CN210377227U

CN210377227U - Shell assembly and mobile terminal

Info

Publication number: CN210377227U
Application number: CN201921652728.7U
Authority: CN
Inventors: 程超; 樊志超
Original assignee: Ireader Technology Co Ltd; Zhangyue Technology Co Ltd
Current assignee: Ireader Technology Co Ltd; Zhangyue Technology Co Ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-04-21
Anticipated expiration: 2029-09-29
Also published as: WO2021056772A1

Abstract

The utility model relates to the technical field of electronic display equipment, in particular to a shell assembly and a mobile terminal, wherein the shell assembly comprises a shell, a sound cavity assembly and an electromagnetic shielding piece; the front side of the shell is provided with a display area, the back side of the shell is provided with a first mounting groove, and a sound raising area is arranged in the first mounting groove; the sound cavity component comprises a sound cavity shell and a loudspeaker arranged in the sound cavity, the sound cavity shell is arranged in the first mounting groove, and the loudspeaker is opposite to the sound raising area; the electromagnetic shielding part comprises a shielding sheet, and the shielding sheet is arranged between the sound raising area and the display area and is used for shielding electromagnetic interference of the sound raising area to the display area. Through set up the shielding piece between vocal district and display area to shield the magnetic field that releases from the vocal district, shield the magnetic field that releases from the speaker promptly, avoid the magnetic field that the speaker released to produce electromagnetic interference with the electromagnetic film, finally avoided the speaker to disturb the movement track coordinate data of stylus.

Description

Shell assembly and mobile terminal

Technical Field

The utility model relates to an electronic display equipment technical field especially relates to casing assembly and mobile terminal.

Background

In some mobile terminals, such as readers having a handwriting function, the handwriting function is implemented based on the electromagnetic induction principle. Set up the electromagnetic film or the electromagnetic plate that the one deck is the same with screen size at the screen back of reading the ware, form electromagnetic induction between handwriting pen and electromagnetic film or the electromagnetic plate, can respond to the removal orbit of handwriting pen through electromagnetic film or electromagnetic screen. However, most readers have a speaker to implement an audio playing function, and a magnetic field generated by the speaker easily interferes with an electromagnetic film, so as to interfere with the coordinate data of the movement track of the stylus.

SUMMERY OF THE UTILITY MODEL

Accordingly, it is desirable to provide a housing assembly and a mobile terminal for solving the problem that a speaker interferes with the coordinate data of the movement track of a stylus pen in the mobile terminal.

In order to solve the technical problem, the utility model provides a shell assembly, which comprises a shell, a sound cavity assembly and an electromagnetic shielding part;

the front side of the shell is provided with a display area, the back side of the shell is provided with a first mounting groove, and a sound raising area is arranged in the first mounting groove;

the sound cavity component comprises a sound cavity shell and a loudspeaker arranged in the sound cavity, the sound cavity shell is arranged in the first mounting groove, and the loudspeaker is opposite to the sound raising area;

the electromagnetic shielding part comprises a shielding sheet, and the shielding sheet is arranged between the sound raising area and the display area and is used for shielding electromagnetic interference of the sound raising area to the display area.

In the shell assembly, the handwriting pen writes contents on a screen, coordinate data of handwriting are obtained through induction of the electromagnetic film, the coordinate data are transmitted to the main chip, the main chip outputs written images after data processing, and the written images are displayed through a display screen of the reader. The utility model discloses in, through set up the shielding piece between the vocal district and the display area to the shielding is followed the magnetic field that the vocal district released, shields the magnetic field that releases from the speaker promptly, avoids the magnetic field that the speaker released and electromagnetic film to produce electromagnetic induction, has finally avoided the speaker to disturb the movement track coordinate data of handwriting pen.

In one embodiment, the front surface of the housing is further provided with a non-display area, the first mounting groove faces the non-display area, and the shielding sheet is arranged on a first side wall of the first mounting groove.

