Micro-channel heat exchanger
By using a comb-like structure to position and guide the flat tubes in a microchannel heat exchanger, the problem of cumbersome operation during the assembly of flat tubes and fins is solved, realizing the integrated assembly of flat tubes and improving production efficiency and product consistency.
Patent Information
- Application Number
- CN202423106671.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2034-12-17
AI Technical Summary
Existing microchannel heat exchangers are cumbersome and difficult to assemble in terms of flat tubes and fins, resulting in low production efficiency, requiring multiple people to work together, and making it difficult to control product consistency and quality.
A comb-tooth structure is used to position and guide the flat tube. The movement of the comb teeth enables the integrated assembly of the flat tube, simplifying the operation process and improving assembly efficiency and product consistency.
It enables rapid and uniform installation of flat tubes, improves the production efficiency and product quality consistency of microchannel heat exchangers, and reduces the intensity of manual labor.
Smart Images
Figure CN223826829U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of microchannel technology, and in particular to a microchannel heat exchanger. Background Technology
[0002] The microchannel consists of manifolds, flat tubes, fins, etc. During the production process, the flat tubes need to be arranged one by one, with a fixed gap between each pair, and then the manifolds at both ends are installed. Before the manifolds are installed, positioning strips and positioning rods are inserted to ensure that each flat tube is inserted into the corresponding notch of the manifold. Finally, the two manifolds are evenly squeezed by external force to ensure the insertion depth of the flat tubes and to evenly press against the flat tubes inserted into the manifolds, thus ensuring that the insertion depth of each flat tube into the manifold is consistent.
[0003] The entire operation is cumbersome, difficult, and inefficient, requiring 12 people to operate and ensure its success. Furthermore, the production process is prone to defects, product consistency is poor, and quality is difficult to control.
[0004] Therefore, a microchannel heat exchanger that can achieve integrated assembly of flat tubes and fins is needed. Utility Model Content
[0005] To overcome the problems existing in related technologies, the purpose of this utility model is to provide a microchannel heat exchanger that can achieve integrated assembly of flat tubes and fins.
[0006] A microchannel heat exchanger includes a first manifold and a second manifold arranged opposite to each other. The inner sides of both the first manifold and the second manifold are provided with multiple comb teeth, which are arranged at intervals. One side of each comb tooth is provided with an inclined surface, and a flat tube is placed on the inclined surface of each comb tooth. The two ends of the flat tube pass through the corresponding inclined surface and are inserted into the first manifold or the second manifold.
[0007] In a preferred embodiment of this utility model, a first mounting groove is provided on the side of the first manifold near the second manifold, and the first end of the flat tube is inserted into the first mounting groove; a second mounting groove is provided on the side of the second manifold near the first manifold, and the second end of the flat tube is inserted into the second mounting groove.
[0008] In a preferred embodiment of this invention, fins are installed between adjacent flat tubes.
[0009] In a preferred embodiment of this utility model, the first manifold is connected to both ends with a first end cap, which is used to seal the first manifold; the second manifold is connected to both ends with a second end cap, which is used to seal the second manifold.
[0010] In a preferred embodiment of this invention, the microchannel heat exchanger further includes a partition, which is vertically inserted into the first manifold and the second manifold, and is used to guide the refrigerant into the flat tube.
[0011] In a preferred embodiment of this utility model, N flat tubes are connected between the first manifold and the second manifold, and the N flat tubes are parallel to each other; the first end of the N flat tubes is connected to the first manifold, and the second end of the N flat tubes is connected to the second manifold.
[0012] In a preferred embodiment of this invention, the microchannel heat exchanger further includes a bending structure, which is connected to or integrally formed with the outermost flat tube.
[0013] In a preferred embodiment of this invention, the first manifold has a branch inlet and a branch outlet on the side away from the second manifold, and the refrigerant flows in from the branch inlet and flows out from the branch outlet.
[0014] In a preferred embodiment of this invention, the comb teeth include a slider and a support portion, the support portion being inserted into the slider, and the inclined surface being provided at the end of the support portion away from the slider.
[0015] In a preferred embodiment of this invention, the height difference of the inclined plane is equal to the thickness of the flat tube.
