CN210532751U

CN210532751U - 12mm core thickness two-flow-path efficient supercooling type condenser

Info

Publication number: CN210532751U
Application number: CN201921294668.6U
Authority: CN
Inventors: 聂展明; 魏文洪; 张志辉; 喻晨曦
Original assignee: Jiangxi Xindian Automobile Air Conditioner Co ltd
Current assignee: Jiangxi Xindian Automobile Air Conditioner Co ltd
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2020-05-15
Anticipated expiration: 2029-08-09

Abstract

The utility model discloses a 12mm core thickness two-flow-path high-efficiency super-cooling condenser, belonging to the condenser field, comprising a left collecting pipe, a right collecting pipe, a guard plate, a multi-channel flat pipe and fins; the liquid storage dryer, the inlet pressing plate and the outlet pressing plate are fixed with the left collecting pipe and are communicated with each other; the inlet pressure plate and the outlet pressure plate are communicated with the right collecting pipe; the left collecting pipe is communicated with the right collecting pipe through a multi-channel flat pipe; the same corresponding positions of the left collecting pipe and the right collecting pipe are provided with blocking sheets, and the condenser core body is divided into a first flow and a second flow by the blocking sheets; the ratio of the flow area of the first flow path to the flow area of the second flow path was 5: 1. The refrigerant is distributed more uniformly, and the refrigeration performance and the refrigeration effect are improved; the thickened flat tubes are adopted, so that the flow area of the refrigerant is increased, the fluid resistance of the refrigerant is reduced, the oil return effect is good, and the test life of the compressor is prolonged.

Description

12mm core thickness two-flow-path efficient supercooling type condenser

Technical Field

The utility model relates to a condenser field especially relates to a 12mm core is thick high-efficient super-cooled formula condenser of two process.

Background

The supercooled condenser assembly is widely applied to automobile air conditioners, the technology is mature day by day, the condenser core bodies are various, the core body thickness of the common condenser is 20mm, 18mm, 16mm, 12mm and the like, and the condenser assembly with the specifications can basically meet the requirements of conventional cars, SUVs, MPVs, light and heavy trucks, light and passenger vehicles and other vehicles. But at present, the requirements of customers are higher and higher, and the condenser assembly meets the performance condition of an air conditioning system, so that the product is required to have high reliability, light weight and good economy; however, the condenser with 12mm core thickness applied in the current automobile air conditioning system has the main structural characteristics that the condenser has a cross-flow type multi-flow structure, the flat pipe of the condenser adopts a thin-wall pipe, the thickness is small, and the product has the following defects:

firstly, because of the multi-flow structure supercooling condenser, the refrigerant flow resistance is large, the refrigerant is unevenly distributed, the maximum performance of the condenser cannot be exerted, and the refrigeration performance is insufficient; and secondly, because the flat pipes are thin-wall flat pipes, the flow area of the flat pipes is small, the flow resistance of the refrigerant is large, the oil return effect is not good, the service life of the compressor is influenced, and the refrigerating capacity of the system is reduced. Therefore, effective solutions to solve the above problems need to be proposed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a 12mm core thick two-flow-path high-efficiency super-cooling condenser to solve the existing technical defects, so that the refrigerant is more uniformly distributed, and the refrigeration performance and the refrigeration effect are improved; the thickened flat tubes are adopted, so that the flow area of the refrigerant is increased, the fluid resistance of the refrigerant is reduced, the oil return effect is good, and the test life of the compressor is prolonged.

