Heat exchange unit and air handling unit
By introducing a water collection tray and pipe sleeve design into the heat exchange unit, the problem of water leakage caused by condensation flow around the evaporator pipes was solved, achieving a better waterproof effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-03-24
AI Technical Summary
In existing technologies, condensation easily forms around the outer periphery of the evaporator pipes in heat exchange devices, causing the condensation to flow along the pipes and resulting in water leakage, thus having poor waterproofing performance.
Design a heat exchange unit including a water receiving pan, heat exchange pipeline and a sleeve. The sleeve is fitted onto the heat exchange pipeline and can directly collect the liquid flowing along the outer periphery of the pipeline and introduce it into the water receiving chamber for storage through the water receiving pan.
It effectively prevents condensation from flowing along the heat exchange pipeline, improves the waterproof performance of the heat exchange unit, and avoids water leakage.
Smart Images
Figure CN224034000U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to heat exchanger technical field, especially heat exchange unit and air handling unit. BACKGROUND
[0002] The heat exchange device has condensation phenomenon, therefore needs to have waterproof design, especially for the evaporator of the ducted air conditioner, the condensation is easy to form on the periphery of the evaporator pipeline, and the condensation of other positions is also easy to drop or be blown to the evaporator pipeline, and the condensation on the periphery of the evaporator pipeline will flow along the pipeline, so that the evaporator appears the water leakage phenomenon. SUMMARY
[0003] The utility model discloses a kind of heat exchange unit and air handling unit, the heat exchange unit can flow along the periphery of the liquid of heat exchange pipeline and play the role of flow guide and collection, so that the waterproof performance of heat exchange unit is better.
[0004] To achieve the above object, the utility model embodiment adopts the following technical scheme:
[0005] Heat exchange assembly;
[0006] Water pan, located on the side of the heat exchange assembly along the first direction, the water pan is provided with water receiving cavity with opening towards the heat exchange assembly;
[0007] Heat exchange pipeline, connected to the heat exchange assembly;
[0008] Pipe sleeve, sleeved on the heat exchange pipeline, the pipe sleeve can receive the liquid flowing along the periphery of the heat exchange pipeline, and the liquid is introduced into the water receiving cavity.
[0009] In some embodiments, the heat exchange unit further includes a housing, the housing forms a cavity, the heat exchange assembly and the heat exchange pipeline are located in the cavity, and the housing has an external connection hole;The heat exchange pipeline includes an external connection section, the external connection section is adapted to connect an external pipeline, and the external connection section is arranged in the external connection hole;The pipe sleeve is at least partially located in the cavity, and the pipe sleeve is sleeved on one end of the external connection section adapted to connect the external pipeline.
[0010] In some embodiments, the external connection section includes a refrigerant inlet section and a refrigerant outlet section, and the pipe sleeve is sleeved on the refrigerant inlet section or the refrigerant outlet section.
[0011] In some embodiments, the pipe sleeve is located on one side of the cavity close to the external connection hole;Or, the pipe sleeve is at least partially arranged in the external connection hole.
[0012] In some embodiments, the pipe sleeve comprises a fixed portion and a guide portion connected to each other, the fixed portion is sleeved on the heat exchange pipe, the guide portion is located between the water pan and the heat exchange pipe along the first direction, and the guide portion at least partially overlaps with the water cavity.
[0013] In some embodiments, the heat exchange pipe comprises a first pipe and a second pipe connected to each other, the axis of the first pipe is arranged to cross the axis of the second pipe, the outer periphery of the fixed portion is provided with a avoiding opening, the fixed portion is sleeved on the first pipe, and the second pipe is arranged to pass through the avoiding opening.
[0014] In some embodiments, the second pipe is located on the side of the guide portion away from the water pan, and the guide portion covers the second pipe as viewed along the first direction.
[0015] In some embodiments, the heat exchange unit further comprises a housing, the housing forms a containing cavity, the heat exchange assembly and the heat exchange pipe are located in the containing cavity.
[0016] The housing is provided with a first limiting hole, the pipe sleeve comprises a positioning protrusion, the positioning protrusion extends into the first limiting hole to limit the circumferential rotation of the pipe sleeve along the heat exchange pipe; and / or the heat exchange unit further comprises a heat preservation portion located in the containing cavity and attached to the housing, the heat preservation portion is provided with a second limiting hole, the pipe sleeve comprises a positioning protrusion, the positioning protrusion extends into the second limiting hole to limit the circumferential rotation of the pipe sleeve along the heat exchange pipe.
