Vehicle-mounted lifting sound box

Abstract

A vehicle-mounted lifting loudspeaker box assembly comprises a base, a motor, a loudspeaker and a lifting seat. The base is provided with a guide wall extending upwards. The motor is installed at the bottom of the base. The lifting seat sleeves the base and is spirally matched with the guide wall of the base to realize lifting, and a mounting space for mounting a loudspeaker is formed between the lifting seat and the base; an inner gear ring is arranged on the lifting seat, and the output end of the motor is connected with the inner gear ring through a gear and used for driving the inner gear ring to rotate through the gear so that the lifting seat can rotationally ascend and descend relative to the base guide wall. The motor can be arranged in the center close to the central axis of the loudspeaker as much as possible, the size of the part, protruding out of the periphery of the loudspeaker, of the motor is reduced, then the overall transverse size of the loudspeaker box is reduced, and the external shape of the loudspeaker box tends to be regular so as to adapt to the space, used for installing the loudspeaker box, on a vehicle interior trim part. Therefore, the sound box can be well arranged in the vehicle.

Description

Technical Field

[0001] The utility model relates to the technical field of sound boxes, in particular to a vehicle-mounted lifting sound box. Background Art

[0002] As people's living standards continue to improve, higher requirements are placed on the performance of speakers. For example, some car speakers are usually equipped with more functions in the hope of enhancing the driving pleasure while increasing the luxury and comfort of the vehicle.

[0003] In the traditional speaker structure, the distance between the speaker and the speaker cover is fixed, which means that the size of the front sound cavity formed between the speaker sound output surface and the speaker cover remains fixed. In order to improve the sound quality of the speaker, especially the sound quality of the tweeter in the car speaker, some vehicles have begun to be equipped with speakers with a lifting function. Specifically, the speaker cover is driven to rise and fall through a driving device to change the size of the front sound cavity, expand the volume of the front sound cavity and improve the sound quality of the speaker. In addition, the liftable speaker structure can also help to enhance the sense of luxury of the vehicle interior.

[0004] Since the vehicle-mounted system itself is relatively complex and the decoration space in the car is very limited, in the existing lifting speakers, a movable part that can move relative to the speaker in the height direction is usually set inside the speaker, and the driving device drives the movable part to rotate, and the lifting guide mechanism inside the speaker converts the rotation of the movable part into the up and down movement of the movable part, so that the speaker cover installed on the movable part moves up and down, but the structure is too complicated and the cost is high. For example, the prior art discloses such a vehicle-mounted lifting speaker structure, which uses a motor as a driving device, a first driving tooth is arranged on the rotating shaft of the motor, and a second driving tooth is arranged on the outer peripheral surface of the driving sleeve as the movable part, the first driving tooth is located on the side of the second driving tooth and meshes with the second driving tooth, and the motor is arranged on the periphery of the lifting sleeve, so that the position where the motor is arranged is far away from the central axis of the speaker, resulting in a large lateral size of the speaker, the internal space of the speaker cannot be fully utilized, the motor protrudes more from the periphery of the speaker, and the overall external shape of the speaker is irregular. When used as a vehicle-mounted device, the larger volume of the speaker and the irregular external shape are not conducive to the better arrangement of the speaker inside the vehicle. Utility Model Content

[0005] In view of the deficiencies of the prior art, the purpose of the present utility model is to provide a vehicle-mounted liftable speaker which is small in size, simpler in structure, lower in cost and easy to arrange inside a vehicle.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A vehicle-mounted lifting speaker assembly, comprising a base, a motor, a speaker and a lifting seat;

[0008] The base has a guide wall extending upward, and the motor is installed at the bottom of the base; the lifting seat is arranged on the base and spirally cooperates with the guide wall of the base to achieve lifting, and an installation space for installing the speaker is formed between the lifting seat and the base;

[0009] An inner gear ring is arranged on the lifting seat, and the output end of the motor is connected with the inner gear ring through a gear, and is used to drive the inner gear ring to rotate through the gear so that the lifting seat can rotate and rise relative to the guide wall of the base.

[0010] Preferably, a guide groove is provided on one of the lifting seat and the base guide wall, and a guide piece is provided on the other, the guide groove extends along a cylindrical spiral track, and the guide piece is slidably embedded in the guide groove so that the lifting seat and the base guide wall can be spirally matched to achieve lifting.

[0011] Preferably, the base includes a retaining wall located below the base guide wall and extending downward, the base retaining wall enclosing a motor cavity, the projection of the base retaining wall on the cross section of the inner gear ring falls inside the inner gear ring so that the inner gear ring can surround the periphery of the base retaining wall when the lifting base descends, and a notch is provided on the base retaining wall, and the edge of the gear passes through the notch and meshes with the inner gear ring at the inner edge of the inner gear ring.

[0012] Preferably, a bottom cover is detachably fixed to the bottom of the base retaining wall and covers the bottom of the motor cavity.

[0013] Preferably, a motor cavity is formed at the lower portion of the base, and the transverse dimension of the motor cavity is greater than its vertical dimension so that the motor is laterally placed in the motor cavity.

[0014] Preferably, a projection of the motor on the cross section of the inner gear ring falls inside the inner gear ring.

[0015] Preferably, the motor output end converts the torque through a gear set or a reducer to connect the gear to the inner gear ring.

[0016] Preferably, the speaker is fixed on the guide wall of the base, the lifting seat includes a cylindrical peripheral wall which is sleeved on the periphery of the guide wall of the base, and the sound output surface of the speaker and the peripheral wall of the lifting seat together form a front sound cavity with variable space.

[0017] Preferably, the base guide wall is hollow cylindrical, the speaker is fixed in the base guide wall, the inner cavity of the base guide wall located below the bottom surface of the speaker forms a rear sound cavity, a partition is provided on the base at the bottom end of the base guide wall to cover the bottom of the rear sound cavity, and a motor cavity for installing a motor is formed on the part of the base located below the partition, and the partition is placed between the rear sound cavity and the motor cavity to isolate the sound transmission between the two.

[0018] Preferably, the lifting seat includes a peripheral wall which is cylindrical and sleeved on the periphery of the guide wall of the base, and the speaker is fixed in the peripheral wall of the lifting seat and rises and falls together with the lifting seat.

[0019] Preferably, it also includes a speaker cover fixed on the lifting seat and located at the top of the installation space, and the speaker cover is densely covered with a plurality of sound outlet holes.

[0020] Preferably, a movable ring is sleeved on the guide wall of the base, a guide flange is provided on the movable ring, the lifting seat includes a cylindrical peripheral wall sleeved on the outer periphery of the guide wall of the base, a guide groove extending in a cylindrical spiral trajectory and cooperating with the guide flange is provided on the inner side of the peripheral wall of the lifting seat, a linear guide mechanism is provided between the movable ring and the guide wall of the base so that the movable ring has the freedom to move in the extension direction of the guide wall of the base, and an elastic member is provided between the base and the movable ring to apply upward elastic stress to the movable ring.

[0021] Preferably, the linear guide mechanism includes a linear guide groove provided on the outer surface of the base guide wall and extending in the same direction as the base guide wall, and a sliding protrusion provided on the inner edge of the movable ring and slidably embedded in the linear guide groove.

