Ceiling screen assembly with double transmission mechanisms

By installing dual transmission mechanisms on both sides of the ceiling-mounted screen and equipping it with Hall sensors and magnets, the problem of insufficient load on a large screen driven by a single motor is solved, enabling smooth opening and closing and precise control of the ceiling-mounted screen.

CN223590661UActive Publication Date: 2025-11-25WENZHOU CHANGJIANG AUTOMOBILE ELECTRONICS SYST
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Patent Information

Application Number
CN202520108208.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-16
Publication Date
2025-11-25
Estimated Expiration
2035-01-16

AI Technical Summary

Technical Problem

Existing automotive ceiling screens use a single motor drive mechanism, which cannot drive large-size screens, resulting in insufficient load-bearing capacity, screen tilting, and an inability to accurately control the motor's rotation angle and speed.

Method used

Dual drive mechanisms are installed on both sides of the ceiling screen to achieve smooth opening and closing through synchronous drive, and Hall sensors and magnets are equipped to monitor the motor's rotation position and speed in real time to ensure precise control.

Benefits of technology

It improves the load-bearing capacity of the ceiling-mounted screen, enabling smooth opening and closing, preventing tilting, and allowing precise control of the flip angle, making it suitable for large-size screens.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223590661U_ABST
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Abstract

The utility model relates to a ceiling screen assembly with double transmission mechanisms, which comprises a support, a main circuit board, a first transmission mechanism and a second transmission mechanism, and the first transmission mechanism and the second transmission mechanism are respectively arranged at two ends of a ceiling screen. Each of the first transmission mechanism and the second transmission mechanism comprises a motor, a rotating shaft, a branch circuit board, a Hall sensor and a magnet, the motor is electrically connected with the main circuit board, one end of the rotating shaft is fixed with the ceiling screen, the other end of the rotating shaft is connected with the motor and rotates under the driving of the motor, and the Hall sensor is fixedly arranged on the branch circuit board. The branch circuit board is electrically connected with the main circuit board, the magnet is arranged on the rotating shaft and rotates synchronously with the rotating shaft, and the magnet is located on one side of the branch circuit board and corresponds to the Hall sensor. By the adoption of the technical scheme, the ceiling screen assembly with the double transmission mechanisms is provided, the transmission mechanisms are installed on the two sides of the ceiling screen respectively, the ceiling screen is synchronously driven to rotate, and the smoother and more stable opening and closing effect is achieved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a ceiling screen technical field of car especially a kind of ceiling screen subassembly of double transmission mechanism. BACKGROUND

[0002] The ceiling screen on existing car is all driven to open and close using single motor transmission mechanism, then single motor cannot be used to drive alone for large size ceiling screen, load bearing is not enough, which can easily lead to screen skewing, and the rotation angle and speed of motor cannot be detected, so accurate control cannot be realized. SUMMARY

[0003] The utility model discloses a kind of ceiling screen subassembly of double transmission mechanism, transmission mechanism is respectively installed in the both sides of ceiling screen, synchronous drive ceiling screen rotation, realize more flat and stable open and close effect.

[0004] The utility model discloses a kind of ceiling screen subassembly of double transmission mechanism, including support, main circuit board, first transmission mechanism and second transmission mechanism, the first transmission mechanism and second transmission mechanism are located on support, and are respectively located in the both ends of ceiling screen, first transmission mechanism and second transmission mechanism structure are same, and all include motor, shaft, subcircuit board, hall sensor and magnet, the motor is electrically connected with main circuit board, shaft one end is fixed with ceiling screen, the other end is connected with motor, and it rotates under the drive of motor, the hall sensor is fixedly arranged on subcircuit board, subcircuit board is electrically connected with main circuit board, the magnet is located on shaft, and it rotates synchronously with shaft, magnet is located in the side of subcircuit board, and it is correspondingly arranged with hall sensor.

[0005] Using above-mentioned technical scheme, transmission mechanism is set in the both sides of ceiling screen, ceiling screen is overturned by two transmission mechanisms, improve bearing capacity, realize the stable opening and closing of ceiling screen, avoid ceiling screen skewing, and increase hall sensor and magnet, can monitor motor rotation position and speed in real time, can realize accurate control, ensure the overturning angle of ceiling screen.

[0006] The utility model discloses further setting: the both sides of support are equipped with mounting groove, the first transmission mechanism and second transmission mechanism are respectively arranged in corresponding mounting groove, the first transmission mechanism and second transmission mechanism all include installation box, the motor and shaft are located in installation box, subcircuit board is fixedly arranged outside installation box, opening is set on installation box for magnet to expose for corresponding magnet position.

