Heat dissipation device and terminal equipment

Abstract

The utility model relates to a heat dissipation device and a terminal device. The terminal device is provided with the heat dissipation device. The fan blades which rotate to work drive air flow used for heat dissipation to flow to the air outlet, but the air flow generated by the fan blades can automatically form a large-flow area with high air flow and a small-flow area with small air flow on the air outlet, and therefore the sparse fin sets correspond to the small-flow area and have wide sparse intervals, and therefore the heat dissipation efficiency is improved. Air flow can be promoted to pass through smoothly, and a good heat dissipation effect can be kept even under the condition that the air volume is small; the dense fin group corresponds to the large flow area and has a small dense interval, so that the heat exchange interface in unit space is increased, the heat dissipation efficiency is greatly improved, the large flow area of the air volume is fully utilized, the saturation phenomenon is prevented, the heat dissipation pertinence of the product is improved, and the heat dissipation performance of the product is greatly enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of heat dissipation, especially to heat dissipation device and terminal equipment. BACKGROUND

[0002] In the field of modern science and technology and industry, the efficiency of the heat dissipation system directly affects the performance, reliability and life of the equipment, especially in high-power electronic equipment, data center servers, LED lighting and various precision instruments. One of the core components of the heat dissipation system is the fan, which improves the heat exchange efficiency by forced air flow to carry away heat and keep the equipment temperature within a safe range. However, there are some inherent limitations in the traditional fan design and its cooperation with the radiator (fin structure), which limit the heat dissipation efficiency and increase the energy consumption.

[0003] Specifically, the working principle of the fan is based on the rotation of the motor-driven blades to produce directional airflow, but the air volume for heat dissipation is often unevenly distributed, which not only reduces the overall heat dissipation efficiency, but also may cause "saturation" in areas with excessive air volume, i.e. beyond a certain threshold, the increased air volume has little contribution to further improving the heat dissipation effect, forming an inefficient use of energy. At the same time, in areas with low air volume, the effective heat dissipation area of the fins is not fully utilized, resulting in limited heat dissipation effect. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide a heat dissipation device and terminal equipment that can solve the problem of poor heat dissipation effect.

[0005] The utility model provides a heat dissipation device in the first aspect, it includes:

[0006] The shell is provided with at least one air outlet;

[0007] The fan blade is rotationally arranged on the shell, and the fan blade is used to drive the gas into the shell and blow out along the air outlet during rotation, thereby forming at least one large flow area and at least one small flow area at the air outlet; and

[0008] The heat dissipation assembly includes at least one heat dissipation mechanism, each heat dissipation mechanism is one-to-one corresponding to each air outlet, each heat dissipation mechanism includes at least one sparse fin group and at least one dense fin group, each sparse fin group is one-to-one corresponding to each small flow area, and each dense fin group is one-to-one corresponding to each large flow area, the sparse fin group is provided with a plurality of sparse intervals for air flow, the dense fin group is provided with a plurality of dense intervals for air flow, and the width of the sparse interval is greater than the width of the dense interval.

[0009] Preferably, a plurality of said air outlets are formed on the shell, and at least one said large flow area and at least one said small flow area are formed on each said air outlet when the fan blade rotates.

[0010] The heat dissipation assembly comprises a plurality of said heat dissipation mechanisms, and each said air outlet is provided with one said heat dissipation mechanism. The sparse fin group on each said heat dissipation mechanism is arranged in one-to-one correspondence with the small flow area, and the dense fin group on each said heat dissipation mechanism is arranged in one-to-one correspondence with the large flow area.

[0011] Preferably, two said air outlets are formed on the shell, and the central axis of one said air outlet and the central axis of the other said air outlet intersect at an angle of 45°-125°; and / or

[0012] The width of one said air outlet is greater than the width of the other said air outlet.

[0013] Preferably, the widths of the large flow areas are not equal; and / or

[0014] The widths of at least part of the large flow areas are equal; and / or

[0015] The widths of the small flow areas are not equal; and / or

[0016] The widths of at least part of the small flow areas are equal.

