Heat dissipation device of portable outdoor terminal and portable outdoor terminal

Abstract

The embodiment of the invention provides a heat dissipation device of a portable outdoor terminal. The heat dissipation device comprises a shell, a base and a heat dissipation mechanism, wherein a first accommodating part, a second accommodating part and a third accommodating part are formed in the shell; the base is located at the bottom of the shell. The heat dissipation mechanism is located in the second containing part and comprises a heat dissipation frame body, a heat dissipation channel is formed in the heat dissipation frame body, and the two ends of the heat dissipation channel comprise an air inlet and an air outlet higher than the air inlet correspondingly; when the base is arranged on the horizontal plane, at least part of the air inlets are communicated with air in the sunny area, and the air outlets are communicated with air in the shady area. The embodiment of the invention further provides a portable outdoor terminal. According to the portable outdoor terminal equipment, the heat dissipation device with the heat dissipation channel is arranged in the portable outdoor terminal equipment, when the portable outdoor terminal equipment is used outdoors, the heat dissipation channel can form natural air circulation according to the principle that hot air rises, the portability of the portable outdoor terminal is improved, and meanwhile the heat dissipation capacity is also improved.

Description

Technical Field

[0001] The present application relates to the technical field of heat dissipation of portable outdoor terminals, and particularly to a heat dissipation device for a portable outdoor terminal and a portable outdoor terminal. Background Art

[0002] With the continuous development of terminal devices, including communication terminals, towards miniaturization and high integration, a large number of high-heat-generating chips are integrated inside the terminal devices. At the same time, due to factors such as the volume and weight of the terminal devices, the heat generation problem of the terminal devices has increasingly become the focus of attention. If traditional fan heat dissipation or liquid cooling heat dissipation methods are used to provide auxiliary heat dissipation for the terminal devices, but the traditional fan heat dissipation or liquid cooling heat dissipation methods are obviously not applicable to those terminal devices that need to be used outdoors. In the outdoor scenario, the traditional fan heat dissipation efficiency is not high, and it is difficult to achieve effective heat dissipation of outdoor devices. And the liquid cooling heat dissipation method is not convenient to use in the outdoor scenario because it requires additional equipment for auxiliary cooperation. Summary of the Invention

[0003] To solve the above problems, the present application provides a heat dissipation device for a portable outdoor terminal and a portable outdoor terminal that adopt a passive heat dissipation method and have excellent heat dissipation effects.

[0004] To achieve the above object, the technical solution adopted in the present application is as follows: One aspect of an embodiment of the present application provides a heat dissipation device for a portable outdoor terminal. The heat dissipation device includes a housing, a base, and a heat dissipation mechanism: a first accommodation portion, a second accommodation portion, and a third accommodation portion are formed in the housing, and the first accommodation portion and the third accommodation portion are respectively located on both sides of the second accommodation portion; the base is located at the bottom of the housing; the heat dissipation mechanism is located in the second accommodation portion. The heat dissipation mechanism includes a heat dissipation frame body. At least two heat dissipation channels that are substantially parallel to each other and penetrate the heat dissipation frame body are formed in the heat dissipation frame body. Both ends of the heat dissipation channels include an air inlet and an air outlet that are respectively communicated to the outside of the heat dissipation frame body, and the air outlet is arranged higher than the air inlet; When the base is placed on a horizontal plane, in at least part of the heat dissipation channels, the air inlet is communicated with the air in the sunny area and the air outlet is communicated with the air in the shady area, and the range of the angle between the extending direction of the heat dissipation channel and the horizontal plane is from 1° to 15°.

[0005] Further, the bottom of the base includes a base surface for placement, and the range of the angle between the base surface and the extending direction of the heat dissipation channel is from 1° to 15°.

[0006] Further, the base includes a base surface and a support portion rotatably connected to the base surface. The support portion includes a storage state close to the base surface and an open state away from the base surface. When the support portion is in the open state and the base is placed on a horizontal plane, the range of the angle between the extending direction of the heat dissipation channel and the horizontal plane is from 1° to 15°.

[0007] Furthermore, the thickness range of the heat dissipation housing is from 3 mm to 7 mm.

