CN211900771U - High-performance radiator for engine - Google Patents

Abstract

The utility model provides a high performance radiator for engine, it includes cooling tube (10) and heat dissipation area (20), cooling tube (10) with heat dissipation area (20) all extend along first direction (L), cooling tube (10) with heat dissipation area (20) set up on second direction (H) mutually perpendicular with first direction (L) in turn cooling tube (10) and one heat dissipation area (20) the whole that forms be in second direction (H) on the size be 7.7mm to 9mm, heat dissipation area (20) are in size on second direction (H) is 5.8mm to 7.3 mm. According to the utility model discloses a radiator heat transfer performance is good, and the flow resistance that produces working medium is little.

Description

High-performance radiator for engine

Technical Field

The utility model relates to a motor vehicle accessory field especially relates to a radiator for engine of vehicle.

Background

To dissipate heat from the engine or other heat source of a motor vehicle, a radiator is often used.

The heat sink typically includes a coolant chamber, a heat dissipating core, and other accessories. The radiating core body comprises a group of parallel radiating pipes, two ends of each radiating pipe are generally communicated with a cooling liquid chamber respectively, and a wavy radiating belt is arranged between every two adjacent radiating pipes. By circulating the coolant in the radiator pipe, the heat absorbed by the coolant (for example, the heat of the engine is absorbed by the coolant flowing through the passage defined by the engine case) can be released to the air through the radiator pipe and the radiator strip.

However, the heat exchange capacity of the existing radiators is limited; and as the flow of the cooling liquid is increased, the flow resistance of the radiator is increased, so that the heat radiation performance cannot be fully exerted. Therefore, how to provide a heat sink with strong heat dissipation capability is an urgent problem to be solved in the field.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome or alleviate the not enough of above-mentioned prior art existence at least, provide a high performance radiator for engine.

The utility model provides a high performance radiator for engine, it includes cooling tube and heat dissipation area, the cooling tube with the heat dissipation area all extends along the first direction, the cooling tube with the heat dissipation area sets up on the second direction mutually perpendicular with the first direction alternately adjacent one on the second direction cooling tube and one the whole that the heat dissipation area formed is in the second direction on the size be 7.7mm to 9mm, the heat dissipation area is in the ascending size of second direction is 5.8mm to 7.3 mm.

In at least one embodiment, the dimension of the heat dissipation strip in the second direction is 6mm to 7.3 mm.

In at least one embodiment, the heat dissipation strip has a wave shape, and the dimension between adjacent peaks and valleys of the heat dissipation strip constitutes the dimension of the heat dissipation strip in the second direction.

In at least one embodiment, the radiating pipe is formed by bending a plate material, and has a flat shape and a maximum size in a third direction in a cross section perpendicular to the first direction,

the radiating pipe has only one port on a cross section perpendicular to the first direction, the port being located at one end portion of the radiating pipe in the third direction.

In at least one embodiment, in the middle of the third direction, one wall of the two walls of the radiating pipe opposite to the second direction is bent toward the other wall to form a partition connected to the other wall so as to partition the inner cavity of the radiating pipe into two chambers.

In at least one embodiment, two walls of the radiating pipe opposite to each other in the second direction partially protrude toward the inner cavity of the radiating pipe to form a plurality of protrusions.

In at least one embodiment, each of the projections is not disposed directly opposite another of the projections in the second direction.

In at least one embodiment, 8 rows of the protrusions are distributed on both the walls of the radiating pipe in a third direction perpendicular to both the first direction and the second direction.

In at least one embodiment, in the third direction, two of the protrusions form one set, and two adjacent sets of the protrusions are spaced apart by a distance of one set of the protrusions.

In at least one embodiment, the radiator is a radiator for a truck internal combustion engine.

According to the utility model discloses a radiator heat transfer performance is good, and the flow resistance that produces working medium is little.

Drawings

Fig. 1 is a schematic view of a partial structure of a heat sink according to an embodiment of the present invention.

Fig. 2 is an enlarged schematic view of the heat dissipation strip of fig. 1.

Fig. 3 is a sectional view of the radiating pipe of fig. 1.

Description of reference numerals:

10 heat dissipation pipes; 11, an interface; 12 spacing parts; 13 a convex portion; 20 a heat dissipation band; 21 a heat dissipation window;

l length direction; h, the height direction; w thickness direction.

Detailed Description

Exemplary embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the detailed description is only intended to teach one skilled in the art how to practice the invention, and is not intended to exhaust all possible ways of practicing the invention, nor is it intended to limit the scope of the invention.

