CN217363405U - Circuit board assembly and electronic equipment - Google Patents

Abstract

The application relates to the technical field of electronics, and provides a circuit board assembly and an electronic device. The circuit board assembly comprises a circuit board, a board-to-board connector and a crimping assembly; the board-to-board connector is connected with the first surface of the circuit board; the crimping component comprises a bracket and a reinforcing plate; the bracket is connected with the circuit board, a through hole is arranged on the bracket, and the board-to-board connector faces the through hole; the reinforcing plate is arranged on one side face, deviating from the circuit board, of the board-to-board connector, one part of the reinforcing plate is located in the projection of the through hole on the first surface, and the other part of the reinforcing plate is arranged between the support and the circuit board.

Description

Circuit board assembly and electronic equipment

Technical Field

The application belongs to the technical field of electronics, concretely relates to circuit board assembly and electronic equipment.

Background

In the related art, electronic devices such as mobile phones and tablet computers are generally connected between two or more circuit boards through board-to-board connectors.

In order to enhance the reliability of the connection between different circuit boards through the board-to-board connector, the board-to-board connector needs to be fixed to prevent the male connector of the board-to-board connector from loosening from the female socket. However, the current fastening structure for the board-to-board connector configuration is not reasonable in design, resulting in a larger lamination thickness of the circuit structure based on the board-to-board connector, which is not favorable for the light and thin design of the electronic device.

SUMMERY OF THE UTILITY MODEL

The application aims to provide a circuit board assembly and electronic equipment, and at least solves the problem that a circuit structure based on a board-to-board connector at present has a large laminated thickness.

In order to solve the technical problem, the present application is implemented as follows:

in a first aspect, an embodiment of the present application provides a circuit board assembly, including: the circuit board, the board-to-board connector and the compression joint assembly; the board-to-board connector is connected with the first surface of the circuit board; the crimping component comprises a bracket and a reinforcing plate; the bracket is connected with the circuit board, a through hole is formed in the bracket, and the board-to-board connector faces the through hole; the stiffening plate set up in the board deviates from a side of circuit board to the board connector, just a part of stiffening plate is located the through-hole is in the projection on the first surface, another part of stiffening plate set up in the support with between the circuit board.

According to a circuit board assembly provided by the embodiment of the application, the reinforcing plate comprises a first pressing part and a first fixing part; the first pressing part is connected with the first fixing part; the first pressing portion penetrates through the through hole, the first pressing portion is arranged on one side, away from the circuit board, of the board-to-board connector, and the first fixing portion is clamped between the support and the circuit board.

According to the circuit board assembly provided by the embodiment of the application, the vertical height of one side surface of the first pressing and holding part, which faces away from the circuit board, relative to the first surface is greater than or equal to the vertical height of one side surface of the bracket, which faces away from the circuit board, relative to the first surface.

According to an embodiment of the present application, in a direction perpendicular to the first surface, a projection area of the board-to-board connector on the first surface is located within a projection area of the first pressing portion on the first surface.

According to a circuit board assembly that this application embodiment provided, the stiffening plate still includes first connecting portion, first pressure hold the portion with the one end of first connecting portion is connected, the other end of first connecting portion with first fixed part is connected, first pressure hold the portion with first fixed part is parallel.

According to a circuit board assembly provided by the embodiment of the application, the bracket comprises a second pressing part and a second fixing part; the through hole is arranged on the second pressing part, the other part of the reinforcing plate is clamped between the second pressing part and the circuit board, and the second fixing part is detachably connected with the circuit board.

According to the embodiment of the application, the circuit board assembly further comprises: the retaining member, the second fixed part orientation one side of circuit board with the laminating of the first surface of circuit board, the second fixed part with the circuit board passes through the retaining member is connected.

According to the circuit board assembly provided by the embodiment of the application, the vertical height of one side surface of the second pressing part, which is far away from the circuit board, relative to the first surface of the circuit board is greater than the vertical height of one side surface of the second fixing part, which is far away from the circuit board, relative to the first surface of the circuit board;

the retaining member includes locking bolt, the second fixed part is equipped with first screw, the circuit board is equipped with the second screw, locking bolt's spiral shell head is located the second fixed part deviates from a side of circuit board, locking bolt's screw rod is worn to locate respectively first screw with in the second screw, just locking bolt's screw rod respectively with first screw with second screw threaded connection.

