Utility model content
The utility model provides the refrigeration control system of a kind of rack and a kind of rack, in order to improve the refrigerating efficiency of rack, and reduces the energy consumption for cooling of rack.
The utility model rack, the cabinet that comprises the sealing with Qianmen and back door, be positioned at carrier and the air-conditioning of described cabinet loading electronic equipment, wherein, described carrier is simultaneously provided with the plugging plate for gap between electronic equipment described in shutoff and described cabinet towards described Qianmen, described Qianmen and described carrier form first passage, described back door and described carrier form second channel, the air outlet of described air-conditioning communicates with described first passage, and the return air inlet of described air-conditioning communicates with described second channel.
In technical solutions of the utility model, because the carrier of loading electronic equipment and the Qianmen of cabinet and back door form respectively first passage and second channel, first passage communicates with the air outlet of air-conditioning, second channel communicates with the return air inlet of air-conditioning, therefore, the cold airflow flowing out from air outlet is horizontally through electronic equipment through first passage and flows into second channel formation thermal current again, thermal current is sucked by return air inlet again, therefore in the rack of sealing, in cold airflow and thermal current, circulation time can high degree of isolation, heat exchange efficiency is higher, avoid hot and cold air to mix and cause scattering and disappearing of cold air, therefore, can improve the refrigerating efficiency of rack, and reduce the energy consumption for cooling of rack.And, because cold airflow is horizontally through electronic equipment, therefore also can avoid the poor problem of electronic equipment refrigeration at top.
Preferably, described air-conditioning is positioned at the bottom of described cabinet; Or described air-conditioning is positioned at the top of described cabinet.
In cabinet, the position of air-conditioning can have multiple, as long as realize cold airflow that the air outlet of air-conditioning flows out at first passage, thermal current flows into the return air inlet of air-conditioning in second channel, for example air-conditioning can be positioned at the top of rack or be positioned at the bottom of rack, and air-conditioning also can be arranged on the side of rack.When air-conditioning is positioned at the bottom of rack, refrigeration is more excellent.
Preferably, described rack also comprises:
The new wind air intake fan that is positioned at bottom, described Qianmen, has the screen pack for the external new wind of Setting Tank;
Be positioned at described cabinet top board the air-out fan relative with described second channel position.
In the preferred technical scheme of the utility model, in first passage bottom, increase new wind air intake fan, on second channel top, increase air-out fan, when the external temperature of rack is lower, can utilize the outer new wind of cabinet to enter rack, realize the low-temperature receiver refrigeration of utilizing outside cabinet, therefore, can further reduce energy consumption, improve energy utilization rate.
The refrigeration control system of the utility model rack, comprises the above-mentioned rack with new wind air intake fan and air-out fan, also comprises:
Temperature information checkout gear, for detection of the temperature information inside and outside cabinet;
Control device, be connected with air-out fan signal with described temperature information checkout gear, air-conditioning, new wind air intake fan respectively, when being less than the temperature in first passage and continuing the first setting duration for the temperature outside cabinet, control described air-conditioning and close, and control described new wind air intake fan and the unlatching of described air-out fan.
In the refrigeration control system of the utility model rack, temperature outside cabinet being detected is less than the temperature in first passage, and when this situation continues the first setting duration, the air-conditioning in rack is closed, open new wind air intake fan and air-out fan, utilize the low-temperature receiver outside cabinet to freeze to the electronic equipment in rack, further reduce energy consumption for cooling, improve energy utilization rate.
Preferably, the inside and outside temperature information of described cabinet is temperature outside cabinet and the difference of the temperature in first passage, and described temperature-detecting device is temperature sensor; Or,
The inside and outside temperature information of described cabinet is temperature outside cabinet and the temperature in first passage, and described temperature-detecting device comprises: the first temperature sensor, is arranged at outside described cabinet, for detection of the temperature information outside cabinet; The second temperature sensor, is arranged in described first passage, for detection of the temperature information in first passage.
When the temperature that detecting box is external and the temperature in first passage, can adopt temperature sensor, directly obtain temperature outside cabinet and the difference of the temperature in first passage, temperature outside cabinet is less than the temperature in first passage, be that described difference is while being less than zero and continue first while setting duration, control described air-conditioning and close, and control described new wind air intake fan and the unlatching of described air-out fan; Also two temperature sensors external temperature of detecting box and the temperature in first passage respectively be can adopt, by control device, temperature outside cabinet and the size of the temperature in first passage further judged.