[0017] In some embodiments, the pipe sleeve comprises a fixed portion and a limiting protrusion, the fixed portion is sleeved on the outer periphery of the heat exchange pipe, one side of the limiting protrusion is connected to the inner periphery of the fixed portion, the other side of the limiting protrusion protrudes towards the axis of the heat exchange pipe, and abuts against the outer periphery of the heat exchange pipe.
[0018] In some embodiments, the pipe sleeve comprises a first petal and a second petal connected to each other, the first petal and the second petal are collectively sleeved on the outer periphery of the heat exchange pipe;
[0019] One side of the first petal is integrally connected with the second petal, the other side of the first petal is spaced from the second petal or abuts against each other along the circumferential direction of the heat exchange pipe, and the pipe sleeve can be elastically deformed along the radial direction of the heat exchange pipe after being subjected to an external force; or one side of the first petal is hingedly connected to one side of the second petal, the other side of the first petal is spaced from the other side of the second petal or abuts against each other along the circumferential direction of the heat exchange pipe; or the first petal and the second petal are detachably connected.
[0020] In some embodiments, the pipe sleeve comprises a fixing portion sleeved on the outer periphery of the heat exchange pipeline, an inner periphery of the fixing portion is provided with a pipe through hole, the heat exchange pipeline is arranged in the pipe through hole, and an outer periphery of the fixing portion is provided with an annular groove extending along an axis surrounding the pipe through hole.
[0021] The embodiment of the second aspect of the utility model further provides an air handling unit, comprising the heat exchange unit of any one of the above embodiments, and a supply air unit connected to the heat exchange unit.
[0022] Compared with the prior art, the utility model has the advantages of:
[0023] The heat exchange unit comprises a heat exchange assembly, a water collecting tray, a heat exchange pipeline and a pipe sleeve. The water collecting tray is located on one side of the heat exchange assembly along a first direction, and the water collecting tray is provided with a water collecting cavity with an opening facing the heat exchange assembly and being suitable for storing liquid. The heat exchange pipeline is connected to the heat exchange assembly. The pipe sleeve is sleeved on the heat exchange pipeline, and the pipe sleeve can collect liquid flowing along the outer periphery of the heat exchange pipeline and guide the liquid into the water collecting cavity. In the related art, water leakage is avoided from the perspective of anti-condensation or water collecting design, but condensation cannot be directly avoided from flowing along the pipeline, and the waterproof effect is poor. In the scheme of the utility model, the liquid flowing along the heat exchange pipeline can be directly collected through the setting of the pipe sleeve, and the liquid can be guided into the water collecting cavity. Therefore, the heat exchange unit of the utility model can guide and collect the liquid flowing along the outer periphery of the heat exchange pipeline, so that the waterproof performance of the heat exchange unit is better. BRIEF DESCRIPTION OF DRAWINGS
[0024] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained from the structures shown in the drawings without creative labor for those skilled in the art.
[0025] Figure 1 It is a three-dimensional schematic view of the heat exchange unit provided in an embodiment of the utility model, wherein the pipe sleeve is removed.
[0026] Figure 2 It is a three-dimensional schematic view of the pipe sleeve provided in an embodiment of the utility model.
[0027] Figure 3 It is a three-dimensional schematic view of the combination of the pipe sleeve and the heat exchange pipeline provided in an embodiment of the utility model.
[0028] Figure 4 It is a three-dimensional schematic view of the combination of the pipe sleeve, the heat exchange pipeline, the external connecting plate and the heat preservation portion provided in an embodiment of the utility model.
[0029] Explanation of reference signs:
[0030] Heat exchange unit 100;
[0031] Heat exchange assembly 110;
[0032] Heat exchange pipeline 120;External section 121;First pipe 122;Second pipe 123;Elbow pipe 124;
[0033] Pipe sleeve 130;Positioning protrusion 131;Fixed part 132;Pipe hole 1321;Pipe opening 13211;Avoidance opening 1322;Annular groove 1323;Limiting protrusion 133;First flap body 134;Second flap body 135;Guide part 136;
[0034] Shell 140;Cavity 141;External plate 142;External hole 1421;First limiting hole 143;
[0035] Heat preservation part 150;Second limiting hole 151;
[0036] Water pan 160;Water receiving cavity 161;
[0037] Air handling unit 200;
[0038] First direction X.
[0039] The realization, functional characteristics and advantages of the utility model will be further described with reference to the drawings in combination with embodiments. DETAILED DESCRIPTION
[0040] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0041] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture, and if the certain posture changes, the directional indications will also change accordingly.
[0042] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, if "and / or", "and / or" or "and / or" appears in the whole text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.
