Automobile loudspeaker capable of being opened, closed, lifted and lowered

Abstract

An automobile loudspeaker capable of being opened, closed and lifted belongs to the field of automobile electronics, a micro motor is used for driving a worm to drive a fan-shaped bevel gear, and a sliding groove and a chute are combined for transmission, so that an action simulating opening and closing of a fan-shaped petal cover is added while the loudspeaker ascends and descends; the utility model has the advantages of compact integral structure, low noise, small volume, damping increase, good stability, good shock resistance and low cost.

Description

Technical Field

[0001] This utility model belongs to the field of automotive electronics technology, specifically relating to a car speaker with lifting function and petal-shaped cover opening and closing structure, aiming to improve the visual comfort, fun and user experience of car speakers. Background Technology

[0002] Most existing car speakers are fixed designs, generally stationary and offering only basic speaker functions. They lack variety and fail to appeal to young people, appearing outdated and dull. Only a small number of new energy vehicles and high-end models use simple lift-up structures for their speakers. While these structures can improve the speaker's dynamism, increase its recognizability and visual appeal, and enhance the product's value, their limited movement lacks visual appeal. Furthermore, complex movements require multiple motors, resulting in higher costs, larger size, and significant noise. In addition, the limited functionality of traditional speakers fails to meet the demands of young users for a sense of technology and a sense of occasion. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned defects and provide an openable and retractable car speaker. The speaker's lifting and lowering and the petal-shaped cover's opening and closing are coordinated by a single motor, reducing cost and size, enhancing visual comfort, and, combined with lighting effects, improving the sense of ceremony and fun of starting the car.

[0004] The purpose of this utility model is achieved through the following technical solution: an openable and height-adjustable car speaker, comprising a base, a miniature HB motor with a worm gear, a speaker bracket, a spherical shell, a top cover, and a sector-shaped helical gear; the miniature HB motor is installed on one side of the base, the worm gear is installed on the shaft of the miniature HB motor, the speaker bracket is placed inside the inner ring of the base, the speaker bracket is composed of an upper bracket and a lower bracket, four horizontal grooves are arranged circumferentially between the upper bracket and the lower bracket, the horizontal grooves extend towards the lower bracket, forming oblique grooves on the lower bracket, the speaker is fixed above the upper bracket of the speaker, the upper bracket of the speaker... Two vertical grooves are symmetrically arranged on the outer side wall of the frame. The spherical shell includes an outer shell and an inner shell. The outer shell and the inner shell are respectively composed of an upper hemisphere and a lower hemisphere connected to each other. Four pin holes are evenly distributed circumferentially at the upper end of the upper hemisphere of the inner shell. The lower hemisphere of the inner shell is composed of an upper hemispherical part and a lower support part. Four horizontal grooves are evenly distributed between the hemispherical part and the support part. These four horizontal grooves correspond one-to-one with the four horizontal grooves between the upper and lower supports of the speaker. The upper hemisphere and the lower hemisphere of the inner shell are connected and fixed, with four horizontal grooves evenly distributed between them. The inner shell is installed on the outside of the speaker and the speaker support and fixed on the inner ring of the base. The lower hemisphere has a vertical guide plate on its inner side. The guide plate is inserted into a vertical groove on the outer wall of the speaker bracket and slides up and down within the groove. Four pin holes are evenly spaced along the circumference of the upper and lower ends of the lower hemisphere, corresponding one-to-one with the pin holes at the upper and lower ends. Similarly, four pin holes are evenly spaced along the circumference of the lower end of the upper hemisphere, corresponding one-to-one with the pin holes at the upper end of the lower hemisphere. The outer shell is mounted on the outside of the inner shell. The lower hemisphere rests on a protrusion on the inner ring of the base. The upper cover is formed by four fan-shaped petals creating a spherical top. Each fan-shaped petal has a groove along a radius and a pin hole at its central angle. The pins are sequentially inserted into the pin holes at the lower end of the lower hemisphere of the outer shell, the horizontal groove between the hemispherical part and the support part of the lower hemisphere of the inner shell, and the horizontal groove between the upper and lower supports of the speaker. The pins are sequentially inserted into the pin holes at the upper end of the lower hemisphere of the outer shell, the pin holes in the upper hemisphere of the outer shell, the sliding groove of the fan-shaped petals, and the pin holes between the upper and lower hemispheres of the inner shell, connecting the upper and lower hemispheres of the outer shell, the fan-shaped petals, and the inner shell. The rivet pins are inserted into the pin holes of the fan-shaped petals and the upper hemisphere of the inner shell, connecting the fan-shaped petals to the upper hemisphere of the inner shell. The four fan-shaped petals rotate around the pin holes and sliding grooves to form a spherical top cover. The fan-shaped helical gear is fixed on the lower hemisphere of the outer shell and meshes with the worm gear.

