Speaker Assembly and Terminal Device

Abstract

The present invention provides a speaker assembly and a terminal device. The speaker assembly includes a housing, a speaker, and a protective cover assembly. An accommodation cavity is formed in the housing, and an opening communicating with the accommodation cavity is formed at the top of the housing. The speaker is disposed in the accommodation cavity in a liftable manner, and one end of the speaker provided with a diaphragm faces the opening. The protective cover assembly is disposed at the opening to control the opening and closing of the opening. The technical solution of this application can reduce the risk of damage to the diaphragm of the speaker.

Description

Technical Field

[0001] The present invention relates to the technical field of loudspeakers, and particularly to a loudspeaker assembly and a terminal device. Background Art

[0002] With the improvement of people's living standards, loudspeakers have been integrated into our lives. The dome tweeter is a relatively common tweeter in current car audio and home audio. Due to structural reasons, the dome is exposed on the surface. In the non-playing state, the exposed dome diaphragm is at risk of damage when encountering situations such as handling, storage, or being poked by people. Summary of the Invention

[0003] The main object of the present invention is to provide a loudspeaker assembly and a terminal device, aiming to reduce the risk of damage to the diaphragm of the loudspeaker.

[0004] To achieve the above object, a loudspeaker assembly proposed by the present invention includes:

[0005] A housing, a receiving cavity is formed inside the housing, and an opening communicating with the receiving cavity is provided at the top of the housing;

[0006] A loudspeaker, the loudspeaker is disposed in the receiving cavity in a liftable manner, and one end of the loudspeaker provided with a diaphragm faces the opening; and

[0007] A protective cover assembly, the protective cover assembly is disposed at the opening to control the opening and closing of the opening.

[0008] In an embodiment of the loudspeaker assembly of the present application, one of a guide groove and a guide portion is provided on the cavity wall of the receiving cavity, and the other of the guide groove and the guide portion is provided on the outer side wall of the loudspeaker. At least part of the guide groove extends along the depth direction of the receiving cavity, and the guide portion is inserted into the guide groove.

[0009] In an embodiment of the loudspeaker assembly of the present application, the housing includes:

[0010] An outer shell, an installation cavity is formed inside the outer shell, a spiral guide groove is provided on the cavity wall of the installation cavity, and the outer shell is rotatably arranged; and

[0011] An inner shell, the inner shell is disposed in the installation cavity, a receiving cavity is formed inside the inner shell, and the guide groove is provided on the cavity wall of the receiving cavity, and the guide groove penetrates through to the installation cavity;

[0012] The outer wall of the loudspeaker is convexly provided with the guide portion, and the guide portion passes through the guide groove and is inserted into the spiral guide groove;

[0013] Wherein, when the outer shell rotates, the guiding part slides up and down along the spiral guide groove and the guiding groove to drive the loudspeaker to lift and lower.

[0014] In an embodiment of the loudspeaker assembly of the present application, the protective cover assembly includes:

[0015] A mounting disc, which is arranged on the top of the outer shell and is provided with a through hole opposite to the opening; and

[0016] A plurality of blades, which are arranged on the mounting disc along the circumferential direction of the through hole and can be separated and combined relative to each other to open or close the through hole.

[0017] In an embodiment of the loudspeaker assembly of the present application, a mounting part is convexly provided on the outer side wall of the outer shell close to the opening, the mounting part is arranged around the opening, and one end of each blade is hinged to the mounting part;

[0018] The protective cover assembly further includes a plurality of connecting rods, each connecting rod is correspondingly arranged with a blade, one end of the connecting rod is hinged to the mounting disc, and the other end of the connecting rod is hinged to the blade;

[0019] Wherein, when the outer shell rotates, it drives each blade to rotate along the corresponding connecting rod to open or close the opening.

[0020] In an embodiment of the loudspeaker assembly of the present application, the mounting disc is fixedly connected to the inner shell.

[0021] In an embodiment of the loudspeaker assembly of the present application, a connecting part is convexly provided on the outer bottom wall of the inner shell, the housing further includes a connecting column, the connecting column is arranged between the connecting part and the mounting disc, and both ends of the connecting column are connected to the connecting part and the mounting disc respectively.

[0022] In an embodiment of the loudspeaker assembly of the present application, the height of the spiral guide groove is equal to the lifting height of the loudspeaker, and the spiral angle of the spiral guide groove is equal to the rotation angle of the blade.

[0023] In an embodiment of the loudspeaker assembly of the present application, one of the plurality of connecting rods is defined as a driving connecting rod, the driving connecting rod and the corresponding blade are hinged through a rotating shaft, the mounting disc is provided with a first guide groove, and the rotating shaft moves along the first guide groove when the blade moves;

[0024] The protective cover assembly further includes a connecting disc, the connecting disc is connected to the inner shell and is arranged below the mounting disc and opposite to the mounting disc, the connecting disc is provided with a second guide groove, the second guide groove is opposite to the first guide groove, and the rotating shaft is inserted into the first guide groove and the second guide groove at the same time;

[0025] When the housing drives the plurality of blades to drive the corresponding connecting rods to move, the rotating shaft moves along the second guide groove and the first guide groove, so that the protective cover assembly is opened.

[0026] In an embodiment of the loudspeaker assembly of the present application, the height of the spiral guide groove is equal to the lifting height of the loudspeaker, and the spiral angle α of the spiral guide groove is greater than the rotation angle β of the blade;

[0027] Taking the position where the rotating shaft is located when the protective cover assembly is closed as the first end of the second guide groove, and the position where the rotating shaft is located when the protective cover assembly is opened as the second end of the second guide groove;

[0028] An idle running groove is further formed in the connecting disc. The idle running groove is arranged in a circumferential direction of the connecting disc from the second end. The extending direction of the idle running groove is opposite to the spiral direction of the spiral guide groove, and the central angle θ of the idle running groove satisfies θ≥α-β;

[0029] Wherein, when the housing rotates to make the rotating shaft enter the idle running groove, the rotating shaft pushes the mounting disc to rotate relative to the connecting disc.

[0030] In an embodiment of the loudspeaker assembly of the present application, the loudspeaker assembly further includes:

[0031] A top cover, which is covered on the top of the housing and is provided with an avoidance opening opposite to the opening;

[0032] The protective cover assembly is arranged between the top cover and the mounting disc.

[0033] In an embodiment of the loudspeaker assembly of the present application, one of a limiting post and a limiting groove is formed on the surface of the top cover facing the protective cover assembly, and the other of the limiting post and the limiting groove is formed on the surface of the mounting disc facing the top cover. The limiting groove is arranged in a partial circumferential direction of the top cover, and the limiting post is inserted into the limiting groove.

