CN211626225U

CN211626225U - Heat-transfer pipe heat radiation structure

Info

Publication number: CN211626225U
Application number: CN201922471248.7U
Authority: CN
Inventors: 张金广; 刘士群
Original assignee: Shenzhen Shanyuan Electronic Corp
Current assignee: Shenzhen Shanyuan Electronic Corp
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-10-02
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a heat-transfer pipe heat radiation structure, wherein heat-transfer fins are arranged on the heat-transfer pipe and are arranged at intervals along the length direction of the heat-transfer pipe; the heat radiating fins and the heat transfer pipe are of an integrated structure, and the heat radiating fins are formed by shoveling the outer wall of the heat transfer pipe; each radiating fin is also provided with a window and a sub-fin, and the sub-fins are connected with the inner wall of the window; the sub-fins and the windows are formed by one-time shoveling, the window is formed by the material removing part, and the shoveled metal entity forms the sub-fins. The utility model discloses a radiating fin utilizes the spiller to carry out the shovel and cuts formation on the heat transfer pipe outer wall, thoroughly eliminates thermal contact resistance, promotes heat dispersion by a wide margin.

Description

Heat-transfer pipe heat radiation structure

Technical Field

The utility model belongs to the technical field of heat abstractor, concretely relates to heat-transfer pipe heat radiation structure.

Background

At present, most of household air conditioner condensers are of a tube sheet type structure, radiating fins are arranged on heat transfer tubes, the heat transfer tubes are copper tubes, the fins are aluminum fins, the heat transfer tubes are connected with the fins through expansion tubes, bent tubes and straight heat transfer tubes penetrating the fins are connected together through brazing at the two ends of the condenser to form a sealing flow channel, a refrigerant enters through an inlet main tube and flows out through an outlet main tube, and heat exchange between the refrigerant and air is achieved.

The tube expansion type radiator needs to be made into a square shape due to process limitation, is suitable for inserting a tube expansion head into a copper tube to enable the copper tube and fins to be in tension contact, and meanwhile, due to thermal contact resistance, the heat transfer performance is greatly reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a heat-transfer pipe heat radiation structure.

The utility model discloses a realize through following technical scheme:

a heat transfer tube radiating structure is provided with radiating fins which are arranged at intervals along the length direction of a heat transfer tube; the heat radiating fins and the heat transfer pipe are of an integrated structure, and the heat radiating fins are formed by shoveling the outer wall of the heat transfer pipe;

each radiating fin is also provided with a window and a sub-fin, and the sub-fins are connected with the inner wall of the window; the sub-fins and the windows are formed by one-time shoveling, the window is formed by the material removing part, and the shoveled metal entity forms the sub-fins.

In the above technical solution, the heat transfer pipe is a square flat pipe with a rectangular cross section.

In the technical scheme, the heat transfer pipe is internally provided with a flow passage for the air conditioning refrigerant to flow through. Further, there are 4 flow channels in the heat transfer tube.

In the technical scheme, the window is rectangular, the sub-fins are also rectangular, and the top edges of the sub-fins and the top edge of the window are connected into a whole.

In the above technical solution, two pairs of windows and sub-fins are preferably disposed on each heat dissipation fin.

The manufacturing method of the heat-transfer pipe radiating structure comprises the following steps:

the method comprises the following steps: the aluminum alloy bar is formed by pultrusion to form a square flat tube, and enough wall thickness allowance is reserved on the surface to be processed (shoveled) of the square flat tube so as to be convenient for manufacturing the radiating fin and the sub-fin by subsequent shoveling.

Step two: firstly, carrying out primary shoveling on the square flat tube to form a sub-fin and a groove, wherein the groove is a default material area formed after the sub-fin is shoveled; and then, carrying out secondary shoveling to form radiating fins, wherein the grooves just form hollow windows after the radiating fins are shoveled.

Step three: and D, processing the square flat tubes one by one along the length direction according to the shoveling mode in the step II.

The utility model discloses an advantage and beneficial effect do:

1. the utility model discloses a radiating fin utilizes the spiller to carry out the shovel and cuts formation on the heat transfer pipe outer wall, thoroughly eliminates thermal contact resistance, promotes heat dispersion by a wide margin.