[0017] Preferably, each said air outlet comprises a first air outlet, and the first air outlet has one said small flow area and two said large flow areas, and the small flow area is located between the two large flow areas.

[0018] Among them, the small flow area is provided with the sparse fin group, and the two large flow areas are each provided with the dense fin group.

[0019] Preferably, in the first air outlet, the width of the sparse interval in one said dense fin group is D1, the width of the sparse interval in the other said dense fin group is D3, and the width of the sparse interval in the sparse fin group is D2.

[0020] Among them, D1

[0021] Preferably, each said air outlet comprises a second air outlet, and the second air outlet has three said small flow areas and two said large flow areas, and the three small flow areas and the two large flow areas are arranged in the same direction one by one in a staggered manner.

[0022] Among them, the three said small flow areas are each provided with the sparse fin group, and the two said large flow areas are each provided with the dense fin group.

[0023] Preferably, on the second air outlet, the widths of the three sparse intervals are D4, D6 and D8 respectively, and the widths of the two dense intervals are D5 and D7 respectively;

[0024] wherein D4>D5, D4>D7; and / or

[0025] D6>D5, D6>D7; and / or

[0026] D8>D5, D8>D7; and / or

[0027] D4=D6=D8; and / or

[0028] D5=D7.

[0029] Preferably, the heat dissipation mechanism includes a plurality of fins, some of the fins are arranged one by one at the sparse interval to form the sparse fin group, and some of the fins are arranged one by one at the dense interval to form the dense fin group.

[0030] A second aspect of the present invention provides a terminal device having a heating area. The heating area is provided with a heat dissipation device as described in any one of the above technical solutions, and the heat dissipation device is used to dissipate heat from the heating area.

[0031] The implementation of this utility model has the following beneficial effects:

[0032] The present invention relates to a heat dissipation device and a terminal device, wherein the terminal device is provided with a heat dissipation device. The rotating fan blades drive the airflow for heat dissipation to flow to the air outlet, but the airflow generated by the fan blades will automatically form a large flow area with a higher airflow and a small flow area with a smaller airflow on the air outlet. For this, the present invention corresponds to the small flow area through a sparse fin group, and the sparse fin group has a wider sparse interval, which can promote the smooth passage of airflow and maintain a good heat dissipation effect even when the air volume is small; and the dense fin group corresponds to the large flow area, and the dense fin group has a smaller dense interval, which increases the heat exchange interface per unit space, greatly improves the heat dissipation efficiency, makes full use of the large flow area with a larger air volume, prevents the occurrence of the "saturation" phenomenon, improves the heat dissipation pertinence of the product, and greatly enhances the heat dissipation performance of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0034] Figure 1 It is a schematic structural diagram of the heat dissipation device in some embodiments of the present utility model;

[0035] Figure 2 is a structural schematic view of the heat dissipation assembly in some embodiments of the present application;

[0036] Figure 3 is a structural schematic view of the heat dissipation assembly from another angle Figure 2

[0037] Figure 4 is a structural schematic view of the heat dissipation assembly in some embodiments of the present application;

[0038] Figure 5 is a structural schematic view of the heat dissipation assembly from another angle Figure 4 DETAILED DESCRIPTION

[0039] Embodiments of the present application will be described in more detail by referring to the drawings. Although embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present application more thorough and complete, and to convey the scope of the present application to those skilled in the art.

[0040] It should be understood that although the terms "first", "second", "third", etc. can be used in this application to describe various information, these information should not be limited by these terms. These terms are only used to distinguish the same type of information from each other. For example, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information without departing from the scope of the present application. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0041] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0042] ​​Unless otherwise clearly indicated and limited, the terms "mounting", "connecting", "connection", "fixing" and the like should be interpreted broadly, for example, can be fixed connection, can also be detachable connection or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0043] Figure 1 The heat dissipation device 10 in some embodiments of the utility model is shown, which is used for dissipating heat of the heating components or some heating areas.

