Air cooler and air conditioning system

Abstract

The application relates to a surface cooler and an air conditioning system. The surface cooler comprises a shell with a supply air cavity, a supply air outlet and a heat exchange cavity which are sequentially communicated in the shell, and the heat exchange cavity is arranged through the shell; a heat exchange assembly is arranged in the heat exchange cavity and is used for heat exchange with external airflow; a hot air assembly is installed on the shell and is used for blowing hot air into the supply air cavity; a switch assembly is installed on the shell and is configured to open the supply air outlet by means of hot air wind power; a pressing assembly is installed on the shell and comprises a pressing plate which is located in the heat exchange cavity and is used for pressing the switch assembly to increase the pressure of the hot air driving the switch assembly to open the supply air outlet, and the pressing plate moves in a direction away from the switch assembly by means of hot air wind power. The surface cooler and the air conditioning system provided by the application can reduce a series of problems caused by frosting of the surface cooler.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, specifically to a surface cooler and an air conditioning system. Background Technology

[0002] In air conditioning systems, the surface cooler is a key heat exchange component, and its operating status directly affects the performance of the entire system. Currently, during actual operation of air conditioning system surface coolers, when the air conditioning system is under conditions of high humidity and low temperature, the surface of the heat exchange fins of the surface cooler is prone to frost formation.

[0003] Frost buildup can cause a series of problems. Frost increases thermal resistance, significantly reducing the efficiency of heat exchange between air and the heat exchange fins, severely impacting the cooling or heating performance of the air conditioning system. To maintain indoor temperature and humidity requirements, the air conditioning compressor needs to operate for longer periods and at higher loads to provide sufficient cooling or heating, directly leading to a substantial increase in energy consumption. Furthermore, under high load operation, the internal mechanical components of the compressor are subjected to greater pressure and friction, making them prone to failure and shortening the compressor's lifespan. In addition, frost accumulation on the heat exchange fin surface can melt into water droplets when the air conditioning system stops or its operating conditions change. If these droplets are not drained promptly, they can breed bacteria, mold, and other microorganisms. When the air conditioner restarts, these microorganisms are transported indoors with the air, affecting indoor air quality and posing a threat to human health, especially in densely populated places such as hospitals, schools, and offices, where declining air quality can trigger respiratory illnesses and other health problems.

[0004] In view of this, how to provide a surface cooler and air conditioning system that can reduce the series of problems caused by surface cooler frost has become an urgent problem to be solved. Utility Model Content

[0005] Therefore, it is necessary to provide a surface cooler and air conditioning system that can reduce a series of problems caused by surface cooler frost formation, in order to address the above issues.

[0006] A surface cooler, the surface cooler comprising:

[0007] The housing has an air supply chamber, an air outlet and a heat exchange chamber connected in sequence, and the heat exchange chamber is disposed through the housing;

[0008] A heat exchange assembly is disposed within the heat exchange cavity and is used to exchange heat with the external airflow;

[0009] A hot air assembly is mounted on the housing and is used to blow hot air into the air supply cavity;

[0010] A switch assembly is mounted on the housing and configured to open the air outlet by means of hot air force;

[0011] A pressure-retaining assembly is mounted on the housing and includes a pressure plate located inside the heat exchange chamber. The pressure plate is used to press against the switching assembly to increase the pressure that drives the hot air to open the air outlet. The pressure plate moves away from the switching assembly by means of the hot air.

[0012] In some embodiments, a guide hole is provided on the housing, and the guide hole communicates between the air supply cavity and the heat exchange cavity;

[0013] The pressing assembly further includes a guide post, a limiting plate, and a reset spring. The guide post is slidably inserted through the guide hole and connected between the limiting plate and the pressing plate. The reset spring is sleeved on the guide post and abuts against the limiting plate. The reset spring applies an elastic force to the pressing plate through the limiting plate, causing the pressing plate to press against the switch assembly.

[0014] In some embodiments, the surface cooler further includes a driving component and an adjusting component, both of which are disposed within the air supply cavity, and the end of the return spring away from the limiting plate abuts against the adjusting component. The adjusting component is controlled by the driving component and is used to adjust the compression of the return spring.

[0015] In some embodiments, the adjusting assembly includes a mounting base and an elastic plate, the elastic plate being mounted on the mounting base and abutting against the end of the return spring away from the limiting plate;

[0016] The driving assembly includes a driving element and an undulating rod. The undulating rod has multiple undulating portions with different maximum amplitude points along its extension direction. The driving element drives the undulating rod to translate and causes the undulating portions with different maximum amplitude points to abut against the end of the elastic sheet away from the return spring, so that the elastic sheet swings and adjusts the compression of the return spring.

[0017] In some embodiments, the housing is provided with multiple sets of air outlet groups, each set of air outlet groups includes two air outlets located on opposite sides of the undulating rod, the switch assembly corresponds to each air outlet, the pressure assembly and the adjustment assembly correspond to each air outlet group, and the pressure assembly has two pressure plates located on opposite sides of the undulating rod.

