Coil heat exchanger and heating and ventilation equipment

Abstract

The utility model discloses a coil heat exchanger and heating and ventilation equipment, and relates to the technical field of air conditioners. The coil heat exchanger comprises a mounting assembly and a coil assembly, the mounting assembly comprises two mounting pieces arranged at intervals, and each mounting piece is provided with two first ends and a middle portion located between the two ends; the coil pipe assembly comprises a plurality of first heat exchange sub-pipes arranged at intervals, the two opposite ends of each first heat exchange sub-pipe are connected with the two mounting pieces one by one, and the arrangement density of the first heat exchange sub-pipes connected to the middle part is larger than that of the first heat exchange sub-pipes connected to the first end part. The heat exchanger can be matched with the phenomenon that the air speed on the two sides in the first direction is lower than the air speed in the middle when the fan discharges air, so that the area where the first heat exchange sub-pipes are distributed with small density conducts heat exchange on low-air-speed airflow, and the area where the heat exchange sub-pipes are distributed with large density conducts heat exchange on high-air-speed airflow. The heat exchange efficiency of a high-wind-speed area in the heat exchanger can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to a coil heat exchanger and HVAC equipment. Background Art

[0002] This section merely provides background information related to the present disclosure and is not necessarily prior art.

[0003] The main structure of the coil heat exchanger includes a refrigerant circulation pipe and a heat sink connected to the circulation pipe. Its main function is to adjust the air temperature through the condensation and evaporation process of the refrigerant, thereby realizing heat exchange in the air conditioning circulation system.

[0004] However, the heat exchange efficiency of each area of ​​the coil heat exchanger on the windward side facing the fan is the same or basically the same, and it is impossible to perform corresponding heat exchange in the high wind speed area and the low wind speed area of ​​the fan, which affects the heat exchange efficiency of the heat exchanger. Utility Model Content

[0005] The purpose of the utility model is to at least solve the problem that the coil heat exchanger cannot perform corresponding heat exchange in the high wind speed area and the low wind speed area of ​​the fan. This purpose is achieved through the following technical solutions:

[0006] In a first aspect, the utility model proposes a coil heat exchanger having a windward side and a leeward side, the coil heat exchanger comprising a mounting assembly and a coil assembly, the mounting assembly comprising two mounting members arranged at intervals along a first direction, the first direction intersecting with the arrangement direction of the windward side and the leeward side, each of the mounting members having two opposite first ends along a second direction and a middle portion located between the two first ends, the second direction intersecting with the first direction and the arrangement direction of the windward side and the leeward side respectively; the coil assembly comprising a plurality of first sub-heat exchange tubes, each of the first sub-heat exchange tubes being connected to two mounting members at opposite ends along the first direction, wherein the arrangement density of the first sub-heat exchange tubes connected to the middle portion is greater than the arrangement density of the first sub-heat exchange tubes connected to the first end portion, and the arrangement density is the number of the first sub-heat exchange tubes on the mounting member per unit length along the second direction.

[0007] According to the coil heat exchanger provided by the utility model, the layout density of the first sub-heat exchange tubes connected to the middle part of the mounting member is designed to be greater than the layout density of the first sub-heat exchange tubes connected to the two first end parts of the mounting member, which can match the phenomenon that the wind speed on both sides along the first direction is lower than the middle wind speed when the fan is exhausting air, so that the area with a small layout density of the first sub-heat exchange tubes exchanges heat with the low wind speed airflow, and the area with a large heat exchange layout density exchanges heat with the high wind speed airflow, which can improve the heat exchange efficiency of the high wind speed area in the heat exchanger, and at the same time can reduce the number of the first sub-heat exchange tubes in the low wind speed area in the heat exchanger, thereby reducing costs.

[0008] In addition, the coil heat exchanger provided by the utility model may also have the following additional technical features:

[0009] In some embodiments of the present invention, the plurality of first sub-heat exchange tubes are arranged in a plurality of rows along the arrangement direction of the windward side and the leeward side, and each row has a plurality of first sub-heat exchange tubes arranged at intervals along the second direction.

[0010] In some embodiments of the present invention, along the arrangement direction of the windward side and the leeward side, the multiple rows of the first sub-heat exchange tubes include a first row located in the middle of the mounting member and two second rows located on both sides of the first row, and the number of the first sub-heat exchange tubes in the first row is greater than the number of the first sub-heat exchange tubes in each of the second rows.