In one embodiment, the first sidewall is provided with a receiving groove for receiving the shielding plate, and the shielding plate is disposed in the receiving groove.

In one embodiment, a second mounting groove is arranged at the position of the front surface of the shell corresponding to the display area, and the second mounting groove is recessed from the front surface of the shell to the back surface of the shell;

the first mounting groove is recessed from a rear surface of the housing toward a front surface of the housing.

In one embodiment, the electromagnetic shielding member further includes a fixing piece, one end of the fixing piece is connected to the shielding piece, and the other end of the fixing piece is fixedly connected to the back surface of the housing.

In one embodiment, one side edge of the fixing piece is connected to one side edge of the shielding piece, and the fixing piece and the shielding piece are arranged at an angle which is greater than or equal to 45 degrees and less than or equal to 135 degrees.

In one embodiment, the electromagnetic shielding member further includes a bending section, the cross section of the bending section is U-shaped, one end of the bending section is connected to the fixing piece, and the other end of the bending section is connected to the shielding piece.

In one embodiment, the shielding plate, the bending section and the fixing plate are integrally formed.

In one embodiment, the back of the shell is provided with a connecting column;

the fixing piece is provided with a connecting hole matched with the connecting column, and the fixing piece is fixed on the connecting column.

In order to solve the technical problem, the utility model also provides a mobile terminal, mobile terminal includes foretell casing subassembly.

Drawings

Fig. 1 is a schematic back view of a housing assembly according to an embodiment of the present invention;

fig. 2 is an exploded view of a housing assembly provided by an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

fig. 4 is a schematic view of an electromagnetic shield according to an embodiment of the present invention;

fig. 5 is a side view of an electromagnetic shield according to an embodiment of the present invention.

The reference numerals in the specification are as follows:

1. a housing; 11. a display area; 12. a first mounting groove; 121. a first side wall; 13. a sound raising area; 14. a non-display area; 15. a containing groove; 16. connecting columns;

2. a sound cavity assembly; 21. a sound cavity housing;

3. an electromagnetic shield; 31. a shielding sheet; 32. a fixing sheet; 321. connecting holes; 33. and (6) bending the section.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the methods or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The embodiment of the utility model provides a be applied to mobile terminal's casing assembly, particularly, as shown in FIG. 1, casing assembly includes casing 1, sound chamber subassembly 2 and electromagnetic shield 3.

Wherein, the front of casing 1 is equipped with display area 11, and the first mounting groove 12 that the back of casing 1 was equipped with is equipped with loudspeaker 13 in the first mounting groove 12. To facilitate viewing of the main structure of the housing assembly, the view of the housing assembly in fig. 1 is a back view, and the display area 11 indicated in fig. 1 is actually located on the front side of the housing assembly in fig. 1.

As shown in fig. 2, the sound cavity assembly 2 includes a sound cavity housing 21 and a speaker (not shown in the figure) disposed in the sound cavity housing 21, the sound cavity housing 21 is disposed in the first mounting groove 12, and the speaker faces the sound emitting area 13.

As shown in fig. 4 and 5, the electromagnetic shield 3 includes a shielding sheet 31, and the shielding sheet 31 is disposed between the sound emission region 13 and the display region 11 and is used for shielding electromagnetic interference of the sound emission region 13 to the display region 11.

