CN113871749B

CN113871749B - Electronic device

Info

Publication number: CN113871749B
Application number: CN202110960408.3A
Authority: CN
Inventors: 李养余; 王晓光; 霍国亮
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-09-27
Anticipated expiration: 2041-08-20
Also published as: CN113871749A

Abstract

The embodiment of the application provides electronic equipment, which comprises a middle frame, a battery cover and an elastic heat-insulating flame-retardant piece, wherein the battery is positioned in a battery assembly area of the middle frame; the heat-insulating flame-retardant piece comprises a first heat-insulating flame-retardant piece which is positioned between the battery and the battery cover and generates heat, and the first heat-insulating flame-retardant piece covers the battery. The electronic equipment has higher safety performance when can obstruct or slow down the ignition of the battery cover by the battery.

Description

Electronic device

Technical Field

The present application relates to the field of electronic technologies, and in particular, to an electronic device.

Background

With the development of diversification of electronic devices such as mobile phones, users have become necessities of our lives, and the users have higher requirements on the safety performance of the mobile phones, particularly the safety performance of the mobile phones in various complex application scenes such as the field, the on-duty way, the outdoor playing and the like.

Along with the continuous increase of the battery capacity of the mobile phone, the risk of battery safety of the mobile phone in various complex application scenes is greatly increased, and financial loss and personal injury are easily brought to a user. Currently, a mobile phone includes a center frame, a battery mounted on the center frame, and a plastic cover covering the battery and connected to the center frame. The surface of the plastic cover facing the battery is coated with the flame-retardant ink, so that the plastic cover can be protected, the plastic cover is delayed from being ignited when the battery is carelessly combusted, the safety performance of the mobile phone is enhanced, and property loss and personal injury brought to a user when the battery is abnormally stressed and carelessly combusted are reduced.

However, the plastic cap is easily deformed after post-heating, so that the flame retardant ink fails, and the flame retardant effect on the plastic cap is poor.

Disclosure of Invention

The application provides an electronic equipment, can obstruct or slow down the battery lid and ignite by the battery, promotes electronic equipment's security performance.

The embodiment of the application provides electronic equipment which comprises a middle frame, a battery cover and an elastic heat-insulating flame-retardant piece, wherein a battery assembly area is arranged on one surface, facing the battery cover, of the middle frame, the battery is located in the battery assembly area, and the battery cover is arranged on the battery and connected with the middle frame; the heat-insulating flame-retardant piece is of an elastic structure and comprises a first heat-insulating flame-retardant piece, and the first heat-insulating flame-retardant piece is positioned between the battery and the battery cover and covers the battery.

This application embodiment is through setting up thermal-insulated fire-retardant piece in electronic equipment, and establish the first thermal-insulated fire-retardant piece among the thermal-insulated fire-retardant piece between battery and battery cover, and cover first thermal-insulated fire-retardant piece on the battery, like this when battery trouble is overheated or the burning, can be with the heat or the intensity of a fire separation of battery on the one hand through first thermal-insulated fire-retardant piece, slow down the battery cover and scald, delay the battery to be lighted by the battery, in order to protect the battery cover, promote electronic equipment's security performance, reduce financial loss and bodily injury that battery trouble brought for the user, on the other hand can carry out effectual thermal-insulated fire-retardant protection to the battery cover through first thermal-insulated fire-retardant piece.

In an alternative embodiment, the heat-insulating flame-retardant piece is made of a flame-retardant material with a porous net structure.

Therefore, the heat insulation and flame retardant performance of the flame retardant material can be utilized, when the battery is overheated due to failure or burns, the heat or fire of the battery can be blocked, the battery cover is protected, the battery cover is delayed from being scalded or ignited by the battery, and meanwhile, the lightening and thinning of the electronic equipment can be facilitated.

In an alternative embodiment, the flame retardant material is an aerogel.

Can utilize the better fire-retardant and heat-proof quality of aerogel like this for first thermal-insulated fire-retardant piece has better fire-retardant and thermal-insulated performance, so that better protection battery cover, thereby further promote electronic equipment's security performance, when reducing financial loss and the bodily injury that battery trouble brought for the user, can also help alleviateing electronic equipment's weight.

In an alternative embodiment, the insulating and flame-retardant member is a laminate structure.

Therefore, the first heat-insulating flame-retardant piece can better cover the battery, the heat or fire of the battery can be blocked, and the safety performance of the electronic equipment can be improved.

In an alternative embodiment, the battery is located within the orthographic area of the first insulating flame retardant within the middle frame.

Can carry out the full coverability through first thermal-insulated fire-retardant piece like this to the battery, carry out better protection to the battery cover to delay the battery cover to be scalded or by the battery ignition, when promoting electronic equipment's security performance, can reduce financial loss and the bodily injury that battery trouble brought for the user as far as.

In an alternative embodiment, at least part of the edge of the first insulating flame retardant member extends toward the outside of the peripheral edge of the battery.

Therefore, the first heat-insulating flame-retardant piece can be conveniently assembled in the electronic equipment while the first heat-insulating flame-retardant piece is ensured to fully cover the battery.

In an optional embodiment, the electronic device further comprises a heat dissipation member, a surface of the middle frame facing the battery cover is provided with a heat generation region for accommodating the heat generation element, the heat generation region is located on one side of the battery assembly region, and the heat dissipation member covers the heat generation element.

Therefore, heat on the heating element can be dissipated from the electronic equipment through the heat dissipation member, so that the service lives of the heating element and the electronic equipment are prolonged.

In an alternative embodiment, the end of the heat sink extends towards the battery mounting region, and at least part of the structure of the heat sink is located between the first insulating flame retardant member and the battery cover.

Therefore, when the battery cover is delayed to be scalded or ignited by the battery through the first heat-insulating flame-retardant part, the heat of the heating element can be diffused to the battery assembly area through the heat dissipation part, so that the heat can be dissipated out through the battery cover, the heat dissipation efficiency of the heat dissipation part is improved, and the service lives of the heating element and the electronic equipment are further prolonged.

In an alternative embodiment, a first gap for accommodating the heat dissipation member is formed between one end of the first heat-insulating flame-retardant member close to the heat generation region and the battery cover.

By arranging the first gap, at least part of the structure of the heat dissipation member can be conveniently arranged between the first heat-insulation flame-retardant member and the battery cover, so that the heat of the heating element can be dissipated from the electronic equipment through the battery cover.

In an alternative embodiment, the first insulating and flame-retardant member is provided on the battery cover on the side thereof facing the battery through the heat sink.

On the basis of ensuring that the first heat-insulating flame-retardant piece covers the battery and delaying the battery cover from being scalded or ignited by the battery, on one hand, the first heat-insulating flame-retardant piece can be fixed in the electronic equipment, so that the deformation of the battery cover after being heated is reduced, and on the other hand, the heat of the absorbed heating element can be conveniently dissipated out of the electronic equipment through the battery cover by the heat dissipation piece.