[0043] The heat exchange device has condensation phenomenon, so it needs to have waterproof design, especially for the evaporator of ducted air conditioner, the outer periphery of evaporator pipeline is easy to form condensation, and the condensation of other positions is also easy to drop or be blown to the evaporator pipeline, the condensation of the outer periphery of the evaporator pipeline will flow along the pipeline, so that the evaporator leaks. In the related art, the leakage can be avoided from the aspects of anti-condensation or water collecting design, but the flow of condensation along the evaporator pipeline cannot be directly avoided, and the waterproof effect is poor.
[0044] In view of this, referring to Figures 1-4 The embodiments of the utility model provide a heat exchange unit 100. The heat exchange unit 100 can be used to realize heat transfer, and its core functional principle can be to transfer heat from one fluid to another fluid, or from solid to fluid, to achieve the purpose of heating, cooling or energy recovery. The heat exchange unit 100 can be used in ducted air conditioner, air conditioner, refrigerator and other types of refrigeration or heating equipment.
[0045] Specifically, the heat exchange unit 100 includes heat exchange assembly 110, heat exchange pipeline 120 and pipe sleeve 130. Referring to Figure 1 The heat exchange assembly 111 is the part of the heat exchange unit 100 that mainly plays the role of heat exchange, and the heat exchange assembly 111 can specifically adopt tube type heat exchange structure, or plate type heat exchange structure, or other suitable type of heat exchange structure; The water collecting tray 160 is used to collect condensed water and can discharge it. In some embodiments, the water collecting tray 160 is connected to the heat exchange assembly 111; in other embodiments, the water collecting tray 160 is arranged separately from the heat exchange assembly 111. In addition, the shape and setting position of the water collecting tray 160 can be determined as appropriate.
[0046] Referring to Figure 1The water collecting disc 160 is located at one side of the heat exchanging assembly 110 along the first direction X, and is provided with a water collecting cavity 161 which is open to the heat exchanging assembly 110 and is adapted to store liquid. The pipe sleeve 130 can directly guide the liquid into the water collecting cavity 161. In different use scenarios, the first direction X can be any direction. For example, when the heat exchanging unit 100 is placed in a position such that the pipe sleeve 130 can collect liquid, the first direction X is the direction of gravity, and the water collecting disc 160 is located at the lower side of the heat exchanging pipeline 120.
[0047] With reference to Figure 1 The heat exchanging pipeline 120 is connected to the heat exchanging assembly 111. It can be understood that the heat exchanging pipeline 120 is a pipeline located outside the heat exchanging assembly 111 and cooperates with the heat exchanging assembly 111. According to the type of the heat exchanging assembly 111 and the pipe arrangement requirement, the heat exchanging pipeline 120 can be connected to any suitable position of the heat exchanging assembly 111. In some embodiments, the heat exchanging pipeline 120 can be integrally formed with the internal pipeline of the heat exchanging assembly 111, and in this case, the heat exchanging pipeline 120 can be regarded as a pipeline extending from the inside of the heat exchanging assembly 111. In other embodiments, the heat exchanging pipeline 120 can be manufactured independently of the heat exchanging assembly 111, and then connected to the heat exchanging assembly 111 in a detachable or integral manner. According to the requirement, the heat exchanging pipeline 120 can have any suitable cross-sectional shape (in the embodiments of the present application, the heat exchanging pipeline 120 is taken as a circular pipe), and the heat exchanging pipeline 120 can include straight pipes and bends 124, and the heat exchanging pipeline 120 can be connected to valves, pipe joints and other pipeline accessories.
[0048] With reference to Figures 1-3 The pipe sleeve 130 is sleeved on the heat exchanging pipeline 120, and can collect liquid flowing along the outer periphery of the heat exchanging pipeline 120 and guide the liquid into the water collecting cavity 161. According to the requirement, the pipe sleeve 130 can be sleeved on any pipe section of the heat exchanging pipeline 120. The pipe sleeve 130 can have different connection forms. In some embodiments, the pipe sleeve 130 is sleeved on the heat exchanging pipeline 120, and the pipe sleeve 130 can slide on the outer wall of the heat exchanging pipeline 120 under the action of external force. In other embodiments, the pipe sleeve 130 is fixedly connected to the heat exchanging pipeline 120, so that the pipe sleeve 130 cannot move relative to the heat exchanging pipeline 120. In addition, in some embodiments, the pipe sleeve 130 completely wraps the outer wall of the heat exchanging pipeline 120, so that the pipe sleeve 130 is completely sleeved on the heat exchanging pipeline 120. In other embodiments, the pipe sleeve 130 is only partially sleeved on the outer wall of the heat exchanging pipeline 120, but not completely wrapped. The specific way in which the pipe sleeve 130 collects liquid is described below. In some embodiments, the pipe sleeve 130 can collect liquid dripping in the direction of gravity, which can be liquid dripping from the heat exchanging pipeline 120 or liquid dripping from other positions (for example, the shell of an evaporator provided with the heat exchanging unit 100).