In the mobile terminal, the loudspeaker receives the audio electrical signal, and the audio electrical signal is converted into vibration of a vibrating diaphragm in the loudspeaker through electromagnetic induction, so that sound production is realized. When the loudspeaker works, a power amplifier electric field is generated, and the loudspeaker is provided with a magnet, so that a strong magnetic field exists around the loudspeaker, and electromagnetic interference is generated on components in the display area 11. Specifically, a layer of electromagnetic induction module, such as an electromagnetic film or an electromagnetic screen, having the same or similar size to the display screen is disposed on the back of the display screen (not shown in the figure), and the electromagnetic induction module is exemplified by the electromagnetic film hereinafter. When the handwriting pen is used for handwriting (not shown in the figure), electromagnetic induction is formed between the handwriting pen and the electromagnetic film, and the moving track of the handwriting pen can be induced through the electromagnetic film. The handwriting pen writes contents on the display screen, the electromagnetic film obtains coordinate data of handwriting through electromagnetic induction, the coordinate data are transmitted to the main chip, and the main chip (not shown in the figure) outputs a written image after data processing and displays the written image through the display screen of the reader. In the reader, the magnetic field generated by the loudspeaker is easy to interfere with the electromagnetic film, so that the electromagnetic film generates wrong moving track coordinate data. In this embodiment, the shielding sheet 31 is disposed between the sound emitting area 13 and the display area 11, so as to shield the magnetic field released from the sound emitting area 13, that is, shield the magnetic field released from the speaker, thereby preventing the magnetic field released from the speaker from generating electromagnetic interference with the electromagnetic film, and finally preventing the speaker from interfering with the movement track coordinate data of the stylus pen.

In an embodiment, as shown in fig. 1 and 3, the front surface of the housing 1 is further provided with a non-display area 14, the first installation groove 12 faces the non-display area 14, and the shielding plate 31 is disposed on the first side wall 121 of the first installation groove 12. In a position corresponding to the display area 11 in the housing 1, which is generally used for disposing a display screen, the non-display area 14 has a relatively thicker space so that the first mounting groove 12 has a sufficient space for mounting the sound chamber assembly 2. The shielding plate 31 is disposed on the first sidewall 121 of the first mounting groove 12, and the shielding plate 31 is located between the display area 11 and the sound-emitting area 13, that is, the first sidewall 121 corresponding to the shielding plate 31 is a sidewall of the first mounting groove 12 located between the display area 11 and the sound-emitting area 13. When the sound cavity assembly 2 is installed in the first installation groove 12, the shielding sheet 31 is located on the first side wall 121 of the first installation groove 12, and the display area 11 and the sound raising area 13 are separated by the shielding sheet 31, so that the two areas form an electromagnetic partition, and the electromagnetic interference of the magnetic field released by the loudspeaker of the sound raising area 13 to the electromagnetic film of the display area 11 is avoided.

In this embodiment, the display device may include one non-display area 14, for example, the display area 11 is on one side of the front surface of the housing 1, and the non-display area 14 is on the other side, or may include two non-display areas 14, for example, the display area 11 is in the middle of the front surface of the housing 1, and the non-display areas 14 are on both ends of the front surface of the housing 1.

In an embodiment, a second mounting groove (not shown) is disposed on the front surface of the housing 1 corresponding to the display area 11, and the second mounting groove is used for accommodating the display screen and the electromagnetic film. The second mounting groove is recessed from the front surface of the case 1 to the rear surface of the case 1, the first mounting groove 12 is recessed from the rear surface of the case 1 to the front surface of the case 1, and the second mounting groove is staggered with the first mounting groove 12. Under the crisscross condition each other of second mounting groove and first mounting groove 12, shielding plate 31 sets up on first lateral wall 121 of first mounting groove 12, and like this, shielding plate 31 just in time keeps off in the middle of electromagnetic film and speaker, and shielding plate 31 has better electromagnetic shield effect.

In an embodiment, as shown in fig. 3, the first sidewall 121 is provided with a receiving groove 15, and the shielding plate 31 is disposed in the receiving groove 15. After the accommodating groove 15 is arranged, the side wall of the first installation groove 12 is provided with a space for accommodating the shielding sheet 31, the shielding sheet 31 is prevented from occupying the space of the first installation groove 12, the problem that the structure of the sound cavity assembly 2 is changed due to the addition of the electromagnetic shielding piece 3 is avoided, the change of the shell assembly is minimized, and the adverse effect caused by the arrangement of the electromagnetic shielding piece 3 is reduced.

