Aluminum alloy radiator
By installing multiple internal heat absorbing fins and external heat sinks inside and outside the aluminum alloy radiator tube, and optimizing their shape and distribution, the problem of low heat dissipation speed of existing aluminum alloy radiators is solved, significantly improving heat absorption and heat dissipation efficiency The contact area with the air achieves more efficient heat transfer and heat dissipation effects.
Patent Information
- Application Number
- CN202323572161.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-26
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2033-12-26
AI Technical Summary
The existing aluminum alloy radiators have low heat dissipation speed, mainly due to their closed shape and small contact area, which leads to low heat absorption and heat dissipation efficiency.
An aluminum alloy radiator is designed. By setting an inner heat absorbing flap on the inside of the tube body and an outer heat sink on the outside, the inner heat absorbing flap extends from the inner wall of the tube body, and the outer heat sink extends from the outer wall, and is evenly distributed on the inner and outer walls of the tube body. Multiple sheets, using an S-shaped cross-section and appropriate angles to increase contact area and heat transfer capability.
The heat absorption and heat dissipation speed of the radiator is improved, the contact area between the working fluid and the pipe body is increased, the heat transfer path is shortened, the overall heat transfer speed and heat dissipation efficiency is improved, and the contact area with air is increased, which is improved. The heating effect is achieved.
Smart Images
Figure CN222235334U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heat exchange, in particular to an aluminum alloy radiator. Background Art
[0002] There are many types of aluminum alloy radiators at present, most of which have complex structures. Aluminum alloy radiators are currently the mainstream form, but for the convenience of manufacturing and processing, their shapes are mostly closed, with small contact area with air, and low heat absorption and heat dissipation efficiency. Utility Model Content
[0003] The first purpose of the utility model is to provide an aluminum alloy radiator to solve the technical problem of low heat dissipation speed in the prior art.
[0004] The aluminum alloy radiator provided by the utility model comprises a tube body, an inner heat absorbing fin arranged inside the tube body, and an outer heat radiating fin arranged outside the tube body; the tube body is used for flowing working medium; the inner heat absorbing fin extends from the inner wall of the tube body, and the outer heat radiating fin extends from the outer wall of the tube body.
[0005] The beneficial effects brought by the aluminum alloy radiator of the utility model are:
[0006] By setting an inner heat absorbing sheet inside the tube body, the heat of the working fluid flowing in the tube body can be better absorbed. Because according to the basic principle of laminar flow, the closer to the inner wall of the tube body, the lower the flow rate of the fluid, so the inner heat absorbing sheet is extended from the inner wall of the tube body, and the inner heat absorbing sheet can be extended to a more central position inside the tube body, and contact with the working fluid with a faster flow rate, so that heat can be absorbed at a higher speed. Even if the working fluid flow in the tube body is closer to turbulence, the heat absorption area can be increased, the heat absorption speed can be increased, and the heat dissipation speed of the aluminum alloy radiator can be increased.
[0007] In a preferred technical solution, there are multiple inner heat absorbing sheets, and the multiple inner heat absorbing sheets are evenly distributed in the circumferential direction of the inner wall of the tube body.
[0008] In a preferred technical solution, there are multiple external heat sinks, and the multiple external heat sinks are evenly distributed in the circumferential direction of the outer wall of the tube body.
[0009] In a preferred technical solution, the outer heat sink comprises a first outer heat sink, and the inner heat absorbing fins are multiple in number, and at least each of the inner heat absorbing fins directly corresponds to one of the first outer heat sinks in the circumferential direction of the tube body.
[0010] In a preferred technical solution, the outer heat sink further includes a second outer heat sink, and the second outer heat sink is further provided in the circumferential region of the tube body between adjacent first outer heat sinks.
[0011] In a preferred technical solution, the cross-section of the inner heat absorbing sheet is S-shaped.
[0012] In a preferred technical solution, the root of the inner heat absorbing plate forms an angle of 15° to 60° with the inner wall of the tube body.
[0013] In a preferred technical solution, the outer heat sink is S-shaped.
[0014] In a preferred technical solution, the root of the outer heat sink forms an angle of 15° to 60° with the outer wall of the tube body.
