CN210668861U

CN210668861U - Board-to-board connector assembly and terminal equipment

Info

Publication number: CN210668861U
Application number: CN201921792658.5U
Authority: CN
Inventors: 周凯
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2020-06-02
Anticipated expiration: 2029-10-22

Abstract

The utility model provides a board is to board connector assembly and terminal equipment, board include circuit board, board to board connector assembly, shielding component and pre-compaction component to board connector assembly. The board-to-board connector assembly is mounted on the circuit board and electrically connected with the circuit board. A shield member is mounted to the circuit board, the shield member at least partially surrounding the board-to-board connector assembly. The pre-pressing element is detachably mounted on the circuit board or the shielding element, the board-to-board connector assembly is arranged in a space surrounded by the circuit board, the shielding element and the pre-pressing element, and the pre-pressing element abuts against the board-to-board connector assembly. The utility model discloses in, carry out the pre-compaction to the board connector combination through pre-compaction component, prevent that the connector from droing and influencing the electric connection of circuit board and functional device.

Description

Board-to-board connector assembly and terminal equipment

Technical Field

The utility model relates to an electron field especially relates to a board is to board connector assembly and terminal equipment.

Background

The Board-To-Board (BTB) connector is widely used in electronic devices such as mobile phones, and is mainly used for signal transmission or current transmission of devices such as camera modules, display screens and batteries, and has the advantages of easiness in disassembly, stability in connection and the like. In the structural design of the mobile phone, in order to make the electrical connection more reliable, it is necessary to structurally apply pre-pressure to the board-to-board connector assembly, for example, the board-to-board connector assembly is disposed on the same side of the circuit board, and the pre-pressure is applied to the board-to-board connector assembly through the rear case and the support of the mobile phone, which has the following disadvantages: the board-to-board connector assembly can only be arranged on the same side of the circuit board; meanwhile, due to the influence of factors such as dimensional tolerance and assembly error of the rear shell and the bracket, pre-pressure cannot be effectively applied to the board-to-board connector assembly, and the electrical connection between the device and the circuit board is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a board to board connector component and terminal equipment, its stability that improves electric connection.

The utility model provides a board-to-board connector assembly, which comprises a circuit board, a board-to-board connector assembly, a shielding element and a pre-pressing element, wherein the board-to-board connector assembly is arranged on the circuit board and is electrically connected with the circuit board; a shield member mounted to the circuit board, the shield member at least partially surrounding the board-to-board connector assembly; the pre-pressing element is detachably mounted on the circuit board or the shielding element, the board-to-board connector assembly is arranged in a space surrounded by the circuit board, the shielding element and the pre-pressing element, and the pre-pressing element abuts against the board-to-board connector assembly.

Further, the pre-pressing element is made of metal, and the pre-pressing element shields the board-to-board connector assembly from signals.

Further, pre-compaction component detachably install in shielding element, shielding element includes first cooperation portion, pre-compaction component includes second cooperation portion, first cooperation portion and second cooperation portion snap-fit.

Further, the shielding element comprises a first side wall, the pre-pressing element comprises a second side wall surrounding the first side wall, one of the first side wall and the second side wall is provided with a through hole or a recess, and the other one of the first side wall and the second side wall is provided with a convex part matched with the through hole or the recess.

Further, the shielding element includes a first top wall connected to the first side wall, the pre-pressing element includes a second top wall connected to the second side wall, the first top wall and the first side wall surround the board-to-board connector assembly, and the second top wall abuts against the board-to-board connector assembly.

Further, the shielding element comprises a connecting piece, and the connecting piece is used for connecting the shielding element and the prepressing element.

Furthermore, the circuit board has an upper surface, the shielding element is soldered to the upper surface of the circuit board, and the board-to-board connector assembly is disposed on the upper surface of the circuit board.

Further, the connector assembly comprises at least two plate-to-plate connector assemblies, and the pre-pressing element abuts against the at least two plate-to-plate connector assemblies.

The utility model also provides a terminal equipment, it includes as before the board to board connector assembly.

Furthermore, the device comprises a functional device and a flexible circuit board, wherein the functional device is electrically connected with the circuit board through the flexible circuit board and the board-to-board connector assembly.

The utility model discloses in, carry out the pre-compaction to the board connector combination through pre-compaction component, prevent that the connector from droing and influencing the electric connection of circuit board and functional device.

