Heat dissipation air duct and power conversion equipment
By designing a radiator structure with bottom air intake and side wall air exhaust in the heat dissipation duct, the problem of low heat dissipation efficiency in the existing technology is solved, and efficient heat dissipation is achieved in environments with fallen leaves and a lot of dust.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUNGROW POWER SUPPLY CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-01
AI Technical Summary
In existing technologies, the side-wall air outlet method of the heat dissipation duct cannot maximize the use of heat dissipation space, resulting in reduced heat dissipation efficiency. In particular, the top air outlet is prone to blockage in environments with fallen leaves and a lot of dust.
A heat dissipation duct is designed with an air inlet on the bottom wall of the casing and an air outlet on the side wall. The radiator is divided into first and second heat dissipation areas, with first and second heat dissipation parts arranged in them respectively. External air enters from the bottom and exits through the side wall to maximize the use of heat dissipation space.
It achieves improved heat dissipation efficiency while taking into account side wall airflow, avoids blockage of top air outlet, and enhances the equipment's heat dissipation capability in environments with fallen leaves and dust.
Smart Images
Figure CN224192316U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of electronic device technology, and in particular to a heat dissipation duct and a power conversion device. Background Technology
[0002] Currently, the cooling air duct uses a bottom intake and top exhaust method. When the equipment is in a working environment with a lot of fallen leaves and dust, the top exhaust vent is easily blocked. Therefore, some cooling air ducts are designed with side exhaust. However, conventional side exhaust cannot maximize the use of heat dissipation space and actually reduces heat dissipation efficiency.
[0003] Therefore, how to balance side wall airflow and heat dissipation efficiency has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0004] This application proposes a heat dissipation duct and a power conversion device to balance side wall airflow and heat dissipation efficiency.
[0005] To achieve the above objectives, this application discloses the following technical solutions:
[0006] In a first aspect, this application provides a heat dissipation duct, including a housing, and a heat sink and a heat-generating element disposed within the housing, wherein:
[0007] An air inlet is provided on the bottom wall of the casing, and an air outlet is provided on the side wall of the casing;
[0008] The heating element is located on the heat-absorbing side of the heat sink;
[0009] The heat dissipation side of the radiator includes a first heat dissipation area and a second heat dissipation area. The bottom of the first heat dissipation area is connected to the air inlet, and the side of the second heat dissipation area is connected to the air outlet. The first heat dissipation area is equipped with a first heat dissipation part, and the second heat dissipation area is equipped with a second heat dissipation part.
[0010] In some embodiments, the first heat dissipation portion includes at least two first heat dissipation fins extending from the bottom of the first heat dissipation region toward the top of the first heat dissipation region;
[0011] and / or
[0012] The second heat dissipation section includes at least two second heat dissipation fins extending from the bottom of the second heat dissipation area toward the side of the second heat dissipation area.
[0013] In some embodiments, the spacing between any two adjacent first heat dissipation fins is equal;
[0014] and / or
[0015] The spacing between any two adjacent second heat dissipation fins is equal.
[0016] In some embodiments, when air vents are arranged on both side walls of the housing, the second heat dissipation fins are in two sets. One set of second heat dissipation fins extends from the bottom of the second heat dissipation area to one of the two sides of the second heat dissipation area, and the other set of second heat dissipation fins extends from the bottom of the second heat dissipation area to the other of the two sides of the second heat dissipation area.
[0017] In some embodiments, the two sets of second heat dissipation fins are arranged symmetrically.
[0018] In some embodiments, the number of second heat dissipation fins is the same as the number of first heat dissipation fins, and the second heat dissipation fins and the first heat dissipation fins are aligned one-to-one at the junction of the first heat dissipation area and the second heat dissipation area.
[0019] In some embodiments, the aligned second heat dissipation fins are either an integral structure or a separate structure from the first heat dissipation fins.
[0020] In some embodiments, the first heat dissipation portion includes at least two third heat dissipation fins extending from the bottom of the first heat dissipation region toward the top of the first heat dissipation region;
[0021] and / or
[0022] The first heat dissipation section includes at least two heat dissipation columns.
