CN108307585B - Electronic equipment and circuit board assembly thereof - Google Patents

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 devices and their circuit board assemblies

technical field

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

Background technique

Terminal electronic devices such as mobile phones and tablet computers usually need to connect two or more circuit boards through BTB (Board To Board, board-to-board) connectors. For example, in the structure of a mobile phone, a sub-circuit board carrying or connected with functional elements is usually electrically connected to the main board through a BTB connector. However, the BTB connector is often unstable, which makes the circuit board and the main board easily disconnected. The commonly used cooking method in the prior art is to directly screw the BTB connector with the motherboard through screws, and share the screw pressure to the BTB connector, thereby enhancing the stability of the BTB connector; or cover the BTB connector through a pressure plate structure. On the device, and the pressure plate is usually fixed on the circuit board or the middle frame with screws.

However, in the assembly process of the whole mobile phone, the screw fixing process is usually carried out in the final stage. If it is dropped during the screwing process, it will be left on the main board or circuit board due to difficult removal or unawareness. This can easily cause short circuit of other electronic devices and cause safety accidents of the whole machine.

SUMMARY OF THE INVENTION

One aspect of the embodiments of the present application provides a circuit board assembly, including:

circuit board;

BTB connector, fixed on the circuit board;

The pressure plate assembly includes a main pressure plate and an auxiliary pressure plate, the auxiliary pressure plate is fixedly connected with the circuit board, one end of the main pressure plate is connected with the circuit board, and the other end is crimped between the auxiliary pressure plate and the circuit board. During this time, the main pressing plate cover is arranged on the BTB connector for pressing the BTB connector on the circuit board.

Another aspect of the embodiments of the present application further provides an electronic device, where the electronic device includes the circuit board assembly described in any one of the foregoing embodiments.

For the electronic device and its circuit board assembly provided by the embodiments of the present application, by designing an ingenious press-fit and snap-on BTB connector pressure plate structure, the BTB pressure plate can be easily fixed and disassembled, and the usage of screws can be saved. Greatly reduces the risk of short circuit of the whole machine due to missing screws.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

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

FIG. 2 is an axial schematic view of the circuit board assembly in the embodiment of FIG. 1;

3 is an enlarged schematic diagram of a partial structure of the circuit board assembly in FIG. 2;

Fig. 4 is the structural disassembly schematic diagram of the circuit board assembly in Fig. 2;

Fig. 5 is the structural axial side schematic diagram of the main pressing plate in the embodiment of Fig. 1;

6 is a schematic side view of the structure of the main pressure plate in the embodiment of FIG. 1;

FIG. 7 is an axial schematic view of the main pressure plate structure in another perspective in FIG. 5;

8 is an enlarged schematic diagram of a partial structure of another embodiment of the circuit board assembly of the present application;

Fig. 9 is the structural axial side schematic diagram of the main pressure plate in the embodiment of Fig. 8;

Fig. 10 is the axial side schematic diagram of another view of the main pressure plate structure in Fig. 9;

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

Detailed ways

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is particularly pointed out that the following examples are only used to illustrate the present invention, but do not limit the scope of the present invention. Likewise, the following embodiments are only some but not all embodiments of the present invention,

All other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The terms "first", "second" and "third" in the present invention are only used for description purposes, and should not be understood as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first", "second", "third" may expressly or implicitly include at least one of that feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship between various components under a certain posture (as shown in the accompanying drawings). , motion situation, etc., if the specific posture changes, the directional indication also changes accordingly. Furthermore, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally also includes For other steps or units inherent to these processes, methods, products or devices.

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 present invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor a separate or alternative embodiment that is mutually exclusive of other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

Example 1

Please refer to FIG. 1 and FIG. 2 together. FIG. 1 is a schematic front view of the overall structure of an embodiment of a circuit board assembly for electronic equipment of the present application, and FIG. 2 is an axial schematic diagram of the circuit board assembly in the embodiment of FIG. 1; It is true that the electronic devices in this application may include mobile phones, tablet computers, notebook computers, desktop computers, wearable devices and other electronic devices with BTB connectors. The circuit board assembly used for the electronic device in this embodiment includes a circuit board 110 , a BTB connector 120 and a pressure plate assembly 130 .

