A hanging intelligent sound box

Abstract

The present application relates to the technical field of intelligent sound, in particular to a kind of suspension type intelligent sound, including substrate, hanger, mounting seat and sound body, linear module for driving hanger reciprocating movement along the length direction of substrate is installed on substrate, rotating module for driving mounting seat rotation is installed on hanger;Sound body is set to the side of mounting seat away from hanger;The present application can flexibly adjust the position and state of sound body according to indoor personnel distribution by the mutual cooperation of hanger, mounting seat, linear module and rotating module:When indoor personnel is dense, sound body moves to middle area and switches to horizontal state, so that it can cover most of the space in the room;When personnel concentrates in front, sound body moves to front area and switches to vertical state, and sound waves can be focused on the front core area, reducing the invalid diffusion to the middle and rear rows.

Description

Technical Field

[0001] This invention relates to the field of smart speaker technology, specifically a suspended smart speaker. Background Technology

[0002] Wall-mounted smart speakers, as a space-saving audio device suitable for large indoor environments, are widely used in conference rooms, auditoriums, classrooms, multi-purpose halls, and other venues. Their wall-mounted installation avoids occupying floor space, ensuring smooth movement for people, while also providing a reasonable sound field layout to meet the listening needs of multiple people simultaneously.

[0003] Existing wall-mounted smart speakers typically include a mounting bracket fixed to the wall, a speaker unit suspended from the mounting bracket, and connectors for adjusting the basic angle. The mounting bracket is usually a fixed structure, with the speaker unit secured to it using bolts or hooks.

[0004] However, in large indoor spaces such as conference rooms, auditoriums, and classrooms, where the space is vast and the movement of people is frequent, existing hanging smart speakers, with their fixed positions, struggle to adapt to the changing needs arising from varying crowd distribution. For example, if a speaker is fixed in the middle of a wall, it can cover most of the space when the room is crowded; however, when there are few people (such as in small seminars or group meetings where people are only gathered in the front 1-3 rows), the sound waves will ineffectively diffuse into the empty middle and back rows. If the speaker is fixed in the front of the wall to accommodate fewer people, it can ensure good close-range listening when people are concentrated in the front rows, but once the number of people increases, the middle and back rows will experience problems such as excessive sound wave propagation distance and obstruction, leading to overload in the front rows and unclear sound in the middle and back rows. In some scenarios, additional speaker equipment is needed to compensate for the coverage blind spots, increasing equipment costs. To address these shortcomings, we propose a hanging smart speaker to effectively solve the above-mentioned problems. Summary of the Invention

[0005] The purpose of this invention is to provide a suspended smart speaker to solve the problem mentioned in the background art that the speaker position is fixed and it is difficult to adapt to the changes in sound field requirements caused by differences in the distribution of people.

[0006] This invention is achieved through the following technical solution: a suspended smart speaker, comprising:

[0007] A substrate, which is fixed to an interior wall and extends along the length of the interior space;

[0008] A mounting bracket is slidably connected to the side of the substrate facing away from the wall, and a linear module for driving the mounting bracket to reciprocate along the length of the substrate is installed on the substrate.

[0009] Mounting base, the mounting base is rotatably connected to the side of the bracket facing away from the base plate, and a rotating module for driving the mounting base to rotate is mounted on the bracket;

[0010] The speaker body is located on the side of the mounting base facing away from the bracket. The speaker body includes a main speaker and two auxiliary speakers. When the speaker body moves to the central area of ​​the room, the main speaker and the two auxiliary speakers are in a horizontal state extending along the length of the substrate. When the speaker body moves to the front area of ​​the room, the main speaker and the two auxiliary speakers are in a vertical state extending along the width of the substrate.

[0011] Optionally, the bracket includes a long frame and a short frame arranged in sequence along the vertical direction, both of which are slidably connected to the base plate; the execution end of the linear module is fixedly connected to the long frame or the short frame.

