CN108232498B

CN108232498B - Circuit board assembly and electronic device

Info

Publication number: CN108232498B
Application number: CN201810173127.1A
Authority: CN
Inventors: 陈雷
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2018-03-01
Filing date: 2018-03-01
Publication date: 2020-10-02
Anticipated expiration: 2038-03-01
Also published as: CN108232498A

Abstract

The application discloses circuit board assembly and electron device, this circuit board assembly includes: a circuit board, a BTB connector, and a pressure plate; the BTB connector sets up on the circuit board, and the clamp plate includes clamp plate main part and sets up the connecting portion at clamp plate main part both ends, and wherein, the clamp plate main part supports the top on the BTB connector, and connecting portion can be dismantled with the circuit board and be connected to the clamp plate main part compresses tightly the BTB connector on the circuit board through the connecting portion. Therefore, the connecting parts distributed at the two ends of the pressing plate main body are detachably connected with the circuit board, so that the pressing plate main body compresses the BTB connector between the pressing plate main body and the circuit board on the circuit board, the BTB connector is uniformly stressed, and the sub-circuit board is more stably connected with the main board.

Description

Circuit board assembly and electronic device

Technical Field

The present disclosure relates to electronic device board-to-board connector fixing structures, and particularly to a circuit board assembly and an electronic device.

Background

Terminal electronic devices such as mobile phones and tablet computers generally require two or more circuit boards to be connected 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 usually has a problem of instability, so that the sub circuit board is easily disconnected from the main board.

Disclosure of Invention

In one aspect, embodiments of the present application provide a circuit board assembly, including:

a circuit board;

a BTB connector disposed on the circuit board;

the pressing plate comprises a pressing plate main body and connecting parts arranged at two ends of the pressing plate main body, wherein the pressing plate main body abuts against the BTB connector, the connecting parts are detachably connected with the circuit board, and therefore the pressing plate main body presses the BTB connector onto the circuit board through the connecting parts.

In another aspect, the present application further provides an electronic device, which includes the circuit board assembly described above.

The clamp plate of this application embodiment includes the clamp plate main part and is located the connecting portion at clamp plate main part both ends, is connected through the dismantling of distributing in the connecting portion at clamp plate main part both ends and circuit board for the clamp plate main part will be located the BTB connector between clamp plate main part and the circuit board and compress tightly on the circuit board, thereby makes the BTB connector atress even, makes the connection of sub-circuit board and mainboard more firm.

Drawings

Fig. 1 is a schematic structural diagram of a circuit board assembly according to a first embodiment of the present application;

fig. 2 is an enlarged schematic structural view of a connection portion of the circuit board assembly shown in fig. 1;

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

fig. 4 is an enlarged structural view of a connection portion of the circuit board assembly shown in fig. 3;

fig. 5 is a schematic structural diagram of a circuit board assembly according to a third embodiment of the present application;

fig. 6 is an enlarged structural view of a connection portion of the circuit board assembly shown in fig. 5;

fig. 7 is a schematic structural diagram of a circuit board assembly according to a fourth embodiment of the present application;

fig. 8 is an enlarged structural view of a connection portion of the circuit board assembly shown in fig. 7;

fig. 9 is a schematic side view of a circuit board assembly according to a fifth embodiment of the present application;

FIG. 10 is an enlarged partial schematic view of the circuit board assembly shown in FIG. 9 at circle A;

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

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the specific embodiments described herein are merely illustrative of the application and not restrictive of the application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

The terms "first", "second", etc. in this application are used to distinguish between different objects and not to describe a particular order. 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 application. 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.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a circuit board assembly according to a first embodiment of the present disclosure. In the present embodiment, the circuit board assembly 10 includes a circuit board 11, a BTB connector 12, and a pressing plate 13.

The circuit board 11 is a support for the electronic components and a carrier for electrical connection of the electronic components.

The BTB connector 12 is provided on the circuit board 11. The BTB connector 12 is used to connect two circuit boards 11, so that the two circuit boards 11 are mechanically and electrically connected. The BTB connector 12 features a mating male and female connector. That is, the male connector and the female connector are respectively arranged on two circuit boards to be connected, so that the male connector and the female connector are matched to realize the mechanical and electrical connection of the two circuit boards.

