CN104602482A - Cabinet and refrigerating control method, device and system for cabinet - Google Patents

Abstract

The invention relates to the technical field of refrigeration equipment, and discloses a cabinet and a cooling control method, device and system for the cabinet. The cabinet includes a closed cabinet with a front door and a rear door, a carrier and an air conditioner for carrying electronic equipment located in the cabinet, wherein, the side of the carrier facing the front door is provided with a device for blocking the electronic device A blocking plate for the gap between the cabinet and the cabinet body, the front door and the bearing frame form a first passage, the rear door and the bearing frame form a second passage, the air supply port of the air conditioner and the first The channels communicate with each other, and the air return port of the air conditioner communicates with the second channel. In the cabinet of the present invention, since the air conditioner is located inside the closed cabinet, the first passage and the second passage are respectively cold air flow and hot air flow during the cooling internal circulation, and the cabinet of the present invention can isolate the cold and hot air flow, therefore, it can Improve the cooling efficiency of the cabinet and reduce the cooling energy consumption of the cabinet.

Description

Cabinet and cooling control method, device and system for cabinet

technical field

The invention relates to the technical field of refrigeration equipment, in particular to a cabinet and a cooling control method, device and system for the cabinet.

Background technique

Modular data center is a new type of data center model, which is becoming more and more popular due to its advantages of easy expansion, easy standardization, simple construction and small footprint. A modular data center integrates IT equipment (such as servers), power supply, cabinets, refrigeration, integrated wiring, security and fire protection equipment, etc. within each modular unit to form a relatively independent data center.

The most commonly used cabinet type at present is that the inside of the cabinet is equipped with standard installation columns, and the front and rear of the cabinet are equipped with mesh doors. The electronic equipment in the cabinet realizes the function of cooling the electronic equipment through the air circulation between the air inside the cabinet and the air outside the cabinet. When this kind of cabinet is used, it only plays the role of rack load-bearing, and cannot realize the cooling effect of the cabinet on electronic equipment. When using this kind of cabinet, a cooling system must be installed in the computer room. Therefore, such a data center is not only The input cost is high, and the entire data center needs to be cooled during use to maintain the normal operation of the electronic equipment in the cabinet, and the energy utilization efficiency is very low. At the same time, the existing rack-mounted cabinets have no dust-proof measures. When used in the data center, the dust will be carried from the outside of the cabinet to the electronic equipment with the airflow, which will affect the service life of the electronic equipment. Dust accumulation for a long time will easily lead to electronic Equipment damage, resulting in greater losses. In order to solve the existing problems, there is currently a rack-mounted standard cabinet with a closed built-in circulating air duct, as shown in Figure 1, which is a structural schematic diagram of a rack-mounted standard cabinet with a built-in circulating air duct in the prior art. The rack-mounted standard cabinet includes a cabinet body 1, an air conditioner 2 located in the cabinet body 1, and a ventilation duct 4 communicating with the air outlet 3 of the air conditioner 2, wherein the air conditioner 2 is arranged on the top of the cabinet body 1, and the ventilation duct 4 runs along the top of the cabinet body. The height direction is set in the cabinet body 1. When cooling the cabinet body, the air conditioner 2 generates cold air, which enters the ventilation duct 4 through the air outlet 3, and the cold air flows out from the outlet of the ventilation duct 4, and passes through the electronic cabinet from the bottom of the cabinet body 1. The device 5 reaches the air inlet of the air conditioner 2 . Although this kind of cabinet can solve the problem that the cabinet with front and rear mesh doors is not dustproof, it also has some new problems, such as the temperature of the air-conditioning gradually rises from the bottom to the top of the cabinet, and the cooling effect on the electronic equipment on the top is relatively poor. Poor, and the hot and cold airflow cannot be highly isolated, the cooling efficiency of the system is low, and the power consumption of the refrigeration equipment is large.

The disadvantages of the prior art are that cold and hot airflows are mixed for refrigeration, the refrigeration efficiency is low, and the power consumption of the refrigeration equipment is relatively large.

Contents of the invention

The invention provides a cabinet and a cooling control method, device and system for the cabinet, which are used to improve the cooling efficiency of the cabinet and reduce the cooling energy consumption of the cabinet.

The cabinet of the present invention includes a closed cabinet body with a front door and a rear door, and a carrier frame for carrying electronic equipment and an air conditioner located in the cabinet body, wherein, the side of the carrier frame facing the front door is provided with a device for blocking the electronic device and the air conditioner. The blocking plate for the gap between the cabinets, the front door and the bearing frame form a first channel, the rear door and the carrier frame form a second channel, the air supply port of the air conditioner and the first channel In communication, the air return port of the air conditioner communicates with the second channel.

