Automatic synchronization hinge apparatus and electronic device

Abstract

An automatic synchronization hinge apparatus and an electronic device, relating to the technical field of electronic devices. The automatic synchronization hinge apparatus comprises: a base; a first driving assembly and a second driving assembly, the first driving assembly and the second driving assembly being fixed to the base side by side; a first gear driving assembly and a second gear driving assembly, the first gear driving assembly and the second gear driving assembly respectively being in driven connection with the first driving assembly and the second driving assembly, and the first gear driving assembly and the second gear driving assembly being coupled to each other to implement synchronous driving; and a first hinge assembly, the first hinge assembly being mounted on the base and rotatably being connected to the base, and the first gear driving assembly and the second gear driving assembly both being in driving connection with the first hinge assembly and used for driving the first hinge assembly to implement automatic synchronous folding or unfolding. The automatic synchronous hinge apparatus can implement synchronous opening and closing from both sides, thereby meeting user experience for intellectualization and sense of technology.

Description

Automatic synchronous hinge device and electronic device TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic devices, and in particular to an automatic synchronous hinge device and an electronic device. BACKGROUND

[0002] With the advent of the mobile Internet era, the number of smart mobile devices is rising. Among the many mobile devices, foldable electronic devices, such as foldable phones, foldable tablets, and notebook computers, have advantages such as portability and large display screens, and are favored by consumers. Foldable electronic devices achieve foldable functions through hinges. Among them, foldable electronic devices usually have multiple use states, such as a folded state, an unfolded state, and a hovering state; in order to enable the device to be maintained in different folding states more stably, a certain rotational resistance and locking force, such as frictional resistance, mechanical locking force, and magnetic attraction locking force, are usually artificially added inside the hinge. TECHNICAL PROBLEM

[0003] In related technologies, an electronic device generally includes a first body, a second body, and an opening and closing structure for connecting the first body and the second body. By introducing a motor into the hinge, automatic opening and closing of the hinge is achieved through motor driving. By adjusting the opening and closing of the first body and the second body, the opening and closing experience of the foldable electronic device can be improved.

[0004] However, the rotational displacement of the first body and the second body of the above-mentioned electronic device is large, and at the same time, the manual opening and closing structure without power input requires the user to manually apply force to make the hinge structure complete the opening and closing action, making the manual flipping more laborious; especially at the moment of opening from the folded state or folding from the unfolded state, a large locking force needs to be overcome, which is inconvenient for the user and the experience effect of the electronic device is poor.

[0005] Therefore, it is necessary to provide a new automatic synchronous hinge device to solve the above technical problems. TECHNICAL SOLUTION

[0006] The purpose of the present application is to provide an automatic synchronous hinge device with double output shafts coupled through a gear set, enabling synchronous opening and closing on both sides, and meeting the user experience of smartness and technologicality.

[0007] In order to achieve the above-mentioned purpose, in a first aspect, an embodiment of the present application provides an automatic synchronous hinge device, comprising:

[0008] a base;

[0009] a first driving assembly and a second driving assembly, the first driving assembly and the second driving assembly being fixed side by side to the base;

[0010] a first gear transmission assembly and a second gear transmission assembly, the first gear transmission assembly and the second gear transmission assembly are respectively in transmission connection with the first driving assembly and the second driving assembly, the first gear transmission assembly and the second gear transmission assembly are coupled with each other to form synchronous transmission; and

[0011] a first hinge assembly, the first hinge assembly is installed on the base, the first gear transmission assembly and the second gear transmission assembly are respectively in transmission connection with the first hinge assembly, and the first hinge assembly is driven to realize automatic synchronous folding or unfolding;

[0012] the first hinge assembly comprises:

[0013] a first sliding block and a second sliding block, the first sliding block and the second sliding block are oppositely arranged, and one end of the first sliding block and one end of the second sliding block are respectively in transmission connection with the first gear transmission assembly and the second gear transmission assembly;

[0014] a first fixed block, the first fixed block is fixed on the base and located on a side of the first sliding block and the second sliding block away from the first driving assembly and the second driving assembly;

[0015] a first swing arm and a second swing arm, the first swing arm and the second swing arm are arranged side by side, and one end of the first swing arm and one end of the second swing arm, which are close to each other, are respectively in rotational connection with the first fixed block; and

[0016] a first connecting piece and a second connecting piece, the first connecting piece and the second connecting piece are located on opposite sides of the first fixed block, the other end of the first sliding block is in sliding connection with the first connecting piece, one end of the first swing arm away from the first fixed block is in rotational connection with the first connecting piece, the other end of the second sliding block is in sliding connection with the second connecting piece, and one end of the second swing arm away from the first fixed block is in rotational connection with the second connecting piece.