[0012] A plate is hung together at the end of the long frame and the short frame away from the substrate, and the plate is inclined downward; the mounting base is rotatably connected to the side of the plate facing away from the long frame, and the rotating module is mounted on the plate.

[0013] Optionally, the linear module includes a first servo motor, a synchronous belt, and two pulleys rotatably connected to the base plate;

[0014] The first servo motor is fixed on the base plate and its output end is connected to one of the pulleys for transmission. The synchronous belt is wound around each pulley and extends along the length of the base plate. The bracket is fixedly connected to the synchronous belt through a connector.

[0015] Optionally, the rotating module includes a second servo motor fixed on the bracket, and the output end of the second servo motor is connected to the mounting base via a transmission connection.

[0016] Optionally, a fixed seat is fixed in the middle of the mounting base, and the main sound body is fixed on the fixed seat; movable seats that are slidably connected to the mounting base are respectively provided on the left and right sides of the fixed seat, and the two auxiliary sound bodies are movably connected to the corresponding movable seats respectively.

[0017] Optionally, the main sound body and each auxiliary sound body are composed of a cabinet and a loudspeaker; the loudspeaker is embedded and fixed on the side wall of the cabinet facing the direction of sound field radiation.

[0018] Optionally, a variable pitch module is installed on the mounting base, which is used to drive each movable seat to move along the length direction of the mounting base so that the secondary sound body moves away from or closer to the main sound body;

[0019] When the speaker body is in a horizontal position, each sub-speaker maintains a preset distance from the main speaker; when the speaker body is in a vertical position, each sub-speaker fits snugly against the main speaker.

[0020] Optionally, the variable pitch module includes a scissor mechanism and an electrically operated telescopic rod;

[0021] The two ends of the scissor mechanism are hinged to two movable seats respectively, and the middle part of the scissor mechanism is hinged to the mounting seat; the cylinder of the electric telescopic rod is fixed on the mounting seat and extends along the length of the mounting seat, and the actuator of the electric telescopic rod is fixedly connected to one of the movable seats.

[0022] Optionally, a connecting shaft is fixed at both the upper and lower ends of each auxiliary sound body, and each connecting shaft is rotatably connected to the corresponding movable seat through a bearing;

[0023] The mounting base is equipped with a tilting module that corresponds to each sub-sound body. The tilting module is used to drive the sub-sound body to rotate along the axis of the connecting shaft.

[0024] When the secondary sound body and the primary sound body maintain a preset distance, the sound output direction of the secondary sound body tilts at a preset angle away from the sound output direction of the primary sound body.

[0025] When the secondary sound body is attached to the primary sound body, the sound direction of the secondary sound body is the same as that of the primary sound body.

[0026] Optionally, the tilting module includes a torsion spring sleeved on the connecting shaft, one torsion arm of the torsion spring being connected to the movable seat, and the other torsion arm being connected to the auxiliary sound body; when no external force is applied, the elastic force of the torsion spring makes the sound emission direction of the auxiliary sound body the same as that of the main sound body.

[0027] A positioning rod is fixed on the back of the auxiliary sound body, and the axis of the positioning rod is perpendicular to the axis of the connecting shaft; a strip-shaped clearance hole is provided on the movable seat for the positioning rod to move through, and a strip-shaped positioning hole that cooperates with the positioning rod is provided along the length direction on the mounting seat;

[0028] When the secondary sound body and the primary sound body maintain a preset distance, the positioning rod abuts against the wall of the end of the strip positioning hole, so that the sound output direction of the secondary sound body tilts away from the sound output direction of the primary sound body.

[0029] Compared with the prior art, the present invention provides a suspended smart speaker, which has the following beneficial effects:

[0030] 1. This invention, through the cooperation of the bracket, mounting base, linear module, and rotating module, can flexibly adjust the position and state of the speaker body according to the distribution of people in the room: when the room is crowded, the speaker body moves to the central area and switches to a horizontal state, thereby covering most of the room space; when people are concentrated in the front, the speaker body moves to the front area and switches to a vertical state, so that the sound waves can be focused on the front core area, reducing the ineffective diffusion to the middle and rear rows.