[0022] Preferably, the top of the guide wall of the base is detachably fixedly connected with a fixing ring which is pressed on the movable ring to limit the upward movement of the movable ring.

[0023] Preferably, the fixing ring is fixedly connected to the top of the base guide wall in a snap-fitting manner, a speaker support surface is arranged on the base guide wall, a plurality of inwardly extending pressure blocks are arranged on the inner edge of the fixing ring, and the edge of the speaker is clamped between the plurality of pressure blocks and the speaker support surface to fix the speaker on the base guide wall.

[0024] Preferably, the top surface of the base guide wall is provided with a plurality of extension walls extending upward, a top opening is formed between adjacent extension walls and an avoidance groove for accommodating the pressure block, and the outer side surface of each extension wall is provided with a snap-fitting boss protruding outward, and the inner edge of the fixing ring is provided with a plurality of protrusions corresponding to the snap-fitting bosses, and the protrusions are respectively clamped and fixed between the corresponding snap-fitting bosses and the top surface of the base guide wall; the outer surface of the extension wall is provided with a buckle groove, and the inner edge of the fixing ring is provided with a buckle groove matching the buckle groove; the pressure block can be embedded in the avoidance groove from top to bottom and can move from one side of the avoidance groove to the other side of the avoidance groove as the fixing ring rotates relative to the base guide wall, and when the pressure block slides to the other side of the avoidance groove, the buckle boss is clamped in the buckle groove to cooperate with the buckle groove to form a rotation-stopping mechanism to prevent the fixing ring from rotating relative to the base guide wall.

[0025] Preferably, the elastic member is a spring sleeved on the periphery of the guide wall of the base, the lower end of the spring abuts against the base, and the upper end abuts against the lower surface of the movable ring.

[0026] Preferably, a guide flange is provided on the outer edge of the guide wall of the base, the lifting seat includes a circumferential wall which is cylindrical and sleeved on the outer periphery of the guide wall of the base, a guide groove which extends in a cylindrical spiral trajectory and cooperates with the guide flange is provided on the inner side of the circumferential wall of the lifting seat, the guide flange includes a first end and a second end opposite to the first end, support blocks are provided at the first end and the second end, two sides of the support block respectively protrude from two side surfaces of the guide flange, and two sides of the support block respectively abut against two side walls of the guide groove so that the two side surfaces of the guide flange respectively cooperate with the two side walls of the guide groove.

[0027] Preferably, a shell extending upward from the bottom of the base is fixedly connected to the periphery of the base, the shell is arranged around the periphery of the lifting seat, an upper limit surface is arranged on the shell, and a lower limit surface located below and opposite to the upper limit surface is arranged on the lifting seat, an upper limit rib is protrudingly provided on the upper limit surface, and a lower limit rib is protrudingly provided on the lower limit surface, when the lifting seat is rotated upward to the highest position relative to the base, the upper limit rib presses against one side of the lower limit rib to limit further rotation of the lifting seat.

[0028] Preferably, the lifting seat is provided with a guide groove extending along a cylindrical spiral trajectory, and the base is provided with a guide member slidably embedded in the guide groove, the top end of the guide groove is a blind end to form a blind end limit surface, and the blind end limit surface is used to abut against the guide member when the lifting seat moves downward to the lowest position relative to the base to limit further rotation of the lifting seat.

[0029] Preferably, the periphery of the base is provided with a limiting wall extending upward, and the inner side surface of the limiting wall of the base is provided with a hemispherical boss which abuts against the outer wall of the lifting seat at a position corresponding to the periphery of the inner gear ring of the lifting seat.

[0030] Preferably, the periphery of the base is fixedly connected to a shell extending upward, and a lighting assembly is arranged on the top of the shell; the lighting assembly includes a light guide bar in a ring shape surrounding the periphery of the lifting base, and two light sources, two light incident surfaces are arranged on the light guide bar, and the two light sources correspond to the two light incident surfaces respectively so that the light emitted by the light source is directed toward the light incident surface and then enters the light guide bar.

[0031] Preferably, the lighting assembly also includes a light-transmitting member in an annular shape surrounding the periphery of the lifting seat, and a decorative ring in an annular shape and located on the periphery of the light-transmitting member and the light guide strip. The light-transmitting member is pressed above the light guide strip, and the bottom of the decorative ring is clamped on the shell and the top is pressed on the light-transmitting member to fix the light-transmitting member and the light guide strip on the shell.

[0032] Preferably, it also includes a wire and a control circuit board connected to the wire, and the wire is connected to the motor and the lighting component to supply power to the motor and the lighting component.

[0033] Preferably, it also includes a vehicle-mounted connecting seat, which is provided with a receiving portion for adapting and fixing the base of the above-mentioned vehicle-mounted lifting speaker assembly. The vehicle-mounted connecting seat has a signal connecting portion connected to the vehicle-mounted system or the external sound source system and an interface portion electrically connected to the speaker.

[0034] The beneficial effects of the utility model are:

[0035] In the utility model, an inner gear ring is arranged on the lifting seat, the motor is arranged at the bottom of the base, and a gear matched with the inner gear ring is arranged at the output end of the motor, so that the motor can be as close to the center of the base as possible, that is, under the premise of ensuring the normal driving of the lifting seat, the motor can be arranged as close to the central axis of the speaker as possible, reducing the size of the motor protruding from the periphery of the speaker, and then reducing the overall lateral size of the speaker, making the external shape of the speaker regular, so as to adapt to the space for installing the speaker on the vehicle interior, thereby facilitating the better arrangement of the speaker inside the vehicle. At the same time, the structure of the vehicle-mounted lifting speaker is simplified and the cost of the vehicle-mounted lifting speaker is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the structure of the utility model;

[0037] Figure 2 It is a cross-sectional view of the utility model and describes a usage state of the utility model;

[0038] Figure 3 This is another schematic diagram of the use state of the utility model;

[0039] Figure 4 for Figure 2 Enlarged view at center C;

[0040] Figure 5 for Figure 1 Sectional view of the middle base;

[0041] Figure 6 for Figure 1 Schematic diagram of the structure of the middle lifting seat;

[0042] Figure 7 for Figure 2 Schematic diagram of the assembly of the middle fixing ring and the base;

[0043] Figure 8 for Figure 1 Schematic diagram of the structure of the middle base;

[0044] Fig. 9 for Figure 2 The structural diagram of the middle movable ring;

[0045] Fig.10 for Figure 1A schematic diagram of the structure of the middle shell;

[0046] Fig.11 It is a cross-sectional view of the lighting assembly of the utility model;

[0047] Fig.12 This is a schematic diagram of the assembly of the lighting assembly in the present utility model;

[0048] Fig.13 for Fig.12 Schematic diagram of the assembly of the central light source and the light guide strip.

