Heat dissipation shell and electronic device

Abstract

The utility model discloses a kind of heat dissipation shell and electronic equipment, it is related to heat dissipation field, wherein, heat dissipation shell, comprising: shell body, first air hole and second air hole are sequentially provided along the thickness direction of the shell body, the first air hole and the second air hole are respectively provided with multiple along the length direction of the shell body, form the partition of two first air holes between adjacent, form the blocking bone between two second air holes between adjacent, the blocking bone is set according to the first air hole, the partition is set according to the second air hole, the end portion between adjacent partition and the blocking bone facing each other forms heat dissipation hole.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation technology, and in particular to a heat dissipation shell and electronic device. Background Technology

[0002] Ventilation vents are the only effective way for fanless devices to dissipate heat through natural air convection, and are crucial for maintaining the safe temperature of internal components. Safety is paramount in consumer electronics, and their enclosure designs must comply with stringent safety regulations. Currently, the International Electrotechnical Commission standard IEC 62368-1-2018 has become the universal standard for the safety of audio, video, information, and communication technology equipment. This standard sets forth clear requirements for the size and structure of openings in the enclosure.

[0003] Under the aforementioned requirements, the opening ratio of the heat dissipation holes in the casing is low. This low opening ratio severely restricts the cross-sectional area for airflow, hindering air convection heat exchange between the equipment's interior and external environment. Heat easily accumulates inside the casing and cannot be dissipated in time, resulting in persistently high internal temperatures. Therefore, improving heat dissipation efficiency while meeting standard requirements has become an urgent technical problem to be solved. Utility Model Content

[0004] The main purpose of this utility model is to provide a heat dissipation shell, which aims to solve the technical problem of how to improve heat dissipation efficiency.

[0005] To achieve the above objectives, the heat dissipation housing proposed in this utility model includes: The outer shell body has a first vent and a second vent sequentially arranged along the thickness direction of the outer shell body. The first vent and the second vent are arranged in multiples along the length direction of the outer shell body. A partition is formed between two adjacent first vents and a baffle is formed between two adjacent second vents. The baffle is arranged corresponding to the first vent and the partition is arranged corresponding to the second vent. A heat dissipation hole is formed between the ends of adjacent partitions and baffles facing each other.

[0006] This invention also proposes an electronic device, including the heat dissipation housing as described above. Attached Figure Description

[0007] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0008] Figure 1A schematic diagram of the structure of an embodiment of the heat dissipation shell provided by this utility model; Figure 2 for Figure 1 A magnified view of a section at point A in the middle; Figure 3 A partial cross-sectional view of an embodiment of the heat dissipation shell provided by this utility model.

[0009] Explanation of icon numbers: 100. Outer shell; 110. Divider; 120. Support; 200. First vent; 300. Second vent; 400. Heat dissipation holes.

[0010] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0012] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0013] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0014] In existing technologies, the opening ratio of the heat dissipation holes in the casing is low. The low opening ratio severely restricts the cross-sectional area for air circulation, hinders air convection heat exchange between the inside and outside environment of the equipment, and heat is easily accumulated inside the casing and cannot be discharged in time, resulting in a persistently high internal temperature.

[0015] This utility model proposes a heat dissipation shell.

[0016] Please see Figures 1 to 3 In one embodiment of the present invention, the heat dissipation shell includes: a shell body 100, with a first vent 200 and a second vent 300 sequentially provided along the thickness direction of the shell body 100. The first vent 200 and the second vent 300 are provided in multiples along the length direction of the shell body 100. A partition 110 is formed between two adjacent first vents 200, and a baffle 120 is formed between two adjacent second vents 300. The baffle 120 is provided corresponding to the first vent 200, and the partition 110 is provided corresponding to the second vent 300. A heat dissipation hole 400 is formed between the ends of adjacent partitions 110 and baffles 120 facing each other.

[0017] The outer casing 100 can be made of plastic or metal and is mainly used in consumer electronic devices such as routers, game consoles, AV amplifiers, server chassis, smart speakers, or power adapters. The outer casing 100 can be of any shape, such as square or rectangular. Multiple first vents 200 and second vents 300 are provided along the length of the outer casing 100. It should be noted that multiple rows of first vents 200 and second vents 300 are provided along the width of the outer casing 100, spaced apart, so that the first vents 200 and second vents 300 cover the areas of the outer casing 100 that require heat dissipation and ventilation. In a specific implementation, the thickness direction of the outer casing 100 is configured as the Z-direction, the first vents 200 and second vents 300 are arranged spaced apart along the X-direction, and also spaced apart along the Y-direction.