[0007] Using above-mentioned further setting, installation box can cover motor and shaft, so that it is not exposed, more beautiful, and more safe, and structure is also more stable.

[0008] The further setting of the utility model discloses: the installation box includes the box body and the apron of split setting, the motor and the pivot are located on the box body, the apron is located between the box body and the separate circuit board, is equipped with a plurality of connecting posts on the apron, the separate circuit board is fixed on the connecting post through screw, and the opening is located on the apron.

[0009] The further setting makes the Hall sensor structure stable, and ensures that the Hall sensor can accurately and stably monitor the magnetic field change.

[0010] The further setting of the utility model discloses: the bracket is equipped with detachable fixed box, the fixed box one side open setting forms the installation groove, the installation box is connected with the fixed box through fastener, and the fixed box other side is equipped with a plurality of slot for connecting wire to pass.

[0011] The further setting is convenient to install, and the motor and the separate circuit board are connected with the main circuit board.

[0012] The further setting of the utility model discloses: the first transmission mechanism and the second transmission mechanism still include the transmission assembly between the motor and the pivot, the transmission assembly includes first worm, first worm wheel, second worm, second worm wheel, first gear and second gear, the first worm is located on the output shaft of the motor, the first worm wheel is sleeved on the second worm, and the first worm wheel is engaged with the first worm, the second worm is engaged with the second worm wheel, the second worm wheel is sleeved on the first gear, the second gear is located on the pivot and is engaged with the first gear, so as to drive the pivot to rotate when the motor rotates.

[0013] The further setting has simple transmission structure, and the worm wheel and the worm have self-locking function, so that the pivot structure is stable.

[0014] The further setting of the utility model discloses: the pivot is equipped with the connecting shaft synchronous rotation with it, and the magnet is located at the end of the connecting shaft and is fixedly connected with the connecting shaft.

[0015] The further setting is that the connecting shaft rotates and drives the magnet to rotate, which is simple in structure, convenient to install and stable in structure. DRAWINGS

[0016] Figure 1 It is the whole structure schematic diagram of the embodiment of the utility model;

[0017] Figure 2 It is the schematic diagram of the fixed box of the embodiment of the utility model;

[0018] Figure 3 It is the schematic diagram of the first transmission mechanism of the embodiment of the utility model;

[0019] Figure 4 Figure 1 is a schematic diagram of the main circuit board of the embodiment of the utility model;

[0020] Figure 5 Figure 2 is a schematic diagram of the position of the main circuit board of the embodiment of the utility model;

[0021] Figure 6 Figure 3 is a schematic diagram of the transmission assembly of the embodiment of the utility model;

[0022] Figure 7 Figure 4 is a schematic diagram of the mounting box of the embodiment of the utility model;

[0023] Figure 8 Figure 5 is a schematic diagram of the box body of the embodiment of the utility model.

[0024] In the figure, 1, support; 11, fixed box; 111, notch; 2, main circuit board; 3, first transmission mechanism; 31, motor; 32, rotating shaft; 321, connecting shaft; 33, sub-circuit board; 34, hall sensor; 35, magnet; 36, mounting box; 361, opening; 362, box body; 363, cover plate; 364, connecting column; 365, first containing cavity; 366, second containing cavity; 367, third containing cavity; 37, transmission assembly; 371, first worm; 372, first worm wheel; 373, second worm; 374, second worm wheel; 375, first gear; 376, second gear; 4, second transmission mechanism; 5, ceiling suction screen. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] It should be noted that, in the description of the utility model, all directional indications (such as up, down, front, back, etc.) are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0027] In addition, in the utility model, the description of "first", "second", etc. is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. In the description of the utility model, the meaning of "several" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0028] In addition, the technical solutions of various embodiments of the utility model can be combined with each other, but must be based on the realization of the technical personnel in the art, when the combination of technical solutions appears mutual contradiction or cannot be realized, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the utility model.

