Heat exchange device and air conditioner indoor unit with same

Abstract

The utility model provides a heat exchange device and an air conditioner indoor unit with the heat exchange device, the heat exchange device comprises a heat exchange tube assembly, the heat exchange tube assembly comprises a heat exchange tube and a plurality of fins, the heat exchange tube comprises an inner tube body and an outer tube body, the outer tube body is rotatably sleeved on the inner tube body, and the fins are arranged on the outer tube body. The multiple fins are arranged on the outer circumferential face of the outer pipe body, and the inner pipe body defines a channel for refrigerant media to pass through. According to the heat exchange device, only the outer pipe body needs to be rotated when the fins are cleaned, no relative movement exists between the inner pipe body and the pipeline connected with the inner pipe body, the sealing performance between the inner pipe body and the pipeline connected with the inner pipe body is guaranteed, and refrigerant medium leakage is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to a heat exchange device and an air conditioner indoor unit having the same. Background Art

[0002] With the continuous improvement of the quality of life, people pay more and more attention to the health and comfort of the living environment. In particular, they are very concerned about the air quality of the indoor environment, so more and more air treatment equipment has come into being. As an air treatment equipment with temperature and humidity control functions, air conditioners are basically the most widely used type of air treatment equipment. Among them, the heat exchanger is one of the important components of the indoor unit of the air conditioner. In the related art, the heat exchanger in the indoor unit of the air conditioner includes a plurality of heat exchange pipes, and a plurality of fins are provided on the heat exchange pipes. When in use, dust, oil, bacteria, mold and other pollutants will accumulate between the multiple fins of the heat exchange pipe. When cleaning and maintaining the heat exchanger, the maintenance personnel need to rotate the heat exchange pipe to clean the gap between the adjacent fins in the circumferential direction of the heat exchange pipe, but rotating the heat exchange pipe will reduce the sealing between the heat exchange pipe and the pipe connected to it, resulting in leakage of the refrigerant medium, resulting in the problem of reduced heat exchange performance of the heat exchanger. Utility Model Content

[0003] In view of the above problems, the present utility model is proposed to provide a heat exchange device and an air-conditioning indoor unit having the same that overcome the above problems or at least partially solve the above problems, and can solve the problem that the heat exchange pipe needs to be rotated when cleaning the heat exchange pipe, which reduces the sealing of the connection between the heat exchange pipe and other pipes, resulting in easy leakage of the refrigerant medium.

[0004] Specifically, the utility model provides a heat exchange device, which only needs to rotate the outer tube body when cleaning the fins, and there is no relative movement between the inner tube body and the pipeline connected thereto, thereby ensuring the sealing between the inner tube body and the pipeline connected thereto and avoiding leakage of the refrigerant medium.

[0005] The utility model also provides an air-conditioning indoor unit, which is provided with the above-mentioned heat exchange device.

[0006] The heat exchange device of the utility model comprises: a heat exchange tube assembly, wherein the heat exchange tube assembly comprises a heat exchange tube and a plurality of fins, wherein the heat exchange tube comprises an inner tube body and an outer tube body, wherein the outer tube body is rotatably sleeved on the inner tube body, wherein the plurality of fins are arranged on the outer peripheral surface of the outer tube body, and wherein the inner tube body defines a channel for passing a cold medium.

[0007] In some embodiments, each of the heat exchange tube assemblies further includes: a heat-conducting medium, the heat-conducting medium is filled in the fitting gap between the inner tube body and the outer tube body, and the heat-conducting medium is a fluid.

[0008] In some embodiments, the heat exchange device further includes: a first bracket and a second bracket, a plurality of the outer tube bodies are connected between the first bracket and the second bracket, each of the outer tube bodies includes a first end and a second end opposite to each other in the length direction of the heat exchange tube, the first end is rotatably connected to the first bracket, and the second end is rotatably connected to the second bracket.