[0018] The driving element drives the undulating rod to translate, and causes the undulating parts with different maximum amplitude points to abut against the elastic plates of different adjustment components, so that the elastic plates of different adjustment components swing at different angles.

[0019] In some embodiments, the elastic sheet includes a connecting portion and an adjusting portion. The connecting portion is connected between the mounting base and the adjusting portion. The adjusting portion abuts against the return spring, and the adjusting portion has a guide notch for the guide post to pass through.

[0020] In some embodiments, the switch assembly includes a plurality of switch pieces arranged circumferentially around the air outlet, and the switch pieces are spring-loaded structures, and all the spring-loaded structures of the switch assembly cooperate to jointly close the air outlet.

[0021] In some embodiments, the pressure plate includes a base and a plurality of air guides disposed on the base. Each air guide corresponds to a switch piece. Each air guide has an air guide surface. All the air guide surfaces of the pressure plate converge at a center point or a center line. Each air guide surface has a first edge that is away from and separated from the center point or the center line. The air guide surface gradually descends in the direction from the center point or the center line toward the first edge.

[0022] In some embodiments, the hot air assembly includes a hot air blower and a blower pipe, the hot air blower being disposed on the housing and communicating with the air delivery chamber through the blower pipe.

[0023] An air conditioning system includes a surface cooler as described in any of the above embodiments.

[0024] Compared with the prior art, this application has the following beneficial effects:

[0025] In the aforementioned surface cooler and air conditioning system, when frost forms or is about to form on the heat exchange tubes and / or heat exchange fins, the hot air assembly operates, blowing hot air into the air supply cavity. When the hot air force reaches a certain level, the pressure plate moves away from the switching assembly with the help of the hot air force, allowing the switching assembly to open the air outlet. In this way, the hot air in the air supply cavity flows into the heat exchange cavity through the air outlet, providing heat to the heat exchange tubes and heat exchange fins. As the hot air assembly continuously supplies air into the heat exchange cavity, it can achieve the functions of defrosting and preventing frost formation on the heat exchange tubes and / or heat exchange fins. Furthermore, the hot air can dry the water droplets formed on the surface of the heat exchange tubes and / or heat exchange fins during the defrosting and anti-frost process, thereby further preventing frost formation. This design reduces or even eliminates a series of problems caused by frost, such as increased thermal resistance, low heat exchange efficiency, poor cooling and heating effects, high energy consumption, short service life, and health risks. It ensures that the air conditioning system has smooth air circulation, improved heat exchange efficiency, reduced energy consumption, and improved stability, reliability, and service life. The air conditioning system is healthy and hygienic, providing users with a comfortable and healthy indoor environment. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the surface cooler in one embodiment of this application;

[0027] Figure 2 for Figure 1 The diagram shows a partially cut-out section of the surface cooler to reveal a magnified view of the structure inside the air supply cavity.

[0028] Figure 3 for Figure 1 The diagram shows the structural arrangement of the switching assembly, pressure assembly, adjustment assembly, and drive assembly in the surface cooler.

[0029] Figure 4 for Figure 1 A top view of the switching assembly, pressure assembly, adjustment assembly, and drive assembly working together in the surface cooler shown;

[0030] Figure 5 for Figure 1 The top view of the hot air assembly in the surface cooler is shown.

[0031] Icon labels:

[0032] 100. Surface cooler;

[0033] 10. Housing; 20. Heat exchange assembly; 30. Hot air assembly; 40. Switch assembly; 50. Pressure assembly; 60. Adjustment assembly; 70. Drive assembly;

[0034] 11. Air supply cavity; 12. Air outlet; 13. Heat exchange cavity; 14. Mounting cavity;

[0035] 21. Refrigerant inlet pipe; 22. Refrigerant outlet pipe; 23. Heat exchanger pipe; 24. Heat exchanger fins;

[0036] 31. Hot air blower; 32. Air blower duct;

[0037] 41. Switch plate;

[0038] 51. Pressure plate; 511. Base; 512. Air guide section; 5121. Air guide surface; 5122. Centerline; 5123. First edge; 5124. Second edge; 52. Guide post; 53. Limiting plate; 54. Return spring; 55. Connecting rod;

[0039] 61. Mounting base; 62. Elastic sheet; 611. Connecting part; 612. Adjusting part; 6121. Guide notch;

[0040] 71. Drive element; 72. Irregular rod;

[0041] X: length direction; Y: width direction; Z: thickness direction. Detailed Implementation

[0042] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0043] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means multiple, such as two, three, etc., unless otherwise explicitly specified.

[0045] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0046] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0047] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0048] In air conditioning systems, the surface cooler is a key heat exchange component, and its operating status directly affects the performance of the entire system. Currently, during actual operation of air conditioning system surface coolers, when the air conditioning system is under conditions of high humidity and low temperature, the surface of the heat exchange fins of the surface cooler is prone to frost formation.

