Vehicle-mounted sound box with lifting structure

Abstract

The invention relates to the technical field of vehicle-mounted facilities, in particular to a vehicle-mounted loudspeaker box with a lifting structure, which comprises a base, a shell, a filter screen body, a power amplifier body and a circuit board body, and further comprises a cover shell arranged on the surface of the shell in a penetrating manner, the power amplifier body is fixed in the cover shell, the circuit board body is bolted to the inner side of the shell, and the lifting structure is arranged on the base. The filter screen body is fixed to the front of the inner side of the housing, an inlet channel is formed in the rear side of the housing in a penetrating mode, and a fan is connected to the inner wall of the inlet channel in a bolted mode; the driving motor is started to drive the cross rod and the screw rod to rotate, so that the threaded sleeve drives the fixed rod to move, shorten or enlarge the distance between the shell and the base, the sound box has a lifting function, the height of the sound box can be adjusted, sound field positioning is adjusted according to the sitting position, and the sound box is convenient to use. And meanwhile, the structure of the rotary flower column is matched with the lifting action to generate mechanical aesthetics display, so that the interestingness of the loudspeaker box is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle facilities, and specifically to an in-vehicle speaker with a lifting structure. Background Art

[0002] With the vigorous development of the social economy and the rapid progress of science and technology, in-vehicle speakers have occupied an important position in the automotive supplies market and become an essential accessory for enhancing the driving experience. In the early stage, the functions of in-vehicle speakers were relatively single, mainly relying on the memory card slot to play music to meet the basic listening needs of users. However, with the rapid rise of the speaker industry and the diversified upgrading of consumer demands, the functions of in-vehicle speakers have achieved a qualitative leap. Modern in-vehicle speakers not only retain the traditional memory card playback function but also incorporate diverse connection methods such as AUX wired connection and Bluetooth wireless connection, supporting seamless docking with smart devices such as mobile phones and tablets, enabling users to easily enjoy a vast amount of music resources from different platforms during driving, greatly enriching the entertainment experience during the journey.

[0003] Currently, some in-vehicle speakers have obvious shortcomings in functional design and cannot flexibly adjust the sound field distribution according to the seat positions of passengers in the vehicle. This defect results in problems such as high-frequency blurring and low-frequency looseness in the audio signals received by rear-row or co-pilot passengers, especially in multi-occupant scenarios, greatly reducing the listening experience. At the same time, the protection design of the power amplifier module is also insufficient. Although a filter is set to block dust, after long-term use, dust will accumulate on the surface of the filter, forming a heat-insulating layer, hindering device heat dissipation, and causing the temperature of the internal circuit to rise. The high-temperature environment will not only accelerate the aging of the device but also cause the electrolyte of key components such as electrolytic capacitors to evaporate rapidly, leading to faults such as a decrease in output power and sound distortion. Summary of the Invention

[0004] The purpose of the present invention is to provide an in-vehicle speaker with a lifting structure, which has a lifting function and can cool the internal circuit and the power amplifier at the same time.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An in-vehicle speaker with a lifting structure, including a base, a housing, a filter body, a power amplifier body, and a circuit board body, further including:

[0006] A cover shell penetrating through the surface of the housing, the power amplifier body is fixed inside the cover shell, the circuit board body is bolted to the inner side of the housing, the filter body is fixed in front of the inner side of the cover shell, an air inlet channel is penetrated through the rear side of the housing, and a fan is bolted to the inner wall of the air inlet channel;

[0007] Connect the first cover body and the second cover body which are arranged on the upper and lower sides at the other end of the inlet channel. A connecting pipe is connected to the other side of the first cover body. The other end of the connecting pipe is connected to an air outlet cover, and the air outlet cover is located on the side of the circuit board body. A communicating pipe is also connected to the other side of the second cover body. The other end of the communicating pipe penetrates to the inside of the cover shell. Ventilation holes are penetrated on the surface of the cover shell, and ventilation grooves are also opened on the surface of the housing. A flower column is also arranged on the top of the housing.

