Intelligent device with stereo sound field

Abstract

The utility model relates to the technical field of audio equipment, and discloses an intelligent device with a stereo sound field, comprising a housing, the housing is provided with at least one first audio unit, the sound output normal of the first audio unit is arranged towards the set reference direction; the sound output normal lines of the plurality of second audio units and the sound output normal line of the first audio unit present the following distribution state in the space vector relationship: the sound output normal line of the first audio unit located at the center is used as a reference axis; and the sound output normal lines of the plurality of second audio units have preset angles in the horizontal direction and / or the vertical direction, so that the effect of expanding the sound field is achieved, and an immersive three-dimensional sound effect can be provided even outdoors.

Description

Technical Field

[0001] This utility model relates to the field of audio equipment technology, and in particular to an intelligent device with a stereo sound field. Background Technology

[0002] Whether it's a home speaker primarily used indoors or an outdoor speaker designed for outdoor activities, sound quality has always been a key factor in enhancing the user experience. The sound quality of a speaker largely depends on the characteristics of the speaker's sound production and the propagation and reflection of sound in the surrounding environment.

[0003] Most speakers on the market, especially common low-frequency and full-range speakers, generally adopt a forward-facing design, resulting in a limited soundstage. In relatively enclosed indoor environments with many reflective surfaces, walls and ceilings can be used to create multiple reflections and refractions of sound, thus creating a relatively three-dimensional soundstage. However, when speakers are used outdoors, the lack of regular and close-range reflective surfaces, even with distant obstacles such as buildings, results in significant sound delay and energy attenuation due to the distance. This limits the reflection effect, making the sound thin and lacking in stereo when listening outdoors. The breadth and depth of the soundstage are severely limited, greatly reducing the listening experience.

[0004] Therefore, improvements to existing technologies are necessary.

[0005] The above information is provided as background information only to aid in understanding this disclosure and does not constitute an assertion or admission that any of the above content can be used as prior art relative to this disclosure. Utility Model Content

[0006] This invention provides an intelligent device with a stereo sound field to solve the problems existing in the prior art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A smart device with a stereo sound field includes a housing, the housing having:

[0009] At least one first audio unit, wherein the sound output normal of the first audio unit is set toward a set reference direction;

[0010] Multiple second audio units, the sound output normals of the multiple second audio units and the sound output normals of the first audio unit are distributed in the following spatial vector relationship as follows:

[0011] With the sound output normal of the first audio unit located at the center as the reference axis, the sound output normals of the plurality of second audio units have a predetermined angle in the horizontal and / or vertical directions.

[0012] Optionally, the first audio unit is provided as a low-frequency speaker;

[0013] The second audio unit is provided in multiple ways, at least one of the second audio units is a full-range speaker, or at least one of the second audio units is a high-frequency speaker;

[0014] One of the second audio units is coaxially arranged with the first audio unit, and the two second audio units located on both sides are symmetrical about the vertical axis of the first audio unit.

[0015] Optionally, at least two of the second audio units have their sound output normals having a predetermined angle in the horizontal direction.

[0016] Optionally, at least two of the second audio units have their sound output normals having a predetermined angle in the vertical direction.

[0017] Optionally, at least two of the second audio units have a predetermined angle in both the vertical and horizontal directions for their sound output normals, with the horizontal angle being smaller than the vertical angle.

[0018] Optionally, the predetermined angle is set to a range of 0° to 45°.

[0019] Optionally, the housing is further provided with an air duct, which is arranged laterally along the direction of the long side of the housing;

[0020] The duct has an outlet that connects to the outside of the speaker, and the outlet is an arc-shaped surface that bends outward toward the central axis of the duct.

[0021] Optionally, the housing includes a front shell and a rear shell, the front shell and the rear shell being fixedly connected by fasteners;

[0022] The front shell is provided with a first inclined surface for overlapping with the rear shell, and the rear shell is provided with a second inclined surface for overlapping with the front shell.

