CN215499051U

CN215499051U - Electronic device

Info

Publication number: CN215499051U
Application number: CN202120968569.2U
Authority: CN
Inventors: 罗欣; 伍伟竞; 尚空空; 邓子默
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-05-07
Filing date: 2021-05-07
Publication date: 2022-01-11
Anticipated expiration: 2031-05-07

Abstract

The application discloses electronic equipment belongs to the technical field of communication. The electronic device includes: a display screen support; the loudspeaker is arranged on the display screen bracket; the main board is arranged on the display screen support, an avoidance hole is formed in the main board, and one part of the loudspeaker is located in the avoidance hole; the shielding cover is connected with the mainboard and covers the loudspeaker; wherein the speaker, the main board and the shield case together form a closed back cavity. According to the scheme, the problems that the size of the main board of the conventional electronic equipment is small and the sound effect is poor can be solved.

Description

Electronic device

Technical Field

The application belongs to the technical field of communication, and particularly relates to an electronic device.

Background

In the existing electronic device, in order to meet the continuous rich audio-visual requirements of users, a plurality of speakers are usually configured.

Conventional speakers are generally classified into a closed type speaker, a semi-open type speaker, a full-open type speaker, and the like. Electronic equipment is last mostly to set up half open speaker with reduce cost, however, half open speaker's rear chamber volume is generally great, has occupied the space that sets up of mainboard, leads to the mainboard size less. If the size of the main board is increased, the volume of the rear cavity of the semi-open type loudspeaker is reduced, and therefore the sound effect of the electronic equipment is poor.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application aims to provide electronic equipment which can solve the problems that the size of a main board of the existing electronic equipment is small and the sound effect is poor.

In order to solve the technical problem, the present application is implemented as follows:

an embodiment of the present application provides an electronic device, which includes:

a display screen support;

the loudspeaker is arranged on the display screen bracket;

the main board is arranged on the display screen support, an avoidance hole is formed in the main board, and one part of the loudspeaker is located in the avoidance hole;

the shielding cover is connected with the mainboard and covers the loudspeaker;

wherein the speaker, the main board and the shield case together form a closed back cavity.

In the embodiment of the application, when the loudspeaker arranged on the display screen bracket vibrates, the loudspeaker, the main board and the shielding case can drive the air in the closed back cavity formed by the loudspeaker, the main board and the shielding case together to vibrate. Offer on the mainboard and dodge the hole, partly be located dodge downthehole of speaker, that is to say, the mainboard sets up around the speaker, therefore the mainboard can be bigger towards the ascending extension degree of direction of speaker to can make the mainboard size bigger. In addition, the space that forms between shield cover and the mainboard is great, consequently can make the volume of sealing the back chamber bigger to can promote electronic equipment's audio. Known from the above-mentioned content, form the closed back chamber through speaker, mainboard and shield cover jointly for the closed back chamber can not restrict the mainboard size, consequently, when taking into account the closed back chamber volume, the mainboard size also can set up bigger. In addition, because the sealing performance of the closed back cavity is strong, high-speed flowing gas generated during the working of the loudspeaker cannot leak out, so that vibration caused by impacting other parts of the electronic equipment can be avoided, and the use experience of a user can be improved; meanwhile, the shielding cover is connected with the mainboard and covers the loudspeaker, so that the sealing performance of the closed back cavity is ensured more easily, and the risk of gas leakage is lower.

Drawings

Fig. 1 is a schematic partial structural diagram of an electronic device disclosed in an embodiment of the present application;

FIG. 2 is a cross-sectional view of the electronic device of FIG. 1 taken along line A-A;

FIG. 3 is an exploded view of FIG. 2;

fig. 4 is a partially enlarged view of fig. 2 at B.

Description of reference numerals:

100-a display screen bracket, 101-a first groove, 102-a second groove and 103-a second through hole;

200-a loudspeaker;

300-main board, 301-avoidance hole;

400-a shielding cover, 410-a main body part, 420-a connecting part and 430-a flanging part;

500-soldering tin;

600-closed back volume, 610-first volume, 620-second volume;

700-speaker front cavity;

810-electric connector, 820-fastener, 830-perforation, 840-foam and 850-double-sided adhesive tape.

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, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

The electronic device provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

As shown in fig. 1 to 4, the present application provides an electronic device including a display screen support 100, a speaker 200, a main board 300, and a shield case 400.

