CN217883962U

CN217883962U - Flexible circuit board fixing structure and electronic equipment

Info

Publication number: CN217883962U
Application number: CN202222116896.2U
Authority: CN
Inventors: 赵连甲
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2022-08-11
Filing date: 2022-08-11
Publication date: 2022-11-22
Anticipated expiration: 2032-08-11

Abstract

The utility model relates to a flexible circuit board fixing structure and an electronic device, wherein the flexible circuit board fixing structure comprises a flexible circuit board and an installation positioning assembly; the flexible line way board includes at least two-layer plate body, and is adjacent two-layer at least part position has the clearance between the plate body, and is adjacent two-layer the part position interconnect of plate body leans on outer in order to form first laminating portion the plate body be formed with the position of first laminating portion with installation positioning component connects, first laminating portion is at the perpendicular to projection on the installation positioning component falls on the installation positioning component, and projected area is less than the area on installation positioning component's surface. The flexible circuit board fixing structure reduces the bending hardness of the flexible circuit board, so that the flexible circuit board is easy to bend, the bending radius of the flexible circuit board during bending is reduced, the width of the flexible circuit board after bending is smaller, and the flexible circuit board fixing structure cannot occupy the arrangement space of other parts.

Description

Flexible circuit board fixing structure and electronic equipment

Technical Field

The disclosure relates to the technical field of electronic equipment manufacturing, in particular to a flexible circuit board fixing structure and electronic equipment.

Background

Along with the development of electronic equipment, more and more electronic equipment that can fold has appeared, and electronic equipment need set up when folding to correspond can the folding flexible line way board realize circuit connection.

In the related art, the flexible circuit board occupies a large space after being bent, and can encroach on the arrangement space of other parts such as a battery and the like, so that the capacity of the battery is influenced, and the endurance of electronic equipment is influenced.

SUMMERY OF THE UTILITY MODEL

The present disclosure provides a flexible printed circuit board fixing structure and an electronic device, so as to solve the problems in the related art.

In order to achieve the above object, a first aspect of the present disclosure provides a flexible printed circuit board fixing structure, including a flexible printed circuit board and a mounting and positioning assembly;

the flexible line way board includes at least two-layer plate body, and is adjacent two-layer at least part position has the clearance between the plate body, and is adjacent two-layer the part position interconnect of plate body leans on outer in order to form first laminating portion the plate body be formed with the position of first laminating portion with installation positioning component connects, first laminating portion is at the perpendicular to projection on the installation positioning component falls on the installation positioning component, and projected area is less than the area on installation positioning component's surface.

Optionally, the end parts of the first ends of the adjacent two layers of the plate bodies are connected with each other to form a second attaching part.

Optionally, the flexible printed circuit board fixing structure further comprises a main board assembly, the second attaching portion can be electrically connected with the main board assembly, the main board assembly is arranged opposite to the mounting and positioning assembly, the main board assembly is connected with the outer portion of the board body, the first attaching portion is formed at the position, and each layer of the board body is located between the main board assembly and the mounting and positioning assembly.

Optionally, the mainboard subassembly includes the mainboard and compresses tightly the piece, compress tightly the piece connect in the mainboard, second laminating portion can with the mainboard electricity is connected, compress tightly the piece and keep away from the one side of mainboard and the outer plate body be formed with the position of first laminating portion is connected.

Optionally, the flexible printed circuit board fixing structure further includes a first connector and a second connector, the first connector is integrated with the main board, the second connector is integrated with the second attaching portion, and the first connector and the second connector can be connected or separated.

Optionally, the flexible printed circuit board fixing structure further includes a reinforcing member, the reinforcing member is connected to the second attaching portion, and the second connector and the reinforcing member are disposed on two sides of the second attaching portion.

Optionally, the first attaching portion is close to the second attaching portion, and the portion of the plate body between the first attaching portion and the second attaching portion is provided with the gap and can be bent.

Optionally, the end parts of the second ends of the adjacent two layers of plate bodies are connected with each other to form a third fitting part, and the third fitting part can be used for being connected with a screen, a camera module or a battery module.