The specific technical scheme is as follows:

a12 mm core thickness two-flow-path efficient supercooling type condenser comprises a left collecting pipe, a right collecting pipe, guard plates, a plurality of multi-channel flat pipes and fins, wherein the right collecting pipe is parallel to the left collecting pipe and is arranged opposite to the left collecting pipe;

the liquid storage dryer is fixed with the left collecting pipe and is communicated with the left collecting pipe, the inlet pressing plate is fixedly arranged at the upper end part of the right collecting pipe, and the outlet pressing plate is fixedly arranged at the lower end part of the right collecting pipe;

the inlet pressure plate and the outlet pressure plate are communicated with the right collecting pipe;

the left collecting pipe is communicated with the right collecting pipe through the multi-channel flat pipe;

the two ends of the left collecting pipe and the right collecting pipe are closed, the same corresponding positions of the left collecting pipe and the right collecting pipe are provided with blocking sheets, and the condenser core is divided into a first flow and a second flow by the blocking sheets; the ratio of the flow area of the first flow to the flow area of the second flow is 5: 1; and the refrigerant can enter from the inlet pressure plate and enter the liquid storage dryer communicated with the left collecting pipe along the first flow path, and then flows to the outlet pressure plate through the second flow path and is discharged.

As a further improvement of the above technical solution, the number of the multi-channel flat tubes in the second flow path is at least 10, and the multi-channel flat tubes are extruded tubes or folded tubes.

As a further improvement of the above technical solution, the length distance between the left side wall surface of the left header and the right side wall surface of the right header is 100mm to 900mm, the height dimensions of the left header and the right header are both 100mm to 900mm, and the thickness of the protection plate is 12mm ± 2 mm.

As a further improvement of the technical scheme, the left collecting pipe and the right collecting pipe are a4343/A3003 aluminum alloy composite circular pipes, two ends of each circular pipe are sealed by collecting pipe blocking covers, the outer diameter of the left collecting pipe and the outer diameter of the right collecting pipe are phi 16 mm-phi 20mm, and the wall thickness of each circular pipe is 0.8mm-3 mm.

As a further improvement of the technical scheme, the multi-channel flat tube is an A1100 porous galvanized aluminum tube, 4-8 circulation holes are formed in the multi-channel flat tube along the length direction of the multi-channel flat tube, the length of the cross section of the multi-channel flat tube is 10-14 mm, the width of the multi-channel flat tube is 1-3 mm, and the wall thickness of the multi-channel flat tube is 0.2-1 mm.

As a further improvement of the technical scheme, the fin A4343/A3003/A4343 is made of an aluminum alloy composite material, the height dimension of the fin is 4-8 mm, the width dimension of the fin is 10-14 mm, and the windowing angle a is as follows: 30 degrees +/-2 degrees and the wall thickness is 0.05mm-0.12 mm.

As a further improvement of the above technical solution, a right upper support and a right lower support connected with the outside are fixedly arranged on the right collecting pipe in sequence from top to bottom along the axial direction of the right collecting pipe; the upper right bracket and the lower right bracket are positioned between the inlet pressing plate and the outlet pressing plate.

The utility model has the advantages that:

1. the condenser is designed by adopting a two-flow structure, the first flow and the second flow are distributed according to a ratio of 5:1, so that the refrigerant flows uniformly, the heat exchange performance is high, the heat exchange is more sufficient, the heat exchange efficiency is further improved, the pressure loss of the refrigerant in the condenser is reduced, the power consumption of the compressor can be reduced, meanwhile, the refrigerant flows through the single-row indoor condenser for heat exchange, the function of distributing or reducing the temperature of the refrigerant is realized, compared with products with the same structure, the heat dissipation capacity is provided by more than 10%, the condenser with high heat exchange performance adopts the two-flow structure design, the flow resistance of the refrigerant is smaller, and the power consumption of the compressor is reduced;

2. the thickened multi-channel flat tube is adopted, so that the flow area of a refrigerant is enlarged, oil return of the whole air conditioning system is facilitated, and the service life of the compressor is prolonged.

3. The structure is compact, the product is light, and the economy is good; the product has small inner volume and good pressure resistance.

