CN219305100U - Circuit board assembly and terminal equipment - Google Patents

Abstract

The application discloses a circuit board assembly and terminal equipment belongs to terminal technical field. The circuit board assembly includes: the circuit board body and the elastic connecting part. The elastic deformation direction of the elastic sheet in the elastic connecting part is perpendicular to the front surface of the circuit board body. Therefore, during the process of installing the circuit board assembly in the terminal device, even though the elastic sheet of the elastic connection part in the circuit board assembly may still receive the reaction force applied by the housing, the direction of the reaction force is generally perpendicular to the front surface of the circuit board body, so that the direction of the reaction force is consistent with the deformation direction of the elastic sheet in the elastic connection part. Therefore, in the process of installing the circuit board assembly in the terminal equipment, the elastic piece in the elastic connecting part can be ensured to elastically deform in the deformation direction, and the elastic piece in the elastic connecting part is further ensured to be not easy to damage.

Description

Circuit board assembly and terminal equipment

Technical Field

The application relates to the technical field of terminals, in particular to a circuit board assembly and terminal equipment.

Background

With the rapid development of integrated circuits and the internet, 3C terminal devices such as computers, communication devices, consumer electronics devices, etc. are becoming popular in people's lives.

Circuit board assemblies, which are important components in terminal equipment, generally include: a printed circuit board (English: printed Circuit Board; PCB for short) and an elastic connection part, wherein the elastic connection part is fixed on the PCB. The functional components within the terminal device may be electrically connected to the PCB through the elastic connection.

However, in the current process of installing the circuit board assembly in the terminal device, the elastic connection portion in the circuit board assembly is easily damaged by external force, so that the electrical connection effect between the elastic connection portion and the functional component in the circuit board assembly is poor, and the reliability of the terminal device is low.

Disclosure of Invention

The embodiment of the application provides a circuit board assembly and terminal equipment. The problem that the elastic connection part in the circuit board assembly in the prior art is easily damaged due to external acting force can be solved, and the technical scheme is as follows:

in one aspect, a circuit board assembly is provided, comprising: a circuit board body and an elastic connection part;

the front surface of the circuit board body is provided with a welding area;

the elastic connection part includes: the connecting piece is fixed in the welding area, the bearing seat is fixedly connected with the connecting piece, the elastic piece is fixedly connected with the auxiliary lengthening piece, and the auxiliary lengthening piece is fixedly connected with one side, close to the circuit board body, of the bearing seat;

wherein, the whole extending direction of at least part of the auxiliary lengthening pieces is vertical to the front surface of the circuit board body; the elastic deformation direction of the elastic sheet is perpendicular to the front surface of the circuit board body, and the elastic sheet is provided with a conductive contact end, and the conductive contact end is used for being abutted with an electrode sheet arranged on the inner side surface of the shell.

Optionally, the auxiliary extension piece includes: the curved surface connecting piece, curved surface connecting piece with elastic piece fixed connection, the whole extending direction of curved surface connecting piece is perpendicular to the front of circuit board body.

Optionally, the curved connecting piece is an S-shaped connecting piece.

Optionally, the auxiliary extension piece further includes: the first plane connection piece, the first plane connection piece with the curved surface connection piece deviates from the one end fixed connection of elastic piece, the first plane connection piece is on a parallel with the front of circuit board body.

Optionally, the auxiliary extension piece further includes: the second plane connection piece, the second plane connection piece with the one end fixed connection that the first plane connection piece deviates from the curved surface connection piece, just the second plane connection piece with the carrier seat is close to one side fixed connection of circuit board body, the second plane connection piece perpendicular to the front of circuit board body.

Optionally, the elastic connection part further includes: the circuit board comprises a bearing seat, a sucking sheet and a supporting piece, wherein the sucking sheet and the supporting piece are fixedly connected with one side, deviating from the circuit board body, of the bearing seat, the supporting piece is closer to the circuit board body relative to the sucking sheet, and the sucking sheet is in contact with the supporting piece.

Optionally, the suction sheet includes: the circuit board comprises a suction piece body and an abutting convex part fixedly connected with the side face of the suction piece body, wherein the abutting convex part is contacted with one side of the support piece, which is away from the circuit board body.

Optionally, the number of the welding areas in the circuit board body is two, the circuit board body is provided with a hollowed-out groove between the two welding areas, and a part of the auxiliary lengthening piece is positioned in the hollowed-out groove.

In another aspect, there is provided a terminal device, including: the circuit board assembly comprises a shell and a circuit board assembly arranged in the shell, wherein the circuit board assembly is the circuit board assembly.