[0016] The beneficial effects of this utility model are as follows:
[0017] This invention provides a microchannel heat exchanger, including a first manifold and a second manifold arranged opposite each other. Both the first and second manifolds have multiple comb teeth on their inner sides, arranged at intervals. One side of each comb tooth has an inclined surface, and a flat tube is placed on the inclined surface of each comb tooth. The two ends of the flat tube pass through the corresponding inclined surface and are inserted into the first or second manifold. The multiple comb teeth position the flat tubes, placing them all at once on the inclined surfaces. Then, the flat tubes are pulled, changing their horizontal arrangement to a vertical arrangement. The comb teeth are pushed, causing the flat tubes to move closer together, shortening the distance between adjacent flat tubes. This continues until the distance between adjacent flat tubes is shortened to the required spacing for flat tube assembly. Finally, the first end of each flat tube is inserted into the first manifold, and the second end is inserted into the second manifold. In the above process, multiple comb teeth are used to place and arrange multiple flat tubes at once, realizing the integrated assembly of flat tubes. This eliminates the need to put flat tubes in one by one, optimizes the operation process, improves the efficiency of assembling microchannel heat exchangers, ensures the consistency of multiple microchannel heat exchangers, and improves product quality. Attached Figure Description
[0018] Figure 1 This is a top view of the microchannel heat exchanger of this utility model;
[0019] Figure 2 This is a front view of the microchannel heat exchanger of this utility model;
[0020] Figure 3 This is a schematic diagram of the comb teeth of this utility model;
[0021] Figure 4 This is a front view of the comb teeth of this utility model;
[0022] Figure 5 This is a side view of the comb teeth of this utility model;
[0023] Figure 6 This is a top view of the comb teeth of this utility model.
[0024] Reference numerals in the attached drawings: 1. First manifold; 2. Second manifold; 3. Comb teeth; 4. Inclined surface; 5. Flat tube; 6. First mounting groove; 7. Second mounting groove; 8. Fin; 9. First end cap; 10. Second end cap; 11. Partition; 12. Bending structure; 13. Branch pipe inlet; 14. Branch pipe outlet; 15. Support; 16. Slider. Detailed Implementation
[0025] Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.
[0026] Example 1
[0027] like Figures 1-6 As shown, this embodiment provides a microchannel heat exchanger, including a first manifold 1 and a second manifold 2 arranged opposite to each other. The inner sides of the first manifold 1 and the second manifold 2 are provided with multiple comb teeth 3, which are arranged at intervals. One side of each comb tooth 3 is provided with an inclined surface 4, and a flat tube 5 is placed on the inclined surface 4 of each comb tooth 3. The two ends of the flat tube 5 pass through the corresponding inclined surface 4 and are inserted into the first manifold 1 or the second manifold 2.
[0028] The comb teeth 3 include a first row of comb teeth 3 and a second row of comb teeth 3 arranged opposite to each other. The first row of comb teeth 3 and the second row of comb teeth 3 are aligned one-to-one, and the spacing between each pair of comb teeth 3 is equal. The first row of comb teeth 3 is located inside the first manifold 1, and the second row of comb teeth 3 is located inside the second manifold 2. Preferably, the two rows of comb teeth 3 can also be arranged on a binding platform, with the first row of comb teeth 3 located close to the first manifold 1 and the second row of comb teeth 3 located close to the second manifold 2.
[0029] The multiple comb teeth 3 are movable, allowing multiple comb teeth 3 to move simultaneously. As the comb teeth 3 move, they can move closer to or further apart, increasing or decreasing the distance between two comb teeth 3. The movement of the comb teeth 3 also drives the flat tubes 5 to move, causing the distance between the flat tubes 5 to increase or decrease as the comb teeth 3 move.
[0030] The initial spacing of the comb teeth 3 is greater than the target spacing. The flat tubes 5 are placed horizontally on the inclined surfaces 4 of the comb teeth 3, with each inclined surface 4 corresponding to a flat tube 5. Since the spacing between the comb teeth 3 is equal, multiple flat tubes 5 can be evenly arranged on the binding table. Pulling multiple flat tubes 5 at once converts them from a horizontal to a vertical arrangement, achieving one-click installation. At this point, by pushing the comb teeth 3, the spacing between adjacent comb teeth 3 gradually decreases to the target spacing. The comb teeth 3 move the flat tubes 5 closer together, shortening the spacing between adjacent flat tubes 5 to the required assembly size, thus achieving automatic placement of multiple flat tubes 5.
