CN109714937B - Control method of heat dissipation system of electrical cabinet - Google Patents
Control method of heat dissipation system of electrical cabinet Download PDFInfo
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- CN109714937B CN109714937B CN201910132406.8A CN201910132406A CN109714937B CN 109714937 B CN109714937 B CN 109714937B CN 201910132406 A CN201910132406 A CN 201910132406A CN 109714937 B CN109714937 B CN 109714937B
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Abstract
The invention discloses a control method of a heat dissipation system of an electrical cabinet, and belongs to the technical field of heat dissipation of electrical equipment. The control method of the electrical cabinet heat dissipation system comprises the following steps: setting an upper limit value and a lower limit value of the internal and external temperature of the electric cabinet; setting an upper limit value of the humidity inside and outside the electric cabinet; the method comprises the steps that actual temperature and humidity inside and outside an electric cabinet are obtained through an acquisition module and fed back to a controller; the actual temperature and humidity inside and outside the electrical cabinet are compared with the set upper and lower limit values, so that the air conditioner, the heat dissipation module and the hot air circulation module can be automatically controlled through the controller to carry out cooling and dehumidifying operations. The control method of the electrical cabinet heat dissipation system provided by the invention can feed back the temperature and humidity inside and outside the electrical cabinet in time and control the temperature and humidity inside and outside the electrical cabinet within a better range, thereby not only ensuring the electrical cabinet to work normally, but also achieving the purpose of energy conservation.
Description
Technical Field
The invention relates to the technical field of heat dissipation of electrical equipment, in particular to a control method of a heat dissipation system of an electrical cabinet.
Background
The electrical cabinet is used for bearing various electrical components and can play a role in protecting the electrical components. When the components work, more heat can be generated, so that the temperature inside and outside the electrical cabinet can rise; if not in time dispel the heat to the regulator cubicle, the inside components and parts of regulator cubicle just receive the damage easily. Therefore, the heat dissipation system is important for the electrical cabinet.
Although, the conventional electrical cabinet heat dissipation system can achieve the purpose of heat dissipation of the electrical cabinet only by controlling an air conditioner or a heat dissipation fan; however, the control method is difficult to control the humidity inside and outside the electrical cabinet, so when the temperature inside and outside the electrical cabinet is low, water vapor inside and outside the electrical cabinet is easy to condense, and thus the problem of short circuit of components inside the electrical cabinet is easily caused.
Disclosure of Invention
The invention aims to provide a control method of a heat dissipation system of an electrical cabinet, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a control method of a heat dissipation system of an electrical cabinet comprises an acquisition module, a heat dissipation module, an air conditioner, a controller, a hot air circulation module for reducing the humidity inside the electrical cabinet and a plurality of groups of electrical cabinets, wherein the heat dissipation module is arranged inside the electrical cabinet, the controller is arranged outside the electrical cabinet, and the hot air circulation module is communicated with an air conditioner external unit; the control method comprises the following steps:
setting an upper limit value and a lower limit value of the internal and external temperature of the electric cabinet; setting an upper limit value of the humidity inside and outside the electric cabinet;
the method comprises the steps that actual temperature and humidity inside and outside an electric cabinet are obtained through an acquisition module and fed back to a controller;
when the actual temperature outside the electrical cabinet is higher than the upper limit value of the external temperature of the electrical cabinet, the controller controls the air conditioner to cool the outside of the electrical cabinet; when the actual temperature outside the electrical cabinet is lower than the lower limit value of the external temperature of the electrical cabinet, stopping the cooling operation;
when the actual humidity outside the electrical cabinet is higher than the upper limit value of the humidity outside the electrical cabinet, the controller controls the air conditioner to perform dehumidifying operation on the outside of the electrical cabinet; when the actual humidity outside the electrical cabinet is lower than the upper limit value of the humidity outside the electrical cabinet, the dehumidifying operation is stopped;
when the actual temperature inside the electrical cabinet is higher than the upper limit value of the temperature inside the electrical cabinet, the controller controls the heat dissipation module to cool the inside of the electrical cabinet; when the actual temperature inside the electrical cabinet is lower than the lower limit value of the temperature inside the electrical cabinet, stopping the cooling operation;
when the actual humidity inside the electrical cabinet is higher than the upper limit value of the humidity inside the electrical cabinet, the controller controls the hot air circulation module to perform dehumidifying operation on the inside of the electrical cabinet; and when the actual humidity in the electrical cabinet is lower than the upper limit value of the humidity in the electrical cabinet, the dehumidifying operation is stopped.