[0005] The lower bracket of the speaker bracket has a groove along its circumference, and a lifting damping ring is installed in the groove.

[0006] The outer wall of the speaker has a groove along its circumference, and a lifting damping ring is installed in the groove.

[0007] The outer wall of the support portion of the lower hemisphere of the inner shell is provided with a groove along its circumference, and a lifting damping ring is installed in the groove.

[0008] The LED aluminum substrate is installed on the inner side of the upper hemisphere of the inner shell, fixed to the upper hemisphere of the inner shell, and surrounds the outer periphery of the speaker. A light guide ring is installed above the LED aluminum substrate and surrounds the outer side of the speaker.

[0009] The control board is installed inside the base, below the speaker bracket. Three Hall sensors and one magnet are installed at intervals on the control board, located at the bottom of the sector gear. A magnetic encoder is installed on one side of the base. The magnet sleeve is opposite to the magnetic encoder and is installed at one end of the worm gear. A magnet is installed inside the magnet sleeve.

[0010] The beneficial effects of this utility model are:

[0011] 1. Installing lifting dampers on the speakers and speaker brackets may reduce transmission efficiency and increase resistance torque, but it can eliminate movement gaps, thereby greatly improving the smoothness of movement, making the car run smoothly even when bumpy.

[0012] 2. Compared with traditional car speakers, this device features fan-shaped petals opening and a speaker rising from the center. Utilizing a unique sliding drive system, one motor can drive four fan-shaped petals and one speaker to complete two-dimensional movement without interference. Installed inside the center console, it is small in size (approximately 102x94x102mm), lightweight (around 500g), and has low noise (not exceeding 35dB). This simplifies movement control, improves stability, and reduces costs.

[0013] 3. It also has a simple dustproof function. Attached Figure Description

[0014] Figure 1 This is an axonometric view of the fan-shaped petals of this utility model in one direction when they are closed.

[0015] Figure 2 This is a front view of the fan-shaped petals of this utility model when they are closed.

[0016] Figure 3 This is a front view of the present invention with the outer upper hemisphere hidden when the fan-shaped petals are opened.

[0017] Figure 4 This is a left-side cross-sectional view of the present invention when the fan-shaped petals are closed, at which point the speaker is fully lowered.

[0018] Figure 5 This is a rear cross-sectional view of the present invention when the fan-shaped petals are closed, at which point the speaker is fully lowered.

[0019] Figure 6This is a partial cross-sectional top view of the fan-shaped petals of this utility model when they are open, at which point the speaker is fully raised.

[0020] Figure 7 This is a top view of the fan-shaped petals of this utility model when they are closed, at which point the speaker is fully lowered.

[0021] Figure 8 This is a rear cross-sectional view of the fan-shaped petals of this utility model when they are open, at which point the speaker is fully raised.

[0022] Figure 9 This is a cross-sectional view of the fan-shaped petals of this utility model when they are opened, through the rivet pins of the fan-shaped petals, at which point the speaker is fully raised.

[0023] Figure 10 This is an isometric view of the present invention from another direction.

