CN108832036B

CN108832036B - Middle frame assembly and electronic equipment

Info

Publication number: CN108832036B
Application number: CN201810597194.6A
Authority: CN
Inventors: 田汉卿
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2018-06-11
Filing date: 2018-06-11
Publication date: 2021-12-03
Anticipated expiration: 2038-06-11
Also published as: CN108832036A

Abstract

The application provides a center subassembly and electronic equipment, this center subassembly includes center and first heat pipe, the center includes diapire and lateral wall, the diapire is connected in order to form a battery compartment that is used for holding battery module with the lateral wall, first heat pipe is connected with diapire and lateral wall heat conduction respectively, in order to produce at least partial heat conduction to the lateral wall in the diapire with battery module, also at least partial heat conduction to the lateral wall that produces battery module, improve battery module's radiating effect, reduce battery module's temperature, and then improve the security and the life that battery module used, and conduct at least partial heat to the lateral wall with the diapire, prevent that the high temperature of diapire from leading to local overheat, improve user's the sense of gripping.

Description

Middle frame assembly and electronic equipment

Technical Field

The application relates to the technical field of electronic equipment, in particular to a middle frame assembly and electronic equipment.

Background

The battery is used as a power supply of the mobile phone, a large amount of heat is generated during work and charging, so that the danger of using the battery is increased, the service life is shortened, the local temperature of the mobile phone is overhigh due to the heat generated by the battery, and the holding feeling for the mobile phone is reduced.

Disclosure of Invention

An aspect of an embodiment of the present application provides a middle frame assembly, where the middle frame assembly includes: the middle frame comprises a bottom wall and a side wall, and the bottom wall is connected with the side wall to form a battery compartment for accommodating a battery module; the first heat pipe is respectively in heat conduction connection with the bottom wall and the side wall so as to conduct at least part of heat generated by the bottom wall of the battery module to the side wall.

Another aspect of the embodiments of the present application further provides an electronic device, where the electronic device includes a battery module and a middle frame assembly, where the middle frame assembly includes: the middle frame comprises a bottom wall and a side wall, and the bottom wall is connected with the side wall to form a battery compartment for accommodating the battery module; the first heat pipe is respectively in heat conduction connection with the bottom wall and the side wall so as to conduct at least part of heat generated by the bottom wall of the battery module to the side wall.

The utility model provides a center subassembly includes center and first heat pipe, the center includes diapire and lateral wall, the diapire is connected in order to form a battery compartment that is used for holding the battery module with the lateral wall, first heat pipe is connected with diapire and lateral wall heat conduction respectively, in order to produce the battery module at least partial heat conduction to the lateral wall in the diapire, also conduct the at least partial heat that the battery module produced to the lateral wall, improve the radiating effect of battery module, reduce the temperature of battery module, and then improve the security and the life that the battery module used, and conduct the at least partial heat of diapire to the lateral wall, prevent that the high temperature of diapire leads to local overheat, improve user's the sense of gripping.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of an electronic device provided herein;

fig. 2 is a schematic top view of the battery module of fig. 1;

FIG. 3 is a schematic top view of the first embodiment of the center frame assembly of FIG. 1;

FIG. 4 is a schematic cross-sectional view of the middle frame of FIG. 3;

fig. 5 is a schematic top view illustrating the assembly of the battery module of fig. 2 and the middle frame of fig. 3;

FIG. 6 is a schematic top view of the middle frame of FIG. 3;

FIG. 7 is a schematic view of the condensation end of FIG. 3 disposed on the sidewall;

FIG. 8 is another schematic view of the condensing end of FIG. 3 disposed on the sidewall;

FIG. 9 is a schematic cross-sectional view of the first heat pipe of FIG. 3;

FIG. 10 is a schematic top view of the first heat pipe of FIG. 3;

FIG. 11 is another schematic top view of the first heat pipe of FIG. 3;

FIG. 12 is a further schematic top view of the first heat pipe of FIG. 3;

FIG. 13 is a further schematic top view of the first heat pipe of FIG. 3;

figure 14 is a schematic top view of a second embodiment of the center frame assembly of figure 1.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be noted that the following examples are only illustrative of the present application, and do not limit the scope of the present application. Likewise, the following examples are only some examples and not all examples of the present application, and all other examples obtained by a person of ordinary skill in the art without any inventive step are within the scope of the present application.