In an optional embodiment, the electronic device further includes a first adhesive member, the heat dissipation member is disposed on a side of the battery cover facing the battery, and the first heat-insulating flame retardant member is adhered to the heat dissipation member and the side of the battery cover facing the battery through the first adhesive member.

Therefore, the first heat-insulation flame-retardant piece can be respectively bonded with the heat dissipation piece and the battery cover through the first bonding piece, so that the deformation of the battery cover after being heated can be reduced while the first heat-insulation flame-retardant piece is fixed in the electronic equipment.

In an alternative embodiment, one end of the first heat-insulating flame-retardant member close to the heat generating region is provided with a bent part, the bent part is bent towards the side far away from the battery cover, and a first gap is formed between the bent part and the battery cover.

Through the arrangement of the bent part, at the same time of not influencing the fixation of the first heat-insulation flame-retardant part on the battery cover, at least part of the structure of the heat dissipation part can be conveniently fixed between the first heat-insulation flame-retardant part and the battery cover.

In an alternative embodiment, the heating element includes a first heating element and a second heating element, the heating value of the first heating element is greater than the heating value of the second heating element, the heat-insulating flame-retardant piece further includes a second heat-insulating flame-retardant piece covering the first heating element, and the partial structure of the heat sink is connected with one surface of the battery cover facing the battery through the second heat-insulating flame-retardant piece.

Therefore, the heat of the first heating element can be isolated through the arrangement of the second heat-insulating flame-retardant piece while the heat of the absorbed heating element is dissipated from the electronic equipment through the battery cover by the heat dissipation piece, so that the temperature on the battery cover is uniform.

In an alternative embodiment, a second gap for accommodating the second heat-insulating flame-retardant member is formed between one end of the heat sink located in the heat-generating region and the battery cover.

Through the arrangement of the second gap, the second heat-insulation flame-retardant piece can be conveniently arranged between the heat dissipation piece and the battery cover, so that the partial structure of the heat dissipation piece is connected with one surface, facing the battery, of the battery cover through the second heat-insulation flame-retardant piece.

In an alternative embodiment, one end of the heat dissipation member located in the heat generation region is provided with a first bending section, the first bending section is bent towards the side away from the battery cover, and a second gap is formed between the first bending section and the battery cover.

Therefore, through the arrangement of the first bending section on the heat dissipation member, a second gap can be formed between the heat dissipation member and the battery cover while the heat dissipation member is ensured to be arranged on the battery cover, so that the second heat insulation flame retardant member is arranged conveniently.

In an optional implementation manner, the electronic device further includes a fixing bracket, the fixing bracket is disposed in the heating region, and the heat dissipation element and the first heat-insulating flame-retardant element are both disposed on the fixing bracket.

Therefore, the heat dissipation member and the first heat-insulation flame-retardant member can be assembled in the electronic equipment through the fixing bracket, and meanwhile, other functional modules can be conveniently arranged between the heat dissipation member and the battery cover, so that the functions of the electronic equipment can be expanded.

In an optional embodiment, the electronic device further includes a near field communication module, the near field communication module is disposed between the heat dissipation member and the battery cover, and the first heat-insulating flame-retardant member and the near field communication module are respectively located on two opposite sides of the heat dissipation member.

Therefore, the radiating element is ensured to radiate heat through the radiating piece, and the near field communication module can be arranged close to the battery cover on the basis of protecting the battery cover through the first heat-insulating flame-retardant piece, so that the function of the near field communication module is realized, and the function of the electronic equipment is more diversified.

In an alternative embodiment, a third gap is formed between the heat dissipation member and the fixing bracket, and the end of the first heat-insulating flame-retardant member is positioned in the third gap;

one end, close to the heating area, of the heat dissipation part is provided with a second bending section, the second bending section bends towards one side of the fixing support, and the near field communication module is located between the second bending section and the battery cover.

Through the setting in third clearance like this, can be convenient for first thermal-insulated fire-retardant piece fix on the fixed bolster. Meanwhile, through the arrangement of the second bending section, when the heat dissipation piece is connected with the fixing support, the gap between one end of the heat dissipation piece close to the heating area and the battery cover can be increased, so that the arrangement of the near field communication module is facilitated.

In an optional embodiment, the heat-insulating and flame-retardant heat sink further comprises a third bonding piece, and the first heat-insulating and flame-retardant piece and the heat sink are bonded with the fixing bracket through the third bonding piece.

Through the setting of third bonding piece like this, can be convenient for fix first thermal-insulated fire-retardant piece and radiating piece on the fixed bolster to realize the assembly of first thermal-insulated fire-retardant piece and radiating piece in electronic equipment.

In an alternative embodiment, the heat sink includes a heat sink body and an extension portion connected to the heat sink body, and an end of the heat sink body extends from the heat generating region to the battery mounting region to form the extension portion.

Through the arrangement of the extension part, the heat dissipation part can diffuse the absorbed heat of the heating area to the battery assembly area, so that the heat dissipation efficiency of the heat dissipation part is improved.

In an alternative embodiment, the ratio of the extension to the length of the battery mounting region in the direction along the length of the battery mounting region is equal to or less than 2/3.

Therefore, the manufacturing cost of the electronic equipment can be considered while the heat dissipation efficiency of the heat dissipation piece is improved.

In an alternative embodiment, the heat sink is a graphite sheet or a graphene sheet.

Thus, the heat dissipation effect of the heat dissipation member is ensured, and the electronic equipment can be thinned.

In an alternative embodiment, the heat generating region is disposed near the top wall of the middle frame, a first circuit board electrically connected to the battery is disposed in the heat generating region, and the first circuit board has a heat generating element thereon.

Therefore, the heat dissipation element on the first circuit board can be dissipated through the heat dissipation member, so that the heat dissipation performance of the electronic equipment is improved, and the service life of the electronic equipment is prolonged.

In an alternative embodiment, the battery cover is a plastic battery cover.

Therefore, the safety performance of the electronic equipment can be improved while the application of the fifth generation mobile communication technology to the electronic equipment is not influenced, and the financial loss and the personal injury brought to the user by the battery fault can be reduced.

Drawings

FIG. 1 is a front view of a mobile phone according to an embodiment of the present application;

FIG. 2 is a cross-sectional view of the handset of FIG. 1 taken along the line A-A;

fig. 3 is a schematic structural diagram of a heat generating area in a mobile phone according to an embodiment of the present disclosure;

fig. 4 is a perspective view of a rear view of a mobile phone according to an embodiment of the present application;

FIG. 5 is a cross-sectional view of the handset of FIG. 4 taken along the direction B-B;

FIG. 6 is a schematic structural view of an insulating and flame-retardant assembly according to an embodiment of the present disclosure;

FIG. 7 is a perspective view of another embodiment of the present application showing a rear view of a cellular phone;

FIG. 8 is a cross-sectional view of the handset of FIG. 7 taken along the direction C-C;

FIG. 9 is a perspective view of a rear view of another embodiment of a handset;

FIG. 10 is a cross-sectional view of the handset of FIG. 9 taken along the direction D-D;

FIG. 11 is a schematic structural view of another insulating and fire-retardant assembly provided in the examples of the present application.