[0017] Preferably, the first driving assembly comprises a first motor fixed on the base and a first speed reducer fixed on the base and in transmission connection with the first motor, and an output end of the first speed reducer is in transmission connection with the first gear transmission assembly;

[0018] the second driving assembly comprises a second motor fixed on the base and a second speed reducer fixed on the base and in transmission connection with the second motor, and an output end of the second speed reducer is in transmission connection with the second gear transmission assembly.

[0019] Preferably, the automatic synchronous hinge device further comprises a support fixed to the base, and the first reduction gearbox and the second reduction gearbox are respectively fixed to the support.

[0020] Preferably, the first gear transmission assembly comprises a first gear, a second gear meshing with the first gear, a third gear coaxially driven with the second gear, a fourth gear meshing with the third gear, and a first output shaft fixed to an end of the fourth gear away from the first motor, and the first sliding block sleeve is fixed to the first output shaft, and an end of the first output shaft is rotationally connected with the first fixed block.

[0021] The second gear transmission assembly comprises a fifth gear, a sixth gear meshing with the fifth gear, a seventh gear coaxially driven with the sixth gear, an eighth gear meshing with the seventh gear, and a second output shaft fixed to an end of the eighth gear away from the first motor, and the second sliding block sleeve is fixed to the second output shaft, and an end of the second output shaft is rotationally connected with the first fixed block; and the second gear is coupled with the sixth gear.

[0022] Preferably, the diameter of the first gear is equal to the diameter of the third gear, and the diameter of the second gear is equal to the diameter of the fourth gear; and the diameter of the second gear is greater than the diameter of the first gear.

[0023] The diameter of the first gear is equal to the diameter of the fifth gear, the diameter of the second gear is equal to the diameter of the sixth gear, the diameter of the third gear is equal to the diameter of the seventh gear, and the diameter of the fourth gear is equal to the diameter of the eighth gear.

[0024] Preferably, the automatic synchronous hinge device further comprises a fixed sheet fixed to the base, and the fixed sheet is respectively arranged between the first gear and the third gear and between the fifth gear and the seventh gear, and the first gear to the eighth gear are respectively rotationally connected with the fixed sheet.

[0025] Preferably, the automatic synchronous hinge device further comprises a fixed member provided with an arc surface, the fixed member is fixed to the base, the fixed sheet is fixedly arranged in the fixed member, and the third gear, the fourth gear, the seventh gear and the eighth gear are respectively rotationally arranged in the arc surface.

[0026] Preferably, the first reduction gearbox and the second reduction gearbox are both 3-stage planetary reduction gearboxes.

[0027] Preferably, the first connecting member comprises a first connecting body, a first T-shaped slot and a first arc-shaped slot, the first T-shaped slot and the first arc-shaped slot are formed through the first connecting body from a side close to the first fixed block to a side away from the first fixed block, the other end of the first sliding block is arranged in the first T-shaped slot and forms a sliding connection, and the other end of the first swing arm is arranged in the first arc-shaped slot and forms a rotary connection.

[0028] The second connecting member comprises a second connecting body, a second T-shaped slot and a second arc-shaped slot, the second T-shaped slot and the second arc-shaped slot are formed through the second connecting body from a side close to the first fixed block to a side away from the first fixed block, the other end of the second sliding block is arranged in the second T-shaped slot and forms a sliding connection, and the other end of the second swing arm is arranged in the second arc-shaped slot and forms a rotary connection.

[0029] Preferably, the automatic synchronous hinge device further comprises a second hinge assembly fixed to the other end of the base, the second hinge assembly is arranged opposite to the first hinge assembly, and the first hinge assembly and the second hinge assembly are consistent in structure.

[0030] Preferably, the automatic synchronous hinge device further comprises a conductive member, the conductive member is fixed to the base and located between the first driving assembly and the second driving assembly, one end of the conductive member forms an electrical connection with the first driving assembly and the second driving assembly respectively, and the other end of the conductive member is used for connecting an external power supply.

[0031] In a second aspect, an embodiment of the present application provides an electronic device, comprising a first body, a second body, a control switch, a screen, a driving module and an automatic synchronous hinge device as described above, the control switch controls the driving module to work, the first body and the second body are located on two sides of the base, the first body is fixed to a side of the first connecting member away from the first sliding block, the second body is fixed to a side of the second connecting member away from the second sliding block, the screen is respectively arranged on a side of the first body, the automatic synchronous hinge device and the second body away from the base, and the driving module is electrically connected with the first driving assembly and the second driving assembly respectively, and is used for controlling the first driving assembly and the second driving assembly to work respectively.

