Precision air conditioner

Abstract

This utility model provides a precision air conditioner, including a cabinet, a fresh air module, a return air module, and a refrigeration module. The refrigeration module includes an evaporator and a blower component. The fresh air module includes a fresh air filter component and a fresh air valve. The return air module includes a return air valve and a control component. The blower component takes the air entering the cabinet through the fresh air valve and the return air valve and blows it out of the cabinet through the air outlet. The precision air conditioner provided by this utility model can achieve centralized control of fresh air introduction and precision air conditioning air supply functions in a single device by utilizing the fresh air module, improving the utilization efficiency of natural cold sources. Furthermore, by using the return air module to adjust the mixing ratio of return air and fresh air, the risk of condensation caused by directly introducing low-temperature fresh air into the computer room or base station is reduced. At the same time, it can effectively optimize the structural design of the precision air conditioner, achieving efficient integration of fresh air and return air functions in a limited space, realizing integrated control of fresh air treatment, air mixing, and refrigeration functions, and improving system reliability.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and in particular to precision air conditioning. Background Technology

[0002] In existing precision air conditioning systems, the precision air conditioning unit and the fresh air handling unit are set up independently, making unified control impossible. This limits the utilization efficiency of natural cold sources and fails to fully realize energy-saving potential. Furthermore, the independent fresh air handling unit lacks the ability to dynamically adjust the supply air temperature of the precision air conditioning unit. Directly introducing low-temperature fresh air may cause condensation risks, affecting equipment safety and reliability, resulting in insufficient supply air temperature regulation. At the same time, the independent arrangement of fresh air and return air modules occupies space in the equipment room or base station, resulting in a relatively loose structure that is difficult to meet the installation requirements of space-constrained environments. In addition, traditional plate or bag filters require frequent replacement, have complex maintenance procedures, and cannot maintain both air cleanliness and ease of maintenance in long-term operation. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing precision air conditioners, which, due to the separate installation of the precision air conditioner and the fresh air handling unit, cannot achieve unified control, resulting in limited utilization efficiency of natural cold sources and underutilization of energy-saving potential. Furthermore, the independent fresh air handling unit lacks the ability to dynamically adjust the supply air temperature of the precision air conditioner, and the direct introduction of low-temperature fresh air may cause condensation risks, affecting equipment safety and reliability, leading to insufficient supply air temperature regulation. Additionally, the independent arrangement of the fresh air module and return air module occupies space in the equipment room or base station, resulting in a relatively loose structure that is difficult to meet the installation requirements of space-constrained environments. Moreover, traditional plate or bag filters require frequent replacement, have complex maintenance procedures, and struggle to balance air cleanliness and ease of maintenance during long-term operation. Therefore, this invention provides a precision air conditioner solution.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a precision air conditioner, characterized in that it includes a cabinet, a fresh air module and a return air module installed on the cabinet, and a refrigeration module installed inside the cabinet; the refrigeration module includes an evaporator and a blower component, the fresh air module includes a fresh air filter component and a fresh air valve, the return air module includes a return air valve and a control component for controlling the return air valve, and the blower component blows the air entering the cabinet through the fresh air valve and the return air valve out of the cabinet through the air outlet. In fresh air mode, when the temperature in the computer room is suitable, the fresh air valve of the fresh air module adjusts its opening according to the indoor and outdoor temperature difference to introduce an appropriate amount of fresh air. The outdoor air is purified by the fresh air filter component before entering the cabinet, and the blower component blows the purified air out of the cabinet through the air outlet; when the temperature in the computer room is too low, the fresh air valve and the return air valve open simultaneously, and the control system dynamically adjusts the air mixing ratio to keep the supply air temperature within the set range, avoiding condensation on the equipment surface caused by direct low-temperature blowing. In mechanical cooling mode: when the temperature inside the server room is too high, the fresh air valve closes, the return air valve opens, the fresh air module stops operating, and the compressor starts cooling. The evaporator controls the supply air temperature within the set range, and the blower blows the cooled air out of the server rack through the air outlet. The precision air conditioner provided by this invention utilizes a fresh air module to achieve centralized control of fresh air introduction and precision air conditioning supply functions within a single device, improving the utilization efficiency of natural cold sources. Furthermore, by using the return air module to adjust the mixing ratio of return air and fresh air, precise supply air temperature control is achieved, reducing the risk of condensation caused by directly introducing low-temperature fresh air into the server room or base station. Simultaneously, by placing the fresh air module and return air module on the server rack, the structural design of the precision air conditioner can be effectively optimized, achieving efficient integration of fresh air and return air functions within a limited space. This enables integrated control of fresh air treatment, air mixing, and cooling functions, improving system reliability. In addition, the fresh air filter components of the fresh air module meet the requirements of quick filter replacement and convenient maintenance, while ensuring a stable supply of clean air.