Description of reference numerals:

100-mobile phone; 10-middle frame; 11-a frame; 12-a support plate; 121-a forward projection area; 13-a partition plate; 14-a battery mounting area; 15-a heat-generating region; 16-a fixed support; 17-a top wall; 18-a bottom wall; 20-a battery; 21-a protective plate; 30-a battery cover; 40-a display screen;

50-heat-insulating flame-retardant member; 51-a first insulating flame retardant member; 511-bending part; 52-a second insulating flame retardant; 60-a heat sink; 61-a heat dissipation body; 62-an extension; 63-a first bend section; 64-a second bend section;

70-a near field communication module; 80-a circuit board; 81-a first circuit board; 811-a heating element; 8111-a first heat generating element; 8112 — a second heating element; 82-a second circuit board; 90-a bonding member; 91-a first adhesive member; 92-a second adhesive; 93-third adhesive member.

Detailed Description

At present, electronic devices such as mobile phones have become a necessity in the daily life of users. In various complex scenes such as field work, riding, outdoor play, construction site work and the like, a user also carries the mobile phone with the mobile phone, so that the mobile phone is more likely to be subjected to abnormal force in the various complex scenes. The abnormal force includes not only a large bending force applied to the mobile phone, but also an external force applied to the mobile phone when the mobile phone touches a sharp object. When the mobile phone is subjected to abnormal force, the battery in the mobile phone may be damaged, such as puncturing the battery, and the like, which may cause a short circuit of the battery, thereby causing overheating or even burning of the battery, and causing the rear cover of the battery to be hot, even quickly (for example, 5s to 10s) igniting the battery cover of the mobile phone, scalding the user, and causing personal injury to the user, and simultaneously causing financial loss. Therefore, the user has a high requirement on the safety performance of the mobile phone, and particularly has a high requirement on the safety performance of the mobile phone in various complex application scenes.

The mobile phone may include a center frame on which the battery is mounted, a battery and a battery cover that is disposed on the battery and is connected to the center frame. In order to better satisfy more and more functions and applications of the mobile phone, the mobile phone has an increasing demand for battery capacity. When the mobile phone is subjected to abnormal force to cause short circuit of the battery, the larger the residual capacity in the battery is, the more heat is generated instantaneously by the battery, the longer the battery burns, and the more serious the burning degree is. This can cause the battery cover to burn more quickly or even instantaneously by the battery, participating in the burning of the battery. Therefore, with the continuous increase of the battery capacity of the mobile phone, the risk of battery safety of the mobile phone in various complex application scenes is greatly increased, and financial loss and personal injury are more easily brought to the user.

The battery cover may be made of glass, metal, plastic, or the like. Because glass is fragile and easy to crack during impact, broken glass slag has the risk of puncturing the battery and causing short circuit of the battery. Therefore, the battery cover of the mobile phone is mostly made of metal or plastic, and the like, so that the safety performance of the mobile phone is improved. At present, antennas of Mobile phones and the like are mostly disposed on a frame of a middle frame of the Mobile phone, and when a battery cover is made of a metal material, the battery cover made of the metal material is fastened to the middle frame, which affects performance of the antennas, so that it is difficult for the Mobile phone to implement a 5G function of the Mobile phone by matching with a fifth Generation Mobile Communication Technology (5th Generation Mobile Communication Technology, 5G). Therefore, the battery cover can be made of plastic materials to meet the higher requirements of users on mobile communication technology of the mobile phone.

In order to meet the requirement of a user on the safety performance of the mobile phone in a complex application scene, one surface of a plastic cover of the existing mobile phone facing a battery (namely the inner surface of the plastic cover) is coated with flame-retardant ink, and the flame-retardant ink and the plastic cover form an integrated structure. Therefore, the flame-retardant ink can delay the ignition of the plastic cover when the battery is burnt carelessly by abnormal force, so as to protect the plastic cover, enhance the safety performance of the mobile phone, increase the emergency treatment time for a user and reduce property loss and personal injury brought to the user.

However, the thickness of fire-retardant printing ink is thinner and toughness is relatively poor, and fire-retardant printing ink and plastic lid structure as an organic whole, because the plastic lid is easy to be out of shape after the back is hot, when the plastic lid warp, will lead to phenomenons such as crack, fault appearing between the fire-retardant printing ink, make fire-retardant printing ink inefficacy, actual flame retardant efficiency is not big, flame retardant efficiency to the plastic lid is relatively poor, it is lighted by the battery to be difficult to delay the plastic lid, protect the plastic lid, can't increase emergency treatment time for the user, shift the cell-phone to safe place, scald the user easily, property loss and bodily injury brought for the user.

In view of this, the embodiment of the application provides an electronic device, an elastic heat-insulating flame-retardant member is arranged in the electronic device, a first heat-insulating flame-retardant member in the heat-insulating flame-retardant member is arranged between a battery and a battery cover, and the first heat-insulating flame-retardant member covers the battery, so that on one hand, heat or fire of the battery can be blocked by the first heat-insulating flame-retardant member, scalding of the battery cover is slowed down, ignition of the battery cover by the battery is delayed, the battery cover is protected, the safety performance of the electronic device is improved, financial loss and personal injury brought to a user by battery failure are reduced, on the other hand, deformation of the battery cover after the battery is overheated or burnt can be slowed down, and effective heat-insulating flame-retardant protection can be performed on the battery cover.

In this embodiment, the electronic device may include, but is not limited to, an electronic device with a battery, such as a mobile phone, a tablet computer, a notebook computer, an ultra-mobile personal computer (UMPC), a handheld computer, a game machine, an intercom, a handheld terminal, a netbook, a POS machine, a Personal Digital Assistant (PDA), a wearable device, and a virtual reality device.

The electronic device according to the embodiment of the present application is further described below by taking a mobile phone as an example.

Fig. 1 is a front view of a mobile phone according to an embodiment of the present disclosure, and fig. 2 is a cross-sectional view of the mobile phone in fig. 1 along a direction a-a.

Fig. 1 and 2 show an overall view and an internal schematic view, respectively, of an electronic device such as a mobile phone. As can be seen in fig. 1 and 2, an electronic device such as a cellular phone 100 may include a center frame 10 and a display 40, the display 40 being mounted and fixed on the center frame 10. The display screen 40 may be used to display information input by or provided to the user as well as various menus of the electronic device and may also accept user input. In this embodiment, the display screen 40 may be a flat screen or a curved screen.

Referring to fig. 2, an electronic device such as a cell phone 100 may further include a battery 20 and a battery cover 30. The side of the middle frame 10 facing the battery cover 30 has a battery mounting region 14. The battery 20 is located in the battery mounting region 14, and the battery cover 30 is disposed over the battery 20 and connected to the middle frame 10. Wherein, the display screen 40 and the battery cover 30 can be arranged on two opposite sides of the middle frame 10. The battery mounting region 14 may also be understood as a battery 20 compartment on the middle frame 10. The battery 20 can thus be secured within an electronic device such as a cell phone 100 by the battery 20 compartment and the battery cover 30.

