CN220526983U

CN220526983U - Electronic equipment

Info

Publication number: CN220526983U
Application number: CN202321667872.4U
Authority: CN
Inventors: 孙健; 陈宇飞
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2023-06-28
Filing date: 2023-06-28
Publication date: 2024-02-23
Anticipated expiration: 2033-06-28

Abstract

The application provides electronic equipment, which comprises a shell and a battery, wherein the shell is provided with a battery compartment; the battery is arranged in the battery compartment, and an insulating layer is arranged between at least part of the peripheral edge part of the battery along the peripheral direction of the battery and the corresponding battery compartment so as to electrically isolate the battery from the battery compartment; the insulating layer includes a first insulating portion formed by applying an insulating varnish on an outer side surface of the at least partial region of the outer peripheral portion or an inner side surface of the battery compartment. By adopting the scheme, the insulation between the outer peripheral edge part of the battery and the inner side surface of the battery compartment is realized, and meanwhile, the first insulation part is made thinner, so that the occupied volume of the insulation layer can be reduced. Therefore, under the condition that the sizes of the inner spaces of the battery bins are the same, larger installation space can be provided for the battery cores of the batteries, and then more battery cores or larger battery cores can be integrated, the capacity of the batteries is improved, and the problem that the standby requirement of the electronic equipment cannot be met when the electronic equipment is light and thin is solved.

Description

Electronic equipment

Technical Field

The application relates to the technical field of batteries, in particular to electronic equipment.

Background

A battery refers to a device that contains electrolyte solution and metal electrodes to create a cup, tank or other container or part of the cavity of a composite container that can convert chemical energy into electrical energy. At present, more and more electronic devices adopt batteries to provide electric energy for the electronic devices to realize endurance. In the evaluation of the service performance of various electronic devices, the cruising ability of the electronic device is an important index for measuring the overall performance of the electronic device, and depends on the capacity of a battery adopted by the electronic device. Therefore, increasing the capacity of the battery is critical to improving the cruising ability of the electronic device. The prior art increases the capacity of a battery by integrating as large a cell as possible in the battery, that is, the larger the cell of the battery, the larger the capacity.

However, in the prior art, when a battery (for example, a lithium battery packaged by an aluminum plastic Film, also referred to as a soft package battery) is mounted in a battery compartment of an electronic device, in order to avoid that a casing of the battery (for example, a casing formed by the aluminum plastic Film) is in direct contact with the battery compartment to generate electrochemical reaction to generate electric corrosion, an insulating Film is generally coated on the whole outer peripheral edge portion of the battery to electrically insulate the outer peripheral edge portion of the battery from a corresponding battery compartment, for example, PI films (Polyimide films) are used for coating four outer peripheral edge portions of the battery (the PI films can coat the side surfaces, the bottom surface and the top surface of the corresponding outer peripheral edge portion), and the bottom surface of other portions of the battery except for the outer peripheral edge portion is adhered to the bottom surface of the battery compartment through an adhesive portion (back adhesive); or, two outer edge parts oppositely arranged at the battery are wrapped by PI films, the other two outer edge parts oppositely arranged are wrapped by wrapping films (easy to tear and paste), and the wrapping films wrap the whole bottom surface of the battery and are adhered to the bottom surface of the battery bin through back glue. The two ways occupy more volume of the battery when the internal space of the battery compartment (namely the battery installation space) is fixed, and the PI film or the wrapping film (the thickness of the PI film or the wrapping film is at least 50 μm) can ensure that the volume of the battery core in the battery is limited, so that the volume of the battery core adopted when the battery is installed in the battery compartment of the electronic equipment is limited, and the capacity is lower.

Therefore, when the battery is mounted to the battery compartment, the battery cell of the electronic device in the prior art is limited in size, so that the problem of smaller battery capacity is caused.

Disclosure of Invention

The embodiment of the application provides electronic equipment, which solves the problem that when the battery is arranged in a battery bin of the electronic equipment in the prior art, the volume of a battery cell is limited, so that the battery capacity is smaller.

The embodiment of the application provides electronic equipment, which comprises:

the shell is provided with a battery compartment;

the battery is arranged in the battery compartment, the bottom surface of the battery faces the bottom surface of the battery compartment, the outer side surface of the battery faces the inner side surface of the battery compartment, the battery is provided with an outer peripheral edge part, the outer side surface of the outer peripheral edge part forms the outer side surface of the battery, and the bottom surface of the outer peripheral edge part forms part of the bottom surface of the battery;

wherein, the outer peripheral edge part of the battery has insulating layers between at least partial areas along the circumference of the battery and the corresponding battery compartment to electrically isolate the battery from the battery compartment;

and, the insulating layer includes a first insulating portion located between an outer side face of the at least partial region of the outer peripheral portion and an inner side face of the corresponding battery compartment, and the first insulating portion is formed by coating an insulating paint on the outer side face of the at least partial region of the outer peripheral portion or the inner side face of the battery compartment.

With the above-described technical solution, since the first insulating portion is formed by coating the insulating varnish on the outer side surface of the at least partial region of the outer peripheral portion or the inner side surface of the battery compartment. This makes it possible to make the first insulating portion thinner while achieving insulation between the outer peripheral edge portion of the battery and the inner side surface of the battery compartment, for example, the thickness of the first insulating portion may be between 20 μm and 30 μm. Compare in traditional electronic equipment at the whole peripheral portion cladding insulating film of battery (for example, PI membrane, perhaps, PI membrane and the wrapping film of easily tearing the subsides, the thickness of insulating film reaches 50 mu m at least) to realize insulating scheme between the peripheral portion of battery and the medial surface of battery compartment, this application can reduce the volume that the insulating layer occupy. Therefore, under the condition that the sizes (such as the length, the width and the depth) of the inner spaces of the battery bins are the same, larger installation space can be provided for the battery cells of the battery, so that the battery cells with larger volume can be adopted or the battery cells with larger quantity can be integrated, the capacity of the battery is improved, and the problem that the standby requirement of the electronic equipment cannot be met when the light and thin requirement is realized by the electronic equipment is solved.

In some embodiments, the insulating layer further comprises a second insulating portion located between the bottom surface of the at least partial region of the outer peripheral portion and the bottom surface of the corresponding battery compartment, and the second insulating portion is formed by coating an insulating varnish on the bottom surface of the at least partial region of the outer peripheral portion or the bottom surface of the battery compartment.

With the above-described technical solution, since the second insulating portion is formed by coating the insulating paint on the bottom surface of the at least partial region of the outer peripheral portion or the bottom surface of the battery compartment. This makes it possible to make the second insulating portion thinner while achieving insulation between the outer peripheral edge portion of the battery and the bottom surface of the battery compartment, for example, the thickness of the second insulating portion may be between 20 μm and 30 μm. Compare in traditional electronic equipment at the whole peripheral portion cladding insulating film of battery (for example, PI membrane, perhaps, PI membrane and the wrapping film of easily tearing the subsides, the thickness of insulating film reaches 50 mu m at least) to realize insulating scheme between the bottom surface of peripheral portion and the battery compartment of messenger's battery, this application can further reduce the volume that the insulating layer occupy. Therefore, under the condition that the sizes (such as the length, the width and the depth) of the inner spaces of the battery bins are the same, larger installation space can be further provided for the battery cells of the battery, and accordingly, the battery cells with larger volume can be adopted or more battery cells can be integrated, and the capacity of the battery is improved.

In some embodiments, the second insulating portion further extends to a lower edge of the first insulating portion in an insulating layer formed on the battery compartment;

Alternatively, in the insulating layer formed on the outer peripheral portion of the battery, the second insulating portion also extends to the lower edge of the first insulating portion.

By adopting the technical scheme, the second insulating part of the insulating layer also extends to the lower edge of the first insulating part, so that the insulating effect between the outer peripheral edge part of the battery and the battery compartment can be further improved, and particularly, the position where the outer side surface of the outer peripheral edge part of the battery is connected with the bottom surface, and the position where the inner side surface of the battery compartment is connected with the bottom surface, which is collided and directly electrically contacted, can be avoided when the electronic equipment is in a falling state.

In some embodiments, the region of the bottom surface of the battery compartment in which the second insulating portion is formed is provided as a roughened surface;

alternatively, the region of the bottom surface of the battery compartment where the second insulating portion is formed has an inwardly recessed groove, and the second insulating portion is integrally located in the groove.

By adopting the technical scheme, the area formed with the second insulating part in the bottom surface of the battery compartment is provided with the rough surface, so that the combination property of the second insulating part of the insulating layer and the bottom surface of the battery compartment can be improved.

In addition, the region formed with the second insulating portion in the bottom surface of the battery compartment has an inwardly recessed groove, and the second insulating portion is integrally located in the groove. The volume occupied by the second insulating part of the insulating layer can be further reduced, and the battery box is beneficial to providing larger installation space for the battery cells of the battery under the condition that the sizes (such as the length, the width and the depth) of the inner space of the battery box are the same, so that the battery cells with larger volume can be adopted or more battery cells can be integrated, and the capacity of the battery is improved.

In some embodiments, the bottom surface of the recess is also contiguous with the inner side surface of the battery compartment.

In some embodiments, the first insulating portion has a thickness of 20 μm to 30 μm and the second insulating portion has a thickness of 20 μm to 30 μm.

