CN210486030U

CN210486030U - Micro-channel radiator

Info

Publication number: CN210486030U
Application number: CN201921140900.0U
Authority: CN
Inventors: 梁立群; 王运占; 张志勇; 王雷斌; 梁朔生
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2020-05-08
Anticipated expiration: 2029-07-19

Abstract

The utility model discloses a micro-channel radiator, which comprises a plurality of micro-channel radiating tubes and connecting bent tubes; the microchannel heat dissipation tube comprises an outer tube and an inner tube, the outer tube is sleeved outside the inner tube, a gap is formed between the inner tube and the outer tube, heat dissipation fins are arranged on the outer surface of the outer tube, two ends of the outer tube are respectively provided with an inflow port and an outflow port, the outer tubes are distributed at intervals, the inflow ports and the outflow ports of the two adjacent outer tubes are opposite, a connecting bent tube is connected to the inflow ports and the outflow ports of the two adjacent outer tubes, two ends of the inner tube are plugged, a plurality of separation strips are arranged between the inner tube and the outer tube, and the separation strips separate the gap. The micro-channel design of the utility model increases the heat dissipation area and heat dissipation capacity, and improves the heat dissipation efficiency; the radiating fins are integrally formed on the outer pipe wall in an extruding mode, so that thermal contact resistance is eliminated, and radiating performance and radiating efficiency are improved.

Description

Micro-channel radiator

Technical Field

The utility model relates to a heat abstractor technical field especially relates to a microchannel radiator.

Background

On the existing air conditioners and central air conditioners, the radiator mostly adopts a copper pipe and aluminum fins to realize the functions, but the radiator has large volume and weight, high cost and poor radiating effect; the radiating fins are brazed through secondary processing, thermal contact resistance exists, radiating performance is affected, operation is complex, and processing efficiency is low; in addition, in the existing microchannel product, the microchannel formed by one-time extrusion cannot be below 0.1mm in process, the heat dissipation efficiency is difficult to further improve, and the application range is limited.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a microchannel radiator to above-mentioned prior art not enough.

In order to solve the above problems, the utility model adopts the following technical proposal:

a micro-channel radiator comprises a plurality of micro-channel radiating pipes and connecting bent pipes; the microchannel cooling tube includes outer tube and inner tube, the outer pipe box is located the inner tube is outside, be provided with the clearance between inner tube and the outer tube, be provided with radiating fin on the surface of outer tube, the both ends of outer tube are provided with inflow entrance and egress opening respectively, and are a plurality of interval distribution between the outer tube, adjacent two the fluid flow direction is opposite in the outer tube, connecting bend connects in adjacent two the inflow entrance and the egress opening of outer tube, the shutoff of inner tube both ends, evenly be provided with a plurality of parting beads between inner tube and the outer tube, the parting bead will clearance between inner tube and the outer tube is separated and is formed a plurality of microchannels.

Furthermore, the separation strips are arranged in a straight line along the axial direction of the inner pipe.

Furthermore, the separation strip is arranged along the axial direction of the inner pipe in a thread shape.

Further, the radiating fins are arranged linearly along the axial direction of the outer tube.

Further, the heat dissipation fins and the outer tube are integrally formed.

Further, the length of the inner tube is shorter than the length of the outer tube.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:

the micro-channel is formed between the outer pipe and the inner pipe of the middle micro-channel radiating pipe, the heat radiating area is increased due to the design of the micro-channel, the heat radiating efficiency is improved, the distance of the micro-channel can be adjusted from 0.05mm to 3mm according to the requirement, the size adjusting range is wider, and the market application range is wider; the separation strips between the outer pipe and the inner pipe can be arranged in a thread shape, so that the heat dissipation medium can flow spirally, a relatively dense rotational flow is formed, and the heat dissipation efficiency is improved; because the two ends of the inner tube are blocked, the heat dissipation medium flows through the micro-channel, the contact area is increased, and the heat dissipation efficiency is improved; the utility model discloses well radiating fin extrudes integrated into one piece on the outer tube wall, has eliminated thermal contact resistance, has improved heat dispersion and radiating efficiency, and radiating fin's extrusion can be as required, and adjustment thickness, width, length shape etc. even, and integrated into one piece's radiating fin processing is simple, and production cycle shortens greatly, reduction in production cost, and long service life, the utility model discloses select to use the aluminum alloy on whole selected materials, have the uniformity, it is more convenient on the messenger retrieves.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a perspective view of a first embodiment of the microchannel heat pipe of the present invention;

FIG. 3 is a left side view of the first embodiment of the microchannel radiator of the present invention;

FIG. 4 is a cross-sectional view of a first embodiment of the microchannel heat pipe of the present invention;

FIG. 5 is a schematic view of the inner tube structure in the first embodiment of the present invention;

fig. 6 is a schematic view of an inner tube structure in a second embodiment of the present invention.

