CN111225098B - Public address cell-phone shell - Google Patents
Public address cell-phone shell Download PDFInfo
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- CN111225098B CN111225098B CN202010134704.3A CN202010134704A CN111225098B CN 111225098 B CN111225098 B CN 111225098B CN 202010134704 A CN202010134704 A CN 202010134704A CN 111225098 B CN111225098 B CN 111225098B
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- plate
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- mobile phone
- phone shell
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/18—Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R27/00—Public address systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Telephone Set Structure (AREA)
Abstract
The invention discloses a loudspeaker shell, which relates to the field of mobile phone peripherals and comprises a mobile phone shell and a loudspeaker structure, wherein the loudspeaker structure is arranged below a loudspeaker opening on the mobile phone shell and comprises a bevel support plate, a sound rebound plate, a contact sliding plate and a spring, the bevel support plate is rotationally connected to the back of the mobile phone shell through a rotating shaft and is divided into an upper plate part and a lower plate part, the lower end face of the lower plate part is inwards sunk to form a plate collecting space, two rectangular sliding grooves are arranged on the bottom face of the plate collecting space, an upper cover plate is arranged at the top end of the plate collecting space, and the loudspeaker structure capable of being contracted and stretched out is arranged, so that the loudspeaker structure can rebound sound towards the face of a user when in use, and the loudspeaker can hear larger sound without being contracted or being hindered.
Description
Technical Field
The invention relates to the field of mobile phone peripherals, in particular to a loudspeaker mobile phone shell.
Background
The mobile phone is an indispensable article in our daily life, the loudspeaker of the common mobile phone is at the bottom side of the mobile phone nowadays, if the sound is put outside, the sound can be spread in all directions, not only the sound which affects other people but also is transmitted into the ears of the user is very small, sometimes the user wants to put the sound outside when watching videos and playing games, but only the mobile phone can be taken to the ears to listen to the sound, and thus inconvenience can be caused to playing the mobile phone.
At present, a lot of mobile phone sound amplifying structures are available, and most of the structures are that mobile phones are placed in a larger support, then the support is placed on a table, and sound is amplified through a horn structure. However, this device is too bulky to play the phone and listen to the outgoing phone sound.
Disclosure of Invention
The invention aims to provide a loudspeaker mobile phone shell, which can be extended by arranging a telescopic and extendable loudspeaker structure, so that the loudspeaker mobile phone shell can rebound sound towards the face of a user when in use, and the user can hear larger sound without being contracted when not in use, so that the mobile phone is not influenced.
The utility model provides a public address cell-phone shell, includes cell-phone shell and public address structure, public address structure installs in cell-phone shell upper speaker open-ended below, public address structure includes dog-ear layer board, sound rebound board, contact sliding plate and spring, dog-ear layer board rotates through the rotation axis and connects in the back of cell-phone shell, and dog-ear layer board divide into upper plate portion and hypoplastron portion, the lower terminal surface of hypoplastron portion inwards sinks to form and receives the board space, the bottom surface of receiving the board space is equipped with twice rectangle spout, and receives the top in board space and is equipped with the upper cover plate, upper cover plate and hypoplastron portion sliding connection, and can leave a rectangle space on the right side of receiving the board space after the upper cover plate covers, dog-ear layer board is equipped with circular arc portion in rectangle space department;
the utility model discloses a sound anti-spring plate, including the upper plate portion of dog-ear layer board, the both sides are equipped with the spring mounting groove in, be equipped with the spring in the spring mounting groove, the contact sliding plate is through connecting the protruding fly leaf fixed connection with being connected, connect the protruding rectangle spout that is located and sliding connection with it, the both ends fixedly connected with movable connecting rod of connecting the fly leaf, the front end fixedly connected with connecting axle of movable connecting rod, the movable connecting rod rear end is articulated with swing joint spare, the connecting axle is located the spring mounting groove and sliding connection with it, and the connecting axle links to each other with the spring, the swing joint spare still articulates with sound anti-spring plate.
