Air conditioner

Abstract

An air conditioner comprises a shell, the shell is provided with a first air inlet, a first air outlet, a second air inlet and a second air outlet, the first air inlet and the first air outlet are used for being communicated with the space in an equipment cabinet, and the second air inlet and the second air outlet are communicated with outside air; the air valve is arranged in the shell and provided with a first connector, a second connector, a third connector and a fourth connector, the first connector communicates with the first air inlet through a first channel, the second connector communicates with the first air outlet through a second channel, and the third connector communicates with the second air inlet through a third channel; the fourth connector communicates with the second air outlet through a fourth channel. The air valve controls communication and closing of the first connector and the third connector with the second connector and the fourth connector. And fresh air enters the equipment cabinet through the third channel and the second channel, so that air in the equipment cabinet is discharged through the first channel and the fourth channel, and the temperature in the equipment cabinet is adjusted through external low-temperature air.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning equipment, in particular to an air-conditioner. Background Art

[0002] With the rapid development of industrial technology and the digital economy, the application of various electronic devices is becoming more and more widespread. These devices are usually installed in specific cabinets and generate a lot of heat during operation. Therefore, specialized cabinet air conditioners are needed to cool and dissipate heat to ensure the normal operation and stability of the equipment.

[0003] Existing cabinet air conditioners have completely separate internal and external circulation systems, and can only regulate the temperature inside the cabinet through mechanical cooling. They are unable to use the low-temperature air from the outside environment to regulate the temperature inside the cabinet when the external temperature is low. Therefore, there is an urgent need for an air conditioner that can use the low-temperature air from the outside environment to regulate the temperature inside the cabinet when the external temperature is low. Utility Model Content

[0004] In view of the above problems in the prior art, the present application provides an air conditioner that can use the low-temperature air in the external environment to adjust the temperature inside the cabinet when the external temperature is low.

[0005] To achieve the above-mentioned objectives, the first aspect of the present application provides an air conditioner, comprising: a shell, the shell being provided with a first air inlet, a first air outlet, a second air inlet and a second air outlet, the first air inlet and the first air outlet being used to communicate with the space inside the equipment cabinet, and the second air inlet and the second air outlet being connected to the outside air; an air valve, the air valve being arranged in the shell, having a first interface, a second interface, a third interface and a fourth interface, the first interface being connected to the first air inlet through a first channel, the second interface being connected to the first air outlet through a second channel, the third interface being connected to the second air inlet through a third channel, and the fourth interface being connected to the second air outlet through a fourth channel; the air valve controlling the connection and closing of the first interface, the third interface and the second interface, and the fourth interface; an evaporator, the evaporator being arranged in the second channel; a condenser, the condenser being arranged in the fourth channel, and a coolant circulating in the evaporator and the condenser.

[0006] As described above, the connection and isolation between the first and third interfaces and the second and fourth interfaces can be controlled by controlling the air valve.

[0007] Specifically, the first interface can be connected only to the second interface, and the third interface can be connected only to the fourth interface, thereby connecting the first channel to the second channel and the third channel to the fourth channel, thereby isolating the first and second channels from the third and fourth channels. This can isolate the air circulation inside and outside the equipment cabinet.

[0008] Alternatively, the first interface can be connected only to the fourth interface, and the third interface can be connected only to the second interface, thereby connecting the first channel to the fourth channel and the third channel to the second channel, isolating the first and fourth channels from the third and second channels. This allows fresh air from the outside to enter the equipment cabinet through the third and second channels, while the air inside the equipment cabinet is exhausted outside the equipment cabinet through the first and fourth channels, thereby utilizing the low-temperature air from the outside environment to regulate the temperature inside the equipment cabinet.

[0009] The first interface can also be connected to the second and fourth interfaces simultaneously, and the third interface can be connected to the second and fourth interfaces simultaneously, thereby connecting the first channel to the second and fourth channels simultaneously, and connecting the third channel to the second and fourth channels simultaneously. In this way, the air inside the equipment cabinet can enter the second channel through the first channel and then mix with the air outside the equipment cabinet after entering the second channel through the third channel, thereby maximizing the use of natural cooling resources, thereby increasing the temperature adjustment range of the air conditioner and reducing the energy consumption of the air conditioner.

[0010] As a possible implementation of the first aspect, the air valve also has a blade and a driver, which is transmission-connected to the blade to drive the blade to rotate to a first position, a second position or a third position; when the blade is in the first position, the first interface is connected to the second interface, and the third interface is connected to the fourth interface; when the blade is in the second position, the first interface is connected to the fourth interface, and the second interface is connected to the third interface; when the blade is in the third position, the first interface is connected to the second interface and the fourth interface, and the third interface is connected to the second interface and the fourth interface.

[0011] As described above, the connection and closing of the first and third interfaces and the second and fourth interfaces can be controlled by driving the blades to rotate, thereby simplifying the control structure and reducing the cost of air conditioning.

[0012] As a possible implementation of the first aspect, the air valve and the second air inlet are at different heights.

[0013] As described above, by setting the air valve at a different height from the second air inlet, the third channel can be tilted. This allows larger water droplets that enter the third channel to flow out along the tilted channel. It also changes the air flow direction, causing smaller water droplets in the air to impact the sidewalls of the third channel, thereby preventing water droplets from entering the equipment cabinet.

[0014] As a possible implementation of the first aspect, a first air filter and / or a second air filter are further included, wherein the first air filter is arranged in the second channel, and the second air filter is arranged in the third channel.

