Electronic device with screen
A cost-effective lock pin mechanism stabilizes rotating screens in electronic devices by securing them in horizontal or vertical positions, addressing radial looseness issues in camera stabilizers.
Patent Information
- Application Number
- CN202421706156.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-07-17
AI Technical Summary
In the prior art, electronic products with rotatable screens have empty strokes in the radial direction due to stepper motors with low cost, resulting in loosening of the gimbal, affecting the user experience, and existing solutions increase product costs.
The simple locking pin scheme is adopted, and the locking pin is inserted into the locking screen when the screen is rotated to horizontal or vertical screen. The limiting mechanism is used to abut the shaft to fix the screen in the preset position.
It effectively suppresses the shaking of the screen in the circumferential direction, improves the screen positioning accuracy, reduces product costs, and maintains the simplicity of the structure and space efficiency.
Smart Images
Figure CN223110054U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of electronic devices, and particularly relates to an electronic device with a screen. Background Art
[0002] Due to cost limitations, electronic products with a rotatable screen often choose to use a stepper motor with a lower cost to drive the screen to rotate. However, due to the low dimensional assembly accuracy of the internal transmission gear mechanism, there is an empty stroke (play) in the radial direction of its output shaft. When it is applied to the gimbal product mechanism, due to the increase in product size and the lengthening of the lever arm, the radial play of the motor shaft will be further amplified, resulting in obvious radial looseness of the gimbal when the user uses it, bringing a very poor experience to the user.
[0003] Most of the products on the market currently use a brushless motor with a higher cost, or a stepper motor with a higher gear transmission structure accuracy, or a brushless motor with a greater torque to cooperate with a complex structure to achieve self-locking, which undoubtedly leads to a significant increase in product cost. Summary of the Utility Model
[0004] In order to solve the above technical problems, the utility model provides an electronic device with a screen, and a simple lock pin solution is adopted to insert and lock the screen when the screen rotates to the landscape or portrait state.
[0005] An embodiment of the utility model provides an electronic device with a screen, including:
[0006] A screen bracket, the screen is fixed to the screen bracket, the screen bracket has a central axis perpendicular to the screen, and the central axis corresponds to the center point of the screen bracket and the center of the screen;
[0007] A stepper motor, the stepper motor drives the screen bracket to rotate around the central axis via a shaft disc;
[0008] A limiting mechanism, the limiting mechanism has a degree of freedom of movement along the direction of the central axis to limit the screen to a preset position by abutting against the shaft disc.
[0009] In one embodiment, the electronic device includes:
[0010] A housing, a cavity is formed inside the housing, the stepper motor and the screen bracket are installed in the cavity, and the screen is exposed outside the housing;
[0011] A motor bracket, the motor bracket supports the stepper motor in the cavity.
[0012] In one embodiment, the limiting mechanism includes:
[0013] A locking pin, which is supported on the motor bracket via an elastic element, and the locking pin extends along the direction of the central axis;
[0014] A groove, which is opened on the side of the shaft disc facing away from the screen, and the groove receives the front end of the locking pin.
[0015] In one embodiment, the position where the front end of the locking pin is received in the groove corresponds to the free state or the compressed state of the elastic element.
[0016] In one embodiment, four such grooves are included, and the grooves are arranged on the shaft disc at equal angular intervals.
[0017] In one embodiment, the position of the groove corresponds to a preset position of the screen, and the preset position is a position where one edge of the screen extends along the horizontal direction or the vertical direction.
[0018] In one embodiment, both sides of the groove along the circumferential direction of the shaft disc have inclined side walls, and the inclined side walls form a first included angle with the central axis.
[0019] In one embodiment, the front end of the locking pin has a chamfer that cooperates with the inclined side wall.
[0020] In one embodiment, the rear end of the locking pin has a slot, one end of the elastic element is fixed to the slot, and the other end is fixed to the motor bracket.
[0021] In one embodiment, the radial edge of the shaft disc is rotationally supported on the motor bracket via a bearing.
[0022] As can be seen from the above technical solutions, this embodiment provides an electronic device with a screen. Through a simple locking pin solution, the screen is locked by inserting the locking pin when the screen rotates to the landscape or portrait state. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The following drawings only schematically illustrate and explain the present invention, and do not limit the scope of the present invention.
[0024] Figure 1 is a schematic structural diagram of the electronic device with a screen of the present invention.
[0025] Figure 2 is a schematic structural diagram of the limiting mechanism of the electronic device with a screen of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0026] To have a clearer understanding of the technical features, objectives, and effects of the utility model, the specific embodiments of the utility model will now be described with reference to the accompanying drawings. The same reference numerals represent the same parts in the various figures.
[0027] In this document, "schematic" means "serving as an example, instance, or illustration". Any illustration or embodiment described as "schematic" in this document should not be construed as a more preferred or advantageous technical solution.
[0028] To simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and do not represent the actual structure of the product. Additionally, to simplify the drawings for easier understanding, in some figures, only one of the components with the same structure or function is schematically illustrated, or only one of them is labeled.