In some embodiments, an upper edge of the first insulating portion extends to an edge of the opening of the battery compartment in a depth direction of the battery compartment.

In some embodiments, the region of the inner side of the battery compartment where the first insulating portion is formed is provided with a roughened surface. This can promote the bondability of the first insulating portion of the insulating layer with the inner side of the battery compartment.

In some embodiments, the roughened surface is formed by a laser engraving process.

In some embodiments, the battery has an insulating layer between the entire region of the outer peripheral portion of the battery along the circumferential direction thereof and the corresponding battery compartment to form an annular insulating structure looped around the outer peripheral portion of the battery.

In some embodiments, a battery includes:

the battery body is provided with a first outer edge part, a second outer edge part, a third outer edge part and a fourth outer edge part which are connected end to end, wherein the first outer edge part and the third outer edge part are oppositely arranged in a first direction, the second outer edge part and the fourth outer edge part are oppositely arranged in a second direction, and the second outer edge part is arranged as a power receiving part of the battery body; the first direction and the second direction are perpendicular to each other and are perpendicular to the thickness direction of the battery respectively;

The protective plate assembly is arranged on the second outer edge part and forms an outer peripheral part of the battery together with the first outer edge part, the second outer edge part, the third outer edge part and the fourth outer edge part;

the outer side surface of the first outer edge part and the outer side surface of the third outer edge part form part of the outer side surface of the battery, the bottom surface of the first outer edge part and the bottom surface of the third outer edge part form part of the bottom surface of the battery, and insulating layers are arranged between the first outer edge part and the second outer edge part of the battery and the corresponding parts of the battery bin respectively.

In some embodiments, the battery body comprises a battery shell and a battery cell, wherein electrolyte is encapsulated in the battery shell, and the battery cell is positioned in the battery shell and immersed in the electrolyte;

the protective plate component is arranged on the battery shell and is electrically connected with the power connection end of the battery core;

and, the outer side surfaces and the bottom surface of the first outer edge portion are formed by the outer surfaces of the battery case.

In some embodiments, a portion of the battery compartment is also disposed between the second outer edge portion of the battery and the corresponding portion of the battery compartment: the insulating layers are formed on the battery bin, and all the insulating layers on the battery bin are connected in sequence to form a U-shaped insulating structure.

In some embodiments, the width of the second insulating portion between the first outer edge portion and the battery compartment is 5mm to 15mm, the width of the second insulating portion between the second outer edge portion and the battery compartment is 40mm to 60mm, and the width of the second insulating portion between the third outer edge portion and the battery compartment is 5mm to 15mm.

In some embodiments, the insulating varnish is made of unsaturated resin or epoxy resin.

In some embodiments, the bottom surface of the other portion of the battery than the outer peripheral portion is bonded and fixed to the bottom surface of the corresponding battery compartment by the bonding portion.

Drawings

FIG. 1 is a schematic diagram of an electrochemical reaction between an aluminum plastic film of a soft-pack lithium battery and a middle frame of an electronic device in some embodiments;

FIG. 2 is a partial schematic diagram of some aspects of an electronic device;

fig. 3a is a schematic perspective view of a PI film disposed on a soft-pack lithium battery according to some embodiments;

FIG. 3b is a schematic cross-sectional view taken along the direction A-A of FIG. 2;

FIG. 3c is a schematic cross-sectional view in the direction B-B of FIG. 2;

fig. 4a is a schematic perspective view of a flexible lithium battery with wrapping film and PI film according to some embodiments;

fig. 4b is a schematic diagram of an exploded structure of a soft pack lithium battery with a wrapping film and a PI film in some embodiments;

FIG. 4c is a schematic view of a portion of one side of FIG. 4 a;

FIG. 4d is a schematic view of a portion of the other side portion of FIG. 4 a;

fig. 5a is a schematic structural diagram of a foldable electronic device provided in an embodiment of the present application in an unfolded state;

FIG. 5b is a schematic view of the foldable electronic device shown in FIG. 5a in a folded state;

FIG. 5c is an exploded view of the foldable electronic device of FIG. 5 a;

fig. 6a is a schematic diagram of a partial structure of an electronic device according to an embodiment of the present application;

FIG. 6a-1 is a schematic view of the cross-section A-A of FIG. 6 a;

FIG. 6a-2 is a schematic view of the structure of section B-B of FIG. 6 a;

FIG. 7a is a schematic diagram of a battery in an electronic device according to an embodiment of the present application;

FIG. 7b is a schematic view of a battery in an electronic device according to an embodiment of the present application;

fig. 8a is a schematic structural diagram of a view angle of the battery body and the protection plate assembly according to the embodiment of the present application;

fig. 8b is a schematic structural diagram of a battery body and a protection plate assembly according to another view angle provided in an embodiment of the present application;

FIG. 9a is a schematic diagram illustrating an arrangement of an insulating layer according to an embodiment of the present disclosure;

FIG. 9b is a schematic diagram of another arrangement of an insulating layer according to an embodiment of the present disclosure;

fig. 10a is a schematic partial structure of a housing of an electronic device according to an embodiment of the present application;

FIG. 10b is a schematic view of section A-A of FIG. 10 a;

fig. 11 is a dimensional explanatory diagram of a second insulating portion in the embodiment of the present application;

fig. 12a is a schematic diagram of an assembly structure of a non-foldable electronic device according to an embodiment of the present application;

fig. 12b is an exploded view of a non-foldable electronic device according to an embodiment of the present application.

Some scheme reference numerals illustrate:

10', an electronic device; 10A', soft package lithium battery; 10B', a battery cell; 101A', electrolyte; 102A', an aluminum plastic film; 1021A', surface layer; 1022A', an intermediate layer; 1023A' and an inner layer; 1031A' and a positive electrode; 1032A', negative electrode;

11A', middle frame;

12A' and an insulating film; 121A', PI film; 122A', wrapping film.

The reference numerals of the application illustrate:

1. an electronic device;

100. a housing assembly; 10. a housing; 10a, a first housing; 10b, a second housing; 10c, a rotating shaft mechanism; 11. a battery compartment; 110. a groove; 111. an inner side surface; 112. a bottom surface; 12. folding the screen; 12A, a display screen; 121. a first screen portion; 122. a second screen portion; 123. a foldable portion; 13. a rear cover;

20. a battery; 21. an outer peripheral edge portion; 210A, outer side; 210B, bottom surface; 211. a first outer edge portion; 212. a second outer edge portion; 213. a third outer edge portion; 214. a fourth outer edge portion; A. a first direction; B. a second direction; 201. a battery body; 2012. a positive electrode tab; 2013. a negative electrode tab; 202. a protective plate assembly; 2021. a protective plate holder; 2022. a printed circuit board; 2023. a flexible circuit board; 2024. an electrical terminal; 23. a battery case; 230. a mounting part;

30. An insulating layer; 31. a first insulating portion; 32. a second insulating portion; 30A, a first insulating layer; 30B, a second insulating layer; 30C, a third insulating layer;

40. a main board;

50. a camera module;

60. an adhesive part;

710. a first insulating film; 720. a second insulating film; 730. and a third insulating film.

Detailed Description

A battery refers to a device that contains electrolyte solution and metal electrodes to create a cup, tank or other container or part of the cavity of a composite container that can convert chemical energy into electrical energy. Batteries generally include dry cell batteries, lead storage batteries, lithium batteries.

For small-size electronic equipment of once only, because the lithium cell has better electric power storage performance, adopts the lithium cell generally, especially adopts soft packet lithium cell, and soft packet lithium cell only can blow the gas at most and split under the circumstances of taking place the potential safety hazard to can guarantee small-size electronic equipment and have better security. The soft package lithium battery is a lithium battery formed by packaging an aluminum plastic film.

The soft pack lithium battery will be described with reference to the accompanying drawings.

Referring to fig. 1, fig. 1 is a schematic diagram of an electrochemical reaction between an aluminum plastic film of a soft-pack lithium battery and a middle frame of an electronic device in some embodiments.

As shown in fig. 1, the soft-pack lithium battery 10A 'has an electrolyte 101A' inside, and the outer side of the soft-pack lithium battery is coated with an aluminum plastic film 102A ', and the aluminum plastic film 102A' generally comprises a surface layer 1021A ', an intermediate layer 1022A' and an inner layer 1023A ', and the surface layer 1021A', the intermediate layer 1022A 'and the inner layer 1023A' are adhered to form a film by an adhesive. Wherein the surface layer 1021A' is usually a nylon glue layer and plays a role in preventing air, especially oxygen, from penetrating; the middle layer 1022A' is made of aluminum foil or copper foil as base material to prevent water, obstruct and form product; the inner layer 1023A ' is a resin layer, which may be polypropylene, and serves primarily as a seal bond, and serves to separate the intermediate layer 1022A ' (e.g., an aluminum foil layer or a copper foil layer) from the cell, prevent leakage of the packaged electrolyte to corrode the intermediate layer 1022A ', and the inner layer 1023A ' is in contact with the electrolyte 101A '.

The soft-pack lithium battery 10A 'may further include a battery cell 10B', wherein the battery cell 10B 'is provided with external tabs, and the tabs refer to the use of metal conductor strips to lead out the positive electrode 1031A' and the negative electrode 1032A 'in the battery cell, and the metal conductor strips extend outwards from the battery cell 10B' to form contact points during charging and discharging.