[0008] A lifting component and a knocking component.

[0009] Preferably, the lifting component includes a driving motor, a cross bar and a screw rod. The driving motor is bolted inside the housing. The cross bar is rotatably connected to the inner wall of the housing. The number of the screw rods is two groups and they are rotatably connected to the inner wall of the housing. Cross plates are bolted on both sides inside the housing, and the screw rods are rotatably connected to the surfaces of the cross plates. A threaded sleeve is threadedly connected to the surface of the screw rod. A fixing rod is bolted to one side of the threaded sleeve. Sliding sleeves are penetrated on both sides of the bottom of the housing, and the fixing rod is slidably connected to the inner wall of the sliding sleeve. The other end of the fixing rod is bolted to the base.

[0010] Preferably, movable rods are bolted at the four corners of the top of the base. The movable rods penetrate the surface of the bottom of the housing and are slidably connected to the inner wall at the penetration part.

[0011] Preferably, a first sensor is fixed to the bottom of the cross plate, and a second sensor is also fixed to the bottom of the inner wall of the housing.

[0012] Preferably, both the first sensor and the second sensor are pressure sensors.

[0013] Preferably, the lifting component further includes a transmission column. The bottom end of the transmission column is connected to the cross bar through bevel gears. The top end of the transmission column penetrates above the housing and is bolted to the bottom of the flower column.

[0014] Preferably, the knocking component includes an elliptical wheel, a roller and a compression spring. The elliptical wheel is bolted to one side of the surface of the cross bar. A sleeve is penetrated on the front of the housing. A movable column is slidably connected to the inner wall of the sleeve. One end of the movable column is bolted to the roller. One end of the compression spring is fixed to the roller, and the other end of the compression spring is fixed to the sleeve. A connecting plate is also bolted to the other end of the movable column, and an impact block is adhered to the surface of the connecting plate.

[0015] Preferably, the impact block is designed in a square shape, and the material of the impact block is rubber.

[0016] Preferably, a dust-proof net is bolted at the entrance of the inlet channel.

[0017] Preferably, the compression spring is sleeved on the surface of the movable column.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. By starting the driving motor to drive the cross bar and the screw rod to rotate, the threaded sleeve drives the fixed rod to move, thereby shortening or expanding the distance between the housing and the base, enabling the speaker to have a lifting function, and further enabling the speaker to adjust its height and adjust the sound field positioning according to the seating position. At the same time, the structure of rotating the middle flower column cooperates with the lifting action to produce a mechanical aesthetic display, increasing the interest of the speaker.

[0020] 2. By starting the cross bar to drive the elliptical wheel to rotate, combined with the cooperation of the roller, the compression spring and the movable column, the connecting plate and the impact block are driven to move repeatedly, so that the impact block knocks on the surface of the filter net body to prevent the surface from being covered with dust. At the same time, combined with the fan, the air outlet cover, the connecting pipe and the communicating pipe, etc., the power amplifier and the circuit can be cooled to ensure their stable operation and avoid faults such as a decrease in output power and sound distortion. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the present invention;

[0022] Figure 2 is a schematic structural diagram of the rear view angle of the present invention;

[0023] Figure 3 is a schematic sectional structure diagram of the housing of the present invention;

[0024] Figure 4 is the present invention Figure 3 an enlarged structural diagram of part A in;

[0025] Figure 5 is a schematic partial structure diagram of the present invention;

[0026] Figure 6 is a sectional view of the cover housing of the present invention;

[0027] Figure 7 is a schematic structural diagram of the communicating pipe of the present invention;

[0028] Figure 8 is a schematic structural diagram of the connecting pipe of the present invention.