Preferably, the back of the mobile phone shell is provided with a camera opening, and the bottom is provided with a charging port and a loudspeaker opening.
Preferably, the contact sliding plate is slidably connected to the lower plate portion, and the movable connecting rod and the connecting movable plate are slidably connected to the bottom surface of the plate receiving space.
Preferably, the lower terminal surface of sound anti-spring plate is the inclined plane, and the up end is the arc surface, and the bottom of sound anti-spring plate is equipped with the recess, fixedly connected with connecting axle in the recess, the connecting axle rotates with swing joint spare to be connected, the width in rectangle space is greater than sound anti-spring plate thickness.
Preferably, the spring is a compression spring, the spring mounting groove is arranged in the lower plate part, the upper end of the spring mounting groove extends into the upper plate part, the length of the spring mounting groove is larger than that of the sound rebound plate, and the spring mounting groove is collinear with the movable connecting rod.
Preferably, two sides of the contact sliding plate extend outwards to form two side parts, the two side parts are fixedly connected with the connecting movable plate through connecting protrusions, the inner end surface of the contact sliding plate is a smooth surface, and straight knurling is arranged on the outer end surface.
The invention has the advantages that: simple structure uses in a flexible way, through setting up the public address structure that can shrink and stretch out, stretches out during the use, can rebound the sound to user's face, lets the user hear bigger sound, shrink when not using, can not hinder and influence the cell-phone and use.
Drawings
FIG. 1 is a rear view of the device of the present invention;
FIG. 2 is a schematic view of the overall structure of the device of the present invention;
FIG. 3 is a rear view of a sound amplifying structure in the apparatus of the present invention;
FIG. 4 is a front view of a sound amplifying structure of the device of the present invention;
FIG. 5 is a schematic view of the structure of the bevel blade and upper cover plate in the device of the present invention;
fig. 6 is an internal structural view of a sound amplifying structure in the device of the present invention;
FIG. 7 is a schematic view of the structure of the corner support plate in the device of the invention;
FIG. 8 is a schematic view of the connection structure of the contact slide plate and the movable link in the device of the present invention;
FIG. 9 is a schematic view of the structure of a contact slide plate in the device of the present invention;
FIG. 10 is a schematic view of the internal structure of the collecting plate space in the device of the present invention;
fig. 11 is a side view of a sound amplifying structure in the device of the present invention;
FIG. 12 is a schematic view of the structure of the sound baffle in the device of the present invention;
FIG. 13 is a schematic view showing the connection structure of the sound rebound board and the corner bracket in the device of the present invention;
FIG. 14 is a schematic view of the connection structure of the sound rebound board and the movable connecting rod in the device of the present invention;
the mobile phone comprises a mobile phone shell, 1-1, a camera opening, 1-2, a charging port, 2, a loudspeaker opening, 3, a sound amplifying structure, 4, a rotating shaft, 5, a bevel support plate, 5-1, an upper plate part, 5-2, a lower plate part, 5-3, an arc part, 6, a plate collecting space, 7, an upper cover plate, 8, a sound rebound plate, 8-1, a groove, 8-2, a connecting shaft, 9, a contact sliding plate, 9-1, two side parts, 10, a movable connecting rod, 10-1, a connecting shaft, 11, a movable connecting piece, 12, a connecting movable plate, 12-1, a connecting protrusion, 13, a rectangular chute, 14, a spring mounting groove, 15, a spring, 16 and a rectangular gap.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1 to 14, a loudspeaker housing comprises a mobile phone housing 1 and a loudspeaker structure 3, wherein the loudspeaker structure 3 is installed below a loudspeaker opening 2 on the mobile phone housing 1, and is characterized in that the loudspeaker structure 3 comprises a bevel support plate 5, a sound rebound plate 8, a contact sliding plate 9 and a spring 15, the bevel support plate 5 is rotatably connected to the back of the mobile phone housing 1 through a rotating shaft 4, the bevel support plate 5 is divided into an upper plate part 5-1 and a lower plate part 5-2, the lower end surface of the lower plate part 5-2 is inwards sunk to form a plate collecting space 6, two rectangular sliding grooves 13 are formed in the bottom surface of the plate collecting space 6, an upper cover plate 7 is arranged at the top end of the plate collecting space 6, the upper cover plate 7 is slidably connected with the lower plate part 5-2, a rectangular gap 16 can be reserved on the right side of the plate collecting space 6 after the upper cover plate 7 is covered, and the bevel support plate 5 is provided with an arc part 5-3 at the rectangular gap 16;