2. And each radiating fin is provided with a window and a sub-fin, the sub-fins and the windows are formed by one-time shoveling, the part from which the material is removed forms the window, and the shoveled metal entity forms the sub-fins. On one hand, the window forms a transverse (heat transfer tube length direction) airflow channel, so that the air fluidity among the radiating fins is increased, and the heat dissipation is facilitated; meanwhile, on the other hand, the window of the radiating fin is not formed by adopting a method of completely removing materials, but is formed by scraping, the part of the removed materials forms the window, and the metal entity which is scooped up forms the sub-fin, so that the area of the whole radiating fin is not reduced, but the radiating area is increased to some extent: namely, 3 side surfaces of the sub-fins and 3 side surfaces of the window are radiating surfaces which are formed by being additionally arranged after being shoveled, so that the radiating efficiency can be improved by increasing the radiating area.

Drawings

Fig. 1 is a schematic perspective view of a heat dissipation structure of a heat transfer tube according to the present invention.

Fig. 2 is a front view of the heat dissipating structure of the heat transfer tube of the present invention.

Fig. 3 is a partially enlarged schematic view of fig. 2.

Wherein:

1: heat transfer pipe, 2: radiating fin, 3: subfin, 4: and (4) a window.

For a person skilled in the art, other relevant figures can be obtained from the above figures without inventive effort.

Detailed Description

In order to make the technical field person understand the solution of the present invention better, the technical solution of the present invention is further described below with reference to the specific embodiments.

Example one

Referring to the attached drawing 1, the heat transfer pipe heat dissipation structure comprises a heat transfer pipe 1, wherein the heat transfer pipe is a square flat pipe with a rectangular section, heat dissipation fins 2 are arranged on the upper surface and the lower surface of the heat transfer pipe, and the heat dissipation fins 2 are arranged at equal intervals along the length direction of the heat transfer pipe; the radiating fins and the heat transfer pipe are of an integrated structure, and the radiating fins are formed by shoveling the outer wall of the heat transfer pipe.

The heat transfer pipe is internally provided with a flow passage 1-1 for the air conditioning refrigerant to flow through. Further, there are 4 flow channels in the heat transfer tube.

Example two

On the basis of the first embodiment, further, each heat dissipation fin is further provided with a window 4 and a sub-fin 3, and one side of the sub-fin 3 is connected with the inner wall of the window 4. The sub-fins and the windows are formed by one-time shoveling, namely after shoveling, the material-removed part forms the window 4, and the shoveled metal entity forms the sub-fins 3.

Furthermore, the window is rectangular, the sub-fins are also rectangular, and the top edges of the sub-fins are connected with the top edge of the window into a whole.

Further, two pairs of windows and sub-fins are preferably provided on each fin.

EXAMPLE III

Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an upper and a lower orientation. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.

The invention has been described above by way of example, and it should be noted that any simple variants, modifications or other equivalent substitutions by a person skilled in the art without spending creative effort may fall within the scope of protection of the present invention without departing from the core of the present invention.

Claims

1. A heat-transfer pipe heat radiation structure is characterized in that: the heat transfer pipe is provided with heat dissipation fins which are arranged at intervals along the length direction of the heat transfer pipe; the heat radiating fins and the heat transfer pipe are of an integrated structure, and the heat radiating fins are formed by shoveling the outer wall of the heat transfer pipe;

2. The heat transfer pipe heat dissipation structure according to claim 1, wherein: the heat transfer pipe is a square flat pipe with a rectangular section.

3. The heat transfer pipe heat dissipation structure according to claim 1, wherein: the heat transfer tube has a flow passage therein.

4. The heat transfer pipe heat dissipation structure according to claim 3, wherein: the heat transfer pipe is internally provided with a plurality of flow channels.

5. The heat transfer pipe heat dissipation structure according to claim 1, wherein: the window is rectangular, the sub-fins are also rectangular, and the top edges of the sub-fins and the top edges of the window are connected into a whole.

6. The heat transfer pipe heat dissipation structure according to claim 1, wherein: two pairs of windows and sub-fins are arranged on each radiating fin.