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CN-224202272-U - Micro-channel aluminum flat tube variable-section fractal channel structure

CN224202272UCN 224202272 UCN224202272 UCN 224202272UCN-224202272-U

Abstract

The utility model relates to the technical field of micro-channel aluminum flat tubes and discloses a micro-channel aluminum flat tube variable cross-section fractal channel structure which comprises a tube body, wherein a plurality of diversion channels are formed in the tube body at equal intervals, a plurality of air holes are formed in the front side of the top wall of the tube body at equal intervals, a first sliding groove is formed in the rear side of the inner wall of each air hole, a first spring is mounted on the inner bottom wall of each first sliding groove, a connecting block is mounted on the top end of each first spring, a rotary disc is fixedly connected to the right side of each connecting block, a plurality of first circular grooves are formed in the tube body at equal intervals, and the rotary discs are in sliding connection with the first circular grooves. In the utility model, the movement of the turntable drives the closing blade to move through the second chute and the sliding block, and meanwhile, the second sliding column slides in the third chute of the disc, so that the discs are linked, the combined movement of the closing blade adjusts the cross-sectional area of the split flow channel, a self-adaptive variable-section fractal flow path is formed, the fluid distribution and heat transfer efficiency are optimized, and the fluid resistance is reduced.

Inventors

  • WANG LI
  • WANG YIXIAO
  • Tan Lunxuan

Assignees

  • 江苏共昌新材料科技有限公司

Dates

Publication Date
20260505
Application Date
20250521

Claims (8)

  1. 1. A micro-channel aluminum flat tube variable-section fractal channel structure comprises a tube body (1) and is characterized in that a plurality of shunt channels (3) are formed in the tube body (1) at equal intervals, a plurality of air holes (4) are formed in the front side of the top wall of the tube body (1) at equal intervals, a first sliding groove (5) is formed in the rear side of the inner wall of the air hole (4), a first spring (6) is mounted on the inner bottom wall of the first sliding groove (5), a connecting block (7) is mounted on the top end of the first spring (6), a turntable (8) is fixedly connected to the right side of the connecting block (7), a plurality of circular grooves I (9) are formed in the tube body (1) at equal intervals, the turntable (8) is in sliding connection with the circular grooves I (9), a plurality of second sliding grooves (10) are formed in the rear side of the outer wall of the turntable (8) at equal intervals, a sliding block (11) is formed in the inner wall of the second sliding groove (10), a closing blade (12) is fixedly connected to the rear side of the outer wall of the sliding block (11), a second sliding groove (21) is fixedly connected to the rear side of the outer wall of the closing blade (12), a second sliding groove (21) is fixedly connected to the third sliding groove (14), a third sliding groove (13) is formed in the rear side of the turntable (14) and the turntable (13) is fixedly connected to the third sliding groove (14), the anti-blocking mechanism (2) is arranged on the front side of the top wall of the pipe body (1) at equal intervals, and the anti-blocking mechanism (2) is used for preventing the risk of blocking and scaling of the diversion channel (3).
  2. 2. The micro-channel aluminum flat tube variable cross-section fractal channel structure of claim 1, wherein the anti-blocking mechanism (2) comprises a round groove II (201), the round groove II (201) is equidistantly arranged on the front side of the outer wall of the tube body (1), a filter screen (202) is arranged in the round groove II (201), clamping grooves (203) are formed in the left side and the right side of the outer wall of the filter screen (202), sliding grooves IV (204) are formed in the left side and the right side of the inner wall of the round groove II (201), a spring II (205) is mounted on the inner bottom wall of the sliding grooves IV (204), a sliding column I (206) is fixedly connected to the top end of the spring II (205), the sliding column I (206) is clamped with the clamping grooves (203), and sliding grooves IV (207) are formed in the front side of the inner wall of the sliding grooves IV (204).
  3. 3. The micro-channel aluminum flat tube variable-section fractal channel structure according to claim 1, wherein an anti-corrosion layer (15) is arranged on the outer wall of the tube body (1).
  4. 4. The micro-channel aluminum flat tube variable cross-section fractal channel structure of claim 2, wherein buckling blocks (16) are fixedly connected to the upper end and the lower end of the front side of the outer wall of the filter screen (202).
  5. 5. The micro-channel aluminum flat tube variable cross-section fractal channel structure of claim 2, wherein a pressing block (17) is fixedly connected to the front side of the outer wall of the first sliding column (206), and the pressing block (17) is in sliding connection with the fourth sliding groove (204).
  6. 6. The micro-channel aluminum flat tube variable-section fractal channel structure according to claim 5, wherein an anti-slip pad (18) is arranged on the top wall of the pressing block (17).
  7. 7. The micro-channel aluminum flat tube variable cross-section fractal channel structure according to claim 1 is characterized in that mounting holes (19) are formed in four corners of the front side of the outer wall of the tube body (1).
  8. 8. The micro-channel aluminum flat tube variable cross-section fractal channel structure of claim 7, wherein the inner wall of the mounting hole (19) is connected with a bolt (20) in a threaded manner.

