Display dithering mechanism

Abstract

The application provides a display damping elimination mechanism, which comprises a base, a rotating seat, a screen body, one side of the rotating seat is installed on the base, a deceleration motor is installed on the other side of the base, two rotating shafts are arranged on the two sides of the screen body, one of the rotating shafts is rigidly connected with an output shaft of the deceleration motor, and the other rotating shaft is connected with the rotating seat; an air spring rod is arranged on the base, a connecting support point is arranged on the screen body, a non-elongation end of the air spring rod is connected with the base, and an elongation end of the air spring rod is movably connected with the connecting support point. The air spring rod is arranged to reversely resist the rotating force of the deceleration motor, so that the gear of the output shaft of the deceleration motor is always in a one-way meshing state, and the reverse gap of the output shaft is eliminated; the load of the motor is reduced, the damping force needs not to be additionally overcome, the abrasion is reduced, and the motor can be used more stably and for a longer time.

Description

Technical Field

[0001] This invention relates to the field of vehicle display technology, and in particular to a display anti-shake mechanism. Background Technology

[0002] Due to cost constraints, the geared motors in vehicle-mounted electric flip displays cannot achieve zero hysteresis during continuous operation, causing the display screen to vibrate during use. Currently, the industry employs two methods to eliminate hysteresis: one is to forcibly tighten the gear pair, but this involves periodically increasing and decreasing the meshing tightness of the gear pair during operation. This results in constantly changing loads, causing periodic increases and decreases in operating noise. Over time, wear and tear lead to hysteresis and eventually vibration. Another method is to increase damping. However, this increases the load, requiring the motor to overcome additional damping force. Furthermore, as the damper wears down, the hysteresis-eliminating force gradually decreases, eventually leading to vibration. Summary of the Invention

[0003] To address the aforementioned problems, the present invention aims to provide a display anti-shake mechanism that eliminates hysteresis through a gas spring rod, thereby reducing the load on the motor.

[0004] This invention employs the following method: a display anti-shake mechanism includes a base, a rotating seat, and a screen. The rotating seat is mounted on one side of the base, and a geared motor is mounted on the other side of the base. A rotating shaft is provided on each side of the screen, one of which is rigidly connected to the output shaft of the geared motor, and the other is connected to the rotating seat. A gas spring rod is provided on the base, and a connecting support point is provided on the screen. The non-extended end of the gas spring rod is connected to the base, and the extended end of the gas spring rod is movably connected to the connecting support point.

[0005] Preferably, the connecting support point is located at the edge of the screen body near the axis of rotation.

[0006] Preferably, the extended end of the gas spring rod is hinged to the connecting support point.

[0007] Preferably, the extended end of the gas spring rod is slidably connected to the connecting support point.

[0008] Preferably, the non-extended end of the gas spring rod is connected to the base via a hinge, and a bushing is provided at the connection to eliminate the gap; a bushing is provided at the connection between the extended end of the gas spring rod and the connecting support point to eliminate the gap.

[0009] Preferably, it further includes a connecting rod sliding seat and a connecting rod, wherein the connecting support point is connected to the extended end of the gas spring rod through the connecting rod, one end of the connecting rod is movably connected to the connecting support point, and the other end of the connecting rod is movably connected to the extended end of the gas spring rod; the connecting rod sliding seat is fixed on the base, and a sliding groove is provided in the connecting rod sliding seat, wherein the connection between the connecting rod and the gas spring rod is recessed in the sliding groove and slides along the sliding groove.

[0010] Preferably, the slide groove has a C-shaped cross-section with the opening facing upwards. The slide groove extends from front to back through the connecting rod sliding seat. The extended end of the gas spring rod enters the slide groove from the end away from the connecting support point. The connecting rod enters the slide groove from the end near the connecting support point and connects with the extended end of the gas spring rod. Pulleys are provided on both sides of the connection between the connecting rod and the gas spring rod, which cooperate with the slide groove to play a limiting and guiding role.

[0011] Preferably, the extended ends of the connecting rod and the gas spring rod are connected through a rotating shaft, and a pulley is installed at each end of the rotating shaft.

[0012] Preferably, the non-extended end of the gas spring rod is mounted on the base via a mounting bracket.

[0013] Preferably, the middle part of the connecting rod is arched upward, and the width of the opening of the groove is the same as the width of the connecting rod.