[0009] In some embodiments, the first bracket has a plurality of first through holes, and one ends of the plurality of heat exchange tubes are matched in the plurality of first through holes one by one, wherein the first end of each outer tube body is rotatably matched in the first through hole, and one end of the inner tube body corresponding to the outer tube body passes through the first through hole; the second brackets have a plurality of second through holes, and the other ends of the plurality of heat exchange tubes are matched in the plurality of second through holes one by one, wherein the second end of each outer tube body is rotatably matched in the second through hole, and the other end of the inner tube body corresponding to the outer tube body passes through the second through hole.

[0010] In some embodiments, each first through hole includes a first section and a second section sequentially arranged in the length direction of the heat exchange tube, the first section is adjacent to the first end relative to the second section, the first section includes a first annular riser and a first annular tread, one end of the first annular riser passes through the outer surface of the first bracket, the other end of the first annular riser is connected to the outer edge of the first annular tread, one end of the second section is connected to the inner edge of the first annular tread, the other end of the second section passes through the outer surface of the first bracket, the end surface of the first end contacts the first annular tread, and the inner wall surface of the second section contacts the outer peripheral surface of the inner tube body corresponding to the second section;

[0011] Each second through hole includes a third section and a fourth section arranged in sequence in the length direction of the heat exchange tube, the third section is adjacent to the second end relative to the fourth section, the third section includes a second annular riser surface and a second annular tread surface, one end of the second annular riser surface passes through the outer surface of the second bracket, the other end of the second annular riser surface is connected to the outer edge of the second annular tread surface, one end of the fourth section is connected to the inner edge of the second annular tread surface, the other end of the fourth section passes through the outer surface of the second bracket, the end surface of the second end section contacts the second annular tread surface, and the inner wall surface of the second section contacts the partial outer circumferential surface of the inner tube body corresponding to the fourth section.

[0012] In some embodiments, the heat exchange device further comprises: a first sealing ring and a second sealing ring, the end surface of each first end portion is provided with a first annular sealing groove, the first sealing ring is arranged in the first annular sealing groove, and the first sealing ring abuts against the first annular tread, the inner wall surface of the second section is provided with a second annular sealing groove, the second sealing ring is arranged in the second annular sealing groove, and the second sealing ring abuts against the outer peripheral surface of the inner tube body corresponding to the second section;

[0013] A third sealing ring and a fourth sealing ring, each end face of the second end portion is provided with a third annular sealing groove, the third sealing ring is arranged in the third annular sealing groove, and the third sealing ring stops on the second annular tread, the inner wall surface of the fourth section is provided with a fourth annular sealing groove, the fourth sealing ring is arranged in the fourth annular sealing groove, and the fourth sealing ring stops on the outer circumferential surface of the inner tube body corresponding to the fourth section.

[0014] In some embodiments, there are multiple heat exchange tube assemblies, and adjacent heat exchange tube assemblies are arranged in parallel; multiple fins are spaced apart in the length direction of the heat exchange tube, gaps are formed between adjacent fins, and each of the fins can rotate around the axial direction of the heat exchange tube, and the multiple fins of each heat exchange tube assembly correspond one-to-one to the multiple gaps of the heat exchange tube assembly adjacent to the heat exchange tube assembly, and a portion of each fin is inserted into the corresponding gap.

[0015] In some embodiments, each of the heat exchange tube assemblies further includes: a first gear, the first gear being connected to the outer tube body to drive the outer tube body to rotate; a driver and a second gear, the driver being connected to the second gear, the driver being used to drive the second gear to rotate, the first gears of the multiple heat exchange tube assemblies being meshed in sequence, and the second gear being meshed with the first gear of one of the multiple heat exchange tube assemblies.

[0016] In some embodiments, the heat exchange device further includes: a liquid inlet pipeline, which is used to pass the cold medium flowing to the heat exchange tube; a liquid outlet pipeline, which is used to discharge the cold medium through the heat exchange tube; multiple heat exchange tubes are connected between the liquid inlet pipeline and the liquid outlet pipeline, wherein the inlet end of the inner tube body is connected to the liquid inlet pipeline, and the outlet end of the inner tube body is connected to the liquid outlet pipeline.

