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CN109121030B - Intelligent display sound box and equipment - Google Patents

Intelligent display sound box and equipment Download PDF

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Publication number
CN109121030B
CN109121030B CN201811270482.7A CN201811270482A CN109121030B CN 109121030 B CN109121030 B CN 109121030B CN 201811270482 A CN201811270482 A CN 201811270482A CN 109121030 B CN109121030 B CN 109121030B
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CN
China
Prior art keywords
intelligent display
sound box
display sound
shell
intelligent
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Application number
CN201811270482.7A
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Chinese (zh)
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CN109121030A (en
Inventor
董学会
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Goertek Intelligent Technology Co Ltd
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Goertek Intelligent Technology Co Ltd
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Priority to CN201811270482.7A priority Critical patent/CN109121030B/en
Publication of CN109121030A publication Critical patent/CN109121030A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/02Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/028Casings; Cabinets ; Supports therefor; Mountings therein associated with devices performing functions other than acoustics, e.g. electric candles

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

The invention discloses an intelligent display sound box and equipment. The intelligent display device of the invention comprises an intelligent display sound box, and the intelligent display sound box comprises: a housing comprising an egg-shaped structure; a movable swinging piece is suspended in the center position inside the shell; and the annular electromagnetic component surrounding the swinging piece is arranged on the inner side wall of the shell, and the swinging piece is driven to swing by controlling the annular electromagnetic component to generate magnetic field force with set size and direction and/or set frequency, so that the sound box can generate movement expected by a user. The intelligent display sound box is novel in structure, the competitiveness of the intelligent display sound box can be improved, and the annular electromagnetic assembly is arranged in the intelligent display sound box, so that the swing piece is driven to move by controlling the annular electromagnetic assembly to generate magnetic field force with set size direction and/or set frequency, the intelligent display sound box is enabled to generate movement expected by a user, and the directional adjustment of the display screen of the intelligent display sound box is realized.