[0049] In the technical scheme of the utility model, the heat exchange unit 100 includes heat exchange assembly 110, water pan 160, heat exchange pipeline 120 and pipe sleeve 130. Water pan 160 is located at one side of heat exchange assembly 110 along the first direction X, water pan 160 is provided with water receiving cavity 161 which is open to heat exchange assembly 110 and is suitable for storing liquid, and heat exchange pipeline 120 is connected to heat exchange assembly 111. Pipe sleeve 130 is sleeved on heat exchange pipeline 120, pipe sleeve 130 can collect liquid flowing along the outer periphery of heat exchange pipeline 120 and guide the liquid into water receiving cavity 161. In the related art, water leakage is avoided from the perspective of anti-condensation or water receiving design, but condensation cannot be directly avoided from flowing along the pipeline, and the waterproof effect is poor. In the scheme of the utility model, through the arrangement of pipe sleeve 130, liquid flowing along heat exchange pipeline 120 can be directly collected, and the liquid can be guided into water receiving cavity 161. Therefore, the heat exchange unit 100 of the utility model can guide and collect the liquid flowing along the outer periphery of heat exchange pipeline 120, so that the waterproof performance of heat exchange unit 100 is better.
[0050] Referring to Figures 1-3 , the specific position of pipe sleeve 130 sleeved on heat exchange pipeline 120 is introduced below. In some embodiments, heat exchange pipeline 120 includes an external connection section 121, which is suitable for connecting external pipelines of heat exchange unit 100. The external connection section 121 is a part of heat exchange pipeline 120, and the external connection section 121 and other parts of heat exchange pipeline 120 can be integrally connected or detachably connected. Pipe sleeve 130 is sleeved on one end of external connection section 121 connected to the external pipeline, and specifically can include the following two forms: the first type is that the end of external connection section 121 and the end of external pipeline are connected in pipe sleeve 130; the second type is that the end of external connection section 121 penetrates out of pipe sleeve 130 and is connected to the external pipeline, and the penetrated part can be a pipe joint.
[0051] The external connection section 121 explained in the above embodiments can include a refrigerant inlet section and a refrigerant outlet section, that is, one end of the refrigerant inlet section serves as a refrigerant inlet, and one end of the refrigerant outlet section serves as a refrigerant outlet. In this regard, in some embodiments, pipe sleeve 130 is sleeved on the refrigerant inlet section or the refrigerant outlet section. In other embodiments, the number of pipe sleeves 130 is multiple, at least one pipe sleeve 130 is sleeved on the refrigerant inlet section, and at least one pipe sleeve 130 is sleeved on the refrigerant outlet section. By arranging the position of pipe sleeve 130 on the refrigerant inlet section or the refrigerant outlet section, the position can be more targetedly waterproofed, and the position is more convenient for disassembling pipe sleeve 130.
[0052] Referring to Figures 1-4In some embodiments, the heat exchange unit 100 further comprises a housing 140, the housing 140 forms a containing cavity 141, the heat exchange assembly 110 and the heat exchange pipeline 120 are located in the containing cavity 141, the housing 140 comprises an external connecting plate 142, the external connecting plate 142 has an external connecting hole 1421. Based on the above definition, in one type of pipe sleeve 130 arrangement, the pipe sleeve 130 is arranged through the external connecting hole 1421, that is, a part of the pipe sleeve 130 is located in the containing cavity 141, and the other part is arranged out of the containing cavity 141 through the external connecting hole 1421; in another type of pipe sleeve 130 arrangement, the pipe sleeve 130 is located in the containing cavity 141 close to the external connecting hole 1421, and after the external connecting section 121 is connected with the external pipeline, the external pipeline can be arranged out of the containing cavity 141 through the external connecting hole 1421. That is, the pipe sleeve 130 and the external connecting section 121 are both located in the containing cavity 141 and close to the external connecting hole 1421, so that the pipe sleeve 130, the external connecting section 121 and the external pipeline are more convenient to disassemble and assemble. It should be noted that for the housing 140 described in the above embodiments, in other embodiments, the housing 140 is an external structure of the heat exchange unit 100, for example, the housing 140 is a part of the evaporator 200, and the heat exchange unit 100 itself does not comprise the housing 140.
