Intelligent sound box

Abstract

The utility model discloses an intelligent sound box, which is used for solving the problem that a sound post assembly of an existing intelligent sound box is easy to generate noise in a reciprocating motion process. The intelligent sound box of the utility model comprises a sound box housing, a sound post assembly and a driving assembly. The sound box shell is internally provided with the driving assembly, and the driving assembly is connected with the sound post assembly to drive the sound post assembly to reciprocate relative to the sound box shell along a first direction; and the driving assembly is connected with a noise reduction assembly.

Description

Technical Field

[0001] This utility model relates to the field of speaker design technology, and in particular to a smart speaker. Background Technology

[0002] Smart speakers, as a common audio player, are widely used in our lives.

[0003] To expand the sound field, existing smart speakers typically incorporate speaker column assemblies. These assemblies reciprocate relative to the speaker housing under the drive of a driver assembly, extending out of or retracting into the housing. However, these speaker column assemblies are prone to generating noise during this reciprocating motion. This noise is mostly caused by significant friction between the lead screw and other components within the driver assembly.

[0004] Therefore, finding a technical solution that can solve the above-mentioned technical problems has become an important research topic for those skilled in the art. Utility Model Content

[0005] This utility model discloses a smart speaker to solve the problem that the sound column assembly of existing smart speakers is prone to generating noise during reciprocating movement.

[0006] The smart speaker provided by this utility model is characterized by comprising a speaker shell, a sound column assembly, and a driving assembly;

[0007] The drive assembly is installed inside the speaker housing, and the drive assembly is connected to the sound column assembly to drive the sound column assembly to reciprocate relative to the speaker housing along a first direction.

[0008] The driving component is connected to a noise reduction component.

[0009] Optionally, the sound column assembly includes a sound column body and a sound column housing;

[0010] The sound column body is movably fitted inside the sound column shell;

[0011] The driving component is connected to the sound column housing and the sound column body, and when the driving component drives the sound column housing to reciprocate relative to the speaker housing along the first direction, the sound column body is driven to reciprocate relative to the sound column housing in the same direction.

[0012] Optionally, the drive assembly includes a motor, an inner lead screw, an outer lead screw, and a connecting part;

[0013] The motor is installed inside the speaker housing and connected to the internal lead screw. The motor is used to drive the internal lead screw to rotate around a first direction. The bottom of the speaker housing is provided with a first threaded part, which is threaded to the internal lead screw. The connecting part is rotatably installed at the bottom of the speaker housing. The external lead screw is movably fitted outside the internal lead screw and connected to the internal lead screw through the connecting part.

[0014] When the inner screw is driven to rotate, the connecting part drives the outer screw to rotate synchronously, and at the same time, the outer screw reciprocates relative to the inner screw.

[0015] The bottom of the sound column body is connected to a second threaded part, which is threaded to the external lead screw.

[0016] Optionally, the noise reduction component includes a ball bearing;

[0017] The outer ring of the ball bearing is connected to the bottom of the sound column housing, and the inner ring of the ball bearing is connected to the connecting part.

[0018] Optionally, the noise reduction component further includes a first sliding sleeve, which is fitted onto the inner lead screw;

[0019] The outer wall of the first sliding sleeve is in contact with the inner wall of the outer lead screw.

[0020] Optionally, a hollow guide tube is installed inside the sound column body;

[0021] The guide cylinder is movably fitted onto the external lead screw.

[0022] Optionally, the noise reduction component further includes a second sliding sleeve, which is fitted onto the outer lead screw;

[0023] The outer wall of the second sliding sleeve is in contact with the inner wall of the guide cylinder.

[0024] Optionally, the first sliding sleeve and the second sliding sleeve are graphite copper sleeves.

[0025] Optionally, the interior of the sound column body is equipped with a plurality of support members spaced apart along a first direction, and the support members abut against the outer wall of the guide cylinder.