[0049] Frost buildup can cause a series of problems. Frost increases thermal resistance, significantly reducing the efficiency of heat exchange between air and the heat exchange fins, severely impacting the cooling or heating performance of the air conditioning system. To maintain indoor temperature and humidity requirements, the air conditioning compressor needs to operate for longer periods and at higher loads to provide sufficient cooling or heating, directly leading to a substantial increase in energy consumption. Furthermore, under high load operation, the internal mechanical components of the compressor are subjected to greater pressure and friction, making them prone to failure and shortening the compressor's lifespan. In addition, frost accumulation on the heat exchange fin surface can melt into water droplets when the air conditioning system stops or its operating conditions change. If these droplets are not drained promptly, they can breed bacteria, mold, and other microorganisms. When the air conditioner restarts, these microorganisms are transported indoors with the air, affecting indoor air quality and posing a threat to human health, especially in densely populated places such as hospitals, schools, and offices, where declining air quality can trigger respiratory illnesses and other health problems.

[0050] In view of this, how to provide a surface cooler and air conditioning system that can reduce the series of problems caused by surface cooler frost has become an urgent problem to be solved.

[0051] Please see Figures 1 to 5 To alleviate the aforementioned problems, the applicant, after in-depth research, designed a surface cooler 100, which includes a housing 10, a heat exchange assembly 20, a hot air assembly 30, a switching assembly 40, and a pressure assembly 50. The heat exchange assembly 20, hot air assembly 30, switching assembly 40, and pressure assembly 50 are all mounted on the housing 10. The housing 10 has a sequentially connected air supply chamber 11, an air outlet 12, and a heat exchange chamber 13, with the heat exchange chamber 13 penetrating the housing 10. The heat exchange assembly 20 is disposed within the heat exchange chamber 13 and is used for heat exchange with external airflow. The hot air assembly 30 blows hot air into the air supply chamber 11, and the switching assembly 40 is configured to open the air outlet 12 using the force of the hot air. The pressure assembly 50 includes a pressure plate 51, which is located in the heat exchange chamber 13 and is used to press against the switch assembly 40 to increase the pressure of the hot air driving the switch assembly 40 to open the air outlet 12. The pressure plate 51 moves away from the switch assembly 40 by means of the hot air force.

[0052] Specifically, the housing 10 mainly serves for installation and support, and can be made of sheet metal, plastic, or other materials. The housing 10 can be a cylindrical structure, a cuboid structure, or other structures. Preferably, the housing 10 is a cuboid structure to facilitate the arrangement of components on it.

[0053] The air supply chamber 11, air outlet 12, and heat exchange chamber 13 are arranged sequentially along the width direction Y of the shell 10, so as to... Figure 1 and Figure 2In the state where the intermediate surface cooler 100 is in, the width direction Y of the shell 10 is vertical. In this state, the air supply cavity 11, the air outlet 12, and the heat exchange cavity 13 are arranged sequentially from top to bottom. The air supply cavity 11 is a sealed cavity, and the heat exchange cavity 13 penetrates the shell 10 along the thickness direction Z of the shell 10.

[0054] The heat exchange assembly 20 includes a refrigerant inlet pipe 21, a refrigerant outlet pipe 22, a heat exchange tube 23, and heat exchange fins 24. There are multiple heat exchange tubes 23 and heat exchange fins 24, all of which are located in the heat exchange chamber 13. The heat exchange tubes 23 extend in a meandering manner, and all heat exchange fins 24 are disposed on the outer wall of the heat exchange tubes 23. The refrigerant inlet pipe 21 and the refrigerant outlet pipe 22 are installed on the housing 10. The inlet and outlet of the heat exchange tubes 23 are connected to an external refrigerant source through the refrigerant inlet pipe 21 and the refrigerant outlet pipe 22, respectively, to realize the path for refrigerant circulation.

[0055] When the switching assembly 40 closes the air outlet 12, the surface cooler 100 is in normal working condition, exchanging heat with the air. At this time, the pressure plate 51 of the pressure assembly 50 presses against the switching assembly 40 to increase the pressure that drives the hot air to open the air outlet 12. Therefore, the switching assembly 40 can only open the air outlet 12 when the hot air pressure in the air supply cavity 11 reaches a certain level. In this way, the air outlet 12 will not open easily, thus preventing the air that has exchanged heat with the surface cooler 100 during operation from entering the air supply cavity 11 and affecting the operation of the components in the air supply cavity 11. In actual operation, the refrigerant flows into the heat exchange tube 23 from the refrigerant inlet pipe 21. During the flow through the heat exchange tube 23, the cooling or heating capacity of the refrigerant is transferred to the air flowing through the surface cooler 100 through the heat exchange tube 23 and the heat exchange fins 24 to achieve heat exchange between the refrigerant and the air, thereby achieving cooling or heating of the air. Afterward, the refrigerant flows back to the external refrigerant source through the refrigerant outlet pipe 22, and so on. The air that has completed heat exchange is delivered into the room to cool or heat the room.

