CN108934150B - Housing assembly and electronic device - Google Patents

Abstract

The embodiment of the present application provides a housing assembly and an electronic device, wherein the housing assembly includes a middle frame and a metal heat conductive sheet, wherein the metal heat conductive sheet is suitable for assembly and connection with the middle frame, and the metal heat conductive sheet includes a first heat conductive portion and a second heat conductive portion. The electronic device is provided with a metal heat conductive sheet, and the metal heat conductive sheet is provided with a first heat conductive portion and a second heat conductive portion, so that the heat generated by the electronic device is evenly dispersed through the first heat conductive portion and the second heat conductive portion, so as to reduce the temperature of the heat-generating area, increase the operating speed of the electronic device, and improve the control experience.

Description

Housing assembly and electronic device

technical field

The present application relates to the technical field of electronic devices, and in particular, to a housing assembly and an electronic device.

Background technique

When the existing electronic equipment is working, various electrical components will generate a lot of heat, causing the electronic equipment to freeze. At the same time, after a large amount of heat is generated, it becomes difficult for the user to hold it. Therefore, it is urgent to improve the heat dissipation effect of the electronic equipment.

SUMMARY OF THE INVENTION

The purpose of the present application is to provide a casing assembly and an electronic device, so as to improve the heat dissipation effect of the casing assembly and the electronic device.

In a first aspect, an embodiment of the present application provides a case assembly, the case assembly includes a middle frame and a metal heat-conducting sheet, the metal heat-conducting sheet is suitable for being assembled and connected to the middle frame, and the metal heat-conducting sheet includes a first heat-conducting portion and a second heat-conducting portion. department.

In a second aspect, an embodiment of the present application provides an electronic device, including a middle frame, a first heating component, a second heating component, a metal heat-conducting sheet, and a back cover. The first heating component is mounted on the middle frame, and the second heating component is installed on the middle frame. Installed on the middle frame, the metal heat-conducting sheet is assembled and connected to the middle frame, the metal heat-conducting sheet includes a first heat-conducting part and a second heat-conducting part, the first heat-conducting part contacts and covers the first heat-generating component, and the second heat-conducting part contacts and covers the second heat-generating component. , the back cover is located on one side of the metal heat-conducting sheet, and is assembled and connected with the middle frame.

In the case assembly and the electronic device provided by the present application, a metal heat-conducting sheet is provided, and the metal heat-conducting sheet is provided with a first heat-conducting part and a second heat-conducting part, and the heat generated by the electronic device is uniformly distributed by the first heat-conducting part and the second heat-conducting part. Dispersion to reduce the temperature of heat-producing areas, improve the operating speed of electronic equipment, and improve the control experience.

These and other aspects of the present application will be more clearly understood in the description of the following embodiments.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the drawings that are used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can also be obtained from these drawings without creative effort.

FIG. 1 is a schematic view of the disassembled structure of the housing assembly provided by the first embodiment of the present application;

FIG. 2 is a schematic structural diagram of the metal thermally conductive sheet provided in the first embodiment of the present application

Fig. 3 is a partial cross-sectional view along line A-A in Fig. 2;

FIG. 4 is a schematic diagram of the disassembled structure of the housing assembly provided by the second embodiment of the present application;

5 is a partial cross-sectional schematic diagram of a connecting portion provided by a second embodiment of the present application;

6 is a schematic cross-sectional structural diagram of the housing assembly provided in the second embodiment of the present application in an assembled state;

7 is a schematic diagram of a partial structure of an electronic device provided by a third embodiment of the present application;

FIG. 8 is a partial cross-sectional view of the electronic device of FIG. 7 .