The display screen bracket 100 is a carrier for the display screen of the electronic device and the internal components thereof, and is also a mounting base for the speaker 200 and the main board 300.

The speaker 200 is provided to the screen support 100, and the speaker 200 generates sound by vibrating air around it.

The main board 300 is disposed on the display screen bracket 100, the main board 300 has an avoiding hole 301, and a portion of the speaker 200 is disposed in the avoiding hole 301, that is, the main board 300 is disposed around the speaker 200. The electronic device may further comprise an electrical connector 810, the speaker 200 being electrically connected to the main board 300 via the electrical connector 810. The main board 300 is provided with a through hole 830, so that the main board 300 can be fixed to the display screen bracket 100 by a fastener 820 passing through the through hole 830.

The shield can 400 is connected to the main board 300 and the shield can 400 covers the loudspeaker 200, i.e. the loudspeaker 200 is at least partially located within the shield can 400. When the speaker 200 is operated, the air around the speaker vibrates, and the flow rate of the vibrated air is increased, so that the vibrated air may impact devices in the electronic equipment, and the existence of the shield cover 400 may prevent the air flow from impacting other devices in the electronic equipment.

Wherein the loudspeaker 200, the main board 300 and the shielding can 400 together form a closed back volume 600. The speaker 200, the main board 300, and the shield case 400 may be sealed by a double-sided tape 850, a foam 840, and other components having a sealing function, so that the closed rear cavity 600 is completely sealed, and gas in the closed rear cavity 600 is prevented from flowing out.

In the embodiment of the present application, when the speaker 200 disposed on the display screen support 100 vibrates, it may drive the air in the closed rear cavity 600 formed by the speaker 200, the main board 300, and the shield can 400 together to vibrate. The main board 300 has an avoiding hole 301 formed therein, and a portion of the speaker 200 is located in the avoiding hole 301, that is, the main board 300 is disposed around the speaker 200, so that the main board 300 can extend to a greater extent in a direction toward the speaker 200, thereby increasing the size of the main board 300. In addition, the space formed between the shield case 400 and the main board 300 is large, so that the volume of the closed rear cavity 600 can be made larger, and the sound effect of the electronic device can be improved. As can be seen from the above, the speaker 200, the main board 300 and the shielding case 400 together form the closed rear cavity 600, so that the size of the main board 300 is not limited by the closed rear cavity 600, and therefore, the size of the main board 300 can be set to be larger while considering the volume of the closed rear cavity 600. In addition, because the sealing performance of the closed back cavity 600 is strong, the high-speed flowing gas generated when the loudspeaker 200 works cannot leak out, so that the vibration caused by impacting other parts of the electronic equipment can be avoided, and the use experience of a user can be improved; meanwhile, since the shield can 400 is connected to the main board 300 and the shield can 400 covers the speaker 200, the sealing property of the closed rear cavity 600 is more easily ensured and the risk of gas leakage is lower.

In an alternative embodiment, in order to further increase the volume of the closed rear cavity 600, a gap may be provided between the inner surface of the avoiding hole 301 and the outer surface of the speaker 200, and the speaker 200 is hermetically connected to the display screen bracket 100, so that the display screen bracket 100, the speaker 200, the main board 300 and the shielding case 400 form the closed rear cavity 600 together. In this embodiment, the gap between the inner surface of the escape hole 301 and the outer surface of the speaker 200 and the space in the display screen bracket 100 communicating with the gap may also participate in forming the closed rear cavity 600, and thus, the volume of the closed rear cavity 600 may be further increased.

In another alternative embodiment, the speaker 200 is disposed on the display screen bracket 100, and in this embodiment, the total thickness of the structure formed after the speaker 200 and the display screen bracket 100 are assembled is the sum of the thickness of the display screen bracket 100 and the thickness of the speaker 200, so that the thickness of the electronic device is larger. Therefore, in a further alternative embodiment, the display screen bracket 100 is provided with the first groove 101, and the speaker 200 is disposed in the first groove 101, in which case, the bottom of the speaker 200 may be located in the first groove 101. In this embodiment, since the speaker 200 is disposed in the first recess 101, the total thickness of the structure formed after the assembly of the display bracket 100 and the speaker 200 is less than the sum of the thickness of the display bracket 100 and the thickness of the speaker 200. Therefore, the thickness of the electronic apparatus in this embodiment is smaller.