[0024] In the picture:

[0025] 1-Upper hemisphere of inner shell, 1-1-Horizontal groove, 2-Lower hemisphere of inner shell, 3-Fan-shaped petal, 4-Upper hemisphere of outer shell, 5-Lower hemisphere of outer shell, 6-Pin shaft, 7-Fan-shaped helical gear, 8-Speaker bracket, 8-1-Upper bracket, 8-2-Lower bracket, 8-3-Horizontal groove, 8-4-Slanted groove, 9-Base, 10-Miniature HB motor with worm gear, 10-1 Worm gear, 11-Light guide ring, 12-LED aluminum substrate, 13-Rivet pin, 14-Lifting damping ring, 15-Self-tapping screw, 17-Self-tapping screw, 18-Control board PCB with Hall switch, 19-PCB with magnetic encoder, 20-Magnet sleeve, 21-Magnet, 22-Nylon gasket, 23-Lifting damping ring, 24-Speaker, 25-Self-tapping screw, 26-Magnet, 28-Slide groove, 29-Vertical groove, 30-Vertical guide plate, 31-Hall sensor. Detailed Implementation

[0026] Example: As shown in the figure, an openable and height-adjustable car speaker includes a base 9, a miniature HB motor 10 with a worm gear, a speaker bracket 8, a spherical housing, a top cover, and a sector helical gear 7. The miniature HB motor 10 is mounted on one side of the base 9, and a precision worm gear 10-1 is mounted on the shaft of the miniature HB motor 10. The speaker bracket 8 is placed inside the inner ring of the base 9. The speaker bracket 8 is composed of an upper bracket 8-1 and a lower bracket 8-2 fixed together by self-tapping screws 15. Four horizontal grooves 8-3 are spaced circumferentially between the upper bracket 8-1 and the lower bracket 8-2, extending downwards towards the lower bracket 8-2 to form oblique grooves 8-4 on the lower bracket 8-2. The speaker 24 is fixed to the speaker... Above the upper bracket 8-1, two vertical grooves 29 are symmetrically arranged on the outer side wall of the upper bracket 8-1 of the speaker 24. The spherical shell includes an outer shell and an inner shell that provides fixed support. The outer shell is composed of an upper outer shell hemisphere 4 and a lower outer shell hemisphere 5 connected to each other. The inner shell is composed of an upper inner shell hemisphere 1 and an inner shell hemisphere 2 connected to each other. The upper end of the upper inner shell hemisphere 1 has four pin holes evenly distributed circumferentially. The lower inner shell hemisphere 2 is composed of an upper hemispherical part and a lower support part. Four horizontal grooves are evenly distributed between the hemispherical part and the support part. These four horizontal grooves correspond one-to-one with the four horizontal grooves between the upper and lower brackets of the speaker. The upper inner shell hemisphere 1 and the lower inner shell hemisphere 2 are connected and fixed, with four horizontal grooves 1-1 evenly distributed between them. The shell is installed on the outside of the speaker 24 and the speaker bracket 8, and fixed on the inner ring of the base 9. The horizontal groove 1-1 corresponds to the space between the speaker bracket and the speaker. The inner shell lower hemisphere 2 has a vertical guide plate 30 on its inner side. The vertical guide plate 30 is inserted into the vertical groove 29 on the outer side wall of the speaker upper bracket 8-1 and slides up and down in the vertical groove 29. The upper and lower ends of the outer shell lower hemisphere 5 are each evenly spaced with four pin holes along their circumference, and the pin holes at the upper and lower ends correspond one-to-one. The lower end of the outer shell upper hemisphere 4 is also evenly spaced with four pin holes along its circumference, and these pin holes correspond one-to-one with the pin holes at the upper end of the outer shell lower hemisphere 5. The outer shell is installed on the outside of the inner shell, and the outer shell lower hemisphere 5 is placed on the convex part of the inner ring of the base 9. On the platform, the upper cover is formed by four fan-shaped petals 3 surrounding a spherical top. Each fan-shaped petal 3 has a groove 28 along a radius and a pin hole at the central corner. The pins 6 are sequentially inserted into the pin hole at the lower end of the outer shell lower hemisphere 5, the horizontal groove between the hemispherical part and the support part of the inner shell lower hemisphere 2, and the horizontal groove 8-3 between the upper support 8-1 and the lower support 8-2 of the speaker. The pins 6 are also sequentially inserted into the pin hole at the upper end of the outer shell lower hemisphere 5, the pin hole of the outer shell upper hemisphere 4, the groove 28 of the fan-shaped petals 3, and the pin hole between the upper hemisphere 1 and the lower hemisphere 2 of the inner shell, connecting the upper and lower hemispheres 4 and 5, the fan-shaped petals 3, and the inner shell. The rivet pins 13 are inserted into the pin holes of the fan-shaped petals 3 and the upper hemisphere 1 of the inner shell, connecting the fan-shaped petals 3 to the upper hemisphere 1 of the inner shell.Four fan-shaped petals 3 rotate around the pin hole and the sliding groove 28 to form a spherical top cover. Nylon gaskets 22 are fitted between the fan-shaped petals 3 and the pin hole of the upper hemisphere 1 of the inner shell. The fan-shaped helical gear 7 is fixed to the lower hemisphere 5 of the outer shell by self-tapping screws 17 and meshes with the worm gear 10-1.