[0031] This embodiment of a microchannel heat exchanger includes a first manifold 1 and a second manifold 2 arranged opposite to each other. Both the first manifold 1 and the second manifold 2 have multiple comb teeth 3 arranged at intervals on their inner sides. One side of each comb tooth 3 has an inclined surface 4, and a flat tube 5 is placed on the inclined surface 4 of each comb tooth 3. The two ends of the flat tube 5 pass through the corresponding inclined surface 4 and are inserted into the first manifold 1 or the second manifold 2. The multiple comb teeth 3 are used to position the flat tubes 5, placing them all at once on the inclined surface 4. Then, the flat tubes 5 are pulled, changing their horizontal arrangement to a vertical arrangement. The comb teeth 3 are pushed, causing the flat tubes 5 to move closer together, thus shortening the distance between adjacent flat tubes 5. This continues until the distance between adjacent flat tubes 5 is shortened to the required spacing for assembly. Then, the first ends of the multiple flat tubes 5 are inserted into the first manifold 1, and the second ends of the multiple flat tubes 5 are inserted into the second manifold 2. In the above process, the multiple flat tubes 5 are placed and arranged at one time using multiple comb teeth 3, realizing the integrated assembly of the flat tubes 5. It is not necessary to put the flat tubes 5 in one by one, which optimizes the operation process, improves the efficiency of assembling microchannel heat exchangers, ensures the consistency of multiple microchannel heat exchangers, and improves product quality.
[0032] Example 2
[0033] like Figures 1-6 As shown, this embodiment provides a microchannel heat exchanger, including a first manifold 1 and a second manifold 2 arranged opposite to each other. The inner sides of the first manifold 1 and the second manifold 2 are provided with multiple comb teeth 3, which are arranged at intervals. One side of each comb tooth 3 is provided with an inclined surface 4, and a flat tube 5 is placed on the inclined surface 4 of each comb tooth 3. The two ends of the flat tube 5 pass through the corresponding inclined surface 4 and are inserted into the first manifold 1 or the second manifold 2.
[0034] The first manifold 1 has a first mounting groove 6 on the side near the second manifold 2, and the first end of the flat tube 5 is inserted into the first mounting groove 6; the second manifold 2 has a second mounting groove 7 on the side near the first manifold 1, and the second end of the flat tube 5 is inserted into the second mounting groove 7.
[0035] The first manifold 1 has a first end cap 9 connected to both ends, which is used to seal the first manifold 1. The second manifold 2 has a second end cap 10 connected to both ends, which is used to seal the second manifold 2.
[0036] The first manifold 1 has multiple first mounting slots 6 on one side, arranged in a row. The number of first mounting slots 6 is the same as the number of flat tubes 5, allowing the first ends of multiple flat tubes 5 to be inserted into multiple first mounting slots 6 simultaneously. The second manifold 2 has multiple second mounting slots 7 on the side near the first manifold 1, arranged in a row. The number of second mounting slots 7 is the same as the number of flat tubes 5, allowing the second ends of multiple flat tubes 5 to be inserted into multiple second mounting slots 7 simultaneously.
[0037] After inserting the first manifold 1 and the second manifold 2 into the two ends of multiple flat tubes 5 respectively, the two ends of the multiple flat tubes 5 are connected to the first manifold 1 and the second manifold 2 respectively. Two first end caps 9 are provided, sealing both ends of the first manifold 1 respectively. Two second end caps 10 are provided, sealing both ends of the second manifold 2 respectively, making the interiors of the first manifold 1 and the second manifold 2 sealed. The first manifold 1 and the second manifold 2 also have the function of changing the flow direction of the refrigerant, causing the refrigerant to flow along a set path. After the refrigerant flows into the first manifold 1, it flows through the multiple flat tubes 5 into the second manifold 2, then flows back into the first manifold 1, then through the multiple flat tubes 5 into the second manifold 2, then flows back into the first manifold 1, repeating the above process, until finally the refrigerant flows out from the first manifold 1.
[0038] A first positioning stage assembly is disposed near the first manifold 1. The first positioning stage assembly is used to push the first manifold 1 toward the first end of the flat tube 5, so that the first end of the flat tube 5 is inserted into the first mounting groove 6. A second positioning stage assembly is disposed near the second manifold 2. The second positioning stage assembly is used to push the second manifold 2 toward the second end of the flat tube 5, so that the second end of the flat tube 5 is inserted into the second mounting groove 7. The first positioning stage assembly and the second positioning stage assembly work simultaneously, so that the first manifold 1 and the second manifold 2 simultaneously approach the two ends of the flat tube 5, so that the two ends of the flat tube 5 are simultaneously inserted into the first manifold 1 and the second manifold 2.
