CN108321568B

CN108321568B - Electronic equipment and circuit board assembly thereof

Info

Publication number: CN108321568B
Application number: CN201810071284.1A
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: 2020-03-10
Anticipated expiration: 2038-01-24
Also published as: CN108321568A

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; the BTB connector is fixedly arranged on the circuit board; the pressing plate assembly comprises a main pressing plate, a first auxiliary pressing plate and a second auxiliary pressing plate, the first auxiliary pressing plate and the second auxiliary pressing plate are fixedly connected with the circuit board respectively, the two opposite sides of the main pressing plate are connected with the first auxiliary pressing plate and the second auxiliary pressing plate in a clamped mode respectively, and the main pressing plate is arranged on the BTB connector in a covering mode and used for pressing the BTB connector onto the circuit board. The clamping type BTB pressing plate structure with the ingenious design structure can conveniently realize the fixation and the disassembly of the BTB pressing plate, saves fixing screws, and reduces the risk of short circuit of the whole machine caused by the falling of the screws.

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, a first auxiliary pressing plate and a second auxiliary pressing plate, wherein the first auxiliary pressing plate and the second auxiliary pressing plate are respectively fixedly connected with the circuit board, the two opposite sides of the main pressing plate are respectively connected with the first auxiliary pressing plate and the second auxiliary pressing plate in a clamping mode, 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 ingenious block-type BTB clamp plate structure of project organization, can realize the BTB clamp plate very conveniently fixed with dismantle, saved set screw, reduced 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 enlarged schematic view of a portion of the circuit board assembly of the embodiment of FIG. 1;

FIG. 3 is an enlarged, partially broken away schematic view of the circuit board assembly of the embodiment of FIG. 1;

FIG. 4 is a schematic front view of the main press plate of the circuit board assembly of FIG. 1;

FIG. 5 is a schematic side view of the main press plate of the circuit board assembly of FIG. 1;

FIG. 6 is a schematic diagram of a second auxiliary pressure plate of the circuit board assembly of the embodiment of FIG. 1;

FIG. 7 is a schematic view of another perspective of a second secondary platen structure of the circuit board assembly of the embodiment of FIG. 1;

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 diagram of the main platen of the embodiment of FIG. 4 from another perspective;

fig. 10 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. Similarly, the following examples are only some but not all examples of the present invention, and all other examples obtained by those skilled in the art without any inventive work are within the scope 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 overall structure diagram of an embodiment of a circuit board assembly for an electronic device according to the present application, and fig. 2 is an enlarged schematic partial structure diagram 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.

Further, referring to fig. 3, fig. 3 is a partially disassembled and enlarged schematic view of the circuit board assembly in the embodiment of fig. 1; 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.

Specifically, the platen assembly 130 includes a main platen 131 and an auxiliary platen 132; auxiliary pressing plate 132 is fixed on circuit board 110, main pressing plate 131 covers BTB connector 120, and BTB connector 120 is pressed on circuit board 110 by clamping fit with auxiliary pressing plate 132.

Optionally, the auxiliary pressure plate 132 further includes a first auxiliary pressure plate 1321 and a second auxiliary pressure plate 1322, the first auxiliary pressure plate 1321 and the second auxiliary pressure plate 1322 are respectively and fixedly connected to the circuit board 110, two opposite sides of the main pressure plate 131 are respectively and fixedly connected to the first auxiliary pressure plate 1321 and the second auxiliary pressure plate 1322, and the main pressure plate 131 covers the BTB connector 120 and is configured to press the BTB connector 120 onto the circuit board 110.

Referring to fig. 4 and 5 together, fig. 4 is a schematic structural front view of the main pressing plate of the circuit board assembly in the embodiment of fig. 1, and fig. 5 is a schematic structural side view of the main pressing plate of the circuit board assembly in the embodiment of fig. 1; the main pressing plate 131 may be made of stainless steel, and the structure thereof specifically includes a main body portion 1311, a first clamping portion 1312 and a second clamping portion 1313, the first clamping portion 1312 and the second clamping portion 1313 integrally extend to two opposite sides of the main body portion 1311, and the first clamping portion 1312 and the second clamping portion 1313 are respectively in clamping fit with the first auxiliary pressing plate 1321 and the second auxiliary pressing plate 1322.