[0032] Preferably, the electronic device further comprises a first support sheet, a second support sheet and a third support sheet arranged side by side; the first support sheet is arranged on the first connecting piece and located on the side of the first slider away from the base, the second support sheet is arranged on the side of the fixed sheet away from the base, and the third support sheet is arranged on the second connecting piece and located on the side of the second slider away from the base; the first support sheet, the second support sheet and the third support sheet are arranged on the side of the screen close to the base. Advantages

[0033] Compared with the prior art, the automatic synchronous hinge device of the present application is driven by the first gear transmission assembly and the second gear transmission assembly through the first driving assembly and the second driving assembly; the first gear transmission assembly and the second gear transmission assembly are in transmission connection with the first hinge assembly, which is used to drive the first hinge assembly to realize automatic synchronous folding or unfolding; one end of the first slider and one end of the second slider of the first hinge assembly are in transmission connection with the first gear transmission assembly and the second gear transmission assembly, respectively; the first fixed block is fixed on the side of the base away from the first slider and the second slider; the first swing arm and the second swing arm are in rotational connection with the first fixed block at the ends close to each other, the first connecting piece and the second connecting piece are located on the opposite sides of the first fixed block, the other end of the first slider is in sliding connection with the first connecting piece, the end of the first swing arm away from the first fixed block is in rotational connection with the first connecting piece, the other end of the second slider is in sliding connection with the second connecting piece, and the end of the second swing arm away from the first fixed block is in rotational connection with the second connecting piece; the first slider and the second slider are driven to slide in the first connecting piece and the second connecting piece by the first driving assembly and the second driving assembly, respectively, to realize the swinging effect; at the same time, the first swing arm and the second swing arm are in sliding connection with the first connecting piece and the second connecting piece, so that the opening and closing speed and the consistency of the first swing arm and the second swing arm on both sides are consistent, and the user experience is optimized. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0035] Fig. 1 is a structural schematic view of the automatic synchronous hinge device provided by the embodiment of the present application;

[0036] Fig. 2 is an exploded structural schematic view of the automatic synchronous hinge device provided by the embodiment of the present application;

[0037] Fig. 3 is an exploded view of the first hinge assembly of Fig. 2;

[0038] Fig. 4 is a cross-sectional view along line A-A of Fig. 1;

[0039] Fig. 5 is a structural schematic view of the first connecting piece according to an embodiment of the present application;

[0040] Fig. 6 is a structural schematic view of the second connecting piece according to an embodiment of the present application;

[0041] Fig. 7 is a structural schematic view of an electronic device according to an embodiment of the present application;

[0042] Fig. 8 is an exploded view of the electronic device according to an embodiment of the present application;

[0043] Fig. 9 is a cross-sectional view along line B-B of Fig. 7.

[0044] In the drawings, 100 is an automatic synchronization hinge device, 1 is a base, 2 is a first driving assembly, 21 is a first motor, 22 is a first speed reducer, 3 is a second driving assembly, 31 is a second motor, 32 is a second speed reducer, 4 is a first gear transmission assembly, 41 is a first gear, 42 is a second gear, 43 is a third gear, 44 is a fourth gear, 45 is a first output shaft, 5 is a second gear transmission assembly, 51 is a fifth gear, 52 is a sixth gear, 53 is a seventh gear, 54 is an eighth gear, 55 is a second output shaft, 6 is a first hinge assembly, 61 is a first sliding block, 62 is a second sliding block, 63 is a first fixed block, 64 is a first swing arm, 65 is a second swing arm, 66 is a first connecting piece, 661 is a first connecting body, 662 is a first T-shaped slot, 663 is a first arc-shaped slot, 67 is a second connecting piece, 671 is a second connecting body, 672 is a second T-shaped slot, 673 is a second arc-shaped slot, 7 is a support, 8 is a fixing piece, 81 is an arc-shaped surface, 9 is a fixing sheet, 10 is a second hinge assembly, and 11 is a conductive piece.

[0045] 200 is an electronic device, 201 is a first body, 202 is a second body, 203 is a screen, 204 is a driving module, 205 is a lithium battery module, 206 is a first supporting sheet, 207 is a second supporting sheet, 208 is a third supporting sheet, and 209 is a control switch. Embodiments of the present application

[0046] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0047] Embodiment one

[0048] Referring to FIG. 1-6, the embodiment of the present application provides an automatic synchronous hinge device 100, which comprises a base 1, a first driving assembly 2, a second driving assembly 3, a first gear transmission assembly 4, a second gear transmission assembly 5 and a first hinge assembly 6.

[0049] The base 1 is used for supporting and fixing the first driving assembly 2, the second driving assembly 3, the first gear transmission assembly 4, the second gear transmission assembly 5, the first hinge assembly 6 and the first fixed block 63.