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

With the rapid development of electronic devices (such as mobile terminals), the assembly structure of electronic devices is more compact, and components such as motherboards, processors, and batteries will generate a lot of heat during operation. If the heat is not dissipated in time, the motherboard will be damaged. The temperature of the respective areas such as , processor and battery rises sharply, which affects the running speed of the processor and the control experience. Therefore, the inventor proposes the housing assembly and the electronic device in the embodiments of the present application. The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

first embodiment

Referring to FIG. 1 , the present embodiment provides a casing assembly 20a, the casing assembly 20a includes a middle frame 100 and a metal heat-conducting sheet 200a, wherein the middle frame 100 includes a mounting member 120 and a frame 110, and the frame 110 is formed in a ring shape. The device 120 is assembled on the frame 110 and located in the frame 110 . The device 120 can be connected to the frame 110 by means of integral molding, glue dispensing or welding. The device 120 can be used to install various electrical components. The middle frame 100 is provided with an inner surface 123 for arranging various electrical components.

Referring to FIG. 2, the metal thermal conductive sheet 200a is made of a metal sheet, such as Cu, Al, Au, Fe and other metals or various types of alloys thereof. The metal heat-conducting sheet 200a is suitable for being assembled and connected with the middle frame 100. For example, the metal heat-conducting sheet 200a can be connected to the middle frame 100 in a detachable connection manner, or fixed to the middle frame 100 by means of glue dispensing.

The metal heat-conducting sheet 200a includes a first heat-conducting part 210 and a second heat-conducting part 220, and the first heat-conducting part 210 and the second heat-conducting part 220 can conduct heat respectively corresponding to different heating elements. In some embodiments, the first heat conducting part 210 and the second heat conducting part 220 may be integrally formed on the same metal sheet. In some other embodiments, the first heat conducting portion 210 and the second heat conducting portion 220 may be formed of independent metal sheets, respectively. During assembly, the first heat conducting portion 210 and the second heat conducting portion 220 are in contact with each other. Conduct heat. In this embodiment, the size of the metal heat conducting sheet 200 a is slightly smaller than the plane area enclosed by the frame 110 of the middle frame 100 , which can cover the main heating elements such as the main board and the power supply disposed on the middle frame 100 .

In this embodiment, the first heat-conducting portion 210 corresponds to an area of the middle frame 100 where the mainboard is disposed, and is configured in the same configuration as the mainboard area, and is used to conduct the mainboard or electrical components (such as processors, storage, etc.) The second heat conducting part 220 corresponds to the area of the middle frame 100 where the battery is disposed, and is configured in the same configuration as that of the battery for conducting heat generated during the operation of the battery. The first heat conduction part 210 and the second heat conduction part 220 are integrally connected.

2 and 3 , the metal thermally conductive sheet 200a has a first surface 201 and a second surface 202, and the first surface 201 and the second surface 202 are located on opposite sides of the metal thermally conductive sheet 200a. The first heat conducting portion 210 is provided with an assembly through hole 211 , and the assembly through hole 211 penetrates through the first surface 201 and the second surface 202 . The assembly through holes 211 can be used for extending components such as the fingerprint module and the camera module. In some embodiments, only one or more assembly through holes 211 may be provided according to the arrangement requirements of each component. In some other embodiments, the assembly through holes 211 may not be provided. In this embodiment, the number of the assembling through hole 211 is one, and is used for the fingerprint module to protrude from the assembling through hole 211 .

During assembly, the first surface 201 of the metal heat-conducting sheet 200a and the inner surface 123 of the middle frame 100 are bonded by glue. It is electrically connected to the metal thermally conductive sheet 200 a so that the electric charges generated from the metal thermally conductive sheet 200 a can be transferred to the middle frame 100 . In some embodiments, the metal thermal conductive sheet 200a may also be connected to the grounding elastic sheet and the middle frame 100 to be grounded.

The housing assembly 20a provided in this embodiment can be applied to an electronic device, and its working principle is that the first heat-conducting portion 210 of the metal heat-conducting sheet 200a can be attached to the first heating element of the electronic device and conduct heat generated by the first heating element , the second heat-conducting portion 220 can be attached to the second heating element of the electronic device and conduct heat generated by the second heating element. When the electrical components disposed on the inner surface 123 of the middle frame 100 generate heat, the heat is transferred to the metal heat-conducting sheet 200a in time and spreads to the whole machine on the metal heat-conducting sheet 200a, thereby increasing the heat dissipation area and realizing rapid heat dissipation.