Specifically, the middle frame 10 includes a frame 11 and a support plate 12, and the frame 11 is disposed around the support plate 12 and connected to an edge of the support plate 12. Battery cover 30 may be supported and assembled on bezel 11. A partition plate 13 may be provided on a side of the support plate 12 facing the battery cover 30, and a space on a side of the middle frame 10 facing the battery cover 30 is partitioned by the partition plate 13 such that the partition plate 13 and the support plate 12 together constitute a battery mounting region 14.

In order to improve the safety performance of an electronic device such as a mobile phone 100, especially the safety performance of the mobile phone 100 in a complicated application environment, referring to fig. 2, an elastic heat-insulating and flame-retardant member 50 is further disposed in the electronic device according to the embodiment of the present application, that is, the heat-insulating and flame-retardant member 50 is an elastic structure. The heat-insulating flame-retardant member 50 may include a first heat-insulating flame-retardant member 51, and the first heat-insulating flame-retardant member 51 is positioned between the battery 20 and the battery cover 30 and covers the battery 20. When the electronic device is subjected to the abnormal force, so that the battery 20 is in a fault (such as a short circuit) and heat generated by the battery 20 instantaneously causes overheating or burning of the battery 20, because the first heat-insulating flame-retardant member 51 covers the battery 20 and is located between the battery 20 and the battery cover 30, the first heat-insulating flame-retardant member 51 can block the heat or fire of the battery 20 and prevent the heat or fire of the battery 20 from being rapidly transferred to the battery cover 30 as much as possible, so as to slow down scalding of the battery cover 30 and delay ignition of the battery cover 30 by the battery 20, for example, the ignition time of the battery cover 30 by the battery 20 is prolonged from the original 5s-10s to 30s-40s and the like, so as to protect the battery cover 30, improve the safety performance of the electronic device, increase emergency processing time for a user, and when the temperature of the electronic device such as the mobile phone 100 is sensed to be abnormal, the mobile phone 100 can be quickly transferred to a safe place to reduce financial loss and personal injury to the user caused by the failure of the battery 20, thereby protecting the user.

It should be noted that emergency treatment includes, but is not limited to, removing an electronic device such as the mobile phone 100 from a pocket of clothes, a pocket of trousers, or a bag, or other measures to transfer the mobile phone 100 from other dangerous places to a safe place.

Meanwhile, since the first heat-insulating flame-retardant member 51 blocks heat of the battery 20, deformation of the battery cover 30 due to heat when the battery 20 is overheated or burned can be alleviated by the first heat-insulating flame-retardant member 51. In addition, since the heat insulating flame retardant member 50 has an elastic structure, the first heat insulating flame retardant member 51 is located between the battery 20 and the battery cover 30. That is, the first heat-insulating flame-retardant member 51 and the battery cover 30 are two separate structures. Thus, after battery cover 30 is deformed by heat, first heat-insulating flame-retardant member 51 can be elastically deformed along with battery cover 30, and can buffer the deformation of battery cover 30 to reduce the deformation of battery cover 30. Therefore, compared with the flame-retardant ink, the first heat-insulating flame-retardant member 51 can also effectively avoid the protection failure of the first heat-insulating flame-retardant member 51 caused by the thermal deformation of the battery cover 30, and perform effective heat-insulating flame-retardant protection on the battery cover 30.

Battery cover 30 may be a plastic or other relatively flexible non-metallic material. Therefore, the safety performance of the electronic equipment such as the mobile phone 100 can be improved while other performance indexes such as 5G technology are not influenced, and financial loss and personal injury brought to users by faults of the battery 20 are reduced.

Specifically, the heat-insulating flame-retardant member 50 may be made of a flame-retardant material having a porous mesh structure. Therefore, the heat transfer of the battery 20 to the battery cover 30 can be effectively limited through the porous net structure of the flame retardant material, so that the flame retardant material has certain flame retardant and heat insulation properties. When the battery 20 is overheated or burns due to a fault, the first heat-insulating flame-retardant member 51 can effectively block heat or fire of the battery 20, and delay the battery cover 30 from being scalded or ignited by the battery 20, so as to protect the battery cover 30, increase more emergency treatment time for a user, and improve the safety performance of the electronic device.

As a possible embodiment, the flame retardant material may be an aerogel. The aerogel has lower thermal conductivity and is a porous net material with lower thermal conductivity at present, so that the aerogel has better heat insulation performance and flame retardant performance. Therefore, the application can utilize the better fire-retardant and heat-proof quality of aerogel for first thermal-insulated fire-retardant piece 51 has also been given better fire-retardant and heat-proof quality, so that when battery 20 trouble is overheated or the burning, through first thermal-insulated fire-retardant piece 51 aerogel layer promptly can carry out the separation effectively to the heat of battery 20 or the fire potential of burning, so that better protection battery cover 30, thereby further promote electronic equipment's security performance, reduce financial loss and the bodily injury that battery 20 trouble brought for the user. Meanwhile, compared with other existing heat-insulating and flame-retardant materials, the aerogel heat-insulating and flame-retardant material can help to reduce the weight of electronic equipment.

Alternatively, as another possible embodiment, the flame retardant material may also be a high flame retardant heat insulation film material (i.e., a heat insulation film) or other elastic material with better heat insulation and flame retardant properties. That is, the aerogel can be replaced by a high flame-retardant heat-insulating film or other elastic materials with better heat-insulating and flame-retardant properties.

The thickness of the first insulating and flame-retardant member 51, such as an aerogel layer, may be 0.2mm or more, such as 0.5 mm. In practical applications, it can be understood that, in consideration of the overall thickness of the electronic device, the greater the thickness of the first heat-insulating flame-retardant member 51, the better the heat-insulating flame-retardant protection effect on the battery cover 30.

The electronic device of the embodiment of the present application is further described below by taking the flame retardant material as an aerogel as an example.

Specifically, the insulating flame-retardant member 50 may have a layered structure. That is, the first insulating flame-retardant member 51 may have a layered structure. That is, the first insulating flame retardant member 51 may be an aerogel layer. Compared with other possible structural forms of the heat-insulating flame-retardant member 50, by arranging the layered structure of the heat-insulating flame-retardant member 50, on one hand, the first heat-insulating flame-retardant member 51 can be better covered on the battery 20 to block heat or fire of the battery 20 and protect the battery cover 30, and on the other hand, due to the fact that the layered structure is thinner, the heat-insulating flame-retardant member 50 and the electronic device can be lightened and thinned while the same heat-insulating flame-retardant effect is achieved.