[0031] 2. The speaker body of the present invention adopts a three-section structure of "main speaker + dual sub-speakers". Through the cooperation of fixed base, movable base and variable pitch module, when the speaker body is located in the middle area, the sub-speakers are far away from the main speaker and maintain a preset distance, which can effectively cover the front, middle and rear areas of the room; when the speaker body is located in the front area, the sub-speakers are closely attached to the main speaker, which can enhance the sound wave directivity of the front area.

[0032] 3. Through the cooperation of the connecting shaft and the tilting module, when the secondary sound body and the main sound body maintain a preset distance, the secondary sound body tilts at a preset angle away from the main sound body (the left secondary sound body tilts to the left and the right secondary sound body tilts to the right), further widening the sound field coverage of the front and rear areas; when the secondary sound body is in contact with the main sound body, the sound emission direction of the secondary sound body and the main sound body is consistent, and the superposition of the sound waves of the three can significantly enhance the sound field of the front area. Attached Figure Description

[0033] Figure 1 This is a diagram showing the speaker body of the present invention located in the central area of ​​the room;

[0034] Figure 2 This is a top view of the speaker body of the present invention located in the central area of ​​the room;

[0035] Figure 3 This is a side view of the present invention;

[0036] Figure 4 This is a schematic diagram of the variable pitch module of the present invention;

[0037] Figure 5 This is a schematic diagram of the front of the mounting base of the present invention;

[0038] Figure 6 This is a schematic diagram of the back of the mounting base of the present invention;

[0039] Figure 7 This is a schematic diagram of the front of the sub-sound body of the present invention;

[0040] Figure 8 This is a schematic diagram of the back of the auxiliary sound body of the present invention;

[0041] Figure 9 This is a diagram showing the state of the speaker body of the present invention located in the front area of ​​the room;

[0042] Figure 10 This is a top view of the speaker body of the present invention located in the front area of ​​the room.

[0043] In the diagram: 1. Base plate; 2. Hanger; 201. Long frame; 202. Short frame; 203. Plate; 3. Mounting base; 4. Rotating module; 5. Speaker body; 501. Main speaker; 502. Sub-speaker; 6. Fixed base; 7. Movable base; 8. Variable pitch module; 801. Scissor mechanism; 802. Electric telescopic rod; 9. Connecting shaft; 10. Tilting module; 101. Torsion spring; 102. Positioning rod; 11. Strip-shaped clearance hole; 12. Strip-shaped positioning hole. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.

[0045] Please see Figures 1 to 10 A suspended smart speaker includes: a base plate 1, a hanging bracket 2, a mounting base 3, and a speaker body 5.

[0046] The base plate 1 is fixed to the interior wall and extends along the length of the interior space, providing a mounting base for other components. The bracket 2 is slidably connected to the side of the base plate 1 facing away from the wall via a slider and a slide rail. The slide rail is laid along the length of the base plate 1, allowing the bracket 2 to slide along its length. A linear module (not shown) is mounted on the base plate 1 to drive the bracket 2 to reciprocate along its length. The actuator of this linear module is fixedly connected to the bracket 2, enabling it to drive the bracket 2 to reciprocate along its length, thereby adjusting the spatial position of the bracket 2 and subsequent components.

[0047] In addition, the mounting base 3 is rotatably connected to the side of the bracket 2 facing away from the base plate 1. A rotating module 4 for driving the mounting base 3 to rotate is installed on the bracket 2. The rotating module 4 can switch the mounting base 3 between a horizontal state and a vertical state.