Optionally, the installation positioning assembly includes setting element and connecting piece, the first face of setting element with lean on outer the plate body be formed with the position of first laminating portion is connected, first laminating portion is perpendicular to projection on the setting element falls on the setting element, and projected area is less than the area of the first face of setting element, the connecting piece connect in the second face of setting element, the setting element passes through the connecting piece can be connected with the center.

Optionally, the number of layers of the plate bodies is at least three, and a part of the position between two adjacent layers of the plate bodies is bonded through hot-pressing glue to form the first bonding portion.

The second aspect of the present disclosure further provides an electronic device, which includes a middle frame and the flexible printed circuit board fixing structure, where the mounting and positioning component of the flexible printed circuit board fixing structure is connected to the middle frame.

Optionally, an installation groove is formed in the inner wall of the middle frame, and the installation positioning assembly is located in the installation groove and connected with the groove bottom of the installation groove.

Above-mentioned technical scheme has the clearance through having between the adjacent two-layer plate body that sets up, can avoid producing the interact between the adjacent plate body to reduced the crooked hardness of flexible line board through the plate body constitution, makeed flexible line board crooked easily, reduced the bend radius when crooked, makeed the width of flexible line board after the bending less, thereby can not occupy the arrangement space of too much other parts. The projection area of the first laminating part arranged on the installation positioning component is smaller than the area of the installation positioning component, the area of the plate body limited by each layer of plate body after being connected with the installation positioning component can be reduced, the flexible circuit board beneficial to forming is bent, the bending radius of the flexible circuit board when the flexible circuit board is bent is also reduced, the width of the flexible circuit board after bending is smaller, and the arrangement space of other parts cannot be occupied. Can link together the partial position of plate body through first laminating portion to realize that whole flexible line way board is all fixed on installation positioning assembly, improve flexible line way board's the fixed effect of installation. In addition, the flexible circuit board fixing structure can also solve the problem that the board body is broken in the bending process by arranging the gap between the two adjacent layers of board bodies, and the service life of the flexible circuit board is prolonged.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

fig. 1 is a schematic structural diagram of a flexible printed circuit board fixing structure in an embodiment of the present disclosure.

Description of the reference numerals

1. Plate body, 2, second laminating portion, 3, reinforcement, 4, second connector, 5, first connector, 6, mainboard subassembly, 61, mainboard, 62, compress tightly the piece, 7, third laminating portion, 8, first laminating portion, 9, installation locating component, 91, setting element, 92, connecting piece, 10, clearance, 11, mounting groove, 12, center.

Detailed Description

The following detailed description of the embodiments of the disclosure refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, unless otherwise specified, the use of directional terms such as "upper, lower, left, and right" are generally defined as directions of the drawing figures of the drawings, and "inner and outer" refer to inner and outer of the relevant components. Furthermore, the terms "first," "second," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.

In the description of the present disclosure, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present disclosure can be understood in specific instances by those of ordinary skill in the art.

As shown in fig. 1, a first aspect of the present disclosure provides a flexible wiring board fixing structure including a flexible wiring board and a mounting positioning assembly 9.

The flexible circuit board comprises at least two layers of boards 1, at least part of the adjacent two layers of boards 1 are provided with gaps 10, part of the adjacent two layers of boards 1 are connected with each other to form a first attaching portion 8, the position of the outer board 1, which is provided with the first attaching portion 8, is connected with the mounting and positioning assembly 9, the projection of the first attaching portion 8 on the mounting and positioning assembly 9 perpendicular to the mounting and positioning assembly 9 falls on the mounting and positioning assembly 9, and the area of the projection is smaller than that of the surface of the mounting and positioning assembly 9.

The flexible circuit board can be bent, so that when the electronic equipment is folded, the flexible circuit board can be electrically connected under the required scene, and data signals can be transmitted. Wherein, set up clearance 10 in at least some position between two adjacent layers of plate bodies 1, can make every plate body 1 bend respectively for adjacent plate body 1 can not receive adjacent plate body 1's interact power when bending, thereby improved the flexible line way board when bending, because the too big and cracked problem appears in bending radius that appears of hardness. It is understood that when the flexible printed circuit board is bent, the bending radius is too large, which results in a large width occupied after bending, and thus occupies too much space for arranging other components.