[0017] The utility model discloses an air-conditioning indoor unit, which is an embedded air-conditioning indoor unit, comprising: an outer shell, which comprises an air inlet and an air outlet; a fan, which is arranged in the outer shell and is used to promote the formation of an air flow that enters the air-conditioning indoor unit from the air inlet and is blown out from the air outlet; a heat exchange device, which is any of the heat exchange devices described above, and is arranged in the outer shell and located between the air inlet and the fan, and is used to exchange heat with the air flow that enters the air-conditioning indoor unit from the air inlet.

[0018] The heat exchange device of the utility model only needs to rotate the outer tube body to drive the multiple fins to rotate around the circumference of the heat exchange tube when cleaning the gaps between the multiple fins of the heat exchange tube assembly, so as to clean the annular gaps formed between the multiple fins. There is no relative rotation or movement between the inner tube body and other pipelines connected thereto, so as to avoid the reduction of the sealing between the inner tube body and the other pipelines, and prevent the leakage of the refrigerant medium between the inner tube body and the other pipelines, so as to ensure the heat exchange performance of the heat exchange device of the utility model.

[0019] Based on the detailed description of the specific embodiments of the present invention in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other purposes, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0021] Figure 1 is a schematic structural diagram of a heat exchange device according to an embodiment of the utility model;

[0022] Figure 2 yes Figure 1 A schematic partial structural diagram of the part in the middle;

[0023] Figure 3 is a schematic structural diagram of a heat exchange device according to an embodiment of the utility model;

[0024] Figure 4 yes Figure 3 A schematic partial structural diagram of the part B in the figure;

[0025] Figure 5 is a schematic structural diagram of a heat exchange device according to an embodiment of the utility model;

[0026] Figure 6 is a schematic structural diagram of a first bracket and a second bracket of an embodiment of the utility model;

[0027] Figure 7 It is a schematic structural diagram of an air conditioner indoor unit according to an embodiment of the utility model;

[0028] Reference numerals:

[0029] Heat exchange device 100;

[0030] Heat exchange tube assembly 1; heat exchange tube 11; inner tube body 111; inlet end 1111; outlet end 1112; outer tube body 112; first end 1121; second end 1122; fin 12; gap 121; first gear 13;

[0031] Liquid inlet pipeline 21; Liquid outlet pipeline 22;

[0032] Driver 31; Second gear 32;

[0033] first bracket 4; first through hole 41; first section 411; first annular riser 4111; first annular tread 4112; second section 412;

[0034] The second bracket 5; the second through hole 51; the third section 511; the second annular riser 5111; the second annular tread 5112; the fourth section 512;

[0035] A first sealing ring 61; a second sealing ring 62; a third sealing ring 63; a fourth sealing ring 64;

[0036] Housing 200; air inlet 201; air outlet 202;

[0037] Fan 300. DETAILED DESCRIPTION

[0038] Refer to the following Figures 1 to 7 To describe the heat exchange device of the embodiment of the utility model and the air-conditioning indoor unit having the same. In the description of this embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and other features may be further included.

[0039] Unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix", "couple" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present utility model according to the specific circumstances.

[0040] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. That is, in the description of this embodiment, the first feature being "above", "above", and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below", or "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0041] In the description of the present embodiment, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0042] The heat exchange device 100 of the present invention is described below with reference to the accompanying drawings.

[0043] like Figure 1-Figure 6 As shown, the heat exchange device 100 of the present invention includes a heat exchange tube assembly 1 .

[0044] The heat exchange tube assembly 1 includes a heat exchange tube 11 and a plurality of fins 12. The heat exchange tube 11 includes an inner tube body 111 and an outer tube body 112. The outer tube body 112 is sleeved on the inner tube body 111. The plurality of fins 12 are arranged on the outer circumferential surface of the outer tube body 112. The inner tube body 111 defines a channel for passing a cold medium.