[0056] When frost forms or is about to form on the heat exchange tubes 23 and / or heat exchange fins 24, the hot air assembly 30 operates and blows hot air into the air supply chamber 11. When the hot air force reaches a certain level, the pressure plate 51 moves away from the switching assembly 40 with the help of the hot air force, allowing the switching assembly 40 to open the air supply port 12. In this way, the hot air in the air supply chamber 11 flows into the heat exchange chamber 13 through the air supply port 12, providing heat to the heat exchange tubes 23 and heat exchange fins 24. As the hot air assembly 30 continuously blows air into the heat exchange chamber 13, the functions of defrosting and preventing frost formation on the heat exchange tubes 23 and / or heat exchange fins 24 can be achieved. In addition, the hot air can also dry the water droplets formed on the surface of the heat exchange tubes 23 and / or heat exchange fins 24 during the defrosting and anti-frost process, thereby further preventing frost formation. This design reduces or even eliminates a series of problems caused by frost, such as increased thermal resistance, low heat exchange efficiency, poor cooling and heating effects, high energy consumption, short service life, and health risks. It ensures that the air conditioning system has smooth air circulation, improved heat exchange efficiency, reduced energy consumption, and improved stability, reliability, and service life. The air conditioning system is healthy and hygienic, providing users with a comfortable and healthy indoor environment.

[0057] Please see Figure 1 and Figure 5 In some embodiments, the hot air assembly 30 includes a hot air blower 31 and a blower pipe 32. The hot air blower 31 is mounted on the housing 10 and communicates with the air delivery chamber 11 through the blower pipe 32. The structure of delivering hot air into the air delivery chamber 11 using the hot air blower 31 and the hot air pipe is simple and easy to assemble, which helps reduce the manufacturing cost of the surface cooler 100. In addition, the hot air blower 31 can achieve efficient and large-volume delivery of hot air, with high air delivery efficiency and good air delivery effect, thereby greatly satisfying the functions of defrosting and anti-frost formation.

[0058] As an example, the housing 10 has an open mounting cavity 14, which is located along the length X of the housing 10 on one side of the air supply cavity 11 and the heat exchange cavity 13. The hot air blower 31 is located inside the mounting cavity 14, and the air blowing pipe 32 passes through the inner wall of the mounting cavity 14 and connects the hot air blower 31 and the air supply cavity 11. This design can reduce the space occupied by the hot air assembly 30 and improve the space utilization of the surface cooler 100.

[0059] Please see Figures 1 to 4 In some embodiments, the switch assembly 40 includes a plurality of switch pieces 41 arranged circumferentially around the air outlet 12, and the switch pieces 41 are spring-loaded structures, and all the spring-loaded structures of the switch assembly 40 cooperate to jointly close the air outlet 12.

[0060] Optionally, the air outlet 12 can be a circular opening, and there can be two, three, or even more switch pieces 41. All the switch pieces 41 of the switch assembly 40 are arranged at intervals along the circumference of the air outlet 12. Preferably, the air outlet 12 is an oblong or rectangular opening, and there are two switch pieces 41. This design can reduce the number of switch pieces 41 and facilitate installation.

[0061] As an example, the switch piece 41 can be a rubber sheet, a silicone sheet, or other thin sheet structure with a certain degree of elasticity.

[0062] The switch piece 41 has a spring-loaded structure. When the hot air blows air into the air supply chamber 11 by the hot air blower 31, and the hot air pressure reaches the pressure required to open the switch assembly 40, the hot air blows the switch piece 41 and the pressure plate 51. During this process, the pressure plate 51 moves away from the switch assembly 40, and the switch piece 41 deforms and swings, opening the air supply port 12 so that hot air can enter the heat exchange chamber 13 through the air supply port 12 for defrosting and anti-frost. After defrosting and anti-frost are completed, the hot air blower 31 stops working, the switch piece 41 automatically rebounds and closes the air supply port 12, and the pressure plate 51 presses against the switch assembly 40 again to increase the pressure required for the hot air to drive the switch assembly 40 to open the air supply port 12.

[0063] In this embodiment, by designing the switch piece 41 as a spring-loaded structure, the switch piece 41 can open the air outlet 12 under the action of hot air force, and the switch piece 41 can automatically spring back and close the air outlet 12. Under this design, the design of the drive structure for opening and closing the air outlet 12 can be reduced, which helps to simplify the structure of the surface cooler 100.

[0064] Please see Figures 2 to 4 Furthermore, in some embodiments, the pressure plate 51 includes a base 511 and a plurality of air guides 512 disposed on the base 511. The air guides 512 correspond one-to-one with the switch piece 41. The air guides 512 have air guide surfaces 5121. All the air guide surfaces 5121 of the pressure plate 51 converge at a center point or a center line 5122. The air guide surfaces 5121 have a first edge 5123 that is away from and separated from the center point or center line 5122. The air guide surfaces 5121 gradually descend in the direction from the center point or center line 5122 to the first edge 5123.

[0065] Specifically, the guide surface also has two second edges 5124, which are disposed at opposite ends of the first edge 5123 and are connected between the first edge 5123 and the center point, or between the first edge 5123 and the center line 5122.