[0011] In some embodiments of the present invention, the plurality of the first sub-heat exchange tubes in the first row are evenly spaced along the second direction, the plurality of the first sub-heat exchange tubes in the second row are evenly spaced along the second direction, and along the second direction, the spacing between two adjacent first sub-heat exchange tubes in the first row is equal to the spacing between two adjacent first sub-heat exchange tubes in the second row.

[0012] In some embodiments of the present invention, along the arrangement direction of the windward side and the leeward side, the multiple rows of the first sub-heat exchange tubes also include two third rows located on both sides of the two second rows, and the number of the first sub-heat exchange tubes in each of the second rows is greater than the number of the first sub-heat exchange tubes in each of the third rows.

[0013] In some embodiments of the present invention, the plurality of first sub-heat exchange tubes in the third row are evenly spaced along the second direction, and along the second direction, the distance between two adjacent first sub-heat exchange tubes in the third row is equal to the distance between two adjacent first sub-heat exchange tubes in the second row.

[0014] In some embodiments of the present invention, along the arrangement direction of the windward side and the leeward side, two adjacent rows of the first sub-heat exchange tubes are staggered.

[0015] In some embodiments of the present invention, the coil assembly further includes a heat sink, and the heat sink is connected to at least one of the first sub-heat exchange tubes.

[0016] In some embodiments of the present invention, the coil assembly further includes a second sub-heat exchange tube, which is located on a side of one of the mounting components away from the other mounting component, and is respectively connected to two adjacent first sub-heat exchange tubes.

[0017] In some embodiments of the present invention, the mounting assembly further includes a shell, which is respectively connected to the two mounting parts, the coil assembly is located in the shell, one of the opposite sides of the shell is the windward side, and the other side is the leeward side, the shell is provided with an air inlet on the windward side, and an air outlet on the leeward side.

[0018] In a second aspect, the utility model provides a HVAC device, which includes a fan and a coil heat exchanger as described in any one of the above technical solutions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not to be considered as limiting the present invention. Moreover, the same reference numerals are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0020] Figure 1 The structure diagram of a coil heat exchanger provided according to an embodiment of the utility model is schematically shown at a viewing angle;

[0021] Figure 2 The structure diagram of a coil heat exchanger provided according to an embodiment of the utility model is schematically shown in another perspective;

[0022] Figure 3 The schematic diagram shows a structure of a coil heat exchanger connected to a fan according to an embodiment of the utility model;

[0023] Figure 4 The structure diagram of another coil heat exchanger provided according to an embodiment of the utility model is schematically shown at a viewing angle;

[0024] Figure 5 The structure diagram of another coil heat exchanger provided according to an embodiment of the utility model is schematically shown in another perspective;

[0025] Figure 6The schematic diagram shows another structure of a coil heat exchanger connected to a fan according to an embodiment of the utility model.

[0026] The reference numerals are as follows:

[0027] 100, coil heat exchanger; 101, windward side; 102, leeward side;

[0028] 10. Mounting assembly; 11. Mounting member; 111. First end portion; 112. Middle portion; 12. Housing; 121. Air inlet;

[0029] 20. Coil assembly; 21. First sub-heat exchange tube; 211. First row; 212. Second row; 213. Third row; 22. Heat sink;

[0030] 200, fan;

[0031] X, first direction; Y, second direction; Z, third direction;

[0032] a. First dotted line frame; b. Second dotted line frame. DETAILED DESCRIPTION

[0033] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0034] It should be understood that the terms used in the text are only for the purpose of describing specific example embodiments, and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used in the text may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0035] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0036] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is flipped, then the element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.

[0037] A coil heat exchanger is a common heat exchange device used in air conditioning systems, which is used to cool or heat air in buildings. The working principle of a coil heat exchanger is to use a fan to blow air to the surface of the coil, and the air exchanges heat with the surface of the coil, thereby cooling or heating the air.