[0029] As Figures 1-8 The utility model discloses a take double drive mechanism's ceiling screen subassembly, including support 1, main circuit board 2, first drive mechanism 3 and second drive mechanism 4, main circuit board 2 and ceiling screen 5 are located support 1 both sides respectively, and main circuit board 2 is installed on support 1 through screw, first drive mechanism 3 and second drive mechanism 4 are located on support 1, and are located the both ends of ceiling screen 5 respectively, first drive mechanism 3 and second drive mechanism 4 same structure, all include motor 31, pivot 32, subcircuit board 33, hall sensor 34 and magnet 35, motor 31 with main circuit board 2 electricity is connected, pivot 32 one end with ceiling screen fixed, the other end is connected with motor 31, and rotates under the drive of motor 31, hall sensor 34 is fixed on subcircuit board 33, and subcircuit board 33 with main circuit board 2 electricity is connected, magnet 35 is located pivot 32, and rotates with pivot 32 synchronously, magnet 35 is located subcircuit board 33 one side, with hall sensor 34 correspondingly sets up, sets up drive mechanism in the both sides of ceiling screen, drives ceiling screen to overturn through two drive mechanisms, improves the bearing capacity, realizes the stable opening and closing of ceiling screen, avoids the ceiling screen skew, can make the large -size ceiling screen open and close flat, load bearing is good, can bear 21.5 inches above ceiling screen, the collaborative work between double motor 31, can pass through algorithm control, ensures that two motor 31 can keep synchronous and coordination when driving ceiling screen to open and close, and the specific algorithm is not the technical problem that this application wants to solve, therefore does not explain again, and increase hall sensor 34 and magnet 35, can real -time monitoring motor 31 rotation position and rotational speed, can realize accurate control, ensures the overturning angle of ceiling screen. Pivot 32 is equipped with the connecting shaft 321 synchronous rotation with it, magnet 35 is located the end of connecting shaft 321 and is fixedly connected with connecting shaft 321, specifically, the end of connecting shaft is connected with the containing box of one side open setting, is close to the open side of hall sensor, and the magnet is located in the containing box, when connecting shaft 321 rotates, drives magnet 35 to rotate, simple structure, convenient installation, and stable structure, so that hall sensor 34 can better measure the rotation position and speed of motor 31.

[0030] The bracket 1 is provided with mounting slots on both sides, the first transmission mechanism 3 and the second transmission mechanism 4 are arranged in the corresponding mounting slots, the first transmission mechanism 3 and the second transmission mechanism 4 each comprise a mounting box 36, the motor 31 and the rotating shaft 32 are arranged in the mounting box 36, the sub-circuit board 33 is fixedly arranged outside the mounting box 36, the mounting box 36 is provided with an opening 361 corresponding to the position of the magnet 35, the motor 31 and the rotating shaft 32 are covered by the mounting box 36, so that they are not exposed, more beautiful, more secure, and the structure is more stable. The bracket 1 is provided with a detachable fixing box 11, one side of the fixing box 11 is provided with an opening to form the mounting slot, the mounting box 36 is connected with the fixing box 11 through fasteners, and the other side of the fixing box 11 is provided with a plurality of slot openings 111 for connecting wires to pass through, so that the motor 31 and the sub-circuit board 33 are conveniently connected with the main circuit board 2.

[0031] The mounting box 36 comprises a box body 362 and a cover plate 363 arranged in two parts, the motor 31 and the rotating shaft 32 are arranged on the box body 362, the cover plate 363 is arranged between the box body 362 and the sub-circuit board 33, the cover plate 363 is provided with a plurality of connecting columns 364, the sub-circuit board 33 is fixed on the connecting columns 364 through screws, and the opening 361 is arranged on the cover plate 363, so that the structure of the Hall sensor 34 is stable, and the Hall sensor 34 can accurately and stably monitor the change of the magnetic field. The first transmission mechanism 3 and the second transmission mechanism 4 further comprise a transmission assembly 37 arranged between the motor 31 and the rotating shaft 32, the transmission assembly 37 comprises a first worm 371, a first worm wheel 372, a second worm 373, a second worm wheel 374, a first gear 375 and a second gear 376, the first worm 371 is arranged on the output shaft of the motor 31, the first worm wheel 372 is sleeved on the second worm 373, the first worm wheel 372 is engaged with the first worm 371, the second worm 373 is engaged with the second worm wheel 374, the second worm wheel 374 is sleeved on the first gear 375, the second gear 376 is arranged on the rotating shaft 32 and engaged with the first gear 375, so that the rotating shaft 32 is driven to rotate when the motor 31 rotates, the first gear 375 is installed on the box body 362 and the cover plate 363 through a connecting shaft 321, the transmission structure is simple, the worm and the worm wheel have a self-locking function, the structure of the rotating shaft 32 is stable, the box body 362 is provided with a first accommodating cavity 365, a second accommodating cavity 366 and a third accommodating cavity 367, the first accommodating cavity 365 and the second accommodating cavity 366 are arranged in parallel with each other, the motor 31 is arranged in the first accommodating cavity 365, the rotating shaft 32 is arranged in the second accommodating cavity 366, the third accommodating cavity 367 is arranged at the end of the first accommodating cavity 365 and the second accommodating cavity 366, and the transmission assembly 37 is arranged in the third accommodating cavity 367.