According to a preferred scheme adopted by the invention, the acquisition module comprises an outside-cabinet temperature and humidity sensor and an inside-cabinet temperature and humidity sensor, the outside-cabinet temperature and humidity sensor is electrically connected with an outside-cabinet probe, and the inside-cabinet temperature and humidity sensor is electrically connected with an inside-cabinet probe; the probe is arranged outside the electric cabinet, and the probe is arranged inside the electric cabinet.
According to another preferred scheme adopted by the invention, the heat dissipation module comprises a plurality of groups of heat dissipation fans and a dustproof net, the heat dissipation fans are arranged inside the electrical cabinet, the dustproof net is arranged on the side wall of the electrical cabinet, and a plurality of groups of ventilation holes are further formed in the side wall of the electrical cabinet.
According to another preferred scheme adopted by the invention, the hot air circulation module comprises a hot air outlet pipe, a hot air inlet pipe and an exhaust fan, wherein the hot air outlet pipe is communicated with an air conditioner external unit which is communicated with an air conditioner; the hot air outlet pipe is also communicated with the electrical cabinet through a hot air inlet pipe, and the electrical cabinet is communicated with the exhaust fan through an exhaust pipe.
According to another preferred scheme adopted by the invention, a second electromagnetic valve is arranged in the hot air outlet pipe, a third electromagnetic valve is arranged in the hot air inlet pipe, and a fourth electromagnetic valve is arranged in the exhaust pipe.
According to another preferred scheme adopted by the invention, the heat dissipation system of the electrical cabinet further comprises an alarm module, wherein the alarm module comprises an alarm, and the alarm is electrically connected with the controller.
In another preferred embodiment of the present invention, the control method further includes the following steps:
setting an alarm value of the internal and external temperature of the electric cabinet; setting an alarm value of the humidity inside and outside the electrical cabinet;
when the actual temperature outside the electrical cabinet is higher than the alarm value of the temperature outside the electrical cabinet, the alarm gives an alarm sound;
when the actual temperature inside the electrical cabinet is higher than the alarm value of the temperature inside the electrical cabinet, the alarm gives an alarm sound;
when the actual humidity outside the electrical cabinet is higher than the alarm value of the humidity outside the electrical cabinet, the alarm gives an alarm sound;
when the actual humidity inside the electrical cabinet is higher than the alarm value of the humidity inside the electrical cabinet, the alarm gives out alarm sound.
Compared with the prior art, the technical scheme provided by the invention has the following technical effects:
(1) according to the control method of the electric cabinet cooling system, the temperature and the humidity outside the electric cabinet are collected through the temperature and humidity sensor outside the electric cabinet, the temperature and the humidity inside the electric cabinet are collected through the temperature and humidity sensor inside the electric cabinet, and the temperature and the humidity inside and outside the electric cabinet can be fed back in time; in addition, by setting the upper limit value and the lower limit value of the internal and external temperature of the electrical cabinet and setting the upper limit value of the internal and external humidity of the electrical cabinet, the temperature and humidity of the internal and external parts of the electrical cabinet can be controlled within a better range, so that the normal work of the electrical cabinet can be ensured, and the purpose of energy conservation can be achieved.
(2) The invention also sets the alarm, sets the alarm values of the internal and external temperatures of the electrical cabinet and sets the alarm values of the internal and external humidity of the electrical cabinet, thereby being convenient for finding the fault or the abnormity of the heat dissipation system of the electrical cabinet in time, and further ensuring that the components in the electrical cabinet are not easy to damage.