[0050] The first driving assembly 2 and the second driving assembly 3 are fixed side by side on the base 1. The first driving assembly 2 and the second driving assembly 3 are arranged side by side along the long axis direction of the base 1.

[0051] The first gear transmission assembly 4 and the second gear transmission assembly 5 are respectively in transmission connection with the first driving assembly 2 and the second driving assembly 3. The first gear transmission assembly 4 and the second gear transmission assembly 5 are coupled with each other to form synchronous transmission. The first hinge assembly 6 is installed on the base 1. The first gear transmission assembly 4 and the second gear transmission assembly 5 are respectively in transmission connection with the first hinge assembly 6, which is used for driving the first hinge assembly 6 to realize automatic synchronous folding or unfolding.

[0052] The first hinge assembly 6 comprises a first sliding block 61, a second sliding block 62, a first swing arm 64, a second swing arm 65, a first fixed block 63, a first connecting piece 66 and a second connecting piece 67. The first sliding block 61 and the second sliding block 62 are arranged opposite to each other. One end of the first sliding block 61 and one end of the second sliding block 62 are respectively in transmission connection with the first gear transmission assembly 4 and the second gear transmission assembly 5. The first sliding block 61 and the second sliding block 62 are respectively driven to overturn by the first gear transmission assembly 4 and the second gear transmission assembly 5.

[0053] The first fixed block 63 is fixed on the base 1 and located on the side of the first sliding block 61 and the second sliding block 62 away from the first driving assembly 2 and the second driving assembly 3.

[0054] The first swing arm 64 and the second swing arm 65 are arranged side by side. The first swing arm 64 and the second swing arm 65 are respectively in rotational connection with the first fixed block 63 at the end close to each other.

[0055] The first connecting piece 66 and the second connecting piece 67 are located on opposite sides of the first fixed block 63, the other end of the first sliding block 61 is in sliding connection with the first connecting piece 66, the end of the first swing arm 64 away from the first fixed block 63 is in rotary connection with the first connecting piece 66, and the other end of the second sliding block 62 is in sliding connection with the second connecting piece 67; and the end of the second swing arm 65 away from the first fixed block 63 is in rotary connection with the second connecting piece 67. The first gear transmission assembly 4 and the second gear transmission assembly 5 are driven to move by the first driving assembly 2 and the second driving assembly 3 respectively. The first sliding block 61 and the second sliding block 62 are flipped by the first gear transmission assembly 4 and the second gear transmission assembly 5 respectively, the first connecting piece 66 connects the first swing arm 64 and the first sliding block 61 respectively, and the second connecting piece 67 connects the second sliding block 62 and the second swing arm 65 respectively. The flipping angles of the first sliding block 61 and the second sliding block 62 are consistent by synchronous movement of the first driving assembly 2 and the second driving assembly 3, so that the first sliding block 61 and the second sliding block 62 slide on the first connecting piece 66 and the second connecting piece 67 respectively, and then drive the first swing arm 64 and the second swing arm 65 to swing, so that the synchronous opening and closing effect is achieved. While the first driving assembly 2 and the second driving assembly 3 are driven in parallel, the two output shafts are coupled and driven by the gear set, so that synchronous opening and closing is achieved on both sides, and the user experience of intelligence and technology is met.

[0056] Meanwhile, the first driving assembly 2, the second driving assembly 3, the first gear transmission assembly 4, the second gear transmission assembly 5 and the first hinge assembly 6 are all arranged on the base 1, so that a higher reduction ratio is obtained in the narrow space of the base 1 based on the composite reduction transmission system designed by the driving assembly, and the torque and electric drive force required for hinge opening and closing are ensured. The system has high integration degree, small occupied space and wider application scenarios.

[0057] Specifically, the automatic synchronous hinge device 100 reasonably allocates the smaller radial width, axial length and longitudinal height space, has compact structure, high space utilization rate, high component integration degree and reliability, and can provide sufficient opening and closing force for the hinge system.

[0058] In the embodiment, the first driving assembly 2 includes a first motor 21 fixed to the base 1 and a first reduction box 22 fixed to the base 1 and in transmission connection with the first motor 21, and the output end of the first reduction box 22 is in transmission connection with the first gear transmission assembly 4. A higher reduction ratio is obtained by the output end of the first motor 21 through the first reduction box 22 composite reduction transmission system, and the torque and electric drive force required for hinge opening and closing are ensured.