[0049] Among them: 10, base; 11, guide wall; 110, top surface; 111, speaker support surface; 112, extension wall; 113, avoidance groove; 114, snap-fit ​​boss; 115, buckle groove; 116, linear guide groove; 12, motor cavity; 121, screw column; 13, fixing ring; 131, pressure block; 132, raised portion; 133, buckle boss; 14, movable ring; 141, guide flange; 1411, first end; 1412, second end; 1413, support block; 142, sliding raised portion; 15, spring; 16, retaining wall; 17, notch; 18, partition; 19, limit wall; 191, hemispherical boss;

[0050] 20. Lifting seat; 21. Peripheral wall; 211. Guide groove; 212. Blind end limit surface; 22. Internal gear ring; 23. Lower limit surface; 231. Lower limit rib; 24. Speaker cover;

[0051] 30. Speaker; 31. Sound outlet surface; 32. Bottom surface;

[0052] 40. Motor; 401. Connecting ear; 41. Gear; 42. Reducer;

[0053] 50. Bottom cover;

[0054] 60. Shell; 61. Upper limit surface; 62. Upper limit rib;

[0055] 71. Light guide strip; 72. Light-transmitting member; 73. Decorative ring; 74. Light source. DETAILED DESCRIPTION

[0056] Below, in conjunction with the accompanying drawings and specific implementation methods, the utility model is further described:

[0057] like Figure 1 , 2, 3, 4, 5, and 6 show a vehicle-mounted lifting speaker of the present invention, which includes a base 10, a lifting seat 20, a motor 40, and a speaker 30. After the vehicle-mounted lifting speaker is installed on a vehicle, the base 10 is relatively fixed to the interior components of the vehicle, and the lifting seat 20 can be lifted and lowered relative to the base 10 under the drive of the motor 40. The base 10 has a guide wall 11 extending upward, and the motor 40 is arranged at the bottom of the base 10. The lifting seat 20 is sleeved on the base 20 and spirally cooperates with the guide wall 11 to achieve lifting. At the same time, an installation space is formed between the lifting seat 20 and the base 10, and the speaker 30 is placed in the installation space; the lifting seat 20 and the guide wall 11 are connected to each other. The wall 11 is spirally matched, so that when the motor 40 drives the lifting seat 20 to rotate relative to the base 10, the lifting seat 20 can be lifted and lowered in the extension direction of the guide wall 11. The motor 40 drives the lifting seat 20 to rotate relative to the base 10 through a transmission assembly composed of a gear 41 and an inner gear ring 22. The inner gear ring 22 is arranged on the lifting seat 20, and the gear 41 is connected to the output shaft of the motor 40. The gear 41 is placed on the inner side of the inner gear ring 22 and meshes with the inner gear ring 22 at the inner edge of the inner gear ring 22. Therefore, the output end of the motor 40 is connected to the inner gear ring 22 through the gear 41. Then, when the motor 40 is started, the lifting seat 20 can rotate with the inner gear ring 22 to achieve lifting.

[0058] The lifting seat 20 and the guide wall 11 are spirally matched to realize lifting. Specifically, a guide piece is arranged on the guide wall 11, and a guide groove 211 is arranged on the lifting seat 20. The guide piece arranged on the guide wall 11 can be a guide flange 141 located at the outer periphery of the guide wall. The lifting seat 20 includes a cylindrical peripheral wall 21, and the peripheral wall 21 is sleeved on the periphery of the guide wall 11. The guide groove 211 is arranged on the inner surface of the peripheral wall 21 and extends in a cylindrical spiral track. The guide flange 141 is slidably embedded in the guide groove 211. When the lifting seat 20 is sleeved on the outer periphery of the guide wall 11, the guide flange 141 is embedded in the guide groove 211. When the motor 40 drives the lifting seat 20 to rotate relative to the base 10, the guide flange 141 extends along the cylindrical spiral track of the guide groove 211, and then drives the lifting seat 20 to rise and fall along the extension direction of the guide wall 11. For example, when the motor 40 rotates forward, the gear 41 and the inner gear ring 22 cooperate to drive the lifting seat 20 to rotate relative to the base 10, so that the lifting seat 20 can be rotated and raised to the position as shown in the figure. Figure 2 In the state shown, that is, the lifting seat 20 moves upward to the maximum position, when the motor 40 rotates in the reverse direction, the gear 41 and the inner gear ring 22 cooperate to drive the lifting seat 20 to rotate relative to the base 10, so that the lifting seat 20 rotates and descends to the position shown in FIG. Figure 3The state shown. In fact, in another embodiment, the guide groove can also be set on the guide wall 11, and the guide flange can be set on the inner surface of the peripheral wall 21 of the lifting seat 20 accordingly. The guide member matched with the guide groove 211 extending from the cylindrical spiral trajectory is not limited to the above-mentioned guide flange 141, and it can also be other components that can slide in the guide groove 211, such as a rod-shaped component that protrudes radially outward from the outer surface of the guide wall 11 and is adaptively embedded in the guide groove 211; it can also be that an internal thread is set on the inner surface of the lifting seat 20, the guide groove extending from the cylindrical trajectory spiral is formed with an internal thread, and correspondingly, an external thread matching the internal thread is set on the outer surface of the guide wall 11, and the internal thread and the external thread cooperate with each other, so that the lifting seat 20 can be lifted and lowered when the lifting seat 20 rotates.

[0059] In the utility model, an inner gear ring 22 is provided on the lifting seat 20, and the motor 40 is arranged at the bottom of the base 10. A gear 41 meshing with the inner gear ring 22 is configured at the output end of the motor 40. In this way, the motor 40 can be as close to the center of the base 10 as possible, that is, on the premise of ensuring the normal driving of the lifting seat 20 to rise and fall, the motor 40 can be arranged as close to the central axis of the speaker 30 as possible, reducing the size of the part of the motor 40 protruding from the periphery of the speaker, thereby reducing the overall lateral size of the speaker, making the external shape of the speaker regular, so as to adapt to the space for installing the speaker on the vehicle interior, thereby facilitating the better arrangement of the speaker inside the vehicle.

[0060] A motor cavity 12 is formed at the bottom of the base 10. The lateral dimension of the motor cavity 12 is greater than its vertical dimension, that is, the dimension of the motor cavity 12 in the Z direction in the figure is greater than the dimension in the X direction in the figure, so that the motor cavity 12 is relatively flat in the height direction so that the motor 40 can be horizontally arranged inside the motor cavity 12. Since the motor 40 is horizontally arranged below the base 10, the space occupied by the motor 40 in the height direction (that is, the Z direction in the figure) is reduced. In this way, the internal space of the speaker can be fully utilized, so that the speaker has a relatively small longitudinal dimension. Figure 2 As shown, the motor 40 is placed horizontally inside the motor cavity 12, and the output end of the motor 40 is located at one end in the horizontal direction. After being connected to the output shaft of the motor 40, the gear 41 meshes with the inner gear ring 22 from the inner side of the inner gear ring 22. When the motor 40 drives the gear 41 to rotate to drive the inner gear ring 22 to rotate, in order to avoid the inner gear ring 22 from interfering with the motor 40 when the lifting seat 20 is lifted and lowered, the motor 40 is arranged so that the projection of the motor 40 on the cross section on the inner gear ring 22 falls inside the inner gear ring 22. With this arrangement, the internal space of the speaker can be further optimized, and the internal space of the inner gear ring 22 can be fully utilized to accommodate the motor 40.

[0061] In some other embodiments, the motor may also be longitudinally arranged at the bottom of the base 10, that is, the extension direction of the motor body is consistent with the Z direction in the figure. In this way, the central axis of the motor can be made as close as possible to the central axis of the speaker 30, and the central axis of the motor can even coincide with the central axis of the speaker 30, so that the lateral space occupied by the motor is as small as possible to adapt to the layout of the interior of the vehicle. For example, when the space for installing a lifting speaker in the vehicle interior is a long strip structure, the motor can be arranged longitudinally at the bottom of the base, and the outer diameter of the inner gear ring can be reduced to make the lifting seat 20 mounted on the base 10 have a relatively small outer diameter, thereby making the overall outer diameter of the speaker smaller.

