Folding hinge for folding screen electronic devices
By designing the rotation centers of the transmission gear set and arc-shaped limit wing set in the folding screen electronic device, the problem of decreasing screen life and maintenance complexity during the folding process is solved, and the equipment is thinner and convenient. Repair improves user experience.
Patent Information
- Application Number
- CN202010356631.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-04-29
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2040-04-29
AI Technical Summary
Existing folding screen electronic devices are prone to squeezing and stretching the screen during folding, resulting in a decrease in screen life, complex maintenance and inconvenient portability, and poor user experience.
Design a folding shaft to achieve the establishment and synchronous rotation of the rotation center through the transmission gear set and the arc-shaped limit fin set, allowing the folding screen electronics to be thinner, and at the same time adopt a detachable fixed connection and arc-shaped cover design, which is convenient for maintenance. and install to avoid disassembling the screen.
It realizes the slimming of folding screen electronic devices, improves user experience, simplifies the repair process, extends the screen life, and reduces the repair complexity.
Smart Images
Figure CN111396447B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a folding hinge for a folding screen electronic device. Background Art
[0002] With the continuous advancement and expansion of technology in the field of mobile terminals, and the advent of the 5G network era, more people have eliminated computers and shifted their focus to mobile terminals (mobile phones, tablets), watching videos, browsing Douyin, answering calls, shopping online, etc., especially modern people’s lives are inseparable from mobile phones.
[0003] Nowadays, with the continuous updating of various chat, video and other software, people feel that conventional touch screen mobile phones or tablets are no longer enough, and they always idealize: how great it would be if this screen was bigger! How great it would be if this picture was stronger! Indeed, with the rapid development of software technology, the use of mobile phones or tablets has troubled everyone with a series of problems such as:
[0004] 1) When playing games or watching videos, the screen feels too small, which makes people feel less immersed in the game. The displayed image is not strong enough, and the user experience is not perfect.
[0005] 2) People want to use portable computers to replace mobile phones, but they are too big and inconvenient to carry;
[0006] 3) I want to change to a combination screen phone, but the thickness and space are relatively large, and the screen experience is not good. It is also inconvenient to carry and feels bad.
[0007] 4) The current flexible screen mobile phone is quite troublesome to repair. Replacing accessories requires disassembling the screen, which causes the flexible screen to be scrapped;
[0008] 5) Existing foldable screen mobile phones or tablets will cause squeezing and stretching of the screen during the folding process. If the neutral layer is not clearly defined, the life of the screen will be reduced. Summary of the invention
[0009] The purpose of the present invention is to provide a folding hinge for a folding screen electronic device. The folding hinge can only rotate according to a set rotation center through a structural design that limits the rotation, thereby meeting the slimming requirements of the folding screen electronic device. At the same time, the folding hinge is easy to maintain in the later stage and can be repaired without removing the screen.
[0010] The technical solution to achieve the purpose of the present invention is: the present invention has a base plate; a plurality of installation cavities are provided on the base plate along its extension direction; a rotating member is provided in each installation cavity; the rotating member includes a support frame, a first rotating plate, a second rotating plate and a transmission assembly; the first rotating plate and the second rotating plate are both rotatably connected to the support frame; the transmission assembly includes a retaining frame, on which a transmission gear set is rotatably provided; the first rotating plate and the second rotating plate are both provided with an inner gear ring; the support frame and the installation cavity form a detachable fixed connection; the retaining frame is fixedly connected to the support frame, or the retaining frame is pressed into the installation cavity through the support frame; the inner gear ring on the first rotating plate is matched with the gear on one side of the transmission gear set, and the gear on the other side of the transmission gear set is matched with the inner gear ring on the second rotating plate, and the first rotating plate and the second rotating plate rotate towards or away from each other under the transmission of the transmission gear set.
[0011] The first rotating plate has a first lug and a first mounting groove at both ends of the arcuate surface facing the bottom plate; the second rotating plate has a second lug and a second mounting groove at both ends of the arcuate surface facing the bottom plate; cards with bayonet slots are clamped in the first mounting groove and the second mounting groove; the card in the first mounting groove and the second lug are engaged with each other as the first rotating plate and the second rotating plate rotate; the card in the second mounting groove and the first lug are engaged with each other as the first rotating plate and the second rotating plate rotate.