[0059] The second driving assembly 3 comprises a second motor 31 fixed to the base 1 and a second speed reducer 32 fixed to the base 1 and in transmission connection with the second motor 31, and the output end of the second speed reducer 32 is in transmission connection with the second gear transmission assembly 5. A higher reduction ratio is obtained through the output end of the second motor 31 through the composite reduction transmission system of the second speed reducer 32, so as to ensure the torque and electric drive force required for the opening and closing of the hinge. Through the first motor 21 and the second motor 31 for driving the first speed reducer 22 and the second speed reducer 32 respectively, the double-motor parallel driving is realized, and the double-output shafts are coupled and transmitted through the gear set, so that the first swing arm 64 and the second swing arm 65 on both sides realize synchronous opening and closing, the opening and closing process is stable, the opening and closing speed and time consistency of the two swing arms are ensured, and the intelligent and technological user experience is met.

[0060] In the embodiment, the first speed reducer 22 and the second speed reducer 32 are both 3-stage planetary speed reducers.

[0061] In the embodiment, the automatic synchronous hinge device 100 further comprises a support 7, the support 7 is fixed to the base 1, and the first speed reducer 22 and the second speed reducer 32 are respectively fixed to the support 7. The support 7 facilitates the installation and fixation of the first speed reducer 22 and the second speed reducer 32, so that the first speed reducer 22 and the second speed reducer 32 are stably driven by the first motor 21 and the second motor 31.

[0062] In the embodiment, the first gear transmission assembly 4 comprises a first gear 41, a second gear 42 in meshing connection with the first gear 41, a third gear 43 in coaxial transmission with the second gear 42, a fourth gear 44 in meshing connection with the third gear 43, and a first output shaft 45 fixed to one end of the fourth gear 44 away from the first motor 21, the first sliding block 61 is sleeved and fixed to the first output shaft 45, and the distal end of the first output shaft 45 is in rotational connection with the first fixed block 63.

[0063] In the embodiment, the diameter of the first gear 41 is equal to the diameter of the third gear 43, and the diameter of the second gear 42 is equal to the diameter of the fourth gear 44; and the diameter of the second gear 42 is greater than the diameter of the first gear 41.

[0064] The second gear transmission assembly 5 comprises a fifth gear 51, a sixth gear 52 engaged with the fifth gear 51, a seventh gear 53 coaxially driven with the sixth gear 52, an eighth gear 54 engaged with the seventh gear 53, and a second output shaft 55 fixed to one end of the eighth gear 54 away from the first motor 21, the second sliding block 62 is sleeved and fixed to the second output shaft 55, and the end of the second output shaft 55 is rotationally connected with the first fixed block 63; the second gear 42 is coupled with the sixth gear 52.

[0065] In the embodiment, the diameter of the first gear 41 is equal to the diameter of the fifth gear 51, the diameter of the second gear 42 is equal to the diameter of the sixth gear 52, the diameter of the third gear 43 is equal to the diameter of the seventh gear 53, and the diameter of the fourth gear 44 is equal to the diameter of the eighth gear 54.

[0066] Specifically, the first motor 21 drives the first reduction box 22 to reduce speed, the output end of the first reduction box 22 drives the first gear 41 to rotate, the first gear 41 drives the second gear 42 and the third gear 43 to rotate coaxially, the third gear 43 drives the fourth gear 44 to rotate, so that the first output shaft 45 drives the first sliding block 61 to slide on the first connecting piece 66, drives the first connecting piece 66 to swing and simultaneously drives the first swing arm 64 to swing. The second motor 31 drives the second reduction box 32 to reduce speed, the output end of the second reduction box 32 drives the fifth gear 51 to rotate, the fifth gear 51 drives the sixth gear 52 and the seventh gear 53 to rotate coaxially, the seventh gear 53 drives the eighth gear 54 to rotate, so that the second output shaft 55 drives the second sliding block 62 to slide on the second connecting piece 67, drives the second connecting piece 67 to swing and simultaneously drives the second swing arm 65 to swing. The second gear 42 is coupled with the sixth gear 52, realizing parallel driving of the two motors, and the two output shafts are coupled and driven by the gear set, so that the first swing arm 64 and the second swing arm 65 on both sides realize synchronous opening and closing, ensuring smooth opening and closing process, consistency of opening and closing speed and time length, and meeting the user experience of intelligence and technology.

[0067] In the embodiment, the first gear transmission assembly 4 and the second gear transmission assembly 5 are both 2-stage parallel gear sets, and by installing the above-mentioned components on the base 1, a high transmission ratio torque output structure of double-motor driving, 3-stage planetary reducer and 2-stage flat gear set in a narrow space can be realized, providing sufficient opening and closing force for the hinge system.