[0034] In an embodiment of the loudspeaker assembly of the present application, the loudspeaker is rotatably arranged in the accommodating cavity. A first positioning groove extends from the top of the guiding groove to the circumferential direction of the accommodating cavity. After the loudspeaker assembly extends out of the accommodating cavity in place, it can rotate to make the guiding part enter the first positioning groove;

[0035] And / or, a second positioning groove extends from the bottom of the guiding groove to the circumferential direction of the accommodating cavity. After the loudspeaker assembly retracts into the accommodating cavity in place, it can rotate to make the guiding part enter the second positioning groove.

[0036] In an embodiment of the loudspeaker assembly of the present application, the loudspeaker is a dome-shaped loudspeaker.

[0037] The present application also provides a terminal device, including the loudspeaker assembly described in any of the previous items. The loudspeaker assembly includes:

[0038] A housing, within which a receiving cavity is formed, and an opening communicating with the receiving cavity is provided at the top of the housing;

[0039] A loudspeaker, which is disposed in the receiving cavity in a liftable manner, and one end of the loudspeaker where the diaphragm is provided faces the opening; and

[0040] A protective cover assembly, which is disposed at the opening to control the opening and closing of the opening.

[0041] In the loudspeaker assembly of the present invention, the loudspeaker is disposed in the receiving cavity of the housing in a liftable manner, and at least part of the loudspeaker can enter and exit the receiving cavity through the opening of the receiving cavity. Thus, when the loudspeaker is needed, the loudspeaker can be extended out of the receiving cavity to play sound, and when not in use, the loudspeaker can be retracted into the receiving cavity, reducing the risk of damage to the diaphragm of the loudspeaker.

[0042] Furthermore, a protective cover assembly is provided at the opening of the receiving cavity. The protective cover assembly can be opened and closed to open or close the opening of the receiving cavity. With this arrangement, when the loudspeaker is not in use, the opening can be closed through the protective cover assembly to prevent foreign objects from entering the receiving cavity and causing damage to the loudspeaker, further reducing the risk of damage to the diaphragm of the loudspeaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0044] Figure 1 Structural diagram of the first embodiment of the loudspeaker assembly of the present invention in the contracted state;

[0045] Figure 2 For Figure 1 Structural diagram of the loudspeaker assembly during the extension or retraction process;

[0046] Figure 3 For Figure 1 Structural diagram of the loudspeaker assembly in the extended state;

[0047] Figure 4 For Figure 1Exploded view of the middle speaker assembly;

[0048] Figure 5 Structural diagram of the second embodiment of the speaker assembly of the present invention in the contracted state;

[0049] Figure 6 For Figure 5 Structural diagram of the middle speaker assembly during the extension or retraction process;

[0050] Figure 7 For Figure 5 Structural diagram of the middle speaker assembly in the extended state;

[0051] Figure 8 For Figure 5 Exploded view of the middle speaker assembly.

[0052] Explanation of the reference numerals in the drawings:

[0053] Label Name Label Name 100 Speaker assembly 31 Mounting plate 10 Housing 311 Through hole 11 Outer shell 312 First guide groove 111 Mounting cavity 32 Vane 112 Spiral guide groove 33 Link rod 113 Mounting part 331 Active link rod 12 Inner housing 34 Rotating shaft 121 Receiving cavity 35 Connecting plate 122 Guide groove 351 Second guide groove 123 First positioning groove 352 Idle running groove 124 Second positioning groove 36 Limit post 125 Connecting part 37 Connecting post 20 Speaker 40 Top cover 21 Guide part 41 Avoidance opening 30 Protective cover assembly 42 Limit groove

[0054] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0055] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0056] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0057] In the present invention, unless otherwise clearly defined and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0058] In addition, in the present invention, descriptions such as "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. Additionally, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0059] The present invention provides a speaker assembly 100.

[0060] Please refer to Figures 1 to 3 , in some embodiments of the speaker assembly 100 of the present application, the speaker assembly 100 includes:

[0061] A housing 10, an accommodation cavity 121 is formed inside the housing 10, and an opening communicating with the accommodation cavity 121 is provided at the top of the housing 10;

[0062] A speaker 20, the speaker 20 is vertically movable and disposed in the accommodation cavity 121, and the side of the speaker 20 provided with a diaphragm faces the opening; and

[0063] A protective cover assembly 30, the protective cover assembly 30 is disposed at the opening to control the opening and closing of the opening.

[0064] The speaker assembly 100 proposed in the present application includes a housing 10 as an installation base and a sound generating unit speaker 20. An accommodation cavity 121 is formed inside the housing 10, which can be used to place components such as the speaker 20, the main board, and the conductive wire, so that the speaker assembly 100 forms a complete whole. Among them, the shape of the housing 10 can be a cuboid, a cylinder, or other regular or irregular structures. The shape of the accommodation cavity 121 can be set to be similar to the outer contour of the housing 10, or can be correspondingly set based on the structure of the components arranged inside, which is not limited herein.

[0065] The speaker 20 is disposed in the accommodating cavity 121 and can be raised and lowered, so that the speaker 20 can be raised and lowered from the opening of the accommodating cavity 121 and enter and exit the accommodating cavity 121; the speaker 20 can be, but is not limited to, a woofer 20, a midrange speaker 20, a subwoofer 20, a tweeter 20, or a full-range speaker 20, etc., which is not limited here; when the speaker 20 needs to be used to play sound, the speaker 20 can be extended from the accommodating cavity 121. At this time, there is no closed front cavity structure in front of the diaphragm of the speaker 20, which will not affect the sound quality of the speaker 20. When the speaker 20 is not needed, the speaker 20 can be retracted into the accommodating cavity 121 to prevent the speaker 20 from protruding out of the housing 10, thereby reducing the risk of the speaker 20 being damaged by being poked when exposed. Among them, the speaker 20 can be raised and lowered by using a driving part such as a motor or a cylinder, which is connected to the speaker 20 through a transmission structure such as a gear rack, a screw rod or a slider, or by directly connecting the speaker 20 to the cylinder piston rod. Alternatively, an air bag or other structure can be set at the bottom of the accommodating chamber 121, and the speaker 20 can be raised and lowered by filling and deflating air, or a lifting structure as described in the following embodiment can be set. No limitation is made here, and it is only necessary that the speaker 20 can be raised and lowered.

