Angle control structure of vehicle-mounted ceiling screen

Abstract

The invention relates to an angle control structure of a vehicle-mounted ceiling screen, which is characterized by comprising a shell and a support connected with the ceiling screen, a PCB (printed circuit board) and a rotor are arranged in the shell, a potentiometer is fixedly arranged on the PCB, the support is connected with a contact piece in the potentiometer through the rotor, the support is provided with a mounting channel with two open ends, and the mounting channel is communicated with the shell. The rotor comprises a connecting sleeve and a connecting rod which are integrally formed, the connecting sleeve is located in the installation channel and connected with the support, the connecting rod is located outside the installation channel, one end of the connecting rod is located outside the opening and staggered with the center shaft of the installation channel, and the other end of the connecting rod is connected with the contact piece and coaxially arranged with the center shaft of the installation channel. By the adoption of the technical scheme, the angle control structure of the vehicle-mounted ceiling screen is simple in structure, different resistances are output through rotation of the contact piece in the potentiometer, and overturning of the ceiling screen at different angles is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle-mounted ceiling screens, and in particular to an angle control structure of a vehicle-mounted ceiling screen. Background Art

[0002] The car ceiling screen is the latest product that enables information interaction between people and cars in the car. The ceiling screen is connected to the host controller in the car through a wiring harness. The main function is to transmit the level state of the screen off to the car's host module when the ceiling screen is closed. Then, after receiving the hard-line signal of closing the screen, the host turns off the backlight and display of the ceiling screen.

[0003] Then most of the existing ceiling screens are not equipped with angle sensors, resulting in the inability to accurately control the opening angle of the ceiling screen. Some of the sensors are also equipped with Hall effect sensors. For example, there is a Chinese utility model patent with an authorization announcement number of CN220391161U, which discloses a closing and opening control system for a car ceiling screen, including an in-vehicle host controller and a ceiling screen assembly. The ceiling screen assembly includes a main board and a display screen that can be flipped open and closed relative to the main board. A magnet is provided on the display screen, and a Hall sensor that can receive a magnetic field strength value is provided at a corresponding position of the main board. The main board also has an MCU module that can calculate and process the magnetic field strength value. The induction distance between the magnet and the Hall sensor changes with the flipping of the display screen, so that the magnetic field strength value received by the Hall sensor can be variable.

[0004] The above-mentioned method of induction by the cooperation of the Hall sensor and the magnet is used to change the angle of the ceiling screen to realize the rotation of the ceiling screen. However, the use of the Hall method causes the ceiling screen to have not only a complex overall structure, but also a relatively complex circuit design, while also increasing the cost. Summary of the invention

[0005] Purpose of the invention: In order to overcome the defects of the prior art, the present invention provides an angle control structure for a vehicle-mounted ceiling screen, which has a simple structure and can output different resistances by rotating the internal contact piece of the potentiometer to achieve flipping of the ceiling screen at different angles.

[0006] The technical solution of the present invention is as follows: an angle control structure of a vehicle-mounted ceiling screen, comprising a shell and a bracket connected to the ceiling screen, a PCB board and a rotor being arranged in the shell, a potentiometer being fixedly arranged on the PCB board, the bracket being connected to a contact piece in the potentiometer via the rotor, a mounting channel with openings at both ends being arranged on the bracket, the rotor comprising an integrally formed connecting sleeve and a connecting rod, the connecting sleeve being located in the mounting channel and connected to the bracket, the connecting rod being located outside the mounting channel, one end of the connecting rod being located outside the opening and being offset with the central axis of the mounting channel, the other end of the connecting rod being connected to the contact piece and being coaxially arranged with the central axis of the mounting channel.

[0007] By adopting the above technical solution, the bracket rotates driven by the ceiling screen, and the rotor is connected to the bracket, thereby driving the contact on the potentiometer to rotate. The contact rotates and contacts different positions to output different resistances. The main control unit on the car will process them into corresponding different angles, thereby controlling the flipping angle of the ceiling screen. The installation channel is not only used for the installation of the rotor, but also for the wiring harness to pass through. The end of the rotor's connecting rod connected to the bracket is located outside the installation channel, which is convenient for the wiring harness to pass through without affecting the wiring harness.

[0008] A further configuration of the present invention is that the connecting rod comprises a first rod body and a second rod body, the first rod body and the connecting sleeve are integrally formed, the second rod body is connected to the contact piece, and the angle between the first rod body and the second rod body is an obtuse angle.

[0009] The above further configuration does not affect the connection between the connecting rod and the contact piece, and provides a storage space for the wiring harness, and the structural layout is reasonable.