[0015] As described above, by providing a first air filter in the second channel, the air can be filtered before entering the equipment cabinet, thereby preventing contamination of the internal environment of the equipment cabinet. By providing a second air filter in the third channel, the external air can be filtered after entering the third channel, thereby preventing contamination of the internal environment of the air conditioner.

[0016] As a possible implementation of the first aspect, the second air filter is arranged at an angle.

[0017] As described above, by arranging the second air filter at an angle, the contact area between the second air filter and the air can be increased, thereby improving the filtering effect on the external air.

[0018] As a possible implementation of the first aspect, it also includes: a first water receiving tray, which is arranged in the second channel and below the evaporator; a second water receiving tray, which is arranged in the second channel and below the air valve, and the second water receiving tray is connected to the first water receiving tray pipeline.

[0019] As described above, by providing the first water receiving tray and the second water receiving tray, water on the evaporator and the air valve can be collected to avoid affecting the internal parts of the air conditioner.

[0020] As a possible implementation of the first aspect, it also includes a first fan and / or a second fan, the first fan is arranged in the second channel, driving the air in the second channel to be blown out from the first air outlet, and the second fan is arranged in the fourth channel, driving the air in the fourth channel to be blown out from the second air outlet.

[0021] As described above, by providing the first fan and the second fan, the air in the second channel and the fourth channel can be driven to flow, so that the air is blown out from the first air outlet and the second air outlet.

[0022] The second aspect of the present application provides an air conditioning control method, which controls the air conditioner described in any one of the first aspects of the present application to adjust the temperature inside the equipment cabinet, including: obtaining first information, the first information including a first temperature and a second temperature, the first temperature is the temperature inside the equipment cabinet, and the second temperature is the temperature of the outside air; when the first temperature in the first information is higher than the second temperature, and the difference between the first temperature and the second temperature is greater than a first threshold, issuing a first control instruction, the first control instruction is used to control the second interface of the air valve to be connected to the third interface.

[0023] As described above, when the difference between the air temperature outside the equipment cabinet and the air temperature inside the equipment cabinet is greater than the first threshold, the air outside the equipment cabinet is sufficient to regulate the temperature inside the equipment cabinet. By controlling the connection between the second interface and the third interface, air outside the equipment cabinet can enter the equipment cabinet through the third channel and the second channel, thereby regulating the temperature inside the equipment cabinet. In this way, low-temperature air from the external environment can be used to regulate the temperature inside the cabinet, thereby reducing energy consumption of the air conditioner.

[0024] As a possible implementation of the second aspect, the first information also includes a third temperature, which is the temperature of the heating area in the equipment cabinet; when the third temperature is greater than the second threshold and less than the third threshold, a second control instruction is issued, and the second control instruction is used to control the connection between the first interface and the second interface; the second threshold is the set temperature for turning on the fresh air function, and the third threshold is the temperature at which the heating area in the cabinet needs to be cooled.

[0025] As described above, when the temperature of the heating area in the equipment cabinet reaches the temperature at which the fresh air function is activated (i.e., the temperature reaches the temperature at which the second interface and the third interface are connected to allow outside air to enter the equipment cabinet), but has not yet reached the temperature at which the heating area in the cabinet needs to be cooled, the first interface and the second interface are controlled to be connected, so that the air inside the equipment cabinet and the air outside the equipment cabinet can be mixed in the second channel, thereby increasing the temperature of the air in the second channel and preventing the air discharged from the first air outlet from being too low in temperature, which would affect the normal operation of the components in the heating area. In this way, the natural cooling source can be utilized to the greatest extent, thereby increasing the temperature adjustment range of the air conditioner.

[0026] As a possible implementation of the second aspect, the second control instruction is further used to control the size of the position where the second interface connects with the first interface and the third interface respectively according to the first temperature and the second temperature.

[0027] From the above, by controlling the size of the position where the second interface is connected to the first interface and the third interface respectively according to the first temperature and the second temperature, the ratio of the air inside the equipment cabinet and the air outside the cabinet entering the second channel can be adjusted, so that the temperature of the first air outlet can be adjusted so that the air temperature of the first air outlet is suitable for adjusting the temperature inside the equipment cabinet.

[0028] These and other aspects of the present invention will become more readily apparent from the following description of the embodiment(s). BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The following further illustrates the various features of the present invention and the relationships between the various features with reference to the accompanying drawings. The accompanying drawings are all exemplary, and some features are not shown in actual proportion. In addition, some drawings may omit features that are conventional in the field to which this application relates and are not necessary for this application, or additionally show features that are not necessary for this application. The combination of the various features shown in the accompanying drawings is not intended to limit this application. In addition, throughout this specification, the same figure numbers refer to the same content. The specific description of the drawings is as follows:

[0030] Figure 1 This is a schematic diagram of the front orthographic projection structure of the air conditioner in this application;

[0031] Figure 2 This is a schematic diagram of the rear orthographic projection structure of the air conditioner in this application;

[0032] Figure 3 Schematic diagram of the internal structure of the air conditioner in this application;

[0033] Figure 4 This is a schematic diagram of the exploded structure of the air conditioner in this application;

[0034] Figure 5 This is a schematic diagram of the installation structure of the air conditioner in this application;

[0035] Figure 6 for Figure 3 A schematic diagram of the internal structure of the air conditioner when the middle blade is in the first position;

[0036] Figure 7 for Figure 3 A schematic diagram of the internal structure of the air conditioner when the middle blade is in the second position;

[0037] Figure 8 for Figure 3 Schematic diagram of the internal structure of the air conditioner when the middle blade is in the third position;

[0038] Figure 9 This is a flow chart of the air conditioning control method in this application.

