CN209787712U - Mobile terminal heat radiation structure and mobile terminal - Google Patents
Mobile terminal heat radiation structure and mobile terminal Download PDFInfo
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- CN209787712U CN209787712U CN201920159984.6U CN201920159984U CN209787712U CN 209787712 U CN209787712 U CN 209787712U CN 201920159984 U CN201920159984 U CN 201920159984U CN 209787712 U CN209787712 U CN 209787712U
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Abstract
the utility model relates to a mobile terminal heat radiation structure and mobile terminal. The mobile terminal heat dissipation structure comprises a mobile terminal shell, wherein the wall surface of the mobile terminal shell is of a hollow structure and forms a closed circulation channel; the mobile terminal shell is arranged in contact with a heating body of the mobile terminal; the closed circulation channel is injected with a heated and vaporized working medium, and the working medium is configured to: the liquid flows along the closed circulation channel after being heated and vaporized, and is condensed into liquid after releasing heat and flows back in the liquid form through capillary action. The utility model discloses a technical problem that will solve can make mobile terminal have good radiating effect.
Description
Technical Field
The utility model relates to an electronic equipment technical field, more specifically, the utility model relates to a mobile terminal heat radiation structure and mobile terminal.
Background
In recent years, with the rapid development of electronic technology, various forms of mobile terminals, such as: smart phones, notebooks, tablet computers, and the like are widely used. Especially smart phones, have become an indispensable communication tool in people's daily life nowadays. However, when people apply smart phones, it is often found that: when the power consumption is large, such as playing games, calling for a long time or watching videos, the mobile phone mainboard can generate heat to different degrees, even the situation of scalding is generated.
In order to solve the problem that a heating component generates heat and is hot when power consumption of a mobile terminal, such as a smart phone, is high, a graphite heat sink is attached to an inner wall of a housing of the mobile terminal, and heat generated by the heating component such as a PMU (power management unit) and a CPU (central processing unit) during operation is conducted to a middle frame and/or a rear case of the mobile terminal to dissipate heat, so that the temperature of the heating component is reduced. At this time, the middle frame and the rear shell of the mobile terminal are used as the mobile terminal shell and also have the function of a radiating fin, so that the temperature of a heating component is reduced, and the heat radiation of the whole mobile terminal is realized. However, the above method adopted at present has a limited degree of improvement in the heating and scalding conditions of the heat generating components in the mobile terminal. In practical application, the heat dissipation performance of the whole mobile terminal is still not ideal, and the phenomenon that the internal temperature of the mobile terminal is high (some temperature can even reach more than 70 ℃) still occurs. The main reasons for this are: the thermal contact resistance between the graphite radiating fins and the mobile terminal shell is large, so that heat conduction can be hindered, and finally, heat cannot be rapidly and effectively dissipated.
Therefore, it is necessary to develop a new solution for a heat dissipation structure of a mobile terminal to solve the problems in the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a mobile terminal heat radiation structure and mobile terminal's new technical scheme.
According to a first aspect of the present invention, a heat dissipation structure for a mobile terminal is provided, which includes a mobile terminal housing, wherein a wall surface of the mobile terminal housing is a hollow structure and forms a closed circulation channel; the mobile terminal shell is arranged in contact with a heating body of the mobile terminal; the closed circulation channel is injected with a heated and vaporized working medium, and the working medium is configured to: the liquid flows along the closed circulation channel after being heated and vaporized, and is condensed into liquid after releasing heat and flows back in the liquid form through capillary action.
Optionally, the mobile terminal housing is made of a metal material.
Optionally, the closed circulation channel has a condensation end and an evaporation end, and a capillary structure is arranged on the inner wall of the closed circulation channel; and the heating body of the mobile terminal is close to the evaporation end of the closed circulation channel.
Optionally, the mobile terminal housing includes a rear shell and a bezel; wherein, a closed circulation channel is formed in the rear shell and/or the frame.
Optionally, one or more closed circulation ducts are provided within the rear shell.
Optionally, one or more closed circulation channels are arranged in the frame.
Optionally, a position of the mobile terminal housing contacting with the heating body of the mobile terminal is provided with a heat conduction layer, and the heat conduction layer is configured to: for transferring the heat generated by the heating body to the mobile terminal case.
Optionally, the heat conducting layer is made of a heat conducting silicone grease material.
Optionally, the working medium is water.
According to the utility model discloses a second aspect provides a mobile terminal, including any kind of above-mentioned mobile terminal heat radiation structure.