Specifically, the accommodating groove 15 faces the sound-raising area 13, the accommodating groove 15 extends from the back of the housing 1 to the bottom of the first mounting groove 12, and the outer contour of the accommodating groove 15 is greater than or equal to the outer contour of the shielding plate 31.

In one embodiment, as shown in fig. 4 and 5, the electromagnetic shield 3 further includes a fixing piece 32, one end of the fixing piece 32 is connected to the shielding piece 31, and the other end of the fixing piece 32 is fixedly connected to the back surface of the housing 1. In this embodiment, the fixing piece 32 is fixedly connected to the housing 1, so that the shielding piece 31 can be fixed in the first mounting groove 12, and the displacement of the shielding piece 31 is avoided.

In one embodiment, as shown in fig. 5, one side edge of the fixing piece 32 is connected to one side edge of the shielding piece 31, and the fixing piece 32 and the shielding piece 31 are disposed at an angle in a range of 45 degrees or more and 135 degrees or less. The angle formed by the fixing piece 32 and the shield piece 31 depends on the rear surface of the housing 1 and the first mounting groove 12. Specifically, an angle formed by the fixing piece 32 and the shielding piece 31 is defined as a first angle, and an angle formed by a plane on the back surface of the housing 1 for connecting with the fixing piece 32 and the first side wall 121 is defined as a second angle, and the first angle is equal to the second angle, or the first angle is slightly larger than the second angle, or the second angle is slightly larger than the first angle.

In an embodiment, as shown in fig. 4 and 5, the electromagnetic shielding member 3 further includes a bending section 33, and the middle of the bending section 33 is bent, so that the bending section 33 is U-shaped as a whole, that is, the cross section of the bending section 33 is U-shaped, one end of the bending section 33 is connected to the fixing plate 32, and the other end of the bending section 33 is connected to the shielding plate 31. In general, when the fixing piece 32 and the shielding piece 31 are formed by bending, a rounded corner is easily generated between the fixing piece 32 and the shielding piece 31, the fixing piece 32 and the shielding piece 31 are in arc transition, and the transition section is easily interfered with the installation of a sharp corner on the upper part of the first side wall 121 (specifically, the sharp corner is the corner formed by the plane for connecting with the fixing piece 32 on the back surface of the housing 1 and the first side wall 121). In the embodiment, the fixing piece 32 and the shielding piece 31 have the bent section 33 as a transition section, and the bent section 33 of the U-shape can avoid a sharp corner on the first side wall 121, so as to facilitate the installation of the electromagnetic shielding element 3.

In one embodiment, as shown in fig. 4, the fixing piece 32, the shielding piece 31 and the bending section 33 are integrally formed, and the forming manner includes sheet metal forming or casting forming. Of course, the fixing piece 32, the shielding piece 31 and the bent section 33 may be connected into a whole by clipping or welding.

In one embodiment, the electromagnetic shield 3 is a metal sheet or an electromagnetic shielding membrane.

In an embodiment, the fixing piece 32, the bending section 33 and the shielding piece 31 are of a sheet structure made of the same material, so that the shielding area of the electromagnetic shielding member 3 is increased, and the shielding effect on the magnetic field released by the speaker is increased.

In an embodiment, the shielding plate 31 is a flexible film having an electromagnetic shielding function, and the flexible film is attached to the first sidewall 121.

In some embodiments, the flexible membrane may extend to the bottom of the first mounting groove 12, and of course, the flexible membrane may also extend to the back of the housing 1, so as to increase the electromagnetic shielding area and the electromagnetic shielding effect.

In one embodiment, as shown in fig. 3 and 4, the housing 1 is provided with a connection post 16 on the rear surface thereof. The fixing piece 32 is provided with a connecting hole 321 which is matched with the connecting column 16, and the fixing piece 32 is clamped on the connecting column 16 through the connecting hole 321, so that the fixing piece 32 is fixed on the connecting column 16, and the shielding piece 31 is fixedly connected with the connecting column 16 on the back of the shell 1.

