CN108307585B

CN108307585B - Electronic equipment and circuit board assembly thereof

Info

Publication number: CN108307585B
Application number: CN201810075235.5A
Authority: CN
Inventors: 白露; 姜宇; 冉可; 陈乾强; 彭运辉; 曾永冬
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2018-01-24
Filing date: 2018-01-24
Publication date: 2020-02-11
Anticipated expiration: 2038-01-24
Also published as: CN108307585A

Abstract

The application provides an electronic equipment and circuit board assembly thereof, this circuit board assembly includes: a circuit board, a BTB connector, and a platen assembly; this BTB connector sets firmly in the circuit board, and the clamp plate subassembly includes main clamp plate and assistance clamp plate, assist the clamp plate with circuit board fixed connection, the one end of main clamp plate with the circuit board is connected, the other end crimping in assist the clamp plate with between the circuit board, main clamp plate lid is established on the BTB connector, be used for with the BTB connector compress tightly in on the circuit board. This circuit board assembly passes through the BTB connector clamp plate structure of the ingenious pressfitting joint formula of project organization, can realize very conveniently that BTB clamp plate is fixed and dismantle, has saved the use amount of screw, great reduction because of the screw is lost the risk that causes the complete machine short circuit.

Description

Electronic equipment and circuit board assembly thereof

Technical Field

The invention relates to the technical field of a fixing structure of a board-to-board connector of electronic equipment, in particular to electronic equipment and a circuit board assembly thereof.

Background

Terminal electronic devices such as mobile phones and tablet computers generally require connection between two or more circuit boards through a BTB (Board To Board) connector. For example, in a mobile phone structure, a sub circuit board carrying or connected with a functional element is usually electrically connected to a main board through a BTB connector, but the BTB connector often has a problem of instability, so that the circuit board is easily disconnected from the main board. In the common cooking in the prior art, the BTB connector is directly screwed with the main board through a screw, and the pressure of the screw is shared by the BTB connector, so that the stability of the BTB connector is enhanced; or the cover is arranged on the BTB connector through a pressing plate structure, and the pressing plate is usually fixed on a circuit board or a middle frame and the like through screws.

However, in the assembly process of the whole mobile phone, the process of fixing the screws is usually performed at the final stage, and if the screws fall off in the screwing process, the screws are left on the main board or the circuit board due to the reason that the screws are difficult to take out or are not noticed, which easily causes short circuit of other electronic devices and causes safety accidents of the whole mobile phone.

Disclosure of Invention

An aspect of an embodiment of the present application provides a circuit board assembly, including:

a circuit board;

the BTB connector is fixedly arranged on the circuit board;

the pressing plate assembly comprises a main pressing plate and an auxiliary pressing plate, the auxiliary pressing plate is fixedly connected with the circuit board, one end of the main pressing plate is connected with the circuit board, the other end of the main pressing plate is in pressing connection with the auxiliary pressing plate and the circuit board, and the main pressing plate is covered on the BTB connector and used for pressing the BTB connector on the circuit board.

In another aspect, an electronic device is further provided, where the electronic device includes the circuit board assembly in any one of the above embodiments.

The electronic equipment and the circuit board assembly thereof that this application embodiment provided, through the BTB connector clamp plate structure of the ingenious pressfitting joint formula of project organization, can realize the BTB clamp plate very conveniently fixed with dismantle, saved the use amount of screw, great reduction because of the screw is lost the risk that causes the complete machine short circuit.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used 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 invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of an overall structure of an embodiment of a circuit board assembly for an electronic device according to the present application;

FIG. 2 is an isometric view of the circuit board assembly of the embodiment of FIG. 1;

FIG. 3 is an enlarged schematic view of a portion of the circuit board assembly of FIG. 2;

FIG. 4 is a disassembled schematic view of the circuit board assembly of FIG. 2;

FIG. 5 is a schematic axial view of the main platen in the embodiment of FIG. 1;

FIG. 6 is a schematic side view of the main platen in the embodiment of FIG. 1;

FIG. 7 is an isometric view of the main platen structure of FIG. 5 from another perspective;

FIG. 8 is an enlarged schematic view of a portion of another embodiment of a circuit board assembly of the present application;

FIG. 9 is a schematic axial view of the main platen of the embodiment of FIG. 8;

FIG. 10 is an isometric view of the main platen structure of FIG. 9 from another perspective;

fig. 11 is a schematic overall structure diagram of an embodiment of the electronic device of the present application.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be noted that the following examples are only illustrative of the present invention, and do not limit the scope of the present invention. Also, the following examples are only some but not all examples of the present invention,

all other embodiments obtained by a person skilled in the art without making any inventive step are within the scope of protection of the present invention.