[0026] Optionally, the speaker column body is provided with a full-range speaker and / or a mid-range speaker and / or a high-frequency speaker;

[0027] A low-frequency speaker is installed inside the speaker enclosure.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] In the smart speaker of this embodiment, a noise reduction component is connected to the driving component used to drive the sound column assembly. Through the above design, the noise during the operation of the driving component can be effectively reduced. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 A schematic diagram of the structure of a smart speaker's speaker column assembly housed in the speaker shell, as provided by this utility model;

[0032] Figure 2 A schematic diagram of the structure of a smart speaker's speaker column assembly extending out of the speaker housing, provided by this utility model;

[0033] Figure 3 A schematic diagram of the connection between the speaker column assembly and the driver assembly of a smart speaker provided by this utility model;

[0034] Figure 4 A schematic diagram of the structure of a driver component for a smart speaker provided by this utility model;

[0035] Figure 5 A schematic diagram of the structure of the drive assembly of a smart speaker provided by this utility model when the inner lead screw is connected to the first sliding sleeve;

[0036] Figure 6 A schematic diagram of the connection part of a smart speaker provided by this utility model;

[0037] Figure 7 A schematic diagram of the structure of the guide tube of the speaker column body of a smart speaker provided by this utility model;

[0038] Figure 8 A partial cross-sectional structural diagram of the speaker column assembly of a smart speaker in its stowed state, provided by this utility model;

[0039] Figure 9 A schematic diagram of the structure of a smart speaker when the rolling bearing is connected to the drive assembly, as provided by this utility model;

[0040] Illustration: Speaker housing 1; Speaker column assembly 2; Speaker column housing 201; Speaker column body 202; Guide cylinder 2021; Support component 2022; Display screen 3; Drive assembly 4; Inner lead screw 401; Outer lead screw 402; First threaded part 403; Connecting part 404; Second threaded part 405; Ball bearing 5; First sliding sleeve 6; Second sliding sleeve 7. Detailed Implementation

[0041] This utility model discloses a smart speaker to solve the problem that the sound column assembly of existing smart speakers is prone to generating noise during reciprocating movement.

[0042] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] Please see Figures 1 to 9 The smart speaker provided in this embodiment of the utility model includes a speaker shell 1, a sound column assembly 2, and a drive assembly 4;

[0044] The drive assembly 4 is installed inside the speaker housing 1. The drive assembly 4 is connected to the sound column assembly 2 to drive the sound column assembly 2 to reciprocate relative to the speaker housing 1 along a first direction.

[0045] The drive component 4 is connected to a noise reduction component.

[0046] It should be noted that in this embodiment, the first direction mentioned above specifically refers to the vertical direction, that is, the speaker column assembly 22 can be driven to move back and forth relative to the speaker housing 1 in the vertical direction. When the speaker column assembly 22 is driven to move upward in the vertical direction, it can extend out of the speaker housing 1. When the speaker column assembly 22 is driven to move downward in the vertical direction, it can be stored inside the speaker housing 1.

[0047] In the smart speaker of this embodiment, a noise reduction component is connected to the driving component 4 used to drive the sound column component 2. Through the above design, the noise of the driving component 4 during operation can be effectively reduced.

[0048] Furthermore, the sound column assembly 2 in this embodiment includes a sound column body 202 and a sound column housing 201;

[0049] The sound column body 202 is movably fitted inside the sound column housing 201;

[0050] The drive assembly 4 is connected to the sound column housing 201 and the sound column body 202. When the drive assembly 4 drives the sound column housing 201 to reciprocate relative to the speaker housing 1 along the first direction, the sound column body 202 is driven to reciprocate relative to the sound column housing 201 in the same direction.

[0051] It should be noted that, through the above design, the sound column assembly 2 can achieve two-stage reciprocating movement, that is, while the sound column housing 201 is driven to reciprocate relative to the speaker housing 1, the sound column body 202 is driven to reciprocate relative to the sound column housing 201.

[0052] Furthermore, the drive assembly 4 in this embodiment includes a motor, an inner lead screw 401, an outer lead screw 402, and a connecting part 404;

[0053] The motor is installed inside the speaker housing 1 and connected to the inner lead screw 401. The motor is used to drive the inner lead screw to rotate around a first direction. The bottom of the speaker housing 201 is provided with a first threaded part 403, which is threaded to the inner lead screw 401. The connecting part 404 is rotatably installed on the bottom of the speaker housing 201. The outer lead screw 402 is movably fitted outside the inner lead screw 401 and connected to the inner lead screw 401 through the connecting part 404.