[0008] Furthermore, the cross-section of the heat dissipation channel is an inscribed figure of a circle, the diameter range of the circle is from 1 mm to 6 mm, and the center distance range between adjacent heat dissipation channels is from 3 mm to 7 mm.

[0009] Furthermore, the cross-section of the heat dissipation channel is a rectangle or a rounded rectangle, the length range of the rectangle or the rounded rectangle is from 2 mm to 4 mm, and the width range of the rectangle or the rounded rectangle is from 1 mm to 3 mm.

[0010] Furthermore, the heat dissipation mechanism further includes a heat conduction layer, the heat conduction layer is attached to the surface of the heat dissipation housing, the heat conduction layer includes at least one of a thermal interface material or a heat conductive metal material, and the thermal conductivity of the heat conduction layer is greater than or equal to 5 W / (m·K); The heat dissipation housing is made of a metal material with a thermal conductivity greater than or equal to 200 W / (m·K).

[0011] Another aspect of the embodiments of the present application provides a portable outdoor terminal, and the portable outdoor terminal includes the aforementioned heat dissipation device and a heat source; The heat source includes a first heat source located in the first accommodation part and a second heat source located in the third accommodation part, and both the first heat source and the second heat source are attached to the heat dissipation mechanism.

[0012] Furthermore, define the plane where the heat dissipation housing is located as the frame plane, the orthographic projection of the heat dissipation housing on the frame plane is the housing projection, the orthographic projection of the heat source on the frame plane is the heat source projection, and the area ratio range of the housing projection to the heat source projection is from 0.4 to 1.

[0013] Furthermore, the portable outdoor terminal includes a satellite communication terminal, and the heat source includes at least one of an antenna module, a radio frequency module or a processing chip.

[0014] In the present application, by providing a heat dissipation device with heat dissipation channels in the portable outdoor terminal, during outdoor use, the heat dissipation channels can utilize the principle of hot air rising to form a natural air circulation, and achieve convective circulation heat dissipation without using auxiliary heat dissipation devices such as fans, which improves the portability of the portable outdoor terminal and also improves the heat dissipation capacity of the portable outdoor terminal. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of the heat dissipation device provided by the embodiments of the present application; Figure 2 It is a schematic structural diagram of the housing in the heat dissipation device provided by the embodiments of the present application; Figure 3Schematic diagram of the heat dissipation mechanism in the heat dissipation device provided by the embodiment of the present application; Figure 4 Schematic diagram for the definition of the sunny area and the back area in the description of the embodiment of the present application; Figure 5 Schematic diagram of the structure of the heat dissipation channel extension direction in the embodiment of the present application; Figure 6 Schematic diagram of the structure of the base with a support in the heat dissipation device provided by the embodiment of the present application; Figure 7 Cross-sectional view schematic diagram of the heat dissipation frame body provided by the embodiment of the present application; Figures 8 to 10 Schematic diagram of the structures of three different cross-sectional shapes of the heat dissipation channels provided by the embodiment of the present application; Figure 11 Schematic diagram of the structure of the rectangular-shaped heat dissipation channel provided by the embodiment of the present application; Figure 12 Schematic diagram of the structure of the heat dissipation mechanism including a heat conduction layer provided by the embodiment of the present application; Figure 13 Schematic diagram of the structure of the portable outdoor terminal provided by the embodiment of the present application.

[0016] In the figure: heat dissipation device 100, housing 11, first accommodation part 111, second accommodation part 112, third accommodation part 113, base 12, base surface 121, support part 122, heat dissipation mechanism 13, heat dissipation frame body 131, heat dissipation channel 1311, air inlet 1312, air outlet 1313, heat conduction layer 132, portable outdoor terminal 200, heat source 21, first heat source 211, second heat source 212. Detailed implementation manners

[0017] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the specific embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application.