[0045] The heat exchange device 100 of the present invention, when cleaning the gaps 121 between the multiple fins 12 of the heat exchange tube assembly 1, only needs to rotate the outer tube body 112 to drive the multiple fins 12 to rotate around the circumference of the heat exchange tube 11, so as to clean the annular gaps 121 formed between the multiple fins 12. There is no relative rotation or movement between the inner tube body 111 and other pipelines connected thereto, so as to avoid the reduction of the sealing between the inner tube body 111 and the other pipelines, and prevent the leakage of the refrigerant medium between the inner tube body 111 and the other pipelines, so as to ensure the heat exchange performance of the heat exchange device 100 of the present invention.

[0046] In order to make the present application easier to understand, the heat exchange device 100 of the embodiment of the present utility model is further described below by taking the case where the length direction of the heat exchange tube 11 is consistent with the front-to-back direction as an example.

[0047] like Figure 1-Figure 6 As shown, the heat exchange device 100 of the embodiment of the utility model comprises a heat exchange tube 11 assembly 1, a liquid inlet pipeline 21 and a liquid outlet pipeline 22. The liquid inlet pipeline 21 is used to pass the refrigerant flowing to the heat exchange tube 11, and the liquid outlet pipeline 22 is used to discharge the refrigerant through the heat exchange tube 11. The channel of each heat exchange tube 11 assembly 1 is connected with the liquid inlet pipeline 21 and the liquid outlet pipeline 22, so that the refrigerant flows into the channel through the liquid inlet pipeline 21 and the refrigerant is discharged through the liquid outlet pipeline 22.

[0048] There are multiple heat exchange tube assemblies 1, and the heat exchange tubes 11 of the multiple heat exchange tube assemblies 1 are all connected between the liquid inlet pipeline 21 and the liquid outlet pipeline 22. Each heat exchange tube 11 includes an inner tube body 111 and an outer tube body 112, and the outer tube body 112 is rotatably sleeved on the inner tube body 111. Multiple fins 12 are arranged on the outer circumferential surface of the outer tube body 112, and the inner tube body 111 defines a channel for passing the cold medium. The inlet end 1111 of the inner tube body 111 is connected to the liquid inlet pipeline 21, and the outlet end 1112 of the inner tube body 111 is connected to the liquid outlet pipeline 22.

[0049] In some embodiments, each heat exchange tube assembly 1 further includes a heat conducting medium (not shown in the figure), and the heat conducting medium is filled in the matching gap 121 between the inner tube body 111 and the outer tube body 112. The inner tube body 111 and the outer tube body 112 are filled with the heat conducting medium, thereby improving the heat exchange efficiency between the inner tube body 111 and the outer tube body 112.

[0050] Furthermore, the heat-conducting medium is a fluid, which not only improves the heat exchange efficiency between the inner tube body 111 and the outer tube body 112, but also can play a lubricating role between the inner tube body 111 and the outer tube body 112, so that the outer tube body 112 rotates more smoothly.

[0051] Preferably, the heat transfer medium is heat transfer oil, for example, alkylbenzene type heat transfer oil, or alkylnaphthalene type heat transfer oil, or other heat transfer oils.

[0052] In some embodiments, Figure 3-Figure 6 As shown, the heat exchange device 100 of the embodiment of the utility model further includes a first bracket 4 and a second bracket 5, and a plurality of outer tubes 112 are connected between the first bracket 4 and the second bracket 5. Each outer tube 112 includes a first end 1121 and a second end 1122 that are opposite to each other in the length direction of the heat exchange tube 11. The first end 1121 is rotatably connected to the first bracket 4, and the second end 1122 is rotatably connected to the second bracket 5. The first bracket 4 and the second bracket 5 provide support for the outer tube 112, and do not affect the rotation of the outer tube 112, thereby improving the structural stability of the heat exchange device 100 of the embodiment of the utility model.