[0048] Finally, the speaker body 5 is located on the side of the mounting base 3 facing away from the bracket 2, and it can move synchronously with the movement and rotation of the mounting base 3. The speaker body 5 includes a main speaker 501 and two auxiliary speakers 502; when the speaker body 5 moves with the bracket 2 to the central area of ​​the room, the rotation module 4 drives the mounting base 3 to rotate to a horizontal position, so that the main speaker 501 and the two auxiliary speakers 502 are in a horizontal position extending along the length direction of the substrate 1. When the speaker body 5 moves with the bracket 2 to the front area of ​​the room, the rotation module 4 drives the mounting base 3 to rotate 90° to a vertical position, so that the main speaker 501 and the two auxiliary speakers 502 are in a vertical position extending along the width direction of the substrate 1.

[0049] This embodiment adopts the above design, which can dynamically adapt the sound field requirements according to the distribution of people indoors:

[0050] 1. Crowded settings (such as all-staff meetings in auditoriums or open classes in classrooms);

[0051] At this time, to cover most of the indoor area, the linear module is activated and drives the bracket 2 to move the speaker body 5 to the central area of ​​the room; at the same time, the rotating module 4 is activated synchronously and drives the mounting base 3 to rotate to a horizontal state, so that the speaker body 5 is horizontally arranged. This arrangement allows the sound-producing unit of the speaker body 5 to expand horizontally, and the sound waves naturally diffuse to multiple areas in the front, middle and rear of the room, thereby achieving uniform sound field coverage.

[0052] II. Scenarios where people gather (such as small seminars and group meetings);

[0053] At this time, most people gather in the front of the room. The linear module drives the bracket 2 to move the speaker body 5 to the front area of ​​the room. The rotating module 4 synchronously drives the mounting base 3 to rotate to a vertical position, so that the speaker body 5 is arranged vertically. This arrangement can focus the sound waves on the core listening area in the front (such as the first to third rows in the front row), effectively reducing the diffusion of ineffective sound waves to the back row in the open space.

[0054] The entire adjustment process does not require manual disassembly or reassembly of the speaker body 5. A single person can control the linear module and the rotary module 4 through the controller (such as a button or remote panel) to complete the position and status switching within 30 seconds, which greatly simplifies the operation process and improves the adaptation efficiency for different usage scenarios.

[0055] The following is a description of bracket 2:

[0056] The hanger 2 includes a long frame 201 and a short frame 202 arranged in sequence along the vertical direction. Both the long frame 201 and the short frame 202 are slidably connected to the base plate 1 through the cooperation of sliders and slide rails. The actuator of the linear module is fixedly connected to the long frame 201 or the short frame 202 (in actual assembly, the connection object can be selected according to the load requirements, and a single frame can drive the entire hanger 2 to move). Through the driving force of the linear module, the position of the entire hanger 2 along the base plate 1 can be adjusted.

[0057] A plate 203 is hung on the ends of the long frame 201 and the short frame 202 away from the base plate 1. The plate 203 is hooked to the ends of the two frames, and after hooking, the plate 203 is tilted downward (the tilt angle can be adapted according to the indoor ceiling height and the height of the core listening area, usually 15°-30°) to ensure that the speaker body 5 on the plate 203 can face the listening area below. The mounting base 3 is rotatably connected to the side of the plate 203 facing away from the long frame 201, and the rotating module 4 is installed on the plate 203.

[0058] This design allows the speaker unit 5 to be suspended high in the room via the bracket 2 (avoiding the occupation of low-altitude activity space); at the same time, with the downward tilt angle of the plate 203, the speaker unit can be naturally oriented towards the listening area below (such as the ground seating area or standing activity area), effectively avoiding the upward diffusion and waste of sound waves caused by high suspension, ensuring that the sound waves more accurately cover the people below, and improving the overall listening clarity.

[0059] The following is an introduction to the linear module:

[0060] The linear module includes a first servo motor, a synchronous belt, and two pulleys rotatably connected to the base plate 1. The first servo motor is fixed to the base plate 1, and its output end is connected to one of the pulleys to form a power input end. The synchronous belt is wound around each pulley and extends along the length of the base plate 1, ensuring that the synchronous belt can transmit power along the length of the base plate 1 when it moves. The bracket 2 is fixedly connected to the synchronous belt through a connector to realize the linkage between the bracket 2 and the synchronous belt.

