CN113889810A

CN113889810A - Press fit structure, circuit board assembly and mobile terminal

Info

Publication number: CN113889810A
Application number: CN202010616879.8A
Authority: CN
Inventors: 李永光; 王先进; 刘择栋; 王天兴
Original assignee: Oneplus Technology Shenzhen Co Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2022-01-04
Anticipated expiration: 2040-07-01
Also published as: CN113889810B

Abstract

The present application relates to a press-fit structure, a circuit board assembly and a mobile terminal. The press-fit structure includes: a bracket, the bracket is provided with a plug-in port; a press plate includes a plug-in part, a main body part and a matching part which are connected in sequence, the plug-in part can be inserted into the plug-in port, and the matching part a snap slot is provided; and a snap has a snap space, the snap includes a snap portion and a guide portion arranged oppositely, the snap portion and the guide portion can be elastically opened to form an opening, the snap The matching portion can enter the engaging space through the opening, and during the process of entering the engaging portion into the engaging space, the guide portion can push the matching portion against the engaging portion, so that all The engaging slot is engaged with the engaging portion. In the above-mentioned pressing structure, the pressing plate and the buckle can be assembled by only one pressing action, which is convenient and quick, and can improve the assembly efficiency.

Description

Press fit structure, circuit board assembly and mobile terminal

Technical Field

The application relates to the technical field of plate-to-plate connector fixing structures, in particular to a press fit structure, a circuit board assembly and a mobile terminal.

Background

In electronic devices such as mobile phones and tablet computers, a flexible circuit Board carrying functional elements such as a camera module and a fingerprint module is generally connected To a main circuit Board through a Board-To-Board (BTB) connector. However, the BTB connector may have a problem of loose connection, resulting in disconnection of the flexible circuit board from the main circuit board. In the prior art, the BTB connector is fixed by adopting a screw driving mode, so that the operation is complicated and the assembly is inconvenient.

Disclosure of Invention

The embodiment of the application provides a press fit structure, a circuit board assembly and a mobile terminal to solve the problem that the fixing mode of a BTB connector in the prior art is complex.

A press-fit structure comprising:

the bracket is provided with a plug interface;

the pressing plate comprises an inserting part, a main body part and a matching part which are sequentially connected, the inserting part can be inserted into the inserting port, and the matching part is provided with a clamping groove; and

the buckle has the block space, the buckle is including the block portion and the guide part that set up relatively, the block portion with the guide part can elastically expand in order to form the opening, cooperation portion can by the opening gets into the block space cooperation portion gets into the in-process in block space, the guide part can with cooperation portion support to block portion, so that the joint groove joint in block portion.

Above-mentioned pressfitting structure, in the assembling process, with the clamp plate lid in the connector top, the region that block portion and guide part are relative is aimed at to the cooperation portion, presses the clamp plate downwards, and block portion and guide part elasticity open under the squeezing action of cooperation portion to the cooperation portion gets into in the block space. In the process that the matching part enters the clamping space, the guide part and the clamping part reset under the action of elastic force and are close to each other, and the matching part is abutted to the clamping part by the guide part so as to realize clamping connection of the clamping groove and the clamping part. The clamping portion is matched with the clamping groove, so that the clamping buckle can limit the pressing plate in the Z-axis direction, the pressing plate is abutted to the connector, and the connector is prevented from loosening. This pressfitting structure only needs can realize the assembly of clamp plate and buckle through once pressing the action, and convenient and fast can improve the packaging efficiency.

In one embodiment, the guide portion includes a free end connected in a bent manner and a first connecting wall connected to the engaging portion, and the free end is deflected toward a side away from the engaging portion.

In one embodiment, the engaging portion includes an engaging end and a second connecting wall, the engaging end is used for engaging with the engaging groove, the second connecting wall is connected to the first connecting wall, and when the buckle is placed in the forward direction, one side of the free end close to the first connecting wall is lower than the engaging end.