The embodiment of the utility model provides a mobile terminal heat radiation structure improves to current mobile terminal's shell structure, is hollow structure with the wall design of mobile terminal shell, utilizes hollow structure to form closed circulation channel to the working medium that can vaporize after being heated is injected into in this closed circulation channel, and this structure can effectual reduction mobile terminal's the heat-generating body the temperature, avoids the heat-generating body to appear generating heat, send out the phenomenon of scalding in work. And furthermore, the heat dissipation performance of the whole mobile terminal can be obviously improved. In addition, the closed circulation channel is formed in the wall surface of the mobile terminal shell, so that the space in the mobile terminal is not occupied, and the mobile terminal is light and thin.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a cross-sectional view of a heat dissipation structure of a mobile terminal according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a closed circulation channel according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of another closed circulation channel provided in an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of another closed circulation channel provided in an embodiment of the present invention.
Description of reference numerals:
1-outer shell, 101-back shell, 102-frame, 2-first closed circulation channel, 3-second closed circulation channel.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be considered a part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
The utility model provides a mobile terminal heat radiation structure, this mobile terminal heat radiation structure can be applied to the mobile terminal of multiple different grade types such as smart mobile phone, notebook, panel computer, can show the heat dispersion that improves mobile terminal, reduces the temperature of heat-generating body in the mobile terminal better, does benefit to the stability that improves mobile terminal operation.
The utility model provides a pair of mobile terminal heat radiation structure, it is shown with reference to fig. 1, and it includes mobile terminal shell 1, and this mobile terminal shell 1's wall is hollow structure and forms closed circulation channel 2, 3. The mobile terminal case 1 is disposed in contact with a heat generating body of the mobile terminal (not shown in fig. 1). The closed circulation channels 2, 3 may be pre-filled with a working medium that is vaporized by heating. Wherein the working medium is configured to: the liquid can flow along the closed circulation channel after being heated and vaporized, and the liquid is condensed into a liquid form after releasing heat in the flow and flows back in the liquid form through the capillary action.
The utility model provides a mobile terminal heat radiation structure improves to current mobile terminal's shell structure. Specifically, the mobile terminal shell is designed to be a hollow structure, a closed circulation channel is formed by the hollow structure, and a working medium vaporized after being heated is injected into the closed circulation channel. When a heating body of the mobile terminal generates heat, the working medium flows along the closed circulation channel after being heated and vaporized, is condensed into a liquid state after releasing heat, then flows back through capillary action, and is evaporated, vaporized, condensed and reflowed again to realize the heat dissipation effect. The temperature of the heating body in the mobile terminal can be reduced through the design, and the phenomena of heating and scalding of the heating body are avoided. And furthermore, the heat dissipation performance of the whole mobile terminal can be obviously improved. In addition, because the closed circulation channel is formed in the wall surface of the mobile terminal shell, the closed circulation channel does not occupy the space inside the mobile terminal, and is very favorable for realizing the lightness and thinness of the mobile terminal.
The utility model discloses a mobile terminal shell adopts the well-known metal material in this field to make, for example: aluminum alloy, the utility model discloses do not do the restriction to this. The metal material has better heat-conducting property, and is firm and durable.
In the utility model, the working medium is liquid which is easy to vaporize after being heated. Such liquids are generally low in boiling point and tend to evaporate upon heating to form a gaseous form.
In one embodiment of the present invention, the working medium may be liquid water. The utility model discloses in utilize the characteristics that liquid water specific heat capacity is big, under the equal thermal condition of absorption, the intensification of water is lower to can play the effect that reduces heat-generating body temperature in the mobile terminal. Moreover, the cost of the water is low, no pollution is caused, the water is easy to obtain, and the excessive cost cannot be brought to the production. Of course, other materials known in the art may be used for the working medium, such as: alcohol, etc. as long as it has a large specific heat capacity and is easily vaporized after being heated, the utility model does not limit the same.