[0023] Optionally, the intelligent device with a stereo sound field further includes a housing assembly, the housing assembly including a set of two first housings arranged opposite each other, and a set of second housings arranged opposite each other, each of the first housings and the second housings being fence-shaped;

[0024] The first outer shell and the second outer shell are arranged in an alternating connection and surround the outside of the shell;

[0025] The housing is provided with four uprights, which are respectively set at the connection positions of the first outer shell and the second outer shell; a first snap-fit ​​and a second snap-fit ​​are respectively provided on both sides of the uprights; the first outer shell is provided with a first snap-fit ​​groove that engages with the first snap-fit, and the second outer shell is provided with a second snap-fit ​​groove that engages with the second snap-fit.

[0026] Optionally, the two first housings are arranged along the direction of the reference axis, and the two second housings are arranged along the direction perpendicular to the reference axis;

[0027] The second outer shell is provided with a connector, and the extension portion of the front shell is provided with a connector groove at the corresponding position of the connector, and the connector is inserted into the connector groove.

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

[0029] This utility model provides an intelligent device with a stereo sound field. By setting at least one first audio unit toward a set reference direction, and cooperating with setting the sound output normal to present multiple second audio units at predetermined angles in the horizontal and / or vertical directions, the sound field is expanded, providing an immersive stereo sound effect even outdoors.

[0030] This invention has other features and advantages that will be apparent from or will be set forth in detail in the accompanying drawings and the following detailed description, which together serve to explain the particular principles of this invention. Attached Figure Description

[0031] 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.

[0032] Figure 1 This is a schematic diagram of the internal structure of an intelligent device with a stereo sound field provided in an embodiment of this utility model;

[0033] Figure 2 This is a schematic diagram of the three-dimensional structure of a smart device with a stereo sound field provided by an embodiment of the present invention, after the outer shell component is omitted;

[0034] Figure 3 yes Figure 2 Front view;

[0035] Figure 4 This is another internal structure diagram of an intelligent device with a stereo sound field provided in this embodiment of the present utility model;

[0036] Figure 5 This is a schematic diagram illustrating the establishment of the spatial coordinate system of the sound output normals of each second audio unit in an intelligent device with a stereo sound field, as provided in this embodiment of the present invention.

[0037] Figure 6 This is a schematic diagram of the sound output normal of one of the second audio units in a smart device with a stereo sound field provided by this utility model embodiment in a spatial coordinate system;

[0038] Figure 7 yes Figure 4 Top view;

[0039] Figure 8 yes Figure 4 Side view;

[0040] Figure 9 yes Figure 4 Another view;

[0041] Figure 10 yes Figure 2 Rear view;

[0042] Figure 11 This is a top view and a side view of the common view of the sound output normals α, θ and β in an intelligent device with a stereo sound field provided in this embodiment of the utility model;

[0043] Figure 12 This is a schematic diagram of the test points for testing the speaker in an embodiment of this utility model;

[0044] Figure 13 This is a frequency response diagram of one embodiment of an intelligent device with a stereo sound field provided by this utility model.

[0045] Figure 14 This is a schematic diagram of the air duct in an intelligent device with a stereo sound field provided in an embodiment of this utility model;

[0046] Figure 15 This is a schematic diagram of the split structure of the front shell and the rear shell in a smart device with a stereo sound field provided by an embodiment of this utility model;

[0047] Figure 16 This is a schematic diagram of the external structure of an intelligent device with a stereo sound field provided in an embodiment of this utility model;

[0048] Figure 17 yes Figure 16 A partial cross-sectional view;

[0049] Figure 18 yes Figure 16 Another partial cross-sectional view;

[0050] Figure 19 yes Figure 16 A structural diagram from another perspective.