the two sides in the upper plate part 5-1 and the lower plate part 5-2 of the bevel support plate 5 are provided with spring mounting grooves 14, springs 15 are arranged in the spring mounting grooves 14, the contact sliding plate 9 is fixedly connected with the connection movable plate 12 through connection protrusions 12-1, the connection protrusions 12-1 are positioned in rectangular sliding grooves 13 and are in sliding connection with the rectangular sliding grooves, two ends of the connection movable plate 12 are fixedly connected with movable connecting rods 10, the front ends of the movable connecting rods 10 are fixedly connected with connecting shafts 10-1, the rear ends of the movable connecting rods 10 are hinged with movable connecting pieces 11, the connecting shafts 10-1 are positioned in the spring mounting grooves 14 and are in sliding connection with the spring mounting grooves, the connecting shafts 10-1 are connected with springs 15, and the movable connecting pieces 11 are hinged with sound rebound plates 8. Through setting up the public address structure 3 that can shrink and stretch out, stretch out during the use, can rebound the sound to user's face, let the user hear bigger sound, shrink when not using, can not hinder and influence the cell-phone and use.
The back of the mobile phone shell 1 is provided with a camera opening 1-1, and the bottom is provided with a charging port 1-2 and a loudspeaker opening 2. The sound amplifying structure 3 can extend and store, and when extending, the sound emitted from the loudspeaker opening 2 can be concentrated and bounced towards the face of the user, so that the effect of amplifying sound is achieved.
The contact sliding plate 9 is slidably connected to the lower plate portion 5-2, and the movable connecting rod 10 and the connecting movable plate 12 are slidably connected to the bottom surface of the plate receiving space 6. The contact slide plate 9, the movable link 10, and the connection movable plate 12 can all slide smoothly.
The lower terminal surface of sound anti-spring plate 8 is the inclined plane, and the up end is the arc surface, and the bottom of sound anti-spring plate 8 is equipped with recess 8-1, fixedly connected with connecting axle 8-2 in the recess 8-1, connecting axle 8-2 rotates with swing joint 11 to be connected, rectangular space 16's width is greater than sound anti-spring plate 8 thickness. Ensuring that the sound rebound board 8 is at a fixed inclination when extended, and collecting the sound emitted by the speaker opening 2 to the ear of the user.
The spring 15 is a compression spring, the spring mounting groove 14 is arranged in the lower plate part 5-2, the upper end of the spring mounting groove extends into the upper plate part 5-1, the length of the spring mounting groove 14 is longer than that of the sound rebound plate 8, and the spring mounting groove 14 is collinear with the movable connecting rod 10. The movable connecting piece 11 can move at a certain angle along with the sound rebound board 8, and the movable connecting rod 10 is always in a stable state of horizontal movement, so that the phenomenon of unsmooth sliding is avoided;
two sides of the contact sliding plate 9 extend outwards to form two side parts 9-1, the two side parts 9-1 are fixedly connected with the connecting movable plate 12 through connecting protrusions 12-1, the inner end face of the contact sliding plate 9 is a smooth face, and straight knurling is arranged on the outer end face. Friction is increased, and finger contact is more stable.
Specific embodiments and principles:
as shown in fig. 1, the components of the amplified mobile phone include a mobile phone case 1 and an amplifying structure 3. The mobile phone is characterized in that a camera opening 1-1 is formed in the back of the mobile phone shell 1, a charging port 1-2 and a loudspeaker opening 2 are formed in the bottom of the mobile phone shell, the sound amplifying structure 3 is located below the loudspeaker opening 2, the sound amplifying structure 3 can extend and store, and sound transmitted from the loudspeaker opening 2 can be concentrated to rebound towards the face of a user when extending, so that the sound amplifying effect is achieved.
