Radiators, heat dissipation devices and dryers

Abstract

This application relates to the field of household appliance technology, and discloses a radiator for a clothes dryer. The radiator includes: a base, a first side surface for heat exchange with the heating element of the clothes dryer, and a second side surface adjacent to or opposite to the first side surface; wherein the thickness of the base is a first thickness h1, which is greater than or equal to 4 mm and less than or equal to 10 mm; and a plurality of ribs spaced apart on the second side surface. This configuration optimizes the temperature distribution of the radiator by improving the thickness of the radiator base, thereby avoiding uneven radiator temperature without increasing costs. This application also discloses a heat dissipation device and a clothes dryer.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, such as a radiator, a heat dissipation device, and a clothes dryer. Background Technology

[0002] With societal development, clothes dryers are becoming increasingly popular. The working principle of a clothes dryer's heat exchanger is the exchange of heat between two fluids at different temperatures. Furthermore, to improve the user experience, electronic components such as capacitors are often incorporated into the dryer. These capacitors control the dryer's operating mode, enhancing its intelligence. However, during operation, these electronic components generate a significant amount of heat, which can affect the dryer's normal operation.

[0003] Heat sinks are typically installed to cool electronic components. In related technologies, a heat sink for industrial clothes dryers is proposed. This heat sink utilizes a base, connecting cylindrical tubes, and radial heat sinks, combined with a heat-conducting layer and a cooling fan, to effectively dissipate heat from the electronic components.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0005] In related technologies, although the thermal conductivity of the base is improved by setting a thermal conductive layer, the inconsistent heating power of the chips at the bottom of the heat sink can lead to excessively high local temperatures and uneven heat dissipation.

[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0008] This disclosure provides a radiator, a heat dissipation device, and a clothes dryer, which can avoid uneven radiator temperature.

[0009] This disclosure provides a radiator for a clothes dryer, comprising a base and a plurality of fins. The base includes a first side for heat exchange with the heating element of the clothes dryer, and a second side adjacent to or opposite to the first side; wherein the thickness of the base is a first thickness h1, the first thickness h1 being greater than or equal to 4 mm and less than or equal to 10 mm; the plurality of fins are spaced apart on the second side.

[0010] The embodiments disclosed herein optimize the heat sink's temperature uniformity by limiting the thickness of the heat sink base to a suitable range, without requiring a dedicated heat-conducting layer. This avoids uneven heat sink temperature without increasing costs.

[0011] In some embodiments, the first thickness h1 is greater than or equal to 5 mm and less than or equal to 9 mm; wherein the first thickness h1 is 6 mm, 7 mm or 8 mm.

[0012] This can improve the heat dissipation efficiency of the radiator while avoiding uneven radiator temperature.

[0013] In some embodiments, the plurality of ribs includes a plurality of first ribs and second ribs arranged in parallel; wherein the distance between adjacent first ribs is a first distance d1, the distance between a second rib and an adjacent first rib is a second distance d2, and the first distance d1 is less than the second distance d2.

[0014] By non-uniformly arranging the fins used for scattering, the natural convection heat dissipation effect between the second fin and the first fin can be improved, which is beneficial to improving the heat dissipation efficiency of the radiator.

[0015] In some embodiments, the ratio of the second spacing d2 to the first spacing d1 is greater than 1 and less than or equal to 5; wherein the ratio of the second spacing d2 to the first spacing d1 is 1.5, 2, 2.5, 3, 3.5, 4 or 4.5.

[0016] This ratio allows the heat sink to achieve better heat dissipation. In some embodiments, the first spacing d1 is greater than or equal to 1.5 mm and less than or equal to 4.5 mm. The first spacing d1 can be 1.8 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, or 4.3 mm.

