Double-flow-channel micro-channel condenser

Abstract

The utility model discloses a double-channel micro-channel condenser which comprises two flat pipes which are arranged in parallel and are of a snakelike structure, radiating fins are filled between the upper flat pipes and the lower flat pipes which are adjacent to each other, a lower collecting pipe is connected between the lower ends of the two flat pipes, and an upper collecting pipe is connected between the upper ends of the two flat pipes. The lower collecting pipe and the upper collecting pipe are each provided with two mounting holes, the upper surface of the upper collecting pipe is connected with two upper side plates, the space between the lower surfaces of the upper side plates and the upper surfaces of the flat pipes is filled with cooling fins, two lower side plates are fixed to the lower surface of the lower collecting pipe, and the space between the upper surfaces of the lower side plates and the lower surfaces of the flat pipes is also filled with cooling fins. A double-flow-channel structure is adopted, the internal resistance of a refrigerating system can be effectively reduced, the pressure balance of the refrigerating system is kept, refrigerants can be fully liquefied for heat dissipation, and the heat dissipation efficiency is improved; under the same heat exchange capacity, the use space and the windward area of the condenser are greatly reduced, and the product cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration heat exchange structures, in particular to a double-flow channel microchannel condenser. Background Art

[0002] With the development of the market, the requirements for heat exchange effects of products in the refrigeration and heat exchange industry such as freezers and refrigerators are getting higher and higher, which requires the continued improvement of the heat exchange effect of the condenser. At present, most microchannel condensers are single-channel structures, and the heat dissipation area is usually increased by increasing the volume of the microchannel condenser. Due to the limitations of microchannel flat tube materials and processes, the length and width of the microchannel condenser can only be increased, that is, the length of the flow channel is increased, and the width of the flow channel cannot be further increased. After the length and width of the microchannel condenser are increased, the use space of the microchannel condenser and the specifications of the heat dissipation fan need to be increased accordingly to ensure uniform heat dissipation on the surface of the microchannel condenser, resulting in a significant increase in the volume and cost of the heat exchange product; some conventional double-layer or multi-layer microchannel condensers simply superimpose the thickness of the condenser, the utilization rate of the heat dissipation area is low, the heat dissipation capacity has not been greatly improved, and the heat exchange effect is not ideal. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a dual-channel microchannel condenser. The dual-channel structure can effectively reduce the internal resistance of the refrigeration system, maintain the pressure balance of the refrigeration system, allow the refrigerant to fully liquefy and dissipate heat, and improve the heat dissipation efficiency. Under the same heat exchange capacity, this solution greatly reduces the use space and windward area of ​​the condenser, reduces product costs, and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dual-channel microchannel condenser, comprising two flat tubes of a serpentine structure placed in parallel, heat dissipation fins are filled between the upper and lower adjacent flat tubes, a lower collecting pipe is connected between the lower ends of the two flat tubes, an upper collecting pipe is connected between the upper ends of the two flat tubes, two mounting holes are provided on the lower collecting pipe and the upper collecting pipe, two upper side plates are connected to the upper surface of the upper collecting pipe, heat dissipation fins are filled between the lower surface of the upper side plate and the upper surface of the flat tube, two lower side plates are fixed to the lower surface of the lower collecting pipe, heat dissipation fins are also filled between the upper surface of the lower side plate and the lower surface of the flat tube, and by filling the heat dissipation fins, the lower collecting pipe and the connection between the lower collecting pipe and the flat tube can be prevented from being deformed due to stress, resulting in leakage.

[0005] Furthermore, the heat dissipation fins are connected to the flat tubes by brazing, and the heat dissipation fins are a corrugated structure.

[0006] Furthermore, the lower header and the upper header have the same structure and are connected with a plugging cap at one end, and the other ends of the upper header and the lower header are respectively provided with an inlet pipe and an outlet pipe.

[0007] Furthermore, two brackets are fixed between the two lower panels. The brackets and the lower panels are arranged perpendicular to each other, and mounting holes are provided at both ends of the brackets. The strength of the two lower panels can be strengthened by the two brackets, thereby strengthening the connection strength of the two sets of core bodies. The mounting holes can be used for connection and assembly with the product.

[0008] Compared with the prior art, the beneficial effects of the utility model are: the strength of the two lower side plates can be strengthened by the two brackets, thereby strengthening the connection strength of the two groups of cores; the through holes can be used for connection and assembly with the product; the two groups of flat tubes can be connected as one in parallel, and the traditional microchannel condenser can be converted into a double-channel microchannel condenser; the lower collecting pipe, the connection between the lower collecting pipe and the flat tubes can be prevented from being deformed due to stress and causing leakage by filling the heat dissipation fins; the double-channel microchannel condenser adopts a double-channel structure, which can effectively reduce the internal resistance of the refrigeration system, maintain the pressure balance of the refrigeration system, allow the refrigerant to fully liquefy and dissipate heat, and improve the heat dissipation efficiency; under the same heat exchange capacity, this solution greatly reduces the use space and windward area of ​​the condenser, thereby reducing product costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the structure of the utility model;

[0010] Figure 2 This is a schematic diagram of the front view structure of the utility model;

[0011] Figure 3 It is a schematic diagram of the structure of the utility model from top view.