In the technical solution of the present invention, since the carrying frame carrying the electronic equipment and the front door and the back door of the cabinet respectively form a first channel and a second channel, the first channel communicates with the air supply port of the air conditioner, and the second channel communicates with the air return port of the air conditioner Therefore, the cold air flowing out from the air supply port passes through the first channel and crosses the electronic equipment and then flows into the second channel to form a hot air flow. It can be highly isolated, has high heat exchange efficiency, and avoids the loss of cold air caused by the mixing of cold and hot air. Therefore, the cooling efficiency of the cabinet can be improved and the cooling energy consumption of the cabinet can be reduced. Moreover, since the cold air flow passes through the electronic equipment laterally, the problem of poor cooling effect of the electronic equipment on the top can also be avoided.

Preferably, the air conditioner is located at the bottom of the cabinet; or, the air conditioner is located at the top of the cabinet.

In the cabinet, the position of the air conditioner can be various, as long as the cold air flow out of the air supply port of the air conditioner is in the first channel, and the hot air flow flows into the return air port of the air conditioner in the second channel. For example, the air conditioner can be located on the top of the cabinet or Located at the bottom of the cabinet, the air conditioner can also be set on the side of the cabinet. When the air conditioner is located at the bottom of the cabinet, the cooling effect is better.

Preferably, the cabinet also includes:

The fresh air intake fan located at the lower part of the front door has a filter screen for filtering the fresh air outside the cabinet;

An air outlet fan located on the top plate of the cabinet and opposite to the position of the second channel.

In the preferred technical solution of the present invention, a fresh air inlet fan is added to the lower part of the first passage, and an air outlet fan is added to the upper part of the second passage. When the temperature outside the cabinet is low, the fresh air outside the cabinet can be used to enter the cabinet to realize utilization. The cold source cooling outside the cabinet can further reduce energy consumption and improve energy utilization.

The refrigeration control system of the cabinet of the present invention includes the above-mentioned cabinet with the fresh air inlet fan and the outlet fan, and also includes:

The temperature information detection device is used to detect the temperature information inside and outside the cabinet;

The control device is respectively connected to the temperature information detection device, the air conditioner, the fresh air inlet fan and the outlet fan for signal connection, and is used to control the The air conditioner is turned off, and the fresh air inlet fan and the outlet fan are controlled to be turned on.

In the refrigeration control system of the cabinet of the present invention, when it is detected that the temperature outside the cabinet is lower than the temperature in the first channel, and this situation lasts for a first set time, the air conditioner in the cabinet is turned off, and the fresh air intake fan is turned on. And the air outlet fan, using the cold source outside the cabinet to cool the electronic equipment in the cabinet, further reducing cooling energy consumption and improving energy utilization.

Preferably, the temperature information inside and outside the cabinet is the difference between the temperature outside the cabinet and the temperature in the first channel, and the temperature detection device is a temperature difference sensor; or,

The temperature information inside and outside the cabinet is the temperature outside the cabinet and the temperature in the first channel, and the temperature detection device includes: a first temperature sensor, arranged outside the cabinet, for detecting the temperature information outside the cabinet; Two temperature sensors, arranged in the first channel, are used to detect temperature information in the first channel.

When detecting the temperature outside the cabinet and the temperature in the first channel, a temperature difference sensor can be used to directly obtain the difference between the temperature outside the cabinet and the temperature in the first channel. When the temperature outside the cabinet is lower than the temperature in the first channel, that is When the difference is less than zero and lasts for the first set time, the air conditioner is controlled to be turned off, and the fresh air inlet fan and the outlet fan are controlled to be turned on; two temperature sensors can also be used to detect the temperature outside the cabinet respectively. temperature and the temperature in the first channel, the temperature outside the cabinet and the temperature in the first channel are further judged by the control device.

Preferably, the control device is further used to control the opening of the air conditioner, and control the fresh air inlet fan and the outlet fan when the temperature outside the cabinet is not lower than the temperature in the first passage for a second set time. The fan is off.

Preferably, the refrigeration control system of the cabinet further includes:

The front door switch sensor is used to detect the switch state of the front door;

The rear door switch sensor is used to detect the switch state of the rear door;

An alarm device is signal-connected to the control device;

The control device is further connected to the front door switch sensor and the rear door switch sensor in signal connection, and is further used to output alarm information to the alarm device for alarm when the front door is opened and/or the rear door is opened.

In order to ensure that the cabinet is a closed system, it is also necessary to detect the switch status of the front door and the back door. When the front door and/or the back door are in the open state, the control device outputs an alarm message, and the alarm device issues an alarm according to the alarm message.

Preferably, the refrigeration control system of the cabinet further includes:

Water immersion sensor, used to detect water leakage in the cabinet;

The control device is also connected with the water sensor signal, and is further used for controlling and outputting alarm information when the cabinet leaks.

The air conditioner in the cabinet may leak water during the cooling process, or the humidity in the cabinet is high to form condensed water. Therefore, it is necessary to add a water immersion sensor to detect whether there is water leakage in the cabinet. When there is water leakage in the cabinet, an alarm message will be output. The device alarms.

Preferably, the refrigeration control system for any of the above cabinets further includes:

A display panel located on the front door is signally connected to the control device.