[0017] Making the first spacing d1 greater than or equal to 1.5mm can prevent the airflow velocity at the gaps between the multiple first fins from decreasing due to an excessively small first spacing. A too-small first spacing d1 also increases the manufacturing difficulty of the heat sink. With the overall volume of the heat sink remaining constant, making the first spacing d1 less than or equal to 4.5mm allows for an increase in the number of fins, thereby increasing the overall heat dissipation area and improving the heat dissipation effect. Therefore, making the first spacing d1 greater than or equal to 1.5mm and less than or equal to 4.5mm, especially when the first spacing d1 is 1.8mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, or 4.3mm, can increase the overall heat dissipation area of ​​the heat sink while ensuring the airflow velocity at the gaps between the multiple first fins 32, thus further improving the heat dissipation effect.

[0018] In some embodiments, the thickness of the rib is a second thickness h2, which is greater than or equal to 0.5 mm and less than or equal to 2 mm; wherein the second thickness h2 is 0.7 mm, 1 mm, 1.5 mm or 1.8 mm.

[0019] If the fin thickness is less than 0.5mm, the fin strength may be too weak, thus affecting the reliability of the heatsink. If the fin thickness is greater than 2mm, it will increase the material used for the fins, thereby increasing the production cost of the heatsink, and will also make the heatsink 30 too heavy. Therefore, making the second thickness h2 greater than or equal to 0.5mm and less than or equal to 2mm, especially the second thickness h2 being 0.7mm, 1mm, 1.5mm or 1.8mm, can improve the reliability of the heatsink while reducing the cost.

[0020] This disclosure also provides a heat dissipation device including: the radiator and the fan described above. The fan is disposed on one side of the radiator, and the fan blows air into the radiator, with the airflow passing through the gaps between the fins.

[0021] In some embodiments, the plurality of ribs includes a plurality of first ribs and second ribs arranged in parallel; wherein the distance between adjacent first ribs is a first distance d1, the distance between a second rib and an adjacent first rib is a second distance d2, and the first distance d1 is smaller than the second distance d2; wherein a fan is arranged corresponding to the plurality of first ribs, so that airflow passes more through the gaps between the first ribs. By arranging the fan 41 corresponding to the plurality of first ribs 32, forced convection can be achieved by the fan 41 at the gaps between the plurality of first ribs 32, thereby increasing the airflow velocity between the first ribs 32 and ensuring heat dissipation effect.

[0022] In some embodiments, the heat dissipation device further includes: a heat dissipation housing. The heat dissipation housing includes an accommodating space for mounting heat-generating components, a radiator, and a fan, and a water-blocking heat dissipation structure disposed outside the accommodating space; wherein the water-blocking heat dissipation structure is a louvered structure.

[0023] This disclosure also provides a clothes dryer comprising: a heating element and the above-described radiator, or a heating element and the above-described heat dissipation device.

[0024] The radiator, heat dissipation device, and clothes dryer provided in this disclosure can achieve the following technical effects:

[0025] In this embodiment of the disclosure, the heat sink base thickness can be improved to optimize the heat sink's temperature distribution, thereby avoiding uneven heat sink temperature without increasing costs.

[0026] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0027] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0028] Figure 1 This is a schematic diagram of the structure of a clothes dryer provided in an embodiment of this disclosure;

[0029] Figure 2 This is a schematic diagram of the structure of a heat dissipation device provided in an embodiment of this disclosure;

[0030] Figure 3 This is a schematic diagram of the structure of a heat dissipation shell provided in an embodiment of this disclosure;

[0031] Figure 4 This is a schematic diagram of the structure of a radiator and a fan provided in an embodiment of this disclosure;

[0032] Figure 5 This is a schematic diagram of the structure of a heat sink provided in an embodiment of this disclosure.

[0033] Figure label:

[0034] 11: Clothes dryer; 12: Heat dissipation device; 13: Heating element;

[0035] 20: Heat dissipation shell; 21: Water-blocking and heat dissipation structure; 22: Accommodation space; 23: Positioning ribs;

[0036] 30: Radiator; 31: Base; 311: First side; 312: Second side; 32: First fin; 321: First air duct; 33: Second fin; 331: Second air duct;

[0037] 41: Fan. Detailed Implementation

[0038] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0039] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0040] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0041] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0042] Unless otherwise stated, the term "multiple" means two or more.