[0014] The beneficial effects of this invention are as follows: This invention provides a display anti-shake mechanism, which, compared with the prior art, has at least the following technical effects: By setting a gas spring rod to resist the rotational force of the geared motor, the output shaft gear of the geared motor is always in a unidirectional meshing state, thus eliminating the backlash of the output shaft; the load on the motor is reduced, no additional damping force is needed, and wear is also reduced, enabling longer and more stable use. Furthermore, since the output shaft gear of the geared motor can always maintain unidirectional contact without backlash using the gas spring rod, stable meshing can be guaranteed even with reduced manufacturing precision, further reducing production costs. This is achieved by adding components such as a connecting rod, a connecting rod sliding base, and a gas spring rod mounting base to the basic structure. The connecting rod connects the gas spring rod to the screen support point, allowing the gas spring rod to extend and retract only along a straight line, while the screen connected to it can still rotate without jamming. The connection between the connecting rod and the gas spring rod can slide within the groove of the connecting rod sliding seat. Due to the combined action of the mounting seat connected to the extended end of the gas spring rod and the connecting rod sliding seat, the rotation of the gas spring rod is restricted when it extends or retracts. It can only extend or retract in a straight line, thus preventing the extended end of the gas spring rod from "tilting upwards" during extension and retraction. This solves the problem of increasing the overall thickness of the machine by avoiding the "tilting upwards" of the gas spring rod during assembly installation, and minimizes the overall thickness of the machine. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a display anti-shake mechanism according to Embodiment 1 of the present invention.

[0016] Figure 2 This is a partial cross-sectional schematic diagram of a display anti-shake mechanism according to Embodiment 1 of the present invention.

[0017] Figure 3 This is a schematic diagram of the removal base of a display anti-shake mechanism according to Embodiment 1 of the present invention.

[0018] Figure 4 This is a side view of a display anti-shake mechanism according to Embodiment 1 of the present invention when the screen is open.

[0019] Figure 5 This is a side view of a display de-shake mechanism according to Embodiment 1 of the present invention when the screen is closed.

[0020] Figure 6 This is a schematic diagram of a display de-shaking mechanism according to Embodiment 2 of the present invention.

[0021] Figure 7 This is a schematic diagram of a display de-shake mechanism after removing the base, according to Embodiment 2 of the present invention.

[0022] Figure 8 This is a schematic diagram of the discrete components of a display anti-shake mechanism according to Embodiment 2 of the present invention.

[0023] Figure 9 This is a cross-sectional view of a display anti-shake mechanism according to Embodiment 2 of the present invention after the screen is opened.

[0024] Figure 10 This is a cross-sectional schematic diagram of a display anti-shake mechanism after the screen is closed, according to Embodiment 2 of the present invention.

[0025] The reference numerals are as follows: 1-base, 2-gear motor, 21-output shaft, 3-gas spring rod, 31-extended end, 32-non-extended end, 4-screen body, 41-connecting support point, 42-rotating shaft, 5-rotating seat, 6-connecting rod, 7-connecting rod sliding seat, 71-slide groove, 8-mounting seat, 9-pulley. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0027] Example 1

[0028] Please see Figures 1 to 5A display anti-shake mechanism includes a base 1, a rotating seat 5, and a screen 4. The rotating seat 5 is mounted on one side of the base 1, and a geared motor 2 is mounted on the other side of the base 1. A rotating shaft 42 is provided on each side of the screen 4. One rotating shaft 42 is rigidly connected to the output shaft 21 of the geared motor 2, and the other rotating shaft 42 is connected to the rotating seat 5. A gas spring rod 3 is provided on the base 1, and a connecting support point 41 is provided on the screen 4. The non-extended end 32 of the gas spring rod 3 is connected to the base 1, and the extended end 31 of the gas spring rod 3 is movably connected to the connecting support point 41. The geared motor 2 provides rotational driving force for the screen 4. The gas spring rod 3 resists the rotational force of the geared motor 2, ensuring that the gear on the output shaft 21 of the geared motor 2 is always in a unidirectional meshing state, thus eliminating backlash in the output shaft 21. The rotating seat 5 provides rotational support for the rotating shaft 42 of the screen 4 and is concentric with the output shaft 21 of the geared motor 2.

[0029] Please see Figures 1 to 5 Preferably, the connecting support point 41 is located at the edge of the screen body 4 near the axis of the rotating shaft 42 to ensure that the gas spring rod 3 can properly eliminate hysteresis.

[0030] Please see Figures 1 to 5 Preferably, the extended end 31 of the gas spring rod is hinged to the connecting support point 41 to ensure that the screen body 4 can rotate and open and close normally without being limited or stuck.

[0031] Preferably, the extended end 31 of the gas spring rod and the connecting support point 41 can be slidably connected to ensure that the screen body 4 can rotate and open and close normally without being limited or stuck.

[0032] Please see Figures 1 to 5 Preferably, the non-extended end 32 of the gas spring rod 3 is connected to the base 1 via a hinge, and a bushing (not shown) is provided at the connection to eliminate gaps; a bushing (not shown) is provided at the connection between the extended end 31 of the gas spring rod 3 and the connecting support point 41 to eliminate gaps, so as to ensure smoother rotation.