Optionally, the terminal device further includes: the antenna is distributed on the shell, the electrode plate is distributed on the inner side surface of the shell and is electrically connected with the antenna, and the conductive contact end in the circuit board assembly is abutted with the electrode plate.

The beneficial effects that technical scheme that this application embodiment provided include at least:

a circuit board assembly comprising: the circuit board body and the elastic connecting part. The elastic deformation direction of the elastic sheet in the elastic connecting part is perpendicular to the front surface of the circuit board body. Therefore, during the process of installing the circuit board assembly in the terminal device, even though the elastic sheet of the elastic connection part in the circuit board assembly may still receive the reaction force applied by the housing, the direction of the reaction force is generally perpendicular to the front surface of the circuit board body, so that the direction of the reaction force is consistent with the deformation direction of the elastic sheet in the elastic connection part. Therefore, in the process of installing the circuit board assembly in the terminal equipment, the elastic piece in the elastic connecting part can be ensured to elastically deform in the deformation direction, and the elastic piece in the elastic connecting part is further ensured to be not easy to damage. And the elastic piece in the elastic connecting part is connected with the bearing seat through the auxiliary lengthening piece. Therefore, the auxiliary lengthening piece can increase the length of the arm of force corresponding to the reaction force applied by the elastic piece to the elastic piece by the shell. Therefore, the probability of yielding deformation of the elastic sheet caused by larger reaction can be effectively reduced, and the probability of damaging the elastic connection part in the installation process of the circuit board assembly is further reduced. Therefore, the electric connection effect between the conductive contact end of the elastic connection part in the circuit board assembly and the electrode sheet can be effectively improved, and the reliability of the terminal equipment integrated with the circuit board assembly is higher.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a circuit board assembly provided in the related art;

FIG. 2 is an effect diagram of the circuit board assembly shown in FIG. 1 when assembled;

fig. 3 is a schematic structural diagram of a circuit board assembly according to an embodiment of the present disclosure;

FIG. 4 is an exploded view of the circuit board assembly shown in FIG. 3;

FIG. 5 is a cross-sectional view of the resilient connection within the circuit board assembly shown in FIG. 3;

FIG. 6 is a schematic structural view of an elastic connection portion according to an embodiment of the present disclosure;

FIG. 7 is a cross-sectional view of the resilient connection shown in FIG. 6;

FIG. 8 is an exploded view of another circuit board assembly provided in an embodiment of the present application;

FIG. 9 is a schematic view of another elastic connection part according to an embodiment of the present application;

FIG. 10 is a cross-sectional view of the resilient connecting portion shown in FIG. 9;

FIG. 11 is a cross-sectional view of the resilient connecting portion shown in FIG. 9 on the other side;

FIG. 12 is a top view of the resilient connecting portion shown in FIG. 9;

fig. 13 is a schematic structural diagram of a terminal device according to an embodiment of the present application.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a circuit board assembly according to the related art. The circuit board assembly 00 may include: a circuit board body 01, and an elastic connection portion 02 fixed on the circuit board body 01. For example, the circuit board body 01 and the elastic connection portion 02 may be fixedly connected by the pad 03, and electrical connection between the circuit board body 01 and the elastic connection portion 02 may also be achieved by the pad 03.

The elastic connection portion 02 has a conductive contact end 02a, and the conductive contact end 02a of the elastic connection portion 02 protrudes from the circuit board body 01 in a direction parallel to the circuit board body 01.

Here, the elastic connection portion 02 in the circuit board assembly 00 may be a side-connected elastic connection portion. That is, the elastic connection portion 02 of the circuit board assembly 00 needs to be in contact with the inner side surface S01 of the housing 11.

For example, the circuit board assembly 00 is generally required to be assembled in a terminal device, an antenna may be provided on a housing 11 (also generally referred to as a center) in the terminal device, and an electrode pad 11a electrically connected to the antenna may be provided, and the electrode pad 11a may be distributed on an inner side surface S01 of the housing 11. The conductive contact 02a of the elastic connection 02 in the circuit board assembly 00 may abut against the electrode piece 01a provided on the inner side surface S01 of the case 11. In this way, an electrical connection between the circuit board assembly 00 and the antenna can be achieved.