Drawings
Fig. 1 is a schematic structural diagram of an electrical cabinet heat dissipation system.
Fig. 2 is a schematic structural diagram of the electrical cabinet.
Fig. 3 is a schematic control structure diagram of the electrical cabinet heat dissipation system provided in embodiment 1.
Fig. 4 is a schematic control structure diagram of the electrical cabinet heat dissipation system provided in embodiment 2.
In the figure: 1-equipment room, 2-electrical cabinet, 3-mounting rack, 4-controller, 5-air conditioner, 6-air conditioner external unit, 7-alarm, 8-cabinet external temperature and humidity sensor, 9-cabinet external probe, 10-hot air outlet pipe, 11-hot air discharge port, 12-first electromagnetic valve, 13-second electromagnetic valve, 14-hot air inlet pipe, 15-third electromagnetic valve, 16-exhaust pipe, 17-fourth electromagnetic valve, 18-exhaust fan, 19-cooling fan, 20-dust screen, 21-cabinet internal temperature and humidity sensor, 22-cabinet internal probe and 23-vent hole.
Detailed Description
The following specific embodiments are specifically and clearly described in the technical solutions of the present application with reference to the drawings provided in the present specification. The drawings in the specification are for clarity of presentation of the technical solutions of the present application, and do not represent shapes or sizes in actual production or use, and reference numerals of the drawings are not limited to the claims involved.
In addition, in the description of the present application, terms used should be construed broadly, and specific meanings of the terms may be understood by those skilled in the art according to actual situations. For example, the term "mounted" as used in this application may be defined as a fixed mounting that is removable or a fixed mounting that is not removable, etc.; the terms "set" and "provided" as used herein may be defined as either a contact or a non-contact arrangement, etc.; the terms "connected" and "connected," as used herein, can be defined as fixedly connected or movably connected, or the like; the term "match" as used herein may be defined as the same or similar in shape or size, etc.; all the terms of orientation used are used with reference to the drawings or are based on the direction defined by the actual situation and the common general knowledge.
Example 1
Referring to fig. 1 to 3, the embodiment provides a method for controlling a heat dissipation system of an electrical cabinet, where the heat dissipation system of the electrical cabinet includes an acquisition module, a heat dissipation module, a hot air circulation module, an air conditioner 5, a controller 4, and a plurality of groups of electrical cabinets 2, the controller 4 and the groups of electrical cabinets 2 are mounted on a mounting bracket 3, and the mounting bracket 3 is mounted in an equipment room 1; the air conditioner 5 is installed on the top of the equipment room 1 and is communicated with an air conditioner external unit 6, and the air conditioner external unit 6 is installed on the side wall of the equipment room 1. Wherein, the controller 4 is a PLC controller in the prior art; the air conditioner 5 is a common air conditioner in the prior art and has the functions of refrigeration and dehumidification; the air conditioner outdoor unit 6 is used for discharging hot air.
In addition, the acquisition module comprises an outside-cabinet temperature and humidity sensor 8 and an inside-cabinet temperature and humidity sensor 21, the outside-cabinet temperature and humidity sensor 8 is electrically connected with the outside-cabinet probe 9, and the inside-cabinet temperature and humidity sensor 21 is electrically connected with the inside-cabinet probe 22; the external probe 9 is disposed outside the electrical cabinet 2, and the internal probe 22 is disposed inside the electrical cabinet 2. The outside-cabinet temperature and humidity sensor 8 and the inside-cabinet temperature and humidity sensor 21 are temperature and humidity sensors in the prior art, and can be used for accurately measuring the temperature and humidity inside and outside the electrical cabinet 2 and feeding back the obtained temperature and humidity data to the controller 4 for processing and analysis.