[0012] The support frame includes a press-fitting strip, on which is provided at least one group of arc-shaped limit wing groups; the arc-shaped limit wing groups include arc-shaped limit wings symmetrically arranged on both sides of the press-fitting strip; the first rotating plate and the second rotating plate are both provided with arc-shaped through grooves for the arc-shaped limit wings to pass through and form a rotational fit; the first rotating plate and the second rotating plate are rotatably connected to the support frame through the cooperation of the arc-shaped through grooves and the arc-shaped limit wings.
[0013] The retaining frame is provided with a press-fitting groove; the press-fitting strip of the support frame is embedded in the press-fitting groove, and the retaining frame is press-fitted in the installation cavity.
[0014] The support frame includes a press strip; both ends of the press strip are provided with limit fins; both ends of the installation cavity are provided with slots for the limit fins to be inserted; the press strip cooperates with the bottom plate through the limit fins and the slots to form radial positioning along the rotation axis of the first rotating plate.
[0015] As an optimized design, the first rotating plate and the second rotating plate are both provided with arc-shaped recesses and mounting pins on the arc-shaped surfaces facing the bottom plate; there are also a first arc-shaped cover plate and a second arc-shaped cover plate with an inner gear ring; positioning mounting holes are provided on the first arc-shaped cover plate and the second arc-shaped cover plate; the first arc-shaped cover plate cooperates with the mounting pin on the first rotating plate through its positioning mounting hole and is covered on the arc-shaped recess of the first rotating plate, and the first arc-shaped cover plate and the arc-shaped recess on the first rotating plate form an arc-shaped through groove on the first rotating plate; the second arc-shaped cover plate cooperates with the mounting pin on the second rotating plate through its positioning mounting hole and is covered on the arc-shaped recess of the second rotating plate, and the second arc-shaped cover plate and the arc-shaped recess on the second rotating plate form an arc-shaped through groove on the second rotating plate; the gear on one side of the transmission gear group extends into the first arc-shaped cover plate and is transmission-coordinated with the inner gear ring thereon; the gear on the other side of the transmission gear group extends into the second arc-shaped cover plate and is transmission-coordinated with the inner gear ring thereon.
[0016] The transmission gear set comprises six gears which are mutually transmission-coordinated.
[0017] The end surfaces of the first rotating plate and the second rotating plate away from the bottom plate are provided with connection grooves that can be fixedly connected to the middle frame of the electronic device equipped with the flexible screen.
[0018] The present invention has positive effects: (1) The present invention utilizes a transmission gear set for transmission coordination not only to realize synchronous rotation of the first rotating plate and the second rotating plate, but also to coordinate the first rotating plate and the second rotating plate to rotate on the rotation center required by the design; the rotation center is established to enable folding screen electronic devices (folding screen mobile phones or tablet computers, etc.) to be thinner.
[0019] (2) The present invention can lock the first rotating plate and the second rotating plate when they are in the "unfolded" state through the card, so that the user does not need to manually control the stop state during use, thereby improving the user experience.
[0020] (3) The present invention can further ensure that the first rotating plate and the second rotating plate rotate on the rotation center required by the design through the coordination of the arc-shaped through groove and the arc-shaped limiting wing.
[0021] (4) In the present invention, the support frame presses the transmission assembly into the installation cavity by press-fitting, which is convenient for installation.
[0022] (5) The present invention realizes a detachable fixed connection of the press-fit strip by cooperating between the limit clamping wing and the clamping slot, which can ensure the fixation during use and provide convenience for later maintenance and disassembly. Because the limit clamping wing and the clamping slot cooperate to position the first rotating plate in the radial direction along the rotation axis, but not in the axial direction along the rotation axis of the first rotating plate, the rotating part can be separated from the bottom plate without removing the screen during later maintenance and disassembly.
[0023] (6) The design of the first arc-shaped cover plate and the second arc-shaped cover plate in the present invention is also to further improve the convenience of later maintenance; at the same time, it is also to reduce the installation space.
