CN220067499U - Heat conduction structure of mobile phone - Google Patents

Abstract

The utility model relates to the technical field of smart phones, and specifically relates to a thermal conductive structure of a mobile phone, which includes a mobile phone body. A shell thermally conductive silicone sheet is fixedly installed inside the mobile phone body, and a PCB circuit board is fixedly installed inside the shell thermally conductive silicone sheet. A lithium battery is fixedly installed inside the thermally conductive silica gel sheet of the casing and on the top of the PCB circuit board. A mobile phone back frame is fixedly installed on the back of the mobile phone body. A battery thermally conductive silica gel sheet is fixedly installed between the mobile phone back frame and the lithium battery. A heat dissipation mechanism is fixedly installed on the back of the mobile phone back frame; the heat dissipation mechanism includes a thermal conductive seat, which is fixedly installed on the back of the mobile phone back frame and is located at a position corresponding to the lithium battery. The inside of the mobile phone back frame And there are several heat dissipation holes located on the inner side of the heat conduction base. Compared with existing mobile phones, the utility model improves the overall practicality of the mobile phone through design.

Description

Mobile phone thermal conductive structure

Technical field

The utility model relates to the technical field of smart phones, and specifically to the thermal conductive structure of mobile phones.

Background technique

With the advancement of science and technology, mobile phone technology has also made rapid progress. Today's smart phones are increasingly powerful. Behind the powerful functions is the high-frequency work of the electronic components in the mobile phone. In this process, the heat energy generated by the electronic components of the mobile phone is Very large, and in order to pursue aesthetics, the thickness of the body of today's mobile phones has also become smaller, which will cause the mobile phone to become obviously hot after being used for a long time, thus affecting the normal use of the mobile phone; The phenomenon of heating after long-term use is due to the fact that the heat energy inside the mobile phone cannot be quickly transferred to the outside world, resulting in excessive accumulation of heat energy inside the mobile phone. Excessive accumulation of heat energy in the mobile phone will also have a certain impact on the components inside the mobile phone. It may cause some mobile phone components to fail to work properly or even be permanently damaged;

Therefore, for the improvement of existing mobile phones, it is particularly important to design a new type of mobile phone to change the above technical defects and improve the practicality of the overall mobile phone.

Utility model content

The purpose of this utility model is to provide a thermal conductive structure for a mobile phone to solve the problems raised in the above background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The thermal conductive structure of a mobile phone includes a mobile phone body. A thermally conductive silica gel sheet is fixedly installed inside the main body of the mobile phone. A PCB circuit board is fixedly installed inside the thermally conductive silica gel sheet. The thermally conductive silica gel sheet is located inside the casing and on the PCB circuit board. A lithium battery is fixedly installed on the top of the mobile phone body, a mobile phone back frame is fixedly installed on the back of the mobile phone main body, a battery thermal conductive silicone sheet is fixedly installed between the mobile phone back frame and the lithium battery, and a heat dissipation device is fixedly installed on the back of the mobile phone back frame. mechanism;

The heat dissipation mechanism includes a heat conduction seat, which is fixedly installed on the back of the back frame of the mobile phone and is located at a position corresponding to the lithium battery. A number of heat dissipation holes are provided inside the back frame of the mobile phone and on the inside of the heat conduction seat. A built-in heat conductive sheet is fixedly installed on the back side of the mobile phone back frame and located at positions corresponding to several heat dissipation holes. A heat dissipation shell is fixedly installed on the back side of the mobile phone back frame and located outside the heat conduction seat.

As a preferred solution of the present invention, a limit slot is provided inside the heat dissipation shell, and an external heat conductive sheet is fixedly installed inside the limit slot. The connection between the external heat conductor sheet and the heat dissipation shell is a fixed connection. The external thermal conductive sheet is made of aluminum alloy.

As a preferred solution of the present invention, the size of the internal structure of the heat dissipation shell is set corresponding to the size of the external structure of the heat conduction base. The heat dissipation shell is made of aluminum alloy, and the corners on the outside of the heat dissipation shell are evenly spaced. Do the rounding process.