In the figure: 1. a microchannel heat dissipation tube; 11. an outer tube; 12. an inner tube; 13. a heat dissipating fin; 14. a dividing strip; 15. a microchannel; 2. and connecting the bent pipe.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1-5, a first embodiment of a microchannel heat sink of the present invention includes a plurality of microchannel heat pipes 1 and a plurality of connecting bent pipes 2; the microchannel heat dissipation tube 1 comprises an outer tube 11 and an inner tube 12, the outer tube 11 is sleeved outside the inner tube 12, a gap is arranged between the inner tube 12 and the outer tube 11, the gap can be adjusted from 0.05mm to 3mm according to requirements, the adjustment range is wide, heat dissipation fins 13 are arranged on the outer surface of the outer tube 11, the heat dissipation fins 13 are arranged along the axial direction of the outer tube 11 in a straight line manner, the heat dissipation fins are extruded and integrally formed on the wall of the outer tube 11, the contact thermal resistance is eliminated, the heat dissipation performance and the heat dissipation efficiency are improved, the two ends of the outer tube 11 are respectively provided with an inflow port and an outflow port, a plurality of the outer tubes 11 are distributed at intervals, the flow directions of the fluid in the outer tubes 11 are opposite, namely adjacent two the flow directions of the inflow port and the outflow port of the outer tube 11 are, the two ends of the inner tube 12 are sealed, a plurality of separating strips 14 are uniformly arranged between the inner tube 12 and the outer tube 11, the separating strips 14 are linearly arranged along the axial direction of the inner tube 12, and the separating strips 14 separate a gap between the inner tube 12 and the outer tube 11 to form a plurality of microchannels 15. The two ends of the inner tube 12 are plugged, so that the heat dissipation medium can flow through the micro-channel 15, the contact area is increased, and the heat dissipation efficiency is improved.

Further, as shown in fig. 6, it is the structure of the inner tube 12 in the second embodiment of the present invention, the separation strip 14 is along the axial direction of the inner tube 12 is in a thread shape, so that the medium can flow spirally, a relatively dense rotational flow is formed, and the heat dissipation efficiency is further improved.

Further, the length of the inner tube 12 is shorter than that of the outer tube 11, which facilitates the connection of the connecting elbow 2 with the outer tube 11 and also facilitates the circulation of the medium.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims

1. A microchannel radiator is characterized by comprising a plurality of microchannel radiating pipes (1) and connecting bent pipes (2); the microchannel radiating pipe (1) comprises an outer pipe (11) and an inner pipe (12), the outer pipe (11) is sleeved outside the inner pipe (12), a gap is arranged between the inner pipe (12) and the outer pipe (11), the outer surface of the outer pipe (11) is provided with radiating fins (13), both ends of the outer pipe (11) are respectively provided with an inflow port and an outflow port, the outer pipes (11) are distributed at intervals, the flow directions of the fluids in the two adjacent outer pipes (11) are opposite, the connecting bent pipe (2) is connected with the inflow port and the outflow port of two adjacent outer pipes (11), two ends of the inner tube (12) are sealed, a plurality of separating strips (14) are uniformly arranged between the inner tube (12) and the outer tube (11), the separation strip (14) separates the gap between the inner tube (12) and the outer tube (11) to form a plurality of microchannels (15).

2. A microchannel heat sink according to claim 1, wherein the dividing strips (14) are arranged in a straight line in the axial direction of the inner tube (12).

3. A microchannel heat sink according to claim 1, wherein the dividing strips (14) are arranged in a screw thread shape in the axial direction of the inner tube (12).

4. A microchannel heat sink according to claim 1, wherein the heat dissipating fins (13) are arranged linearly in the axial direction of the outer tube (11).

5. A microchannel heat sink according to claim 1, wherein the heat dissipating fins (13) are integrally formed with the outer tube (11).

6. A microchannel heat sink according to claim 1, wherein the length of the inner tube (12) is shorter than the length of the outer tube (11).