[0033] This embodiment has the following working principle:

[0034] When screen 4 is closed, the gas spring is in the extended state. Figure 5 When the screen needs to be opened, the reduction motor 2 drives the screen body 4 to flip downwards. Because the connecting support point 41 of the screen body 4 is not concentric with the rotating shaft 42, as the screen body 4 rotates continuously, the gas spring rod 3 is continuously compressed. Figure 4The elastic force of the gas spring rod 3 reaches its maximum when the screen body 4 is opened to its maximum angle. Because the gas spring rod 3 is always under pressure during the rotation of the screen body 4, the output shaft 21 gear of the reduction motor 2 and the front gear always have a preload, making the gear meshing unidirectional and eliminating gear backlash. The typical opening angle of the screen body 4 is between 100° and 120°, at which time the elastic force of the gas spring rod 3 is close to its maximum. When the screen body 4 sways due to poor road conditions and the direction of the sway is towards the opening direction of the screen body 4, it creates an elongation action of the gas spring rod 3 (h1->h2), see [reference]. However, because the gears are in a tightly meshed state at this time, it creates resistance to the rotation of the screen body 4, preventing it from rotating in that direction. When the direction of the sway is towards the closing direction of the screen body 4, it creates a compression action on the gas spring rod 3 (h2->h1), and the gas spring rod 3 creates resistance to the rotation of the screen body 4, preventing it from rotating in that direction. Regardless of the direction of rotation, a force will be generated corresponding to the gas spring rod 3. Due to the characteristics of the gas spring rod 3, its reaction force changes with the speed of movement (the faster the speed, the greater the resistance). The rotation of the screen body 4 will be suppressed, thereby reducing vibration.

[0035] Example 2

[0036] Please see Figures 6 to 10 A display anti-shake mechanism includes a base 1, a rotating seat 5, a screen 4, a connecting rod sliding seat 7, and a connecting rod 6. The rotating seat 5 is installed on one side of the base 1, and a geared motor 2 is installed on the other side of the base 1. A rotating shaft 42 is provided on each side of the screen 4. One rotating shaft 42 is rigidly connected to the output shaft 21 of the geared motor 2, and the other rotating shaft 42 is connected to the rotating seat 5. A connecting support point 41 is provided on the screen 4. The non-extended end 32 of the gas spring rod 3 is connected to the base 1. The connecting support point 41 and the extended end 31 of the gas spring rod 3 are connected through the connecting rod 6. One end of the connecting rod 6 is movably connected to the connecting support point 41, and the other end of the connecting rod 6 is movably connected to the extended end 31 of the gas spring rod 3. The connecting rod sliding seat 7 is fixed on the base 1, and a sliding groove 71 is provided inside the connecting rod sliding seat 7. The connection between the connecting rod 6 and the gas spring rod 3 is recessed in the sliding groove 71 and slides along the sliding groove 71. The gas spring rod 3 is connected to the screen body 4 by the connecting support point 41 via the connecting rod 6, so that the gas spring rod 3 can extend and retract only along a straight line, while the screen body 4 connected to it can still rotate without getting stuck.

[0037] Please see Figures 6 to 10Preferably, the slide groove has a C-shaped cross-section with the opening facing upwards. The slide groove extends from front to back through the connecting rod sliding seat 7. The extended end 31 of the gas spring rod 3 enters the slide groove from the end away from the connecting support point 41. The connecting rod 6 enters the slide groove from the end near the connecting support point 41 and connects with the extended end 31 of the gas spring rod 3. Pulleys are provided on both sides of the connection between the connecting rod 6 and the gas spring rod 3, which cooperate with the slide groove to play a limiting and guiding role. This ensures that the extension and retraction of the gas spring rod 3 are along the direction of the slide groove, and it can only rotate in a straight line, without rotating or tilting during extension and retraction. Furthermore, the connection of the connecting rod 6 connected to the gas spring rod 3 can only move along the slide groove.

[0038] Please see Figures 6 to 10 Preferably, the extended end 31 of the connecting rod 6 and the gas spring rod 3 is inserted into the rotating shaft and connected. A pulley 9 is installed at each end of the rotating shaft, so that the contact point between the gas spring rod 3 and the connecting rod 6 can move more smoothly in the sliding groove 71.

[0039] Please see Figures 6 to 10 Preferably, the non-extended end 32 of the gas spring rod 3 is mounted on the base 1 via the mounting seat 8, which is used to fix the non-extended end 32 of the gas spring rod 3.