The pressing plate 13 is used to fix the BTB connector 12. The material of the pressing plate 13 may be a metal material such as iron, aluminum, or the like, or an alloy material, or may be a plastic material. The platen 13 includes a platen main body 131 and a connecting portion 132. The connection portions 132 on opposite sides of the pressing plate main body 131 may be integrally formed with the pressing plate main body 131, or the pressing plate main body 131 and the connection portions 132 may be adhered together by an adhesive after the pressing plate main body 131 and the connection portions 132 are made of the same or different materials. Wherein, the pressing plate main body 131 supports against the BTB connector 12, and the connecting portion 132 is disposed at two different ends of the pressing plate main body 131 and detachably connected to the circuit board 11, so as to drive the pressing plate main body 131 to compress the BTB connector 12 onto the circuit board 11.

This embodiment sets up connecting portion 132 through the different both ends at clamp plate main part 131, can dismantle with circuit board 11 through connecting portion 132 and be connected for clamp plate main part 131 will be located the BTB connector 12 between clamp plate main part 131 and circuit board 11 and compress tightly on circuit board 11, thereby makes BTB connector 12 atress even, thereby reaches the purpose that the connection of sub circuit board and mainboard is more firm.

In the present embodiment, the connection portion 132 is divided into a first connection portion 132 and a second connection portion 133 provided at two different ends of the platen main body 131. In the present embodiment, the connection manner between the first connection portion 132 and the circuit board 11 is the same as the connection manner between the second connection portion 133 and the circuit board 11, and therefore, only the specific configuration of one of the connection portions 133 will be described in detail in the present embodiment. Of course, in other embodiments, the connection manner of the first connection portion 132 and the circuit board 11 may be different from the connection manner of the second connection portion 133 and the circuit board 11.

Referring to fig. 2, fig. 2 is an enlarged schematic structural diagram of a connection portion of the circuit board assembly shown in fig. 1. As shown in fig. 1 and 2, the circuit board 11 is provided with an engagement hole 111, and the connection portion 133 is provided with an engagement portion 134 that engages with the engagement hole 111 and a first extension portion 135 that connects the pressing plate main body 131 and the engagement portion 134.

The first extension 135 extends from one end of the pressing plate main body 131 toward the circuit board 11, and extends downward as shown in fig. 1. Further, the thickness of the first extension part 135 is the same as the thickness of the pressure plate main body 131, the width of the first extension part 135 may be smaller than, larger than or equal to the width of the pressure plate main body 131, and preferably, the width of the first extension part 135 is equal to the width of the pressure plate main body 131, at this time, the pressure plate main body 131 is more uniformly acted by the first extension part 135.

The engaging hole 111 is provided in the circuit board 11 to engage with the connecting portion 133, thereby fixing the platen main body 131 to the circuit board 11. Therefore, the position of the engaging hole 111 corresponds to the connecting portion 133, and the size of the engaging hole 111 is slightly larger than the size of the first extending portion 135, so that the engaging portion 134 can enter the engaging hole 111, and the engaging portion 134 will not be removed from the engaging hole 111 when it is restored to its original shape by the elastic force.

The engaging portion 134 extends from one end of the first extending portion 135 away from the pressing plate main body 131 in a direction parallel to the circuit board 11. Specifically, the engaging portion 134 is connected to one end of the first extending portion 135, which is far away from the pressing plate main body 131, and extends in a direction parallel to the circuit board 11, and it can be understood that the engaging portion 134 may be bent toward the middle of the pressing plate main body 131, and may also be bent toward the middle of the pressing plate main body 131. When the connecting portion 133 is engaged with the engaging hole 111, the engaging portion 134 is elastically deformed toward the pressing plate main body 131 under the action of the engaging hole 111, so that an included angle between the engaging portion 134 and the first extending portion 135 is reduced, and thus, the engaging portion 134 can pass through the engaging hole 111 on the circuit board 11; when the engaging portion 134 completely passes through the engaging hole 111, the acting force of the engaging hole 111 disappears, and the engaging portion 134 returns to its original shape under the action of the elastic force, at this time, the engaging portion 134 is parallel to the circuit board 11, and since the size of the engaging portion 134 is larger than that of the engaging hole 111, the engaging portion 134 is engaged with the outer side of the engaging hole 111, so that the engaging portion 134 and the pressing plate main body 131 are respectively located at two sides of the circuit board 11, and the pressing plate main body 131 is fixed on the circuit board 11.