[0054] When the inner lead screw 401 is driven to rotate, the connecting part 404 drives the outer lead screw 402 to rotate synchronously. At the same time, the outer lead screw 402 reciprocates relative to the inner lead screw 401.

[0055] The bottom of the sound column body 202 is connected to a second threaded part 405, which is threaded to the external lead screw 402.

[0056] It should be noted that the specific working principle of the driver component 4 in this embodiment is as follows:

[0057] Taking the first direction as the vertical direction as an example, when the motor drives the inner screw 401 to rotate in the clockwise direction, the sound column housing 201 moves upward along the inner screw 401. Since the outer screw 402 is connected to the connecting part 404, the outer screw 402 moves upward synchronously with the sound column housing 201, and the outer screw 402 also rises relative to the inner screw 401. At the same time, when the inner screw 401 rotates, it drives the outer screw 402 to rotate synchronously through the connecting part 404. At this time, the sound column body 202 moves upward along the outer screw 402.

[0058] In this embodiment, the connecting part 404 is rotatably connected to the bottom of the sound column housing 201. One end of the connecting part is a circular mounting port, and the other end is an elliptical mounting port. The circular and elliptical mounting ports communicate to facilitate the fitting of the outer lead screw 402 onto the inner lead screw 401. The outer lead screw 402 is specifically a cylinder with a threaded structure on its outer wall, which is fixed to the circular mounting port. The inner lead screw 401 is specifically an elliptical cylinder with a threaded structure on its outer wall, which is movably inserted into the elliptical mounting port. With this design, when the inner lead screw 401 rotates, the connecting part 404 can drive the outer lead screw 402 to rotate synchronously, and the outer lead screw can reciprocate relative to the inner lead screw 401. In this embodiment, the first threaded part 403 and the second threaded part 405 have the same structure and are both metal parts with threaded holes.

[0059] Furthermore, the noise reduction component in this embodiment includes a ball bearing 5;

[0060] The outer ring of the ball bearing 5 is connected to the bottom of the sound column housing 201, and the inner ring of the ball bearing 5 is connected to the connecting part 404.

[0061] It should be noted that, through the above design, when the inner lead screw 401 rotates, the outer lead screw 402 and the connecting part 404 will rotate synchronously. Since the connecting part 404 needs to be set at the bottom of the sound column housing 201, this embodiment, through the design of the ball bearing 5, can prevent the connecting part 404 from rubbing against the relevant parts at the bottom of the sound column housing 201 during rotation, thereby achieving the effect of noise reduction.

[0062] Furthermore, the noise reduction component in this embodiment also includes a first sliding sleeve 6, which is fitted onto the inner lead screw 401;

[0063] The outer side wall of the first sliding sleeve 6 is in contact with the inner side wall of the outer lead screw 402.

[0064] It should be noted that, during the movement of the inner lead screw 401, the outer lead screw 402 will reciprocate relative to the inner lead screw 401. Through the above design, the friction generated when the inner lead screw 401 and the outer lead screw 402 move relative to each other can be reduced, thereby achieving the effect of noise reduction.

[0065] Furthermore, in this embodiment, a hollow guide cylinder 2021 is installed inside the sound column body 202;

[0066] The guide cylinder 2021 is movably fitted onto the external lead screw 402.

[0067] It should be noted that the external lead screw 402 is threadedly connected to the second threaded part 405 and inserted into the interior of the sound column body 202 through the second threaded part 405. In order to avoid the external lead screw 402 affecting the internal structure of the sound column body 202 during the movement, a guide cylinder 2021 is provided in the sound column body 202 and is movably fitted on the external lead screw 402. The guide cylinder 2021 also has a guiding function, which can effectively limit the external lead screw 402 to reciprocate only in the first direction.

[0068] Furthermore, the noise reduction component in this embodiment also includes a second sliding sleeve 7, which is fitted onto the external lead screw 402;

[0069] The outer wall of the second sliding sleeve 7 is in contact with the inner wall of the guide cylinder 2021.