However, referring to fig. 2, fig. 2 is an effect diagram of the circuit board assembly shown in fig. 1 when the circuit board assembly 00 is assembled during the process of installing the circuit board assembly 00 in the terminal device, the elastic connection portion 02 in the circuit board assembly 00 may touch the upper top surface S02 of the housing 11, and a downward force F1 is typically applied to the circuit board assembly 00 during the assembly process. In this way, the housing 11 applies a reaction force F2 to the elastic connection portion 02 in a direction opposite to the direction of the force F1 by the touching action of the elastic connection portion 02 and the upper top surface S02 of the housing 11. The direction of the reaction force F2 applied to the elastic connection portion 02 is generally perpendicular to the deformation direction of the elastic connection portion 02, so that the elastic connection portion 02 is very likely to be deformed in an unrecoverable yield, and the elastic connection portion 02 is very likely to be damaged. In this way, a problem of poor contact may occur between the conductive contact end 02a of the elastic connection portion 02 and the electrode pad 01a in the current circuit board assembly 00, resulting in poor electrical connection between the circuit board assembly 00 and the antenna, and further resulting in lower reliability of the terminal device.

Referring to fig. 3 and 4, fig. 3 is a schematic structural diagram of a circuit board assembly according to an embodiment of the present application, and fig. 4 is an exploded view of the circuit board assembly shown in fig. 3. The circuit board assembly 000 may include: a circuit board body 100 and an elastic connection portion 200.

The front surface A1 of the circuit board body 100 in the circuit board assembly 000 may have a land 101. For example, a plurality of electronic devices (not shown in the drawing) are generally disposed on the circuit board body 100, and the front surface A1 of the circuit board body 100 is the surface of the circuit board body 100 on which the plurality of electronic devices are disposed. For example, the circuit board body 100 may be a PCB circuit board or a flexible circuit board (english: flexible Printed Circuit; abbreviated as FPC). The embodiment of the present application is not particularly limited thereto.

The elastic connection part 200 in the circuit board assembly 000 may include: a connector 201, a bearing seat 202, an elastic piece 203 and an auxiliary extension piece 204.

Here, the connection member 201 in the elastic connection portion 200 may be fixed in the soldering region 101 of the circuit board body 100. The bearing seat 202 in the elastic connection part 200 may be fixedly connected with the connection piece 201. For example, the number of the connecting pieces 201 in the elastic connecting portion 200 is two, and the two connecting pieces 201 are respectively located at two sides of the bearing seat 202. Correspondingly, the number of the soldering lands 101 in the circuit board body 100 is two, and the two soldering lands 101 can be in one-to-one correspondence with the two connecting pieces 201, and each connecting piece 201 can be fixed in the corresponding soldering land 101. In this way, the carrier 202 can be stably fixed to the circuit board body 101 by the two connection members 201.

The elastic piece 203 in the elastic connection portion 200 may be fixedly connected with the auxiliary extension piece 204, and the auxiliary extension piece 204 may be fixedly connected with a side of the carrier 202 near the circuit board body 100.

For a clearer view of the structure of the auxiliary extension piece 204 in the elastic connection portion 200, as shown in fig. 5, fig. 5 is a sectional view of the elastic connection portion in the circuit board assembly shown in fig. 3. The overall extending direction X of at least part of the auxiliary extension pieces 204 in the elastic connection portion 200 may be perpendicular to the front face A1 of the circuit board body 100. The elastic deformation direction of the elastic sheet 203 may also be perpendicular to the front surface A1 of the circuit board body 100, and the elastic sheet 203 has a conductive contact end 200a, and the conductive contact end 200a is used for abutting against an electrode sheet disposed on the inner side surface of the housing.

In the embodiment of the present application, since the elastic deformation direction of the elastic piece 203 in the elastic connection portion 200 is perpendicular to the front face A1 of the circuit board body 100. Therefore, during the process of mounting the circuit board assembly 000 in the terminal device, even though the elastic piece 203 of the elastic connection part 200 in the circuit board assembly 000 may still receive the reaction force applied thereto by the housing, since the direction of the reaction force is generally perpendicular to the front face A1 of the circuit board body 100, the direction of the reaction force is made to coincide with the deformation direction of the elastic piece 203 in the elastic connection part 200. In this way, it is ensured that the elastic piece 203 in the elastic connection portion 200 can be elastically deformed in the deformation direction thereof during the process of mounting the circuit board assembly 000 in the terminal device, and further that the elastic piece 203 in the elastic connection portion 200 is not easily damaged.

And because the elastic piece 203 in the elastic connection portion 200 needs to be connected with the bearing seat 202 through the auxiliary extension piece 204. Therefore, the auxiliary extension piece 204 can increase the arm length corresponding to the reaction force applied by the housing to the elastic piece 203. In this way, the probability of yielding deformation of the elastic sheet 203 due to a large reaction can be effectively reduced, so as to further reduce the probability of damaging the elastic connection portion 200 during the mounting of the circuit board assembly 000.