[0029] In the figure: 1, base; 2, housing; 3, cover; 4, filter body; 5, power amplifier body; 6, circuit board body; 7, inlet channel; 8, fan; 9, dust-proof net; 10, first cover; 11, connecting pipe; 12, air outlet cover; 13, second cover; 14, communicating pipe; 15, lifting assembly; 151, drive motor; 152, cross bar; 153, screw rod; 154, threaded sleeve; 155, cross plate; 156, first sensor; 157, second sensor; 158, fixed rod; 159, sliding sleeve; 1510, movable rod; 1511, transmission column; 16, ventilation slot; 17, ventilation hole; 18, flower column; 19, knocking assembly; 191, elliptical wheel; 192, roller; 193, compression spring; 194, impact block; 195, sleeve; 196, movable column; 197, connecting plate. Detailed implementation mode

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figures 1-8 As shown, a vehicle-mounted speaker with a lifting structure includes a base 1, a housing 2, a filter body 4, a power amplifier body 5 and a circuit board body 6. A control module is arranged on the surface of the circuit board body 6. The speaker further includes a lifting assembly 15 and a knocking assembly 19. A cover 3 penetrates through the surface of the housing 2. The power amplifier body 5 is fixed inside the cover 3. The circuit board body 6 is bolted to the inner side of the housing 2. The filter body 4 is fixed in front of the inner side of the cover 3. An inlet channel 7 penetrates through the rear side of the housing 2. A fan 8 is bolted to the inner wall of the inlet channel 7. A dust-proof net 9 is also bolted at the entrance of the inlet channel 7 to prevent external dust from entering. The upper and lower sides at the other end of the inlet channel 7 are respectively communicated with a first cover 10 and a second cover 13. The other side of the first cover 10 is communicated with a connecting pipe 11. The other end of the connecting pipe 11 is communicated with an air outlet cover 12, and the air outlet cover 12 is located on the side of the circuit board body 6. The other side of the second cover 13 is also communicated with a communicating pipe 14. The other end of the communicating pipe 14 penetrates to the inner side of the cover 3. Ventilation holes 17 are penetrated through the surface of the cover 3. Ventilation slots 16 are also opened on the surface of the housing 2. The ventilation slots 16 correspond to the ventilation holes 17. A flower column 18 is also arranged on the top of the housing 2.

[0032] During use, the base 1 is fixed inside the vehicle. The lifting assembly 15 includes a driving motor 151, a cross bar 152, and a screw rod 153. The driving motor 151 is bolted inside the housing 2. The cross bar 152 is rotatably connected to the inner wall of the housing 2. The number of screw rods 153 is two and they are rotatably connected to the inner wall of the housing 2. On both sides inside the housing 2, there are also bolted cross plates 155, and the screw rod 153 is rotatably connected to the surface of the cross plate 155 to increase the rotational stability of the screw rod 153. A threaded sleeve 154 is threadedly connected to the surface of the screw rod 153. One side of the threaded sleeve 154 is bolted with a fixing rod 158. On both sides of the bottom of the housing 2, there are through sliding sleeves 159, and the fixing rod 158 is slidably connected to the inner wall of the sliding sleeve 159. The other end of the fixing rod 158 is bolted to the base 1. At the four corners of the top of the base 1, there are also bolted movable rods 1510. The movable rods 1510 penetrate the surface of the bottom of the housing 2 and are slidably connected to the inner wall at the penetration point. When it is necessary to adjust the height of the speaker itself, the driving motor 151 can be turned on. The output shaft of the driving motor 151 is connected to the cross bar 152 through gear transmission. The output shaft of the driving motor 151 drives the cross bar 152 to rotate through gears. The cross bar 152 is respectively connected to the screw rods 153 on both sides through bevel gear transmission. The cross bar 152 drives the screw rods 153 to rotate through bevel gears. Then, the threaded sleeve 154 on the surface of the screw rod 153 drives the threaded sleeve 154 and the fixing rod 158 to move away from the cross plate 155, thereby lifting the housing 2 and the power amplifier body 5 upward, so as to adjust the height of the speaker itself. A first sensor 156 is fixed to the bottom of the cross plate 155. A second sensor 157 is also fixed to the bottom of the inner wall of the housing 2. Both the first sensor 156 and the second sensor 157 are pressure sensors. Both the first sensor 156 and the second sensor 157 are electrically connected to the control module on the surface of the circuit board body 6. During the downward movement of the threaded sleeve 154, it will touch the second sensor 157. Then, the control module controls the driving motor 151 to turn off. If it is necessary to lower the height of the speaker, only need to turn on the driving motor 151 to drive the threaded sleeve 154 to move towards the cross plate 155, thereby driving the fixing rod 158 to move upward, shortening the distance between the base 1 and the housing 2, reducing the height of the speaker, and thus enabling the speaker to adjust its height and adjust the sound field positioning according to the seating position. At the same time, the housing 2 can slide up and down along the surface of the movable rod 1510, increasing the stability of the lifting function of the speaker.