[0005] Furthermore, the fresh air filtration component is a roller filter motor, and the fresh air module also includes a filter cotton bracket and a filter cotton mounting box. By using a roller filter motor, new filter surfaces can be gradually unfolded by rolling, significantly extending the lifespan of a single filter. Moreover, only the filter roll needs to be replaced, simplifying the maintenance process and reducing labor costs. In addition, the filter cotton mounting box and filter cotton bracket have brand-new filter rolls. When filter roll replacement is needed, the operator simply pulls out the discarded filter roll and installs the new filter roll onto the roller filter motor to complete the replacement operation.

[0006] Furthermore, the cabinet is equipped with a partition, the evaporator is located above the partition, and the fresh air module and return air module are both located on both sides of the cabinet and below the partition. In this embodiment, the air entering the cabinet through the fresh air module and return air module is concentrated below the partition, and then blown out of the cabinet through the air outlet after passing through the evaporator by the blower. Furthermore, by installing both the fresh air module and return air module on the cabinet, the precision air conditioner can be made compact, occupying little space, and is suitable for installation in data centers, server rooms, base stations, and other similar locations.

[0007] Furthermore, the air outlet is located above the partition, the blowing component is a forward centrifugal fan, and the blowing component is located at the bottom of the partition. In this embodiment, the air concentrated below the partition is blown towards the top of the cabinet by the forward centrifugal fan, and then blown out of the cabinet through the air outlet above the partition, thereby meeting the top air supply requirements of the precision air conditioner.

[0008] Furthermore, a partition is provided inside the cabinet, the evaporator is located below the partition, and both the fresh air module and the return air module are located on both sides of the cabinet and below the partition. In this embodiment, the air entering the cabinet through the return air module is blown out of the cabinet through the air outlet after passing through the evaporator using a blower. With the fresh air module installed higher than the bottom of the evaporator, the air entering the cabinet through the fresh air module is directly blown out of the cabinet through the air outlet using a blower.

[0009] Furthermore, the air outlet is located above the partition, and the blowing component is a backward centrifugal fan, situated at the top of the partition. In this embodiment, air entering the cabinet through the fresh air module is drawn upward by the backward centrifugal fan and blown out of the cabinet through the air outlet; air entering the cabinet through the return air module is drawn upward by the centrifugal fan, passes through the evaporator, and is blown out of the cabinet through the air outlet. This satisfies the top air supply requirements of the precision air conditioner while providing multiple options and layouts for the blowing components, meeting the needs of different usage scenarios.

[0010] Furthermore, the cabinet is equipped with a partition, the evaporator is positioned above the partition, the fresh air module is located on the side of the cabinet and above the partition, and the return air module is located at the top of the cabinet. In this embodiment, the air entering the cabinet through the return air module is blown out of the cabinet through the air outlet after passing through the evaporator using a blower. With the fresh air module installed higher than the bottom of the evaporator, the air entering the cabinet through the fresh air module is directly blown out of the cabinet through the air outlet using a blower, thus providing multiple layout options for the fresh air module, return air module, and cooling components to meet the needs of different usage scenarios.