[0053] In order to make the pipe sleeve 130 more reliable in installation, referring to Figures 2-4 In some embodiments, the pipe sleeve 130 comprises a positioning protrusion 131, the housing 140 has a first limiting hole 143, and the positioning protrusion 131 extends into the first limiting hole 143 to limit the rotation of the pipe sleeve 130 along the circumference of the heat exchange pipeline 120. It can be understood that through the cooperation of the positioning protrusion 131 and the first limiting hole 143, the displacement of the pipe sleeve 130 relative to the housing 140 along the circumference (i.e. the circumference of the heat exchange pipeline 120) is limited, so as to avoid the pipe sleeve 130 from shaking or falling off. Referring to Figure 4 In other embodiments, the pipe sleeve 130 comprises a positioning protrusion 131, and the heat exchange unit 100 further comprises a heat preservation part 150, the heat preservation part 150 is arranged in the containing cavity 141 and between the pipe sleeve 130 and the housing 140, the heat preservation part 150 has a second limiting hole 151, and the positioning protrusion 131 extends into the second limiting hole 151 to limit the rotation of the pipe sleeve 130 along the circumference of the heat exchange pipeline 120. It can be understood that the cooperation form and function of the positioning protrusion 131 and the second limiting hole 151 are similar to those of the positioning protrusion 131 and the first limiting hole 143 in the previous type of embodiment, and the difference lies in the different arrangement positions of the first limiting hole 143 and the second limiting hole 151. In addition, in some embodiments, the first limiting hole 143 and the second limiting hole 151 are arranged at the same time, and the positioning protrusion 131 extends into the first limiting hole 143 and the second limiting hole 151 at the same time to play a double limiting role. More specifically, referring to Figures 2-4In some embodiments, the positioning protrusion 131 is located on the end face of the sleeve 130 facing the housing 140 (or the insulation part 150), and the positioning protrusion 131 has a protrusion structure. It should be noted that when the extension direction of the heat exchange pipeline 120 changes, the orientation setting of the sleeve 130 in various embodiments of this application is based on a portion of the heat exchange pipeline 120 fitted by the sleeve 130. For example, in the limitation restricting the sleeve 130 from rotating circumferentially along the heat exchange pipeline 120, the circumferential direction specifically refers to the circumferential direction of the portion of the heat exchange pipeline 120 passing through the sleeve 130.
[0054] Reference Figures 2-4 In some embodiments, the sleeve 130 includes a fixing part 132 and a limiting protrusion 133. The fixing part 132 is sleeved on the outer periphery of the heat exchange pipe 120. In this case, the fixing part 132 may completely or partially cover the heat exchange pipe 120. One side of the limiting protrusion 133 is connected to the inner periphery of the fixing part 132, and the other side protrudes towards the axis of the heat exchange pipe 120 and abuts against the outer periphery of the heat exchange pipe 120. It is understood that the limiting protrusion 133 is a structure located inside the fixing part 132 for pressing against the heat exchange pipe 120. Therefore, the limiting protrusion 133 can be designed with any suitable structure. Figures 2-4 In the embodiment shown, the limiting protrusion 133 is a rectangular strip, the long side of which extends perpendicularly to the axial direction of the sleeve 130, and there are two limiting protrusions 133, which respectively abut against both sides of the heat exchange pipeline 120.
[0055] To facilitate the fitting of the sleeve onto the heat exchange pipe 120, in some embodiments, the sleeve 130 is capable of radial elastic deformation along the heat exchange pipe 120 after being subjected to external force. Therefore, the material of the sleeve 130 can be a soft material such as rubber or silicone. Additionally, refer to... Figure 2In some embodiments, the pipe sleeve 130 comprises a first petal 134 and a second petal 135, which are collectively arranged around the outer periphery of the heat exchange pipe 120. Based on the above arrangement of the first petal 134 and the second petal 135, in one connection mode, along the circumferential direction of the heat exchange pipe 120, one end of the first petal 134 is integrally connected with the second petal 135, and the other end is spaced apart from the second petal 135. In this arrangement, the first petal 134 and the second petal 135 can both be made of a material with a small elastic modulus, and the user can separate the first petal 134 and the second petal 135 from the above-mentioned spaced position to increase the inner diameter of the pipe sleeve 130, thereby more conveniently sleeving the pipe sleeve 130 on the heat exchange pipe 120. It should be noted that the above-mentioned spacing between the first petal 134 and the second petal 135 can only have a gap therebetween, which can be formed by cutting the pipe sleeve 130 in half along the radial direction after integrally forming the pipe sleeve 130, the other half being the part integrally connected with the first petal 134 and the second petal 135, and the above-mentioned spacing can be complete spacing, or the first petal 134 and the second petal 135 can still contact each other under the action of elastic force. In another connection mode, along the circumferential direction of the heat exchange pipe 120, one side of the first petal 134 is hingedly connected to one side of the second petal 135, and at the same time, the other side of the first petal 134 and the other side of the second petal 135 can collectively clamp the pipe sleeve 130. In another connection mode, the first petal 134 and the second petal 135 are detachably connected. In this arrangement, the first petal 134 and the second petal 135 can be manufactured separately, and the detachable connection mode can make the connection more stable. The above-mentioned detachable connection can specifically adopt one of threaded connection, buckle connection, pin connection, magnetic attraction connection. In addition, in some embodiments, when the pipe sleeve 130 is made of a material with a small elastic modulus, a binding structure (such as a binding belt, an elastic band, etc.) can also be used to bind the pipe sleeve 130 and the heat exchange pipe 120 tightly.
