fix the transformer inside the box;

The temperature detection unit 1 is used to detect the temperature of the air inside the box in real time, and sends the detected temperature signal to the control unit 3, and the humidity detection unit 2 is used to detect the humidity of the air inside the box in real time, and sends the detected humidity signal to the control unit 3. Send to control unit 3;

The control unit 3 is used to convert the temperature signal it receives into a temperature value, and compare the converted temperature value with the preset temperature range, and when the converted temperature value reaches the upper limit value of the preset temperature range, control Unit 3 controls the cooling unit 4 to turn on, and when the converted temperature value reaches the lower limit of the preset temperature range, the control unit 3 controls the cooling unit 4 to turn off, and the control unit 3 is also used to convert the humidity signal it receives into humidity value, and compare the converted humidity value with the preset humidity range, when the converted humidity value reaches the upper limit of the preset humidity range, the control unit 3 controls the dehumidification unit 5 to open, when the converted humidity value reaches When the lower limit value of the preset humidity range is reached, the control unit 3 controls the dehumidification unit 5 to close;

The lighting unit 6 includes a first normally open micro switch, a photosensitive module and an LED lamp;

When the door of the protective box is in the open state, the first normally open micro switch is closed;

The photosensitive module includes a photoresistor, a reference resistor, a comparator and a relay. The resistance of the photoresistor is inversely proportional to the intensity of the incident light. The comparator is used to compare the voltage across the photoresistor and the voltage across the reference resistor. When the former is greater than the latter , the normally open contact of the relay is closed;

When the first normally open micro switch and the normally open contacts of the relay are closed, the LED light is turned on;

The camera unit 7 includes a second normally open micro switch and a 3G standard wireless pinhole camera;

When the door of the protective box is in the open state, the second normally open micro switch is closed, the 3G standard wireless pinhole camera is turned on, and the image captured by it is wirelessly transmitted to the mobile phone of the monitor;

The power supply unit 8 is used to provide the temperature detection unit 1 , the humidity detection unit 2 , the control unit 3 , the cooling unit 4 , the dehumidification unit 5 , the lighting unit 6 and the camera unit 7 with voltages required for operation simultaneously.

The outdoor transformer protective box of the present invention can detect and control the humidity of the air inside the protective box in real time through the cooperation of the humidity detection unit, the control unit and the dehumidification unit; when the door of the protective box is opened and the external light intensity is insufficient, The LED light is turned on, which can provide lighting for maintenance personnel; when the door of the protective box is opened, the 3G standard wireless pinhole camera starts to work, takes pictures of the person who opens the door, and wirelessly transmits the captured images to the mobile phone of the monitor. When the monitor finds that the person who opens the door is not a staff member of the unit, he can assign relevant protective personnel nearby to investigate the situation, which has a certain anti-theft function and can recover losses in time.

Description of drawings

In the following, the outdoor transformer protection box of the present invention will be described in more detail based on the embodiments and with reference to the accompanying drawings, wherein:

Fig. 1 is a schematic diagram of the electrical connection relationship among the various functional units of the outdoor transformer protection box described in the first embodiment, and 9 is a monitor's mobile phone.

In the figures, the same parts are given the same reference numerals. The drawings are not to scale.

detailed description

The outdoor transformer protective box of the present invention will be further described below in conjunction with the accompanying drawings.

Embodiment 1: This embodiment will be described in detail below in conjunction with FIG. 1 .

The outdoor transformer protection box described in this embodiment includes a box body, a fixing unit, a temperature detection unit 1, a humidity detection unit 2, a control unit 3, a cooling unit 4, a dehumidification unit 5, a lighting unit 6, a camera unit 7 and a power supply unit 8 , the fixing unit, temperature detection unit 1, humidity detection unit 2, control unit 3, cooling unit 4, dehumidification unit 5, lighting unit 6, camera unit 7 and power supply unit 8 are all arranged inside the box;

The fixing unit is used to fix the transformer inside the box;

The temperature detection unit 1 is used to detect the temperature of the air inside the box in real time, and sends the detected temperature signal to the control unit 3, and the humidity detection unit 2 is used to detect the humidity of the air inside the box in real time, and sends the detected humidity signal to the control unit 3. Send to control unit 3;

The control unit 3 is used to convert the temperature signal it receives into a temperature value, and compare the converted temperature value with the preset temperature range, and when the converted temperature value reaches the upper limit value of the preset temperature range, control Unit 3 controls the cooling unit 4 to turn on, and when the converted temperature value reaches the lower limit of the preset temperature range, the control unit 3 controls the cooling unit 4 to turn off, and the control unit 3 is also used to convert the humidity signal it receives into humidity value, and compare the converted humidity value with the preset humidity range, when the converted humidity value reaches the upper limit of the preset humidity range, the control unit 3 controls the dehumidification unit 5 to open, when the converted humidity value reaches When the lower limit value of the preset humidity range is reached, the control unit 3 controls the dehumidification unit 5 to close;

The lighting unit 6 includes a first normally open micro switch, a photosensitive module and an LED lamp;

When the door of the protective box is in the open state, the first normally open micro switch is closed;

