Standard 3U module air cooling heat dissipation structure
By designing a standard 3U module air-cooled heat dissipation structure and using heat dissipation teeth and materials of a specific shape, the problem of increased wind resistance caused by the 90° airflow channel was solved, achieving efficient heat dissipation and convenient disassembly, and meeting the heat dissipation requirements of high-density electronic devices.
Patent Information
- Application Number
- CN202423046968.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-10
AI Technical Summary
In the context of high-density integration and miniaturization, the 90° airflow of existing electronic devices increases air resistance, affecting heat dissipation and making it difficult to meet the requirements of efficient heat dissipation.
Design a standard 3U modular air-cooled heat dissipation structure, using an aluminum alloy shell and cover plate, with helical and vertical teeth on the outer wall at an angle of 120-150° for airflow distribution, and reinforced and disassembled by locking strips and pullers, meeting the VITA48 standard.
The 90° airflow duct enables reasonable airflow distribution, improves heat dissipation efficiency, meets the heat dissipation requirements of high-density electronic equipment, and ensures the reliability and ease of disassembly of the module.
Smart Images
Figure CN223681306U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to electronic equipment machine case technical field, concretely relates to a standard 3U module air cooling heat dissipation structure. BACKGROUND
[0002] With the rapid development of microelectronic technology, electronic system is also developing towards miniaturization, integration and high density, and the functional density is continuously increasing, and the volume is continuously reducing, which brings the problems of increasing power consumption and increasing heat dissipation difficulty. When the electronic equipment is running, the internal electronic components will finally convert the power supply into heat, which must be dissipated in time, otherwise the temperature of the components will be too high, and the reliability of the components is directly related to the temperature, and the temperature is too high, which will cause the reliability of the components to decrease rapidly.
[0003] At present, the electronic equipment heat dissipation technology mainly includes natural heat dissipation, forced air cooling, liquid cooling and the like. Forced air cooling uses air as cooling medium, which is easy to obtain and has good heat dissipation capacity, and is widely used in electronic equipment. But limited by the installation position, the air duct has smooth horizontal air duct and 90 degree air duct, and the 90 degree air duct will cause the air resistance to be large, which affects the heat dissipation effect, so the air duct needs to be designed and optimized. SUMMARY
[0004] Therefore, the application provides a standard 3U module air cooling heat dissipation structure to enhance the air cooling heat dissipation efficiency.
[0005] The application provides the following technical scheme: a standard 3U module air cooling heat dissipation structure, the air cooling heat dissipation structure comprises a shell, a cover plate and a functional printed board, the cover plate and the shell are fixedly connected to package the functional printed board in the module inner cavity, the outer wall surfaces of the shell and the cover plate are respectively provided with heat dissipation teeth, the heat dissipation teeth comprise inclined teeth and vertical teeth for air volume distribution, the vertical teeth are arranged at the top of the shell and the cover plate and are composed of a plurality of tooth strips with different lengths to form a reverse triangular vertical tooth structure on the side wall of the shell and the cover plate, the inclined teeth are composed of a plurality of tooth strips with different lengths, and the inclined teeth are distributed on both sides of the vertical tooth structure, and the included angle between the inclined teeth and the vertical teeth is 120-150 degrees.
[0006] According to an embodiment of the application, the air cooling heat dissipation structure further comprises a locking strip, the locking strip is installed on both sides of the cover plate and the shell for reinforcement and heat transfer.
[0007] According to an embodiment of the application, the air cooling heat dissipation structure further comprises an extractor, the extractor is installed on the top of the shell for dismounting the functional printed board.
[0008] According to one embodiment of the present application, the cover plate and the shell are both made of aluminum alloy material.
[0009] According to one embodiment of the present application, the cover plate and the shell fix the functional printed board through screws to encapsulate the functional printed board and devices inside the module.
[0010] According to one embodiment of the present application, the thickness of the oblique teeth and the vertical teeth is 1mm-1.5mm, and the interval between adjacent teeth is 2.5mm-3.5mm.
[0011] According to one embodiment of the present application, the included angle of the oblique teeth and the vertical teeth is 135°.