[0018] One aspect of the embodiment of the present application provides a kind of as Figure 1The heat dissipation device 100 shown is mainly used to dissipate heat for the portable outdoor terminal 200. The heat dissipation device 100 includes a housing 11, a base 12, and a heat dissipation mechanism 13. The usage scenario of the portable outdoor terminal 200 is more in the outdoor environment. Different from the indoor environment, in the outdoor environment, the terminal device is more vulnerable to sunlight, rain, etc. Especially when the portable outdoor terminal 200 is running outdoors, it generates heat itself, and in addition, the sunlight will also increase the heat received by the portable outdoor terminal 200 from the outside. Therefore, for the portable outdoor terminal 200, it has higher heat dissipation requirements and heat dissipation pressure. The base 12 is located at the bottom of the housing 11. The base 12 and the housing 11 can be manufactured separately and then connected together, or the base 12 and the housing 11 can be integrally formed. The heat dissipation mechanism 13 is basically located in the housing 11. As Figure 2 shown, a first accommodation part 111, a second accommodation part 112, and a third accommodation part 113 are formed in the housing 11. The first accommodation part 111 and the third accommodation part 113 are respectively located on both sides of the second accommodation part 112. The first accommodation part 111, the second accommodation part 112, and the third accommodation part 113 are basically arranged in a top-down positional relationship. Among them, the first accommodation part 111 and the third accommodation part 113 are mainly used to accommodate and arrange the heat-generating components in the portable outdoor terminal 200 or the heat source 21 formed by a combination of several heat-generating components. The heat dissipation mechanism 13 is basically located in the second accommodation part 112. The first accommodation part 111, the second accommodation part 112, and the third accommodation part 113 provide a placement space for the heat source 21 and the heat dissipation mechanism 13 in the portable outdoor terminal 200, and at the same time, it can also enable the heat source 21 to be closely arranged on at least one side of the heat dissipation mechanism 13, reduce the distance between the heat source 21 and the heat dissipation mechanism 13, shorten the distance of heat transfer, and can improve the heat dissipation effect to a certain extent.

[0019] As Figure 3 shown, the heat dissipation mechanism 13 includes a heat dissipation frame body 131. The heat dissipation frame body 131 is located in the second accommodation part 112. The heat dissipation frame body 131 constitutes the main part of the heat dissipation mechanism 13, and the heat dissipation capacity of the heat dissipation mechanism 13 is mainly provided by the heat dissipation frame body 131. At least two heat dissipation channels 1311 are formed in the heat dissipation frame body 131, and these heat dissipation channels 1311 are basically parallel to each other. These heat dissipation channels 1311 are open channels. The heat dissipation channels 1311 run through the entire heat dissipation frame body 131, and both ends of the heat dissipation channels 1311 communicate with the outside of the heat dissipation frame body 131, that is, both ends of the heat dissipation channels 1311 communicate with the outside air. Specifically, both ends of the heat dissipation channel 1311 are an air inlet 1312 and an air outlet 1313 that communicate with the outside air respectively, and the position of the air outlet 1313 is set higher than the position of the air inlet 1312.

[0020] After the heat of the portable outdoor terminal 200 is transferred to the heat dissipation mechanism 13, the air in the heat dissipation channel 1311 is heated. Due to the principle of hot air rising, the heated air in the heat dissipation channel 1311 flows towards the air outlet 1313 at the higher position end and flows into the air through the air outlet 1313 at the higher position. At the same time, after the hot air in the heat dissipation channel 1311 rises, a low-pressure area is formed in the heat dissipation channel 1311, and the air inlet 1312 at the lower position end of the heat dissipation channel 1311 sucks in air from the outside, thereby forming an air flow in the heat dissipation channel 1311. Generally speaking, due to the fact that hot air rises and cold air sinks, the heat dissipation channel 1311 sucks in air with a lower temperature from the air inlet 1312 at the lower end, and these colder air is discharged from the air outlet 1313 at the higher end of the heat dissipation channel 1311 after being heated by the heat transferred from the portable outdoor terminal 200. A stable natural convection cycle is formed throughout the process and can take away the heat generated by the portable outdoor terminal 200 itself. Through the above-mentioned convection cycle mechanism in the heat dissipation channel 1311, the air completes the entire heat dissipation cycle process in the heat dissipation channel 1311, and takes out the heat in the heat dissipation channel 1311, or rather, in the heat dissipation frame 131, to the outside of the heat dissipation channel 1311 through air flow, or rather, takes out the heat to the outside of the portable outdoor terminal 200 to achieve the heat dissipation effect.