Further, in order to reduce the temperature inside the electrical cabinet 2, the heat dissipation module includes a plurality of sets of heat dissipation fans 19 and a dust screen 20, the heat dissipation fans 19 are disposed inside the electrical cabinet 2, the dust screen 20 is disposed on a side wall of the electrical cabinet 2, and a plurality of sets of vent holes 23 are further disposed on the side wall of the electrical cabinet 2; through the cooling fan 19 and the vent 23, components inside the electrical cabinet 2 can be cooled, so as to reduce the temperature inside the electrical cabinet 2; through the setting of dust screen 20, can play dustproof effect at radiating in-process.
Further, in order to reduce the humidity inside the electrical cabinet 2, the hot air circulation module includes a hot air outlet pipe 10, a hot air inlet pipe 14 and an exhaust fan 18, the hot air outlet pipe 10 is communicated with an air conditioner external unit 6, and the air conditioner external unit 6 is communicated with an air conditioner 5; the hot air outlet pipe 10 is also communicated with the electrical cabinet 2 through a hot air inlet pipe 14, and the electrical cabinet 2 is communicated with an exhaust fan 18 through an exhaust pipe 16; the hot air outlet pipe 10 is also communicated with a hot air outlet 11, and a first electromagnetic valve 12 is arranged in the hot air outlet 11; the hot air outlet pipe 10 is internally provided with a second electromagnetic valve 13, the hot air inlet pipe 14 is internally provided with a third electromagnetic valve 15, and the exhaust pipe 16 is internally provided with a fourth electromagnetic valve 17. Through the arrangement of the hot air outlet pipe 10 and the hot air inlet pipe 14, hot air discharged by the air conditioner external unit 6 can be circulated into the electrical cabinet 2, and water vapor in the electrical cabinet 2 can be pumped away through the exhaust fan 18, so that the purpose of reducing the humidity inside the electrical cabinet 2 is achieved. It should be noted that each group of the electrical cabinets 2 is correspondingly provided with a group of the third electromagnetic valve 15 and the fourth electromagnetic valve 17, so as to ensure that each group of the electrical cabinets 2 can be independently dehumidified.
In addition, the control method of the electrical cabinet heat dissipation system comprises the following steps:
firstly, setting an upper limit value and a lower limit value of the internal and external temperature of the electric cabinet 2 and an upper limit value of the internal and external humidity of the electric cabinet 2 in a controller 4; specifically, these upper and lower limit values may be set according to actual requirements. For example, the upper limit value of the external temperature of the electrical cabinet 2 may be set to 25 ℃, and the lower limit value of the external temperature of the electrical cabinet 2 may be set to 15 ℃ of the third electromagnetic valve; the upper limit value of the internal temperature of the electrical cabinet 2 can be set to be 20 ℃ of the dustproof net, and the lower limit value of the external temperature of the electrical cabinet 2 can be set to be 15 ℃ of the third electromagnetic valve; the upper limit value of the humidity outside the electrical cabinet 2 can be set to 60%, and the upper limit value of the humidity inside the electrical cabinet 2 can be set to 50 ℃.
Then, the actual temperature and humidity inside and outside the electrical cabinet 2 can be obtained through the outside temperature and humidity sensor 8 and the inside temperature and humidity sensor 21, and are fed back to the controller 4. The controller 4 may then process the fed back actual temperature and humidity inside and outside the electrical cabinet 2 to perform dehumidification or cooling operations.
When the actual temperature outside the electrical cabinet 2 is higher than the upper limit value of the temperature outside the electrical cabinet 2, the controller 4 automatically controls the air conditioner 5 to cool the outside of the electrical cabinet 2; when the actual temperature outside the electrical cabinet 2 is lower than the lower limit value of the external temperature of the electrical cabinet 2, the cooling operation is stopped to ensure that the temperature outside the electrical cabinet 2 is not too low, so that the water vapor in the electrical cabinet 2 is condensed.