[0053] Specifically, the first bracket 4 has a plurality of first through holes 41, and one end of the plurality of heat exchange tubes 11 is matched in the plurality of first through holes 41 in a one-to-one correspondence, wherein the first end 1121 of each outer tube body 112 is rotatably matched in the first through hole 41, and one end of the inner tube body 111 corresponding to the outer tube body 112 passes through the first through hole 41 and is connected to the liquid inlet pipeline 21. The plurality of second brackets 5 have a plurality of second through holes 51, and the other ends of the plurality of heat exchange tubes 11 are matched in the plurality of second through holes 51 in a one-to-one correspondence, wherein the second end 1122 of each outer tube body 112 is rotatably matched in the second through hole 51, and the other end of the inner tube body 111 corresponding to the outer tube body 112 passes through the second through hole 51 and is connected to the liquid inlet pipeline 21. The outer tube body 112 cooperates with the first through hole 41 and the second through hole 51, so that the outer tube body 112 can be rotatably connected to the first bracket 4 and the second bracket 5, and the two ends of the inner tube body 111 can pass through the first through hole 41 and the second through hole 51 respectively, so that the first bracket 4 and the second bracket 5 do not interfere with the connection between the inner tube body 111 and the liquid inlet pipeline 21 and the liquid outlet pipeline 22.

[0054] Furthermore, if Figure 5 and Figure 6As shown, each first through hole 41 includes a first section 411 and a second section 412 sequentially arranged in the length direction of the heat exchange tube 11, and the first section 411 is adjacent to the first end 1121 relative to the second section 412. The first section 411 includes a first annular riser 4111 and a first annular tread 4112, one end of the first annular riser 4111 passes through the outer surface of the first bracket 4, the other end of the first annular riser 4111 is connected to the outer edge of the first annular tread 4112, and one end of the second section 412 is connected to the inner edge of the first annular tread 4112. The other end of the second section 412 passes through the outer surface of the first bracket 4, the end surface of the first end 1121 contacts the first annular tread 4112, and the inner wall surface of the second section 412 contacts the outer peripheral surface of the inner tube body 111 corresponding to the second section 412.

[0055] Each second through hole 51 includes a third section 511 and a fourth section 512 sequentially arranged in the length direction of the heat exchange tube 11, and the third section 511 is adjacent to the second end 1122 relative to the fourth section 512. The third section 511 includes a second annular riser 5111 and a second annular tread 5112, one end of the second annular riser 5111 passes through the outer surface of the second bracket 5, and the other end of the second annular riser 5111 is connected to the outer edge of the second annular tread 5112. One end of the fourth section 512 is connected to the inner edge of the second annular tread 5112, and the other end of the fourth section 512 passes through the outer surface of the second bracket 5, the end surface of the second end 1122 contacts the second annular tread 5112, and the inner wall surface of the second section 412 contacts the outer peripheral surface of the inner tube body 111 corresponding to the fourth section 512.

[0056] The first annular tread 4112 and the second annular tread 5112 limit the outer tube body 112 to prevent the outer tube body 112 from moving in the front-to-back direction, ensuring that the outer tube body 112 does not make noise due to moving back and forth when the air-conditioning indoor unit is running, thereby improving the user experience.

[0057] In some embodiments, Figure 4-Figure 5 As shown, the heat exchange device 100 of the embodiment of the utility model further includes: a first sealing ring 61 , a second sealing ring 62 , a third sealing ring 63 and a fourth sealing ring 64 .

[0058] The end surface of each first end portion 1121 is provided with a first annular sealing groove, in which the first sealing ring 61 is disposed, and the first sealing ring 61 abuts against the first annular tread 4112. The inner wall surface of the second section 412 is provided with a second annular sealing groove, in which the second sealing ring 62 is disposed, and the second sealing ring 62 abuts against the outer peripheral surface of the inner tube body 111 corresponding to the second section 412. Thus, the heat-conducting medium filled between the inner tube body 111 and the outer tube body 112 is prevented from leaking from the first through hole 41 through the sealing of the first sealing ring 61 and the second sealing ring 62.

[0059] The end surface of each second end 1122 is provided with a third annular sealing groove, in which a third sealing ring 63 is disposed, and the third sealing ring 63 abuts against the second annular tread 5112. The inner wall surface of the fourth section 512 is provided with a fourth annular sealing groove, in which a fourth sealing ring 64 is disposed, and the fourth sealing ring 64 abuts against the outer peripheral surface of the inner tube body 111 corresponding to the fourth section 512. Thus, the heat-conducting medium filled between the inner tube body 111 and the outer tube body 112 is prevented from leaking from the second through hole 51 through the sealing of the third sealing ring 63 and the fourth sealing ring 64.