In one embodiment, the engaging end is a curled edge, and when the buckle is placed in a forward direction, the end of the curled edge far away from the second connecting wall is inclined upwards.

In one embodiment, the engaging end is a plate-shaped structure and is disposed obliquely toward the second connecting wall.

In one embodiment, the buckle is an integrated structure formed by bending a metal elastic sheet.

In one embodiment, the pressing structure further comprises a support, the support is provided with an insertion port, and the pressing plate comprises an insertion portion, wherein the insertion portion can be inserted into the insertion port.

In one embodiment, the pressing plate further comprises a main body part, the insertion part and the main body part form a step structure, and the step structure can abut against the support.

A circuit board assembly comprising:

a circuit board;

the connector is arranged on the circuit board; and

the pressing structure is characterized in that the buckle is fixed on the circuit board, one end of the pressing plate is inserted into the support, and the other end of the pressing plate is clamped in the buckle so as to press the connector on the circuit board.

A mobile terminal comprises the circuit board assembly.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a diagram illustrating a mobile terminal in one embodiment;

FIG. 2 is a schematic diagram of a circuit board assembly according to an embodiment;

FIG. 3 is an exploded view of a press-fit structure in the circuit board assembly shown in FIG. 2;

FIG. 4 is a schematic view of a platen of a press-fit structure in one embodiment;

FIG. 5 is a side view of a clasp of the compression fitting arrangement in one embodiment;

FIG. 6 is a side view of a clasp of a compression fitting arrangement in another embodiment.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, 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 invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As used herein, "terminal device" refers to a device capable of receiving and/or transmitting communication signals including, but not limited to, devices connected via any one or more of the following connections:

(1) via wireline connections, such as via Public Switched Telephone Network (PSTN), Digital Subscriber Line (DSL), Digital cable, direct cable connections;

(2) via a Wireless interface means such as a cellular Network, a Wireless Local Area Network (WLAN), a digital television Network such as a DVB-H Network, a satellite Network, an AM-FM broadcast transmitter.

A terminal device arranged to communicate over a wireless interface may be referred to as a "mobile terminal". Examples of mobile terminals include, but are not limited to, the following electronic devices:

(1) satellite or cellular telephones;

(2) personal Communications Systems (PCS) terminals that may combine cellular radiotelephones with data processing, facsimile, and data Communications capabilities;

(3) radiotelephones, pagers, internet/intranet access, Web browsers, notebooks, calendars, Personal Digital Assistants (PDAs) equipped with Global Positioning System (GPS) receivers;

(4) conventional laptop and/or palmtop receivers;

(5) conventional laptop and/or palmtop radiotelephone transceivers, and the like.

The invention provides a mobile terminal.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a mobile terminal according to an embodiment of the present application. The mobile terminal may include Radio Frequency (RF) circuitry 501, memory 502 including one or more computer-readable storage media, input unit 503, display unit 504, sensor 505, audio circuitry 506, Wireless Fidelity (WiFi) module 507, processor 508 including one or more processing cores, and power supply 509.

The rf circuit 501 may be used for receiving and transmitting information, or receiving and transmitting signals during a call, and in particular, receives downlink information of a base station and then sends the received downlink information to one or more processors 508 for processing; in addition, data relating to uplink is transmitted to the base station. In general, radio frequency circuit 501 includes, but is not limited to, an antenna, at least one Amplifier, a tuner, one or more oscillators, a Subscriber Identity Module (SIM) card, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, the radio frequency circuit 501 may also communicate with a network and other devices through wireless communication.

The memory 502 may be used to store applications and data. Memory 502 stores applications containing executable code. The application programs may constitute various functional modules. The processor 508 executes various functional applications and data processing by executing application programs stored in the memory 502.