[0039] Description of Reference Numerals

[0040] 10 air conditioner; 100 casing; 110 first air inlet; 120 first air outlet; 130 second air inlet; 140 second air outlet; 150 first channel; 160 second channel; 170 third channel; 180 fourth channel; 191 panel; 192 mounting side panel; 200 air valve; 210 first interface; 220 second interface; 230 third interface; 240 fourth interface; 250 blades; 300 evaporator; 400 condenser; 500 compressor; 600 first air filter; 700 second air filter; 800 first water tray; 900 second water tray; 1000 first fan; 1100 second fan; 20 equipment cabinet. DETAILED DESCRIPTION

[0041] The words "first, second, third, etc." or module A, module B, module C and other similar terms in the specification and claims are only used to distinguish similar objects and do not represent a specific ordering of the objects. It is understandable that the specific order or sequence can be interchanged where permitted so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0042] In the following description, the numbers representing the steps, such as S110, S120, etc., do not necessarily mean that the steps must be executed in this manner. If permitted, the order of the steps can be interchanged or they can be executed simultaneously.

[0043] The term "comprising" as used in the specification and claims should not be construed as limiting to what is listed thereafter; it does not exclude other elements or steps. Thus, it should be interpreted as specifying the presence of the features, integers, steps, or components mentioned, but not excluding the presence or addition of one or more other features, integers, steps, or components, or groups thereof. Thus, the expression "a device comprising means A and B" should not be limited to a device consisting solely of components A and B.

[0044] References in this specification to "one embodiment" or "an embodiment" mean that a particular feature, structure, or characteristic described in connection with that embodiment is included in at least one embodiment of the present invention. Therefore, the phrases "in one embodiment" or "in an embodiment" appearing throughout this specification do not necessarily refer to the same embodiment, but may do so. Furthermore, in one or more embodiments, the particular features, structures, or characteristics may be combined in any suitable manner, as would be apparent to one of ordinary skill in the art from this disclosure.

[0045] Below, with reference to the accompanying drawings, possible embodiments of the air conditioner 10 in the present application are exemplarily described.

[0046] Figure 1This is a schematic diagram of the front orthographic projection structure of the air conditioner 10 in this application; Figure 2 This is a schematic diagram of the rear orthographic projection structure of the air conditioner 10 in this application; Figure 3 Schematic diagram of the internal structure of the air conditioner 10 in this application; Figure 4 Schematic diagram of the exploded structure of the air conditioner 10 in this application; Figure 5 Schematic diagram of the installation structure of the air conditioner 10 in this application; Figure 6 for Figure 3 A schematic diagram of the internal structure of the air conditioner 10 when the middle blade 250 is in the first position; Figure 7 for Figure 3 A schematic diagram of the internal structure of the air conditioner 10 when the middle blade 250 is in the second position; Figure 8 for Figure 3 Schematic diagram of the internal structure of the air conditioner 10 when the middle blade 250 is in the third position.

[0047] like Figures 1-8 As shown, the air conditioner 10 in the present application includes a housing 100, a damper 200, an evaporator 300, and a condenser 400. The housing 100 is provided with a first air inlet 110, a first air outlet 120, a second air inlet 130, and a second air outlet 140. The first air inlet 110 and the first air outlet 120 are used to communicate with the space inside the equipment cabinet 20, while the second air inlet 130 and the second air outlet 140 are connected to the outside air. The damper 200 is disposed within the housing 100 and has a first interface 210, a second interface 220, a third interface 230, and a fourth interface 240. The first interface 210 communicates with the first air inlet 110 via a first channel 150, the second interface 220 communicates with the first air outlet 120 via a second channel 160, the third interface 230 communicates with the second air inlet 130 via a third channel 170, and the fourth interface 240 communicates with the second air outlet 140 via a fourth channel 180. The air valve 200 controls the connection and closing of the first and third interfaces 210 and 230 and the second and fourth interfaces 220 and 240. The evaporator 300 is disposed in the second channel 160, and the condenser 400 is disposed in the fourth channel 180. Coolant circulates in the evaporator 300 and the condenser 400.

[0048] As described above, the air valve 200 controls the connection and closing of the first and third interfaces 210 and 230 with the second and fourth interfaces 220 and 240 , thereby controlling the connection and isolation of the first and third channels 150 and 170 with the second and fourth channels 160 and 180 .

[0049] Specifically, the first interface 210 can be connected only to the second interface 220, and the third interface 230 can be connected only to the fourth interface 240, thereby connecting the first channel 150 to the second channel 160, and connecting the third channel 170 to the fourth channel 180. This isolates the first channel 150 and the second channel 160 from the third channel 170 and the fourth channel 180. In this way, the air circulation inside and outside the equipment cabinet 20 can be isolated.

[0050] Alternatively, the first interface 210 can be connected only to the fourth interface 240, and the third interface 230 can be connected only to the second interface 220, thereby connecting the first channel 150 to the fourth channel 180, and connecting the third channel 170 to the second channel 160, so that the first channel 150 and the fourth channel 180 are isolated from the third channel 170 and the second channel 160. In this way, fresh air from the outside can enter the equipment cabinet 20 through the third channel 170 and the second channel 160, and the air inside the equipment cabinet 20 can be discharged outside the equipment cabinet 20 through the first channel 150 and the fourth channel 180, so that the temperature inside the equipment cabinet 20 can be adjusted by using the low-temperature air from the outside environment.