[0066] Furthermore, the speaker assembly 100 also includes a protective cover assembly 30, which is arranged at the opening of the accommodating chamber 121 and is used to control the opening and closing of the opening of the accommodating chamber 121. Specifically, the protective cover assembly 30 includes a plurality of blades 32 arranged along the circumference of the opening, and the size of the central opening of the plurality of blades 32 can be controlled by controlling the clutch of the plurality of blades 32, wherein the clutch of the plurality of blades 32 can be controlled by gear transmission, connecting rod 33 transmission, cam transmission, etc. In this embodiment, by providing the protective cover assembly 30 at the opening of the accommodating chamber 121, the accommodating chamber 121 can be closed when the speaker 20 is retracted into the accommodating chamber 121, so as to prevent foreign matter from entering the accommodating chamber 121 from the opening of the accommodating chamber 121 and causing wear or poking of the speaker 20.

[0067] Therefore, it can be understood that in the speaker assembly 100 of the present invention, the speaker 20 is liftably arranged in the accommodating cavity 121 of the shell 10, and at least a part of the speaker 20 can enter and exit the accommodating cavity 121 from the opening of the accommodating cavity 121, so that when the speaker 20 is needed, the speaker 20 can be extended out of the accommodating cavity 121 to play sound, and the speaker 20 can be retracted into the accommodating cavity 121 when it is not needed, thereby reducing the risk of damage to the speaker 20.

[0068] Further, a protective cover assembly 30 is provided at the opening of the accommodation cavity 121. The protective cover assembly 30 is configured to be openable and closable to open or close the opening of the accommodation cavity 121. With this arrangement, when the speaker 20 is not in use, the opening can be closed by the protective cover assembly 30 to prevent foreign objects from entering the accommodation cavity 121 and damaging the speaker 20, further reducing the risk of damage to the diaphragm of the speaker 20.

[0069] Please refer to the figure. In some embodiments of the speaker assembly 100 of the present application, one of a guiding groove 122 and a guiding portion 21 is provided on the cavity wall of the accommodation cavity 121, and the other of the guiding groove 122 and the guiding portion 21 is provided on the outer sidewall of the speaker 20. At least a part of the guiding groove 122 extends along the depth direction of the accommodation cavity 121, and the guiding portion 21 is inserted into the guiding groove 122.

[0070] It can be understood that by providing a guiding structure composed of the guiding portion 21 and the guiding groove 122 between the outer sidewall of the speaker 20 and the cavity wall of the accommodation cavity 121, the stability of the speaker 20 during lifting and lowering relative to the accommodation cavity 121 can be improved. Among them, the guiding groove 122 extends along the depth direction of the accommodation cavity 121, and the guiding portion 21 is inserted into the guiding groove 122. The two are in a limiting fit to define the lifting path of the speaker 20, and can prevent the speaker 20 from rotating in the accommodation cavity 121 when the accommodation cavity 121 is a cylindrical structure or the volume of the speaker 20 is small, improving the relative position stability of the speaker 20 and the housing 10, and avoiding mutual wear between the diaphragm or other components of the speaker 20 and the cavity wall of the accommodation cavity 121 or the protective cover assembly 30 due to the rotation of the speaker 20.

[0071] In this embodiment, the setting positions of the guiding groove 122 and the guiding portion 21 are not limited. The guiding groove 122 can be formed on the cavity wall of the accommodation cavity 121, and the guiding portion 21 can be correspondingly protruded on the outer sidewall of the speaker 20; alternatively, the guiding groove 122 can be formed on the outer sidewall of the speaker 20, and the guiding portion 21 can be correspondingly protruded on the cavity wall of the accommodation cavity 121; when multiple groups of guiding structures are provided between the outer sidewall of the speaker 20 and the cavity wall of the accommodation cavity 121, the above two structures can also be implemented simultaneously.

[0072] Please refer to Figure 4 , in some embodiments of the speaker assembly 100 of the present application, the housing 10 includes:

[0073] An outer shell 11, an installation cavity 111 is formed inside the outer shell 11, a spiral guiding groove 112 is formed on the cavity wall of the installation cavity 111, and the outer shell 11 is rotatably arranged; and

[0074] The inner shell 12 is disposed in the installation cavity 111. The inner shell 12 is formed with the accommodation cavity 121. The cavity wall of the accommodation cavity 121 is provided with the guide groove 122. The guide groove 122 passes through the installation cavity 111.

[0075] The outer wall of the speaker 20 is provided with the guide portion 21 protruding therefrom, and the guide portion 21 is inserted into the guide groove 122 and inserted into the spiral guide groove 112;

[0076] When the housing 11 rotates, the guide portion 21 slides up and down along the spiral guide groove 112 and the guide groove 122 to drive the speaker 20 to move up and down.

[0077] In this embodiment, the housing 10 includes an outer shell 11 and an inner shell 12 which fit each other. The outer shell 11 and the inner shell 12 are both roughly cylindrical structures. A circular hole-shaped installation cavity 111 is formed in the outer shell 11. The installation cavity 111 is open at least at the top, and a spiral guide groove 112 is provided on the cavity wall of the installation cavity 111; the inner shell 12 is cylindrical, and the aforementioned accommodating cavity 121 is formed in the inner shell 12, and the aforementioned guide groove 122 is provided. The guide groove 122 penetrates the shell wall of the inner shell 12 to The installation cavity 111 and the accommodating cavity 121 are connected. At this time, the guide portion 21 protruding from the outer wall of the speaker 20 passes through the guide groove 122 and is inserted into the spiral guide groove 112. When the outer shell 11 rotates, the groove wall of the spiral guide groove 112 applies force to the guide portion 21 so that the guide portion 21 moves along the spiral guide groove 112. At the same time, the guide portion 21 is limited by the guide groove 122, so that the guide portion 21 moves along the height direction of the accommodating cavity 121, thereby realizing the lifting and lowering of the speaker 20. Specifically, when the rotation direction of the shell 11 is opposite to the rotation direction of the spiral guide groove 112, the guide portion 21 moves upward along the spiral guide groove 112 and the guide groove 122, and the speaker 20 rises to protrude from the accommodating cavity 121; when the rotation direction of the shell 11 is the same as the rotation direction of the spiral guide groove 112, the guide portion 21 moves downward along the spiral guide groove 112 and the guide groove 122, and the speaker 20 descends to retract into the accommodating cavity 121; wherein, the rotation direction of the spiral guide groove 112 refers to the direction in which the spiral guide groove 112 extends from bottom to top when the shell 10 is placed normally.

