CN216851615U - High-precision transmission flexible screen driving module and flexible screen assembly comprising same - Google Patents
High-precision transmission flexible screen driving module and flexible screen assembly comprising same Download PDFInfo
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- CN216851615U CN216851615U CN202220181272.6U CN202220181272U CN216851615U CN 216851615 U CN216851615 U CN 216851615U CN 202220181272 U CN202220181272 U CN 202220181272U CN 216851615 U CN216851615 U CN 216851615U
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Abstract
The utility model discloses a high-precision transmission flexible screen driving module, which comprises a supporting frame, a speed reducing motor, an output gear and two groups of motion transmission units, wherein the output gear is fixedly arranged on an output shaft of the speed reducing motor; the motion transfer unit comprises a sliding guide rod, a screw rod mechanism and a transmission gear, the screw rod mechanism comprises a screw rod and a screw rod nut, one end of the screw rod, which is close to the output gear, is fixedly provided with the transmission gear, and the transmission gear is positioned between the bearing and the threaded part of the screw rod; the screw thread parts on the two lead screws are opposite in rotation direction; the output gear is positioned between the two transmission gears and is meshed with each transmission gear. The utility model discloses a gear motor controls two lead screw synchronous rotations through gear drive, can realize two lead screw nuts and move in opposite directions or back on the back mutually in step, and the expansion bracket that drives flexible screen subassembly through these two lead screw nuts is flexible to can realize the exhibition of flexible screen and contract, can realize the high accuracy transmission.
Description
Technical Field
The utility model belongs to flexible screen field, more specifically relates to a driven flexible screen drive module of high accuracy and contain its flexible screen subassembly.
Background
Flexible screen, refers to flexible OLED. The successful mass production of the flexible screen is not only greatly better than the manufacturing of a new generation of high-end smart phone, but also has a profound influence on the application of wearable equipment due to the characteristics of low power consumption and flexibility, and the flexible screen can be widely applied along with the continuous penetration of a personal intelligent terminal in the future. OLEDs are thin and can be mounted on flexible materials such as plastic or metal foils. Instead of glass, plastic can make the display more durable and lighter. The flexible OLED panel is concave from top to bottom with a bending radius of 700 mm.
Compared with a traditional screen, the flexible screen has the advantages of being obvious, being lighter and thinner in size and lower in power consumption than original devices, being beneficial to improving the cruising ability of equipment, and meanwhile, based on the characteristics of being bendable and good in flexibility, the durability of the flexible screen is greatly higher than that of the traditional screen, and the probability of accidental damage of the equipment is reduced.
With the continuous breakthrough of the OLED flexible screen technology, a lot of convenience is brought to the function development of electronic products using flexible screens, for example, on the new function innovation of consumer electronic products such as mobile phones, IPADs, autopilot head-up displays or center control panels, the flexible screens bent in a U shape can be properly expanded or retracted in different use occasions, that is, the two ends of the flexible screens bent in a U shape are moved relatively or oppositely.
Based on the realization that the expansion bracket of the consumer electronic product and the flexible screen on the expansion and contraction expansion bracket need to be moved simultaneously, when the flexible screen with larger area is expanded and contracted, larger thrust is needed, if the flexible screen is slid by only manpower, the labor is consumed, and the clamping shell is easily caused by improper force; meanwhile, the flexible screen and the telescopic frame are generally flat in structure, and a difficult problem is brought to the design of a power mechanism.
SUMMERY OF THE UTILITY MODEL
To the above defect of prior art or improve the demand, the utility model provides a high accuracy driven flexible screen drive module and contain its flexible screen subassembly, gear motor size can be enough little, lets gear motor output higher power to drive arrangement promotes the expansion bracket of flexible screen subassembly reliably and stretches out and draws back, makes the flexible screen can smoothly, remove fast.
For realizing above-mentioned purpose, according to the utility model discloses an aspect provides the driven flexible screen drive module of high accuracy, a serial communication port, including support frame, gear motor, output gear and two sets of motion transmission units, wherein:
the speed reducing motor is arranged on the supporting frame, and an output gear is fixedly arranged on an output shaft of the speed reducing motor;
for each group of motion transmission units, each group of motion transmission units comprises a sliding guide rod, a lead screw mechanism and a transmission gear, the lead screw mechanism comprises a lead screw and a lead screw nut, each end of the lead screw is rotatably mounted on the support frame through a bearing respectively, the sliding guide rod is mounted on the support frame, the sliding guide rod is parallel to the lead screw, the lead screw is parallel to an output shaft of the speed reducing motor, the lead screw nut is mounted on the lead screw in a penetrating manner, the lead screw nut is mounted on the sliding guide rod in a sliding manner, the transmission gear is fixedly mounted at one end, close to the output gear, of the lead screw, and the transmission gear is located between the bearing and a threaded part of the lead screw;
the screw thread parts on the two lead screws are opposite in rotation direction;
the output gear is positioned between the two transmission gears and is meshed with each transmission gear;
the central line of the output shaft of the speed reducing motor and the central lines of the two lead screws are on the same plane, and the central lines of the two lead screws are symmetrically arranged relative to the central line of the output shaft of the speed reducing motor.