The display panel can be used to display the temperature information received by the control device outside the cabinet, the temperature information in the first channel, the switch status of the air conditioner, the switch status of the front door, the switch status of the rear door, and the water leakage status in the cabinet, It can also display the voltage information and current information of each electronic equipment in the cabinet. By adding a display panel on the front door, the operator can visually see the status of various equipment in the cabinet, judge the possible bad status based on experience, and take preventive measures early. In addition, in addition to the above displays, it can also display the status of other equipment in the cabinet, such as uninterruptible power supply and power distribution unit.

Preferably, the refrigeration control system of the cabinet further includes:

The display terminal located outside the cabinet is signal-connected with the control device.

In the preferred technical solution of the present invention, the display terminal can be used to locally view or remotely view the temperature information outside the cabinet received by the control device, the temperature information in the first channel, the switch status of the air conditioner, the switch status of the front door, and the status of the rear door. The switch status and water leakage status in the cabinet can also be used to check the voltage information and current information of each electronic device in the cabinet. The display terminal can be specifically a computer. For example, the control device can be connected to a local area network or the Internet to realize the local viewing of the computer or remote viewing of the status of various equipment in the cabinet. Since the operator does not need to check outside the cabinet at any time, it can greatly save labor costs. . In addition to being input to the alarm device, the alarm information output by the control device can also be input to the display terminal. For example, the alarm information can be sent to the designated e-mail or mobile phone by email or text message, which can realize remote monitoring and achieve truly unmanned monitoring. The requirement of being on duty greatly saves labor costs.

The refrigeration control method of the cabinet of the present invention comprises:

Obtaining temperature information outside the cabinet and temperature information inside the first channel;

When the temperature outside the cabinet is lower than the temperature in the first channel for the first set time, the air conditioner in the cabinet is controlled to be turned off, and the fresh air inlet fan and outlet fan are controlled to be turned on.

In the cabinet refrigeration control method of the present invention, when the temperature outside the cabinet is lower than the temperature in the first channel and lasts for a first set time, the cold source outside the cabinet can be used to cool the electronic equipment inside the cabinet, further Save energy, reduce energy consumption, and improve energy utilization.

Preferably, the refrigeration control method of the cabinet further includes:

When the temperature outside the cabinet is not less than the temperature in the first channel and lasts for a second set time, the air conditioner is controlled to be turned on, and the fresh air inlet fan and outlet fan are controlled to be turned off.

Preferably, the refrigeration control method of the cabinet further includes:

Obtain the switch status of the front door and the switch status of the back door;

When the front door is opened and/or the rear door is opened, an alarm message is output.

Preferably, the refrigeration control method of the cabinet further includes:

Obtain the status of water leakage in the cabinet;

When water leaks in the cabinet, the control outputs an alarm message.

The refrigeration control device of the cabinet of the present invention comprises:

acquiring equipment, configured to acquire temperature information outside the cabinet and temperature information in the first channel;

The control device is used to control the air conditioner to be turned off and the fresh air inlet fan and outlet fan to be turned on when the temperature outside the cabinet is lower than the temperature in the first channel for a first set time.

Preferably, the control device is further used to control the air conditioner in the cabinet to turn on and the fresh air inlet fan and outlet fan to turn off when the temperature outside the cabinet is not lower than the temperature in the first channel for a second set time.

Preferably, the obtaining device is further used to obtain the switch state of the front door and the switch state of the rear door; the control device is further used to output alarm information when the front door and/or the rear door is opened.

Preferably, the obtaining device is further used to obtain the state of water leakage in the cabinet; the control device is further used to output alarm information when water leaks in the cabinet.

Description of drawings

Fig. 1 is a structural schematic diagram of a rack-mounted standard cabinet with a built-in circulating air duct in the prior art;

Fig. 2 is a schematic structural view of the first embodiment of the cabinet of the present invention;

3 is a schematic structural view of a second embodiment of the cabinet of the present invention;

FIG. 4 is a schematic structural view of a third embodiment of the cabinet of the present invention;

Fig. 5 is a schematic structural diagram of an embodiment of the refrigeration control system of the cabinet of the present invention;

Fig. 6 is a structural schematic diagram of another embodiment of the refrigeration control system of the cabinet of the present invention;

Fig. 7 is a schematic flow chart of an embodiment of a cooling control method for a cabinet of the present invention;

8 is a schematic flowchart of a specific embodiment of a cooling control method for a cabinet of the present invention;

Fig. 9 is a schematic structural view of an embodiment of a refrigeration control device for a cabinet of the present invention.