[0038] Since the coil heat exchanger needs to be coordinated with the fan, the wind speed and air volume of the fan need to be considered when designing the coil heat exchanger. However, the relevant technology only considers the wind speed and air volume of the fan as a whole to design the number of heat exchange tubes in the coil heat exchanger, but ignores the fact that the wind speed in different areas of the fan is different during the air outlet process, especially along the width direction of the fan outlet, the air outlet speed on both sides of the fan is lower than the air outlet speed of the area between the two sides of the fan. The traditional coil heat exchanger is not designed according to the above characteristics of the fan. The heat exchange efficiency of any area of ​​the coil heat exchanger is the same, and it is impossible to perform corresponding heat exchange in the high wind speed area and the low wind speed area of ​​the fan outlet. The heat exchange efficiency of the coil heat exchanger needs to be improved.

[0039] In view of this, an embodiment of the present application provides a coil heat exchanger, which designs the layout density of the first sub-heat exchange tubes in the middle area of ​​the coil heat exchanger in the first direction to be greater than the layout density of the first sub-heat exchange tubes in the two side areas, so that the area with a small layout density of the first sub-heat exchange tubes exchanges heat for the low wind speed airflow, and the area with a large layout density of the first sub-heat exchange tubes exchanges heat for the high wind speed airflow, thereby further improving the heat exchange efficiency of the coil heat exchanger.

[0040] The following is combined with Figure 1-6 The coil heat exchanger provided in the embodiment of the present application is introduced.

[0041] Figure 1 The structure diagram of a coil heat exchanger 100 provided according to an embodiment of the utility model is schematically shown in one viewing angle. Figure 2 The structure diagram of a coil heat exchanger 100 provided according to an embodiment of the utility model is schematically shown in another perspective. Figure 3 The schematic diagram shows a structure of a coil heat exchanger 100 connected to a fan 200 according to an embodiment of the present invention.

[0042] Combined with Figure 1 , Attachment Figure 2 And attached Figure 3 As shown in , an embodiment of the present application provides a coil heat exchanger 100, which is used to connect to a fan 200. The fan 200 can be used as a part of the coil heat exchanger 100, or the fan 200 can be used as an independent structure and together with the coil heat exchanger 100 as a part of the HVAC equipment.

[0043] The coil heat exchanger 100 provided in this embodiment has a windward side 101 facing the fan 200 and a leeward side 102 away from the fan 200. The airflow from the air outlet of the fan 200 can enter the bystander heat exchanger through the windward side 101 for heat exchange, and then flow out through the leeward side 102. The windward side 101 and the leeward side 102 can be understood as side surfaces, and the side surfaces should be understood in a broad sense, not necessarily referring to a flat continuous plane, but also an intermittent surface.

[0044] The coil heat exchanger 100 provided in this embodiment includes a mounting assembly 10 and a coil assembly 20, wherein the mounting assembly 10 of this embodiment serves as an installation base for the coil assembly 20, and the mounting assembly 10 includes two mounting members 11 arranged at intervals along a first direction X in the figure, and the mounting members 11 are used to install the coil assembly 20.

[0045] The material of the mounting member 11 of this embodiment can be metal, such as stainless steel, copper or aluminum. The material of the mounting member 11 can also be a polymer material with a certain structural strength, such as polypropylene (PP), polyethylene (PE), polyethylene terephthalate (PET), etc.

[0046] The mounting member 11 of this embodiment can be a plate-shaped member as shown in the figure, or it can be a block-shaped member. The shape of the mounting member 11 can be approximately rectangular, and of course it can also be a trapezoidal, elliptical, etc., which are not listed one by one in this embodiment.

[0047] Each mounting member 11 of this embodiment has two first ends 111 opposite to each other along the second direction Y and a middle portion 112 located between the two first ends 111. The first ends 111 may be located at the positions of the two first dotted line frames a in the figure, and the middle portion 112 is the position of the mounting member 11 except the two first dotted line frames a. Figure 2 It can be seen that the maximum dimension of the middle portion 112 in the second direction Y can be greater than the maximum dimension of the two first ends 111 in the second direction Y. For example, the maximum dimension of the middle portion 112 in the second direction Y can be 2-5 times the sum of the maximum dimensions of the two first ends 111 in the second direction Y.

[0048] It can be understood that the first direction X mentioned in the above structural description intersects with the arrangement direction of the windward side 101 and the leeward side 102, and the second direction Y intersects with the first direction X and the arrangement direction of the windward side 101 and the leeward side 102, respectively. In some examples, optionally, the first direction X is perpendicular to the arrangement direction of the windward side 101 and the leeward side 102, and the second direction Y is perpendicular to the first direction X and the arrangement direction of the windward side 101 and the leeward side 102, respectively.