[0066] Taking a circular air outlet 12 as an example, there are three or more air guiding surfaces 5121 that converge at a central point. This central point is located on the central axis of the air outlet 12 extending along its through direction. Taking a waist-shaped or rectangular air outlet 12 as an example, there are two air guiding surfaces 5121 that converge at a central line 5122. This central line 5122 extends along the extension direction of the air outlet 12 and is perpendicular to the central axis of the air outlet 12 extending along its through direction.

[0067] In this embodiment, all the air guides 512 on the pressure plate 51 cooperate and press against the switch assembly 40 to increase the pressure of the hot air driving the switch assembly 40 to open the air outlet 12. When the hot air blower 31 is started, under the action of the hot air force, the pressure plate 51 moves away from the switch assembly 40 to facilitate the switch assembly 40 to open the air outlet 12, and the hot air can flow into the heat exchange chamber 13 along all the air guide surfaces 5121 on the pressure plate 51. All the air guide surfaces 5121 on the pressure plate 51 can guide, divert, and reverse the airflow, so that the hot air can be blown to multiple areas in the heat exchange chamber 13 from multiple directions, thus the hot air can act more evenly on the surface of the heat exchange tube 23 and the heat exchange fins 24.

[0068] In some embodiments, the housing 10 has a guide hole that connects the air supply chamber 11 and the heat exchange chamber 13. The pressing assembly 50 also includes a guide post 52, a limiting plate 53 and a return spring 54. The guide post 52 is slidably inserted through the guide hole and connected between the limiting plate 53 and the pressing plate 51. The return spring 54 is sleeved on the guide post 52 and abuts against the limiting plate 53. The return spring 54 applies an elastic force to the pressing plate 51 through the limiting plate 53 to drive the pressing plate 51 to press against the switch assembly 40.

[0069] The limiting plate 53 is used to limit the return spring 54 to facilitate its installation. The guide post 52 is sleeved inside the limiting spring and guides the extension and contraction of the return spring 54. The return spring 54 is a compression spring.

[0070] by Figures 1 to 3 Taking the state of the intermediate surface cooler 100 as an example, the return spring 54 contracts, applying a vertically upward elastic force to the limiting plate 53. Under the action of the elastic force, the limiting plate 53, the guide post 52, and the pressure plate 51 all tend to move upward or all move upward, so that the pressure plate 51 can press against the switch assembly 40. Therefore, when the hot air turns on the switch assembly 40, the hot air pressure must at least overcome the preload of the return spring 54.

[0071] By setting guide post 52, limit plate 53 and reset spring 54, pressure plate 51 can press switch assembly 40 with the elastic force of reset spring 54 to increase the pressure of hot air drive switch assembly 40 to open air outlet 12, so that air outlet 12 will not open easily, thereby preventing air that exchanges heat with heat exchange tube 23 and heat exchange fins 24 during the operation of surface cooler 100 from entering air outlet cavity 11 and affecting the operation of devices in air outlet cavity 11.

[0072] Furthermore, in some embodiments, the surface cooler 100 further includes a drive assembly 70 and an adjustment assembly 60, both of which are disposed within the air supply cavity 11, and the end of the return spring 54 away from the limiting plate 53 abuts against the adjustment assembly 60. The adjustment assembly 60 is controlled by the drive assembly 70 and is used to adjust the compression of the return spring 54.

[0073] The greater the compression of the return spring 54, the greater the elastic force it exerts on the pressure plate 51 through the limiting plate 53 and guide post 52, resulting in a greater pressure exerted by the pressure plate 51 on the switch assembly 40. Consequently, the pressure required for the hot air drive switch assembly 40 to open the air outlet 12 is also greater. Conversely, the smaller the compression of the return spring 54, the smaller the elastic force it exerts on the pressure plate 51 through the limiting plate 53 and guide post 52, resulting in a smaller pressure exerted by the pressure plate 51 on the switch assembly 40. Consequently, the pressure required for the hot air drive switch assembly 40 to open the air outlet 12 is also smaller.

[0074] by Figures 1 to 3 Taking the state of the intermediate surface cooler 100 as an example, when the adjusting component 60 moves the return spring 54 upward under the action of the driving component 70, the compression of the return spring 54 increases, resulting in a greater pressure exerted by the pressure plate 51 on the switching component 40. This further increases the pressure required for the hot air to drive the switching component 40 to open the air outlet 12. When the adjusting component 60 pulls the return spring 54 downward under the action of the driving component 70, the compression of the return spring 54 decreases, resulting in a smaller pressure exerted by the pressure plate 51 on the switching component 40. This reduces the pressure required for the hot air to drive the switching component 40 to open the air outlet 12.

[0075] By designing the drive assembly 70 and the adjustment assembly 60, the drive assembly 70 and the adjustment assembly 60 cooperate to adjust the compression of the reset spring 54, so that the pressure applied by the pressure plate 51 to the switch assembly 40 changes, thereby adjusting the pressure of the hot air start switch assembly 40 to open the air outlet 12 as needed.