[0040] Please see Figures 6 to 10 Preferably, the middle part of the connecting rod 6 is arched upward, and the width of the opening of the slide groove is the same as the width of the connecting rod 6, so that the screen body 4 can have a larger rotation angle and the installation height of the gas spring rod 3 on the base 1 can be reduced, so that it is closer to the base 1, so as to further reduce the thickness of the whole machine.

[0041] This embodiment has the following working principle:

[0042] Compared to Embodiment 1, which does not use the connecting rod 6 to connect the gas spring and the screen 4, the hinge point of the non-extended end 32 of the gas spring rod 3 is higher to ensure that the screen 4 can open and close normally without being jammed. In addition, the front end of the connecting support point 41 between the gas spring rod 3 and the screen 4 tilts up when the screen 4 is rotated open, resulting in a thicker overall package thickness. This requires adding components such as the connecting rod 6, the sliding base 1 of the connecting rod 6, and the mounting base 8 of the gas spring rod 3 to the basic structure of Embodiment 1. Figures 6-8 As shown). The connection between connecting rod 6 and gas spring rod 3 can slide within the groove of connecting rod sliding seat 7. Figures 6 to 10As shown, due to the combined action of the mounting base and the connecting rod sliding seat 7 connected to the extended end 31 of the gas spring rod 3, the rotation of the gas spring rod 3 is restricted when it is extended or shortened. It can only extend or retract in a straight line, which prevents the extended end 31 of the gas spring rod 3 from "tilting upward" when it is extended or shortened. This solves the problem of the overall thickness increasing when the assembly is installed to avoid the movement of the gas spring rod 3 "tilting upward".

[0043] Several points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0044] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0045] Finally, the above description is only a preferred embodiment of the present invention, and the scope of protection of the present invention is not limited to the above embodiments. All technical solutions that fall within the scope of the present invention are within the scope of protection of the present invention.

[0046] It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of this invention should also be considered within the scope of protection of this invention.

Claims

1. A display dithering mechanism characterized by: The device includes a base, a rotating seat, and a screen. The rotating seat is mounted on one side of the base, and a geared motor is mounted on the other side of the base. A rotating shaft is located on each side of the screen; one rotating shaft is rigidly connected to the output shaft of the geared motor, and the other rotating shaft is connected to the rotating seat. A gas spring rod is mounted on the base, and a connecting support point is located on the screen. The non-extended end of the gas spring rod is connected to the base, and the extended end of the gas spring rod is movably connected to the connecting support point. The gas spring rod is used to resist the rotational force of the geared motor, ensuring that the output shaft gear of the geared motor is always in a unidirectional meshing state, thus eliminating... Besides the output shaft backlash, it also includes a connecting rod sliding seat and a connecting rod. The connecting support point is connected to the extended end of the gas spring rod through the connecting rod. One end of the connecting rod is movably connected to the connecting support point, and the other end of the connecting rod is movably connected to the extended end of the gas spring rod. The connecting rod sliding seat is fixed on the base, and a sliding groove is provided in the connecting rod sliding seat. The connection point between the connecting rod and the gas spring rod is recessed in the sliding groove and slides along the sliding groove. The connecting support point is located in the middle of the rotating shaft of the screen body, near the motor. The middle part of the connecting rod is arched upward, and the width of the opening of the sliding groove is the same as the width of the connecting rod.

2. A display dithering mechanism as claimed in claim 1, characterized in that: The connecting support point is located at the edge of the screen body, near the axis of the rotation shaft.

3. The display de-jitter mechanism of claim 1, wherein: The extended end of the gas spring rod is hinged to the connecting support point.

4. The display de-jitter mechanism of claim 1, wherein: The extended end of the gas spring rod is slidably connected to the connecting support point.

5. The display de-jitter mechanism of claim 1, wherein: The non-extended end of the gas spring rod is connected to the base via a hinge, and a bushing is provided at the connection to eliminate the gap; a bushing is also provided at the connection point between the extended end of the gas spring rod and the connecting support point to eliminate the gap.

6. The display de-jitter mechanism according to claim 1, characterized in that: The slide groove has a C-shaped cross-section with the opening facing upwards. The slide groove passes through the connecting rod sliding seat from front to back. The extended end of the gas spring rod enters the slide groove from the end away from the connecting support point. The connecting rod enters the slide groove from the end near the connecting support point and connects with the extended end of the gas spring rod. Pulleys are provided on both sides of the connection between the connecting rod and the gas spring rod, which cooperate with the slide groove to play a limiting and guiding role.

7. A display de-jitter mechanism according to claim 6, characterized in that: The extended ends of the connecting rod and the gas spring rod are connected through a rotating shaft, and a pulley is installed at each end of the rotating shaft.

8. A display de-jitter mechanism according to claim 1, characterized in that: The non-extended end of the gas spring rod is mounted on the base via a mounting bracket.

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