Single-cooling cabinet air conditioner

Abstract

The utility model provides a single-cooling cabinet air conditioner which comprises an evaporator, a condenser, a first water receiving device and a first drainage device. And the condenser is arranged below the evaporator and is configured to cool the surface of the condenser by utilizing condensed water generated on the surface of the evaporator. The first water receiving device is arranged below the condenser and used for collecting condensate water flowing down from the condenser. The first water receiving device is connected with a first drainage device, and the first drainage device is configured to drain condensate water in the first water receiving device. According to the utility model, two indexes of heat exchange effect and energy conservation can be well considered, the COP of the cabinet air conditioner is improved, and the cabinet air conditioner is energy-saving and environment-friendly.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to a single-cooling cabinet air conditioner. Background Art

[0002] Existing cabinet air conditioners are typically integrated, single-cooling air conditioners. The upper portion of the cabinet air conditioner returns air, while the lower portion blows out cold air, delivering cooling capacity to the electrical control cabinet using the cooling unit. This regulates the temperature inside the electrical control cabinet and improves the operational reliability of the electrical components. The cabinet air conditioner includes a housing, within which are located a compressor, a condenser, a throttling device, an evaporator, and a water collection pan. The condenser is located above the evaporator, and the water collection pan is located below the evaporator to collect the condensed water produced on the evaporator. To improve the heat exchange capacity of the cabinet air conditioner, a water pump and a water spray device are also provided within the housing of the cabinet air conditioner. When the cabinet air conditioner is operating, the condensed water in the water collection pan is usually transported to the water spray device via a water pump to cool the surface of the condenser, thereby enhancing the heat exchange effect of the condenser. However, the water pump not only increases the production cost of the cabinet air conditioner, but also generates additional energy consumption during operation, increasing the cost of use. Utility Model Content

[0003] In view of the above problems, the present invention is proposed to provide a single-cooling cabinet air conditioner that overcomes the above problems or at least partially solves the above problems. It can solve the technical problem that when the existing single-cooling cabinet air conditioner enhances heat exchange, additional energy consumption needs to be introduced, which increases the production cost and use cost of the cabinet air conditioner, so that the single-cooling cabinet air conditioner can better take into account both heat exchange effect and energy saving.

[0004] Specifically, the utility model provides a cooling-only cabinet air conditioner, comprising:

[0005] evaporator;

[0006] a condenser, the condenser being disposed below the evaporator and configured to utilize condensed water generated on a surface of the evaporator to cool a surface of the condenser;

[0007] a first water receiving device, the first water receiving device being arranged below the condenser;

[0008] A first drainage device is configured to drain condensed water in the first water receiving device.

[0009] Optionally, the cooling-only cabinet air conditioner further includes:

[0010] a second water receiving device, the second water receiving device being arranged between the bottom of the evaporator and the top of the condenser;

[0011] The second drainage device is configured to transport the condensed water in the second water receiving device to the surface of the condenser.

[0012] Optionally, the cooling-only cabinet air conditioner further includes:

[0013] a first water level detection device, configured to detect the water level in the first water receiving device; and

[0014] The cooling-only cabinet air conditioner is configured to control the opening or closing of the first drainage device according to the water level in the first water receiving device.

[0015] Optionally, the water outlet of the second drainage device is located above the condenser.

[0016] Optionally, the condenser is arranged directly below the evaporator; or

[0017] The condenser is arranged obliquely below the evaporator.

[0018] Optionally, the cooling-only cabinet air conditioner further includes:

[0019] A compressor is arranged on a side of the condenser close to the evaporator.

[0020] Optionally, the condenser comprises:

[0021] a first refrigerant inlet, the first refrigerant inlet being disposed at an upper portion of the condenser and communicating with an exhaust port of the compressor;

[0022] A first refrigerant outlet is provided at a lower portion of the condenser, and the first refrigerant outlet is configured to transport the refrigerant in the condenser to the evaporator.

[0023] Optionally, the evaporator comprises:

[0024] a second refrigerant inlet, the second refrigerant inlet being disposed at a lower portion of the evaporator;

[0025] The second refrigerant outlet is provided at the upper portion of the evaporator.