[0018] In this embodiment, the partition 110 is the solid portion between the two first vents 200, and the baffle 120 is the solid portion between the two second vents 300. The first vents 200 and the second vents 300 are staggered, and the baffle 120 and the partition 110 are also staggered. Specifically, in the Z direction, the baffle 120 corresponds directly to the upper first vent 200, and the partition 110 corresponds directly to the lower second vent 300. A tortuous channel is formed between adjacent partitions 110 and baffles 120, and between their ends facing each other. This channel is configured as a heat dissipation hole 400 and connects the first vents 200 and the second vents 300. In this way, it is equivalent to forming two heat dissipation holes 400 by opening one first vent 200 and one baffle 120. The staggered partitions 110 and baffles 120 cause the width direction of the heat dissipation hole 400 to be inclined, which can improve the opening ratio of the heat dissipation hole 400 while meeting the opening standard requirements.

[0019] This utility model's technical solution involves sequentially opening a first vent 200 and a second vent 300 along the thickness direction of the outer shell body 100. A partition 110 is formed between two adjacent first vents 200, and a baffle 120 is formed between two adjacent second vents 300. The partition 110 corresponds to the second vent 300, and the baffle 120 corresponds to the first vent 200. Furthermore, a heat dissipation hole 400 is formed between the ends of adjacent partitions 110 and baffles 120 facing each other. Thus, there is one first vent 200 between two partitions 110 and one corresponding baffle 120. Two heat dissipation holes 400 are formed between one baffle 120 and two partitions 110. Compared with the prior art, this technical solution increases the number of heat dissipation holes 400 by cooperating with the baffle 120 and the partition 110, thereby increasing the opening rate of the heat dissipation holes 400.

[0020] It should be noted that the heat sink is installed on the device, which contains a heat source (such as a motherboard, chips, or other heat-generating components). The heat generated by the heat source is dissipated through the heat sink; that is, the heat passes through the heat dissipation holes 400 and is discharged to the outside of the heat sink. In one embodiment, the baffle 120 is located on the side of the housing body 100 facing the heat source. That is, from the outer surface of the housing body 100 to the inner surface, a first vent 200 and a second vent 300 are sequentially arranged. The hot air from the internal heat source flows through the second vent 300 and further through the heat dissipation holes 400 into the first vent 200, and finally is discharged to the outside through the first vent 200, completing the heat dissipation. In addition, the baffle 120 is positioned facing the internal heat source of the heat sink, which also ensures the aesthetics of the outer surface of the heat sink.

[0021] In one embodiment, both the first vent 200 and the second vent 300 are elongated holes. Under the premise of meeting standard requirements, elongated holes can increase the effective ventilation area and improve heat dissipation efficiency. In specific implementation, the first vent 200 and the second vent 300 are arranged at intervals along the X direction, and also extend along the Y direction to form elongated holes. Furthermore, the baffle 120 extends along the Y direction, corresponding to the first vent 200.

[0022] In one embodiment, the width of the heat dissipation hole 400 is L1, and L1 ≤ 1 mm. (See reference) Figure 3 As shown, the width of the heat dissipation hole 400 is the distance between the partition 110 and the baffle 120. The maximum width is set to 1mm to prevent standard test fingers or any objects that may cause electric shock from touching the internal live parts through the heat dissipation hole 400.

[0023] In one embodiment, the first vent 200 is provided with a first opening and a second opening, which are arranged opposite to each other. The first opening is close to the heat dissipation hole 400, and the width of the first opening is smaller than the width of the second opening.

[0024] Specifically, the first opening is located near the heat dissipation hole 400, and the second opening is located on the outer surface of the outer casing 100 facing outwards. In this embodiment, the first opening is the distance between the ends of the two partitions 110 near the heat dissipation hole 400, and the width of the second opening is the distance between the ends of the two adjacent partitions 110 on the outer surface of the outer casing 100. In this way, the contact surface with the external air on the surface of the outer casing 100 can be increased, thereby improving heat exchange efficiency and facilitating heat dissipation.