Drawings

Fig. 1 is a schematic perspective view of a 12mm core thickness two-flow-path high-efficiency supercooled condenser according to an embodiment of the present invention;

FIG. 2 is a drawing showing the dimensions of a 12mm core thickness two-flow-path high-efficiency supercooled condenser according to an embodiment of the present invention;

fig. 3 is a schematic diagram of the refrigerant flow of the two-flow-path high-efficiency supercooled condenser with a core thickness of 12mm according to the embodiment of the present invention;

fig. 4 is a sectional size diagram of the left header (right header) according to an embodiment of the present invention;

fig. 5 is a sectional view of a multi-channel flat tube according to an embodiment of the present invention;

fig. 6 is a transverse cross-sectional view of a fin according to an embodiment of the present invention;

fig. 7 is a longitudinal sectional view of a fin according to an embodiment of the present invention.

The figure is marked with: left pressure manifold 1, fin 2, flat pipe 3 of multichannel, backplate 4, right pressure manifold 5, import clamp plate 6, upper right support 7, right lower carriage 8, export clamp plate 9, pressure manifold blanking cover 10, stock solution dryer 11, closure plate 12, left socle 13.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

The present invention will be described in further detail with reference to the accompanying drawings. Please refer to the attached drawings.

As shown in fig. 1-7, a 12mm core thickness two-flow-path high-efficiency supercooling type condenser comprises a left collecting pipe 1, a right collecting pipe 5 which is parallel to and opposite to the left collecting pipe 1, a guard plate 4 for connecting the upper and lower ends of the left collecting pipe 1 and the right collecting pipe 5, a plurality of multi-channel flat pipes 3 which are fixedly arranged between the left collecting pipe 1 and the right collecting pipe 5 and are horizontally arranged at equal intervals, and fins 2 which are arranged between the multi-channel flat pipes 3; the liquid storage dryer 11 is fixed with the left collecting pipe 1 and is communicated with the left collecting pipe, the inlet pressing plate 6 is fixedly arranged at the upper end part of the right collecting pipe 5, and the outlet pressing plate 9 is fixedly arranged at the lower end part of the right collecting pipe 5; the inlet pressure plate 6 and the outlet pressure plate 9 are communicated with the right collecting pipe 5; the left collecting pipe 1 is communicated with the right collecting pipe 5 through a multi-channel flat pipe 3; the two ends of the left collecting pipe 1 and the right collecting pipe 5 are closed, the same corresponding positions of the left collecting pipe 1 and the right collecting pipe 5 are respectively provided with a blocking piece 12, and the condenser core body is divided into a first flow and a second flow by the blocking pieces 12; the ratio of the flow area of the first flow to the flow area of the second flow is 5: 1; and the refrigerant can enter from the inlet pressure plate 6 and enter the liquid storage dryer 11 communicated with the left collecting pipe 1 along the first flow path, and then flow to the outlet pressure plate 9 through the second flow path and are discharged.

In the above implementation, specifically, the refrigerant flows in 6 from the inlet pressure plate, enters the right collecting pipe 5, flows through the first flow of the condenser core, and then enters the receiver drier 11, the receiver drier 11 mainly comprises a liquid storage tank, a drying agent and a filter, and mainly functions to store the refrigerant, filter moisture and impurities from the right collecting pipe 5, prevent the gaseous refrigerant from entering the evaporator, the receiver drier 11 provides a buffer space for the liquid refrigerant, and can timely adjust and supplement the flow of the liquid refrigerant supplied to the thermostatic expansion valve, the refrigerant flows out from the liquid storage dryer 11 to a second flow inlet on the left collecting pipe 1, then flows through a second flow and then reaches the right collecting pipe 5, and finally flows out from an outlet pressing plate 9 on the right collecting pipe 5, and the condenser core is divided into a first flow and a second flow by the blocking piece 12; the ratio of the flow area of the first flow to the flow area of the second flow is 5: 1; by the design and the layout, the refrigerant is uniform in flow distribution, small in flow resistance and high in heat exchange performance, so that heat exchange is more sufficient, and the heat exchange efficiency is high; the temperature and the flow distribution uniformity of refrigerant fluid in the condenser can be improved, the pressure loss of the refrigerant in the condenser is reduced, the power consumption of the compressor can be reduced, meanwhile, the refrigerant flows through the single-row indoor condenser for heat exchange, and therefore the function of radiating or reducing the temperature of the refrigerant is realized, compared with similar structural products, the heat radiating capacity is provided by more than 10%, the heat exchange performance is high, in addition, the thickness of the multi-channel flat tube 3 is thickened, the circulation area is enlarged, the refrigerant flow resistance is small, the oil return effect is good, and the test service life of the compressor is favorably prolonged; meanwhile, the circular collecting pipe structure is adopted, the structure is simple and reliable, the production process is simple, the pressure resistance of the product is strong, and the reliability is good. The refrigerant of this application is when flowing through this two-flow supercooling type condenser, carries out the heat exchange at its air side to realized giving off or reducing the function of refrigerant temperature, energy-conserving high efficiency, simple structure.