In order to achieve full coverage of the battery 20, referring to fig. 2, the battery 20 may be located in the orthographic projection area 121 of the first heat-insulating flame retardant member 51 of the middle frame 10. That is to say, the battery 20 can fall into the covering range of the first heat-insulating flame-retardant member 51 completely, so that the battery 20 can be covered completely by the first heat-insulating flame-retardant member 51, so as to perform the omnibearing heat-insulating flame-retardant protection on the battery cover 30, and can effectively delay the battery cover 30 from being scalded or being ignited by the battery 20, for example, the time for igniting the battery cover 30 by the battery 20 is prolonged from the original 5s-10s to 30s-40s or even longer, and the like, so that the safety performance of the electronic device is improved, the emergency treatment time can be added to a user, so that the user can have time to take emergency treatment, the mobile phone 100 is quickly transferred to a safe place, and the financial loss and the personal injury brought to the user by the fault of the battery 20 are reduced as much as possible.

It should be understood that the orthographic projection area 121 may be understood as a range in which the outer side of the peripheral edge of the first heat-insulating flame-retardant member 51 is constituted in the direction perpendicular to the support plate 12, as shown in fig. 2.

To facilitate the assembly of the first insulating flame retardant member 51, at least part of the edge of the first insulating flame retardant member 51 extends toward the outside of the peripheral edge of the battery 20, as shown in fig. 2. Therefore, the appearance of the first heat-insulating flame-retardant piece 51 can be ensured to be larger than that of the battery 20, and the first heat-insulating flame-retardant piece 51 can reserve production assembly redundancy while ensuring that the battery 20 is fully covered by the first heat-insulating flame-retardant piece 51, so that the first heat-insulating flame-retardant piece 51 can be assembled in the electronic equipment.

Referring to fig. 2, the electronic device may further include a circuit board 80, and the circuit board 80 includes a first circuit board 81 and a second circuit board 82, the first circuit board 81 and the second circuit board 82 being respectively located at opposite sides of the battery 20. The first circuit board 81 is electrically connected to the second circuit board 82. The first circuit board 81 is disposed near one side of the top wall 17 of the middle frame 10, and the second circuit board 82 is disposed near one side of the bottom wall 18 of the middle frame 10. The first circuit board 81 may be understood as a circuit board 80 for supporting various components and achieving electrical connection or electrical insulation between the various components.

The components disposed on the first circuit board 81 may include a heating element 811. That is, the first circuit board 81 has a heat generating element 811 thereon. It will be appreciated that the heating element 811 generates a significant amount of heat during operation. If the heat is not timely removed from the electronic device, the heat generating element 811 and the life span of the electronic device may be affected.

In order to solve the problem of heat dissipation of the heat generating element 811, referring to fig. 2, the electronic device further includes a heat dissipating member 60, wherein a surface of the middle frame 10 facing the battery cover 30 has a heat generating region 15 for accommodating the heat generating element 811, the heat generating region 15 is located at one side of the battery mounting region 14, and the heat dissipating member 60 covers the heat generating element 811. In this way, heat generated by the heat generating element 811 can be absorbed as much as possible by the heat dissipating member 60, and the heat generated by the heat generating element 811 can be dissipated from the electronic device, so that heat dissipation of the heat generating element 811 can be achieved, and the service life of the heat generating element 811 and the electronic device can be prolonged.

Wherein, the thickness of the heat sink 60 may be any value of 0.05mm to 0.25 mm. When the electronic devices are different, the thickness of the heat dissipation member 60 should have corresponding differences, for example, the thickness of the heat dissipation member 60 in the mobile phone 100 may be any value from 0.05mm to 0.15 mm. It can be understood that, in consideration of the overall thickness of the electronic device, when the area of the heat dissipation member 60 is not changed, the greater the thickness of the heat dissipation member 60 is, the better the heat dissipation effect is.

Illustratively, the heat dissipation member 60 may be a graphite sheet, a graphene sheet, a thermally conductive silicone sheet, or other layered structure that may be used for heat dissipation. In the present embodiment, the heat sink 60 is made of a graphite sheet or a graphene sheet. On one hand, the good heat conduction of the graphite can be utilized to improve the heat dissipation effect of the heat dissipation member 60 on the heating element 811, and on the other hand, the good plasticity (namely toughness) of the graphite can be utilized to ensure the heat dissipation effect and simultaneously reduce the thickness of the heat dissipation member 60 as much as possible, which is beneficial to the lightening and thinning of the electronic equipment. In addition to this, the structure of the heat sink 60 can be made more diversified by the arrangement of the graphite sheet or the graphene sheet.

Fig. 3 is a schematic structural diagram of a heat generating region in a mobile phone according to an embodiment of the present application.

In order to facilitate better understanding of the position of the heat generating region 15 in the mobile phone 100, the battery cover 30 of the mobile phone 100 is removed in the embodiment, so as to form the structure shown in fig. 3. Fig. 3 is a rear view of the mobile phone 100, i.e., a back view of the mobile phone 100.

As a possible embodiment, as shown in fig. 3, the heat generating area 15 may be disposed near the top wall 17 of the middle frame 10, and a first circuit board 81 electrically connected to the battery 20 is disposed in the heat generating area 15. That is, the heat sink 60 may be covered on the heat generating element 811 of the first circuit board 81. In this way, the heat dissipation member 60 can absorb heat of the heating elements 811 on the first circuit board 81, and help dissipate heat of the heating elements 811 on the first circuit board 81 from the electronic device, so as to improve the heat dissipation performance of the electronic device and prolong the service life of the electronic device.

The electronic device may further include a protection board 21, the battery 20 may be electrically connected to the power management module and the charging management module on the first circuit board 81 through the protection board 21 and the connector, and the power management module receives an input of at least one of the battery 20 and the charging management module and supplies power to the display 40, the processor and the memory on the first circuit board 81, and other power consuming modules in the electronic device. The power management module may also be used to monitor parameters such as battery capacity, battery cycle number, battery state of health (leakage, impedance), etc. In other embodiments, the power management module may also be disposed in the processor of the circuit board 80. In other embodiments, the power management module and the charging management module may be disposed in the same device.

The heat generating element 811 on the first circuit board 81 includes, but is not limited to, a processor, a controller, a memory, a power management unit, a charging management module, a radio frequency, a wifi module, a bluetooth module, and the like.

Alternatively, as another possible embodiment, as shown in fig. 3, the heat generating region 15 may be provided near one side of the bottom wall 18 of the middle frame 10, and the second circuit board 82 may be provided in the heat generating region 15. The second circuit board 82 may be provided with a heating element 811, wherein the heating element 811 on the second circuit board 82 includes, but is not limited to, an LED lamp, a speaker, and the like. At this time, the heat sink 60 may be provided on the heat generating element 811 overlying the second circuit board 82 so as to dissipate heat from the heat generating element 811 of the second circuit board 82 through the heat sink 60. The partition plate 13, the frame 11, and the support plate 12 together form a heat generating region 15 on the center frame 10. The heat generating area 15 can also be understood as a circuit board 80 mounting area on the middle frame 10.

The electronic device according to the embodiment of the present application will be further described by taking the example that the heat generating region 15 is disposed near the top wall 17 of the middle frame 10.