[0070] It should be noted that, as the external lead screw 402 and the guide cylinder 2021 reciprocate relative to each other during the movement, the above design can reduce the friction generated when the external lead screw 402 and the guide cylinder 2021 move relative to each other, thereby achieving the effect of noise reduction.

[0071] Specifically, in this embodiment, the first sliding sleeve 6 and the second sliding sleeve 7 are preferably graphite copper sleeves.

[0072] It should be noted that the graphite copper bushing is made of high-purity graphite and high-strength copper alloy powder by hot pressing. It has the characteristics of self-lubrication. During the movement, it can automatically release graphite particles for lubrication, thereby effectively reducing friction between parts and thus reducing noise.

[0073] Furthermore, in this embodiment, the interior of the sound column body 202 is equipped with a plurality of support members 2022 spaced apart along a first direction, and the support members 2022 abut against the outer side wall of the guide cylinder 2021.

[0074] It should be noted that the aforementioned support member 2022 is specifically a plastic support ring that matches the structure of the guide cylinder 2021. The support member 2022 can provide support force to the guide cylinder 2021 when the guide cylinder 2021 moves relative to the external lead screw 402.

[0075] Furthermore, in this embodiment, the speaker column body 202 is provided with a full-range speaker and / or a mid-range speaker and / or a high-frequency speaker;

[0076] In this embodiment, a low-frequency speaker is installed inside the speaker housing 1.

[0077] It should be noted that the speakers in the sound column body 202 of this embodiment are arranged at an angle, which can further expand the sound field. Specific examples are as follows:

[0078] Opening from top to bottom: at least one speaker faces upwards and at least one speaker faces downwards for directional output; the above speakers can be full-range speakers.

[0079] Left and right opening: at least one speaker faces left and at least one speaker faces right, or they can be set relative to each other. The speakers mentioned above can be full-range speakers.

[0080] Overall opening: at least one speaker facing forward, at least one speaker facing the upper left and lower right, and at least one speaker facing the lower right and upper left;

[0081] In this embodiment, the sound column body 202 works in conjunction with the low-frequency speaker to output forward, so that the sound field in front is filled evenly.

[0082] Furthermore, the smart speaker in this embodiment also includes a display screen 3;

[0083] The top of the speaker housing 1 is provided with a storage slot for storing the display screen 3, and the storage slot is recessed into the interior of the speaker housing 1.

[0084] It should be noted that the smart speaker in this embodiment can be connected to the speaker housing 1 by means of hinge. When the user does not need to use the display screen 3, it can be rotated to the storage slot to store the display screen 3.

[0085] Furthermore, the speaker housing 1 in this embodiment is also provided with a microphone storage structure for storing the microphone. The microphone storage structure can be a receiving groove provided on the speaker housing 1, which is recessed into the interior of the speaker housing 1. The microphone is stored in the receiving groove. In addition, to facilitate the user to remove the microphone, a lifting drive can be provided in the receiving groove to drive the microphone to extend out of the receiving groove or store it in the receiving groove. Alternatively, an elastic pressing component can be installed in the receiving groove. The user can lock the microphone in the receiving groove by pressing it, and the user can release the microphone into an unlocked floating state by pressing it again so that the user can remove it. The above-mentioned elastic pressing component is prior art, and this embodiment will not describe it in detail.

[0086] Furthermore, the smart speaker in this embodiment also includes a control circuit board, which is installed inside the speaker housing 1. The speaker assembly, display screen 3, and lifting drive component inside the speaker are all electrically connected to the control circuit board. A communication module is also electrically connected to the control circuit board, and the microphone is wirelessly connected to the control circuit board through the communication module.

[0087] It should be noted that the microphone communicates with the control circuit board via a communication module, allowing the user's voice signal to be processed by the control circuit board and then played through the speaker.

[0088] In addition, in the speaker of this embodiment, when there are two or more microphones, the user can control the two or more microphones to rise and fall synchronously or individually, depending on the selection. The above process can be obtained by programming on the control circuit board, which can be implemented by those skilled in the art. This embodiment will not describe it in detail.