Referring to fig. 6, fig. 6 is a schematic structural diagram of the second auxiliary pressure plate of the circuit board assembly in the embodiment of fig. 1, in which the second clamping portion 1313 extends in a first direction away from the main body portion 1311, and a clamping groove 13220 is formed on a side of the second auxiliary pressure plate 1322 facing the main pressure plate 131, and one end of the second clamping portion 1313 away from the main body portion 1311 is used for being inserted into the clamping groove 13220 to be matched and positioned with the clamping groove 13220. In this embodiment, the second clamping portion 1313 is a "straight" extending plate structure.

Further, referring to fig. 6 and 7 together, fig. 7 is a schematic view of another perspective view of a second auxiliary pressing plate structure of the circuit board assembly in the embodiment of fig. 1; the second auxiliary pressure plate 1322 includes a fixing portion 13221, a first blocking portion 13222, a second blocking portion 13223, a third blocking portion 13224, and a fourth blocking portion 13225, which are integrally formed, the left and right sides of the second blocking portion 13223 are respectively connected to the first blocking portion 13222 and the third blocking portion 13224, the fourth blocking portion 13225 is respectively connected to the top portions of the first blocking portion 13222, the second blocking portion 13223, and the third blocking portion 13224, the bottom portions of the first blocking portion 13222, the second blocking portion 13223, and the third blocking portion 13224 are respectively connected to the fixing portion 13221, and optionally, the extending direction of the fixing portion 13221 is perpendicular to the first blocking portion 13222, the second blocking portion 13223, and the third blocking portion 13224, and is parallel to the fourth blocking portion 13225.

The first blocking portion 13222, the fourth blocking portion 13225, the third blocking portion 13224 and the circuit board 110 together enclose to form a blocking slot 13220, that is, the second auxiliary pressure plate 1322 is a hollow rectangular structure with openings on two sides, four surfaces are respectively enclosed by the first blocking portion 13222, the second blocking portion 13223, the third blocking portion 13224 and the fourth blocking portion 13225, and the other surface is enclosed by the circuit board 110.

Optionally, the second blocking portion 13223 is configured to limit the movement of the second clamping portion 1313 in a first direction, please continue to refer to fig. 3, the first direction is a direction of an X axis in fig. 3, and the first blocking portion 13222 and the third blocking portion 13224 are configured to limit the movement of the second clamping portion 1313 in a second direction, the second direction is a direction of a Y axis in fig. 3, wherein a plane of the X axis and the Y axis is parallel to an extending plane of the circuit board 110 and the main pressing plate 131; the fourth blocking portion 13225 and the circuit board 110 are configured to limit the movement of the second clamping portion 1313 in a third direction, the first, second and third directions are perpendicular to each other, the third direction is perpendicular to a plane (not labeled in the drawing) where the X axis and the Y axis are located, and the fixing portion 13221 is configured to be fixedly connected with the circuit board 110; the fixing connection form of the fixing portion 13221 and the circuit board 110 may be bonding or the like.

With reference to fig. 4 and fig. 5, the side of the first latch 1312 is U-shaped, and the first latch 1312 includes a first side wall 13121, a connecting arm 13122 and a second side wall 13123, the first side wall 13121 is connected to the edge of the main body 1311, the other side is connected to the connecting arm 13122, the other side of the connecting arm 13122 is connected to the second side wall 13123, and the other side of the second side wall 13123 supports against the bottom of the first auxiliary pressure plate 1321 (the side close to the circuit board 110) to limit the movement of the main pressure plate in the third direction (i.e., the direction perpendicular to the plane of the axis X, Y in fig. 3).

Further, the outer side surface of the second side wall 13123 supports the edge of the first auxiliary pressure plate 1321 facing the side of the main pressure plate 131 to limit the movement of the main pressure plate 131 in the first direction (i.e., the direction of the X-axis in fig. 3); when the outer side surface of the second side wall 13123 receives an external force along the first direction, the connecting arm 13122 is elastically deformed, and the first clamping portion 1312 and the first auxiliary pressing plate 1321 are engaged and disengaged.

With reference to fig. 2, fig. 3 and fig. 4, the first auxiliary pressing plate 1321 is provided with a protrusion 13211 extending from a side close to the first fastening portion 1312, a notch 131231 is provided at a side of the second side wall 13123 abutting against the first auxiliary pressing plate 1321, the protrusion 13211 is inserted into the notch 131231 in the first direction, and end surfaces of two sides of the protrusion 13211 are matched with the notch 131231 to limit the movement of the main pressing plate 131 in the second direction; the outer side surface of the second side wall 13123 supports the edges of the two sides of the boss 13211, so that the main pressing plate 131 is limited to move in the first direction; the side edge of the second side wall 13123 abuts against the bottom of the boss 13211, and movement of the main platen 131 in the third direction is restricted. The first direction, the second direction and the third direction are the direction of the X axis, the direction of the Y axis and the direction perpendicular to the plane of the X axis and the Y axis.