The input unit 503 may be used to receive input numbers, character information, or user characteristic information (such as a fingerprint), and generate a keyboard, mouse, joystick, optical, or trackball signal input related to user setting and function control. In particular, in one particular embodiment, the input unit 503 may include a touch-sensitive surface as well as other input devices. The touch-sensitive surface, also referred to as a touch display screen or a touch pad, may collect touch operations by a user (e.g., operations by a user on or near the touch-sensitive surface using a finger, a stylus, or any other suitable object or attachment) thereon or nearby, and drive the corresponding connection device according to a predetermined program. Alternatively, the touch sensitive surface may comprise two parts, a touch detection means and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 508, and can receive and execute commands sent by the processor 508.

The display unit 504 may be used to display information input by or provided to the user and various graphical user interfaces of the mobile terminal, which may be made up of graphics, text, icons, video, and any combination thereof.

The mobile terminal may also include at least one sensor 505, such as a light sensor, motion sensor, and other sensors.

The audio circuit 506 may provide an audio interface between the user and the mobile terminal through a speaker, microphone. The audio circuit 506 can convert the received audio data into an electrical signal, transmit the electrical signal to a speaker, and convert the electrical signal into a sound signal to output; on the other hand, the microphone converts the collected sound signal into an electrical signal, which is received by the audio circuit 506 and converted into audio data, which is then processed by the audio data output processor 508 and then sent to, for example, another mobile terminal via the rf circuit 501, or the audio data is output to the memory 502 for further processing.

Wireless fidelity (WiFi) belongs to short-distance wireless transmission technology, and the mobile terminal can help the user to receive and send e-mail, browse web pages, access streaming media and the like through the wireless fidelity module 507, and provides wireless broadband internet access for the user.

The processor 508 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by running or executing an application program stored in the memory 502 and calling data stored in the memory 502, thereby integrally monitoring the mobile terminal.

The mobile terminal also includes a power supply 509 to power the various components. Preferably, the power supply 509 may be logically connected to the processor 508 through a power management system, so that the power management system may manage charging, discharging, and power consumption. The power supply 509 may also include any component such as one or more dc or ac power sources, recharging systems, power failure detection circuitry, power converters or inverters, power status indicators, and the like.

Functional elements such as camera module, fingerprint module and light sense subassembly among the mobile terminal are equipped with flexible circuit board usually to make things convenient for and mobile terminal's mainboard communication connection. In addition, the main board and the auxiliary board of the mobile terminal adopting the half-board structure design can be in communication connection through the flexible circuit board. One of the connection modes of the flexible circuit board and the mainboard is as follows: the mainboard and the flexible circuit board are respectively provided with a male connector and a female connector which are matched with each other, and the male connector and the female connector are aligned with each other and are plugged together, so that the communication connection of the mainboard and the flexible circuit board can be realized. It is understood that the male Connector and the female Connector are both Board-to-Board connectors (BTB connectors).

In some embodiments, the mobile terminal includes a circuit board assembly, and referring to fig. 2, the circuit board assembly 200 includes a circuit board 210, a connector 220, and a press-fit structure 100.

The circuit board 210 serves as a main board of the mobile terminal, and the circuit board 210 has a control chip mounted thereon. The connector 220 includes a male connector and a female connector, wherein the male connector is fixed on the circuit board 210 and is in communication connection with the control chip, and the female connector is connected to the camera module, the fingerprint module, the light sensing module or the sub-board through a flexible circuit board or a flexible flat cable. The male connector and the female connector are mutually matched to enable elements such as a camera module, a fingerprint module or a light sensing assembly or an auxiliary board to be in communication connection with a control chip arranged on the circuit board 210. The press-fit structure 100 is used for press-fitting the female connector to the male connector, preventing the female connector from loosening, and ensuring the electrical contact between the female connector and the male connector. In other embodiments, the positions of the male and female connectors may be interchanged.

Referring to fig. 2, the pressing structure 100 includes a pressing plate 10 and a buckle 20. The clamp plate 10 can the joint in buckle 20, and buckle 20 forms limiting displacement to clamp plate 10 in the Z axle direction for clamp plate 10 butt is in female connector, thereby is in the same place the male connector pressfitting on female connector and the circuit board 210, prevents that female connector pine from taking off.