[0051] Reference numerals: 11, First outer shell; 112, First slot; 12, Second outer shell; 121, Second slot; 122, Connector; 20, Housing; 200, Cavity; 21, Front shell; 211, Connector slot; 212, Extension; 2121, First slope; 22, Rear shell; 221, Second slope; 23, Column; 231, First connector; 232, Second connector; 31, First audio unit; 32, Second audio unit; 40, Air duct; 41, Outlet; 50, Screen; 60, Handrail slot; 70, Microphone storage assembly; 80, Battery compartment. Detailed Implementation

[0052] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0053] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0054] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0055] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0056] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0057] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0058] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0059] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0060] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0061] In existing technologies, if all speakers in a speaker are oriented in the same direction and are placed vertically due to space constraints, the sound field is not wide enough. Especially in outdoor scenes without external reflections, the sound effect of the speaker is thin and cannot meet actual needs.

[0062] This utility model provides an intelligent device with a stereo sound field, aiming to address the shortcomings of existing speaker technology.

[0063] Please refer to Figure 1 The smart device with a stereo sound field provided in this embodiment includes a housing 20, a screen 50 on the top of the housing 20, a cavity 200 inside the housing 20, a microphone storage assembly 70 in the cavity 200 for providing storage space for the microphone, and a battery compartment 80 for storing batteries to provide power for the operation of the entire speaker.

[0064] Please refer to the reference. Figures 1 to 4 The housing 20 is also provided with:

[0065] At least one first audio unit 31, the sound output normal of the first audio unit 31 is set toward a set reference direction; a plurality of second audio units 32, the sound output normals of the plurality of second audio units 32 and the sound output normals of the first audio unit 31 are distributed in the following spatial vector relationship:

[0066] With the sound output normal of the first audio unit 31 located at the center as the reference axis, the sound output normals of the multiple second audio units 32 have a predetermined angle in the horizontal and / or vertical directions, that is, the sound output normals of the multiple second audio units 32 have an angular deflection relative to the reference axis in the horizontal and / or vertical directions.

[0067] It is understood that the spatial vector relationship described in this embodiment refers to the geometric relationships such as the similarity or difference in direction, the size of the included angle, the relative position, and the parallelism or perpendicularity of the sound output normal of each loudspeaker in three-dimensional space, with the sound output normal of the loudspeaker located in the direction of the diaphragm vibration surface of the loudspeaker.

[0068] In this embodiment, a first audio unit 31 is provided, and the first audio unit 31 is a low-frequency speaker. Specifically, the reference direction set above is set to the front of the speaker, that is, when playing audio, the speaker radiates sound in front through the first audio unit 31.

[0069] Furthermore, the predetermined angle is set to a range of 0° to 45°. Within this range, it ensures efficient sound diffusion and fully expands the sound field boundary, while cleverly avoiding sound interference caused by excessively large angles.

[0070] In this embodiment, preferably, there are three second audio units 32. It can be understood that there can also be multiple second audio units 32, which are divided into three groups. The configuration of each group can be referred to the configuration method of a single second audio unit 32 below.

[0071] Based on this, at least one second audio unit 32 is a full-range speaker; or, at least one second audio unit 32 is a high-frequency speaker.

[0072] It is understood that in this embodiment, all three second audio units 32 may be full-range speakers, or only one may be used as a full-range speaker and the other two as high-frequency speakers, or the other two may be used as a high-frequency speaker and a low-frequency speaker respectively.

[0073] When three full-range speakers are used, it is suitable for scenarios with lower requirements for original sound reproduction. When one full-range speaker is used in combination with two high-frequency speakers, it can accurately reproduce high frequencies and enhance the sense of layering, making it suitable for scenarios with higher requirements for sound effects. When one full-range speaker, one high-frequency speaker, and one low-frequency speaker are used, it can further supplement low-frequency sounds and provide audio transition between mid-frequency, low-frequency, and high-frequency, making it suitable for movie-watching scenarios.

