WO2017114089A1

WO2017114089A1 - Heat dissipation device

Info

Publication number: WO2017114089A1
Application number: PCT/CN2016/108211
Authority: WO
Inventors: 周国荣; 董洪波; 邓小亮; 罗峰
Original assignee: 江西鑫田车业有限公司
Priority date: 2015-12-29
Filing date: 2016-12-01
Publication date: 2017-07-06
Also published as: CN105605942A

Abstract

A heat dissipation device, comprising a heat dissipation core (100), the heat dissipation core (100) comprising two main fins (1) arranged in parallel opposite one another and a plurality of heat dissipation units (3) mounted between the main fins (1), a plurality of tube holes corresponding to the heat dissipation units (3) being disposed in each main fin (1), each heat dissipation unit (3) comprising a finned tube (31), and the two ends of each finned tube (31) respectively being connected to a corresponding tube hole (4), the finned tube (31) comprising a heat dissipation tube (311) made of aluminium material and fins (312) integrally formed with the heat dissipation tube (311).

Description

heat sink

Technical field

The utility model relates to the field of heat sinks, and more particularly to an automobile radiator.

Background technique

At present, heavy-duty aluminum radiators usually need to weld pipes and fins. However, this welding method has poor structural strength, and it is easy to weld fins and tubes, fins fall, and pipes and fins are burnt. Problems such as bad, deformation of the pipe, etc., and the pipe is easily broken when used, which may cause the water tank to leak.

Utility model content

The purpose of the utility model is to provide a radiator with a high service life water tank.

In order to achieve the above utility model, the present invention provides a heat sink, the heat sink includes a heat dissipation core body, and the heat dissipation core body includes two parallel opposing main pieces and a plurality of heat dissipations installed between the main pieces. a unit, each of the main pieces defines a plurality of tube holes respectively corresponding to the heat dissipating unit, each of the heat dissipating units includes a fin tube, and both ends of each fin tube are respectively connected with corresponding tube holes, The fin tube includes a heat pipe made of aluminum and fins integrally formed with the heat pipe.

As an improvement of the heat sink of the present invention, the heat pipe is an aluminum profile extruded by a die, and the fin is formed by using a blade when the heat pipe is formed.

As an improvement of the heat sink of the present invention, the heat dissipation pipe is an aluminum profile extruded by a mold, and the fin is formed by scooping out the heat pipe when the heat pipe is formed.

As an improvement of the heat sink of the present invention, the fins are substantially wavy.

As an improvement of the heat sink of the present invention, the heat pipe is generally rectangular tubular with a length to width ratio of 3:1.

As an improvement of the heat sink of the present invention, the inner diameter shape of the pipe hole of the main piece is consistent with the outer diameter shape of the end portion of the heat pipe to facilitate welding.

As an improvement of the heat sink of the present invention, the tube holes of the main piece are arranged in a single row at equal intervals in a horizontal direction, and the long sides of the tube holes are parallel to the short sides of the main piece.

As an improvement of the heat sink of the present invention, the heat pipe comprises a plurality of channels having a substantially rectangular cross section, and a partition wall is disposed between each two adjacent channels to separate the two channels.

As an improvement of the heat sink of the present invention, the heat pipe has a width of about 68 mm and a height of about 7 mm.

As an improvement of the heat sink of the present invention, the main piece is a plate-shaped structure having a U-shaped cross section, and the main piece includes a main plate portion and two long edges from the main plate portion respectively to the same side The two side plate portions are extended, and the intersection of the two side plates and the main plate portion is rounded, and the pipe hole is opened in the main plate portion.

As an improvement of the heat sink of the present invention, the heat sink further includes a parallel row of side plates vertically assembled on both sides of the two main pieces, and the heat dissipating unit is disposed on the two side plates and the main piece Enclosed in the containment space.

Compared with the prior art, the heat dissipating tube of the present invention uses a blade to shovel the fin when extruding with a mold, so that the heat dissipating tube and the fin have an integrated structure, and the integrated structure is omitted. The welding process in the processing project is carried out, so that the assembly process is simplified and more firm, and it is not easy to cause the fins to fall, the heat pipe and the fins are burned out, the heat pipe is deformed, and the heat pipe is broken during use, causing the water tank to leak.

DRAWINGS

The heat sink of the present invention and its beneficial effects will be described in detail below with reference to the accompanying drawings and specific embodiments.

Figure 1 is a perspective assembled view of the heat sink of the present invention.

Figure 2 is a front elevational view of the heat sink of Figure 1.

FIG. 3 is a schematic structural view of the heat dissipation core body of FIG. 1. FIG.

Figure 4 is an enlarged view of the structure of the circle E1, E2 of Figure 3.

Figure 5-a1 is a top plan view of the main piece of Figure 1.