The clip 20 is fixed on the circuit board 210 and located at one side of the connector 220. Specifically, the clip 20 and the circuit board 210 may be fixedly connected by gluing or welding. Alternatively, the clip 20 is fixed to the circuit board 210 by screwing. The buckle 20 comprises the mounting part 21, the mounting part 21 is attached to the circuit board 210, the contact area between the buckle 20 and the circuit board 210 can be increased, and the buckle 20 is conveniently and fixedly mounted on the circuit board 210. In one embodiment, the number of the mounting portions 21 is 2, and the 2 mounting portions 21 are symmetrically arranged to enhance the connection stability between the clip 20 and the circuit board 210.

Referring to fig. 3, the clip 20 is substantially annular and forms an engaging space 20 a.

In an embodiment, the pressing plate 10 includes a main body portion 12 and a matching portion 13, the matching portion 13 is connected to the main body portion 12 in a bending manner, and the matching portion 13 is opened with a clamping groove 11. Specifically, the main body 12 and the matching portion 13 may be vertically disposed, or the main body 12 and the matching portion 13 form an included angle, and the included angle is 90 ± 5 °. The engaging portion 13 is bent with respect to the main body 12, so that the engaging portion 13 can be easily inserted into the engaging space 20 a. In another embodiment, referring to fig. 4, the pressing plate 10 is a flat plate structure, the pressing plate 10 includes a matching portion 13, and the matching portion 13 is provided with a clamping groove 11.

The buckle 20 includes an engaging portion 22 and a guiding portion 23 which are oppositely arranged, the engaging portion 22 and the guiding portion 23 can be elastically expanded to form an opening 20b communicated with the engaging space 20a, and the matching portion 13 can enter the engaging space 20a from the opening 20 b. The guiding portion 23 guides the matching portion 13, so that the matching portion 13 can move towards the direction close to the engaging portion 22 in the process of entering the engaging space 20a, so that the engaging groove 11 is engaged with the engaging portion 22.

During assembly of the press-fit structure 100, the press plate 10 is fitted over the connector 220, and the mating portion 13 is aligned with the region between the engaging portion 22 and the guide portion 23. The pressing plate 10 is pressed downward, and the engaging portion 22 and the guide portion 23 are opened by the pressing action of the engaging portion 13. And then the fitting portion 13 enters the engaging space 20a along the guide portion 23. In the process that the fitting portion 13 enters the engaging space 20a, the guide portion 23 and the engaging portion 22 are elastically restored and closed. In the process that the matching part 13 moves downwards along the guide part 23, the guide part 23 is close to the clamping part 22 under the action of elastic restoring force, and the matching part 13 is pushed to move towards the direction close to the clamping part 22, so that the clamping connection between the clamping groove 11 and the clamping part 22 is realized. The clamping portion 22 is matched with the clamping groove 11, so that the clamping buckle 20 has a limiting effect on the pressing plate 10 in the Z-axis direction, the pressing plate 10 is abutted to the connector 220, and the purpose of preventing the connector 220 from loosening is achieved. This pressfitting structure 100 only needs can realize the assembly of clamp plate 10 and buckle 20 through once pressing the action, and convenient and fast is favorable to improving packaging efficiency.

Further, the engaging portion 22 and the guide portion 23 are elastically abutted so that when the fitting portion 13 enters the engaging space 20a along the free end 231 of the guide portion 23, the engaging portion 22 and the guide portion 23 elastically spread apart from each other by the pressing action of the fitting portion 13 so that the fitting portion 13 enters the engaging space 20 a. When the engaging end 221 and the engaging groove 11 are engaged in place, the engaging portion 22 and the guiding portion 23 are no longer pressed by the engaging portion 13 and return to the original shape, i.e. elastically return to the abutting state, so as to limit the engaging portion 13 from easily moving out of the engaging space 20a, thereby ensuring the pressing effect on the connector 200. In other embodiments, the engaging portion 22 and the guiding portion 23 may be formed with a certain gap.