Preferably, described control device comprises whether the temperature judging outside cabinet is less than the comparator of the temperature in first passage, timer, and the processor being connected with described timer signal with described comparator respectively, when the temperature outside cabinet is not less than the temperature in first passage and continues the second setting duration, described processor is controlled described air-conditioning and is opened, and controls described new wind air intake fan and described air-out fan cuts out.
Preferably, the refrigeration control system of described rack, also comprises:
Front door switch sensor, for detection of the on off state at Qianmen;
Rear door switch sensor, for detection of the on off state at back door;
Warning device, is connected with described control device signal;
Described control device, is also connected with described rear door switch sensor signal with described front door switch sensor respectively, is further used for opening and/or when back door is opened, output alarm information to warning device is reported to the police when Qianmen.
In order to guarantee in cabinet, for closed system, also to need to detect the on off state at Qianmen and back door, when Qianmen and/or back door are during in open mode, control device output alarm information, warning device is reported to the police according to warning message.
Preferably, the refrigeration control system of described rack, also comprises:
Water sensor, for detection of the state that leaks in cabinet;
Described control device, is also connected with described water sensor signal, is further used for when rack leaks, and controls output alarm information.
Air-conditioning in cabinet may leak in process of refrigerastion, or the larger formation condensed water of the humidity in cabinet, therefore, need to increase in water sensor detection cabinet and whether occur to leak, while leaking in cabinet, output alarm information, warning device is reported to the police.
Preferably, the refrigeration control system to above-mentioned any rack, also comprises:
Be positioned at the display floater on described Qianmen, be connected with described control device signal.
Described display floater can be for showing that temperature information outside the cabinet that described control device receives, the temperature information in first passage, the on off state of air-conditioning are, the on off state at the on off state at Qianmen, back door, and the state that leaks in cabinet, also can show information of voltage and the current information of each electronic equipment in rack.At Qianmen, increase display floater, operating personnel can intuitively see the state of the various device in rack, rule of thumb judge the imminent defective mode of possibility, make earlier precautionary measures.In addition, except above-mentioned demonstration, can also show the state of other equipment in rack, as uninterrupted power supply and power distribution unit.
Preferably, the refrigeration control system of described rack, also comprises:
Be positioned at the display terminal outside described cabinet, be connected with described control device signal.
In the preferred technical scheme of the utility model, display terminal can be checked or long-rangely check that temperature information outside the cabinet that control device receives, the temperature information in first passage, the on off state of air-conditioning are, the on off state at the on off state at Qianmen, back door for this locality, and the state that leaks in cabinet, also can be for checking information of voltage and the current information of each electronic equipment in rack.Display terminal is specifically as follows computer, as control device being connected to local area network (LAN) or the Internet, realize that computer this locality is checked or the long-range state of checking various device in rack, because operating personnel are without checking outward at rack at any time, therefore can larger saving human cost.The warning message of control device output is except inputing to warning device, can also input to display terminal, for example warning message is sent to e-mail or the mobile phone of appointment by the mode of E-mail address or note, can realize remote monitoring, reach real unattended requirement, greatly saved human cost.
Embodiment
In order to reduce the energy consumption for cooling of rack, improve energy utilization rate, the utility model embodiment provides refrigeration control method, the Apparatus and system of a kind of rack and a kind of rack.In this technical scheme, cabinet, for sealing cabinet, is kept apart hot and cold air respectively by first passage and second channel in cabinet, and scattering and disappearing of the cold air of avoiding hot and cold air to mix causing, therefore, has improved refrigerating efficiency, and then improved energy utilization rate.For making the purpose of this utility model, technical scheme and advantage clearer, below lift specific embodiment the utility model is described in further detail.
The utility model embodiment provides a kind of rack, as shown in Figure 2, Fig. 2 is the structural representation of the utility model rack the first embodiment, described rack comprises the cabinet of the sealing with 11He back door, Qianmen 12, be positioned at cabinet for carrier 13 and the air-conditioning 14 of loading electronic equipment, wherein, towards Qianmen, 11 one sides are provided with the plugging plate for gap between shutoff electronic equipment and cabinet to carrier 13, Qianmen 11 simultaneously forms first passage 17 with carrier 13 near Qianmen, back door 12 simultaneously forms second channel 18 with carrier 13 near back door, the air outlet 15 of air-conditioning 14 communicates with first passage 17, the return air inlet 16 of air-conditioning 14 communicates with second channel 18.