According to the circuit board assembly provided by the embodiment of the application, a plurality of openings are formed in the circuit board; the second fixing parts are arranged in a plurality of the openings in a penetrating mode one to one, one end, far away from the second pressing and holding part, of each second fixing part is abutted to the second surface of the circuit board, and the second surface is opposite to the first surface. According to a circuit board assembly provided by the embodiment of the application, the second fixing part comprises a connecting section and an abutting section; the second pressing and holding part is connected with one end of the connecting section, and the other end of the connecting section is connected with one end of the abutting section; the connecting section penetrates through the opening, and the abutting section abuts against the second surface of the circuit board.

In a second aspect, an embodiment of the present application provides an electronic device, including: the circuit board assembly of any embodiment is located in casing and the casing.

In the embodiment of the application, through constructing the through-hole on the support, can set up a part of stiffening plate in the region that corresponds the through-hole place, and be located the board and deviate from a side of circuit board to the board connector, when being connected with support and circuit board, can be fixed in between support and the circuit board with another part of stiffening plate, thereby when realizing fixing the stiffening plate through the support, directly adopt the stiffening plate to fasten the board connector, need not when fastening the board connector to the board, carry out the stromatolite setting to support and stiffening plate, ensure that the support does not occupy the fastening space of board to the board connector again in the direction of perpendicular to first surface, the frivolous design of circuit board subassembly has been realized.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic cross-sectional view of a prior art board-to-board connector based circuit board assembly;

fig. 2 is one of schematic top view structures of a circuit board assembly according to an embodiment of the present application;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2 according to an embodiment of the present application;

FIG. 4 is a schematic top view of the stand of FIG. 2 according to an embodiment of the present disclosure;

FIG. 5 is a front view schematic diagram of the stand of FIG. 2 according to an embodiment of the present application;

fig. 6 is a second schematic top view of a circuit board assembly according to an embodiment of the present application;

FIG. 7 is a cross-sectional view taken along line B-B of FIG. 6 according to an embodiment of the present application;

FIG. 8 is a schematic top view of the stent of FIG. 6 according to an embodiment of the present application;

fig. 9 is a front view schematic diagram of the bracket in fig. 6 according to an embodiment of the application.

Reference numerals:

100: a support; 200: soaking cotton; 300: reinforcing steel sheets; 400: a flexible circuit board; 500: a board-to-board connector; 600: a PCB board;

1: a circuit board; 2: a crimping assembly; 11: a second screw hole; 12: an opening; 21: a support; 22: a reinforcing plate; 23: a locking member; 201: a through hole; 211: a second pressure holding part; 212: a second fixed part; 2121: a first screw hole; 231: a connecting section; 232: an abutment section; 221: a first pressure holding part; 222: a first fixed part; 223: the first connecting portion.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The features of the terms first and second in the description and in the claims of the present application may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specified. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/", and generally means that the former and latter related objects are in an "or" relationship.

In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically 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 application can be understood in a specific case by those of ordinary skill in the art.

As shown in fig. 1, the conventional fixing structure for the board-to-board connector 500 includes a PCB 600, a bracket 100, and a reinforcing steel sheet 300. The board is to board connector 500 includes public head and female seat, and female seat welds on PCB board 600, and public head is pegged graft on female seat, and public head deviates from a side of female seat and pastes and has flexible circuit board 400 to PCB board 600 and flexible circuit board 400 realize portable ground communication connection through the board to board connector 500.

In order to prevent the flexible circuit board 400 from being detached from the male connector when being bent, the reinforcing steel sheet 300 is pressed on a side surface of the flexible circuit board 400 away from the male connector. In order to prevent the reinforcing steel sheet 300 from being displaced in use, and particularly prevent the reinforcing steel sheet 300 from being separated from between the bracket 100 and the flexible circuit board 400, a foam 200 is further provided between the reinforcing steel sheet 300 and the bracket 100.

In this way, in the above-described fixing structure for the board-to-board connector 500, the bracket 100, the foam 200, the reinforcing rigid plate 300, the flexible circuit board 400, the board-to-board connector 500, and the PCB 600 are sequentially stacked from top to bottom. After the two legs of the bracket 100 are fastened to the PCB 600 by the locking bolts, the middle region of the bracket 100 is directly pressed on the reinforcing steel sheet 300, and the board-to-board connector 500 is reliably fastened under the limiting and pressing actions of the bracket 100.