[0011] Furthermore, the air outlet is located at the bottom of the cabinet, and the air blowing component is a forward centrifugal fan, which is located at the top of the partition. In this embodiment, since the forward centrifugal fan is installed below the return air module and the fresh air module, the air entering the cabinet through the fresh air module and the air entering the cabinet through the return air module are concentrated above the partition. Then, the forward centrifugal fan blows the air downwards, so that the air entering the cabinet through the return air module passes through the evaporator and is blown out of the cabinet through the air outlet located at the bottom of the cabinet; the air entering the cabinet through the return air module is directly blown out of the cabinet through the air outlet located at the bottom of the cabinet, thereby meeting the bottom air supply requirements of the precision air conditioner and providing multiple layout options for the air blowing components to meet the usage requirements in different application scenarios.

[0012] Furthermore, the fresh air module is located on the side of the cabinet, and the return air module is located on the top of the cabinet. In this embodiment, the air entering the cabinet through the return air module is blown out of the cabinet through the air outlet after passing through the evaporator using a blower. With the fresh air module installed higher than the bottom of the evaporator, the air entering the cabinet through the fresh air module is directly blown out of the cabinet using the blower, thus providing various layout options for the fresh air module, return air module, and cooling components to meet the needs of different usage scenarios.

[0013] Furthermore, the air outlet is located at the bottom of the cabinet, and the air blowing component is a backward centrifugal fan, also located at the bottom of the cabinet. In this embodiment, the air entering the cabinet through the fresh air module and the air entering the cabinet through the return air module are both concentrated inside the cabinet. Then, the backward centrifugal fan draws the air downwards, so that the air entering the cabinet through the return air module passes through the evaporator and is then drawn out of the cabinet by the backward centrifugal fan located at the bottom of the cabinet. This satisfies the bottom air supply requirement of the precision air conditioner and provides multiple layout options for the air blowing components to meet the needs of different usage scenarios.

[0014] The advantages of the precision air conditioner provided by this utility model are as follows: By utilizing the fresh air module, centralized control of fresh air introduction and precision air conditioning air supply functions can be achieved within a single device, improving the utilization efficiency of natural cold sources; furthermore, by using the return air module to adjust the mixing ratio of return air and fresh air, precise supply air temperature control can be achieved, reducing the risk of condensation caused by directly introducing low-temperature fresh air into the computer room or base station; simultaneously, by setting the fresh air module and return air module on the cabinet, the structural design of the precision air conditioner can be effectively optimized, achieving efficient integration of fresh air and return air functions within a limited space, realizing integrated control of fresh air treatment, air mixing, and cooling functions, and improving system reliability; in addition, the fresh air filter component of the fresh air module can meet the requirements of quick filter replacement and convenient maintenance, while ensuring a stable supply of clean air. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the precision air conditioner structure provided in the first embodiment of the present invention; Figure 2 This is a schematic diagram of the precision air conditioner structure provided in the second embodiment of the present invention; Figure 3 This is a schematic diagram of the precision air conditioner structure provided in the third embodiment of the present invention; Figure 4 This is a schematic diagram of the precision air conditioner structure provided in the fourth embodiment of the present invention; Figure 5 This is a schematic diagram of an embodiment of the fresh air valve and return air valve in the precision air conditioner provided by this utility model.