In this way, the electrical connection effect between the conductive contact end 200a of the elastic connection portion 200 and the electrode pad in the circuit board assembly 000 can be effectively improved, so that the reliability of the terminal device integrated with such circuit board assembly 000 is high. Moreover, the overall extending direction X of at least part of the auxiliary extension piece 204 in the present application may be perpendicular to the front surface A1 of the circuit board body 100, so that on the premise that the length of the arm corresponding to the reaction force applied by the housing on the elastic piece 203 is increased, the width of the elastic connection portion 200 in the direction parallel to the front surface A1 of the circuit board body 100 is ensured to be smaller, so that the overall volume of the circuit board assembly 000 is smaller.

In summary, the circuit board assembly provided in the embodiment of the present application includes: the circuit board body and the elastic connecting part. The elastic deformation direction of the elastic sheet in the elastic connecting part is perpendicular to the front surface of the circuit board body. Therefore, during the process of installing the circuit board assembly in the terminal device, even though the elastic sheet of the elastic connection part in the circuit board assembly may still receive the reaction force applied by the housing, the direction of the reaction force is generally perpendicular to the front surface of the circuit board body, so that the direction of the reaction force is consistent with the deformation direction of the elastic sheet in the elastic connection part. Therefore, in the process of installing the circuit board assembly in the terminal equipment, the elastic piece in the elastic connecting part can be ensured to elastically deform in the deformation direction, and the elastic piece in the elastic connecting part is further ensured to be not easy to damage. And the elastic piece in the elastic connecting part is connected with the bearing seat through the auxiliary lengthening piece. Therefore, the auxiliary lengthening piece can increase the length of the arm of force corresponding to the reaction force applied by the elastic piece to the elastic piece by the shell. Therefore, the probability of yielding deformation of the elastic sheet caused by larger reaction can be effectively reduced, and the probability of damaging the elastic connection part in the installation process of the circuit board assembly is further reduced. Therefore, the electric connection effect between the conductive contact end of the elastic connection part in the circuit board assembly and the electrode sheet can be effectively improved, and the reliability of the terminal equipment integrated with the circuit board assembly is higher.

As illustrated in fig. 4, each of the lands 101 in the circuit board body 100 has a connection hole 103 therein, a portion of each of the connection members 201 in the elastic connection portion 200 may be located in the connection hole 103 in the corresponding land 101, and the circuit board assembly 000 further includes: solder paste for fixing the connection member 201 and the connection hole 103. In this way, the connecting piece 201 can be fastened and fixed in the connecting hole 103 by the solder paste, and the electrical connection between the connecting piece 201 and the circuit board body 100 can be realized by the solder paste, so that the elastic connection portion 200 and the circuit board body 100 can be electrically connected.

In the embodiment of the present application, as shown in fig. 6 and 7, fig. 6 is a schematic structural view of an elastic connection portion provided in the embodiment of the present application, and fig. 7 is a sectional view of the elastic connection portion shown in fig. 6. The elastic piece 203 in the elastic connection portion 200 may include: a first resilient flat body 2031 and a second resilient flat body 2032. Wherein, the first end of the first elastic sheet body 2031 is fixedly connected with the first end of the second elastic sheet body 2032. Here, the first ends of the first elastic flat body 2031 and the second elastic flat body 2032 connected to each other in the elastic sheet 203 are used to constitute the conductive contact terminal 200a. And the first elastic flat body 2031 is closer to the circuit board body 100 than the second elastic flat body 2032, so that the second end of the first elastic sheet body 2031 can be fixedly connected with the auxiliary extension piece 204, and the second end of the second elastic sheet body 2032 can be movably connected with one side of the bearing seat 202 away from the circuit board body 100.

In this application, the plane in which the first elastic sheet body 2031 is located intersects with the plane in which the second elastic flat body 2032 is located, and the intersecting angle between the two is an acute angle. In this way, it can be ensured that the elastic sheet 203 composed of the first elastic sheet body 2031 and the second elastic sheet body 2032 can be elastically deformed in the direction perpendicular to the front face A1 of the circuit board body 100, and that the second elastic sheet body 2031 can be displaced by a small amount in the direction perpendicular to the front face A1 of the circuit board body 100 during elastic deformation of the elastic sheet 203, so as to further reduce the probability of occurrence of yield deformation of the elastic sheet 203.