Finally, in actual design, the condenser of different core thickness has been tested and tested to under the air conditioner operating mode to the condenser that 16mm core is thick has been collected and has been carried out the contrast with the high-efficient super-cooled condenser of 12mm core of this application heat transfer performance and refrigerant resistance under different wind speeds (as table 1), in order to make the condenser of two kinds of specifications only consider that wind speed has comparability under the condition of influence, the effective positive area of two kinds of specification types condenser core is the same, and experimental operating mode is unanimous.

TABLE 1

The condenser is designed to be a 12mm core thick structure, so that the overall structure of a product is compact, the lightweight design requirement is met, compared with a condenser with the same effective positive area and the thickness of 16mm, the heat exchange performance of the product is close to that of the condenser, but the refrigerant resistance is reduced, the weight of the product is reduced by 40%, the product cost and the system refrigerant consumption are greatly reduced, and the condenser has good economic benefit; the device can be widely applied to various passenger vehicle types and SUV vehicle types.

It should be added that the left collecting pipe 1 and the right collecting pipe 5 are extruded and molded, the slotted holes of the connecting multi-channel flat pipe 3 are punched and molded, the circular holes connected with the inlet pressure plate 6 and the outlet pressure plate 9 adopt a punching or drilling process, and the grooves for installing the blocking pieces 12 adopt a notching or grooving process; after the slotted hole, the slotted hole and the round hole are punched, deburring and cleaning are needed, the multi-channel flat tube 3 is extruded or adopts a folding tube, and the fin 2 is formed by rolling by a fin machine; the guard plate 4, the header cap 10 and the blocking piece 12 are all formed by punching. The inlet pressure plate 6, the outlet pressure plate 9, the right upper bracket 7, the right lower bracket 8 and the left bracket 13 are all formed by extrusion of section bars, and the assembly surfaces and the through holes are machined to ensure the size; in addition, the liquid storage dryer 11 is of a profile extrusion vehicle type, and the size of the assembly surface and the threaded hole are guaranteed by machining. During specific assembly, an automatic assembling machine or a manual assembling machine is adopted to respectively assemble the left collecting pipe 1, the blocking piece 12 and the collecting pipe blocking cover 10 into a left collecting pipe assembly, and the right collecting pipe 5, the blocking piece 12 and the collecting pipe blocking cover 10 into a right collecting pipe assembly; arranging a multi-channel flat tube 3 and fins 2 by using a core assembling machine, then respectively placing a guard plate 4 at the upper part and the lower part, respectively placing a left collecting tube component and a right collecting tube component which are assembled at the left and the right parts, then tightly pressing the core assembling machine to finish the core assembling of the condenser core body, and clamping and fixing the whole condenser core body by using a clamp; and then an inlet pressure plate 6, an outlet pressure plate 9, a liquid storage dryer 10, a right upper support 7, a right lower support 8 and a left support 13 are respectively spot-welded on corresponding positions of the collecting pipe by adopting argon arc welding on a welding tool, and finally the welded condenser assembly is placed into an automatic brazing furnace for welding. And after the condenser assembly is welded out of the furnace, 100% helium gas is required to be subjected to sealing leakage detection.

