Multifunctional mobile phone shell

Abstract

The invention relates to the technical field of mobile phone accessories, in particular to a multifunctional mobile phone shell which comprises a mobile phone shell body, a cavity is formed in the mobile phone shell body, and a PCB, an induction coil assembly and a battery are arranged in the cavity of the mobile phone shell body. The battery is electrically connected with the induction coil assembly through the PCB, and the battery is wirelessly charged based on the induction coil assembly; the PCB comprises a control module, a simultaneous interpretation module and a Bluetooth module, the simultaneous interpretation module is enabled to complete Bluetooth connection with an external terminal through the Bluetooth module based on control opening of the control module, and the simultaneous interpretation module can perform multilingual recognition conversion through languages input by the external terminal; and the mobile phone shell body is provided with a heat dissipation device at the accommodating groove. The system has the advantages of self-charging, translation by Bluetooth connection with the external terminal, heat dissipation and the like.

Description

Technical Field

[0001] This application relates to the technical field of mobile phone accessories. More specifically, it relates to a multifunctional mobile phone case. Background Art

[0002] Mobile phone cases are one of the important accessories for mobile phone protection. Due to the diversification of existing mobile phone case styles, they can not only provide protection for mobile phones but also have appearance recognition and aesthetics, thus being highly favored by the market.

[0003] However, long-term protection by mobile phone cases, combined with other external factors such as high-performance use of mobile phones, environmental impacts, and heat conduction from the palm, can cause the mobile phone to overheat abnormally. Especially when additional functions are integrated into the mobile phone case, heat accumulation can lead to device throttling, lag, and even hardware damage. If the mobile phone continues to overheat abnormally, it will cause the mobile phone to operate abnormally and even damage the core components of the mobile phone, making the mobile phone unable to be used normally.

[0004] Therefore, there is an urgent need for a mobile phone case that can protect the mobile phone and can timely cool down the mobile phone and the mobile phone case itself synchronously. Summary of the Invention

[0005] Aiming at the deficiencies of the above-mentioned prior art, the purpose of this application is to provide a multifunctional mobile phone case, which has the advantages of integrated functions such as self-charging, Bluetooth connection with an external terminal to complete translation, and heat dissipation.

[0006] The above technical purpose of this application is achieved through the following technical solutions: A multifunctional mobile phone case includes a mobile phone case body. One side of the mobile phone case body is provided with a receiving groove for accommodating the mobile phone. The mobile phone case body is provided with a protective frame around the circumference of the receiving groove. A cavity is provided inside the mobile phone case body. A PCB circuit board, an induction coil assembly, and a battery are arranged inside the mobile phone case body in the cavity. The battery is electrically connected to the induction coil assembly through the PCB circuit board for wireless charging based on the induction coil assembly;

[0007] The PCB circuit board includes a control module, a simultaneous translation module, and a Bluetooth module. Based on the control of the control module, the simultaneous translation module completes Bluetooth connection with an external terminal through the Bluetooth module. The simultaneous translation module can perform multi-language recognition and conversion on the language input by the external terminal;

[0008] The mobile phone case body is provided with a heat dissipation device at the receiving groove, and the heat dissipation device is used to dissipate the heat in the inner cavity of the mobile phone case body and the heat of the mobile phone respectively.

[0009] Preferably, at the accommodating groove, the heat dissipation device is sequentially provided with an inner heat conduction layer, an intermediate heat insulation layer, and an outer heat dissipation layer from the inner side of the inner mobile phone case body to the back of the mobile phone case body. The intermediate heat insulation layer separates the inner heat conduction layer and the outer heat dissipation layer to prevent heat conduction between the inner heat conduction layer and the outer heat dissipation layer.

[0010] Preferably, the cavity is formed between the intermediate heat insulation layer and the outer heat dissipation layer.

[0011] Preferably, a heat dissipation mechanism is provided between the inner heat conduction layer and the intermediate heat insulation layer, and the heat dissipation mechanism can quickly dissipate the heat absorbed by the inner heat conduction layer.