As mentioned above, the connection portion 133 of the present embodiment extends from the two ends of the pressing plate main body 131 to the circuit board 11, and then bends toward the middle of the pressing plate main body 131 (i.e., inward bending), or bends toward the direction away from the middle of the pressing plate main body 131 (i.e., outward bending), so that the pressing plate main body 131 can be fixed on the circuit board 11 through the connection portion 133, and further the BTB connector 12 is pressed, so that the stress is uniform, and the connection is more stable.

Further, the pressure plate main body 131 is provided with a recessed portion 136 recessed toward the BTB connector 12. The lower surface of the recess 136 is closer to the circuit board 11 than the lower surface of the platen main body 131. The recess 136 of the present embodiment occupies only a part of the area of the platen main body 131, and is located at an intermediate position of the platen main body 131. The pressure plate main body 131 presses the BTB connector 12 through the recess 136. The bottom surface of the recess 136 may be spaced from the circuit board 11 by a distance equal to the height of the BTB connector 12 above the circuit board 11, whereby the BTB connector 12 can be pressed against the circuit board 11.

Referring to fig. 3 and 4, fig. 3 is a schematic structural diagram of a circuit board assembly according to a second embodiment of the present application, and fig. 4 is an enlarged structural diagram of a connection portion of the circuit board assembly shown in fig. 3. As shown in fig. 3, the circuit board assembly 20 of the present embodiment still includes a circuit board 21, a BTB connector 22, and a pressing plate 23. The structures of the circuit board 21 and the BTB connector 22 are the same as the structures of the circuit board 11 and the BTB connector 12, respectively, and are not described herein again.

In the present embodiment, the pressing plate 23 is used to fix the BTB connector 22. The platen 23 includes a platen main body 231 and a connecting portion 232. Wherein, the clamp plate main body 231 supports and pushes up on the BTB connector 22, and the connecting portion 232 is disposed at two different ends of the clamp plate main body 231, and is detachably connected to the circuit board 21, so as to drive the clamp plate main body 231 to compress the BTB connector 22 on the circuit board 21.

The structure of the platen main body 231 of the present embodiment is the same as that of the platen main body 131 described above, and is not described herein again.

The circuit board assembly 20 of the present embodiment is different from the circuit board assembly 10 described above in that the structure of the connection portion 232 of the present embodiment is different from the connection portion 133 described above. Specifically, as shown in fig. 4, the connecting portion 232 includes a first extending portion 235, an engaging portion 234 and a second extending portion 237, and the engaging portion 234 engages with the engaging hole 211 to detachably connect the pressing plate 23 and the circuit board 21. Since the two connecting

portions

232 and 233 have the same structure, the present embodiment will describe only the specific structure of one connecting portion 233 in detail. Of course, in other embodiments, the two connecting

portions

232, 233 may have different structures.

The first extension portion 235 extends from one end of the pressing plate main body 231 toward the circuit board 21, and extends downward as shown in fig. 4. Further, the thickness of the first extending portion 235 is the same as the thickness of the pressure plate main body 231, the width of the first extending portion 235 may be smaller than, larger than or equal to the width of the pressure plate main body 231, and preferably, the width of the first extending portion 235 is equal to the width of the pressure plate main body 231, at this time, the pressure plate main body 231 is more uniformly acted by the first extending portion 235.

The engaging portion 234 extends from one end of the first extending portion 235 away from the pressing plate main body 231 in a direction parallel to the circuit board 21. Specifically, the engaging portion 234 is connected to an end of the first extending portion 235 far away from the pressing plate main body 231 and extends in a direction parallel to the circuit board 21, and it can be understood that the engaging portion 234 may be bent toward a middle portion of the pressing plate main body 231 (i.e., inwardly bent), or bent away from the middle portion of the pressing plate main body 231 (i.e., outwardly bent).