[0039] In this embodiment, the first manifold 1 has a first mounting groove 6 on the side near the second manifold 2, and the first end of the flat tube 5 is inserted into the first mounting groove 6. The second manifold 2 has a second mounting groove 7 on the side near the first manifold 1, and the second end of the flat tube 5 is inserted into the second mounting groove 7. The first manifold 1 is connected to both ends with a first end cap 9, which seals the first manifold 1. The second manifold 2 is connected to both ends with a second end cap 10, which seals the second manifold 2. By installing the first sealing cap at both ends of the first manifold 1 and the second sealing cap at both ends of the second manifold 2, the interiors of the first manifold 1 and the second manifold 2 are sealed. Both the first manifold 1 and the second manifold 2 can guide the refrigerant, allowing it to flow along a predetermined path. After the refrigerant flows into the first manifold 1, it passes through multiple flat tubes 5 into the second manifold 2. Then, the refrigerant flows back into the first manifold 1, then through the same multiple flat tubes 5 into the second manifold 2, and so on, repeating the process until finally, the refrigerant flows out of the first manifold 1. A first positioning stage assembly pushes the first manifold 1, and a second positioning stage assembly pushes the second manifold 2, ensuring that both ends of the flat tubes 5 are inserted into the first and second manifolds 1 and 2 respectively. This not only guarantees the depth of insertion of both ends of the flat tubes 5 into the first and second manifolds 2, but also improves the efficiency of assembling the flat tubes 5 and reduces the labor intensity of employees.
[0040] Example 3
[0041] like Figures 1-6 As shown, this embodiment provides a microchannel heat exchanger, including a first manifold 1 and a second manifold 2 arranged opposite to each other. The inner sides of the first manifold 1 and the second manifold 2 are provided with multiple comb teeth 3, which are arranged at intervals. One side of each comb tooth 3 is provided with an inclined surface 4, and a flat tube 5 is placed on the inclined surface 4 of each comb tooth 3. The two ends of the flat tube 5 pass through the corresponding inclined surface 4 and are inserted into the first manifold 1 or the second manifold 2.
[0042] Fins 8 are installed between adjacent flat tubes 5. The fins 8 are composed of multiple serrated structures with triangular cross-sections. The multiple serrated structures are closely arranged, so that the fins 8 have a large contact area with the flat tubes 5 on both sides, thereby improving the heat dissipation efficiency of the fins 8 on the flat tubes 5.
[0043] N flat tubes 5 are connected between the first manifold 1 and the second manifold 2, and the N flat tubes 5 are parallel to each other; the first end of the N flat tubes 5 is connected to the first manifold 1, and the second end of the N flat tubes 5 is connected to the second manifold 2.
[0044] The microchannel heat exchanger also includes a bending structure 12, which is connected to or integrally formed with the outermost flat tube 5.
[0045] The comb teeth 3 include a slider 16 and a support part 15. The support part 15 is inserted into the slider 16. The end of the support part 15 away from the slider 16 is provided with the inclined surface 4. The height difference of the inclined surface 4 is equal to the thickness of the flat tube 5.
[0046] The comb teeth 3 are L-shaped and include a slider 16 and a support portion 15, with the support portion 15 inserted into the slider 16. The end of the support portion 15 away from the slider 16 is inclined towards the end closer to the slider 16 to form an inclined surface 4. The height difference of the inclined surface 4 is equal to the thickness of the flat tube 5, and each flat tube 5 is placed on the inclined surface 4 of the corresponding comb tooth 3.
[0047] A fin 8 is installed between two adjacent flat tubes 5. The width of the fin 8 is equal to the distance between the two adjacent flat tubes 5, and the height difference between two adjacent fins 8 does not exceed 0.5 mm (mm refers to millimeters). When the refrigerant flows through the flat tubes 5, the heat of the refrigerant is transferred to the fins 8 through the flat tubes 5 because the fins 8 are in close contact with the flat tubes 5. That is, each fin 8 plays a heat dissipation role for the flat tubes 5 on both sides.
[0048] The first end of each of the N flat tubes 5 is inserted into the first mounting slot 6 of the first manifold 1, and the second end is inserted into the second mounting slot 7 of the second manifold 2. Refrigerant flows from the first manifold 1 into P1 flat tubes 5, and then into the second manifold 2. After flowing a certain distance in the second manifold 2, the refrigerant flows from the second manifold 2 into P2 flat tubes 5, and then back into the first manifold 1. N≥2, P1<N, P1=P2.