As a preferred solution of the present invention, the size of the internal structure of the heat-conducting seat is corresponding to the size of the external structure of the built-in heat-conducting sheet, and the built-in heat-conducting sheet is made of copper-aluminum alloy.

As a preferred solution of the present invention, one side of the battery thermally conductive silicone sheet is close to the back of the lithium battery, and the other side of the battery thermally conductive silicone sheet is close to the front of the back frame of the mobile phone and is located at several heat dissipation holes. at.

As a preferred solution of the present invention, a plurality of heat dissipation grooves are provided on the left and right sides of the main body of the mobile phone, and the plurality of heat dissipation grooves penetrate the main body of the mobile phone and the thermally conductive silicone sheet of the casing and extend to the inside of the thermally conductive silica gel sheet of the casing.

Compared with the existing technology, the beneficial effects of this utility model are:

In this utility model, through the design of the mobile phone back frame, battery thermal conductive silicone sheet and heat dissipation mechanism, the structure is simple and the design is reasonable; the heat dissipation mechanism is centrally arranged on the back shell of the mobile phone; the external heat conduction sheet and the built-in heat conduction sheet can increase the heat dissipation rate , at the same time, the heat dissipation shell can prevent external dust and liquid from entering the mobile phone, protect the internal components, and can quickly conduct the heat inside the mobile phone, increase the operating speed of the mobile phone, extend the service life, and improve safety.

Description of the drawings

Figure 1 is a schematic diagram of the overall three-dimensional structure of the utility model;

Figure 2 is an exploded view of the overall three-dimensional structure of the utility model;

Figure 3 is a schematic diagram of the three-dimensional structure of the heat dissipation mechanism of the present utility model.

In the picture: 1. Main body of the mobile phone; 101. Heat dissipation slot; 2. Thermal conductive silicone sheet of the casing; 3. PCB circuit board; 4. Lithium battery; 5. Mobile phone back frame; 6. Thermal conductive silicone sheet of the battery; 7. Heat dissipation mechanism; 701 , Thermal conductive seat; 702, heat dissipation hole; 703, built-in thermal conductive sheet; 704, heat dissipation shell; 705, limit slot; 706, external thermal conductive sheet.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on this The embodiments in the utility model and all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the utility model.

Example:

In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a thermal conductive structure for a mobile phone. The mobile phone aims to solve the problem that the thermal energy inside the mobile phone cannot be quickly transferred to the outside world under the existing technology, resulting in excessive accumulation of thermal energy inside the mobile phone and the heat energy in the mobile phone. Excessive accumulation in the mobile phone will also have a certain impact on the components inside the mobile phone, causing technical problems such that some mobile phone components cannot work properly or even suffer permanent damage.

Please refer to Figures 1-3. This utility model provides a technical solution:

The thermal conductive structure of a mobile phone includes a mobile phone body 1, a thermally conductive silica gel sheet 2 is fixedly installed inside the main body 1, a PCB circuit board 3 is fixedly installed inside the thermal silica gel casing 2, and a thermally conductive silica gel sheet 2 is located inside the casing and on the PCB circuit board A lithium battery 4 is fixedly installed on the top of 3, a mobile phone back frame 5 is fixedly installed on the back of the mobile phone body 1, a battery thermal conductive silicone sheet 6 is fixedly installed between the mobile phone back frame 5 and the lithium battery 4, and the back of the mobile phone back frame 5 is fixedly installed. There is a heat dissipation mechanism 7;