[0044] As shown in Figure 1 , the heat dissipation device 10 includes a shell 1, a fan blade 2 and a heat dissipation assembly 3, and the fan blade 2 and the heat dissipation assembly 3 are arranged on the shell 1. Understandably, the shell 1 is used for mounting the remaining parts of the heat dissipation device 10 on the one hand, and is also used for guiding the gas to flow along the predetermined track. The fan blade 2 is used to drive the gas flow in the rotating process to form the heat dissipation airflow, and the fan blade 2 can be driven by a motor or other components capable of outputting torque in related technologies. The heat dissipation assembly 3 is used for heat exchange with the heating components or the heating area on the one hand, and is also used for heat exchange with the heat dissipation airflow on the other hand, so as to achieve the purpose of heat dissipation.

[0045] As shown in Figure 1 , at least one air outlet 11 is formed on the shell 1. The fan blade 2 is rotatably arranged on the shell 1, and the fan blade 2 is used to drive the gas to enter the shell 1 and blow out along the air outlet 11 when rotating, so as to form at least one large flow area 12 and at least one small flow area 13 at the air outlet 11.

[0046] Understandably, the shape and size of the shell 1 are set according to the requirements of the actual application scene. The surface of the shell 1 is provided with at least one air outlet 11, and each air outlet 11 is used for discharging the heat dissipation airflow in the shell 1. The fan blade 2 can adjust the rotating speed according to the actual heat dissipation requirement to adapt to different working loads and environmental conditions.

[0047] It should be noted that no matter what shape the fan blade is, when the heat dissipation airflow generated by the rotation of the fan blade 2 flows along the shell 1 to each air outlet 11, a plurality of areas with different air flow rates, i.e. the large flow area 12 and the small flow area 13, will be formed on each air outlet 11. Among them, the air flow rate flowing through the large flow area 12 is greater than the air flow rate flowing through the small flow area 13.

[0048] As shown in Figures 1 to 5As shown, the heat dissipation assembly 3 includes at least one heat dissipation mechanism 31, and each heat dissipation mechanism 31 is arranged in a one-to-one correspondence at each air outlet 11. Each heat dissipation mechanism 31 includes at least one sparse fin group 311 and at least one dense fin group 312. Each sparse fin group 311 is arranged in a one-to-one correspondence at each small flow area 13, and each dense fin group 312 is arranged in a one-to-one correspondence at each large flow area 12. The sparse fin group 311 is provided with a number of sparse intervals 3111 for air flow, and the dense fin group 312 is provided with a number of dense intervals 3121 for air flow, and the width of the sparse interval 3111 is greater than the width of the dense interval 3121.

[0049] It can be understood that the number of the air outlets 11 is configured to be equal to the number of the heat dissipation mechanisms 31 , and each air outlet 11 is provided with a heat dissipation mechanism 31 .

[0050] The sparse fin group 311 is set in the small flow area 13, so that the sparse fin group 311 can dissipate heat for the small flow area 13 with a small heat dissipation air flow. The sparse intervals 3111 between the fins on the sparse fin group 311 are relatively wide, so that the area with a relatively low heat dissipation air flow (small flow area 13) can also maintain sufficient heat dissipation airflow patency, ensuring that even under low wind pressure, air can still effectively pass through the sparse intervals 3111 (i.e., the intervals between the fins) and contact the fin surface for heat exchange. This design avoids the flow restriction caused by the airflow with a small flow rate at too dense intervals, avoids local overheating, makes full use of the airflow flowing through the small flow area 13, and improves the overall heat dissipation efficiency.

[0051] In contrast, dense fin group 312, located in high-flow area 12, has denser spacing 3121 that is narrower than sparser spacing 3111. This means that in high-airflow areas, more cooling fins are packed into a single unit space. This high-density fin structure significantly increases the heat exchange interface. Furthermore, the high-density fin arrangement maintains excellent heat dissipation due to the higher airflow.