[0060] In some embodiments, Figure 1-Figure 3 As shown, there are multiple heat exchange tube assemblies 1, and adjacent heat exchange tube assemblies 1 are arranged in parallel. That is, two adjacent heat exchange tube assemblies 1 in the multiple heat exchange tube assemblies 1 are arranged in parallel; or, the heat exchange tube assemblies 1 are arranged in multiple groups, each heat exchange tube assembly 1 group includes multiple heat exchange tube assemblies 1, and multiple heat exchange tube assemblies 1 in the same heat exchange tube assembly 1 group are arranged in parallel; or, multiple heat exchange tube assemblies 1 are all arranged in parallel.

[0061] Each heat exchange tube assembly 1 includes a heat exchange tube 11 and a plurality of fins 12 . The heat exchange tube 11 has a channel for passing a refrigerant.

[0062] A plurality of fins 12 are provided on the heat exchange tube 11, and the plurality of fins 12 are spaced apart in the length direction of the heat exchange tube 11, and gaps 121 are formed between adjacent fins 12, and each fin 12 can rotate around the axial direction of the heat exchange tube 11, that is, the plurality of fins 12 on each heat exchange tube 11 can rotate relative to the fins 12 on the heat exchange tube 11 adjacent to the heat exchange tube 11. The plurality of fins 12 of each heat exchange tube assembly 1 corresponds one-to-one to the plurality of gaps 121 of the heat exchange tube assembly 1 adjacent to the heat exchange tube assembly 1, and a portion of each fin 12 is inserted into the corresponding gap 121.

[0063] When cleaning a heat exchange tube assembly 1, the multiple fins 12 of the heat exchange tube assembly 1 are rotated around the axial direction of the heat exchange tube 11 of the heat exchange tube assembly 1. When the adjacent fins 12 rotate, the dirt attached to the gap 121 between the adjacent fins 12 is driven to rotate around the axial direction of the heat exchange tube 11 of the heat exchange tube assembly 1. The dirt will touch the fin 12 of the adjacent heat exchange tube assembly 1 corresponding to the gap 121 and inserted into the gap 121, so that the fin 12 of the adjacent heat exchange tube assembly 1 scrapes the dirt from the gap 121, thereby achieving the purpose of cleaning the gap 121 between the multiple fins 12 in the heat exchange tube assembly 1.

[0064] The fin 12 of one of the adjacent heat exchange tube assemblies 1 is inserted into the gap 121 between the fins 12 of the other heat exchange tube assembly 1, and the fin 12 of the one heat exchange tube assembly 1 is rotated to remove the dirt in the gap 121. Not only is the operation simple, the cleaning effect is good, and the problem that the gap 121 between the multiple fins 12 on the heat exchange tube 11 is not easy to clean is solved, and the fin 12 of the adjacent heat exchange tube assembly 1 is used to clean the gap 121 between the fins 12 of itself, without the need to set up an additional cleaning structure for cleaning, thereby reducing structural redundancy.

[0065] In some embodiments, Figure 1-Figure 3 As shown, each heat exchange tube assembly 1 further includes: a first gear 13, the first gear 13 is connected to the outer tube body 112 to drive the outer tube body 112 to rotate. A plurality of heat exchange tube assemblies 1 are arranged in parallel, and the first gears 13 of the plurality of heat exchange tube assemblies 1 are meshed in sequence, wherein the first gear 13 of each heat exchange tube assembly 1 is meshed with the first gear 13 of the adjacent heat exchange tube assembly 1.

[0066] The first gear 13 of each heat exchange tube assembly 1 is meshed with the first gear 13 of the adjacent heat exchange tube assembly 1. When the first gear 13 of the heat exchange tube assembly 1 and one of the first gears 13 adjacent to the heat exchange tube assembly 1 rotate, the first gear 13 of the other can be driven to rotate, thereby causing the adjacent outer tube bodies 112 to rotate simultaneously and in opposite directions, so that the gaps 121 between the multiple fins 12 of each of the adjacent heat exchange tube assemblies 1 can be cleaned, thereby further improving the cleaning efficiency of the heat exchange device 100.

