Micro-channel heat exchanger flat tube

Abstract

The utility model discloses a microchannel heat exchanger flat tube, including: header pipe and pipeline fixing mechanism, the right surface of header pipe is fixedly connected with a first connecting pipe, the side surface of first connecting pipe is in sliding connection with a rubber ring, the inside of first connecting pipe is provided with a first groove, the inside of second connecting pipe is provided with a second groove, and the inside of second connecting pipe is provided with a second groove. The pipeline fixing mechanism comprises an upper clamping hoop, a lower clamping hoop, a bolt, a nut, a second connecting pipe, a first arc-shaped rubber strip and a second arc-shaped rubber strip, a second groove is formed in the second connecting pipe, a table-shaped connecting pipe is fixedly connected to the right end of the second connecting pipe, a flat pipe is fixedly connected to the right surface of the table-shaped connecting pipe, and the flat pipe is fixedly connected to the right surface of the table-shaped connecting pipe. The pipeline fixing mechanism connects the pipeline through the upper clamping hoop, the lower clamping hoop and the bolt, when the flat pipe is damaged or aged, the pipeline fixing mechanism can replace the single flat pipe, the whole flat pipe does not need to be replaced, the maintenance cost is reduced, and the single flat pipe is convenient to replace when replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a flat tube of a microchannel heat exchanger. Background Art

[0002] The flat tube of a heat exchanger is a kind of pipe used in heat exchangers, usually made of metal materials such as stainless steel, copper, aluminum, etc. Its main function is to increase the heat exchange area of the heat exchanger and improve the heat exchange efficiency. The flat tube of a microchannel heat exchanger is an important part of a microchannel heat exchanger, and is commonly used in automotive air conditioners and heat dissipation systems, etc., to improve the energy utilization efficiency of vehicles. Flat tubes of microchannel heat exchangers with different specifications and materials are applicable to different scenarios and requirements. For example, some flat tubes made of certain materials have better corrosion resistance and can work stably for a long time in specific environments. With the continuous development of technology, the performance of the flat tube of a microchannel heat exchanger is also constantly optimized and improved, bringing more efficient and energy-saving heat exchange solutions to various fields.

[0003] At present, most of the headers on microchannel heat exchangers are cylindrical, resulting in an arc shape at both ends of the flat tubes connected thereto. Due to such a connection method to ensure the connection seal, only fixed connection or welding can be adopted. In this case, when the flat tube is damaged, the whole part has to be replaced, increasing the use cost. After retrieval, it is found that the technical solution provided by the utility model with the application number CN202220245267.7 also has the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and provide a flat tube of a microchannel heat exchanger. The pipeline fixing mechanism connects the pipeline through an upper clamp, a lower clamp and a bolt. When the flat tube is damaged or aged, the pipeline fixing mechanism can replace the single flat tube without replacing the whole part, reducing the maintenance cost, and the single flat tube is convenient to replace when being replaced.

[0005] To achieve the above purpose, the utility model also provides a flat tube of a microchannel heat exchanger with the above features, including: a manifold and a pipeline fixing mechanism. A first connecting pipe is fixedly connected to the right surface of the manifold. A rubber ring is slidably connected to the side surface of the first connecting pipe. A first groove is arranged inside the first connecting pipe. The pipeline fixing mechanism includes an upper clamp, a lower clamp, a bolt, a nut, a second connecting pipe, a first arc-shaped rubber strip and a second arc-shaped rubber strip. The side surface of the bolt is threadedly connected to the upper clamp. The side surface of the bolt is threadedly connected to the nut. A second groove is arranged inside the second connecting pipe. A stepped connecting pipe is fixedly connected to the right end of the second connecting pipe. A flat tube is fixedly connected to the right surface of the stepped connecting pipe. Heat dissipation fins are fixedly connected to the lower surface of the flat tube. A channel is arranged inside the flat tube.

[0006] According to the flat tube of a microchannel heat exchanger described above, the number of the header pipes is two and they are distributed left and right, and the number of the heat dissipation fins is multiple, so the heat dissipation effect is good.

[0007] According to the flat tube of a microchannel heat exchanger described above, the side surface of the first arc-shaped rubber strip is fixedly connected with the lower clamp, and the side surface of the second arc-shaped rubber strip is fixedly connected with the lower clamp. The first arc-shaped rubber strip matches the first groove, and the second arc-shaped rubber strip matches the second groove, so the sealing effect is good.

[0008] According to the flat tube of a microchannel heat exchanger described above, openings are arranged inside the lower clamp, and the number of the first arc-shaped rubber strip and the second arc-shaped rubber strip is two and they are distributed up and down, and the connecting bolts and nuts are connected through the openings.