[0052] In summary, the heat dissipation assembly 3 can provide the most suitable heat dissipation conditions based on the actual airflow characteristics in different areas of the air outlet 11. The combined use of the sparse fin group 311 and the dense fin group 312 not only optimizes the utilization efficiency of the heat dissipation airflow and reduces unnecessary energy consumption, but also significantly improves the response speed and heat dissipation capacity of the overall heat dissipation system.

[0053] In addition, the present invention can be applied to components, devices, mechanisms, equipment or systems in different fields that require heat dissipation.

[0054] like Figure 1 As shown, in some embodiments of the heat dissipation device 10, a plurality of air outlets 11 are provided on the housing 1, and when the fan blades 2 rotate, at least one large flow area 12 and at least one small flow area 13 are formed on each air outlet 11;

[0055] The heat dissipation assembly 3 comprises a plurality of heat dissipation mechanisms 31, and each air outlet 11 is provided with a heat dissipation mechanism 31. The sparse fin groups 311 on the heat dissipation mechanisms 31 are one-to-one correspondingly arranged in the small flow area 13, and the dense fin groups 312 on the heat dissipation mechanisms 31 are one-to-one correspondingly arranged in the large flow area 12.

[0056] It can be understood that the shell 1 is provided with a plurality of air outlets 11, which can adapt to various different heat dissipation needs in actual application, especially for those devices with multiple heat sources or large area heating surfaces. Each air outlet 11 plays an independent and key role, ensuring that heat can be efficiently dissipated from multiple points, avoiding the problem of local overheating that may be caused by single-point heat dissipation. Moreover, the position and size of each air outlet 11 are optimized according to the layout of the internal heating elements and the heat flow distribution.

[0057] Each heat dissipation mechanism 31 precisely corresponds to an air outlet 11, so as to make corresponding structural settings for the different air volume distribution of each air outlet 11, so that the heat dissipation device 3 can adaptively adjust each air outlet 11 to ensure the heat dissipation effect.

[0058] As shown in FIG. 1, Figure 1 In some embodiments of the heat dissipation device 10, two air outlets 11 are provided on the shell 1, and the center axis of one air outlet 11 intersects with the center axis of the other air outlet 11 at an angle θ of 45°-125° (L1 is the center axis of the first air outlet 111, and L2 is the center axis of the second air outlet 112).

[0059] It can be understood that adjusting the relative position and angle of the air outlets through the content of this embodiment can improve the heat dissipation efficiency; in particular, it can avoid interference between the heat exchange air flows, ensuring the heat dissipation effect. Moreover, through this embodiment, the air flow can be balanced to a certain extent, reducing the noise and vibration generated when the air flow passes through the air outlet.

[0060] As shown in FIG. 1, Figure 1 The width W1 of one air outlet 11 is greater than the width W2 of the other air outlet 11.

[0061] It can be understood that the air outlets 11 with different widths can correspond to products with different appearance requirements or heat dissipation needs. In some embodiments, the width of the air outlet 11 may be different due to the structural arrangement of the product in actual installation.

[0062] Specifically, the width of each large flow area 12 and the width of each small flow area 13 can be flexibly set, and the width of the two at least has the following implementation ways:

[0063] In a first embodiment, in some embodiments of the heat dissipation device 10 , the widths of the major flow regions 12 are not equal.

[0064] In a second embodiment, at least part of the large flow area 12 has the same width.

[0065] In a third embodiment, the widths of the small flow areas 13 are not equal.

[0066] In a fourth embodiment, at least some of the small flow areas 13 have the same width.

[0067] It should be noted that the housing 1 and fan blades 2 of this product can be configured to different design and manufacturing specifications based on actual application requirements. Accordingly, different specifications will produce large flow areas 12 and small flow areas 13 of different widths, different numbers, and different arrangement orders at the air outlet 11. Furthermore, each large flow area 12 and each small flow area 13 is provided with a heat dissipation mechanism 31 of different specifications.

[0068] Of course, the specifications of the dense fin groups 312 corresponding to the large flow areas 12 of the same width can be configured to be the same, and the specifications of the sparse fin groups 311 corresponding to the small flow areas 13 of the same width can also be configured to be the same.

