JP6591013B2 - mobile computer - Google Patents

Description

  The present invention relates to an electronic device in the communication field, and more particularly to a holder and a mobile terminal having the holder.

  With the rapid development of mobile terminal configuration, for example, the dominant frequency of the internal chip of the mobile terminal is getting higher and the memory access speed is getting faster, accordingly, the high frequency power amplification and power The management effect is getting higher and the overall heating of the mobile device is increasing accordingly. Therefore, heat dissipation processing (also referred to as heat dissipation design) in mobile terminals is particularly important. Due to the size, waterproof, dustproof, and noise requirements of mobile terminals, the hermetic sealing function of mobile terminals constrains the use of fans to force heat dissipation. When heat can be dissipated only by using the surface of the mobile terminal, the effective heat dissipation path management by combining the usage habit and the heat receiving function is the core of the heat dissipation design of the mobile terminal. Research shows that mobile terminals are designed to be thinner and increase battery capacity, so the design of overlapping batteries and circuit boards is a simultaneous design on the same plane. As a result, a plurality of heat source components in the mobile terminal (such as a CPU that is the maximum heating component in the mobile terminal) are concentrated in a region corresponding to the side frame and the circuit board of the mobile terminal. According to FIG. 1, it can be seen that the colors of the two areas where heat is relatively concentrated are relatively bright and the temperature is relatively high. However, an area where a plurality of heat sources are concentrated is a place where a user frequently touches when using a mobile terminal. Therefore, more effective heat dissipation processing needs to be executed in the mobile terminal.

  In the prior art, heat is generally transferred to the battery area by using a graphite sheet or by using a higher thermal conductivity holder material, so that the positive of the mobile terminal circuit board holder is positive. Reduce the temperature of the projected area. 2 and 3, the heat dissipation design reduces the temperature of the area corresponding to the circuit board of the mobile terminal, but due to the high thermal conductivity of the holder, heat can be transferred more quickly to the side frame of the mobile terminal. I understand. As a result, many of the heat sources are concentrated in the side frame of the mobile terminal (as can be seen in FIG. 2, the color of this area is relatively bright, indicating that the temperature of this area is relatively high).

  Embodiments of the present invention provide a holder that reduces heat in the side frame of a mobile terminal.

  According to one aspect, there is provided a holder disposed on a mobile terminal, the holder comprising a heat conduction region and a heat insulation region, the heat insulation region being near an end of the holder, and the heat insulation region being in the heat conduction region. Adjacent, a heat dissipation element in the mobile terminal is proximate to the heat conducting area.

  With respect to the first aspect, in a first possible mounting manner, the mobile terminal has a side frame, the side frame surrounds the holder, and the heat insulating region separates the heat-dissipating element from the side frame.

  With respect to the first aspect, in a second possible mounting scheme, the heat insulation region is provided with a heat insulation cavity, which is vacuum or filled with air.

  With respect to the first aspect, in a third possible mounting scheme, the heat insulating region is provided with a heat insulating cavity, the heat insulating cavity has a low heat conductive material, and the low heat conductive material is 0 to 0.026 W / m. -Has a thermal conductivity range of K.

  With respect to the second possible mounting scheme of the first aspect or the third possible mounting scheme of the first aspect, in the fourth possible mounting scheme, the thermal insulation cavity comprises at least one strip-shaped hole or at least One oval hole.

  Regarding the second possible mounting scheme of the first aspect or the third possible mounting scheme of the first aspect, in a fifth possible mounting scheme, the thermal insulation cavity has at least one groove, The groove is provided at the end of the heat insulating region.

  With respect to the first aspect, in a sixth possible mounting manner, the area of the insulating cavity occupies at least 50% of the area of the insulating area.

  With respect to the first aspect, in a seventh possible mounting manner, the thermal insulation region is formed from a low thermal conductivity material, and the low thermal conductivity material has a thermal conductivity range of 0-0.026 W / m · K. .