[0010] The present invention is further configured as follows: a connecting block is provided on the connecting rod, a connecting groove is provided on the contact piece, and the connecting block is inserted into the connecting groove.

[0011] By adopting the above further arrangement, the rotor can better drive the contact piece to rotate synchronously with it when rotating, and the matching structure of the connecting block and the connecting groove is tight, and it is more convenient without using other parts for connection.

[0012] The present invention is further configured as follows: the connecting sleeve is configured in an inverted "U" shape, and the connecting sleeve includes a cylinder body and a connecting plate, the cylinder body is located in the installation channel, the connecting plate is located outside the installation channel and connected to the bracket, and the connecting rod and the connecting plate are integrally configured.

[0013] With the above further configuration, the connecting sleeve can position the wiring harness in the installation channel to stabilize its structure.

[0014] The present invention is further configured as follows: a positioning convex strip is provided on the inner side wall of the installation channel, a groove is provided on the outer side wall of the cylinder, and the positioning convex strip is located in the groove when the cylinder is located in the installation channel.

[0015] The bracket is provided with a connecting hole and a positioning block, the connecting hole is opened on the positioning convex strip, and the connecting plate is correspondingly provided with a through hole and a positioning groove. When the cylinder is located in the installation channel, the positioning block is located in the connecting groove, the through hole and the connecting hole are arranged opposite to each other, and a connecting piece is passed through the connecting hole to realize the connection between the connecting sleeve and the bracket.

[0016] By further adopting the above-mentioned setting, the setting of the positioning convex strip can be connected with the connecting sleeve to better drive the rotor to rotate synchronously. At the same time, the positioning convex strip can be installed and positioned to facilitate the installation of the rotor. The wall thickness can be increased to facilitate the connection plate to be fixed to the bracket by screws. The setting of the positioning groove and the positioning block is convenient for identifying the orientation during installation and can be installed quickly.

[0017] The present invention is further provided that: a plurality of reinforcing ribs are provided on the outer side wall of the cylinder along the axial direction thereof.

[0018] By adopting the above-mentioned further arrangement, the connecting sleeve has high strength and a firm structure.

[0019] The present invention is further provided that: the bracket includes an integrally formed mounting plate and a mounting sleeve, the mounting sleeve is hollow to form the mounting channel, and the mounting plate is provided with a harness groove communicating with the mounting channel.

[0020] With the above arrangement further adopted, the mounting plate is connected to the ceiling screen, and the mounting sleeve is connected to the rotor, which is useful for the installation of the wiring harness, and the wiring harness groove plays a guiding and positioning role.

[0021] The present invention is further configured as follows: the shell includes a split shell and a back cover, the shell is provided with a first accommodating chamber and a second accommodating chamber, the end of the mounting sleeve extends into the first accommodating chamber, the rotor is rotatably arranged in the first accommodating chamber, the angle PCB board and the potentiometer are arranged in the second accommodating chamber, and the back cover is located at the rear side of the second accommodating chamber and is connected to the shell.

[0022] The above further configuration is adopted, and the split configuration is adopted to facilitate the installation of the rotor and the PCB board. The rear cover is connected to the housing by screws to install the PCB board in the second accommodating cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of a specific embodiment of the present invention; Figure 2 is a schematic diagram of a rotor according to a specific embodiment of the present invention; Figure 3 A top view of a rotor according to a specific embodiment of the present invention; Figure 4 It is a schematic diagram of a PCB board and a potentiometer according to a specific embodiment of the present invention; Figure 5 is a schematic diagram of a support according to a specific embodiment of the present invention; Figure 6 is a schematic diagram of a housing according to a specific embodiment of the present invention; Figure 7 It is a schematic diagram of a housing and a bracket according to a specific embodiment of the present invention.

[0024] In the figure, 1, shell; 11, shell body; 111, first accommodating cavity; 112, second accommodating cavity; 12, back cover; 2, bracket; 21, installation channel; 211, positioning convex strip; 22, connecting hole; 23, positioning block; 24, installation plate; 241, wiring harness groove; 25, installation sleeve; 3, PCB board; 4, rotor; 41, connecting sleeve; 411, cylinder; 4111, reinforcing rib; 4112, groove; 412, connecting plate; 4121, through hole; 4122, positioning groove; 42, connecting rod; 421, first rod body; 422, second rod body; 423, connecting block; 5, potentiometer; 51, contact piece; 511, connecting groove. DETAILED DESCRIPTION

[0025] The technical scheme in this embodiment will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