[0043] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0044] Figure 1 A clothes dryer 11 is shown, which includes a heating element 13 and a heat dissipation device 12. The heating element 13 includes electronic components such as capacitors and heating coils within the clothes dryer 11. The heat dissipation device 12 is disposed opposite to the heating element 13 to dissipate heat from the heating element 13.

[0045] like Figures 2 to 4 As shown, the heat dissipation device 12 includes a heat dissipation shell, a heat sink 30, and a fan 41. One side of the heat sink 30 is close to the heat-generating component 13 and exchanges heat with the heat-generating component 13. The fan 41 is provided on the other side of the heat sink 30, and the fan 41 blows air into the heat sink 30. The airflow passes through the gaps between the fins of the heat sink 30 and flows to the area where the heat-generating component 13 is located.

[0046] Figure 3 A heat dissipation housing 20 is shown, which includes a housing space 22 for mounting a heat-generating component 13, a radiator 30, and a fan 41, and a water-blocking heat dissipation structure 21 disposed outside the housing space 22. The water-blocking heat dissipation structure 21 is a louvered structure.

[0047] Specifically, the heat sink housing 20 has positioning ribs 23 within its accommodating space 22. When the heat-generating component 13 is installed within the accommodating space 22, the positioning ribs 23 abut against the periphery of the heat-generating component 13 to prevent it from shaking. The heat sink 30 and fan 41 can be fixedly installed to the heat sink housing 20 using bolts or screws to prevent them from falling off. On the control circuit board, heat sources should be dispersed to avoid concentrating high-heat components and preventing localized overheating. High-heat components can be placed at the edge of the control board or near the air inlet to utilize airflow for heat dissipation. Simultaneously, heat-sensitive components should be isolated; that is, electrolytic capacitors, crystals, etc., should be kept away from heat sources.

[0048] The water-blocking and heat dissipation structure 21 is located on the outside of the accommodating space 22, above the fan 41, radiator 30, and heat-generating component 13, to prevent condensate from dripping onto the fan 41, radiator 30, and heat-generating component 13. Furthermore, by designing the water-blocking and heat dissipation structure 21 as a louvered panel, it is possible to prevent it from affecting the heat dissipation effect of the radiator 30 on the heat-generating component 13.

[0049] Optionally, the water-blocking and heat dissipation structure 21 is a flat plate structure, which is inclined and set on the outside of the accommodating space to prevent condensate from dripping onto the radiator, fan and heat-generating components.

[0050] like Figure 5As shown, the radiator 30 includes a base 31 and a plurality of fins. The base 31 includes a first side 311 that exchanges heat with the heating element 13 of the dryer 11, and a second side 312 disposed opposite to the first side 311. The thickness of the base 31 is a first thickness h1, which is greater than or equal to 4 mm and less than or equal to 10 mm. The plurality of fins are spaced apart on the second side 312.

[0051] Specifically, the capacitors and heating coils, among other electronic components, constitute the heating element 13 within the dryer 11. During continuous operation of the dryer 11, the radiator 30 dissipates heat from the heating element 13 to prevent it from overheating and malfunctioning. Multiple fins are spaced apart on the second side of the base, with the spacing between adjacent fins forming an air duct. This allows air to flow through the radiator via the air ducts between the fins, carrying away heat from the radiator.

[0052] Radiators are generally made of materials with high thermal conductivity, such as aluminum alloy, and the heat dissipation of the heating element in a clothes dryer varies from location to location. Therefore, existing radiators are prone to uneven heat distribution due to localized overheating, which negatively impacts heat dissipation efficiency. The embodiments disclosed in this disclosure, however, use a radiator base thickness greater than or equal to 4mm, which facilitates heat diffusion within the base, resulting in more even heat distribution. Conversely, using a base thickness less than or equal to 10mm not only reduces the radiator's size and overall production cost but also prevents excessively thick bases from causing prolonged heat transfer times that could affect heat dissipation efficiency. This design optimizes temperature uniformity by limiting the base thickness to a suitable range, eliminating the need for a dedicated heat-conducting layer and preventing uneven radiator temperatures without increasing costs.