Preferably, in the length direction of the reduction motor, the casing of the reduction motor extends beyond the lead screw.
Preferably, the bearing is a rolling bearing.
Preferably, the motor of the reduction motor is a stepping motor.
According to another aspect of the utility model, still provide a flexible screen subassembly, include flexible screen drive module, its characterized in that still includes expansion bracket and flexible screen to:
the telescopic frame comprises two comb plates which can move relatively, and the teeth of one comb plate are inserted into the other comb plate;
the flexible screen is bent into a U shape and wraps the telescopic frame;
each side of the opening of the flexible screen is correspondingly arranged on one comb plate;
the lead screw nut of each flexible screen driving module is respectively connected with one comb plate, so that the two comb plates are close to or far away from each other.
Generally, through the utility model discloses above technical scheme who conceives compares with prior art, can gain following beneficial effect:
1) the driving module of the utility model is provided with two sets of motion transmission units on the same support frame according to the same structure mode, the speed reducing motor controls two lead screws to synchronously rotate through the gear transmission mechanism, so that two lead screw nuts can synchronously move in the linear direction in opposite directions or in opposite directions, and the expansion frame of the flexible screen component is driven to expand and contract through the two lead screw nuts, thereby realizing the expansion and contraction of the flexible screen; and the utility model discloses a gear drive of high accuracy can drive two synchronous rotations of lead screw through a gear motor, and drive efficiency is high.
2) The utility model discloses a flexible screen subassembly's expansion bracket can be fast at drive module's drive quick travel down, and the fishback is control mutually independently moreover, and each other does not influence, can let flexible screen smoothly contract or expand.
Drawings
FIG. 1 is an exploded schematic view of the present invention;
FIG. 2 is a partial view of the meshing portion of the output gear and the transmission gear of the present invention;
fig. 3 is a bottom view of the flexible screen assembly of the present invention when retracted;
fig. 4 is a perspective view of the flexible screen assembly of the present invention when retracted;
fig. 5 is a bottom view of the flexible screen assembly of the present invention when expanded;
fig. 6 is a perspective view of the flexible screen assembly of the present invention when expanded;
fig. 7 is a perspective view of the flexible screen assembly according to the present invention when retracted;
fig. 8 is a perspective view of the flexible screen assembly of the present invention when expanded;
FIG. 9 is a perspective view of the telescopic frame of the middle flexible screen assembly of the present invention when it is retracted
Fig. 10 is a perspective view of the expansion bracket of the middle flexible screen assembly according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
Referring to fig. 1 and 2, the flexible screen driving module with high precision transmission includes a supporting frame 240, a reduction motor 100, an output gear 110 and two sets of motion transmission units, wherein:
the motor of the reduction motor 100 is preferably a stepping motor, the reduction motor 100 is mounted on the support frame 240, the output gear 110 is fixedly mounted on the output shaft of the reduction motor 100, and the output gear 110 can transmit the power of the reduction motor 100.
For each group of motion transfer units, the motion transfer units comprise a sliding guide rod 250, a screw mechanism and a transmission gear 210, the screw mechanism comprises a screw 220 and a screw nut 230, each end of the screw 220 is rotatably mounted on the support frame 240 through a bearing 260, and the bearing 260 is preferably a rolling bearing 260, so that the screw 220 can flexibly rotate; the sliding guide rod 250 is mounted on the support frame 240, the sliding guide rod 250 is parallel to the lead screw 220, the lead screw 220 is parallel to the output shaft of the reduction motor 100, the lead screw nut 230 is mounted on the lead screw 220 in a penetrating manner, the lead screw nut 230 is mounted on the sliding guide rod 250 in a sliding manner, and the sliding guide rod 250 can guide the movement of the lead screw nut 230 and keep the lead screw nut 230 moving smoothly; one end of the lead screw 220 close to the output gear 110 is fixedly provided with the transmission gear 210, and the transmission gear 210 is positioned between the bearing 260 and the thread part of the lead screw 220.
The thread portions of the two lead screws 220 are opposite in rotation direction, and other parameters, such as thread pitch, lead, etc., are the same except for the rotation direction.
The output gear 110 is located between the two transmission gears 210, and the output gear 110 is meshed with each of the transmission gears 210, so that the rotation of the output gear 110 can drive the two transmission gears 210 to synchronously rotate, the rotation directions of the two transmission gears 210 are the same, and the screw nuts 230 on the two screw rods 220 can move towards or away from each other due to the opposite rotation directions of the threaded portions on the two screw rods 220.
The central line of the output shaft of the gear motor 100 and the central lines of the two lead screws 220 are on the same plane, and the central lines of the two lead screws 220 are symmetrically arranged about the central line of the output shaft of the gear motor 100, so that the structure is compact, high-precision transmission among gears is maintained, and vibration, impact and noise in gear operation are reduced.