In the utility model the first embodiment, because the carrier 13 of loading electronic equipment and the 11He back door, Qianmen 12 of cabinet form respectively first passage 17 and second channel 18, and adopt plugging plate by first passage 17 and carrier 13 high degree of isolation, first passage 17 communicates with the air outlet 15 of air-conditioning 14, second channel 18 communicates with the return air inlet 16 of air-conditioning 14, therefore, the cold airflow flowing out from air outlet 15 is horizontally through electronic equipment formation thermal current through first passage 17 and flows into second channel 18 again, thermal current is sucked by return air inlet 16 again, therefore in the rack of sealing, in cold airflow and thermal current, circulation time can high degree of isolation, heat exchange efficiency is higher, avoid hot and cold air to mix and cause scattering and disappearing of cold air, therefore, can improve the refrigerating efficiency of rack, and reduce the energy consumption for cooling of rack.And, because cold airflow is horizontally through electronic equipment, therefore also can avoid the poor problem of electronic equipment refrigeration at top.And kind of refrigeration cycle is closed operation in whole rack, in rated load operation situation, in refrigeration, the airflow circulating path of circulation is short, and refrigerating efficiency is high, and condensed water is low, and interior environment is relatively stable.
Carrier comprises the bracket of column and loading electronic equipment, on carrier, electronic equipment not necessarily can take carrier completely, therefore, for the better refrigerating efficiency that improves, can on the column near Qianmen one side, plugging plate be installed in the vacant district of carrier, blind plate or adopt other close measures for example, guarantees the high degree of isolation of hot and cold air.Electronic equipment can be take server as example for server or other are for the electronic equipment in rack, and the both sides of server have fan, the cold airflow of first passage can be sucked through with server heat exchange after form thermal current and enter second channel.
The installation site of the air-conditioning 14 of the utility model rack is not limit, for example be positioned at the top of cabinet, be positioned at the bottom of cabinet, can also be positioned at the top outside cabinet, be positioned at the bottom outside cabinet, be positioned at outside side cabinet, as long as guarantee that the air outlet 15 of air-conditioning 14 is communicated with first passage 17, and guarantee that the return air inlet 16 of air-conditioning 14 is communicated with second channel 18.As shown in Figure 2, air-conditioning 14 is positioned at the bottom of cabinet.When air-conditioning 14 is positioned at cabinet inner bottom part, flowing as being with in Fig. 2 as shown in arrow line segment of air-flow, from the air outlet 15 of air-conditioning 14, blow out cold airflow, cold airflow carries out heat exchange formation thermal current and enters second channel 18 through electronic equipment and with electronic equipment in the uphill process of first passage 17, return air inlet 16 air draught effects due to air-conditioning 14, thermal current flows into the return air inlet 16 of air-conditioning 14 downwards, under the cooling effect of the evaporator of air-conditioning 14, thermal current is converted to cold airflow to be blown out from air outlet 15 again, the evaporator of air-conditioning 14 can be coil pipe, be communicated with the compressor of air-conditioning 14.
The second embodiment of the utility model rack, as shown in Figure 3, Fig. 3 is the structural representation of the utility model rack the second embodiment, air-conditioning 14 is positioned at the top of cabinet.When air-conditioning 14 is positioned at cabinet inner top, flowing as being with in Fig. 3 as shown in arrow line segment of air-flow, from the air outlet 15 of air-conditioning 14, blow out cold airflow, cold airflow carries out heat exchange formation thermal current and enters second channel 18 through electronic equipment and with electronic equipment in the decline process of first passage 17, return air inlet 16 air draught effects due to air-conditioning 14, thermal current upwards flows into the return air inlet 16 of air-conditioning 14, under the evaporator cools effect of air-conditioning 14, thermal current is converted to cold airflow and from air outlet 15, blows out again.
The utility model the 3rd embodiment designs on the first embodiment or the second embodiment basis, and as shown in Figure 4, Fig. 4 is the structural representation of the utility model rack the 3rd embodiment, and described rack also comprises:
The new wind air intake fan 20 that is positioned at 11 bottoms, Qianmen, has the screen pack for the external new wind of Setting Tank;
Be positioned at cabinet top board the air-out fan 21 relative with second channel 18 positions.