However, the above fastening structure for configuring the board-to-board connector 500 is not reasonable in design, and the stacked arrangement structure thereof generates a large stacked thickness, which is not favorable for the light and thin design of the electronic device.

As shown in fig. 2 to 9, to solve the above problem, an embodiment of the present invention provides a circuit board assembly and an electronic device.

As shown in fig. 2 to 9, according to a circuit board assembly of some embodiments of the present application, the circuit board assembly includes: circuit board 1, board-to-board connector 500 and crimping assembly 2. The circuit board 1 shown in this embodiment is a PCB.

The board-to-board connector 500 is connected with the first surface P1 of the circuit board 1; the crimping component 2 comprises a bracket 21 and a reinforcing plate 22; the bracket 21 is connected with the circuit board 1, a through hole 201 is arranged on the bracket 21, and the board-to-board connector 500 faces the through hole 201. Meanwhile, the reinforcing plate 22 is disposed on a side surface of the board-to-board connector 500 away from the circuit board 1, a portion of the reinforcing plate 22 is located in a projection of the through hole 201 on the first surface P1, and another portion of the reinforcing plate 22 is disposed between the bracket 21 and the circuit board 1. In order to realize convenient and fast fixing and mounting of the reinforcing plate 22, the embodiment may specifically clamp another portion of the reinforcing plate 22 between the bracket 21 and the circuit board 1.

Here, the board-to-board connector 500 shown in this embodiment includes a male connector and a female connector, the female connector is welded on the circuit board 1, the male connector is inserted into the female connector, and a side of the male connector facing away from the female connector is generally adhered with the flexible circuit board 400 electrically connected thereto, so that when the board-to-board connector 500 is fastened, a part of the reinforcing plate 22 can be pressed on the flexible circuit board 400 in this embodiment.

Thus, in the present embodiment, by configuring the through hole 201 on the support 21, a part of the reinforcing plate 22 can be disposed in the region corresponding to the through hole 201, and is located on a side surface of the board-to-board connector 500 away from the circuit board 1, when the support 21 is connected to the circuit board 1, another part of the reinforcing plate 22 can be fixed between the support 21 and the circuit board 1, so that the reinforcing plate 22 is directly adopted to fasten the board-to-board connector 500 while the support 21 is used to fix the reinforcing plate 22, and it is not necessary to stack the support 21 and the reinforcing plate 22 when the fastening plate is connected to the board connector 500, so as to ensure that the support 21 does not occupy the fastening space of the board-to-board connector 500 in the direction perpendicular to the first surface P1, thereby implementing the light and thin design of the circuit board assembly. Meanwhile, because the support 21 does not directly apply the pressing force to act on the board-to-board connector 500, the reinforcing plate 22 is directly clamped between the support 21 and the circuit board 1 in the embodiment, according to the actual fastening requirement, the pressing force on the support 21 directly acts on the reinforcing plate 22, when the reinforcing plate 22 is fixed, the reinforcing plate 22 is ensured not to shift relative to the circuit board 1, so that foam is not required to be arranged between the reinforcing plate 22 and the board-to-board connector 500 in the embodiment, the light and thin design of the circuit board assembly is realized, and the arrangement cost of the circuit board assembly is reduced.

It should be noted that, the board-to-board connector 500 shown in the present embodiment faces the through hole 201, it is understood that the vertical height of the end of the board-to-board connector 500 facing away from the circuit board 1 with respect to the first surface P1 is lower than the vertical height of the center of the through hole 201 with respect to the first surface P1, or the end of the board-to-board connector 500 facing away from the circuit board 1 protrudes into the through hole 201, or the vertical height of the end of the board-to-board connector 500 facing away from the circuit board 1 with respect to the first surface P1 is higher than the vertical height of the center of the through hole 201 with respect to the first surface P1. Accordingly, the present embodiment can adaptively arrange the reinforcing plate 22 according to the position of the end of the board-to-board connector 500 facing away from the circuit board 1 with respect to the through hole 201, and the vertical height of the side surface of the reinforcing plate 22 facing the board-to-board connector 500 with respect to the first surface P1 can be higher than the vertical height of the center of the through hole 201 with respect to the first surface P1, lower than the vertical height of the center of the through hole 201 with respect to the first surface P1, and equal to the vertical height of the center of the through hole 201 with respect to the first surface P1, while ensuring that a portion of the reinforcing plate 22 is located within the projection of the through hole 201 on the first surface P1.