The second extension portion 237 extends from an end of the engaging portion 234 away from the first extension portion 235 toward the circuit board 21. That is, the second extending portion 237 is connected to an end of the engaging portion 234 away from the first extending portion 235 and extends toward the circuit board 21, so as to guide the first extending portion 235 to be elastically deformed when the engaging portion 234 is inserted into the engaging hole 211, so that the engaging portion 234 can more easily enter the engaging hole 211.

Further, the second extension 237 is disposed at an acute angle with one end of the engaging portion 234. Specifically, when the engaging portion 234 is bent toward the middle of the pressing plate main body 231, the second extending portion 237 extends toward the circuit board 21 and also extends away from the middle of the pressing plate main body 231; when the engaging portion 234 is bent away from the middle of the pressing plate main body 231, the second extending portion 237 extends toward the circuit board 21 and also extends toward the middle of the pressing plate main body 231, so that the second extending portion 237 and the engaging portion 234 are disposed at an acute angle. The advantage of the acute angle between the engaging portion 234 and the second extension 237 is that: when the connecting portion 233 is inserted into the engaging hole 211, the angle between the second extending portion 237 and the engaging hole 211 can guide the engaging portion 234 to smoothly enter the engaging hole 211, and after the engaging portion 234 is restored to its original shape by the elastic force on the other side of the circuit board 21, the second extending portion 237 can enhance the strength of the engaging portion 234, so as to prevent the engaging portion 234 from being easily pulled out from the engaging hole 211, thereby making the connection more stable.

In summary, in the circuit board assembly 20 of the present embodiment, the second extending portion 237 disposed at one end of the engaging portion 234 away from the first extending portion 235 is added to the circuit board assembly 10, and the second extending portion 237 and the engaging portion 234 are disposed at an acute angle, so as to guide the engaging portion 234 during engaging and enhance the connection strength after engaging.

Referring to fig. 5 and 6, fig. 5 is a schematic structural diagram of a circuit board assembly according to a third embodiment of the present application, and fig. 6 is an enlarged structural diagram of a connection portion of the circuit board assembly shown in fig. 5. As shown in fig. 5 and 6, the circuit board assembly 30 of the present embodiment still includes a circuit board 31, a BTB connector 32, and a pressing plate 33. The structure of the BTB connector 32 is the same as the BTB connector 12 described above, and is not described herein again.

The number of the engaging holes 311 provided in the circuit board 31 is four, and the four engaging holes 311 are used for engaging with the connecting portions 333.

In the present embodiment, the pressing plate 33 is used to fix the BTB connector 32. The platen 33 includes a platen main body 331 and a connecting portion 332. The pressing plate body 331 abuts against the BTB connector 32, and the connecting portions 332 are disposed at two different ends of the pressing plate body 331 and detachably connected to the circuit board 31, so as to drive the pressing plate body 331 to compress the BTB connector 32 on the circuit board 31.

The structure of the pressing plate main body 331 of the present embodiment is the same as the pressing plate main body 131 described above, and is not described herein again.

The circuit board assembly 30 of the present embodiment is different from the circuit board assembly 10 described above in that the structure of the connecting portion 332 of the present embodiment is different from the connecting portion 132 described above. Specifically, the connecting portion 332 includes a first extending portion 335 and an engaging portion 334, the first extending portion 335 connects the engaging portion 334 with the pressing plate main body 331, and the engaging portion 334 engages with the engaging hole 311, thereby achieving detachable connection of the pressing plate 33 and the circuit board 31. Since the two connecting

portions

332 and 333 have the same structure, the present embodiment will describe only the specific structure of one of the connecting portions 333 in detail.

The first extending portion 335 includes a first sub-extending portion 3351 and a second sub-extending portion 3352, which are disposed at an interval, the first sub-extending portion 3351 and the second sub-extending portion 3352 are disposed at two sides of the connecting portion 333 at an interval, extend from one end of the pressing plate main body 331 to the direction of the circuit board 31, and extend downward as shown in fig. 6.