[0023] In some embodiments, the cross-sectional shape of the heat dissipation column is circular, elliptical, polygonal, or irregular.
[0024] In some embodiments, the heat sink includes a first heat sink and a second heat sink, wherein the heat dissipation side of the first heat sink corresponds to a first heat dissipation area, and the heat dissipation side of the second heat sink corresponds to a second heat dissipation area.
[0025] In some embodiments, the first heat sink and the second heat sink are either an integral structure or a separate structure.
[0026] In some embodiments, the heat sink is made of aluminum, copper, an aluminum alloy, or a copper alloy.
[0027] Secondly, this application provides a power conversion device, including a heat dissipation duct as described in any of the above.
[0028] As can be seen from the above technical solution, by adopting the heat dissipation duct of this application, external air can enter the first heat dissipation area through the air inlet located on the bottom wall of the casing, and then change direction through the air outlet located on the side wall of the casing after passing through the second heat dissipation area. Furthermore, since the first heat dissipation area is equipped with a first heat dissipation section and the second heat dissipation area is equipped with a second heat dissipation section, the heat dissipation space can be utilized to the maximum extent. Therefore, the heat dissipation duct of this application can simultaneously achieve both side wall air outlet and heat dissipation efficiency. Attached Figure Description
[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some examples or embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort, and this application can be applied to other similar scenarios based on the provided drawings. Unless obvious from the linguistic context or otherwise specified, the same reference numerals in the drawings represent the same structures or operations.
[0030] Figure 1 A perspective view of a heat dissipation duct provided in an embodiment of this application;
[0031] Figure 2 for Figure 1 The exploded view of the heat dissipation duct shown from below;
[0032] Figure 3 for Figure 1 The exploded top view of the heat dissipation airflow duct shown;
[0033] Figure 4 A perspective view of a heat sink provided in an embodiment of this application;
[0034] Figure 5 for Figure 4 The front view of the radiator is shown;
[0035] Figure 6 This is a front view of another heat sink provided in an embodiment of this application;
[0036] Figure 7 This is a front view of a third type of heat sink provided in an embodiment of this application;
[0037] Figure 8 This is a perspective view of the fourth type of heat sink provided in the embodiments of this application;
[0038] Figure 9 for Figure 8 The front view of the radiator is shown;
[0039] Figure 10 A perspective view of the fifth type of heat sink provided in the embodiments of this application;
[0040] Figure 11 A perspective view of the second type of heat dissipation duct provided in the embodiments of this application;
[0041] Figure 12 for Figure 11 An exploded view of the heat dissipation airflow shown.
[0042] In the diagram: 10 - Heat dissipation airflow;
[0043] 1-Housing; 2-Radiator; 3-Heating element;
[0044] 11-Air inlet; 12-Air outlet; 1a-Top wall; 1b-Bottom wall; 1c-First side wall; 1d-Second side wall; 1e-Front wall; 1f-Rear wall;
[0045] 21-First heat dissipation area; 22-Second heat dissipation area; 2a-Heat absorption side; 2b-Heat dissipation side; 2c-First side; 2d-Second side;
[0046] 210 - First radiator; 220 - Second radiator;
[0047] 211 - First heat dissipation unit; 221 - Second heat dissipation unit;
[0048] 2111 - First heat dissipation fin; 2112 - Third heat dissipation fin; 2211 - Second heat dissipation fin; 2212 - Heat dissipation column. Detailed Implementation
[0049] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the application and not intended to limit it. The described embodiments are only a part of the embodiments of the present application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without inventive effort are within the scope of protection of the present application.
[0050] To achieve the above objectives, this application discloses the following technical solutions:
[0051] See Figure 1 This application provides a heat dissipation duct 10, including a housing 1, and a heat sink 2 and a heat-generating element 3 disposed within the housing 1, such as... Figure 2 As shown, the bottom wall 1b of the housing 1 is provided with an air inlet 11, and the side wall of the housing 1 is provided with an air outlet 12; the heating element 3 is provided on the heat absorption side 2a of the radiator 2; the heat dissipation side 2b of the radiator 2 includes a first heat dissipation area 21 and a second heat dissipation area 22, the bottom of the first heat dissipation area 21 is connected to the air inlet 11, the side of the second heat dissipation area 22 is connected to the air outlet 12, the first heat dissipation area 21 is provided with a first heat dissipation part 211, and the second heat dissipation area 22 is provided with a second heat dissipation part 221.