[0027] The lower bracket 8-2 of the speaker bracket has a groove along its circumference, and a lifting damping ring 14 is installed in the groove.

[0028] The outer wall of the speaker 24 is provided with a groove along its circumference, and a lifting damping ring 14 is installed in the groove.

[0029] The lower hemisphere 2 of the inner shell has a groove along its circumference on the outer wall of the support portion, and a lifting damping ring 23 is installed in the groove.

[0030] The LED aluminum substrate 12 is installed on the inner side of the upper hemisphere 1 of the inner shell, fixed to the upper hemisphere 1 of the inner shell, and surrounds the outer periphery of the speaker 24. A light guide ring 11 is installed above the LED aluminum substrate 12 and surrounds the outer side of the speaker 24.

[0031] The control board 18 is installed inside the base 9, below the speaker bracket 8. Three Hall sensors 31 and one neodymium iron boron magnet 21 are installed at intervals on the control board 18, located at the bottom of the sector helical gear 7. The Hall sensors correspond to three position states: 1. The top cover of the sector petal with the groove is completely closed, and the speaker is at the bottom; 2. The top cover of the sector petal with the groove is completely open, and the speaker is at the bottom; 3. The top cover of the sector petal with the groove is completely open, and the speaker is at the top, fully raised. These three positions are detected by the neodymium iron boron magnet installed at the bottom of the sector helical gear. The Hall sensors detect the position state of the top cover of the sector petal and the speaker. A magnetic encoder 19 is installed on one side of the base 9. The magnet sleeve 20 is opposite to the magnetic encoder 19 and is installed at one end of the worm gear 10-1. The neodymium iron boron magnet 21 is installed inside the magnet sleeve 20.

[0032] Working principle:

[0033] When the precision worm gear is driven to rotate by the motor, the sector helical gear drives the spherical shell to rotate vertically along the center of the sphere, thereby moving the upper and lower rows of pins. The upper row of four pins moves within the slide groove, causing the sector petals to rotate along the hollow pins, opening or closing simultaneously. The lower row of four pins moves into the inclined groove, causing the speaker bracket to move up and down. When the lower row of four pins passes through this horizontal groove, it coincides with the upper row of four pins driving the sector petals to rotate along the hollow pins to open or close. The horizontal groove of the speaker bracket does not cause the speaker bracket to rise or fall, but when the lower row of four pins passes through the inclined section of the inclined groove... This will push the speaker bracket to move up and down. The vertical grooves and vertical guide plates on the side wall of the speaker bracket cooperate to restrict its rotation, thereby driving the speaker to complete the lifting and lowering action. The upper row of pins drives the four fan-shaped petal covers to rotate around the hollow rivets, realizing the opening and closing action of the fan-shaped petals. At the same time, the lower row of pins causes the spliced ​​speaker bracket with inclined grooves to slide up and down in the spherical inner shell. The inclined grooves and horizontal grooves are combined to ensure that the opening and closing and lifting actions are separated in sequence, so that the speaker bracket, carrying the speaker, stops in the spherical inner shell in conjunction with the opening and closing of the fan-shaped petal covers, and its up and down sliding, thus enabling a motor to achieve two-dimensional motion.

[0034] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the technical principles of the present invention and should not be construed as limiting the scope of protection of the present invention in any way. Based on this explanation, those skilled in the art can conceive of other specific embodiments of the present invention without creative effort, and all of them will fall within the scope of protection of the present invention.

