Switch cabinet temperature measurement early warning device for intelligent power distribution network

Abstract

The utility model provides a switch cabinet temperature measurement early warning device for an intelligent power distribution network, which comprises a protection unit, the top of the protection unit is provided with an ash removal unit, the protection unit comprises a switch cabinet body, the top of the inner cavity of the switch cabinet body is provided with a through groove, and the top of the inner cavity of the switch cabinet body is fixedly connected with a positive and negative rotation fan; according to the utility model, through the arrangement of the protection unit, the switch cabinet body can support and protect internal power distribution elements needing to be protected, and the temperature and humidity in the switch cabinet body are monitored in cooperation with the PLC controller, so that when internal environment data are abnormal, an alarm is given in time to remind personnel of maintenance, and the maintenance efficiency is improved. Meanwhile, the positive and negative rotation fan is matched with the ash removal unit to accelerate external air to enter the inner cavity of the switch cabinet body, so that the heat dissipation effect of the inner cavity of the switch cabinet body is improved, the internal and external temperature difference is reduced, and condensate water caused by temperature difference between external environment temperature change and the interior of the switch cabinet body is prevented; therefore, the protection effect on the power distribution elements in the switch cabinet body is improved.

Description

Technical Field

[0001] The utility model belongs to the field of switch cabinets, in particular to a temperature measurement and early warning device for a switch cabinet used in an intelligent power distribution network. Background Art

[0002] Switchgear is the common name for metal-enclosed switchgear, which refers to switchgear that is completely enclosed by a metal shell except for the incoming and outgoing lines. As a complete set of equipment for receiving and distributing electric energy and monitoring and protecting power grids, it is widely used in power plants, substations, airports, docks, industrial and mining enterprises, commercial and civil buildings and other indoor and outdoor power supply systems of corresponding voltage levels;

[0003] According to the Chinese patent application number: 202021204966.4, a temperature measurement and early warning device for a switch cabinet for a smart distribution network is disclosed, which belongs to the field of switch cabinet security technology. A first groove is opened on the four sides of the base, and a first adsorption block is fixedly sleeved in the first groove. A second groove is opened at the bottom of the base, and a second adsorption block is fixedly sleeved in the second groove. A protective shell is fixedly connected to the surface of the base. The protective shell is cylindrical in shape, and an installation room is provided in the protective shell. A camera is fixedly installed in the installation room. The radar induction switch provided in the temperature measurement and early warning device for the switch cabinet for the smart distribution network enables the alarm to have the function of automatic opening and closing, and the provided camera facilitates the staff to remotely monitor the surrounding environment of the switch cabinet in real time, and the upper cover provided enables the protective device to have ventilation and heat dissipation while also having a waterproof function, and the provided base facilitates the protective device to be quickly fixed to different positions on the switch cabinet, and facilitates the later maintenance of internal components;

[0004] The existing technology has better protected the switch cabinet by setting up cameras and sensors. However, for the distribution equipment that needs to be hung on the outdoor wall, the existing appearance is inconvenient to hang and occupies a large space. At the same time, in the outdoor environment, it is easy for condensation to appear inside due to the temperature difference between inside and outside, which can easily affect the use of internal distribution components.

[0005] In summary, the utility model therefore provides a temperature measurement and early warning device for a switch cabinet for an intelligent distribution network to solve the above-mentioned problems. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] A temperature measurement and early warning device for a switch cabinet for an intelligent distribution network comprises a protection unit, a dust cleaning unit is arranged on the top of the protection unit, the protection unit comprises a switch cabinet body, a through slot is provided on the top of the inner cavity of the switch cabinet body, and a forward and reverse rotating fan is fixedly connected thereto, a PLC controller is fixedly connected to one side of the inner cavity of the switch cabinet body, the dust cleaning unit comprises a rain shield, a connecting frame is fixedly connected to the bottom of the rain shield, and air inlet slots are provided on both sides of the connecting frame, the bottom of the connecting frame is fixedly connected to the switch cabinet body, a filter is fixedly connected to the top of the air inlet slot, a scraper is movably connected to the top of the filter, and the input end of the forward and reverse rotating fan is electrically connected to the output end of the PLC controller.

[0008] Furthermore, in the utility model, the protection unit also includes an air outlet frame, which is fixedly connected to the upper and lower ends on both sides of the switch cabinet body and is connected to the inner cavity of the switch cabinet body. Both sides of the back of the switch cabinet body are fixedly connected with mounting frames, and the mounting frames are fixed to the external wall by expansion screws.