[0029] In this document, "upper", "lower", "front", "rear", "left", "right", etc. are only used to represent the relative positional relationship between relevant parts, rather than limiting the absolute positions of these relevant parts.
[0030] In this document, "first", "second", etc. are only used for distinguishing between each other, rather than indicating importance, order, or the prerequisite for mutual existence, etc.
[0031] In this document, "equal", "same", etc. are not strict mathematical and / or geometric limitations, and also include errors that can be understood by those skilled in the art and are allowed in manufacturing or using, etc. Unless otherwise specified, the numerical ranges in this document include not only the entire range between its two endpoints, but also several sub-ranges contained therein.
[0032] Now, each exemplary embodiment will be described more fully with reference to the accompanying drawings.
[0033] As Figures 1 to 2 shown, an embodiment of the utility model provides an electronic device with a screen, including:
[0034] A screen bracket 10, the screen is fixed to the screen bracket 10, the screen bracket 10 has a central axis perpendicular to the screen, and the central axis corresponds to the center point of the screen bracket and the center of the screen;
[0035] A stepper motor 20, the stepper motor 20 drives the screen bracket 10 to rotate around the central axis via a shaft disc 30;
[0036] A limiting mechanism 40, the limiting mechanism 40 has a degree of freedom of movement along the direction of the central axis to limit the screen to a preset position by abutting against the shaft disc 30.
[0037] In this embodiment, the screen bracket 10 for supporting the screen still uses a stepping motor 20 with a relatively low cost and low precision for driving. Inevitably, there is a dead zone in the radial direction of the output shaft of the stepping motor 20, which will cause the screen bracket 10 to wobble in the circumferential direction and cannot be fixed at a predetermined position. In this embodiment, a limiting mechanism 40 that moves along the central axis direction is further provided. When the limiting mechanism 40 abuts against the shaft disc 30, it can prevent the screen bracket 10 from wobbling in the circumferential direction, thereby limiting the screen to a preset position corresponding to the abutting position.
[0038] Among them, the limiting mechanism 40 has a degree of freedom of movement along the central axis direction to switch between a limiting position where it limits the shaft disc 30 and an unlocking position where it releases the limit on the shaft disc 30.
[0039] Among them, the electronic device includes:
[0040] A housing 1, a cavity is formed inside the housing 1, the stepping motor 20 and the screen bracket 10 are installed in the cavity, and the screen is exposed outside the housing 1;
[0041] A motor bracket 21, and the motor bracket 21 supports the stepping motor 20 in the cavity.
[0042] Specifically, the limiting mechanism 40 includes:
[0043] A locking pin 41, the locking pin 41 is supported by an elastic element 42 on the motor bracket 21, and the locking pin 41 extends along the central axis direction;
[0044] A groove 43, the groove 43 is opened on the side of the shaft disc 30 facing away from the screen, and the groove 43 receives the front end of the locking pin 41.
[0045] The limiting mechanism 40 forms an abutting limit with the shaft disc 30 through the cooperation of the locking pin 41 and the groove 43. Among them, the front end of the locking pin 41 is received in the groove 43, and is limited in the circumferential direction by the side wall of the groove 43.
[0046] Among them, the position where the front end of the locking pin 41 is received in the groove 43 corresponds to the free state or the compressed state of the elastic element 42.
[0047] That is to say, the bottom wall of the groove 43 corresponds to the farthest stroke of the elastic element 42, which corresponds to the free state or the compressed state of the elastic element 42. Then, when the shaft disc 30 rotates to a position corresponding to the locking pin 41, the front end of the locking pin 4 is necessarily driven to the limiting position where the front end is received in the groove 43 under the compression energy storage of the elastic element 42.
[0048] In a preferred example, four grooves 43 are included, and the grooves 43 are arranged on the shaft disc 30 at equal angular intervals.
[0049] Specifically, the angular interval of each groove 43 is 90°.
[0050] Among them, the position of the groove 43 corresponds to a preset position of the screen, and the preset position is a position where one of the edges of the screen extends along the horizontal direction or the vertical direction.
[0051] Since most screens are rectangular in shape, the resting position of the screen is mostly a position where the long side of the screen extends along the horizontal direction or the vertical direction. Correspondingly, the position where the groove 43 mates with the locking pin 41 corresponds to a position where the long side of the screen extends along the horizontal direction or the vertical direction.
[0052] Specifically, both sides of the groove 43 along the circumferential direction of the shaft disc 30 have inclined side walls, and the inclined side walls form a first included angle with the central axis.
[0053] Four grooves 43 are distributed on the circumference of the shaft disc 30 at an interval of 90 degrees. After the shaft disc 30 rotates 90 degrees, the locking pin 41 is inserted into another groove 43 on the shaft disc 30 to provide a locking force. Preferably, the greater the slope of the inclined side wall of the groove 43, the greater the locking force, and the smaller the slope, the smaller the locking force. The inclined side wall is used to guide the locking pin 41 out of the groove 43.