[0016] In the picture: Precision air conditioning Server rack, 11-Air outlet, 12-Shelf, 20-Fresh air module, 21-Fresh air valve Fresh air filter components, 23-Filter cotton bracket, 24-Filter cotton mounting box, 30-Return air module. 31-Return air valve, 41-Evaporator, 42-Blowering component. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] See Figure 1-3The present invention provides a precision air conditioner 100, which includes a cabinet 10, a fresh air module 20 and a return air module 30 disposed on the cabinet 10, and a refrigeration module disposed inside the cabinet 10. The refrigeration module includes an evaporator 41 and a blower component 42. The fresh air module 20 includes a fresh air filter component 22 and a fresh air valve 21. The return air module 30 includes a return air valve 31 and a control component for controlling the return air valve 31. The blower component 42 blows the air that enters the cabinet 10 through the fresh air valve 21 and the return air valve 31 out of the cabinet 10 through the air outlet 11. In fresh air mode, when the temperature inside the computer room is suitable, the fresh air valve 21 of the fresh air module 20 adjusts its opening according to the indoor and outdoor temperature difference to introduce an appropriate amount of fresh air. Outdoor air is purified by the fresh air filter component 22 before entering the server rack 10, and the purified air is blown out of the server rack 10 through the air outlet 11 using the blower component 42. When the temperature inside the computer room is too low, the fresh air valve 21 and the return air valve 31 open simultaneously, and the control system dynamically adjusts the air mixing ratio to maintain the supply air temperature within the set range, preventing condensation on the equipment surface caused by direct low-temperature airflow. In mechanical cooling mode: when the temperature inside the computer room is too high, the fresh air valve 21 closes, the return air valve 31 opens, and the fresh air module 20 stops operating. At this time, the compressor starts cooling, controlling the supply air temperature within the set range through the evaporator 41, and the cooled air after heat exchange is blown out of the server rack 10 through the air outlet 11 using the blower component 42. The precision air conditioner 100 provided by this utility model can achieve centralized control of fresh air introduction and air supply functions within a single device by utilizing the fresh air module 20, thereby improving the utilization efficiency of natural cold sources. Furthermore, by utilizing the return air module 30 to adjust the mixing ratio of return air and fresh air, precise air supply temperature control can be achieved, reducing the risk of condensation caused by directly introducing low-temperature fresh air into the computer room or base station. At the same time, by setting the fresh air module 20 and the return air module 30 on the cabinet 10, the structural design of the precision air conditioner 100 can be effectively optimized, achieving efficient integration of fresh air and return air functions within a limited space, realizing integrated control of fresh air treatment, air mixing, and cooling functions, and improving system reliability. In addition, by utilizing the fresh air filter component 22 of the fresh air module 20, the requirements for quick filter replacement and convenient maintenance can be met, while ensuring a stable supply of clean air.

[0019] like Figure 1 As shown, the fresh air filtration component 22 is a roller filter motor, and the fresh air module 20 also includes a filter cotton bracket 23 and a filter cotton mounting box 24. By using a roller filter motor, new filter surfaces can be gradually unfolded by rolling, significantly extending the lifespan of a single filter. Furthermore, only the filter roll needs to be replaced, simplifying the maintenance process and reducing labor costs. In addition, the filter cotton mounting box 24 and the filter cotton bracket 23 have brand-new filter rolls. When it is necessary to replace the filter roll, the operator simply pulls out the discarded filter roll and installs the new filter roll onto the roller filter motor to complete the filter roll replacement operation.

[0020] like Figure 1 As shown, a partition 12 is provided inside the cabinet 10, with the evaporator 41 positioned above the partition 12. The fresh air module 20 and return air module 30 are both located on both sides of the cabinet 10 and below the partition 12. In this embodiment, the air entering the cabinet 10 through the fresh air module 20 and return air module 30 is concentrated below the partition 12, and then blown out of the cabinet 10 through the air outlet 11 after passing through the evaporator 41 by the blower component 42. Furthermore, by installing both the fresh air module 20 and return air module 30 on the cabinet 10, the precision air conditioner 100 can be made compact, occupying little space, and is suitable for installation in data centers, server rooms, base stations, and other similar locations.

[0021] like Figure 1 As shown, the air outlet 11 is located above the partition 12, and the air blowing component 42 is a forward centrifugal fan located at the bottom of the partition 12. In this embodiment, the air concentrated below the partition 12 is blown towards the top of the cabinet 10 by the forward centrifugal fan, and then blown out of the cabinet 10 through the air outlet 11 above the partition 12, thereby meeting the top air supply requirements of the precision air conditioner 100.