[0049] A bending structure 12 is provided on both sides of each of the N flat tubes 5, that is, a bending structure 12 is provided on the side of the two outermost flat tubes 5 away from the central flat tube 5. The bending structure 12 serves a protective function, protecting the inner flat tubes 5 and fins 8 from the compression of the external structure, and preventing the flat tubes 5 and fins 8 from colliding with the external structure.
[0050] In this embodiment, fins 8 are installed between adjacent flat tubes 5. The microchannel heat exchanger also includes a bending structure 12, which is connected to or integrally formed with the outermost flat tube 5. The bending structure 12 serves a protective function, protecting the inner flat tubes 5 and fins 8 from compression by external structures and preventing collisions between the flat tubes 5 and fins 8 and external structures. The comb teeth 3 include a slider 16 and a support portion 15. The support portion 15 is inserted into the slider 16, and the end of the support portion 15 away from the slider 16 is provided with an inclined surface 4. The height difference of the inclined surface 4 is equal to the thickness of the flat tube 5. The end of the support portion 15 away from the slider 16 is inclined towards the end closer to the slider 16 to form the inclined surface 4. The height difference of the inclined surface 4 is equal to the thickness of the flat tube 5, allowing each flat tube 5 to be placed on the inclined surface 4 of the corresponding comb tooth 3.
[0051] Example 4
[0052] like Figures 1-6 As shown, this embodiment provides a microchannel heat exchanger, including a first manifold 1 and a second manifold 2 arranged opposite to each other. The inner sides of the first manifold 1 and the second manifold 2 are provided with multiple comb teeth 3, which are arranged at intervals. One side of each comb tooth 3 is provided with an inclined surface 4, and a flat tube 5 is placed on the inclined surface 4 of each comb tooth 3. The two ends of the flat tube 5 pass through the corresponding inclined surface 4 and are inserted into the first manifold 1 or the second manifold 2.
[0053] The microchannel heat exchanger also includes a baffle 11, which is vertically inserted into the second manifold 2 and is used to guide the refrigerant into the flat tube 5.
[0054] N flat tubes 5 are connected between the first manifold 1 and the second manifold 2, and the N flat tubes 5 are parallel to each other; the first end of the N flat tubes 5 is connected to the first manifold 1, and the second end of the N flat tubes 5 is connected to the second manifold 2.
[0055] The first manifold 1 has a branch inlet 13 and a branch outlet 14 on the side away from the second manifold 2. The refrigerant flows in from the branch inlet 13 and flows out from the branch outlet 14.
[0056] The partition 11 is vertically inserted into the first manifold 1 and the second manifold 2. The partition 11 serves to both block the refrigerant and change its flow direction. Specifically, when the refrigerant in the first manifold 1 encounters the partition 11, it stops flowing along the first manifold 1 and instead flows into the flat tube 5, and then from the flat tube 5 into the second manifold 2. The flat tube 5 is hollow, allowing refrigerant to flow through. Similarly, when the refrigerant in the second manifold 2 encounters the partition 11, it stops flowing along the second manifold 2 and instead flows into the flat tube 5, and then from the flat tube 5 into the first manifold 1.
[0057] Fins 8 are provided between adjacent flat tubes 5, and the fins 8 have the function of dissipating heat from the refrigerant in the flat tubes 5. The flow direction of the refrigerant is changed by using a partition 11, so that the refrigerant flows into the flat tubes 5 from the first manifold 1 or the second manifold 2, so that the fins 8 can carry away some of the heat of the refrigerant in the flat tubes 5.
[0058] The shape of the partition 11 can be an L-shaped flow guiding structure or other shapes, which are not limited here.
[0059] N flat tubes 5 are spaced apart between the first manifold 1 and the second manifold 2, and the N flat tubes 5 are parallel to each other. The first manifold 1 and the second manifold 2 extend in a first direction, and the flat tubes 5 extend in a second direction. There is a certain angle between the first direction and the second direction. In this embodiment, the first direction is perpendicular to the second direction.
[0060] The end face of the flat tube 5 has multiple small holes, the cross-sectional shape of which can be circular or rectangular, and is not limited here. These multiple holes correspond to multiple flow channels. The refrigerant flows into these channels from the holes on the end face of the flat tube 5, thereby increasing the contact area between the refrigerant and the inner wall of the flat tube 5, and improving heat dissipation. Furthermore, dividing a relatively wide flow channel into multiple channels prevents energy loss caused by turbulence in a single wide channel.
[0061] Based on the lengths of the first manifold 1 and the second manifold 2, and the number N of flat tubes 5 required for heat dissipation, N≥2.