It can be understood that a heating element refers to an electrical element that generates heat during operation, such as a motherboard, a processor, a battery, and the like.

Second Embodiment

Referring to FIGS. 4 , 5 and 6 , the present embodiment provides a housing assembly 20b. The difference between the housing assembly 20b and the housing assembly 20a in the first embodiment is that the structure of the metal heat-conducting sheet 200b is different. The assembly 20b further includes a fixing member 500 , a front case 300 and a rear cover 400 . For the same part, refer to the first embodiment.

Specifically, the metal heat-conducting sheet 200b includes a heat-conducting body 203 and a connecting portion 230 connected to the heat-conducting body 203 . One side of the surface 201 protrudes, and the connecting portion 230 is used for connecting and fixing with the middle frame 100 .

In this embodiment, the connecting portion 230 includes a plurality of presser feet, the plurality of presser feet are connected to the heat conducting body 203 , and the presser feet are provided with first fixing holes 244 , which penetrate the presser feet and are used to fix the presser feet. The connection position of the presser foot and the heat conducting body 203 may be the edge of the heat conducting body 203 , or may be connected to the inner area of the heat conducting body 203 . Referring to FIG. 5 , the presser foot includes a first presser foot 250 and a second presser foot 240 . The first presser foot 250 is bent relative to the thermally conductive body 203 , and the extension direction of the first presser foot 250 is between the first plane of the thermally conductive body 203 . A first included angle α is formed, and the first included angle α may be, for example, 90-150°. The second presser foot 240 is bent relative to the first presser foot 250 and connected to the first presser foot 250 .

The second presser foot 240 has a grounding surface 243 , and the grounding surface 243 is used for contacting and connecting with the inner surface 123 of the mounting member 120 . The ground plane 243 is located on the side of the second presser foot 240 facing the inner surface 123 of the middle frame 100 . In some embodiments, the ground plane 243 may be disposed parallel to the first surface 201 , and the second presser foot 240 is completely abutted with the inner surface 123 during connection.

In this embodiment, the second presser foot 240 includes a first end 241 and a second end 242 , wherein the first end 241 is connected to the first presser foot 250 , and the second end 242 is tilted toward the thermally conductive body 203 relative to the first end 241 From now on, the first fixing hole 244 is located between the first end 241 and the second end 242 . In some embodiments, the axis of the first fixing hole 244 is perpendicular to the first surface 201 . The advantage of this arrangement is that after the second presser foot 240 is attached to the inner surface 123 of the mounting member 120 through the fixing member 500 , the second presser foot 240 is subjected to greater elasticity due to the bent portion relative to the first presser foot 250 . Deformation force, when the fixing member 500 is loosened, the second presser foot 240 will have a tendency to recover its deformation in the direction of the second surface 202, so that the second presser foot 240 can always be in contact with the fixing member 500 to ensure that the second presser foot 240 fixed effect.

In some embodiments, the metal thermally conductive sheet 200b can be electrically connected to the middle frame 100 through the second presser foot 240 , so that the electric charges generated from the metal thermally conductive sheet 200b can be transferred to the middle frame 100 to realize the grounding of the middle frame 100 . At this time, since the second presser foot 240 and the fixing member 500 can maintain continuous contact, the grounding effect can be ensured. To avoid grounding failure due to the second presser foot 240 being out of contact with the inner surface 123 and the fixing member 500 after the fixing member 500 is released.

A second angle β is formed between the extending direction of the second presser foot 240 and the extending direction of the first presser foot 250 , and β may be, for example, 15-90°. It can be understood that, in other embodiments, the axial direction of the first fixing hole 244 can also be set to be perpendicular to the ground plane 243 .

The fixing member 500 is mainly used to connect the connecting portion 230 to the mounting member 120 . The fixing member 500 can be in the form of a screw, a screw rod or a pin, for example. In some embodiments, when the connecting portion 230 is grounded through the fixing member 500 , The member 500 can be made of metal material, for example, and in some embodiments, the fixing member 500 can also be made of plastic or other materials. In this embodiment, the fixing member 500 is a screw.