Figure 5-a2 is a front view of the main piece of Figure 1.

Figure 5-a3 is a side view of the main piece of Figure 1.

Figure 5-a4 is a cross-sectional enlarged view of the main sheet of Figure 5-a.

Figure 5-a5 is an enlarged view of the tube hole of the main piece in Figure 5-a2.

Figure 6-b1 is a side view of the finned tube of Figure 1.

Figure 6-b2 is a top plan view of the finned tube of Figure 1.

Figures 7-c1 and 7-c2 are cross-sectional views of the finned tube of Figure 6-b2 taken along A-A.

detailed description

In order to make the objects, technical solutions and beneficial technical effects of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to FIG. 1 to FIG. 4 , the utility model provides a heat sink, which is a plate fin type heat sink, and has a heat dissipating core body 100 and a water inlet chamber 200 at the two ends of the heat dissipating core body 100 and water. Room 300. The heat dissipating core 100 includes two main plates 1 disposed opposite to each other, and two parallel plates 2 vertically assembled between the two main plates 1 and vertically assembled with the main plate 1 and the side plates 2 6. The tie rod 4 surrounding the cover plate 6 and the side plate 2, a plurality of locking components 5 for fixing the tie rod 4, and a plurality of vertical main pieces 1 fixed to the heat dissipation unit 3 between the two side plates 2, The heat radiating unit 3 is housed in a housing space surrounded by the main piece 1, the side plate 2, and the cover plate 4. The tie rod 4 is fixed to the two side plates 2 by the locking assembly 5 to strengthen the locking of the heat dissipation core 100.

The side plate 2 is provided with a sinking groove 21 for receiving the pull rod 4 in a fixing area of the pull rod 4. The locking assembly 5 includes four M6 screws 51 for fixing the sinking slots 21 and a strap 6 for use with the screws 51.

Referring to FIG. 5, each of the main sheets 1 is provided with a plurality of substantially rectangular tube holes 11 corresponding to the heat dissipating unit 3, and the tube holes 11 are soldered to each of the heat dissipating units 3 by means of argon arc welding. The tube hole 11 is also in communication with the inlet and

outlet water chambers

200, 300, so that water of the

water inlet chambers

200, 300 can enter the heat dissipation unit 3 through the tube hole 11 and the tube from the other end of the heat dissipation unit 3 The holes 11 are discharged to be discharged to the outlet chamber. The main sheet 1 has a plate shape with a cross section of "U" shape, and includes a main plate portion 12 and side plate portions 13 extending from one side of the long side of the main plate 12 to one side, the main plate portion 12 and The intersection of the side panel portions 13 is treated as a circular chamfer. The tube holes 11 are arranged in a single row at equal intervals in the horizontal direction on the main plate portion 12, and the distance between the center lines of each pair of adjacent tube holes 11 is equal. The long side of the tube hole 11 is parallel to the short side of the main piece. Round holes are formed at the four corners of each of the tube holes 11. Each of the tube holes 11 is also provided with a flange 14 at the periphery thereof.

Referring to FIGS. 6-7, each of the heat dissipating units 3 includes a finned tube 31 that communicates with the tube holes 11 at both ends. The fin tube 31 includes a rectangular tubular heat dissipation tube 311 of an aluminum profile extruded by a mold, and wave-shaped fins 312 formed on both sides of the heat dissipation tube 311. A plurality of channels 3111 are defined in the heat pipe 311, and a partition wall 3112 is disposed between the plurality of channels 3111 to separate the two adjacent channels 3111. The outer diameters of the two ends of the heat pipe 31 are kept corresponding to the inner diameter of the pipe hole 11 to facilitate the welding of the two. The heat pipe 311 is used to shovel the fins 312 by a blade when being extruded by a die, so that the heat pipe 311 and the fins 312 have an integrated structure. In the present embodiment, the fins 312 extend in a horizontal direction in a wave shape. The wavy shape can effectively improve the heat dissipation area, thereby saving fuel consumption, and can also improve the overall strength of the heat sink, increase the service life of the heat sink, and reduce the water leakage rate.

Referring to FIG. 1 to FIG. 7 , in the present embodiment, the height A of the entire heat dissipation core 100 is 810±2 mm, the width B is 721 mm, and the height C is 68 mm. The two tie rods 4 are symmetrically distributed with respect to the center line of the heat dissipation core 100, and the distance D from the center line is 210 mm. The main plate portion 12 has a width B1 of 82 mm, a length A1 of 702 ± 0.1 mm, and a thickness C2 of 5 mm. The length of the side plate portion 13 is the same as the length A1 of the main plate portion 12, and the width C1 of the side plate portion 13 is 10 mm. The number of the tube holes 11 is 37, and the distance D2 between the center lines of each pair of adjacent tube holes 11 is 19.5±0.05 mm. The distance D1 between the center lines of the outermost two tube holes 11 is 702 ± 0.1 mm. The intersection of the main plate portion 12 and the side plate portion 13 is processed into a circular arc chamfer R1 having a radius of 1.5 m. Rounded corners R2 having a radius of 0.5 mm are provided at the four corners of the tube hole 11. The inner diameter of the tube hole 11 in the longitudinal direction is G1 of 68.5 ± 0.2 mm, the inner diameter H1 of the short side direction is 7.5 ± 0.1 mm, and the ratio of the long inner diameter G1 of the tube hole 11 to the short inner diameter H1 is 3:1.