Description

Intelligent display sound box and equipment
Technical Field
The invention relates to an intelligent display sound box and equipment.
Background
Along with the improvement of living standard, smart home is increasingly appeared in daily life of people, and smart multimedia devices (such as smart speakers) are popular as one of the products. Most intelligent multimedia devices in the market are provided with display screens, and the display screens not only can be used for displaying related information, but also can be used for realizing intelligent multimedia control through touch control display screens.
At present, the display screen of intelligent multimedia equipment generally faces fixedly, and can not be adjusted in real time to perform directional display so as to aim at the direction of a person, so that the user needs to move to the opposite side of the display screen or manually move the equipment when watching the display screen or performing touch operation, and the human-computer interaction effect is poor, so that the user experience is influenced.
Disclosure of Invention
The invention provides an intelligent display sound box and intelligent display equipment, which are used for solving the problem that the display screen of the prior art is fixed in orientation.
One aspect of the present invention provides an intelligent display speaker, including: a housing comprising an egg-shaped structure; a movable swinging piece is suspended in the center position inside the shell; and the annular electromagnetic component surrounding the swinging piece is arranged on the inner side wall of the shell, and the swinging piece is driven to swing by controlling the annular electromagnetic component to generate magnetic field force with set size and direction and/or set frequency, so that the sound box can generate movement expected by a user.
Preferably, the housing comprises: the upper cover is fixed at the upper end of the lower shell.
Preferably, the intelligent display sound box further comprises a fixed bracket arranged on the inner side wall of the upper part of the lower shell, and one side of the fixed bracket, which faces to the bottom of the lower shell, is provided with a spherical hinge joint; one end of the swinging piece comprises a spherical hinge hole hinged with the spherical hinge joint, the other end of the swinging piece comprises a swinging load, and a connecting rod which is designed together is arranged between the spherical hinge hole and the swinging load.
Preferably, the oscillating load comprises an electromagnetically attracted sphere.
Preferably, the electromagnetic assembly comprises an annular array of a plurality of solenoids, the annular array of solenoids being secured to an inner sidewall of the bottom of the lower housing.
Preferably, the intelligent display sound box further comprises a counterweight which is arranged at the center of the bottom of the lower shell and used for reducing the gravity center of the sound box.
Preferably, the intelligent display sound box further comprises a curved display screen arranged on the outer side of the upper portion of the lower shell.
Preferably, the intelligent display sound box further comprises a camera module arranged outside the upper cover, the camera module comprises a spherical camera array, and the spherical camera array comprises a plurality of cameras which are spherically distributed.
Preferably, the intelligent display sound box further comprises a PCB (printed circuit board) arranged on the inner side of the upper cover, a microphone array is arranged on the PCB, and an acoustic outlet is formed in the position of the upper cover relative to each microphone in the microphone array.
According to the invention, the bottom of the sound box shell is of an egg-shaped structure, so that the bottom of the sound box can be always in contact with the contact surface, a sound box with novel structure is formed, the competitiveness of the intelligent display sound box is improved, and as the annular electromagnetic assembly is arranged in the intelligent display sound box, the swinging piece is driven to swing by controlling the annular electromagnetic assembly to generate magnetic field force with set size and direction and/or set frequency, so that the intelligent display sound box can generate expected motion of a user, and the directional adjustment of the display direction of the intelligent display sound box is realized.
Another aspect of the present invention provides an intelligent display device, comprising: the intelligent display sound box.
According to the invention, the bottom of the shell of the intelligent display sound box included in the intelligent display device is of an egg-shaped structure, the bottom of the intelligent display sound box can be always in contact with the contact surface, and the annular electromagnetic component arranged in the intelligent display sound box is controlled to generate magnetic field force with set size and direction and/or set frequency to drive the swinging piece to swing, so that the intelligent display sound box generates expected motion of a user, and the directional adjustment of the display direction of the intelligent display device is realized.
Drawings
FIG. 1 is an exploded view of an intelligent display speaker according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of an intelligent display speaker according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of an intelligent display speaker according to an embodiment of the present invention;
FIG. 4 is a top view corresponding to FIG. 3, illustrating an embodiment of the present invention;
fig. 5 is a perspective view showing the swing of the swing member according to the embodiment of the present invention;
FIG. 6 is a top view corresponding to FIG. 5, illustrating an embodiment of the present invention;
FIG. 7 is a schematic diagram of a camera module according to an embodiment of the present invention;
Fig. 8 is a top view of a camera module according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings.
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the invention. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present invention.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The words "a", "an", and "the" as used herein are also intended to include the meaning of "a plurality", etc., unless the context clearly indicates otherwise. Furthermore, the terms "comprises," "comprising," and the like, as used herein, specify the presence of stated features, steps, operations, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, or components.
All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art unless otherwise defined. It should be noted that the terms used herein should be construed to have meanings consistent with the context of the present specification and should not be construed in an idealized or overly formal manner.
The invention provides an intelligent display sound box.
Fig. 1 is an exploded view of an intelligent display speaker according to an embodiment of the present invention, fig. 2 is a schematic perspective view of the intelligent display speaker according to an embodiment of the present invention, fig. 3 is a cross-sectional view of the intelligent display speaker according to an embodiment of the present invention, fig. 4 is a plan view corresponding to fig. 3 according to an embodiment of the present invention, and as shown in fig. 1 to 4, the speaker according to the present embodiment includes:
The intelligent display sound box comprises shell bodies (2, 9) of egg-shaped structures, movable swinging parts 5 are suspended in the center position inside the shell bodies, annular electromagnetic assemblies 6 surrounding the swinging parts are arranged on the inner side walls of the shell bodies, the swinging parts 5 are driven to swing by controlling the annular electromagnetic assemblies to generate magnetic field force with set size and direction and/or set frequency, the intelligent display sound box is enabled to generate movement expected by a user, for example, the swinging or rotation of the swinging parts is attracted or repelled, the display screen of the intelligent display sound box is adjusted to change in the pitching direction and/or the horizontal direction, and the display direction is adjusted in two degrees of freedom, so that the directional adjustment of the display screen is achieved.