Reference signs:

1-cabinet body 2-air conditioner (background technology) 3-air outlet 4-ventilation duct 11-front door 12-back door

13-carrying frame 14-air conditioner 15-air supply port 16-return air port 17-first channel

18-Second channel 20-Fresh air inlet fan 21-Outlet fan 30-Control device

31-First temperature sensor 32-Second temperature sensor 33-Front door switch sensor

34-Back door switch sensor 35-Water immersion sensor 40-Alarm device 41-Display panel

42-Display terminal 51-Get device 52-Control device

Detailed ways

In order to reduce the cooling energy consumption of the cabinet and improve the energy utilization rate, the embodiments of the present invention provide a cabinet and a cooling control method, device and system for the cabinet. In this technical solution, the cabinet body is a closed cabinet body, and the cold and hot airflows are separated in the cabinet through the first passage and the second passageway, so as to avoid the loss of cold air caused by the mixing of cold and hot airflows, thus improving the cooling efficiency. Thereby improving energy efficiency. In order to make the purpose, technical solution and advantages of the present invention clearer, the following specific examples are given to further describe the present invention in detail.

An embodiment of the present invention provides a cabinet, as shown in FIG. 2, which is a schematic structural diagram of a first embodiment of the cabinet of the present invention. The cabinet includes a closed cabinet with a front door 11 and a rear door 12, which is located in the cabinet for Carrying frame 13 and air conditioner 14 carrying electronic equipment, wherein, the side of carrying frame 13 facing the front door 11 is provided with a sealing plate for sealing the gap between the electronic equipment and the cabinet body, and the front door 11 and the side of the carrying frame 13 close to the front door form a first Passage 17, rear door 12 and carrier frame 13 form second passage 18 near the rear door.

In the first embodiment of the present invention, since the carrier 13 carrying the electronic equipment and the front door 11 and the rear door 12 of the cabinet form the first channel 17 and the second channel 18 respectively, and the first channel 17 and the carrier are connected by a blocking plate. The frame 13 is highly isolated, the first channel 17 communicates with the air supply port 15 of the air conditioner 14, and the second channel 18 communicates with the air return port 16 of the air conditioner 14. Therefore, the cold air flowing out from the air supply port 15 passes through the first channel 17 and passes through the electronics The equipment forms a hot air flow and then flows into the second channel 18, and the hot air flow is sucked by the air return port 16. Therefore, when the cold air flow and the hot air flow circulate in the closed cabinet, it can be highly isolated, the heat exchange efficiency is high, and the mixing of the hot and cold air flow is avoided. The loss of cold air, therefore, can improve the cooling efficiency of the cabinet and reduce the cooling energy consumption of the cabinet. Moreover, since the cold air flow passes through the electronic equipment laterally, the problem of poor cooling effect of the electronic equipment on the top can also be avoided. And the refrigeration cycle in the entire cabinet is closed operation. Under the condition of rated load operation, the air circulation path of the refrigeration internal circulation is short, the refrigeration efficiency is high, the condensed water is low, and the internal environment is relatively stable.

The carrier includes a column and a bracket for carrying electronic equipment. The electronic equipment on the carrier may not completely occupy the carrier. Therefore, in order to better improve the cooling efficiency, a seal can be installed on the column near the front door in the vacant area of the carrier. Blocking plates, such as blind plates or other blocking measures, ensure a high degree of isolation of hot and cold airflow. The electronic equipment can be a server or other electronic equipment used in the cabinet. Taking the server as an example, there are fans on both sides of the server, which can suck the cold air flow from the first channel into the second channel after exchanging heat with the server.

The installation position of the air conditioner 14 of the cabinet of the present invention is not limited, for example, it is located at the top of the cabinet, at the bottom of the cabinet, it can also be located at the top outside the cabinet, at the bottom outside the cabinet, outside the side plate of the cabinet, as long as the air conditioner 14 The air supply port 15 of the air conditioner is communicated with the first channel 17, and the air return port 16 of the air conditioner 14 is communicated with the second channel 18. As shown in Figure 2, the air conditioner 14 is located at the bottom of the cabinet. When the air conditioner 14 is located at the bottom of the cabinet, the flow of the air flow is as shown by the arrowed line segment in Figure 2. A cold air flow is blown out from the air supply port 15 of the air conditioner 14, and the cold air flow passes through the electronic equipment during the ascent of the first passage 17 and connects with the electronic equipment. The equipment performs heat exchange to form a hot air flow and enters the second channel 18. Due to the suction effect of the air return port 16 of the air conditioner 14, the hot air flow flows downward into the air return port 16 of the air conditioner 14. Under the cooling effect of the evaporator of the air conditioner 14, the hot air flow Converted into a cold air flow and then blown out from the air outlet 15 , the evaporator of the air conditioner 14 can be a coil, which communicates with the compressor of the air conditioner 14 .

The second embodiment of the cabinet of the present invention is shown in FIG. 3 , which is a schematic structural diagram of the second embodiment of the cabinet of the present invention. The air conditioner 14 is located at the top of the cabinet. When the air conditioner 14 is located at the top of the cabinet, the flow of the air flow is as shown by the arrowed line segment in Figure 3, and a cold air flow is blown out from the air supply port 15 of the air conditioner 14, and the cold air flow passes through the electronic equipment during the descending process of the first passage 17 and is connected with the electronic equipment. The equipment conducts heat exchange to form a hot air flow that enters the second channel 18. Due to the air suction effect of the air return port 16 of the air conditioner 14, the hot air flow flows upward into the air return port 16 of the air conditioner 14. Under the cooling effect of the evaporator of the air conditioner 14, the hot air flow is converted Blow out from air supply port 15 again for cold air flow.