In one embodiment, the second through hole 103 is formed at the bottom of the first recess 101, the speaker 200 is disposed toward the second through hole 103, the display screen support 100 and the speaker 200 together form a speaker front cavity 700, and the speaker front cavity 700 is located at a side of the speaker 200 away from the shielding case 400. When the speaker 200 disposed on the display screen support 100 vibrates, it may vibrate by driving air in the speaker front cavity 700, thereby generating sound waves, so that a user may hear sounds emitted from the electronic device. Set up second through-hole 103 in the bottom of first recess 101, speaker 200 sets up towards second through-hole 103, can utilize display screen support 100 and speaker 200 to form speaker antechamber 700 on the one hand, makes speaker antechamber 700's structure simpler, thereby on the other hand can reduce the volume of display screen support 100 and reduce the weight of display screen support 100, and then can make electronic equipment lighter.

In another embodiment, in a direction perpendicular to the main board 300, an orthographic projection area of the first groove 101 is smaller or larger than an orthographic projection area of the avoiding hole 301. When the orthographic projection area of the first groove 101 is smaller than that of the avoiding hole 301, that is, the size of the avoiding hole 301 is larger, the area of the main board 300 is smaller, which is not beneficial to improving the utilization rate of the main board 300; when the orthographic projection area of the first groove 101 is larger than that of the avoiding hole 301, that is, the size of the avoiding hole 301 is smaller, the first groove 101 is too large, resulting in a decrease in the strength of the display screen bracket 100. Therefore, in another alternative embodiment, the orthographic projection of the first groove 101 coincides with the orthographic projection of the avoidance hole 301. That is to say, the internal surface of first recess 101 and the internal surface parallel and level of dodging hole 301 can guarantee that the size of mainboard 300 is great on the one hand to be favorable to promoting the utilization ratio of mainboard 300, on the other hand, more be favorable to guaranteeing the structural strength of display screen support 100.

In one embodiment, the main board 300 is disposed adjacent to the display screen bracket 100. Because the setting of display screen support 100 is hugged closely to the one side of mainboard 300, consequently, the one side of mainboard 300 and the laminating of display screen support 100 can't be utilized to make the device of integration on mainboard 300 less, lead to mainboard 300's utilization ratio lower. Therefore, in a further alternative embodiment, the side of the display screen bracket 100 facing the main board 300 is provided with the second groove 102, and the main board 300 covers the second groove 102. Due to the existence of the second groove 102, one surface of the main board 300 facing the display screen support 100 can be utilized, and therefore, devices can be integrated on the surface of the main board 300 facing the display screen support 100, so that the utilization rate of the main board 300 can be improved, and heat dissipation is achieved by utilizing the space formed between the main board 300 and the second groove 102, and the heat dissipation effect of the electronic equipment is improved.

In a further embodiment, in order to further increase the volume of the closed rear cavity 600, the main board 300 may be provided with a first through hole, a first space 610 is formed between the shielding case 400 and the main board 300, the second groove 102 and the main board 300 together form a second space 620, and the first space 610 is communicated with the second space 620 through the first through hole, where the closed rear cavity 600 includes the first space 610 and the second space 620. That is, by providing the first through hole, the second space 620 formed by the second groove 102 and the main board 300 together can be used as a part of the closed rear cavity 600, so that the volume of the closed rear cavity 600 can be made larger, and the sound effect of the electronic device can be further improved.

In an alternative embodiment, the shielding can 400 is hermetically connected to the main board 300 by screws and foam. In this embodiment, since the screws need to be in threaded fit with the motherboard 300, the screws have a large acting force on the motherboard 300, and in order to balance the acting force of the screws on the motherboard 300, a plurality of screws need to be arranged at intervals, which is cumbersome to operate and easily damages the motherboard 300. Therefore, in a further alternative embodiment, the shielding can 400 is hermetically connected to the main board 300 by glue. However, in order to achieve a good seal between the shielding case 400 and the motherboard 300, the sealing width of the sealant needs to be made larger, which results in a larger area occupied by the sealant on the motherboard 300, and a partial area of the motherboard 300 cannot be utilized, thereby making the utilization rate of the motherboard 300 lower. Therefore, in another alternative embodiment, the shielding can 400 is hermetically connected to the main board 300 by the solder 500, and the solder 500 can achieve both the connection between the shielding can 400 and the main board 300 and the sealing between the two. The sealing width of the solder 500 is small, so that the occupied area of the main board 300 is small, and the solder 500 can directly seal and connect the shielding case 400 and the main board 300, so that one layer of sealing auxiliary material can be saved.