It should be noted that, when the conductive contact end 200a of the elastic connection portion 200 receives a reaction force applied by the housing during the installation of the circuit board assembly 00 in the terminal device, at the position where the conductive contact end 200a is located, the length of the arm corresponding to the reaction force is: the sum of the length L1 of the first elastic tab body 2031 and the length L2 of the auxiliary extension tab 204. For this reason, the length of the arm corresponding to the reaction F2 at the position of the conductive contact terminal 200a can be ensured to be large by providing the auxiliary extension piece 204 in the elastic connection portion 200. In this way, the probability of yielding deformation of the second elastic sheet 204 due to a large reaction can be effectively reduced.

Alternatively, as shown in fig. 6 and 7, the auxiliary extension piece 204 in the elastic connection portion 200 may include: curved connecting piece 2041. The curved connecting piece 2041 of the auxiliary extension piece 204 may be fixedly connected with the elastic piece 204 of the elastic connecting portion 200. For example, the curved connecting piece 2041 may be fixedly connected to an end of the first elastic piece body 2031 of the elastic pieces 203 facing away from the second elastic piece body 2032. Here, the overall extending direction X of the curved connecting piece 2041 in the auxiliary extension piece 204 may be perpendicular to the front face A1 of the circuit board body 100.

In this case, since the extending direction of the curved surface connecting piece 2041 may be a curved direction. Therefore, the length L21 of the curved surface connecting piece 2041 means: the curved connecting piece 2041 extends in a curved direction. For this reason, by providing the curved surface connecting piece 2041 in the auxiliary extension piece 204, the length L2 of the auxiliary extension piece 204 can be ensured to be large, so that the length of the moment arm corresponding to the reaction at the position of the conductive contact terminal 200a is large. In addition, the overall extending direction X of the curved connecting piece 2041 is perpendicular to the front face A1 of the circuit board body 100, so that the width of the auxiliary extension piece 204 in the direction parallel to the front face A1 of the circuit board body 100 can be reduced, and the overall size of the circuit board assembly 200 is smaller.

For example, the curved connecting piece 2041 in the auxiliary extension piece 204 may be an S-shaped connecting piece. That is, the extending direction of the curved connecting piece 2041 is an S-shaped curve direction, and the extending direction of the whole S-shaped curve direction is perpendicular to the front face A1 of the circuit board body 100.

Optionally, as shown in fig. 6 and 7, the auxiliary extension piece 204 in the elastic connection portion 200 may further include: a first planar connection 2042. The first planar connection piece 2042 in the auxiliary extension piece 204 may be fixedly connected with one end of the curved connection piece 2041 facing away from the elastic piece 203, and the extending direction of the first planar connection piece 2042 in the auxiliary extension piece 204 is parallel to the front face A1 of the circuit board body 100.

In this case, the extending direction of the first plane connecting piece 2042 may be a straight line direction parallel to the front face A1 of the circuit board body 100. Thus, the length L22 of the first planar connection sheet 2042 means: the first planar connection piece 2042 has a length when extending in a straight direction parallel to the front face A1 of the circuit board body 100.

Optionally, as shown in fig. 6 and 7, the auxiliary extension piece 204 in the elastic connection portion 200 may further include: a second planar connection 2043. The second planar connecting piece 2043 in the auxiliary extension piece 204 may be fixedly connected with one end of the first planar connecting piece 2042 away from the curved connecting piece 2041, and the second planar connecting piece 2043 in the auxiliary extension piece 204 may be fixedly connected with one side of the carrier 202 close to the circuit board body 100. Here, the second planar connection piece 2043 in the auxiliary extension piece 204 extends in a direction perpendicular to the front face A1 of the circuit board body 100.

In this case, the extending direction of the second plane connecting piece 2043 may be a straight line direction perpendicular to the front face A1 of the circuit board body 100. Thus, the length L23 of the second planar connection sheet 2043 means: the second planar connection piece 2043 has a length when extending in a straight direction perpendicular to the front face A1 of the circuit board body 100.

In the present application, the length L2 of the auxiliary extension piece 204 in the elastic connection portion 200 is: the sum of the length L21 of the curved surface connecting piece 2041, the length L22 of the first planar connecting piece 2042, and the length L23 of the second planar connecting piece 2043. In this way, by designing the curved surface connecting piece 2041, the first plane connecting piece 2042, and the second plane connecting piece 2043 in the auxiliary extension piece 204, the length of the auxiliary extension piece 204 can be increased as much as possible, so as to ensure that the length of the moment arm corresponding to the reaction force F2 at the position of the conductive contact terminal 200a is larger.

It should be noted that, in the present application, the first planar connection piece 2042 and the second planar connection piece 2043 do not protrude from the circuit board body 100, so as to ensure that the width of the auxiliary extension piece 204 in the direction parallel to the front face A1 of the circuit board body 100 is smaller.