[0078] It should also be noted that, in the present embodiment, the outer shell 11 can be rotatably arranged, and its rotation mode can be controlled by a drive member such as a motor, or can be manually turned, and no specific limitation is made here; optionally, the outer shell 11 is connected to the motor transmission and controlled by the motor transmission, without manual turning, and can also be controlled by a program, thereby improving the degree of automation and convenience of use.

[0079] Please refer to Figures 1 to 3 In some embodiments of the speaker assembly 100 of the present application, the protective cover assembly 30 includes:

[0080] An installation disk 31, the installation disk 31 is arranged on the top of the housing 11 and is provided with a through hole 311 oppositely arranged with respect to the opening; and

[0081] A plurality of blades 32, the plurality of blades 32 are arranged on the installation disk 31 along the circumferential direction of the through hole 311 and can be relatively disengaged or engaged to open or close the through hole 311.

[0082] It can be understood that the protective cover assembly 30 enables the plurality of blades 32 to be disengaged or engaged with each other to control the size of the central opening of the plurality of blades 32. In this embodiment, the plurality of blades 32 of the protective cover assembly 30 are circumferentially arranged on the installation disk 31 to relatively disengage or engage to open or close the through hole 311 on the installation disk 31. Among them, a plurality of guide grooves can be opened on the installation disk 31, each guide groove is correspondingly arranged with a blade 32, a guide post is protruded on the blade 32, so that the guide post is inserted into the guide groove, and at the same time one end of the blade 32 is rotatably connected to the housing 10. At this time, rotating the installation disk 31 can make the plurality of blades 32 move along a track and disengage or engage with each other; or the blades 32 are substantially triangular in structure, and two sides of the triangle are attached to the sides of two adjacent blades 32. The installation disk 31 and the blades 32 are matched with a guide groove and a guide post, and the guide post is rotatably arranged in the guide groove, so that when the installation disk 31 is rotated, the plurality of blades 32 can move along a track and disengage or engage with each other under the limiting action of the guide groove and the adjacent blades 32; it can also be as in the following embodiment, one end of the blade 32 is hinged to the housing 11, and a connecting rod structure is arranged so that the housing 11 drives the blade 32 to rotate relative to the installation disk 31 to open or close the opening.

[0083] In this embodiment, the plurality of blades 32 are carried on the installation disk 31, which improves the stability of the movement process of the blades 32.

[0084] Please refer to Figure 2 and Figure 4 , in some embodiments of the loudspeaker assembly 100 of the present application, an installation portion 113 is protruded on an outer side wall of the housing 11 close to the opening, the installation portion 113 is arranged around the opening, and one end of each blade 32 is hinged to the installation portion 113;

[0085] The protective cover assembly 30 further includes a plurality of connecting rods 33, each connecting rod 33 is correspondingly arranged with a blade 32, one end of the connecting rod 33 is hinged to the installation disk 31, and the other end of the connecting rod 33 is hinged to the blade 32;

[0086] Wherein, when the housing 11 rotates, it drives each blade 32 to rotate along with the corresponding connecting rod 33 to open or close the opening.

[0087] In this embodiment, one end of the blade 32 is rotatably connected to the mounting portion 113 of the outer shell 11. With this arrangement, the blade 32 can rotate around its connection position with the mounting portion 113, so that when the outer shell 11 rotates, the blade 32 can be driven to move, realizing the mutual separation and engagement of multiple blades 32. The structure is simple and easy to operate. Moreover, only a driving member for driving the outer shell 11 to rotate needs to be provided, and by driving the outer shell 11 to rotate, the lifting of the speaker 20 and the opening and closing of the protective cover assembly 30 can be achieved simultaneously, without the need to additionally provide a driving member to drive the opening and closing of the protective cover assembly 30, reducing the components in the speaker assembly 100 and reducing the volume of the speaker assembly 100.

[0088] Please refer to Figures 1 to 3 , in some embodiments of the speaker assembly 100 of the present application, the mounting disk 31 is fixedly connected to the inner shell 12.

[0089] In this embodiment, the mounting disk 31 and the inner shell 12 are connected to each other so that the mounting disk 31 maintains a fixed position. At this time, one end of the connecting rod 33 is hinged to the mounting disk 31 to maintain a fixed position, so that when the outer shell 11 rotates, the blade 32 can be driven to move relative to the mounting disk 31, realizing the mutual separation and engagement of multiple blades 32, and improving the relative position stability between the protective cover assembly 30 and the housing 10. The structure is simple and easy to operate.

[0090] It should be noted that in this embodiment, although the lifting of the speaker 20 and the opening and closing of the protective cover assembly 30 are both controlled by rotating the outer shell 11, the lifting of the speaker 20 and the opening and closing of the protective cover assembly 30 can be synchronized or not synchronized. For example, the speaker 20 can be lifted outwards near the opening after the protective cover assembly 30 is fully opened, or the speaker 20 can be lifted out synchronously during the opening process of the protective cover assembly 30. For the specific structure, please refer to the following embodiments and will not be elaborated here.

[0091] It should also be noted that the connection method between the mounting disk 31 and the inner shell 12 can be such that the mounting disk 31 is sleeved on the inner shell 12 and connected by means of bonding, welding or snap connection, etc., or can also be connected in the way of setting the connecting column 37 as in the following embodiments, which is not limited herein.

[0092] Please refer to Figures 1 to 3 , in some embodiments of the speaker assembly 100 of the present application, a connecting portion 125 protrudes from the bottom outer wall of the inner shell 12, and the housing 10 further includes a connecting column 37. The connecting column 37 is disposed between the connecting portion 125 and the mounting disk 31, and both ends of the connecting column 37 are connected to the connecting portion 125 and the mounting disk 31 respectively.

[0093] In this embodiment, a connecting portion 125 is convexly provided on the outer wall of the bottom of the inner shell 12. The connecting portion 125 is disposed opposite to the mounting plate 31, and the connecting portion 125 and the mounting plate 31 are fixedly connected by a connecting column 37. At this time, the arrangement of the connecting column 37 can provide support for the mounting plate 31, thereby improving the structural stability of the mounting plate 31. Optionally, at least two connecting columns 37 can be provided to support symmetrically at different positions of the mounting plate 31, further improving the structural stability. In addition, the connecting column 37 and the mounting plate 31 and the inner shell 12 can be integrally formed or can be connected and fixed after being formed separately, which is not limited herein.