The terms "first", "second" and "third" in this application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any indication of the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise. All directional indications (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are only used to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of an electronic device 10 provided in the present application, where the electronic device 10 of the present embodiment may be any device having communication and storage functions, for example: tablet Computer, cell-phone, electronic reader, remote controller, Personal Computer (PC), notebook Computer, mobile device, network television, wearable equipment etc. have the intelligent equipment of network function, and the electronic equipment 10 of this embodiment includes including battery module 20 and center subassembly 30.

Referring to fig. 2, fig. 2 is a schematic top view of the battery module 20 shown in fig. 1, wherein the battery module 20 includes a battery 21 and a battery protection plate 22.

The battery 21 serves as a power source of the electronic device 10, and generates a large amount of heat during operation and charging; the battery protection board 22 is an integrated circuit board that prevents overcharge, overdischarge, and short circuits of the battery 21 (particularly, a lithium battery), and also generates a large amount of heat during operation.

With the continuous development of electronic technology, fast charging has become an indispensable function for devices such as smart phones and tablet computers, and is characterized in that a battery is charged by a large current, when the voltage of the battery 21 is higher than a preset upper limit value in the charging process, or when the voltage of the battery is lower than a preset lower limit value in the discharging process, or when the positive electrode and the negative electrode of the battery are short-circuited in the discharging process, an MOS (Metal Oxide Semiconductor) tube in the battery protection plate 22 is in an off state to disconnect the battery from an external device so as to prevent the battery 21 from being overcharged, overdischarged and short-circuited, and in the fast charging process, the MOS tube is in an on state, and at the moment, the resistance value is large, and the fast charging current is also large, and according to the power P ═ I²R, the battery protection plate 22 will generate a large amount of heat。

It is understood that in other embodiments, the battery module 20 may be the battery 21 without the battery protection plate 22.

Referring to fig. 1 and 3 together, fig. 3 is a schematic top view of a first embodiment of the middle frame assembly 30 of fig. 1, wherein the middle frame assembly 30 includes a middle frame 31 and a first heat pipe 32.

Referring to fig. 1 and 4 together, fig. 4 is a cross-sectional view of the middle frame 31 in fig. 3, the middle frame 31 includes a bottom wall 311 and a side wall 312, and the bottom wall 311 and the side wall 312 are connected to form a battery compartment 301 for accommodating the battery module 20.

Optionally, the number of the side walls 311 is at least two, and at least two side walls 311 are oppositely arranged.

It can be understood that, when the battery compartment 301 accommodates the battery module 20 and the battery module 20 is carried on the bottom wall 311, at least a portion of heat generated by the battery module 20 is transferred to the bottom wall 311, so that the bottom wall 311 generates heat.

Referring to fig. 5 and 6 together, fig. 5 is a schematic top view illustrating the assembly of the battery module 20 in fig. 2 and the middle frame 31 in fig. 3, fig. 6 is a schematic top view illustrating the middle frame 31 in fig. 3, a groove 311 is formed on the bottom wall 311, and the groove 311 extends from the bottom wall 311 to the side wall 312. Optionally, the number of the grooves 3111 may be one or more, and the grooves 3111 may be arranged in an array in a direction perpendicular to the extending direction of the grooves 3111, or the grooves 3111 are sequentially connected end to end, and two adjacent grooves are connected in a bent manner.

Optionally, the notch 3111 is disposed on the bottom wall 311 at a position corresponding to at least one of the battery 21 and the battery protection board 22, that is, the position of the notch 3111 on the bottom wall 311 at least partially coincides with a projection of at least one of the battery 21 and the battery protection board 22 on the bottom wall 311.

Further referring to fig. 3 and 5, the first heat pipe 32 is respectively connected to the bottom wall 311 and the side wall 312 in a heat conducting manner, so as to conduct at least part of heat generated by the battery module 20 from the bottom wall 311 to the side wall 312, that is, conduct at least part of heat generated by the battery module 20 to the side wall 312, improve the heat dissipation effect of the battery module 20, reduce the temperature of the battery module 20, further improve the safety and the service life of the battery module 20, and conduct at least part of heat generated by the bottom wall 311 to the side wall 312, so as to prevent local overheating caused by over-high temperature of the bottom wall 311, and improve the holding feeling of a user.

