CN211481302U

CN211481302U - Electronic equipment

Info

Publication number: CN211481302U
Application number: CN202020510451.0U
Authority: CN
Inventors: 余敏
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-04-09
Filing date: 2020-04-09
Publication date: 2020-09-11
Anticipated expiration: 2030-04-09

Abstract

The utility model discloses an electronic equipment, include: the first shell and the second shell are oppositely arranged, an accommodating space is formed between the first shell and the second shell, and a grounding end is arranged on the surface of the second shell facing the first shell; the FPC board is arranged in the accommodating space and fixed on the surface of the first shell facing the second shell, and an electric connecting end is arranged on the FPC board; the plastic support and the metal elastic sheet are integrally connected, the plastic support and the metal elastic sheet are arranged in the accommodating space, and the metal elastic sheet is respectively connected with the grounding end and the electric connection end. The utility model provides an electronic equipment can reduce shell fragment and paster on the PCB board, has shortened the ground connection route and can realize better ground connection effect, can guarantee the fastness of connection simultaneously, avoids droing of metal shrapnel.

Description

Electronic equipment

Technical Field

The utility model relates to an electronic product technical field especially relates to an electronic equipment.

Background

With the development of electronic devices, functions integrated by the electronic devices are gradually increased, and the grounding of multiple devices is required on the premise of realizing the functions of the electronic devices, and the grounding structure of the corresponding device is described below by taking a call function as an example.

As a first demand of the user for the electronic device, the call quality is affected by various factors, which greatly depend on the performance of the antenna. There are many types and implementations of antennas, and generally, there are an antenna FPC (flexible printed Circuit) form, an LDS (Laser-Direct-structuring) antenna, an antenna formed by a metal bezel or a metal battery cover, and the like, where the antenna FPC form is one of the most common forms at present due to its low cost.

A common implementation and assembly of the antenna FPC version is shown in fig. 1. The antenna FPC board 101 is attached to the rear case 102. The antenna dome 103 is attached to a PCB (Printed Circuit Board) Board 104. The PCB 104 is fastened to the front case 106 through the bracket 105 and the screws, and when the front case 106 and the rear case 102 are fastened by the snap fit, the gold fingers of the antenna FPC board 101 contact with the bumps of the antenna clips 103. The three antenna clips 103 on the PCB 104 have grounding points (no signal line connection) in addition to the feeding points (signal line connection with the PCB), and are grounded to the metal of the front case 106 through the paths of the PCB 104 and the conductive foam 107, as shown in fig. 2. The structural style of the grounding elastic sheet patch in the antenna elastic sheet on the PCB requires larger area of the PCB, and under the condition that the space of the whole machine is certain, the larger the area of the PCB is, the smaller the space of a structural part is, and the structural strength is influenced. In addition, the grounding between the front shell and the front shell needs to pass through two paths of the PCB and the conductive foam, the grounding path is long, the impedance is large, the grounding effect is poor, and the performance of the antenna is affected.

In summary, the grounding form of the existing device has the problems of affecting the spatial layout and structural strength and causing the long grounding path to affect the performance of the device.

SUMMERY OF THE UTILITY MODEL

The utility model provides an electronic equipment to solve current ground connection form and influence spatial layout and structural strength and lead to the long problem that influences the device performance of ground connection path.

In order to solve the technical problem, the utility model discloses a realize like this:

an embodiment of the utility model provides an electronic equipment, include:

the device comprises a first shell and a second shell which are oppositely arranged, wherein an accommodating space is formed between the first shell and the second shell, and a grounding end is arranged on the surface of the second shell facing the first shell;

the FPC board is arranged in the accommodating space and fixed on the surface of the first shell facing the second shell, and an electric connection end is arranged on the FPC board;

the plastic support and the metal elastic sheet are arranged in the accommodating space, and the metal elastic sheet is respectively connected with the grounding end and the electric connection end.