Further, the number of the multi-channel flat tubes 3 in the second flow path is at least 10, and the multi-channel flat tubes 3 are extruded tubes or folded tubes.

Further, the length distance between the left side wall surface of the left collecting pipe 1 and the right side wall surface of the right collecting pipe 5 is 100mm-900mm, the height sizes of the left collecting pipe 1 and the right collecting pipe 5 are both 100mm-900mm, and the thickness of the protective plate 4 is 12mm +/-2 mm. As shown in FIG. 2, L in FIG. 2 represents the condenser core length distance, H represents the condenser core height dimension, and W represents the condenser core thickness distance.

Furthermore, the left collecting pipe 1 and the right collecting pipe 5 are A4343/A3003 aluminum alloy composite round pipes, two ends of the left collecting pipe 1 and the right collecting pipe 5 are sealed by collecting pipe plugging covers 10, the outer diameter of the left collecting pipe 1 and the outer diameter of the right collecting pipe 5 are phi 16 mm-phi 20mm, and the wall thickness is 0.8mm-3 mm. D1 in fig. 4 represents the outer diameter of the left header 1 and the right header 5, and t represents the wall thickness of the left header 1 and the right header 5.

Furthermore, the multi-channel flat tube 3 is an A1100 porous galvanized aluminum tube, 4-8 circulation holes are formed in the multi-channel flat tube 3 along the length direction of the multi-channel flat tube, the length dimension of the cross section of the multi-channel flat tube 3 is 10mm-14mm, the width dimension of the multi-channel flat tube 3 is 1mm-3mm, and the wall thickness of the multi-channel flat tube 3 is 0.2mm-1 mm. Specifically, as shown in fig. 5, it should be noted that, L marked in fig. 5 represents a length dimension of the multi-channel flat tube 3, d represents a width dimension of the multi-channel flat tube 3, and h represents a thickness dimension of the multi-channel flat tube 3.

Furthermore, the fins 2 are A4343/A3003/A4343 which are made of aluminum alloy composite materials, the height dimension is 4mm-8mm, the width dimension is 10mm-14mm, and the windowing angle a is as follows: 30 degrees +/-2 degrees and the wall thickness is 0.05mm-0.12 mm. The fin 2 is a4343/a3003/a4343 made of an aluminum alloy composite material, and is easy to process, and can be made into various sections and plates, which have good corrosion resistance and good heat dissipation performance, and are easy to process, and can be made into various sections and plates, which have good corrosion resistance and good heat dissipation performance, specifically referring to fig. 6, it should be noted that Hf marked in two figures of fig. 6-7 represents the height (wave height) of the fin 2, Wf represents the width dimension of the fin 2, and t represents the thickness of the fin 2.

Furthermore, a right upper support 7 and a right lower support 8 which are connected with the outside are fixedly arranged on the right collecting pipe 5 in sequence from top to bottom along the axial direction of the right collecting pipe; and the right upper support 7 and the right lower support 8 are positioned between the inlet pressing plate 6 and the outlet pressing plate 9, are matched with the two left supports 13 for use, and are conveniently connected with an automobile.

The foregoing is a more detailed description of the present invention that is presented in conjunction with specific embodiments, and it is not to be understood that the specific embodiments of the present invention are limited to these descriptions. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement.