The photosensitive module includes a photoresistor, a reference resistor, a comparator and a relay. The resistance of the photoresistor is inversely proportional to the intensity of the incident light. The comparator is used to compare the voltage across the photoresistor and the voltage across the reference resistor. When the former is greater than the latter , the normally open contact of the relay is closed; when the first normally open microswitch and the normally open contacts of the relay are closed, the LED light is turned on; the camera unit 7 includes a second normally open microswitch and a 3G standard wireless pin hole camera;

When the door of the protective box is in the open state, the second normally open micro switch is closed, the 3G standard wireless pinhole camera is turned on, and the image captured by it is wirelessly transmitted to the mobile phone of the monitor;

The power supply unit 8 is used to simultaneously provide the temperature detection unit 1 , the humidity detection unit 2 , the control unit 3 , the cooling unit 4 , the dehumidification unit 5 , the lighting unit 6 and the camera unit 7 with voltages required for operation.

Embodiment 2: This embodiment further limits the outdoor transformer protection box described in Embodiment 1.

In the outdoor transformer protection box described in this embodiment, the cooling unit 4 is a semiconductor refrigerator.

The semiconductor refrigerator is a device that uses the thermo-electric effect of the semiconductor to obtain cooling capacity. It has many advantages such as no noise, no vibration, no refrigerant, small size and light weight, and it is reliable in operation, easy to operate, and easy to refrigerate. Quantity adjustment.

Embodiment 3: This embodiment further limits the outdoor transformer protection box described in Embodiment 1.

In the outdoor transformer protection box described in this embodiment, the reference resistance is a sliding rheostat.

In this embodiment, the sliding rheostat is used as the reference resistor, and the closing condition of the normally open contact of the relay can be changed indirectly by changing the effective resistance value of the sliding rheostat, thereby changing the turning-on condition of the LED lamp.

Although the invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely illustrative of the principles and application of the invention. It is therefore to be understood that numerous modifications may be made to the exemplary embodiments and that other arrangements may be devised without departing from the spirit and scope of the invention as defined by the appended claims. It shall be understood that different dependent claims and features described herein may be combined in a different way than that described in the original claims. It will also be appreciated that features described in connection with individual embodiments can be used in other described embodiments.

Claims (3)

1. an outdoor transformer protective housing, it is characterised in that described protective housing includes casing, fixed cell, temperature detection list Unit (1), humidity detection unit (2), control unit (3), temperature reducing unit (4), Dehumidifying element (5), lighting unit (6), shooting list Unit (7) and power supply unit (8), fixed cell, temperature detecting unit (1), humidity detection unit (2), control unit (3), cooling Unit (4), Dehumidifying element (5), lighting unit (6), image unit (7) and power supply unit (8) are arranged at box house；

Fixed cell is for being fixed on box house by transformator；

Temperature detecting unit (1) is for the temperature of detection box house air in real time, and is sent extremely by the temperature signal detected Control unit (3), humidity detection unit (2) is for the humidity of detection box house air in real time, and the humidity letter that will detect Number send to control unit (3)；

Control unit (3) is converted to temperature value for the temperature signal received, and by the temperature value after conversion with default Temperature range compares, and when the temperature value after conversion arrives the higher limit of preset temperature range, control unit (3) controls fall Temperature unit (4) is opened, and when the temperature value after conversion arrives the lower limit of preset temperature range, control unit (3) controls cooling Unit (4) is closed, and the moisture signal that control unit (3) is additionally operable to be received is converted to humidity value, and will wet after conversion Angle value compares with default humidity range, when the humidity value after conversion arrives the higher limit presetting humidity range, controls single Unit (3) controls Dehumidifying element (5) and opens, when the humidity value after conversion arrives the lower limit presetting humidity range, and control unit (3) control Dehumidifying element (5) to close；

Lighting unit (6) includes the first open type microswitch, photosensitive module and LED；

When the chamber door of protective housing is in opening, the first open type microswitch Guan Bi；

Photosensitive module includes photoconductive resistance, reference resistance, comparator and relay, the resistance of photoconductive resistance and the light intensity of incident illumination Being inversely proportional to, comparator is for comparing voltage and the voltage at reference resistance two ends at photoconductive resistance two ends, when the former is more than the latter, The normally opened contact Guan Bi of relay；

When the normally opened contact of the first open type microswitch and relay all closes, LED is opened；

Image unit (7) includes the second open type microswitch and the wireless pinhole cameras of 3G standard；

When the chamber door of protective housing is in opening, the second open type microswitch Guan Bi, pinhole cameras that 3G standard is wireless Open, and the image wireless transmission photographed is to the mobile phone of supervisor；

Power supply unit (8) is temperature detecting unit (1), humidity detection unit (2), control unit (3), temperature reducing unit for simultaneously (4), Dehumidifying element (5), lighting unit (6) and image unit (7) provide work required voltage.

2. outdoor transformer protective housing as claimed in claim 1, it is characterised in that temperature reducing unit (4) is semiconductor cooler.

3. outdoor transformer protective housing as claimed in claim 1, it is characterised in that reference resistance is slide rheostat.