The terms "first", "second" and "third" in the present invention 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," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. All directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are only used to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

Example 1

Referring to fig. 1 and fig. 2 together, fig. 1 is a schematic front view of an overall structure of an embodiment of a circuit board assembly for an electronic device according to the present application, and fig. 2 is a schematic side view of the circuit board assembly in the embodiment of fig. 1; it should be noted that, the electronic device in the present application may include an electronic device with a BTB connector, such as a mobile phone, a tablet computer, a notebook computer, a desktop computer, and a wearable device. The circuit board assembly for an electronic device in the present embodiment includes a circuit board 110, a BTB connector 120, and a platen assembly 130.

The BTB connector 120 is fixedly disposed on the circuit board 110, the BTB connector 120 can be connected to the flexible flat cable 140, and the pressing plate assembly 130 is used for pressing the BTB connector 120 onto the circuit board 110, so as to prevent the BTB connector 120 from being separated from the flexible flat cable 140 or the BTB connector 120 from being buckled.

Further, referring to fig. 3 and fig. 4 together, fig. 3 is an enlarged schematic view of a partial structure of the circuit board assembly in fig. 2; FIG. 4 is a disassembled schematic view of the circuit board assembly of FIG. 2, the platen assembly 130 including a primary platen 131 and a secondary platen 132; auxiliary pressure plate 132 is fixed on circuit board 110, main pressure plate 131 covers BTB connector 120, and through press fit with auxiliary pressure plate 132, BTB connector 120 is pressed on circuit board 110. Specifically, one end of the main pressing plate 131 is connected to the circuit board 110, and the other end is pressed between the auxiliary pressing plate 132 and the circuit board 110. Alternatively, the auxiliary pressure plate 132 is fixedly connected to the circuit board 110 by screws (not shown).

Referring to fig. 3, 5 and 6, fig. 5 is a schematic structural axial view of the main pressure plate in the embodiment of fig. 1, and fig. 6 is a schematic structural side view of the main pressure plate in the embodiment of fig. 1, in which the main pressure plate 131 includes a main body portion 1311, a first connecting portion 1312 and a second connecting portion 1313 which are integrally formed; the first connection portion 1312 is fixedly connected to the circuit board 110, and optionally, the first connection portion 1312 may be fixedly connected to the circuit board 110 by bonding or by screwing. The first connecting portion 1312 and the circuit board 110 in the embodiment are connected by screws (not shown); the first connecting portion 1312 is provided with a through hole 13121, and a screw passes through the through hole 13121 to be connected to the circuit board 110.

A second connection part 1313 is crimped between the auxiliary pressure plate 132 and the circuit board 110, the second connection part 1313 including a connection arm 13131, an abutment arm 13132, and a biasing arm 13133; one end of connecting arm 13131 is connected to an edge of main portion 1311, and an extending direction of connecting arm 13131 is not parallel to an extending direction of a plane in which main portion 1311 is located, in this embodiment, the extending direction of connecting arm 13131 may be perpendicular to the extending direction of the plane in which main portion 1311 is located, or may be at a certain angle.

The other end of the connecting arm 13131 is connected to the contact arm 13132, the other end of the contact arm 13132 is connected to the biasing arm 13133, the contact arm 13132 is in contact with the circuit board 110, and the biasing arm 13133 is pressed between the sub-pressure plate 132 and the circuit board 110. The main pressing plate 131 is made of stainless steel or plastic with excellent elasticity and hardness.

Further, with continued reference to fig. 5 and 6, the abutting arm 13132 and the pressing arm 13133 are connected by a bridging arm 13134, and the abutting arm 13132, the bridging arm 13134 and the pressing arm 13133 are provided with an integrally extending abutting table 13130 protruding toward one side of the circuit board 110. The abutment stage 13130 can increase the strength of the abutment arm 13132, the bridging arm 13134, and the biasing arm 13133, and can serve as an abutment position between the abutment arm 13132 and the circuit board 110.