[0061] When the position of the speaker body 5 needs to be adjusted, the first servo motor starts and outputs torque, driving the pulley connected to it to rotate; the pulley drives the pulley on the other side to rotate synchronously through the meshing transmission of the synchronous belt, so that the synchronous belt reciprocates along the length of the substrate 1; the bracket 2 fixed to the synchronous belt moves synchronously with the synchronous belt, thereby driving the subsequent mounting base 3 and speaker body 5 to adjust their positions along the length of the substrate 1, and finally realizing the switching of the speaker body 5 between the central area and the front area of ​​the room.

[0062] The following is an introduction to rotating module 4:

[0063] The rotating module 4 includes a second servo motor fixed on the bracket 2, and the output end of the second servo motor is connected to the mounting base 3 for transmission.

[0064] When it is necessary to switch the layout state of the speaker body 5, the second servo motor receives the control signal and starts: if it is necessary to switch from the vertical state to the horizontal state, the motor output shaft drives the mounting base 3 to rotate 90° clockwise (or counterclockwise) around the axis; if it is necessary to switch from the horizontal state to the vertical state, the motor output shaft drives the mounting base 3 to rotate 90° in the opposite direction, ensuring that the layout state of the speaker body 5 is accurately matched with the sound field requirements of the target area (center / front).

[0065] In this embodiment, the main sound unit 501 and each of the auxiliary sound units 502 are composed of a cabinet and a loudspeaker; the loudspeaker is embedded and fixed on the side wall of the cabinet facing the direction of sound field radiation. Therefore, the main sound unit 501 and the two auxiliary sound units 502 are all independent acoustic units and can produce sound independently.

[0066] A fixed base 6 is fixed in the middle of the mounting base 3, and the main sound body 501 is fixed on the fixed base 6, so that the position of the main sound body 501 relative to the mounting base 3 remains fixed. Movable seats 7 that are slidably connected to the mounting base 3 are respectively provided on the left and right sides of the fixed base 6 (providing a structural basis for subsequent spacing adjustment); two auxiliary sound bodies 502 are respectively movably connected to the corresponding movable seats 7 (providing a structural basis for subsequent angle adjustment).

[0067] In some embodiments of this application, a pitch module 8 is installed on the mounting base 3. The pitch module 8 is used to drive each movable seat 7 to move along the length direction of the mounting base 3 so that the auxiliary sound body 502 moves away from or closer to the main sound body 501.

[0068] When the rotating module 4 drives the mounting base 3 to rotate, causing the speaker body 5 to be in a horizontal position, the variable pitch module 8 synchronously drives the movable base 7 to move away from the fixed base 6, so that each sub-speaker 502 maintains a preset distance from the main speaker 501 (this distance can be adjusted according to the length of the room, usually 30-50cm). When the rotating module 4 drives the speaker body 5 to be in a vertical position, the variable pitch module 8 drives the movable base 7 to move closer to the fixed base 6, so that each sub-speaker 502 is in contact with the main speaker 501.

[0069] In this embodiment, the above design is adopted. When the speaker body 5 moves to the central area of ​​the room with the bracket 2 (suitable for densely populated scenes), the speaker body 5 is in a horizontal state and the sub-speaker 502 and the main speaker 501 maintain a preset distance. The sound waves can spread evenly along the length of the room, effectively covering the front, middle and rear areas of the room.

[0070] When the speaker body 5 is moved to the front area of ​​the room (suitable for scenes with a large number of people), the speaker body 5 is in a vertical position and the sub-speaker 502 is attached to the main speaker 501, which can enhance the sound wave directivity of the front core area and reduce the ineffective sound wave amplification to the middle and rear rows.

[0071] The following is an introduction to the variable pitch module 8:

[0072] The variable pitch module 8 includes a scissor lift mechanism 801 and an electric telescopic rod 802.