Alternatively, with continued reference to fig. 4 and 3, the main body 1311 is 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 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, with continued reference to fig. 4 and 5, 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 is used for protecting the BTB connector 120 from the side. Alternatively, the extending direction of the shielding portion 1314 may be a direction perpendicular to the plane of the main body portion 1311, i.e., the third direction in the above.

Optionally, a concave 131232 is provided on the outer side of the second sidewall 13123, and for the inner side, which is a convex, the concave 131232 serves as a force application position for the outer side of the second sidewall 13123; that is, when the first clamping portion 1312 needs to be engaged with and disengaged from the first auxiliary pressure plate 1321, the connection arm 13122 is elastically deformed by pushing the recessed portion 131232 with a device such as a thimble, so that the first clamping portion 1312 is engaged with and disengaged from the first auxiliary pressure plate 1321.

The circuit board assembly that this application embodiment provided, through the ingenious block-type BTB clamp plate structure of project organization, can realize the fixed of BTB clamp plate very conveniently and dismantle, saved set screw, reduced because of the screw is lost the risk that causes the complete machine short circuit.

Example 2

Referring to fig. 8, fig. 8 is an enlarged schematic view of a partial structure of another embodiment of the circuit board assembly of the present application, a protrusion 13211 is extended from a side of the first auxiliary pressure plate 1321 close to the first clamping portion 1312, a notch 131231 is formed at a side of the second side wall 13123, which supports the first auxiliary pressure plate 1321, and the protrusion 13211 is inserted into the notch 131231 in the first direction, unlike the previous embodiment, a notch 13212 is formed on the protrusion 13211 of the first auxiliary pressure plate 1321 in the present embodiment, a gap 101 is formed between the notch 13212 and an outer side surface of the second side wall 13123 of the first clamping portion 1312, and the gap 101 is used for accommodating an insert (not shown in the drawings, the insert is not a structure included in the present application, but a device assisting in external detachment). The insert may be a sharp device such as a screwdriver or a needle, when the insert is inserted into the gap 101, one side of the insert abuts against the inner wall of the gap 13212, the other side of the insert abuts against the second sidewall 13123 of the first clamping portion 1312, and the second sidewall 13123 of the first clamping portion 1312 may be elastically deformed by an external force of the insert, so that the first clamping portion 1312 and the first auxiliary pressing plate 1321 may be engaged and disengaged. The gap 13212 may be disposed in the middle of the protruding portion 13211, so as to ensure that an external force acts on the middle of the second sidewall 13123, and for structural features of other parts and a specific positioning and matching principle, please refer to the related description of the above embodiments, which is not described herein again.

Compared with the previous embodiment, the circuit board assembly in the embodiment has the advantages that the opening is formed in the protruding portion of the first auxiliary pressing plate, the opening can be formed in the position, close to the middle of the second side wall, of the corresponding portion, the stress condition of the clamping portion can be improved, the second side wall is guaranteed to be evenly stressed, the connecting arm can have a better deformation state, and the clamping separation operation of the clamping portion and the auxiliary pressing plate is simpler and more labor-saving. In addition, in other embodiments, a concave portion may be disposed on the outer side surface of the second sidewall, and the concave portion serves as a second force application position for applying force to the outer side surface of the second sidewall.

Example 3

Referring to fig. 3, 4 and 9, fig. 9 is a schematic structural view of the main pressure plate in another view of the embodiment of fig. 4, a side of the main body 1311 of the main pressure plate 131 is provided with a shielding portion 1314 extending toward one side of the BTB connector 120, and the shielding portion 1314 is used for protecting the BTB connector 120 from the side. Alternatively, the extending direction of the shielding portion 1314 may be a direction perpendicular to the plane of the main body portion 1311, i.e., the third direction in the above.

Optionally, in this embodiment, the main body portion 1311 is rectangular, an avoidance gap 102 is disposed between the shielding portions 1314 connected to adjacent sides, the avoidance gap 102 is disposed at a corner position, and the avoidance gap 102 functions as: the main pressure plate is integrally formed by stretching, an avoidance groove is reserved before stretching, and the avoidance gap 102 is formed after forming; avoiding the gap 102 can prevent stress concentration at four corners and material accumulation during stretching, so that the stretching process of the stretching piece is smoother, and the whole stretching piece has better appearance consistency. In this embodiment, the main pressure plate 131 may be made of stainless steel, which has excellent elasticity and rigidity.