Drawings

Fig. 1 is a schematic structural view of an embodiment of a board-to-board connector assembly according to the present invention;

FIG. 2 is an exploded view of the board-to-board connector assembly shown in FIG. 1;

fig. 3 is a schematic structural view of the board-to-board connector assembly shown in fig. 1, wherein the shielding element and the pre-pressing element are not shown;

FIG. 4 is a cross-sectional schematic view of the board-to-board connector assembly shown in FIG. 1;

fig. 5 is a schematic cross-sectional view of the board-to-board connector assembly shown in fig. 1, wherein the board-to-board connector assembly is not shown.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus consistent with certain aspects of the invention, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "a number" means two or more. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in the specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

Please refer to fig. 1, fig. 2 and fig. 3, the present invention provides a board-to-board connector assembly, which includes a circuit board 1, a board-to-board connector assembly 2, a shielding element 3 and a pre-pressing element 4. The board-to-board connector assembly 2 comprises a male end connector 21 and a female end connector 22, wherein the male end connector 21 is inserted into the female end connector 22 from top to bottom, so that the male end connector 21 is mounted on the female end connector 22 to form an electrical connection. The female end connector 22 is mounted on the circuit board 1, and the male end connector 21 is electrically connected to the circuit board 1 through the female end connector 22. The shielding element 3 surrounds the side of the board-to-board connector assembly 2 and is used for shielding signal interference at the side of the board-to-board connector assembly 2. The board-to-board connector assembly 2 is disposed in a space 100 (please refer to fig. 5) enclosed by the pre-pressing element 4, the shielding element 3 and the circuit board 1.

The prepressing element 4 is detachably arranged on the shielding element 3, and when the male end connector 21 needs to be removed, the prepressing element 4 is detached; when male end connector 21 is installed in female end connector 22, install precompression component 4 to shielding element 3, precompression component 4 butt board-to-board connector assembly 2's male end connector 21, be used for right board-to-board connector assembly 2 applys precompression, makes male end connector 21 and female end connector 22 zonulae occludens, avoids male end connector 21 and female end connector 22 to break away from and influences electric connection's stability. Of course, the pre-pressing element 4 can also be detachably mounted on the circuit board 1, for example, a plurality of through holes are formed on the circuit board 1, and the pre-pressing element is provided with positioning posts and inserted into the through holes

In the present embodiment, the number of the board-to-board connector assemblies 2 is two, and the preload element 4 abuts against the two board-to-board connector assemblies 2 at the same time, that is, applies preload to the two board-to-board connector assemblies 2 at the same time. The two board-to-board connector assemblies 2 are electrically connected with the two flexible circuit boards 5 respectively, and the two flexible circuit boards 5 are electrically connected with the two functional devices 6 respectively, so that the two functional devices 6 are electrically connected with the circuit board 1. Optionally, the functional device 6 may be a camera module, a battery, a display screen, or the like, and in this embodiment, the two functional devices 6 are both camera modules. In other embodiments, the number of board-to-board connector combinations may also be three or more, and the pre-pressing element 4 may abut three or more board-to-board connector combinations at the same time.

The circuit board 1 is, for example, a printed circuit board, and includes an upper Surface 10, a connecting trace (not shown) formed on the upper Surface 10, the board-to-board connector assembly 2 disposed on the upper Surface, and a female connector 22 soldered to the upper Surface 10 by a Surface Mounted Technology (SMT) process, so as to electrically connect the board-to-board connector assembly 2 and the connecting trace.

Optionally, the shielding element 3 is soldered to the upper surface of the circuit board 1 by surface soldering, and the pre-pressing element 3 is mounted to the shielding element 3 by snap-fitting. For example, the shielding element 3 comprises a first mating portion, and the pre-compression element 4 comprises a second mating portion, and the first mating portion is snap-fitted with the second mating portion, so that the pre-compression element 4 is detachably mounted to the shielding element 3.

Referring to fig. 2 and 4, the shielding element 3 includes a first sidewall 31 and a first top wall 32 connected to the first sidewall 31, and the pre-pressing element 4 includes a second sidewall 41 and a second top wall 42 connected to the second sidewall. The first top wall 32 and the first side wall 31 surround the board-to-board connector assembly 2, the second side wall 41 surrounds the first side wall 31, the second top wall 42 covers the first top wall 32 and the board-to-board connector assembly 2, and the upper end of the board-to-board connector assembly 2 is not lower than the upper end of the first top wall 32, so that the second top wall 42 abuts against the board-to-board connector assembly 2. Of course, the lower end of the portion of the second top wall 32 corresponding to the board-to-board connector assembly 2 may be lower, and the heights of the upper end of the board-to-board connector assembly 2 and the upper end of the first top wall 32 are not limited.