[0073] The scissor lift mechanism 801 is composed of multiple sets of cross links hinged together by pins. The two ends of the scissor lift mechanism 801 are respectively hinged to two movable seats 7, and the middle cross node of the scissor lift mechanism 801 is hinged to the mounting seat 3 by pins, forming a telescopic diamond transmission structure. This structure ensures that when the scissor lift mechanism 801 extends or retracts, the two movable seats 7 can move symmetrically in opposite directions along the length of the mounting seat 3 (synchronously moving away or synchronously moving closer).

[0074] The cylinder of the electric telescopic rod 802 is fixed on the mounting base 3 and extends along the length of the mounting base 3. The actuator of the electric telescopic rod 802 is fixedly connected to one of the movable seats 7 to form a power output end.

[0075] When it is necessary to adjust the distance between the auxiliary sound body 502 and the main sound body 501, the electric telescopic rod 802 receives the control signal and acts: if the distance needs to be increased (to adapt to the horizontal state), the piston rod extends outward and pushes the movable seat 7 connected to it to move away from the fixed seat 6 along the length direction of the mounting seat 3; at this time, the scissor mechanism 801 unfolds under the drive of the movable seat 7, and through the lever action of the central hinge point, it simultaneously pulls the other movable seat 7 to move in the opposite direction, so that the two auxiliary sound bodies 502 move away from the main sound body 501 at the same time and maintain a symmetrical distance.

[0076] If the spacing needs to be reduced (to adapt to the vertical state), the piston rod of the electric telescopic rod 802 retracts, pulling the movable seat 7 connected to it to move closer to the fixed seat 6; the scissor mechanism 801 folds accordingly, synchronously driving the movable seat 7 on the other side to move in the same direction, so that the two auxiliary sound bodies 502 simultaneously approach the main sound body 501 and finally fit together.

[0077] In another embodiment of this application, a connecting shaft 9 is fixed at both the upper and lower ends of each sub-sound body 502, and each connecting shaft 9 is rotatably connected to the corresponding movable seat 7 through a bearing. The sub-sound body 502 is movably connected to the corresponding movable seat 7 through the connecting shaft 9.

[0078] The mounting base 3 is equipped with a tilting module 10 corresponding to each sub-sound body 502. The tilting module 10 is used to drive the sub-sound body 502 to rotate along the axis of the connecting shaft 9, so as to realize the dynamic adjustment of the sound direction.

[0079] When the variable pitch module 8 drives the sub-sound body 502 to maintain a preset distance from the main sound body 501 (adapting to the horizontal state and the central area), the tilt module 10 drives the sub-sound body 502 to rotate around the connecting shaft 9, so that the sound emission direction of the sub-sound body 502 tilts at a preset angle away from the sound emission direction of the main sound body 501 (the left sub-sound body tilts to the left and the right sub-sound body tilts to the right by 15°-30° respectively, which can be adapted according to the depth of the room). At this time, the sound emission direction of the sub-sound body 502 diffuses away from the main sound body 501.

[0080] When the variable pitch module 8 drives the secondary sound body 502 to fit into the main sound body 501 (adapting to the vertical state and the front area), the tilt module 10 drives the secondary sound body 502 to rotate in the opposite direction and reset, so that the sound emission direction of the secondary sound body 502 is the same as that of the main sound body 501 (both facing the core listening area).

[0081] In this embodiment, the above design is adopted. When the speaker body 5 moves to the central area of ​​the room with the bracket 2 (suitable for densely populated scenes), the speaker body 5 is in a horizontal state and the sub-speaker 502 and the main speaker 501 maintain a preset distance. At the same time, the two sub-speakers 502 are symmetrically tilted, which can cover the front row and rear row areas of the room as much as possible, eliminating the "blind spots at the front and rear edges" of the traditional planar layout.

