Automobile projection curtain motor

Abstract

The utility model relates to an automobile projection curtain motor, comprising a housing assembly comprising a bottom housing and a cover plate, the housing assembly is internally provided with a power cavity and a variable speed cavity which are communicated along the length direction, two ends of the power cavity are respectively provided with a support seat, and a plurality of first shaft sleeves are arranged on the bottom housing and the cover plate in the variable speed cavity in a one-to-one correspondence manner; the motor is arranged in the power cavity, the two ends of the motor are supported through supporting seats, and a rotating shaft of the motor extends into the speed changing cavity; the worm is positioned in the speed change cavity and sleeves the rotating shaft; the transmission module comprises a worm gear, a transmission wheel, a change gear set, an output wheel and an output shaft which are sequentially in transmission connection, the worm gear is in transmission connection with the worm, the change gear set is composed of a plurality of transmission gears, the output shaft is fixed to the middle of the output wheel, and the transmission wheel and the worm gear form a duplicate gear; the worm gear, the center shaft of the transmission wheel and the center shaft of the transmission gear are assembled through a first shaft sleeve, one end of the output shaft extends out of the speed change cavity, and the other end is assembled through a second shaft sleeve arranged on the cover plate or the bottom shell.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a motor for an automobile projection screen. Background Art

[0002] With the advancement of automotive technology, people are demanding more than just a means of transportation; they are also demanding higher levels of comfort and entertainment. Projection screens are gaining market favor due to their convenience, ease of replacement, and foldability. Car projection screen motors are used to raise and lower projection screens inside cars, but existing motors are too large, difficult to install, have poor stability, and low torque, making them inadequate for these needs. Utility Model Content

[0003] In view of the above situation, it is necessary to propose a car projection screen motor with large torque and strong stability.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a car projection screen motor, comprising:

[0005] The housing assembly includes a bottom shell and a cover plate. The housing assembly is provided with a power chamber and a speed change chamber connected along the length direction. A support seat is provided at each end of the power chamber. A plurality of first shaft sleeves are provided on the bottom shell and the cover plate in a one-to-one correspondence within the speed change chamber.

[0006] a motor, disposed in the power cavity, with both ends of the motor supported by the support base, and a rotating shaft of the motor extending into the speed change cavity;

[0007] A worm is located in the speed change cavity and sleeved on the rotating shaft;

[0008] The transmission module includes a worm gear, a transmission wheel, a speed change gear set, an output wheel and an output shaft that are sequentially connected in transmission. The worm gear is connected to the worm, the speed change gear set is composed of a number of transmission gears, the output shaft is fixed to the middle of the output wheel, the transmission wheel and the worm gear form a double gear, the central axis of the worm gear and the transmission wheel, and the central axis of the transmission gear are all assembled through the first shaft sleeve, one end of the output shaft extends out of the speed change cavity, and the other end is assembled through the second shaft sleeve set on the cover plate or the bottom shell.

[0009] Furthermore, a bearing is provided at each end of the output wheel.

[0010] Furthermore, a gasket is provided at both ends of the double gear composed of the transmission wheel and the worm gear and at both ends of the transmission gear.

[0011] Furthermore, the transmission gears are all double gears.

[0012] Furthermore, the support seat has a support hole, and both ends of the motor are provided with protrusions adapted to the support holes. The protrusions surround the rotating shaft and are provided with avoidance holes for the rotating shaft to extend out.

[0013] Furthermore, it also includes a wire outlet hole connected to the power cavity, the wire outlet hole is formed by the bottom shell and the cover plate, and the cable is electrically connected to the motor through the wire outlet hole.

[0014] Furthermore, a clamping block is provided on the cable, and the clamping block is clamped with the cable outlet.

[0015] Furthermore, the open end of the bottom shell is provided with a sinking groove, and the cover plate is provided with a protrusion adapted to the sinking groove.

[0016] Furthermore, a plurality of reinforcing ribs are provided on the bottom shell and the cover plate.

[0017] Furthermore, the bottom shell is provided with a recessed portion at one end away from the power chamber, and the output shaft extends from the recessed portion.

[0018] The beneficial effects of this utility model include: a worm gear is provided on the motor output shaft, which cooperates with a worm gear to transmit power. The worm gear and worm gear have a self-locking feature, which allows the projection screen to maintain its height after it is raised without any additional operation. Furthermore, a variable speed gear set is provided to increase the transmission torque. The narrow and long layout facilitates the installation of the motor on the vehicle, reducing the space occupied. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of a motor for a car projection screen according to an embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the exploded structure of a motor for a car projection screen according to an embodiment of the present utility model;

[0021] Figure 3 It is a structural schematic diagram of a car projection screen motor in a coverless state according to an embodiment of the present utility model.