After the soft package lithium battery 10A ' is mounted in the battery compartment of the middle frame 11A ' of the electronic equipment, when the soft package lithium battery 10A ' is directly contacted with the battery compartment of the middle frame 11A ', when an electronic path, an ion path and a voltage are formed, the electric corrosion is caused to the aluminum plastic film 102A '.

The electronic path means that the negative electrode 1032A ' of the soft package lithium battery 10A ' forms an electric circuit with the battery compartment of the middle frame 11A ' of the electronic device.

The ion path means a phenomenon in which the inner layer 1023A ' is torn and broken, and the electrolyte 101A ' contacts the intermediate layer 1022A '.

The voltage greater than 0.5V means that the use voltage of the soft pack lithium battery 10A' is greater than 0.5V.

That is, after the soft pack lithium battery 10A ' is mounted in the battery compartment of the middle frame 11A ' of the electronic device, when the negative electrode 1032A ' of the soft pack lithium battery 10A ' forms an electric circuit with the middle frame 11A ' of the electronic device, the electrolyte 101A ' contacts the middle layer 1022A ', and when the use voltage of the soft pack lithium battery 10A ' is greater than 0.5V, the middle layer 1022A ' (aluminum plastic film) is electrically corroded.

For this problem, to avoid the electric corrosion to the aluminum plastic film, it is possible to prevent the negative electrode 1032A 'of the soft pack lithium battery 10A' from forming an electric circuit with the middle frame 11A 'of the electronic device, or to prevent the electrolyte 101A' from contacting the middle layer 1022A ', or to prevent the use voltage of the soft pack lithium battery 10A' from being greater than 0.5V.

However, in practical applications, the use voltage of the soft-pack lithium battery 10A 'is generally 2V or more, and it is difficult to control the use voltage of the soft-pack lithium battery 10A' to be 0.5V or less. Also, in the case of the inner layer 1023A ', the tearing and breakage defect is difficult to avoid, and the hemming process also easily causes the inner layer 1023A ' to be broken, so that the possibility of the electrolyte 101A ' and the intermediate layer 1022A ' contacting is very high, and thus, the ion conductive path is common in the soft-pack lithium battery 10A '. As shown in fig. 1, when aluminum foil is used for the intermediate layer 1022A ', li+ ions in the electrolyte 101A' react with the aluminum foil contact and form LixAl.

Based on the above-mentioned problems, please refer to fig. 2, fig. 2 is a schematic diagram of a partial structure of some electronic devices according to some aspects.

As shown in fig. 2, the electronic apparatus 10 ' includes a soft pack lithium battery 10A ' and a center 11A '. To avoid galvanic corrosion by direct contact of the housing of the pouch lithium battery 10A ' (e.g., a housing formed of an aluminum plastic film) with the battery compartment, the entire outer peripheral portion of the battery is typically covered with an insulating film 12A ' to electrically insulate the outer peripheral portion of the pouch lithium battery 10A ' from the corresponding battery compartment.

Referring to fig. 3 a-3 c, fig. 3a is a schematic perspective view of a PI film disposed on a soft-pack lithium battery according to some embodiments. Fig. 3b is a schematic cross-sectional view in the direction A-A of fig. 2. Fig. 3c is a schematic cross-sectional view in the direction B-B of fig. 2.

In some aspects, as shown in fig. 3a to 3c, the four outer edge portions of the soft-pack lithium battery 10A ' are wrapped with PI films 121A ' (the PI films may wrap the side, bottom, and top surfaces of the corresponding outer edge portions), and the bottom surfaces of other portions of the soft-pack lithium battery 10A ' except for the outer edge portions are adhered to the bottom surface of the battery compartment by adhesive portions (e.g., back adhesive). That is, the PI film 121A ' is wrapped around the outer surface of the aluminum plastic film 102A ' of the soft pack lithium battery 10A '.

PI film refers to polyimide film (PolyimidEfilm), which is a film type insulating material, and is formed by polycondensation and tape casting of pyromellitic dianhydride (PMDA) and diamine diphenyl ether (ODA) in a strong polar solvent, and imidization, and is mainly used for insulation.

With this solution, since the independent PI film 121A ' is attached to the outer edge of the soft-pack lithium battery 10A ', the PI film 121A ' occupies more space of the soft-pack lithium battery 10A ' because of its thickness of at least 50 μm, and when the soft-pack lithium battery 10A ' is mounted on the electronic device 10 ', the volume of the battery compartment in the electronic device 10 ' is unchanged, i.e., the volume occupied by the battery cells of the soft-pack lithium battery 10A ' is smaller or the number of integrated battery cells is smaller when the internal space of the battery compartment (i.e., the battery mounting space) is fixed, so that the capacity of the soft-pack lithium battery 10A ' is smaller.

Referring to fig. 4 a-4 d, fig. 4a is a schematic perspective view of a wrapping film and PI film provided on a soft-pack lithium battery according to some embodiments. Fig. 4b is a schematic diagram of an exploded structure of a flexible lithium battery with a wrapping film and a PI film. Fig. 4c is a schematic partial structure of one side of fig. 4 a. Fig. 4d is a schematic view of a partial structure of the other side portion of fig. 4 a.

As shown in fig. 4a to 4d, in such a soft pack lithium battery 10A ', two outer edge portions of the soft pack lithium battery 10A ' which are disposed opposite to each other are wrapped with a PI film 121A ', and the other two outer edge portions of the soft pack lithium battery 10A ' which are disposed opposite to each other are wrapped with a wrapping film 122A ' (easy to tear) which wraps the side surfaces, the bottom surfaces, and part of the top surfaces of the corresponding outer edge portions. The wrapping film 122A 'wraps around the entire bottom surface of the soft pack lithium battery 10A' and is adhered to the bottom surface of the battery compartment by a back adhesive. That is, the PI film 121A 'and the wrapping film 122A' are wrapped around the outer surface of the aluminum plastic film 102A 'of the soft pack lithium battery 10A'.

For this solution, since the thickness of the PI film 121A 'and the wrapping film 122A' both reach at least 50 μm, it occupies more space of the soft-pack lithium battery 10A ', and when the soft-pack lithium battery 10A' is mounted on the electronic device 10 ', the volume of the battery compartment in the electronic device 10' is unchanged, that is, the volume occupied by the battery cells of the soft-pack lithium battery 10A 'is smaller or the number of integrated battery cells is smaller when the internal space of the battery compartment (i.e., the battery mounting space) is fixed, so that the capacity of the soft-pack lithium battery 10A' is smaller.

In the above two schemes, when the soft-pack lithium battery 10A ' is mounted to the battery compartment of the electronic device 10 ', in order to avoid that the casing (for example, the casing formed by the aluminum plastic film 102A ') of the soft-pack lithium battery 10A ' is in direct contact with the battery compartment (made of a conductive material, for example, a metal material) to cause electrochemical reaction, electric corrosion occurs, whether the PI film is coated on the whole peripheral edge portion of the soft-pack lithium battery 10A ', or the PI film 121A ' is coated on two opposite outer edge portions of the battery, and the other two opposite outer edge portions are coated with the coating film 122A ' (easy tearing). When the internal space of the battery compartment (i.e. the battery installation space) is fixed, the PI film or the wrapping film (the thickness of the PI film or the wrapping film is at least 50 μm) occupies more volume of the battery, so that the volume of the battery core in the battery is limited, thereby leading to limited volume and lower capacity of the battery core adopted when the battery is installed in the battery compartment of the electronic equipment.

Based on this, the embodiment of the application provides an electronic device, an insulating layer is disposed between an outer peripheral edge portion of a battery and an inner wall surface of a corresponding battery compartment to electrically isolate the battery and the battery compartment, and a first insulating portion of the insulating layer is formed by coating insulating paint on an outer side surface of the at least partial area of the outer peripheral edge portion or an inner side surface of the battery compartment, so that insulation between the outer peripheral edge portion of the battery and the inner side surface of the battery compartment can be achieved, and at the same time, the first insulating portion can be made thinner, for example, the thickness of the first insulating portion can be between 20 μm and 30 μm. Therefore, under the condition that the sizes (such as the length, the width and the depth) of the inner spaces of the battery bins are the same, larger installation space can be provided for the battery cells of the battery, so that the battery cells with larger volume can be adopted or the battery cells with larger quantity can be integrated, the capacity of the battery is improved, and the problem that the standby requirement of the electronic equipment cannot be met when the light and thin requirement is realized by the electronic equipment is solved.

The following specifically describes a specific structure of the electronic device of the present application with reference to the drawings.

First, it should be noted that the electronic device according to the embodiments of the present application may include, but is not limited to, portable electronic devices such as a mobile phone, a tablet (tablet personal computer), a wearable device, a netbook, a POS (Point of sales) machine, a personal digital assistant (personal digital assistant, PDA), a Virtual Reality (VR) device, an augmented reality (augmented reality, AR) device, a laptop (laptop computer), a notebook, a personal computer, and the like.

Referring to fig. 5a to 5c, an electronic device is taken as an example of a foldable electronic device, and fig. 5a is a schematic structural diagram of the foldable electronic device in an unfolded state according to an embodiment of the present application. Fig. 5b is a schematic structural view of the foldable electronic device shown in fig. 5a in a folded state. Fig. 5c is an exploded view of the foldable electronic device shown in fig. 5 a.