[0074] Furthermore, among the three second audio units 32, one of the second audio units 32 is coaxially arranged with the first audio unit 31, and the sound output normal of this second audio unit 32 is oriented towards a predetermined reference direction; please refer to Figure 5 For the sake of accurate description, Figure 5 (a) Taking the plane of the loudspeaker diaphragm as an example, the ZY plane is established with the plane where the loudspeaker diaphragm vibrates. Figure 5 (b) For example, the sound output normal of the first audio unit 31 is taken as the X-axis, which is perpendicular to the Z-Y plane established earlier, thus constructing a three-dimensional spatial coordinate system.

[0075] For ease of explanation later, the sound output normal of the first audio unit 31 is defined as O; Figure 5 Using the orientation of the first audio unit 31 as a reference, the sound output normals of the three second audio units 32, from left to right, are α, β, and θ, where β is parallel to O. α and θ are symmetrical about the vertical axis of the first audio unit 31. It can be understood that the second audio unit 32, coaxial with the first audio unit 31, can supplement the forward-facing audio intensity to ensure the sound reception effect in front of the speaker.

[0076] Please refer to Figure 6 , Figure 6 (a) shows a schematic diagram of the second audio unit 32 located on the far right. Figure 6(b) is used to demonstrate the direction of θ in this three-dimensional space, taking θxy as an example. Where:

[0077] θxy is the angle between the projection of θ onto the XY plane and θ itself;

[0078] θxz is the angle between the projection of θ onto the XZ plane and θ itself;

[0079] θyz is the angle between the projection of θ onto the YZ plane and θ itself.

[0080] Please refer to Figure 7 In one alternative embodiment, the two second audio units 32 located on both sides have their sound output normals deviating from each other by a predetermined angle vector in the horizontal direction.

[0081] It is understood that when multiple second audio units 32 are provided, at least one second audio unit 32 is positioned with its sound output normal inclined to the left, and at least one second audio unit 32 is positioned with its sound output normal inclined to the right; both are within the protection scope of this embodiment. This arrangement can significantly widen the horizontal sound field coverage of the speaker, allowing people in every direction to clearly receive uniform sound, effectively reducing uneven sound attenuation, enhancing the stereo effect of the sound, and improving the overall listening experience.

[0082] For example, with Figure 7 Based on the orientation shown, the second audio unit 32 on the left has its sound emission normal α tilted to the left so that the sound waves radiate tilted to the left; the second audio unit 32 on the right has its sound emission normal θ tilted to the right so that the sound waves radiate tilted to the right. The angle φ between the sound emission normal α, the sound emission normal θ, and the sound emission normal β ranges from 0° to 45°.

[0083] Please refer to Figure 8 In another optional embodiment, the two second audio units 32 located on opposite sides have their sound emission normals deviating from each other by a predetermined angle vector in the vertical direction. Using the orientation shown in the figure as a reference, one second audio unit 32 has its sound emission normal θ tilted upwards so that the sound waves radiate tilted upwards; the other second audio unit 32 has its sound emission normal α tilted downwards so that the sound waves radiate tilted downwards. The angle φ between the sound emission normal α, sound emission normal θ, and sound emission normal β all range from 0° to 45°.

[0084] It is understood that when there are multiple second audio units 32, at least one second audio unit 32 has its sound output normal d3 tilted upwards and at least one second audio unit 32 has its sound output normal d4 tilted downwards, both of which are within the protection scope of this embodiment.

[0085] This setup can significantly expand the vertical sound field coverage of the speakers, making it suitable for listening scenarios such as lecture halls and multi-level stands, allowing listeners on both upper and lower levels to receive clear sound and avoiding sound concentration at a certain height.

[0086] Please refer to Figure 9 The sound emission normals α and θ of the two second audio units 32 shown in the figure are projections in a vertical plane. In another optional embodiment, the sound emission normals of the two second audio units 32 located on both sides are offset by predetermined angular vectors in opposite directions in both the vertical and horizontal directions. Using the orientation shown in the figure as a reference, the sound emission normal θ of the second audio unit 32 located on the left radiates obliquely towards the upper left; the sound emission normal α of the second audio unit 32 located on the right radiates obliquely towards the lower right.