[0076] Further, in some embodiments, the adjusting assembly 60 includes a mounting base 61 and an elastic plate 62. The elastic plate 62 is mounted on the mounting base 61, and the elastic plate 62 abuts against the end of the return spring 54 away from the limiting plate 53. The driving assembly 70 includes a driving element 71 and an undulating rod 72. The undulating rod 72 has multiple undulating portions with different maximum amplitude points along its extension direction. The driving element 71 drives the undulating rod 72 to translate, and causes the undulating portions with different maximum amplitude points to abut against the end of the elastic plate 62 away from the return spring 54, so that the elastic plate 62 swings and adjusts the compression of the return spring 54.

[0077] As an example, the drive element 71 can be an electric telescopic rod, a telescopic cylinder, or other components, which can be set according to requirements.

[0078] The undulating rod 72 extends along the length direction X of the housing 10. The undulating part includes a convex part and a concave part. The concave part and the convex part can be alternately arranged along the extension direction of the undulating rod 72. Alternatively, the concave part can be concentrated in one section of the undulating rod 72, and the convex part can be concentrated in another section of the undulating rod 72. The extension direction of the concave part is closer to or farther away from the driving element 71 than the convex part.

[0079] If the undulating part is convex, then the maximum amplitude point of the undulating part refers to the height of the convex part from the point where it is farthest from the plane where the undulating rod 72 is set. If the undulating part is concave, then the maximum amplitude point of the undulating part refers to the depth of the concave part from the point where it is farthest from the plane where the undulating rod 72 is set. It can be understood that both the convex and concave parts are set on the same plane of the undulating rod 72, and this plane is defined as the reference plane. When the absolute value of the height of the point where the convex part is farthest from the reference plane is the same as the absolute value of the depth of the point where the concave part is farthest from the reference plane, the convex and concave parts are still considered to have different maximum amplitude points, and the maximum amplitude point of the convex part is greater than that of the concave part. This is because the maximum amplitude point of the convex part is above the reference plane and is a positive value, while the maximum amplitude point of the concave part is below the reference plane and is a negative value. In other words, an undulating part with different maximum amplitude points can refer to a convex part with different maximum amplitude points, a concave part with different maximum amplitude points, or a convex and concave part with different maximum amplitude points.

[0080] When the driving element 71 drives the undulating rod 72 to translate along the extension direction of the undulating rod 72, the undulating portions with different maximum amplitude points abut against the elastic plate 62, causing the elastic plate 62 to oscillate relative to the mounting base 61. Specifically, when the undulating portion with a larger maximum amplitude point abuts against the elastic plate 62, the elastic plate 62 swings upward and further compresses the return spring 54, increasing the compression of the return spring 54, and consequently increasing the pressure exerted by the pressure plate 51 on the switch assembly 40. When the undulating portion with a smaller maximum amplitude point abuts against the elastic plate 62, the elastic plate 62 swings downward, decreasing the compression of the return spring 54, and thus reducing the pressure exerted by the pressure plate 51 on the switch assembly 40.

[0081] Therefore, the driving element 71 drives the undulating rod 72 to move horizontally, which can adjust the preload of the reset spring 54 and adjust the pressure of the hot air drive switch assembly 40 to open the air outlet 12.

[0082] In some embodiments, the housing 10 has multiple sets of air outlets 12, each set of air outlets 12 including two air outlets 12 located on opposite sides of the undulating rod 72, the switch assembly 40 corresponds to one air outlet 12, the pressing assembly 50 and the adjusting assembly 60 correspond to one air outlet 12, the pressing assembly 50 has two pressing plates 51 located on both sides of the undulating rod 72, the driving element 71 drives the undulating rod 72 to translate, and drives the undulating parts with different maximum amplitude points to abut against the elastic plates 62 of different adjusting assemblies 60, so that the elastic plates 62 of different adjusting assemblies 60 swing at different angles.

[0083] Specifically, the air outlets 12 are arranged in multiple groups at intervals along the length X of the housing 10. Two air outlets 12 in each group are distributed along the thickness Z of the housing 10 on opposite sides of the undulating rod 72. A switch assembly 40 corresponds one-to-one with each air outlet 12 and is used to open or close the corresponding air outlet 12. A pressing assembly 50 and an adjusting assembly 60 both correspond one-to-one with the air outlet groups 12. The pressing assembly 50 has two pressing plates 51 distributed along the width Y of the housing 10 on both sides of the undulating rod 72. The two pressing plates 51 within the pressing assembly 50 correspond one-to-one with the two air outlets 12 in the corresponding air outlet group 12. The pressing plates 51 are used to press against the corresponding switch assembly 40. In this embodiment, the pressing assembly 50 also includes a connecting rod 55, which connects the guide post 52 and the two pressing plates 51. The adjusting assembly 60 corresponds one-to-one with the pressing assembly 50, and the drive assembly 70 is set as one group.