The third embodiment of the present invention is designed on the basis of the first embodiment or the second embodiment, as shown in Figure 4, which is a schematic structural diagram of the third embodiment of the cabinet of the present invention, and the cabinet also includes:

The fresh air intake fan 20 located at the lower part of the front door 11 has a filter screen for filtering the fresh air outside the cabinet;

An air outlet fan 21 located on the top plate of the cabinet and opposite to the second channel 18.

In the third embodiment of the present invention, a fresh air inlet fan 20 is added to the lower part of the first channel 17, and an air outlet fan 21 is added to the upper part of the second channel 18. When the temperature outside the cabinet is low, the existing closed built-in The rack-mounted standard cabinet of the circulating air duct cannot use the lower ambient temperature outside the cabinet to cool down the electronic equipment, and cannot efficiently reduce the energy consumption of the system, which is not conducive to environmental protection and energy saving, and is likely to cause energy waste. However, the implementation of the present invention For example, the fresh air outside the cabinet can be used to enter the cabinet to realize the cooling of the cold source outside the cabinet, so the energy consumption can be further reduced and the energy utilization rate can be improved.

An embodiment of the present invention also provides a cooling control system for a cabinet, as shown in FIG. 5 , which is a schematic structural diagram of an embodiment of a cooling control system for a cabinet of the present invention. The cooling control system includes the cabinet of the third embodiment, and include:

The temperature information detection device is used to detect the temperature information inside and outside the cabinet;

The control device 30 is respectively connected to the temperature information detection device, the air conditioner 14, the fresh air inlet fan 20 and the outlet fan 21 for signal connection, and is used for when the temperature outside the cabinet is lower than the temperature in the first channel and lasts for a first set time, Control the air conditioner 14 to turn off, and control the fresh air inlet fan 20 and the outlet fan 21 to turn on.

In this embodiment, when it is detected that the temperature outside the cabinet is lower than the temperature in the first channel, and this situation lasts for a first set time, the air conditioner 14 in the cabinet is turned off, and the fresh air inlet fan 20 and outlet fan 20 are turned on. The wind fan 21 uses the cold source outside the cabinet to cool the electronic equipment in the cabinet, reducing the time for the compressor of the air conditioner 14 to do work, so it can further reduce cooling energy consumption and improve energy utilization. As shown in Figure 5, when the air conditioner 14 in the cabinet is turned off and only the cold source outside the cabinet is used for cooling, the air flow is shown by the line segment with arrows in Figure 5, and the cold air flow outside the cabinet passes through the filter and is sucked by the fresh air intake fan 20 to In the first channel 17 , the cold air flows laterally through the electronic equipment during the ascending process of the first channel 17 and exchanges heat with the electronic equipment to form a hot air flow that enters the second channel 18 and is sucked out of the cabinet by the air outlet fan 21 .

Preferably, the temperature information inside and outside the cabinet is the difference between the temperature outside the cabinet and the temperature in the first channel, and the temperature detection device is a temperature difference sensor; or, please continue to refer to Figure 5,

The temperature information inside and outside the cabinet is the temperature outside the cabinet and the temperature in the first channel, and the temperature detection device includes: a first temperature sensor 31, which is arranged outside the cabinet, for detecting the temperature information outside the cabinet; The temperature sensor 32 is arranged in the first channel 17 and is used for detecting temperature information in the first channel.

There are many kinds of temperature information inside and outside the cabinet. One can use a temperature difference sensor to directly obtain the difference between the temperature outside the cabinet and the temperature in the first channel. When the temperature outside the cabinet is lower than the temperature in the first channel, the When the difference is less than zero and lasts for the first set time, control the air conditioner 14 to turn off, and control the fresh air inlet fan 20 and the outlet fan 21 to turn on; two temperature sensors can also be used to detect the temperature outside the cabinet and the first The temperature in the channel is further judged by the control device 30 between the temperature outside the cabinet and the temperature in the first channel.

In a preferred embodiment of the present invention, the control device 30 is further used to control the opening of the air conditioner 14 and control the fresh air intake fan when the temperature outside the cabinet is not less than the temperature in the first channel and lasts for a second set time. 20 and outlet fan 21 are closed.