Correspondingly, the number of the engaging portions 334 is two, and the engaging portions include a first engaging portion 3341 connected to the first sub-extending portion 3351 and a second engaging portion 3342 connected to the second sub-extending portion 3352, and the first engaging portion 3341 and the second engaging portion 3342 are correspondingly spaced at two sides of the connecting portion 333. Since the two

engaging portions

3341,3342 and the two

sub-extending portions

3351,3352 have the same structure, the present embodiment will describe only the specific structure of one of the engaging portions 3341 and one of the sub-extending portions 3351.

The first engaging portion 3341 extends from one end of the first sub-extending portion 3351 away from the platen main body 331 in a direction parallel to the circuit board 31. Specifically, the first engaging portion 3341 is connected to an end of the first sub-extending portion 3351 away from the pressing plate main body 331, and extends in a direction parallel to the circuit board 31. It can be understood that the first engaging portion 3341 may be bent toward the middle of the pressing plate main body 331, or may be bent away from the middle of the pressing plate main body 331. When the connecting portion 333 is engaged with the engaging hole 311, the first engaging portion 3341 is elastically deformed toward the pressing plate main body 331 under the action of the engaging hole 311, so that an included angle between the first engaging portion 3341 and the first sub-extending portion 3351 is reduced, and thus the first engaging portion 3341 can pass through the engaging hole 311 of the circuit board 31; when the first engaging portion 3341 completely passes through the engaging hole 311, the acting force of the engaging hole 311 disappears, and the first engaging portion 3341 returns to its original shape under the action of the elastic force, at this time, the first engaging portion 3341 is parallel to the circuit board 31, and since the size of the first engaging portion 3341 is larger than that of the engaging hole 311, the first engaging portion 3341 is engaged with the outer side of the engaging hole 311, so that the first engaging portion 3341 and the pressing plate main body 331 are respectively located at two sides of the circuit board 31, and the pressing plate main body 331 is fixed on the circuit board 31.

In summary, the circuit board assembly 30 of the present embodiment saves the areas of the regions between the first sub-extending portion 3351 and the second sub-extending portion 3352 and between the first engaging portion 3341 and the second engaging portion 3342, compared to the circuit board assembly 10, thereby achieving the purposes of saving materials and reducing the production cost. And four block portions compare two block portions and the cooperation in block hole with the cooperation in block hole, and the effort is more even, and the connection effect is better.

Referring to fig. 7 and 8, fig. 7 is a schematic structural diagram of a circuit board assembly according to a fourth embodiment of the present disclosure, and fig. 8 is an enlarged structural diagram of a connection portion of the circuit board assembly shown in fig. 7. The circuit board assembly 40 of the present embodiment still includes a circuit board 41, a BTB connector 42, and a pressing plate 43. The structures of the circuit board 41 and the BTB connector 42 are the same as those of the circuit board 31 and the BTB connector 32, respectively, and are not described herein again.

The circuit board assembly 40 of the present embodiment is different from the circuit board assembly 30 described above in that the structure of the connecting portion 432 of the present embodiment is different from the connecting portion 332 described above. Specifically, the connecting portion 432 includes a first extending portion 435, an engaging portion 434 and a second extending portion 437, and the engaging portion 434 engages with the engaging hole 411 to detachably connect the pressing plate 43 to the circuit board 41. Since the two connecting

portions

432 and 433 have the same structure, the present embodiment only describes the specific structure of one of the connecting portions 433 in detail.

The first extending portion 435 includes a first sub-extending portion 4351 and a second sub-extending portion 4352, which are disposed at intervals, wherein the first sub-extending portion 4351 and the second sub-extending portion 4352 are disposed at two sides of the connecting portion 433 at intervals in parallel, and extend from one end of the pressing plate main body 431 to the direction of the circuit board 41, as shown in fig. 8, and extend downward.

Correspondingly, the number of the engaging portions 434 is two, and the engaging portions include a first engaging portion 4341 connected to the first sub-extending portion 4351 and a second engaging portion 4342 connected to the second sub-extending portion 4352, and the first engaging portion 4341 and the second engaging portion 4342 are correspondingly disposed at two sides of the connecting portion 433 at an interval. Since the two

engaging portions

4341,4342 have the same structure, the present embodiment will describe only the specific structure of one of the engaging portions 4341 in detail.