[0068] In the embodiment, the automatic synchronous hinge device 100 further comprises a fixing plate 9, which is fixedly inserted into the base 1, and the fixing plate 9 is arranged between the first gear 41 and the third gear 43 and between the fifth gear 51 and the seventh gear 53 respectively, and the first gear 41 to the eighth gear 54 are rotationally connected with the fixing plate 9. The fixing plate 9 is used for supporting the first gear 41 to the eighth gear 54, so that the first gear 41 to the eighth gear 54 have good support stability and stable power transmission during driving.

[0069] In the embodiment, the automatic synchronous hinge device 100 further comprises a fixing piece 8, which is provided with an arc surface 81, and the fixing piece 8 is fixed to the base 1, the fixing plate 9 is fixedly inserted into the fixing piece 8, and the third gear 43, the fourth gear 44, the seventh gear 53 and the eighth gear 54 are rotationally arranged on the arc surface 81. The fixing piece 8 is used for conveniently supporting the first gear transmission assembly 4 and the second gear transmission assembly 5, thereby saving installation space.

[0070] In the embodiment, the first connecting piece 66 comprises a first connecting body 661, a first T-shaped groove 662 and a first arc-shaped groove 663, which are formed through the first connecting body 661 from a side close to the first fixed block 63 to a side away from the first fixed block 63; the other end of the first sliding block 61 is arranged in the first T-shaped groove 662 and forms a sliding connection, and the other end of the first swing arm 64 is arranged in the first arc-shaped groove 663 and forms a sliding connection. The first sliding block 61 is flipped under the driving of the first motor 21, drives the first connecting body 661 to flip and move upward, so that the first swing arm 64 slides in the first arc-shaped groove 663, and the first connecting body 661 also swings with the movement of the first sliding block 61, thereby driving the first swing arm 64 to swing and realizing the folding or opening function.

[0071] The second connecting piece 67 comprises a second connecting body 671, a second T-shaped groove 672 and a second arc-shaped groove 673, which are formed through the second connecting body 671 from a side close to the first fixed block 63 to a side away from the first fixed block 63; the other end of the second sliding block 62 is arranged in the second T-shaped groove 672 and forms a sliding connection, and the other end of the second swing arm 65 is arranged in the second arc-shaped groove 673 and forms a sliding connection. The second sliding block 62 is flipped under the driving of the second motor 31, drives the second connecting body 671 to flip and move upward, so that the second swing arm 65 slides in the second arc-shaped groove 673, and the second connecting body 671 also swings with the movement of the second sliding block 62, thereby driving the second swing arm 65 to swing and realizing the folding or opening function.

[0072] In the embodiment, the automatic synchronous hinge device 100 further comprises a second hinge assembly 10 fixed to the other end of the base 1, the second hinge assembly 10 is arranged opposite to the first hinge assembly 6, and the first hinge assembly 6 and the second hinge assembly 10 are consistent in structure. By arranging the second hinge assembly 10 and the first hinge assembly 6 at opposite ends of the base 1 respectively, the stability of the automatic synchronous hinge device 100 is high throughout the day.

[0073] In the embodiment, the automatic synchronous hinge device 100 further comprises a conductive piece 11 fixed to the base 1 and located between the first driving assembly 2 and the second driving assembly 3, one end of the conductive piece 11 is electrically connected with the first driving assembly 2 and the second driving assembly 3 respectively, and the other end of the conductive piece 11 is used for connecting an external power supply.

[0074] Embodiment two

[0075] Referring to FIGS. 1-9, the embodiment of the present application provides an electronic device 200, which comprises a first body 201, a second body 202, a control switch 209, a screen 203, a driving module 204, and an automatic synchronous hinge device 100 as in the above-mentioned embodiment one; the control switch 209 controls the work of the driving module 204, the first body 201 and the second body 202 are located at two sides of the base 1, the first body 201 is fixed to the side of the first connecting piece 66 away from the first sliding block 61, the second body 202 is fixed to the side of the second connecting piece 67 away from the second sliding block 62; the screen 203 is respectively arranged on the side of the first body 201, the automatic synchronous hinge device 100, and the second body 202 away from the base 1; the driving module 204 is electrically connected with the first driving assembly 2 and the second driving assembly 3 respectively, and is used for controlling the work of the first driving assembly 2 and the second driving assembly 3 respectively. By driving the first motor 21 and the second motor 31 through the driving module 204, the planetary reducer and the parallel gear set add transmission ratio to the system to meet the torque needs of the folding mobile phone, realize synchronous electric opening and closing of the two sides of the hinge, and can meet the user experience of intelligence and technology.

[0076] Optionally, the driving module 204 can be a microcontroller, and the first motor 21 and the second motor 31 are driven through the microcontroller, and the driving control effect is good.