  Regarding the first aspect, in an eighth possible mounting manner, the material of the holder is a heat conducting material.

  With respect to any of the first possible to eighth possible mounting manners, in the ninth possible mounting manner, the holder is a display screen holder.

  According to a second aspect, there is provided a mobile terminal comprising a side frame, a heat dissipation element, and the holder, and the side frame surrounds the holder.

  According to the holder in the embodiments of the present invention or the mobile terminal having the holder, the heat insulating region is provided on the holder, and the heat insulating region is disposed at the end of the holder and is adjacent to the heat conducting region. As a result, in the process of transferring heat in the heat conducting area to the side frame, the heat is blocked by the heat insulating area, thereby reducing the heat in the side frame.

  BRIEF DESCRIPTION OF THE DRAWINGS To describe the technical solutions in the embodiments of the present invention more clearly, the following briefly describes the accompanying drawings required for describing the embodiments. In the following description, the accompanying drawings show only some embodiments of the present invention, and those skilled in the art can further derive other drawings from these accompanying drawings without creative efforts. it is obvious.

It is the schematic of the infrared temperature distribution of the front surface of a mobile terminal in a prior art, and a back surface. It is the schematic of the infrared temperature distribution of the front surface of a mobile terminal in a prior art, and a back surface.

FIG. 6 is a schematic diagram of infrared temperature distribution on the front and back of another mobile terminal in the prior art.

1 is a schematic diagram of a mobile terminal according to Embodiment 1 of the present invention. FIG.

It is the schematic of the holder in FIG.

It is the schematic of another holder in FIG.

It is the schematic of the holder by Embodiment 2 of this invention.

FIG. 8 is a schematic view of another holder provided in FIG. 7.

It is the schematic of the temperature distribution of the mobile terminal of FIG.

  The following clearly describes the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are merely a part rather than all of the embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the multiple embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

  4 and 5, the first embodiment of the present invention provides a mobile terminal 100. The mobile terminal 100 includes a side frame 2, a heat dissipation element 3, and a holder 1. The holder 1 is disposed in the mobile terminal 100, and the holder 1 includes a heat conduction region 11 and a heat insulation region 12, the heat insulation region 12 is near the end of the holder 1, and the heat insulation region 12 is in the heat conduction region 11. Adjacent, the heat-dissipating element 3 in the mobile terminal is close to the heat conducting area 11 and the side frame 2 surrounds the holder 1.

  According to the mobile terminal 100 provided in this embodiment of the present invention, a heat insulating region 12 is provided on the holder 1, the heat insulating region 12 is near the end of the holder 1 and adjacent to the heat conducting region 11. As a result, in the process of transferring the heat in the heat conducting region 11 to the side frame 2, the heat is blocked by the heat insulating region 12, thereby reducing the heat in the side frame 2.

  The heat insulating region 12 may be disposed between the side frame 2 and the heat conducting region 11.

  In this embodiment, the mobile terminal 100 is a smartphone. Of course, in another embodiment, the mobile terminal 100 may also be a tablet computer.

  In this embodiment, the side frame 2 includes a pair of long end portions L and a pair of short end portions D. When a user uses the mobile terminal 100, the user generally grips a pair of longitudinal ends L. The heat-dissipating element 3 is integrated on the circuit board. The mobile terminal may include a shield can, which prevents the electromagnetic field generated by the heat-dissipating element 3 from diffusing out and prevents the electromagnetic field from being affected by an external electromagnetic field. Surrounding the heat dissipation element 3 on the circuit board. Optionally, stainless steel with a thickness of 0.2 mm and a copper-nickel-zinc alloy with a thickness of 0.2 mm may be used as the material for the shield can. There may be a heat transfer medium between the shield can and the heat-dissipating element 3.

  Also, a heat transfer medium may be present on the shield can, the heat transfer medium being close to the heat transfer region 11 and the heat release element 3 being close to the heat transfer region 11, resulting in heat release. The heat generated by the element 3 can be transferred to the holder 1 more quickly. Heat may be transferred to the outside of the mobile terminal 100 by using the holder 1. The thermally conductive medium may be a thermally conductive silica gel.