As shown in fig. 2 and 3, the corner support plate 5 is connected to the back surface of the mobile phone case 1 through a rotation shaft 4, so that the corner support plate 5 can rotate around the rotation shaft 4 on the back surface of the mobile phone case. The corner support plate 5 may include an upper plate portion 5-1 and a lower plate portion 5-2. When the mobile phone is in a sound amplifying state, the angle folding supporting plate 5 is rotated, the sound rebound plate 8 extends out, and the sound rebound plate 8 can rebound the sound to the face of a user perpendicular to the screen of the mobile phone.
As shown in the figure, the upper surface of the inner side of the lower plate part 5-2 of the angle folding support plate 5 is recessed downwards to form a plate collecting space 6, a rectangular chute 13 is formed at the bottom side of the plate collecting space, an upper cover plate 7 is arranged at the upper side of the plate collecting space, a rectangular gap 16 is reserved on the right side of the plate collecting space 6 after the upper cover plate 7 is covered, the sound rebound plate 8 can slide out of the rectangular gap 16, and an arc part 5-3 which is convenient for the sound rebound plate 8 to slide out is arranged at the position of the tail end of the angle folding support plate 5, which is positioned at the rectangular gap 16. Two sections of spring mounting grooves 14 are arranged in the bevel supporting plate 5 and are used for placing springs 15 and the tail ends of the movable connecting rods 10. The spring mounting groove 14 is co-linear with the movable connecting rod 10 to ensure that the elastic force of the spring 15 is transmitted to the movable connecting rod 10, and the elastic force of the spring 15 is transmitted through the connecting cylinder 10-1 at the top end of the movable connecting rod 10.
Fig. 6 is an internal structure of the board collecting space 6, the internal transmission is mainly completed by a movable connecting rod 10 and a movable connecting piece 11, the top end of the movable connecting rod 10 is hinged with the sound rebound board 8 through the movable connecting piece 11, two groups of movable connecting rod 10 and movable connecting piece 11 are arranged on two sides of the sound rebound board, and the bottom end of the movable connecting rod 10 is propped against the spring 15 through a connecting cylinder 10-1 with the radius slightly larger than that of the spring 15. The sound rebound board 8 is hinged with the sound rebound board through a connecting shaft 8-2; the movable connecting rods 10 can horizontally slide, and a connecting movable plate 12 is arranged between the two movable connecting rods 10 to ensure that the two movable connecting rods 10 move consistently and transmit the thrust contacting the sliding plate 9; the connecting protrusion 12-1, which is connected with the movable plate 12 and extends outwards from the rectangular chute 13, is connected with the contact sliding plate 9, so that the contact sliding plate 9, the movable connecting plate 12 and the movable connecting rod 10 horizontally move along the rectangular chute 13. The movable connecting piece 11 can move along with the sound rebound board 8 at a certain angle, and the movable connecting rod 10 is always in a stable state of horizontal movement, so that the phenomenon of unsmooth sliding is avoided;
as shown in fig. 6 to 10, the connecting cylinder 10-1 is used for transmitting the elastic force of the spring 15 to the movable connecting rod 10, the contact sliding plate 9 is installed at the outer side of the carriage lower plate part 5-2, two sides of the contact sliding plate extend out to two side parts 9-1, and the two side parts 9-1 are connected with the movable connecting plate 12 through the connecting protrusions 12-1. The outside of the contact sliding plate 9 is provided with straight knurling, so that friction force is increased, the inside is smooth, and smooth sliding is ensured.
