Hinge
By simplifying the hinge structure, combining the physical shaft and the virtual shaft functions, the rotating bracket directly connects the gear set, solving the problems of complex and high cost of the existing hinge structure, realizing the lightweight and cost reduction of the hinge, and promoting the mobile device Thin and thin.
Patent Information
- Application Number
- CN202421077875.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-05-17
AI Technical Summary
The existing hinge structure is complex and the number of components is large, which leads to high manufacturing and assembly costs, and difficult to reduce volume and weight, which affects the development of thinning and thinning of mobile devices.
By simplifying the integration of the functions of the solid shaft and the virtual shaft, the rotating bracket directly connects the gear set to reduce the number of components of the overall hinge, and through the design optimization of the gear set and torque mechanism, it reduces manufacturing and assembly costs, and reduces volume and weight.
Effectively reduce the manufacturing and assembly costs of hinges, reduce volume and weight, and promote the lightweight development of mobile devices.
Smart Images
Figure CN222229153U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a hinge, in particular to a hinge for a flexible screen of an electronic device. Background Art
[0002] In recent years, foldable mobile devices with flexible screens (such as mobile phones, tablet computers, laptop computers or e-readers, etc.) have appeared on the market in pursuit of a larger screen size when in use while having the advantages of being small in size and easy to carry. These devices usually have a hinge connecting two bodies to enable the two bodies to be relatively unfolded or folded.
[0003] Among them, the existing hinge generally includes a synchronization mechanism and a torque mechanism. No matter whether the synchronization mechanism and the torque mechanism are independent structures or integrated together, the synchronization mechanism needs to be combined with a guide plate with a sliding groove on the side of the rotating bracket connected to the screen, so that the protrusion of the swing plate combined with the physical shaft can be inserted into the sliding groove. Only when the screen is pivoted, the gear set combined with the physical shaft can be linked through the rotating bracket, the guide plate, the swing plate and the physical shaft, thereby applying force to the torque mechanism. Utility Model Content
[0004] However, since the hinges have a large number of components and a complex structure, the existing hinges have problems such as high manufacturing and assembly costs, and difficulty in reducing volume and weight.
[0005] In view of the above-mentioned defects of the prior art, the inventor felt that it was not perfect, so he exhausted his mind to carefully study and overcome it, and then developed a hinge that can simplify and merge the functions of the physical axis and the virtual axis, and directly link the gear set by the rotating bracket to greatly reduce the number of components of the overall hinge.
[0006] To achieve the above-mentioned and other purposes, the utility model provides a hinge, which includes: a fixed seat, having two arc guide rails, each arc guide rail defining a virtual axis; two rotating brackets, each rotating bracket having a first virtual axis structure and an actuator, the first virtual axis structure is pivotally connected to the corresponding arc guide rail, the actuator protrudes out of the side edge of the rotating bracket, and the actuator has a tooth portion, the axis center line of the tooth portion coincides with the corresponding virtual axis, and the axis center line of the tooth portion is located above the top surface of the rotating bracket; a gear set, located on one side of the fixed seat, and meshing with the tooth portions of the actuators of the two rotating brackets; and a torsion mechanism, having two physical shafts and a spring set, the gear set is located between the fixed seat and the spring set, and the two physical shafts respectively penetrate the spring set, the gear set and the fixed seat.
[0007] In the above-mentioned hinge, the fixed seat can have two arc guide blocks, and the two arc guide blocks and the two arc guide rails can be coaxially arranged with the two virtual axes respectively. Each rotating bracket can have a second virtual axis structure, and the fixed seat can be pivotally connected to the second virtual axis structure of the two rotating brackets by the two arc guide blocks.
[0008] In the above-mentioned hinge, the gear set can have a first bevel gear and two second bevel gears, the fixed seat can have an axial connection portion, the first bevel gear can be rotatably disposed on the axial connection portion, the two second bevel gears are respectively penetrated by the two physical shafts, the two second bevel gears are meshed with the tooth portions of the two rotating brackets, and the two second bevel gears are both meshed with the first bevel gear.