[0062] Branch pipe inlet 13 and branch pipe outlet 14 are parallel to each other. Branch pipe outlet 14 is connected to a portion of the flat pipe 5. Branch pipe inlet 13 is used for refrigerant to flow into the first manifold 1, and branch pipe outlet 14 is used for refrigerant to flow out of the first manifold 1. Refrigerant flows into the first manifold 1 from branch pipe inlet 13, and then flows into the second manifold 2 through multiple flat pipes 5. Refrigerant flows a distance in the second manifold 2, and then flows into the first manifold 1 through multiple flat pipes 5. Refrigerant flows a distance in the first manifold 1 towards the branch pipe outlet 14, and then flows into the second manifold 2 through multiple flat pipes 5. The above process is repeated until refrigerant flows into the branch pipe outlet 14 from multiple flat pipes 5.
[0063] The microchannel heat exchanger in this embodiment also includes a partition 11, which is vertically inserted into the first manifold 1 and the second manifold 2. The partition 11 guides the refrigerant into the flat tube 5. The first manifold 1 has a branch inlet 13 and a branch outlet 14 on the side away from the second manifold 2. The refrigerant flows in from the branch inlet 13 and out from the branch outlet 14. The partition 11, vertically inserted into the first manifold 1 and the second manifold 2, simultaneously blocks the refrigerant and changes its flow direction. Specifically, when the refrigerant in the first manifold 1 encounters the partition 11 during its flow, it stops flowing along the first manifold 1 and instead flows into the flat tube 5, and then from the flat tube 5 into the second manifold 2. The flat tube 5 is hollow, allowing the refrigerant to flow through. Similarly, when the refrigerant in the second manifold 2 encounters the partition 11 during its flow, it stops flowing along the second manifold 2 and instead flows into the flat tube 5, and then from the flat tube 5 into the first manifold 1.
[0064] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps set forth in these embodiments do not limit the scope of this application. Any specific values in all examples shown and discussed herein should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.
[0065] It should be understood that spatial relative terms are intended to encompass different orientations of a device in use or operation, in addition to the orientation described in the figures. For example, if a device in the figures is inverted, a device described as "above" or "on top of" other devices or structures will subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0066] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.
[0067] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A microchannel heat exchanger, characterized in that, It includes a first collector pipe and a second collector pipe arranged opposite to each other. The inner side of the first collector pipe and the second collector pipe is provided with multiple comb teeth, which are arranged at intervals. One side of each comb tooth is provided with an inclined surface, and a flat tube is placed on the inclined surface of each comb tooth. The two ends of the flat tube pass through the corresponding inclined surface and are inserted into the first collector pipe or the second collector pipe.
2. The microchannel heat exchanger according to claim 1, characterized in that, The first manifold has a first mounting groove on the side near the second manifold, and the first end of the flat tube is inserted into the first mounting groove; the second manifold has a second mounting groove on the side near the first manifold, and the second end of the flat tube is inserted into the second mounting groove.
3. The microchannel heat exchanger according to claim 1, characterized in that, Fins are installed between adjacent flat tubes.
4. The microchannel heat exchanger according to claim 1, characterized in that, The first manifold is connected to two ends with a first end cap, which is used to seal the first manifold. The second manifold is connected to two ends with a second end cap, which is used to seal the second manifold.
5. The microchannel heat exchanger according to claim 1, characterized in that, It also includes a partition, which is vertically inserted into the first manifold and the second manifold, and the partition is used to guide the refrigerant into the flat pipe.
6. The microchannel heat exchanger according to claim 1, characterized in that, N flat tubes are connected between the first manifold and the second manifold, and the N flat tubes are parallel to each other; the first end of the N flat tubes is connected to the first manifold, and the second end of the N flat tubes is connected to the second manifold.
7. The microchannel heat exchanger according to claim 3, characterized in that, It also includes a bending structure, which is connected to or integrally formed with the outermost flat tube.
8. The microchannel heat exchanger according to claim 1, characterized in that, The first manifold has a branch inlet and a branch outlet on the side away from the second manifold. Refrigerant flows in from the branch inlet and flows out from the branch outlet.
9. The microchannel heat exchanger according to claim 1, characterized in that, The comb teeth include a slider and a support portion, the support portion being inserted into the slider, and the inclined surface being provided at the end of the support portion away from the slider.
10. The microchannel heat exchanger according to claim 9, characterized in that, The height difference of the inclined planes is equal to the thickness of the flat tube.