[0021] When the heat dissipation device 100 in the embodiment of the present application is placed in the manner of the base 12 on a horizontal plane, in at least part of the heat dissipation channel 1311, the air inlet 1312 is communicated with the air in the sunny area and the air outlet 1313 is communicated with the air in the shady area.

[0022] As Figure 4 shown, a light ray that is basically perpendicular to the heat dissipation device 100 and irradiates the heat dissipation device 100 ( Figure 4 shown by the arrowed line in the figure) is defined. This light ray irradiates basically from the direction of the first accommodating part 111 to the third accommodating part 113. The area in the heat dissipation device 100 and the area near the heat dissipation device 100 that cannot be irradiated by this light ray is defined as the back shadow area ( Figure 4 shown by the shaded area in the figure), and the area that can be irradiated by this light ray is defined as the sunny area ( Figure 4(the area other than the shaded area). Generally speaking, after being irradiated by sunlight in an outdoor environment, the temperature of the sunny area is slightly higher than that of the back area. Specifically, in an outdoor lighting environment, the temperature of the sunny area is at least about 1 °C higher than that of the back area. In the embodiment of the present application, the air inlet 1312 of at least part of the heat dissipation channel 1311 is in communication with the air in the sunny area, and the air outlet 1313 is in communication with the air in the back area, and the air inlet 1312 is arranged at a position lower than the air outlet 1313. When the portable outdoor terminal 200 is not powered on and running, due to the sunlight irradiation, the air in the sunny area near the air inlet 1312 is heated by the sunlight. Due to the principle of hot air rising, driven by the temperature difference, the heated air near the air inlet 1312 rises along the heat dissipation channel 1311, forming a slow but continuous and stable air micro-flow process in the heat dissipation channel 1311. Although the air micro-flow process itself has limited heat dissipation effect, it can provide an initial power for the subsequent heat dissipation process, enabling the portable outdoor terminal 200 to achieve a faster heat dissipation cycle process when working. Specifically, when the portable outdoor terminal 200 is not started, due to the temperature difference between the sunny area and the shaded area, the above-mentioned air micro-flow process can be stably formed in the heat dissipation channel 1311. When the portable outdoor terminal 200 is turned on to generate heat and the heat is transferred to the heat dissipation mechanism 13 or the heat dissipation channel 1311, with the air micro-flow process continuously providing the initial circulation power, a heat dissipation cycle can be quickly formed in the heat dissipation channel 1311, rapidly improving the heat dissipation capacity of the heat dissipation mechanism 13, avoiding the situation of heat accumulation due to untimely heat dissipation in the initial stage of the operation of the heat dissipation mechanism 13, improving the heat dissipation capacity of the portable outdoor terminal 200, and enhancing the operation stability of the portable outdoor terminal 200.

[0023] Further, the extending direction of the air inlet 1312 or the air outlet 1313 may be the same as the extending direction of the heat dissipation channel 1311 (as shown in Figure 1 ), or may form an angle with the extending direction of the heat dissipation channel 1311 (as shown in Figure 4(as shown in). For example, when the extending direction of the heat dissipation channel 1311 forms an angle with the horizontal plane, the extending direction of the air inlet 1312 or the air outlet 1313 can be parallel to the horizontal plane, so as to improve the efficiency of the aforementioned air micro-flow process in the heat dissipation mechanism 13 and the heat dissipation efficiency in the subsequent heat dissipation process. In particular, the extending direction or the setting position of the air outlet 1313 can be appropriately adjusted so that the air outlet 1313 avoids the sunny area and is as completely as possible in the shadow area or as far away from the sunny area as possible. Similarly, some shielding structures can also be arranged near the air outlet 1313 or other structures in the heat dissipation device 100 can be used to form a shielding structure, so that the area near the air outlet 1313 is configured as a shaded area. In addition, when the extending direction of the air outlet 1313 is not collinear with the extending direction of the heat dissipation channel 1311, that is, when there is an angle between the extending direction of the air outlet 1313 and the extending direction of the heat dissipation channel 1311, the gas flow velocity at the air outlet can also be increased to a certain extent, further improving the heat dissipation effect.