[0022] Description of labels:

[0023] 100, housing assembly; 110, bottom shell; 111, recessed portion; 120, cover plate; 130, power chamber;

[0024] 131, outlet hole; 140, speed change chamber; 141, first shaft sleeve; 142, second shaft sleeve;

[0025] 150, support seat; 151, support hole; 160, reinforcement rib; 200, motor; 210, rotating shaft;

[0026] 220, worm; 230, convex body; 300, transmission module; 310, worm wheel; 320, transmission wheel;

[0027] 330, speed change gear set; 331, transmission gear; 340, output wheel; 350, output shaft;

[0028] 360, bearing; 370, gasket; 400, cable; 410, block. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the following further describes the present invention's automotive projection screen motor in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present invention and are not intended to limit the present invention.

[0030] Please refer to Figure 1-Figure 3 , a car projection screen motor, comprising:

[0031] The housing assembly 100 includes a bottom shell 110 and a cover plate 120. A power chamber 130 and a transmission chamber 140 are provided within the housing assembly 100 and are connected along the length direction. A support seat 150 is provided at each end of the power chamber 130. A plurality of first shaft sleeves 141 are provided on the bottom shell 110 and the cover plate 120 in the transmission chamber 140 in a one-to-one correspondence.

[0032] The motor 200 is disposed in the power chamber 130 , with both ends of the motor 200 supported by the support base 150 , and the rotating shaft 210 of the motor 200 extends into the speed change chamber 140 ;

[0033] The worm 220 is located in the speed change chamber 140 and is sleeved on the rotating shaft 210;

[0034] The transmission module 300 includes a worm gear 310, a transmission wheel 320, a speed change gear set 330, an output wheel 340 and an output shaft 350, which are sequentially connected in transmission. The worm gear 310 is connected to the worm 220 in transmission. The speed change gear set 330 is composed of several transmission gears 331. The output shaft 350 is fixed to the middle of the output wheel 340. The transmission wheel 320 and the worm gear 310 form a double gear. The central axes of the worm gear 310 and the transmission wheel 320, and the central axis of the transmission gear 331 are all assembled through the first shaft sleeve 141. One end of the output shaft 350 extends out of the speed change cavity 140, and the other end is assembled through the second shaft sleeve 142 set on the cover plate 120 or the bottom shell 110.

[0035] The output shaft 350 of the motor 200 is equipped with a worm 220, which works in conjunction with a worm gear 310 to transmit power. The worm 220 and worm gear 310 have a self-locking feature, ensuring the projection screen maintains its height after it is raised without requiring any further operation. A speed change gear set 330 is also provided to increase transmission torque. The narrow and long layout facilitates motor installation on vehicles, minimizing space requirements.

[0036] Please refer to Figure 2 and Figure 3 , a bearing 360 is provided at each end of the output wheel 340. The bearing 360 is provided to improve the stability and smoothness of the output shaft 350.

[0037] Please refer to Figure 2 and Figure 3 , both ends of the double gear consisting of the transmission wheel 320 and the worm gear 310 and both ends of the transmission gear 331 are respectively provided with a gasket 370. The gasket 370 is provided to ensure the smooth operation of the transmission wheel 320.

[0038] Please refer to Figure 2 and Figure 3 The transmission gears 331 are all double gears. Through the multi-stage transmission of the double gears, the reduction ratio can be obtained more conveniently, and the length can be reduced, which is conducive to the miniaturization of the motor.

[0039] Please refer to Figure 2 and Figure 3 The support base 150 has a support hole 151. Both ends of the motor 200 are provided with protrusions 230 that match the support holes 151. The protrusions 230 surround the rotating shaft 210 and have a clearance hole for the rotating shaft 210 to extend. Generally, the protrusions 230 have a non-circular structure, preferably a rectangular shape, and the clearance holes are adapted to the shape of the protrusions 230.

[0040] Please refer to Figure 2 and Figure 3 , further comprising a wire outlet 131 communicating with the power chamber 130. The wire outlet 131 is formed by the bottom shell 110 and the cover plate 120. The cable 400 is electrically connected to the motor 200 through the wire outlet 131. The cable 400 is generally welded to the terminal of the motor 200 to supply power and control the motor 200.

