Low-noise ceiling screen spring bolt motor actuator
By using a driving structure with a screw hole in the center of the worm gear actuator to act on the screw, the problem of high noise in the traditional actuator is solved, and the noise reduction and user experience are improved.
Patent Information
- Application Number
- CN202422177649.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-05
AI Technical Summary
The traditional ceiling screen lock tongue motor actuator generates a lot of noise during operation, affecting the user experience.
The driving structure of a screw hole is used in the center of the worm gear to act on the screw, and the slider and lock tongue are moved through the screw to realize the function of the actuator and reduce noise during the transmission process.
It effectively reduces the noise of the lock tongue motor actuator during operation and improves the user experience.
Smart Images
Figure CN223048597U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of actuators, in particular to a low-noise ceiling screen lock tongue motor actuator. Background Art
[0002] An actuator is a device that can automatically extend and fix a ceiling-mounted TV in a vehicle. When assembled and used, the lock tongue can extend when the ceiling-mounted TV is in the closed state to lock both sides of the ceiling-mounted TV, and automatically retract and unlock when the ceiling-mounted TV needs to be opened, making the vehicle more technological and intelligent. At the same time, it effectively ensures that the ceiling-mounted TV can be effectively fixed in the closed state and will not flip and fall due to vehicle movement, bumps or impacts.
[0003] The traditional ceiling screen lock tongue motor body uses a high-speed and small-torque motor, and at the same time adopts a transmission method of worm and worm gear, gear and rack. The transmission method of worm and worm gear plus gear and rack, especially the gear and rack transmission structure, is prone to generate relatively large noise during operation. Summary of the Utility Model
[0004] The purpose of the utility model is to overcome the above technical deficiencies, and propose a low-noise ceiling screen lock tongue motor actuator to solve the technical problem that the lock tongue motor actuator in the prior art generates relatively large noise during operation.
[0005] To achieve the above technical purpose, the utility model adopts the following technical solutions:
[0006] The utility model provides a low-noise ceiling screen lock tongue motor actuator, including:
[0007] A housing, in which a guide groove is formed;
[0008] A driving mechanism, which includes a worm wheel, a rotational driving member and a lead screw. The worm wheel is rotatably arranged in the housing, a threaded hole is formed in the center of the worm wheel, the rotational driving member is connected to the worm wheel and is used to drive the worm wheel to rotate, and the lead screw is threadedly and rotatably connected in the threaded hole; and,
[0009] An actuating mechanism, which includes a slider and a lock tongue. The slider is slidably arranged in the guide groove, one end of the slider is fixed to the lead screw, and the other end of the slider is fixedly connected to one end of the lock tongue.
[0010] In some embodiments, the housing includes a bottom case and a cover plate, and the cover plate is detachably connected to the bottom case.
[0011] In some embodiments, a track is fixed on the bottom case, an embedding block is formed on the slider, and the embedding block is slidably arranged on the track.
[0012] In some embodiments, the lead screw is fixed to the slider via a plurality of locking screws.
[0013] In some embodiments, two limit baffles are fixed on the bottom shell, and the two limit baffles are respectively abutted against both ends of the worm gear.
[0014] In some embodiments, a PCB board is further fixed on the housing, a Hall element is arranged on the PCB board, and a magnet cooperating with the Hall element is fixed on the slider.
[0015] In some embodiments, the rotation driving member includes a worm, a driving motor, a first bevel gear and a second bevel gear. The worm is rotatably arranged on the bottom shell and meshes with the worm gear. The driving motor is installed on the bottom shell, the output shaft of the driving motor is fixedly connected with the first bevel gear, the second bevel gear is coaxially and fixedly connected with the worm, and the second bevel gear meshes with the first bevel gear.
[0016] In some embodiments, a fixed shaft is fixed on the bottom shell, a through hole is formed in the center of the worm, and the worm is sleeved on the fixed shaft via the through hole, and the second bevel gear is sleeved on the fixed shaft.