As illustrated in fig. 8, fig. 8 is an exploded view of another circuit board assembly provided in an embodiment of the present application. The circuit board body 100 has a hollowed-out groove 102 between two soldering lands 101. A portion of the auxiliary extension 204 of the resilient connecting portion 200 may be located within the hollow-out slot 102. For example, the first planar connection 2042 and the second planar connection 2043 of the auxiliary extension 204 may be located in the hollow slot 102. Thus, by providing the hollowed-out groove 102 in the circuit board body 100, it is not only ensured that the length L22 of the first planar connecting piece 2042 and the second planar connecting piece 2043 do not protrude from the circuit board body 100, so as to ensure that the width of the auxiliary extension piece 204 in the direction parallel to the front face A1 of the circuit board body 100 is smaller, but also reduce the height of the elastic connecting portion 200 in the direction perpendicular to the front face A1 of the circuit board body 100, so that the overall volume of the circuit board assembly 000 is smaller.

Alternatively, as shown in fig. 9 and 10, fig. 9 is a schematic structural view of another elastic connection part provided in the embodiment of the present application, and fig. 10 is a cross-sectional view of the elastic connection part shown in fig. 9. The bearing seat 202 in the elastic connection portion 200 may include: two oppositely disposed first side panels 2021, and a second side panel 2022 located between the two first side panels 2021. Wherein, two sides of the second side plate 2022 are fixedly connected to one sides of the two first side plates 2021. The elastic pieces 204 in the elastic connection 200 may be distributed on the side of the two first side plates 2021 facing away from the second side plate 2022.

In this application, one end of the two first side boards 2021 in the carrier 202 near the circuit board body 100 may be fixedly connected to the two connecting pieces 201 in the elastic connection portion 200 respectively. In this way, the carrier 202 may be fixedly connected to the two connectors 201 via the two first side plates 2021, and may be fixed on the front surface A1 of the circuit board body 100. One end of the second side plate 2022 in the bearing seat 200, which is close to the circuit board body 100, may be fixedly connected with one end of the second planar connection piece 2043 in the auxiliary extension piece 204, which is away from the first planar connection piece 2042.

Alternatively, as shown in fig. 10, the elastic connection part 200 may further include: and a branch 206 fixedly connected to an end of the second elastic sheet body 2022 opposite to the first elastic sheet body 2021. One end of the branch 206 facing away from the second elastic sheet body 2022 may abut against a surface of the second side plate 2022 near the elastic sheet 203. By providing the spacer 206 at the elastic connection portion 200, a larger contact force can be provided to the elastic sheet 203 during elastic deformation, so as to further reduce the probability of yielding deformation of the elastic sheet 203.

In the embodiment of the present application, as shown in fig. 9 and 11, fig. 11 is a sectional view of the elastic connection portion shown in fig. 9 at the other side. The carrier 202 may further comprise: and a limiting plate 2023 fixedly connected to a side of each first side plate 2021 facing away from the second side plate 2022. The elastic connection part 200 may further include: a hook 205 located between the second elastic sheet body 2022 and the branch 206. The hooks 205 may be located between the two first side plates 2021, and the hooks 205 may be respectively clamped with the two limiting plates 2023. Thus, the hooks 205 are engaged with the two limiting plates 2023, so that the spacer 206 is prevented from coming out from between the two first side plates 201. And the hooks 205 and the two limiting plates 2023 have no fixed relation, so that one end of the second elastic sheet body 2032, which is away from the first elastic sheet body 2031, can still be movably connected with the bearing seat 202.

In the present application, as shown in fig. 9, 10 and 11, the elastic connection part 200 may further include: a suction piece 207 fixedly connected with one side of the bearing seat 202 away from the circuit board body 100. Wherein the suction sheet 207 may be disposed in parallel with the circuit board body 100. For example, the suction piece 207 in the elastic connection portion 200 may be fixedly connected to an end of the second side plate 2022 in the carrier 202 facing away from the circuit board body 100, and the suction piece 207 may be located between the two first side plates 2021. Here, after the suction sheet 207 can be sucked by a gripping device such as a robot arm, the entire elastic connection portion 200 can be moved by the suction sheet 207. For example, when the elastic connection part 200 needs to be fixed on the circuit board body 100, the suction piece 207 is sucked by the grabbing device, and the grabbing device is controlled so that the whole elastic connection part 200 can move towards the direction of the circuit board body 100 until each connection piece 201 in the elastic connection part 200 is positioned in the corresponding connection hole 103 in the circuit board body 100, and after the connection pieces are welded by welding, the grabbing device can be controlled to cancel the suction piece 207, so that the elastic connection part 200 can be fixed on the circuit board body 100.