[0012] According to one embodiment of the present application, the air-cooled heat dissipation structure meets the standard size requirement of 3U module in VITA48.
[0013] Compared with the prior art, the above at least one technical solution adopted by the embodiments of the present application can achieve at least the following beneficial effects: the structural form of the embodiments of the present application is composed of a shell, a cover plate, a functional printed board, locking strips and a puller. The shell and the cover plate fix the printed board through screws, and the shell and the cover plate are internally designed to contact with heat generating devices to conduct the generated heat to the shell and the cover plate; the shell is installed with locking strips on the left and right sides, which can play the role of reinforcing and transferring heat, and the shell is installed with a puller on the top for module side disassembly; on the outside of the shell and the cover plate, heat dissipation teeth of a specific shape are designed, which can ensure that the air volume can be reasonably distributed under the condition of 90° air duct. The shape and interface size of the embodiments of the present application meet the requirements of VITA48 standard; and good heat dissipation capacity can be provided under 90° air duct. BRIEF DESCRIPTION OF DRAWINGS
[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0015] Figure 1 is a schematic diagram of the module structural form of the embodiments of the present application;
[0016] Figure 2 is an exploded view of the embodiments of the present application;
[0017] Figure 3 is a schematic diagram of the shape and size of the heat dissipation teeth of the embodiments of the present application;
[0018] Figure 4It is a wind channel structure schematic diagram of the embodiment of the utility model;
[0019] Figure 5 It is the simulation temperature cloud chart in the embodiment of the utility model;
[0020] Wherein, 1 - shell, 2 - cover plate, 3 - locking strip, 4 - vertical tooth, 5 - inclined tooth, 6 - function printed board, 7 - puller. DETAILED DESCRIPTION
[0021] The application embodiments are described in detail below with reference to the drawings.
[0022] The following describes the embodiments of the application by specific examples, and those skilled in the art can easily understand other advantages and effects of the application from the disclosure of the specification. Obviously, the described embodiments are only part of the embodiments of the application, not all. The application can also be implemented or applied by other different specific embodiments, and various modifications or changes can be made to the details in the specification without departing from the spirit of the application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the application.
[0023] As Figures 1-4 shown, the utility model embodiment provides a standard 3U module air cooling heat dissipation structure, the air cooling heat dissipation structure includes: shell 1, cover plate 2 and function printed board 6, the cover plate 2 with the shell 1 fixed connection, to package the function printed board 6 in module inner chamber, the outer wall surface of shell 1 and cover plate 2 is provided with heat dissipation tooth respectively, the heat dissipation tooth includes the inclined tooth 5 for air volume distribution and vertical tooth 4, the vertical tooth 4 is provided at the top of shell 1 and cover plate 2, and is formed by a plurality of different length racks, to form inverted triangular vertical tooth structure on the side wall of shell 1 and cover plate 2, the inclined tooth 5 is formed by a plurality of different length racks, and the inclined tooth 5 is distributed on both sides of the vertical tooth 4 structure, the included angle of inclined tooth 5 and vertical tooth 4 is 120-150 °.
[0024] The utility model embodiment is a standard 3U module air cooling heat dissipation structure. Forced air cooling is a widely used heat management method in airborne electronic equipment. If the cooling air can flow uniformly in the cabinet, the air resistance can be reduced and the heat exchange efficiency can be improved. The utility model embodiment designs a special module heat dissipation tooth structure, which ensures that the module can still provide good heat dissipation for the device under the condition of side air inlet, and the simulation and test results are good, which has good practical significance.
[0025] In a specific implementation manner of the embodiment of the utility model, the air cooling heat dissipation structure further comprises locking strips 3, the locking strips 3 are installed on both sides of the cover plate 2 and the shell 1 and are used for reinforcing and heat transfer. The air cooling heat dissipation structure further comprises a puller 7, the puller 7 is installed on the top of the shell 1 and is used for disassembling the functional printed board 6.
[0026] Preferably, the cover plate 2 and the shell 1 are both made of aluminum alloy material.
[0027] Preferably, the cover plate 2 and the shell 1 fix the functional printed board 6 through screws to encapsulate the functional printed board 6 and devices inside the module.