[0026] Optionally, the first drainage device includes:

[0027] a first drain pipe, wherein the inlet of the first drain pipe is connected to the first water receiving device;

[0028] A drain valve is configured to control the opening and closing of the first drain pipe.

[0029] Optionally, the cooling-only cabinet air conditioner further includes:

[0030] A second water level detection device, configured to detect the water level in the second water receiving device; and

[0031] The cooling-only cabinet air conditioner is configured to control the opening or closing of the second drainage device according to the water level in the second water receiving device.

[0032] In the single-cooling cabinet air conditioner of the present invention, the evaporator is arranged above the condenser. On the one hand, during the cooling operation of the cabinet air conditioner, the condensed water generated on the surface of the evaporator will automatically flow downward under the action of gravity, thereby flowing to the surface of the condenser and wetting its surface without the need for external power equipment. The condensed water will exchange heat with the refrigerant inside the condenser, which is beneficial to lowering the temperature of the refrigerant inside the condenser and improving the heat exchange capacity of the condenser; this in turn helps to lower the temperature of the refrigerant entering the evaporator and improve the heat exchange capacity of the evaporator. Therefore, compared with the existing technology, the present invention can well balance the two indicators of heat exchange effect and energy saving, improve the COP of the cabinet air conditioner, and save energy and be environmentally friendly.

[0033] On the other hand, since the hot air in the electrical control cabinet or the machine room will automatically move upward, the air conditioner of the present invention discharges cold air from the upper part, which is beneficial to the temperature uniformity in the cabinet or the machine room.

[0034] In addition, by providing the first water receiving device and the first drainage device, condensed water can be prevented from flowing to other places in the air-conditioning housing or even overflowing to the outside of the air-conditioning, thereby affecting the user experience.

[0035] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0037] Figure 1 It is a schematic structural diagram of a cooling-only cabinet air conditioner according to an embodiment of the present utility model.

[0038] List of reference numerals:

[0039] 100. Single cooling cabinet air conditioner;

[0040] 110. Housing;

[0041] 120. Compressor;

[0042] 130. Condenser;

[0043] 140. Throttling device;

[0044] 150. Evaporator;

[0045] 160. First water receiving device;

[0046] 170. First drainage device; 171. First drainage pipe; 172. Drain valve;

[0047] 180. Second water receiving device;

[0048] 190. Second drain pipe. DETAILED DESCRIPTION

[0049] Refer to the following Figure 1 To describe the single-cooling cabinet air conditioner of an embodiment of the present invention. In the description of this embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0050] Unless otherwise expressly specified or limited, terms such as "disposed," "installed," "connected," "connected," "fixed," and "coupled" should be interpreted broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two elements or interaction between two elements, unless otherwise expressly limited. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0051] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact via another feature between them. That is, in the description of this embodiment, the first feature being "above," "above," and "above" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below," "below," or "below" the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0052] In the description of the present embodiment, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any appropriate manner in any one or more embodiments or examples.

[0053] Figure 1 This is a schematic structural diagram of a cooling-only cabinet air conditioner 100 according to an embodiment of the present invention. Figure 1 As shown, an embodiment of the present invention provides a cooling-only cabinet air conditioner 100 , which includes an evaporator 150 , a condenser 130 , a first water receiving device 160 and a first drainage device 170 .

[0054] Condenser 130 is disposed below evaporator 150 and is configured to utilize condensed water generated on the surface of evaporator 150 to cool the surface of condenser 130. A first water receiving device 160 is disposed below condenser 130 and is used to collect condensed water flowing down from condenser 130. First water receiving device 160 is connected to first drain device 170, which is configured to drain the condensed water from first water receiving device 160.