The BTB connector 120 is fixed on the circuit board 110 , the BTB connector 120 can be connected to the flexible cable 140 , and the pressing plate assembly 130 is used to press the BTB connector 120 on the circuit board 110 to prevent the BTB connector 120 from being connected to the flexible cable 140 . The flat cable 140 is disconnected or the snap-fit of the BTB connector 120 itself is not reliable.

Further, please refer to FIG. 3 and FIG. 4 together. FIG. 3 is an enlarged schematic diagram of a partial structure of the circuit board assembly in FIG. 2 ; FIG. 4 is a schematic structural disassembly of the circuit board assembly in FIG. 2 , and the pressure plate assembly 130 includes a main pressure plate. 131 and the auxiliary pressure plate 132; the auxiliary pressure plate 132 is fixed on the circuit board 110, the main pressure plate 131 is covered on the BTB connector 120, and the BTB connector 120 is pressed against the circuit board by crimping and fitting with the auxiliary pressure plate 132 110 on. Specifically, one end of the main pressure plate 131 is connected to the circuit board 110 , and the other end is crimped between the auxiliary pressure plate 132 and the circuit board 110 . Optionally, the auxiliary pressing plate 132 is fixedly connected to the circuit board 110 through screws (not shown in the figure).

Please refer to FIG. 3 , FIG. 5 and FIG. 6 together. FIG. 5 is a schematic axial side view of the structure of the main pressure plate in the embodiment of FIG. 1 , and FIG. 6 is a schematic side view of the structure of the main pressure plate in the embodiment of FIG. 1 . The main pressure plate 131 includes The main body portion 1311, the first connecting portion 1312, and the second connecting portion 1313 are integrally structured; the first connecting portion 1312 is fixedly connected to the circuit board 110, optionally, the fixed connection form of the first connecting portion 1312 and the circuit board 110 can be Glue or screw connection etc. In this embodiment, the first connecting portion 1312 is connected with the circuit board 110 by screws (not shown in the figure);

The second connecting portion 1313 is crimped between the auxiliary pressing plate 132 and the circuit board 110 . The second connecting portion 1313 includes a connecting arm 13131 , an abutting arm 13132 and an elastic pressing arm 13133 ; one end of the connecting arm 13131 is connected to the edge of the main body portion 1311 . The extending direction of the connecting arm 13131 is not parallel to the extending direction of the plane where the main body portion 1311 is located.

The other end of the connecting arm 13131 is connected to the abutting arm 13132 , the other end of the abutting arm 13132 is connected to the pressing arm 13133 , the abutting arm 13132 is in contact with the circuit board 110 , and the pressing arm 13133 is pressed against the auxiliary pressing plate 132 and the circuit board 110 . between. Wherein, the material of the main pressing plate 131 has excellent elasticity and hardness, and can be stainless steel or plastic.

Further, please continue to refer to FIG. 5 and FIG. 6 , the abutting arm 13132 and the spring pressing arm 13133 are connected by a lap arm 13134, and the abutting arm 13132, the lap arm 13134 and the spring pressing arm 13133 are provided with integrally extending The abutting table 13130 protruding toward the side of the circuit board 110 . On the one hand, the abutting table 13130 can increase the strength of the abutting arm 13132 , the lap arm 13134 and the pressing arm 13133 , and on the other hand serve as an abutting position between the abutting arm 13132 and the circuit board 110 .

Optionally, the main body portion 1311 is further provided with a pressing table 13111 protruding toward one side of the BTB connector 120 , and the main pressing plate 131 presses the BTB connector 120 through the pressing table 13111 . In this embodiment, the pressing table 13111 may be formed by stamping integrally with the main body portion 1311 , that is, the thickness of the main body portion 1311 at the pressing table 13111 position and other positions is uniform; in other embodiments, the position of the pressing table 13111 It may also be a protrusion with a thicker thickness than other positions, which is within the understanding of those skilled in the art, and will not be described in detail here with illustrations.

Further, please refer to FIG. 6 and FIG. 7 together. FIG. 7 is an axial schematic diagram of the main pressure plate structure in FIG. 5 from another perspective; The shielding portion 1314, the function of the shielding portion 1314 is, on the one hand, to protect the BTB connector 120 from the side. On the other hand, it is used to increase the strength of the main body portion 1311 . Optionally, the extending direction of the shielding portion 1314 may be a direction perpendicular to the plane where the main body portion 1311 is located.

In the circuit board assembly provided by the embodiment of the present application, by designing the BTB connector pressing plate structure of the ingenious structure, the fixing and dismantling of the BTB pressing plate can be easily realized, the usage of screws is saved, and the Risk of short circuit of the whole machine due to missing screws.