[0024] As Figure 5 shown, in the heat dissipation device 100 of the embodiment of the present application, when the heat dissipation device 100 is placed on an installation plane, that is, when the base 12 is placed on an installation plane, the extending direction of the heat dissipation channel 1311 forms an angle α with the horizontal plane, or in other words, the heat dissipation channel 1311 in the heat dissipation device 100 is inclined. At this time, the heat generating components disposed in the first accommodating portion 111 and the third accommodating portion 113 and disposed substantially parallel to the heat dissipation device 100 are also substantially inclined, that is, the portable outdoor terminal 200 as a whole is inclined. When the portable outdoor terminal 200 is inclined, it can not only meet the requirements of devices such as antennas in the heat generating components during signal reception and transmission, but also enable the heat dissipation channel 1311 in the heat dissipation device 100 to be inclined to achieve a stable and efficient natural convection cycle in the heat dissipation channel 1311. It should be noted that in the relevant descriptions of the embodiments of the present application, the related content such as "when the heat dissipation device 100 is placed on a horizontal plane" is only to more clearly illustrate the heat dissipation device 100 in the embodiments of the present application, rather than limiting the actual use scenario of the heat dissipation device 100 in the embodiments of the present application. The heat dissipation device 100 in the embodiments of the present application can be configured to be used on the aforementioned horizontal plane, or can be configured to be used on an inclined plane with a certain inclination angle, as long as it is ensured that the air outlet 1313 of the heat dissipation channel 1311 is set higher than the air inlet 1312 and the extending direction of the heat dissipation channel forms a certain inclination angle with the horizontal plane.

[0025] As Figure 5As shown, when the base 12 is placed on the placement plane, the range of the angle α between the extending direction of the heat dissipation channel 1311 and the horizontal plane is from 1° to 15°. When the angle is within the above range, it can not only meet the purpose of forming the convective circulating air flow mechanism in the heat dissipation channel 1311, but also meet the usage requirements of the portable outdoor terminal 200. It can avoid the problem that it is difficult to form an efficient and reliable convective circulation mechanism due to too small an angle, and at the same time can also avoid the problem of low working efficiency when the portable outdoor terminal 200 is in use due to too large an angle. Further, when the base 12 is placed on the horizontal plane, the range of the angle α between the extending direction of the heat dissipation channel 1311 and the horizontal plane is from 4° to 12°. Further still, when the base 12 is placed on the horizontal plane, the range of the angle α between the extending direction of the heat dissipation channel 1311 and the horizontal plane is from 6° to 10°.

[0026] As an alternative embodiment, as Figure 5 shown, the bottom of the base 12 includes a base surface 121 for placement, and the range of the angle between the base surface 121 and the extending direction of the heat dissipation channel 1311 is from 1° to 15°. A base surface 121 for placement is provided on the base 12, and the base surface 121 contacts the outdoor placement plane and the like to stably place the portable outdoor terminal 200. After the portable outdoor terminal 200 is stably placed on the horizontal plane through the base surface 121, the angle between the base surface 121 and the extending direction of the heat dissipation channel 1311 is the angle between the heat dissipation channel 1311 and the horizontal plane. In addition, by satisfying the placement angle requirement of the portable outdoor terminal 200 through the base surface 121, the structure of the base 12 can be simplified, and at the same time, the stability of the portable outdoor terminal 200 when placed can also be improved.

[0027] As an alternative embodiment, as Figure 6 shown, the base 12 includes a base surface 121 and a support portion 122 rotatably connected to the base surface 121. The support portion 122 includes a storage state close to the base surface 121 and an open state away from the base surface 121. When the support portion 122 is in the open state and the base 12 is placed on the horizontal plane, the range of the angle α between the extending direction of the heat dissipation channel 1311 and the horizontal plane is from 1° to 15°. A support portion 122 that can be opened and stored is provided on the base 12. The portable outdoor terminal 200 is supported by the support portion 122, or the angle between the portable outdoor terminal 200 and the placement plane is controlled by the support portion 122, which can not only achieve the stable placement of the portable outdoor terminal 200 when used outdoors, but also achieve the angle control of the portable outdoor terminal 200 when used outdoors. In addition, the support portion 122 with a storage function can further reduce the size of the portable outdoor terminal 200 in the non-use state and improve the portability of the portable outdoor terminal 200.