[0094] Please refer to Figure 4 , in some embodiments of the loudspeaker assembly 100 of the present application, the height of the spiral guide groove 112 is equal to the lifting height of the loudspeaker 20, and the spiral angle of the spiral guide groove 112 is equal to the rotation angle of the blade 32.

[0095] In this embodiment, the height of the spiral guide groove 112 is equal to the lifting height of the loudspeaker 20, and the spiral angle of the spiral guide groove 112 is the same as the rotation angle of the blade 32. With such an arrangement, when the outer shell 11 is rotated, the guiding portion 21 and the loudspeaker 20 are lifted and lowered along the spiral guide groove 112 and the guiding groove 122, and at the same time, the plurality of blades 32 of the protective cover assembly 30 rotate and disengage from each other. When the guiding portion 21 and the loudspeaker 20 are lifted and lowered along the spiral guide groove 112 to the position, the protective cover assembly 30 is just completely opened or completely closed, that is, the lifting process of the loudspeaker 20 and the opening process of the protective cover assembly 30 are completely synchronized, which can reduce the time during the switching process between the use state and the retracted state of the loudspeaker assembly 100, speed up the switching speed, without waiting for the protective cover assembly 30 to be completely opened before lifting the loudspeaker 20, nor waiting for the loudspeaker 20 to be completely retracted before closing the protective cover assembly 30, improving the response speed of the loudspeaker assembly 100 and improving the user experience.

[0096] With reference to Figures 5 to 8 , in some embodiments of the loudspeaker assembly 100 of the present application, one of the plurality of connecting rods 33 is defined as the active connecting rod 331. The active connecting rod 331 and the corresponding blade 32 are hinged by a rotating shaft 34. The mounting plate 31 is provided with a first guide groove 312, and the rotating shaft 34 moves along the first guide groove 312 when the blade 32 moves;

[0097] The protective cover assembly 30 further includes a connecting plate 35. The connecting plate 35 is connected to the inner shell 12 and is disposed below the mounting plate 31 and opposite to the mounting plate 31. The connecting plate 35 is provided with a second guide groove 351. The second guide groove 351 is disposed opposite to the first guide groove 312, and the rotating shaft 34 is inserted into the first guide groove 312 and the second guide groove 351 at the same time;

[0098] When the housing 11 drives a plurality of the blades 32 to drive the corresponding connecting rods 33 to move, the rotating shaft 34 moves along the second guide groove 351 and the first guide groove 312, so that the protective cover assembly 30 is opened.

[0099] In this embodiment, one of the plurality of connecting rods 33 of the protective cover assembly 30 is defined as the active connecting rod 331. The active connecting rod 331 is hinged to the corresponding blade 32 driven by it through a rotating shaft 34, and the rotating shaft 34 is extended and inserted into the first guide groove 312 of the mounting plate 31. At the same time, a connecting plate 35 is provided in the protective cover assembly 30. The connecting plate 35 is arranged below the mounting plate 31, and a second guide groove 351 is formed in the connecting plate 35 corresponding to the first guide groove 312. The rotating shaft 34 is inserted into the second guide groove 351. Further, the connecting plate 35 is connected to the inner housing 12. With such a setting, when the housing 11 rotates, it will drive a plurality of the blades 32 to drive the corresponding connecting rods 33 to move and make the protective cover assembly 30 open, and the rotating shaft 34 on the active connecting rod 331 will slide along the second guide groove 351 and the first guide groove 312. At this time, when the housing 11 rotates, it also drives the speaker 20 to move up and down. There is no need to separately set a driving structure or separately drive the opening and closing of the protective cover assembly 30 and the up and down movement of the speaker 20, which simplifies the structure of the speaker assembly 100 and is convenient for driving control.

[0100] It should be noted that in this embodiment, the up and down movement of the speaker 20 can be synchronized with the separation and combination of the blades 32, that is, when the speaker 20 moves up and down in place, the protective cover assembly 30 is completely opened or completely closed at the same time. It can also be implemented as in the following embodiment that after the protective cover assembly 30 is opened by setting structures such as an idle groove 352, the speaker 20 extends out of the opening, and after the speaker 20 completely enters the accommodation cavity 121, the protective cover assembly 30 is driven to close, which will not be elaborated here.

[0101] Please refer to Figure 8 , in some embodiments of the speaker assembly 100 of the present application, the height of the spiral guide groove 112 is equal to the up and down movement height of the speaker 20, and the spiral angle α of the spiral guide groove 112 is greater than the rotation angle β of the blade 32;

[0102] Taking the position where the rotating shaft 34 is located when the protective cover assembly 30 is closed as the first end of the second guide groove 351, and the position where the rotating shaft 34 is located when the protective cover assembly 30 is opened as the second end of the second guide groove 351;

[0103] An idle groove 352 is further formed on the connecting disc 35. The idle groove 352 is arranged in a circumferential direction of the connecting disc 35 starting from the second end. An extending direction of the idle groove 352 is opposite to a helix direction of the spiral guide groove 112, and a central angle θ of the idle groove 352 satisfies θ≥α-β;

[0104] Wherein, the housing 11 rotates to enable the rotating shaft 34 to enter the idle groove 352, and the rotating shaft 34 pushes the mounting disc 31 to rotate relative to the connecting disc 35.