In an embodiment, the clip 20 may be integrally formed by a metal spring, so that the guiding portion 23 and the engaging portion 22 can be elastically deformed, and the guiding portion 23 and the engaging portion 22 can move closer to or away from each other. The metal elastic sheet can be made of stainless steel. Specifically, the guide portion 23 moves away from the engaging portion 22 by an external force, so that the engaging portion 13 can be easily inserted into the engaging space 20 a. After the pressing plate 10 is installed in place, the guide portion 23 and the clamping portion 22 reset, the distance between the guide portion 23 and the clamping portion 22 is reduced, the matching portion 13 can be limited, and the matching portion 13 is prevented from being separated from the buckle 20 when the pressing plate 10 is interfered by external factors such as vibration. Alternatively, the buckle 20 may be made of plastic material and manufactured by injection molding. In another embodiment, the guide portion 23 and the engaging portion 22 may be separate structures, the guide portion 23 and the engaging portion 22 are hinged to each other, and an elastic element is disposed between the guide portion 23 and the engaging portion 22.

Referring to fig. 5, the guiding portion 23 includes a free end 231 and a first connecting wall 232, the free end 231 is connected to the engaging portion 22, and the first connecting wall 232 is connected to the engaging portion 22, and the free end 231 is deflected toward a side away from the engaging portion 22. Specifically, the catch 20 is placed in a forward orientation, i.e. with the mounting portion 21 of the catch 20 facing downward, and the free end 231 is at an angle α of less than 90 ° to the horizontal. In other words, the free end 231 is disposed obliquely so that the engagement portion 13 slides along the free end 231, resulting in an obliquely downward displacement, which can be decomposed into a vertical descending movement and a horizontal translational movement. In the descending process of the matching part 13, the matching part is translated towards the direction close to the clamping part 22, so that the clamping groove 11 arranged on the matching part 13 can be clamped with the clamping part 22.

The engaging portion 22 includes an engaging end 221 and a second connecting wall 222, the engaging end 221 is received in the engaging groove 11, and the second connecting wall 222 is connected to the first connecting wall 232. When the buckle 20 is placed in the forward direction, the side of the free end 231 close to the first connecting wall 232 is lower than the engaging end 221, i.e. the distance d from the free end 231 to the mounting portion 21 is smaller than the distance h from the engaging end 221 to the mounting portion 21, so as to ensure that the engaging end 221 can completely enter the engaging groove 11 when the matching portion 13 moves to the end of the free end 231.

In an embodiment, the engaging end 221 is a curled edge, an end portion of the curled edge far from the second connecting wall 222 inclines upward, an included angle θ smaller than 90 ° is formed between the end of the curled edge and the second connecting wall 222, and the end of the curled edge and the second connecting wall 222 play a role in guiding the matching portion 13, so that the engaging groove 11 and the engaging end 221 are conveniently engaged. Meanwhile, a clamping limiting effect is formed on the matching part 13, and the matching part 13 is prevented from being separated from the buckle 20. In another embodiment, referring to fig. 6, the engaging end 221 is bent relative to the second connecting wall 222, and the engaging end 221 is a plate-shaped structure and is inclined toward one side of the mounting portion 21. The engaging end 221 and the free end 231 form a V-shaped structure, which guides the engaging portion 13 to facilitate the engaging portion 13 to enter the engaging space 20 a. After the clamping groove 11 is clamped with the clamping end 221, the clamping end 221 arranged obliquely can limit the matching part 13, and the matching part 13 is prevented from being separated from the buckle 20.

For convenient assembly, the main body 12 is provided with an avoiding opening 121 communicated with the clamping groove 11, and the avoiding opening 121 is used for accommodating the clamping end 221.