[0028] As an alternative implementation, as Figure 7 shown, the thickness H of the heat dissipation housing 131 ranges from 3 mm to 7 mm. Controlling the thickness of the heat dissipation housing 131 within the above range can not only increase the size of the heat dissipation channel 1311, increase the ventilation volume during the natural convection cycle of the heat dissipation channel 1311, and improve the heat dissipation performance, but also reduce the overall thickness of the heat dissipation housing 131, improving the portability of the outdoor terminal. This can avoid problems such as a decrease or insufficiency in heat dissipation efficiency due to an overly thin heat dissipation housing 131, and also avoid problems such as a reduction in the portability of the outdoor terminal due to an overly thick heat dissipation housing 131.

[0029] As an alternative implementation, as Figure 8 shown, the cross-section of the heat dissipation channel 1311 is an inscribed figure of a circle, the diameter Φ of the circle ranges from 1 mm to 6 mm, and the center distance L between adjacent heat dissipation channels 1311 ranges from 3 mm to 7 mm. Controlling the size of the heat dissipation channel 1311 and the distance between adjacent heat dissipation channels 1311 within the above range can, on the premise of ensuring the heat dissipation performance of the heat dissipation housing 131, ensure the size of each structural component in the heat dissipation housing 131, such as the wall thickness of the heat dissipation channel 1311, etc., improve the overall mechanical strength of the heat dissipation housing 131, further improve the overall strength of the heat dissipation mechanism 13 and the heat dissipation device 100, and improve the reliability of the portable outdoor terminal 200 equipped with the heat dissipation device 100 during outdoor use. Specifically, the inscribed figure can be the circle itself, as Figure 8 , Figure 9 and Figure 10 shown, and the inscribed figure can also be an inscribed rectangle, inscribed pentagon, inscribed hexagon, or other shapes of the circle.

[0030] As an alternative implementation, as Figure 11 shown, the cross-section of the heat dissipation channel 1311 is a rectangle or a rounded rectangle, the length a of the rectangle or rounded rectangle ranges from 2 mm to 4 mm, and the width b of the rectangle or rounded rectangle ranges from 1 mm to 3 mm. When the cross-section of the heat dissipation channel 1311 is set as a rectangle or a rounded rectangle, it can not only reduce the processing difficulty and cost, but also increase the cross-sectional area of the heat dissipation channel 1311, increase the gas flow rate flowing through the heat dissipation channel 1311, and improve the heat dissipation efficiency of the heat dissipation mechanism 13. And controlling the cross-section of the heat dissipation channel 1311 within the above size range can, on the premise of ensuring the heat dissipation performance of the heat dissipation housing 131, improve the overall mechanical strength of the heat dissipation housing 131 and further improve the overall strength of the heat dissipation mechanism 13 and the heat dissipation device 100.

[0031] As an alternative implementation, as Figure 12As shown, the heat dissipation mechanism 13 further includes a heat conduction layer 132, and the heat conduction layer 132 is attached to the surface of the heat dissipation housing 131. Providing the heat conduction layer 132 can reduce the difficulty of heat transfer between the heat source 21 and the heat dissipation mechanism 13, and improve the efficiency of heat transfer from the heat source 21 to the heat dissipation mechanism 13. In addition, in the terminal device, the surface of the heat source 21 is not flat. By providing the heat conduction layer 132, the gap between the heat dissipation mechanism 13 and the heat source 21 can be filled, improving the heat transfer efficiency between the heat source 21 and the heat dissipation mechanism 13, and further improving the heat dissipation efficiency in the terminal.