Optionally, the first heat pipe 32 is disposed in the groove 3111, so that the first heat pipe 32 does not occupy the space of the battery compartment 301, and thus does not affect the assembly of the battery module 20 in the battery compartment 301.

Optionally, the first heat pipe 32 is embedded in the bottom wall 311 through the groove 3111, and in other embodiments, the first heat pipe may also be disposed in the groove 3111 through other manners, such as an adhering manner.

Further, the first heat pipe 32 includes an evaporation end 321 and a condensation end 322, and the inside of the first heat pipe is in a negative pressure state, and is provided with a capillary material and a filled working liquid, when the evaporation end 321 is heated, the working liquid is gasified to form a vapor, the vapor flows to the condensation end 322 under the action of heat diffusion, and is liquefied at the condensation end 322 to release heat, the liquefied working liquid flows back to the evaporation end 321 under the capillary action of the capillary material, and the above circulation is performed to complete heat transfer. Therefore, in the present embodiment, the evaporation end 321 of the first heat pipe 32 is disposed on the bottom wall 311, and the condensation end 322 is disposed on the side wall 312, so as to conduct the heat received by the evaporation end 321 on the bottom wall 311 to the side wall 312 through the condensation end 322.

Referring to fig. 7 and 8 together, fig. 7 is a schematic view illustrating the condensation end 322 of fig. 3 disposed on the sidewall 312, fig. 8 is another schematic view illustrating the condensation end 322 of fig. 3 disposed on the sidewall 312, and the condensation end 322 may be disposed on the sidewall 312 as shown in fig. 7 and attached to the sidewall 312 or inserted into the sidewall 312 as shown in fig. 8.

Referring to fig. 9, fig. 9 is a schematic cross-sectional view of the first heat pipe 32 in fig. 3, in which at least one of the evaporation end 321 and the condensation end 322 has a gradually increasing cross-sectional area in a direction toward an end surface of at least one of the evaporation end 321 and the condensation end 322, that is, the evaporation end 321 has a gradually increasing cross-sectional area in a direction toward the end surface 3211, and/or the condensation end 322 has a gradually increasing cross-sectional area in a direction toward the end surface 3221, so as to increase an area of at least one of the end surface 3211 of the evaporation end 321 and the end surface 3221 of the condensation end 322, thereby increasing an efficiency of the evaporation end 321 receiving heat, and/or an efficiency of the condensation end 322 releasing heat, and further increasing a heat conduction efficiency of the first heat pipe 32.

Alternatively, the end surface 3211 of the evaporation end 321 and the end surface 3221 of the condensation end 322 may be configured to be circular, rectangular, or polygonal, and the like, without limitation.

Referring further to fig. 3 and 5, the first heat pipe 32 is used for conducting at least part of heat generated from the bottom wall 311 of at least one of the battery 21 and the battery protection plate 22 to the side wall 312.

Specifically, the first heat pipe 32 is disposed at a position on the bottom wall 311 corresponding to at least one of the battery 21 and the battery protection plate 22, that is, the position of the first heat pipe 32 on the bottom wall 311 at least partially coincides with a projection of at least one of the battery 21 and the battery protection plate 22 on the bottom wall 311, so as to reduce a distance between the first heat pipe 32 and at least one of the battery 21 and the battery protection plate 22 and increase efficiency of the first heat pipe 32 in conducting heat generated by at least one of the battery 21 and the battery protection plate 22 on the bottom wall 311, in fig. 3, two first heat pipes 32 are respectively disposed at positions on the bottom wall 311 corresponding to the battery 21 and the battery protection plate 22.

Optionally, the first heat pipe 32 is perpendicular to the side wall 312 in the direction extending from the evaporation end 321 to the condensation end 322.