[0084] In actual operation, when the drive element 71 drives the undulating rod 72 to translate, the undulating parts with different maximum amplitude points abut against the elastic plates 62 of different adjustment components 60, causing the elastic plates 62 of different adjustment components 60 to oscillate relative to the mounting base 61 at different angles. This results in the pressure plates 51 in different pressure components 50 having different pressure against their corresponding switching components 40. In this case, the air outlets 12 in different groups of air outlets 12 require different opening pressures, thereby achieving hot air zoning and time-sharing to adapt to the anti-frost requirements of different areas of the surface cooler 100, further improving the energy efficiency and targeted operation of the system.

[0085] The following detailed implementation methods illustrate partitioning and time-sharing traffic redirection.

[0086] The area prone to frost is defined as the first area, the air outlet 12 blowing towards the first area is the first air outlet, the switch assembly 40 corresponding to the first air outlet is the first switch assembly, the pressure assembly 50 corresponding to the first air outlet is the first pressure assembly, and the adjustment assembly 60 corresponding to the first air outlet is the first adjustment assembly.

[0087] The area that is not prone to frost is defined as the second area, the air outlet 12 blowing towards the second area is the second air outlet, the switch assembly 40 corresponding to the second air outlet is the second switch assembly, the pressure assembly 50 corresponding to the second air outlet is the second pressure assembly, and the adjustment assembly 60 corresponding to the second air outlet is the second adjustment assembly.

[0088] It is worth mentioning that the first region and the second region are different regions arranged along the length direction X of the shell 10, and the first air outlet and the second air outlet are located in different groups of air outlets 12.

[0089] For the first area, the first air outlet needs to be opened as early as possible so that hot air can be quickly blown to the first area. Therefore, the pressure exerted by the first pressing component against the first switching component needs to be relatively small. Conversely, it can be deduced that the compression of the return spring 54 of the first pressing component should also be relatively small. Therefore, specifically, the undulating part with a small maximum amplitude point on the undulating rod 72 abuts against the elastic plate 62 of the first adjusting component.

[0090] Similarly, for the second area, the second air outlet needs to be opened slightly later so that the hot air can be blown into the second area with a relative delay, thereby saving energy. Therefore, the second pressure component needs to be set to have a larger pressure against the second switch component. Conversely, it can be deduced that the compression of the return spring 54 of the second pressure component should also be large. Therefore, specifically, the undulating part with a large maximum amplitude point on the undulating rod 72 abuts against the elastic plate 62 of the second adjustment component.

[0091] Under the above design, for areas with different degrees of frost in the heat exchange chamber 13, the opening pressure of the air outlet 12 blowing towards different areas can be set to be different, and the opening time will also be different. This allows for the adjustment of the opening sequence and time of air blowing in different areas of the heat exchange chamber 13, realizing the zoning and time-sharing of hot air to adapt to the anti-frost requirements of different areas in the surface cooler 100, and improving the energy efficiency, targeting and efficiency of the system operation.

[0092] Understandably, when some of the air outlets 12 are opened, hot air can be concentrated and blown towards the area facing the air outlets 12, thereby enabling concentrated defrosting of that area with high defrosting efficiency.

[0093] Please see Figure 2 and Figure 3 In some embodiments, the elastic sheet 62 includes a connecting portion 611 and an adjusting portion 612. The connecting portion 611 is connected between the mounting base 61 and the adjusting portion 612. The adjusting portion 612 abuts against the return spring 54, and a guide notch 6121 is provided on the adjusting portion 612 for the guide post 52 to pass through. The guide notch 6121 can guide the guide post 52 to slide, improve the stability of the guide post 52 sliding, and improve the tightness of the fit between the elastic sheet 62 and the guide post 52. This application also provides an air conditioning system, which includes the surface cooler 100 as described in any of the above embodiments. The air conditioning system in this application has the effects brought by any of the above embodiments, so it will not be described again here.

[0094] In the aforementioned surface cooler 100 and air conditioning system, when condensation and frost form on the heat exchange tubes 23 and / or heat exchange fins 24, or when frost is about to form, the hot air assembly 30 operates and blows hot air into the air supply chamber 11. When the hot air force reaches a certain level, the pressure plate 51 moves away from the switching assembly 40 with the help of the hot air force, allowing the switching assembly 40 to open the air outlet 12. Thus, the hot air in the air supply chamber 11 flows through the air outlet 12 into the heat exchange chamber 13, providing heat to the heat exchange tubes 23 and heat exchange fins 24. As the hot air assembly 30 continuously blows air into the heat exchange chamber 13, the defrosting and anti-frost functions of the heat exchange tubes 23 and / or heat exchange fins 24 can be achieved. Furthermore, the hot air can dry the water droplets formed on the surface of the heat exchange tubes 23 and / or heat exchange fins 24 during the defrosting and anti-frost process, thereby further preventing frost formation. This design reduces or even eliminates a series of problems caused by frost, such as increased thermal resistance, low heat exchange efficiency, poor cooling and heating effects, high energy consumption, short service life, and health risks. It ensures that the air conditioning system has smooth air circulation, improved heat exchange efficiency, reduced energy consumption, and improved stability, reliability, and service life. The air conditioning system is healthy and hygienic, providing users with a comfortable and healthy indoor environment.