Example 2

Please refer to FIG. 8 . FIG. 8 is an enlarged schematic partial structure of another embodiment of the circuit board assembly of the present application. The circuit board assembly for electronic equipment in this embodiment includes a circuit board 110 , a BTB connector 120 and a pressure plate assembly 130 .

The BTB connector 120 is fixed on the circuit board 110, the BTB connector 120 can be connected to the flexible cable, and the pressing plate assembly 130 is used for pressing the BTB connector 120 on the circuit board 110 to prevent the BTB connector 120 from connecting with the flexible cable. The wire connection is separated or the snap fit of the BTB connector 120 itself is not reliable.

Optionally, the pressure plate assembly 130 includes a main pressure plate 131 and an auxiliary pressure plate 132; the auxiliary pressure plate 132 is fixed on the circuit board 110, and the main pressure plate 131 is covered on the BTB connector 120. The pressing of the BTB connector 120 on the circuit board 110 is achieved. Specifically, one end of the main pressure plate 131 is connected to the circuit board 110 , and the other end is crimped between the auxiliary pressure plate 132 and the circuit board 110 . Optionally, the auxiliary pressure plate 132 is fixedly connected to the circuit board 110 by screws.

Please refer to FIG. 8 and FIG. 9 together. FIG. 9 is a schematic axial view of the structure of the main pressure plate in the embodiment of FIG. 8 . The main pressure plate 131 includes a main body portion 1311 , a first connection portion 1312 and a second connection portion 1313 of an integral structure; The first connection portion 1312 is fixedly connected to the circuit board 110 . Optionally, the fixed connection form of the first connection portion 1312 to the circuit board 110 may be adhesive or screw connection. In this embodiment, the first connecting portion 1312 and the circuit board 110 are connected by screws; the first connecting portion 1312 is provided with a through hole 13121, and the screw is connected to the circuit board 110 through the through hole 13121.

The second connecting portion 1313 is crimped between the auxiliary pressing plate 132 and the circuit board 110 . The second connecting portion 1313 includes a connecting arm 13131 , an abutting arm 13132 and an elastic pressing arm 13133 ; one end of the connecting arm 13131 is connected to the edge of the main body portion 1311 . The extending direction of the connecting arm 13131 is not parallel to the extending direction of the plane where the main body portion 1311 is located.

The other end of the connecting arm 13131 is connected to the abutting arm 13132 , the other end of the abutting arm 13132 is connected to the pressing arm 13133 , the abutting arm 13132 is in contact with the circuit board 110 , and the pressing arm 13133 is pressed against the auxiliary pressing plate 132 and the circuit board 110 . between. Wherein, the material of the main pressing plate 131 has excellent elasticity and hardness, and can be stainless steel or plastic.

Optionally, please continue to refer to FIG. 8 and FIG. 9 , the abutting arm 13132 and the elastic pressing arm 13133 are connected by a lap arm 13134, and the abutting arm 13132, the lap arm 13134 and the elastic pressing arm 13133 are provided with an integral extension The abutment platform 13130 protrudes toward the side of the circuit board 110 . On the one hand, the abutting table 13130 can increase the strength of the abutting arm 13132 , the lap arm 13134 and the pressing arm 13133 , and on the other hand serve as an abutting position between the abutting arm 13132 and the circuit board 110 .

The elastic pressing arm 13133 is also provided with a positioning protrusion 131331 extending toward the direction that the elastic pressing arm 13133 abuts against the auxiliary pressing plate 132 . The auxiliary pressing plate 132 is provided with a positioning groove 1321 . Positioning in the direction parallel to the plane of the circuit board 110 . The positioning protrusions 131331 in this embodiment are formed by integrally bending the side edges of the pair of the elastic pressing arms 13133 . In other embodiments, the positioning protrusion 131331 may also be a structure protruding from the surface of the elastic pressing arm 13133 .

Optionally, the main body portion 1311 is further provided with a pressing table 13111 protruding toward one side of the BTB connector 120 , and the main pressing plate 131 presses the BTB connector 120 through the pressing table 13111 . In this embodiment, the pressing table 13111 may be formed by stamping integrally with the main body portion 1311 , that is, the thickness of the main body portion 1311 at the pressing table 13111 position and other positions is uniform; in other embodiments, the position of the pressing table 13111 It may also be a protrusion with a thicker thickness than other positions, which is within the understanding of those skilled in the art, and will not be described in detail here with illustrations.