[0062] In a preferred embodiment, see Figure 5 As shown, the base 10 includes a retaining wall 16 located below the guide wall 11 and extending downward. The retaining wall 16 is arranged around the periphery of the base 10 and a motor cavity 12 is formed at the lower part of the base 10 by the retaining wall 16. The projection of the retaining wall 16 on the cross section of the inner gear ring 22 falls inside the inner gear ring 22. In this way, when the inner gear ring 22 descends with the lifting base 20, the retaining wall 16 can avoid the inner gear ring 22, so that the inner gear ring 22 can surround the outer periphery of the retaining wall 16. At the same time, a notch 17 is arranged on the retaining wall 16. After the edge of the gear 41 passes through the notch 17, it meshes with the inner gear ring 22 at the inner edge of the inner gear ring 22. A retaining wall 16 is provided at the lower part of the base 10, and the retaining wall 16 is used to surround the periphery of the motor 40 to protect the motor 40. At the same time, when the speaker is assembled, the motor 40 can be pre-placed in the motor cavity 12 surrounded by the retaining wall 16 and the body of the motor 40 is fixed to the base 10, so that the motor 40 and the base 10 form a component and then assembled with the lifting seat 20. Further, in order to better protect the motor 40, a bottom cover 50 is detachably fixed at the bottom of the retaining wall 16 of the base 10. The bottom cover 50 can be fixed to the retaining wall 16 of the base 10 by bolt connection, clamping, etc., and it is sealed under the motor 40 to enclose the motor cavity 12 into a closed space, so that the motor 40 is placed in the closed space of the motor cavity 12. After the motor 40 is placed inside the motor cavity 12, the body of the motor 40 can be fixed to the base 10. Specifically, a connecting ear 401 is provided on both sides of the body of the motor 40, and two screw columns 121 are provided on the base 10 inside the motor cavity 12. The two connecting ears 401 are respectively aligned with the two screw columns 121, and the connecting ears 401 are fixed to the screw columns 121 by screws. Then, the body of the motor 40 is placed in the motor cavity 12 and fixedly connected to the base 10.

[0063] See also Figure 2As shown, when the motor 40 is placed horizontally at the bottom of the base 10 or the motor 40 is placed horizontally inside the motor cavity 12 surrounded by the retaining wall 16, the utility model is further provided with a reducer 42 connected to the output end of the motor 40, and the gear 41 is connected to the output shaft of the motor 40 through the reducer 42. The reducer 42 changes the torque of the output shaft of the motor 40 and connects with the gear 41, thereby increasing the torque of the gear 41, so that the gear 41 can smoothly drive the inner gear ring 22 to rotate. On the basis of configuring the reducer 42, on the premise of ensuring that the gear 41 can drive the normal transmission of the inner gear ring 22, a relatively small motor 40 can be used as much as possible to reduce the space occupied by the motor 40, and further optimize the internal space of the speaker. In addition, under the deceleration effect of the reducer 42, the gear 41 reaches a more appropriate speed, so that the lifting seat 20 reaches a more appropriate lifting speed. It should be pointed out that the reducer 42 can also be replaced by some gear sets that can reduce speed and increase torque. In the utility model, since the gear 41 is meshed with the inner ring gear 22 at the inner edge of the inner ring gear 22, the diameter of the gear 41 must be smaller than the inner diameter of the inner ring gear 22. That is to say, the gear 41 and the inner ring gear 22 form a first-stage reduction mechanism, which cooperates with the above-mentioned reducer 42 or gear set to realize a second-stage reduction mechanism. Based on this, a motor 40 with relatively small output power is further adopted to reduce the volume of the motor 40 and optimize the internal space of the speaker.

[0064] In a preferred embodiment, after the speaker 30 is placed in the installation space formed between the lifting seat 20 and the base 10, the speaker 30 is fixed on the guide wall 11 of the base 10, and the lifting seat 20 includes a cylindrical peripheral wall 21 that is sleeved on the outer periphery of the guide wall 11, and the sound outlet surface 31 of the speaker 30 and the peripheral wall 21 together form a front sound cavity A; for details, see Figure 2As shown, the peripheral wall 21 is arranged around the periphery of the guide wall 11, and the speaker 30 is fixed at the top of the guide wall 11 with the sound outlet surface 31 facing upward. The cavity surrounded by the cylindrical peripheral wall 21 protrudes above the speaker 30 to form a front sound cavity A. When the lifting seat 20 is lifted or lowered relative to the base 10, the space of the front sound cavity A can change with the lifting or lowering of the peripheral wall 21. In the process of the front sound cavity A changing, the sound quality of the speaker 30 will change accordingly, thereby changing the sound effect of the speaker box by changing the height position of the lifting seat 20. The guide wall 11 is set to be a hollow cylindrical structure, and the speaker 30 is fixed in the guide wall 11. The inner wall of the guide wall 11 below the bottom surface 32 of the speaker 30 forms a rear sound cavity B. A partition 18 is sealed at the bottom of the guide wall 11 on the base 10, that is, the guide wall 11, the bottom surface 32 of the speaker 30 and the partition 18 together form a closed rear sound cavity B to improve the output sound quality of the speaker 30; the part of the base 10 below the partition 18 forms a motor cavity 12 for installing the motor 40, and the partition 18 separates the rear sound cavity B from the motor cavity 12 to block the sound transmission between the two, so as to prevent the noise generated by the meshing of the motor 40, the reducer 42, the gear 41 and the inner gear ring 22 from transmitting upward to affect the sound quality of the speaker 30 when the motor 40 is working. Under the premise of setting the partition 18, the top of the body of the motor 40 can be fixed to the lower surface of the partition 18, for example, the two screw columns 121 mentioned above are formed by extending downward from the lower surface of the partition 18.

[0065] In another preferred embodiment, the lifting seat 20 includes a cylindrical peripheral wall 21, which is sleeved on the outer periphery of the guide wall 11. The speaker 30 can be fixed on the peripheral wall 21 of the lifting seat 20, so that the speaker 30 can be lifted and lowered along with the lifting seat 20. Specifically, the speaker 30 can be fixed on the top of the peripheral wall 21 with the sound outlet surface 31 facing upward. The lifting seat 20 drives the speaker 30 to rise and fall. After the speaker box is installed in the vehicle interior, the speaker 30 can rise upward along with the lifting seat 20 to be flush with the surface of the vehicle interior or protrude from the surface of the vehicle interior. At the same time, the speaker 30 can be lowered along with the lifting seat 20 to be hidden inside the vehicle interior. The lifting seat 20 drives the speaker 30 to rise and fall, so that the speaker 30 can produce different sound effects at different heights.

[0066] See also Figure 1 As shown, a speaker cover 24 located at the top of the installation space is also installed on the lifting seat 20, and a plurality of sound outlet holes are densely distributed on the speaker cover 24. Specifically, the speaker cover 24 can be fixed on the top of the peripheral wall 21 of the lifting seat 20, and the speaker cover 24 is used to protect the speaker 30 located below the speaker cover 24.