[0055] Figure 1 The middle arrow represents the flow direction of the refrigerant. The cooling working principle of the cabinet air conditioner mainly depends on the phase change process of the refrigerant. Specifically, this process includes four main steps: compression, condensation, throttling and evaporation. Compression: The refrigerant is sucked into the compressor 120 in gaseous form and compressed into a high-temperature and high-pressure gas. Condensation: The high-temperature and high-pressure gaseous refrigerant is sent to the condenser 130, where it releases heat and cools into a medium-temperature and high-pressure liquid refrigerant through heat exchange with the external air. Throttling: The liquid refrigerant is reduced in pressure by the throttling device 140 and becomes a low-temperature and low-pressure gas-liquid mixture. Evaporation: The low-temperature and low-pressure gas-liquid mixture refrigerant enters the evaporator 150, where it absorbs heat from the external air and vaporizes into a gaseous state, thereby cooling the air. This process will continue to cycle, causing the temperature inside the cabinet or the machine room to drop.

[0056] In this embodiment, since the evaporator 150 is positioned above the condenser 130, during the cooling operation of the cabinet air conditioner, condensed water generated on the surface of the evaporator 150 automatically flows downward under the action of gravity. This water, without the need for external power equipment, flows to the surface of the condenser 130 and wets it. The condensed water then exchanges heat with the refrigerant inside the condenser 130, thereby lowering the temperature of the refrigerant inside the condenser 130 and improving the heat exchange capacity of the condenser 130. This, in turn, helps lower the temperature of the refrigerant entering the evaporator 150, improving the heat exchange capacity of the evaporator 150 and further reducing the temperature inside the cabinet. Therefore, this embodiment effectively balances heat exchange efficiency and energy conservation, improving the COP of the cabinet air conditioner and contributing to energy conservation and environmental protection. COP, short for Cooling Performance Rate, is an important indicator of air conditioner cooling efficiency. It refers to the ratio of cooling capacity to input power during cooling. Simply put, it is the ratio of cooling capacity provided by an air conditioner in one hour to its power consumption.

[0057] On the other hand, the cabinet air conditioner blows out cold air from the top and returns air from the bottom. Since hot air in the electrical control cabinet or computer room will automatically move upward, the cold air discharged from the top of the air conditioner is conducive to temperature uniformity in the cabinet or computer room.

[0058] Furthermore, the first water receiving device 160 can be provided to collect condensed water, and the first drainage device 170 can be provided to drain the condensed water in the first water receiving device 160 to a suitable location, such as a sewer. This prevents the condensed water from flowing to other locations within the air conditioner housing 110 or even overflowing outside the air conditioner, thereby affecting the user experience.

[0059] In some optional embodiments of the present invention, the cooling-only cabinet air conditioner 100 further includes a shell 110 , and the evaporator 150 , the condenser 130 , the first water receiving device 160 and the first drainage device 170 are all disposed in the shell 110 .

[0060] In some optional embodiments of the present invention, a through hole is provided on the shell 110 , which connects the inside and outside of the shell 110 and is used to allow the drainage end of the first drainage device 170 to extend to the outside of the shell 110 .

[0061] In some optional embodiments of the present invention, the first drainage device 170 includes a first drainage pipe 171. The inlet of the first drainage pipe 171 is connected to the first water receiving device 160, and the outlet of the first drainage pipe 171 extends to the outside of the housing 110 through a hole in the housing 110, so as to drain the water in the first water receiving device 160 to the outside of the housing 110.

[0062] In some optional embodiments of the present invention, the first drainage device 170 includes a first drainage pipe 171 and a drainage valve 172. The drainage valve 172 is configured to control the opening and closing of the first drainage pipe 171.

[0063] Specifically, when the water level in the first water receiving device 160 is low, the drain valve 172 is controlled to close, disconnecting the first drain pipe 171. Condensed water flowing from the condenser 130 is collected in the first water receiving device 160. This condensed water evaporates, lowering the temperature near the condenser 130, thereby improving the heat exchange effect of the condenser 130 and, in turn, improving the cooling effect of the air conditioner. When the water level in the first water receiving device 160 exceeds a preset level, the drain valve 172 is controlled to open, connecting the first water receiving pipe and draining the condensed water to the outside of the air conditioner.

[0064] In some optional embodiments of the present invention, the cooling-only cabinet air conditioner 100 further includes a first water level detection device for detecting the water level in the first water receiving device 160. The cooling-only cabinet air conditioner 100 is configured to control the opening or closing of the first drain device 170 based on the water level in the first water receiving device 160. Specifically, the cooling-only cabinet air conditioner 100 is configured to control the opening of the drain valve 172 based on the water level in the first water receiving device 160 to disconnect or connect the first drain pipe 171, thereby maximizing the heat exchange efficiency of the condenser 130.