[0069] like Figures 1 to 3 As shown, in some embodiments of the heat dissipation device 10, each air outlet 11 includes a first air outlet 111, and the first air outlet 111 has a small flow area 13 and two large flow areas 12, and the small flow area 13 is located between the two large flow areas 12; wherein, the small flow area 13 is provided with a sparse fin group 311, and the two large flow areas 12 are each provided with a dense fin group 312.

[0070] It is understandable that in certain manufacturing specifications of the heat dissipation device 10, a small flow area 13 and two large flow areas 12 are formed on the first air outlet 111, and the small flow area 13 is located between the two large flow areas 12. To address this, the heat dissipation mechanism 31 is correspondingly configured to include a sparse fin group 311 and two dense fin groups 312, and the sparse fin group 311 is correspondingly located between the two dense fin groups 312.

[0071] In this way, the heat dissipation air flow rate of different areas of the first air outlet 111 can be adapted accordingly, thereby ensuring the heat dissipation performance of the product.

[0072] like Figure 2 and Figure 3As shown in some embodiments of the heat dissipation device 10, on the first air outlet 111, the width of the dense interval 3121 in one of the dense fin groups 312 is D1, the width of the dense interval 3121 in the other dense fin group 312 is D3, and the width of the sparse interval 3111 in the sparse fin group 311 is D2; wherein D1 < D2, and D3 < D2.

[0073] It should be noted that the narrower interval means that the airflow channel between the fins is more compact, although it may slightly increase the fluid resistance, but significantly increases the heat exchange interface in unit volume, so that the heat can be carried away more effectively at high wind speed, and the utilization of the air flow for heat dissipation is fully utilized.

[0074] It should be further noted that in other embodiments of D1 < D2, D3 < D2, D1 can be further configured to be equal to D3, that is, D1 = D3. In this way, the interval size of the two dense fin groups 312 remains the same, which is beneficial to the consistency and simplification of production and manufacturing, and also ensures the balance of the heat dissipation capacity of the two large flow areas 12, which is suitable for application scenarios with higher requirements for heat dissipation uniformity.

[0075] As shown in some embodiments of the heat dissipation device 10, each air outlet 11 includes a second air outlet 112, and the second air outlet 112 has three small flow areas 13 and two large flow areas 12, and the three small flow areas 13 and the two large flow areas 12 are arranged in the same direction one by one. Figure 1 , Figure 4 and Figure 5 As shown in some embodiments of the heat dissipation device 10, each air outlet 11 includes a second air outlet 112, and the second air outlet 112 has three small flow areas 13 and two large flow areas 12, and the three small flow areas 13 and the two large flow areas 12 are arranged in the same direction one by one.

[0076] It can be understood that in some manufacturing specifications of the heat dissipation device 10, the three small flow areas 13 and the two large flow areas 12 are arranged alternately, which means that the small flow area 13 and the large flow area 12 appear alternately in a certain direction.

[0077] Therefore, for the foregoing more complex air volume distribution structure, the embodiments of the present application can utilize the air flow of different positions more finely by implementing the alternate layout of the sparse fin group 311 and the dense fin group 312 on the second air outlet 112, thereby improving the utilization rate of the air flow for heat dissipation.

[0078] It should be noted that the air flow partition of the air outlet 11 is more complex, and the area division can be divided into different precision levels according to the actual application requirements, and the fin interval of the heat dissipation mechanism 31 is set to a higher precision level.

[0079] As shown in some embodiments of the heat dissipation device 10, each air outlet 11 includes a second air outlet 112, and the second air outlet 112 has three small flow areas 13 and two large flow areas 12, and the three small flow areas 13 and the two large flow areas 12 are arranged in the same direction one by one. Figure 4 , Figure 5As shown, in some embodiments of the heat dissipation device 10, on the second air outlet 112, three sparse intervals 3111 are provided with widths D4, D6, and D8, respectively, and two dense intervals 3121 are provided with widths D5 and D7, respectively.