Wherein, the outer plate body 1 is connected with the mounting and positioning assembly 9 at the position where the first fitting part 8 is formed, and the flexible circuit board can be fixed, so that the flexible circuit board is connected to the mounting and positioning assembly 9, and then is connected to the middle frame 12 through the mounting and positioning assembly 9, and the position of the flexible circuit board can be fixed. Meanwhile, the first attaching portions 8 are formed by mutually connecting partial positions of the adjacent two layers of plate bodies 1, the positions of the plate bodies 1 are connected together through the first attaching portions 8, the effect of strengthening the connecting positions of the outer plate bodies 1 and the installation positioning assemblies 9 can be achieved, meanwhile, each plate body 1 can be connected with the installation positioning assemblies 9, and the fixing strength of the flexible circuit board is improved.

Wherein, the projection of first laminating portion 8 on perpendicular to installation locating component 9 falls on installation locating component 9, and the area of projection is less than the area of installation locating component 9, can understand, first laminating portion 8 is in the direction of perpendicular to installation locating component 9, and the border of first laminating portion 8 is the inboard that is located the border of installation locating component 9 to the area of first laminating portion 8 is the area that is less than the surface of installation locating component 9.

The positioning assembly 9 can be used to connect with the middle frame 12, and can also be connected with other positions of the electronic device.

Among the above-mentioned technical scheme, have clearance 10 through having between the adjacent two-layer plate body 1 that sets up, can avoid producing interact between the adjacent plate body 1 to reduce the crooked hardness of the flexible line board that constitutes through plate body 1, make flexible line board crooked easily, reduced the bending radius when crooked, make the width of flexible line board after the bending less, thereby can not occupy the arrangement space of too much other parts. The projection area of the first attaching portion 8 on the installation positioning component 9 perpendicular to the installation positioning component 9 is smaller than the area of the installation positioning component 9, the area of the limitation of the plate body 1 on each layer of the plate body after the plate body 1 is connected with the installation positioning component 9 can be reduced, the flexible circuit board which is formed is beneficial to bending, the bending radius of the flexible circuit board during bending is also reduced, the width of the flexible circuit board after bending is smaller, and the arrangement space of other parts cannot be occupied. The first attaching portion 8 can connect the partial positions of the board body 1 together, so that the whole flexible circuit board is fixed on the mounting and positioning assembly 9, and the mounting and fixing effects of the flexible circuit board are improved. In addition, according to the fixing structure of the flexible circuit board, the gap 10 is formed between the two adjacent layers of the board bodies 1, the problem that the board bodies 1 are broken in the bending process can be solved, and the service life of the flexible circuit board is prolonged.

Alternatively, in one embodiment of the present disclosure, the end portions of the first ends of the adjacent two layers of plate bodies 1 are connected to each other to form the second fitting portion 2.

In the embodiment, the end portions of the first ends of the plate bodies 1 can be connected together to form the integral second attaching portion 2, so that the flexible circuit board can be conveniently connected with other parts, and the electric connection can be conveniently realized.

It should be noted that the length of the board body 1 may be set according to the actually designed connection position, wherein the position where the flexible circuit board is bent is between the second attaching portion 2 and the first attaching portion 8.

Optionally, in an embodiment of the present disclosure, the flexible printed circuit board fixing structure further includes a motherboard assembly 6, the second attaching portion 2 can be electrically connected to the motherboard assembly 6, the motherboard assembly 6 is disposed opposite to the mounting and positioning assembly 9, the motherboard assembly 6 is connected to the outer board body 1 at a position where the first attaching portion 8 is formed, and each layer of the board body 1 is located between the motherboard assembly 6 and the mounting and positioning assembly 9.

In this embodiment, the main board assembly 6 can be used for realizing electric control, the second attaching portion 2 can be connected with or separated from the main board assembly 6, and when the second attaching portion 2 is connected with the main board assembly 6, the second attaching portion 2 is electrically connected with the main board assembly 6, so that transmission of signal data can be realized.