[0051] The first interface 210 can also be connected to the second interface 220 and the fourth interface 240 at the same time, and the third interface 230 can be connected to the second interface 220 and the fourth interface 240 at the same time, so that the first channel 150 can be connected to the second channel 160 and the fourth channel 180 at the same time, and the third channel 170 can be connected to the second channel 160 and the fourth channel 180 at the same time. In this way, the air inside the equipment cabinet 20 can enter the second channel 160 through the first channel 150 and then mix with the air outside the equipment cabinet 20 after entering the second channel 160 through the third channel 170. This can maximize the use of natural cooling resources, thereby increasing the temperature adjustment range of the air conditioner 10 and reducing the energy consumption of the air conditioner 10.

[0052] In some embodiments, as Figure 3 As shown, the air conditioner 10 further includes a compressor 500 , which is used to drive the refrigerant to circulate between the evaporator 300 and the condenser 400 .

[0053] In some embodiments, as Figure 3As shown, the damper 200 further includes a blade 250 and a driver, which is in transmission connection with the blade 250 and drives the blade 250 to rotate to a first position, a second position, or a third position. When the blade 250 is in the first position, the first interface 210 is connected to the second interface 220, and the third interface 230 is connected to the fourth interface 240. When the blade 250 is in the second position, the first interface 210 is connected to the fourth interface 240, and the second interface 220 is connected to the third interface 230. When the blade 250 is in the third position, the first interface 210 is connected to the second interface 220 and the fourth interface 240, and the third interface 230 is connected to the second interface 220 and the fourth interface 240. Thus, the first interface 210, the third interface 230, the second interface 220, and the fourth interface 240 can be controlled by rotating the blade 250. This simplifies the control structure and reduces the cost of the air conditioner 10.

[0054] In some embodiments, as Figure 3 As shown, when viewed from a side perpendicular to the air conditioner 10, the damper 200 is generally square, with one diagonal of the damper 200 vertical and the other diagonal horizontal. A first interface 210, a second interface 220, a third interface 230, and a fourth interface 240 are arranged clockwise on four sides of the damper 200 parallel to the side of the air conditioner 10. The blade 250 is rectangular, with a centerline of the blade 250 extending perpendicular to the side of the air conditioner 10 located at the intersection of the two diagonals of the damper 200. A driver drives the blade 250 to rotate about the centerline, positioning the blade 250 in the two diagonal positions (the first position and the second position), thereby separating the damper 200 diagonally into two isolated portions, connecting the first interface 210 with the second interface 220 and the third interface 230 with the fourth interface 240. Alternatively, the first interface 210 is connected to the fourth interface 240, and the second interface 220 is connected to the third interface 230. Alternatively, the blade 250 may be positioned in the area corresponding to the second interface 220 and the fourth interface 240 (third position), or positioned in the area between the first position and the second position, so that the first interface 210 is simultaneously connected to the second interface 220 and the fourth interface 240, and the third interface 230 is simultaneously connected to the second interface 220 and the fourth interface 240.

[0055] In some embodiments, as Figure 3As shown, the damper 200 is at a different height than the second air inlet 130. Thus, by setting the damper 200 at a different height than the second air inlet 130, the third passage 170 can be tilted. This allows larger water droplets that enter the third passage 170 to flow out along the tilted passage. It also changes the direction of air flow, causing smaller water droplets in the air to impact the sidewalls of the third passage 170, thereby preventing water droplets from entering the equipment cabinet 20.

[0056] In some embodiments, as Figure 3 、 Figure 4 As shown, the air conditioner 10 further includes a first air filter 600 and / or a second air filter 700. The first air filter 600 is disposed within the second passage 160, and the second air filter 700 is disposed within the third passage 170. Thus, by disposing the first air filter 600 within the second passage 160, the air can be filtered before entering the equipment cabinet 20, thereby preventing contamination of the internal environment of the equipment cabinet 20. By disposing the second air filter 700 within the third passage 170, the external air can be filtered after entering the third passage 170, thereby preventing contamination of the internal environment of the air conditioner 10.

[0057] In some embodiments, as Figure 3 As shown, the second air filter 700 is tilted. Thus, by tilting the second air filter 700, the contact area between the second air filter 700 and the air can be increased. Thus, the filtering effect of the external air can be improved.

[0058] In some embodiments, as Figure 3 、 Figure 4 As shown, the air conditioner 10 further includes a first water receiving tray 800, which is disposed within the second passage 160 and below the evaporator 300; and a second water receiving tray 900, which is disposed within the second passage 160 and below the damper 200. The second water receiving tray 900 is connected to the first water receiving tray 800 through a pipe. Thus, by providing the first water receiving tray 800 and the second water receiving tray 900, water on the condenser 400 and the damper 200 can be collected to prevent it from affecting the internal components of the air conditioner 10.

[0059] In some embodiments, as Figure 3 、 Figure 4As shown, the air conditioner 10 further includes a first fan 1000 and / or a second fan 1100. The first fan 1000 is disposed in the second passage 160 and drives the air in the second passage 160 to be blown out through the first air outlet 120. The second fan 1100 is disposed in the fourth passage 180 and drives the air in the fourth passage 180 to be blown out through the second air outlet 140. Thus, by disposing the first fan 1000 and the second fan 1100, the air in the second passage 160 and the fourth passage 180 can be driven to flow, so that the air is blown out through the first air outlet 120 and the second air outlet 140.