In the utility model the 3rd embodiment, in first passage 17 bottoms, increase new wind air intake fan 20, on second channel 18 tops, increase air-out fan 21, when the external temperature of rack is lower, the existing rack-mounted standard cabinet with closed built-in circulation air path cannot utilize the lower ambient temperature in rack outside to realize the cooling to electronic equipment, can not reduce efficiently the energy consumption of system, be unfavorable for environment protecting and power-saving, easily cause the waste of the energy, and the utility model embodiment can utilize the outer new wind of cabinet to enter rack, realize the low-temperature receiver refrigeration of utilizing outside cabinet, therefore, can further reduce energy consumption, improve energy utilization rate.
The utility model embodiment also provides a kind of refrigeration control system of rack, and as shown in Figure 5, Fig. 5 is the refrigeration control system one example structure schematic diagram of the utility model rack, and described refrigeration control system comprises the rack of the 3rd embodiment, also comprises:
Temperature information checkout gear, for detection of the temperature information inside and outside cabinet;
Control device 30, be connected with air-out fan 21 signals with temperature information checkout gear, air-conditioning 14, new wind air intake fan 20 respectively, when being less than the temperature in first passage and continuing the first setting duration for the temperature outside cabinet, control air-conditioning 14 and close, and control new wind air intake fan 20 and 21 unlatchings of air-out fan.
In this embodiment, temperature outside cabinet being detected is less than the temperature in first passage, and when this situation continues the first setting duration, the air-conditioning in rack 14 is closed, open new wind air intake fan 20 and air-out fan 21, utilize the low-temperature receiver outside cabinet to freeze to the electronic equipment in rack, reduce the time of the compressor work of air-conditioning 14, therefore can further reduce energy consumption for cooling, improve energy utilization rate.As shown in Figure 5, in rack, air-conditioning 14 is closed, while only utilizing the outer low-temperature receiver refrigeration of cabinet, air current flow as in Fig. 5 with as shown in the line segment of arrow, the outer cold airflow of cabinet is sucked in first passage 17 by new wind air intake fan 20 through screen pack, cold airflow is shunted laterally through electronic equipment and is formed thermal current with electronic equipment heat exchange and enters second channel 18 in the uphill process of first passage 17, and by 21 sucking-offs of air-out fan to cabinet.
Preferably, the inside and outside temperature information of described cabinet is temperature outside cabinet and the difference of the temperature in first passage, and described temperature-detecting device is temperature sensor; Or, shown in Fig. 5,
The inside and outside temperature information of described cabinet is temperature outside cabinet and the temperature in first passage, and described temperature-detecting device comprises: the first temperature sensor 31, is arranged at outside cabinet, for detection of the temperature information outside cabinet; The second temperature sensor 32, is arranged in first passage 17, for detection of the temperature information in first passage.
The inside and outside temperature information of cabinet can have multiple, a kind ofly can adopt temperature sensor, directly obtain temperature outside cabinet and the difference of the temperature in first passage, temperature outside cabinet is less than the temperature in first passage, be that described difference is while being less than zero and continue first while setting duration, control air-conditioning 14 and close, and control new wind air intake fan 20 and 21 unlatchings of air-out fan; Also two temperature sensors external temperature of detecting box and the temperature in first passage respectively be can adopt, by control device 30, temperature outside cabinet and the size of the temperature in first passage further judged.
In the utility model preferred embodiment, described control device 30 comprises whether the temperature judging outside cabinet is less than the comparator of the temperature in first passage, timer, and the processor being connected with timer signal with comparator respectively, when the temperature outside cabinet is not less than the temperature in first passage and continues the second setting duration, described processor is controlled air-conditioning 14 and is opened, and controls new wind air intake fan 20 and air-out fan 21 cuts out.
In this embodiment, when temperature outside cabinet is higher, still adopt air-conditioning 14 refrigeration in cabinet, and during air-conditioning 14 refrigeration, under the airflow function that the new wind air inlet valve of new wind air intake fan 20 is pressed in first passage 17 polarizations, close, the air-out air-valve of air-out fan 21 cuts out under the airflow function of second channel 18 inclined to one side negative pressure, prevents entering of the outer dust of cabinet.In technical solutions of the utility model, described control device both can adopt software to realize and control function, also can realize and control function by hardware, while adopting hardware, control device comprises comparator, timer and processor, comparator is for the temperature outside comparison cabinet and the magnitude relationship of the temperature in first passage, when temperature information checkout gear is temperature sensor, comparator is for comparing temperature and the difference of the temperature in first passage and zero the relation outside cabinet, timer is for carrying out timing to different states, and processor is connected with comparator signal with timer respectively, for controlling air-conditioning 14 for the different signal of comparator and timer output, the on off state of new wind air intake fan 20 and air-out fan 21.