Fig. 4 is a perspective view of a mobile phone according to an embodiment of the present disclosure, fig. 5 is a cross-sectional view of the mobile phone of fig. 4 along a direction B-B, and fig. 6 is a schematic structural view of a heat-insulating and flame-retardant assembly according to an embodiment of the present disclosure.

Specifically, referring to fig. 4 and 5, the end of the heat sink 60 extends toward the battery mounting region 14, and at least a part of the structure of the heat sink 60 is located between the first insulating flame retardant member 51 and the battery cover 30. That is, a partial structure of the heat sink 60 may be located between the first heat-insulating flame-retardant member 51 and the battery cover 30, or an entire structure of the heat sink 60 may be located between the first heat-insulating flame-retardant member 51 and the battery cover 30. Thus, while delaying the battery cover 30 from being scalded or being ignited by the battery 20 through the first heat-insulating flame-retardant member 51, at least part of the structure of the heat dissipation member 60 can be disposed closer to one side of the battery cover 30 than the first heat-insulating flame-retardant member 51, the heat of the heating element 811 is absorbed by the heat dissipation member 60, and the heat of the heating element 811 can be diffused from the heating region 15 to the battery mounting region 14, so that the heat dissipation area of the heat dissipation member 60 is increased, the heat of the heating element 811 is uniformly conducted to the battery cover 30 through the heat dissipation member 60, the heat of the heating element 811 is dissipated through the battery cover 30, the heat dissipation efficiency of the heat dissipation member 60 is improved, and the service lives of the heating element 811 and the electronic device are further prolonged.

As shown in fig. 4, the heat sink 60 may include a heat sink body 61 and an extension 62 connected to the heat sink body 61, and an end of the heat sink body 61 extends from the heat generation region 15 to the battery mounting region 14 to form the extension 62. Heat sink 60 can thus diffuse the absorbed heat of heat generating region 15 to battery mounting region 14, and while increasing the heat dissipating area of heat sink 60 itself, the heat of heat generating element 811 can be uniformly conducted to battery cover 30 and dissipated through battery cover 30, thereby improving the heat dissipating efficiency of heat sink 60.

Further, the ratio of the extending portion 62 to the length of the battery mounting region 14 in the lengthwise direction of the battery mounting region 14 (i.e., the Y direction in fig. 4) is 2/3 or less. Thus, the heat dissipation efficiency of the heat dissipation member 60 is improved, and the length of the heat dissipation member 60 can be controlled within a certain range, so that the manufacturing cost of the electronic device is better considered.

In order to facilitate the arrangement of the heat sink 60, referring to fig. 5, a first gap L1 for accommodating the heat sink 60 is formed between one end of the first heat-insulating flame-retardant member 51 near the heat generating region 15 and the battery cover 30. By the arrangement of the first gap L1, at least a part of the structure of the heat sink 60 can be easily disposed between the first heat-insulating flame-retardant member 51 and the battery cover 30, so that the heat of the heating element 811 absorbed by the heat sink 60 can be dissipated from the electronic device through the battery cover 30.

In one possible embodiment, as shown in fig. 5, a first heat-insulating flame-retardant member 51 is provided on a side of the battery cover 30 facing the battery 20 (i.e., an inner surface of the battery cover 30) through the heat sink 60. On the basis of ensuring that the first heat-insulating flame-retardant piece 51 covers the battery 20 and performing heat-insulating flame-retardant protection on the battery cover 30, the first heat-insulating flame-retardant piece 51 can be fixed in the electronic equipment, the deformation of the battery cover 30 after being heated can be reduced through the elastic deformation of the first heat-insulating flame-retardant piece 51, and the heat dissipation member 60 can be attached to the battery cover 30, so that the heat absorbed by the heat dissipation member 60 can be dissipated out of the electronic equipment through the battery cover 30, the heat dissipation of the heating element 811 in the heating area 15 is realized, and the heat dissipation efficiency of the heat dissipation member 60 is improved.

Further, an adhesive member 90 may be further disposed in the electronic device, wherein the adhesive member 90 may include a first adhesive member 91, and the heat sink 60 is disposed on a surface of the battery cover 30 facing the battery 20. Thereby achieving fixation of the heat sink 60 within the electronic device. The first heat-insulating flame-retardant member 51 may be bonded to the heat sink 60 and one surface of the battery cover 30 facing the battery 20 (i.e., the inner surface of the battery cover 30) by a first bonding member 91, respectively. Therefore, the first heat-insulating flame-retardant piece 51 can be respectively bonded with the heat dissipation piece 60 and the battery cover 30 through the first bonding piece 91, so that the first heat-insulating flame-retardant piece 51 can be fixed in the electronic equipment, and meanwhile, certain deformation of the first heat-insulating flame-retardant piece 51 can be absorbed through the first bonding piece 91, so that the deformation of the battery cover 30 after being heated can be further reduced, and the heat-insulating flame-retardant protection capability of the first heat-insulating flame-retardant piece 51 on the battery 20 can be improved.

Specifically, the first insulating flame retardant member 51 and the first adhesive member 91 may form an insulating flame retardant assembly as shown in fig. 6. This may facilitate the adhesion of the first heat-insulating flame-retardant member 51 to the heat sink 60 and the battery cover 30.

The adhesive member 90 may include a second adhesive member 92, and the heat sink 60 may be adhered to a surface of the battery cover 30 facing the battery 20 through the second adhesive member 92, so as to fix the heat sink 60 in the electronic device.

Illustratively, the adhesive 90 includes, but is not limited to, a backing adhesive or other type of double-sided adhesive. In order to enhance the heat dissipation rate of the heat dissipation member 60, the second adhesive member 92 may use an existing thermally conductive adhesive.

Specifically, referring to fig. 5, one end of the first heat-insulating flame-retardant member 51 close to the heat generating region 15 has a bent portion 511, the bent portion 511 is bent toward a side away from the battery cover 30, and a first gap L1 is formed between the bent portion 511 and the battery cover 30. By providing the bent portion 511, the formation of the first gap L1 can be facilitated without affecting the adhesion and fixation of the first heat-insulating flame retardant member 51 to the battery cover 30 by the first adhesive member 91, and thus, a part of the structure of the heat sink 60 can be fixed between the first heat-insulating flame retardant member 51 and the battery cover 30.

It should be noted that the distance of the first gap L1 is adapted to the thickness of the heat sink 60 and the thickness of the first adhesive member 91 and the second adhesive member. This can facilitate the adhesion of the first heat-insulating flame-retardant member 51 to the battery cover 30 through the heat sink 60 on the side facing the battery 20. In the present embodiment, the distance of the first gap L1 is not further limited.

Fig. 7 is a perspective view of another mobile phone according to an embodiment of the present disclosure, and fig. 8 is a cross-sectional view of the mobile phone of fig. 7 taken along the direction C-C.