[0060] In some embodiments, as Figure 4 As shown, the housing 100 includes a plurality of panels 191 and two parallel mounting side panels 192. The plurality of panels 191 are assembled to form a rectangular parallelepiped. The two mounting side panels 192 are disposed within the rectangular parallelepiped formed by the plurality of panels 191 and are vertically disposed on the left and right sides. The components within the air conditioner 10 are arranged in an up-and-down direction and mounted on the two mounting side panels 192. When installing the air conditioner 10, the components can be mounted on the mounting side panels 192 sequentially from the bottom. After installation is complete, the left and right panels 191 and the front and rear panels 191 can be installed. This facilitates assembly of the air conditioner 10 and improves assembly efficiency.

[0061] In some embodiments, as Figure 1-Figure 5 As shown, the first air inlet 110 and the first air outlet 120 are arranged on the surface of the housing 100 facing the equipment cabinet 20 , and the second air inlet 130 and the second air outlet 140 are arranged on the surface of the housing 100 facing away from the equipment cabinet 20 .

[0062] In some embodiments, as Figure 5 As shown, the air conditioner 10 is semi-embeddedly installed on the equipment cabinet 20 through a horizontal flange and a vertical flange.

[0063] In some embodiments, as Figure 6-Figure 8 As shown, the air conditioner 10 can realize multiple working modes through the control of the air valve 200, including: mechanical cooling mode, mixed air mode, 100% fresh air natural cooling mode, natural cooling + mechanical cooling mode, and emergency ventilation mode. The working principle is explained as follows:

[0064] When the outdoor temperature (second temperature) is higher than the temperature inside the equipment cabinet 20 (first temperature), and the control temperature (third temperature) of the cabinet air conditioner 10 is higher than the starting temperature setting value of the compressor 500 (third threshold, i.e., the temperature set to cool the heating area inside the cabinet), the air conditioner 10 operates in the mechanical cooling mode. Figure 6As shown, the damper 200 controls the blade 250 to rotate to the first position, connecting the first channel 150 with the second channel 160 and the third channel 170 with the fourth channel 180, thereby separating the internal and external circulations of the air conditioner 10. This also controls the operation of the first fan 1000, the second fan 1100, the compressor 500, the condenser, and the evaporator 300. Thus, on the internal circulation side, return air from the equipment cabinet 20 enters the air conditioner 10 through the first air inlet 110, then flows through the first channel 150 into the second channel 160, where it exchanges heat with the evaporator 300 in the second channel 160, lowering the air temperature, before being delivered into the equipment cabinet 20 through the first air outlet 120. On the external circulation side, fresh air from the outside enters the air conditioner 10 through the second air inlet 130, then flows through the third channel 170 into the fourth channel 180, where it exchanges heat with the condenser 400 in the fourth channel 180, lowering the condenser temperature, before being discharged to the outside through the second air outlet 140.

[0065] When the outdoor fresh air temperature (second temperature) is much lower than the temperature inside the equipment cabinet 20 (first temperature), and the temperature difference between the equipment cabinet 20 and the outdoor fresh air temperature is greater than the natural cooling temperature difference setting value (first threshold), the outdoor relative humidity is less than the humidity alarm value (fourth threshold). If the control temperature (third temperature) of the air conditioner 10 is greater than the fresh air opening temperature setting value (second threshold, i.e., the temperature set to open the fresh air function) and less than the lowest supply air temperature (third threshold, i.e., the temperature set to cool the heating area in the cabinet), the low-temperature fresh air and the high-temperature return air are mixed in proportion according to the control temperature of the air conditioner 10 (i.e., the target temperature of the air at the first air outlet 120), and the air conditioner 10 operates in mixed air mode. Figure 7 As shown, damper 200 controls blade 250 to rotate to the third position and adjusts the angle of blade 250 according to the control ratio. Compressor 500 is not operating, and first and second fans 1000 and 1100 are operating. Low-temperature external air is introduced into air conditioner 10 through second air inlet 130. Damper 200 mixes the fresh air and return air in proportion to the controlled temperature of air conditioner 10. The air then enters second duct 160 and is delivered into equipment cabinet 20 through first air outlet 120, cooling the electronic components within. Finally, second fan 1100 discharges a portion of the return air and fresh air to the outside through second air outlet 140, meeting the required supply air temperature while achieving energy-saving cooling.

[0066] When the outdoor temperature (second temperature) is lower than the temperature inside the equipment cabinet 20 (first temperature), and the temperature difference between the equipment cabinet 20 and the outdoor fresh air temperature is greater than the natural cooling temperature difference setting value, and the outdoor relative humidity is less than the humidity alarm value. If the control temperature of the air conditioner 10 is greater than the lowest supply air temperature and less than the compressor 500 starting temperature setting value (third threshold), the fresh air natural cooling can completely eliminate the heat load in the equipment cabinet 20, and the air conditioner 10 operates in 100% fresh air natural cooling mode. Figure 8 As shown, damper 200 controls blade 250 to rotate to the second position, and first and second fans 1000 and 1100 operate. Low-temperature outdoor air is introduced into air conditioner 10 through second air inlet 130, then delivered into equipment cabinet 20 via third duct 170, second duct 160, and first air outlet 120, dissipating heat and cooling the electronic components within. Finally, second fan 1100 drives the heat-exchanged, high-temperature fresh air into air conditioner 10 through first air inlet 110, where it is exhausted to the outside through first duct 150, fourth duct 180, and second air outlet 140, achieving a 100% natural cooling effect.