[0012] Preferably, the heat dissipation mechanism includes a first airbag disposed on the back of the mobile phone case body. The first airbag penetrates through the outer heat dissipation layer and the intermediate heat insulation layer and forms a first sealed cavity with the inner heat conduction layer. A plurality of first pipes are buried between the inner heat conduction layer and the intermediate heat insulation layer. One ends of the plurality of first pipes are communicated with the first sealed cavity, and the other ends of the plurality of first pipes are communicated with the outside air. By pressing the first airbag, an air flow is generated in the first pipes to accelerate the heat dissipation of the inner heat conduction layer.

[0013] Preferably, the heat dissipation mechanism includes a second airbag disposed on the back of the mobile phone case body. The second airbag penetrates through the outer heat dissipation layer and forms a second sealed cavity with the intermediate heat insulation layer. A plurality of second pipes are buried between the outer heat dissipation layer and the intermediate heat insulation layer. One ends of the plurality of second pipes are communicated with the second sealed cavity, and the other ends of the plurality of second pipes are communicated with the outside air. By pressing the second airbag, an air flow is generated in the second pipes to accelerate the diffusion of the heat accumulated in the outer heat dissipation layer.

[0014] Preferably, the first pipes are metal pipes, and the metal pipes are laid along the direction close to the protection frame.

[0015] Preferably, the inner heat conduction layer is a graphite heat conduction sheet with a thickness range of 0.1 mm - 2 mm.

[0016] Preferably, the intermediate heat insulation layer is a polycarbonate matrix composite graphene reinforced polymer.

[0017] Preferably, the PCB circuit board further includes a fingerprint module. The fingerprint module is electrically connected to the control module. When the control module receives the first signal output by the fingerprint module, it controls the Bluetooth module to turn on. When the control module receives the second signal output by the fingerprint module, it controls the Bluetooth module to turn off.

[0018] In summary, the beneficial effects of the present application are:

[0019] 1. Place the mobile phone in the accommodation groove, and physically wrap and protect the mobile phone through the restrictions of the accommodation groove and the protective frame. Due to the long-term use of the mobile phone and the influence of other factors, the mobile phone generates heat, and due to the fitting of the mobile phone case, the heat accumulation on the back of the mobile phone is further aggravated. Therefore, the heat dissipation device is used to dissipate the heat on the back of the mobile phone, thereby avoiding excessive heat of the mobile phone and effectively improving the service life of the mobile phone.

[0020] 2. Since the mobile phone case body is provided with a PCB circuit board, an induction coil assembly and a battery in the cavity, based on the setting of the induction coil assembly, wireless charging is used to charge and store energy in the battery. During this process, due to the electromagnetic conversion process of the induction coil assembly, the induction coil assembly and the battery continuously generate heat. And the PCB circuit board includes a control module, a simultaneous translation module and a Bluetooth module. When it is turned on through the control of the control module, the simultaneous translation module completes Bluetooth connection with an external terminal through the Bluetooth module. The simultaneous translation module can perform multi-language recognition and conversion on the language input by the external terminal. This process will also cause the PCB circuit board to generate heat. At the same time, the process of battery energy storage consumption further causes the battery to generate heat. Therefore, the heat dissipation device is used to dissipate the heat in the inner cavity of the mobile phone case body and the heat of the mobile phone respectively, avoiding the cross-influence of the heat between the two, and at the same time improving the efficiency of heat dissipation. Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of the mobile phone case body of Embodiment 1 of the present application;

[0022] Figure 2 is a schematic structural diagram of the inner cavity of Embodiment 1 of the present application;

[0023] Figure 3 is a schematic circuit connection diagram of the inner cavity of Embodiment 1 of the present application;

[0024] Figure 4 is a display diagram of the APP software interface of Embodiment 1 of the present application;

[0025] Figure 5 is a schematic structural diagram of the inner cavity of Embodiment 2 of the present application;

[0026] Figure 6 is a sectional view of the mobile phone case body of Embodiment 2 of the present application.

[0027] Reference Numerals: 1, mobile phone case body; 11, accommodation groove; 12, protective frame; 13, PCB circuit board; 14, induction coil assembly; 15, battery; 2, control module; 21, simultaneous translation module; 22, Bluetooth module; 23, fingerprint module; 3, inner heat conduction layer; 31, intermediate heat insulation layer; 32, outer heat dissipation layer; 4, first airbag; 41, first pipeline; 5, second airbag; 51, second pipeline. Detailed Embodiment

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0029] It should be noted that when a component is referred to as "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to the other component.

[0030] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0031] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.