In an embodiment, the number of the clips 20 is 2, 2 clips 20 are arranged at intervals, two ends of the pressing plate 10 are respectively clipped on one of the clips 20, and the middle portion of the pressing plate 10 abuts against the connector 220, so as to press the connector 220 on the circuit board 210.

In another embodiment, referring to fig. 3, the pressing structure 100 further includes a support 30, and the support 30 is fixed on the circuit board 210 and located on the other side of the connector 220. Specifically, the bracket 30 and the circuit board 210 may be fixedly connected by gluing or welding. Alternatively, the bracket 30 may be fixed to the circuit board 210 by screwing. The bracket 30 comprises a folding edge 31, and the folding edge 31 is attached to the circuit board 210 to increase the contact area between the bracket 30 and the circuit board 210, so that the bracket 30 is conveniently installed and fixed on the circuit board 210.

The bracket 30 is provided with a socket 32, one end of the main body 12 away from the matching part 13 is provided with a socket part 14, and the socket part 14 can be inserted into the socket 32. The bracket 30 is used for limiting the pressing plate 10 along the Z-axis direction, so that the pressing plate 10 is more stably mounted. It should be noted that the socket 32 and the flange 31 are located in different planes.

When the matching part 13 moves along the guiding part 23, the inserting part 14 can move along the length direction of the pressing plate 10 in the inserting opening 32, so that the clamping part 22 is clamped with the clamping groove 11. The longitudinal direction of the platen 10 is the X-axis direction in fig. 2.

The socket 14 forms a step structure with the main body 12, which can abut against the bracket 30 to define the position of the pressure plate 10 in the horizontal direction. At the same time, the distance between the body 12 and the circuit board 210 can be increased to accommodate the height of the connector 220.

In one embodiment, the assembly process of the press-fit structure 100 is as follows: inserting one end of the pressure plate 10 into the inserting port 32 of the bracket 30; the other end of the pressing plate 10 is pressed downward, so that the matching portion 13 slides along the guiding portion 23 of the buckle 20 to enter the clamping space 10a, and the clamping groove 11 formed on the matching portion 13 is clamped with the clamping portion 22 of the buckle 20. The bracket 30 and the buckle 20 together limit the pressure plate 10 along the Z-axis direction, so that the pressure plate 10 firmly presses the connector 220 on the circuit board 210, and the connector 220 is prevented from falling off.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A laminated structure, comprising:

the bracket is provided with a plug interface;

2. A laminated structure according to claim 1, wherein the guide portion includes a free end and a first connecting wall connected to the engaging portion, the free end being biased toward a side away from the engaging portion.

3. The laminated structure of claim 2, wherein the engaging portion includes an engaging end and a second connecting wall, the engaging end is engaged with the engaging groove, the second connecting wall is connected to the first connecting wall, and when the buckle is placed in the forward direction, a side of the free end adjacent to the first connecting wall is lower than the engaging end.

4. The laminated structure of claim 3, wherein the snap end is a bead, the bead sloping upward away from the end of the second connecting wall when the clip is placed in the forward direction.

5. A laminated structure according to claim 3, wherein the engaging end is a plate-like structure and is disposed obliquely toward the second connecting wall.

6. A laminated structure according to claim 1, wherein the clip is an integral structure formed by bending a metal spring.

7. The compression structure of claim 1, wherein the engaging portion and the guiding portion are in resilient abutment.

8. A compression arrangement according to claim 1, wherein the spigot portion and the body portion form a stepped formation which can abut against the support.

9. A circuit board assembly, comprising:

a circuit board;

the connector is arranged on the circuit board; and

the press-fit structure of any one of claims 1 to 8, wherein the clip is fixed to the circuit board, one end of the pressing plate is inserted into the bracket, and the other end of the pressing plate is engaged with the clip, so as to press-fit the connector onto the circuit board.

10. A mobile terminal comprising the circuit board assembly of claim 9.