Further, first install the thermally conductive silicone sheet 2 of the housing inside the mobile phone body 1, install the PCB circuit board 3 inside the thermally conductive silicone sheet 2 of the housing, and then install the lithium battery 4 inside the mobile phone body 1 and on the PCB circuit board. 3, attach the battery thermally conductive silicone sheet 6 to the inside of the mobile phone back frame 5 and at a position corresponding to the heat dissipation mechanism 7. After installing the mobile phone back frame 5 on the back of the mobile phone body 1, the battery thermally conductive silicone sheet 6 It is stuck with the lithium battery 4. When in use, the heat emitted by the PCB circuit board 3 is conducted to the corners of the mobile phone body 1 through the thermally conductive silicone sheet 2 of the casing. Several heat dissipation slots 101 are provided on the left and right sides of the mobile phone body 1. , several heat dissipation slots 101 all penetrate the main body of the mobile phone 1 and the thermally conductive silica gel sheet 2 of the casing and extend to the inside of the thermally conductive silica gel sheet 2 of the casing, and are discharged from the main body of the mobile phone 1 through the several heat dissipation slots 101. The heat emitted by the lithium battery 4 passes through the thermally conductive silica gel of the battery. The sheet 6 is conducted to the heat dissipation mechanism 7, and is discharged from the main body 1 of the mobile phone through the heat dissipation mechanism 7, which can quickly conduct the heat inside the mobile phone, improve the operating speed of the mobile phone, extend the service life, and improve safety. At the same time, the shell thermally conductive silicone sheet 2 and the battery The thermally conductive silicone sheet 6 can prevent external dust and liquid from entering the mobile phone, and can also play a certain shock-absorbing and buffering role on the PCB circuit board 3 and lithium battery 4 to protect the internal components of the mobile phone.

Among them, please refer to Figures 1-3. The specific structure of the heat dissipation mechanism 7 is as follows:

The heat dissipation mechanism 7 includes a heat conduction base 701. The heat conduction base 701 is fixedly installed on the back of the mobile phone back frame 5 and is located at a position corresponding to the lithium battery 4. A number of heat dissipation holes are provided inside the mobile phone back frame 5 and on the inside of the heat conduction base 701. 702. A built-in heat conductive sheet 703 is fixedly installed on the back of the mobile phone back frame 5 and located at positions corresponding to several heat dissipation holes 702. A heat dissipation shell 704 is fixedly installed on the back of the mobile phone back frame 5 and located outside the heat conduction base 701. The heat dissipation shell A limiting groove 705 is provided inside 704, and an external heat conductive sheet 706 is fixedly installed inside the limiting groove 705.

Furthermore, the heat dissipation mechanism 7 plays a role in dissipating heat to the mobile phone main body 1. When using the mobile phone main body 1, first install the external heat conductive sheet 706 in the limiting groove 705 in the heat dissipation housing 704. The lithium in the mobile phone main body 1 The battery 4 is the main source of heat. The battery thermal conductive silicone sheet 6 conducts the heat emitted by the lithium battery 4 to the back frame 5 of the mobile phone. One side of the battery thermal conductive silicone sheet 6 is close to the back of the lithium battery 4. The battery thermal conductive silicone sheet 6 The other side is close to the front of the mobile phone back frame 5 and is located at the position of several heat dissipation holes 702, and conducts heat to the heat conduction base 701 through the heat dissipation holes 702 on the mobile phone back frame 5. The internal structure size of the heat dissipation shell 704 The size of the external structure of the heat conduction base 701 is set correspondingly. The heat dissipation shell 704 is made of aluminum alloy. The outer corners of the heat dissipation shell 704 are rounded. The internal structure size of the heat conduction base 701 is consistent with that of the built-in heat conduction sheet 703. The size of the external structure is set accordingly. The built-in thermal conductor 703 is made of copper-aluminum alloy. The heat is conducted to the heat dissipation shell 704 through the built-in thermal conductor 703. The connection between the external heat conductor 706 and the heat dissipation shell 704 is fixed. Connection, the external heat conductor 706 is made of aluminum alloy, and heat is dissipated through the heat dissipation shell 704 and the external heat conductor 706.