[0032] Embodiment 1: A multifunctional mobile phone case, see Figures 1 - 4 , including a mobile phone case body 1, one side of the mobile phone case body 1 is provided with an accommodation groove 11 for accommodating a mobile phone, the mobile phone case body 1 is circumferentially surrounded by a protective frame 12 along the accommodation groove 11, a cavity is provided inside the mobile phone case body 1, a PCB circuit board 13, an induction coil assembly 14 and a battery 15 are arranged in the cavity of the mobile phone case body 1, the battery 15 is electrically connected to the induction coil assembly 14 through the PCB circuit board 13, and wireless charging is carried out on the battery 15 based on the induction coil assembly 14;

[0033] The PCB circuit board 13 includes a control module 2, a simultaneous interpretation module 21, and a Bluetooth module 22. Based on the control of the control module 2, the simultaneous interpretation module 21 completes a Bluetooth connection with an external terminal through the Bluetooth module 22. The simultaneous interpretation module 21 can perform multi-language recognition and conversion on the language input by the external terminal.

[0034] The mobile phone case body 1 is provided with a heat dissipation device at the accommodation groove 11. The heat dissipation device is used to dissipate the heat in the inner cavity of the mobile phone case body 1 and the heat of the mobile phone respectively.

[0035] In this embodiment, by placing the mobile phone in the accommodation groove 11, the mobile phone is physically wrapped and protected by the restriction of the accommodation groove 11 and the protection frame 12. Due to the long-term use of the mobile phone and the influence of other factors, the mobile phone generates heat, and due to the fitting of the mobile phone case, the heat accumulation on the back of the mobile phone is further aggravated. Therefore, the heat dissipation device is used to diffuse the heat on the back of the mobile phone, thereby avoiding the overheating of the mobile phone and effectively improving the service life of the mobile phone.

[0036] See Figure 3 , since the mobile phone case body 1 is provided with a PCB circuit board 13, an induction coil assembly 14, and a battery 15 in the cavity, based on the setting of the induction coil assembly 14, wireless charging is used to charge and store energy in the battery 15. During this process, due to the electromagnetic conversion process of the induction coil assembly 14, the induction coil assembly 14 and the battery 15 continuously generate heat. And the PCB circuit board 13 includes a control module 2, a simultaneous interpretation module 21, and a Bluetooth module 22. When the control is enabled through the control module 2, the simultaneous interpretation module 21 completes a Bluetooth connection with an external terminal through the Bluetooth module 22. The simultaneous interpretation module 21 can perform multi-language recognition and conversion on the language input by the external terminal. This process will also cause the PCB circuit board 13 to generate heat. At the same time, the process of energy storage consumption of the battery 15 further causes the battery 15 to generate heat. Therefore, the heat dissipation device is used to dissipate the heat in the inner cavity of the mobile phone case body 1 and the heat of the mobile phone respectively, to avoid the cross-influence of the heat between the two, and at the same time improve the efficiency of heat diffusion. The external terminal in this embodiment is a mobile phone.

[0037] See Figure 4 , after the Bluetooth module 22 completes a Bluetooth connection with an external terminal, an APP software will be installed in the mobile phone accordingly. By opening the APP software application installed on the mobile phone, clicking to receive the language and the corresponding translated language for translation, there are currently more than 100 languages available for selection. The simultaneous interpretation module 21 relies on the mobile phone hardware to input the external language, transmits it to the simultaneous interpretation module 21 through the Bluetooth module 22, and the simultaneous interpretation module 21 translates the corresponding language based on the language input by the mobile phone hardware, and displays the translated text on the APP software application.

[0038] See Figure 2 Specifically, at the accommodating groove 11, the heat dissipation device is provided with an inner heat conduction layer 3, an intermediate heat insulation layer 31, and an outer heat dissipation layer 32 in sequence from the inner side of the mobile phone case body 1 to the back of the mobile phone case body 1. The intermediate heat insulation layer 31 separates the inner heat conduction layer 3 and the outer heat dissipation layer 32 to prevent heat conduction between the inner heat conduction layer 3 and the outer heat dissipation layer 32.