[0009] Furthermore, in the utility model, the protection unit also includes a wind speed sensor, which is fixedly connected to the upper end of the inner wall of the switch cabinet body and below the forward and reverse rotating fans. A temperature sensor and a humidity sensor are respectively fixedly connected to the two sides of the lower end of the inner cavity of the switch cabinet body. The output ends of the wind speed sensor, temperature sensor and humidity sensor are all electrically connected to the input end of the PLC controller.

[0010] Furthermore, in the utility model, the protection unit also includes an alarm, which is fixedly connected to one side of the switch cabinet body, and the input end of the alarm is electrically connected to the output end of the PLC controller.

[0011] Furthermore, in the utility model, the cleaning unit also includes a threaded rod, one end of which is movably connected to the inner wall of the rain shield, and passes through the scraper and is threadedly connected to the inner cavity of the scraper. A motor is fixedly connected to one side of the inner cavity of the rain shield, and the output shaft of the motor is transmission-connected to one end of the threaded rod, and the input end of the motor is electrically connected to the output end of the PLC controller.

[0012] Furthermore, in the utility model, the dust cleaning unit also includes a limiting rod, the number of the limiting rods is two, the two limiting rods are respectively fixedly connected to the inner wall of the rain shield, and one end of the limiting rod passes through the scraper and is movably connected to the inner wall of the scraper.

[0013] Beneficial effects: The utility model has the following beneficial effects:

[0014] The utility model provides a protection unit, wherein the switch cabinet body can support and protect the internal distribution components that need to be protected, and cooperates with the PLC controller to monitor the temperature and humidity inside the switch cabinet body, so that when the internal environmental data is abnormal, an alarm can be issued in time to remind personnel to repair. At the same time, the forward and reverse fans cooperate with the dust cleaning unit to accelerate the entry of external air into the inner cavity of the switch cabinet body, thereby improving the heat dissipation effect of the inner cavity of the switch cabinet body and reducing the temperature difference between the inside and the outside, preventing the temperature difference between the switch cabinet body and the temperature change of the external environment from causing condensation water, thereby improving the protection effect of the internal distribution components of the switch cabinet body. The dust cleaning unit can cooperate with the forward and reverse fans to intercept air, and cooperate with the protection unit to monitor the wind speed of the forward and reverse fans, so as to automatically remove accumulated dust to prevent dust from clogging and reducing ventilation efficiency. In addition, the equipment can maintain the square design required for the switch cabinet body, is suitable for hanging on various walls in outdoor environments, does not occupy a large additional space, and is convenient for installation and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the utility model in which the mounting frame and the switch cabinet body are separated;

[0017] Figure 3 It is a schematic structural diagram of the utility model in which the rain shield and the connecting frame are in a separated state;

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the scraper of the utility model.

[0019] In the figure:

[0020] 1. Protection unit; 11. Switch cabinet body; 12. Forward and reverse fan; 13. PLC controller; 14. Wind speed sensor; 15. Temperature sensor; 16. Humidity sensor; 17. Air outlet frame; 18. Alarm; 19. Mounting frame; 2. Dust cleaning unit; 21. Rain shield; 22. Connecting frame; 23. Air inlet slot; 24. Filter; 25. Scraper; 26. Threaded rod; 27. Motor; 28. Limit rod. DETAILED DESCRIPTION

[0021] In order to better understand the technical content of the utility model, specific embodiments are cited and described as follows in conjunction with the accompanying drawings. In this disclosure, various aspects of the utility model are described with reference to the accompanying drawings, and many illustrative embodiments are shown in the accompanying drawings. The embodiments of the present disclosure are not necessarily defined to include all aspects of the utility model. It should be understood that the various concepts and embodiments introduced above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in the utility model are not limited to any implementation method. In addition, some aspects disclosed in the utility model can be used alone, or used in any appropriate combination with other aspects disclosed in the utility model.

[0022] Example 1

[0023] like Figure 1-4 As shown, it is the first embodiment of the utility model, which provides a temperature measurement and early warning device for a switch cabinet for an intelligent distribution network, including a protection unit 1, a cleaning unit 2 is arranged on the top of the protection unit 1, the protection unit 1 includes a switch cabinet body 11, a through groove is opened on the top of the inner cavity of the switch cabinet body 11, and a forward and reverse fan 12 is fixedly connected, and a PLC controller 13 is fixedly connected to one side of the inner cavity of the switch cabinet body 11, the cleaning unit 2 includes a rain shield 21, a connecting frame 22 is fixedly connected to the bottom of the rain shield 21, and air inlet grooves 23 are opened on both sides of the connecting frame 22, the bottom of the connecting frame 22 is fixedly connected to the switch cabinet body 11, a filter screen 24 is fixedly connected to the top of the air inlet groove 23, a scraper 25 is movably connected to the top of the filter screen 24, and the input end of the forward and reverse fan 12 is electrically connected to the output end of the PLC controller 13.