[0054] When the motor drives the shaft disc to rotate, the locking pin 41 slides backward along the inclined side wall of the groove 43. While the locking pin 41 slides backward in the groove 43, it squeezes the elastic element 42. When the motor drives the shaft disc to rotate 90°, the groove 43 of the shaft disc 30 is facing the locking pin 41 at this time, and the front end of the locking pin 41 has no obstruction. At this time, the elastic element is released to push the locking pin 41 to slide forward, and the front end of the locking pin 41 is inserted into the groove 43 to lock the shaft disc 30 and play a role in suppressing the virtual position of the screen.
[0055] Optionally, the front end of the locking pin 41 has a chamfer that cooperates with the inclined side wall.
[0056] In a preferred example, the rear end of the locking pin 41 has a slot, one end of the elastic element 42 is fixed to the slot, and the other end is fixed to the motor bracket 21.
[0057] Among them, the shaft disc 30 is fixed to the output shaft of the stepper motor 20 via a fastener 31. And the radial edge of the shaft disc 30 is rotationally supported by the motor bracket 21 via a bearing 44. The bearing 44 is used to provide rotational support for the shaft disc 30.
[0058] The assembly process of the electronic device in this embodiment is as follows:
[0059] 1. Assemble the motor onto the motor bracket and fix it with screws;
[0060] 2. Assemble the shaft disc onto the motor output shaft and fix it with screws on the motor output shaft;
[0061] 3. After installing the elastic element into the slot of the locking pin, install the whole assembly into the guide slot of the motor bracket, and then seal the tail of the guide slot of the motor bracket.
[0062] 4. Assemble the bearing onto the motor bracket. The inner ring is fitted with the shaft disc, and the outer ring is fitted with the motor bracket. Then lock it to the motor bracket with screws.
[0063] 5. Assemble the screen bracket onto the shaft disc and fix it with screws.
[0064] The electronic device of this embodiment is locked by a pin shaft, which improves the virtual looseness caused by structural gaps at a fixed angle of the gimbal. At the same time, the structure is simple and can meet the requirements of space and cost.
[0065] As can be seen from the above technical solutions, this embodiment provides an electronic device with a screen. Through a simple pin locking scheme, the screen is locked by inserting a pin when the screen rotates to the landscape or portrait state.
[0066] The series of detailed descriptions listed above are only specific descriptions of the feasible implementation modes of the present invention, and are not intended to limit the protection scope of the present invention. Any equivalent implementation modes or changes made without departing from the technical spirit of the present invention, such as the combination, division or repetition of features, shall be included in the protection scope of the present invention.
Claims
1. An electronic device with a screen, characterized in that, Comprising: A screen bracket (10), the screen being fixed to the screen bracket (10), the screen bracket (10) having a central axis perpendicular to the screen, the central axis corresponding to the center point of the screen bracket and the center of the screen; A stepping motor (20), the stepping motor (20) driving the screen bracket (10) to rotate around the central axis via a shaft disc (30); A limiting mechanism (40), the limiting mechanism (40) having a degree of freedom of movement along the direction of the central axis to limit the screen to a preset position by abutting against the shaft disc (30).
2. The electronic device with a screen according to claim 1, wherein, The electronic device comprises: A housing (1), a cavity being formed inside the housing (1), the stepping motor (20) and the screen bracket (10) being installed in the cavity, and the screen being exposed outside the housing (1); A motor bracket (21), the motor bracket (21) supporting the stepping motor (20) in the cavity.
3. The electronic device with a screen according to claim 2, characterized in that, The limiting mechanism (40) comprises: A locking pin (41), the locking pin (41) being supported by an elastic element (42) on the motor bracket (21), and the locking pin (41) extending along the direction of the central axis; A groove (43), the groove (43) being formed on the side of the shaft disc (30) facing away from the screen, and the groove (43) receiving the front end of the locking pin (41).
4. The electronic device with a screen according to claim 3, characterized in that, The position where the front end of the locking pin (41) is received in the groove (43) corresponds to the free state or the compressed state of the elastic element (42).
5. The electronic device with a screen according to claim 3, characterized in that, Four of the grooves (43) are included, and the grooves (43) are arranged at equal angular intervals on the shaft disc (30).
6. The electronic device with a screen according to claim 5, wherein, The position of the groove (43) corresponds to the preset position of the screen, and the preset position is the position where one edge of the screen extends along the horizontal direction or the vertical direction.
7. The electronic device with a screen according to claim 3, characterized in that, Both sides of the groove (43) along the circumferential direction of the shaft disc (30) have inclined side walls, and the inclined side walls form a first included angle with the central axis.
8. The electronic device with a screen according to claim 7, characterized in that, The front end of the locking pin (41) has a chamfer that cooperates with the inclined side wall.
9. The electronic device with a screen according to claim 3, wherein The rear end of the locking pin (41) has a slot, one end of the elastic element (42) being fixed to the slot and the other end being fixed to the motor bracket (21).
10. The electronic device with a screen according to claim 2, characterized in that, The radial edge of the shaft disc (30) is rotatably supported by a bearing (44) on the motor bracket (21).