Hinge mechanism and electronic device

Abstract

The invention discloses a hinge mechanism and electronic equipment, and belongs to the field of electronic equipment.The hinge mechanism comprises a base, a first swing arm, a second swing arm, a door plate, a shell connecting piece and a synchronizing shaft, the base is provided with a first rotating groove, the first end of the first swing arm is rotationally connected with the first rotating groove, and the second end of the second swing arm is rotationally connected with the second rotating groove; the second end of the first swing arm is rotationally connected with the door plate, and the end, away from the first swing arm, of the door plate is rotationally connected with the shell connecting piece. The second swing arm is rotationally connected with the base through the synchronizing shaft, the second swing arm is in sliding fit with the shell connecting piece, and the second swing arm and the first swing arm are arranged in a linkage mode so as to drive the first swing arm and the door plate to rotate relative to the base together in the process that the second swing arm rotates relative to the base.

Description

Technical Field

[0001] The present application belongs to the technical field of electronic equipment, and specifically relates to a hinge mechanism and an electronic equipment. Background Art

[0002] Influenced by user demand, foldable electronic devices are increasingly favored by consumers for their large display area and strong portability. In order to form a "water drop-shaped" screen space, the hinge mechanism used in current foldable electronic devices has one end of the swing arm rotatably connected to the base, and the rotation axis of the two is located outside the base, and the other end of the swing arm is rotatably connected to the shell connector, so that during the rotation of the shell connector relative to the base, the rotation angle of the aforementioned swing arm can be greater than the rotation angle of the shell connector, usually around 100 degrees, so that the space formed between the swing arms on the opposite sides of the base is relatively large to accommodate the folded part in the middle of the display screen.

[0003] However, in the hinge mechanism of the above structure, the diameter of the "teardrop-shaped" screen-holding space formed between the swing arms on the opposite sides of the base, that is, the maximum width is still relatively small, which makes the folding degree of the folded part of the display screen still relatively large, resulting in more obvious creases on the display screen, which will have a greater adverse effect on the display effect and service life of the display screen. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a hinge mechanism and an electronic device to solve the problem that the width of the screen space formed when the current hinge mechanism is in a folded state is still relatively small, which leads to obvious creases on the display screen, which has a significant adverse effect on the display effect and service life of the display screen.

[0005] In a first aspect, an embodiment of the present application discloses a hinge mechanism, which includes a base, a first swing arm, a second swing arm, a door panel, a housing connector and a synchronization shaft, wherein: The base is provided with a first rotation groove, the first end of the first swing arm is rotationally connected to the first rotation groove, the second end of the first swing arm is rotationally connected to the door panel, and the end of the door panel away from the first swing arm is rotationally connected to the housing connecting member; The second swing arm is rotationally connected to the base via the synchronization shaft, and the second swing arm is slidingly matched with the shell connecting piece. The second swing arm is linked with the first swing arm to drive the first swing arm and the door panel to rotate relative to the base during the rotation of the second swing arm relative to the base.

[0006] In a second aspect, an embodiment of the present application discloses an electronic device, which includes a shell, a display screen and the above-mentioned hinge mechanism, wherein the shells are provided on opposite sides of the hinge mechanism, each of the shells is fixedly connected to the corresponding shell connector, and the display screen is connected to the shell.

[0007] The embodiment of the present application discloses a hinge mechanism, wherein a base is provided with a first rotation groove, and the first end of the first swing arm is rotatably connected to the first rotation groove, so as to increase the volume of the clamping space formed by the first swing arm and the base in the hinge mechanism in a folded state, and the maximum diameter of the clamping space formed; at the same time, by rotatably connecting the second end of the first swing arm to the door panel, and rotatably connecting the end of the door panel away from the first swing arm to the shell connecting member, the shell connecting member can drive the door panel and the first swing arm to rotate relative to the base during the rotation relative to the base, and when the rotation angle of the shell connecting member relative to the base remains unchanged, the rotation angle of the first swing arm alone relative to the base can be reduced, thereby further increasing the volume of the clamping space formed by the first swing arm and the base in the hinge mechanism in the folded state, and the maximum diameter of the clamping space formed, greatly reducing the probability of the first swing arm squeezing the display screen, and alleviating the degree of folding of the display screen, thereby improving the display effect and service life of the display screen.