[0065] like Figure 1 As shown, in some optional embodiments of the present invention, the water outlet of the first water receiving device 160 is arranged at a lower position thereof, which is more conducive to automatically draining the water in the first water receiving device 160.

[0066] In some optional embodiments of the present invention, the first water receiving device 160 is a first water receiving tray. In some alternative embodiments, the first water receiving device 160 can also be a first water receiving box with an upper opening. In other words, the structure and shape of the first water receiving device 160 can be designed based on the internal space of the housing 110.

[0067] In some optional embodiments of the present invention, the condenser is arranged directly below the evaporator. Condensed water produced on the condenser can flow directly to the surface of the condenser.

[0068] like Figure 1 As shown, in some optional embodiments of the present invention, the cooling-only cabinet air conditioner 100 further includes a second water receiving device 180 and a second drainage device. The second water receiving device 180 is disposed between the bottom of the evaporator 150 and the top of the condenser 130, and the second drainage device is configured to transport the condensed water in the second water receiving device 180 to the surface of the condenser 130.

[0069] In this embodiment, the condenser 130 may be disposed obliquely below the evaporator 150 , or directly below the evaporator 150 .

[0070] In addition, in this embodiment, the second water receiving device 180 may be a second water receiving tray, or a second water receiving box with an upper opening.

[0071] When the condenser 130 is arranged obliquely below the evaporator 150, the second drainage device may include a second drainage pipe 190, the inlet of the second drainage pipe 190 is connected to the water outlet of the second water receiving device 180, and the outlet of the second drainage pipe 190 extends to or near the condenser 130.

[0072] When the condenser is disposed directly below the evaporator, the second drainage device may include a plurality of drainage holes evenly distributed at the bottom of the second drainage device. The plurality of drainage holes facilitates evenly spraying the condensed water onto the surface of the condenser.

[0073] like Figure 1 As shown, in some optional embodiments of the present invention, the water outlet of the second drainage device is located above the condenser 130. Through the above arrangement, the flow area of the condensed water on the condenser 130 can be increased, thereby helping to enhance the heat exchange effect of the condenser 130.

[0074] In some optional embodiments of the present invention, the cooling-only cabinet air conditioner 100 further includes a second water level detection device for detecting the water level in the second water receiving device 180 .

[0075] The cooling-only cabinet air conditioner 100 is configured to control the opening or closing of the second drainage device according to the water level in the second water receiving device 180 .

[0076] Specifically, the cooling-only cabinet air conditioner 100 is configured such that when the water level in the second water receiving device 180 is below the activation water level, the second drainage device is closed; when the water level in the second water receiving device 180 is above the activation water level, the second drainage device is opened to drain the condensed water in the second water receiving pan onto the condenser 130. This arrangement prevents insufficient condensed water from being directly blown away by the fan corresponding to the condenser 130 during downward flow, thereby failing to achieve a sufficient strengthening effect.

[0077] In addition, the cooling-only cabinet air conditioner 100 is further configured to issue a fault prompt of the second water receiving device 180 and / or the second drainage device when the water level in the second water receiving device 180 is greater than the warning water level.

[0078] In some optional embodiments of the present invention, the cooling-only cabinet air conditioner 100 further includes a compressor 120, which is disposed on a side of the condenser 130 close to the evaporator 150. In other words, the compressor 120 is located directly below the evaporator 150, and the condenser 130 can be located on the left, right, front, or rear side of the compressor 120.