The first setting duration, second is set duration and is rule of thumb set, both can equate also can be unequal, as the first setting duration can be set as 5min(minute), second sets duration can be set as 6min, but the utility model is not limited to these concrete numerical value.
Another embodiment of the refrigeration control system of a kind of rack of the utility model, as shown in Figure 6, Fig. 6 is another example structure schematic diagram of refrigeration control system of the utility model rack, described refrigeration control system also comprises:
Front door switch sensor 33, for detection of the on off state at Qianmen;
Rear door switch sensor 34, for detection of the on off state at back door;
Warning device 40, is connected with control device 30 signals;
Control device 30, is also connected with rear door switch sensor 34 signals with front door switch sensor 33 respectively, is further used for opening and/or when back door is opened, output alarm information to warning device 40 is reported to the police when Qianmen.
In order to guarantee in cabinet to be closed system, also need to detect the on off state at 11He back door, Qianmen 12, when open at Qianmen 11, open at back door 12 or 11He back door, Qianmen 12 during all in open mode, control device 30 output alarm information, warning device 40 is reported to the police according to warning message.The form of warning device 40 has multiple, can be buzzer, can be also indicator light.
Shown in Fig. 6, preferred, the refrigeration control system of the utility model rack, also comprises:
Water sensor 35, for detection of the state that leaks in cabinet;
Control device 30, is also connected with water sensor 35 signals, while being further used for leaking in cabinet, and output alarm information.
In this embodiment, air-conditioning 14 in cabinet may leak in process of refrigerastion, or the larger formation condensed water of the humidity in cabinet, therefore, need to increase in water sensor 35 detection cabinets and whether occur to leak, while leaking in cabinet, control device 30 output alarm information, warning device 40 is reported to the police.The installation site of water sensor 35 can, according to practical experience setting, generally be installed on the position that easily produces condensed water in cabinet.
Shown in Fig. 6, preferred, the refrigeration control system of the utility model rack, also comprises:
Be positioned at the display floater 41 on Qianmen, be connected with control device 30 signals.
In this embodiment, temperature information outside the cabinet that described display floater 41 receives for display control unit 30, the temperature information in first passage, the on off state of air-conditioning, the on off state at the on off state at Qianmen, back door, and the state that leaks in cabinet, also can show information of voltage and the current information of each electronic equipment in rack.On Qianmen, increase display floater 41, operating personnel can intuitively see the state of the various device in rack, rule of thumb judge the imminent defective mode of possibility, make earlier precautionary measures.Described display floater 41 can shield for color touch, also can, for having the non-touch-screen of button, in addition, except above-mentioned demonstration, can also show the information of other equipment in rack, as uninterrupted power supply and power distribution unit.
Shown in Fig. 6, preferred, the refrigeration control system of the utility model rack, also comprises:
Display terminal 42, is connected with control device 30 signals.
In the utility model preferred embodiment, display terminal 42 is checked for this locality or long-range temperature information, the temperature information in first passage, the on off state of air-conditioning, the on off state at the on off state at Qianmen, back door of checking outside the cabinet that control device 30 receives, and the state that leaks in cabinet, also can check information of voltage and the current information of each electronic equipment in rack.Display terminal is specifically as follows computer, as control device 30 being connected to local area network or the Internet, realize that computer this locality is checked or the long-range state of checking various device in rack, because operating personnel are without checking outward at rack at any time, therefore can larger saving human cost.The warning message of control device 30 outputs is except inputing to warning device 40, can also input to display terminal 42, for example warning message is sent to e-mail or the mobile phone of appointment by the mode of E-mail address or note, can realize remote monitoring, reach real unattended requirement, greatly saved human cost.
Preferably, display terminal 42 is mobile phone.Mobile phone is as operator's article next to the skin, and when mobile phone is received warning message, operator can know that situation appears in rack at once, therefore can be at once to on-the-spot investigation of carrying out problem.