[0105] In this embodiment, the height of the spiral guide groove 112 is made equal to the lifting height of the speaker 20, but at the same time, the spiral angle of the spiral guide groove 112 is made larger than the rotation angle of the blade 32; with such a setting, when the housing 11 is rotated to raise the speaker 20 and drive the protective cover assembly 30 to open, after the protective cover assembly 30 is fully opened, there is still room for the guiding portion 21 and the speaker 20 to rise. However, if the housing 11 is rotated continuously, the blade 32 will rotate back or be limited by the protective cover assembly 30, resulting in the inability to rotate the housing 11. Further, in this embodiment, an idle rotation groove 352 is formed in the connection disk 35. Specifically, when the housing 11 is rotated, it will drive the plurality of blades 32 to drive the corresponding connecting rods 33 to move and open the protective cover assembly 30. At the same time, the rotating shaft 34 on the active connecting rod 331 will slide along the second guide groove 351 and the first guide groove 312. At this time, taking the position where the rotating shaft 34 is located when the protective cover assembly 30 is closed as the first end of the second guide groove 351, and the position where the rotating shaft 34 is located when the protective cover assembly 30 is opened as the second end of the second guide groove 351, the idle rotation groove 352 extends from the second end of the second guide groove 351 in the direction opposite to the spiral direction of the spiral guide groove 112, and satisfies θ≥α-β among the central angle θ of the idle rotation groove 352, the spiral angle α of the spiral guide groove 112, and the rotation angle β of the blade 32; with such a setting, since the extending direction of the idle rotation groove 352 is the same as the rotation direction when the housing 11 drives the speaker 20 to rise, after the protective cover assembly 30 is fully opened, when the housing 11 is rotated continuously to raise the speaker 20, the rotating shaft 34 can move along the idle rotation groove 352. At this time, since the rotating shaft 34 is inserted into the first guide groove 312 of the mounting disk 31, the rotating shaft 34 will simultaneously push the mounting disk 31 to rotate, so that the mounting disk 31 and the blade 32 rotate synchronously with the housing 11, avoiding the driving of the blade 32 to move relative to the mounting disk 31 during the continuous rotation of the housing 11. Correspondingly, when the housing 11 is rotated in the reverse direction, the rotating shaft 34 will move in the idle rotation groove 352, and since the first guide groove 312 and the idle rotation groove 352 are arranged at an angle, the rotating shaft 34 will simultaneously push the mounting disk 31 to rotate, so that the protective cover assembly 30 remains open at this time, but the guiding portion 21 and the speaker 20 will descend along the spiral guide groove 112 and the guiding groove 122. When the rotating shaft 34 enters the second guide groove 351, the rotating shaft 34 will move along the second guide groove 351 and the first guide groove 312 to drive the blade 32 to rotate relative to the mounting disk 31, so that the protective cover assembly 30 is gradually closed.

[0106] With such a setting, the speaker 20 can be lifted after the protective cover assembly 30 is fully opened, and the protective cover assembly 30 can be closed after the speaker 20 is fully retracted, avoiding mutual interference between the speaker 20 and the protective cover assembly 30 during the movement process and improving the use safety of the speaker assembly 100.

[0107] Please refer to Figures 5 to 7, in some embodiments of the loudspeaker assembly 100 of the present application, the loudspeaker assembly 100 further includes:

[0108] A top cover 40, which is covered on the top of the housing 10 and is provided with an avoidance opening 41 opposite to the opening;

[0109] The protective cover assembly 30 is arranged between the top cover 40 and the mounting plate 31.

[0110] In this embodiment, a top cover 40 is provided on the loudspeaker assembly 100. The top cover 40 is covered on the top of the housing 10 and is located above the protective cover assembly 30. Such an arrangement can shield the protective cover assembly 30 through the top cover 40, play a protective role for the protective cover assembly 30, prevent foreign objects from touching the protective cover assembly 30 and causing damage to the protective cover assembly 30, and also prevent the blade 32 from moving due to external force and becoming loose, thereby destroying the structural stability of the loudspeaker assembly 100.

[0111] Please refer to Figures 5 to 7 , in some embodiments of the loudspeaker assembly 100 of the present application, one of a limiting post 36 and a limiting groove 42 is provided on the surface of the top cover 40 facing the protective cover assembly 30, and the other of the limiting post 36 and the limiting groove 42 is provided on the surface of the mounting plate 31 facing the top cover 40. The limiting groove 42 is arranged along a part of the circumference of the top cover 40, and the limiting post 36 is inserted into the limiting groove 42.

[0112] In this embodiment, a limiting structure composed of the limiting post 36 and the limiting groove 42 is provided between the top cover 40 and the protective cover assembly 30. Such an arrangement can improve the stability of the mounting plate 31 during the rotation process relative to the housing 10 and the top cover 40. Among them, the limiting groove 42 extends along the circumference of the mounting plate 31, and the limiting part is inserted into the limiting groove 42. The two limit and cooperate to define the rotation path and rotation distance of the mounting plate 31, prevent the mounting plate 31 from rotating excessively and causing the protective cover assembly 30 to close in the reverse direction and collide with the loudspeaker 20, and improve the use safety of the loudspeaker assembly 100.

[0113] In some embodiments, the limiting post 36 can be the hinge shaft between the connecting rod 33 and the mounting plate 31, and a corresponding number of limiting grooves 42 are provided, so that each hinge shaft is inserted into a limiting groove 42 as a limiting post 36.

[0114] Please refer to Figure 4, in some embodiments of the loudspeaker assembly 100 of the present application, the loudspeaker 20 is rotatably disposed in the accommodation cavity 121. A first positioning groove 123 extends from the top of the guiding groove 122 in the circumferential direction of the accommodation cavity 121. After the loudspeaker assembly 100 extends out of the accommodation cavity 121 in place, it can be rotated so that the guiding portion 21 enters the first positioning groove 123;

[0115] And / or, a second positioning groove 124 extends from the bottom of the guiding groove 122 in the circumferential direction of the accommodation cavity 121. After the loudspeaker assembly 100 retracts into the accommodation cavity 121 in place, it can be rotated so that the guiding portion 21 enters the second positioning groove 124.

[0116] It can be understood that when the loudspeaker 20 is lifted and lowered in the accommodation cavity 121, being limited and guided by the guiding portion 21 and the guiding groove 122 can improve the stability of the movement process of the loudspeaker 20. In this embodiment, a first positioning groove 123 is further extended from the top of the guiding groove 122 in the circumferential direction of the accommodation cavity 121. At this time, after the loudspeaker 20 rises in place, the loudspeaker 20 or the housing 10 can be rotated so that the guiding portion 21 enters the first positioning groove 123. With such a setting, the guiding portion 21 can be limited by the first positioning groove 123 to prevent the guiding portion 21 and the loudspeaker 20 from falling back, thereby improving the position stability of the loudspeaker 20 in the working state. Among them, the limitation of the top of the guiding groove 122 can be the top end of the guiding groove 122 or the side portion at a certain distance from the top end of the guiding groove 122, which is not limited herein.

[0117] In some embodiments, the housing 10 includes an outer housing 11 and an inner housing 12, and is provided with a structure of a spiral guiding groove 112 for driving the guiding portion 21 and the loudspeaker 20 to lift and lower. At this time, the extending direction of the first positioning groove 123 can be opposite to the spiral direction of the spiral guiding groove 112, so that after rotating the outer housing 11 to make the guiding portion 21 rise in place, the outer housing 11 can be continuously rotated to make the guiding portion 21 enter the first positioning groove 123, improving the operation convenience.