[0039] The structure of the mobile phone case body 1 in this embodiment is at least three layers, including an inner heat conduction layer 3, an intermediate heat insulation layer 31, and an outer heat dissipation layer 32 in sequence. The intermediate heat insulation layer 31 separates the inner heat conduction layer 3 and the outer heat dissipation layer 32. When the inner heat conduction layer 3 conducts the heat generated by the mobile phone and the outer heat dissipation layer 32 conducts the heat in the cavity, the two are independent of each other, preventing heat conduction between the inside and outside.

[0040] Since the PCB circuit board 13, the induction coil assembly 14, and the battery 15 require sufficient installation space during installation, a cavity is opened between the intermediate heat insulation layer 31 and the outer heat dissipation layer 32 for easy installation.

[0041] In addition to conducting heat through the inner heat conduction layer 3, the mobile phone case body 1 also needs to wrap and protect the mobile phone. Therefore, during the use of the mobile phone case, since the inner heat conduction layer 3 is completely covered by the back of the mobile phone and covered by the intermediate heat insulation layer 31, the heat on the inner heat conduction layer 3 cannot be dissipated in time. Therefore, a heat dissipation mechanism is provided between the inner heat conduction layer 3 and the intermediate heat insulation layer 31, and the heat dissipation mechanism can quickly dissipate the heat absorbed by the inner heat conduction layer 3.

[0042] The heat dissipation mechanism includes a first airbag 4 provided on the back of the mobile phone case body 1. The first airbag 4 penetrates through the outer heat dissipation layer 32 and the intermediate heat insulation layer 31 and forms a first sealed cavity with the inner heat conduction layer 3. A plurality of first pipes 41 are buried between the inner heat conduction layer 3 and the intermediate heat insulation layer 31. One ends of the plurality of first pipes 41 are communicated with the first sealed cavity, and the other ends of the plurality of first pipes 41 are communicated with the outside air. By pressing the first airbag 4, air flow is generated in the first pipes 41 to accelerate the heat dissipation of the inner heat conduction layer 3.

[0043] The first airbag 4 is made of elastic rubber. By pressing the first airbag 4, air flow occurs in the first pipes 41. Since the first pipes 41 are in contact with the inner heat conduction layer 3, when the air flow occurs, the heat on the inner heat conduction layer 3 is dissipated. At the same time, when pressing the first airbag 4, it can also be pressed and relaxed when bored, improving the fun of the mobile phone case.

[0044] Wherein the first pipe 41 is a metal pipe, and the metal pipe is arranged circumferentially around the accommodating groove 11. Heat conduction is carried out through the metal pipe. The metal pipe adopted in this embodiment is a copper pipe. The heat conduction rate of the high heat conduction copper pipe is ≥400W / m·K, and the arrangement circumferentially around the accommodating groove 11 can maximize the contact area between the first pipe 41 and the inner heat conduction layer 3, further promoting the heat exchange conduction between the two.

[0045] In this embodiment, the inner heat conduction module adopts a graphite heat conduction sheet with a thickness of 0.1-2mm and a heat conduction rate of ≥38W / m·K, which can quickly absorb heat to the first pipe 41.

[0046] The middle heat insulation layer 31: includes a polycarbonate matrix composite graphene reinforced polymer.

[0047] The outer heat dissipation layer 32: is made of a high emissivity coating with an emissivity ≥0.9 to enhance radiation heat dissipation.

[0048] Since the PCB circuit board 13 is placed in the cavity, which is actually inside the mobile phone case body 1. Therefore, to solve the problem of realizing the Bluetooth connection and disconnection between the Bluetooth module 22 on the PCB circuit board 13 and an external terminal, in this embodiment, a fingerprint module 23 is set. The fingerprint module 23 is electrically connected to the control module 2. When the control module 2 receives the first signal output by the fingerprint module 23, it controls the Bluetooth module 22 to turn on. When the control module 2 receives the second signal output by the fingerprint module 23, it controls the Bluetooth module 22 to turn off, thereby completing the wireless connection and disconnection between the simultaneous interpretation module 21 and the external terminal.

[0049] Wherein the fingerprint module 23 includes a fingerprint collection unit and a fingerprint recognition unit. The fingerprint collection unit is electrically connected to the fingerprint recognition unit, and the fingerprint recognition unit is electrically connected to the control module 2. The fingerprint collection unit is used to collect fingerprint information and send the fingerprint information to the fingerprint recognition unit. The fingerprint recognition unit is used to detect whether the fingerprint corresponding to the fingerprint information is a preset fingerprint. When it detects that the fingerprint corresponding to the fingerprint information is a preset fingerprint, it outputs a first signal to the control module 2. When it detects that the fingerprint corresponding to the fingerprint information is not a preset fingerprint, it outputs a second signal to the control module 2.