As shown in fig. 5a to 5b, for a foldable electronic device 1, the electronic device 1 may have different use states under different use scenarios. Fig. 5a shows the electronic device 1 in an unfolded state, where the unfolded angle of the electronic device 1 is 180 °, for example, and the electronic device 1 may implement a large screen display; fig. 5b shows the electronic device 1 in a folded state, in which the electronic device 1 is small and portable.

It should be noted that the angles illustrated in this embodiment allow for slight deviations. For example, the electronic device 1 shown in fig. 5a has a deployment angle of 180 ° means that the deployment angle may be 180 °, or may be about 180 °, such as 170 °, 175 °, 185 °, 190 °, or the like. The angles illustrated hereinafter are to be understood identically.

The electronic device 1 shown in fig. 5a and 5b is a foldable electronic device, and the electronic device includes two parts rotatable with respect to each other, and when the two parts are rotated to be coplanar, the electronic device 1 is in an unfolded state (as shown in fig. 5 a), and when the two parts are rotated to be stacked on each other, the electronic device 1 is in a folded state (as shown in fig. 5 b). In other embodiments, the electronic device 1 may be a mobile phone capable of being folded multiple times (more than two times), where the electronic device 1 may include multiple portions that are sequentially connected in a rotating manner, two adjacent portions may be relatively far apart to be unfolded to a folded state, and two adjacent portions may be relatively close to be folded to a folded state.

As shown in fig. 5c, the electronic device 1 includes a housing assembly 100 and a folding screen 12, the folding screen 12 is supported and connected on a side surface of the housing assembly 100, and a side surface of the folding screen 12 facing away from the housing assembly 100 is a display surface (not shown in the drawing) thereof, and the display surface is used for displaying information and providing an interactive interface for a user. The present embodiment defines the display surface of the folding screen 12 as the front surface thereof, and defines the other side surface of the folding screen 12 opposite to the front surface as the rear surface thereof, that is, the front surface of the folding screen 12 is exposed outside the housing assembly 100, and the rear surface of the folding screen 12 faces the housing assembly 100 and is connected to the housing assembly 100. Accordingly, a side surface of the housing assembly 100 facing the folding screen 12 is defined as a front surface of the housing assembly 100, and a side surface of the housing assembly 100 facing away from the folding screen 12 is defined as a rear surface of the housing assembly 100.

In this embodiment, the folding screen 12 may be, but is not limited to, an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a mini-led (mini organic light-emitting diode) display screen, a micro-led (micro organic light-emitting diode) display screen, a micro-organic light-emitting diode (micro organic light-emitting diode) display screen, or a quantum dot light-emitting diode (quantum dot light emitting diodes, QLED) display screen, etc.

The folding screen 12 may include a first screen portion 121, a second screen portion 122, and a foldable portion 123, the foldable portion 123 being located between the first screen portion 121 and the second screen portion 122. During use of the electronic device 1, the first screen portion 121 and the second screen portion 122 are kept in a flat state all the time, and the foldable portion 123 may be bent to change an included angle between the first screen portion 121 and the second screen portion 122, so that the foldable screen 12 is folded or unfolded along with the movement of the housing assembly 100, so as to switch the electronic device 1 between the folded state and the unfolded state.

Illustratively, in the folding screen 12, at least the foldable portion 123 is made of a flexible material so that the foldable portion 123 is bendable. The first screen portion 121 and the second screen portion 122 may be made of a flexible material, may be made of a rigid material, and may be made of a flexible material, which is not limited in this embodiment.

The folding screen 12 is switchable between an unfolded state and a folded state by the housing assembly 100. As shown in connection with fig. 5a and 5c, when the folding screen 12 is in the unfolded state, the first screen portion 121 and the second screen portion 122 are in the unfolded state relatively far away, the foldable portion 123 is in the flattened state in which no bending occurs, and the first screen portion 121, the second screen portion 122 and the foldable portion 123 are oriented identically and in the coplanar state. At this time, the included angle between the first screen portion 121 and the second screen portion 122 is 180 °, and the folding screen 12 can realize a large screen display, so that richer information can be provided for the user, and better use experience is brought to the user.

As shown in connection with fig. 5b, when the folding screen 12 is in the folded state, the first screen portion 121 and the second screen portion 122 are relatively laminated, the foldable portion 123 is in the folded state, and the folding angle of the foldable portion 123 is, for example, 180 °. At this time, the electronic apparatus 1 is small in size and convenient to carry and store.

It should be noted that, the electronic device 1 shown in the drawings is an out-folded electronic device, and in the folded state, the first screen portion 121 and the second screen portion 122 of the folding screen 12 are opposite, the housing assembly 100 is located between the first screen portion 121 and the second screen portion 122, and the folding screen 12 is enclosed outside the housing assembly 100 and is visible to a user. When the out-folding electronic device is in the folded state, the folding screen 12 is exposed, and the display function can be realized by using the folding screen 12, so that the display screen is not required to be additionally arranged on the back surface of the shell assembly 100 in order to realize the display function of the electronic device 1 in the folded state.

In other examples, the electronic device 1 may also be an in-folded electronic device, where the first screen portion 121 and the second screen portion 122 of the folding screen 12 are relatively attached in the folded state, the foldable portion 123 may be folded, and the housing assembly 100 is protected outside the folding screen 12, so as to prevent the folding screen 12 from being scratched by a hard object. If the inward folding electronic device needs to realize the display function in the folding state, a display screen can be additionally arranged on the back surface of the shell, and the electronic device 1 can realize the display function by means of the display screen in the folding state.

In addition, in some embodiments, the electronic device 1, especially an in-folded electronic device, may hover at an angle between the unfolded state and the folded state, and exemplary hover angles of the electronic device 1 may be 120 °, 130 °, 140 °, 150 °, or the like. Wherein the damping force provided by the housing assembly 100 may be relied upon to cause the housing assembly 100 to hover in a semi-deployed state between a folded state and a deployed state, the folded screen 12 staying with the housing assembly 100 in the semi-deployed state. At this time, the foldable portion 123 of the folding screen 12 is also in a folded state, and the folding degree of the foldable portion 123 is smaller than that in the folded state, the first screen portion 121 and the second screen portion 122 of the folding screen 12 are inclined relatively, and an angle between the first screen portion 121 and the second screen portion 122 is, for example, 120 °, 130 °, 140 °, 150 °, or the like.

The housing assembly 100 is used to support and secure the folding screen 12 and to move the folding screen 12 between the folded and unfolded positions. Referring to fig. 5c, the housing assembly 100 includes a first housing 10a, a second housing 10b, and a rotation shaft mechanism 10c, the rotation shaft mechanism 10c being connected between the first housing 10a and the second housing 10b, the first housing 10a and the second housing 10b being rotatably connected by the rotation shaft mechanism 10c, thereby effecting relative rotation between the first housing 10a and the second housing 10 b.

Wherein the first housing 10a supports and fixes the first screen portion 121 of the folding screen 12, the second housing 10b supports and fixes the second screen portion 122 of the folding screen 12, in other words, the first screen portion 121 of the folding screen 12 is fixedly connected to the first housing 10a, the second screen portion 122 of the folding screen 12 is fixedly connected to the second housing 10b, and the foldable portion 123 of the folding screen 12 is disposed corresponding to the rotation shaft mechanism 10 c. When the rotating shaft mechanism 10c drives the first casing 10a and the second casing 10b to rotate relatively, the first screen portion 121 and the second screen portion 122 of the folding screen 12 change the orientation, and the foldable portion 123 of the folding screen 12 bends or flattens along with the change of the orientation of the first screen portion 121 and the second screen portion 122.

The rotating shaft mechanism 10c drives the first casing 10a and the second casing 10b to rotate relatively, so that the electronic device 1 is switched between a folded state and an unfolded state. Wherein the first casing 10a and the second casing 10b may be rotated in a direction away from each other until they are coplanar, at which time the casing assembly 100 is in an unfolded state, and the folding screen 12 is in an unfolded state along with the unfolding of the casing assembly 100, as shown in fig. 5 a; the first casing 10a and the second casing 10b may also be rotated in directions approaching each other until they are stacked relatively, at which time the casing assembly 100 is in a folded state and the folding screen 12 is in a folded state with the folding of the casing assembly 100, as shown in fig. 5 b.

Illustratively, the first housing 10a may have a support surface facing the first screen portion 121 of the folding screen 12, the first screen portion 121 of the folding screen 12 being attached to the support surface of the first housing 10a, e.g., the first screen portion 121 of the folding screen 12 being adhered to the support surface of the first housing 10 a. Similarly, the second housing 10b may have a support surface facing the second screen portion 122 of the folding screen 12, the second screen portion 122 of the folding screen 12 being attached to the support surface of the second housing 10b, e.g., the second screen portion 122 of the folding screen 12 being adhered to the support surface of the second housing 10 b.