Referring to FIG. 6 , the middle frame 100 is provided with a mounting portion 121 , and the mounting portion 121 is used for mating connection with the connecting portion 230 . In this embodiment, the mounting portion 121 is formed on the sinking portion 122 of the middle frame 100 , and the sinking portion 122 is formed by the downward depression of the inner surface 123 of the mounting member 120 . Correspondingly, at the same time, the setting position of the sinking portion 122 corresponds to the position of the connecting portion 230 . During assembly, the presser feet extend into the sinking portion 122 and are connected to the middle frame 100 through the fixing member 500. This arrangement can hide the fixing member 500 in the sinking portion 122, and make the inner surface 123 of the middle frame 100 more comfortable. smooth. Specifically, both the first presser foot 250 and the second presser foot 240 protrude into the sinking portion 122 , and the depth of the sinking portion 122 is suitable for the grounding surface 243 of the second presser foot 240 to just fit therewith, so that the The first surface 201 of the metal heat-conducting sheet 200b can be more closely attached to the inner surface 123 . It can be understood that it is also feasible to set the depth of the sinking portion 122 to be deeper or shallower.

The sinking portion 122 is provided with a second fixing hole 124. The second fixing hole 124 corresponds to the first fixing hole 244 and cooperates with each other. Presser foot connection. In some embodiments, the second fixing hole 124 may be provided in the form of a blind hole, that is, not passing through the mounting member 120 . In this embodiment, the second fixing hole 124 is a through hole and penetrates through the mounting member 120 .

In other embodiments, the middle frame 100 may not be provided with the sinking portion 122 , and in this case, the presser foot may be directly fixed to the inner surface 123 of the middle frame 100 through the fixing member 500 .

In some embodiments, the inner surface 123 of the middle frame 100 is used for disposing various types of electrical components, and a certain gap will be created between the electrical components. In this case, the metal heat-conducting sheet 200b cannot completely connect with the electrical components or the inner surface. 123 for fitting. In order to make the metal heat-conducting sheet 200b fit more closely with the inner surface 123 and achieve better heat-conducting effect, in this embodiment, the heat-conducting body 203 further includes a pressing portion 260 , and the pressing portion 260 is opposite to the first heat-conducting portion 210 . and the second heat conducting portion 220 protrudes toward the middle frame 100 . When the metal heat-conducting sheet 200b is in contact with the electrical components disposed on the inner surface 123 , the pressing portion 260 may protrude from the gap between the electrical components to be in contact with the inner surface 123 .

In this embodiment, please continue to refer to FIG. 6 , the pressing portion 260 can also be fixed to the inner surface 123 of the mounting member 120 by the fixing member 500 in the pressing portion 260 . On the one hand, the pressing portion 260 and the inner surface 123 can be The fit is tighter, and on the other hand, the metal thermal conductive sheet 200b and the electrical components can be pressed tightly to prevent the electrical components from loosening, and the heat generated by the electrical components can be better conducted to the metal thermal conductive sheet 200b and then to the electronic components. The casing of the device is lost. It can be understood that, in some embodiments, the pressing portion 260 may not be fixed by the fixing member 500 , but only fit with the inner surface 123 .

In this embodiment, the pressing portion 260 is disposed between the first heat-conducting portion 210 and the second heat-conducting portion 220 . In this area, there are fewer electrical components disposed on the inner surface 123 of the middle frame 100 . Close to the middle position of the metal heat-conducting sheet 200b, a better fixing effect can be achieved by setting the pressing portion 260 to abut against the inner surface 123 and fix it.

The front case 300 is a part of the case assembly 20b, and when applied to an electronic device, it is usually located directly in front of the electronic device. Taking a mobile phone as an example, the front case 300 refers to a part of the casing of the mobile phone for setting the display screen. In this embodiment, the front case 300 is assembled and connected to the middle frame 100 . Specifically, the front case 300 is assembled on the side of the middle frame 100 opposite to the metal heat conducting sheet 200b. Referring to FIG. 6 , the front case 300 includes a front case frame 310 and a connecting member 320 , and the front case frame 310 has substantially the same structure as the frame 110 . The frame 310 of the front case and the frame 110 are engaged with each other.