[0082] When the speaker body 5 moves to the front area of ​​the room (suitable for scenes with a large number of people), the speaker body 5 is in a vertical position and the auxiliary speaker 502 is attached to the main speaker 501. At the same time, the sound emission direction of the auxiliary speaker 502 and the main speaker 501 is the same. The superposition of the sound waves of the three can significantly enhance the sound field in the front area.

[0083] The tilt module 10 is described below:

[0084] The tilting module 10 includes a torsion spring 101 sleeved on the connecting shaft 9. One torsion arm of the torsion spring 101 is connected to the movable seat 7, and the other torsion arm is connected to the auxiliary sound body 502. When no external force is applied, the torsion spring 101 is in a slightly pre-tensioned state. The elastic force of the torsion spring 101 makes the sound emission direction of the auxiliary sound body 502 the same as the sound emission direction of the main sound body 501 (i.e., facing forward).

[0085] A positioning rod 102 is fixed on the back of the auxiliary sound body 502 (the side away from the sound-producing surface). The axis of the positioning rod 102 is perpendicular to the axis of the connecting shaft 9 (to avoid rotational interference). A strip-shaped clearance hole 11 is provided on the movable seat 7 for the positioning rod 102 to move through. The end of the positioning rod 102 away from the auxiliary sound body 502 passes through the clearance hole and extends outward. The length direction of the strip-shaped clearance hole 11 is consistent with the sliding direction of the movable seat 7, providing space for the positioning rod 102 to move with the movable seat 7.

[0086] A strip-shaped positioning hole 12 is provided on the mounting base 3 along its length to cooperate with the positioning rod 102. The length of the positioning hole is adapted to the sliding stroke of the movable base 7, and the side of the hole wall near the fixed base 6 is a straight section, while the side away from the fixed base 6 is an inclined guide section (the inclination angle matches the preset tilt angle of the auxiliary sound body 502). The end of the positioning rod 102 passes through the strip-shaped clearance hole 11 and is embedded in the strip-shaped positioning hole 12 to form a guide fit structure.

[0087] When the variable pitch module 8 drives the movable seat 7 to move away from the fixed seat 6 so that the sub-sound body 502 and the main sound body 501 maintain a preset distance, the positioning rod 102 moves with the movable seat 7 towards the inclined guide section of the strip positioning hole 12 until the positioning rod 102 abuts against the hole wall at the end of the strip positioning hole 12; that is, the end of the positioning rod 102 abuts against the inclined hole wall and is subjected to a lateral thrust. This thrust overcomes the preload of the torsion spring 101 and drives the sub-sound body 502 to rotate around the connecting shaft 9 so that the sound emission direction of the sub-sound body 502 tilts away from the sound emission direction of the main sound body 501, thereby achieving sound field diffusion.

[0088] When the variable pitch module 8 drives the movable seat 7 to move closer to the fixed seat 6, the positioning rod 102 moves with the movable seat 7 to the straight section of the strip positioning hole 12. At this time, the positioning rod 102 is not subjected to the tilting force of the hole wall, and the elastic force of the torsion spring 101 drives the secondary sound body 502 to reset, so that its sound emission direction is completely consistent with the main sound body 501, realizing the superposition of sound waves in the same direction.