[0009] According to the flat tube of a microchannel heat exchanger described above, the side surface of the first arc-shaped rubber strip is fixedly connected with the upper clamp, and the side surface of the second arc-shaped rubber strip is fixedly connected with the upper clamp.

[0010] According to the flat tube of a microchannel heat exchanger described above, a bottom plate is fixedly connected to the lower surface of the heat dissipation fin, and a top plate is fixedly connected to the upper surface of the heat dissipation fin.

[0011] According to the flat tube of a microchannel heat exchanger described above, the inner surface of the rubber ring is slidably connected with the second connecting pipe, and the number of the flat tubes and channels is multiple.

[0012] According to the flat tube of a microchannel heat exchanger described above, the side surface of the bolt is in threaded connection with the nut.

[0013] The additional aspects and advantages of the present utility model will be partly given in the following description, partly will become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0014] The present utility model will be further described below in conjunction with the drawings and embodiments;

[0015] Figure 1 It is a schematic diagram of the overall structure of a flat tube of a microchannel heat exchanger of the present utility model;

[0016] Figure 2 It is a schematic diagram of a partial structure of a flat tube of a microchannel heat exchanger of the present utility model;

[0017] Figure 3 It is an exploded view of a pipe fixing mechanism of a flat tube of a microchannel heat exchanger of the present utility model;

[0018] Figure 4 It is a schematic diagram of the flat tube structure of a flat tube of a microchannel heat exchanger of the present utility model.

[0019] Legend:

[0020] 1. Manifold; 2. First connecting pipe; 3. Rubber ring; 4. Upper clamp; 5. Lower clamp; 6. Opening; 7. Bolt; 8. Nut; 9. Second connecting pipe; 10. Table-shaped connecting pipe; 11. Flat pipe; 12. Heat dissipation fins; 13. Bottom plate; 14. Channel; 15. Top plate; 16. First groove; 17. Second groove; 18. First arc-shaped rubber strip; 19. Second arc-shaped rubber strip; 20. Pipe fixing mechanism. Detailed implementation manners

[0021] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The function of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention. However, it should not be construed as a limitation on the protection scope of the present invention.

[0022] Refer to Figures 1-4, in an embodiment of the present utility model, a flat tube of a microchannel heat exchanger includes a flat tube of a microchannel heat exchanger, comprising: a header 1 and a pipe fixing mechanism 20. A first connecting pipe 2 is fixedly connected to the right surface of the header 1. A rubber ring 3 is slidably connected to the side surface of the first connecting pipe 2. A first groove 16 is provided inside the first connecting pipe 2. The pipe fixing mechanism 20 includes an upper clamp 4, a lower clamp 5, a bolt 7, a nut 8, a second connecting pipe 9, a first arc-shaped rubber strip 18 and a second arc-shaped rubber strip 19. The side surface of the bolt 7 is threadedly connected to the upper clamp 4, and the side surface of the bolt 7 is threadedly connected to the nut 8. A second groove 17 is provided inside the second connecting pipe 9. A tapered connecting pipe 10 is fixedly connected to the right end of the second connecting pipe 9. A flat tube 11 is fixedly connected to the right surface of the tapered connecting pipe 10. A heat dissipation fin 12 is fixedly connected to the lower surface of the flat tube 11, and the heat dissipation effect is good. A channel 14 is provided inside the flat tube 11. The number of headers 1 is two and they are distributed left and right. The number of heat dissipation fins 12 is multiple. The side surface of the first arc-shaped rubber strip 18 is fixedly connected to the lower clamp 5, and the side surface of the second arc-shaped rubber strip 19 is fixedly connected to the lower clamp 5. The first arc-shaped rubber strip 18 matches the first groove 16, and the second arc-shaped rubber strip 19 matches the second groove 17, and the sealing effect is good. An opening 6 is provided inside the lower clamp 5, and the bolt 7 and the nut 8 are connected through the opening 6. The number of the first arc-shaped rubber strip 18 and the second arc-shaped rubber strip 19 is two and they are distributed up and down. The side surface of the first arc-shaped rubber strip 18 is fixedly connected to the upper clamp 4, and the side surface of the second arc-shaped rubber strip 19 is fixedly connected to the upper clamp 4. A bottom plate 13 is fixedly connected to the lower surface of the heat dissipation fin 12, and a top plate 15 is fixedly connected to the upper surface of the heat dissipation fin 12. The inner surface of the rubber ring 3 is slidably connected to the second connecting pipe 9. The number of the flat tubes 11 and the channels 14 is multiple. The side surface of the bolt 7 is threadedly connected to the nut 8.