[0052] Using the heat dissipation duct described in this application, external air can enter the first heat dissipation area 21 through the air inlet 11 located on the bottom wall 1b of the housing 1, and then change direction after passing through the second heat dissipation area 22 and exiting through the outlet air located on the side wall of the housing 1. Furthermore, since the first heat dissipation area 21 is provided with a first heat dissipation section 211 and the second heat dissipation area 22 is provided with a second heat dissipation section 221, the heat dissipation space can be utilized to the maximum extent. Therefore, the heat dissipation duct described in this application can simultaneously achieve both side wall air outlet and heat dissipation efficiency.
[0053] It should be noted that the aforementioned housing 1 has a top wall 1a, a bottom wall 1b, a first side wall 1c, a second side wall 1d, a front wall 1e, and a rear wall 1f, wherein the top wall 1a and the bottom wall 1b are arranged opposite to each other, the first side wall 1c and the second side wall 1d are arranged opposite to each other, and the front wall 1e and the rear wall 1f are arranged opposite to each other. The radiator 2 has a heat-absorbing side 2a, a heat-dissipating side 2b, a first side portion 2c, and a second side portion 2d, wherein the heat-absorbing side 2a and the heat-dissipating side 2b are arranged opposite to each other, and the first side portion 2c and the second side portion 2d are arranged opposite to each other.
[0054] The aforementioned heating element 3 may include power devices (IGBT, IGCT, etc.), capacitors, inductors, etc.
[0055] Combination Figure 3 See Figure 4-5 This application discloses a radiator 2, wherein the first heat dissipation part 211 includes at least two first heat dissipation fins 2111 extending from the bottom of the first heat dissipation area 21 to the top of the first heat dissipation area 21; and the second heat dissipation part 221 includes at least two second heat dissipation fins 2211 extending from the bottom of the second heat dissipation area 22 to the side of the second heat dissipation area 22.
[0056] Combination Figure 2 See Figure 5 The air entering through the air inlet 11 flows along the adjacent first heat dissipation fins 2111 into the first heat dissipation area 21 and exchanges heat with the first heat dissipation fins 2111. It then enters the second heat dissipation area 22 and exchanges heat with the second heat dissipation fins 2211. At the same time, the air changes direction under the guidance of the second heat dissipation fins 2211 and is finally discharged from the air outlet 12.
[0057] It should be noted that the spacing between any two adjacent first heat dissipation fins 2111 may be equal or unequal; similarly, the spacing between any two adjacent second heat dissipation fins 2211 may be equal or unequal.
[0058] The first heat dissipation fins 2111 can be arranged in parallel, and the second heat dissipation fins 2211 can also be arranged in parallel, thereby reducing the air resistance of the air in the adjacent first heat dissipation fins 2111 and the adjacent second heat dissipation fins 2211.
[0059] In this application, an air outlet 12 may be arranged on one side wall of the housing 1, or both side walls may be arranged with air outlets 12. Each side wall may have one or more air outlets 12. A grille may also be provided at the air outlet 12 to prevent foreign objects from entering the interior of the housing 1.
[0060] Combination Figure 2 See Figure 4 With air vents 12 arranged on both side walls of the housing 1, the second heat dissipation fins 2211 are in two sets. One set of second heat dissipation fins 2211 extends from the bottom of the second heat dissipation area 22 to one of the two sides of the second heat dissipation area 22, and the other set of second heat dissipation fins 2211 extends from the bottom of the second heat dissipation area 22 to the other of the two sides of the second heat dissipation area 22.
[0061] The two sets of second heat dissipation fins 2211 mentioned above can be arranged symmetrically or asymmetrically. The arrangement structure of the two sets of second heat dissipation fins 2211 can be adjusted according to actual needs.