Specifically, one or more connecting columns 16 may be provided, and when a plurality of connecting columns 16 are provided, the connecting columns 16 are arranged along a position close to the first side wall 121. When a plurality of connecting columns 16 are arranged, the fixing plate 32 has better fixing effect.

The embodiment of the utility model provides a mobile terminal is still provided, including foretell casing assembly, casing 1's front is equipped with the display screen in display area 11, is equipped with the electromagnetic film at the back of display screen, and the electromagnetic film is used for producing electromagnetic induction with the stylus pen to obtain the removal orbit of stylus pen. In this embodiment, the shielding sheet 31 is disposed between the display area 11 and the speaker area 13, so as to isolate the electromagnetic interference of the speaker in the speaker area 13 to the electromagnetic film, and avoid the speaker interfering with the movement track coordinate data of the stylus pen.

In one embodiment, the mobile terminal is an ink screen reader with handwriting function.

In one embodiment, as shown in fig. 1, the housing assembly includes a front housing and a rear cover (not shown), the rear cover is fastened to a back surface of the front housing, the front housing 1 is the front housing, and fig. 1 is a schematic back view of the housing assembly with the rear cover removed.

In one embodiment, the front housing includes a center frame and a front panel. The front surface of the housing 1 is the front surface of the front panel, and the back surface of the housing 1 is the back surface of the middle frame.

In other embodiments, the mobile terminal may also be any electronic device including a mobile phone, a tablet computer, a PDA (Personal digital assistant), a POS (Point of Sales), a wearable device, and the like. Examples of mobile terminals include, but are not limited to, satellite or cellular telephones. A Personal Communications System (PCS) terminal that may combine a cellular telephone with data processing, facsimile and data communications capabilities. PDAs that may include radiotelephones, pagers, internet/intranet access, Web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers. And conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A housing assembly, comprising a housing, a sound chamber assembly, and an electromagnetic shield;

the sound cavity assembly comprises a sound cavity shell and a loudspeaker arranged in the sound cavity shell, the sound cavity shell is arranged in the first mounting groove, and the loudspeaker is opposite to the sound raising area;

the electromagnetic shielding part comprises a shielding sheet, and the shielding sheet is arranged between the sound raising area and the display area and used for shielding electromagnetic interference of the sound raising area to the display area.

2. The housing assembly of claim 1, wherein the front surface of the housing further comprises a non-display area, the first mounting groove faces the non-display area, and the shielding plate is disposed on a first side wall of the first mounting groove.

3. The housing assembly of claim 2, wherein the first sidewall has a receiving groove for receiving the shielding plate, and the shielding plate is disposed in the receiving groove.

4. The housing assembly according to claim 2 or 3, wherein a second mounting groove is provided at a position of the front surface of the housing corresponding to the display area, the second mounting groove being recessed from the front surface of the housing toward the rear surface of the housing;

5. The housing assembly of claim 2, wherein the electromagnetic shield further comprises a fixing piece, one end of the fixing piece is connected with the shielding piece, and the other end of the fixing piece is fixedly connected with the back surface of the housing.

6. The housing assembly of claim 5, wherein one side edge of the fixing piece is connected to one side edge of the shielding piece, and the fixing piece and the shielding piece are disposed at an angle in a range of 45 degrees or more and 135 degrees or less.

7. The housing assembly of claim 5, wherein the electromagnetic shield further comprises a bent section having a U-shaped cross section, one end of the bent section being connected to the fixing piece, and the other end of the bent section being connected to the shielding piece.

8. The housing assembly of claim 7 wherein the shield tabs, the bent section and the securing tabs are integrally formed.

9. The housing assembly of any one of claims 5 to 8, wherein the housing is provided with a connection post on a rear surface thereof;

10. A mobile terminal, characterized in that it comprises a housing assembly according to any one of claims 1 to 9.