[0017] In some embodiments, the actuator further includes a first buffer pad, which is fixed on the bottom shell and is used for abutting against one end of the slider.
[0018] In some embodiments, the actuator further includes a second buffer pad, which is fixed on the bottom shell and is used for abutting against the other end of the slider.
[0019] Compared with the prior art, the beneficial effect of the low-noise ceiling screen tongue lock motor actuator provided by the present utility model is as follows: during use, the worm gear is driven to rotate by the rotation driving member. When the worm gear rotates, it acts on the lead screw through the screw hole formed in its center. Since the worm gear is rotatably connected to the housing and cannot move, when the worm gear rotates, the lead screw will move along the length direction, and the lead screw drives the slider and the tongue lock to move, realizing the function of the actuator. The present utility model realizes the driving of the tongue lock by the screw hole formed in the center of the worm gear, and the noise generated during the transmission process is small, which can improve the use experience. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 is a schematic perspective view of a low-noise ceiling screen tongue lock motor actuator provided by an embodiment of the present utility model;
[0021] Figure 2 is Figure 1 the schematic perspective view of the low-noise ceiling screen tongue lock motor actuator in
[0022] Figure 3 is Figure 2 The three-dimensional structural schematic diagram of the low-noise ceiling screen lock tongue motor actuator in
[0023] Figure 4 is Figure 3 The three-dimensional structural schematic diagram of the low-noise ceiling screen lock tongue motor actuator in
[0024] Explanation of reference numerals: 1 - housing, 11 - bottom case, 111 - track, 112 - limit baffle, 12 - cover plate, 13 - fixed shaft, 2 - drive mechanism, 21 - worm gear, 22 - rotation drive member, 221 - worm, 222 - drive motor, 223 - first bevel gear, 224 - second bevel gear, 23 - lead screw, 24 - PCB board, 241 - Hall element, 3 - actuator, 31 - slider, 311 - embedding block, 312 - locking screw, 313 - magnet, 32 - lock tongue, 33 - first buffer pad, 34 - second buffer pad. Detailed implementation manners
[0025] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.
[0026] In order to solve the technical problem of large noise generated during the operation of the lock tongue motor actuator, the present utility model provides a low-noise ceiling screen lock tongue motor actuator, which can reduce the noise generated during the operation of the lock tongue motor actuator.
[0027] It should be noted that the low-noise ceiling screen lock tongue motor actuator described in the present utility model is used for but not limited to ceiling screen lock tongue motor actuators, etc. For the convenience of description, in the present utility model, only the case where the low-noise ceiling screen lock tongue motor actuator is applied to the ceiling screen lock tongue motor actuator device is taken as an example for description, and the principle of applying the low-noise ceiling screen lock tongue motor actuator to other types of devices is substantially the same as that of applying it to the ceiling screen lock tongue motor actuator device, and will not be elaborated here one by one.
[0028] Please refer to Figures 1 - 4 , Figure 1 which is the three-dimensional structural schematic diagram of the low-noise ceiling screen lock tongue motor actuator in an embodiment of the present utility model. The low-noise ceiling screen lock tongue motor actuator includes a housing 1, a drive mechanism 2 and an actuator 3.
[0029] A guide groove is formed in the housing 1;
[0030] The driving mechanism 2 includes a worm gear 21, a rotational driving member 22, and a lead screw 23. The worm gear 21 is rotatably disposed within the housing 1. A threaded hole is formed at the center of the worm gear 21. The rotational driving member 22 is connected to the worm gear 21 and is used to drive the worm gear 21 to rotate. The lead screw 23 is threadedly and rotatably connected within the threaded hole.
[0031] The actuating mechanism 3 includes a slider 31 and a locking tongue 32. The slider 31 is slidably disposed within the guide groove. One end of the slider 31 is fixed to the lead screw 23, and the other end of the slider 31 is fixedly connected to one end of the locking tongue 32.