Alternatively, as shown in fig. 9 and 10, the elastic connection part 200 may further include: a support 208 fixedly connected to a side of the carrier 202 facing away from the circuit board body 100. Wherein the supporting member 208 is closer to the circuit board body 100 than the suction sheet 207, and the suction sheet 207 may be in contact with the supporting member 208. For example, the number of the supporting members 208 in the elastic connection portion 200 is two, the two supporting members 208 are respectively and fixedly connected with one ends of the two first side boards 2021 in the bearing seat 202, which are away from the circuit board body 100, and the two supporting members 208 may be located between the two first side boards 2021, and the suction piece 207 may contact one surface of each supporting member 208, which is away from the circuit board body 100.

In this case, by providing the supporting member 208 on the side of the carrier 202 facing away from the circuit board body 100 and allowing the suction sheet 207 to contact with the side of the supporting member 208 facing away from the circuit board body 100, the supporting member 208 can support the suction sheet 207. Like this, can prevent to absorb the phenomenon that the piece 207 appears buckling towards circuit board body 100 under the exogenic action for absorb piece 207 can be parallel arrangement with circuit board body 100 all the time, and then guarantee to follow-up through snatching equipment can absorb piece 207 smoothly all the time, make elastic connection portion 200 can be snatched smoothly.

In the embodiment of the present application, as shown in fig. 12, fig. 12 is a top view of the elastic connection portion shown in fig. 9. The suction sheet 207 may include: the suction sheet body 2071, and an abutment protrusion 2072 fixedly connected to a side surface of the suction sheet body 2071. Wherein the abutment protrusion 2072 in the suction piece 207 may be in contact with a side of the support 208 facing away from the circuit board body 100. For example, when the number of the supporting pieces 208 in the elastic connection portion 200 is two, two abutment protruding portions 2072 may be provided in the suction piece 207, and since the two supporting pieces 208 are respectively fixedly connected to one ends of the two first side boards 2021 in the carrier 202 facing away from the circuit board body 100, the two abutment protruding portions 2072 in the suction piece 207 may be distributed on both sides of the suction piece body 2071. In this way, the two abutment protrusions 2072 can be respectively in contact with the two supports 208. In this way, the suction piece 207 is contacted with the two supporting pieces 208 through the two abutting convex parts 2072, so that the two supporting pieces 208 can be ensured to stably support the suction piece 207, and the suction piece 207 is ensured not to bend towards the circuit board body 100 under the action of external force.

Alternatively, the connecting member 201, the bearing seat 202, the elastic piece 203, the auxiliary extension piece 204, the hook 205, the branch 206, the suction piece 207 and the supporting member 208 in the elastic supporting portion 200 in the above embodiment may be integrally contacted. For example, the metal sheet may be subjected to bending processing a plurality of times to obtain the elastic supporting portion 200.

In summary, the circuit board assembly provided in the embodiment of the present application includes: the circuit board body and the elastic connecting part. The elastic deformation direction of the elastic sheet in the elastic connecting part is perpendicular to the front surface of the circuit board body. Therefore, during the process of installing the circuit board assembly in the terminal device, even though the elastic sheet of the elastic connection part in the circuit board assembly may still receive the reaction force applied by the housing, the direction of the reaction force is generally perpendicular to the front surface of the circuit board body, so that the direction of the reaction force is consistent with the deformation direction of the elastic sheet in the elastic connection part. Therefore, in the process of installing the circuit board assembly in the terminal equipment, the elastic piece in the elastic connecting part can be ensured to elastically deform in the deformation direction, and the elastic piece in the elastic connecting part is further ensured to be not easy to damage. And the elastic piece in the elastic connecting part is connected with the bearing seat through the auxiliary lengthening piece. Therefore, the auxiliary lengthening piece can increase the length of the arm of force corresponding to the reaction force applied by the elastic piece to the elastic piece by the shell. Therefore, the probability of yielding deformation of the elastic sheet caused by larger reaction can be effectively reduced, and the probability of damaging the elastic connection part in the installation process of the circuit board assembly is further reduced. Therefore, the electric connection effect between the conductive contact end of the elastic connection part in the circuit board assembly and the electrode sheet can be effectively improved, and the reliability of the terminal equipment integrated with the circuit board assembly is higher.

The embodiment of the application also provides terminal equipment which can be products or components such as smart phones, tablet computers, notebook computers, cameras and the like. The terminal device may include: a housing, and a circuit board assembly mounted within the housing. The circuit board assembly can be any one of the circuit board assemblies given above. For example, when the terminal device is a smart phone, the housing may be a middle frame in the smart phone.