Optionally, the main body 1311 is further provided with a pressing table 13111 protruding toward the side of the BTB connector 120, and the main pressing plate 131 presses the BTB connector 120 via the pressing table 13111. In this embodiment, the pressing table 13111 may be formed by being integrally formed with the main body 1311 by pressing, that is, the main body 1311 may have a uniform thickness at the pressing table 13111 and other positions; in other embodiments, the position of the pressing platform 13111 may be a protrusion with a larger thickness than other positions, and it is understood by those skilled in the art that the illustration is not described in detail here.

Further, referring to fig. 6 and 7, fig. 7 is an axial view of the main platen structure of fig. 5 from another perspective; the main body 1311 of the main pressing plate 131 is provided with a shielding portion 1314 extending toward the BTB connector 120, and the shielding portion 1314 serves to protect the BTB connector 120 from the side. And on the other hand, for increasing the strength of the body portion 1311. Alternatively, the extending direction of the shielding portion 1314 may be a direction perpendicular to the plane of the main body portion 1311.

The circuit board assembly provided by the embodiment of the application can conveniently realize the fixation and the disassembly of the BTB pressing plate through the pressing and clamping type BTB connector pressing plate structure with an ingenious design structure, so that the use amount of screws is saved, and the risk of the whole machine short circuit caused by the falling of the screws is greatly reduced.

Example 2

Referring to fig. 8, fig. 8 is an enlarged partial structure schematic view of another embodiment of a circuit board assembly according to the present application, in which the circuit board assembly for an electronic device includes a circuit board 110, a BTB connector 120, and a pressing plate assembly 130.

The BTB connector 120 is fixed on the circuit board 110, the BTB connector 120 can be connected to a flexible flat cable, and the pressing plate assembly 130 is used for pressing the BTB connector 120 on the circuit board 110, so as to prevent the BTB connector 120 from being separated from the flexible flat cable or the BTB connector 120 from being buckled.

Optionally, the platen assembly 130 includes a primary platen 131 and a secondary platen 132; auxiliary pressure plate 132 is fixed on circuit board 110, main pressure plate 131 covers BTB connector 120, and through press fit with auxiliary pressure plate 132, BTB connector 120 is pressed on circuit board 110. Specifically, one end of the main pressing plate 131 is connected to the circuit board 110, and the other end is pressed between the auxiliary pressing plate 132 and the circuit board 110. Alternatively, the auxiliary pressure plate 132 is fixedly connected to the circuit board 110 by screws.

Referring to fig. 8 and 9, fig. 9 is a schematic axial view of the main pressure plate in the embodiment of fig. 8, in which the main pressure plate 131 includes a main body 1311, a first connecting portion 1312, and a second connecting portion 1313; the first connection portion 1312 is fixedly connected to the circuit board 110, and optionally, the first connection portion 1312 may be fixedly connected to the circuit board 110 by bonding or by screwing. The first connecting portion 1312 and the circuit board 110 in the embodiment are connected by screws; the first connecting portion 1312 is provided with a through hole 13121, and a screw passes through the through hole 13121 to be connected to the circuit board 110.

Alternatively, with continued reference to fig. 8 and 9, the abutting arm 13132 and the pressing arm 13133 are connected by a bridging arm 13134, and the abutting arm 13132, the bridging arm 13134 and the pressing arm 13133 are provided with an integrally extending abutting stage 13130 protruding toward one side of the circuit board 110. The abutment stage 13130 can increase the strength of the abutment arm 13132, the bridging arm 13134, and the biasing arm 13133, and can serve as an abutment position between the abutment arm 13132 and the circuit board 110.

Wherein, still be equipped with on the arm 13133 and support the protruding 131331 of location that the clamp plate 132 direction extended towards arm 13133 butt of suppressing, be equipped with constant head tank 1321 on the supplementary clamp plate 132, location protruding 131331 realizes the location of main clamp plate 131 on parallel circuit board 110 plane direction with the cooperation of constant head tank 1321. The positioning protrusion 131331 in this embodiment is formed by bending the sides of the pair of pressing arms 13133. In other embodiments, the positioning protrusion 131331 can be a protruding structure formed on the surface of the snap arm 13133.