In addition, each of the first case 10a and the second case 10b may have an accommodation space in which some functional devices (not shown in the drawing) of the electronic apparatus 1 are mounted, for example, some devices for mounting a circuit board, a battery, an image pickup module, a microphone, a speaker, and the like in the accommodation space. For example, circuit boards may be provided in both the first case 10a and the second case 10b, and electrical connection between devices in both cases may be achieved through the circuit boards in both cases; the battery for supplying power to the device may be provided only in the first casing 10a or the second casing 10b, or the battery may be provided in both the first casing 10a and the second casing 10 b; as for other devices such as an image pickup module, a microphone, a speaker, and the like, they may be provided intensively in the first casing 10a or the second casing 10b, or some devices may be provided in the first casing 10a and some devices may be provided in the second casing 10 b.

The first casing 10a and the second casing 10b may each include a middle frame (not shown in the drawings) and a rear cover (not shown in the drawings), the middle frame is connected between the folding screen 12 and the rear cover, a side surface of the middle frame facing the folding screen 12 forms the above-mentioned supporting surface, the folding screen 12 may be attached to the side surface of the middle frame, the rear cover is connected to a side of the middle frame facing away from the folding screen 12, the middle frame and the rear cover enclose together to form an accommodating space for mounting devices, a battery compartment is provided in the accommodating space, and a battery is mounted in the battery compartment.

It should be understood that the battery may be a battery compartment installed in the accommodating space of the first housing 10a, or may be a battery compartment installed in the accommodating space of the second housing 10b, which may be specifically selected according to practical design, and the embodiment of the present application does not make a unique requirement.

The electronic device may further comprise a power management module (not shown in the figures) electrically connected between the battery and the electrical consumer. The power management module is used for receiving the input of the battery and discharging the electric device to supply power to the electric device. The power management module can also be used for monitoring parameters such as capacity, charge and discharge cycle times, health state (electric leakage, impedance) and the like of the battery.

The electronic device further comprises a charge management module (not shown in the figures) electrically connected between the charger and the battery. The charge management module is to receive a charge input from a charger. The charger may be a wireless charger or a wired charger. In some wired charging embodiments, the charge management module may receive a charging input of the wired charger through a universal serial bus (universal serial bus, USB) interface. In some wireless charging embodiments, the charging management module may receive wireless charging input through a wireless charging coil of the electronic device. The power management module and the charging management module may be integrated into one body or may be separately provided, which is not particularly limited herein.

The following specifically describes a fitting structure of one of the first case 10a and the second case 10b with the battery as an example. Of course, it will be appreciated by those skilled in the art that the other housing and the battery mounted thereto may also employ the mating structure described below.

Referring to fig. 6a, fig. 6a-1, fig. 6a-2, fig. 6a is a schematic diagram of a partial structure of an electronic device 1 according to an embodiment of the present application. FIG. 6a-1 is a schematic view of the cross-section A-A of FIG. 6 a. FIG. 6a-2 is a schematic view of the structure of section B-B of FIG. 6 a.

As shown in fig. 6a, 6a-1, and 6a-2, the electronic device 1 includes a housing 10 (the housing 10 is a first housing 10a or a second housing 10 b) and a battery 20. The housing 10 is provided with a battery compartment 11, and the battery 20 is mounted in the battery compartment 11. The bottom surface 210B (see fig. 8 a) of the battery 20 faces the bottom surface 112 of the battery compartment 11, the outer side surface 210A (see fig. 8 a) of the battery faces the inner side surface 111 of the battery compartment 11, the battery 20 has an outer peripheral edge portion 21, the outer side surface of the outer peripheral edge portion 21 constitutes the outer side surface 210A of the battery 20, and the bottom surface of the outer peripheral edge portion 21 constitutes a part of the bottom surface 210B of the battery.

The structure and the specific formation of the battery compartment 30 are not limited. In one example, the housing 10 includes a center frame, a portion of the bottom plate of the center frame constituting the bottom wall of the battery compartment, and the side wall of the battery compartment protruding from the surface of the bottom plate of the center frame facing the rear cover, a portion of the side wall of the battery compartment may be constituted by the outer frame of the center frame. It will be appreciated by those skilled in the art that the battery compartment may also be a recess in the surface of the bottom plate of the middle frame facing the rear cover, which is not limited in this application.

As shown in fig. 6a, 6a-1, and 6a-2, an insulating layer 30 is provided between at least a partial region of the outer peripheral edge portion 21 of the battery 20 along the circumferential direction thereof and the corresponding battery compartment 11 to electrically isolate the battery 20 from the battery compartment 11.

The insulating layer 30 may include a first insulating portion 31, the first insulating portion 31 being located between an outer side 210A of the at least partial region of the outer peripheral portion 21 and an inner side 111 of the corresponding battery compartment 11. In one embodiment, the first insulating portion 31 is formed by coating an insulating paint on the inner side 111 of the battery compartment 11. In other alternative embodiments, the first insulating portion 31 may be formed by coating an insulating paint on the outer side surface of the outer peripheral portion 21 of the battery 20, which is not limited in this application.

In the present application, the insulating layer 30 is provided between at least a partial region of the outer peripheral edge portion 21 of the battery 20 in the circumferential direction thereof and the corresponding battery compartment 11, and the first insulating portion 31 of the insulating layer 30 is formed by coating the insulating paint on the outer side surface of the at least partial region of the outer peripheral edge portion 21 of the battery 20 or the inner side surface 111 of the battery compartment. This makes it possible to make the first insulating portion 31 thinner, for example, the thickness of the first insulating portion 31 may be between 20 μm and 30 μm, while achieving insulation between the outer peripheral edge portion 21 of the battery and the inner side surface 111 of the battery compartment. Or it can be understood that, compared with the conventional electronic device in which the insulating film (for example, PI film, or PI film and wrapping film that is easy to tear, the thickness of the insulating film is at least 50 μm) is wrapped around the entire outer peripheral edge of the battery, so that the outer peripheral edge 21 of the battery 20 and the inner side 111 of the battery compartment 11 are insulated, the insulating layer formed by coating the insulating paint replaces the insulating film wrapped around the outer peripheral edge of the battery in the conventional technology, and the volume occupied by the insulating layer 30 can be reduced. Therefore, under the condition that the sizes (such as the length, the width and the depth) of the inner space of the battery compartment 11 are the same, a larger installation space can be provided for the battery cells of the battery 20, so that the battery cells with larger volume can be adopted or the battery cells with larger number can be integrated, the capacity of the battery 20 is improved, and the problem that the standby requirement of the electronic equipment cannot be met when the light and thin requirement is met is solved.

The specific structure and shape of the battery 20 in the present application are not limited. In some examples, the structure may be a regular cube structure or an irregular cube structure, which is not limited in this application.

In one embodiment, please refer to fig. 7a to 8b, fig. 7a is a schematic structural diagram illustrating a view angle of a battery in an electronic device according to an embodiment of the present application. Fig. 7b is a schematic structural diagram of another view of the battery in the electronic device according to the embodiment of the present application. Fig. 8a is a schematic structural diagram of a view angle of the battery body and the protection plate assembly according to the embodiment of the present application. Fig. 8b is a schematic structural diagram of another view angle of the battery body and the protection plate assembly according to the embodiment of the present application.

The battery 20 may include a battery body 201 and a protection plate assembly 202. The battery body 201 has a first outer edge portion 211, a second outer edge portion 212, a third outer edge portion 213, and a fourth outer edge portion 214 that are connected end to end, the first outer edge portion 211 and the third outer edge portion 213 being disposed opposite each other in the first direction a, the second outer edge portion 212 and the fourth outer edge portion 214 being disposed opposite each other in the second direction B, the second outer edge portion 212 being provided as a power receiving portion of the battery body 201. The first direction A and the second direction B are perpendicular to each other and are perpendicular to the thickness direction of the battery respectively. In one example, the first direction a is parallel to the width direction of the battery 20 and the width direction of the electronic device 1, and the second direction B is parallel to the length direction of the battery 20 and the length direction of the electronic device 1.

The power receiving portion of the battery body 201 means that the battery body 201 is generally electrically connected to other components (for example, a main board of the electronic device 1) through the portion, and electrodes (including a positive electrode and a negative electrode) of the battery body 201 are disposed at the power receiving portion of the battery body 201, and the battery body 201 realizes current transmission with other components through the power receiving portion thereof, thereby realizing charging and discharging of the battery body 201.

The protection plate assembly 202 is disposed at a power receiving portion (i.e., the second outer edge portion 212) of the battery body 201, and the battery body 201 is connected with other components (e.g., a main board of the electronic device 1) through the protection plate assembly 202, in other words, the protection plate assembly 202 is connected with an electrode of the battery body 201, and the protection plate assembly 202 is electrically connected with other components, and current is transmitted between the battery body 201 and other components through the protection plate assembly 202, and the protection plate assembly 202 plays a role in protecting the battery body 201 during charging and discharging processes to prevent problems such as overcharge, overdischarge, and short circuit. The protective plate assembly 202 is provided at the second outer edge portion 212, and constitutes the outer peripheral edge portion 21 of the battery together with the first outer edge portion 211, the second outer edge portion 212, the third outer edge portion 213, and the fourth outer edge portion 214; the outer side surface of the first outer edge portion 211 and the outer side surface of the third outer edge portion 213 each constitute a part of the outer side surface of the battery, and the bottom surface of the first outer edge portion 211 and the bottom surface of the third outer edge portion 213 each constitute a part of the bottom surface 210B of the battery.