When the actual humidity outside the electrical cabinet 2 is higher than the upper limit value of the humidity outside the electrical cabinet 2, the controller 4 can automatically control the air conditioner 5 to perform dehumidifying operation on the outside of the electrical cabinet 2, so that the content of water vapor outside the electrical cabinet 2 can be ensured not to be too high, and the water vapor is prevented from being condensed on the outer wall of the electrical cabinet 2; when the actual humidity outside the electrical cabinet 2 is lower than the upper limit value of the humidity outside the electrical cabinet 2, the dehumidifying operation is stopped.
In addition, when the actual temperature inside one or more groups of the electrical cabinets 2 is higher than the upper limit value of the temperature inside the electrical cabinets 2, the controller 4 can automatically control the corresponding cooling fans 19 to cool the interior of the electrical cabinets 2, so as to ensure that the temperature of components inside the electrical cabinets 2 is not too high; when the actual temperature inside one or more groups of the electrical cabinets 2 is lower than the lower limit value of the temperature inside the electrical cabinets 2, the corresponding cooling fan 19 is stopped to perform the cooling operation.
When the actual humidity inside one or more groups of electrical cabinets 2 is higher than the upper limit value of the humidity inside the electrical cabinets 2, the controller 4 automatically controls to close the first electromagnetic valve 12, open the second electromagnetic valve 13, start the exhaust fan 18, and open the corresponding third electromagnetic valve 15 and fourth electromagnetic valve 17, so that hot air can be fed into the electrical cabinets 2, and water vapor in the electrical cabinets 2 can be extracted, so as to achieve the purpose of dehumidifying, thereby ensuring that the water vapor content inside the electrical cabinets 2 is not too high, and avoiding the problem of short circuit of components inside the electrical cabinets 2 caused by water vapor condensation; and when the actual humidity in the regulator cubicle 2 is less than the upper limit value of the humidity in the regulator cubicle 2, just can automatic shutdown take out wet to prevent the inside temperature rise of regulator cubicle 2.
Example 2
Referring to fig. 1 and 4, in order to find a fault or an abnormality of a heat dissipation system of an electrical cabinet in time, the embodiment is improved on the basis of embodiment 1, wherein the heat dissipation system of the electrical cabinet further includes an alarm module, the alarm module includes an alarm 7, and the alarm 7 is disposed at the top of the equipment room 1 and electrically connected to the controller 4. In addition, the control method of the electrical cabinet heat dissipation system further comprises the following steps:
firstly, setting an alarm value of the internal and external temperature of the electrical cabinet 2 and an alarm value of the internal and external humidity of the electrical cabinet 2 in the controller 4; the specific alarm value that can decide according to actual conditions, for example, the alarm value of 2 outside temperatures of regulator cubicle is 30 ℃, the alarm value of 2 inside temperatures of regulator cubicle is 35 ℃, the alarm value of 2 outside humidity of regulator cubicle is 80%, the alarm value of 2 inside humidity of regulator cubicle is 80%.
When the actual temperature outside the electrical cabinet 2 is higher than the alarm value of the temperature outside the electrical cabinet 2, the alarm 7 gives an alarm sound; when the actual temperature inside any group of the electrical cabinets 2 is higher than the alarm value of the temperature inside the electrical cabinets 2, the alarm 7 gives out an alarm sound, so that whether the air conditioner 5 and the cooling fan 19 are abnormal or not can be fed back in time;
when the actual humidity outside the electrical cabinet 2 is higher than the alarm value of the humidity outside the electrical cabinet 2, the alarm 7 gives an alarm sound; when the actual humidity inside any group of the electrical cabinets 2 is higher than the alarm value of the humidity inside the electrical cabinets 2, the alarm 7 gives out an alarm sound, so that the problem that whether the air conditioner 5 and the exhaust fan 18 are abnormal or not can be fed back in time.