[0009] In the above-mentioned hinge, the gear set can have two driving gears and two driven gears, the two driving gears are respectively penetrated by the two solid shafts and are respectively meshed with the teeth of the two rotating brackets, the two driven gears are located between the two driving gears, the two driven gears are meshed with each other and are respectively meshed with the outer driving gears.
[0010] In the above-mentioned hinge, the side of the gear group facing away from the fixed seat may have at least one first cam portion, the torque mechanism may have a cam seat and a spring fixed seat, the spring group may be clamped between the cam seat and the spring fixed seat, the cam seat may have at least one second cam portion, and the second cam portion may abut against the first cam portion.
[0011] In the above hinge, the torque mechanism may have a clamping plate, the two rotating brackets may be located between the clamping plate and the gear set, and the two physical shafts may pass through the fixing seat and the corresponding rotating brackets and be combined with the clamping plate.
[0012] In the above hinge, the clamping plate may have a plurality of third cam portions facing the two rotating brackets, and the two rotating brackets may each have at least one fourth cam portion, so that the plurality of fourth cam portions of the two rotating brackets abut against the plurality of third cam portions of the clamping plate.
[0013] Thus, the hinge of the present invention can simplify and merge the functions of the physical axis and the virtual axis, and directly link the gear set by the rotating bracket to greatly reduce the number of components of the overall hinge. This can not only effectively reduce the manufacturing and assembly costs of the hinge, but also reduce the volume and weight of the hinge, which is very beneficial to the development trend of lightweight mobile devices. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a three-dimensional schematic diagram of the first embodiment of the utility model in an unfolded state.
[0015] Figure 2It is a perspective exploded schematic diagram of the first embodiment of the utility model.
[0016] Figure 3 This is a schematic exploded perspective view of the first embodiment of the utility model from another viewing angle.
[0017] Figure 4 It is a front view schematic diagram of the fixing base of the first embodiment of the utility model.
[0018] Figure 5 It is a three-dimensional schematic diagram of a rotating bracket according to the first embodiment of the utility model.
[0019] Figure 6 It is a top view schematic diagram of the first embodiment of the utility model.
[0020] Figure 7 For along Figure 6 Schematic diagram of the cross-sectional structure along the AA section line.
[0021] Figure 8 For along Figure 6 Schematic diagram of the cross-sectional structure along the BB section line.
[0022] Fig. 9 For along Figure 6 Schematic diagram of the cross-sectional structure along the CC section line.
[0023] Fig.10 It is a schematic diagram of the planar structure of the first embodiment of the utility model in a folded state.
[0024] Fig.11 It is a perspective exploded schematic diagram of the second embodiment of the utility model.
[0025] Fig.12 It is a partial exploded schematic diagram of the second embodiment of the utility model.
[0026] Fig.13 It is a top view schematic diagram of the second embodiment of the utility model.
[0027] Fig.14 For along Fig.13 Schematic diagram of the cross-sectional structure along the DD section line.
[0028] Fig.15 For along Fig.13 Schematic diagram of the cross-sectional structure along the EE section line.
[0029] Reference numerals
[0030] 1 Fixed seat
[0031] 11 Curved guide rail
[0032] 12 Arc guide block
[0033] 13 Shaft connection
[0034] 2 Swivel bracket
[0035] 21 First virtual axis structure
[0036] 22 Actuator
[0037] 221 teeth
[0038] 23 Top
[0039] 24 Second virtual axis structure
[0040] 25 Fourth cam portion
[0041] 3. 3' gear set
[0042] 31 First helical gear
[0043] 32 Second helical gear
[0044] 33 First cam section
[0045] 34 Driving gear
[0046] 35 Driven gear
[0047] 4 Torque mechanism
[0048] 41 Physical Axis
[0049] 42 Spring Set
[0050] 43 Cam seat
[0051] 431 Second cam section
[0052] 44 Spring fixing seat
[0053] 45 Clamping plate
[0054] 451 Third Cam Section
[0055] L1 virtual axis
[0056] L2 axis DETAILED DESCRIPTION
[0057] In order to fully understand the purpose, features and effects of the present invention, the present invention is described in detail through the following specific embodiments and the accompanying drawings. The description is as follows:
[0058] Please refer to Figure 1 and Figure 2, which is the first embodiment of the hinge of the utility model, the hinge includes a fixed base 1, two rotating brackets 2, a gear set 3 and a torque mechanism 4, the two rotating brackets 2 are pivotally connected to the fixed base 1, the gear set 3 is meshed with the two rotating brackets 2, and the torque mechanism 4 is connected to the gear set 3.