[0022] like Figure 2 As shown, in another possible embodiment, a partition 12 is provided inside the cabinet 10, the evaporator 41 is located below the partition 12, and the fresh air module 20 and the return air module 30 are both located on both sides of the cabinet 10 and below the partition 12. In one possible embodiment, the installation position of the fresh air module 20 is higher than the bottom of the evaporator 41. In this embodiment, the air entering the cabinet 10 through the return air module 30 is blown out of the cabinet 10 through the air outlet 11 after passing through the evaporator 41 by the blower component 42. With the installation position of the fresh air module 20 higher than the bottom of the evaporator 41, the air entering the cabinet 10 through the fresh air module 20 is directly blown out of the cabinet 10 through the air outlet 11 by the blower component 42, thereby providing multiple layout schemes for the fresh air module 20, the return air module 30, and the cooling components to meet the usage needs in different application scenarios.

[0023] like Figure 2As shown, the air outlet 11 is located above the partition 12, and the air blowing component 42 is a backward centrifugal fan, which is located at the top of the partition 12. In this embodiment, the air entering the cabinet 10 through the fresh air module 20 is drawn upward by the backward centrifugal fan and blown out of the cabinet 10 through the air outlet 11; the air entering the cabinet 10 through the return air module 30 is drawn upward by the centrifugal fan and blown out of the cabinet 10 through the air outlet 11 after passing through the evaporator 41. This satisfies the top air supply requirements of the precision air conditioner 100 while providing a variety of options and layouts for the air blowing component 42 to meet the needs of different usage scenarios.

[0024] like Figure 3 As shown, in another possible embodiment, a partition 12 is provided inside the cabinet 10, the evaporator 41 is located above the partition 12, and the fresh air module 20 is located on the side of the cabinet 10 and above the partition 12. The return air module 30 is located on the top of the cabinet 10. In one possible embodiment, the installation position of the fresh air module 20 is higher than the bottom of the evaporator 41. In this embodiment, the air entering the cabinet 10 through the return air module 30 is blown out of the cabinet 10 through the air outlet 11 after passing through the evaporator 41 by the blower component 42. With the installation position of the fresh air module 20 higher than the bottom of the evaporator 41, the air entering the cabinet 10 through the fresh air module 20 is directly blown out of the cabinet 10 through the air outlet 11 by the blower component 42, thereby providing multiple layout schemes for the fresh air module 20, return air module 30, and cooling components to meet the usage needs in different application scenarios.

[0025] like Figure 3 As shown, the air outlet 11 is located at the bottom of the cabinet 10, and the air blowing component 42 is a forward centrifugal fan, which is located at the top of the partition 12. In one possible implementation, the forward centrifugal fan is installed below the return air module 30 and the fresh air module 20. In this embodiment, since the forward centrifugal fan is installed below the return air module 30 and the fresh air module 20, the air entering the cabinet 10 through the fresh air module 20 and the air entering the cabinet 10 through the return air module 30 are both concentrated above the partition 12. Then, the forward centrifugal fan blows air downwards, so that the air entering the cabinet 10 through the return air module 30 passes through the evaporator 41 and is blown out of the cabinet 10 through the air outlet 11 located at the bottom of the cabinet 10; the air entering the cabinet 10 through the fresh air module 20 is directly blown out of the cabinet 10 through the air outlet 11 located at the bottom of the cabinet 10, thereby meeting the bottom air supply requirements of the precision air conditioner 100 and providing multiple layout options for the blowing components 42 to meet the usage requirements in different application scenarios.

[0026] like Figure 4As shown, in another possible embodiment, the fresh air module 20 is disposed on the side of the cabinet 10, and the return air module 30 is disposed on the top of the cabinet 10. In one possible implementation, the installation position of the fresh air module 20 is higher than the bottom of the evaporator 41. In this embodiment, the air entering the cabinet 10 through the return air module 30 is blown out of the cabinet 10 through the air outlet 11 after passing through the evaporator 41 by the blower component 42. With the installation position of the fresh air module 20 higher than the bottom of the evaporator 41, the air entering the cabinet 10 through the fresh air module 20 is directly blown out of the cabinet 10 by the blower component 42, thereby providing multiple layout schemes for the fresh air module 20, return air module 30, and cooling components to meet the usage needs in different application scenarios.