Claims

1. The utility model provides a high-efficient super-cooled condenser of 12mm core thickness two process, its characterized in that:

the multi-channel flat tube heat exchanger comprises a left collecting pipe (1), a right collecting pipe (5) which is parallel to the left collecting pipe (1) and is arranged right, a guard plate (4) which is used for connecting the upper end and the lower end of the left collecting pipe (1) and the right collecting pipe (5), a plurality of multi-channel flat tubes (3) which are fixedly arranged between the left collecting pipe (1) and the right collecting pipe (5) and are horizontally arranged at equal intervals, and fins (2) which are positioned between the multi-channel flat tubes (3);

the liquid storage dryer (11) is fixed with the left collecting pipe (1) and is communicated with the left collecting pipe, an inlet pressing plate (6) is fixedly arranged at the upper end part of the right collecting pipe (5), and an outlet pressing plate (9) is fixedly arranged at the lower end part of the right collecting pipe (5);

the inlet pressure plate (6) and the outlet pressure plate (9) are communicated with the right collecting pipe (5);

the left collecting pipe (1) is communicated with the right collecting pipe (5) through the multi-channel flat pipe (3);

the two ends of the left collecting pipe (1) and the right collecting pipe (5) are closed, the same corresponding positions of the left collecting pipe (1) and the right collecting pipe (5) are respectively provided with a blocking sheet (12), and the condenser core body is divided into a first flow and a second flow by the blocking sheets (12); the ratio of the flow area of the first flow to the flow area of the second flow is 5: 1; and the refrigerant can enter from the inlet pressure plate (6) and enter the liquid storage dryer (11) communicated with the left collecting pipe (1) along the first flow path, and then flow to the outlet pressure plate (9) through the second flow path and are discharged.

2. A 12mm core thickness two-flow path high efficiency supercooled condenser as claimed in claim 1, wherein:

the number of the multi-channel flat tubes (3) in the second flow path is at least 10, and the multi-channel flat tubes (3) are extruded tubes or folded tubes.

3. A 12mm core thickness two-flow path high efficiency supercooled condenser as claimed in claim 1, wherein:

the length distance between the left side wall surface of the left collecting pipe (1) and the right side wall surface of the right collecting pipe (5) is 100mm-900mm, the height sizes of the left collecting pipe (1) and the right collecting pipe (5) are both 100mm-900mm, and the thickness of the protective plate (4) is 12mm +/-2 mm.

4. A 12mm core thickness two-flow path high efficiency supercooled condenser as claimed in claim 1, wherein:

the left collecting pipe (1) and the right collecting pipe (5) are A4343/A3003 aluminum alloy composite round pipes, two ends of the left collecting pipe and the right collecting pipe are sealed by collecting pipe plugging covers (10), the outer diameter of the left collecting pipe (1) and the right collecting pipe (5) is phi 16 mm-phi 20mm, and the wall thickness is 0.8mm-3 mm.

5. A 12mm core thickness two-flow path high efficiency supercooled condenser as claimed in claim 1, wherein:

the multi-channel flat tube (3) is an A1100 porous galvanized aluminum tube, 4-8 circulation holes are formed in the multi-channel flat tube (3) along the length direction of the multi-channel flat tube, the length dimension of the cross section of the multi-channel flat tube (3) is 10mm-14mm, the width dimension of the multi-channel flat tube (3) is 1mm-3mm, and the wall thickness of the multi-channel flat tube (3) is 0.2mm-1 mm.

6. A 12mm core thickness two-flow path high efficiency supercooled condenser as claimed in claim 1, wherein:

the fin (2) is A4343/A3003/A4343 which is made of an aluminum alloy composite material, the height dimension of the fin is 4-8 mm, the width dimension of the fin is 10-14 mm, and the windowing angle a is as follows: 30 degrees +/-2 degrees and the wall thickness is 0.05mm-0.12 mm.

7. A 12mm core thickness two-flow path high efficiency supercooled condenser as claimed in claim 1, wherein:

a right upper support (7) and a right lower support (8) which are connected with the outside are sequentially and fixedly arranged on the right collecting pipe (5) from top to bottom along the axial direction of the right collecting pipe; the upper right support (7) and the lower right support (8) are positioned between the inlet pressing plate (6) and the outlet pressing plate (9).