[0080] wherein D4>D5, D4>D7; and / or

[0081] D6>D5, D6>D7; and / or

[0082] D8>D5, D8>D7; and / or

[0083] D4=D6=D8; and / or

[0084] D5=D7.

[0085] It can be understood that the sparse fin groups 311 in the three small flow areas 13 have widths D4, D6 and D8 respectively. These wide intervals are intended to ensure sufficient airflow and reduce resistance even at relatively low wind speeds. At the same time, according to actual application requirements, the sparse intervals 3111 in each of the three small flow areas 13 can be further configured to be equal (D4 = D6 = D8). This helps to achieve consistent airflow distribution in the small flow areas, while also eliminating the cost of separate mold manufacturing for each part, and correspondingly adapting to products with different heat dissipation requirements.

[0086] The spacing between the dense fin groups 312 in the two high-flow zones 12 is defined by widths D5 and D7, respectively. These narrow spacings are designed to increase the heat exchange area in high-velocity areas, thereby more efficiently transferring heat. Depending on the application requirements, the spacing 3121 between the two dense fin groups 312 can be configured to be equal (D5 = D7) to ensure uniform and efficient heat exchange performance across the high-flow zones, improving the product's heat dissipation.

[0087] like Figure 2 and Figure 4 As shown, in some embodiments of the heat dissipation device 10, the heat dissipation mechanism 31 includes a plurality of fins 313, some of the fins 313 are arranged one by one at sparse intervals 3111 to form a sparse fin group 311, and some of the fins 313 are arranged one by one at dense intervals 3121 to form a dense fin group 312.

[0088] It is understood that fins 313 can be configured using existing technology, primarily for heat exchange with the heat source and with the heat dissipation airflow, thereby transferring heat from the heat source to the heat dissipation airflow to achieve cooling. Fins 313 can be standardized components, or their shape and specifications can be selected and configured based on actual heat dissipation requirements.

[0089] The terminal device of the present invention has a heating area, and a heat dissipation device 10 is provided on the heating area. The heat dissipation device 10 is used to dissipate heat from the heating area.

[0090] It can be understood that terminal devices include various devices in different fields of related technologies (such as laptops, desktop computers, professional workstations, data center servers, storage devices, cooling cabinets, electrical appliances, LED display screens and lighting systems, mobile communication base stations, medical imaging equipment, electric vehicle battery packs, etc.). In fact, any electronic equipment or precision instrument that requires efficient thermal management to ensure stability and extend service life can adopt the heat dissipation device of the present invention.

[0091] It should be noted that the heating area on the terminal device includes but is not limited to an area on the terminal device that generates heat and needs to be dissipated.

[0092] The implementation of this utility model has the following beneficial effects:

[0093] The present invention relates to a heat dissipation device and a terminal device, wherein the terminal device is provided with a heat dissipation device. The rotating fan blades drive the airflow for heat dissipation to flow to the air outlet, but the airflow generated by the fan blades will automatically form a large flow area with a higher airflow and a small flow area with a smaller airflow on the air outlet. For this, the present invention corresponds to the small flow area through a sparse fin group, and the sparse fin group has a wider sparse interval, which can promote the smooth passage of airflow and maintain a good heat dissipation effect even when the air volume is small; and the dense fin group corresponds to the large flow area, and the dense fin group has a smaller dense interval, which increases the heat exchange interface per unit space, greatly improves the heat dissipation efficiency, makes full use of the large flow area with a larger air volume, prevents the occurrence of the "saturation" phenomenon, improves the heat dissipation pertinence of the product, and greatly enhances the heat dissipation performance of the product.

[0094] The scheme of the present invention has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have their own emphases. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also be aware that the actions and modules involved in the description are not necessarily required for the present invention. In addition, it can be understood that the steps in the method of the embodiment of the present invention can be adjusted in sequence, merged and deleted according to actual needs, and the modules in the device of the embodiment of the present invention can be merged, divided and deleted according to actual needs.