Further, an electronic device is provided in an embodiment of the present application, please refer to fig. 10, where fig. 10 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 clamping type BTB pressing plate structure with an ingenious design structure, so that fixing screws are omitted, and the risk of short circuit of the whole machine caused by the falling of the screws is 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, a first auxiliary pressing plate and a second auxiliary pressing plate, the first auxiliary pressing plate and the second auxiliary pressing plate are fixedly connected with the circuit board respectively, two opposite sides of the main pressing plate are clamped with the first auxiliary pressing plate and the second auxiliary pressing plate respectively, and the main pressing plate is covered on the BTB connector and used for pressing the BTB connector on the circuit board; the main pressing plate comprises a main body part, a first clamping part and a second clamping part, the first clamping part and the second clamping part integrally extend to two opposite sides of the main body part, and the first clamping part and the second clamping part are respectively in clamping fit with the first auxiliary pressing plate and the second auxiliary pressing plate; the first clamping portion is of a U-shaped structure, the U-shaped structure comprises a first side wall, a connecting arm and a second side wall, one side of the first side wall is connected with the edge of the main body portion, the other side of the first side wall is connected with the connecting arm, the other side of the connecting arm is connected with the second side wall, the other side of the second side wall supports the first auxiliary pressing plate to limit the movement of the main pressing plate in a third direction, and further, the outer side surface of the second side wall supports the first auxiliary pressing plate to limit the movement of the main pressing plate in the first direction; when the outer side surface of the second side wall is subjected to an external force along the first direction, the connecting arm can be elastically deformed, and the first clamping part and the first auxiliary pressing plate can be clamped and separated; the first auxiliary pressing plate is provided with a protruding part in an extending mode at one side close to the first clamping part, a notch is formed in one side, supporting the first auxiliary pressing plate, of the second side wall, the protruding part is inserted into the notch in the first direction, and the protruding part and the notch are matched to limit the main pressing plate to move in the second direction; the clamping device comprises a first clamping portion, a second clamping portion and a protruding portion, wherein the protruding portion is provided with an opening, a gap is formed between the opening and the outer side face of the second side wall of the first clamping portion, the gap is used for accommodating an insertion body, when the insertion body is inserted into the gap, one side of the insertion body supports the inner wall of the opening, the other side of the insertion body supports the second side wall of the first clamping portion, the second side wall can elastically deform under the action of external force of the insertion body, and therefore the first clamping portion is clamped and separated from the first auxiliary pressing plate, and the first direction, the second direction and the third direction are perpendicular to each other.

2. The circuit board assembly of claim 1, wherein the second clamping portion extends in a first direction away from the main body portion, a clamping groove is formed on a side of the second auxiliary pressing plate facing the main pressing plate, and an end of the second clamping portion away from the main body portion is used for being inserted into the clamping groove to be positioned in cooperation with the clamping groove.

3. The circuit board assembly according to claim 2, wherein the second auxiliary pressing plate includes a fixing portion, a first blocking portion, a second blocking portion, a third blocking portion and a fourth blocking portion, the fixing portion, the first blocking portion, the second blocking portion, the third blocking portion and the fourth blocking portion are integrally formed, the left side and the right side of the second blocking portion are respectively connected with the first blocking portion and the third blocking portion, the fourth blocking portion is respectively connected with the top portions of the first blocking portion, the second blocking portion and the third blocking portion, and the bottom portions of the first blocking portion, the second blocking portion and the third blocking portion are respectively connected with the fixing portion; first fender portion fourth fender portion the third fender portion with the circuit board encloses jointly to establish and forms the screens groove, second fender portion is used for injecing second joint portion is in the removal of first direction, first fender portion with third fender portion is used for injecing the removal of second joint portion in the second direction, fourth fender portion with the circuit board is used for injecing the removal of second joint portion in the third direction, the fixed part be used for with circuit board fixed connection.

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 one of claims 1 to 3, wherein the side edge of the main body portion is provided with a shielding portion extending toward a side of the BTB connector, the shielding portion being for protecting the BTB connector from the side.

6. An electronic device, characterized in that the electronic device comprises a circuit board assembly according to any of claims 1-5.