Referring to fig. 4 and 5, the first sidewall 31 has a through hole 311 (corresponding to the first matching portion), the second sidewall 41 has a protrusion 411 (corresponding to the second matching portion), and the protrusion 411 and the through hole 311 are matched to detachably mount the pre-pressing element 4 and the shielding element 3. In this embodiment, the number of the protruding portions 411 and the number of the through holes 311 are plural, and the protruding portions are arranged along the circumferential direction of the board-to-board connector assembly 2, so as to ensure that the applied pre-pressure is uniformly distributed, and further ensure the stability of the electrical connection. In one embodiment, the through holes 311 may also be replaced by recesses (recesses may be understood as half holes); in addition, the through hole or the recess may also be disposed on the second sidewall 41, and the protrusion is correspondingly disposed on the first sidewall 31; in another embodiment, the protrusion and the through hole can also be replaced by two hooks.

Alternatively, the pre-pressing element 4 is made of metal or metal alloy, and since the second top wall 42 covers the upper side of the plate-end connector assembly 2, it can shield the signal interference above.

In other embodiments, the board-to-board connector assembly further comprises a connecting member connecting the shielding element 3 and the pre-pressing element 4. The connecting piece is a screw, a bolt and other elements for connecting.

On the other hand, the utility model also provides a terminal equipment, for example for cell-phone, panel computer etc.. The terminal device includes the board-to-board connector assembly 2, the flexible circuit board 5, and the functional device 6 described in any of the foregoing embodiments, and certainly, the terminal device further includes a housing, a processor, a memory, and other devices, which are not described in detail in this embodiment one by one.

The prepressing element can apply prepressing force on the board-to-board connector combination, so that the stability of electrical connection is ensured; in addition, because devices such as a rear shell, a bracket and the like do not need to apply pre-pressure, the position of the board-to-board connector combination can be freely selected, the requirements on the rear shell and the bracket are also reduced, and the design of the terminal equipment is favorably optimized.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A board-to-board connector assembly, comprising:

a circuit board;

the board-to-board connector assembly is arranged on the circuit board and electrically connected with the circuit board;

a shield member mounted to the circuit board, the shield member at least partially surrounding the board-to-board connector assembly;

the prepressing element is detachably arranged on the circuit board or the shielding element and abuts against the board-to-board connector assembly.

2. The board-to-board connector assembly of claim 1, wherein: the pre-pressing element is made of metal or metal alloy, the board-to-board connector assembly is arranged in a space surrounded by the circuit board, the shielding element and the pre-pressing element, and the pre-pressing element shields the board-to-board connector assembly in a signal mode.

3. The board-to-board connector assembly of claim 1, wherein: the pre-pressing element is detachably mounted on the shielding element, the shielding element comprises a first matching portion, the pre-pressing element comprises a second matching portion, and the first matching portion is in snap fit with the second matching portion.

4. The board-to-board connector assembly of claim 3, wherein: the shielding element comprises a first side wall, the pre-pressing element comprises a second side wall surrounding the first side wall, one of the first side wall and the second side wall is provided with a through hole or a recess, and the other side wall is provided with a convex part matched with the through hole or the recess.

5. The board-to-board connector assembly of claim 4, wherein: the shielding element comprises a first top wall connected with the first side wall, the pre-pressing element comprises a second top wall connected with the second side wall, the first top wall and the first side wall surround the board-to-board connector assembly, and the second top wall is abutted to the board-to-board connector assembly.

6. The board-to-board connector assembly of claim 1, wherein: the shielding element and the pre-pressing element are connected through the connecting piece.

7. The board-to-board connector assembly of claim 1, wherein: the circuit board is provided with an upper surface, the shielding element is welded on the upper surface of the circuit board, and the board-to-board connector assembly is arranged on the upper surface of the circuit board.

8. The board-to-board connector assembly according to any one of claims 1 to 7, wherein: the pre-pressing element is abutted to the at least two plate-to-plate connector assemblies.

9. A terminal device, characterized in that it comprises a board-to-board connector assembly according to any one of claims 1 to 8.

10. The terminal device of claim 9, wherein: the flexible printed circuit board comprises a functional device and a flexible printed circuit board, wherein the functional device is electrically connected with the flexible printed circuit board and a board-to-board connector assembly.