[0033] The lifting assembly 15 further includes a transmission column 1511. The bottom end of the transmission column 1511 is connected to the cross bar 152 through bevel gears. The top end of the transmission column 1511 penetrates above the housing 2 and is bolted to the bottom of the flower column 18. The transmission column 1511 is rotatably connected to the penetration part of the housing 2. During the lifting process of the speaker, the cross bar 152 can drive the transmission column 1511 and the flower column 18 to rotate through bevel gears. The structure of the rotating flower column 18 cooperates with the lifting action to generate a mechanical aesthetics display, becoming a dynamic visual center in the cockpit and enhancing the technological atmosphere.

[0034] During the use of the speaker, the fan 8 is turned on, which allows the external air to enter the interiors of the first cover body 10 and the second cover body 13 respectively through the air inlet channels 7. After passing through the connecting pipe 11, it blows towards the surface of the circuit board body 6 from the air outlet cover 12 to cool the circuit board body 6. Then the flowing air is discharged through the ventilation slots 16. On the other hand, the air passes through the second cover body 13 and the connecting pipe 14 and then enters the interior of the housing 3 to cool the power amplifier body 5. The air is discharged through the ventilation holes 17 and the ventilation slots 16.

[0035] The knocking assembly 19 includes an elliptical wheel 191, a roller 192 and a compression spring 193. The elliptical wheel 191 is bolted to one side of the surface of the cross bar 152. A sleeve 195 is also penetrated through the front surface of the housing 2. The inner wall of the sleeve 195 is slidably connected with a movable column 196. One end of the movable column 196 is bolted to the roller 192. One end of the compression spring 193 is fixed to the roller 192. The other end of the compression spring 193 is fixed to the sleeve 195. The compression spring 193 is sleeved on the surface of the movable column 196. The other end of the movable column 196 is also bolted with a connecting plate 197. An impact block 194 is adhered to the surface of the connecting plate 197. The impact block 194 is designed in a square shape, and the material of the impact block 194 is rubber. The compression spring 193 gives the roller 192 and the movable column 196 a force towards the elliptical wheel 191, making the roller 192 fit on the surface of the elliptical wheel 191. If there is some dust on the surface of the filter element body 4, during the rotation of the cross bar 152, it drives the elliptical wheel 191 to rotate together. When the long radius end of the elliptical wheel 191 contacts the roller 192, the movable column 196 and the roller 192 move forward. When the short radius end of the elliptical wheel 191 contacts the roller 192, the movable column 196 and the roller 192 move backward. In this way, the movable column 196 drives the impact block 194 to move repeatedly, knocking on the surface of the filter element body 4 to knock off the dust on the surface of the filter element body 4 and ensure the sound quality of the speaker.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An in-vehicle speaker with a lifting structure, including a base (1), a housing (2), a filter body (4), a power amplifier body (5) and a circuit board body (6), characterized in that, Further included are: A cover housing (3) penetratingly arranged on the surface of the housing (2), the power amplifier body (5) is fixed inside the cover housing (3), the circuit board body (6) is bolted to the inner side of the housing (2), the filter screen body (4) is fixed in front of the inner side of the cover housing (3), an air inlet channel (7) is penetratingly arranged at the rear side of the housing (2), and a fan (8) is bolted to the inner wall of the air inlet channel (7); A first cover body (10) and a second cover body (13) which are communicatively arranged on the upper and lower sides at the other end of the air inlet channel (7), a connecting pipe (11) is communicatively arranged on the other side of the first cover body (10), the other end of the connecting pipe (11) is communicatively arranged with an air outlet cover (12), and the air outlet cover (12) is located on the side of the circuit board body (6), a communicating pipe (14) is also communicatively arranged on the other side of the second cover body (13), the other end of the communicating pipe (14) penetrates to the inner side of the cover housing (3), a ventilation hole (17) is penetratingly opened on the surface of the cover housing (3), a ventilation groove (16) is also opened on the surface of the housing (2), and a flower column (18) is also arranged on the top of the housing (2); A lifting assembly (15) and a knocking assembly (19).