Claims

1. A retractable and height-adjustable car speaker, comprising a base, a miniature HB motor with a worm gear, a speaker bracket, a spherical housing, a top cover, and a sector helical gear; the miniature HB motor is mounted on one side of the base, the worm gear is mounted on the shaft of the miniature HB motor, the speaker bracket is placed inside the inner ring of the base, the speaker bracket is composed of an upper bracket and a lower bracket, four horizontal grooves are circumferentially spaced between the upper and lower brackets, the horizontal grooves extend downwards towards the lower bracket, forming oblique grooves on the lower bracket, the speaker is fixed above the upper bracket of the speaker, and two vertical grooves are symmetrically arranged on the outer side wall of the upper bracket of the speaker. The spherical shell includes an outer shell and an inner shell, each composed of an upper and lower hemisphere connected to each other. The upper hemisphere of the inner shell has four pin holes evenly distributed circumferentially at its upper end. The lower hemisphere of the inner shell consists of an upper hemispherical portion and a lower support portion. Four horizontal grooves are evenly distributed between the hemispherical portion and the support portion, corresponding one-to-one with the four horizontal grooves between the upper and lower supports of the speaker. The upper and lower hemispheres of the inner shell are connected and fixed, with four horizontal grooves evenly distributed between them. The inner shell is installed on the outside of the speaker and speaker support, fixed to the inner ring of the base. The hemispherical portion of the lower hemisphere of the inner shell... A vertical guide plate is provided on the side, which is inserted into a vertical groove on the outer wall of the speaker bracket. The vertical guide plate slides up and down in the vertical groove. Four pin holes are evenly distributed at intervals along the circumference of the upper and lower ends of the outer shell, with the upper and lower pin holes corresponding one-to-one. Similarly, four pin holes are evenly distributed at intervals along the circumference of the lower end of the outer shell, corresponding one-to-one with the pin holes at the upper end of the lower hemisphere. The outer shell is installed outside the inner shell, and the lower hemisphere rests on the protrusion on the inner ring of the base. The upper cover is formed by four fan-shaped petals forming a spherical top. Each fan-shaped petal has a groove along a radius and a pin hole at its central corner. The pins are arranged sequentially... The pins are inserted into the lower end of the outer shell's lower hemisphere, the horizontal groove between the hemispherical part and the support part of the inner shell's lower hemisphere, and the horizontal groove between the upper and lower supports of the speaker. The pins are sequentially inserted into the pin holes at the upper end of the outer shell's lower hemisphere, the pin holes of the outer shell's upper hemisphere, the sliding grooves of the fan-shaped petals, and the pin holes between the upper and lower hemispheres of the inner shell, connecting the upper and lower hemispheres of the outer shell, the fan-shaped petals, and the inner shell. The rivet pins are inserted into the pin holes of the fan-shaped petals and the upper hemisphere of the inner shell, connecting the fan-shaped petals to the upper hemisphere of the inner shell. The four fan-shaped petals rotate around the pin holes and sliding grooves to form a spherical top cover. The fan-shaped helical gear is fixed on the lower hemisphere of the outer shell and meshes with the worm gear.

2. The foldable and elevatable car speaker of claim 1, wherein: The lower bracket of the speaker bracket has a groove along its circumference, and a lifting damping ring is installed in the groove.

3. The openable and retractable car speaker according to claim 1, characterized in that: The outer wall of the speaker has a groove along its circumference, and a lifting damping ring is installed in the groove.

4. The foldable and elevatable car speaker of claim 1, wherein: The outer wall of the support portion of the lower hemisphere of the inner shell is provided with a groove along its circumference, and a lifting damping ring is installed in the groove.

5. The openable and retractable car speaker according to claim 1, characterized in that: The LED aluminum substrate is installed on the inner side of the upper hemisphere of the inner shell, fixed to the upper hemisphere of the inner shell, and surrounds the outer periphery of the speaker. A light guide ring is installed above the LED aluminum substrate and surrounds the outer side of the speaker.

6. The foldable and elevatable automotive speaker of claim 1, wherein: The control board is installed inside the base, below the speaker bracket. Three Hall sensors and one magnet are installed at intervals on the control board, located at the bottom of the sector gear. A magnetic encoder is installed on one side of the base. The magnet sleeve is opposite to the magnetic encoder and is installed at one end of the worm gear. A magnet is installed inside the magnet sleeve.

Images