In the present embodiment, the main board assembly 6 and the mounting and positioning assembly 9 are respectively disposed on both sides of the flexible printed circuit board at the position where the first bonding portion 8 is formed, so as to clamp the flexible printed circuit board at the position where the first bonding portion 8 is formed. It can be understood that the position of one outer plate 1 where the first attaching portion 8 is formed can be connected to the mounting positioning assembly 9, and the position of the other outer plate 1 where the first attaching portion 8 is formed can be connected to the main plate assembly 6.

Optionally, the connection area of the main board assembly 6 and the mounting and positioning assembly 9 with the position of the outer board body 1 where the first attaching portion 8 is formed may be larger than the area of the first attaching portion 8, so that the connection and fixing effects on the flexible circuit board can be improved.

Optionally, in an embodiment of the present disclosure, the main board assembly 6 includes a main board 61 and a pressing member 62, the pressing member 62 is connected to the main board 61, the second attaching portion 2 can be electrically connected to the main board 61, and one surface of the pressing member 62, which is far away from the main board 61, is connected to the outer board body 1 at the position where the first attaching portion 8 is formed.

Wherein, in this embodiment, compress tightly being connected at the back of 62 and mainboard 61, compress tightly 62 covers at the back of mainboard 61, compress tightly 62 mainly used and be connected with the surface of the plate body 1 that keeps to the outside, compress tightly through compressing tightly 62 and the contact of the plate body 1 that keeps to the outside, can be so that mainboard 61 and the plate body 1 that keeps to the outside keep the contact force, improve joint strength. The front surface of the main board 61 is a surface on which electronic components are mounted, and the back surface of the main board 61 is a surface on which the pins are fixed by soldering.

Optionally, in some examples, the pressing member 62 is a pressing foam to prevent scratching the outer plate body 1. In other examples, the pressing member 62 may be made of rubber or the like.

Optionally, in some examples, the pressing piece 62 is adhesively fixed to the outer plate body 1 by glue. Of course, other connection methods may be used.

Alternatively, in other embodiments, the back surface of the main plate 61 may also be directly bonded by an adhesive, and the outer plate 1 is contacted by the adhesive, and the outer plate 1 is protected by the adhesive.

Optionally, in an embodiment of the present disclosure, the flexible printed circuit board fixing structure further includes a first connector 5 and a second connector 4, the first connector 5 is integrated with the main board 61, the second connector 4 is integrated with the second attaching portion 2, and the first connector 5 and the second connector 4 can be connected or separated.

In the present embodiment, the first connector 5 and the second connector 4 can be connected or separated, and when the first connector 5 and the second connector 4 are connected to each other, the first connector 5 and the second connector 4 can be electrically connected, so that the second attaching portion 2 is electrically connected to the main board 61, and signal data transmission can be realized. When the first connector 5 and the second connector 4 are separated, the second bonding portion 2 and the main board 61 are also separated, and signal data transmission does not occur. It is understood that, in some examples, the first connector 5 and the second connector 4 may be connected when signal data transmission is required, and the first connector 5 and the second connector 4 may be separated when signal transmission is not required, and may be applied to a foldable electronic device.

In the present embodiment, the first connector 5 is integrated on the main board 61 by soldering, and the second connector 4 is integrated on the second bonding portion 2 by soldering, so that the connection strength can be improved and the electrical connection can be easily achieved. Of course, in other embodiments, the first connector 5 may be connected to the main board 61 by other means such as screws, and then connected by a flat cable. The second connector 4 may be connected to the second bonding portion 2 by another means such as screws, and then connected by a flat cable.

The first connector 5 and the second connector 4 can facilitate the connection and separation of the second attaching portion 2 and the main board 61, and can be better adapted to the folding and unfolding of the electronic device.

Optionally, in an embodiment of the present disclosure, the first connector 5 has a slot thereon, and the second connector 4 has a plug thereon, and the plug can be inserted into the slot.