[0015] In a preferred technical solution, the thickness of the outer heat sink is greater than or equal to that of the inner heat absorption fin. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments or background technologies of the present invention, the drawings required for use in the embodiments or background technology descriptions are briefly introduced below. Obviously, the drawings described below are merely embodiments of the present invention, and ordinary technicians in this field can obtain other drawings based on the provided drawings without paying any creative work.
[0017] Figure 1 A cross-sectional view of an aluminum alloy radiator provided in Embodiment 1 of the present utility model;
[0018] Description of reference numerals:
[0019] 10 - inner heat absorbing fin; 20 - outer heat sink; 21 - first outer heat sink; 22 - second outer heat sink; 30 - tube body. DETAILED DESCRIPTION
[0020] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0021] Embodiment 1:
[0022] Figure 1 This is a cross-sectional view of an aluminum alloy radiator provided in Example 1 of the utility model. Figure 1 As shown, the aluminum alloy radiator provided in the first embodiment of the utility model includes a tube body 30, an inner heat absorbing plate 10 arranged on the inner side of the tube body 30, and an outer heat radiating plate 20 arranged on the outer side of the tube body 30; the tube body 30 is used for flowing working medium; the inner heat absorbing plate 10 extends from the inner wall of the tube body 30, and the outer heat radiating plate 20 extends from the outer wall of the tube body 30.
[0023] By arranging the inner heat absorbing sheet 10 on the inner side of the tube body 30, the heat of the working medium flowing in the tube body 30 can be better absorbed. Because according to the basic principle of laminar flow, inside the tube body 30, the closer to the inner wall of the tube body 30, the lower the flow rate of the fluid, so the inner heat absorbing sheet 10 is extended from the inner wall of the tube body 30, and the inner heat absorbing sheet 10 can be extended to a more central position inside the tube body 30, and contact with the working medium with a faster flow rate, so that heat can be absorbed at a higher speed. Even if the working medium flow in the tube body 30 is closer to turbulence, the heat absorption area can be increased, the heat absorption speed can be increased, and the heat dissipation speed of the aluminum alloy radiator can be increased.
[0024] like Figure 1 As shown, preferably, there are multiple inner heat absorbing sheets 10 , and the multiple inner heat absorbing sheets 10 are evenly distributed in the circumferential direction of the inner wall of the tube body 30 .
[0025] By evenly distributing the internal heat absorption sheet 10 circumferentially on the inner wall of the tube body 30, the heat of a larger cross-section of the working fluid flowing in the tube body 30 can be absorbed. When the working fluid in the tube body 30 does not have a serious temperature difference between the upper and lower layers due to different cold and hot densities, or when the tube body 30 is not set horizontally, the heat absorption capacity can be significantly improved.
[0026] like Figure 1 As shown, preferably, there are multiple outer heat sinks 20 , and the multiple outer heat sinks 20 are evenly distributed in the circumferential direction of the outer wall of the tube body 30 .
[0027] By evenly distributing multiple external heat sinks 20 in the circumferential direction on the outer wall of the tube body 30, the surrounding space outside the tube body 30 can be better utilized, and heat can be dissipated in the surrounding space outside the tube body 30 and the air around the aluminum alloy radiator. In addition, the contact area between the external heat sink 20 and the air is large, which can effectively increase the temperature of the surrounding air, thereby improving the heating effect of the space that needs heating.
[0028] like Figure 1 As shown, preferably, the outer heat sink 20 includes a first outer heat sink 21 , and at least part of the inner heat absorbing fins 10 directly corresponds to a first outer heat sink 21 in the circumferential direction of the tube body 30 .
[0029] In this embodiment, there are 9 inner heat absorbing sheets 10. Figure 1 According to the direction shown, the inner heat absorbing fin 10 on the right side of the center of the tube body 30 is No. 1, and in the counterclockwise direction, the inner heat absorbing fins 10 No. 2, No. 3, No. 5, No. 6, No. 7 and No. 9 are basically facing a first heat sink in the circumferential direction of the tube body 30. There are 22 outer heat sinks 20, and naturally, these 22 outer heat sinks 20 include 9 first outer heat sinks 21.
