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CN-122028359-A - Aluminum alloy shell with gradual cooling function

CN122028359ACN 122028359 ACN122028359 ACN 122028359ACN-122028359-A

Abstract

The application provides an aluminum alloy shell with gradual cooling, which comprises a shell component, wherein a cavity for cooling liquid circulation is arranged in the shell component, a plurality of cooling fins for conducting heat are fixedly arranged in the cavity, a liquid inlet and a liquid outlet which are communicated with the cavity are arranged on the shell component, the cooling fins are arranged in a plurality of rows, and the number of each row of cooling fins gradually increases along the circulation direction of cooling liquid from the liquid inlet to the liquid outlet. According to the cooling liquid temperature change rule in the cavity, the gradual change type cooling fin layout is adopted, the cooling liquid is lower in temperature when entering from the liquid inlet, the heat dissipation and exchange requirements can be met by arranging the relatively sparse cooling fins at the moment, as the cooling liquid flows and absorbs heat, the temperature gradually rises, the dense cooling fins are arranged near the liquid outlet area, stronger heat dissipation capability can be provided, and the problem of heat dissipation efficiency reduction caused by the reduction of the temperature difference between the cooling liquid and the high temperature area is solved.

Inventors

  • Zhong Dingyu

Assignees

  • 深圳市同兴旺智造科技有限公司

Dates

Publication Date
20260512
Application Date
20251229

Claims (10)

  1. 1. The aluminum alloy shell with the gradual cooling function is characterized by comprising a shell component (1), wherein a cavity for cooling liquid circulation is formed in the shell component (1), a plurality of cooling fins (401) for conducting heat are fixedly arranged in the cavity, a liquid inlet (2) and a liquid outlet (3) which are communicated with the cavity are formed in the shell component (1), the cooling fins (401) are arranged in multiple rows, and the number of the cooling fins (401) in each row increases gradually along the circulation direction of cooling liquid from the liquid inlet (2) to the liquid outlet (3).
  2. 2. The aluminum alloy housing with gradual heat dissipation according to claim 1, wherein the housing assembly (1) comprises a first housing (101) and a second housing (102) arranged on the first housing (101), the chamber is located between the first housing (101) and the second housing (102), and the liquid inlet (2) and the liquid outlet (3) are both arranged on the second housing (102).
  3. 3. The aluminum alloy shell with gradual cooling according to claim 2, wherein a positioning groove (106) is formed in one surface of the first shell (101) close to the second shell (102), a connecting plate (4) is installed in the positioning groove (106), and a plurality of cooling fins (401) are connected to the connecting plate (4).
  4. 4. The aluminum alloy shell with gradual cooling according to claim 3, wherein a plurality of mounting seats (104) are fixedly arranged on the side surface of the first shell (101), and mounting holes (105) are formed in the mounting seats (104).
  5. 5. The aluminum alloy housing with gradual heat dissipation according to claim 1, wherein the extending direction of the heat sink (401) is perpendicular to the flowing direction of the cooling liquid, and the thickness d of the mounting base (104) satisfies the calculation formula d=λ×Δt/(q×103); Wherein lambda is the heat conductivity coefficient of the aluminum alloy material, delta T is the maximum temperature difference at two sides of the radiating fin (401), and q is the surface heat flux density of the radiating fin (401).
  6. 6. The aluminum alloy housing with gradual cooling according to claim 1, wherein the distribution density gradient of the cooling fin (401) is continuously gradual, and the density ρ (x) of the cooling fin (401) at any position x along the cooling liquid flow path satisfies the calculation formula ρ (x) =ρ 1 +(ρ 2 -ρ 1 ) × (x/L); Wherein ρ 1 is the density of the cooling fin (401) at the liquid inlet (2), ρ 2 is the density of the cooling fin (401) at the liquid outlet (3), L is the length of the chamber along the flowing direction, and x is the distance between the position and the liquid inlet (2).
  7. 7. The aluminum alloy shell with gradual cooling according to claim 1, wherein the distribution density gradient of the cooling fin (401) is stepwise gradual, and is divided into at least three areas including a liquid inlet section, a middle section and a liquid outlet section along the flowing direction of the cooling liquid, wherein the densities of the cooling fin (401) in the three areas satisfy ρ 3 =2ρ 1 、ρ 2 =1.5ρ 1 , wherein ρ 1 is the liquid inlet section density, ρ 2 is the middle section density, and ρ 3 is the liquid outlet section density.
  8. 8. The aluminum alloy shell with gradual cooling according to claim 1, wherein the cooling fins (401) are distributed gradually, the area close to the liquid inlet (2) is set to be an area A, the area close to the liquid outlet (3) is set to be an area B, the distribution density of the cooling fins (401) in the area A is DA, the distribution density of the cooling fins (401) in the area B is DB, and DB > DA is met, wherein the calculation formula of the distribution density D of the cooling fins (401) is D=S/n; Where n is the number of fins (401) per unit area and S is the unit area.
  9. 9. The aluminum alloy shell with gradual cooling according to claim 1, wherein threaded interfaces are arranged at the inner walls of the liquid inlet (2) and the liquid outlet (3).
  10. 10. The aluminum alloy shell with gradual cooling according to claim 1, wherein the inner wall of the cavity is coated with a graphene heat-conducting coating, and the thickness t of the graphene heat-conducting coating satisfies the calculation formula of t=λ a ×ΔT l /(λi×q); Wherein lambda a is the heat conductivity coefficient of the aluminum alloy, lambda i is the heat conductivity coefficient of the coating, delta T l is the temperature difference between two sides of the coating, and q is the heat flux density of the wall surface.