The utility model discloses a closed circulation channel sees from the structure: which has a condensation end and an evaporation end and is provided with a capillary structure (not shown in fig. 1) on the inner wall of the closed circulation channel. When the heating element generates heat, the working medium in the closed circulation channel can be heated and vaporized at the evaporation end.
in practice, the inside of the closed circulation passage is previously pumped into a negative pressure state, and an appropriate amount of working medium is previously injected into the closed circulation passage. Because the closed circulation channel is provided with the condensation end and the evaporation end, when one end of the closed circulation channel is heated (a heating body in the mobile terminal generates heat), a working medium in the closed circulation channel is rapidly heated, evaporated and vaporized to form steam, the steam flows to the other end under a small pressure difference and releases heat in the process, the steam is condensed into liquid again, then the liquid flows back to the evaporation end by virtue of capillary action, and then is evaporated, condensed and refluxed again, so that the circulation is continuous, and the heat can be transmitted to the other end from one end of the closed circulation channel. Since the circulation process is rapid and continuous, the heat generated by the heating element in the mobile terminal can be continuously conducted. The design of the utility model can obviously improve the heat dispersion of the whole mobile terminal, better reduce the temperature of the heating element (such as CPU and PMU), and avoid the heating and scalding phenomena of the heating element.
Further, the capillary structure on the inner wall of the closed circulation channel may be formed of a capillary porous material. The capillary structure plays a capillary role and can drive the liquid working medium to flow back so as to realize continuous circulation of the working medium in the closed circulation channel.
The utility model discloses a heat radiation structure is provided with the heat-conducting layer (not shown in figure 1) in the position of mobile terminal shell 1 with mobile terminal's heat-generating body contact. Wherein the thermally conductive layer is configured to: for transferring heat generated during operation of a heat generating body in the mobile terminal to the mobile terminal case 1. The special structure of the mobile terminal shell 1 is used for heat dissipation, so that the phenomenon that the temperature of a heating body is too high can be prevented, and a good heat dissipation effect is achieved.
Specifically, the heat conductive layer may be formed in a coating manner using a heat conductive material well known in the art at a position where the mobile terminal case is in contact with the heat generating body of the mobile terminal.
In one embodiment of the present invention, the heat conducting layer may be made of a heat conducting silicone grease material. The heat-conducting silicone grease is a high-heat-conducting and insulating silicone material, and has excellent electrical insulating property and excellent heat conductivity. In addition, the heat-conducting silicone grease has the characteristics of high and low temperature resistance, water resistance and weather aging resistance. The heat-conducting silicone grease material is coated on the position where the mobile terminal shell is contacted with the heating body of the mobile terminal, so that heat generated by the heating body can be quickly conducted to the mobile terminal shell. The utility model discloses well adoption heat conduction silicone grease can play good heat transfer medium effect as the heat conduction material, can also make mobile terminal keep long-term stable electric property.
Of course, the heat conducting layer may be formed at the position where the mobile terminal housing contacts with the heat generating body of the mobile terminal in other forms known in the art, such as spraying, which is not limited by the present invention.
The utility model provides a mobile terminal heat radiation structure, shape based on the mobile terminal shell are different, and its closed circulation channel's that forms structure, shape are also different, the utility model discloses do not do the restriction to this.
The utility model discloses a mobile terminal shell 1, it is shown with reference to fig. 1, its structure is: including a rear housing 101 and a bezel 102. A closed circulation channel may be provided at a suitable position of the mobile terminal case 1 according to the position of the heating element in the mobile terminal. Specifically, the method comprises the following steps: when the heat generating body of the mobile terminal is in direct contact with only the rear case 101, a closed circulation path may be formed only in the rear case 101. When the heat generating body of the mobile terminal is in direct contact with only the frame 102, a closed circulation channel may be formed only in the frame 102. When the heating element of the mobile terminal directly contacts both the rear case 101 and the frame 102, referring to fig. 1, closed circulation channels may be respectively disposed in the rear case 101 and the frame 102, for example: a first closed circulation path 2 is formed in the rear case 101, and a first closed circulation path 3 is formed in the frame 102. Can be according to actual conditions, select arbitrary mode in the above-mentioned three kinds in a flexible way, the utility model discloses do not do the restriction to this.
Based on the structure and shape difference of the rear shell 101 and the frame 102, the structure and shape of the closed circulation channel formed inside the rear shell are also different, which is not limited by the present invention.
According to the difference of cooling demand, the quantity that the circulation closed pipeline that sets up in backshell and the frame is also different, the utility model discloses do not do the restriction to this.
When the first closed circulation path 2 is formed in the rear case 101 and the second closed circulation path 3 is formed in the frame 102, the first closed circulation path 2 and the second closed circulation path 3 may be connected to each other or may be independent of each other. The structure that specifically can be according to backshell and frame sets up in a flexible way, the utility model discloses do not do the restriction to this.