The first engaging portion 4341 extends from one end of the first sub-extending portion 4351 away from the pressing plate main body 431 in a direction parallel to the circuit board 41. Specifically, the first engaging portion 4341 is connected to an end of the first sub-extending portion 4351 away from the pressing plate main body 431, and extends in a direction parallel to the circuit board 41. It can be understood that the first engaging portion 4341 may be bent toward the middle of the pressing plate main body 431, or may be bent away from the middle of the pressing plate main body 431.

Correspondingly, the number of the second extending portions 437 is two, and the second extending portions 437 include third sub extending portions 4371 connected to the first engaging portion and fourth sub extending portions 4372 connected to the second engaging portion, and the third sub extending portions 4371 and the fourth sub extending portions 4372 are correspondingly disposed at two sides of the connecting portion 433 at intervals. Since the two

sub-extensions

4371,4372 have the same structure, the present embodiment only describes the specific structure of one sub-extension 4371.

The third sub-extension portion 4371 extends from one end of the first engaging portion 4341 away from the first sub-extension portion 4351 to the direction of the circuit board 41. That is to say, the third sub-extending portion 4371 is connected to one end of the first engaging portion 4341 away from the first sub-extending portion 4351, and extends toward the circuit board 41, so as to guide the first sub-extending portion 4351 to elastically deform when the first engaging portion 4341 is inserted into the engaging hole 411, so that the first engaging portion 4341 can more easily enter the engaging hole 411.

Further, the third sub-extending portion 4371 is disposed at an acute angle with one end of the first engaging portion 4341. Specifically, when the first engaging portion 4341 is bent toward the middle of the pressing plate main body 431, the third sub-extending portion 4371 extends toward the circuit board 41 and also extends away from the middle of the pressing plate main body 431; when the first engaging portion 4341 is bent away from the middle of the pressing plate main body 431, the third sub-extending portion 4371 extends toward the circuit board 41 and also extends toward the middle of the pressing plate main body 431, so that the third sub-extending portion 4371 and the first engaging portion 4341 form an acute angle. The first engagement portion 4341 and the third sub-extension portion 4371 are disposed at an acute angle, which is advantageous in that: when the first engaging portion 4341 is inserted into the engaging hole 411, an included angle between the third sub-extending portion 4371 and the engaging hole 411 can guide the first engaging portion 4341 to smoothly enter the engaging hole 411, and when the first engaging portion 4341 is elastically restored on the other side of the circuit board 41, the third sub-extending portion 4371 can enhance the strength of the first engaging portion 4341, so as to prevent the first engaging portion 4341 from being easily pulled out of the engaging hole 411, thereby making the connection more stable.

In summary, in the circuit board assembly 40 of the present embodiment, compared to the circuit board assembly 30 described above, the third sub-extension portion 4371 disposed at an end of the first engaging portion 4341 away from the first sub-extension portion 4351 is added, and the third sub-extension portion 4371 and the first engaging portion 4341 form an acute angle, which serves to guide the first engaging portion 4341 during engaging and enhance the connection strength after engaging.

Referring to fig. 9 and 10, fig. 9 is a schematic side view of a circuit board assembly according to a fifth embodiment of the present application, and fig. 10 is a schematic partial enlarged structure diagram of the circuit board assembly shown in fig. 9 at circle a. In the present embodiment, the circuit board assembly includes a circuit board 51, a BTB connector 52, and a pressing plate 53. The structure of the BTB connector 52 is the same as the BTB connector 12 described above, and is not described herein again.

In the present embodiment, the platen 53 includes a platen main body 531 and a connecting portion 532. The pressing plate body 531 abuts against the BTB connector 52, and the connecting portions 532 are disposed at two different ends of the pressing plate body 531, detachably connected to the circuit board 51, and used for driving the pressing plate body 531 to press the BTB connector 52 onto the circuit board 51.