[0059] For details, please refer to Figures 2 to 8 , the fixed seat 1 has two arc-shaped guide rails 11, and the two arc-shaped guide rails 11 define a virtual axis L1 according to the center position of the arc. Each rotating bracket 2 has a first virtual axis structure 21, and the two rotating brackets 2 are respectively pivoted to the two arc-shaped guide rails 11 by their first virtual axis structures 21, so that the two rotating brackets 2 can be pivoted relative to the fixed seat 1 with the two virtual axes L1 as the center. Each rotating bracket 2 also has an actuator 22, and the actuator 22 is integrally connected and protrudes from the side edge of the rotating bracket 2; the actuator 22 has a tooth portion 221, and the axis line L2 (marked at Figure 7 , where the two-point chain line circle is the tooth top circle of the tooth portion 221) coincides with the corresponding virtual axis L1, and the axis L2 of the tooth portion 221 is located above the top surface 23 of the rotating bracket 2. The gear set 3 is located on one side of the fixed base 1 and meshes with the tooth portions 221 of the actuators 22 of the two rotating brackets 2. The torque mechanism 4 has two physical shafts 41 and a spring set 42. The gear set 3 is located between the fixed base 1 and the spring set 42. The two physical shafts 41 pass through the spring set 42, the gear set 3 and the fixed base 1 (such as Figure 8 shown).
[0060] When in use, the two rotating brackets 2 can be Figure 1 The expanded state shown pivots to Fig.10 and in the aforementioned pivoting process, the two rotating brackets 2 can be directly driven by their respective actuators 22 to drive the gear set 3 to rotate, and the gear set 3 applies force to the spring set 42 of the torque mechanism 4 to maintain moderate contact between the components without shaking, and through the gear set 3 that is simultaneously engaged with the two actuators 22, the two rotating brackets 2 can maintain bilateral simultaneous movement.
[0061] Accordingly, the hinge of the present embodiment can simplify and merge the functions of the physical axis and the virtual axis, and the two rotating brackets 2 can directly link the gear set 3, so there is no need to combine a guide plate with a slide groove on the side of the two rotating brackets 2, and there is no need to insert a swing plate with a protrusion into the two physical axes 41; compared with the existing hinges, the hinge of the present embodiment can greatly reduce the number of components of the overall hinge, which can not only effectively reduce the manufacturing and assembly costs of the hinge, but also reduce the volume and weight of the hinge, which is very beneficial to the development trend of lightweight mobile devices.
[0062] Please refer to Figure 4 , Figure 5 and Figure 3 In addition to the above embodiments, in one embodiment of the present invention, the fixed seat 1 may have two arc guide blocks 12, and the two arc guide blocks 12 and the two arc guide rails 11 may be spaced apart in the front-to-back direction and respectively coaxially arranged with the two virtual axes L1. Each rotating bracket 2 may have a second virtual axis structure 24, so that the fixed seat 1 may be pivotally connected to the second virtual axis structure 24 of the two rotating brackets 2 by the two arc guide blocks 12. In this way, the two rotating brackets 2 of this embodiment may be more stably pivoted relative to the fixed seat 1 with the two virtual axes L1 as the center. In other embodiments, the arc guide rails 11 and the arc guide blocks 12 of the fixed seat 1 may also be interchanged, and the first virtual axis structure 21 and the second virtual axis structure 24 of the two rotating brackets 2 may be pivoted relative to the corresponding arc guide rails 11 or arc guide blocks 12, so the present invention is not limited to the form disclosed in the drawings.