In some embodiments, as shown in fig. 3 and 7, in order to facilitate the clamping and fixing of the reinforcing plate 22 and ensure the fixing of the plate-to-plate connector 500 based on the reinforcing plate 22, the reinforcing plate 22 shown in this embodiment includes a first pressing portion 221 and a first fixing portion 222, and the first pressing portion 221 is connected to the first fixing portion 222.

The present embodiment may be adapted to the distribution structure of the board-to-board connector 500 with respect to the bracket 21, and the vertical height of the first pressing portion 221 with respect to the first surface P1 of the circuit board 1 is set to be greater than the vertical height of the first fixing portion 222 with respect to the first surface P1 of the circuit board 1, so that the first pressing portion 221 and the first fixing portion 222 form a first height difference along the direction perpendicular to the first surface P1.

Meanwhile, in the present embodiment, the first pressing portion 221 is disposed through the through hole 201, the first pressing portion 221 is disposed on a side of the board-to-board connector 500 away from the circuit board 1, and the first fixing portion 222 is clamped between the bracket 21 and the circuit board 1.

The specific location of the first pressing portion 221 is determined according to the relative height between the board-to-board connector 500 and the bracket 21 along the direction perpendicular to the first surface P1. In practical applications, the first pressing portion 221 shown in this embodiment may be disposed in the through hole 201, or disposed on a side of the bracket 21 away from the circuit board 1. Meanwhile, when the first fixing portion 222 is clamped between the bracket 21 and the circuit board 1, the first pressing portion 221 presses the board-to-board connector 500 on the side away from the circuit board 1, and a pressing area of the first pressing portion 221 on the board-to-board connector 500 may be larger than a surface area of the board-to-board connector 500 on the side away from the circuit board 1, or smaller than a surface area of the board-to-board connector 500 on the side away from the circuit board 1, which is not specifically limited herein.

Here, in the present embodiment, based on the arrangement of the first pressing portion 221 and the first fixing portion 222, after the bracket 21 is fastened on the circuit board 1, the first fixing portion 222 of the reinforcing plate 22 can be directly clamped between the bracket 21 and the circuit board 1, and the first pressing portion 221 forms pressing on the side of the board-to-board connector 500 away from the circuit board 1, so as to fix the board-to-board connector 500 and prevent the male connector of the board-to-board connector 500 from being separated from the female socket.

In a practical arrangement, in order to ensure reliable fixing of the reinforcing plate 22 by the bracket 21, the first fixing portions 222 shown in the present embodiment may be provided in plurality, and the plurality of first fixing portions 222 are respectively connected to the first pressing portions 221.

In some examples, as shown in fig. 4, the first fixing portions 222 shown in the present embodiment are provided in two, two first fixing portions 222 are respectively provided on opposite sides of the board-to-board connector 500 along the length direction of the board-to-board connector 500, and each first fixing portion 222 is clamped between the bracket 21 and the circuit board 1.

In some embodiments, the vertical height of the side of the first pressing part 221 facing away from the circuit board 1 relative to the first surface P1 is greater than or equal to the vertical height of the side of the bracket 21 facing away from the circuit board 1 relative to the first surface P1.

Specifically, the present embodiment is based on the arrangement of the relative heights of the first pressure holding portion 221 and the bracket 21, prevents the bracket 21 and the reinforcing plate 22 from forming a stacked structure on the upper side of the board-to-board connector 500, and achieves the effect of avoiding the bracket 21 from occupying the fastening space of the board-to-board connector 500 in the direction perpendicular to the first surface P1 as much as possible.

In some embodiments, in order to ensure the clamping area of the first clamping portion 221 to the board-to-board connector 500 and achieve a better fastening effect on the board-to-board connector 500, the present embodiment further provides that the projection area of the board-to-board connector 500 on the first surface P1 is located in the projection area of the first clamping portion 221 on the first surface P1 along the direction perpendicular to the first surface P1.