Fig. 11 is a cross-sectional view of the sound amplifying structure 3 when extended, pushing the contact sliding plate 9 upwards when contracted, driving the connecting movable plate 12 to move upwards through the connecting protrusion 12-1, thereby driving the movable connecting rod 10 and the movable connecting piece 11 to slide inwards, the sound rebound plate 8 slides into the receiving plate space 6 from the circular arc part 5-3 through the rectangular gap 16, the spring 15 is compressed at this time, after the sound rebound plate 8 is completely received, the upward pushing force gives the angle folding support plate 5, so that the angle folding support plate 5 rotates to the back of the mobile phone shell 1 around the rotating shaft 4, and at this time is in a contracted state. When the lower plate part 5-2 of the angle-folding support plate 5 rotates to the rectangular gap 16 to be separated from the back of the mobile phone shell, the spring 15 releases elastic potential energy, the elastic potential energy is transmitted to the sound rebound plate 8 through the connecting cylinder 10-1, the movable connecting rod 10 and the movable connecting piece 11, the sound rebound plate 8 slides out from the arc part 5-3 through the rectangular gap 16 and is kept fixed at a certain angle, and the mobile phone is in a use state at the moment. When the sound is not needed to be amplified, the sound rebound board 8 is retracted by pulling the contact sliding board upwards, and then the angle folding supporting board 5 is driven to rotate around the rotating shaft, so that the whole sound amplifying structure is rotated to the back of the mobile phone shell, and the loudspeaker opening of the mobile phone emits sound in an original mode.
As shown in fig. 12, the bottom of the sound reflecting plate 8 is inclined, so that a fixed inclination angle can be ensured when the sound reflecting plate extends out, and the sound emitted by the speaker opening 2 is collected at the ear of a user.
Based on the above, the invention has simple structure and flexible use, and can rebound sound to the face of the user by arranging the telescopic and telescopic sound amplifying structure, so that the user can hear larger sound, and the telescopic sound can not influence the use of the mobile phone when not in use.
It will be appreciated by those skilled in the art that the present invention can be carried out in other embodiments without departing from the spirit or essential characteristics thereof. Accordingly, the above disclosed embodiments are illustrative in all respects, and not exclusive. All changes that come within the scope of the invention or equivalents thereto are intended to be embraced therein.
Claims (3)
1. The utility model provides a public address cell-phone shell, includes cell-phone shell (1) and public address structure (3), public address structure (3) install in the below of cell-phone shell (1) upper speaker opening (2), a serial communication port, public address structure (3) include dog-ear layer board (5), sound rebound board (8), contact sliding plate (9) and spring (15), dog-ear layer board (5) are rotated through rotation axis (4) and are connected in the back of cell-phone shell (1), and dog-ear layer board (5) divide into upper plate portion (5-1) and lower plate portion (5-2), the lower terminal surface of lower plate portion (5-2) inwards falls into and receives board space (6), the bottom surface of receiving board space (6) is equipped with twice rectangle spout (13), and the top of receiving board space (6) is equipped with upper cover plate (7), upper cover plate (7) and lower plate portion (5-2) sliding connection, and upper cover plate (7) can leave a rectangle space (16) on the right side of receiving board space (6), rectangle layer board (5-16) are equipped with arc department in receiving board space (5-3).
The two sides in the upper plate part (5-1) and the lower plate part (5-2) of the bevel support plate (5) are provided with spring mounting grooves (14), springs (15) are arranged in the spring mounting grooves (14), the contact sliding plate (9) is fixedly connected with the connection movable plate (12) through connection protrusions (12-1), the connection protrusions (12-1) are positioned in the rectangular sliding grooves (13) and are in sliding connection with the rectangular sliding grooves, two ends of the connection movable plate (12) are fixedly connected with movable connecting rods (10), the front ends of the movable connecting rods (10) are fixedly connected with connecting shafts (10-1), the rear ends of the movable connecting rods (10) are hinged with movable connecting pieces (11), the connecting shafts (10-1) are positioned in the spring mounting grooves (14) and are in sliding connection with the spring mounting grooves, the connecting shafts (10-1) are connected with the springs (15), and the movable connecting pieces (11) are also hinged with the sound rebound plate (8);
the mobile phone is characterized in that a camera opening (1-1) is formed in the back face of the mobile phone shell (1), a charging port (1-2) and a loudspeaker opening (2) are formed in the bottom of the mobile phone shell, the contact sliding plate (9) is connected to the lower plate portion (5-2) in a sliding mode, the movable connecting rod (10) and the connecting movable plate (12) are connected to the bottom face of the plate collecting space (6) in a sliding mode, the lower end face of the sound rebound plate (8) is an inclined face, the upper end face of the sound rebound plate (8) is an arc face, a groove (8-1) is formed in the bottom of the sound rebound plate (8), a connecting shaft (8-2) is fixedly connected to the groove (8-1) in a connecting mode, the connecting shaft (8-2) is connected with the movable connecting piece (11) in a rotating mode, and the width of the rectangular gap (16) is larger than the thickness of the sound rebound plate (8).