[0077] Specific, automatic synchronization hinge device 100 by lithium battery module 205 power supply, by driving module 204 control, as output motor and driving module 204 using FPC circuit connection, ensure that folding does not damage the circuit, the first motor 21 and the second motor 31 through the mechanism of double reduction output torque drive hinge open and close action, the user can through the side key switch or remote control to realize the automatic opening and closing of the hinge structure.

[0078] In the embodiment, the electronic device 200 further comprises a first support sheet 206, a second support sheet 207 and a third support sheet 208 arranged side by side; the first support sheet 206 is arranged on the first connecting piece 66 and located on the side of the first sliding block 61 away from the base 1, the second support sheet 207 is arranged on the side of the fixed sheet 9 away from the base 1 and electrically connected with the conductive piece 11, and the third support sheet 208 is arranged on the second connecting piece 67 and located on the side of the second sliding block 62 away from the base 1; the first support sheet 206, the second support sheet 207 and the third support sheet 208 are arranged on the side of the screen 203 close to the base 1. The first support sheet 206, the second support sheet 207 and the third support sheet 208 can be FPC circuit boards, which are convenient to install.

[0079] Compared with the related art, the automatic synchronization hinge device of the present application is characterized in that the first gear transmission assembly and the second gear transmission assembly are respectively connected with the first driving assembly and the second driving assembly; the first gear transmission assembly and the second gear transmission assembly are respectively connected with the first hinge assembly for driving the first hinge assembly to realize automatic synchronization folding or unfolding; one end of the first sliding block and one end of the second sliding block of the first hinge assembly are respectively connected with the first gear transmission assembly and the second gear transmission assembly; the first fixed block is fixed on the side of the base away from the first sliding block and the second sliding block; the first swing arm and the second swing arm are respectively rotatably connected with the first fixed block on the side close to each other; the first connecting piece and the second connecting piece are located on the opposite sides of the first fixed block; the other end of the first sliding block is slidably connected with the first connecting piece; the end of the first swing arm away from the first fixed block is rotatably connected with the first connecting piece; the other end of the second sliding block is slidably connected with the second connecting piece; the end of the second swing arm away from the first fixed block is rotatably connected with the second connecting piece; the first sliding block and the second sliding block are respectively driven by the first driving assembly and the second driving assembly to slide in the first connecting piece and the second connecting piece to realize the swing effect; at the same time, the first swing arm and the second swing arm are slidably connected with the first connecting piece and the second connecting piece, so that the opening and closing speed and time of the first swing arm and the second swing arm on both sides are consistent, and the user experience is optimized.

[0080] The above merely describes the embodiments of the present application, and it should be pointed out that, for those skilled in the art, improvements can be made without departing from the inventive concept, and these all belong to the protection scope of the present application.

Claims

1. An automatic synchronous hinge device, characterized by, It comprises: a base; a first drive assembly and a second drive assembly fixed side by side to the base; a first gear transmission assembly and a second gear transmission assembly respectively in transmission connection with the first drive assembly and the second drive assembly, the first gear transmission assembly and the second gear transmission assembly being coupled to each other to form synchronous transmission; and a first hinge assembly mounted to the base, the first gear transmission assembly and the second gear transmission assembly being respectively in transmission connection with the first hinge assembly for driving the first hinge assembly to realize automatic synchronous folding or unfolding; The first hinge assembly comprises: a first slider and a second slider arranged opposite to each other, one end of the first slider and one end of the second slider being respectively in transmission connection with the first gear transmission assembly and the second gear transmission assembly; a first fixed block fixed to the base and located on the side of the first slider and the second slider away from the first drive assembly and the second drive assembly; a first swing arm and a second swing arm arranged side by side, and one end of the first swing arm and one end of the second swing arm close to each other being respectively in rotational connection with the first fixed block; and a first connecting piece and a second connecting piece located on the opposite sides of the first fixed block, the other end of the first slider being in sliding connection with the first connecting piece, one end of the first swing arm away from the first fixed piece being in rotational connection with the first connecting piece, the other end of the second slider being in sliding connection with the second connecting piece, and one end of the second swing arm away from the first fixed block being in rotational connection with the second connecting piece.

2. The self-synchronizing hinge device of claim 1, wherein, The first drive assembly comprises a first motor fixed to the base and a first speed reducer fixed to the base and in transmission connection with the first motor, the output end of the first speed reducer being in transmission connection with the first gear transmission assembly; The second drive assembly comprises a second motor fixed to the base and a second speed reducer fixed to the base and in transmission connection with the second motor, the output end of the second speed reducer being in transmission connection with the second gear transmission assembly.

3. The self-synchronizing hinge device of claim 2, wherein, The automatic synchronous hinge device further comprises a support fixed to the base, the first speed reducer and the second speed reducer being respectively fixed to the support.