[0062] The aforementioned second heat dissipation fin 2211 extends generally in a straight line, such as Figure 5 As shown, the second heat dissipation fin 2211 can also extend along a curve, such as... Figure 6 As shown, Figure 6 The second heat dissipation fin 2211 extends along an arc. Of course, the second heat dissipation fin 2211 of this application can also extend along the curves of other structures, such as hyperbolas, parabolas, etc.
[0063] To reduce the resistance of air entering the second heat dissipation area 22 from the first heat dissipation area 21, for example, the number of second heat dissipation fins 2211 is the same as the number of first heat dissipation fins 2111, and the second heat dissipation fins 2211 and the first heat dissipation fins 2111 are aligned one by one at the junction of the first heat dissipation area 21 and the second heat dissipation area 22.
[0064] Therefore, the gaps between each adjacent first heat dissipation fin 2111 in the first heat dissipation area 21 are aligned with the gaps between adjacent second heat dissipation fins 2211 in the second heat dissipation area 22, which can reduce the resistance when air passes through.
[0065] The second heat dissipation fins 2211, which are aligned one-to-one with the first heat dissipation fins 2111, are an integral structure, such as... Figure 5 and Figure 6 As shown, or the second heat dissipation fins 2211 and the first heat dissipation fins 2111 are of a separate structure, as shown in the figure. Figure 7 As shown.
[0066] This application also discloses another structure of the heat sink 2, see [link to relevant documentation]. Figure 8 and Figure 9In the radiator 2, the first heat dissipation part 211 includes at least two third heat dissipation fins 2112 extending from the bottom of the first heat dissipation area 21 to the top of the first heat dissipation area 21; the first heat dissipation part 211 includes at least two heat dissipation columns 2212.
[0067] The air entering through the air inlet 11 flows along the adjacent third heat dissipation fin 2112 into the first heat dissipation area 21 and exchanges heat with the first heat dissipation fin 2111. It then enters the second heat dissipation area 22 and exchanges heat with the heat dissipation column 2212. At the same time, the air direction changes discretely under the action of the heat dissipation column 2212 and is finally discharged from the air outlet 12.
[0068] In the figure, the heat sink 2212 has a circular cross-sectional shape. In other examples of this application, the heat sink 2212 has an elliptical, polygonal (triangle, quadrilateral, pentagon, hexagon, etc.) or irregular shape cross-sectional shape.
[0069] In the above embodiments, the heat sink 2 is an integral structure. In some embodiments of this application, such as... Figure 10 As shown, the radiator 2 can also be divided into at least two radiators 2. Taking the division into at least two radiators 2 as an example, the radiator 2 includes a first radiator 210 and a second radiator 220. The heat dissipation side 2b of the first radiator 210 corresponds to the first heat dissipation area 21, and the heat dissipation side 2b of the second radiator 220 corresponds to the second heat dissipation area 22. The first radiator 210 and the second radiator 220 can be an integral structure or a separate structure.
[0070] To improve heat dissipation efficiency, the heat sink 2 is made of materials such as aluminum, copper, aluminum alloy, or copper alloy.
[0071] In the above example, the air inlet 11 of the heat dissipation duct is located on the bottom wall 1b of the housing 1, and the air outlet 12 is located on the side wall of the housing 1. In some other examples of this application, the air inlet 11 may also be located on the front wall 1e or the rear wall 1f. See [reference needed]. Figure 11 and Figure 12 As shown in the figure, an air inlet 11 is provided on the front wall 1e of the housing 1. External air can enter the first heat dissipation area 21 through the air inlet 11 on the bottom wall 1b and the air inlet 11 on the front wall 1e, and then change direction after passing through the second heat dissipation area 22 and exiting through the outlet air on the side wall of the housing 1. In addition, since the first heat dissipation area 21 is provided with a first heat dissipation part 211 and the second heat dissipation area 22 is provided with a second heat dissipation part 221, the heat dissipation space can be utilized to the maximum extent. Therefore, the above-mentioned heat dissipation air duct of this application can take into account both side wall air outlet and heat dissipation efficiency.
[0072] This application also discloses a power conversion device, including a heat dissipation duct as described in the above embodiments. Since the heat dissipation duct has the above-mentioned beneficial effects, the power conversion device including the heat dissipation duct has the corresponding effects, which will not be described in detail here.