[0024] like Figure 1-3 As shown, the protection unit 1 can be used to support and fix the distribution components that need to be protected, and the switch cabinet body 11 can be used to protect them. The forward and reverse fans 12 accelerate the flow of air to prevent a large temperature difference between the switch cabinet body 11 and the external environment, thereby preventing the occurrence of condensed water and improving the heat dissipation effect. The dust intercepted during ventilation can be removed by the cleaning unit 2, so that the equipment can be operated and used outdoors for a long time.

[0025] Example 2

[0026] Reference Figure 1-2 , which is the second embodiment of the utility model, and this embodiment is based on the previous embodiment.

[0027] In this embodiment, the protection unit 1 also includes an air outlet frame 17, which is fixedly connected to the upper and lower ends of both sides of the switch cabinet body 11 and is connected to the inner cavity of the switch cabinet body 11. Both sides of the back of the switch cabinet body 11 are fixedly connected with a mounting frame 19, and the mounting frame 19 is fixed to the external wall by expansion screws.

[0028] The protection unit 1 also includes a wind speed sensor 14, which is fixedly connected to the upper end of the inner wall of the switch cabinet body 11 and located below the forward and reverse rotating fan 12. A temperature sensor 15 and a humidity sensor 16 are fixedly connected to both sides of the lower end of the inner cavity of the switch cabinet body 11, respectively. The output ends of the wind speed sensor 14, the temperature sensor 15 and the humidity sensor 16 are all electrically connected to the input end of the PLC controller 13.

[0029] The protection unit 1 further includes an alarm 18 , which is fixedly connected to one side of the switch cabinet body 11 , and an input end of the alarm 18 is electrically connected to an output end of the PLC controller 13 .

[0030] like Figure 1-2 As shown, the air outlet frame 17 cooperates with the forward and reverse fan 12 as the air outlet of the switch cabinet body 11, and the forward and reverse fan 12 can be turned over when cleaning. At this time, the air outlet frame 17 is used as a temporary air inlet. The turning of the forward and reverse fan 12 can blow dust in the filter 24 in the opposite direction. The temperature sensor 15, the humidity sensor 16 and the wind speed sensor 14 respectively monitor the temperature, humidity and the blowing speed of the forward and reverse fan 12 inside the switch cabinet body 11, and cooperate with the alarm 18 to issue an alarm when abnormal values ​​appear.

[0031] Example 3

[0032] Reference Figure 3-4 , which is the third embodiment of the utility model, and this embodiment is based on the previous two embodiments.

[0033] In this embodiment, the cleaning unit 2 also includes a threaded rod 26, one end of which is movably connected to the inner wall of the rain shield 21, and passes through the scraper 25 and is threadedly connected to the inner cavity of the scraper 25. A motor 27 is fixedly connected to one side of the inner cavity of the rain shield 21, and the output shaft of the motor 27 is transmission-connected to one end of the threaded rod 26, and the input end of the motor 27 is electrically connected to the output end of the PLC controller 13.

[0034] The dust cleaning unit 2 further includes two limit rods 28 , which are respectively fixedly connected to the inner wall of the rain shield 21 , and one end of the limit rod 28 passes through the scraper 25 and is movably connected to the inner wall of the scraper 25 .

[0035] like Figure 3-4 As shown, starting the motor 27 can drive the threaded rod 26 to rotate, and drive the scraper 25 to move along the surface of the limit rod 28, and remove dust from the surface of the filter 24. During the process, the forward and reverse fan 12 can blow air in the opposite direction to the filter 24 to prevent dust from being squeezed into the inner cavity of the switch cabinet body 11.