  It can be appreciated that the mobile terminal may not have a shield can. The holder 1 may act as a shielding can, i.e. prevent the electromagnetic field generated by the heat-dissipating element 3 from diffusing out and prevent the electromagnetic field from being affected by an external electromagnetic field.

  In this embodiment, the heat-dissipating element 3 is close to the right longitudinal end L1 of the right side of the side frame 2, and the heat conducting region 11 is generally provided near the right longitudinal end L1. The heat conducting region 11 is relatively close to the right longitudinal end L1, so that heat is concentrated more on the right longitudinal end L1. In order to improve this situation, the heat insulating region 12 is provided near the right longitudinal end L1. Of course, in other embodiments, depending on the actual needs, the heat insulating region 12 may also be provided between the heat conducting region 11 and the short end D, or the heat conducting region 11 and the other long end. It may be provided between L. Or the heat insulation area | region 12 may be separately arrange | positioned between the heat conductive area | region 11 and the longitudinal end L, and between the heat conductive area | region 11 and the short end part D. FIG.

  For further improvement, the mobile terminal may include a side frame 2, which surrounds the holder 1, and the insulating region 12 may completely separate the heat-dissipating element 3 from the side frame 2. The insulating region 12 completely separates the heat-dissipating element 3 from the side frame 2, so that when heat generated from the heat-dissipating element 3 is transferred to the side frame 2, heat can pass through the insulating region 12, As a result, all heat is blocked and the heat insulating effect of the heat insulating region 12 is improved.

  In this embodiment, two end portions provided to face each other along the longitudinal end portion L direction of the heat insulating region 12 are respectively provided to face each other along the longitudinal end portion L direction of the heat conduction region 11. Beyond one end. The size of the heat insulating region along the longitudinal end portion L direction is larger than the size of the heat conducting region 11 along the longitudinal end portion L direction. Thus, when the heat-dissipating element 3 releases heat, heat is transferred to the heat conducting region 11, and when heat in the heat conducting region 11 is transferred to the side frame, the heat passes through the heat insulating region 12, and as a result, The heat insulating region 12 can block heat in the heat conducting region 11. Of course, in another embodiment, the mobile terminal 100 may perform further analysis according to the main heat distribution in the heat transfer area 11 and then set the size of the heat insulation area 12 accordingly. That is, the length of the heat insulating region 12 along the direction in which the length of the holder 1 is extended is as long as that of the heat conducting region 11 along the holder 1 as long as the heat receiving at the side portion of the mobile terminal 100 can actually satisfy the required condition. The length of the heat insulating region 12 along the direction in which the length of the holder 1 is extended is not necessarily larger than the length, and may be shorter than or equal to the length of the heat conducting region 11 along the holder 1.