[0067] Furthermore, the heat exchange device 100 of the embodiment of the utility model further includes a driver 31 and a second gear 32. The driver 31 is used to drive the second gear 32 to rotate, and the first gears 13 of the plurality of heat exchange tube assemblies 1 are meshed in sequence, and the second gear 32 is meshed with the first gear 13 of one of the plurality of heat exchange tube assemblies 1. Thus, the second gear 32 is driven to rotate by the driver 31, and the second gear 32 drives the first gear 13 matched therewith to rotate, and sequentially drives the first gears 13 of the other plurality of heat exchange tube assemblies 1, so that the plurality of outer tube bodies 112 rotate, which not only greatly improves the cleaning efficiency of the heat exchange device 100, but also facilitates operation.

[0068] Optionally, the driver 31 is an electric motor.

[0069] The air conditioner indoor unit of the embodiment of the utility model comprises: a housing 200, a fan 300 and a heat exchange device 100, wherein the housing 200 comprises an air inlet 201 and an air outlet 202, which are arranged in the housing 200 and are used to promote the formation of an air flow entering the air conditioner indoor unit from the air inlet 201 and blowing out from the air outlet 202. The heat exchange device 100 is the heat exchange device 100 of any of the above embodiments, and the heat exchange device 100 is arranged in the housing 200 and is located between the air inlet 201 and the fan 300, and is used to perform heat exchange with the air flow entering the air conditioner indoor unit from the air inlet 201.

[0070] The air conditioner indoor unit of this embodiment is an embedded air conditioner indoor unit, that is, the air conditioner indoor unit is embedded in a cabinet or a wall in the room, for example Figure 1 As shown, the air conditioner indoor unit is embedded in the air duct so that the air conditioner indoor unit is hidden in appearance, making the home layout more beautiful and achieving the purpose of improving the user experience.

[0071] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the contents disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. A heat exchange device, characterized in that: It comprises: a heat exchange tube assembly, wherein the heat exchange tube assembly comprises a heat exchange tube and a plurality of fins, wherein the heat exchange tube comprises an inner tube body and an outer tube body, wherein the outer tube body is rotatably mounted on the inner tube body, wherein the plurality of fins are arranged on the outer peripheral surface of the outer tube body, and wherein the inner tube body defines a channel for passing a cold medium.

2. The heat exchange device according to claim 1, characterized in that: Each of the heat exchange tube assemblies further includes: a heat-conducting medium, which is filled in the matching gap between the inner tube body and the outer tube body, and the heat-conducting medium is a fluid.

3. The heat exchange device according to claim 1, characterized in that: Further including: A first bracket and a second bracket, a plurality of outer tube bodies are connected between the first bracket and the second bracket, each of the outer tube bodies includes a first end and a second end opposite to each other in the length direction of the heat exchange tube, the first end is rotatably connected to the first bracket, and the second end is rotatably connected to the second bracket.

4. The heat exchange device according to claim 3, characterized in that: The first bracket has a plurality of first through holes, one end of the plurality of heat exchange tubes is matched in the plurality of first through holes one by one, wherein the first end of each outer tube body is rotatably matched in the first through hole, and one end of the inner tube body corresponding to the outer tube body passes through the first through hole; The plurality of second brackets have a plurality of second through holes, and the other ends of the plurality of heat exchange tubes are matched in the plurality of second through holes one by one, wherein the second end of each outer tube body is rotatably matched in the second through hole, and the other end of the inner tube body corresponding to the outer tube body passes through the second through hole.