[0067] When the outdoor temperature is lower than the temperature inside the equipment cabinet 20, and the temperature difference between the equipment cabinet 20 and the outdoor fresh air temperature is greater than the natural cooling temperature difference setting value, and the outdoor relative humidity is less than the humidity alarm value. If the control temperature of the cabinet air conditioner 10 is greater than the compressor 500 start temperature setting value, the fresh air natural cooling cannot eliminate the heat load in the equipment cabinet 20. At this time, the compressor 500 runs for auxiliary cooling, and the air conditioner 10 runs in natural cooling + mechanical refrigeration mode. Figure 8 As shown, damper 200 controls blade 250 to rotate to the second position, operating compressor 500, condenser 400, and evaporator 300. Low-temperature outdoor air is introduced into air conditioner 10 through second air inlet 130, enters second channel 160 through third channel 170, exchanges heat with evaporator 300 in second channel 160, and is then delivered through first air outlet 120 into equipment cabinet 20, dissipating heat and cooling the electronic components within equipment cabinet 20. This maximizes the use of natural cooling and reduces energy consumption in air conditioner 10.

[0068] When any of the compressor 500, the first fan 1000, the second fan 1100 or the control board of the air conditioner 10 fails, causing the temperature inside the equipment cabinet 20 to exceed the set high temperature alarm value (fifth threshold), the air conditioner 10 operates in emergency ventilation mode. Figure 8As shown, damper 200 controls blade 250 to rotate to the second position, connecting the internal and external circulations of air conditioner 10. If first fan 1000 fails, second fan 1100 operates to expel hot air from equipment cabinet 20, allowing fresh air from the outside to be drawn into equipment cabinet 20 through second air inlet 130 due to the negative pressure within equipment cabinet 20. If second fan 1100 fails, first fan 1000 operates to deliver fresh air into equipment cabinet 20 through second air inlet 130, and the positive pressure generated within equipment cabinet 20 forces hot air to be expelled through second air outlet 140. This prevents electronic components within equipment cabinet 20 from shutting down due to overheating, thereby improving the reliability of the cabinet air conditioner 10.

[0069] The above description exemplifies the specific structure of the air conditioner 10. Next, the specific steps of the control method 30 of the air conditioner 10 will be exemplarily described with reference to the accompanying drawings.

[0070] Figure 9 Flowchart of the air conditioner 10 control method 30 in this application. Figure 9 As shown, the air conditioner 10 control method 30 in the present application controls the air conditioner 10 in any of the above embodiments of the present application to adjust the temperature in the equipment cabinet 20, including:

[0071] Step S901: Obtain first information.

[0072] In step S901 , the first information includes a first temperature and a second temperature, where the first temperature is the temperature inside the equipment cabinet 20 and the second temperature is the temperature of the outside air.

[0073] Step S904: Analyze the first information.

[0074] In step S904, it is determined whether the first temperature in the first information is higher than the second temperature, and whether the difference between the first temperature and the second temperature is greater than a first threshold. If the first temperature in the first information is higher than the second temperature, and the difference between the first temperature and the second temperature is greater than the first threshold, the process proceeds to step S907.

[0075] Step S907: issuing a first control instruction.

[0076] In step S907, the first control instruction is used to control the communication between the second interface 220 and the third interface 230 of the damper 200. Specifically, the blade 250 of the damper 200 is controlled to rotate to the second position, so that the first interface 210 is connected to the fourth interface 240, and the second interface 220 is connected to the third interface 230. As a result, external air can enter the equipment cabinet 20 through the third channel 170 and the second channel 160, and the air inside the equipment cabinet 20 can be discharged outside the equipment cabinet 20 through the first channel 150 and the fourth channel 180.

[0077] As described above, when the difference between the air temperature outside the equipment cabinet 20 and the air temperature inside the equipment cabinet 20 is greater than the first threshold, the air outside the equipment cabinet 20 is sufficient to regulate the temperature inside the equipment cabinet 20. By controlling the communication between the second interface 220 and the third interface 230, air outside the equipment cabinet 20 can enter the equipment cabinet 20 through the third channel 170 and the second channel 160, thereby regulating the temperature inside the equipment cabinet 20. In this way, the low-temperature air in the external environment can be used to regulate the temperature inside the cabinet, thereby reducing the energy consumption of the air conditioner 10.

[0078] In some embodiments, as Figure 6 As shown, the first information also includes a third temperature, which is the temperature of the heat-generating area within the equipment cabinet 20. Analyzing the first information also includes determining whether the third temperature is greater than a second threshold and less than a third threshold. The second threshold is the temperature set for activating the fresh air function, and the third threshold is the temperature at which the heat-generating area within the cabinet needs to be cooled. If the third temperature is greater than the second threshold and less than the third threshold, the process proceeds to step S908.

[0079] Step S908: issuing a second control instruction.

[0080] In step S908, the second control instruction is used to control the communication between the first interface 210 and the second interface 220. Specifically, the blade 250 of the damper 200 is controlled to rotate to the third position, so that the first interface 210 is connected to the fourth interface 240 and the second interface 220 at the same time, and the third interface 230 is connected to the second interface 220 and the fourth interface 240 at the same time. As a result, some of the air entering the third channel 170 from the outside can enter the equipment cabinet 20 through the second channel 160, while the remaining air can be discharged to the outside through the fourth channel 180. Some of the air entering the first channel 150 from the equipment cabinet 20 can enter the equipment cabinet 20 through the second channel 160, while the remaining air can be discharged to the outside through the fourth channel 180.