[0027] like Figure 4 As shown, the air outlet 11 is located at the bottom of the cabinet 10, and the air blowing component 42 is a backward centrifugal fan, which is also located at the bottom of the cabinet 10. In this embodiment, the air entering the cabinet 10 through the fresh air module 20 and the air entering the cabinet 10 through the return air module 30 are both concentrated inside the cabinet 10. Then, the backward centrifugal fan draws the air downward, so that the air entering the cabinet 10 through the return air module 30 passes through the evaporator 41 and is then drawn out of the cabinet 10 by the backward centrifugal fan located at the bottom of the cabinet 10. When the installation position of the fresh air module 20 is higher than the bottom of the evaporator 41, the air entering the cabinet 10 through the fresh air module 20 is directly drawn out of the cabinet 10 by the backward centrifugal fan located at the bottom of the cabinet 10, thereby meeting the bottom air supply requirement of the precision air conditioner 100 and providing multiple layout options for the air blowing component 42 to meet the usage requirements in different application scenarios.

[0028] In addition, such as Figure 5 As shown, the fresh air valve 21 and return air valve 31 provided by this utility model can be multi-leaf regulating valves, and the opening and closing operations of the fresh air valve 21 and return air valve 31 are realized by adjusting the leaves. In other possible embodiments, orifice plate regulating valves can also be used. By moving the orifice plate regulating valve, the air holes on adjacent orifice plate regulating valves are misaligned, thereby realizing the opening and closing operations of the fresh air valve 21 and return air valve 31. The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A precision air conditioner comprising a cabinet (10), a fresh air module (20), a return air module (30) and a refrigeration module, characterized in that, The fresh air module (20) and the return air module (30) are mounted on the cabinet (10), and the cooling module is mounted inside the cabinet (10). The refrigeration module includes an evaporator (41) and a blower (42). The fresh air module (20) includes a fresh air filter (22) and a fresh air valve (21). The return air module (30) includes a return air valve (31) and a control component for controlling the return air valve (31). The blower (42) blows the air that enters the cabinet (10) through the fresh air valve (21) and the return air valve (31) out of the cabinet (10) through the air outlet (11).

2. The precision air conditioner of claim 1, wherein, The fresh air filter component (22) is a roller filter motor, and the fresh air module (20) also includes a filter cotton bracket (23) and a filter cotton mounting box (24).

3. The precision air conditioner as described in claim 2, characterized in that, The cabinet (10) is provided with a partition (12), the evaporator (41) is located above the partition (12), and the fresh air module (20) and the return air module (30) are both located on both sides of the cabinet (10) and below the partition (12).

4. The precision air conditioner of claim 3, wherein, The air outlet (11) is located above the partition (12), the air blowing component (42) is a forward centrifugal fan, and the air blowing component (42) is located at the bottom of the partition (12).

5. The precision air conditioner of claim 2, wherein, The cabinet (10) is provided with a partition (12), the evaporator (41) is located below the partition (12), and the fresh air module (20) and the return air module (30) are both located on both sides of the cabinet (10) and below the partition (12).

6. The precision air conditioner of claim 5, wherein, The air outlet (11) is located above the partition (12), the air blowing component (42) is a backward centrifugal fan, and the air blowing component (42) is located on top of the partition (12).

7. The precision air conditioner of claim 2, wherein, The cabinet (10) is provided with a partition (12), the evaporator (41) is located above the partition (12), the fresh air module (20) is located on the side of the cabinet (10) and above the partition (12), and the return air module (30) is located on the top of the cabinet (10).

8. The precision air conditioner of claim 7, wherein, The air outlet (11) is located at the bottom of the cabinet (10), the air blowing component (42) is a forward centrifugal fan, and the air blowing component (42) is located at the top of the partition (12).

9. The precision air conditioner of claim 2, wherein, The fresh air module (20) is located on the side of the cabinet (10), and the return air module (30) is located on the top of the cabinet (10).

10. The precision air conditioner of claim 1, wherein, The blowing component (42) is a backward centrifugal fan, and the blowing component (42) is located at the bottom of the cabinet (10).

Images