The embodiment of the utility model provides an in, through with metal shrapnel and plastic support body coupling to connect the earthing terminal on electric connection end on the FPC board and the second casing respectively with metal shrapnel, can reduce shell fragment and paster on the PCB board, allow to realize ground connection under more extreme space, subtract and shorten ground connection route and can realize better ground connection effect, can guarantee the fastness of connecting simultaneously, avoid droing of metal shrapnel.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention 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 for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a schematic diagram of a prior art antenna FPC assembly structure of an electronic device;

FIG. 2 is a schematic diagram of a prior art antenna FPC assembly structure of an electronic device;

fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present invention;

FIG. 4 is a schematic view showing an integrated connection between a plastic bracket and a metal dome according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a plastic bracket and a metal dome according to an embodiment of the present invention;

fig. 6 is a second schematic structural diagram of an electronic device according to an embodiment of the present invention;

fig. 7 is a schematic view of a scratch-proof structure formed by a metal elastic sheet of an electronic device according to an embodiment of the present invention;

fig. 8 is a third schematic structural diagram of an electronic device according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

An embodiment of the utility model provides an electronic equipment, as shown in fig. 3 and fig. 4, include:

the device comprises a first shell 1 and a second shell 2 which are oppositely arranged, wherein an accommodating space is formed between the first shell 1 and the second shell 2, and a grounding end is arranged on the surface of the second shell 2 facing the first shell 1;

the FPC board 3 is arranged in the accommodating space and fixed on the surface of the first shell 1 facing the second shell 2, and an electric connection end is arranged on the FPC board 3;

the plastic support 4 and the metal elastic sheet 5 are integrally connected, the plastic support 4 and the metal elastic sheet 5 are arranged in the accommodating space, and the metal elastic sheet 5 is respectively connected with the grounding end and the electric connection end.

The electronic equipment comprises a first shell 1, a second shell 2, a FPC board 3 and an integrally connected plastic support 4 and a metal elastic sheet 5 which are fixed on the surface of the first shell 1 facing the second shell 2, wherein an accommodating space for accommodating the FPC board 3 is formed between the first shell 1 and the second shell 2, the plastic support 4 and the metal elastic sheet 5 are provided with electric connection ends on the FPC board 3, an earthing end is arranged on the surface of the second shell 2 facing the first shell 1, and the metal elastic sheet 5 integrally connected with the plastic support 4 is respectively connected with the earthing end and the electric connection ends.

The first casing 1 is a rear casing of the electronic device, and the second casing 2 is a front casing of the electronic device. Plastic support 4 and the form body coupling that metal shrapnel 5 accessible inserts were moulded plastics, through with metal shrapnel 5 integrated on plastic support 4, can guarantee metal shrapnel 5's installation fastness, avoid dropping of metal shrapnel 5 in the transportation. And through setting up metal shrapnel 5 on plastic support 4, can reduce the shell fragment quantity that sets up on the PCB board, and then reduce SMT (Surface mounted technology) technology, optimized the inside spatial structure of electronic equipment, allow to realize ground connection under more extreme space.

Through with the electric connection end on metal shrapnel 5 and the FPC board 3 and the earthing terminal lug connection on the second casing 2, can make the earth point pass through metal shrapnel 5 direct ground connection, subtract the short ground path, can realize better ground connection effect.

The FPC board 3 can be an antenna FPC, so that a better antenna grounding effect is achieved, and the FPC board 3 can be replaced by other devices to achieve effective grounding of the other devices.

Above-mentioned structural style can reduce shell fragment and paster on the PCB board, optimizes spatial structure, has reduced the ground connection route and can realize better ground connection effect, can guarantee the fastness of connection simultaneously, avoids droing of metal shell fragment.

Optionally, in an embodiment of the present invention, as shown in fig. 3 to fig. 5, bumps 51 are respectively disposed on the surfaces of the metal elastic sheet 5 connected to the grounding terminal and the electrical connection terminal. By providing the bumps 51 on the metal elastic sheet 5, the metal elastic sheet 5 can be better contacted and grounded with the grounding end of the second housing 2 and the electrical connection end on the FPC board 3. The number of the bumps 51 disposed on the surface of the metal elastic sheet 5 connected to the ground terminal and the electrical connection terminal may be the same or different, and the number of the bumps 51 may be set according to the requirement, for example, 4 bumps 51 may be disposed on the surface connected to the ground terminal.