The workflow of the utility model: when using a mobile phone, first install the thermally conductive silica gel sheet 2 on the outer casing inside the main body of the mobile phone 1, install the PCB circuit board 3 on the inside of the thermally conductive silica gel sheet on the casing 2, and then install the lithium battery 4 on the main body of the mobile phone. 1 and located on the back of the PCB circuit board 3, attach the battery thermal conductive silicone sheet 6 to the inside of the mobile phone back frame 5 and at a position corresponding to the heat dissipation mechanism 7, and install the mobile phone back frame 5 on the mobile phone body 1 On the back, the battery thermally conductive silicone sheet 6 is engaged with the lithium battery 4. When in use, the heat emitted by the PCB circuit board 3 is conducted to the corners of the mobile phone body 1 through the thermally conductive silicone sheet 2 of the shell, and passes through several heat dissipation slots 101 After discharging the main body of the mobile phone 1, the heat emitted by the lithium battery 4 is conducted to the heat dissipation mechanism 7 through the battery thermal conductive silicone sheet 6. After being discharged from the main body 1 of the mobile phone through the heat dissipation mechanism 7, the heat inside the mobile phone can be quickly conducted, thereby increasing the operating speed of the mobile phone and extending the time service life and improve safety. At the same time, the thermally conductive silica gel sheet 2 of the shell and the thermally conductive silica gel sheet 6 of the battery can prevent external dust and liquid from entering the mobile phone. They can also play a certain shock-absorbing and buffering role on the PCB circuit board 3 and lithium battery 4 to protect the mobile phone. Compared with existing mobile phones, the utility model improves the overall practicality of the mobile phone through design.

The above embodiments are the preferred implementation solutions of the present utility model. In addition, the present utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of the technical solution are within the protection scope of the present utility model. Inside.

Claims (6)

1. Thermal conductive structure of a mobile phone, including a main body of a mobile phone (1), characterized in that: a thermally conductive silica gel sheet (2) is fixedly installed inside the main body of the mobile phone (1), and a thermally conductive silica gel sheet (2) is fixedly installed inside the casing. There is a PCB circuit board (3), a lithium battery (4) is fixedly installed inside the thermally conductive silicone sheet (2) of the housing and on the top of the PCB circuit board (3), and a lithium battery (4) is fixedly installed on the back of the mobile phone body (1). The mobile phone back frame (5) has a battery thermal conductive silicone sheet (6) fixedly installed between the mobile phone back frame (5) and the lithium battery (4). A heat dissipation mechanism (6) is fixedly installed on the back of the mobile phone back frame (5). 7); The heat dissipation mechanism (7) includes a thermal conductive seat (701), which is fixedly installed on the back of the mobile phone back frame (5) and is located at a position corresponding to the lithium battery (4). The mobile phone back frame (5) There are several heat dissipation holes (702) inside the heat conduction base (701). The back side of the mobile phone back frame (5) is fixedly installed at the corresponding positions of the several heat dissipation holes (702). There is a built-in thermal conductive sheet (703), and a heat dissipation shell (704) is fixedly installed on the back of the mobile phone back frame (5) and outside the thermal conductive base (701). 2. The thermal conductive structure of a mobile phone according to claim 1, characterized in that: a limiting groove (705) is provided inside the heat dissipation casing (704), and an external heat conduction device is fixedly installed inside the limiting groove (705). The external thermal conductive sheet (706) is fixedly connected to the heat dissipation shell (704), and the external thermal conductive sheet (706) is made of aluminum alloy. 3. The thermal conductive structure of a mobile phone according to claim 1, characterized in that: the internal structural size of the heat dissipation shell (704) and the external structural size of the thermal conductive base (701) are arranged correspondingly, and the heat dissipation shell (704) It is made of aluminum alloy material, and the outer corners of the heat dissipation housing (704) are rounded. 4. The thermal conductive structure of a mobile phone according to claim 1, characterized in that: the internal structural size of the thermal conductive base (701) is arranged corresponding to the external structural size of the built-in thermal conductive sheet (703), and the built-in thermal conductive sheet (703) 703) is made of copper and aluminum alloy. 5. The thermal conductive structure of a mobile phone according to claim 1, characterized in that: one side of the battery thermally conductive silicone sheet (6) is close to the back of the lithium battery (4), and the battery thermally conductive silicone sheet (6) is The other side is close to the front of the mobile phone back frame (5) and is located at the location of several heat dissipation holes (702). 6. The thermal conductive structure of a mobile phone according to claim 1, characterized in that: a plurality of heat dissipation slots (101) are provided on both left and right sides of the mobile phone body (1), and the plurality of heat dissipation slots (101) are all penetrated. The main body of the mobile phone (1) and the thermally conductive silicone sheet of the housing (2) extend to the inside of the thermally conductive silicone sheet of the housing (2).