  For further improvement, referring to FIG. 5, the heat insulation region 12 is provided with a heat insulation cavity 121, which is vacuum or filled with air 5. The thermal conductivity of air 5 is approximately 0.026 W / m · K in a closed small gap, which is much smaller than that of another material. For example, the thermal conductivity of plastic is greater than 0.2 W / m · K, the thermal conductivity of metal is in the range of 10 to 400 W / m · K, and the thermal conductivity of glass is approximately 2 W / m · K. K. The above listed materials are generally used to manufacture the holder 1. As a result of the medium having a relatively small thermal conductivity being introduced into the material having a relatively large thermal conductivity, a thermal resistance is formed in the holder 1 where the medium having a relatively small thermal conductivity is introduced. , Thereby forming a heat insulating region 12. Since the vacuum is not thermally conductive or the air 5 in the cavity has a small thermal conductivity, a thermal resistance is formed in the holder 1 where a medium with a relatively small thermal conductivity is introduced, resulting in The heat insulation effect is better. In this embodiment, the insulating cavity 121 is filled with air 5. In general, in the prior art, the air 5 is present in the mobile terminal 100. It is a relatively simple method for the heat-insulating cavity 121 to have the air 5 so that the heat-insulating cavity 121 can have a heat-insulating effect, or the inside of the mobile terminal 100 can be used to evacuate the heat-insulating cavity 121. It may be placed in a vacuum environment. Of course, in other embodiments, the insulating cavities 121 may also form a thermal resistance in other ways. For example, the thermal insulation cavity 121 is configured to accommodate a low thermal conductivity material, which has a thermal conductivity range of 0-0.026 W / m · K. In another embodiment, the insulating region 12 may be formed from a low low thermal conductivity material, which has a thermal conductivity range of 0-0.026 W / m · K. The heat insulating region 12 is formed from a material having a thermal conductivity range of 0 to 0.26 W / m · K, and the thermal conductivity of a material whose thermal conductivity is within the thermal conductivity range is that of another material. Much smaller than thermal conductivity. For example, the metal has a thermal conductivity of 10 to 400 W / m · K, and the glass has a thermal conductivity of about 2 W / m · K. The above listed materials are generally used to manufacture the holder 1. As a result of the medium having a relatively small thermal conductivity being introduced into the material having a relatively large thermal conductivity, a thermal resistance is formed in the holder 1 where the medium having a relatively small thermal conductivity is introduced. , Thereby forming a heat insulating region 12.

  For further improvement, the insulating cavity 121 is at least one strip-shaped hole or at least one elliptical hole. The heat insulation region 12 is provided with a hole-shaped heat insulation cavity 121, and as a result, the processing in the holder 1 is relatively simple. In this embodiment, the thermal insulation cavity 121 is at least one strip-shaped hole. Of course, in another embodiment, the thermal insulation cavity 121 may also be at least one elliptical hole or another shaped hole.

  The heat-dissipating element 3 may be a heating tip, and there are three insulating cavities 121, which are strip-shaped holes. The holes have a length of 5 mm, a width of 1 mm, and the gap between the holes is greater than 1 mm and less than 2 mm.

  For further improvement, the area of the insulating cavity 121 occupies at least 50% of the area of the insulating area 12. The heat insulating cavity 121 is vacuum or filled with air 5, so that the heat conduction characteristics of the heat insulating cavity 121 are further weakened and a heat resistance is formed. Therefore, a larger area of the heat insulating cavity 121 shows a better heat insulating effect of the heat insulating area 12.

  In this embodiment, considering the general strength of the material of the holder 1, there are seven insulating cavities 121, which are strip-shaped holes. Each of the plurality of strip-shaped holes has a dimension of 5 mm along the direction of the longitudinal end L (i.e., each of the plurality of strip-shaped holes is 5 mm along the direction of the longitudinal end L). Have a length). The strip-shaped hole has a dimension of 1 mm along the direction perpendicular to the long end L (ie, each of the plurality of strip-shaped holes has a length of 1 mm along the direction of the short end. Have). The spacing between two adjacent strip-shaped holes is 2 mm. The area of the heat insulating cavity 121 occupies approximately 50% of the heat insulating area 12.

  Referring to FIG. 6, if the strength of the holder 1 is higher, the thermal insulation cavity 121 may also be a single strip shaped hole. That is, the region of the heat insulating cavity 121 occupies 100% of the heat insulating region 12, thereby realizing a better heat insulating effect.

  Of course, in the second embodiment, as shown in FIG. 7, the heat insulating cavity 221 includes at least one groove 221 a, and the groove 221 a is provided at the end of the heat insulating region 22. Due to the presence of the groove 221a, an inner tooth-like structure is formed at the end of the heat insulating region 22. Considering the strength of the material of the holder 1, the heat insulating cavity 221 may include seven grooves 221a. Each of the grooves 221a has a dimension of 5 mm along the direction of the longitudinal end L (ie, each of the grooves 221a has a length of 5 mm along the direction of the longitudinal end L). The groove 221a has a dimension of 1.5 mm along the direction perpendicular to the long end L (that is, the groove has a length of 1.5 mm along the direction of the short end). The distance between two adjacent grooves 221a is 2 mm. The area of the heat insulation cavity 221 occupies approximately 50% of the heat insulation area 22.