[0053] like Figure 5 As shown, optionally, the first thickness h1 is greater than or equal to 5 mm and less than or equal to 9 mm. More specifically, the first thickness h1 is 5 mm, 6 mm, 7 mm, 8 mm, or 9 mm. This can improve the heat dissipation efficiency of the heat sink while avoiding uneven heat sink temperature.

[0054] Optionally, such as Figure 5 As shown, the fins of the radiator 30 include a plurality of first fins 32 and second fins 33 arranged in parallel.

[0055] Optionally, the fan 41 is an axial flow fan, located on one side of the radiator 30. The airflow direction of the fan 41 is defined as towards the radiator 30, and the airflow blown by the fan 41 is parallel to the fins of the radiator 30, so that the airflow from the fan 41 can pass through the gaps between the fins and flow through the radiator 30. Furthermore, the fan 41 is arranged corresponding to a plurality of first fins 32, that is, the fan 41 is located on one side of some or all of the first fins 32. This allows more airflow to pass through the gaps between the first fins 32.

[0056] By using a fan to create forced convection in the gaps between multiple first fins, the airflow velocity between the first fins can be increased, thereby improving the heat dissipation effect.

[0057] The distance between adjacent first ribs 32 is a first distance d1. The distance between a second rib 33 and an adjacent first rib 32 is a second distance d2.

[0058] Optionally, the first spacing d1 is smaller than the second spacing d2.

[0059] The interval between two adjacent first ribs 32 forms a first air duct 321, that is, the first distance d1 between adjacent first ribs 32 is the width of the first air duct 321. The interval between the second rib 33 and the adjacent first rib 32 forms a second air duct 331, that is, the second distance d2 between the second rib 33 and the adjacent first rib 32 is the width of the second air duct 331. In this way, by making the first distance d1 smaller than the second distance d2, the width of the second air duct 331 can be greater than the width of the first air duct 321, thereby making the ventilation volume in the second air duct 331 greater than the ventilation volume in the first air duct 321.

[0060] When the fan is positioned to correspond to multiple first fins, more airflow passes through the first air duct. This reduces the airflow through the second air duct. By increasing the ventilation volume in the second air duct, natural convection within the second air duct is enhanced, thereby improving the heat dissipation efficiency of the radiator.

[0061] like Figure 5 As shown, a second fin is provided on one side of the heat sink 30. In other alternative embodiments, multiple second fins may be provided on one side of the heat sink. Alternatively, one or more second fins may be provided on each side of the heat sink.

[0062] Optionally, when multiple second ribs are provided, the spacing between adjacent second ribs is a third spacing d3.

[0063] Optionally, the third spacing d3 is greater than or equal to the second spacing d2.

[0064] Optionally, the ratio of the second spacing d2 to the first spacing d1 is greater than 1 and less than or equal to 5. More specifically, the ratio of the second spacing d2 to the first spacing d1 is 1.5, 2, 2.5, 3, 3.5, 4, or 4.5. Such a ratio allows the heat sink to achieve better heat dissipation.

[0065] Optionally, the first spacing d1 is greater than or equal to 1.5 mm and less than or equal to 4.5 mm. Specifically, the first spacing d1 can be 1.8 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, or 4.3 mm. This spacing range allows the heat sink to achieve better heat dissipation.

[0066] Specifically, making the first spacing d1 greater than or equal to 1.5mm can prevent a decrease in airflow velocity at the gaps between the multiple first fins due to an excessively small first spacing. A smaller first spacing d1 also increases the manufacturing difficulty of the radiator 30. With the overall volume of the radiator remaining constant, making the first spacing d1 less than or equal to 4.5mm allows for an increase in the number of fins, thereby increasing the overall heat dissipation area and improving heat dissipation performance. Therefore, making the first spacing d1 greater than or equal to 1.5mm and less than or equal to 4.5mm, especially when the first spacing d1 is 1.8mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, or 4.3mm, can increase the overall heat dissipation area of ​​the radiator while ensuring the airflow velocity at the gaps between the multiple first fins, thus further improving the heat dissipation effect.