[0067] In the present invention, the lifting seat 20 is sleeved on the base 10 and spirally cooperates with the base guide wall 11 to achieve lifting. When the lifting seat 20 rises to the highest position, the lifting seat 20 may protrude from the surface of the vehicle interior. The protruding lifting seat 20 may be accidentally touched, causing damage to the speaker. For this, see Figure 2 , 4, 5, 6, 7, 8, in the preferred embodiment of the utility model, a movable ring 14 is sleeved on the guide wall 11 of the base 10, and a guide flange 141 is arranged on the movable ring 14. The lifting seat 20 includes a peripheral wall 21 which is cylindrical and sleeved on the periphery of the guide wall 11, and a guide groove 211 extending in a cylindrical spiral trajectory is arranged on the inner surface of the peripheral wall 21. The guide flange 141 on the movable ring 14 is slidably embedded in the guide groove 211. After the movable ring 14 is sleeved on the guide wall 11, it has the freedom to move relative to the guide wall 11 along the extension direction of the guide wall 11, and A linear guide mechanism is also provided between the movable ring 14 and the guide wall 11, and the linear guide mechanism is used to guide the movable ring 14 to move along the extension direction of the guide wall 11 when subjected to corresponding external force, and prevent the movable ring 14 from rotating relative to the guide wall 11. An elastic member is also provided between the base 10 and the movable ring 14, and the elastic member always applies an upward elastic stress to the movable ring 14. The elastic member pushes the movable ring 14 upward, so that the movable rod 14 and the guide wall 11 remain in a relatively fixed state. When subjected to a larger downward external force, the movable ring 14 will move downward and compress the elastic member. When the motor 40 drives the inner gear ring 22 to rotate, the lifting seat 20 rotates relative to the guide wall 11 and the lifting seat 20 is lifted and lowered under the cooperation of the guide flange 141 and the guide groove 211. When the motor 40 rotates forward to drive the lifting seat 20 to move upward to the maximum position, the lifting speaker is in a raised state, and at least a part of the lifting seat 20 protrudes from the surface of the vehicle interior. In this state, since the guide flange 141 on the movable ring 14 is embedded in the guide groove 211 of the peripheral wall 21 of the lifting seat 20, when the lifting seat 20 is pressed, the movable ring 14 will move downward with the lifting seat 20 and compress the elastic member, that is, the speaker is in a raised state. In the state, the lifting seat 20 and the base 10 are flexibly matched through the elastic member. When the raised lifting seat 20 is accidentally touched, it will shrink downward to prevent the lifting seat 20 and the base 10 from being damaged. In addition, the elastic member is used to push the movable ring 14 upward. When the guide flange 141 on the movable ring 14 slides in the guide groove 211, when the guide flange 141 is squeezed by the side of the guide groove 211, the guide flange 141 will adaptively swing up and down with a relatively small amplitude to prevent the friction between the guide flange 141 and the side wall of the guide groove 211 from being too large to cause jamming, so that the spiral lifting of the lifting seat 20 is smoother.The above-mentioned linear guide mechanism includes a linear guide groove 116 arranged on the outer surface of the guide wall 11 and extending in the same direction as the guide wall 11, and a sliding protrusion 142 arranged on the inner edge of the movable ring 14. The sliding protrusion 142 is slidably embedded in the linear guide groove 116, and the movable ring 14 can only slide relative to the guide wall 11 along the extension direction of the linear guide groove 116. At the same time, the sliding protrusion 142 and the linear guide groove 116 cooperate to limit the freedom of rotation of the movable ring 14 relative to the guide wall 11; of course, the linear guide mechanism can also include a linear guide rib arranged on the outer surface of the guide wall 11, and a guide groove arranged on the inner edge of the movable ring 14.

[0068] The top of the guide wall 11 is also provided with a fixed ring 13 which is detachably fixed to the guide wall 11. After the fixed ring 13 is fixed to the top of the guide wall 11, it is pressed above the movable ring 14. Under the elastic stress of the elastic member, the movable ring 14 always presses against the lower surface of the fixed ring 13. The fixed ring 13 is used to limit the upward movement of the movable ring 14. The fixed ring 13 is set to be detachably matched with the guide wall 11, which can facilitate the installation of the movable ring 14 on the guide wall 11. At the same time, the fixed ring 13 and the guide wall 11 are detachably fixed, and the fixed ring 13 can be used to fix the speaker 30 on the guide wall 11. For example, the fixed ring 13 is fixedly connected to the guide wall 11 in a snap-fit ​​manner. 1, a speaker supporting surface 111 is provided on the guide wall 11, and the speaker supporting surface 111 can be a step surface opened on the inner surface of the cylindrical guide wall 11. After the speaker 30 is embedded into the guide wall 11 from the top, the edge of the bottom surface 32 of the speaker 30 is supported on the speaker supporting surface 111. A plurality of pressing blocks 131 extending inwardly are provided on the inner edge of the fixing ring 13. After the fixing ring 13 is clamped on the top of the guide wall, the plurality of pressing blocks 131 are pressed above the edge of the speaker 30. In this way, the speaker 30 is clamped by the plurality of pressing blocks 131 and the speaker supporting surface 111, and the speaker 30 is fixed on the guide wall 11. A plurality of extending walls 112 extending upward are provided on the top surface 110 of the guide wall 11, and a top-opening avoidance groove 113 is formed between two adjacent extending walls 112. The avoidance groove 113 is used to accommodate the pressing block 131 on the fixing ring 13. An upwardly protruding clamping boss 114 is provided on the outer side surface of each extending wall 112. A plurality of protrusions 132 are provided on the inner edge of the fixing ring 13. The plurality of protrusions 132 correspond to the plurality of clamping bosses 114 one by one, and the protrusions 132 are clamped between the corresponding clamping bosses 114 and the top surface 110 of the guide wall 11, see Figure 7As shown, during assembly, the elastic member and the movable ring 14 are sleeved from the top of the guide wall 11 to the periphery of the guide wall 11, and then the speaker 30 is placed on the top of the guide wall 11, so that the bottom surface 32 of the speaker 30 is supported on the speaker support surface 111, and then the fixing ring 13 is sleeved from the top of the guide wall 11 to the periphery of the plurality of extension walls 112, so that the pressing block 131 on the fixing ring 13 is embedded in the avoiding groove 113 along one side of the avoiding groove 113, so that the pressing block 131 is pressed above the edge of the speaker 30, and the fixing ring 13 is rotated clockwise. The fixing ring 13 is provided with a pressing block 131 which rotates from one side of the avoidance groove 113 to the other side of the avoidance groove 113. At this time, the plurality of protrusions 132 on the fixing ring 13 rotate with the fixing ring 13 to the bottom of the plurality of clamping bosses 114, so that the plurality of protrusions 132 are clamped by the clamping bosses 114 and the top surface 110 of the guide wall 11, and the freedom of the fixing ring 13 and the guide wall 11 to move in the Z direction is limited. A buckle groove 115 is provided on the outer surface of each extension wall 112, and a buckle groove 115 is provided on the inner edge of the fixing ring 13. A plurality of buckling bosses 133 are arranged, and the plurality of buckling bosses 133 correspond to the plurality of buckling grooves 115 one by one. During the installation process, when the pressing block 131 is rotated from one side of the avoidance groove 113 to the other side, the buckling bosses 133 are just embedded in the buckling grooves 115. In this way, a rotation-stopping mechanism is formed by the buckling bosses 133 and the buckling grooves 115 to prevent the fixing ring 13 from rotating freely relative to the guide wall 11, and then the fixing ring 13 is fixedly connected to the top of the guide wall 11, and the fixing ring 13 is fixedly connected to the top of the guide wall 11 by the above-mentioned clamping method. 3 is fixed to the guide wall 11, so that the speaker 30, the movable ring 14, and the elastic member can be conveniently and quickly installed on the base 10, and the fixed cooperation between the fixing ring 13 and the guide wall 11 has better reliability, which prevents the speaker from being loosened due to long-term vibration of the vehicle, resulting in the lifting seat 20 not being lifted smoothly. In addition, only one firmware of the fixing ring 13 is needed to fix the speaker 30 on the base 10 and limit the upward movement of the movable ring 14, so that the whole structure is relatively simple.