[0030] Of course, in another implementation, if there are 9 inner heat absorbing fins 10 and 18 outer heat radiating fins 20, and the inner heat absorbing fins 10 and the outer heat radiating fins 20 are evenly distributed, it can be achieved that all the inner heat absorbing fins 10 have a first outer heat radiating fin 21 directly corresponding thereto in the circumferential direction.
[0031] By arranging the first outer heat sink 21 to directly correspond to at least a portion of the inner heat absorption fin 10 in the circumferential direction of the tube body 30, it can be achieved that the heat absorbed by the inner heat absorption fin 10 is directly transferred to the first outer heat sink 21 through the root of the inner heat absorption fin 10, through the tube body 30 between the root of the inner heat absorption fin 10 and the root of the first outer heat sink 21, thereby shortening the heat transfer path, shortening the heat transfer time, and improving the heat transfer speed as a whole.
[0032] like Figure 1 As shown, preferably, the outer heat sink 20 further includes a second outer heat sink 22 , and a second outer heat sink 22 is further provided in the circumferential region of the tube body 30 between adjacent first outer heat sinks 21 .
[0033] Specifically, in this embodiment, there are 22 external heat sinks 20 , 9 of which are first external heat sinks 21 , and 13 of which are second external heat sinks 22 .
[0034] By arranging the second outer fins 22 between the first outer fins 21 , the outer wall of the tube body 30 between the first outer fins 21 can be utilized, and the second outer fins 22 can be utilized to increase the contact area between the aluminum alloy radiator and the air.
[0035] like Figure 1 As shown, preferably, the cross section of the inner heat absorbing sheet 10 is S-shaped.
[0036] The S-shape is generally composed of two semicircles, the opening directions of the two semicircles are opposite, and one end of each of the two semicircles is connected to the other, that is, the four ends of the two semicircles are on the same straight line, and two of the ends are connected.
[0037] The cross section of the inner heat absorbing sheet 10 is set to be S-shaped, so that the inner heat absorbing sheet 10 and the working medium flowing in the tube body 30 can have a larger contact area when the radial dimension is small. Therefore, the heat absorption capacity of the inner heat absorbing sheet 10 is improved.
[0038] like Figure 1 As shown, preferably, the root of the inner heat absorbing sheet 10 and the inner wall of the tube body 30 form an angle of 15° to 60°.
[0039] From the free end of the cross section of the inner heat absorbing sheet 10 to the root of the inner heat absorbing sheet 10, the amount of heat that the inner heat absorbing sheet 10 needs to transfer in its expansion direction gradually increases. Therefore, by making the root of the inner heat absorbing sheet 10 and the inner wall of the tube body 30 form the above-mentioned angle, the thickness of the inner aluminum alloy radiator at the root gradually increases, and the cross section for transferring heat along the expansion direction of the inner heat absorbing sheet 10 gradually increases, and the heat transfer capacity gradually improves. As a result, in the process of the inner heat absorbing sheet 10 absorbing heat from the working medium and transferring it to the tube body 30 and the outer heat sink 20, the root of the inner heat absorbing sheet 10 no longer becomes a bottleneck of heat transfer, and the ability of the inner heat absorbing sheet 10 to transfer heat to the outside is improved.
[0040] like Figure 1 As shown, preferably, the outer heat sink 20 is S-shaped.
[0041] The S-shape is generally composed of two semicircles, the opening directions of the two semicircles are opposite, and one end of each of the two semicircles is connected to the other, that is, the four ends of the two semicircles are on the same straight line, and two of the ends are connected.
[0042] The cross section of the outer heat sink 20 is set to be S-shaped, so that the outer heat sink 20 and the air around the hollow tube body 30 can have a larger contact area when the radial dimension is small, thereby improving the heat dissipation capacity of the outer heat sink 20.
[0043] like Figure 1 As shown, preferably, the root of the outer heat sink 20 and the outer wall of the tube body 30 form an angle of 15° to 60°.
[0044] By setting the above angle between the root of the outer fin 20 and the outer wall of the tube body 30, the thickness of the root of the outer fin 20 can be significantly increased. Since the outer fin 20 is easily collided, and once a collision occurs, the torque on the root is the largest, increasing the thickness of the root can significantly reduce the possibility of the root of the outer fin 20 being broken due to the collision of the outer fin 20, thereby increasing the service life of the aluminum alloy radiator.