[0028] In a specific implementation manner of the embodiment of the utility model, the thickness of the oblique tooth 5 and the tooth bar in the vertical tooth 4 is 1mm-1.5mm, and the interval between adjacent tooth bars is 2.5mm-3.5mm.
[0029] In a specific implementation manner of the embodiment of the utility model, the included angle of the oblique tooth 5 and the vertical tooth 4 is 135°.
[0030] In a specific implementation manner of the embodiment of the utility model, the air cooling heat dissipation structure meets the standard size requirement of the 3U module in VITA48.
[0031] The structure form of the embodiment of the utility model is composed of a shell 1, a cover plate 2, a functional printed board 6, locking strips 3 and a puller 7. The shell 1 and the cover plate 2 fix the functional printed board 6 through screws, and the shell 1 and the cover plate 2 are internally designed to contact with heating devices, so that the generated heat is conducted to the shell 1 and the cover plate 2; the shell 1 is installed with the locking strips 3 on the left and right sides, which can play the role of reinforcing and transferring heat, and the shell 1 is installed with the puller 7 on the top, which is used for module side disassembly; on the outside of the shell 1 and the cover plate 2, heat dissipation teeth of specific shape are designed, which can ensure that the air volume can be reasonably distributed under the condition of 90° air duct.
[0032] In the design of the embodiment of the utility model, different values of the included angle (C) are simulated and compared, and the temperature cloud map is as shown in Figure 5 The heat dissipation capacity of the module when the included angle is 90°, 110°, 135°, 155° and 180° is compared under the condition of the same air volume and the same power consumption. Through simulation, it can be seen that when the included angle is 135°, the heat dissipation capacity of the module is the best. As shown in Table 1.
[0033] Table 1 temperature comparison of different included angles
[0034] included angle 90° 110° 135° 155° 180° temperature 93.6℃ 91.2℃ 88.9℃ 92.4℃ 94.8℃
[0035] The above merely provides the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any changes or replacements within the technical scope disclosed by the present application can be easily conceived by the person skilled in the art, and should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A standard 3U module air-cooled heat dissipation structure, characterized in that, The air-cooled heat dissipation structure comprises a shell, a cover plate and a functional printed board, the cover plate and the shell are fixedly connected to encapsulate the functional printed board in a module inner cavity, the outer wall surfaces of the shell and the cover plate are respectively provided with heat dissipation teeth, the heat dissipation teeth comprise inclined teeth for air volume distribution and vertical teeth, the vertical teeth are arranged at the top of the shell and the cover plate and are composed of a plurality of tooth bars with different lengths to form an inverted triangular vertical tooth structure on the side wall of the shell and the cover plate, the inclined teeth are composed of a plurality of tooth bars with different lengths and are distributed on both sides of the vertical tooth structure, and the included angle between the inclined teeth and the vertical teeth is 120-150°.
2. The air-cooled heat dissipation structure of a standard 3U module according to claim 1, wherein, The air-cooled heat dissipation structure further comprises locking strips, the locking strips are installed on both sides of the cover plate and the shell for reinforcement and heat transfer.
3. The air-cooled heat dissipation structure of a standard 3U module according to claim 1, wherein, The air-cooled heat dissipation structure further comprises a puller, the puller is installed on the top of the shell for dismounting the functional printed board.
4. The air-cooled heat dissipation structure of a standard 3U module according to claim 1, wherein, The cover plate and the shell are both made of aluminum alloy material.
5. The air-cooled heat dissipation structure of a standard 3U module according to claim 1, wherein, The cover plate and the shell are fixed by screws to fix the functional printed board and devices in the module.
6. The air-cooled heat dissipation structure of a standard 3U module according to claim 1, wherein, The thickness of the tooth bars in the inclined teeth and the vertical teeth is 1-1.5 mm, and the interval between adjacent tooth bars is 2.5-3.5 mm.
7. The air-cooled heat dissipation structure of a standard 3U module according to claim 1, wherein, The included angle between the inclined teeth and the vertical teeth is 135°.
8. The air-cooled heat dissipation structure of a standard 3U module according to claim 1, wherein, The air-cooled heat dissipation structure meets the standard size requirements of the 3U module in VITA48.