[0036] When in use, firstly, the forward and reverse fan 12 is started through the PLC controller 13 to drive the air from the external environment to pass through the air inlet slot 23 and the filter 24 into the inner cavity of the switch cabinet body 11 and flow out through the air outlet frame 17, so as to accelerate the air circulation, keep the internal and external temperatures close, and prevent the occurrence of condensed water due to the temperature difference. The temperature sensor 15 and the humidity sensor 16 can monitor the temperature and humidity of the inner cavity of the switch cabinet body 11, and can start the alarm 18 to alarm when it exceeds the preset value of the PLC controller 13. The blowing speed of the forward and reverse fan 12 can be monitored by the wind speed sensor 14. When it is lower than the preset value, the forward and reverse fan 12 can be controlled by the PLC controller 13 to rotate in the opposite direction to blow air upward to the filter 24. At the same time, the PLC controller 13 starts the motor 27, and the output shaft of the motor 27 drives the threaded rod 26 to rotate and drives the scraper 25 to move along the limit rod 28, and cleans the surface of the filter 24, and cooperates with the reverse blowing of the forward and reverse fan 12 to complete the removal of dust on the top of the filter 24.

[0037] The standard parts used in this application document can all be purchased from the market and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented through simple programming by technicians in this field, which is common knowledge in the field. This application is mainly used to protect mechanical devices, so this application no longer explains the control method and circuit connection in detail.

[0038] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. A person with ordinary knowledge in the technical field to which the present invention belongs may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the definition of the claims.

Claims

1. A temperature measurement and early warning device for a switch cabinet for a smart distribution network, comprising a protection unit (1), characterized in that: A dust cleaning unit (2) is arranged on the top of the protection unit (1), and the protection unit (1) comprises a switch cabinet body (11), a through slot is provided on the top of the inner cavity of the switch cabinet body (11), and a forward and reverse rotating fan (12) is fixedly connected thereto, and a PLC controller (13) is fixedly connected to one side of the inner cavity of the switch cabinet body (11), and the dust cleaning unit (2) comprises a rain shield (21), a connecting frame (22) is fixedly connected to the bottom of the rain shield (21), and air inlet slots (23) are provided on both sides of the connecting frame (22), the bottom of the connecting frame (22) is fixedly connected to the switch cabinet body (11), a filter screen (24) is fixedly connected to the top of the air inlet slot (23), and a scraper (25) is movably connected to the top of the filter screen (24), and the input end of the forward and reverse rotating fan (12) is electrically connected to the output end of the PLC controller (13).

2. The temperature measurement and early warning device for a switch cabinet for a smart distribution network as claimed in claim 1, characterized in that: The protection unit (1) further comprises an air outlet frame (17), wherein the air outlet frame (17) is fixedly connected to the upper and lower ends of both sides of the switch cabinet body (11), and is communicated with the inner cavity of the switch cabinet body (11), and both sides of the back side of the switch cabinet body (11) are fixedly connected to mounting frames (19), and the mounting frames (19) are fixed to the external wall surface by expansion screws.

3. The temperature measurement and early warning device for a switch cabinet for a smart distribution network as claimed in claim 1, characterized in that: The protection unit (1) further comprises a wind speed sensor (14), the wind speed sensor (14) being fixedly connected to the upper end of the inner wall of the switch cabinet body (11) and located below the forward and reverse rotating fan (12), and a temperature sensor (15) and a humidity sensor (16) being fixedly connected to both sides of the lower end of the inner cavity of the switch cabinet body (11), respectively, and the output ends of the wind speed sensor (14), the temperature sensor (15) and the humidity sensor (16) are all electrically connected to the input end of the PLC controller (13).

4. The temperature measurement and early warning device for a switch cabinet for a smart distribution network as claimed in claim 1, characterized in that: The protection unit (1) further comprises an alarm (18), wherein the alarm (18) is fixedly connected to one side of the switch cabinet body (11), and an input end of the alarm (18) is electrically connected to an output end of the PLC controller (13).

5. The temperature measurement and early warning device for switch cabinets for smart distribution network according to claim 1, characterized in that: The dust cleaning unit (2) further comprises a threaded rod (26), one end of which is movably connected to the inner wall of the rain shield (21), and which passes through the scraper (25) and is threadedly connected to the inner cavity of the scraper (25). A motor (27) is fixedly connected to one side of the inner cavity of the rain shield (21), and the output shaft of the motor (27) is transmission-connected to one end of the threaded rod (26), and the input end of the motor (27) is electrically connected to the output end of the PLC controller (13).

6. The temperature measurement and early warning device for a switch cabinet for a smart distribution network as claimed in claim 5, characterized in that: The dust cleaning unit (2) further comprises a limiting rod (28), the number of the limiting rods (28) being two, the two limiting rods (28) being respectively fixedly connected to the inner wall of the rain shield (21), one end of the limiting rod (28) passing through the scraper (25) and being movably connected to the inner wall of the scraper (25).

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