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

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

[0028] In addition, the technical solutions between the various embodiments of the present invention may be combined with each other, but this must be based on the fact that they can be implemented by those skilled in the art. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0029] like Figure 1-7As shown, an angle control structure of a vehicle-mounted ceiling screen includes a shell 1 and a bracket 2 connected to the ceiling screen, a PCB board 3 and a rotor 4 are arranged in the shell 1, a potentiometer 5 is fixedly arranged on the PCB board 3, the bracket 2 is connected to a contact piece 51 in the potentiometer 5 via the rotor 4, the potentiometer 5 and the rotor 4 are both mature parts and can be directly purchased from the market, a mounting channel 21 with openings at both ends is arranged on the bracket 2, the rotor 4 includes an integrally formed connecting sleeve 41 and a connecting rod 42, the connecting sleeve 41 is located in the mounting channel 21 and connected to the bracket 2, the connecting rod 42 is located outside the mounting channel 21, one end of the connecting rod 42 is located outside the opening and connected to the mounting channel 21 The central axis is staggered, the other end of the connecting rod 42 is connected to the contact piece 51 and is coaxially arranged with the central axis of the installation channel 21. The bracket 2 rotates driven by the ceiling screen, and the rotor 4 is connected to the bracket 2, thereby driving the contact piece 51 on the potentiometer 5 to rotate. The contact piece 51 rotates to contact different positions and outputs different resistances. The main control unit on the car will process them into corresponding different angles, thereby realizing the control of the flipping angle of the ceiling screen. It can be maturely applied to angle control structure with stable performance and low cost. The installation channel 21 is not only used for the installation of the rotor 4, but also for the wiring harness to pass through. The end of the connecting rod 42 of the rotor 4 connected to the bracket 2 is located outside the installation channel 21, which is convenient for the wiring harness to pass through without affecting the wiring harness.

[0030] The connecting rod 42 includes a first rod body 421 and a second rod body 422. The first rod body 421 is integrally formed with the connecting sleeve 41, and the second rod body 422 is connected to the contact piece 51. The angle between the first rod body 421 and the second rod body 422 is an obtuse angle, which does not affect the connection between the connecting rod 42 and the contact piece 51, and provides a space for accommodating the wiring harness, and the structural layout is reasonable. The connecting rod 42 is provided with a connecting block 423, and the contact piece 51 is provided with a connecting groove 511. The connecting block 423 is inserted into the connecting groove 511, so that the rotor 4 can better drive the contact piece 51 to rotate synchronously with it when rotating. The matching structure of the connecting block 423 and the connecting groove 511 is tight, and it is more convenient without the need to use other parts for connection.

[0031] The connecting sleeve 41 is arranged in an inverted "U" shape, and includes a barrel 411 and a connecting plate 412. The barrel 411 is located in the installation channel 21, and the connecting plate 412 is located outside the installation channel 21 and connected to the bracket 2. The connecting rod 42 and the connecting plate 412 are arranged in one piece. The connecting sleeve 41 can position the wiring harness in the installation channel 21 to stabilize its structure. A plurality of reinforcing ribs 4111 are arranged on the outer wall of the barrel 411 along its axial direction, so that the connecting sleeve 41 has high strength and a firm structure.

[0032] The inner wall of the installation channel 21 is provided with a positioning convex strip 211 , and the outer wall of the cylinder 411 is provided with a groove 4112 . When the cylinder 411 is located in the installation channel 21 , the positioning convex strip 211 is located in the groove 4112 . The bracket 2 is provided with a connecting hole 22 and a positioning block 23. The connecting hole 22 is opened on the positioning convex strip 211. The connecting plate 412 is correspondingly provided with a through hole 4121 and a positioning groove 4122. When the cylinder 411 is located in the installation channel 21, the positioning block 23 is located in the connecting groove 511. The through hole 4121 is arranged opposite to the connecting hole 22 and a connecting piece is inserted in the connecting hole 22 to realize the connection between the connecting sleeve 41 and the bracket 2. The setting of the positioning convex strip 211 can be connected with the connecting sleeve 41 to better drive the rotor 4 to rotate synchronously. At the same time, the positioning convex strip 211 can be installed and positioned to facilitate the installation of the rotor 4, and the wall thickness can be increased to facilitate the connection plate 412 to be fixed to the bracket 2 by screws. The setting of the positioning groove 4122 and the positioning block 23 is convenient for identifying the orientation during installation and can be installed quickly.

[0033] The bracket 2 includes an integrally formed mounting plate 24 and a mounting sleeve. The mounting sleeve is hollow to form the mounting channel 21. The mounting plate 24 is provided with a harness groove 241 which communicates with the mounting channel 21. The mounting plate 24 is connected to the ceiling screen, and the mounting sleeve 25 is connected to the rotor 4. It is used for the installation of the harness, and the harness groove 241 plays a guiding and positioning role.