According to the embodiment, the bottom of the sound box shell is set to be of an egg-shaped structure, the bottom of the sound box can be always in contact with the contact surface, the sound box with the novel structure is formed, the competitiveness of the intelligent display sound box is improved, the annular electromagnetic assembly is arranged inside the intelligent display sound box, the swing piece is driven to swing through controlling the annular electromagnetic assembly to generate magnetic field force with set size and direction and/or set frequency, the intelligent display sound box is enabled to generate expected motion of a user, and the directional adjustment of the display direction of the intelligent display sound box is achieved.
As shown in fig. 1-2, the housing of the present embodiment includes a lower shell 9 and an upper cover 2, the bottom of the lower shell 9 is in an egg-shaped structure, i.e., a semi-spherical-like shape as shown in fig. 2, the upper portion of the lower shell 9 is in a cylindrical structure, and the upper cover 2 can be fixed to the upper end of the lower shell 9 by means of gluing or screw fixation.
Referring to fig. 3, the intelligent display sound box of the embodiment further includes a fixing bracket 4 disposed on an inner sidewall of an upper portion of the lower case, a spherical hinge 41 is disposed on a side of the fixing bracket 4 facing the bottom of the lower case, one end of the swinging member 5 includes a spherical hinge hole hinged with the spherical hinge 41, the other end includes a swinging load 51, and a connecting rod designed together is disposed between the spherical hinge hole and the swinging load 51; obviously, the fixed support faces to one side of the bottom of the lower shell and the ball hinge hole, and one end of the swinging piece comprises a ball hinge joint hinged with the ball hinge hole. The swinging load 51 includes an electromagnetically attracted ball, and the swinging load 51 is, for example, a magnetic ball or an iron ball.
The electromagnetic assembly of this embodiment includes a ring array that a plurality of solenoids constitute, and the ring array of a plurality of solenoids is fixed in the inside wall of inferior valve bottom, referring to fig. 4, in this embodiment a plurality of solenoids are radial to the inside wall direction of inferior valve relative intelligent display audio amplifier central axis, in order to guarantee accurate control swinging member and produce the motion that the user expects, the axle array that a plurality of solenoids of this embodiment present is the ring axle array structure of evenly encircling on the inside wall of inferior valve bottom, and the quantity of solenoids is the more, and control accuracy is the higher, and the quantity of solenoids can be set according to the precision requirement.
As shown in fig. 3, the intelligent display sound box of the embodiment further comprises a counterweight 7 arranged at the center of the bottom of the lower shell and used for reducing the gravity center of the sound box, so that the intelligent display sound box is guaranteed to produce a tumbler effect.
In this embodiment, the resultant force of the centrifugal force corresponding to the central axis of the intelligent display sound box and the centrifugal force generated by the mass of the intelligent display sound box is zero, so as to form a balance system, so that the swinging member is in a balance state in a natural state.
The intelligent display sound box of this embodiment further includes a curved display screen 8 disposed on the outer side of the upper portion of the lower shell, a camera module 1 disposed on the outer side of the upper cover, and a PCB 3 disposed on the inner side of the upper cover, as shown in fig. 1, where the curved display screen may cover a portion of the upper portion of the lower shell, for example, the curved display screen may be curved by 180 °. The camera module of this embodiment includes a spherical camera array, and referring to fig. 7-8, the spherical camera array includes a plurality of cameras distributed in a spherical shape, and the panoramic image is shot by using the spherical camera array to determine the position of the user. Referring to fig. 2, a microphone array is disposed on the pcb 3, and an acoustic outlet 21 is disposed at a position of the upper cover 2 opposite to each microphone 31 in the microphone array, so that each microphone in the microphone array picks up user's voice, and the number of microphones is not limited in this embodiment.
Referring to fig. 6-7, the working principle of the intelligent display sound box of the present embodiment is:
The panoramic image is shot by utilizing the spherical camera array, the panoramic image is analyzed to determine the position of a user, the annular electromagnetic assembly is controlled to generate magnetic field force with set size and direction and/or set frequency, the swinging piece is driven to move, the intelligent display sound box rotates on the contact surface under the action of the swinging load of the swinging piece, the orientation of the curved surface display screen of the intelligent display sound box changes along with the swinging load, when the curved surface display screen faces the position of the user, the camera in the spherical camera array facing one side of the user is utilized to shoot, the shot image is analyzed to determine the compensation angle of the curved surface display screen in the vertical direction and the horizontal direction, the annular electromagnetic assembly is further controlled to generate magnetic field force according to the compensation angle, the swinging piece is driven to swing, the intelligent display sound box changes relative to the contact surface under the action of the swinging load of the swinging piece, and as shown in fig. 2, the compensation angles of the curved surface display screen in the vertical direction and the horizontal direction are zero, and the purpose that the curved surface display screen is completely aligned with both eyes of the user is achieved.
The directional display of the intelligent display loudspeaker box curved surface display screen is controlled by the electromagnetic assembly, magnetic field forces with corresponding size directions or corresponding frequencies are generated by controlling different solenoids, the swinging piece is driven to swing, and the loudspeaker box is adjusted relative to two degrees of freedom of a contact surface, namely a vertical angle (corresponding to the pitching direction of the loudspeaker box) and a horizontal angle (corresponding to the rotating direction of the loudspeaker box), so that the purpose of accurately controlling the directional display of the display screen is achieved, and human-computer interaction is better achieved.
The intelligent display loudspeaker box of the embodiment has at least the following advantages:
1. the intelligent display sound box of the embodiment has novel appearance and can improve market competitiveness;
2. According to the embodiment, the electromagnetic assembly and the swinging piece are used as core components for directional adjustment of the curved display screen of the intelligent display sound box, so that the intelligent display sound box can be adjusted relative to the contact surface in two degrees of freedom, the curved display screen of the intelligent display sound box can be kept vertically reversely in real time, interaction is more friendly, and user experience is enhanced.
The invention further provides intelligent display equipment.
The intelligent display device of the present embodiment includes the intelligent display speaker described above.
According to the embodiment, the bottom of the shell of the intelligent display sound box included by the intelligent display device is of an egg-shaped structure, the bottom of the intelligent display sound box can always keep contact with the contact surface, the annular electromagnetic component arranged inside the intelligent display sound box is controlled to generate magnetic field force with set size and direction and/or set frequency, the swinging piece is driven to swing, the intelligent display sound box is enabled to generate expected motion of a user, and the directional adjustment of the display direction of the intelligent display device is achieved.
The foregoing is merely a specific embodiment of the invention and other modifications and variations can be made by those skilled in the art in light of the above teachings. It is to be understood by persons skilled in the art that the foregoing detailed description is provided for the purpose of illustrating the invention more fully, and that the scope of the invention is defined by the appended claims.