In some embodiments, the connecting member 320 may be made of a metal material, such as a magnesium-aluminum alloy. At this time, the fixing member 500 may be connected to the connecting member 320 through the second fixing hole 124 to achieve electrical communication. 200b, the middle frame 100 and the front case 300 are electrically connected, so that the electric charges can be transferred between the metal thermal conductive sheet 200b, the middle frame 100 and the front case 300. In this embodiment, the connecting member 320 is provided with a third fixing hole 321 . The setting position of the third fixing hole 321 corresponds to the second fixing hole 124 , and the third fixing hole 321 is connected with the first fixing hole 244 and the second fixing hole 124 In cooperation with each other, the fixing member 500 can be inserted, and the presser foot can be electrically connected to the connecting member 320 through the fixing member 500 .

The back cover 400 is used for attaching to the metal heat-conducting sheet 200b and assembling with the middle frame 100. The back cover 400 is plate-shaped and can be made of various materials such as metal, ceramic, glass, etc., and is arranged on one side of the metal heat-conducting sheet 200b during assembly. And press the metal heat-conducting sheet 200b against the middle frame 100 .

The housing assembly 20b provided in this embodiment can be applied to the electronic device 10 as shown in FIG. 7 , which can evenly conduct and distribute the heat generated by the electrical components disposed in the middle frame 100 to the electronic device 10 to accelerate heat dissipation the goal of.

Third Embodiment

Referring to FIGS. 7 and 8 , the present embodiment provides an electronic device 10 , the electronic device 10 includes a middle frame 100 , a first heating component 610 , a second heating component 620 , a metal heat-conducting sheet 200 , a camera module 30 , and a fingerprint module Group 700 and back cover 400 . The middle frame 100 is used for accommodating and installing the first heating element 610 and the second heating element 620 , and the rear cover 400 is assembled on the middle frame 100 . The fingerprint module 700 and the camera module 30 are both assembled on the middle frame 100 , wherein the fingerprint module 700 can be matched with the assembly through hole 211 .

In this embodiment, the specific structure of the middle frame 100 is the same as that of the first embodiment, and the structure of the metal heat-conducting sheet 200 is the same as that of the second embodiment. For the same parts, please refer to the first embodiment or the second embodiment for details.

Specifically, in this embodiment, the first heating component 610 and the second heating component 620 are both assembled and connected to the inner surface 123 of the middle frame 100 , and the first heating component 610 and the second heating component 620 are respectively the main board and the battery. It should be understood that In other embodiments, the first heating component 610 and the second heating component 620 may also be a processor, a memory, and the like.

The first heat-conducting portion 210 covers the first heat-generating component 610 , and the second heat-conducting portion 220 covers the second heat-generating component 620 . The coverage here means that the first heat-conducting portion 210 or the second heat-conducting portion 220 is attached to the first heat-generating component. 610 or the second heating element 620 , so that the heat generated by the first heating element 610 can be quickly conducted to the first heat conducting portion 210 , and the heat generated by the second heating element 620 can be rapidly conducted to the second heat conducting portion 220 .

The back cover 400 is plate-shaped and made of glass material. It is located on one side of the metal heat-conducting sheet 200 and is attached to the middle frame 100 . Specifically, it is located on the side of the second surface 202 of the metal heat-conducting sheet 200 and is connected with the middle frame. 100 bond. In some other embodiments, the back cover 400 can also be made of metal, ceramic, plastic, etc., and it can also be assembled with the middle frame 100 by welding, clipping, or the like.

In the electronic device provided in this embodiment, since the metal heat-conducting sheet 200 is provided, when the first heat-generating component 610 and/or the second heat-generating component 620 generate heat, the first heat-conducting portion 210 and the second heat-conducting portion 220 can conduct the heat to the The metal heat-conducting sheet 200 conducts heat to the whole machine through the metal heat-conducting sheet 200 to expand the heat dissipation area and avoid heat concentration in a local area, causing the temperature of the local area of the electronic device to rise sharply, affecting the control. Meanwhile, since the metal heat conducting sheet 200 is made of metal, it is disposed between the back cover 400 and the middle frame 100 , which can enhance the strength of the back cover 400 and prevent the back cover 400 from being damaged in the event of a collision or drop.