In this embodiment, when the temperature outside the cabinet is high, the air conditioner 14 inside the cabinet is still used for cooling, and when the air conditioner 14 is cooling, the fresh air inlet valve of the fresh air inlet fan 20 acts on the airflow of the first channel 17 with a positive pressure. Down closes, and the air outlet damper of air outlet fan 21 closes under the airflow effect of second channel 18 partial negative pressures, prevents the entry of dust outside the cabinet. In the technical solution of the present invention, the control device can realize the control function by software or by hardware. When using hardware, the control device includes a comparator, a timer and a processor. The comparator is used to compare the The relationship between the temperature and the temperature in the first channel. When the temperature information detection device is a temperature difference sensor, the comparator is used to compare the relationship between the temperature outside the cabinet and the temperature in the first channel. and the processor is respectively connected with the timer and the comparator signal, and is used to control the switch state of the air conditioner 14, the fresh air inlet fan 20 and the outlet fan 21 for the different signals output by the comparator and the timer.

The first setting time and the second setting time are set according to experience, and the two can be equal or not. For example, the first setting time can be set to 5 minutes (minutes), and the second setting time can be set is 6min, but the present invention is not limited to these specific numerical values.

Another embodiment of a refrigeration control system for a cabinet of the present invention is shown in FIG. 6 , which is a schematic structural diagram of another embodiment of a refrigeration control system for a cabinet of the present invention. The refrigeration control system further includes:

The front door switch sensor 33 is used to detect the switch state of the front door;

The back door switch sensor 34 is used to detect the switch state of the back door;

Alarm device 40 is connected with control device 30 signal;

The control device 30 is also connected with the front door switch sensor 33 and the rear door switch sensor 34 respectively, and is further used to output alarm information to the alarm device 40 when the front door is opened and/or the rear door is opened.

In order to ensure that the cabinet is a closed system, it is also necessary to detect the switching status of the front door 11 and the back door 12. When the front door 11 is opened, the back door 12 is opened, or both the front door 11 and the back door 12 are in an open state, the control device 30 outputs alarm information, and the alarm device 40 Alarm according to the alarm information. The warning device 40 has multiple forms, which can be a buzzer or an indicator light.

Please continue to refer to Figure 6, preferably, the refrigeration control system of the cabinet of the present invention further includes:

The water immersion sensor 35 is used to detect the state of water leakage in the cabinet;

The control device 30 is also signal-connected with the water sensor 35, and is further used for outputting alarm information when water leaks in the cabinet.

In this embodiment, the air conditioner 14 in the cabinet may leak water during the cooling process, or the humidity in the cabinet may form condensed water. Therefore, it is necessary to add a water immersion sensor 35 to detect whether water leakage occurs in the cabinet. When water leaks, the control device 30 outputs alarm information, and the alarm device 40 reports an alarm. The installation position of the water immersion sensor 35 can be set according to actual experience, and is generally installed in a position in the cabinet where condensed water is likely to be generated.

Please continue to refer to Figure 6, preferably, the refrigeration control system of the cabinet of the present invention further includes:

The display panel 41 located on the front door is connected with the control device 30 for signals.

In this embodiment, the display panel 41 is used to display the temperature information received by the control device 30 outside the cabinet, the temperature information in the first channel, the switch status of the air conditioner, the switch status of the front door, the switch status of the rear door, and The status of water leakage in the cabinet can also display the voltage information and current information of each electronic device in the cabinet. By adding a display panel 41 on the front door, the operator can visually see the status of various equipment in the cabinet, judge possible bad status that may be about to happen based on experience, and take preventive measures early. The display panel 41 can be a color touch screen or a non-touch screen with buttons. In addition, in addition to the above display, it can also display information of other equipment in the cabinet, such as uninterruptible power supply and power distribution unit.

Please continue to refer to Figure 6, preferably, the refrigeration control system of the cabinet of the present invention further includes:

The display terminal 42 is signal-connected to the control device 30 .

In a preferred embodiment of the present invention, the display terminal 42 is used to locally view or remotely view the temperature information outside the cabinet received by the control device 30, the temperature information in the first channel, the switch status of the air conditioner, the switch status of the front door, the back door The switch status of the cabinet, as well as the status of water leakage in the cabinet, and the voltage information and current information of each electronic device in the cabinet can also be checked. The display terminal can specifically be a computer. For example, the control device 30 can be connected to a local area network or the Internet to realize the computer to locally view or remotely view the status of various equipment in the cabinet. Since the operator does not need to check outside the cabinet at any time, it can save a lot. Labor costs. In addition to being input to the alarm device 40, the alarm information output by the control device 30 can also be input to the display terminal 42. For example, the alarm information is sent to a designated electronic mailbox or mobile phone through an electronic mailbox or a short message, which can realize remote monitoring. The truly unattended requirement greatly saves labor costs.

Preferably, the display terminal 42 is a mobile phone. The mobile phone is the personal item of the operator. When the mobile phone receives an alarm message, the operator can immediately know the status of the cabinet, so he can immediately go to the scene to troubleshoot the problem.