[0024] (7) During the folding process of the present invention, the neutral layer of the flexible screen is defined in the liquid crystal layer, so that the liquid crystal layer is only subjected to the squeezing force, which greatly improves the life of the display screen. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below according to specific embodiments and in conjunction with the accompanying drawings, wherein
[0026] Figure 1 It is a structural schematic diagram of the present invention;
[0027] Figure 2 It is a schematic diagram of the back structure of the rotating member in the present invention;
[0028] Figure 3 This is a schematic diagram of the assembly structure of the support frame and the base plate in this method;
[0029] Figure 4 It is a structural schematic diagram of the bottom plate of the present invention;
[0030] Figure 5 It is a structural schematic diagram of the support frame in the present invention;
[0031] Figure 6 It is a structural schematic diagram of the first rotating plate in the present invention;
[0032] Figure 7 is a schematic structural diagram of the first arc-shaped cover plate in the present invention;
[0033] Figure 8 It is a structural schematic diagram of the second rotating plate in the present invention;
[0034] Fig. 9 is a schematic structural diagram of the second arc-shaped cover plate in the present invention;
[0035] Fig.10 for Figure 2 The enlarged schematic diagram of point A in the middle;
[0036] Fig.11 It is a structural schematic diagram of the card in the present invention;
[0037] Fig.12 It is a structural schematic diagram of the transmission assembly in the present invention;
[0038] Fig.13 This is a schematic diagram of the present invention being connected to a mobile phone middle frame and a flexible screen. DETAILED DESCRIPTION
[0039] See Figures 1 to 13 The present invention comprises a bottom plate 1; three mounting cavities 11 are provided on the bottom plate 1 along its extension direction; a rotating member 2 is provided in each mounting cavity 11; the rotating member 2 comprises a support frame 21, a first rotating plate 22, a second rotating plate 23 and a transmission assembly; the first rotating plate 22 and the second rotating plate 23 are both rotatably connected to the support frame 21; the transmission assembly comprises a retaining frame 24, on which a transmission gear set 25 is rotatably provided; the first rotating plate 22 and the second rotating plate 23 are both provided with an inner gear ring 2-1; the support frame 21 is detachably fixedly connected to the mounting cavity 11; the retaining frame 24 is fixedly connected to the support frame 21, or the retaining frame 24 is press-fitted into the mounting cavity 11 through the support frame 21; the inner gear ring 2-1 on the first rotating plate 21 is matched with a gear on one side of the transmission gear set 25, and a gear on the other side of the transmission gear set 25 is matched with the inner gear ring 2-1 on the second rotating plate 23, and the first rotating plate 22 and the second rotating plate 23 rotate towards or away from each other under the transmission of the transmission gear set 25.
[0040] The first rotating plate 22 has a first lug 221 and a first mounting groove 222 at both ends of the arc surface facing the bottom plate 1; the second rotating plate 23 has a second lug 231 and a second mounting groove 232 at both ends of the arc surface facing the bottom plate 1; the first mounting groove 222 and the second mounting groove 232 are both provided with a card 3 with a bayonet; the card 3 in the first mounting groove 222 and the second lug 231 can be engaged from the bayonet of the corresponding card 3 as the first rotating plate 22 and the second rotating plate 23 rotate, thereby forming a lock; the card 3 in the second mounting groove 232 and the first lug 221 can be engaged from the bayonet of the corresponding card 3 as the first rotating plate 22 and the second rotating plate 23 rotate, thereby forming a lock. The locking of the "expanded" state can be achieved, so that the user does not have to manually control the stay state when using it.
[0041] The support frame 21 includes a press-fitting strip 211, on which two groups of arc-shaped limit wing groups are provided; the arc-shaped limit wing groups include arc-shaped limit wings 212 symmetrically arranged on both sides of the press-fitting strip 211; the first rotating plate 22 and the second rotating plate 23 are both provided with arc-shaped through grooves 26 for the arc-shaped limit wings 212 to pass through and form a rotational fit; the first rotating plate 22 and the second rotating plate 23 are rotationally connected to the support frame 21 through the cooperation of the arc-shaped through grooves 26 and the arc-shaped limit wings 212, thereby forming the above-mentioned detachable fixed connection.
[0042] The retaining frame 24 is provided with a press-fitting groove 241 ; the press-fitting strip 211 of the support frame 21 is embedded in the press-fitting groove 241 , and the retaining frame 24 is press-fitted into the installation cavity 11 .