Claims (8)

1. An intelligent display sound box, comprising:
The shell comprises a lower shell, wherein the bottom of the lower shell is of an egg-shaped structure;
A movable swinging piece is suspended in the center position inside the shell; and
The intelligent display sound box further comprises a fixed support arranged on the inner side wall of the upper part of the lower shell, and a spherical hinge joint is arranged on one side of the fixed support, which faces the bottom of the lower shell; one end of the swinging piece comprises a spherical hinge hole hinged with the spherical hinge joint, the other end of the swinging piece comprises a swinging load, and a connecting rod which is designed together is arranged between the spherical hinge hole and the swinging load;
The annular electromagnetic assembly is arranged on the inner side wall of the shell and surrounds the swinging piece, the electromagnetic assembly comprises an annular array formed by a plurality of solenoids, the annular array formed by the solenoids is fixed on the inner side wall of the bottom of the lower shell, and the central axis of the intelligent display sound box is radial to radiate towards the direction of the inner side wall of the lower shell, the swinging piece is driven to swing by controlling the annular electromagnetic assembly to generate magnetic field force with set size and direction and/or set frequency, so that the intelligent display sound box can generate movement expected by a user, and further the directional adjustment of the display direction of the intelligent display sound box can be realized.
2. The intelligent display speaker of claim 1, wherein the upper portion of the lower housing is of a cylindrical structure, and the housing further comprises an upper cover fixed to the upper end of the lower housing.
3. The intelligent display speaker of claim 1, wherein the oscillating load comprises an electromagnetically attracted sphere.
4. The intelligent display speaker of claim 2, further comprising a weight disposed at a center of the bottom of the lower case for lowering a center of gravity of the speaker.
5. The intelligent display speaker of claim 2, further comprising a curved display screen disposed outside the upper portion of the lower housing.
6. The intelligent display sound box according to claim 2, further comprising a camera module arranged outside the upper cover, wherein the camera module comprises a spherical camera array, and the spherical camera array comprises a plurality of cameras distributed in a spherical shape.
7. The intelligent display sound box according to claim 2, further comprising a PCB board disposed on the inner side of the upper cover, wherein a microphone array is disposed on the PCB board, and an acoustic outlet is disposed at a position of the upper cover corresponding to each microphone in the microphone array.
8. A smart display device comprising a smart display speaker as claimed in any one of claims 1 to 7.
CN201811270482.7A 2018-10-29 2018-10-29 Intelligent display sound box and equipment Active CN109121030B (en)