In another alternative embodiment, the shielding case 400 includes a main body portion 410 and a connecting portion 420, a plane where the main body portion 410 is located is parallel to the motherboard 300, the main body portion 410 is connected to the motherboard 300 through the connecting portion 420, and the connecting portion 420 is vertically connected to both the main body portion 410 and the motherboard 300. Since the thickness of the connection part 420 is small, the connection area between the connection part 420 and the main board 300 is small, and the connection strength between the two is insufficient. Therefore, the shielding case 400 may further include a flanged portion 430, the main body portion 410 is connected to the flanged portion 430 through a connecting portion 420, a plane of the main body portion 410 is parallel to a plane of the flanged portion 430, the flanged portion 430 is disposed around the connecting portion 420, and the connecting portion 420 is connected to the main board 300 through the flanged portion 430. In this case, the connection area between the burring part 430 and the main plate 300 is larger, thereby improving the connection strength therebetween.

In a further alternative embodiment, the flange 430 extends from one end of the connecting portion 420 in a direction close to the speaker 200, in which case the flange 430 extends toward the inside of the shield case 400, and therefore, since the flange 430 is not visible, a situation may occur in which a part of the flange 430 is not connected to the main board 300 during the sealing connection, thereby resulting in a poor sealing effect of the closed rear cavity 600. Therefore, in another alternative embodiment, the burring part 430 extends from one end of the connection part 420 in a direction away from the speaker 200. In this case, since the burring 430 extends to the outside of the shield case 400, the burring 430 is visible, and when the burring 430 and the main board 300 are connected, the burring 430 and the main board 300 cannot be connected, and thus, the sealing property of the closed rear cavity 600 can be improved. Meanwhile, the burring 430 does not occupy the inner space of the shield can 400, and the closed rear cavity 600 can be enlarged, thereby improving sound effects.

The electronic device disclosed in the embodiment of the present application may be a smart phone, a tablet computer, an electronic book reader, a wearable device (e.g., a smart watch), an electronic game machine, and the like, and the specific kind of the electronic device is not limited in the embodiment of the present application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. An electronic device, comprising:

a display screen support;

the loudspeaker is arranged on the display screen bracket;

the shielding cover is connected with the mainboard and covers the loudspeaker;

2. The electronic device of claim 1, wherein a gap is formed between an inner surface of the avoiding hole and an outer surface of the speaker, the speaker is hermetically connected with the display screen bracket, and the display screen bracket, the speaker, the main board and the shield cover together form the closed back cavity.

3. The electronic device of claim 1, wherein the display screen bracket is provided with a first recess, and wherein the speaker is disposed in the first recess.

4. The electronic device of claim 3, wherein a second through hole is formed in the bottom of the first groove, the speaker is disposed toward the second through hole, the display screen support and the speaker together form a speaker front cavity, and the speaker front cavity is located on a side of the speaker away from the shield case.

5. The electronic device of claim 3, wherein an orthographic projection of the first groove coincides with an orthographic projection of the avoidance hole in a direction perpendicular to the motherboard.

6. The electronic device of claim 1, wherein a second groove is formed on a surface of the display screen bracket facing the main board, and the main board covers the second groove.

7. The electronic device according to claim 6, wherein the main board is provided with a first through hole, a first space is formed between the shielding case and the main board, the second groove and the main board together form a second space, the first space is communicated with the second space through the first through hole, and the closed rear cavity comprises the first space and the second space.

8. The electronic device of claim 1, wherein the shield enclosure is hermetically connected to the motherboard by solder.

9. The electronic device according to claim 1, wherein the shield case includes a main body portion, a connecting portion and a flange portion, the main body portion is connected to the flange portion through the connecting portion, a plane of the main body portion is parallel to a plane of the flange portion, the connecting portion is connected to the main body portion perpendicularly, the flange portion is disposed around the connecting portion, and the connecting portion is connected to the main board through the flange portion.

10. The electronic device according to claim 9, wherein the burring extends from one end of the connecting portion in a direction away from the speaker.