Further, referring to fig. 9 and 10, fig. 10 is an axial view of the main platen structure of fig. 9 from another perspective; the main body 1311 of the main pressing plate 131 is provided with a shielding portion 1314 extending toward the BTB connector 120, and the shielding portion 1314 serves to protect the BTB connector 120 from the side. And on the other hand, for increasing the strength of the body portion 1311. Alternatively, the extending direction of the shielding portion 1314 may be a direction perpendicular to the plane of the main body portion 1311.

Compared with the previous embodiment, in the circuit board assembly in the embodiment, the positioning protrusion is further arranged on the elastic pressing arm of the main pressing plate, the positioning groove is arranged on the auxiliary pressing plate, and the positioning protrusion and the positioning groove are matched to realize the positioning of the main pressing plate in the plane direction parallel to the circuit board. The positioning and fixing position of the main pressure plate are more reliable.

Further, an electronic device is provided in an embodiment of the present application, please refer to fig. 11, where fig. 11 is a schematic view of an overall structure of an embodiment of the electronic device of the present application, the electronic device may be a mobile phone, a tablet computer, a notebook computer, a wearable device, and the like, and the embodiment illustrates a mobile phone as an example. The electronic device may include a screen 1001, a terminal housing, and the circuit board assembly in the above embodiments (the circuit board assembly is disposed inside the terminal housing and therefore not shown). With regard to specific structural features of the circuit board assembly, reference is made to the above description of the embodiments of the circuit board assembly, and detailed descriptions thereof will not be provided herein.

According to the electronic equipment provided by the embodiment, the circuit board assembly of the electronic equipment can be fixed and detached conveniently through the pressing and clamping type BTB connector pressing plate structure with the ingenious design structure, the using amount of screws is saved, and the risk of short circuit of the whole machine caused by the fact that the screws are lost is greatly reduced.

The above description is only a part of the embodiments of the present invention, and not intended to limit the scope of the present invention, and all equivalent devices or equivalent processes performed by the present invention through the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A circuit board assembly, comprising:

a circuit board;

the BTB connector is fixedly arranged on the circuit board;

the pressing plate assembly comprises a main pressing plate and an auxiliary pressing plate, the auxiliary pressing plate is fixedly connected with the circuit board, one end of the main pressing plate is connected with the circuit board, the other end of the main pressing plate is in press connection between the auxiliary pressing plate and the circuit board, and the main pressing plate is covered on the BTB connector and used for pressing the BTB connector on the circuit board; the main pressure plate comprises a main body part, a first connecting part and a second connecting part which are of an integrated structure; the first connecting part is fixedly connected with the circuit board, and the second connecting part is pressed between the auxiliary pressure plate and the circuit board; the second connecting part comprises a connecting arm, an abutting arm and a spring pressing arm; one end of the connecting arm is connected with the edge of the main body part, the extending direction of the connecting arm is not parallel to the extending direction of the plane where the main body part is located, the other end of the connecting arm is connected with the abutting arm, the other end of the abutting arm is connected with the elastic pressing arm, the abutting arm abuts against the circuit board, and the elastic pressing arm is pressed between the auxiliary pressing plate and the circuit board; the elastic pressing arm is provided with a positioning bulge which faces the direction of the elastic pressing arm and is abutted against the auxiliary pressing plate, the auxiliary pressing plate is provided with a positioning groove, and the positioning bulge is matched with the positioning groove.

2. The circuit board assembly of claim 1, wherein the abutting arm and the biasing arm are connected by a lapping arm, and the abutting arm, the lapping arm and the biasing arm are provided with an integrally extending abutting platform protruding towards one side of the circuit board.

3. The circuit board assembly of claim 1, wherein the first connection portion is connected to the circuit board by a screw; the first connecting portion is provided with a through hole, and the screw penetrates through the through hole to be connected with the circuit board.

4. A circuit board assembly according to any one of claims 1 to 3, wherein the main body portion is provided with a pressing table protruding toward a side of the BTB connector, and the main pressing plate presses the BTB connector via the pressing table.

5. A circuit board assembly according to any of claims 1 to 3, wherein the primary pressure plate is of stainless steel or plastic.

6. A circuit board assembly according to any of claims 1 to 3, wherein the secondary pressure plate is fixedly attached to the circuit board by screws.

7. An electronic device, characterized in that the electronic device comprises a circuit board assembly according to any one of claims 1-6.