Referring to fig. 1 to 3, L indicates a length direction of the radiator, and the length direction L coincides with a length direction of the radiating pipe 10, unless otherwise specified; h represents the height direction of the heat sink; w represents the thickness direction of the heat sink.

Fig. 1 is a schematic view of a partial structure of a heat sink according to the present invention. The radiator of the invention is preferably a radiator for an engine, and more preferably a radiator for a truck internal combustion engine. The radiator according to the present invention includes a radiating pipe 10 and a radiating band 20.

The heat pipe 10 extends in a longitudinal direction L (also referred to as a first direction), and a plurality of heat pipes 10 are arranged in parallel at intervals in a height direction H (also referred to as a second direction). Preferably, the length direction L is perpendicular to the height direction H.

The radiating pipe 10 is for a cooling fluid to circulate therein. Both ends of the radiating pipe 10 in the length direction L are connected to one cooling liquid chamber (not shown), respectively.

The radiating band 20 is provided between the adjacent radiating pipes 10, and the radiating band 20 is connected to the radiating pipes 10 at both sides in the height direction H, for example, by welding.

Referring to fig. 2, the heat dissipation tape 20 is a waved sheet structure, and preferably, the heat dissipation tape 20 is made of aluminum foil. The corrugated heat radiation band 20 is formed with heat radiation windows 21 arranged in the thickness direction W at sections between adjacent crests and troughs. The plurality of rows of heat radiation windows 21 are formed in a substantially louver shape, and the heat radiation windows 21 are formed by, for example, forming slits in the surface of the heat radiation belt 20 and expanding the slits in a direction perpendicular to the surface of the heat radiation belt 20.

The radiating strips 20 between the radiating pipes 10 increase the contact area of the radiator with air and the radiating windows 21 of the radiating strips 20 increase the contact area of the radiating strips 20 with air, so that the heat of the coolant can be released into the air when the air flows through the surfaces of the radiating pipes 10, the surfaces of the radiating strips 20 and the gaps at the radiating windows 21.

Since the size of the radiator as a whole is relatively limited, the height of the radiating pipe 10 and the radiating strips 20 in the height direction H will affect the flow resistance (also called working medium flow resistance) of the coolant circulating in the radiator and affect the radiating performance of the radiator.

Referring again to fig. 1, in the present embodiment, the height H1 of each heat dissipation tape 20 in the height direction H is 5.8mm to 7.3mm, and preferably, the height H1 is 6mm to 7.3 mm. Each radiating pipe 10 has a height of 1.7mm in the height direction H. Thus, one band group formed by one radiating pipe 10 and one radiating band 20 connected in the height direction H has a band pitch H2 of 7.5mm to 9mm in the height direction H, and preferably, a band pitch H2 of 7.7mm to 9 mm.

Compare in the radiator that the pipe area interval of the industry commonly used is 10mm, according to the utility model discloses a radiator can increase 10% to 20% coolant liquid circulation cross sectional area on unit height H, and then reduces flow resistance and about 26%.

Next, the specific structure of the radiating pipe 10 according to the present invention and its advantageous effect on improving the performance of the radiator will be described with reference to fig. 3.

Fig. 3 is a cross-sectional view of the radiating pipe 10 perpendicular to the length direction L. In the view of fig. 3, the radiating pipe 10 has a flat cross-section, and the dimension of the radiating pipe 10 in the thickness direction W (also referred to as the third direction) is much larger than that in the height direction H, preferably, the thickness direction W is perpendicular to both the height direction H and the length direction L.

In the present embodiment, the radiating pipe 10 is formed by bending a metal plate (preferably, an aluminum plate). The bent metal plate forms the mouthpiece 11 only at one end in the thickness direction W of the radiating pipe 10 in the cross section perpendicular to the length direction L. The sheets on both sides of the joint 11 are joined together, for example, by welding. And the bent metal plate is indented toward the inner cavity of the radiating pipe 10 in a folded manner at the middle portion in the thickness direction W, thereby forming a spacing portion 12 in the inner cavity of the radiating pipe 10, i.e., one of the two walls of the radiating pipe 10 in fig. 3, which are opposite in the height direction H, is folded toward the other wall at the middle portion to thereby form the spacing portion 12 (the upper wall located at the upper portion in fig. 3 is indented toward the lower wall located at the lower portion at the middle portion), and the spacing portion 12 abuts against the other wall and is tightly connected thereto by, for example, brazing. The partition part 12 partitions the inner cavity of the radiating pipe 10 into two chambers, the first chamber 10a and the second chamber 10b, which are independent from each other, and the above-described structure can increase the pressure-resistant capacity of the radiating pipe.