[0089] Furthermore, the display screen 3 in this embodiment can be opened electrically or manually. This embodiment does not impose any restrictions on this, and designers can design it according to actual needs. In addition, in this embodiment, the display screen 3 can be linked with the lifting drive component through the control circuit board. That is, when the display screen 3 is opened, the lifting drive component simultaneously drives the microphone to rise. The above method can also be implemented by those skilled in the art, and this embodiment does not describe the implementation method in detail.

[0090] Furthermore, the depth of the receiving slot is greater than or equal to the length of the microphone. The microphone is inserted into the receiving slot vertically or horizontally along the length direction through the opening of the receiving slot to achieve storage. A microphone fixing structure can be set inside or outside the opening so that the microphone is fixed after storage. The opening of the receiving slot can be set at any position of the speaker housing 1, including the outer side of the speaker housing 1, such as the upper, lower, left and right outer sides.

[0091] In some specific embodiments, the opening of the receiving slot can be set on the top surface of the storage slot. With this design, after the display screen 3 is closed, the microphone is completely covered by the display screen 3 and completely stored in the speaker housing 1.

[0092] Furthermore, when the microphone is connected to the speaker, such as when the microphone is too close to the speaker, it will cause the speaker to howl. The speaker emits a piercing howl, which greatly affects the user experience. Especially when the microphone is stored in the speaker, the probability of howling is even higher due to the impact and friction of the microphone with the speaker housing 1 during the storage process. The microphone can be automatically turned off when it is stored in the receiving slot to prevent howling from occurring when the microphone is close to the speaker or when the microphone is stored in the speaker.

[0093] In some specific embodiments, the microphone automatically shuts down by a sensing element detecting the distance between the speaker and the microphone. Once the distance is less than or equal to a preset distance, the microphone automatically shuts down. The sensing element can be one or more, and can be a Hall effect sensor, a proximity sensor, an infrared sensor, or any other single electronic component capable of sensing the distance between the speaker and the microphone, or any combination of electronic components. The sensing element can be located on the speaker and / or the microphone. Specifically, when the microphone is inserted into the receiving slot, the sensing element can be located at the opening of the receiving slot so that the microphone shuts down immediately upon insertion. Alternatively, the sensing element can be located at the end of the receiving slot away from the opening to prevent the sensing element from being exposed and aging due to the opening facing outwards.

[0094] In one specific embodiment, the sensing element is a Hall element. The microphone housing structure and the microphone each have corresponding positions. A magnetic element is provided at the corresponding position of the microphone, and a Hall element is provided at the corresponding position of the speaker housing 1. Alternatively, a Hall element is provided at the corresponding position of the microphone, and a magnetic element is provided at the corresponding position of the speaker housing 1. The trigger condition for the Hall element can be that the detected magnetic field strength reaches a preset value. When the detected magnetic field strength is greater than or equal to the preset value, it means that the distance between the speaker and the microphone meets the requirement to trigger feedback, and the microphone needs to be turned off. Preferably, a magnetic element is provided at the corresponding position of the microphone, and a Hall element is provided at the corresponding position of the speaker housing 1. Since the microphone moves around during karaoke, it may move to other places with strong magnetic fields. A Hall element on the microphone may cause the microphone to turn off incorrectly, thus affecting the experience. When the microphone is inserted into the receiving slot, the Hall element is located at the opening of the receiving slot of the speaker housing 1 or at the end away from the opening.

[0095] In another specific embodiment, the sensing element is a Hall element. A charging structure is correspondingly provided on the speaker housing 1, and a power receiving structure is correspondingly provided on the microphone. The trigger condition for the Hall element can be the change in magnetic field caused by the instantaneous power-on when the microphone is charging. When a change in magnetic field is detected, it means that the distance between the speaker and the microphone is sufficient to trigger a feedback sound, requiring the microphone to be turned off. The charging structure can be located on the outer side of the speaker housing 1, or it can be located in a corresponding receiving slot. The microphone can be inserted into the housing. The charging structure is located at the end of the receiving slot of the speaker housing 1 away from the opening. A power receiving structure is correspondingly provided on the bottom or end face of the microphone. The Hall element is located near the charging structure, and the Hall element can sense the change in magnetic field caused by the instantaneous power-on.