Optionally, please refer to fig. 13, fig. 13 is a schematic structural diagram of a terminal device according to an embodiment of the present application. The terminal device may further include: antennas (not shown in fig. 13) distributed on the housing 001, and electrode pieces 002 distributed on the inner side surface S1 of the housing 001 and electrically connected to the antennas. The conductive contact 200a in the circuit board assembly 000 is in contact with the electrode piece 002 provided on the inner side surface S1 of the case 001. Here, the electrode sheet 002 may be a conductive copper foil, or may be another structure having conductive properties, which is not particularly limited in the embodiment of the present application. In this case, it is ensured that the circuit board assembly 000 in the terminal device can be electrically connected to the antenna distributed in the housing 001, so that the circuit board assembly 000 can radiate electromagnetic signals outward through the antenna.

In this application, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" refers to two or more, unless explicitly defined otherwise.

The foregoing description of the preferred embodiments is merely exemplary in nature and is in no way intended to limit the utility model, since it is intended that all modifications, equivalents, improvements, etc. that fall within the spirit and scope of the utility model.

Claims (10)

1. A circuit board assembly, comprising: a circuit board body (100) and an elastic connection part (200);

the front surface (A1) of the circuit board body (100) is provided with a welding area (101);

the elastic connection part (200) includes: the circuit board comprises a connecting piece (201), a bearing seat (202), an elastic piece (203) and an auxiliary lengthening piece (204), wherein the connecting piece (201) is fixed in a welding area (101), the bearing seat (202) is fixedly connected with the connecting piece (201), the elastic piece (203) is fixedly connected with the auxiliary lengthening piece (204), and the auxiliary lengthening piece (204) is fixedly connected with one side, close to the circuit board body (100), of the bearing seat (202);

wherein the overall extension direction (X) of at least part of the auxiliary extension piece (204) is perpendicular to the front face (A1) of the circuit board body (100); the elastic deformation direction of the elastic sheet (203) is perpendicular to the front surface (A1) of the circuit board body (100), the elastic sheet (203) is provided with a conductive contact end (200 a), and the conductive contact end (200 a) is used for being abutted with an electrode sheet arranged on the inner side surface of the shell.

2. The circuit board assembly of claim 1, wherein the auxiliary extension tab (204) comprises: the curved surface connecting piece (2041), curved surface connecting piece (2041) with elastic piece (203) fixed connection, the whole extending direction of curved surface connecting piece (2041) is perpendicular to front (A1) of circuit board body (100).

3. The circuit board assembly according to claim 2, wherein the curved connecting piece (2041) is an S-shaped connecting piece.

4. The circuit board assembly of claim 2, wherein the auxiliary extension tab (204) further comprises: the first plane connection piece (2042), first plane connection piece (2042) with curved surface connection piece (2041) deviates from the one end fixed connection of elastic piece (203), first plane connection piece (2042) is parallel to front (A1) of circuit board body (100).

5. The circuit board assembly of claim 4, wherein the auxiliary extension tab (204) further comprises: the second plane connection piece (2043), second plane connection piece (2043) with the one end fixed connection of first plane connection piece (2042) deviating from curved surface connection piece (2041), just second plane connection piece (2043) with bear seat (202) be close to one side fixed connection of circuit board body (100), second plane connection piece (2043) perpendicular to front (A1) of circuit board body (100).

6. The circuit board assembly according to any one of claims 1 to 4, wherein the elastic connection portion (200) further comprises: and the support piece (208) is closer to the circuit board body (100) relative to the suction piece (207), and the suction piece (207) is in contact with the support piece (208).

7. The circuit board assembly according to claim 6, wherein the suction sheet (207) comprises: the suction sheet comprises a suction sheet body (2071) and an abutting convex part (2072) fixedly connected with the side surface of the suction sheet body (2071), wherein the abutting convex part (2072) is contacted with one side of the supporting piece (208) away from the circuit board body (100).

8. The circuit board assembly according to any one of claims 1 to 4, wherein the number of lands (101) in the circuit board body (100) is two, the circuit board body (100) has a hollowed-out groove (102) between the two lands (101), and a part of the auxiliary extension piece (204) is located in the hollowed-out groove (102).

9. A terminal device, comprising: a housing, and a circuit board assembly mounted within the housing, the circuit board assembly being as claimed in any one of claims 1 to 7.

10. The terminal device according to claim 9, characterized in that the terminal device further comprises: the antenna is distributed on the shell, the electrode plate is distributed on the inner side surface of the shell and is electrically connected with the antenna, and the conductive contact end in the circuit board assembly is abutted with the electrode plate.

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