[0063] Please refer to Figure 2 , Figure 7 and Fig. 9 In addition to the above embodiments, in an embodiment of the present invention, the gear set 3 may have a first bevel gear 31 and two second bevel gears 32, the fixed seat 1 may have a shaft connection portion 13, the first bevel gear 31 is rotatably disposed on the shaft connection portion 13, and the two second bevel gears 32 are respectively penetrated by the two physical shafts 41; wherein the two second bevel gears 32 are meshed with the toothed portions 221 of the actuating members 22 of the two rotating brackets 2 (such as Figure 7 ), and the two second bevel gears 32 are meshed with the first bevel gear 31 (as shown Fig. 9 As shown in FIG. 1 , the gear set 3 of the present embodiment only uses three helical gears to achieve the aforementioned linkage action and further reduce the number of components of the overall hinge.
[0064] Please refer to Figure 2 and Figure 6In addition to the above embodiments, in one embodiment of the present invention, the gear set 3 has at least one first cam portion 33 on the side away from the fixing seat 1, the torque mechanism 4 has a cam seat 43 and a spring fixing seat 44, the spring set 42 is sandwiched between the cam seat 43 and the spring fixing seat 44, the cam seat 43 has at least one second cam portion 431, and the second cam portion 431 abuts against the first cam portion 33. Accordingly, when the gear set 3 rotates, the first cam portion 33 can push against the second cam portion 431, so that the cam seat 43 can move closer to the spring fixing seat 44 to compress the spring set 42. In this way, between the gear set 3 and the torque mechanism 4 of this embodiment, a simple structure can be used to transmit force to control the spring set 42 to be accurately compressed or elastically reset, which can not only improve the convenience of manufacturing and assembly, but also improve the effect of the torque mechanism 4 in stabilizing the unfolding or folding of the hinge.
[0065] For example but not limited to, in one embodiment of the present invention, the first cam portion 33 can be disposed at the ends of the two second bevel gears 32. In this way, the gear set 3 of this embodiment can more smoothly transmit force to the torque mechanism 4, and the gear set 3 and the cam seat 43 can have a structure that is easy to manufacture and assemble.
[0066] Please refer to Figures 11 to 14 , which is the second embodiment of the hinge of the utility model. The hinge of this embodiment is substantially the same as the hinge of the first embodiment, and the main difference is that the torque mechanism 4 of the hinge of this embodiment can further increase the compression amount of the spring group 42 under a single stroke; and this embodiment provides another type of gear group 3'.
[0067] In detail, the torque mechanism 4 of this embodiment may further include a clamping plate 45, the two rotating brackets 2 may be located between the clamping plate 45 and the gear set 3', the two physical shafts 41 pass through the fixed base 1 and the corresponding rotating brackets 2, and are combined with the clamping plate 45 (such as Fig.14 As shown). The clamping plate 45 may have a plurality of third cam portions 451 facing the two rotating brackets 2, and the two rotating brackets 2 may each have at least one fourth cam portion 25, so that the plurality of fourth cam portions 25 of the two rotating brackets 2 abut against the plurality of third cam portions 451 of the clamping plate 45.
[0068] Accordingly, when the two rotating brackets 2 pivot, in addition to the first cam portion 33 pushing against the second cam portion 431 to make the cam seat 43 approach the spring fixing seat 44 to compress the spring group 42, the fourth cam portion 25 can also push against the corresponding third cam portion 451 to make the two rotating brackets 2, the fixing seat 1 and the gear group 3' synchronously translate in a direction away from the clamping plate 45, thereby increasing the compression amount of the spring group 42 in a single stroke, thereby increasing the torque generated by the torque mechanism 4, and increasing the contact area between the first cam portion 33 and the second cam portion 431, and between the third cam portion 451 and the fourth cam portion 25 to reduce the torque decay speed.
[0069] On the other hand, please refer to Fig.11 , Fig.13 and Fig.15 The gear set 3' of this embodiment may have two driving gears 34 and two driven gears 35. The two driving gears 34 are respectively penetrated by the two physical shafts 41, and are respectively meshed with the toothed portions 221 of the actuators 22 of the two rotating brackets 2. The two driven gears 35 may be located between the two driving gears 34, and the two driven gears 35 are meshed with each other and are respectively meshed with the outer driving gears 34. The utility model does not limit the types of the two driving gears 34 and the two driven gears 35, and they may be parallel axis gears such as spur gears or helical gears.