5. The heat exchange device according to claim 4, characterized in that: Each first through hole includes a first section and a second section sequentially arranged in the length direction of the heat exchange tube, the first section is adjacent to the first end relative to the second section, the first section includes a first annular riser and a first annular tread, one end of the first annular riser passes through the outer surface of the first bracket, the other end of the first annular riser is connected to the outer edge of the first annular tread, one end of the second section is connected to the inner edge of the first annular tread, the other end of the second section passes through the outer surface of the first bracket, the end surface of the first end contacts the first annular tread, and the inner wall surface of the second section contacts the outer peripheral surface of the inner tube body corresponding to the second section; Each second through hole includes a third section and a fourth section arranged in sequence in the length direction of the heat exchange tube, the third section is adjacent to the second end relative to the fourth section, the third section includes a second annular riser surface and a second annular tread surface, one end of the second annular riser surface passes through the outer surface of the second bracket, the other end of the second annular riser surface is connected to the outer edge of the second annular tread surface, one end of the fourth section is connected to the inner edge of the second annular tread surface, the other end of the fourth section passes through the outer surface of the second bracket, the end surface of the second end section contacts the second annular tread surface, and the inner wall surface of the second section contacts the partial outer circumferential surface of the inner tube body corresponding to the fourth section.

6. The heat exchange device according to claim 5, characterized in that: Further including: A first sealing ring and a second sealing ring, wherein the end surface of each of the first end portions is provided with a first annular sealing groove, the first sealing ring is arranged in the first annular sealing groove, and the first sealing ring abuts against the first annular tread, and the inner wall surface of the second section is provided with a second annular sealing groove, the second sealing ring is arranged in the second annular sealing groove, and the second sealing ring abuts against the outer peripheral surface of the inner tube body corresponding to the second section; A third sealing ring and a fourth sealing ring, each end face of the second end portion is provided with a third annular sealing groove, the third sealing ring is arranged in the third annular sealing groove, and the third sealing ring stops on the second annular tread, the inner wall surface of the fourth section is provided with a fourth annular sealing groove, the fourth sealing ring is arranged in the fourth annular sealing groove, and the fourth sealing ring stops on the outer circumferential surface of the inner tube body corresponding to the fourth section.

7. The heat exchange device according to claim 1, characterized in that: There are multiple heat exchange tube assemblies, and adjacent heat exchange tube assemblies are arranged in parallel; The plurality of fins are spaced apart in the length direction of the heat exchange tube, gaps are formed between adjacent fins, and each of the fins can rotate around the axial direction of the heat exchange tube. The plurality of fins of each heat exchange tube assembly corresponds one-to-one to the plurality of gaps of the heat exchange tube assembly adjacent to the heat exchange tube assembly, and a portion of each fin is inserted into the corresponding gap.

8. The heat exchange device according to claim 7, characterized in that: Each of the heat exchange tube assemblies further comprises: A first gear connected to the outer tube body to drive the outer tube body to rotate; A driver and a second gear, wherein the driver is connected to the second gear, and the driver is used to drive the second gear to rotate, the first gears of the plurality of heat exchange tube assemblies are meshed in sequence, and the second gear is meshed with the first gear of one of the plurality of heat exchange tube assemblies.

9. The heat exchange device according to claim 1, characterized in that: Further including: A liquid inlet pipeline, the liquid inlet pipeline is used to pass the refrigerant medium flowing to the heat exchange tube; A liquid outlet pipeline, the liquid outlet pipeline is used for discharging the refrigerant medium through the heat exchange tube; The plurality of heat exchange tubes are all connected between the liquid inlet pipeline and the liquid outlet pipeline, wherein the inlet end of the inner tube body is communicated with the liquid inlet pipeline, and the outlet end of the inner tube body is communicated with the liquid outlet pipeline.

10. An air conditioner indoor unit, characterized in that: include: A housing, the housing comprising an air inlet and an air outlet; A fan, disposed in the housing, for causing an air flow to enter the air conditioner indoor unit from the air inlet and to be blown out from the air outlet; A heat exchange device, wherein the heat exchange device is the heat exchange device described in any one of claims 1 to 9, wherein the heat exchange device is arranged in the housing and located between the air inlet and the fan, and is used to exchange heat with the airflow entering the air conditioner indoor unit from the air inlet, and the air conditioner indoor unit is an embedded air conditioner indoor unit.

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