[0034] The housing 1 includes a shell body 11 and a back cover 12 which are arranged in a split manner. The shell body 11 is provided with a first accommodating chamber 111 and a second accommodating chamber 112. The end of the mounting sleeve extends into the first accommodating chamber 111. The rotor 4 is rotatably arranged in the first accommodating chamber 111. The angle PCB board 3 and the potentiometer 5 are arranged in the second accommodating chamber 112. The back cover 12 is located at the rear side of the second accommodating chamber 112 and is connected to the shell body 11. The split arrangement facilitates the installation of the rotor 4 and the PCB board 3. The back cover 12 is connected to the shell body 11 by screws to install the PCB board 3 in the second accommodating chamber 112.

Claims

1. An angle control structure for a vehicle-mounted ceiling screen, characterized in that: The invention comprises a housing (1) and a bracket (2) connected to a ceiling screen, wherein a PCB board (3) and a rotor (4) are arranged in the housing (1), a potentiometer (5) is fixedly arranged on the PCB board (3), the bracket (2) and a contact piece (51) in the potentiometer (5) are connected via the rotor (4), the bracket (2) is provided with a mounting channel (21) with openings at both ends, the rotor (4) comprises an integrally formed connecting sleeve (41) and a connecting rod (42), the connecting sleeve (41) is located in the mounting channel (21) and connected to the bracket (2), the connecting rod (42) is located outside the mounting channel (21), one end of the connecting rod (42) is located outside the opening and is offset from the central axis of the mounting channel (21), and the other end of the connecting rod (42) is connected to the contact piece (51) and is coaxially arranged with the central axis of the mounting channel (21).

2. The angle control structure of the vehicle-mounted ceiling screen according to claim 1 is characterized in that: The connecting rod (42) comprises a first rod body (421) and a second rod body (422); the first rod body (421) and the connecting sleeve (41) are integrally formed; the second rod body (422) is connected to the contact piece (51); and the angle between the first rod body (421) and the second rod body (422) is an obtuse angle.

3. The angle control structure of the vehicle-mounted ceiling screen according to claim 1 or 2, characterized in that: The connecting rod (42) is provided with a connecting block (423), the contact piece (51) is provided with a connecting groove (511), and the connecting block (423) is inserted into the connecting groove (511).

4. The angle control structure of the vehicle-mounted ceiling screen according to claim 1 or 2, characterized in that: The connecting sleeve (41) is arranged in an inverted "U" shape, and comprises a cylinder body (411) and a connecting plate (412); the cylinder body (411) is located in the installation channel (21); the connecting plate (412) is located outside the installation channel (21) and is connected to the bracket (2); and the connecting rod (42) and the connecting plate (412) are arranged integrally.

5. The angle control structure of the vehicle-mounted ceiling screen according to claim 4 is characterized in that: A positioning convex strip (211) is provided on the inner side wall of the installation channel (21), and a groove (4112) is provided on the outer side wall of the cylinder (411); when the cylinder (411) is located in the installation channel (21), the positioning convex strip (211) is located in the groove (4112).

6. The angle control structure of the vehicle-mounted ceiling screen according to claim 5, characterized in that: The bracket (2) is provided with a connecting hole (22) and a positioning block (23); the connecting hole (22) is formed on the positioning convex strip (211); the connecting plate (412) is correspondingly provided with a through hole (4121) and a positioning groove (4122); when the cylinder (411) is located in the installation channel (21), the positioning block (23) is located in the connecting groove (511); the through hole (4121) and the connecting hole (22) are arranged opposite to each other, and a connecting piece is inserted into the connecting hole (22) to realize the connection between the connecting sleeve (41) and the bracket (2).

7. The angle control structure of the vehicle-mounted ceiling screen according to claim 4, characterized in that: A plurality of reinforcing ribs (4111) are provided on the outer side wall of the cylinder (411) along its axial direction.

8. The angle control structure of the vehicle-mounted ceiling screen according to claim 1 or 2, characterized in that: The bracket (2) comprises an integrally formed mounting plate (24) and a mounting sleeve, the mounting sleeve being hollow to form the mounting channel (21), and the mounting plate (24) being provided with a harness groove (241) communicating with the mounting channel (21).

9. The angle control structure of the vehicle-mounted ceiling screen according to claim 8, characterized in that: The housing (1) comprises a split housing (11) and a rear cover (12); the housing (11) is provided with a first accommodating chamber (111) and a second accommodating chamber (112); the end of the mounting sleeve extends into the first accommodating chamber (111); the rotor (4) is rotatably arranged in the first accommodating chamber (111); the angle PCB board (3) and the potentiometer (5) are arranged in the second accommodating chamber (112); and the rear cover (12) is located at the rear side of the second accommodating chamber (112) and is connected to the housing (11).

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