2. The vehicle-mounted speaker with a lifting structure according to claim 1, wherein: The lifting assembly (15) includes a driving motor (151), a cross bar (152) and a screw rod (153), the driving motor (151) is bolted inside the housing (2), the cross bar (152) is rotatably connected to the inner wall of the housing (2), the number of the screw rods (153) is two groups and they are rotatably connected to the inner wall of the housing (2), cross plates (155) are bolted on both sides inside the housing (2), and the screw rods (153) are rotatably connected to the surfaces of the cross plates (155), a threaded sleeve (154) is threadedly connected to the surface of the screw rod (153), a fixing rod (158) is bolted on one side of the threaded sleeve (154), sliding sleeves (159) are penetratingly arranged on both sides of the bottom of the housing (2), and the fixing rod (158) is slidably connected to the inner wall of the sliding sleeve (159), and the other end of the fixing rod (158) is bolted to the base (1).

3. The vehicle-mounted speaker with a lifting structure according to claim 1, wherein: Moving rods (1510) are bolted at the four corners of the top of the base (1), and the moving rods (1510) penetrate the surface of the bottom of the housing (2) and are slidably connected to the inner wall at the penetrating part.

4. The vehicle-mounted speaker with a lifting structure according to claim 2, wherein: A first sensor (156) is fixed at the bottom of the cross plate (155), and a second sensor (157) is also fixed at the bottom of the inner wall of the housing (2).

5. The vehicle-mounted speaker with a lifting structure according to claim 4, characterized in that: Both the first sensor (156) and the second sensor (157) are pressure sensors.

6. The vehicle-mounted speaker with a lifting structure according to claim 2, wherein: The lifting assembly (15) further includes a transmission column (1511), the bottom end of the transmission column (1511) is in transmission connection with the cross bar (152) through bevel gears, and the top end of the transmission column (1511) penetrates above the housing (2) and is bolted to the bottom of the flower column (18).

7. The in-vehicle speaker with a lifting structure according to claim 2, characterized in that: The knocking component (19) includes an elliptical wheel (191), a roller (192) and a compression spring (193). The elliptical wheel (191) is bolted to one side of the surface of the cross bar (152). A sleeve (195) is also penetrated through the front surface of the housing (2). An active column (196) is slidably connected to the inner wall of the sleeve (195). One end of the active column (196) is bolted to the roller (192). One end of the compression spring (193) is fixed to the roller (192), and the other end of the compression spring (193) is fixed to the sleeve (195). A connecting plate (197) is also bolted to the other end of the active column (196), and an impact block (194) is adhered to the surface of the connecting plate (197).

8. The vehicle-mounted speaker with a lifting structure according to claim 7, characterized in that: The impact block (194) is designed in a square shape, and the material of the impact block (194) is rubber.

9. The vehicle-mounted speaker with a lifting structure according to claim 1, characterized in that: A dust-proof net (9) is also bolted to the entrance of the inlet channel (7).

10. The vehicle-mounted speaker with a lifting structure according to claim 7, characterized in that: The compression spring (193) is sleeved on the surface of the active column (196).

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