[0089] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0090] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A suspended smart speaker, characterized in that, include: A substrate, which is fixed to an interior wall and extends along the length of the interior space; A mounting bracket is slidably connected to the side of the substrate facing away from the wall, and a linear module for driving the mounting bracket to reciprocate along the length of the substrate is installed on the substrate. Mounting base, the mounting base is rotatably connected to the side of the bracket facing away from the base plate, and a rotating module for driving the mounting base to rotate is mounted on the bracket; The speaker body is located on the side of the mounting base facing away from the bracket. The speaker body includes a main speaker and two auxiliary speakers. When the speaker body moves to the central area of ​​the room, the main speaker and the two auxiliary speakers are in a horizontal state extending along the length of the substrate. When the speaker body moves to the front area of ​​the room, the main speaker and the two auxiliary speakers are in a vertical state extending along the width of the substrate. A fixed base is fixed in the middle of the mounting base, and the main sound body is fixed on the fixed base; movable bases that are slidably connected to the mounting base are respectively provided on the left and right sides of the fixed base, and the two auxiliary sound bodies are movably connected to the corresponding movable bases respectively. A variable pitch module is installed on the mounting base. The variable pitch module is used to drive each movable seat to move along the length direction of the mounting base so that the secondary sound body moves away from or closer to the main sound body. When the speaker body is in a horizontal position, each sub-speaker maintains a preset distance from the main speaker; when the speaker body is in a vertical position, each sub-speaker fits into the main speaker. Each auxiliary sound body has a connecting shaft fixed at both the upper and lower ends, and each connecting shaft is rotatably connected to the corresponding movable seat through bearings; The mounting base is equipped with a tilting module that corresponds to each sub-sound body. The tilting module is used to drive the sub-sound body to rotate along the axis of the connecting shaft. When the secondary sound body and the primary sound body maintain a preset distance, the sound output direction of the secondary sound body tilts at a preset angle away from the sound output direction of the primary sound body. When the secondary sound body is attached to the primary sound body, the sound direction of the secondary sound body is the same as that of the primary sound body.

2. A suspended smart speaker according to claim 1, characterized in that: The bracket includes a long frame and a short frame arranged in sequence along the vertical direction, both of which are slidably connected to the base plate; the execution end of the linear module is fixedly connected to either the long frame or the short frame. A plate is hung together at the end of the long frame and the short frame away from the substrate, and the plate is inclined downward; the mounting base is rotatably connected to the side of the plate facing away from the long frame, and the rotating module is mounted on the plate.

3. A suspended intelligent speaker according to any one of claims 1 or 2, characterized in that: The linear module includes a first servo motor, a synchronous belt, and two pulleys rotatably connected to the base plate. The first servo motor is fixed on the base plate and its output end is connected to one of the pulleys for transmission. The synchronous belt is wound around each pulley and extends along the length of the base plate. The bracket is fixedly connected to the synchronous belt through a connector.

4. A suspended intelligent speaker according to any one of claims 1 or 2, characterized in that: The rotating module includes a second servo motor fixed on the bracket, and the output end of the second servo motor is connected to the mounting base via a transmission connection.

5. A suspended smart speaker according to claim 1, characterized in that: The main sound unit and each auxiliary sound unit are composed of a cabinet and a loudspeaker; the loudspeaker is embedded and fixed on the side wall of the cabinet facing the direction of sound field radiation.

6. A suspended smart speaker according to claim 1, characterized in that: The variable pitch module includes a scissor mechanism and an electric telescopic rod; The two ends of the scissor mechanism are hinged to two movable seats respectively, and the middle part of the scissor mechanism is hinged to the mounting seat; the cylinder of the electric telescopic rod is fixed on the mounting seat and extends along the length of the mounting seat, and the actuating end of the electric telescopic rod is fixedly connected to one of the movable seats.

7. A suspended smart speaker according to claim 1, characterized in that: The tilting module includes a torsion spring sleeved on the connecting shaft. One torsion arm of the torsion spring is connected to the movable seat, and the other torsion arm is connected to the auxiliary sound body. When no external force is applied, the elastic force of the torsion spring makes the sound emission direction of the auxiliary sound body the same as that of the main sound body. A positioning rod is fixed on the back of the auxiliary sound body, and the axis of the positioning rod is perpendicular to the axis of the connecting shaft; a strip-shaped clearance hole is provided on the movable seat for the positioning rod to move through, and a strip-shaped positioning hole that cooperates with the positioning rod is provided on the mounting seat along the length direction; When the secondary sound body and the primary sound body maintain a preset distance, the positioning rod abuts against the wall of the end of the strip positioning hole, so that the sound output direction of the secondary sound body tilts away from the sound output direction of the primary sound body.

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