[0095] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0096] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A surface cooler, characterized in that, The surface cooler includes: The housing (10) has an air supply chamber (11), an air outlet (12) and a heat exchange chamber (13) connected in sequence, and the heat exchange chamber (13) is disposed through the housing (10); A heat exchange assembly (20) is disposed in the heat exchange chamber (13) and is used to exchange heat with the external airflow; A hot air assembly (30) is mounted on the housing (10) and is used to blow hot air into the air supply chamber (11); A switch assembly (40) is mounted on the housing (10) and configured to open the air outlet (12) by means of hot air force; A pressure assembly (50) is mounted on the housing (10) and includes a pressure plate (51) located in the heat exchange chamber (13) and used to press against the switch assembly (40) to increase the pressure of the hot air driving the switch assembly (40) to open the air outlet (12), and the pressure plate (51) moves away from the switch assembly (40) by means of the hot air force.

2. The surface cooler according to claim 1, characterized in that, The housing (10) is provided with a guide hole, which is connected between the air supply cavity (11) and the heat exchange cavity (13); The pressing assembly (50) further includes a guide post (52), a limiting plate (53), and a return spring (54). The guide post (52) is slidably inserted through the guide hole and connected between the limiting plate (53) and the pressing plate (51). The return spring (54) is sleeved on the guide post (52) and abuts against the limiting plate (53). The return spring (54) applies an elastic force to the pressing plate (51) through the limiting plate (53) to drive the pressing plate (51) to press against the switch assembly (40).

3. The surface cooler according to claim 2, characterized in that, The surface cooler also includes a drive assembly (70) and an adjustment assembly (60). Both the drive assembly (70) and the adjustment assembly (60) are disposed in the air supply cavity (11), and the end of the return spring (54) away from the limiting plate (53) abuts against the adjustment assembly (60). The adjustment assembly (60) is controlled by the drive assembly (70) and is used to adjust the compression of the return spring (54).

4. The surface cooler according to claim 3, characterized in that, The adjustment assembly (60) includes a mounting base (61) and an elastic piece (62). The elastic piece (62) is mounted on the mounting base (61), and the elastic piece (62) abuts against the end of the return spring (54) away from the limiting plate (53). The drive assembly (70) includes a drive element (71) and an undulating rod (72). The undulating rod (72) has multiple undulating portions with different maximum amplitude points along its extension direction. The drive element (71) drives the undulating rod (72) to translate and causes the undulating portions with different maximum amplitude points to abut against the end of the elastic sheet (62) away from the return spring (54), so that the elastic sheet (62) swings and adjusts the compression of the return spring (54).

5. The surface cooler according to claim 4, characterized in that, The housing (10) has multiple sets of air outlets (12), each set of air outlets (12) includes two air outlets (12) located on opposite sides of the undulating rod (72), the switch assembly (40) corresponds to the air outlets (12) one by one, the pressure assembly (50) and the adjustment assembly (60) both correspond to the air outlets (12) one by one, the pressure assembly (50) has two pressure plates (51) located on both sides of the undulating rod (72); The driving element (71) drives the undulating rod (72) to translate, and causes the undulating part with different maximum amplitude points to abut against the elastic plate (62) of different adjustment components (60), so that the elastic plate (62) of different adjustment components (60) swings at different angles.

6. The surface cooler according to claim 4, characterized in that, The elastic sheet (62) includes a connecting part (611) and an adjusting part (612). The connecting part (611) is connected between the mounting base (61) and the adjusting part (612). The adjusting part (612) abuts against the return spring (54), and the adjusting part (612) has a guide notch (6121) for the guide post (52) to pass through.

7. The surface cooler according to claim 1, characterized in that, The switch assembly (40) includes a plurality of switch pieces (41), which are arranged circumferentially around the air outlet (12). The switch pieces (41) are spring-loaded structures, and all the spring-loaded structures of the switch assembly (40) cooperate to jointly close the air outlet (12).

8. The surface cooler according to claim 7, characterized in that, The pressure plate (51) includes a base (511) and a plurality of air guides (512) disposed on the base (511). The air guides (512) correspond one-to-one with the switch piece (41). The air guides (512) have air guide surfaces (5121). All the air guide surfaces (5121) of the pressure plate (51) converge at a center point or a center line (5122). The air guide surface (5121) has a first edge (5123) that is away from and separated from the center point or the center line (5122). The air guide surface (5121) gradually descends in the direction from the center point or the center line (5122) toward the first edge (5123).

9. The surface cooler according to claim 1, characterized in that, The hot air assembly (30) includes a hot air blower (31) and a blower pipe (32). The hot air blower (31) is mounted on the housing (10) and communicates with the air supply chamber (11) through the blower pipe (32).

10. An air conditioning system, characterized in that, Includes the surface cooler as described in any one of claims 1 to 9 above.

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