[0081] As described above, when the temperature of the heating area in the equipment cabinet 20 reaches the temperature at which the fresh air function is activated (i.e., the temperature at which the second interface 220 and the third interface 230 are connected to allow outside air to enter the equipment cabinet 20), but has not yet reached the temperature at which the heating area in the cabinet needs to be cooled, the first interface 210 and the second interface 220 are controlled to be connected, so that the air in the equipment cabinet 20 and the air outside the equipment cabinet 20 can be mixed in the second channel 160, thereby increasing the temperature of the air in the second channel 160 and preventing the air discharged from the first air outlet 120 from being too low in temperature, which would affect the normal operation of the components in the heating area. In this way, the natural cooling source can be utilized to the greatest extent, thereby increasing the temperature adjustment range of the air conditioner 10.

[0082] In some embodiments, the second control instruction is further used to control the size of the position at which the second interface 220 is connected to the first interface 210 and the third interface 230, respectively, based on the first temperature and the second temperature. Specifically, the second control instruction is used to control the angle of the blade 250 of the damper 200 when it is in the third position, thereby controlling the ratio of the blade 250 dividing the second interface 220 and the fourth interface 240, so that the second interface 220 of a corresponding ratio is connected to the first interface 210 and the third interface 230, respectively, and the fourth interface 240 of a corresponding ratio is connected to the first interface 210 and the third interface 230, respectively.

[0083] From the above, by controlling the size of the position where the second interface 220 is connected to the first interface 210 and the third interface 230 respectively according to the first temperature and the second temperature, the ratio of the air inside the equipment cabinet 20 and the air outside the cabinet entering the second channel 160 can be adjusted, so that the temperature of the first air outlet 120 can be adjusted so that the air temperature of the first air outlet 120 is suitable for adjusting the temperature inside the equipment cabinet 20.

[0084] In some embodiments, as Figure 6 As shown, when the third temperature is greater than or equal to the third threshold, step S909 is entered.

[0085] Step S909: issuing a third control instruction.

[0086] In step S909 , the third control instruction is used to control the operation of the evaporator 300 and the condenser 400 , that is, to control the operation of cooling-related components of the air conditioner 10 to mechanically cool the air passing through the second channel 160 .

[0087] As described above, mechanical cooling can be used to lower the temperature of the air in the second channel 160, thereby increasing the temperature of the air blown into the equipment cabinet 20 from the first air outlet, thereby improving the ability to regulate the air temperature within the equipment cabinet 20. In addition, by simultaneously cooling the air inside the equipment cabinet 20 through low-temperature fresh air from the outside and mechanical cooling, the operating burden of the mechanical cooling can be reduced, thereby reducing the energy consumption of the air conditioner 10.

[0088] In some embodiments, as Figure 6 As shown, the air conditioner 10 control method 30 further includes:

[0089] Step S902: Obtain second information.

[0090] In step S902, the second information includes the humidity of the external air.

[0091] Step S905: Analyze the second information.

[0092] In step S905, the second information is analyzed to determine whether the humidity of the outside air is less than a fourth threshold. If the humidity of the outside air is less than the fourth threshold, the process proceeds to step S905. If the humidity of the outside air is greater than or equal to the fourth threshold, the process proceeds to step S910.

[0093] Step S910: issuing a fourth control instruction.

[0094] In step S910, a fourth control instruction is issued, which is used to control the closing of the connection between the second port 220 and the third port 230 of the damper 200. Specifically, the blade 250 of the damper 200 is controlled to rotate to the first position, thereby connecting the first port 210 with the second port 220 and the third port 230 with the fourth port 240. This allows external air to be exhausted out of the equipment cabinet 20 through the third and fourth channels 170 and 180, while allowing air inside the equipment cabinet 20 to re-enter the equipment cabinet 20 through the first and second channels 150 and 160.

[0095] As described above, the air circulation inside and outside the equipment cabinet 20 can be isolated, preventing outside air from entering the equipment cabinet 20 and increasing the air humidity inside the equipment cabinet 20, thereby affecting the operation of the components inside the equipment cabinet 20.

[0096] In some embodiments, as Figure 6 As shown, the air conditioner 10 control method 30 further includes:

[0097] Step S903: Obtain third information.

[0098] In step S903 , the third information includes fault information of the air conditioner 10 .

[0099] Step S906: Analyze the third information.

[0100] In step S906, the third information is analyzed to determine whether the air conditioner 10 is faulty. Specifically, the first fan 1000, the second fan 1100, and the components responsible for mechanical cooling, such as the evaporator 300, the condenser 400, and the compressor 500, are determined to be faulty. If the first temperature exceeds the fifth threshold (the fifth threshold is the set high temperature alarm value) and the air conditioner 10 is faulty, the process proceeds to step S911.

[0101] Step S911: issuing a fifth control instruction.

[0102] In step S911, a fifth control instruction is issued. This instruction is used to control the blade 250 of the damper 200 to the second position, thereby connecting the first channel 150 with the fourth channel 180 and the third channel 170 with the second channel 160, thereby connecting the internal and external circulations. The fifth control instruction is also used to control the operation of the air conditioner 10 when no fault has occurred. The details are as follows.