[0056] The more specific appearance structure of the pipe sleeve 130 will be described below. Referring to Figures 2-4In some embodiments, the pipe sleeve 130 comprises a guide portion 136 and a fixing portion 132 connected to each other. In order to facilitate the introduction of liquid into the water pan 160, in some embodiments, the guide portion 136 is located between the water pan 160 and the heat exchange pipe 120 along the first direction X, and along the first direction X, the projection of the guide portion 136 at least partially overlaps with the projection of the outer contour of the water pan cavity 161. The fixing portion 132 forms a pipe through hole 1321 and an avoidance opening 1322. The pipe through hole 1321 is connected to one side of the guide portion 136 as a pipe opening 13211, wherein the pipe through hole 1321 is provided for the heat exchange pipe 120 to pass through, and the avoidance opening 1322 is provided. The avoidance opening 1322 can be located at the outer periphery of the fixing portion 132. In some embodiments, along the axial direction of the pipe through hole 1321, the avoidance opening 1322 is connected to the pipe opening 13211, i.e. the avoidance opening 1322 is an open opening. In other embodiments, the avoidance opening 1322 is not connected to the pipe opening 13211, i.e. the avoidance opening 1322 is an independently arranged opening. According to the structure of the pipe sleeve 130 described above, reference is made to Figure 3In some embodiments, the heat exchange pipeline 120 includes a first pipe 122 and a second pipe 123, an axis of the first pipe 122 is arranged to cross an axis of the second pipe 123, the outer periphery of the fixing portion 132 is provided with an avoiding opening 1322, the fixing portion 132 is sleeved on the first pipe 122, and the second pipe 123 is arranged through the avoiding opening 1322. More specifically, the heat exchange pipeline 120 can further include a bend pipe 124 connecting the first pipe 122 and the second pipe 123. At least part of the bend pipe 124 can extend into the pipe penetrating hole 1321 from the avoiding opening 1322. The first pipe 122, the second pipe 123 and the bend pipe 124 can be integrally connected. The guide portion 136 can mainly function to receive liquid from any part of the heat exchange pipeline 120 and guide the liquid to the water pan 160. According to the above arrangement, the structure of the pipe sleeve 130 can be more suitable for the structure of the heat exchange pipeline 120. On the one hand, the arrangement of the avoiding opening 1322 can make it more convenient to assemble the heat exchange pipeline 120 and the pipe sleeve 130, and the assembly is more convenient. On the other hand, under the premise that the total size of the pipe sleeve 130 in the axial direction does not change, the heat exchange pipeline 120 can abut (or close to) one side of the opening edge of the avoiding opening 1322 along the axial direction of the first pipe 122. At this time, the opening edge of the avoiding opening 1322 can function to axially position the heat exchange pipeline 120, and at the same time, the second pipe 123 is closer to the fixing portion 132. From the axial direction of the first pipe 122, the guide portion 136 can cover the second pipe 123, so that the water receiving and guiding functions of the guide portion 136 are better. In order to better guide, in some embodiments, the guide portion 136 can extend in a direction close to the water pan 160 relative to the axis of the first pipe 122, for example, in the direction of the fixing portion 132 pointing to the guide portion 136, the guide portion 136 gradually extends downward. When the pipe sleeve 130 includes the guide portion 136 and the fixing portion 132, it can also include the first petal 134 and the second petal 135. In the embodiment shown in the figure, the first petal 134 includes a part of the guide portion 136 and a part of the fixing portion 132 which are cut, and the second petal 135 includes another part of the guide portion 136 and another part of the fixing portion 132 which are cut. Figure 2
[0057] In addition, in order to further fix the pipe sleeve 130, refer to Figures 2-4 In some embodiments, the outer periphery of the fixing portion 132 has an annular groove 1323 extending along the direction around the axis of the pipe perforation 1321, i.e. the annular groove 1323 extends along the circumferential direction of the first pipe 122, i.e. the direction around the axis of the first pipe 122. It should be noted that the extension trajectory of the annular groove 1323 can be determined according to the shape of the outer periphery of the fixing portion 132, and is not limited to a circular ring. For the application of the annular groove 1323, in some embodiments, the annular groove 1323 can be used to place and position a binding structure, which is used to bind the pipe sleeve 130 and the heat exchange pipe 120, and the binding structure can be a binding belt; in other embodiments, based on the definition of the outer perforation 1421 in the foregoing embodiments, the annular groove 1323 can be used to cooperate with the edge of the hole of the outer perforation 1421 to fix the installation of the pipe sleeve 130, for example, the part of the pipe sleeve 130 provided with the annular groove 1323 can be made of an elastic material, and when the pipe sleeve 130 needs to be connected to the outer plate 142, the edge of the hole of the outer perforation 1421 can be inserted into the annular groove 1323 through the elastic deformation of the annular groove 1323 to form the installation.