The structure of the pressing plate main body 531 of the present embodiment is the same as the pressing plate main body 131 described above, and is not described herein again.

The circuit board assembly 50 of the present embodiment is different from the circuit board assembly 10 described above in that the structure of the connecting portion 532 of the present embodiment is different from the connecting portion 132 described above, and the structure of the circuit board 51 of the present embodiment is different from the circuit board 11 described above. Specifically, the connection portion 532 includes a first extension portion 535 and a second catch 534, and the first extension portion 535 connects the second catch 534 with the pressure plate main body 531. The circuit board 51 is provided with a first buckle 511, and the second buckle 534 is buckled with the first buckle 511 on the circuit board 51, so that the press plate 53 is detachably connected with the circuit board 51. Since the two connecting portions 532,533 have the same structure, the present embodiment will describe only the specific structure of one of the connecting portions 533.

The first extension 535 extends from one end of the pressing plate main body 531 to the direction of the circuit board 51, and extends downward as shown in fig. 10. Further, the thickness of the first extension portion 535 is the same as that of the pressure plate main body 531, the width of the first extension portion 535 may be smaller than, larger than or equal to that of the pressure plate main body 531, and preferably, the width of the first extension portion 535 is equal to that of the pressure plate main body 531, and at this time, the pressure plate main body 531 is more uniformly acted by the first extension portion 535.

The second catch 534 is connected with the pressure plate main body 531 through the first extension 535. Specifically, the second latch 534 is bent in a direction parallel to the circuit board 51 and away from the middle of the pressure plate main body 531, and then bent in a direction away from the circuit board 51.

The first buckle 511 is formed with a receiving groove 512, and the shape of the receiving groove 512 matches with the shape of the second buckle 534. Specifically, when the connecting portion 533 is connected to the first buckle 511, the second buckle 534 deforms under the action of the first buckle 511, so that the second buckle 534 moves downward until the second buckle 534 does not contact the first buckle 511, the acting force applied to the second buckle 534 disappears, and under the action of the elastic force, the second buckle 534 returns to the original state, and the second buckle 534 enters the accommodating groove 512, so that the pressing plate 53 is fixed on the circuit board 51.

In summary, in the circuit board assembly 50 of the present embodiment, the first latch 511 and the second latch 534 that are engaged with each other are provided on the circuit board 51 and the pressure plate 53 at the same time as the circuit board assembly 10 described above, so that the pressure plate 53 is fixed to the circuit board 51 by the engagement of the latches, and the structure is simpler.

Referring to fig. 11, fig. 11 is a schematic overall structure diagram of an electronic device according to an embodiment of the present disclosure. The electronic device may be a mobile phone, a tablet computer, a notebook computer, a wearable device, etc., and the mobile phone is taken as an example in the present embodiment. The electronic device 1500 may include a screen 1501, 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.

The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims

1. A circuit board assembly, comprising:

the circuit board is provided with a clamping hole;

a BTB connector disposed on the circuit board;

the pressing plate comprises a pressing plate main body and connecting parts arranged at two ends of the pressing plate main body, wherein a concave part which is concave towards the BTB connector is arranged on the pressing plate main body, the bottom surface of the concave part is abutted against the BTB connector, so that the pressing plate main body presses the BTB connector through the concave part, the connecting parts comprise a clamping part which is matched with the clamping hole, a first extending part which is connected with the clamping part and the pressing plate main body, and a second extending part which is connected with one end of the clamping part, which is far away from the first extending part, and extends towards the direction of the circuit board, the clamping part is parallel to the circuit board, the second extending part and one end of the clamping part are arranged in an acute angle manner, and the second extending part and one end of the clamping part are used for guiding the first extending part to generate elastic deformation when the clamping part is inserted into the clamping hole and used for the clamping part to be subjected to elastic force, the strength of the engaging portion is enhanced.

2. The circuit board assembly of claim 1, wherein the two connection portions are connected to the circuit board in the same manner.

3. The circuit board assembly of claim 1, wherein the engaging portion is two and is disposed at both sides of the connecting portion with an interval therebetween.

4. An electronic device, characterized in that the electronic device comprises a circuit board assembly according to any one of claims 1-3.