Referring to fig. 10, fig. 10 is a schematic top view of the first heat pipe 32 in fig. 3, the first heat pipe 32 is disposed in an inclined manner with respect to the sidewall 311 to increase a heat conduction path of the first heat pipe 32, so as to prevent a problem that the heat conduction efficiency is reduced due to bending of the first heat pipe 32 in order to increase the heat conduction path of the first heat pipe 32.

Referring to fig. 11 and 12 together, fig. 11 is another schematic top view of the first heat pipe 32 in fig. 3, fig. 12 is another schematic top view of the first heat pipe 32 in fig. 3, the number of the first heat pipes 32 is multiple, and the multiple first heat pipes 32 may be connected end to end in sequence as shown in fig. 11 to increase the number of the first heat pipes 32, so as to increase the heat dissipation efficiency of the bottom wall 311, and two adjacent first heat pipes are bent to prevent the problem that the heat conduction efficiency is reduced due to the fact that one first heat pipe 32 needs to be bent, or as shown in fig. 12, the multiple first heat pipes 32 are arranged in an array in a direction perpendicular to the extending direction of the first heat pipes 32.

Referring to fig. 13, fig. 13 is a further schematic top view of the first heat pipe 32 in fig. 3, the first heat pipe 32 includes a first sub-heat pipe 32a and a second sub-heat pipe 32b, an evaporation end 321a of the first sub-heat pipe 32a is disposed on the bottom wall 311, a condensation end 321b of the first sub-heat pipe 32a is disposed on the sidewall 312, an evaporation end 322a of the second sub-heat pipe 32b is connected to the first sub-heat pipe 32a between the evaporation end 321a and the condensation end 321b of the first sub-heat pipe 32a, and a condensation end 322b of the second sub-heat pipe 32b is disposed on the sidewall 312.

Referring to fig. 1 and 4, a first heat sink 33 is further disposed on a side of the bottom wall 312 close to the battery compartment 301, and the first heat sink 33 is used for uniformly diffusing at least a portion of heat generated by the battery module 20 to the bottom wall 311, so as to prevent the battery module 20 from being damaged due to local overheating of the battery module 20.

Optionally, the first heat dissipation element 33 is attached to the bottom wall 311.

Optionally, the first heat dissipation member 33 is further attached to the first heat pipe 32, so that the first heat pipe 32 can directly contact with the first heat dissipation member 33 and directly receive heat of the first heat dissipation member 33.

Optionally, the first heat dissipation member 33 is graphite or copper foil.

Optionally, a second heat dissipation member 34 is further disposed on a side of the bottom wall 312 away from the battery compartment 301.

Optionally, the second heat dissipation element 34 is graphite or copper foil.

The center subassembly that this embodiment provided includes center and first heat pipe, the center includes diapire and lateral wall, the diapire is connected in order to form a battery compartment that is used for holding battery module with the lateral wall, first heat pipe is connected with diapire and lateral wall heat conduction respectively, in order to produce the battery module at least partial heat conduction to the lateral wall in the diapire, also conduct the at least partial heat that the battery module produced to the lateral wall, improve the radiating effect of battery module, reduce the temperature of battery module, and then improve the security and the life of battery module use, and conduct the at least partial heat of diapire to the lateral wall, prevent that the high temperature of diapire from leading to local overheat, improve user's the sense of holding.

Referring to fig. 14, fig. 14 is a schematic top view of a second embodiment of the middle frame assembly 30 in fig. 1, the middle frame assembly 30 in this embodiment further includes a card holder bracket 35 and a second heat pipe 36, and the second heat pipe 36 is respectively connected to the bottom wall 311 and the card holder bracket 35 in a heat conduction manner, so as to conduct at least part of the heat generated by the bottom wall 311 of the battery module 20 to the card holder bracket 35.

The card holder bracket 35 is used for holding a SIM card holder, and as can be understood, the SIM card does not generate heat or generates less heat during operation, so that the temperature of the card holder bracket 35 is lower, when the battery module 20 generates more heat, the second heat pipe 36 conducts at least part of the heat generated by the bottom wall 311 of the battery module 20 to the card holder bracket 35, thereby preventing the temperatures of the bottom wall 311 and the side wall 312 from being higher, and further improving the heat dissipation efficiency of the battery module 20.

The heat conduction principle of the second heat pipe 36 is the same as that of the first heat pipe 32, and will not be described herein.