[0032] During use, the rotational driving member 22 drives the worm gear 21 to rotate. When the worm gear 21 rotates, it acts on the lead screw 23 through the threaded hole formed at its center. Since the worm gear 21 is rotatably connected to the housing 1 and cannot move, when the worm gear 21 rotates, the lead screw 23 will move along its length direction. The lead screw 23 drives the slider 31 and the locking tongue 32 to move, thereby realizing the functions of the actuator. In the present utility model, the lead screw 23 is actuated through the threaded hole formed at the center of the worm gear 21, so as to drive the locking tongue 32. The noise generated during the transmission process is relatively small, which can improve the user experience.
[0033] In one embodiment, please refer to Figure 1 and Figure 2 , the housing 1 includes a bottom shell 11 and a cover plate 12. The cover plate 12 is detachably connected to the bottom shell 11.
[0034] In one embodiment, please refer to Figures 1 - 3 , a track 111 is fixed on the bottom shell 11. An embedding block 311 is formed on the slider 31. The embedding block 311 is slidably disposed within the track 111, which can improve the stability of the slider 31 during the sliding process.
[0035] In one embodiment, please refer to Figures 1 - 3 , the lead screw 23 is fixed to the slider 31 via a plurality of locking screws 312. If the process permits, the lead screw 23 and the slider 31 can also be made into an integral body by powder metallurgy or machining to increase the strength of the whole part.
[0036] In one embodiment, please refer to Figures 1 - 3 , two limiting baffles 112 are fixed on the bottom shell 11. The two limiting baffles 112 respectively abut against both ends of the worm gear 21.
[0037] In one embodiment, please refer to Figures 2 - 4, a PCB board 24 is also fixed on the housing 1. A Hall element 241 is arranged on the PCB board 24, and a magnet 313 which is matched with the Hall element 241 is fixed on the slider 31. When the magnet approaches the Hall element, the Hall element will detect the change of the magnetic field and generate a corresponding potential difference. If the magnetic field strength reaches a preset threshold, the internal circuit of the Hall switch will be turned on; otherwise, it will be turned off. This non-contact control method makes the Hall switch have the characteristics of high sensitivity, long service life, low power consumption and strong reliability. The Hall element on the PCB can sense whether the locking tongue moves in place during the forward and backward movement, and transmit the signal to the controller in time to cut off the power supply of the driving motor.
[0038] In one embodiment, please refer to Figures 2 - 4 , the rotation driving member 22 includes a worm 221, a driving motor 222, a first bevel gear 223 and a second bevel gear 224. The worm 221 is rotatably arranged on the bottom case 11 and meshes with the worm gear 21. The driving motor 222 is installed on the bottom case 11. The output shaft of the driving motor 222 is fixedly connected with the first bevel gear 223. The second bevel gear 224 is coaxially and fixedly connected with the worm 221. The second bevel gear 224 meshes with the first bevel gear 223. When in use, the driving motor 222 drives the first bevel gear 223 to rotate. The first bevel gear 223 drives the second bevel gear 224 to rotate. The second bevel gear 224 drives the worm 221 to rotate. When the worm gear 21 rotates, it acts on the lead screw 23 through the screw hole opened in its center. Since the worm gear 21 is restricted by the limiting baffles 112 on both sides and cannot move, when the worm gear 21 rotates, the lead screw 23 will move along the length direction. The lead screw 23 drives the slider 31 and the locking tongue 32 to move, realizing the function of the actuator.
[0039] In one embodiment, please refer to Figures 2 - 4 , a fixed shaft 13 is fixed on the bottom case 11. A through hole is opened in the center of the worm 221. The worm 221 is sleeved on the fixed shaft 13 through the through hole. The second bevel gear 224 is sleeved on the fixed shaft 13.
[0040] In one embodiment, please refer to Figures 2 - 4 , the actuator 3 further includes a first buffer pad 33 which is fixed on the bottom case 11 and is used for abutting against one end of the slider 31. The actuator 3 further includes a second buffer pad 34 which is fixed on the bottom case 11 and is used for abutting against the other end of the slider 31. The first buffer pad 33 and the second buffer pad 34 can prevent the impact on the whole housing caused by inertia during the forward and backward movement of the locking tongue.