4. The self-synchronizing hinge device of claim 2, wherein, The first gear transmission assembly comprises a first gear, a second gear meshing with the first gear, a third gear in coaxial transmission with the second gear, a fourth gear meshing with the third gear, and a first output shaft fixed to one end of the fourth gear away from the first motor, the first slider being sleeved and fixed to the first output shaft, and the distal end of the first output shaft being in rotational connection with the first fixed block; The second gear transmission assembly comprises a fifth gear, a sixth gear engaged with the fifth gear, a seventh gear coaxially driven with the sixth gear, an eighth gear engaged with the seventh gear, and a second output shaft fixed to one end of the eighth gear away from the first motor, the second sliding block is sleeved and fixed to the second output shaft, and the end of the second output shaft is rotationally connected with the first fixed block; the second gear is coupled with the sixth gear.

5. The self-synchronizing hinge device of claim 4, wherein, The diameter of the first gear is equal to the diameter of the third gear, and the diameter of the second gear is equal to the diameter of the fourth gear; the diameter of the second gear is greater than the diameter of the first gear. The diameter of the first gear is equal to the diameter of the fifth gear, the diameter of the second gear is equal to the diameter of the sixth gear, the diameter of the third gear is equal to the diameter of the seventh gear, and the diameter of the fourth gear is equal to the diameter of the eighth gear.

6. The self-synchronizing hinge device of claim 5, wherein, The automatic synchronous hinge device further comprises a fixed sheet fixed to the base, the fixed sheet is arranged between the first gear and the third gear and between the fifth gear and the seventh gear, respectively, and the first gear to the eighth gear are rotationally connected with the fixed sheet.

7. The self-synchronizing hinge device of claim 6, wherein, The automatic synchronous hinge device further comprises a fixed piece provided with an arc surface, the fixed piece is fixed to the base, the fixed sheet is inserted and fixed to the fixed piece, and the third gear, the fourth gear, the seventh gear and the eighth gear are rotationally arranged on the arc surface.

8. The self-synchronizing hinge device of claim 2, wherein, The first reduction box and the second reduction box are both 3-stage planetary reduction boxes.

9. The self-synchronizing hinge device of claim 1, wherein, The first connecting piece comprises a first connecting body, a first T-shaped slot and a first arc-shaped slot formed through the first connecting body from one side close to the first fixed block to the other side away from the first fixed block; the other end of the first sliding block is arranged in the first T-shaped slot and forms a sliding connection, and the other end of the first swing arm is arranged in the first arc-shaped slot and forms a rotational connection. The second connecting piece comprises a second connecting body, a second T-shaped slot and a second arc-shaped slot formed through the second connecting body from one side close to the first fixed block to the other side away from the first fixed block; the other end of the second sliding block is arranged in the second T-shaped slot and forms a sliding connection, and the other end of the second swing arm is arranged in the second arc-shaped slot and forms a rotational connection.

10. The self-synchronizing hinge device of claim 1, wherein, The automatic synchronous hinge device further comprises a second hinge assembly fixed to the other end of the base, the second hinge assembly is arranged opposite to the first hinge assembly; and the first hinge assembly and the second hinge assembly are structurally consistent.

11. The self-synchronizing living hinge device of claim 1, wherein, The automatic synchronous hinge device further comprises a conductive piece fixed to the base and located between the first driving assembly and the second driving assembly, one end of the conductive piece is electrically connected with the first driving assembly and the second driving assembly, respectively, and the other end of the conductive piece is used for connecting an external power supply.

12. An electronic device, comprising: The electronic device comprises a first body, a second body, a control switch, a screen, a driving module and the automatic synchronous hinge device as claimed in any one of claims 1-11; the control switch controls the driving module to work; the first body and the second body are oppositely located on two sides of the base; the first body is fixed to the first connecting piece away from the first slider; the second body is fixed to the second connecting piece away from the second slider; the screen is respectively covered and fixed to the first body, the automatic synchronous hinge device and the second body away from the base; the driving module is electrically connected with the first driving assembly and the second driving assembly respectively, and is used for controlling the first driving assembly and the second driving assembly to work respectively.

13. The electronic device of claim 12, wherein, The electronic device further comprises a first supporting sheet, a second supporting sheet and a third supporting sheet arranged side by side; the first supporting sheet is arranged on the first connecting piece and located on the side of the first slider away from the base; the second supporting sheet is covered and fixed to the fixing sheet away from the base; the third supporting sheet is arranged on the second connecting piece and located on the side of the second slider away from the base; the first supporting sheet, the second supporting sheet and the third supporting sheet are respectively arranged on the side of the screen close to the base.

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