Description

Aluminum alloy shell with gradual cooling function Technical Field The invention relates to the technical field of aluminum alloy shells, in particular to an aluminum alloy shell with gradual cooling. Background In many fields, if heat generated in the running process of equipment cannot be effectively dissipated, the working stability, the running efficiency and even the service life of the equipment can be seriously influenced, aluminum alloy becomes a preferable material for manufacturing a heat dissipation shell of the equipment by virtue of excellent heat conduction performance, light weight and good processing formability, and in the scheme of adopting the aluminum alloy shell for heat dissipation in the market, a cooling liquid circulation cavity is arranged in the shell, cooling fins are arranged in the cavity, and heat conducted by the cooling fins is taken away by the flow of cooling liquid, so that heat dissipation is realized; However, most of the cooling fins in the cavity in the prior art adopt a design mode of uniform distribution, the design does not fully consider the temperature change rule of the cooling liquid in the circulation process, namely when the cooling liquid enters the cavity from the cavity (2), the temperature is lower, a larger temperature difference exists between the cooling liquid and a high-temperature area generated by equipment, at the moment, the heat dissipation and exchange requirement is relatively lower, as the cooling liquid flows in the cavity, the temperature gradually rises, especially approaches to the area (3), the temperature of the cooling liquid is obviously raised, the temperature difference between the cooling liquid and the high-temperature area is reduced, the heat dissipation and exchange efficiency is reduced, and stronger heat dissipation capacity is required at the moment. Therefore, we make improvements to this and propose an aluminum alloy shell with gradual heat dissipation. Disclosure of Invention The invention provides an aluminum alloy shell with gradual cooling, which comprises a shell component, wherein a cavity for cooling liquid circulation is arranged in the shell component, a plurality of cooling fins for conducting heat are fixedly arranged in the cavity, a liquid inlet and a liquid outlet which are communicated with the cavity are arranged on the shell component, the cooling fins are arranged in a plurality of rows, and the number of each row of cooling fins increases gradually along the circulation direction of cooling liquid from the liquid inlet to the liquid outlet. As a preferable technical scheme of the application, the shell assembly comprises a first shell and a second shell arranged on the first shell, the cavity is positioned between the first shell and the second shell, and the liquid inlet and the liquid outlet are both arranged on the second shell. As a preferable technical scheme of the application, a positioning groove is formed in one surface of the first shell, which is close to the second shell, a connecting plate is arranged in the positioning groove, and a plurality of radiating fins are connected to the connecting plate. As a preferable technical scheme of the application, a plurality of mounting seats are fixedly arranged on the side face of the first shell, and mounting holes are formed in the mounting seats. As a preferable technical scheme of the application, the extending direction of the radiating fin is perpendicular to the flowing direction of the cooling liquid, and the thickness d of the mounting seat meets the calculation formula of d=lambda×delta T/(q×103); Wherein lambda is the heat conductivity coefficient of the aluminum alloy material, delta T is the maximum temperature difference at two sides of the radiating fin, and q is the surface heat flux density of the radiating fin. As a preferable technical scheme of the application, the distribution density gradient of the cooling fin is continuously gradual, and the density ρ (x) of the cooling fin at any position x along the cooling liquid flowing path satisfies a calculation formula ρ (x) =ρ 1+(ρ2-ρ1) × (x/L); Wherein ρ 1 is the fin density at the liquid inlet, ρ 2 is the fin density at the liquid outlet, L is the length of the chamber along the flow direction, and x is the distance between the position and the liquid inlet. As a preferable technical scheme of the application, the distribution density gradient of the cooling fin is stepwise gradual, and is at least divided into three areas of a liquid inlet section, a middle section and a liquid outlet section along the flowing direction of cooling liquid, wherein the density of the cooling fin in the three areas meets rho 3=2ρ1、ρ2=1.5ρ1, rho 1 is the density of the liquid inlet section, rho 2 is the density of the middle section and rho 3 is the density of the liquid outlet section. According to the technical scheme, the cooling fins are distributed in a gradual change mode, the area close to the li