[0049] The coil assembly 20 of this embodiment is a spiral or disc-shaped tube structure, which is bent to form a plurality of first sub-heat exchange tubes 21 arranged at intervals along a third direction Z and a second direction Y, wherein the third direction Z is the arrangement direction of the windward side 101 and the leeward side 102. The opposite ends of each first sub-heat exchange tube 21 in the first direction X are connected to two mounting members 11 one by one.

[0050] In order to improve the heat exchange efficiency, in this embodiment, the layout density of the first sub-heat exchange tubes 21 connected to the two middle parts 112 is greater than the layout density of the first sub-heat exchange tubes 21 connected between the two first end parts 111. The layout density is the number of first sub-heat exchange tubes 21 on the mounting member 11 per unit length along the second direction Y. The unit length can be the area of ​​the mounting member 11 covered by the first dotted box a and the second dotted box b in the figure.

[0051] Attach Figure 2Taking the partial mounting parts 11 in the first dotted frame a and the partial mounting parts 11 in the second dotted frame b arranged along the first direction X as examples, the first dotted frame a is located at the first end 111, and the area of ​​the first dotted frame a is slightly smaller than the area of ​​the first end 111. The second dotted frame b is located in the middle part 112, and the areas of the first dotted frame a and the second dotted frame b are equal. It can be seen that the number of the first sub-heat exchange tubes 21 located at the first end 111 is four, and the number of the first sub-heat exchange tubes 21 located at the second end is five. At this time, it can be understood that the layout density of the first sub-heat exchange tubes 21 on the middle part 112 is greater than the layout density of the first sub-heat exchange tubes 21 on the first end 111.

[0052] The arrangement of the first sub-heat exchange tube 21 can match the phenomenon that the wind speed on both sides along the first direction X is lower than the middle wind speed when the fan 200 is exhausting air, so that the area with a low arrangement density of the first sub-heat exchange tube 21 exchanges heat for the low wind speed airflow, while the area with a high heat exchange arrangement density exchanges heat for the high wind speed airflow, which can improve the heat exchange efficiency of the high wind speed area in the heat exchanger, and at the same time can reduce the number of the first sub-heat exchange tubes 21 in the low wind speed area in the heat exchanger, thereby reducing costs.

[0053] Combine again with Figure 2 As shown in , in some examples, optionally, along the arrangement direction of the windward side 101 and the leeward side 102 or along the third direction Z, the multiple first sub-heat exchange tubes 21 of this embodiment are arranged in multiple rows, and each row has multiple first sub-heat exchange tubes 21 arranged at intervals along the second direction Y.

[0054] The third direction Z is the air inlet direction of the fan 200. Having multiple rows of first sub-heat exchange tubes 21 along the air inlet direction can improve the heat exchange efficiency and reduce the pressure drop, and is also conducive to realizing the above-mentioned design of designing the layout density of the first sub-heat exchange tubes 21 at the two first end portions 111 to be smaller than the layout density of the first sub-heat exchange tubes 21 in the middle portion 112.

[0055] In some examples, optionally, along the arrangement direction of the windward side 101 and the leeward side 102 or along the third direction Z, the multiple rows of first sub-heat exchange tubes 21 of the present embodiment include a first row 211 located in the middle of the mounting member 11 and a second row 212 located on both sides of the first row 211, and the number of the first sub-heat exchange tubes 21 in the first row 211 is greater than the number of the first sub-heat exchange tubes 21 in the second row 212.

[0056] For example, Figure 2The number of the first sub-heat exchange tubes 21 in the first row 211 is ten, and the number of the first sub-heat exchange tubes 21 in the second row 212 is nine. In this way, the first row 211 can protrude from the second rows 212 on both sides along the second direction Y in the figure, thereby making the layout density of the first sub-heat exchange tubes 21 located at the first end portion 111 less than the layout density of the first sub-heat exchange tubes 21 in the middle portion 112.

[0057] In some examples, optionally, the multiple first sub-heat exchange tubes 21 of the first row 211 of this embodiment are evenly spaced along the second direction Y, the multiple first sub-heat exchange tubes 21 of the second row 212 are evenly spaced along the second direction Y, and the spacing between two adjacent first sub-heat exchange tubes 21 in the first row 211 is equal to the spacing between two adjacent first sub-heat exchange tubes 21 in the second row 212.