Wherein, in this embodiment, the one end that second laminating portion 2 was kept away from to second connector 4 has the plug, and one of first connector 5 keeping away from mainboard 61 serves and has the slot, slot and plug adaptation to make things convenient for in the plug can the male slot, thereby make things convenient for first connector 5 and second connector 4's connection or separation.

Optionally, in an embodiment of the present disclosure, the flexible printed circuit board fixing structure further includes a reinforcing member 3, the reinforcing member 3 is connected to the second attaching portion 2, and the second connector 4 and the reinforcing member 3 are disposed on two sides of the second attaching portion 2 oppositely.

In the present embodiment, the reinforcing member 3 is used to reinforce the second attaching portion 2, so that the strength of the second attaching portion 2 is improved, and the second connector 4 on the second attaching portion 2 is connected to the first connector 5. In some examples, the reinforcing member 3 is a sheet, which may be a steel sheet, and the reinforcing member 3 is in surface-to-surface contact with the second attaching portion 2 to reinforce the whole second attaching portion 2, but may also be another metal sheet with certain strength. In some examples, the area of the stiffener 3 may be the same as the area of the second fitting 2, or may be slightly smaller than the area of the second fitting 2.

Optionally, in an embodiment of the present disclosure, the first attaching portion 8 is disposed close to the second attaching portion 2, and the adjacent two layers of plate bodies 1 have a gap 10 in a portion between the first attaching portion 8 and the second attaching portion 2 and can be bent, so that the second attaching portion 2 can be electrically connected to the motherboard assembly 6.

In the present embodiment, the plate body 1 between the first bonding portion 8 and the second bonding portion 2 is used for bending, and therefore, it can be understood that the length of the plate body 1 between the first bonding portion 8 and the second bonding portion 2 can be set according to a specific bending position. It will be appreciated that the first abutment 8 is located between the second abutment 2 and the third abutment 7.

Wherein, adjacent two-layer plate body 1 has the part that the clearance 10 can be better crooked lieing in between first laminating portion 8 and the second laminating portion 2, can be better avoid taking the space of arranging of too much other parts, improve plate body 1 simultaneously and take place bending fracture's problem. Of course, alternatively, the adjacent two layers of plate bodies 1 except for the first attaching portion 8, the second attaching portion 2 and the third attaching portion 7 may have the gap 10, and may be bent arbitrarily as required. Of course, there may be no gap 10 between the first attaching portion 8 and the third attaching portion 7, and the adjacent two layers of plate bodies 1 at this position are directly attached and connected, and may be specifically set according to actual needs, where there is no limitation.

Through being close to second laminating portion 2 with first laminating portion 8, the length of plate body 1 between first laminating portion 8 and the second laminating portion 2 that can reduce as far as to the width of reduction plate body 1 after the bending that can be better, thereby can be better avoid taking the arrangement space of too much other parts.

Optionally, in an embodiment of the present disclosure, the end portions of the second ends of the two adjacent layers of plate bodies 1 are connected to each other to form a third attaching portion 7, and the third attaching portion 7 can be used for being connected with a screen, a camera module or a battery module.

Wherein, the tip of the second end of every layer of plate body 1 can link together, forms a holistic third laminating portion 7, and third laminating portion 7 can make things convenient for flexible line way board and screen, the module of making a video recording or battery module to be connected to do benefit to and transmit signal data to screen, the module of making a video recording or battery module.

When the third attaching portion 7 is connected to the screen, the screen can be displayed and can be adapted to the folding or unfolding of the screen. It can be understood that, along with the folding or the expansion of screen, the flexible line way board can fold or expand correspondingly, can specifically set up the cooperation according to actual design, the folding or the expansion of adaptation screen that can be fine.

Alternatively, in some examples, when the screen is unfolded, the flexible printed circuit board is bent, and the first connector 5 and the second connector 4 in the above embodiments are connected, so that a large screen display can be realized, and when the screen is folded, the flexible printed circuit board is changed into a flat state, and when the first connector 5 and the second connector 4 in the above embodiments are separated, only a single screen display is needed.