The battery body 201 includes a battery case 23 and a battery cell (not shown in the drawings), wherein an electrolyte is enclosed in the battery case 23, and the battery cell is positioned in the battery case 23 and immersed in the electrolyte. The protective plate assembly 202 is mounted to the battery case 23 and is electrically connected to the electrical terminals (e.g., positive tab 2012, negative tab 2013) of the battery cells. The outer side and bottom surfaces of the first outer edge portion 211 and the outer side and bottom surface of the third outer edge portion 213 are each formed by the outer surface of the battery case 23. The outer side and bottom surfaces of the first outer edge portion 211 and the outer side and bottom surface of the third outer edge portion 213 are each formed by the outer surface of the battery case 23.

In one embodiment, the battery case 23 has a mounting portion 230, and the mounting portion 230 constitutes part of the second outer edge portion 212. The protective plate assembly 202 is mounted on the mounting portion 230. The electrical terminals (e.g., positive tab 2012, negative tab 2013) of the electrical cells pass through the mounting portion 230 and extend out of the mounting portion 230 and are electrically connected to the protective plate assembly 202 by conductive members.

The battery case 23 refers to a part of the battery for packaging and protecting the battery cells, and includes, but is not limited to, an aluminum plastic film. The electrolyte is present in each gap of the bare cell inside the battery case and is used as a carrier for transmitting lithium ions in the battery. The electrolyte is generally prepared from high-purity organic solvent, electrolyte lithium salt, necessary additives and other raw materials under certain conditions and in a certain proportion.

One cell includes at least one positive tab 2012 and at least one negative tab 2013. The positive electrode tab 2012 can be connected to a current collector of a positive electrode plate in the battery cell in a welding manner, or can be formed by directly extending the current collector of the positive electrode plate. Similarly, the negative electrode tab 2013 may be connected to the current collector of the negative electrode plate in the battery cell by welding, or may be formed by directly extending the current collector of the negative electrode plate. The positive electrode tab 2012 is typically an aluminum strip. The negative electrode tab 2013 is typically nickel tape. In order to avoid short circuit between the tab and a metal layer (such as an aluminum layer in an aluminum plastic film) in the shell, a tab adhesive is generally coated at a portion of the tab penetrating through the shell so as to play a role in insulation and isolation.

The structure of the battery cell is not limited, and in some schemes, the battery cell can be a winding type battery cell, a lamination type battery cell, and the like.

The winding type battery cell is formed by overlapping and winding four layers of materials of a positive electrode plate, a diaphragm, a negative electrode plate and the diaphragm.

The laminated battery cell comprises positive pole pieces and negative pole pieces which are alternately stacked in sequence, and a diaphragm is arranged between the adjacent positive pole pieces and negative pole pieces. The positive electrode plate and the negative electrode plate both comprise a current collector and electrode materials coated on the current collector. The current collector of the positive electrode sheet is typically aluminum foil. The current collector of the negative electrode tab is typically copper foil. The diaphragm is used for separating the positive pole piece from the negative pole piece so as to prevent the two pole pieces from being in direct contact to generate short circuit. The diaphragm can be a diaphragm bag, can also be the diaphragm of folding along the Z style of calligraphy, can also be a plurality of monolithic diaphragms, this application does not limit the specific structural style of diaphragm in the naked electric core of lamination formula, as long as can insulating positive pole piece and negative pole piece. The material of the separator is typically a polyolefin porous membrane. Compared with a winding type battery cell, the lamination type battery cell has stronger quick charging capability, and better design flexibility of the shape and the lug position.

The structure of the tab is not limited and is used for leading out the electrode of the battery cell to the outside of the shell. Specifically, the tab for leading out the positive electrode of the battery cell is a positive electrode tab, and the tab for leading out the negative electrode of the battery cell is a negative electrode tab.

The protection board assembly 202 may include a printed circuit board 2022 and a flexible circuit board 2023, the printed circuit board 2022 is mounted on the mounting portion 230 of the battery case 23 by a protection board bracket 2021, and the positive tab 2012 and the negative tab 2013 of the battery cell are electrically connected to the printed circuit board 2022 by a conductive member (may be an FPC) so as to electrically connect the protection board assembly 202 with the battery cell. The printed circuit board 2022 has integrated thereon devices (not shown) for monitoring and controlling the state of the battery cells (charge-discharge state) to prevent the aforementioned problems of overcharging, overdischarging, short-circuiting, etc. of the battery cells. One end of the flexible wiring board 2023 is connected to the printed wiring board 2022, and the other end has an electrical terminal 2024, and electrical connection with other components (for example, a motherboard of the electronic apparatus 1) is achieved.

In some embodiments, in order to protect the protection plate assembly 202, the exterior of the protection plate assembly 202 may be further wrapped with a first insulating film 710, one side of the first insulating film 710 is connected to a surface of the mounting portion facing the rear cover, and the other side of the first insulating film 710 extends toward the battery body 201 and is connected to a top surface region of the battery body 201 after bypassing the top end of the protection plate assembly 202. A portion of the flexible wiring board 2023 protrudes beyond the first insulating film 710 so as not to limit deformation and movement of the flexible wiring board 210 by the first insulating film 710. The flexible circuit board 2023 may be attached to an outer surface of the first insulating film 710.

Illustratively, the first insulating film 710 may be a Mylar (Mylar) film, a PI film, or the like. The mylar film has good surface flatness, transparency, and mechanical flexibility, and by wrapping it around the location of the protective plate assembly 202, it can provide protection to the protective plate assembly 202, making the installation of the protective plate assembly 202 more stable. The first insulating film 710 wraps the positive electrode tab 2012 and the negative electrode tab 2013 after connection inside, and forms insulating isolation protection between the tab after connection and the battery compartment 11, so as to reduce the risk of short circuit of the tab after connection. Note that the second insulating film 720 and the third insulating film 730 mentioned below may be Mylar (Mylar) films, PI films, or the like.

It will be appreciated by those skilled in the art that the exterior of the protective plate assembly 202 may not be covered with the first insulating film 710, which is not limited in this application.

In some embodiments, the outer surface of the mounting part 230 of the battery case 23 may also wrap the second insulating film 720. The outer surface of the fourth outer edge portion 214 of the battery body 201 may also be wrapped around the third insulating film 730, that is, the third insulating film 730 may be wrapped around the outer surface of the battery case of the fourth outer edge portion 214. It will be appreciated by those skilled in the art that in other alternative embodiments, the second insulating film 720 and/or the third insulating film 730 may not be provided, which is not limited in this application.

Referring to fig. 9a to 9b, fig. 9a is a schematic diagram illustrating an arrangement of an insulating layer according to an embodiment of the present application. Fig. 9b is a schematic diagram of an arrangement of insulating layers in an embodiment of the present application. Schematic partial structure of a housing in an electronic device;

as will be understood from fig. 6a, 6a-1, 6a-2, 9a, 9b, the outer peripheral edge portion 21 of the battery 20 has an insulating layer 30 between at least a partial region thereof in the circumferential direction and the corresponding battery compartment 11, it is understood that the insulating layer 30 may be provided between one partial region (e.g., a partial outer edge portion of the first outer edge portion 211, the second outer edge portion 212, the third outer edge portion 213, and the fourth outer edge portion 214) of the outer peripheral edge portion 21 of the battery 20 in the circumferential direction thereof and the corresponding battery compartment 11, and an insulating film (e.g., the first insulating film 710, the second insulating film 720, the third insulating film 730 shown in fig. 7a to 7 b) may be provided between the other partial region of the outer peripheral edge portion 21 of the battery 20 in the circumferential direction thereof and the corresponding battery compartment 11; alternatively, the insulating layer 30 may be provided between all regions of the outer peripheral edge portion 21 of the battery 20 in the circumferential direction thereof and the corresponding battery compartment 11, which is not limited in this application.

The following is an illustration with reference to the accompanying drawings.

In one possible manner, as shown in fig. 6a-1, 6a-2, and 9a, the insulating layer 30 may be disposed between the first outer edge portion 211, the third outer edge portion 213, and the battery compartment 11 of the battery 20, that is, the first insulating layer 30A may be disposed between the first outer edge portion 211 and the battery compartment 11, and the third insulating layer 30C may be disposed between the third outer edge portion 213 and the battery compartment 11111. That is, the outer surfaces of the first outer edge portion 211 and the third outer edge portion 213 of the battery 20 do not need to be wrapped with an insulating film (e.g., mylar (Mylar) film or PI film).

In another implementation, as shown in fig. 6a-1, 6a-2, and 9b, an insulating layer 30 may be disposed between the first outer edge portion 211, the second outer edge portion 212, the third outer edge portion 213, and the battery compartment 11 of the battery 20. That is, a first insulating layer 30A is provided between the first outer edge portion 211 and the battery compartment 11, a second insulating layer 30B is provided between the second outer edge portion 212 and the battery compartment 11, and a third insulating layer 30C is provided between the third outer edge portion 213 and the battery compartment 11. All insulation layers 30 located on the battery compartment 11 are connected in sequence to form a U-shaped insulation structure. That is, the outer surfaces of the first outer edge portion 211, the second outer edge portion 212, and the third outer edge portion 213 of the battery 20 do not need to be wrapped with an insulating film. For example, the first insulating film 710 and the second insulating film 720 do not need to be wrapped around the outer surface of the second outer edge portion 212.