The heating element 811 includes a first heating element 8111 and a second heating element 8112, and the amount of heat generated by the first heating element 8111 is larger than the amount of heat generated by the second heating element 8112. The first heat generating element 8111 includes, but is not limited to, a processor, a controller, a radio, a memory, a power management unit, a charging management module, or the like on the first circuit board 81. Accordingly, the second heat generating element 8112 is another heat generating element on the first circuit board 81 except for the first heat generating element 8111. Therefore, the first heating element 8111 generates a large amount of heat during operation, and the large amount of heat may be directly transferred to the battery cover 30, so that the battery cover 30 is excessively hot at a position corresponding to the first heating element 8111, which is easy to cause personal injury to a user.

In order to avoid the phenomenon that the battery cover 30 is locally scalded, referring to fig. 7 and 8, on the basis of the above, the heat-insulating flame-retardant member 50 may further include a second heat-insulating flame-retardant member 52 covering the first heat-generating element 8111, and a part of the structure of the heat sink 60 may be connected to a surface of the battery cover 30 facing the battery 20 (i.e., an inner surface of the battery cover 30) through the second heat-insulating flame-retardant member 52. Therefore, the heat dissipation effect of the heat dissipation member 60 on the heating element 811 is not affected, and meanwhile, the heat of the first heating element 8111 can be isolated through the arrangement of the second heat-insulating flame-retardant member 52, so that the heat of the first heating element 8111 can be prevented from being transferred to the battery cover 30 without being dissipated by the heat dissipation member 60, the scalding of the battery cover 30 in the heating area 15 can be delayed or avoided, and the temperature on the battery cover 30 is uniform.

It should be noted that the shape of the second heat-insulating flame-retardant member 52 can be adjusted according to the arrangement position of the first heating element 8111 on the first circuit board 81, so that the second heat-insulating flame-retardant member 52 can fully cover the first heating element 8111 on the first circuit board 81. The composition and thickness of the second insulating and flame-retardant member 52 can refer to the related description of the first insulating and flame-retardant member 51, and further description is not repeated in this embodiment.

In order to facilitate the arrangement of the second heat-insulating flame-retardant member 52, as shown in fig. 8, a second gap L2 for accommodating the second heat-insulating flame-retardant member 52 is provided between one end of the heat sink 60 located at the heat generating region 15 and the battery cover 30. This can facilitate the disposition of the second heat-insulating flame retardant member 52 between the heat sink 60 and the battery cover 30, thereby achieving a partial structure of the heat sink 60 connected to the battery cover 30 through the second heat-insulating flame retardant member 52 on the side facing the battery 20.

The second heat-insulating and flame-retardant member 52 may be bonded to the battery cover 30 at a side facing the battery 20 by a double-sided tape or other bonding member.

The distance of the second gap L2 should be adapted to the thickness of the second insulating flame retardant member 52, as with the first gap L1. This can facilitate the adhesion of the heat sink 60 to the battery cover 30 side facing the battery 20 through the second heat-insulating flame retardant member 52. In the present embodiment, the distance of the second gap L2 is not further limited.

As one possible embodiment, referring to fig. 8, one end of the heat sink 60 located in the heat generating region 15 has a first bending section 63, the first bending section 63 is bent toward a side away from the battery cover 30, and a second gap L2 is provided between the first bending section 63 and the battery cover 30. This makes it possible to form the second gap L2 between the heat sink 60 and the battery cover 30 while ensuring that the heat sink 60 is disposed on the battery cover 30, to facilitate the disposition of the second heat-insulating flame-retardant member 52.

It should be noted that the fixing bracket 16 of the mobile phone 100 is omitted in fig. 5, 7 and 8 in order to facilitate better understanding of the positional relationship between the heat sink 60 and the heat generating element 811. The arrangement position of the fixing bracket 16 in the electronic apparatus can refer to the structure in fig. 9 and 10.

Fig. 9 is a perspective view of a rear view of another mobile phone provided in an embodiment of the present application, fig. 10 is a cross-sectional view of the mobile phone of fig. 9 taken along the direction D-D, and fig. 11 is a schematic structural view of another heat-insulating and flame-retardant assembly provided in an embodiment of the present application.

As can be seen from fig. 9 and 10, the electronic apparatus further includes a fixing bracket 16, and the fixing bracket 16 is disposed on the heat generating region 15. The fixing bracket 16 is located on the side of the first circuit board 81 facing the battery cover 30. That is, the fixing bracket 16 is located at the first circuit board 81 and the battery cover 30, and is connected to the middle frame 10. This not only protects the battery 20 by the fixing bracket 16, but also presses the protection plate 21 on the battery 20 to enhance the stability of the electrical connection of the battery 20 to the first circuit board 81.

As another possible embodiment, as shown in fig. 9 and 10, both the heat radiating member 60 and the first insulating flame-retardant member 51 may be provided on the fixing bracket 16. Thus, while the heat dissipation member 60 and the first heat-insulating flame-retardant member 51 are fixed in the electronic device, a gap can be formed between the heat dissipation member 60 and the battery cover 30, so that other functional modules can be arranged between the heat dissipation member 60 and the battery cover 30, which is helpful for expanding the functions of the electronic device and diversifying the functions of the electronic device.

Further, the electronic device may further include a Near Field Communication module 70 (NFC). Thus, the electronic device, such as the mobile phone 100, can exchange data when being close to each other, and the mobile phone 100 can have various functions of electronic payment, identity authentication, ticketing, data exchange, anti-counterfeiting and the like, so that the consumption behavior of the user gradually becomes electronic.

The nfc module 70 may be disposed between the heat sink 60 and the battery cover 30, and the first heat-insulating and flame-retardant member 51 and the nfc module 70 are respectively disposed on two opposite surfaces of the heat sink 60. On the basis of ensuring the heat dissipation performance of the heat dissipation member 60 and the heat insulation, flame retardant and protection performance of the first heat insulation and flame retardant member 51 on the battery cover 30, the near field communication module 70 can be arranged close to the battery cover 30, so that the functions of the near field communication module 70 are realized, the functions of the electronic equipment are expanded, and the functions of the electronic equipment are diversified.

In order to facilitate the arrangement of the near field communication module 70, referring to fig. 10, a third gap L3 is provided between the heat sink 60 and the fixing bracket 16, and an end of the first heat-insulating flame-retardant member 51 may be located within the third gap L3. This facilitates the fixing of the first heat-insulating flame-retardant member 51 to the fixing bracket 16.

Wherein, the heat sink 60 has a second bending section 64 at an end close to the heat generating region 15, the second bending section 64 is bent toward a side of the fixing bracket 16, and the near field communication module 70 is located between the second bending section 64 and the battery cover 30. This makes it possible to increase the gap between the end of the heat sink 60 near the heat generating region 15 and the battery cover 30, on the one hand, to facilitate the arrangement of the near field communication module 70, and also to facilitate the connection of the heat sink 60 to the fixing bracket 16, on the other hand.