  As shown in FIG. 8, when the strength of the holder 1 is higher, the heat insulating cavity 221 may also include one groove 221a. That is, the region of the heat insulating cavity 221 occupies 100% of the heat insulating region 22, thereby realizing a better heat insulating effect. In another embodiment, depending on the actual needs, the insulating cavities 221 may also be provided on the same holder 1 in the form of holes and grooves 221a.

  Referring to FIG. 9, there is a heat distribution status after the heat insulating cavity 121 is provided in the holder 1. The heat in the mobile terminal 100 is evenly distributed, and the heat is not concentrated on the side frame 2 of the mobile terminal 100.

  For further improvement, the material of the holder 1 is a heat conducting material. The heat in the heat release element 3 is quickly transferred to the holder 1 due to the thermal conductivity of the holder 1, and then the heat is transferred to the outside of the mobile terminal 100. As a result, the heat dissipation process in the mobile terminal 100 is more effective. It is. In this embodiment, the material of the holder 1 may be graphite in order to ensure the heat conduction characteristics of the holder 1. When the holder 1 is arranged between the display screen and the circuit board, heat in the circuit board can be quickly transferred by the holder 1. Further, the heat in the holder 1 can be quickly transferred to the outside of the mobile terminal 100 due to the high thermal conductivity of the holder 1, and as a result, the heat dissipation process of the mobile terminal 100 is more effective. Of course, in other embodiments, depending on the actual needs of the mobile terminal 100, the material of the holder 1 may also be another material. For example, if the mobile terminal 100 does not have a relatively high requirement for heat dissipation performance, the material of the holder 1 may also be a material with a relatively low thermal conductivity characteristic.

  When the installation of the mobile terminal 100 is started, first, the heat-dissipating element 3 needs to be placed in the vicinity of the heat-conducting area 11, and the shield can and the heat-conducting medium are the As a result, it implements a shielding effect and a heat conduction effect. When the heat-dissipating element 3 starts generating heat, heat is transferred from the heat-dissipating element 3 to the holder 1 due to the thermal conductivity of the holder 1, and then the holder 1 transfers the heat to the side frame 2 of the mobile terminal 100. introduce. In the process of transferring the heat in the heat conducting region 11 to the side, the presence of the heat insulating region 12 prevents the heat from being formed by the thermal resistance formed in the heat insulating region 12, so that the heat in the side is relatively low, Thereby, it is ensured that the heat in the side frame 2 of the housing of the mobile terminal 100 is relatively low.

  Holder 1 is a display screen holder.

  According to the mobile terminal 100 provided in this embodiment of the present invention, a heat insulating region 12 is provided on the holder 1, the heat insulating region 12 is near the end of the holder 1 and adjacent to the heat conducting region 11. As a result, in the process of transferring the heat in the heat conducting region 11 to the side frame 2, the heat is blocked by the heat insulating region 12, thereby reducing the heat in the side frame 2.

  Moreover, the heat insulation area | region 12 isolate | separates the heat-dissipation element 3 completely from the side frame 2, As a result, the heat insulation effect of the heat insulation area | region 12 is improved. The heat insulation area 12 is provided with a heat insulation cavity 121, which is vacuum or filled with air 5, so that the heat insulation is implemented in the heat insulation area 12 relatively easily. The heat insulating region 12 is formed of a low heat conductive material, and the low heat conductive material has a heat insulating thermal conductivity range of 0 to 0.026 W / m · K, and as a result, the heat insulating effect of the heat insulating region 12. Is better. The heat insulating cavity 121 is at least one strip-shaped hole or at least one elliptical hole, so that the treatment with the holder 1 is relatively simple. The insulating cavity 121 includes at least one groove 221, which is provided at the end of the insulating region 12, so that various provisions for the insulating cavity 121 exist. The region of the heat insulating cavity 121 occupies at least 50% of the region of the heat insulating region 12, and as a result, the heat insulating effect of the heat insulating region 12 is better. The material of the holder 1 is a heat conductive material, and as a result, the heat dissipation process in the mobile terminal 100 is more effective.

  Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention and do not limit the present invention. Although the present invention has been described in detail with respect to the above-described embodiments, those skilled in the art will not depart from the spirit and scope of the technical solutions of the above-described embodiments of the present invention. Those skilled in the art should understand that the technical solutions described in the above embodiments can be modified or equivalent replacements can be made for some technical features thereof. .

Claims (18)

A holder,
A side frame surrounding the holder;
A display screen,
A heat dissipation element on the circuit board;
With
The holder is located between the display screen and the circuit board;
The holder has a heat conducting region and a heat insulating region;
The heat insulating region is provided between the heat conducting region and an end of the holder;
The heat conducting region is formed of metal;
The mobile terminal, wherein heat generated by the heat-dissipating element is transferred to the heat transfer area, and in the process of transferring the heat in the heat transfer area to the side frame, the heat is blocked by the heat insulating area. The thermal insulation region is formed from a low thermal conductivity material;
The mobile terminal according to claim 1, wherein the low thermal conductive material has a thermal conductivity range of 0 to 0.026 W / m · K. The mobile terminal according to claim 1, wherein the heat insulation region has at least one heat insulation cavity. The mobile terminal according to claim 3, wherein the thermal insulation cavity is vacuum or filled with air. The mobile terminal according to claim 3 or 4, wherein the thermal insulation cavity is at least one strip-shaped hole or at least one elliptical hole. The mobile terminal according to claim 3 or 4, wherein the heat insulating cavity has at least one groove provided at an end of the heat insulating region. The mobile terminal according to any one of claims 3 to 6, wherein an area of the heat insulating cavity occupies an area of at least 50% of the heat insulating area. The material of the heat insulating region is a low heat conductive material,
The low thermal conductivity material has a thermal conductivity range of 0-0.026 W / m · K,
The material of the heat conduction region is a high heat conduction material,
The mobile terminal according to claim 1, wherein the high thermal conductivity material has a thermal conductivity range of 10 to 400 W / m · K. The mobile terminal according to claim 1, wherein the heat insulation region is provided with a hole-shaped heat insulation cavity. The mobile terminal according to claim 9, wherein the insulating cavity is at least one strip-shaped hole or at least one elliptical hole. The mobile terminal according to claim 1, further comprising a shield can surrounding the heat-dissipating element on the circuit board. The mobile terminal according to claim 1, wherein the heat release element is a heating chip. The mobile terminal according to claim 1, wherein the mobile terminal is a smartphone or a tablet computer. A metal holder;
A side frame surrounding the metal holder;
A display screen,
A heat dissipation element on the circuit board;
With
The metal holder is located between the display screen and the circuit board;
The metal holder has a heat conducting region and at least one insulating cavity;
The thermal insulation cavity is provided between the heat conducting region and an end of the metal holder;
The heat insulating cavity is a hole-shaped heat insulating cavity;
The mobile terminal, wherein heat generated by the heat dissipating element is transferred to the heat transfer area, and in the process of transferring the heat in the heat transfer area to the side frame, the heat is blocked by the heat insulating cavity. The mobile terminal according to claim 14, wherein the thermal insulation cavity is at least one strip-shaped hole or at least one elliptical hole. The mobile terminal according to claim 14, further comprising a shield can surrounding the heat-dissipating element on the circuit board. The mobile terminal according to claim 14, wherein the heat-dissipating element is a heating chip. The mobile terminal according to claim 14, wherein the mobile terminal is a smartphone or a tablet computer.