[0050] The preset fingerprint refers to the fingerprint that has the permission to activate the Bluetooth module 22. In other words, the preset fingerprint is the fingerprint of the user with the activation permission. The fingerprint module 23 acquires the user's fingerprint and records and saves it to obtain the activation permission. In other words, when the fingerprint module 23 detects the preset fingerprint, it can trigger the generation of a first signal. The first signal is a signal that can drive the control module 2 to activate the Bluetooth module 22, and the second signal is a signal that can drive the control module 2 to deactivate the Bluetooth module 22.

[0051] In addition, the mobile phone case in this embodiment can not only act on the mobile phone, but also act on external terminals such as small-screen computers or tablets. The induction coil assembly 14 includes an induction coil and a ferrite magnetic core, and the induction coil is fixed by the magnetic attraction of the ferrite magnetic core.

[0052] Embodiment 2: A multifunctional mobile phone case, see Figures 5 - 6 , the difference between this embodiment and Embodiment 1 is that: the heat dissipation mechanism includes a second airbag 5 arranged on the back of the mobile phone case body 1. The second airbag 5 penetrates through the outer heat dissipation layer 32 and forms a second sealed cavity with the intermediate heat insulation layer 31. A plurality of second pipes 51 are buried between the outer heat dissipation layer 32 and the intermediate heat insulation layer 31. One end of each of the plurality of second pipes 51 communicates with the second sealed cavity, and the other end of each of the plurality of second pipes 51 communicates with the outside air. By pressing the second airbag 5, air flow is generated in the second pipes 51, accelerating the diffusion of the heat accumulated in the outer heat dissipation layer 32.

[0053] Since the mobile phone case body 1 is provided with a PCB circuit board 13, an induction coil assembly 14 and a battery 15 in the cavity, based on the setting of the induction coil assembly 14, wireless charging is used to charge and store energy in the battery 15. During this process, due to the electromagnetic conversion process of the induction coil assembly 14, the induction coil assembly 14 and the battery 15 continuously generate heat. And the PCB circuit board 13 includes a control module 2, a simultaneous translation module 21 and a Bluetooth module 22. When it is activated by the control of the control module 2, the simultaneous translation module 21 completes a Bluetooth connection with an external terminal through the Bluetooth module 22. The simultaneous translation module 21 can perform multi-language recognition and conversion through the language input by the external terminal. This process will also cause the PCB circuit board 13 to generate heat. At the same time, the process of energy storage consumption of the battery 15 further causes the battery 15 to generate heat. This results in the heat in the cavity not being able to be diffused in time. Therefore, a heat dissipation mechanism is provided between the outer heat dissipation layer 32 and the intermediate heat insulation layer 31, and the heat dissipation mechanism can quickly diffuse the heat accumulated in the outer heat dissipation layer 32.

[0054] See Figure 6, a cavity is provided inside the mobile phone case body 1, and a PCB circuit board 13, an induction coil assembly 14 and a battery 15 are arranged in the cavity of the mobile phone case body 1. The battery 15 is electrically connected to the induction coil assembly 14 through the PCB circuit board 13, and wireless charging is carried out from the induction coil assembly 14 to the battery 15;

[0055] The PCB circuit board 13 includes a control module 2, a simultaneous translation module 21 and a Bluetooth module 22. Based on the control of the control module 2 being turned on, the simultaneous translation module 21 completes Bluetooth connection with an external terminal through the Bluetooth module 22. The simultaneous translation module 21 can perform multi-language recognition and conversion on the language input by the external terminal. The structure of the mobile phone case body 1 in this embodiment has at least three layers, including an inner heat conduction layer 3, a middle heat insulation layer 31 and an outer heat dissipation layer 32 in sequence. The cavity is arranged between the middle heat insulation layer 31 and the outer heat dissipation layer 32.

[0056] The rest of this embodiment is the same as that of Embodiment 1. For the features not explained in this embodiment, the explanations of Embodiment 1 are adopted and will not be elaborated here.

