Sound box lifting module

Abstract

The utility model is applicable to the technical field of ultrasonic motors, and provides a sound box lifting module, which is applied to a vehicle-mounted sound box and comprises a first fixing plate for bearing the sound box and a driving device for driving the first fixing plate to lift, and the driving device comprises at least one ultrasonic motor and at least one screw rod. The ultrasonic motor is connected with the screw rod through the transmission mechanism, and the screw rod rotates to directly drive the first fixing plate to ascend and descend so as to adjust the height of the sound equipment; the sound equipment is driven by the ultrasonic motor to ascend and descend, the effect of low running noise can be achieved, and better use experience feeling is brought to a driver and passengers of the vehicle; and the ultrasonic motor is compact in structure, so that the volume of the whole sound equipment is preferentially reduced to a certain extent, and the internal space of the vehicle is fully utilized.

Description

Technical Field

[0001] The utility model belongs to the technical field of ultrasonic motors, and in particular relates to a sound lifting module. Background Art

[0002] The car audio system is one of the most important configurations in the car, which can significantly enhance the driving experience. In the application of audio, speakers at different heights can achieve different sound effects. Adjusting the height of the speakers according to the layout of the driving can ensure that all listeners can get an ideal listening experience.

[0003] The existing ordinary vehicle audio lifting module generally uses an electromagnetic motor and a worm gear structure. The noise is relatively loud during the lifting process, and the lifting height control is not accurate enough, which affects the user experience. It also has the disadvantage of making the overall size of the audio bulky and occupying a large space in the vehicle.

[0004] Therefore, the prior art has defects. Utility Model Content

[0005] The utility model aims to overcome the drawback of the prior art that the lifting noise is large, and provides a sound lifting module.

[0006] The utility model is implemented as follows: an audio lifting module includes a first fixed plate for supporting audio, a driving device for driving the first fixed plate to lift, the driving device includes at least one ultrasonic motor and at least one screw rod, the ultrasonic motor is connected to the screw rod through a transmission mechanism, and the rotation of the screw rod directly drives the lifting of the first fixed plate to adjust the height of the audio equipment.

[0007] Furthermore, the transmission mechanism includes a rotating rod connected to the output shaft of the ultrasonic motor, the rotating rod is a through structure with threads arranged inside, and the lead screw is threadedly connected to the rotating rod.

[0008] Furthermore, it also includes a second fixing plate for supporting the ultrasonic motor, and a positioning mechanism is connected between the second fixing plate and the first fixing plate, and the positioning mechanism is used to achieve stable lifting and lowering of the first fixing plate.

[0009] Furthermore, the positioning mechanism includes a linear bearing arranged in the second fixed plate, a guide rod is connected to the linear bearing, and one end of the guide rod is connected to the first fixed plate.

[0010] Furthermore, a rotary bearing is provided in the position of the second fixing plate corresponding to the screw rod, and the rotating rod is connected to the output shaft of the ultrasonic motor and then fixed to the inner ring of the optional bearing.

[0011] Furthermore, the lifting module is arranged in a shell, and the shell includes a detachably connected upper cover and an outer shell. The upper cover is provided with a through hole adapted to the diameter of the speaker, and the lifting of the speaker is achieved by passing through the through hole.

[0012] Furthermore, the speaker and the first fixing plate are fixed by means of a plurality of screws or adhesive.

[0013] The utility model provides an audio lifting module, which drives the lifting of the audio equipment through an ultrasonic motor, can achieve the effect of low noise operation, and bring a better user experience to the vehicle's drivers and passengers; and the ultrasonic motor has a compact structure, which to a certain extent gives priority to reducing the volume of the entire audio equipment, so as to make full use of the vehicle's internal space. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] The following drawings are only intended to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.

[0016] Figure 1 The utility model is a structural side sectional view of a sound lifting module.

[0017] Figure 2 It is a structural explosion diagram of a sound lifting module provided by the utility model.

[0018] Figure 3 The utility model is a schematic diagram of a sound lifting module driving a sound to rise.

[0019] Explanation of the accompanying drawings: 1. Speaker; 2. First fixed plate; 3. Ultrasonic motor; 4. Screw; 5. Rotating rod; 6. Second fixed plate; 7. Positioning mechanism; 71. Linear bearing; 72. Guide rod; 8. Rotating bearing; 9. Upper cover; 10. Housing. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0021] See also Figure 1-Figure 3, is a sound lifting module disclosed in the utility model. In order to improve the structural compactness of the entire lifting module, the lifting module is arranged in a shell. The entire shell can be made of high-strength plastic or metal material to ensure the stability and durability of the overall structure. The shell specifically includes a detachably connected upper cover 9 and an outer shell 10. The upper cover 9 is provided with a through hole adapted to the diameter of the sound 1, and the lifting of the sound 1 is achieved by passing through the through hole.

[0022] The lifting module specifically includes a first fixed plate 2 for supporting the speaker 1 and a driving device for driving the first fixed plate 2 to be lifted and lowered. The first fixed plate 2 and the driving device are both arranged in the outer shell 10. When the driving device drives the first fixed plate 2 to be lifted and lowered to drive the speaker 1 to be lifted and lowered, the speaker 1 can extend out or extend into the outer shell 10 through the through hole, that is, the through hole provides a moving space for the lifting and lowering of the speaker 1.