[0058] The first sub-heat exchange tubes 21 of the first row 211 and the sub-heat exchange tubes of the second row 212 are designed to be equally spaced, and the spacing between two adjacent first sub-heat exchange tubes 21 of each is equal, which not only facilitates the first row 211 to protrude from the second rows 212 on both sides along the second direction Y in the figure, but also ensures that the fluid is evenly distributed in the heat exchange tube bundle, avoiding local overheating or cooling, thereby improving heat exchange efficiency. In addition, the equal spacing can make the tube bundle structure more stable, prevent vibration or resonance between the first sub-heat exchange tubes 21 due to uneven spacing, and is conducive to the safe operation of the equipment.

[0059] Figure 4 The structure diagram of another coil heat exchanger 100 provided according to an embodiment of the utility model at a viewing angle is schematically shown. Figure 5 The structure diagram of another coil heat exchanger 100 provided according to an embodiment of the utility model at another viewing angle is schematically shown. Figure 6 The schematic diagram shows another structure of a coil heat exchanger connected to a fan according to an embodiment of the utility model.

[0060] Combined with Figure 4 , Attachment Figure 5 And attached Figure 6 As shown in , in some examples, optionally, along the arrangement direction of the windward side 101 and the leeward side 102 or along the third direction Z in the figure, the multiple rows of first sub-heat exchange tubes 21 of this embodiment further include a third row 213 located on both sides of the two second rows 212, that is, the first row 211 is on both sides of the second row 212, and the second row 212 is on both sides of the third row 213, and the size of the mounting member 11 of the third row 213 in the third direction Z is greater than Figure 1-3Only the sizes of the mounting members 11 of the first row 211 and the second row 212 are set, and the number of the first sub-heat exchange tubes 21 of the third row 213 is less than the number of the first sub-heat exchange tubes 21 of the second row 212 .

[0061] For example Figure 5 The number of the first sub-heat exchange tubes 21 in the first row 211 is ten, the number of the first sub-heat exchange tubes 21 in the second row 212 is nine, and the number of the sub-heat exchange tubes in the third row 213 is eight. In this way, the first row 211 can protrude from the second row 212 on both sides along the second direction Y in the figure, and the second row 212 can protrude from the third row 213 on both sides along the second direction Y in the figure, so that the arrangement density of the first sub-heat exchange tubes 21 at the first end 111 in the third dotted line frame is less than the arrangement density of the first sub-heat exchange tubes 21 in the fourth dotted line frame in the middle part 112, and the areas of the third dotted line frame and the fourth dotted line frame are equal.

[0062] In some examples, optionally, the plurality of first sub-heat exchange tubes 21 of the third row 213 of this embodiment are evenly spaced along the second direction Y, and the spacing between two adjacent first sub-heat exchange tubes 21 in the third row 213 is equal to the spacing between two adjacent first sub-heat exchange tubes 21 in the second row 212 .

[0063] That is, the spacing between two adjacent first sub-heat exchange tubes 21 in the third row 213 of this embodiment is equal to the spacing between two adjacent first sub-heat exchange tubes 21 in the first row 211 and the second row 212. This structure not only facilitates the second row 212 to protrude from the third row 213 on both sides along the second direction Y in the figure, and facilitates the differentiation of the layout density of the first sub-heat exchange tubes 21 located at the first end 111 and the first sub-heat exchange tubes 21 located at the middle part 112, but also ensures that the fluid is evenly distributed in the heat exchange tube bundle, avoiding local overheating or cooling, thereby improving the heat exchange efficiency.

[0064] Combined with the attachment again Figure 1-6 As shown in the figure, in some examples, optionally, along the arrangement direction of the windward side 101 and the leeward side 102 or along the third direction Z in the figure, two adjacent rows of the first sub-heat exchange tubes 21 of this embodiment are staggered.

[0065] Specifically, Figure 2 Taking the first row 211 and the second row 212 in the figure as an example, along the arrangement direction of the windward side 101 and the leeward side 102, or along the third direction Z in the figure, one of the first sub-heat exchange tubes 21 in the first row 211 and the first sub-heat exchange tube 21 in the second row 212 are not on the same straight line, forming a staggered structure.

[0066] This staggered structural form allows the airflow blown out by the fan 200 to be directly blown into the first sub-heat exchange tubes 21 in the first row 211 for heat exchange after passing through two adjacent first sub-heat exchange tubes 21 in the second row 212, which can further improve the heat exchange efficiency to a certain extent.