Specifically, as shown in fig. 10, the adhesive member 90 may further include a third adhesive member 93, that is, the electronic device may further include the third adhesive member 93. Both the first heat-insulating flame-retardant member 51 and the heat sink member 60 may be bonded to the fixing bracket 16 by a third bonding member 93. By arranging the third bonding member 93, the first heat-insulating flame-retardant member 51 and the heat dissipation member 60 can be conveniently fixed on the fixing bracket 16, so that the first heat-insulating flame-retardant member 51 and the heat dissipation member 60 can be assembled in the electronic device, and the number of the bonding members 90 in the electronic device can be reduced while the partial structure of the heat dissipation member 60 is located between the first heat-insulating flame-retardant member 51 and the battery cover 30.

Here, the first heat-insulating flame-retardant member 51 may be a cantilever structure disposed between the battery 20 and the battery cover 30 as shown in fig. 10. Alternatively, the portion of the first heat-insulating flame-retardant member 51 protruding out of the heat sink 60 may be bonded to the battery cover 30 by the first bonding member 91. In the present embodiment, the structural form of the first heat-insulating flame-retardant member 51 between the battery 20 and the battery cover 30 is not further limited.

It should be noted that the first insulating flame retardant member 51, the heat dissipating member 60, the first adhesive member 91 and the third adhesive member 93 may form an insulating flame retardant assembly as shown in fig. 11, which can facilitate the assembly of the first insulating flame retardant member 51 and the heat dissipating member 60 on the fixing bracket 16.

This application is through setting up thermal-insulated fire-retardant piece 50 in electronic equipment, and set up first thermal-insulated fire-retardant piece 51 between battery 20 and battery cover 30, and cover first thermal-insulated fire-retardant piece 51 on battery 20, can be with the heat or the fire separation of battery 20 like this, it scalds to slow down battery cover 30, delay battery cover 30 and be lighted by battery 20, promote electronic equipment's security performance, when reducing financial loss and the bodily injury that battery 20 trouble brought for the user, can carry out effectual thermal-insulated fire-retardant protection to battery cover 30.

In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, an indirect connection via an intermediary, a connection between two elements, or an interaction between two elements. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the embodiments of the application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

Claims

1. An electronic device is characterized by comprising a middle frame, a battery cover and an elastic heat-insulating flame-retardant piece, wherein a battery assembly area is arranged on one surface of the middle frame, which faces to the battery cover, the battery is positioned in the battery assembly area, and the battery cover is arranged on the battery and connected with the middle frame; the heat-insulating flame-retardant piece is of an elastic structure and comprises a first heat-insulating flame-retardant piece, and the first heat-insulating flame-retardant piece is positioned between the battery and the battery cover and covers the battery;

one side of the middle frame, facing the battery cover, is provided with a heating area for containing a heating element, one end, close to the heating area, of the first heat-insulation flame-retardant piece is provided with a bending part, the bending part is bent towards the side far away from the battery cover, and a first gap is formed between the bending part and the battery cover.

2. The electronic device of claim 1, wherein the heat-insulating flame-retardant member is made of a flame-retardant material having a porous network structure.

3. The electronic device of claim 2, wherein the flame retardant material is an aerogel.

4. The electronic device of claim 1, wherein the thermally insulating flame retardant member is a layered structure.

5. The electronic device of claim 1, wherein the battery is located within an orthographic area of the first thermally insulating flame retardant within the middle frame.

6. The electronic device of claim 5, wherein at least a portion of an edge of the first insulating flame retardant extends outward of a perimeter of the battery.

7. The electronic device according to any one of claims 1 to 6, further comprising a heat dissipation member, the heat generation region being located on one side of the battery mounting region, the heat dissipation member covering the heat generation element.

8. The electronic device according to claim 7, wherein an end portion of the heat dissipation member extends toward the battery mounting region, and at least a partial structure of the heat dissipation member is located between the first heat-insulating flame-retardant member and the battery cover.

9. The electronic device according to claim 8, wherein a first gap for accommodating the heat dissipation member is provided between one end of the first heat-insulating flame-retardant member close to the heat generation region and the battery cover.

10. The electronic device according to claim 9, wherein the first heat-insulating flame retardant member is provided on a side of the battery cover facing the battery via the heat-dissipating member.

11. The electronic device according to claim 10, further comprising a first adhesive member, wherein the heat dissipation member is disposed on a surface of the battery cover facing the battery, and the first heat-insulating flame retardant member is adhered to the heat dissipation member and the surface of the battery cover facing the battery via the first adhesive member, respectively.

12. The electronic device according to claim 7, wherein the heat generating element includes a first heat generating element and a second heat generating element, an amount of heat generated by the first heat generating element is larger than an amount of heat generated by the second heat generating element, the heat insulating and flame retardant member further includes a second heat insulating and flame retardant member covering the first heat generating element, and a partial structure of the heat dissipating member is connected to a surface of the battery cover facing the battery through the second heat insulating and flame retardant member.

13. The electronic device according to claim 12, wherein a second gap for accommodating the second heat-insulating flame-retardant member is provided between one end of the heat sink located in the heat-generating region and the battery cover.

14. The electronic device according to claim 13, wherein an end of the heat dissipating member located in the heat generating region has a first bent section bent toward a side away from the battery cover, and the second gap is provided between the first bent section and the battery cover.

15. The electronic device according to claim 7, further comprising a fixing bracket disposed on the heat generating region, wherein the heat dissipating member and the first heat-insulating flame-retardant member are both disposed on the fixing bracket.

16. The electronic device of claim 15, further comprising a near field communication module disposed between the heat dissipation member and the battery cover, wherein the first thermally insulating flame retardant member and the near field communication module are respectively located on opposite sides of the heat dissipation member.

17. The electronic device of claim 16, wherein the heat sink and the stationary bracket have a third gap therebetween, an end of the first thermally insulating flame retardant member being located within the third gap;

one end, close to the heating area, of the heat dissipation piece is provided with a second bending section, the second bending section bends towards one side of the fixing support, and the near field communication module is located between the second bending section and the battery cover.

18. The electronic device according to claim 15, further comprising a third adhesive member, wherein the first heat-insulating flame-retardant member and the heat dissipation member are both adhered to the fixing bracket by the third adhesive member.

19. The electronic device according to claim 7, wherein the heat dissipation member includes a heat dissipation body and an extension portion connected to the heat dissipation body, an end portion of the heat dissipation body extending from the heat generation region to the battery mounting region to form the extension portion.

20. The electronic device of claim 19, wherein a ratio of the extension portion to the length of the battery mounting region in a direction along the length of the battery mounting region is equal to or less than 2/3.

21. The electronic device of claim 7, wherein the heat spreading member is a graphite sheet or a graphene sheet.

22. The electronic device according to claim 7, wherein the heat generating region is disposed near a top wall of the middle frame, a first circuit board electrically connected to the battery is disposed in the heat generating region, and the first circuit board has the heat generating element thereon.

23. The electronic device of any of claims 1-6, wherein the battery cover is a plastic battery cover.