[0087] It is understood that when there are multiple second audio units 32, the sound output normal θ of at least one second audio unit 32 is inclined to radiate upward to the left, and the sound output normal α of at least one second audio unit 32 is inclined to radiate downward to the right, all of which are within the protection scope of this embodiment.

[0088] Please refer to Figure 10 and Figure 11 Among them, the two second audio units 32 located on both sides are defined with a vector deviation angle of their sound output normal in the horizontal direction as φ1 and a vector deviation angle of their sound output normal in the vertical direction as φ2.

[0089] Figure 11 (a) is a top view of the common view of the sound output normals α, θ and β; wherein, the angle between the sound output normals α and θ and the sound output normal β of the second audio unit 32 in the horizontal dimension is φ1, and the value of φ1 is 0°<φ1≤60°.

[0090] It should be noted that the values ​​of φ1 between the sound normal α and the sound normal β, and the values ​​of φ1 between the sound normal β and the sound normal θ, can be the same or different.

[0091] Figure 11 (b) is a side view of the common view of the sound output normals α, θ and β; wherein, the angle between the sound output normals α and θ and the sound output normal β of the second audio unit 32 in the vertical dimension is φ2, and the value of φ2 is in the range of 0°~45°.

[0092] In this embodiment, φ1 < φ2.

[0093] The sound output normal layout provided in this embodiment not only widens the horizontal sound field so that surrounding listeners can hear clearly, but also takes into account the vertical sound field, providing a better sound reception experience for listeners at different heights, with rich sound layers and adaptability to complex scenarios.

[0094] Please refer to Figure 12 Multiple test points were set up within a 60-degree angle around the speaker, and the sound signal emitted by the speaker was collected at each test point to obtain... Figure 13 The frequency response diagram shown is illustrated. As can be seen from the diagram, the loudness at the front of the speaker is significantly higher than that on the sides, causing the sound waves to be output forward in a directional manner. This ensures the best audiovisual effect and prominent loudness for those directly in front, while also catering to listeners at different heights around the speaker. The sound is three-dimensional and layered, meeting the requirements for both movie watching and music appreciation applications.

[0095] It is understandable that the aforementioned diagram only shows one example, and other settings can be made in actual applications by referring to this rule.

[0096] Please refer to Figure 1 , Figure 4 , Figures 7-10 ,as well as Figure 14 In this embodiment, the housing 20 is also provided with an air duct 40, which is arranged laterally along the direction of the long side of the housing 20.

[0097] It is understandable that wind noise may be encountered when the air duct 40 is guiding the air, which will affect the sound quality. In this embodiment, the horizontal layout closely follows the natural direction of the airflow inside the box and works in coordination with the long side to effectively lengthen the air guiding path and expand the volume of the cavity in the branch pipe, which is conducive to increasing the air volume and thus optimizing the airflow state.

[0098] Furthermore, the duct 40 has an outlet 41 that connects to the outside of the speaker enclosure. This outlet 41 is an arc-shaped section that bends outward toward the central axis of the duct 40. The arc-shaped outlet 41, with its gradually changing cross-section, guides the airflow smoothly and orderly in and out, minimizing the interference of wind noise on sound quality.

[0099] Please refer to Figure 14 In the diagram, a is a three-dimensional schematic diagram of the structure of duct 40, b is its side view, c is a partial enlarged view of the outlet 41, L1 is the central axis of the duct, and L2 is the bisector of the duct. Figure 8As shown in (c), the numerical relationship between H1 and H2 satisfies H1 / H2=1.2-1.5. This relationship describes the smoothness of the inner curved surface of the duct. When this relationship is satisfied, the curved surface is in a smooth state, which is conducive to the guidance of airflow, thereby minimizing the interference of wind noise on sound quality.

[0100] Please refer to Figure 15 In this embodiment, the housing 20 includes a front housing 21 and a rear housing 22, which are fixedly connected by fasteners. It is understood that the fasteners can be screws or bolts, which are used to provide a stable and reliable connection between the front housing 21 and the rear housing 22.