[0023] Working principle: When the flat tube 11 is damaged or aged and needs to be replaced, turn the nut 8 to remove the upper clamp 4, the lower clamp 5, and the bolt 7. Move the rubber ring 3 to the left to leave the side surface of the second connecting tube 9, and remove the second connecting tube 9, the frustum-shaped connecting tube 10, and the flat tube 11. Install the new second connecting tube 9, frustum-shaped connecting tube 10, and flat tube 11. First, make the right surface of the first connecting tube 2 contact and align with the left surface of the second connecting tube 9. Move the rubber ring 3 to the position between the first groove 16 and the second groove 17, so that the rubber ring 3 is also at the center position of the contact surface between the first connecting tube 2 and the second connecting tube 9. Clamp the upper clamp 4 and the lower clamp 5 on the rubber ring 3. The first arc-shaped rubber strip 18 matches the first groove 16, and the second arc-shaped rubber strip 19 matches the second groove 17. The first arc-shaped rubber strip 18 is snapped into the first groove 16, and the second arc-shaped rubber strip 19 is snapped into the second groove 17. The bolt 7 passes through the opening 6, and the bolt 7 connects the upper clamp 4 and the lower clamp 5. Turn the nut 8 to a suitable position to make the pipe fixing mechanism 20 stable. The pipe fixing mechanism 20 connects the first connecting tube 2 and the second connecting tube 9 through the upper clamp 4, the lower clamp 5, and the bolt 7. When the flat tube 11 is damaged or aged, the pipe fixing mechanism 20 can replace the single flat tube 11 without replacing the whole, reducing the maintenance cost. Moreover, when replacing the single flat tube 11, the replacement is convenient.

[0024] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the said technical field, various changes can also be made without departing from the gist of the present invention.

Claims

1. A flat tube of a microchannel heat exchanger, characterized in that, Including: A manifold (1) and a pipe fixing mechanism (20), a first connecting pipe (2) is fixedly connected to the right surface of the manifold (1), a rubber ring (3) is slidably connected to the side surface of the first connecting pipe (2), and a first groove (16) is provided inside the first connecting pipe (2); The pipe fixing mechanism (20) includes an upper clamp (4), a lower clamp (5), a bolt (7), a nut (8), a second connecting pipe (9), a first arc-shaped rubber strip (18) and a second arc-shaped rubber strip (19). The side surface of the bolt (7) is threadedly connected to the upper clamp (4), the side surface of the bolt (7) is threadedly connected to the nut (8), a second groove (17) is provided inside the second connecting pipe (9), a tapered connecting pipe (10) is fixedly connected to the right end of the second connecting pipe (9), a flat pipe (11) is fixedly connected to the right surface of the tapered connecting pipe (10), heat dissipation fins (12) are fixedly connected to the lower surface of the flat pipe (11), and a channel (14) is provided inside the flat pipe (11).

2. The flat tube of a microchannel heat exchanger according to claim 1, characterized in that, The number of the manifolds (1) is two and they are distributed left and right, and the number of the heat dissipation fins (12) is multiple.

3. The flat tube of a microchannel heat exchanger according to claim 1, wherein The side surface of the first arc-shaped rubber strip (18) is fixedly connected to the lower clamp (5), and the side surface of the second arc-shaped rubber strip (19) is fixedly connected to the lower clamp (5).

4. A flat tube of a microchannel heat exchanger according to claim 1, characterized in that, An opening (6) is provided inside the lower clamp (5), and the number of the first arc-shaped rubber strip (18) and the second arc-shaped rubber strip (19) is two and they are distributed up and down.

5. A flat tube of a microchannel heat exchanger according to claim 1, characterized in that, The side surface of the first arc-shaped rubber strip (18) is fixedly connected to the upper clamp (4), and the side surface of the second arc-shaped rubber strip (19) is fixedly connected to the upper clamp (4).

6. A flat tube of a microchannel heat exchanger according to claim 1, characterized in that, A bottom plate (13) is fixedly connected to the lower surface of the heat dissipation fins (12), and a top plate (15) is fixedly connected to the upper surface of the heat dissipation fins (12).

7. A flat tube of a microchannel heat exchanger according to claim 1, wherein, The inner surface of the rubber ring (3) is slidably connected to the second connecting pipe (9), and the number of the flat pipes (11) and the channels (14) is multiple.

8. A flat tube of a microchannel heat exchanger according to claim 1, characterized in that, The side surface of the bolt (7) is threadedly connected to the nut (8).

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