Claims

1. A ceiling screen assembly with a dual transmission mechanism, characterized in that, The utility model provides an improved structure of the first transmission mechanism and the second transmission mechanism, and the first transmission mechanism and the second transmission mechanism are provided with the motor, the rotating shaft, the branch circuit board, the hall sensor and the magnet, the motor is electrically connected with the main circuit board, one end of the rotating shaft is fixed with the ceiling screen, the other end is connected with the motor and rotates under the drive of the motor, the hall sensor is fixed on the branch circuit board, the branch circuit board is electrically connected with the main circuit board, the magnet is provided on the rotating shaft and rotates synchronously with the rotating shaft, and the magnet is located on one side of the branch circuit board and is arranged correspondingly with the hall sensor.

2. The dual transmission mechanism ceiling screen assembly of claim 1, wherein, The utility model provides an improved structure of the first transmission mechanism and the second transmission mechanism, and the first transmission mechanism and the second transmission mechanism are provided with the motor, the rotating shaft, the branch circuit board, the hall sensor and the magnet, the motor is electrically connected with the main circuit board, one end of the rotating shaft is fixed with the ceiling screen, the other end is connected with the motor and rotates under the drive of the motor, the hall sensor is fixed on the branch circuit board, the branch circuit board is electrically connected with the main circuit board, the magnet is provided on the rotating shaft and rotates synchronously with the rotating shaft, and the magnet is located on one side of the branch circuit board and is arranged correspondingly with the hall sensor.

3. The dual transmission mechanism ceiling screen assembly of claim 2, wherein, The utility model provides an improved structure of the first transmission mechanism and the second transmission mechanism, and the first transmission mechanism and the second transmission mechanism are provided with the motor, the rotating shaft, the branch circuit board, the hall sensor and the magnet, the motor is electrically connected with the main circuit board, one end of the rotating shaft is fixed with the ceiling screen, the other end is connected with the motor and rotates under the drive of the motor, the hall sensor is fixed on the branch circuit board, the branch circuit board is electrically connected with the main circuit board, the magnet is provided on the rotating shaft and rotates synchronously with the rotating shaft, and the magnet is located on one side of the branch circuit board and is arranged correspondingly with the hall sensor.

4. The dual transmission mechanism ceiling screen assembly according to claim 2 or 3, wherein, The utility model provides an improved structure of the first transmission mechanism and the second transmission mechanism, and the first transmission mechanism and the second transmission mechanism are provided with the motor, the rotating shaft, the branch circuit board, the hall sensor and the magnet, the motor is electrically connected with the main circuit board, one end of the rotating shaft is fixed with the ceiling screen, the other end is connected with the motor and rotates under the drive of the motor, the hall sensor is fixed on the branch circuit board, the branch circuit board is electrically connected with the main circuit board, the magnet is provided on the rotating shaft and rotates synchronously with the rotating shaft, and the magnet is located on one side of the branch circuit board and is arranged correspondingly with the hall sensor.

5. The dual transmission mechanism ceiling screen assembly according to claim 1 or 2 or 3, wherein, The first transmission mechanism (3) and the second transmission mechanism (4) further comprise a transmission assembly (37) arranged between the motor (31) and the rotating shaft (32), the transmission assembly (37) comprising a first worm (371), a first worm wheel (372), a second worm (373), a second worm wheel (374), a first gear (375) and a second gear (376), the first worm (371) being arranged on the output shaft of the motor (31), the first worm wheel (372) being sleeved on the second worm (373), and the first worm wheel (372) being engaged with the first worm (371), the second worm (373) being engaged with the second worm wheel (374), the second worm wheel (374) being sleeved on the first gear (375), the second gear (376) being arranged on the rotating shaft (32) and engaged with the first gear (375), so that the rotating shaft (32) is driven to rotate when the motor (31) rotates.

6. The dual transmission mechanism ceiling screen assembly according to claim 1 or 2 or 3, wherein, The rotating shaft (32) is provided with a connecting shaft (321) rotating synchronously therewith, and the magnet (35) is located at the end of the connecting shaft (321) and fixedly connected with the connecting shaft (321).