[0043] The support frame 21 includes a press-fit strip 211; both ends of the press-fit strip 211 are provided with limit clamping wings 211-1; both ends of the installation cavity 11 are provided with a clamping slot 111 for the limit clamping wing 211-1 to be inserted; the clamping slot 111 is T-shaped; the press-fit strip 211 cooperates with the clamping slot 111 through the limit clamping wing 211-1 to form a radial positioning with the bottom plate 1 along the rotation axis of the first rotating plate 22. When maintenance and disassembly are required later, there is no need to disassemble the screen, and the entire disassembly can be completed by moving along the axial direction of the rotation axis of the first rotating plate 22 so that the limit clamping wing 211-1 is separated from the clamping slot 111.
[0044] The first rotating plate 22 and the second rotating plate 23 are both provided with an arc-shaped depression and a mounting pin 27 on the arc-shaped surface facing the bottom plate 1; they also have a first arc-shaped cover plate 28 and a second arc-shaped cover plate 29 with an inner gear ring 2-1; the first arc-shaped cover plate 28 and the second arc-shaped cover plate 29 are provided with positioning and mounting holes; the first arc-shaped cover plate 28 cooperates with the mounting pin 27 on the first rotating plate 22 through its positioning and mounting hole and is covered on the arc-shaped depression of the first rotating plate 22, and the first arc-shaped cover plate 28 and the arc-shaped depression on the first rotating plate 22 form a first rotating plate 22 on the arc-shaped depression. An arc-shaped through groove 26; the second arc-shaped cover plate 29 is covered on the arc-shaped recess of the second rotating plate 23 through its positioning and mounting hole in cooperation with the mounting pin 27 on the second rotating plate 23, and the second arc-shaped cover plate 29 and the arc-shaped recess on the second rotating plate 23 form an arc-shaped through groove 26 on the second rotating plate 23; one side gear of the transmission gear set 25 extends into the first arc-shaped cover plate 28 and is in transmission cooperation with the inner gear ring 2-1 thereon; the other side gear of the transmission gear set 25 extends into the second arc-shaped cover plate 29 and is in transmission cooperation with the inner gear ring 2-1 thereon.
[0045] The transmission gear set 25 includes six gears that cooperate with each other.
[0046] The first rotating plate 22 and the second rotating plate 23 are provided with connection grooves on the end surfaces away from the bottom plate 1, which can be fixedly connected to the mobile phone middle frame 4 equipped with the flexible screen 5. Of course, the present invention can also be used for a tablet computer with a flexible folding screen, and the connection method is similar to the above.
[0047] Through the above design, the thickness of the entire machine including the screen after folding can be less than 10mm, which is thinner.
[0048] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A folding hinge for a folding screen electronic device; comprising a bottom plate (1); characterized in that: The bottom plate (1) is provided with a plurality of installation cavities (11) along its extension direction; each installation cavity (11) is provided with a rotating member (2); the rotating member (2) comprises a support frame (21), a first rotating plate (22), a second rotating plate (23) and a transmission assembly; the first rotating plate (22) and the second rotating plate (23) are both rotatably connected to the support frame (21); the transmission assembly comprises a retaining frame (24), on which a transmission gear set (25) is rotatably provided; the first rotating plate (22) and the second rotating plate (23) are both provided with an inner gear ring (2-1); the support frame (21) is provided with a plurality of installation cavities (11) along its extension direction; each installation cavity (11) is provided with a rotating member (2); the rotating member (2) comprises a support frame (21), a first rotating plate (22), a second rotating plate (23) and a transmission assembly; the first rotating plate (22) and the second rotating plate (23) are both provided with an inner gear ring (2-1); the support frame (21) is provided with a plurality of installation cavities (11) along its extension direction; each installation cavity (11) is provided with a rotating member (2); the rotating member (2) comprises a support frame (21), a first rotating plate (22), a second rotating plate (23) and a transmission assembly; the first rotating plate (22) and the second rotating plate (23) are provided with an inner gear ring (2-1); the support frame (21) is provided with a plurality of installation cavities (11) and a plurality of installation cavities (11) The support frame (21) is detachably fixedly connected to the mounting cavity (11); the retaining frame (24) is fixedly connected to the support frame (21), or the retaining frame (24) is press-fitted into the mounting cavity (11) through the support frame (21); the inner gear ring (2-1) on