[0096] In the microphone storage structure of this embodiment, when the user needs to use the microphone, the lifting drive can be controlled to automatically extend the microphone out of the receiving slot opening, at which point the user can directly remove and use the microphone. When the user does not need to use the microphone, the microphone can be directly inserted into the receiving slot, and then the lifting drive will automatically lower the microphone and store it in the receiving slot. This design allows for simple and direct microphone placement and removal, greatly reducing the difficulty of placement and removal and effectively improving efficiency.

[0097] The present invention provides a detailed description of a smart speaker. For those skilled in the art, based on the ideas of the embodiments of the present invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A smart speaker, characterized in that, Includes speaker housing (1), speaker column assembly (2), and drive assembly (4); The drive assembly (4) is installed inside the speaker housing (1). The drive assembly (4) is connected to the sound column assembly (2) to drive the sound column assembly (2) to reciprocate relative to the speaker housing (1) in a first direction. The drive component (4) is connected to a noise reduction component.

2. The smart speaker according to claim 1, characterized in that, The sound column assembly (2) includes a sound column body (202) and a sound column shell (201). The sound column body (202) is movably fitted inside the sound column shell (201); The drive assembly (4) is connected to the sound column housing (201) and the sound column body (202), and when the drive assembly (4) drives the sound column housing (201) to reciprocate relative to the speaker housing (1) along the first direction, the sound column body (202) is driven to reciprocate synchronously relative to the sound column housing (201) along the first direction.

3. The smart speaker according to claim 2, characterized in that, The drive assembly (4) includes a motor, an inner lead screw (401), an outer lead screw (402), and a connecting part (404). The motor is installed inside the speaker housing (1) and connected to the inner lead screw (401). The motor is used to drive the inner lead screw to rotate around a first direction. The bottom of the speaker housing (201) is provided with a first threaded part (403). The first threaded part (403) is threaded to the inner lead screw (401). The connecting part (404) is rotatably installed on the bottom of the speaker housing (201). The outer lead screw (402) is movably fitted outside the inner lead screw (401) and connected to the inner lead screw (401) through the connecting part (404). When the inner screw (401) is driven to rotate, the connecting part (404) drives the outer screw (402) to rotate synchronously. At the same time, the outer screw (402) reciprocates relative to the inner screw (401). The bottom of the sound column body (202) is connected to a second threaded part (405), which is threaded to the external lead screw (402).

4. The smart speaker according to claim 3, characterized in that, The noise reduction component includes a ball bearing (5); The outer ring of the ball bearing (5) is connected to the bottom of the sound column housing (201), and the inner ring of the ball bearing (5) is connected to the connecting part (404).

5. The smart speaker according to claim 4, characterized in that, The noise reduction component also includes a first sliding sleeve (6), which is fitted onto the inner lead screw (401). The outer side wall of the first sliding sleeve (6) is in contact with the inner side wall of the outer lead screw (402).

6. The smart speaker according to claim 5, characterized in that, The sound column body (202) is equipped with a hollow guide tube (2021). The guide cylinder (2021) is movably fitted onto the external lead screw (402).

7. The smart speaker according to claim 6, characterized in that, The noise reduction component also includes a second sliding sleeve (7), which is fitted onto the external lead screw (402). The outer wall of the second sliding sleeve (7) is in contact with the inner wall of the guide cylinder (2021).

8. The smart speaker according to claim 7, characterized in that, The first sliding sleeve (6) and the second sliding sleeve (7) are graphite copper sleeves.

9. The smart speaker according to claim 6, characterized in that, The sound column body (202) is equipped with a plurality of support members (2022) spaced apart along a first direction, and the support members (2022) abut against the outer wall of the guide cylinder (2021).

10. The smart speaker according to claim 2, characterized in that, The speaker column body (202) is provided with a full-range speaker and / or a mid-range speaker and / or a high-frequency speaker; A low-frequency speaker is installed inside the speaker housing (1).

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