In any of the above embodiments, the control device can also detect the working mode of the uninterruptible power supply in the cabinet. And increase the power distribution unit connected with the uninterruptible power supply, the output end of the power distribution unit has multiple switches, each switch can be connected to an electronic device or fresh air inlet fan or outlet fan, etc., the power distribution unit can be connected with the control device Signal connection, the control device can control different switches of the power distribution unit according to the obtained information to realize the opening or closing of each device. The control device can also detect the total voltage and current of the power distribution unit, as well as the switching status of each switch, so as to clearly judge the current load usage in the cabinet and the power consumption of IT equipment in a single cabinet during long-term use. And a humidity sensor can be added in the first channel, and a temperature and humidity sensor can be added in the second channel to detect the temperature and humidity of each channel. When the electronic equipment in the cabinet is working abnormally, such as the air conditioner should be turned on but actually turned off, the uninterrupted voltage failure or the voltage or current of the power distribution unit is not within the normal range, when the cabinet is in an abnormal situation, such as the front door is not closed and/or or the rear door is not closed, the control device will send out an alarm message to notify the operator to ensure the safe operation of the cabinet.

An embodiment of the present invention also provides a cooling control method for a cabinet, as shown in FIG. 7 , which is a schematic flowchart of an embodiment of a cooling control method for a cabinet of the present invention. The cooling control method includes:

Step 101, acquiring temperature information outside the cabinet and temperature information inside the first channel;

Step 102, judging whether the temperature outside the cabinet is lower than the temperature in the first channel for the first set time; if yes, execute step 103; otherwise, return to step 101;

Step 103, controlling the air conditioner to be turned off, and controlling the fresh air inlet fan and the outlet fan to be turned on.

In the embodiment of the present invention, when the temperature outside the cabinet is lower than the temperature inside the first channel for a first set time, the cold source outside the cabinet can be used to cool the electronic equipment inside the cabinet, further saving energy. Reduce energy consumption and improve energy utilization.

On the basis of an embodiment of the cooling control method for the cabinet, the cooling control method further includes:

When the temperature outside the cabinet is not less than the temperature in the first channel and lasts for a second set time, the air conditioner in the cabinet is controlled to be turned on, and the fresh air inlet fan and outlet fan are controlled to be turned off.

As shown in FIG. 8, FIG. 8 is a schematic flow chart of a specific embodiment of a cooling control method for a cabinet according to the present invention. The cooling control method includes:

Step 201, acquiring temperature information outside the cabinet and temperature information inside the first channel;

Step 202, judging whether the temperature outside the cabinet is lower than the temperature in the first channel for the first set time; if yes, execute step 203; otherwise, execute step 204;

Step 203, controlling the air conditioner to be turned off, and controlling the fresh air inlet fan and outlet fan to be turned on;

Step 204, judging whether the temperature outside the cabinet is not less than the temperature in the first channel and lasts for the second set time; if yes, execute step 205; otherwise, return to step 201;

Step 205, controlling the air conditioner to turn on, and controlling the fresh air inlet fan and the outlet fan to turn off.

A cooling control method for a cabinet in a preferred embodiment of the present invention further includes:

Obtain the switch status of the front door and the switch status of the back door;

When the front door is opened and/or the rear door is opened, an alarm message is output.

A cooling control method for a cabinet in a preferred embodiment of the present invention further includes:

Obtain the status of water leakage in the cabinet;

When water leaks inside the cabinet, an alarm message will be output.

Based on the same inventive concept, the present invention also provides a cooling control device for a cabinet, as shown in FIG. 9 , which is a schematic structural diagram of an embodiment of the cooling control device for a cabinet of the present invention. The cooling control device includes:

An acquisition device 51, configured to acquire temperature information outside the cabinet and temperature information in the first channel;

The control device 52 is used to control the air conditioner to be turned off and the fresh air inlet fan and outlet fan to be turned on when the temperature outside the cabinet is lower than the temperature in the first channel for a first set time.

Preferably, the control device 52 is further used to control the air conditioner in the cabinet to turn on, and control the fresh air inlet fan and outlet fan to turn off when the temperature outside the cabinet is not less than the temperature in the first channel and lasts for a second set time. .

Preferably, the obtaining device 51 is further used to obtain the switch state of the front door and the switch state of the rear door; the control device 52 is further used to output alarm information when the front door and/or the rear door are opened.

Preferably, the obtaining device 51 is further used to obtain the state of water leakage in the cabinet; the control device 52 is further used to output an alarm message when water leaks in the cabinet.

The above-mentioned refrigeration control method, device and system of the present invention are not only applicable to the cabinets located in the machine room, but also can be applied to places with poorer environment outside the cabinets.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (18)