[0032] The heat conduction layer 132 includes at least one of a thermal interface material or a heat-conducting metal material. The material of the heat conduction layer 132 can be selected from any existing or potentially emerging materials that can fill the gap between the heat source 21 and the heat dissipation mechanism 13 and improve the heat transfer efficiency between the heat source 21 and the heat dissipation mechanism 13. Preferably, the material of the heat conduction layer 132 can be a thermal interface material or a metal material with a high thermal conductivity. Both the thermal interface material and the metal material have good heat conduction capabilities, and at the same time, the thermal interface material and the metal material also have good processing properties, and can be processed into the required shapes and sizes according to actual needs, facilitating the filling of the gap between the heat source 21 and the heat dissipation mechanism 13. More preferably, some colloidal or paste-like materials containing a thermal interface material or a metal material and having a high thermal conductivity coefficient can be selected to form the heat conduction layer 132, further filling and reducing the gap between the heat source 21 and the heat dissipation mechanism 13, and improving the heat transfer efficiency between the heat source 21 and the heat dissipation mechanism 13.

[0033] The thermal conductivity coefficient of the heat conduction layer 132 is greater than or equal to 5 W / (m·K), which can meet the requirements of the heat transfer efficiency between the heat source 21 and the heat dissipation mechanism 13, improve the heat transfer efficiency between the heat source 21 and the heat dissipation mechanism 13, and improve the overall heat dissipation capacity and heat dissipation efficiency of the portable outdoor terminal 200. The heat dissipation housing 131 is made of a metal material with a thermal conductivity coefficient greater than or equal to 200 W / (m·K). The heat dissipation housing 131 has a large thermal conductivity coefficient, which can improve the heat dissipation efficiency of the heat dissipation housing 131, improve the heat transfer efficiency from the heat dissipation housing 131 to the air in the heat dissipation channel 1311, and improve the overall heat dissipation capacity and heat dissipation efficiency of the portable outdoor terminal 200.

[0034] Another aspect of the embodiments of the present application provides a portable outdoor terminal 200. The portable outdoor terminal 200 includes the heat dissipation device 100 and the heat source 21 as described above; the heat source 21 includes a first heat source 211 located in the first accommodation portion 111 and a second heat source 212 located in the third accommodation portion 113, and both the first heat source 211 and the second heat source 212 are attached to the heat dissipation mechanism 13.

[0035] Divide the heat source 21 in the portable outdoor terminal 200 into two parts, namely the first heat source 211 and the second heat source 212. At the same time, arrange the first heat source 211 and the second heat source 212 on both sides of the heat dissipation mechanism 13 respectively, which can increase the contact area between the heat source 21 and the heat dissipation mechanism 13, enlarge the heat transfer area between the heat source 21 and the heat dissipation mechanism 13, and increase the heat dissipation efficiency in the portable outdoor terminal 200. Specifically, arrange the first heat source 211 in the first accommodating part 111 and the second heat source 212 in the third accommodating part 113, so that the first heat source 211 and the second heat source 212 are distributed and attached to both sides of the heat dissipation mechanism 13. Further, take the components in the heat source 21 that need to receive and transmit signals as part of the first heat source 211 and arrange them in the first accommodating part 111 to improve the stability and efficiency of signal reception and transmission.

[0036] As an alternative implementation, define the plane where the heat dissipation frame 131 is located as the frame plane. The orthographic projection of the heat dissipation frame 131 on the frame plane is the frame projection, and the orthographic projection of the heat source 21 on the frame plane is the heat source 21 projection. The range of the area ratio of the frame projection to the heat source 21 projection is from 0.4 to 1. When the area ratio of the frame projection to the heat source 21 projection is within the above range, it can increase the area of the heat dissipation frame 131 itself, and also increase the contact area between the heat dissipation frame 131 and the heat source 21, thereby improving the heat transfer efficiency from the heat source 21 to the heat dissipation frame 131 and the heat dissipation efficiency of the portable outdoor terminal 200.

[0037] As an alternative implementation, the portable outdoor terminal 200 includes a satellite communication terminal, and the heat source 21 includes at least one of an antenna module, a radio frequency module, or a processing chip. The portable outdoor terminal 200 in this application can be a satellite communication terminal. With the development of miniaturization and integration of satellite communication terminals, not only are they becoming more and more compact in structure, but also components such as high-power radio frequency chips, high-speed processing chips, and antenna modules need to be integrated inside. The satellite communication terminal generates a large amount of heat during use. Using the heat dissipation device 100 in this application can improve the heat dissipation ability of the portable outdoor terminal 200 including the satellite communication terminal and improve the operation stability of the portable outdoor terminal 200. Specifically, components that need to receive and transmit signals, such as the antenna module and the radio frequency module, can be arranged in the first accommodating part 111 above the heat dissipation mechanism 13 to avoid signal shielding by other components, that is, take the antenna module and the radio frequency module as part of the first heat source 211 and arrange them in the first accommodating part 111. Components that do not need to receive and transmit signals, such as the processing chip, can be arranged in the third accommodating part 113 below the heat dissipation mechanism 13.