[0069] The elastic member can be a spring 15, which is sleeved on the outer periphery of the guide wall 11, with the lower end of the spring 15 abutting against the base 10 and the upper end abutting against the lower surface of the movable ring 13. The elastic member can also be an elastic rubber block or other elastic member, as long as it can always push the movable ring 14 upward and apply an elastic stress of appropriate size to the movable ring 14.

[0070] See also Fig. 9As shown, the guide flange 141 is arranged on the outer periphery of the above-mentioned movable ring 14. Of course, in other embodiments, the guide flange 141 can also be directly arranged on the outer periphery of the guide wall 11. The lifting seat 20 includes a peripheral wall 21 that is cylindrical and sleeved on the outer periphery of the guide wall 11. The inner side of the peripheral wall 21 is provided with a guide groove extending in a cylindrical spiral trajectory. The guide flange 141 is embedded in the guide groove and can slide in the guide groove to realize the lifting and lowering of the lifting seat 20. The guide flange 141 includes a first end 1411 and a second end 1412 opposite to the first end 1411. A support block 141 is provided at both the first end 1411 and the second end 1412. 3. The thickness of the support block 1413 is larger than that of other parts of the guide flange 141, so that the two sides of the support block 1413 protrude from the two side surfaces of the guide flange 141 respectively. After the guide flange 141 is placed in the guide groove, the two sides of the support block 1413 are respectively abutted against the two side walls of the guide groove, and then the two side surfaces of the guide flange 141 are respectively matched with the two side walls of the guide groove. In this way, the contact area between the guide flange 141 and the side wall of the guide groove is relatively small. The relatively small contact area makes the friction between the guide flange 141 and the side wall of the guide groove relatively small, so that the guide flange 141 can slide smoothly in the guide groove.

[0071] See also Figure 1 , 2 As shown in , 6 and 10, a shell 60 extending upward from the bottom of the base 10 is fixedly connected to the periphery of the base 10, and the shell 60 is arranged around the periphery of the lifting seat 20 to protect the lifting seat 20. An upper limit surface 61 is arranged on the shell 60, and a lower limit surface 23 located below the upper limit surface 61 is arranged on the lifting seat 20. An upper limit rib 62 is protrudingly arranged on the upper limit surface 61, and a lower limit rib 231 is protrudingly arranged on the limit surface 23. The lifting seat 20 rotates relative to the base 10 and the shell 60 and rises and falls as shown in FIG. Figure 2 When the lifting seat 20 is in the highest position shown in the figure, the upper limit rib 62 and the lower limit rib 231 abut against each other. At this time, the upper limit rib 62 abuts against the lower limit rib 231 to prevent the lifting seat 20 from further rotating relative to the base 10 and the shell 60. When the lifting seat 20 rotates and moves upward to Figure 2In the state shown, the upper limit rib 62 presses against the lower limit rib 231 from the side of the lower limit rib 231, so that the lifting seat 20 stops rotating and prevents the lifting seat 20 from further rotating upward. At this time, a relatively large longitudinal extrusion force (i.e., an extrusion force along the Z direction in the figure) will not be generated between the lifting seat 20, the base 10 and the shell 60, which plays a better protective role for the lifting seat 20, the base 10 and the shell 60. In addition, since there is no longitudinal extrusion, the lifting seat 20 and the shell 60 are prevented from being greatly deformed. When the motor 40 rotates in the opposite direction to drive the lifting seat 20 to descend, it is ensured that the lifting seat 20 can rotate in the opposite direction and descend smoothly, thereby avoiding a certain adhesion force between the lifting seat 20 and the shell 60 due to deformation of components. A guide groove 211 extending in a cylindrical spiral trajectory is provided on the lifting seat 20, and a guide member such as a guide flange 141 or other structural forms slidably embedded in the guide groove 211 is provided on the base 10. The top of the guide groove 211 is a blind end to form a blind end limit surface 212. When the lifting seat 20 rotates and descends to a position such as Figure 3 In the state shown, the blind end limiting surface 212 abuts against the limiting member to prevent the lifting seat 20 from further rotating. That is, the blind end limiting surface 212 cooperates to form a limiting mechanism to limit the lowest position of the lifting seat 20 moving downward.

[0072] See also Figure 8 As shown, a limiting wall 19 extending upward is provided on the periphery of the base 10. The limiting wall 19 surrounds the bottom periphery of the lifting seat 20, that is, surrounds the periphery of the inner gear ring 22. A hemispherical boss 191 is provided on the inner side surface of the limiting wall 19 at a position corresponding to the periphery of the inner gear ring 22. The hemispherical boss 191 abuts against the outer circumferential surface of the inner gear ring 22 to limit the inner gear ring 22 in the radial direction of the inner gear ring 22, so that when the inner gear ring 22 rotates and rises and falls with the lifting seat 20, the small swing of the inner gear ring 22 is eliminated, so that the inner gear ring 22 can be more reliably engaged with the gear 41, and at the same time, the lifting seat 20 is prevented from swinging during the rotation and lifting process, so that the guide member on the base 10 can slide more stably in the guide groove of the lifting seat 20, and the inner gear ring 22 is limited by the hemispherical boss 191, so as to reduce the contact area between the lifting seat 20 and the base 10 and reduce the friction loss between the lifting seat 20 and the base 10. In other embodiments, the hemispherical boss 191 may also be distributed on the inner surface of the shell 60 that is fixedly matched with the base 10 .