Further, in the length direction of the reduction motor 100, the housing of the reduction motor 100 extends beyond the lead screw 220, so that the reduction motor 100 does not interfere with the movement of the lead screw nut 230, the two lead screws 220 can be arranged as close as possible, and the structure is compact.
According to another aspect of the present invention, there is provided a flexible screen assembly, including the flexible screen driving module, further including an expansion bracket 300 and a flexible screen 400, and:
the telescopic frame 300 comprises two comb plates 301 which can move relatively, and the teeth of one comb plate 301 are inserted into the other comb plate 301;
the flexible screen 400 is bent in a U-shape, and the flexible screen 400 wraps the telescopic frame 300;
each side of the opening of the flexible screen 400 is correspondingly installed on one comb plate 301;
the lead screw nut 230 of each flexible screen driving module is respectively connected with one comb plate 301, so that the two comb plates 301 are close to or far away from each other.
The reduction motor 100 may be operated by a button control provided on the telescopic frame 300 or by a remote control, which is located in the area where the telescopic frame 300 is located and does not affect the normal installation of the flexible screen 400, so as to maintain the compactness of the overall structure.
When the reduction motor 100 rotates, the output gear 110 and the transmission gear 210 transmit power to the lead screws 220, and the lead screw nuts 230 on the two lead screws 220 move toward or away from each other. When moving in opposite directions, the two comb plates 301 of the telescopic frame 300 are driven to approach each other, the flexible screen 400 mounted on the telescopic frame 300 contracts (the two ends at the opening of the flexible screen 400 approach each other), and when moving in opposite directions, the two comb plates 301 of the telescopic frame 300 are driven to move away from each other, and the flexible screen 400 mounted on the telescopic frame 300 expands (the two ends at the opening of the flexible screen 400 move away from each other).
Referring to fig. 3 and 4, the flexible screen assembly is in a normally contracted state; referring to fig. 5 and 6, the flexible screen assembly is in an expanded and enlarged state. The flexible screen assembly realizes the appearance state of the two sizes, and the flexible screen 400 bent into the U shape is required to be capable of folding back and translating as shown in fig. 7 and 8, and meanwhile, the telescopic frame 300 for supporting the flexible screen 400 also needs to satisfy the state of keeping the contraction to be small and the state of expanding to be large as shown in fig. 9 and 10.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. Driven flexible screen drive module of high accuracy, its characterized in that includes support frame, gear motor, output gear and two sets of motion transmission units, wherein:
the speed reducing motor is arranged on the supporting frame, and an output gear is fixedly arranged on an output shaft of the speed reducing motor;
for each group of motion transmission units, each group of motion transmission units comprises a sliding guide rod, a lead screw mechanism and a transmission gear, the lead screw mechanism comprises a lead screw and a lead screw nut, each end of the lead screw is rotatably mounted on the support frame through a bearing respectively, the sliding guide rod is mounted on the support frame, the sliding guide rod is parallel to the lead screw, the lead screw is parallel to an output shaft of the speed reducing motor, the lead screw nut is mounted on the lead screw in a penetrating manner, the lead screw nut is mounted on the sliding guide rod in a sliding manner, the transmission gear is fixedly mounted at one end, close to the output gear, of the lead screw, and the transmission gear is located between the bearing and a threaded part of the lead screw;
the screw thread parts on the two lead screws are opposite in rotation direction;
the output gear is positioned between the two transmission gears and is meshed with each transmission gear;
the central line of the output shaft of the speed reducing motor and the central lines of the two lead screws are on the same plane, and the central lines of the two lead screws are symmetrically arranged relative to the central line of the output shaft of the speed reducing motor.
2. The high precision geared flexible screen drive module of claim 1, wherein the gear motor housing extends beyond the lead screw in a length direction of the gear motor.
3. A high precision driven flexible screen drive module as claimed in claim 1, wherein the bearings are rolling bearings.
4. The high precision geared flexible screen drive module of claim 1, wherein the motor of the gear motor is a stepper motor.
5. A flexible screen assembly comprising the flexible screen drive module of any of claims 1 to 4, further comprising a telescopic frame and a flexible screen, and:
the telescopic frame comprises two comb plates which can move relatively, and the teeth of one comb plate are inserted into the other comb plate;
the flexible screen is bent into a U shape and wraps the telescopic frame;
each side of the opening of the flexible screen is correspondingly arranged on one comb plate;
the lead screw nut of each flexible screen driving module is respectively connected with one comb plate, so that the two comb plates are close to or far away from each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220181272.6U CN216851615U (en) | 2022-01-24 | 2022-01-24 | High-precision transmission flexible screen driving module and flexible screen assembly comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220181272.6U CN216851615U (en) | 2022-01-24 | 2022-01-24 | High-precision transmission flexible screen driving module and flexible screen assembly comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216851615U true CN216851615U (en) | 2022-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220181272.6U Active CN216851615U (en) | 2022-01-24 | 2022-01-24 | High-precision transmission flexible screen driving module and flexible screen assembly comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216851615U (en) |
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2022
- 2022-01-24 CN CN202220181272.6U patent/CN216851615U/en active Active
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