[0038] Finally, it should be noted that the above are only some preferred embodiments of the present application and are not used to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A heat dissipation device for a portable outdoor terminal, characterized in that, Comprising: A housing, in which a first accommodation part, a second accommodation part and a third accommodation part are formed, and the first accommodation part and the third accommodation part are respectively located on both sides of the second accommodation part; A base, which is located at the bottom of the housing; A heat dissipation mechanism, which is located in the second accommodation part. The heat dissipation mechanism includes a heat dissipation frame body, in which at least two heat dissipation channels are formed and are arranged substantially parallel to each other and penetrate through the heat dissipation frame body. Both ends of the heat dissipation channels include an air inlet and an air outlet that are respectively communicated to the outside of the heat dissipation frame body, and the air outlet is arranged higher than the air inlet; When the base is placed on a placement plane, in at least part of the heat dissipation channels, the air inlet is communicated with the air in the sunny area and the air outlet is communicated with the air in the shady area, and the range of the angle between the extending direction of the heat dissipation channels and the horizontal plane is from 1° to 15°.

2. The heat dissipation device according to claim 1, wherein: The bottom of the base includes a base surface for placement, and the range of the angle between the base surface and the extending direction of the heat dissipation channels is from 1° to 15°.

3. The heat dissipation device according to claim 1, wherein: The base includes a base surface and a support part rotatably connected to the base surface. The support part includes a storage state close to the base surface and an open state away from the base surface. When the support part is in the open state and the base is placed on a horizontal plane, the range of the angle between the extending direction of the heat dissipation channels and the horizontal plane is from 1° to 15°.

4. The heat dissipation device according to claim 1, wherein: The thickness range of the heat dissipation frame body is from 3 mm to 7 mm.

5. The heat dissipation device according to claim 1, wherein: The cross section of the heat dissipation channel is an inscribed figure of a circle, the diameter range of the circle is from 1 mm to 6 mm, and the range of the center distance between adjacent heat dissipation channels is from 3 mm to 7 mm.

6. The heat dissipation device according to claim 5, wherein: The cross section of the heat dissipation channel is a rectangle or a rounded rectangle, the range of the length of the rectangle or the rounded rectangle is from 2 mm to 4 mm, and the range of the width of the rectangle or the rounded rectangle is from 1 mm to 3 mm.

7. The heat dissipation device according to claim 1, wherein: The heat dissipation mechanism further includes a heat conduction layer, which is attached to the surface of the heat dissipation frame body. The heat conduction layer includes at least one of a thermal interface material or a heat conductive metal material, and the heat conduction coefficient of the heat conduction layer is greater than or equal to 5 W / (m·K); The heat dissipation frame body is made of a metal material with a heat conduction coefficient greater than or equal to 200 W / (m·K).

8. A portable outdoor terminal, wherein: The portable outdoor terminal includes the heat dissipation device according to any one of claims 1 to 7 and a heat source; The heat source includes a first heat source located in the first accommodation part and a second heat source located in the third accommodation part, and both the first heat source and the second heat source are attached to the heat dissipation mechanism.

9. The portable outdoor terminal according to claim 8, wherein: Define the plane where the heat dissipation housing is located as the frame plane. The orthographic projection of the heat dissipation housing on the frame plane is the housing projection, and the orthographic projection of the heat source on the frame plane is the heat source projection. The range of the area ratio of the housing projection to the heat source projection is from 0.4 to 1.

10. The portable outdoor terminal according to claim 8, wherein: The portable outdoor terminal includes a satellite communication terminal, and the heat source includes at least one of an antenna module, a radio frequency module, or a processing chip.

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