[0079] like Figure 1 As shown, in some optional embodiments of the present invention, the condenser 130 includes a first refrigerant inlet and a first refrigerant outlet. The first refrigerant inlet is arranged at the upper portion of the condenser 130 and is connected to the exhaust port of the compressor 120. The first refrigerant outlet is arranged at the lower portion of the condenser 130 and is configured to transport the refrigerant in the condenser 130 to the evaporator 150. In this embodiment, the refrigerant temperature in the upper portion of the condenser 130 is higher than the condensation temperature in the lower portion. The condensed water flows to the upper portion of the condenser 130, which can quickly reduce the surface temperature of the condenser 130 and make the temperature difference between the inside and outside of the upper portion of the condenser 130 poor, which is conducive to improving the heat exchange intensity of the condenser 130. In some alternative embodiments, the first refrigerant inlet and the first refrigerant outlet can also be arranged at other positions of the condenser.

[0080] like Figure 1 As shown, in some optional embodiments of the present invention, the evaporator 150 includes a second refrigerant inlet and a second refrigerant outlet. The second refrigerant inlet is disposed at the lower portion of the evaporator 150, and the second refrigerant outlet is disposed at the upper portion of the evaporator 150. In some alternative embodiments, the second refrigerant inlet is disposed at the upper portion of the evaporator, and the second refrigerant outlet is disposed at the lower portion of the evaporator; alternatively, the second refrigerant inlet and the second refrigerant outlet may be disposed at other locations on the evaporator.

[0081] In some optional embodiments of the present invention, the cooling-only cabinet air conditioner 100 further includes a throttling device 140 , which is disposed between the condenser 130 and the evaporator 150 .

[0082] The throttling device 140 may be a solenoid valve, an electronic expansion valve, or a capillary tube. Compared with the solenoid valve, the electronic expansion valve has the advantages of a wide flow control range, sensitive response, rapid action, fine adjustment, and stable action.

[0083] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications consistent with the principles of the present invention can be directly determined or deduced from the contents disclosed herein without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims

1. A cooling-only cabinet air conditioner, characterized in that: include: evaporator; a condenser, the condenser being disposed below the evaporator and configured to utilize condensed water generated on a surface of the evaporator to cool a surface of the condenser; a first water receiving device, the first water receiving device being arranged below the condenser; A first drainage device is configured to drain condensed water in the first water receiving device.

2. The cooling-only cabinet air conditioner according to claim 1, characterized in that: Also includes: a second water receiving device, the second water receiving device being arranged between the bottom of the evaporator and the top of the condenser; The second drainage device is configured to transport the condensed water in the second water receiving device to the surface of the condenser.

3. The cooling-only cabinet air conditioner according to claim 1, characterized in that: Also includes: a first water level detection device, configured to detect the water level in the first water receiving device; and The cooling-only cabinet air conditioner is configured to control the opening or closing of the first drainage device according to the water level in the first water receiving device.

4. The cooling-only cabinet air conditioner according to claim 2, characterized in that: The water outlet of the second drainage device is located above the condenser.

5. The cooling-only cabinet air conditioner according to claim 2, characterized in that: The condenser is arranged directly below the evaporator; or The condenser is arranged obliquely below the evaporator.

6. The cooling-only cabinet air conditioner according to claim 1, characterized in that: Also includes: A compressor is arranged on a side of the condenser close to the evaporator.

7. The cooling-only cabinet air conditioner according to claim 6, characterized in that: The condenser comprises: a first refrigerant inlet, the first refrigerant inlet being disposed at an upper portion of the condenser and communicating with an exhaust port of the compressor; A first refrigerant outlet is provided at a lower portion of the condenser, and the first refrigerant outlet is configured to transport the refrigerant in the condenser to the evaporator.

8. The cooling-only cabinet air conditioner according to claim 1, characterized in that: The evaporator comprises: a second refrigerant inlet, the second refrigerant inlet being disposed at a lower portion of the evaporator; The second refrigerant outlet is provided at the upper portion of the evaporator.

9. The cooling-only cabinet air conditioner according to claim 1, characterized in that: The first drainage device comprises: a first drain pipe, wherein the inlet of the first drain pipe is connected to the first water receiving device; A drain valve is configured to control the opening and closing of the first drain pipe.

10. The cooling-only cabinet air conditioner according to claim 2, characterized in that: Also includes: A second water level detection device, configured to detect the water level in the second water receiving device; and The cooling-only cabinet air conditioner is configured to control the opening or closing of the second drainage device according to the water level in the second water receiving device.

Images