[0118] Similarly, in some embodiments, a second positioning groove 124 extends along the circumferential direction of the solute cavity at the bottom of the guiding groove 122. At this time, after the loudspeaker 20 retracts in place, the loudspeaker 20 or the housing 10 can be rotated so that the guiding portion 21 enters the second positioning groove 124. With such a setting, the guiding portion 21 can be limited by the second positioning groove 124 to prevent the guiding portion 21 and the loudspeaker 20 from rising due to external forces such as vibration, resulting in the collision between the loudspeaker 20 and the protective cover assembly 30, improving the position stability and use safety of the loudspeaker 20 in the retracted state. At this time, the limitation of the bottom of the guiding groove 122 can be the bottom end of the guiding groove 122 or the side portion at a certain distance from the bottom end of the guiding groove 122, which is not limited herein.

[0119] In some embodiments, the housing 10 includes an outer housing 11 and an inner housing 12, and is provided with a structure of a spiral guide groove 112 for driving the lifting of the guiding portion 21 and the speaker 20. At this time, the extending direction of the second positioning groove 124 can be the same as the spiral direction of the spiral guide groove 112, so that after rotating the outer housing 11 to lower the guiding portion 21 in place, the outer housing 11 can be continuously rotated to make the guiding portion 21 enter the second positioning groove 124, improving the operation convenience.

[0120] Please refer to Figure 3 , in some embodiments of the speaker assembly 100 of the present application, the speaker 20 is a dome-shaped speaker 20.

[0121] In this embodiment, the speaker 20 is a dome-shaped speaker 20, and its diaphragm bulges upward and is generally spherical. The dome-shaped speaker 20 has excellent mid-high frequency response and wide directivity, and also has advantages such as good transient characteristics, small distortion and good sound quality.

[0122] The present application also proposes a terminal device, including the speaker assembly 100 described in any one of the foregoing items. The speaker assembly 100 includes:

[0123] A housing 10, an accommodation cavity 121 is formed inside the housing 10, and an opening communicating with the accommodation cavity 121 is opened at the top of the housing 10;

[0124] A speaker 20, the speaker 20 is liftably arranged in the accommodation cavity 121; and

[0125] A protective cover assembly 30, the protective cover assembly 30 is arranged at the opening to control the opening and closing of the opening.

[0126] In the terminal device proposed by the present application, the speaker assembly 100 of the foregoing embodiment is applied. Among them, the speaker assembly 100 at least includes a housing 10 as an installation base and a speaker 20 as a sound generating unit. An accommodation cavity 121 is formed inside the housing 10, which can be used to place components such as the speaker 20, the main board, and the conducting wire, so that the speaker assembly 100 forms a complete whole. Among them, the shape of the housing 10 can be a cuboid, a cylinder or other regular or irregular structures. The shape of the accommodation cavity 121 can be set to be similar to the outer contour of the housing 10, or can be correspondingly set based on the structure of the components arranged inside, which is not limited herein.

[0127] The speaker 20 is disposed in the accommodating cavity 121 and can be raised and lowered, so that the speaker 20 can be raised and lowered from the opening of the accommodating cavity 121 and enter and exit the accommodating cavity 121; the speaker 20 can be, but is not limited to, a woofer 20, a midrange speaker 20, a subwoofer 20, a tweeter 20, or a full-range speaker 20, etc., which is not limited here; when the speaker 20 needs to be used to play sound, the speaker 20 can be extended from the accommodating cavity 121. At this time, there is no closed front cavity structure in front of the diaphragm of the speaker 20, which will not affect the sound quality of the speaker 20. When the speaker 20 is not needed, the speaker 20 can be retracted into the accommodating cavity 121 to prevent the speaker 20 from protruding out of the housing 10, thereby reducing the risk of the speaker 20 being damaged by being poked when exposed. Among them, the speaker 20 can be raised and lowered by using a driving part such as a motor or a cylinder, which is connected to the speaker 20 through a transmission structure such as a gear rack, a screw rod or a slider, or by directly connecting the speaker 20 to a cylinder piston cylinder. Alternatively, an air bag or other structure can be set at the bottom of the accommodating chamber 121, and the speaker 20 can be raised and lowered by charging and discharging air, or a lifting structure as described in the following embodiment can be set. No limitation is made here, and it is only necessary that the speaker 20 can be raised and lowered.

[0128] Furthermore, the speaker assembly 100 also includes a protective cover assembly 30, which is arranged at the opening of the accommodating chamber 121 and is used to control the opening and closing of the opening of the accommodating chamber 121. Specifically, the protective cover assembly 30 includes a plurality of blades 32 arranged along the circumference of the opening, and the size of the central opening of the plurality of blades 32 can be controlled by controlling the clutch of the plurality of blades 32, wherein the clutch of the plurality of blades 32 can be controlled by gear transmission, connecting rod 33 transmission, cam transmission, etc. In this embodiment, by providing the protective cover assembly 30 at the opening of the accommodating chamber 121, the accommodating chamber 121 can be closed when the speaker 20 is retracted into the accommodating chamber 121, so as to prevent foreign matter from entering the accommodating chamber 121 from the opening of the accommodating chamber 121 and causing wear or poking of the speaker 20.

[0129] Therefore, it can be understood that in the speaker assembly 100 of the present invention, the speaker 20 is liftably arranged in the accommodating cavity 121 of the shell 10, and at least a part of the speaker 20 can enter and exit the accommodating cavity 121 from the opening of the accommodating cavity 121, so that when the speaker 20 is needed, the speaker 20 can be extended out of the accommodating cavity 121 to play sound, and the speaker 20 can be retracted into the accommodating cavity 121 when it is not needed, thereby reducing the risk of damage to the speaker 20.

[0130] Further, a protective cover assembly 30 is provided at the opening of the accommodation cavity 121. The protective cover assembly 30 is configured to be openable and closable to open or close the opening of the accommodation cavity 121. With this arrangement, when the speaker 20 is not in use, the opening can be closed through the protective cover assembly 30 to prevent foreign objects from entering the accommodation cavity 121 and damaging the speaker 20, further reducing the risk of damage to the diaphragm of the speaker 20.

[0131] The terminal device proposed in this application can be, but is not limited to, mobile phones, tablet computers, televisions, monitors, laptop computers, digital photo frames, personal digital assistants (PDAs), e-book readers, MP3 (Moving Picture Experts Group Audio Layer III) players, MP4 (Moving Picture Experts Group Audio Layer IV) players, wearable devices, navigators, handheld game consoles, virtual reality devices, augmented reality devices, desktop speakers, automobiles, etc. Since the terminal device proposed in this application applies all the technical solutions of the foregoing embodiments, it has at least all the beneficial effects brought by the foregoing all technical solutions, which will not be elaborated herein one by one.