[0025] In one embodiment, the first vent 200 is funnel-shaped. In practice, the opening of the funnel-shaped structure faces outwards from the outer casing 100, i.e., away from the heat dissipation hole 400. The width of the second opening is greater than the width of the first opening, so that the gradually widening channel in the airflow direction from the first opening to the second opening helps reduce flow resistance, facilitating smoother flow of hot air and allowing a large amount to be "drawn" out of the outer casing 100, forming stable convection. Furthermore, referring to… Figure 3 As shown, the width of the second vent 300 is greater than the width of the heat dissipation hole 400. When the internal hot air flows through the second vent to the heat dissipation hole 400, the channel narrows sharply. According to the Venturi effect, the flow velocity at the heat dissipation hole 400 increases, and the airflow quickly passes through the heat dissipation hole 400 and enters the first vent 200. The first vent 200 is a gradually expanding channel, which helps a large amount of airflow to pass through, thus helping to dissipate heat.

[0026] Furthermore, the width of the first opening is L2, and L2 = 2mm. While ensuring that the width of the heat dissipation hole 400 meets the standard requirements, the width of the first opening being greater than the width of the heat dissipation hole 400 can improve airflow efficiency. Additionally, a baffle 120 is provided at one end corresponding to the first vent 200, forming the heat dissipation hole 400 between the baffle 120 and the partition 110, thereby increasing the opening ratio and heat dissipation efficiency of the heat dissipation hole 400.

[0027] In one embodiment, the inner wall of the first vent 200 is inclined. It should be noted that the inner wall here refers to the two opposing sidewalls in the width direction (X direction) of the first vent 200. The inclination of one or both sidewalls of the first vent 200 creates a gradually widening channel in the direction of airflow for heat dissipation, thereby improving heat dissipation efficiency. See the above description for details, which will not be elaborated further here. Additionally, the inclined sidewalls can also meet other design requirements regarding the orientation of the first vent 200.

[0028] In one embodiment, the centerline of the baffle 120 coincides with the centerline of the first vent 200. In the thickness direction of the outer shell body 100 (i.e., the Z-axis direction), the baffle 120 bisects the projection of the first vent 200 in this direction, thereby making the width of the heat dissipation holes 400 on both sides of the baffle 120 consistent, avoiding differences in airflow velocity, and thus ensuring heat dissipation and ventilation efficiency.

[0029] This utility model also proposes an electronic device, which includes a heat dissipation shell. The specific structure of the heat dissipation shell is as described in the above embodiments. Since this electronic device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. The electronic device has a heat source inside. The heat generated by the heat source is discharged to the outside of the electronic device through the second vent 300, the heat dissipation hole 400, and the first vent 200 of the heat dissipation shell with the heat dissipation airflow, thus completing the heat dissipation and cooling. The electronic device mainly relates to consumer electronic devices, such as routers, game consoles, AV amplifiers, server chassis, smart speakers, or power adapters.

[0030] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the inventive concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A heat dissipation casing, characterized in that, include: The outer shell body has a first vent and a second vent sequentially arranged along the thickness direction of the outer shell body. The first vent and the second vent are arranged in multiples along the length direction of the outer shell body. A partition is formed between two adjacent first vents and a baffle is formed between two adjacent second vents. The baffle is arranged corresponding to the first vent and the partition is arranged corresponding to the second vent. A heat dissipation hole is formed between the ends of adjacent partitions and baffles facing each other.

2. The heat dissipation housing as described in claim 1, characterized in that, The baffle is located on the side of the outer shell body facing the heat source.

3. The heat dissipation housing as described in claim 1, characterized in that, Both the first vent and the second vent are elongated holes.

4. The heat dissipation housing as described in claim 3, characterized in that, The width of the heat dissipation hole is L1, and L1≤1mm.

5. The heat dissipation housing as described in claim 1, characterized in that, The first vent has a first opening and a second opening, which are arranged opposite to each other. The first opening is close to the heat dissipation hole, and the width of the first opening is smaller than the width of the second opening.

6. The heat dissipation housing as described in claim 5, characterized in that, The width of the first opening is L2, and L2 = 2mm.

7. The heat dissipation housing as described in claim 1 or 5, characterized in that, The inner wall of the first vent is inclined.

8. The heat dissipation housing as described in claim 1, characterized in that, The first vent is shaped like a trumpet.

9. The heat dissipation housing as described in claim 1, characterized in that, The centerline of the baffle coincides with the centerline of the first vent.

10. An electronic device, characterized in that, Includes the heat dissipation housing as described in any one of claims 1-9.

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