Optionally, in an embodiment of the present invention, as shown in fig. 3 to 5, the metal elastic sheet 5 includes a planar body 52 and a first bending body 53 connected to the planar body 52; the planar body 52 is connected to a ground terminal, and the first bent body 53 is connected to an electrical connection terminal.

The metal elastic sheet 5 comprises a planar body 52 and a first bending body 53 which are integrally formed, wherein the planar body 52 and the first bending body 53 are both provided with bumps 51, the planar body 52 is contacted with the second shell 2 to further realize the contact between the bumps 51 on the planar body 52 and the ground terminal of the second shell 2, and the first bending body 53 is contacted with the FPC board 3 to further realize the connection between the bumps 51 on the first bending body 53 and the electric connection terminal of the FPC board 3. Compared with the existing structure, the grounding path reduces the PCB and the conductive foam, and the grounding effect is better. In addition, due to the fact that the thickness of the PCB is reduced, grounding of devices (such as antennas) can be achieved in a more limited space, and the PCB is enabled to have more space for wiring.

Optionally, in an embodiment of the present invention, as shown in fig. 3 to fig. 5, the electronic device further includes a bolt 6, the planar body 52 is provided with an opening 521, the second housing 2 is provided with a positioning hole, the opening 521 and the positioning hole are distributed relatively, and the opening 521, the positioning hole and the bolt 6 are adapted, and the planar body 52 and the second housing 2 are fixedly connected through the bolt 6, the opening 521 and the positioning hole.

Be provided with trompil 521 on the body 52 of face, cooperate through bolt 6 and locating hole on trompil 521 and the second casing 2, realize the fixed connection of the body 52 of face and second casing 2, and then realize locking metal shrapnel 5 and second casing 2 through bolt 6 for the body 52 of face and earthing terminal interference contact guarantee the ground connection effect.

Optionally, in an embodiment of the present invention, as shown in fig. 4 to fig. 6, the electronic device further includes a conductive adhesive layer 7, the planar body 52 is adhered to the second housing 2 through the conductive adhesive layer 7, and the planar body 52 is electrically connected to the ground terminal of the second housing 2 through the conductive adhesive layer 7, where the conductive adhesive layer 7 is a conductive double-sided tape.

If the metal elastic sheet 5 cannot be locked with the second housing 2 through a bolt due to space reasons, a conductive adhesive layer 7 can be added between the planar body 52 of the metal elastic sheet 5 and the ground terminal of the second housing 2 to ensure reliable grounding, wherein the conductive adhesive layer 7 can be preferably a conductive double-sided adhesive tape or other conductive structures with adhesive properties, which are not illustrated one by one, and the planar body 52 and the second housing 2 are connected through the conductive adhesive layer 7, so that the structure can be simplified while the grounding effect is ensured.

Optionally, in an embodiment of the present invention, as shown in fig. 7, an end of the first bending body 53 connected to the planar body 52 has an extending portion, and the extending portion forms a scraping-preventing structure 531 forming a predetermined angle with the planar body 52.

Due to the problem of assembly operation or design space, the bent portion of the end of the first bending body 53 connected to the planar body 52 may collide with other parts during assembly, so that the first bending body 53 may be optimized to form the scratch prevention structure 531 at the end of the first bending body 53 connected to the planar body 52. In the case where the connection between the planar body 52 and the second housing 2 is achieved by bolts or conductive adhesive layers, the scratch-proof structure 531 may be formed at one end of the first bending body 53 connected to the planar body 52.

Optionally, in an embodiment of the present invention, as shown in fig. 8, the metal elastic sheet includes a first bending body 53, a planar body 52, and a second bending body 54, which are connected in sequence, and the first bending body 53 and the second bending body 54 are disposed on two opposite sides of the planar body 52; the first bent body 53 is connected to an electrical connection terminal, and the second bent body 54 is connected to a ground terminal. The first bending member 53 and the second bending member 54 are arranged symmetrically with respect to the center of the planar member 52.