[0073] See also Figure 1 as well as Fig.11 , 12As shown in Figures 13, a shell 60 extending upward is connected to the periphery of the base 10, and a lighting assembly is arranged on the top of the shell 60. The lighting assembly includes a light guide bar 71 which is ring-shaped and surrounds the periphery of the lifting seat 20, and two light sources 74. Two light incident surfaces 711 are arranged on the light guide bar 71. The two light sources 74 are respectively arranged at the two light incident surfaces 711 and correspond to the two light incident surfaces 711, so that the light emitted by the light source 74 can be directed toward the light incident surface 711 and then enter the inside of the light guide bar 71. After the light emitted by the light source 74 enters the inside of the light guide bar 71, a circle of decorative effect is formed on the periphery of the lifting seat 20 by the light guide bar 71. Two grooves can be arranged on the light guide bar 71, and one side wall of the groove forms the light incident surface 711. After the light source 74 is embedded in the groove, the light emitted by the light source 74 is directed toward the light incident surface 711. In other embodiments, the light guide bar 71 may be divided into two disconnected sections, each section extending along a semicircular trajectory, and two light sources 74 are respectively placed at the ends of the two ends of the light guide bar 71. The lighting assembly also includes a light-transmitting member 72 in an annular shape surrounding the outer periphery of the lifting seat 20, and an annular decorative ring 73. The light-transmitting member 72 is pressed on the top of the light guide bar 71, the bottom of the decorative ring 73 is clamped on the housing 60 to fix the decorative ring 73 and the housing 60 together, and the top of the decorative ring 73 is pressed on the light-transmitting member 72 to press and fix the light-transmitting member 72 and the light guide bar 71 on the housing 60. By providing the light-transmitting member 72, the light emitted by the light guide bar 72 forms an annular light belt on the top of the speaker to enhance the decorative properties of the speaker.

[0074] The vehicle-mounted lifting speaker assembly of the utility model also includes a wire and a control circuit board connected to the wire. The wire is connected to the motor 40 and the lighting assembly to supply power to the motor 40 and the lighting assembly. After the vehicle-mounted lifting speaker assembly is installed on the vehicle, the wire can be connected to a special interface configured on the vehicle, and the power supply on the vehicle will supply power to the motor 40 and the lighting assembly through the wire.

[0075] In other embodiments, more applicable environments are expanded, and a vehicle-mounted connection seat can also be set. The vehicle-mounted connection seat is provided with a accommodating portion for adapting and fixing the base of the vehicle-mounted lifting speaker assembly, such as a concave cavity that matches the contour of the base of the vehicle-mounted lifting speaker assembly, or a clamping structure, to ensure that the vehicle-mounted lifting speaker assembly can be well fixed. The vehicle-mounted connection seat has a signal connection portion connected to the vehicle-mounted system or an external sound source system. The signal connection portion can be a data cable, which can be directly electrically connected to the vehicle-mounted system to receive the sound source signal in the vehicle-mounted system. The signal connection portion can be a WiFi module or a Bluetooth module, which can enable the vehicle-mounted lifting speaker assembly to establish a wireless data connection with the vehicle-mounted system. In other embodiments, in addition to the vehicle-mounted system, it can also be an external sound source system, such as a user's mobile phone, a user's computer, etc., and the user's mobile phone can be data-connected to the vehicle-mounted connection seat through a data cable or a wireless communication module. An interface portion electrically connected to the speaker of the vehicle-mounted lifting speaker assembly is provided on the vehicle-mounted connection seat, which can be a contact terminal, a plug-in interface or a magnetic interface, etc., which facilitates the speaker and the vehicle-mounted connection seat to establish a signal connection through the interface portion.

[0076] Of course, if the above-mentioned vehicle-mounted lifting speaker assembly is used as a speaker module, the utility model can provide another embodiment, taking the speaker module as the main body, to provide a speaker lifting assembly that is not limited to the vehicle-mounted environment, and applied in other scenarios, that is, a speaker lifting assembly, including a base, a motor, a speaker and a lifting seat; the base has a guide wall extending upward, and the motor is installed at the bottom of the base; the lifting seat is arranged on the base and spirally cooperates with the guide wall of the base to achieve lifting, and an installation space for installing the speaker is formed between the lifting seat and the base; an inner gear ring is provided on the lifting seat, and the output end of the motor is connected to the inner gear ring through a gear to drive the inner gear ring to rotate through the gear so that the lifting seat can rotate and lift relative to the guide wall of the base. On this basis, the other improvements and optimized structures in the above-mentioned embodiments are applied here, which is equivalent to removing the word "vehicle-mounted" from the above-mentioned vehicle-mounted lifting speaker assembly and applying it to other environments, so as to achieve the purpose of lifting and lowering the vehicle-mounted lifting speaker assembly. Figure 1 , 2 Taking the lifting speaker shown as an example, the base 10 or the housing 60 can be fixed on the desktop to be used as a lifting speaker that can be applied to the desktop. The above-mentioned "car connection socket" can also be directly copied as a "speaker connection socket" to achieve connection with external sound sources to adapt to more usage environments.

[0077] The above description is only a preferred embodiment of the utility model, which is a further detailed description of the utility model in combination with specific preferred implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

1. A vehicle-mounted lifting speaker assembly, characterized in that: Including base, motor, speaker and lifting seat; The base has a guide wall extending upward, and the motor is installed at the bottom of the base; the lifting seat is arranged on the base and spirally cooperates with the guide wall of the base to achieve lifting, and an installation space for installing the speaker is formed between the lifting seat and the base; An inner gear ring is arranged on the lifting seat, and the output end of the motor is connected with the inner gear ring through a gear, and is used to drive the inner gear ring to rotate through the gear so that the lifting seat can rotate and rise relative to the guide wall of the base.

2. The vehicle-mounted lifting speaker assembly according to claim 1, characterized in that: A guide groove is arranged on one of the lifting seat and the base guide wall, and a guide piece is arranged on the other. The guide groove extends along a cylindrical spiral track, and the guide piece is slidably embedded in the guide groove so that the lifting seat and the base guide wall are spirally matched to realize lifting.

3. The vehicle-mounted lifting speaker assembly according to claim 1, characterized in that: The base includes a retaining wall located below the base guide wall and extending downward, the base retaining wall enclosing a motor cavity, the projection of the base retaining wall on the cross section of the inner gear ring falls inside the inner gear ring so that the inner gear ring can surround the outer periphery of the base retaining wall when the lifting seat descends, a notch is arranged on the base retaining wall, and the edge of the gear passes through the notch and meshes with the inner gear ring at the inner edge of the inner gear ring.

4. The vehicle-mounted lifting speaker assembly according to claim 3, characterized in that: A bottom cover which is detachably fixed to the bottom of the base retaining wall and covers the bottom of the motor cavity.

5. The vehicle-mounted lifting speaker assembly according to claim 1, characterized in that: A motor cavity is formed at the lower part of the base, and the transverse dimension of the motor cavity is greater than the vertical dimension thereof so that the motor can be arranged transversely in the motor cavity.

6. The vehicle-mounted lifting speaker assembly according to claim 1 or 5, characterized in that: The projection of the motor on the cross section of the internal gear ring falls inside the internal gear ring.

7. The vehicle-mounted lifting speaker assembly according to claim 1, characterized in that: The output end of the motor converts the torque through a gear set or a reducer to connect the gear to the inner ring gear.

8. The vehicle-mounted lifting speaker assembly according to claim 1, characterized in that: The loudspeaker is fixed on the base guide wall, the lifting seat comprises a cylindrical peripheral wall which is sleeved on the periphery of the base guide wall, and the sound outlet surface of the loudspeaker and the peripheral wall of the lifting seat together form a front sound cavity with variable space.

9. The vehicle-mounted lifting speaker assembly according to claim 8, characterized in that: The base guide wall is hollow cylindrical, and the speaker is fixed in the base guide wall. The inner cavity of the base guide wall below the bottom surface of the speaker forms a rear sound cavity. A partition is provided on the base at the bottom end of the base guide wall to cover the bottom of the rear sound cavity. The part of the base below the partition forms a motor cavity for installing a motor. The partition is placed between the rear sound cavity and the motor cavity to isolate the sound transmission between the two.