Here, in the present embodiment, the pressing area of the first pressing portion 221 on the board-to-board connector 500 may be greater than or equal to the surface area of the side of the board-to-board connector 500 away from the circuit board 1, so that the first pressing portion 221 may completely press the side of the board-to-board connector 500 away from the circuit board 1, and the fixing effect on the board-to-board connector 500 is ensured.

Here, in order to facilitate the assembly of the reinforcing plate 22 between the board-to-board connector 500 and the bracket 21, the present embodiment may be further arranged such that, in a direction perpendicular to the first surface P1, a projection area of the first pressing portion 221 on the first surface P1 is located within a projection area of the opening 12 on the bracket 21 on the first surface P1.

In some embodiments, in order to ensure the stability of the bracket 21 and the circuit board 1 for clamping the reinforcing plate 22 and pressing the reinforcing plate 22 on the board-to-board connector 500, the embodiment arranges the first pressing portion 221 of the reinforcing plate 22 in parallel with the first fixing portion 222, and connects the first pressing portion 221 and the first fixing portion 222 through the first connecting portion 223.

As shown in fig. 3 and 7, the first pressing portion 221 of the present embodiment is connected to one end of the first connecting portion 223, and the other end of the first connecting portion 223 is connected to the first fixing portion 222. The first pressing portion 221 and the first fixing portion 222 are perpendicular to the first connecting portion 223. Of course, in this embodiment, the first connecting portion 223 may be disposed obliquely with respect to the first pressing portion 221 and the first fixing portion 222, respectively. Based on the solution shown in the above embodiment, as shown in fig. 3 to fig. 9, in order to fix the bracket 21 on the circuit board 1 and to fix the reinforcing plate 22 based on the bracket 21 and the circuit board 1, the bracket 21 shown in this embodiment includes a second pressing portion 211 and a second fixing portion 212; the through hole 201 is disposed on the second pressing portion 211, the other portion of the reinforcing plate 22 is clamped between the second pressing portion 211 and the circuit board 1, and the second fixing portion 212 is detachably connected to the circuit board 1.

In this embodiment, the second fixing portion 212 of the bracket 21 can be detachably connected to the circuit board 1 by a plurality of fixing methods such as a bolt locking assembly, a fastening structure, and a clamping structure.

In a practical arrangement, in order to ensure that the bracket 21 is reliably fixed to the circuit board 1, a plurality of second fixing portions 212 may be provided, and the plurality of second fixing portions 212 are respectively connected to the second pressing portions 211.

In some examples, as shown in fig. 5 and 9, the second fixing portions 212 shown in the present embodiment are provided in two, and the two second fixing portions 212 are respectively provided on opposite sides of the board-to-board connector 500 along the length direction of the board-to-board connector 500.

In some examples, as shown in fig. 3 to 5, in order to ensure the reliability of the connection between the second fixing portion 212 of the bracket 21 and the circuit board 1, the present embodiment may attach the first surface P1 of the circuit board 1 to a side surface of the second fixing portion 212 facing the circuit board 1, and connect the second fixing portion 212 and the circuit board 1 through the locking member 23.

The locking member 23 may be a locking pin, a screw, a bolt, etc. known in the art, and is not particularly limited herein.

When the board-to-board connector 500 is actually fixed, the reinforcing plate 22 may be placed on the board-to-board connector 500, and when the second fixing portion 212 of the bracket 21 is connected to the circuit board 1, a clamping gap may be formed between the second pressing portion 211 of the bracket 21 and the circuit board 1, and the first fixing portion 222 of the reinforcing plate 22 may be clamped based on the clamping gap to fix the reinforcing plate 22 to the first surface P1 of the circuit board 1.

Thus, based on the connection structure of the bracket 21 and the circuit board 1, the reinforcing plate 22 can be conveniently fixed, and the reinforcing plate 22 further fixes the board-to-board connector 500, so that the operation is simple and convenient.

In some embodiments, as shown in fig. 3, the vertical height of the side of the second pressing portion 211 facing away from the circuit board 1 relative to the first surface P1 is greater than the vertical height of the side of the second fixing portion 212 facing away from the circuit board 1 relative to the first surface P1.