In summary, the humiture outside the electrical cabinet 2 is collected by the outside-cabinet humiture sensor 8, and the humiture inside the electrical cabinet 2 is collected by the inside-cabinet humiture sensor 21, so that the humiture inside and outside the electrical cabinet 2 can be fed back in time; in addition, by setting the upper limit value and the lower limit value of the internal and external temperature of the electrical cabinet 2 and setting the upper limit value of the internal and external humidity of the electrical cabinet 2, the internal and external temperature and humidity of the electrical cabinet 2 can be controlled in a better range, and the purpose of energy conservation can be achieved. In addition, the invention also sets the alarm 7, sets the alarm values of the internal and external temperatures of the electrical cabinet 2 and sets the alarm values of the internal and external humidity of the electrical cabinet 2, thereby being convenient for finding the fault or abnormity of the heat dissipation system of the electrical cabinet in time and ensuring that the components in the electrical cabinet are not easy to damage.
It should be noted that the above embodiments are only specific and clear descriptions of technical solutions and technical features of the present application. However, to those skilled in the art, aspects or features that are part of the prior art or common general knowledge are not described in detail in the above embodiments.
In addition, the technical solutions of the present application are not limited to the above-described embodiments, and those skilled in the art should take the description as a whole, and the technical solutions in the embodiments may be appropriately combined, so that other embodiments that can be understood by those skilled in the art may be formed.
Claims (5)
1. A control method of a heat dissipation system of an electrical cabinet comprises an acquisition module, a heat dissipation module, an air conditioner (5), a controller (4) and a plurality of groups of electrical cabinets (2), wherein the heat dissipation module is arranged inside the electrical cabinet (2), and the controller (4) is arranged outside the electrical cabinet (2), and is characterized in that the heat dissipation system of the electrical cabinet further comprises a hot air circulation module used for reducing the humidity inside the electrical cabinet (2), and the hot air circulation module is communicated with an air conditioner external unit (6); the control method comprises the following steps:
setting an upper limit value and a lower limit value of the internal and external temperature of the electric cabinet (2); setting an upper limit value of the humidity inside and outside the electric cabinet (2);
the actual temperature and humidity inside and outside the electric cabinet (2) are obtained through the acquisition module and fed back to the controller (4);
when the actual temperature outside the electrical cabinet (2) is higher than the upper limit value of the external temperature of the electrical cabinet (2), the controller (4) is used for controlling the air conditioner (5) to cool the outside of the electrical cabinet (2); when the actual temperature outside the electrical cabinet (2) is lower than the lower limit value of the external temperature of the electrical cabinet (2), stopping the cooling operation;
when the actual humidity outside the electrical cabinet (2) is higher than the upper limit value of the humidity outside the electrical cabinet (2), the controller (4) is used for controlling the air conditioner (5) to carry out dehumidifying operation on the outside of the electrical cabinet (2); when the actual humidity outside the electrical cabinet (2) is lower than the upper limit value of the humidity outside the electrical cabinet (2), the dehumidifying operation is stopped;
when the actual temperature inside the electrical cabinet (2) is higher than the upper limit value of the temperature inside the electrical cabinet (2), the controller (4) controls the heat dissipation module to cool the interior of the electrical cabinet (2); when the actual temperature inside the electrical cabinet (2) is lower than the lower limit value of the temperature inside the electrical cabinet (2), stopping the cooling operation;
when the actual humidity inside the electrical cabinet (2) is higher than the upper limit value of the humidity inside the electrical cabinet (2), the controller (4) controls the hot air circulation module to perform dehumidifying operation on the inside of the electrical cabinet (2); when the actual humidity in the electrical cabinet (2) is lower than the upper limit value of the humidity in the electrical cabinet (2), the dehumidifying operation is stopped;
the hot air circulation module comprises a hot air outlet pipe (10), a hot air inlet pipe (14) and an exhaust fan (18), the hot air outlet pipe (10) is communicated with an air conditioner external unit (6), and the air conditioner external unit (6) is communicated with an air conditioner (5); the hot air outlet pipe (10) is also communicated with the electrical cabinet (2) through a hot air inlet pipe (14), and the electrical cabinet (2) is communicated with an exhaust fan (18) through an exhaust pipe (16); the hot air outlet pipe (10) is internally provided with a second electromagnetic valve (13), the hot air inlet pipe (14) is internally provided with a third electromagnetic valve (15), and the exhaust pipe (16) is internally provided with a fourth electromagnetic valve (17).