10. The vehicle-mounted lifting speaker assembly according to claim 1, characterized in that: The lifting seat comprises a peripheral wall which is in a cylindrical shape and sleeved on the outer periphery of the base guide wall. The loudspeaker is fixed in the peripheral wall of the lifting seat and rises and falls together with the lifting seat.

11. The vehicle-mounted lifting speaker assembly according to claim 1, characterized in that: It also includes a speaker cover which is fixed on the lifting seat and located at the top of the installation space, and the speaker cover is densely covered with a plurality of sound outlet holes.

12. The vehicle-mounted lifting speaker assembly according to any one of claims 1 and 8 to 11, characterized in that: A movable ring is sleeved on the guide wall of the base, and a guide flange is arranged on the movable ring. The lifting seat includes a peripheral wall which is cylindrical and sleeved on the outer periphery of the guide wall of the base. A guide groove which extends in a cylindrical spiral trajectory and cooperates with the guide flange is arranged on the inner side of the peripheral wall of the lifting seat. A linear guide mechanism is arranged between the movable ring and the guide wall of the base so that the movable ring has the freedom to move in the extension direction of the guide wall of the base. An elastic member is arranged between the base and the movable ring to apply upward elastic stress to the movable ring.

13. The vehicle-mounted lifting speaker assembly according to claim 12, characterized in that: The linear guide mechanism comprises a linear guide groove arranged on the outer surface of the base guide wall and extending in the same direction as the base guide wall, and a sliding protrusion arranged on the inner edge of the movable ring and slidably embedded in the linear guide groove.

14. The vehicle-mounted lifting speaker assembly according to claim 13, characterized in that: The top of the guide wall of the base is detachably fixedly connected with a fixing ring which is pressed on the movable ring to limit the upward movement of the movable ring.

15. The vehicle-mounted lifting speaker assembly according to claim 14, characterized in that: The fixing ring is fixedly connected to the top of the base guide wall in a snap-fitting manner. A speaker support surface is arranged on the base guide wall. A plurality of pressure blocks extending inward are arranged on the inner edge of the fixing ring. The edge of the speaker is clamped between the plurality of pressure blocks and the speaker support surface to fix the speaker on the base guide wall.

16. The vehicle-mounted lifting speaker assembly according to claim 15, characterized in that: The top surface of the base guide wall is provided with a plurality of extension walls extending upward, and a top opening is formed between adjacent extension walls and an avoidance groove for accommodating the pressure block, and the outer side surface of each extension wall is provided with a clamping boss protruding outward, and the inner edge of the fixing ring is provided with a plurality of protrusions corresponding to the clamping bosses one by one, and the protrusions are respectively clamped and fixed between the corresponding clamping bosses and the top surface of the base guide wall; the outer surface of the extension wall is provided with a buckle groove, and the inner edge of the fixing ring is provided with a buckle boss matching the buckle groove; the pressure block can be embedded in the avoidance groove from top to bottom and can move from one side of the avoidance groove to the other side of the avoidance groove as the fixing ring rotates relative to the base guide wall, and when the pressure block slides to the other side of the avoidance groove, the buckle boss is clamped in the buckle groove to cooperate with the buckle groove to form a rotation-stopping mechanism to prevent the fixing ring from rotating relative to the base guide wall.

17. The vehicle-mounted lifting speaker assembly according to claim 12, characterized in that: The elastic member is a spring sleeved on the periphery of the guide wall of the base, the lower end of the spring abuts against the base, and the upper end abuts against the lower surface of the movable ring.

18. The vehicle-mounted lifting speaker assembly according to claim 1, characterized in that: A guide flange is arranged on the outer edge of the guide wall of the base, the lifting seat comprises a circumferential wall which is cylindrical and sleeved on the outer periphery of the guide wall of the base, a guide groove which cooperates with the guide flange and extends in a cylindrical spiral trajectory is arranged on the inner side of the circumferential wall of the lifting seat, the guide flange comprises a first end and a second end opposite to the first end, support blocks are arranged at the first end and the second end, two sides of the support block respectively protrude from two side surfaces of the guide flange, two sides of the support block respectively abut against two side walls of the guide groove so that the two side surfaces of the guide flange respectively cooperate with the two side walls of the guide groove in a clearance.

19. The vehicle-mounted lifting speaker assembly according to claim 1, characterized in that: The periphery of the base is fixedly connected with a shell extending upward from the bottom of the base, the shell is arranged around the periphery of the lifting seat, an upper limit surface is arranged on the shell, and a lower limit surface is arranged on the lifting seat, which is located below the upper limit surface and opposite to the upper limit surface, an upper limit rib is protrudingly provided on the upper limit surface, and a lower limit rib is protrudingly provided on the lower limit surface. When the lifting seat rotates upward to the highest position relative to the base, the upper limit rib presses against one side of the lower limit rib to limit further rotation of the lifting seat.

20. The vehicle-mounted lifting speaker assembly according to claim 1 or 19, characterized in that: The lifting seat is provided with a guide groove extending along a cylindrical spiral trajectory, and the base is provided with a guide member slidably embedded in the guide groove. The top end of the guide groove is a blind end to form a blind end limit surface. The blind end limit surface is used to abut against the guide member when the lifting seat moves downward to the lowest position relative to the base to limit further rotation of the lifting seat.

21. The vehicle-mounted lifting speaker assembly according to claim 1, characterized in that: The periphery of the base is provided with a limiting wall extending upward, and the inner side surface of the limiting wall of the base is provided with a hemispherical boss which abuts against the outer wall of the lifting seat at a position corresponding to the periphery of the inner gear ring of the lifting seat.

22. The vehicle-mounted lifting speaker assembly according to claim 1, characterized in that: The periphery of the base is fixedly connected to a shell extending upward, and a lighting assembly is arranged on the top of the shell; the lighting assembly includes a light guide bar in a ring shape surrounding the periphery of the lifting base, and two light sources, and two light incident surfaces are arranged on the light guide bar. The two light sources correspond to the two light incident surfaces respectively so that the light emitted by the light source is directed toward the light incident surfaces and then enters the light guide bar.

23. The vehicle-mounted lifting speaker assembly according to claim 22, characterized in that: The lighting assembly also includes a light-transmitting member in an annular shape surrounding the outer periphery of the lifting seat, and a decorative ring in an annular shape and located on the outer periphery of the light-transmitting member and the light guide strip. The light-transmitting member is pressed above the light guide strip, and the bottom of the decorative ring is clamped on the shell, and the top is pressed on the light-transmitting member to fix the light-transmitting member and the light guide strip on the shell.

24. The vehicle-mounted lifting speaker assembly according to claim 22, characterized in that: It also includes wires and a control circuit board connected to the wires. The wires are connected to the motor and the light assembly to supply power to the motor and the light assembly.

25. The vehicle-mounted lifting speaker assembly according to claim 1, characterized in that: It also includes a vehicle-mounted connecting seat, on which is provided a receiving portion for adapting and fixing the base of the vehicle-mounted lifting speaker assembly described in any one of claims 1-24 above, and the vehicle-mounted connecting seat has a signal connecting portion connected to the vehicle-mounted system or the external sound source system and an interface portion electrically connected to the speaker.

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