[0067] Optionally, the thickness of the fins is a second thickness h2, which is greater than or equal to 0.5 mm and less than or equal to 2 mm. More specifically, the second thickness h2 is 0.7 mm, 1 mm, 1.5 mm, or 1.8 mm. Such a thickness range allows the heatsink to achieve better heat dissipation.

[0068] Optionally, the thickness of both the first fin 32 and the second fin 33 is greater than or equal to 0.5 mm and less than or equal to 2 mm. The thicknesses of the first fin 32 and the second fin 33 can be the same or different. If the fin thickness is less than 0.5 mm, the fin strength may be too weak, thus affecting the reliability of the heat sink. If the fin thickness is greater than 2 mm, it will increase the material used for the fins, thereby increasing the production cost of the heat sink, and also making the weight of the heat sink 30 too large. Therefore, making the second thickness h2 greater than or equal to 0.5 mm and less than or equal to 2 mm, especially if the second thickness h2 is 0.7 mm, 1 mm, 1.5 mm, or 1.8 mm, can improve the reliability of the heat sink while reducing the cost.

[0069] Optionally, the thickness at the root of the rib is greater than the thickness at the end of the rib, that is, the thickness of the rib gradually decreases in the direction away from the base 31.

[0070] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A radiator for a clothes dryer, characterized in that, The heat sink includes: The base (31) includes a first side (311) that exchanges heat with the heating element (13) of the dryer (11), and a second side (312) that is adjacent to or opposite to the first side (311); wherein the thickness of the base (31) is a first thickness h1, the first thickness h1 being greater than or equal to 4 mm, and less than or equal to 10 mm; and, Multiple ribs are spaced apart on the second side surface (312).

2. The radiator according to claim 1, characterized in that, The first thickness h1 is greater than or equal to 5 mm and less than or equal to 9 mm; The first thickness h1 is 6mm, 7mm or 8mm.

3. The radiator according to claim 1, characterized in that, The plurality of ribs include a plurality of first ribs (32) and second ribs (33) arranged in parallel; The distance between adjacent first ribs (32) is the first distance d1, and the distance between the second rib (33) and adjacent first ribs (32) is the second distance d2. The first distance d1 is less than the second distance d2.

4. The radiator according to claim 3, characterized in that, The ratio of the second spacing d2 to the first spacing d1 is greater than 1 and less than or equal to 5; The ratio of the second spacing d2 to the first spacing d1 is 1.5, 2, 2.5, 3, 3.5, 4, or 4.

5.

5. The radiator according to claim 3, characterized in that, The first spacing d1 is greater than or equal to 1.5mm and less than or equal to 4.5mm; The first spacing d1 is 1.8mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm or 4.3mm.

6. The radiator according to any one of claims 1 to 5, characterized in that, The thickness of the rib is a second thickness h2, which is greater than or equal to 0.5 mm and less than or equal to 2 mm. The second thickness h2 is 0.7mm, 1mm, 1.5mm or 1.8mm.

7. A heat dissipation device, characterized in that, include: The heat sink as described in any one of claims 1 to 6; and, A fan (41) is disposed on one side of the radiator (30). The fan (41) blows air to the radiator (30), and the airflow passes through the radiator (30) through the gap between the fins.

8. The heat dissipation device according to claim 7, characterized in that, The plurality of ribs include a plurality of first ribs (32) and second ribs (33) arranged in parallel; The distance between adjacent first ribs (32) is a first distance d1, and the distance between the second rib (33) and adjacent first ribs (32) is a second distance d2, and the first distance d1 is less than the second distance d2; The fan (41) is arranged corresponding to a plurality of the first ribs (32) so that airflow passes more through the gaps between the first ribs (32).

9. The heat dissipation device according to claim 7, characterized in that, Also includes: The heat dissipation housing (20) includes a housing space (22) for mounting the heat-generating component (13), the radiator (30) and the fan (41), and a water-blocking heat dissipation structure (21) disposed outside the housing space (22); The water-blocking and heat dissipation structure (21) is a louver structure.

10. A clothes dryer, characterized in that, include: The heating element (13) and the radiator as described in any one of claims 1 to 6; Alternatively, the heat-generating component (13) and the heat dissipation device as described in any one of claims 7 to 9.

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