[0067] Combined with the attachment again Figure 1 As shown in the drawings, in some examples, optionally, the coil assembly 20 of this embodiment further includes a heat sink 22 , and the heat sink 22 is connected to at least one first sub-heat exchange tube 21 .

[0068] The heat sink 22 of this embodiment can be a heat sink fin. The material of the heat sink fin can be the same as the material of the aforementioned first sub-heat exchange tube 21. For example, both can be stainless steel, copper or aluminum. The number of heat sinks 22 can be multiple or one. When the number of heat sinks 22 of this embodiment is multiple, each heat sink 22 can be connected to one or more first sub-heat exchange tubes 21.

[0069] In addition, when there are multiple heat sinks 22 in this embodiment, the multiple heat sinks 22 can be as follows: Figure 4 As shown in the figure, they are arranged at intervals along the first direction X in the figure, or they are arranged in a stacked manner along the first direction X (this embodiment is not shown in the figure).

[0070] Combined with the attachment again Figure 1 and attached Figure 4 As shown in , in some examples, optionally, the installation assembly 10 of this embodiment further includes a shell 12, and the coil assembly 20 is located in the shell 12, and the shell 12 is used to protect the heat exchange coil of this embodiment.

[0071] The shell 12 of this embodiment can be a box structure with openings at both ends along the first direction X. The two ends of the shell 12 are respectively connected to the two mounting members 11. Therefore, the two second mounting members 11 of this embodiment can be understood as two end plates of the shell 12. One of the opposite sides of the shell 12 is the windward side 101, and the other side is the leeward side 102. The shell 12 is provided with an air inlet 121 on the windward side 101 and an air outlet on the leeward side 102 (not shown in the figure).

[0072] The material of the shell 12 of this embodiment can be the same as the material of the aforementioned mounting member 11, for example, both are metals such as stainless steel, copper, and aluminum, or the shell 12 and the mounting member 11 are both polymer materials such as polypropylene (PP), polyethylene (PE), and polyethylene terephthalate (PET). Of course, the materials of the shell 12 and the mounting member 11 can also be different, for example, the shell 12 is a polymer material, and the mounting member 11 is a metal material.

[0073] In addition, in some examples, optionally, the coil assembly 20 of this embodiment also includes multiple second sub-heat exchange tubes (not shown in the figure), the second sub-heat exchange tubes can be a U-shaped tube structure, the material of the second sub-heat exchange tubes is the same as the material of the first sub-heat exchange tubes 21, and the function of the second sub-heat exchange tubes is to connect two adjacent first sub-heat exchange tubes 21.

[0074] Specifically, the second sub-heat exchange tube of the present embodiment is located on the side of one of the mounting parts 11 away from the other mounting part 11. On any mounting part 11, one ends of multiple first sub-heat exchange tubes 21 of the present embodiment are paired in pairs, and one end of a first sub-heat exchange tube 21 needs to be reserved for connecting the evaporator or the condenser. Then, one end of two adjacent first sub-heat exchange tubes 21 after pairing are connected through a second sub-heat exchange tube of the present embodiment, so that the coil assembly 20 of the present embodiment finally forms a spirally coiled tube body structure.

[0075] Based on the above coil heat exchanger 100, the embodiment of the utility model further provides a HVAC device, which includes a fan 200 and the coil heat exchanger 100 as described in the above technical solution, combined with the attached Figure 3 As shown in , the fan 200 is installed on the housing 12 , and the air outlet of the fan 200 faces the air inlet 121 of the housing 12 on the windward side 101 .

[0076] Furthermore, the coil heat exchanger 100 of this embodiment may be a part of the evaporator or condenser of a HVAC device. Other components of the HVAC device (such as an expansion valve) and the specific working principle of the HVAC device may be understood by referring to the relevant technologies.

[0077] In some examples, optionally, the HVAC equipment of this embodiment is an air conditioner, and the air conditioner is specifically a rooftop unit. The structure of other parts of the rooftop unit can refer to the prior art, and this application will not repeat them here. Of course, the HVAC equipment of this embodiment can also include but is not limited to multi-split units, heat pumps, water heaters, swimming pool units, etc., which are not listed one by one in this embodiment.