[0023] The driving device includes at least one ultrasonic motor 3 and at least one screw 4. The ultrasonic motor 3 is connected to the screw 4 through a transmission mechanism. The rotation of the screw 4 directly drives the lifting of the first fixed plate 2 to adjust the height of the audio device 1. Preferably, the audio device 1 and the first fixed plate 2 are fixed by a plurality of screws or adhesives. The audio device 1, the first fixed plate 2 and the screw 4 are combined into a module to ensure that the audio device 1 will not fall off during the lifting process, and the lifting movement of the screw 4 can drive the audio device 1 to lift and lower in the same direction and height through the first fixed plate 2. Specifically, the transmission mechanism includes a rotating rod 5 connected to the output shaft of the ultrasonic motor 3. The rotating rod 5 is a through structure with a thread inside. The screw 4 is threadedly connected to the rotating rod 5. After the ultrasonic motor 3 is started, the ultrasonic motor 3 directly drives the rotating rod 5 to rotate in place. Since the screw rod 4 extends into the rotating rod 5 and is threadedly connected to the rotating rod 5, when the rotating rod 5 rotates, the rotational motion of the ultrasonic motor 3 is converted into the linear motion of the screw rod 4, so that the screw rod 4 can move up and down along the coaxial direction of the rotating rod 5, that is, it can drive the lifting and lowering of the speaker 1 through the first fixed plate 2. In this process, since the operating noise of the ultrasonic motor 3 is low, the sound emitted when adjusting the height of the speaker 1 can be reduced as much as possible, thereby improving the user's experience. At the same time, the structure of the ultrasonic motor 3 is relatively compact, that is, the volume of the entire shell does not need to be too large, which greatly reduces the volume of the entire speaker 1 device, and can also make full use of the space inside the shell to reasonably plan the positions of other components inside the shell, such as circuit boards, encoders, etc., which can better plan the vehicle space.

[0024] A second fixing plate 6 for carrying the ultrasonic motor 3 is also fixed in the housing 10. The second fixing plate 6 is fixed in the housing 10 by means of screws or buckles to ensure the stability of its position. The second fixing plate 6 fixes the ultrasonic motor 3 so that it can perform a smooth rotation. The smooth rotation of the ultrasonic wave can, to a certain extent, enable the screw 4 to perform a smooth linear motion. In order to smoothly rotate the rotating rod 5 under the premise of fixing the ultrasonic motor 3, a rotating bearing 8 is provided in the position of the second fixing plate 6 corresponding to the screw 4. After the rotating rod 5 is connected to the output shaft of the ultrasonic motor 3, it is fixed to the inner ring of the optional bearing.

[0025] In addition, a positioning mechanism 7 is connected between the second fixed plate 6 and the first fixed plate 2, and the positioning mechanism 7 is used to achieve stable lifting of the first fixed plate 2 to prevent the speaker 1 from shaking during the lifting process. Specifically, the positioning mechanism 7 includes a linear bearing 71 arranged in the second fixed plate 6, and a guide rod 72 is connected to the linear bearing 71, and one end of the guide rod 72 is connected to the first fixed plate 2. When the screw rod 4 drives the first fixed plate 2 to perform a linear lifting motion, the first fixed plate 2 always performs a lifting motion along the coaxial direction of the linear bearing 71 under the action of the guide rod 72, thereby avoiding horizontal deviation or shaking of the first fixed plate 2, so that the speaker 1 can be lifted and lowered smoothly.

[0026] The above are only two preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sound lifting module, characterized in that: The invention comprises a first fixing plate (2) for supporting a sound device (1), and a driving device for driving the first fixing plate (2) to rise and fall, wherein the driving device comprises at least one ultrasonic motor (3) and at least one screw rod (4), wherein the ultrasonic motor (3) is connected to the screw rod (4) via a transmission mechanism, and the rotation of the screw rod (4) directly drives the first fixing plate (2) to rise and fall, so as to adjust the height of the sound device (1).

2. The sound lifting module according to claim 1, characterized in that: The transmission mechanism comprises a rotating rod (5) connected to the output shaft of the ultrasonic motor (3); the rotating rod (5) is a through structure with a thread inside; the screw rod (4) is threadedly connected to the rotating rod (5).

3. The sound lifting module according to claim 2, characterized in that: It also includes a second fixing plate (6) for supporting the ultrasonic motor (3), a positioning mechanism (7) being connected between the second fixing plate (6) and the first fixing plate (2), and the positioning mechanism (7) being used to achieve stable lifting and lowering of the first fixing plate (2).

4. The sound lifting module according to claim 3, characterized in that: The positioning mechanism (7) comprises a linear bearing (71) arranged in the second fixing plate (6), a guide rod (72) is connected to the linear bearing (71), and one end of the guide rod (72) is connected to the first fixing plate (2).

5. The sound lifting module according to claim 3, characterized in that: A rotary bearing (8) is provided in the position of the second fixing plate (6) corresponding to the screw rod (4), and the rotating rod (5) is connected to the output shaft of the ultrasonic motor (3) and then fixed to the inner ring of the rotary bearing.

6. A sound lifting module according to any one of claims 1 to 5, characterized in that: The lifting module is arranged in a shell, and the shell comprises a detachably connected upper cover (9) and an outer shell (10). The upper cover (9) is provided with a through hole adapted to the diameter of the speaker (1), and the speaker (1) is lifted by passing through the through hole.

7. The sound lifting module according to claim 1, characterized in that: The speaker (1) and the first fixing plate (2) are fixed by means of a plurality of screws or adhesive.

Images