[0132] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A loudspeaker assembly, characterized in that, Comprising: A housing, an accommodation cavity is formed inside the housing, and an opening communicating with the accommodation cavity is provided at the top of the housing; A loudspeaker, the loudspeaker is disposed in the accommodation cavity in a liftable manner, and one end of the loudspeaker provided with a diaphragm faces the opening; and, A protective cover assembly, the protective cover assembly is disposed at the opening to control the opening and closing of the opening, and the protective cover assembly includes blades; One of a guide groove and a guide portion is provided on the cavity wall of the accommodation cavity, and the other of the guide groove and the guide portion is provided on the outer side wall of the loudspeaker; the guide portion is inserted into the guide groove; The protective cover assembly is connected to the housing; At least a part of the housing is rotatable, a spiral guide groove is provided in the rotatable part of the housing for the guide portion to pass through, and the height of the spiral guide groove is equal to the lifting height of the loudspeaker; the blades are connected to the rotatable part of the housing, and the two have a relatively fixed position. When at least a part of the housing rotates, the blades rotate accordingly to open or close the opening, and the spiral angle of the spiral guide groove is the same as the rotation angle of the blades; when the housing rotates, the loudspeaker lifts under the action of the guide portion, the spiral guide groove and the guide groove, and when the housing rotates, the opening and closing of the protective cover assembly can be controlled; Wherein, the lifting of the loudspeaker and the opening and closing of the protective cover assembly are synchronously realized.

2. The loudspeaker assembly according to claim 1, characterized in that At least a part of the guide groove extends along the depth direction of the accommodation cavity.

3. The loudspeaker assembly according to claim 2, wherein, The housing includes: An outer shell, an installation cavity is formed inside the outer shell, a spiral guide groove is provided on the cavity wall of the installation cavity, and the outer shell is rotatably arranged; and, An inner shell, the inner shell is disposed in the installation cavity, an accommodation cavity is formed inside the inner shell, a guide groove is provided on the cavity wall of the accommodation cavity, and the guide groove penetrates through to the installation cavity; The outer wall of the loudspeaker protrudes with the guide portion, and the guide portion passes through the guide groove and is inserted into the spiral guide groove; Wherein, when the outer shell rotates, the guide portion slides up and down along the spiral guide groove and the guide groove to drive the loudspeaker to lift.

4. The loudspeaker assembly according to claim 3, wherein, The protective cover assembly includes: A mounting disc, the mounting disc is disposed on the top of the outer shell and is provided with a through hole opposite to the opening; and, A plurality of blades, the plurality of blades are arranged circumferentially along the through hole on the mounting disc and can be relatively separated and combined to open or close the through hole.

5. The loudspeaker assembly according to claim 4, wherein, A mounting portion protrudes from the outer side wall of the outer shell near the opening, the mounting portion is arranged around the opening, and one end of each blade is hinged to the mounting portion; The protective cover assembly further includes a plurality of connecting rods, each connecting rod corresponds to one blade, one end of the connecting rod is hinged to the mounting disc, and the other end of the connecting rod is hinged to the blade; Wherein, when the outer shell rotates, each blade is driven to rotate along with the corresponding connecting rod to open or close the opening.

6. The loudspeaker assembly according to claim 5, wherein The mounting disc is fixedly connected to the inner shell.

7. The loudspeaker assembly according to claim 6, characterized in that, A connecting portion protrudes from the bottom outer wall of the inner shell, the housing further includes a connecting column, the connecting column is disposed between the connecting portion and the mounting disc, and two ends of the connecting column are respectively connected to the connecting portion and the mounting disc.

8. The loudspeaker assembly according to claim 5, characterized in that, Define one of the multiple linkages as the driving linkage, which is hinged to the corresponding blade through a rotating shaft. The mounting disc is provided with a first guide groove, and when the blade moves, the rotating shaft moves along the first guide groove; The protective cover assembly further includes a connecting disc, which is connected to the inner shell and is arranged below the mounting disc and opposite to the mounting disc. The connecting disc is provided with a second guide groove, which is arranged opposite to the first guide groove, and the rotating shaft is inserted into the first guide groove and the second guide groove at the same time; Wherein, when the outer shell drives the multiple blades to drive the corresponding linkages to move, the rotating shaft moves along the second guide groove and the first guide groove, so that the protective cover assembly is opened.

9. The loudspeaker assembly according to claim 8, wherein The height of the spiral guide groove is equal to the lifting height of the speaker, and the spiral angle α of the spiral guide groove is greater than the rotation angle β of the blade; Taking the position where the rotating shaft is located when the protective cover assembly is closed as the first end of the second guide groove, and the position where the rotating shaft is located when the protective cover assembly is opened as the second end of the second guide groove; The connecting disc is further provided with an idle running groove, which is arranged circumferentially around the connecting disc from the second end. The extending direction of the idle running groove is opposite to the spiral direction of the spiral guide groove, and the central angle θ of the idle running groove satisfies θ≥α-β; Wherein, when the outer shell rotates to make the rotating shaft enter the idle running groove, the rotating shaft pushes the mounting disc to rotate relative to the connecting disc.

10. The loudspeaker assembly according to claim 5, characterized in that, The speaker assembly further includes: A top cover, which covers the top of the housing and is provided with an avoidance opening opposite to the opening; The protective cover assembly is arranged between the top cover and the mounting disc.

11. The loudspeaker assembly according to claim 10, characterized in that, One of a limiting post and a limiting groove is provided on the surface of the top cover facing the protective cover assembly, and the other of the limiting post and the limiting groove is provided on the surface of the mounting disc facing the top cover. The limiting groove is arranged circumferentially around a part of the top cover, and the limiting post is inserted into the limiting groove.

12. The loudspeaker assembly according to claim 2, wherein, The speaker is rotatably arranged in the accommodating cavity. A first positioning groove extends from the top of the guiding groove to the circumference of the accommodating cavity. After the speaker assembly extends out of the accommodating cavity in place, it can rotate to make the guiding part enter the first positioning groove; And / or, a second positioning groove extends from the bottom of the guiding groove to the circumference of the accommodating cavity. After the speaker assembly retracts into the accommodating cavity in place, it can rotate to make the guiding part enter the second positioning groove.

13. The loudspeaker assembly according to any one of claims 1 to 12, characterized in that, The speaker is a dome-shaped speaker.

14. A terminal device, characterized in that, The terminal device includes the speaker assembly according to any one of claims 1 to 12.

Images