In still another embodiment, the insulating layer 30 may be provided between each of the first outer edge portion 211, the second outer edge portion 212, the third outer edge portion 213, the fourth outer edge portion 214, and the battery compartment 11 of the battery 20. That is, in addition to the above embodiment, the insulating layer 30 is also provided on the fourth outer edge portion 214. That is, the outer surfaces of the first outer edge portion 211, the second outer edge portion 212, the third outer edge portion 213, and the fourth outer edge portion 214 of the battery 20 do not need to be wrapped with an insulating film. For example, the first insulating film 710, the second insulating film 720 need not be wrapped around the outer surface of the second outer edge portion 212, and the third insulating film 730 need not be wrapped around the outer surface of the fourth outer edge portion 214.

In the above manner, the insulating layer 30 may be formed by coating an insulating paint on the inner surface of the battery compartment 11; the insulating layer 30 may be formed by coating an insulating varnish on the outer surface corresponding to the outer peripheral edge 21 of the battery 20. The present application is not limited in this regard.

As shown in fig. 6a-1, 6a-2, and 7a, the insulating layer 30 may also include both a first insulating portion 31 and a second insulating portion 32, the first insulating portion 31 being located between the outer side surface 210A of the at least partial region of the outer peripheral portion 21 and the inner side surface 111 of the corresponding battery compartment 11, the second insulating portion 32 being located between the bottom surface 210A of the at least partial region of the outer peripheral portion 21 and the bottom surface 112 of the corresponding battery compartment 11, and both the first insulating portion 31 and the second insulating portion 32 being formed by applying an insulating varnish. In some embodiments, it may be that the first insulating portion 31 is formed by coating an insulating paint on the inner side 111 of the battery compartment 11, and the second insulating portion 32 is formed by coating an insulating paint on the bottom 112 of the battery compartment 11.

The insulating paint is made of unsaturated resin or epoxy resin, and can be unsaturated resin or epoxy resin. The specific selection should be according to actual requirements, and the embodiment of the application does not make a unique requirement. The bottom surface 210B of the other portion of the battery 20 than the outer peripheral edge portion 21 is bonded and fixed to the bottom surface 112 of the corresponding battery compartment 11 by the adhesive portion 60. The bonding portion 60 may be a back adhesive or a bonding portion formed by curing glue. The adhesive portion 60 can also form insulation and protection between the battery 20 and the battery compartment 11.

The insulating layer 30 may also include only the first insulating portion 31, the first insulating portion 31 being located between the outer side face 210A of the at least partial region of the outer peripheral edge portion 21 and the inner side face 111 of the corresponding battery compartment 11, and the first insulating portion 31 being formed by coating insulating paint on the inner side face 111 of the battery compartment 11.

When the insulating layer 30 includes both the first insulating portion 31 and the second insulating portion 32, and both the first insulating portion 31 and the second insulating portion 32 are formed by coating insulating paint, the thickness of both the first insulating portion 31 and the second insulating portion 32 can be made to be between 20 μm and 30 μm. Compared with the conventional electronic device in which the entire outer peripheral edge portion of the battery is covered with an insulating film (for example, PI film, or PI film and a wrapping film that is easy to tear, the thickness of the insulating film is at least 50 μm), the insulation scheme between the outer peripheral edge portion 21 of the battery 20 and the inner side surface 111 of the battery compartment 11 can reduce the volume occupied by the insulating layer. Therefore, under the condition that the sizes (such as the length, the width and the depth) of the inner spaces of the battery bins are the same, larger installation space can be provided for the battery cells of the battery, so that the battery cells with larger volume can be adopted or the battery cells with larger quantity can be integrated, the capacity of the battery is improved, and the problem that the standby requirement of the electronic equipment cannot be met when the light and thin requirement is realized by the electronic equipment is solved.

In one implementation, the first insulating portion 31 may be formed by coating an insulating varnish on the outer side surface 210A of the outer peripheral portion 21 of the battery 20, and the second insulating portion 321 may also be formed by coating an insulating varnish on the bottom surface 210B of the battery 20 (as shown in connection with fig. 8 a).

In another implementation, as shown in fig. 6a-1 and 6a-2, the first insulating portion 31 may be formed by coating the corresponding inner side 111 of the battery compartment 11 with an insulating paint, and the second insulating portion 321 may also be formed by coating the bottom 112 of the battery compartment 11 with an insulating paint.

As shown in connection with fig. 6a-1 and 6a-2, the second insulating portion 32 also extends to the lower edge of the first insulating portion 31. The insulating layer 30 has an L-shaped cross section. Or it can be understood that the first insulating portion 31 and the second insulating portion 32 are distributed in an L shape. This can further enhance the insulating effect between the outer peripheral edge portion 21 of the battery 20 and the battery compartment 11, and in particular, can prevent the electronic apparatus 1 from being in a dropped state where the outer side surface 210A of the outer peripheral edge portion 21 of the battery 20 meets the bottom surface 210B (see fig. 8 a), collides with and directly electrically contacts the position where the inner side surface 111 of the battery compartment 11 meets the bottom surface 112.

The lower edge of the first insulating portion 31 refers to a side edge of the first insulating portion 31 near the bottom of the battery compartment 11.

Referring to fig. 10a to 10b, fig. 10a is a schematic partial structure of a housing of an electronic device according to an embodiment of the present application. FIG. 10b is a schematic view of section A-A of FIG. 10 a.

In some embodiments, the region of the bottom surface 112 of the battery compartment 11 where the second insulating portion 32 is formed has an inwardly recessed recess 110, with the second insulating portion 32 being located entirely within the recess 110.

Or it can be appreciated that the orthographic projection of the second insulating portion 32 on the bottom surface 112 of the battery compartment 11 overlaps the orthographic projection of the recess 110 on the bottom surface 112 of the battery compartment 11.

The bottom surface 112 of the recess 110 is also connected to the inner side 111 of the battery compartment 11. Or it can be appreciated that portions of the inner side 111 of the battery compartment 11 are also configured as portions of the sides of the recess 110. This can promote the bonding of the second insulating portion 32 of the insulating layer 30 with the bottom surface 112 of the battery compartment 11.

In addition, the second insulating portion 32 is entirely located within the recess 110 by having the recess 110 recessed inward in the region of the bottom surface 112 of the battery compartment 11 where the second insulating portion 32 is formed. This can further reduce the volume occupied by the second insulating portion 32 of the insulating layer 30, which is advantageous in that it can provide a larger installation space for the cells of the battery 20 in the case that the internal space dimensions (e.g., length, width, and depth) of the battery compartment 11 are the same, thereby enabling the use of a larger volume of cells or the integration of a larger number of cells, and improving the capacity of the battery 20.

The thickness of the second insulating portion 32 may be less than, equal to, or greater than the depth of the recess 110, as not limited in this application.

In one implementation, the thickness of the second insulating portion 32 is greater than the depth of the recess 110, i.e., the second insulating portion 32 protrudes from the bottom surface 112 of the battery compartment 11.

In some embodiments, the region of the bottom surface 112 of the battery compartment 11 where the second insulating portion 32 is formed is provided with a roughened surface.

In some embodiments, the thickness of the first insulating portion 31 may be 20 μm to 30 μm, and the thickness of the second insulating portion 32 may be 20 μm to 30 μm.

It is to be understood that the thickness of the first insulating portion 31 may be set to any value between 20 μm and 30 μm, and may be, for example, 20 μm, 25.5 μm, 30 μm, or the like. The thickness of the second insulating portion 32 may be set to any value between 20 μm and 30 μm, and may be, for example, 20 μm, 27.5 μm, 30 μm, or the like. The method is specifically set according to actual requirements, and the embodiment of the application does not make unique requirements.

Referring to fig. 11, fig. 11 is a diagram illustrating dimensions of a second insulating portion in an embodiment of the present application.

As shown in fig. 11, in some embodiments, the width W1 of the second insulating portion 32 between the first outer edge portion 211 and the battery compartment 11 of the battery is 5mm to 15mm, the width W2 of the second insulating portion 32 between the second outer edge portion 212 and the battery compartment 11 is 40mm to 60mm, and the widths W3 of the second insulating portion 32 between the third outer edge portion 213 and the battery compartment 11 are 5mm to 15mm.

The width W1 of the second insulating portion 32 between the first outer edge portion 211 of the battery and the battery compartment 11 may be set to any value between 5mm and 15mm, for example, 5mm, 10.5mm, 15mm, or the like. The width W2 of the second insulating portion 32 between the second outer edge portion 212 and the battery compartment 11 may be set to any value between 40mm and 60mm, for example, 40mm, 50.5mm, 60mm, or the like. The width W3 of the second insulating portion 32 between the third outer edge portion 213 and the battery compartment 11 may be set to any value between 5mm and 15mm, for example, 5mm, 10.5mm, 15mm, or the like. The method is specifically set according to actual requirements, and the embodiment of the application does not make unique requirements.

In some embodiments, the region of the inner side 111 of the battery compartment 11 where the first insulating portion 31 is formed is provided with a roughened surface. The roughened surface may be formed by a laser engraving process.

It should be appreciated that the roughened surface is not limited to being formed by a laser engraving process, but may be formed by a sand blasting process or the like. The embodiments of the present application do not make a unique requirement for this.