When the third attaching portion 7 is connected with the camera module, the control of the camera module and the transmission of the shot images can be realized, the camera module can be suitable for a scene that the position where the camera module is arranged needs to be connected through a bent flexible circuit board, and the folding or unfolding of the electronic equipment can be adapted to.

It can be understood, along with electronic equipment's folding or expansion, whether relate to the module of making a video recording this moment and need use, the flexible line way board can correspond folding or expansion, specifically can set up the cooperation according to actual design, adaptation electronic equipment's that can be fine folding or the in service behavior of the module of making a video recording under the expansion condition.

Alternatively, in some examples, when the electronic device is in a folded state, when the camera module is not used, the flexible printed circuit board may be in a flat state, when the first connector 5 and the second connector 4 are separated in the above embodiment. When the electronic device is in the unfolded state, the camera module needs to be used, and the flexible printed circuit board can be in the bent state, at this time, the first connector 5 and the second connector 4 are connected in the above embodiment, so that the camera module is electrically connected with the main board 61. Of course, the matching mode of the camera module and the folding and unfolding of the electronic device can be set according to specific scenes, and thus, the camera module and the electronic device are not limited too much.

When third laminating portion 7 is connected with the battery module, can realize the signal transmission between battery module and the mainboard 61, the scene that the position that can be applicable to the battery module setting needs to be connected through crooked flexible line way board, also can adapt to folding or the expansion of electronic equipment certainly, specifically can select the adaptation according to the actual setting condition.

It should be noted that, the flexible circuit board fixing structure can also be used for being adapted to other parts which need to be bent and connected.

Optionally, in an embodiment of the present disclosure, the installation positioning assembly 9 includes a positioning element 91 and a connecting element 92, a first surface of the positioning element 91 is connected to a position of the outward board body 1 where the first attaching portion 8 is formed, a projection area of the first attaching portion 8 on the positioning element 91 is smaller than an area of the first surface of the positioning element 91, the connecting element 92 is connected to a second surface of the positioning element 91, and the positioning element 91 is connected to the middle frame 12 through the connecting element 92.

In the present embodiment, the connector 92 is laid on the second surface of the spacer 91, thereby improving the connection strength between the spacer 91 and the middle frame 12. It is understood that the area of the connecting member 92 is equal to the area of the second surface of the positioning member 91, so that the whole second surface of the positioning member 91 is connected to the middle frame 12, although in some examples, the area of the connecting member 92 may be slightly smaller than the area of the second surface of the positioning member 91.

Alternatively, in some examples, the positioning member 91 may be a plate-shaped structure, but the positioning member 91 may also be a block-shaped structure. In some examples, the connector 92 may be an adhesive portion, and the positioning member 91 is adhered to the middle frame 12 by the adhesive portion. Of course, in other examples, the connecting member 92 may also be a screw, so that the positioning member 91 is connected to the middle frame 12 through the screw, and in addition, the positioning member 91 may also be connected to the middle frame 12 through welding.

Wherein, the first face of setting element 91 is the one side of keeping away from center 12 for be connected with the plate body 1 that leans on outer, the first face of setting element 91 can be connected with the plate body 1 that leans on outer through the viscose. In some examples, the entire first surface of the positioning member 91 is adhered to the outer plate 1, and a projection area of the first attaching portion 8 perpendicular to the positioning member 91 is smaller than an area of the first surface of the positioning member 91.

The positioning member 91 is provided to facilitate fixing the flexible printed circuit board and the motherboard assembly 6, so that the flexible printed circuit board and the motherboard assembly are fixed on the middle frame 12.

Optionally, in an embodiment of the present disclosure, the number of layers of the plate bodies 1 is three, and a part of the position between two adjacent layers of plate bodies 1 is bonded by hot-pressing glue to form the first attaching portion 8. Through the hot-pressing glue that sets up for adjacent two-layer plate body 1 can directly carry out the hot pressing fixed, conveniently processes manufacturing. The number of layers of the board body 1 is three, which may implement different data transmission, and in other examples, the number of layers of the board body 1 may also be other numbers, which may be specifically set according to actual situations.