[0058] In some actual use processes, there can be an air flow around the heat exchange unit 100, which can be generated by the heat exchange unit 100 and related equipment, or can be an air flow generated by the external environment. For this, based on the first direction X, the first pipe 122 and the second pipe 123 defined in the foregoing embodiments, referring to Figures 1-4, the projection of the sleeve 130 on the side of the water pan 160 in the first direction X covers the projection of the second pipe 123, so that the side of the sleeve 130 facing the water pan 160 can block the wind for the second pipe 123. Specifically, in some embodiments, the side of the water pan 160 for receiving liquid has a wind guide opening, and the heat exchange assembly 110 includes two heat exchange pieces, heat dissipation fins, and a wind blocking plate. The two heat exchange pieces are substantially rectangular bodies, and the heat exchange assembly 110 includes the heat exchange piece 111. When viewed in the horizontal direction, the two heat exchange pieces form an inverted "V" shape, and the wind blocking plate is arranged between the two heat exchange pieces (i.e., in the middle of the inverted "V"). According to the heat exchange assembly 110 arranged in the above manner, the heat exchange assembly 110 can communicate with the wind guide opening to form an air flow channel, so that the wind guide opening, the heat exchange assembly 110, the side of the sleeve 130 facing the water pan 160, and the second pipe 123 are arranged in sequence in the first direction X, and the air flow can pass through the heat exchange assembly 110 from the wind guide opening and be blocked by the sleeve 130 in the first direction X (or substantially in the first direction X). For the above wind blocking arrangement, when the heat exchange unit 100 includes the housing 140, in other words, in some embodiments, the cavity 141 formed by the housing 140 can include an air flow passage suitable for the flow of air. The heat exchange unit 100 has a first use state and a second use state. In the first use state, the water pan 160 is placed upward, and the sleeve 130 can receive liquid flowing along the outer periphery of the heat exchange pipeline 120 and guide the liquid into the water pan 160. In the second use state, in the extension direction of the air flow passage, the sleeve 130 is located on the side of the heat exchange pipeline 120 facing the air flow, and the sleeve 130 at least partially covers the second pipe 123. In addition, in some embodiments, the water pan 160 described in the foregoing embodiments can serve as a first water pan, and the heat exchange assembly 110 further includes a second water pan. The first water pan and the second water pan are oriented in different directions. Corresponding to the first use state and the second use state described above, in the first use state, the first water pan is placed upward, and in the second use state, the second water pan is placed upward. The angle turned between the first use state and the second use state can be determined according to requirements, for example, it can be 90°.
[0059] With reference to Figures 1-4 The second aspect of the embodiments of the utility model further provides an air handling unit 200, the air handling unit 200 includes the heat exchange unit 100 of any of the above embodiments and a supply air unit. The supply air unit is connected to the heat exchange unit 100, and the supply air unit can be used to drive the surrounding air flow. The supply air unit can be a fan. Thanks to the improvements of the heat exchange unit 100 in the above embodiments, the air handling unit 200 of the second aspect of the embodiments of the utility model has the same technical effects as the heat exchange unit 100 in the above embodiments.
[0060] The above are only preferred embodiments of the present application, and do not limit the patent range of the present application, and any equivalent structural transformation made by using the content of the present application specification and drawings, or direct / indirect application in other related technical fields are included in the patent protection range of the present application.