[0045] like Figure 1 As shown, preferably, the thickness of the outer heat sink 20 is greater than or equal to that of the inner heat absorption fin 10 .
[0046] Specifically, in this embodiment, the thickness of the outer heat sink 20 may be equal to that of the inner heat absorption fin 10 .
[0047] Setting the thickness of the outer heat sink 20 to be greater than or equal to the thickness of the inner heat absorbing fin 10 can improve the heat transfer capacity of the outer heat sink 20 along its unfolding direction, and is also conducive to reducing the possibility of the outer heat sink 20 being broken due to collision. In addition, adjusting the thickness of the inner heat absorbing fin 10 to be roughly the same as that of the outer heat sink 20 can also reduce the problem of reduced processing accuracy caused by excessive difference in cooling speed after extrusion due to inconsistent thickness of the inner and outer heat sink 20 during the molding process.
[0048] In addition, the aluminum alloy heat sink can be made of 6061 aluminum alloy, and the combination of the mold is not the focus of this application, so it will not be described in detail. In the extrusion process, the temperature of the cast rod can be controlled at 500℃~525℃. When selecting an extruder, it is necessary to ensure that the extrusion ratio is greater than 38, the low extrusion speed is ≤3mm / s, and the outlet temperature is controlled at 530℃~545℃. The molded aluminum alloy can be cooled by strong wind cooling. In addition, the semicircular diameter of the outer heat sink 20 is twice the semicircular diameter of the inner heat absorber 10.
[0049] Although the utility model is disclosed as above, the utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the scope defined by the claims.
[0050] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprises a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.
[0051] In the above embodiments, the descriptions of directions such as “upper” and “lower” are all based on the drawings.
[0052] The above description of the disclosed embodiments enables professionals in the field to implement or use the utility model. Various modifications to these embodiments will be apparent to professionals in the field, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model.
[0053] Therefore, the present invention will not be limited to the embodiments shown herein but will be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. An aluminum alloy radiator, characterized in that: The invention comprises a tube body (30), an inner heat absorbing plate (10) arranged on the inner side of the tube body (30), and an outer heat dissipating plate (20) arranged on the outer side of the tube body (30); the tube body (30) is used for flowing working medium; the inner heat absorbing plate (10) extends from the inner wall of the tube body (30), and the outer heat dissipating plate (20) extends from the outer wall of the tube body (30).
2. The aluminum alloy radiator according to claim 1, characterized in that: The number of the inner heat absorbing sheets (10) is multiple, and the multiple inner heat absorbing sheets (10) are evenly distributed in the circumferential direction of the inner wall of the tube body (30).
3. The aluminum alloy radiator according to claim 1, characterized in that: The number of the external heat sinks (20) is multiple, and the multiple external heat sinks (20) are evenly distributed in the circumferential direction of the outer wall of the tube body (30).
4. The aluminum alloy radiator according to claim 3, characterized in that: The outer heat sink (20) comprises a first outer heat sink (21), the inner heat absorption fins (10) are multiple in number, and at least part of the inner heat absorption fins (10) directly correspond to one of the first outer heat sinks (21) in the circumferential direction of the tube body (30).
5. The aluminum alloy radiator according to claim 4, characterized in that: The outer heat sink (20) further comprises a second outer heat sink (22), and the second outer heat sink (22) is further provided in the circumferential region of the tube body (30) between adjacent first outer heat sinks (21).
6. The aluminum alloy radiator according to any one of claims 1 to 5, characterized in that: The cross section of the inner heat absorbing sheet (10) is S-shaped.
7. The aluminum alloy radiator according to claim 6, characterized in that: The root of the inner heat absorbing sheet (10) and the inner wall of the tube body (30) form an angle of 15° to 60°.
8. The aluminum alloy radiator according to any one of claims 1 to 5, characterized in that: The outer heat sink (20) is S-shaped.
9. The aluminum alloy radiator according to claim 7, characterized in that: The root of the external heat sink (20) forms an angle of 15° to 60° with the outer wall of the tube body (30).
10. The aluminum alloy radiator according to any one of claims 1 to 5, characterized in that: The thickness of the outer heat sink (20) is greater than or equal to the inner heat absorption sheet (10).