[0103] When the first fan 1000 fails, the second fan 1100 and components responsible for mechanical cooling, such as the evaporator 300, condenser 400, and compressor 500, are controlled to operate. This allows the hot air within the equipment cabinet 20 to be discharged while simultaneously reducing the pressure within the equipment cabinet 20. This allows fresh air from the outside to be drawn into the equipment cabinet 20 through the second air inlet 130, third channel 170, second channel 160, and first air outlet 120 due to the negative pressure generated within the equipment cabinet 20. Simultaneously, the evaporator 300 can exchange heat with the air within the second channel 160, lowering the temperature of the fresh air after it passes through the second channel 160. This allows the fresh air to cool the equipment cabinet 20 after entering through the first air outlet 120.

[0104] When the second fan 1100 fails, the first fan 1000 and components responsible for mechanical cooling, such as the evaporator 300, condenser 400, and compressor 500, are controlled to operate. This allows air outside the equipment cabinet 20 to be drawn into the equipment cabinet 20 through the second air inlet 130, the third channel 170, the second channel 160, and the first air outlet 120. The evaporator 300 can perform heat exchange with the air in the second channel 160, lowering the temperature of the fresh air after passing through the second channel 160. This allows the fresh air to cool the equipment cabinet 20 after entering the equipment cabinet 20 through the first air outlet 120. Furthermore, the fresh air entering the equipment cabinet 20 increases the pressure inside the equipment cabinet 20, forcing the high-temperature air inside the equipment cabinet 20 to be discharged outside the equipment cabinet 20 through the first air inlet 110, the first channel 150, the fourth channel 180, and the second air outlet 140.

[0105] When the components responsible for mechanical refrigeration, such as the evaporator 300, the condenser 400, and the compressor 500, fail, the first fan 1000 and the second fan 1100 are controlled to operate, driving fresh air from the outside into the equipment cabinet 20 through the second air inlet 130, the third channel 170, the second channel 160, and the first air outlet 120, and driving the air in the equipment cabinet 20 to be discharged outside the equipment cabinet 20 through the first air inlet 110, the first channel 150, the fourth channel 180, and the second air outlet 140, thereby cooling the interior of the equipment cabinet 20.

[0106] In this way, it can be ensured that the electronic components in the equipment cabinet 20 do not shut down due to excessive temperature, thereby improving the reliability of the air conditioner 10.

[0107] In some embodiments, the fifth control instruction has a higher priority than the first to fourth control instructions. This allows the temperature inside the equipment cabinet 20 to be adjusted as quickly as possible when the air conditioner 10 malfunctions, preventing electronic components inside the equipment cabinet 20 from shutting down due to excessive temperatures, thereby improving the reliability of the air conditioner 10.

[0108] In some embodiments, the fourth control instruction has a higher priority than the first to third control instructions. This prevents outside air from entering the equipment cabinet when the humidity of the outside air is too high, thereby preventing the electronic components inside the equipment cabinet from being affected.

[0109] Note that the above are only preferred embodiments of the present application and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present application has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Without departing from the concept of the present invention, it may also include many other equivalent embodiments, all of which fall within the scope of protection of the present invention.

Claims

1. An air conditioner, characterized in that: include: A housing having a first air inlet, a first air outlet, a second air inlet, and a second air outlet, wherein the first air inlet and the first air outlet are connected to the space inside the equipment cabinet, and the second air inlet and the second air outlet are connected to the outside air; A damper, the damper being disposed within the housing and having a first interface, a second interface, a third interface, and a fourth interface, the first interface being connected to the first air inlet via a first channel, the second interface being connected to the first air outlet via a second channel, the third interface being connected to the second air inlet via a third channel, and the fourth interface being connected to the second air outlet via a fourth channel; the damper controlling the connection and closing of the first and third interfaces with the second and fourth interfaces; an evaporator, the evaporator being disposed in the second channel; A condenser is provided in the fourth channel, and a coolant circulates between the evaporator and the condenser.

2. The air conditioner according to claim 1, characterized in that The air valve also has a blade and a driver, which is in transmission connection with the blade to drive the blade to rotate to a first position, a second position or a third position; when the blade is in the first position, the first interface is connected to the second interface, and the third interface is connected to the fourth interface; when the blade is in the second position, the first interface is connected to the fourth interface, and the second interface is connected to the third interface; when the blade is in the third position, the first interface is connected to the second interface and the fourth interface, and the third interface is connected to the second interface and the fourth interface.

3. The air conditioner according to claim 1, characterized in that The air valve and the second air inlet are at different heights.

4. The air conditioner according to claim 1, characterized in that It also includes a first air filter and / or a second air filter, wherein the first air filter is arranged in the second channel, and the second air filter is arranged in the third channel.

5. The air conditioner according to claim 4, characterized in that The second air filter is arranged obliquely.

6. The air conditioner according to claim 1, characterized in that Also includes: a first water receiving tray, the first water receiving tray being disposed in the second channel and below the evaporator; The second water receiving tray is arranged in the second channel and is located below the air valve. The second water receiving tray is connected to the first water receiving tray through a pipeline.

7. The air conditioner according to claim 1, characterized in that It also includes a first fan and / or a second fan, the first fan is arranged in the second channel, driving the air in the second channel to be blown out from the first air outlet, and the second fan is arranged in the fourth channel, driving the air in the fourth channel to be blown out from the second air outlet.

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