Claims
1. Heat exchange unit, characterized in that, The heat exchange unit comprises: a heat exchange assembly; a water pan located at one side of the heat exchange assembly along a first direction, the water pan being provided with a water receiving cavity with an opening facing the heat exchange assembly; a heat exchange pipeline connected to the heat exchange assembly; a pipe sleeve sleeved on the heat exchange pipeline, the pipe sleeve being capable of receiving liquid flowing along the outer periphery of the heat exchange pipeline and guiding the liquid into the water receiving cavity.
2. The heat exchange unit according to claim 1, wherein: the heat exchange unit further comprises a housing forming a containing cavity, the heat exchange assembly and the heat exchange pipeline being located in the containing cavity, the housing being provided with an outer connecting hole; the heat exchange pipeline comprises an outer connecting section adapted to be connected to an external pipeline, the outer connecting section being arranged through the outer connecting hole; the pipe sleeve is at least partially located in the containing cavity, and the pipe sleeve is sleeved on one end of the outer connecting section adapted to be connected to the external pipeline.
3. The heat exchange unit according to claim 2, wherein: the outer connecting section comprises a refrigerant inlet section and a refrigerant outlet section, and the pipe sleeve is sleeved on the refrigerant inlet section or the refrigerant outlet section.
4. The heat exchange unit according to claim 2, wherein: the pipe sleeve is located at one side of the containing cavity close to the outer connecting hole; or the pipe sleeve is at least partially arranged through the outer connecting hole.
5. The heat exchange unit according to claim 1, wherein: the pipe sleeve comprises a fixed portion and a guide portion connected to each other, the fixed portion is sleeved on the heat exchange pipeline, and the guide portion is located between the water pan and the heat exchange pipeline along the first direction, and the guide portion at least partially overlaps the water receiving cavity.
6. The heat exchange unit according to claim 5, wherein: the heat exchange pipeline comprises a first tube and a second tube connected to each other, an axis of the first tube is arranged crossing an axis of the second tube, the fixed portion is provided with an avoiding opening in the outer periphery, the fixed portion is sleeved on the first tube, and the second tube is arranged through the avoiding opening.
7. The heat exchange unit according to claim 6, wherein: the second tube is located at one side of the guide portion away from the water pan, and the guide portion covers the second tube as viewed along the first direction.
8. The heat exchange unit according to claim 1, wherein: the heat exchange unit further comprises a housing forming a containing cavity, the heat exchange assembly and the heat exchange pipeline being located in the containing cavity; the housing is provided with a first limiting hole, the pipe sleeve comprises a positioning protrusion arranged into the first limiting hole to limit the circumferential rotation of the pipe sleeve along the heat exchange pipeline; and / or the heat exchange unit further comprises a heat preservation portion located in the containing cavity and abutting against the housing, the heat preservation portion is provided with a second limiting hole, the pipe sleeve comprises a positioning protrusion arranged into the second limiting hole to limit the circumferential rotation of the pipe sleeve along the heat exchange pipeline.
9. The heat exchange unit according to claim 1, wherein: The pipe sleeve comprises a fixing portion and a limiting protrusion, the fixing portion is sleeved on the outer periphery of the heat exchange pipe, one side of the limiting protrusion is connected to the inner periphery of the fixing portion, the other side of the limiting protrusion protrudes towards the axis of the heat exchange pipe, and abuts against the outer periphery of the heat exchange pipe.
10. The heat exchange unit according to claim 1, wherein The pipe sleeve comprises a first lobe and a second lobe connected to each other, the first lobe and the second lobe are jointly sleeved on the outer periphery of the heat exchange pipe; Along the circumferential direction of the heat exchange pipe, one side of the first lobe is integrally connected to one side of the second lobe, the other side of the first lobe is spaced from the other side of the second lobe or abuts against the other side of the second lobe, the pipe sleeve can be elastically deformed along the radial direction of the heat exchange pipe after being subjected to an external force; or, along the circumferential direction of the heat exchange pipe, one side of the first lobe is hingedly connected to one side of the second lobe, the other side of the first lobe is spaced from the other side of the second lobe or abuts against the other side of the second lobe; or, the first lobe and the second lobe are detachably connected.
11. The heat exchange unit according to claim 1, wherein The pipe sleeve comprises a fixing portion, the fixing portion is sleeved on the outer periphery of the heat exchange pipe, the inner periphery of the fixing portion has a pipe hole, the heat exchange pipe is inserted through the pipe hole, and the outer periphery of the fixing portion has an annular groove extending along the direction of the axis surrounding the pipe hole.
12. An air handling unit characterized by, The heat exchange unit according to any one of claims 1-11; and The air supply unit is connected to the heat exchange unit.