[0041] To better understand the present invention, the following is combined withFigures 1 to 4 The technical solution of the present utility model will be described in detail: During use, the driving motor 222 drives the first bevel gear 223 to rotate. The first bevel gear 223 drives the second bevel gear 224 to rotate. The second bevel gear 224 drives the worm 221 to rotate. When the worm gear 21 rotates, it acts on the lead screw 23 through the threaded hole opened in its center. Since the worm gear 21 is acted upon by the limiting baffle plates 112 on both sides and cannot move, when the worm gear 21 rotates, the lead screw 23 will move along its length direction. The lead screw 23 drives the slider 31 and the locking tongue 32 to move, realizing the function of the actuator. The present utility model realizes the drive of the locking tongue 32 by the threaded hole opened in the center of the worm gear 21, and the noise generated during its transmission process is relatively small, which can improve the use experience.
[0042] The specific implementation manners of the present utility model described above do not constitute a limitation to the protection scope of the present utility model. Any other corresponding changes and deformations made according to the technical concept of the present utility model shall be included in the protection scope of the claims of the present utility model.
Claims
1. A low-noise ceiling screen lock tongue motor actuator, characterized in that: include: A housing, wherein a guide groove is provided in the housing; A driving mechanism, the driving mechanism comprising a worm wheel, a rotating driving member and a screw rod, the worm wheel is rotatably arranged in the housing, a screw hole is opened at the center of the worm wheel, the rotating driving member is connected to the worm wheel and is used to drive the worm wheel to rotate, and the screw rod is threadedly rotatably connected in the screw hole; and, The actuator comprises a slider and a locking tongue. The slider is slidably arranged in the guide groove. One end of the slider is fixed to the screw rod, and the other end of the slider is fixedly connected to one end of the locking tongue.
2. The low-noise ceiling screen lock tongue motor actuator according to claim 1 is characterized in that: The shell includes a bottom shell and a cover plate, and the cover plate is detachably connected to the bottom shell.
3. The low-noise ceiling screen lock tongue motor actuator according to claim 2 is characterized in that: A track is fixed on the bottom shell, an embedded block is formed on the sliding block, and the embedded block is slidably arranged on the track.
4. The low-noise ceiling screen lock tongue motor actuator according to claim 2 is characterized in that: The screw rod is fixed to the slider via a plurality of locking screws.
5. The low-noise ceiling screen lock tongue motor actuator according to claim 2 is characterized in that: Two limit baffles are fixed on the bottom shell, and the two limit baffles are respectively abutted against two ends of the worm gear.
6. The low-noise ceiling screen lock tongue motor actuator according to claim 2 is characterized in that: A PCB board is also fixed on the shell, a Hall element is arranged on the PCB board, and a magnet matching with the Hall element is fixed on the slider.
7. The low-noise ceiling screen lock tongue motor actuator according to claim 2 is characterized in that: The rotating driving member includes a worm, a driving motor, a first bevel gear and a second bevel gear. The worm is rotatably arranged on the bottom shell and meshes with the worm gear. The driving motor is installed on the bottom shell. The output shaft of the driving motor is fixedly connected to the first bevel gear. The second bevel gear is coaxially fixedly connected to the worm, and the second bevel gear meshes with the first bevel gear.
8. The low-noise ceiling screen lock tongue motor actuator according to claim 7 is characterized in that: A fixed shaft is fixed on the bottom shell, a through hole is opened at the center of the worm, the worm is sleeved on the fixed shaft through the through hole, and the second bevel gear is sleeved on the fixed shaft.
9. The low-noise ceiling screen lock tongue motor actuator according to claim 2 is characterized in that: The actuator also includes a first buffer pad, which is fixed to the bottom shell and is used to abut against one end of the slider.
10. The low-noise ceiling screen lock tongue motor actuator according to claim 9 is characterized in that: The actuator also includes a second buffer pad, which is fixed to the bottom shell and is used to abut against the other end of the slider.