[0095] The above has described various embodiments of the present application, the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical application, or improvement to the technology in the market, or to enable other ordinary skilled in the art to understand the embodiments disclosed herein.

Claims

1. A heat dissipation device, characterized in that: include: a housing, wherein at least one air outlet is provided on the housing; a fan blade rotatably mounted on the housing, the fan blade being configured to drive air into the housing and blow air out along the air outlet during rotation, thereby forming at least one high flow area and at least one low flow area at the air outlet; and The heat dissipation component includes at least one heat dissipation mechanism, each of the heat dissipation mechanisms is arranged in a one-to-one correspondence at each of the air outlets, each of the heat dissipation mechanisms includes at least one sparse fin group and at least one dense fin group, each of the sparse fin groups is arranged in a one-to-one correspondence at each of the small flow areas, and each of the dense fin groups is arranged in a one-to-one correspondence at each of the large flow areas, the sparse fin group is provided with a number of sparse intervals for air flow, and the dense fin group is provided with a number of dense intervals for air flow, and the width of the sparse interval is greater than the width of the dense interval.

2. The heat dissipation device according to claim 1, characterized in that: The housing is provided with a plurality of air outlets, and when the fan blades rotate, at least one large flow area and at least one small flow area are formed on each air outlet; The heat dissipation assembly includes a plurality of heat dissipation mechanisms, each air outlet is provided with a heat dissipation mechanism, the sparse fin groups on each heat dissipation mechanism are arranged in a one-to-one correspondence in the small flow area, and the dense fin groups on each heat dissipation mechanism are arranged in a one-to-one correspondence in the large flow area.

3. The heat dissipation device according to claim 2, characterized in that: The housing is provided with two air outlets, wherein the central axis of one of the air outlets intersects with the central axis of the other air outlet to form an angle of 45° to 125°; and / or The width of one of the air outlets is greater than the width of the other air outlet.

4. The heat dissipation device according to claim 1, wherein: The widths of the large flow areas are not equal; and / or At least some of the high flow areas have equal widths; and / or The widths of the small flow areas are not equal; and / or At least part of the low flow areas have equal widths.

5. The heat dissipation device according to any one of claims 1 to 4, characterized in that: Each of the air outlets includes a first air outlet having one small flow area and two large flow areas, and the small flow area is located between the two large flow areas; Wherein, the small flow area is provided with the sparse fin group, and the two large flow areas are each provided with the dense fin group.

6. The heat dissipation device according to claim 5, characterized in that: On the first air outlet, the width of the dense intervals in one of the dense fin groups is set to D1, the width of the dense intervals in another dense fin group is set to D3, and the width of the sparse intervals in the sparse fin group is set to D2; Wherein, D1<D2, D3<D2; and / or D1=D3.

7. The heat dissipation device according to any one of claims 1 to 4, characterized in that: Each of the air outlets includes a second air outlet, and the second air outlet has three of the small flow areas and two of the large flow areas, and the three of the small flow areas and the two of the large flow areas are staggered one by one along the same direction; Wherein, each of the three small flow areas is provided with the sparse fin group, and each of the two large flow areas is provided with the dense fin group.

8. The heat dissipation device according to claim 7, characterized in that: On the second air outlet, the widths of the three sparse intervals are set to D4, D6 and D8 respectively, and the widths of the two dense intervals are set to D5 and D7 respectively; wherein D4>D5, D4>D7; and / or D6>D5, D6>D7; and / or D8>D5, D8>D7; and / or D4=D6=D8; and / or D5=D7.

9. The heat dissipation device according to any one of claims 1 to 4, characterized in that: The heat dissipation mechanism includes a plurality of fins, some of the fins are arranged one by one at the sparse intervals to form the sparse fin group, and some of the fins are arranged one by one at the dense intervals to form the dense fin group.

10. A terminal device, characterized in that: The terminal device has a heating area, and the heating area is provided with the heat dissipation device according to any one of claims 1 to 9, and the heat dissipation device is used to dissipate heat from the heating area.

Images