[0101] The front shell 21 has an extension portion 212 extending toward the rear shell 22 at the connection point with the rear shell 22. The extension portion 212 is provided with a first inclined surface 2121 for overlapping with the rear shell 22, and the rear shell 22 is provided with a second inclined surface 221 for overlapping with the front shell 21.

[0102] In practical applications, the first inclined surface 2121 can be set at a position relatively above the front shell 21, and the second inclined surface 221 is set at a position relatively below the rear shell 22 accordingly; or the first inclined surface 2121 can be set at a position relatively below the front shell 21, and the second inclined surface 221 is set at a position relatively above the rear shell 22 accordingly.

[0103] By setting the first inclined surface 2121 and the second inclined surface 221, the contact area can be increased to achieve precise positioning, and at the same time, it is beneficial to enhance the tightness of the connection between the front shell 21 and the rear shell 22, thereby improving the structural strength of the speaker.

[0104] Please refer to Figure 16 and Figure 17 Furthermore, in this embodiment, the speaker also includes a housing assembly, which includes a set of two first housings 11 arranged opposite to each other and a set of second housings 12 arranged opposite to each other, each of the first housings 11 and the second housing 12 being in the form of a fence.

[0105] Specifically, the term "fence-like" here refers to the fact that both the first outer shell 11 and the second outer shell 12 are surrounded by vertical or horizontal baffles, with openings for sound output between the baffles, and the opening ratio of the first outer shell 11 and the second outer shell 12 is not less than 40%.

[0106] The fence-like outer shell design significantly reduces the overall weight of the speaker, improving its portability. Furthermore, the structural characteristics of the fence structure help to increase the free diffusion of sound and enhance acoustic openness.

[0107] Furthermore, in this embodiment, the first outer shell 11 and the second outer shell 12 are arranged in an alternating manner and surround the outside of the housing 20. The housing 20 is provided with four pillars 23, which are respectively arranged at the connection positions of the first outer shell 11 and the second outer shell 12.

[0108] like Figure 17 As shown, the column 23 has a first snap-fit ​​component 231 and a second snap-fit ​​component 232 on both sides. The first outer shell 11 has a first snap-fit ​​groove 112 that engages with the first snap-fit ​​component 231, and the second outer shell 12 has a second snap-fit ​​groove 121 that engages with the second snap-fit ​​component 232. The snap-fit ​​structure of the column 23 makes the installation process of the outer shell assembly convenient and efficient, and also helps to evenly distribute the force and achieve a stable connection between the first outer shell 11 and the second outer shell 12.

[0109] Two first housings 11 are arranged along the direction of the reference axis, and two second housings 12 are arranged along the direction perpendicular to the reference axis; that is, one first housing 11 is arranged in the sound output direction of the first audio unit 31 and the second audio unit 32, and the other first housing 11 is arranged on the back side in the sound output direction.

[0110] like Figure 18 As shown, the second outer shell 12 is further provided with a connector 122, and the extension portion 212 of the front shell 21 is provided with a connector groove 211 at the corresponding position of the connector 122, and the connector 122 is inserted into the connector groove 211. The connector structure is provided in the second outer shell 12, which can avoid the first audio unit 31 and the second audio unit 32, thus avoiding any impact on the sound output effect; and the design of the connector structure can simplify the cumbersome assembly process, ensure that the outer shell fits tightly, and reduce the risk of errors in the production process.

[0111] like Figure 19 As shown, in this embodiment, the speaker is further provided with a handle groove 60, which is formed by a through groove provided at a corresponding position by the rear shell 22 and one of the first outer shells 11. Due to space constraints, the air duct 40 is placed horizontally to ensure its length. The rear placement of the handle groove 60 effectively utilizes the internal space and improves the space utilization rate.