Here, the present embodiment can make the second clamping portion 211 and the second fixing portion 212 form a second height difference in a direction perpendicular to the first surface P1 based on the arrangement of the relative heights of the second clamping portion 211 and the second fixing portion 212 on the bracket 21, so that when the board-to-board connector 500 is fixed, the occupation of the fastening space of the bracket 21 on the board dockee in the direction perpendicular to the first surface P1 can be reduced as much as possible.

In some embodiments, as shown in fig. 3, in order to facilitate the fixed mounting of the second fixing portion 212 on the circuit board 1, the locking member 23 shown in this embodiment is preferably a locking bolt, the second fixing portion 212 is provided with a first screw hole 2121, the circuit board 1 is provided with a second screw hole 11, a screw head of the locking bolt is provided on a side surface of the second fixing portion 212 facing away from the circuit board 1, screws of the locking bolt respectively penetrate through the first screw hole 2121 and the second screw hole 11, and the screws of the locking bolt are respectively in threaded connection with the first screw hole 2121 and the second screw hole 11.

In this way, when fixing the second fixing portion 212, the operator only needs to tighten the locking bolt to securely fix the bracket 21 to the circuit board 1 by the threaded connection between the locking bolt and each of the first screw hole 2121 and the second screw hole 11.

Wherein, because the height that the second pressure is held a side 211 and is kept away from circuit board 1 is greater than the height that the side that the second fixed part 212 is kept away from circuit board 1 for the height of circuit board 1, this embodiment is through locating the spiral shell head of locking bolt the side that the second fixed part 212 is kept away from circuit board 1, also can reduce the spiral shell head of locking bolt to a certain extent and carry out fastening space's occupation.

In some examples, as shown in fig. 7 to 9, in order to ensure convenience of connection between the second fixing portion 212 of the bracket 21 and the circuit board 1, the present embodiment is provided with a plurality of openings 12 on the circuit board 1, and positions of the plurality of openings 12 on the circuit board 1 are located on one side of mounting positions of the board-to-board connector 500 on the circuit board 1; the second fixing portions 212 are disposed in a plurality of openings 12, the second fixing portions 212 are disposed through the openings 12 one by one, one end of each second fixing portion 212 away from the second pressing portion 211 abuts against the second surface P2 of the circuit board 1, and the second surface P2 is opposite to the first surface P1.

In practical applications, the bracket 21 shown in this embodiment may be a structural member capable of generating a certain elastic deformation, for example, the bracket 21 may be a stainless steel plate, a plastic plate, or the like. When fixing the board-to-board connector 500, an operator only needs to apply a certain external force to the bracket 21, so that the plurality of second fixing portions 212 on the bracket 21 can be relatively penetrated through the plurality of openings 12 one by one, and when one end of each second fixing portion 212, which is far away from the second pressing portion 211, is abutted against the second surface P2 of the circuit board 1, the bracket 21 is fixed on the circuit board 1, and the operation is simple and convenient.

The circuit board 1 shown in this embodiment may be specifically provided with two openings 12, and the two openings 12 are respectively disposed on opposite sides of the board-to-board connector 500. Accordingly, the second fixing portions 212 shown in the embodiment are provided with two, and the two second fixing portions 212 are opposite to the two openings 12 one by one.

Further, in order to ensure the reliability of the connection of the second fixing portion 212 with the circuit board 1 through the opening 12, the second fixing portion 212 shown in the present embodiment includes a connecting section 231 and an abutting section 232; the second pressing part 211 is connected with one end of the connecting section 231, and the other end of the connecting section 231 is connected with one end of the abutting section 232; the connecting segment 231 is disposed in the opening 12, the abutting segment 232 abuts against the second surface P2 of the circuit board 1, and the second surface P2 is opposite to the first surface P1.

In this embodiment, the second pressing portion 211 can be specifically disposed parallel to the abutting portion 232, and an included angle between the extending direction of the connecting portion 231 and the extending direction of the second pressing portion 211 is smaller than 90 °, so as to facilitate the second fixing portion 212 to be inserted into the opening 12.

Thus, under the condition that the two openings 12 and the two second fixing portions 212 on the circuit board 1 are arranged in a one-to-one correspondence manner, when the bracket 21 is fixed on the circuit board 1, an operator may insert the second fixing portion 212 at one end of the bracket 21 into the opening 12 at one side of the board-to-board connector 500 in an inclined manner, and then apply an acting force to the bracket 21, so that the bracket 21 is subjected to a certain bending deformation, and after the second fixing portion 212 at the other end of the bracket 21 is inserted into the opening 12 at the other side of the board-to-board connector 500, the bracket 21 is fixed on the circuit board 1.