It should be noted that the structure of the battery and the battery compartment described above in this application is also applicable to non-foldable electronic devices. The following is a detailed description with reference to the accompanying drawings.

Referring to fig. 12a to 12b, fig. 12a is a schematic diagram illustrating an assembly structure of a non-foldable electronic device. Fig. 12b is an exploded view of a non-foldable electronic device.

As shown in fig. 12A, the electronic device 1 may include a display 12A and a housing 10. One side surface of the display screen 12A is used to display information and provide an interactive interface for a user, and typically the side surface of the display screen 12A is defined as its front surface and the other side surface of the display screen 12A opposite to its front surface is defined as its back surface. The casing 10 is disposed around the periphery and the back of the display screen 12A, and is used for supporting and fixing the display screen 12A, and the front of the display screen 12A is exposed outside the casing 10, so that a user can watch the display content of the display screen 12A or perform input operation on the electronic device 1. The display 12A and the housing 10 together define an accommodating space in which some components of the electronic apparatus 1 are disposed, for example, components such as a circuit board, a battery module, a camera module, a speaker module, and a microphone are disposed.

In general, a side surface on which the display screen 12A is located is defined as a front surface of the electronic apparatus 1, and the other side surface of the electronic apparatus 1 opposite to the front surface thereof is defined as a rear surface thereof. When each component in the electronic apparatus 1 is described below, the "front" of the component refers to a side surface of the component facing the front of the electronic apparatus 1, and the "back" of the component refers to a side surface of the component facing the back of the electronic apparatus 1, corresponding to the front and back of the electronic apparatus 1.

As shown in fig. 12b, the electronic device 1 further includes a rear cover 13, the rear cover 13 is located on the back surface of the electronic device 1, the display screen 12A is supported on the front surface of the housing 10, and the rear cover 13 is connected on the back surface of the housing 10.

The display screen 10 may be connected and fixed to the housing 10 by, for example, a frame adhesive. The edge of the rear cover 13 may overlap the edge of the case 10. And can be fixedly connected through frame glue.

A main board 40, a battery 20 and a camera module 50 are disposed in the accommodation space of the housing 10. A battery compartment 11 is formed in the accommodation space, and a battery 20 is provided in the battery compartment 11. The main board 40 is a core control part of the electronic device 1, and is typically integrated with a central processing unit (Central Processing Unit/Processor, CPU), a graphics Processor, and other devices, and the main board 40 is, for example, a printed circuit board (Printed circuitboards, PCB). The battery 20 is used for supplying power to the whole electronic device 1, the battery 20 can be electrically connected with the main board 40, and the battery 20 can supply power to other components through the electrical connection between the main board 40 and the other components. The camera module 50 is electrically connected to the motherboard 30, and the camera module 50 is used for capturing, transmitting video, capturing still images, and the like. In addition, other PCBs, for example, PCBs (not shown) electrically connected to the display 12A may be provided in the accommodation space in addition to the main board 40, and the other PCBs other than the main board 40 may be defined as sub-boards for convenience of explanation, and the sub-boards and the main board 40 may be connected by flexible circuit boards (Flexible Printed Circuit, FPC). Of course, other components not shown in the drawings, such as the aforementioned speaker module, microphone, and the like, may be provided in the accommodation space.

Additional advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein. While the description of the present application will be presented in conjunction with some embodiments, it is not intended that the features of this application be limited to only this embodiment. Rather, the purpose of the description presented in connection with the embodiments is to cover other alternatives or modifications, which may be extended by the claims based on the present application. The following description contains many specific details in order to provide a thorough understanding of the present application. The present application may be practiced without these specific details. Furthermore, some specific details are omitted from the description in order to avoid obscuring the focus of the application. It should be noted that the embodiments and features in the embodiments in the present application can be combined with each other without conflict.

It should be noted that in this specification, like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description of the present application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and can be, for example, fixedly connected, detachably connected, or integrally connected; can be a mechanical connection or an electrical connection; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in the light of the specific circumstances.

In the description of the present application, it should be understood that "electrically connected" in the present application may be understood as components in physical contact and in electrical conduction; it is also understood that the various components in the wiring structure are connected by physical wires such as printed circuit board (printed circuit board, PCB) copper foil or leads that carry electrical signals.

In the description of the present application, it should be noted that the mutual perpendicularity in the present application is not absolute perpendicularity, and that the approximate perpendicularity (for example, the included angle between two structural features is 89.9 °) due to the machining error and the assembly error is also within the range of the mutual perpendicularity in the present application. The mutual parallelism in this application is not absolute, but approximate parallelism due to machining errors and assembly errors (e.g., an angle between two structural features of 0.1 °) is also within the scope of mutual parallelism in this application. The present application is not particularly limited thereto.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.

Claims

1. An electronic device, comprising:

the shell is provided with a battery compartment;

wherein an insulating layer is provided between at least a partial region of the outer peripheral edge portion of the battery in the circumferential direction thereof and the corresponding battery compartment to electrically isolate the battery from the battery compartment;

and, the insulating layer includes a first insulating portion located between an outer side surface of the at least partial region of the outer peripheral portion and an inner side surface of the corresponding battery compartment, and the first insulating portion is formed by coating an insulating paint on the outer side surface of the at least partial region of the outer peripheral portion or the inner side surface of the battery compartment.

2. The electronic device according to claim 1, wherein the insulating layer further includes a second insulating portion located between the bottom surface of the at least partial region of the outer peripheral portion and the bottom surface of the corresponding battery compartment, and the second insulating portion is formed by coating an insulating paint on the bottom surface of the at least partial region of the outer peripheral portion or the bottom surface of the battery compartment.

3. The electronic device according to claim 2, wherein in the insulating layer formed on the battery compartment, the second insulating portion further extends to a lower edge of the first insulating portion;

alternatively, in the insulating layer formed on the outer peripheral portion of the battery, the second insulating portion may further extend to a lower edge of the first insulating portion.

4. The electronic apparatus according to claim 2, wherein a region of the bottom surface of the battery compartment in which the second insulating portion is formed is provided as a roughened surface;

5. The electronic device of claim 4, wherein a bottom surface of the recess is further connected to an inner side surface of the battery compartment.

6. The electronic device according to claim 2, wherein the first insulating portion has a thickness of 20 μm to 30 μm and the second insulating portion has a thickness of 20 μm to 30 μm.

7. The electronic device according to claim 1, wherein an upper edge of the first insulating portion extends to an edge of an opening of the battery compartment in a depth direction of the battery compartment.

8. The electronic device according to claim 1, wherein an area of the inner side surface of the battery compartment in which the first insulating portion is formed is provided with a roughened surface.

9. The electronic device of claim 8, wherein the roughened surface is formed by a laser engraving process.

10. The electronic apparatus according to any one of claims 1 to 9, wherein the insulating layer is provided between the entire area of the outer peripheral edge portion of the battery in the circumferential direction thereof and the corresponding battery compartment to form an annular insulating structure that is annularly provided to the outer peripheral edge portion of the battery.

11. The electronic device of any one of claims 1-9, wherein the battery comprises:

A battery body having first, second, third, and fourth outer edge portions connected end to end, the first and third outer edge portions being disposed opposite one another in a first direction, the second and fourth outer edge portions being disposed opposite one another in a second direction, and the second outer edge portion being provided as a power receiving portion of the battery body; wherein the first direction and the second direction are perpendicular to each other and are perpendicular to the thickness direction of the battery, respectively;

a protective plate assembly provided at the second outer edge portion and constituting an outer peripheral edge portion of the battery together with the first outer edge portion, the second outer edge portion, the third outer edge portion, and the fourth outer edge portion;

the outer side surface of the first outer edge part and the outer side surface of the third outer edge part form part of the outer side surface of the battery, the bottom surface of the first outer edge part and the bottom surface of the third outer edge part form part of the bottom surface of the battery, and the insulating layers are arranged between the corresponding parts of the first outer edge part and the second outer edge part of the battery and the battery compartment respectively.

12. The electronic device of claim 11, wherein the battery body comprises a battery housing and a battery cell, the battery housing having an electrolyte enclosed therein, the battery cell being located within the battery housing and immersed in the electrolyte;

the protective plate component is arranged on the battery shell and is electrically connected with the power receiving end of the battery cell;

and, the outer side and the bottom surface of the first outer edge portion and the outer side and the bottom surface of the third outer edge portion are each formed of the outer surface of the battery case.

13. The electronic device according to claim 11, wherein a portion between the second outer edge portion of the battery and the corresponding portion of the battery compartment is also provided with: the insulating layers are formed on the battery bin, and all the insulating layers on the battery bin are connected in sequence to form a U-shaped insulating structure.

14. The electronic device of claim 13, wherein when the insulating layer further comprises a second insulating portion, the second insulating portion between the first outer edge portion of the battery and the battery compartment has a width of 5mm to 15mm, the second insulating portion between the second outer edge portion and the battery compartment has a width of 40mm to 60mm, and the second insulating portion between the third outer edge portion and the battery compartment has a width of 5mm to 15mm.

15. The electronic device according to any one of claims 1 to 9, wherein the insulating varnish is made of an unsaturated resin or an epoxy resin.

16. The electronic device according to any one of claims 1 to 9, wherein a bottom surface of the battery other than the outer peripheral edge portion is bonded and fixed to a corresponding bottom surface of the battery compartment by an adhesive portion.