The second aspect of the present disclosure also provides an electronic device, which includes a middle frame 12 and the above-mentioned flexible printed circuit board fixing structure, wherein the mounting and positioning assembly 9 of the flexible printed circuit board fixing structure is connected to the middle frame 12.

Optionally, in an embodiment of the present disclosure, an installation groove 11 is formed in an inner wall of the middle frame 12, and the installation positioning component 9 is located in the installation groove 11 and connected to a groove bottom of the installation groove 11.

The positioning element 91 and the connecting element 92 in the above embodiment are both located in the installation groove 11, and the positioning element 91 is connected to the bottom of the installation groove 11 through the connecting element 92.

In the present embodiment, the connector 92 is connected to the bottom of the mounting groove 11, and the positioning member 91 is laid on the surface of the connector 92. In some examples, the notch of the mounting slot 11 is larger than the length and width of the positioning member 91 and the connecting member 92.

Optionally, in an embodiment of the present disclosure, the electronic device further includes a screen, and the third attaching portion 7 is electrically connected to the screen.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure as long as it does not depart from the gist of the present disclosure.

Claims

1. A flexible circuit board fixing structure is characterized by comprising a flexible circuit board and an installation positioning assembly;

2. The flexible printed circuit board fixing structure according to claim 1, wherein the end portions of the first ends of two adjacent layers of the board bodies are connected to each other to form a second fitting portion.

3. The flexible printed circuit board fixing structure according to claim 2, further comprising a main board assembly, wherein the second attaching portion is electrically connected to the main board assembly, the main board assembly is disposed opposite to the mounting and positioning assembly, the main board assembly is connected to an outer board at a position where the first attaching portion is formed, and each layer of board is located between the main board assembly and the mounting and positioning assembly.

4. The flexible printed circuit board fixing structure according to claim 3, wherein the main board assembly comprises a main board and a pressing member, the pressing member is connected to the main board, the second attaching portion can be electrically connected to the main board, and one surface of the pressing member, which is far away from the main board, is connected to the outer portion of the board body, where the first attaching portion is formed.

5. The flexible printed circuit board fixing structure according to claim 4, further comprising a first connector and a second connector, wherein the first connector is integrated with the main board, the second connector is integrated with the second attaching portion, and the first connector and the second connector can be connected or separated.

6. The structure of claim 5, further comprising a reinforcing member, wherein the reinforcing member is connected to the second attaching portion, and the second connector and the reinforcing member are oppositely disposed at two sides of the second attaching portion.

7. The structure of claim 2, wherein the first attaching portion is disposed close to the second attaching portion, and a portion of each of two adjacent layers of the board bodies between the first attaching portion and the second attaching portion has the gap and can be bent.

8. The fixing structure of the flexible circuit board according to claim 1, wherein the ends of the second ends of two adjacent layers of the board bodies are connected to each other to form a third joint portion, and the third joint portion can be used for being connected with a screen, a camera module or a battery module.

9. The flexible circuit board fixing structure according to claim 1, wherein the mounting and positioning assembly includes a positioning member and a connecting member, a first surface of the positioning member is connected to an outer portion of the plate body where the first attaching portion is formed, a projection of the first attaching portion on the positioning member perpendicular to the positioning member falls on the positioning member, and the area of the projection is smaller than that of the first surface of the positioning member, the connecting member is connected to the second surface of the positioning member, and the positioning member can be connected to the middle frame through the connecting member.

10. The fixing structure of the flexible circuit board according to any one of claims 1 to 9, wherein the number of the board bodies is at least three, and a part of the positions between two adjacent board bodies is bonded by thermocompression bonding to form the first bonding portion.

11. An electronic device comprising a middle frame and the flexible wiring board fixing structure according to any one of claims 1 to 10, wherein the mounting positioning member of the flexible wiring board fixing structure is attached to the middle frame.

12. The electronic device of claim 11, wherein an inner wall of the middle frame is provided with a mounting groove, and the mounting positioning component is located in the mounting groove and connected with a groove bottom of the mounting groove.