Exemplarily, the electronic device 10 may be any one of various types of computer system devices that are mobile or portable and perform wireless communication (only one form is exemplarily shown in FIG. 1 ). Specifically, the electronic device 10 can be a mobile phone or smart phone (eg, iPhone TM-based, Android TM-based phone), portable gaming device (eg Nintendo DS TM, PlayStation Portable TM, Gameboy Advance TM, iPhone TM), laptop Computers, PDAs, portable Internet devices, music players, and data storage devices, other handheld devices and such as watches, earphones, pendants, earphones, etc., the electronic device 10 can also be other wearable devices (eg, such as electronic glasses, electronic Clothing, electronic bracelets, electronic necklaces, electronic tattoos, head-mounted devices (HMDs) for electronic devices or smart watches).

Electronic device 10 may also be any of a number of electronic devices including, but not limited to, cellular phones, smart phones, other wireless communication devices, personal digital assistants, audio players, other media players, music recorders , video recorders, cameras, other media recorders, radios, medical equipment, vehicle transportation equipment, calculators, programmable remote controls, pagers, laptops, desktop computers, printers, netbooks, personal digital assistants (PDAs), portable Multimedia players (PMP), Moving Picture Experts Group (MPEG-1 or MPEG-2) Audio Layer 3 (MP3) players, portable medical devices and digital cameras and combinations thereof.

In some cases, electronic device 10 may perform a variety of functions (eg, play music, display video, store pictures, and receive and send phone calls). If desired, electronic device 10 may be a portable device such as a cellular telephone, media player, other handheld device, wristwatch device, pendant device, handset device, or other compact portable device.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims (9)

1. A housing assembly, comprising:

a middle frame;

the metal heat conducting sheet is suitable for being assembled and connected with the middle frame and comprises a first heat conducting part and a second heat conducting part, the metal heat conducting sheet comprises a heat conducting body and a connecting part connected with the heat conducting body, the first heat conducting part and the second heat conducting part are arranged on the heat conducting body, the middle frame is provided with an installation part, the connecting part comprises a plurality of press feet, the press feet are connected with the heat conducting body and comprise a first press foot and a second press foot, the first press foot is bent relative to the heat conducting body, the second press foot is bent relative to the first press foot and is connected with the first press foot, and an included angle between the extending direction of the second press foot and the extending direction of the first press foot is larger than 15 degrees and smaller than 90 degrees; and

and the second presser foot is fastened to the mounting part through the fixing piece.

2. The housing assembly of claim 1 wherein said mounting portion includes a depressed portion formed in said center frame, said presser foot extending into said depressed portion and being connected to said center frame.

3. The housing assembly of claim 2 further comprising a front housing mounted to said center frame, said pressure foot being electrically connected to said front housing.

4. The housing assembly of claim 3 wherein said presser foot is provided with a first securing hole and said countersink is provided with a second securing hole, said first and second securing holes corresponding, said fastener passing through said first and second securing holes and electrically connecting to said front shell.

5. The housing assembly of claim 2, wherein the thermally conductive body further includes a pressing portion that protrudes toward the center frame relative to the first and second thermally conductive portions.

6. The housing assembly of claim 5, wherein the press portion is located between the first and second heat conductive portions.

7. The housing assembly of claim 1 wherein the connecting portion is bonded to the mounting portion by conductive glue.

8. The housing assembly of claim 1, wherein the first heat conducting portion is provided with a fitting through-hole.

9. An electronic device, comprising:

the housing assembly of any one of claims 1-8;

the first heating assembly is arranged on the middle frame;

the second heating component is arranged on the middle frame;

the metal heat conducting sheet is assembled and connected to the middle frame, the first heat conducting part is in contact with and covers the first heating assembly, and the second heat conducting part is in contact with and covers the second heating assembly; and

and the rear cover is positioned on one side of the metal heat-conducting fin and is assembled and connected with the middle frame.

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