If the space of the electronic device in the thickness direction is relatively sufficient, the connection between the metal elastic sheet and the ground terminal of the second housing 2 can also be realized by a pre-pressing manner, at this time, the first bending body 53 is connected with the electrical connection terminal of the FPC board 3, and the second bending body 54 is connected with the ground terminal of the second housing 2. The thickness direction of the electronic device is the connection line direction of the first casing 1 and the second casing 2. By adopting this way, the ground connection form can be enriched.

Optionally, in an embodiment of the present invention, as shown in fig. 4, the electronic device further includes a sound cavity bracket and/or a motherboard bracket, and the sound cavity bracket or the motherboard bracket is reused as the plastic bracket 4. Namely, the plastic support 4 integrally connected with the metal elastic sheet 5 can be a sound cavity support or a mainboard support matched with a mainboard.

The utility model discloses electronic equipment is through with metal shrapnel and plastic support body coupling to connect the earthing terminal on electric connection end on the FPC board and the second casing respectively with metal shrapnel, can reduce shell fragment and paster on the PCB board, allow to realize ground connection under the space of more limit, subtract and shorten the grounding path and can realize better ground connection effect, can guarantee the fastness of connection simultaneously, avoid droing of metal shrapnel. The connection between the metal elastic sheet and the second shell is realized by adopting a bolt, a conductive adhesive layer or a prepressing mode, so that the grounding connection structure can be enriched.

The embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention.

Claims

1. An electronic device, comprising:

the device comprises a first shell (1) and a second shell (2) which are oppositely arranged, wherein an accommodating space is formed between the first shell (1) and the second shell (2), and a grounding end is arranged on the surface of the second shell (2) facing the first shell (1);

the FPC board (3) is arranged in the accommodating space and fixed on the surface of the first shell (1) facing the second shell (2), and an electric connection end is arranged on the FPC board (3);

the plastic support (4) and the metal elastic sheet (5) are connected integrally, the plastic support (4) and the metal elastic sheet (5) are arranged in the accommodating space, and the metal elastic sheet (5) is connected with the grounding end and the electric connection end respectively.

2. The electronic device according to claim 1, wherein the surfaces of the metal elastic sheet (5) connected to the ground terminal and the electrical connection terminal are respectively provided with a bump (51).

3. The electronic device according to claim 1, wherein the metal dome (5) comprises a planar body (52) and a first bending body (53) connected with the planar body (52);

the planar body (52) is connected with the grounding end, and the first bending body (53) is connected with the electric connection end.

4. The electronic device according to claim 3, further comprising a bolt (6), wherein an opening (521) is formed in the planar body (52), a positioning hole is formed in the second housing (2), the opening (521) and the positioning hole are distributed oppositely, the opening (521) and the positioning hole are matched with the bolt (6), and the planar body (52) and the second housing (2) are fixedly connected through the bolt (6), the opening (521) and the positioning hole.

5. The electronic device according to claim 3, further comprising a conductive adhesive layer (7), wherein the planar body (52) is adhered to the second housing (2) through the conductive adhesive layer (7), and the planar body (52) is electrically connected to a ground terminal of the second housing (2) through the conductive adhesive layer (7).

6. The electronic device according to claim 5, characterized in that the conductive adhesive layer (7) is a conductive double-sided tape.

7. The electronic device according to claim 4 or 5, wherein the end of the first bending body (53) connected to the planar body (52) has an extension portion, and the extension portion forms a scratch-proof structure (531) with a preset angle to the planar body (52).

8. The electronic device according to claim 1, wherein the metal dome (5) comprises a first bending body (53), a planar body (52) and a second bending body (54) which are connected in sequence, wherein the first bending body (53) and the second bending body (54) are arranged on two opposite sides of the planar body (52);

the first bending body (53) is connected with the electric connection end, and the second bending body (54) is connected with the grounding end.

9. The electronic device according to claim 8, wherein the first bending body (53) and the second bending body (54) are distributed symmetrically with respect to the center of the planar body (52).

10. The electronic device according to claim 1, further comprising a sound cavity bracket and/or a motherboard bracket, wherein the sound cavity bracket or the motherboard bracket is reused as the plastic bracket (4).