The metal plate is bent to form the structure mode of the radiating pipe with two cavities, so that the structure is simple and the structural strength is high. Since the coolant in the radiating pipe 10 applies pressure to the pipe wall toward the outside of the radiating pipe, the pressure is particularly significant in the middle of the radiating pipe 10 in the case of the radiating pipe 10 having a flat shape, so that the radiating pipe 10 tends to be spread. The strength of the bent and welded heat dissipation pipe 10 at the joint 11 is weakest, so that the joint 11 is located at the end of the heat dissipation pipe 10 in the thickness direction W, the pressure applied to the joint 11 is small, and the joint 11 is not easily cracked.

The upper and lower walls of the radiating pipe 10 are partially protruded toward the inner chamber to form a plurality of protrusions 13. The convex part 13 enables the cooling liquid flowing in the inner cavity to form turbulent flow, thereby improving the heat exchange effect.

In the present embodiment, the projections 13 are aligned in the longitudinal direction L and the thickness direction W to form an array. And, in the height direction H, each protrusion 13 does not have another protrusion directly opposite to it, so that proper turbulence can be formed in the cavity and the flow resistance of the working medium is not increased too much.

In the present embodiment, the upper and lower walls of the radiating pipe 10 are formed with 8 rows of the projections 13 aligned in the longitudinal direction L in the thickness direction W. The 2 rows of projections 13 form a set, and one set of projections 13 on each wall is spaced from the other set of projections 13 in the thickness direction W by a distance substantially equal to the dimension of the one set of projections 13 in the thickness direction W, so that the spacing of one wall has the one set of projections 13 on the other wall opposite in the height direction H.

The utility model discloses at least, one of following advantage has:

(i) the utility model discloses a radiator structure size is reasonable, and heat transfer capacity is strong, and the working medium flow resistance is little.

(ii) According to the utility model discloses a cooling tube structural strength of radiator is high.

(iii) According to the utility model discloses a cooling tube of radiator provides good turbulent flow direction for the coolant liquid.

Of course, the present invention is not limited to the above embodiments, and those skilled in the art can make various modifications to the above embodiments of the present invention without departing from the scope of the present invention.

Claims (10)

1. A high-performance radiator for an engine, comprising a radiating pipe (10) and a radiating band (20), both the radiating pipe (10) and the radiating band (20) extending along a first direction (L), the radiating pipe (10) and the radiating band (20) being alternately arranged in a second direction (H) perpendicular to the first direction (L), characterized in that,

the size of the whole formed by the adjacent one of the radiating pipes (10) and the one of the radiating strips (20) in the second direction (H) is 7.7mm to 9mm, and the size of the radiating strip (20) in the second direction (H) is 5.8mm to 7.3 mm.

2. A heat sink according to claim 1, wherein the dimension of the heat dissipation strip (20) in the second direction (H) is 6-7.3 mm.

3. A heat sink according to claim 1, wherein the heat dissipation strip (20) is wave-shaped, the dimension between adjacent crests and troughs of the heat dissipation strip (20) constituting the dimension of the heat dissipation strip (20) in the second direction (H).

4. A radiator according to claim 1, wherein the radiating pipe (10) is formed by bending a plate material, and the radiating pipe (10) has a flat shape and a maximum dimension in a third direction (W) in a cross section perpendicular to the first direction (L),

the radiating pipe (10) has only one port (11) in a cross section perpendicular to the first direction (L), and the port (11) is located at one end of the radiating pipe (10) in the third direction (W).

5. The radiator according to claim 4, wherein, in the middle of the third direction (W), one of two walls of the radiating pipe (10) opposite to each other in the second direction (H) is bent toward the other wall to form a partition (12), and the partition (12) is connected to the other wall to divide the inner cavity of the radiating pipe (10) into two chambers.

6. A radiator according to claim 1, wherein two walls of the radiating pipe (10) opposite to each other in the second direction (H) partially protrude toward the inner cavity of the radiating pipe (10) to form a plurality of protrusions (13).

7. A heat sink according to claim 6, wherein each of said projections (13) is not disposed directly opposite another of said projections (13) in said second direction (H).

8. A radiator according to claim 6, wherein 8 rows of said projections (13) are arranged on both walls of said radiating pipe (10) in a third direction (W) perpendicular to both said first direction (L) and said second direction (H).

9. A heat sink according to claim 8, wherein in the third direction (W) two protrusions (13) form one group, and two adjacent groups of protrusions (13) are spaced apart by the distance of one group of protrusions (13).

10. The radiator of any one of claims 1 to 9, wherein the radiator is a radiator for a truck internal combustion engine.

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