[0041] Please refer to Figure 2 and Figure 3 The cable 400 is provided with a clamping block 410, which is engaged with the outlet hole 131. The clamping block 410 can improve the pulling strength of the cable 400 and avoid disconnection.

[0042] Please refer to Figure 2 and Figure 3The bottom shell 110 has a recessed groove at its open end, and the cover 120 has a convex portion that matches the recessed groove. The connection between the bottom shell 110 and the cover 120 is more stable.

[0043] Please refer to Figure 2 and Figure 3 , a plurality of reinforcing ribs 160 are provided on the bottom shell 110 and the cover plate 120 to improve the strength of the bottom shell 110 and the cover plate 120.

[0044] Please refer to Figure 1-Figure 3 The bottom shell 110 is provided with a recessed portion 111 at one end away from the power chamber 130, and the output shaft 350 extends from the recessed portion 111. The recessed portion 111 can further reduce space occupation and facilitate the installation of the motor.

[0045] Typically, the cover plate 120 and the bottom shell 110 are connected by screw connection. Simply put, a plurality of threaded barrels are provided in the bottom shell 110, and through holes corresponding to the threaded barrels are provided on the cover plate 120. Bolts are screwed to the threaded barrels through the through holes.

[0046] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0047] In addition, if the embodiments of the present invention include descriptions of "first," "second," etc., such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one of such features.

[0048] In summary, the present invention provides a motor for automotive projection screens. A worm is mounted on the motor's output shaft, which works in conjunction with a worm wheel for transmission. The worm and worm wheel exhibit a self-locking feature, maintaining the projection screen's height after it is raised without requiring any further operation. Furthermore, a variable speed gear set is provided to increase transmission torque. The narrow and long layout facilitates motor installation on vehicles, minimizing space requirements.

[0049] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of the technical content disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A car projection screen motor, characterized in that: include: The housing assembly includes a bottom shell and a cover plate. The housing assembly is provided with a power chamber and a speed change chamber connected along the length direction. A support seat is provided at each end of the power chamber. A plurality of first shaft sleeves are provided on the bottom shell and the cover plate in a one-to-one correspondence within the speed change chamber. a motor, disposed in the power cavity, with both ends of the motor supported by the support base, and a rotating shaft of the motor extending into the speed change cavity; A worm is located in the speed change cavity and sleeved on the rotating shaft; The transmission module includes a worm gear, a transmission wheel, a speed change gear set, an output wheel and an output shaft that are sequentially connected in transmission. The worm gear is connected to the worm, the speed change gear set is composed of a number of transmission gears, the output shaft is fixed to the middle of the output wheel, the transmission wheel and the worm gear form a double gear, the central axis of the worm gear and the transmission wheel, and the central axis of the transmission gear are all assembled through the first shaft sleeve, one end of the output shaft extends out of the speed change cavity, and the other end is assembled through the second shaft sleeve set on the cover plate or the bottom shell.

2. The automobile projection screen motor according to claim 1, characterized in that: A bearing is respectively provided at both ends of the output wheel.

3. The automobile projection screen motor according to claim 1, characterized in that: Both ends of the double gear formed by the transmission wheel and the worm gear and both ends of the transmission gear are respectively provided with a gasket.

4. The automobile projection screen motor according to claim 1, characterized in that: The transmission gears are all duplex gears.

5. The automobile projection screen motor according to claim 1, characterized in that: The support seat has a support hole, and both ends of the motor are provided with convex bodies adapted to the support holes. The convex bodies surround the rotating shaft and are provided with avoidance holes for the rotating shaft to extend out.

6. The automobile projection screen motor according to claim 1, characterized in that: It also includes a wire outlet hole connected to the power cavity, the wire outlet hole is formed by the bottom shell and the cover plate, and the cable is electrically connected to the motor through the wire outlet hole.

7. The automobile projection screen motor according to claim 6, characterized in that: A clamping block is provided on the cable, and the clamping block is clamped with the cable outlet hole.

8. The automobile projection screen motor according to claim 1, characterized in that: The open end of the bottom shell is provided with a sinking groove, and the cover plate is provided with a convex portion adapted to the sinking groove.

9. The automobile projection screen motor according to claim 1, characterized in that: A plurality of reinforcing ribs are provided on the bottom shell and the cover plate.

10. The automobile projection screen motor according to claim 1, characterized in that: The bottom shell is provided with a recessed portion at one end away from the power chamber, and the output shaft extends from the recessed portion.

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