1. A cabinet, characterized in that it comprises a closed cabinet with a front door (11) and a rear door (12), a carrier (13) and an air conditioner (14) located in the cabinet for carrying electronic equipment, wherein , the carrying frame (13) facing the front door (11) is provided with a sealing plate for sealing the gap between the electronic equipment and the cabinet body, the front door (11) and the carrying frame ( 13) A first channel (17) is formed, the rear door (12) and the carrier (13) form a second channel (18), the air outlet (15) of the air conditioner (14) is connected to the first channel (17), and the air return port (16) of the air conditioner (14) communicates with the second channel (18). 2. The cabinet according to claim 1, characterized in that, the air conditioner (14) is located at the bottom of the cabinet; or, the air conditioner (14) is located at the top of the cabinet. 3. The cabinet according to claim 1 or 2, further comprising: The fresh air intake fan (20) located at the lower part of the front door (11) has a filter for filtering the fresh air outside the cabinet; An air outlet fan (21) located on the top plate of the cabinet and opposite to the second channel (18). 4. A cooling control system for a cabinet, comprising the cabinet according to claim 3, further comprising: The temperature information detection device is used to detect the temperature information inside and outside the cabinet; The control device (30) is connected to the temperature information detection device, the air conditioner (14), the fresh air inlet fan (20) and the outlet fan (21) respectively, for when the temperature outside the cabinet is lower than the temperature in the first channel When the temperature lasts for a first set time, the air conditioner (14) is controlled to be turned off, and the fresh air inlet fan (20) and the outlet fan (21) are controlled to be turned on. 5. The cooling control system of the cabinet according to claim 4, wherein the temperature information inside and outside the cabinet is the difference between the temperature outside the cabinet and the temperature in the first channel, and the temperature detection device is a temperature difference sensor; or, The temperature information inside and outside the cabinet is the temperature outside the cabinet and the temperature in the first channel, and the temperature detection device includes: a first temperature sensor (31), which is arranged outside the cabinet and used to detect the temperature outside the cabinet information; the second temperature sensor (32), which is arranged in the first channel (17), is used to detect temperature information in the first channel. 6. The cooling control system of the cabinet according to claim 4, characterized in that, the control device (30) is further used for when the temperature outside the cabinet is not less than the temperature in the first channel and lasts for a second set time , controlling the air conditioner (14) to turn on, and controlling the fresh air inlet fan (20) and the outlet fan (21) to turn off. 7. The refrigeration control system of the cabinet according to claim 4, further comprising: Front door switch sensor (33), used to detect the switch state of the front door; A rear door switch sensor (34), used to detect the switch state of the rear door; An alarm device (40) is signal-connected to the control device (30); The control device (30) is also connected to the front door switch sensor (33) and the rear door switch sensor (34) in signal connection, and is further used to output alarm information to the alarm device when the front door is opened and/or the rear door is opened (40) Call the police. 8. The cooling control system of the cabinet according to claim 7, further comprising: The water immersion sensor (35) is used to detect the state of water leakage in the cabinet; The control device (30) is also connected with the signal of the water immersion sensor (35), and is further used for outputting alarm information to the alarm device (40) for alarm when water leaks in the cabinet. 9. The refrigeration control system for a cabinet according to any one of claims 4 to 8, further comprising: The display panel (41) located on the front door is signal-connected with the control device (30). 10. The refrigeration control system of the cabinet according to claim 9, further comprising: The display terminal (42) located outside the cabinet is signal-connected to the control device (30). 11. A cabinet refrigeration control method using the cabinet refrigeration control system according to claim 4, characterized in that it comprises: Obtaining temperature information outside the cabinet and temperature information inside the first channel; When the temperature outside the cabinet is lower than the temperature in the first passage for the first set time, the air conditioner is controlled to be turned off, and the fresh air inlet fan and outlet fan are controlled to be turned on. 12. The cooling control method of the cabinet according to claim 11, further comprising: When the temperature outside the cabinet is not less than the temperature in the first channel and lasts for a second set time, the air conditioner is controlled to be turned on, and the fresh air inlet fan and outlet fan are controlled to be turned off. 13. The cooling control method for a cabinet according to claim 11 or 12, further comprising: Obtain the switch status of the front door and the switch status of the back door; When the front door is opened and/or the rear door is opened, an alarm message is output. 14. The cooling control method of the cabinet according to claim 13, further comprising: Obtain the status of water leakage in the cabinet; When water leaks inside the cabinet, an alarm message will be output. 15. A refrigeration control device for a cabinet, characterized in that it comprises: acquiring equipment, configured to acquire temperature information outside the cabinet and temperature information in the first channel; The control device is used to control the air conditioner to be turned off and the fresh air inlet fan and outlet fan to be turned on when the temperature outside the cabinet is lower than the temperature in the first channel for a first set time. 16. The refrigeration control device for a cabinet according to claim 15, wherein the control device is further used to control the temperature of the cabinet when the temperature outside the cabinet is not lower than the temperature in the first channel for a second set time. The internal air conditioner is turned on, and the fresh air inlet fan and outlet fan are controlled to be turned off. 17. The refrigeration control device for a cabinet according to claim 15 or 16, wherein the acquiring device is further used to acquire the switch state of the front door and the switch state of the rear door; the control device is further used to obtain the switch state of the current door and /or when the rear door is opened, an alarm message is output. 18 . The refrigeration control device for a cabinet according to claim 17 , wherein the acquisition device is further used to obtain a state of water leakage in the cabinet; and the control device is further used to output an alarm message when water leaks in the cabinet.