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Application Number Priority Date Filing Date Title
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CN109121030B true CN109121030B (en) 2024-05-10

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113556649B (en) * 2020-04-23 2023-08-04 百度在线网络技术(北京)有限公司 Broadcasting control method and device of intelligent sound box
CN113747303B (en) * 2021-09-06 2023-11-10 上海科技大学 Directional sound beam whisper interaction system, control method, control terminal and medium

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000253333A (en) * 1999-02-26 2000-09-14 Canon Inc Display device and its control method
CN102457593A (en) * 2010-10-29 2012-05-16 展志电子科技(南通)有限公司 Call reminding mobile phone
CN104679961A (en) * 2015-03-17 2015-06-03 中国人民解放军国防科学技术大学 Electromagnetic docking control method and device
CN104977992A (en) * 2015-07-11 2015-10-14 鲁杨 Tablet computer with bracket for teaching
CN105292289A (en) * 2015-11-03 2016-02-03 北京邮电大学 Novel spherical robot capable of being carried with two different visual cameras
CN105595677A (en) * 2015-12-31 2016-05-25 无锡职业技术学院 Crib with electro-magnetic driving magnetofluid wabble mechanism
CN107249159A (en) * 2017-08-15 2017-10-13 歌尔科技有限公司 A kind of intelligent sound box
DE102016006308A1 (en) * 2016-04-18 2017-10-19 Kastriot Merlaku Camera of any kind
CN206597270U (en) * 2017-01-23 2017-10-31 白宝音套 Psychological training platform and its simulated training device
KR101809983B1 (en) * 2016-11-08 2017-12-18 (주) 씨앤피 Cradle with angle adjustment function through movement of the center of gravity
CN208940146U (en) * 2018-10-29 2019-06-04 歌尔智能科技有限公司 A kind of intelligent display speaker, equipment

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000253333A (en) * 1999-02-26 2000-09-14 Canon Inc Display device and its control method
CN102457593A (en) * 2010-10-29 2012-05-16 展志电子科技(南通)有限公司 Call reminding mobile phone
CN104679961A (en) * 2015-03-17 2015-06-03 中国人民解放军国防科学技术大学 Electromagnetic docking control method and device
CN104977992A (en) * 2015-07-11 2015-10-14 鲁杨 Tablet computer with bracket for teaching
CN105292289A (en) * 2015-11-03 2016-02-03 北京邮电大学 Novel spherical robot capable of being carried with two different visual cameras
CN105595677A (en) * 2015-12-31 2016-05-25 无锡职业技术学院 Crib with electro-magnetic driving magnetofluid wabble mechanism
DE102016006308A1 (en) * 2016-04-18 2017-10-19 Kastriot Merlaku Camera of any kind
KR101809983B1 (en) * 2016-11-08 2017-12-18 (주) 씨앤피 Cradle with angle adjustment function through movement of the center of gravity
CN206597270U (en) * 2017-01-23 2017-10-31 白宝音套 Psychological training platform and its simulated training device
CN107249159A (en) * 2017-08-15 2017-10-13 歌尔科技有限公司 A kind of intelligent sound box
CN208940146U (en) * 2018-10-29 2019-06-04 歌尔智能科技有限公司 A kind of intelligent display speaker, equipment

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