[0078] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A coil heat exchanger having a windward side (101) and a leeward side (102) disposed opposite to each other, characterized in that: include: A mounting assembly (10), the mounting assembly (10) comprising two mounting members (11) arranged at intervals along a first direction (X), the first direction (X) intersecting with the arrangement direction of the windward side (101) and the leeward side (102), each mounting member (11) having two opposite first end portions (111) along a second direction (Y) and a middle portion (112) located between the two first end portions (111), the second direction (Y) intersecting with the first direction (X) and the arrangement direction of the windward side (101) and the leeward side (102); A coil assembly (20), the coil assembly (20) comprising a plurality of first sub-heat exchange tubes (21), each of the first sub-heat exchange tubes (21) being connected to two of the mounting components (11) at opposite ends along the first direction (X), wherein the arrangement density of the first sub-heat exchange tubes (21) connected to the middle portion (112) is greater than the arrangement density of the first sub-heat exchange tubes (21) connected to the first end portion (111), and the arrangement density is the number of the first sub-heat exchange tubes (21) on the mounting component (11) per unit length along the second direction (Y).

2. The coil heat exchanger according to claim 1, characterized in that: Along the arrangement direction of the windward side (101) and the leeward side (102), the plurality of first sub-heat exchange tubes (21) are arranged in a plurality of rows, and each row has a plurality of first sub-heat exchange tubes (21) arranged at intervals along the second direction (Y).

3. The coil heat exchanger according to claim 2, characterized in that: Along the arrangement direction of the windward side (101) and the leeward side (102), the plurality of rows of the first sub-heat exchange tubes (21) include a first row (211) located in the middle of the mounting member (11) and two second rows (212) located on both sides of the first row (211), and the number of the first sub-heat exchange tubes (21) in the first row (211) is greater than the number of the first sub-heat exchange tubes (21) in each of the second rows (212).

4. The coil heat exchanger according to claim 3, characterized in that: The plurality of first sub-heat exchange tubes (21) of the first row (211) are evenly spaced apart along the second direction (Y), and the plurality of first sub-heat exchange tubes (21) of the second row (212) are evenly spaced apart along the second direction (Y), and along the second direction (Y), a distance between two adjacent first sub-heat exchange tubes (21) of the first row (211) is equal to a distance between two adjacent first sub-heat exchange tubes (21) of the second row (212).

5. The coil heat exchanger according to claim 4, characterized in that: Along the arrangement direction of the windward side (101) and the leeward side (102), the multiple rows of the first sub-heat exchange tubes (21) further include two third rows (213) located on both sides of the two second rows (212), and the number of the first sub-heat exchange tubes (21) in each of the second rows (212) is greater than the number of the first sub-heat exchange tubes (21) in each of the third rows (213).

6. The coil heat exchanger according to claim 5, characterized in that: The plurality of first sub-heat exchange tubes (21) in the third row (213) are evenly spaced apart along the second direction (Y); along the second direction (Y), a distance between two adjacent first sub-heat exchange tubes (21) in the third row (213) is equal to a distance between two adjacent first sub-heat exchange tubes (21) in the second row (212).

7. The coil heat exchanger according to any one of claims 2 to 6, characterized in that: Along the arrangement direction of the windward side (101) and the leeward side (102), two adjacent rows of the first sub-heat exchange tubes (21) are staggered.

8. The coil heat exchanger according to any one of claims 1 to 6, characterized in that: The coil assembly (20) further comprises a heat sink (22), wherein the heat sink (22) is connected to at least one of the first sub-heat exchange tubes (21).

9. The coil heat exchanger according to any one of claims 1 to 6, characterized in that: The coil assembly (20) further comprises a second sub-heat exchange tube, which is located on a side of one of the mounting parts (11) away from the other mounting part (11), and is respectively connected to two adjacent first sub-heat exchange tubes (21).

10. The coil heat exchanger according to any one of claims 1 to 6, characterized in that: The mounting assembly (10) further comprises a shell (12), wherein the shell (12) is respectively connected to the two mounting members (11); the coil assembly (20) is located in the shell (12); one of the two opposite sides of the shell (12) is the windward side (101), and the other side is the leeward side (102); the shell (12) is provided with an air inlet (121) on the windward side (101), and is provided with an air outlet on the leeward side (102).

11. A HVAC equipment, characterized in that: It comprises a fan (200) and a coil heat exchanger (100) according to any one of claims 1 to 10.

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