Description

Micro-channel aluminum flat tube variable-section fractal channel structure Technical Field The utility model relates to the technical field of micro-channel aluminum flat tubes, in particular to a variable-section fractal channel structure of a micro-channel aluminum flat tube. Background The micro-channel aluminum flat tube is a thin-wall porous flat tubular material which adopts a refined aluminum bar, is subjected to hot extrusion and surface zinc spraying corrosion prevention treatment, is widely applied to evaporators and condensers in automobile air conditioning systems, has better heat conduction performance compared with the traditional copper tubes and aluminum tubes, can quickly cool, and can reduce the weight and occupied space of the system. The prior art refers to a graded diffusion mode of plant veins from main veins to branch veins to micro veins, so that a channel structure presents fractal characteristics, the structure is favorable for uniform distribution and efficient transmission of fluid in the tube, the original purpose of the tube variable-section fractal channel structure is to improve the heat transfer effect, but the irregular shape of the fractal channel can lead the fluid to generate more local resistance in the flowing process, compared with the traditional regular channel, more corners, shrinkage and expansion areas exist in the fractal channel, and the fluid can generate severe flow separation and vortex phenomena in the places, so that the local resistance coefficient is increased. Disclosure of utility model In order to make up for the defects, the utility model provides a micro-channel aluminum flat tube variable cross-section fractal channel structure, which aims to solve the problem that local resistance coefficient is increased due to the fact that more corners, shrinkage and expansion areas exist in a fractal channel in the prior art. In order to achieve the purpose, the micro-channel aluminum flat tube variable cross-section fractal channel structure comprises a tube body, wherein a plurality of shunt channels are formed in the tube body at equal intervals, a plurality of air holes are formed in the front side of the top wall of the tube body at equal intervals, a first sliding groove is formed in the rear side of the inner wall of the air hole, a first spring is arranged on the inner bottom wall of the first sliding groove, a connecting block is arranged at the top end of the first spring, a turntable is fixedly connected to the right side of the connecting block, a plurality of round grooves are formed in the tube body at equal intervals, the turntable is in sliding connection with the first round groove, a plurality of second sliding grooves are formed in the rear side of the outer wall of the turntable at equal intervals, a sliding block is connected to the inner wall of the second sliding groove at equal intervals, a second sliding column is fixedly connected to the rear side of the outer wall of the sliding block, a disc is arranged on the rear side of the outer wall of the disc at equal intervals, a plurality of third sliding grooves are formed in the front side of the outer wall of the disc, the third sliding groove is in sliding connection with the second sliding column, a plurality of blocking prevention mechanisms are arranged on the front side of the tube body, and the blocking prevention mechanisms are used for preventing scaling and preventing scaling. As a further description of the above technical solution: The anti-blocking mechanism comprises a round groove II, the front side of the outer wall of the pipe body is arranged at the equal distance of the round groove II, a filter screen is arranged in the round groove II, clamping grooves are formed in the left side and the right side of the outer wall of the filter screen, a chute IV is formed in the left side and the right side of the inner wall of the round groove II, a spring II is arranged on the inner bottom wall of the chute IV, a sliding column I is fixedly connected with the top end of the spring II, the sliding column I is clamped with the clamping grooves, and a chute V is formed in the front side of the inner wall of the chute IV. As a further description of the above technical solution: An anti-corrosion layer is arranged on the outer wall of the pipe body. As a further description of the above technical solution: the upper end and the lower end of the front side of the outer wall of the filter screen are fixedly connected with buckling blocks. As a further description of the above technical solution: the front side of the outer wall of the first sliding column is fixedly connected with a pressing block, and the pressing block is in sliding connection with the sliding groove four. As a further description of the above technical solution: The top wall of the pressing block is provided with an anti-slip pad. As a further description of the above technical solution: Mounting holes are formed i