2. The method for controlling the heat dissipation system of the electrical cabinet according to claim 1, wherein the acquisition module comprises an outside-cabinet temperature and humidity sensor (8) and an inside-cabinet temperature and humidity sensor (21), the outside-cabinet temperature and humidity sensor (8) is electrically connected with an outside-cabinet probe (9), and the inside-cabinet temperature and humidity sensor (21) is electrically connected with an inside-cabinet probe (22); the probe (9) outside the cabinet is arranged outside the electric cabinet (2), and the probe (22) inside the cabinet is arranged inside the electric cabinet (2).
3. The method for controlling the heat dissipation system of the electrical cabinet according to claim 1, wherein the heat dissipation module includes a plurality of sets of heat dissipation fans (19) and a dust screen (20), the heat dissipation fans (19) are disposed inside the electrical cabinet (2), the dust screen (20) is disposed on a side wall of the electrical cabinet (2), and a plurality of sets of ventilation holes (23) are further disposed on the side wall of the electrical cabinet (2).
4. The method for controlling the heat dissipation system of the electrical cabinet according to any one of claims 1 to 3, wherein the heat dissipation system of the electrical cabinet further comprises an alarm module, the alarm module comprises an alarm (7), and the alarm (7) is electrically connected with the controller (4).
5. The method of claim 4, further comprising the steps of:
setting an alarm value of the internal and external temperature of the electrical cabinet (2); setting an alarm value of the humidity inside and outside the electrical cabinet (2);
when the actual temperature outside the electrical cabinet (2) is higher than the alarm value of the temperature outside the electrical cabinet (2), the alarm (7) gives out an alarm sound;
when the actual temperature inside the electrical cabinet (2) is higher than the alarm value of the temperature inside the electrical cabinet (2), the alarm (7) gives out an alarm sound;
when the actual humidity outside the electrical cabinet (2) is higher than the alarm value of the humidity outside the electrical cabinet (2), the alarm (7) gives out an alarm sound;
when the actual humidity inside the electrical cabinet (2) is higher than the alarm value of the humidity inside the electrical cabinet (2), the alarm (7) gives out an alarm sound.
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| CN112467532B (en) * | 2020-11-06 | 2022-08-09 | 广东求精电气有限公司 | Intelligent electrical cabinet |
| CN112413856A (en) * | 2020-11-10 | 2021-02-26 | 珠海格力电器股份有限公司 | Air exhaust control method and device and air conditioning equipment |
| CN116231473B (en) * | 2023-05-11 | 2023-07-21 | 泰森电气有限公司 | Switch board with automatic alarm function |
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| CN207504362U (en) * | 2017-11-15 | 2018-06-15 | 四川飞宇电力股份有限公司 | A kind of radiating dustproof electrical cabinet |
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| JP4085649B2 (en) * | 2002-02-25 | 2008-05-14 | 日本電気株式会社 | Electronic device dew condensation prevention structure and dew condensation prevention method |
| CN203837202U (en) * | 2014-05-07 | 2014-09-17 | 深圳海悟科技有限公司 | Energy-efficient air conditioner system |
| CN205657333U (en) * | 2016-05-27 | 2016-10-19 | 山东克曼特电气集团有限公司 | Automatic control warm and humid high -tension electricity cabinet |
| CN206163955U (en) * | 2016-10-25 | 2017-05-10 | 河南开祥精细化工有限公司 | High pressure of cooling dehumidification becomes electricity distribution room |
| CN207969242U (en) * | 2017-11-02 | 2018-10-12 | 广东核电合营有限公司 | Cabinet is simulated in machine-cabinet temperature controlling system and master control |
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| CN207504362U (en) * | 2017-11-15 | 2018-06-15 | 四川飞宇电力股份有限公司 | A kind of radiating dustproof electrical cabinet |
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