The fin tube 31 has a length A3 of 818±0.5 mm, a width B3 of 68±0.05 mm, and a height of C3 of 7±0.05 mm. The fins 312 have a length B4 of 65 mm, a height C5 of 6 mm, a thickness A5 of 0.25 mm, and a spacing between each two adjacent fins 312 of A4 of 1.5 mm, which is close to the outer two fins 312 and the The end portion distance A6 of the finned tube 31 is 12 mm. The height C4 of the heat dissipation pipe 311 is 7±0.05 mm, and the wall thickness C6 of the heat dissipation pipe 311 is 0.5±0.05 mm, and the four corners thereof are rounded. The width B5 of the channel 3111 is 10.75 mm, and the thickness B6 of the partition wall 3112 is 0.5 mm. The size of the fin tube 31 of the present embodiment is not unique and can be adjusted according to a specific application environment, and the size of the tube hole 11 of the main sheet 1 corresponds to the size of the heat dissipation tube 311 of the fin tube 31. The size of the main piece 1 and the spacing of each two adjacent tube holes 11 can be adjusted according to the number and size of the fin tubes 31, and the size of the side plates 2, the cover plate 6 and the tie rod 4 also follow the main The size of the sheet 1 is adjusted accordingly to ensure the stability of the heat sink 100.

The heat dissipating tube 311 of the present invention uses a blade to shovel the fin 312 when being extruded by a mold, so that the heat dissipating tube 311 and the fin 312 have an integrated structure. This one-piece structure eliminates the welding process in the processing project, simplifies the assembly process, and the traditional heat-dissipating tube and the fins are welded together, and the integrated structure is more firm and less prone to fins. Falling, the heat pipe and the fins are burned out, the heat pipe is deformed, and the heat pipe is broken during use, causing water tank leakage, etc., so it is more economical and practical.

The above embodiments may be modified and modified as appropriate by those skilled in the art in light of the above disclosure. Therefore, the present invention is not limited to the above disclosure And the specific embodiments of the present invention are also intended to be within the scope of the appended claims. In addition, although the specific terms are used in the specification, these terms are merely for convenience of description and do not constitute any limitation to the present invention.

Claims

A heat sink includes a heat dissipating core body, and the heat dissipating core body includes two parallel opposing main pieces and a plurality of heat dissipating units mounted between the main pieces, each of the main pieces opening a plurality of corresponding heat dissipating units Each of the heat dissipating units includes a finned tube, and each end of each finned tube is respectively connected with a corresponding tube hole, wherein the finned tube comprises an aluminum heat pipe and a joint A fin formed integrally with a heat pipe.
The heat sink according to claim 1, wherein the heat dissipating tube is an aluminum profile extruded by a mold, and the fin is formed by scooping out the heat dissipating tube when the heat dissipating tube is formed.
The heat sink according to claim 2, wherein said fins are substantially wavy.
The heat sink according to claim 3, wherein said heat dissipating tube has a rectangular tubular shape with a length to width ratio of 3:1.
The heat sink according to claim 4, wherein the inner diameter of the tube hole of the main piece is identical to the outer diameter of the end portion of the heat pipe to facilitate welding.
The heat sink according to claim 5, wherein the tube holes of the main sheets are arranged in a single row at equal intervals in a horizontal direction, and the long sides of the tube holes are parallel to the short sides of the main sheet.
The heat sink according to claim 6, wherein said heat dissipating tube comprises a plurality of substantially rectangular cross-sectional passages, and said two adjacent passages are provided with partition walls to separate said two passages.
The heat sink according to claim 5, wherein said heat pipe has a width of about 68 mm and a height of about 7 mm.
The heat sink according to claim 1, wherein the main piece is a plate-shaped structure having a U-shaped cross section, and the main piece includes a main plate portion and two long edges from the main plate portion respectively The two side plate portions extending toward the same side surface are rounded at the intersection of the two side plates and the main plate portion, and the pipe holes are opened in the main plate portion.
The heat sink according to claim 1, wherein the heat sink further comprises a parallel pair of side plates vertically assembled on both sides of the two main pieces, and the heat dissipating unit is disposed on the two side plates. And the main film Enclosed in the containment space.