Further, please refer to FIG. 9 and FIG. 10 together. FIG. 10 is an axial schematic diagram of the main pressure plate structure in FIG. 9 from another perspective; The shielding portion 1314, the function of the shielding portion 1314 is, on the one hand, to protect the BTB connector 120 from the side. On the other hand, it is used to increase the strength of the main body portion 1311 . Optionally, the extending direction of the shielding portion 1314 may be a direction perpendicular to the plane where the main body portion 1311 is located.

Compared with the previous embodiment, the circuit board assembly in this embodiment is provided with positioning protrusions on the elastic pressing arm of the main pressure plate, and positioning grooves on the auxiliary pressure plate. The positioning of the platen in a direction parallel to the plane of the circuit board. Make the positioning and fixing position of the main pressure plate more reliable.

Further, an embodiment of the present application also provides an electronic device. Please refer to FIG. 11 . FIG. 11 is a schematic diagram of the 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, and a wearable device. etc., the illustration in this embodiment takes a mobile phone as an example. The electronic device may include structures such as a screen 1001 , a terminal casing, and the circuit board assembly in the above-mentioned embodiments (the circuit board assembly is provided inside the terminal casing, so it is not marked in the figure). For the specific structural features of the circuit board assembly, please refer to the relevant description of the above-mentioned embodiments of the circuit board assembly, which will not be described in detail here.

In the electronic device provided in this embodiment, the circuit board assembly of the circuit board assembly can conveniently realize the fixing and dismantling of the BTB pressure plate by designing the BTB connector pressure plate structure of the ingenious structure, which saves the usage of screws, and greatly reduces the use of screws. Reduce the risk of short circuit of the whole machine due to missing screws.

The above descriptions are only part of the embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any equivalent device or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied to other related All technical fields are similarly included in the scope of patent protection of the present invention.

Claims (7)

1. A circuit board assembly, characterized in that, comprising: circuit board; BTB connector, fixed on the circuit board; The pressure plate assembly includes a main pressure plate and an auxiliary pressure plate, the auxiliary pressure plate is fixedly connected with the circuit board, one end of the main pressure plate is connected with the circuit board, and the other end is crimped between the auxiliary pressure plate and the circuit board. During the time, the main pressure plate is covered on the BTB connector and used for pressing the BTB connector on the circuit board; the main pressure plate includes a main body part, a first connection part and a second Two connecting parts; the first connecting part is fixedly connected with the circuit board, the second connecting part is crimped between the auxiliary pressing plate and the circuit board; the second connecting part includes a connecting arm, a A connecting arm and an elastic pressing arm; one end of the connecting arm is connected to the edge of the main body portion, and the extending direction of the connecting arm is not parallel to the extending direction of the plane where the main body portion is located, and the other end of the connecting arm is connected to the edge of the main body portion. The abutting arm is connected, the other end of the abutting arm is connected with the spring pressing arm, the abutting arm is in contact with the circuit board, and the spring pressing arm is pressed against the auxiliary pressing plate and the circuit between the plates; the elastic pressure arm is provided with a positioning protrusion extending toward the direction in which the elastic pressure arm abuts the auxiliary pressure plate, the auxiliary pressure plate is provided with a positioning groove, and the positioning protrusion cooperates with the positioning groove . 2 . The circuit board assembly according to claim 1 , wherein the abutting arm and the elastic pressing arm are connected by an overlapping arm, and the abutting arm, the overlapping arm and the elastic pressing The arm is provided with an integrally extending abutment platform protruding toward one side of the circuit board. 3 . The circuit board assembly according to claim 1 , wherein the first connection part is connected with the circuit board by screws; the first connection part is provided with a through hole, and the screw passes through the circuit board assembly. 4 . The through hole is connected to the circuit board. 4. The circuit board assembly according to any one of claims 1-3, wherein the main body is provided with a pressing table protruding toward one side of the BTB connector, and the main pressing plate passes through the The press table compresses the BTB connector. 5 . The circuit board assembly according to claim 1 , wherein the material of the main pressing plate is stainless steel or plastic. 6 . 6 . The circuit board assembly according to claim 1 , wherein the auxiliary pressure plate is fixedly connected to the circuit board through screws. 7 . 7. An electronic device, characterized in that the electronic device comprises the circuit board assembly according to any one of claims 1-6.

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