The center subassembly that this embodiment provided further includes that the card holds in the palm support and second heat pipe, and the second heat pipe holds in the palm the support heat conduction with diapire and card respectively and is connected to hold in the palm the support with the battery module produces at least partial heat conduction of diapire to the card and hold in the palm the support and prevent that the temperature of diapire and lateral wall is higher, and further improve the radiating efficiency of battery module.

Referring to fig. 1 and 4, the electronic device 10 of the present embodiment further includes a display screen assembly 40, and the display screen assembly 40 is disposed on a side of the bottom wall 311 away from the battery compartment 301.

It can be understood that the display screen assembly 40 is supported on the bottom wall 311, and when the display screen assembly 40 works, at least a part of generated heat is also transferred to the bottom wall 311, so that the first heat pipe 32 in this embodiment is further used for transferring at least a part of heat generated by the display screen assembly 40 on the bottom wall 311 to the side wall 312, thereby improving the heat dissipation effect of the display screen assembly 40, reducing the temperature of the display screen assembly 40, and further improving the safety and the service life of the display screen assembly 40.

The second heat dissipation member 34 is used for uniformly diffusing at least a portion of heat generated by the display panel assembly 40 to the bottom wall 311, so as to prevent the display panel assembly 40 from being damaged due to local overheating.

The above description is only a part of the embodiments of the present application, and not intended to limit the scope of the present application, and all equivalent devices or equivalent processes performed by the content of the present application and the attached drawings, or directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims

1. A center frame assembly, comprising:

the middle frame comprises a bottom wall and a side wall, and the bottom wall is connected with the side wall to form a battery compartment for accommodating a battery module;

the first heat pipe is respectively in heat conduction connection with the bottom wall and the side wall so as to conduct at least part of heat generated by the bottom wall of the battery module to the side wall; the first heat pipe comprises a first sub heat pipe and a second sub heat pipe, the evaporation end of the first sub heat pipe is arranged on the bottom wall, the condensation end of the first sub heat pipe is arranged on the side wall, the evaporation end of the second sub heat pipe is arranged between the evaporation end and the condensation end of the first sub heat pipe and is connected with the first sub heat pipe, and the condensation end of the second sub heat pipe is arranged on the side wall.

2. The center frame assembly of claim 1, wherein the bottom wall is provided with a groove extending from the bottom wall to the side wall, the first heat pipe being disposed within the groove.

3. The middle frame assembly according to claim 1, wherein the battery module includes a battery and a battery protection plate, and the first heat pipe is configured to conduct at least a portion of heat generated from the bottom wall of at least one of the battery and the battery protection plate to the side wall.

4. The middle frame assembly according to claim 3, wherein said first heat pipe is provided on said bottom wall at a position corresponding to at least one of said battery and said battery protection plate.

5. The middle frame assembly according to claim 1, wherein at least one of said evaporating end and said condensing end has a cross-sectional area that gradually increases in a direction toward an end surface of at least one of said evaporating end and said condensing end.

6. The middle frame assembly according to claim 1, further comprising a card holder bracket and a second heat pipe, wherein the second heat pipe is in heat conduction connection with the bottom wall and the card holder bracket, respectively, so as to conduct at least part of heat generated by the battery module from the bottom wall to the card holder bracket.

7. The middle frame assembly according to claim 1, wherein a first heat dissipation member is disposed on a side of the bottom wall close to the battery compartment, and the first heat dissipation member is used for uniformly diffusing at least part of heat generated by the battery module to the bottom wall.

8. The middle frame assembly according to claim 1, wherein a side of the bottom wall remote from the battery compartment is provided with a second heat dissipation member.

9. The electronic equipment is characterized by comprising a battery module and a middle frame assembly, wherein the middle frame assembly comprises:

the middle frame comprises a bottom wall and a side wall, and the bottom wall is connected with the side wall to form a battery compartment for accommodating the battery module;

10. The electronic device of claim 9, further comprising a display screen assembly disposed on a side of the bottom wall away from the battery compartment, wherein the first heat pipe is further configured to conduct at least a portion of heat generated by the display screen assembly from the bottom wall to the side wall.