As for the rear case 101, in an embodiment of the present invention, referring to fig. 2, the first closed circulation path 2 may include at least two U-shaped paths disposed side by side and communicating with each other in the rear case 101. The closed circulation channel has a simple structure, is easy to realize, and is very suitable for the rear shell with a flat structure. Of course, the first closed circulation path 2 in the rear case 101 may be flexibly arranged according to the structure, shape, etc. of the rear case, for example: the continuous S-shaped channel, V-shaped channel, etc. are not limited by the present invention as long as the working medium which is easily vaporized when heated can circulate therein.
As for the frame 102, the second closed circulation path 3 is provided along the edge of the frame 102, and at least one is provided, within the frame 102. In a specific embodiment of the present invention, referring to fig. 3, in the frame 102, the second closed circulation channel 3 is set to be one, and when the second closed circulation channel 3 is set, the size of the second closed circulation channel can be designed to be larger, so as to facilitate better and faster heat dissipation. In another embodiment of the present invention, referring to fig. 4, in the frame 102, three second closed circulation channels 3 may be provided, and the three second closed circulation channels 3 are uniformly distributed, and at this time, the size of each second closed circulation channel 3 may be designed to be smaller. The effect of rapid heat dissipation can also be achieved through the design of a plurality of channels.
The utility model discloses in do not do the restriction to the structure, quantity, the setting position etc. that seal circulation channel 2, 3, can be according to nimble adjustment such as the position of mobile terminal shell and mobile terminal's heat-generating body.
The utility model provides a mobile terminal heat radiation structure can be applied to the mobile terminal of multiple different grade type such as smart mobile phone, notebook, panel computer, the utility model discloses do not do the restriction to this.
On the other hand, the utility model also provides a mobile terminal, including any kind of mobile terminal heat radiation structure of the aforesaid.
The utility model provides a mobile terminal heat radiation structure has simple structure, low in manufacturing cost's characteristics, is applied to mobile terminal with it, can show the heat dispersion that promotes mobile terminal.
Although some specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for purposes of illustration and is not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (10)
1. A mobile terminal heat dissipation structure is characterized by comprising a mobile terminal shell, wherein the wall surface of the mobile terminal shell is of a hollow structure and forms a closed circulation channel;
The mobile terminal shell is arranged in contact with a heating body of the mobile terminal;
The closed circulation channel is injected with a heated and vaporized working medium, and the working medium is configured to: the liquid flows along the closed circulation channel after being heated and vaporized, and is condensed into liquid after releasing heat and flows back in the liquid form through capillary action.
2. the heat dissipation structure of claim 1, wherein the housing of the mobile terminal is made of a metal material.
3. The heat dissipation structure of claim 1, wherein the closed circulation channel has a condensation end and an evaporation end, and a capillary structure is disposed on an inner wall of the closed circulation channel;
And the heating body of the mobile terminal is close to the evaporation end of the closed circulation channel.
4. the mobile terminal heat dissipation structure of claim 1, wherein the mobile terminal housing comprises a rear housing and a bezel;
Wherein, a closed circulation channel is formed in the rear shell and/or the frame.
5. The heat dissipation structure of claim 4, wherein one or more closed circulation pipes are provided within the rear case.
6. The heat dissipation structure of claim 4, wherein one or more closed circulation channels are provided in the frame.
7. The heat dissipation structure of claim 1, wherein a position of the mobile terminal housing in contact with the heat generating body of the mobile terminal is provided with a heat conducting layer configured to: for transferring the heat generated by the heating body to the mobile terminal case.
8. The heat dissipation structure of claim 7, wherein the heat conductive layer is made of a thermally conductive silicone grease material.
9. The heat dissipation structure of claim 1, wherein the working medium is water.
10. A mobile terminal characterized by comprising a mobile terminal heat dissipation structure according to any of claims 1-9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920159984.6U CN209787712U (en) | 2019-01-29 | 2019-01-29 | Mobile terminal heat radiation structure and mobile terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920159984.6U CN209787712U (en) | 2019-01-29 | 2019-01-29 | Mobile terminal heat radiation structure and mobile terminal |
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| CN209787712U true CN209787712U (en) | 2019-12-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112351643A (en) * | 2020-10-21 | 2021-02-09 | 江西艾普若科技有限责任公司 | Mobile terminal with good heat dissipation effect |
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2019
- 2019-01-29 CN CN201920159984.6U patent/CN209787712U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112351643A (en) * | 2020-10-21 | 2021-02-09 | 江西艾普若科技有限责任公司 | Mobile terminal with good heat dissipation effect |
| CN112351643B (en) * | 2020-10-21 | 2023-03-31 | 江西艾普若科技有限责任公司 | Mobile terminal including heat dissipation structure |
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