In above-mentioned arbitrary embodiment, described control device, can also detect the working method of uninterrupted power supply in rack.And the power distribution unit that increase is connected with uninterrupted power supply, the output of power distribution unit there are a plurality of switches, each switch can connect an electronic equipment or new wind air intake fan or air-out fan etc., power distribution unit can be connected with control device signal, and control device realizes the unlatching of each equipment or cuts out according to the different switches of the information controllable power allocation units that obtain.Control device also can detect the total voltage of power distribution unit, and total current, and the on off state of each switch can clearly judge the load service condition in current rack, and the power consumption situation of information technoloy equipment in single rack while using for a long time.And in first passage, can increase humidity sensor, in second channel, increase Temperature Humidity Sensor, for detection of the temperature and humidity situation of individual passage.When rack inner electronic equipment abnormal work, as air-conditioning should open actual for closing, the voltage of uninterrupted voltage failure or power distribution unit or electric current be in normal scope, when rack is during in abnormal condition, as do not closed and/or back door is not closed at Qianmen, all by control device, send alarm information noticing operator, guarantee the safe operation of rack.
The utility model embodiment also provides a kind of refrigeration control method of rack, and as shown in Figure 7, Fig. 7 is the refrigeration control method one embodiment schematic flow sheet of the utility model rack, and described refrigeration control method comprises:
Step 101, obtain temperature information outside cabinet and the temperature information in first passage;
Step 102, judge whether temperature outside cabinet is less than the temperature in first passage and continues first and set duration; If so, perform step 103; Otherwise, return to step 101;
Step 103, control air-conditioning are closed, and control new wind air intake fan and the unlatching of air-out fan.
In the utility model embodiment, the temperature outside cabinet is lower than the temperature in first passage, and continues first while setting duration, can utilize the low-temperature receiver outside rack to carry out the electronic equipment refrigeration in cabinet, further energy savings, reduces energy consumption, improves energy utilization rate.
On the basis of refrigeration control method one embodiment of rack, described refrigeration control method also comprises:
Temperature outside cabinet is not less than temperature in first passage and continues second while setting duration, controls air-conditioning in rack and opens, and control new wind air intake fan and air-out fan cuts out.
As shown in Figure 8, Fig. 8 is the schematic flow sheet of the refrigeration control method specific embodiment of the utility model rack, and described refrigeration control method comprises:
Step 201, obtain temperature information outside cabinet and the temperature information in first passage;
Step 202, judge whether temperature outside cabinet is less than the temperature in first passage and continues first and set duration; If so, perform step 203; Otherwise, execution step 204;
Step 203, control air-conditioning are closed, and control new wind air intake fan and the unlatching of air-out fan;
Step 204, judge whether temperature outside cabinet is not less than the temperature in first passage and continues second and set duration; If so, perform step 205; Otherwise, return to step 201;
Step 205, control air-conditioning and open, and control new wind air intake fan and air-out fan cuts out.
The refrigeration control method of the preferred embodiment rack of the utility model, also comprises:
Obtain front door opening and closing state and rear door opening and closing state;
When open and/or when back door is opened at Qianmen, output alarm information.
The refrigeration control method of the preferred embodiment rack of the utility model, also comprises:
Obtain the state that leaks in cabinet;
While leaking in cabinet, output alarm information.
Utility model design based on identical, the utility model also provides a kind of refrigeration control device of rack, and as shown in Figure 9, Fig. 9 is the structural representation of refrigeration control device one embodiment of the utility model rack, and described refrigeration control device comprises:
Obtain equipment 51, for obtaining temperature information outside cabinet and the temperature information in first passage;
Control appliance 52, when being less than the temperature in first passage and continuing the first setting duration for the temperature outside cabinet, controls air-conditioning and cuts out, and controls new wind air intake fan and the unlatching of air-out fan.
Preferably, described control appliance 52 is further used for temperature outside cabinet and is not less than the temperature in first passage and continues second while setting duration, controls air-conditioning in rack and opens, and control new wind air intake fan and air-out fan cuts out.
Preferably, described in, obtain equipment 51 and be further used for obtaining the on off state at Qianmen and the on off state at back door; Described control appliance 52 is further used for opening and/or when back door is opened when Qianmen, output alarm information.
Preferably, described in, obtain equipment 51 and be further used for obtaining the state that leaks in cabinet; When described control appliance 52 is further used for leaking in cabinet, output alarm information.
Refrigeration control method, device and system that the utility model is above-mentioned, be not only applicable to be positioned at the rack of machine room, can be applied to the slightly poor place of cabinet external environment yet.
Obviously, those skilled in the art can carry out various changes and modification and not depart from spirit and scope of the present utility model the utility model.Like this, if within of the present utility model these are revised and modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model is also intended to comprise these changes and modification interior.