In a second aspect, an embodiment of the present application provides an electronic device, including: the circuit board subassembly of any embodiment above is located to casing and casing.

Here, since the electronic device shown in this embodiment includes the circuit board assembly, and the specific structure of the circuit board assembly refers to the above embodiment, the electronic device shown in this embodiment includes all technical solutions of the above embodiment, and therefore, at least all beneficial effects brought by all technical solutions of the above embodiment are achieved, and are not repeated herein.

The electronic device shown in this embodiment may be a smart phone, a tablet computer, a laptop computer, a wearable device, and the like known in the art, and is not limited herein.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims (12)

1. A circuit board assembly, comprising:

the circuit board, the board-to-board connector and the compression joint assembly;

the board-to-board connector is connected with the first surface of the circuit board;

the crimping component comprises a bracket and a reinforcing plate; the bracket is connected with the circuit board, a through hole is formed in the bracket, and the board-to-board connector faces the through hole; the reinforcing plate is arranged on one side face, deviating from the circuit board, of the board-to-board connector, one part of the reinforcing plate is located in the projection of the through hole on the first surface, and the other part of the reinforcing plate is arranged between the support and the circuit board.

2. The circuit board assembly of claim 1, wherein the stiffener includes a first pressing portion and a first fixing portion;

the first pressing part is connected with the first fixing part; the first pressing portion penetrates through the through hole, the first pressing portion is arranged on one side, away from the circuit board, of the board-to-board connector, and the first fixing portion is clamped between the support and the circuit board.

3. The circuit board assembly according to claim 2, wherein a vertical height of a side of the first pressing portion facing away from the circuit board relative to the first surface is greater than or equal to a vertical height of a side of the bracket facing away from the circuit board relative to the first surface.

4. The circuit board assembly of claim 2, wherein a projected area of the board-to-board connector on the first surface is located within a projected area of the first holding portion on the first surface in a direction perpendicular to the first surface.

5. The circuit board assembly of claim 2, wherein the stiffener further comprises a first connecting portion, the first pressing portion is connected to one end of the first connecting portion, the other end of the first connecting portion is connected to the first fixing portion, and the first pressing portion is parallel to the first fixing portion.

6. The circuit board assembly according to any one of claims 1 to 5, wherein the bracket includes a second pressing portion and a second fixing portion; the through hole is arranged on the second pressing part, the other part of the reinforcing plate is clamped between the second pressing part and the circuit board, and the second fixing part is detachably connected with the circuit board.

7. The circuit board assembly of claim 6, further comprising: the retaining member, the second fixed part orientation one side of circuit board with the laminating of the first surface of circuit board, the second fixed part with the circuit board passes through the retaining member is connected.

8. The circuit board assembly according to claim 7, wherein a vertical height of a side of the second pressing portion facing away from the circuit board with respect to the first surface is greater than a vertical height of a side of the second fixing portion facing away from the circuit board with respect to the first surface.

9. The circuit board assembly of claim 7, wherein the retaining member comprises a locking bolt, the second fixing portion is provided with a first screw hole, the circuit board is provided with a second screw hole, a screw head of the locking bolt is disposed on a side surface of the second fixing portion away from the circuit board, a screw rod of the locking bolt is respectively inserted into the first screw hole and the second screw hole, and the screw rod of the locking bolt is respectively in threaded connection with the first screw hole and the second screw hole.

10. The circuit board assembly of claim 6, wherein the circuit board has a plurality of openings; the second fixing parts are arranged in a plurality of the openings in a penetrating mode one to one, one end, far away from the second pressing and holding part, of each second fixing part is abutted to the second surface of the circuit board, and the second surface is opposite to the first surface.

11. The circuit board assembly of claim 10, wherein the second fixing portion comprises a connecting section and an abutting section; the second pressing and holding part is connected with one end of the connecting section, and the other end of the connecting section is connected with one end of the abutting section; the connecting section penetrates through the opening, and the abutting section abuts against the second surface of the circuit board.

12. An electronic device, comprising: a housing and a circuit board assembly as claimed in any one of claims 1 to 11 disposed within the housing.

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