[0070] Thus, the gear set 3' of the present embodiment can also be driven by the actuators 22 of the two rotating brackets 2 to generate rotation when the two rotating brackets 2 pivot, and the gear set 3' can apply force to the spring set 42 of the torque mechanism 4. In addition, the gear set 3' of the present embodiment can have a larger number of gears, so the spring set 42 can be provided with a corresponding number of springs, and the first cam portion 33 can be provided at the end of each gear, and the cam seat 43 can be provided with a corresponding number of second cam portions 431, which helps to increase the torque that the torque mechanism 4 of the present embodiment can generate.
[0071] It is worth mentioning that the gear set 3 ′ of this embodiment can be replaced with the gear set 3 of the first embodiment, that is, whether the hinge of the present invention is provided with the clamping plate 45 or not, the gear sets 3 and 3 ′ of the two embodiments can be applied.
[0072] The present invention has been disclosed in the above with a preferred embodiment, but those skilled in the art should understand that the embodiment is only used to describe the present invention and should not be interpreted as limiting the scope of the present invention. It should be noted that all changes and substitutions equivalent to the embodiment should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be based on the scope of the patent application.
Claims
1. A hinge, characterized in that: Include: A fixed seat having two arc-shaped guide rails, each arc-shaped guide rail defining a virtual axis; Two rotating brackets, each rotating bracket has a first virtual axis structure and an actuating member, the first virtual axis structure is pivotally connected to the corresponding arc-shaped guide rail, the actuating member protrudes out of the side edge of the rotating bracket, and the actuating member has a tooth portion, the axis center line of the tooth portion coincides with the corresponding virtual axis line, and the axis center line of the tooth portion is located above the top surface of the rotating bracket; a gear set, located on one side of the fixed base and meshing with the teeth of the actuating members of the two rotating brackets; and A torque mechanism has two physical shafts and a spring group. The gear group is located between the fixing seat and the spring group. The two physical shafts penetrate the spring group, the gear group and the fixing seat respectively.
2. The hinge according to claim 1, characterized in that: The fixed seat has two arc guide blocks, and the two arc guide blocks are coaxially arranged with the two arc guide rails respectively with the two virtual axes. Each rotating bracket has a second virtual axis structure, and the fixed seat is pivotally connected to the second virtual axis structures of the two rotating brackets by the two arc guide blocks.
3. The hinge according to claim 1, characterized in that: The gear set has a first bevel gear and two second bevel gears. The fixed seat has an axial connection portion. The first bevel gear is rotatably disposed on the axial connection portion. The two second bevel gears are respectively penetrated by the two physical shafts. The two second bevel gears are meshed with the tooth portions of the two rotating brackets, and the two second bevel gears are both meshed with the first bevel gear.
4. The hinge according to claim 1, characterized in that: The gear set has two driving gears and two driven gears. The two driving gears are respectively penetrated by the two physical shafts and meshed with the teeth of the two rotating brackets respectively. The two driven gears are located between the two driving gears. The two driven gears mesh with each other and meshed with the outer driving gears respectively.
5. The hinge according to claim 1, characterized in that: The gear set has at least one first cam portion on a side away from the fixing seat. The torque mechanism has a cam seat and a spring fixing seat. The spring set is clamped between the cam seat and the spring fixing seat. The cam seat has at least one second cam portion, which abuts against the first cam portion.
6. The hinge according to claim 1, characterized in that: The torque mechanism has a clamping plate. The two rotating brackets are located between the clamping plate and the gear set. The two physical shafts penetrate the fixing seat and the corresponding rotating brackets and are combined with the clamping plate.
7. The hinge according to claim 6, characterized in that The clamping plate has a plurality of third cam portions facing the two rotating brackets, and the two rotating brackets each have at least one fourth cam portion, so that the fourth cam portions of the two rotating brackets abut against the third cam portions of the clamping plate.