[0112] In this embodiment, to ensure that the duct 40 has sufficient length to optimize airflow and reduce wind noise, the duct 40 is installed horizontally. The rear-mounted handle groove 60 effectively utilizes this part of the internal space that might otherwise be idle, improving space utilization. This satisfies the functional requirements of the duct 40 while also taking into account the needs of the gripping part.

[0113] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A smart device with a stereo sound field, characterized in that, Includes a housing (20), the housing (20) being provided with: At least one first audio unit (31) is provided, wherein the sound output normal of the first audio unit (31) is set toward a set reference direction; Multiple second audio units (32) have their output normals and the output normals of the first audio unit (31) distributed in the following spatial vector relationship: With the sound output normal of the first audio unit (31) located at the center as the reference axis, the sound output normals of the plurality of second audio units (32) have a predetermined angle in the horizontal and / or vertical directions.

2. The intelligent device with a stereo sound field according to claim 1, characterized in that, The first audio unit (31) is provided, and the first audio unit (31) is a low-frequency speaker; The second audio unit (32) is provided in multiple ways, at least one of the second audio units (32) is a full-range speaker, or at least one of the second audio units (32) is a high-frequency speaker; One of the second audio units (32) is coaxially arranged with the first audio unit (31), and the two second audio units (32) located on both sides are symmetrical about the vertical axis of the first audio unit (31).

3. The intelligent device with a stereo sound field according to claim 2, characterized in that, At least two of the second audio units (32) have a predetermined angle in the horizontal direction for their sound output normals.

4. The intelligent device with a stereo sound field according to claim 2, characterized in that, At least two of the second audio units (32) have a predetermined angle in the vertical direction for their sound output normals.

5. The intelligent device with a stereo sound field according to claim 2, characterized in that, At least two of the second audio units (32) have a predetermined angle in both the vertical and horizontal directions for their sound output normals, with the horizontal angle being smaller than the vertical angle.

6. The intelligent device with a stereo sound field according to any one of claims 1 to 5, characterized in that, The predetermined angle is assumed to be in the range of 0° to 45°.

7. The intelligent device with a stereo sound field according to claim 1, characterized in that, The housing (20) is also provided with an air duct (40), which is arranged laterally along the direction of the long side of the housing (20); The duct (40) has an outlet (41) that connects to the outside of the speaker, and the outlet (41) is an arc-shaped surface that bends outward toward the central axis away from the duct (40).

8. The intelligent device with a stereo sound field according to claim 1, characterized in that, The housing (20) includes a front housing (21) and a rear housing (22), and the front housing (21) and the rear housing (22) are fixedly connected by fasteners; The front shell (21) is provided with a first inclined surface for overlapping with the rear shell (22), and the rear shell (22) is provided with a second inclined surface for overlapping with the front shell (21).

9. The intelligent device with a stereo sound field according to claim 8, characterized in that, It also includes a housing assembly, which includes a set of two first housings (11) arranged opposite to each other and a set of second housings (12) arranged opposite to each other, each of the first housings (11) and the second housings (12) being fence-shaped; The first outer shell (11) and the second outer shell (12) are arranged in an alternating manner and surround the outside of the shell (20); The housing (20) is provided with four columns (23), which are respectively set at the connection positions of the first outer shell (11) and the second outer shell (12); the two sides of the column (23) are respectively provided with a first snap-fit ​​member (231) and a second snap-fit ​​member (232). The first outer shell (11) is provided with a first snap-fit ​​groove (112) that engages with the first snap-fit ​​member (231), and the second outer shell (12) is provided with a second snap-fit ​​groove (121) that engages with the second snap-fit ​​member (232).

10. The intelligent device with a stereo sound field according to claim 9, characterized in that, The two first housings (11) are arranged along the direction of the reference axis, and the two second housings (12) are arranged along the direction perpendicular to the reference axis; The second outer shell (12) is provided with a connector (122), and the extension portion (212) of the front shell (21) is provided with a connector groove (211) at the corresponding position of the connector (122), and the connector (122) is inserted into the connector groove (211).

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