[0057] The above embodiments are only explanations of the present application, and they are not limitations of the present application. Those skilled in the art can make modifications without creative contributions to this embodiment according to needs after reading this specification, but as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A multifunctional mobile phone case, characterized in that: It includes a mobile phone case body. A receiving groove for accommodating a mobile phone is formed on one side of the mobile phone case body. A protective frame is circumferentially arranged around the receiving groove of the mobile phone case body. A cavity is arranged inside the mobile phone case body. A PCB circuit board, an induction coil assembly and a battery are arranged in the cavity of the mobile phone case body. The battery is electrically connected to the induction coil assembly through the PCB circuit board, and wireless charging is carried out for the battery based on the induction coil assembly. The PCB circuit board includes a control module, a simultaneous translation module and a Bluetooth module. Based on the control of the control module being turned on, the simultaneous translation module completes Bluetooth connection with an external terminal through the Bluetooth module. The simultaneous translation module can perform multi-language recognition and conversion through the language input by the external terminal. A heat dissipation device is arranged at the receiving groove of the mobile phone case body. The heat dissipation device is used for dissipating the heat in the inner cavity of the mobile phone case body and the heat of the mobile phone respectively.

2. The multifunctional mobile phone case according to claim 1, characterized in that: At the receiving groove, the heat dissipation device is sequentially provided with an inner heat conduction layer, a middle heat insulation layer and an outer heat dissipation layer from the inner side of the mobile phone case body to the back of the mobile phone case body. The middle heat insulation layer separates the inner heat conduction layer and the outer heat dissipation layer to prevent the heat between the inner heat conduction layer and the outer heat dissipation layer from conducting to each other.

3. The multifunctional mobile phone case according to claim 2, characterized in that: The cavity is formed between the middle heat insulation layer and the outer heat dissipation layer.

4. The multifunctional mobile phone case according to claim 2, characterized in that: A heat dissipation mechanism is arranged between the inner heat conduction layer and the middle heat insulation layer or between the middle heat insulation layer and the outer heat dissipation layer. The heat dissipation mechanism can quickly spread the heat absorbed by the inner heat conduction layer or the heat accumulated in the outer heat dissipation layer.

5. The multifunctional mobile phone case according to claim 4, characterized in that: The heat dissipation mechanism includes a first airbag arranged on the back of the mobile phone case body. The first airbag penetrates through the outer heat dissipation layer and the middle heat insulation layer and forms a first sealed cavity with the inner heat conduction layer. A plurality of first pipes are buried between the inner heat conduction layer and the middle heat insulation layer. One ends of the plurality of first pipes are communicated with the first sealed cavity, and the other ends of the plurality of first pipes are communicated with the outside air. By pressing the first airbag, air flow is generated in the first pipes to accelerate the heat dissipation of the inner heat conduction layer.

6. The multifunctional mobile phone case according to claim 4, characterized in that: The heat dissipation mechanism includes a second airbag arranged on the back of the mobile phone case body. The second airbag penetrates through the outer heat dissipation layer and forms a second sealed cavity with the middle heat insulation layer. A plurality of second pipes are buried between the outer heat dissipation layer and the middle heat insulation layer. One ends of the plurality of second pipes are communicated with the second sealed cavity, and the other ends of the plurality of second pipes are communicated with the outside air. By pressing the second airbag, air flow is generated in the second pipes to accelerate the diffusion of the heat accumulated in the outer heat dissipation layer.

7. The multifunctional mobile phone case according to claim 5, characterized in that: The first pipe is a metal pipe, and the metal pipe is laid along the direction close to the protective frame.

8. The multifunctional mobile phone case according to claim 2, characterized in that: The inner heat conduction layer is a graphite heat conduction sheet, and the thickness range is 0.1 mm - 2 mm.

9. The multifunctional mobile phone case according to claim 2, characterized in that: The middle heat insulation layer is a polycarbonate matrix composite graphene reinforced polymer.

10. A multifunctional mobile phone case according to claim 1, characterized in that: The PCB circuit board further includes a fingerprint module, which is electrically connected to the control module. When the control module receives the first signal output by the fingerprint module, it controls the Bluetooth module to turn on. When the control module receives the second signal output by the fingerprint module, it controls the Bluetooth module to turn off.

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