2. A loudspeaker housing according to claim 1, wherein: the spring (15) is a compression spring, the spring mounting groove (14) is arranged in the lower plate part (5-2), the upper end of the spring mounting groove extends into the upper plate part (5-1), the length of the spring mounting groove (14) is larger than that of the sound rebound plate (8), and the spring mounting groove (14) is collinear with the movable connecting rod (10).
3. A loudspeaker housing according to claim 1, wherein: two sides of the contact sliding plate (9) extend outwards to form two side parts (9-1), the two side parts (9-1) are fixedly connected with the connecting movable plate (12) through connecting protrusions (12-1), the inner end surface of the contact sliding plate (9) is a smooth surface, and straight knurling is arranged on the outer end surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010134704.3A CN111225098B (en) | 2020-03-02 | 2020-03-02 | Public address cell-phone shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010134704.3A CN111225098B (en) | 2020-03-02 | 2020-03-02 | Public address cell-phone shell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111225098A CN111225098A (en) | 2020-06-02 |
| CN111225098B true CN111225098B (en) | 2023-05-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010134704.3A Active CN111225098B (en) | 2020-03-02 | 2020-03-02 | Public address cell-phone shell |
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| CN (1) | CN111225098B (en) |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8014843B2 (en) * | 2008-08-14 | 2011-09-06 | Sony Ericsson Mobile Communications Ab | Mobile electronic device |
| US20130048413A1 (en) * | 2011-08-24 | 2013-02-28 | Next Future Llc | Audio enhancement system for a communication device |
| WO2014107702A1 (en) * | 2013-01-07 | 2014-07-10 | Nflukz, Llc | Cover or device with a sound concentrator |
| CN104580594A (en) * | 2014-12-30 | 2015-04-29 | 孙冬梅 | Mobile phone with sound amplification function and case thereof |
| CN104580593A (en) * | 2014-12-30 | 2015-04-29 | 孙冬梅 | Mobile phone case with sound amplification function and mobile phone combination |
| CN204316571U (en) * | 2014-12-30 | 2015-05-06 | 孙冬梅 | There is mobile phone and the containment vessel thereof of sound amplification function |
| CN205017379U (en) * | 2015-10-23 | 2016-02-03 | 广州市叽咕信息科技有限公司 | Public address cell -phone shell that prevents dust |
| CN107483683A (en) * | 2017-10-17 | 2017-12-15 | 梁北洪 | A kind of mobile phone shell that physically amplifies |
| CN208401959U (en) * | 2017-12-25 | 2019-01-18 | 武汉科技大学 | Mobile phone amplifies bracket |
| CN208299858U (en) * | 2018-04-25 | 2018-12-28 | 惠州海格科技股份有限公司 | A kind of mobile phone shell that physically amplifies |
| CN110557491B (en) * | 2018-05-30 | 2021-03-19 | 许荣郎 | Mobile phone loudspeaking sleeve structure |
| CN208675314U (en) * | 2018-08-20 | 2019-03-29 | 颜玉婵 | A kind of mobile phone shell with sound amplification function |
| CN108965539A (en) * | 2018-09-25 | 2018-12-07 | 王昊楠 | Enhancing user hears the device and method of mobile phone outgoing loudspeaker volume |
-
2020
- 2020-03-02 CN CN202010134704.3A patent/CN111225098B/en active Active
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