the first rotating plate (22) is in transmission cooperation with a gear on one side of the transmission gear set (25), and the gear on the other side of the transmission gear set (25) is in transmission cooperation with the inner gear ring (2-1) on the second rotating plate (23), and the first rotating plate (22) and the second rotating plate (23) are rotated towards or away from each other under the transmission of the transmission gear set (25); The first rotating plate (22) has a first lug (221) and a first mounting groove (222) at two ends of the arcuate surface facing the bottom plate (1); the second rotating plate (23) has a second lug (231) and a second mounting groove (232) at two ends of the arcuate surface facing the bottom plate (1); a card (3) with a bayonet is mounted in the first mounting groove (222) and the second mounting groove (232); the card (3) in the first mounting groove (222) and the second lug (231) are engaged with each other as the first rotating plate (22) and the second rotating plate (23) rotate; the card (3) in the second mounting groove (232) and the first lug (221) are engaged with each other as the first rotating plate (22) and the second rotating plate (23) rotate; The support frame (21) comprises a press-fitting strip (211); both ends of the press-fitting strip (211) are provided with limiting clamping wings (211-1); both ends of the installation cavity (11) are provided with clamping grooves (111) into which the limiting clamping wings (211-1) can be inserted; the press-fitting strip (211) cooperates with the bottom plate (1) through the limiting clamping wings (211-1) and the clamping grooves (111) to form radial positioning only along the rotation axis of the first rotating plate (22).
2. The folding hinge for a folding screen electronic device according to claim 1, characterized in that: The support frame (21) comprises a press-fitting strip (211), on which at least one set of arc-shaped limiting wing groups is arranged; the arc-shaped limiting wing groups comprise arc-shaped limiting wings (212) symmetrically arranged on both sides of the press-fitting strip (211); the first rotating plate (22) and the second rotating plate (23) are both provided with arc-shaped through grooves (26) through which the arc-shaped limiting wings (212) can pass and form a rotational fit; the first rotating plate (22) and the second rotating plate (23) are rotationally connected to the support frame (21) through the cooperation of the arc-shaped through grooves (26) and the arc-shaped limiting wings (212).
3. The folding hinge for a folding screen electronic device according to claim 2, characterized in that: The retaining frame (24) is provided with a press-fitting groove (241); the press-fitting strip (211) of the support frame (21) is embedded in the press-fitting groove (241), and the retaining frame (24) is press-fitted into the installation cavity (11).
4. The folding hinge for a folding screen electronic device according to claim 2, characterized in that: The first rotating plate (22) and the second rotating plate (23) are provided with arcuate recesses and mounting pins (27) on their arcuate surfaces facing the bottom plate (1); they also have a first arcuate cover plate (28) and a second arcuate cover plate (29) with an inner gear ring (2-1); the first arcuate cover plate (28) and the second arcuate cover plate (29) are provided with positioning mounting holes; the first arcuate cover plate (28) cooperates with the mounting pins (27) on the first rotating plate (22) through its positioning mounting holes and covers the arcuate recesses of the first rotating plate (22); the first arcuate cover plate (28) and the arcuate recesses on the first rotating plate (22) form a first rotating plate (22) on the first rotating plate (22) an arc-shaped through groove (26); the second arc-shaped cover plate (29) is covered on the arc-shaped recess of the second rotating plate (23) through its positioning installation hole and in cooperation with the installation pin (27) on the second rotating plate (23); the second arc-shaped cover plate (29) and the arc-shaped recess on the second rotating plate (23) form an arc-shaped through groove (26) on the second rotating plate (23); a gear on one side of the transmission gear set (25) extends into the first arc-shaped cover plate (28) and is in driving cooperation with the inner gear ring (2-1) thereon; and a gear on the other side of the transmission gear set (25) extends into the second arc-shaped cover plate (29) and is in driving cooperation with the inner gear ring (2-1) thereon.
5. The folding hinge for a folding screen electronic device according to claim 1, characterized in that: The transmission gear set (25) comprises six gears that cooperate with each other in transmission.
6. The folding hinge for a folding screen electronic device according to claim 1, characterized in that: The end surfaces of the first rotating plate (22) and the second rotating plate (23) away from the bottom plate (1) are provided with connection grooves which can be fixedly connected to the middle frame of an electronic device equipped with a flexible screen.