[0012] In the figure: 1 upper collecting pipe, 2 lower collecting pipe, 3 blocking cap, 4 flat tube, 5 heat dissipation fin, 6 upper side plate, 7 lower side plate, 8 inlet pipe, 9 outlet pipe, 10 bracket. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0014] See also Figure 1-3The utility model provides a technical solution: a dual-channel microchannel condenser, comprising two flat tubes 4 of a serpentine structure placed in parallel, heat dissipation fins 5 are filled between the upper and lower adjacent flat tubes 4, a lower header 2 is connected between the lower ends of the two flat tubes 4, an upper header 1 is connected between the upper ends of the two flat tubes 4, two mounting holes are provided on the lower header 2 and the upper header 1, two upper side plates 6 are connected to the upper surface of the upper header 1, and heat dissipation fins 5 are filled between the lower surface of the upper plate 6 and the upper surface of the flat tube 4, two lower side plates 7 are fixed to the lower surface of the lower header 2, and heat dissipation fins 5 are also filled between the upper surface of the lower plate 7 and the lower surface of the flat tube 4. By filling the heat dissipation fins 5, the lower header 2 and the connection between the lower header 2 and the flat tube 4 can be prevented from being deformed by force and causing leakage. The heat dissipation fins 5 are connected to the flat tube 4 by brazing, and the heat dissipation fins 5 are of a corrugated structure. The tube 2 has the same structure as the upper collecting tube 1 and is connected to a plugging cap 3 at one end. The other ends of the upper collecting tube 1 and the lower collecting tube 2 are respectively provided with an inlet tube 8 and an outlet tube 9. Two brackets 10 are fixed between the two lower side plates 7. The brackets 10 and the lower side plates 7 are arranged perpendicular to each other, and both ends of the brackets 10 are provided with mounting holes. The strength of the two lower side plates 7 can be strengthened by the two brackets 10, so that the connection strength of the two groups of core bodies can be strengthened. The mounting holes can be used for connection and assembly with the product, and the two groups of flat tubes 4 are connected as one in parallel, and the traditional microchannel condenser is converted into a double-channel microchannel condenser. The double-channel microchannel condenser adopts a double-channel structure, which can effectively reduce the internal resistance of the refrigeration system, maintain the pressure balance of the refrigeration system, and allow the refrigerant to fully liquefy and dissipate heat, thereby improving the heat dissipation efficiency. Under the same heat exchange capacity, this solution greatly reduces the use space and windward area of ​​the condenser, thereby reducing product costs.

[0015] When in use: the strength of the two lower plates 7 can be strengthened by the two brackets 10, so as to strengthen the connection strength of the two groups of cores. The through holes can be used for connection and assembly with the product. The two groups of flat tubes 4 are connected as one in parallel, and the traditional microchannel condenser is converted into a double-channel microchannel condenser. The lower manifold 2 and the connection between the lower manifold 2 and the flat tube 4 can be filled with heat dissipation fins 5 to avoid deformation caused by stress and leakage. The double-channel structure can effectively reduce the internal resistance of the refrigeration system, maintain the pressure balance of the refrigeration system, allow the refrigerant to fully liquefy and dissipate heat, and improve the heat dissipation efficiency.

[0016] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A dual-channel microchannel condenser, comprising two serpentine flat tubes (4) placed in parallel, characterized in that: Heat dissipation fins (5) are filled between upper and lower adjacent flat tubes (4); a lower header (2) is connected between the lower ends of the two flat tubes (4); an upper header (1) is connected between the upper ends of the two flat tubes (4); two mounting holes are provided on the lower header (2) and the upper header (1); two upper side plates (6) are connected to the upper surface of the upper header (1); heat dissipation fins (5) are filled between the lower surface of the upper side plates (6) and the upper surface of the flat tubes (4); two lower side plates (7) are fixed to the lower surface of the lower header (2); heat dissipation fins (5) are also filled between the upper surface of the lower side plates (7) and the lower surface of the flat tubes (4).

2. A dual-flow microchannel condenser according to claim 1, characterized in that: The heat dissipation fins (5) are connected to the flat tubes (4) by brazing, and the heat dissipation fins (5) are of a corrugated structure.

3. A dual-flow microchannel condenser according to claim 1, characterized in that: The lower header (2) and the upper header (1) have the same structure and are connected to a plugging cap (3) at one end, and the other ends of the upper header (1) and the lower header (2) are respectively provided with an inlet pipe (8) and an outlet pipe (9).

4. A dual-flow microchannel condenser according to claim 1, characterized in that: Two brackets (10) are fixed between the two lower side plates (7); the brackets (10) and the lower side plates (7) are arranged perpendicular to each other, and mounting through holes are provided at both ends of the brackets (10).

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