[0073] In addition, the power conversion device of this application can be an inverter, a frequency converter, a buck converter, a boost converter, etc.
[0074] In the above context, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
[0075] In the description of the embodiments of this application, unless otherwise stated, " / " means "or". For example, A / B can mean A or B. "And / or" in this article is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone.
[0076] It should be noted that, for ease of description, only the parts relevant to the application are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this application can be combined with each other.
[0077] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed, and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. The scope of this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described application concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.
Claims
1. A heat dissipation duct, characterized in that, Includes a housing (1), and a heat sink (2) and a heating element (3) disposed within the housing (1), wherein: An air inlet (11) is provided on the bottom wall of the housing (1), and an air outlet (12) is provided on the side wall of the housing (1). The heating element (3) is disposed on the heat absorption side of the radiator (2); The heat dissipation side of the radiator (2) includes a first heat dissipation area (21) and a second heat dissipation area (22). The bottom of the first heat dissipation area (21) is connected to the air inlet (11), and the side of the second heat dissipation area (22) is connected to the air outlet (12). The first heat dissipation area (21) is provided with a first heat dissipation part (211), and the second heat dissipation area (22) is provided with a second heat dissipation part (221).
2. The heat dissipating air duct according to claim 1, wherein, The first heat dissipation part (211) includes at least two first heat dissipation fins (2111) extending from the bottom of the first heat dissipation area (21) toward the top of the first heat dissipation area (21). and / or The second heat dissipation part (221) includes at least two second heat dissipation fins (2211) extending from the bottom of the second heat dissipation area (22) toward the side of the second heat dissipation area (22).
3. The heat dissipation duct as described in claim 2, characterized in that, The spacing between any two adjacent first heat dissipation fins (2111) is equal; and / or The spacing between any two adjacent second heat dissipation fins (2211) is equal.
4. The heat dissipating air duct according to claim 2, wherein, When air vents (12) are arranged on both side walls of the housing (1), the second heat dissipation fins (2211) are in two sets. One set of the second heat dissipation fins (2211) extends from the bottom of the second heat dissipation area (22) to one of the two sides of the second heat dissipation area (22), and the other set of the second heat dissipation fins (2211) extends from the bottom of the second heat dissipation area (22) to the other of the two sides of the second heat dissipation area (22).
5. The heat dissipating air duct according to claim 4, wherein The two sets of the second heat dissipation fins (2211) are arranged symmetrically.
6. The heat dissipating air duct according to claim 2, wherein, The number of the second heat dissipation fins (2211) is the same as the number of the first heat dissipation fins (2111), and the second heat dissipation fins (2211) and the first heat dissipation fins (2111) are aligned one by one at the junction of the first heat dissipation area (21) and the second heat dissipation area (22).
7. The heat dissipation duct as described in claim 6, characterized in that, The second heat dissipation fins (2211) that are aligned one-to-one with the first heat dissipation fins (2111) are either an integral structure or a separate structure.
8. The heat dissipation duct as described in claim 1, characterized in that, The first heat dissipation part (211) includes at least two third heat dissipation fins (2112) extending from the bottom of the first heat dissipation area (21) toward the top of the first heat dissipation area (21). and / or The first heat dissipation part (211) includes at least two heat dissipation columns (2212).
9. The heat dissipation duct as described in claim 8, characterized in that, The cross-sectional shape of the heat dissipation column (2212) is circular, elliptical, polygonal, or irregular.
10. The heat dissipation duct as described in any one of claims 1 to 9, characterized in that, The radiator (2) includes a first radiator (210) and a second radiator (220). The heat dissipation side of the first radiator (210) corresponds to the first heat dissipation area (21), and the heat dissipation side of the second radiator (220) corresponds to the second heat dissipation area (22).
11. The heat dissipation duct as described in claim 10, characterized in that, The first radiator (210) and the second radiator (220) are either an integral structure or a separate structure.
12. The heat dissipating air duct according to any one of claims 1 to 9, wherein The radiator (2) is made of aluminum, copper, aluminum alloy or copper alloy.
13. A power conversion device, characterized in that, Includes the heat dissipation air duct as described in any one of claims 1 to 12.