[0008] In addition, in the hinge mechanism disclosed in the embodiment of the present application, a second swing arm is also provided which is rotatably connected to the base through a synchronization shaft. The second swing arm also slidably cooperates with the shell connecting piece. By linking the second swing arm with the first swing arm, the second swing arm can drive the first swing arm and the door panel to rotate relative to the base during the rotation relative to the base. This makes the rotation trajectory of the first swing arm and the door panel relative to the base controllable, thereby ensuring that each component in the hinge mechanism has a stable movement condition. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings: Figure 1 It is a schematic diagram of the exploded structure of part of the hinge mechanism disclosed in the embodiment of the present application; Figure 2 A schematic diagram of the cooperation between the second swing arm and the door panel in the hinge mechanism disclosed in the embodiment of the present application; Figure 3 and Figure 4 A schematic diagram of the linkage relationship between the first swing arm and the second swing arm in the hinge mechanism disclosed in the embodiment of the present application; Figure 5 and Figure 6A schematic diagram of the matching relationship between the first swing arm, the door panel and the housing connecting member in the hinge mechanism disclosed in the embodiment of the present application; Figure 7 A schematic diagram of the structure including the first swing arm disclosed in the embodiment of the present application; Figure 8 This is a schematic assembly diagram of the first swing arm and the second swing arm disclosed in an embodiment of the present application.

[0010] Reference numerals: 100-base, 110-first rotating groove, 200-first swing arm, 210-first rotating part, 221-first sleeve, 222-second sleeve, 230-connecting body, 240-limiting part, 300-second swing arm, 310-first arm body, 320-second arm body, 400-door panel, 410-support body, 420-third sleeve, 430-second rotating part, 440-connecting shaft, 500-housing connecting piece, 510-second rotating groove, 610-synchronous shaft, 620-elastic part, 630-synchronous cam, 640-gear set, 710 - first pin shaft, 720 - first track member, 730 - second pin shaft, 740 - second track member. DETAILED DESCRIPTION

[0011] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0012] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0013] The present application discloses a hinge mechanism, which can be applied to electronic devices to enable the electronic devices to be foldable. Figure 1-Figure 8As shown, the hinge mechanism disclosed in the embodiment of the present application includes a base 100, a first swing arm 200, a second swing arm 300, a door panel 400, a shell connector 500 and a synchronization shaft 610. Of course, the hinge mechanism can generally also include other components such as a damping mechanism. Considering the simplicity of the text, it will not be introduced in detail here.

[0014] The base 100 is the basic structure of the hinge mechanism, and the first swing arm 200, the second swing arm 300 and other devices can be directly or indirectly mounted on the base 100. The base 100 can usually be formed of a hard material such as metal to ensure that the base 100 has good structural strength. Typically, in order to increase the space in the hinge mechanism for accommodating a display screen, the base 100 is provided with a first rotation groove 110, and the first end of the first swing arm 200 is rotatably connected to the first rotation groove 110. In this case, by designing parameters such as the trajectory and rotation center of the first rotation groove 110, the rotation axis of the first swing arm 200 relative to the base 100 can be located outside the base 100. More specifically, the rotation axis of the first swing arm 200 is located above the base 100, that is, on the side of the base 100 where the screen support side is located. In this case, when the hinge mechanism is in a folded state, the space clamped between the first swing arm 200 and the base 100 is relatively large, thereby reducing the degree of squeezing of the display screen by the first swing arm 200 and increasing the service life of the display screen.

[0015] In order to further expand the space for accommodating the display screen when the hinge mechanism is in the folded state, in the embodiment of the present application, Figure 6 As shown, the second end of the first swing arm 200 is rotatably connected to the door panel 400, and the end of the door panel 400 away from the first swing arm 200 is rotatably connected to the housing connector 500. Specifically, the first swing arm 200 and the door panel 400, as well as the door panel 400 and the housing connector 500 can form a rotatable connection relationship through an axis hole structure. The housing connector 500 is a component in the hinge mechanism that is directly connected to the housing of the electronic device. Generally, the housing and the housing connector 500 in the hinge mechanism can be fixedly connected as a whole by using a connector such as a screw, so that when the electronic device needs to be folded, the user can drive the housing connectors 500 located on the opposite sides of the base 100 in the hinge mechanism to rotate relative to each other by driving the two adjacent housings to rotate relative to each other. When the housing connector 500 rotates relative to the base 100, the door panel 400 can be further lifted to drive the first swing arm 200 to rotate relative to the base 100, so that the hinge mechanism can switch between the folded state and the unfolded state.

[0016] When the hinge mechanism adopts the above structure, the number of moving pairs between the shell connector 500 and the base 100 can be increased, so that the rotation angle of the first swing arm 200 relative to the base 100 is reduced while the rotation angle of the shell connector 500 relative to the base 100 remains unchanged, thereby further increasing the expansion degree of the accommodating space formed by the first swing arm 200 and the base 100. In detail, in the current hinge mechanism, the shell connecting member 500 is directly connected to the base 100 through the first swing arm 200, and then when the shell connecting member 500 rotates relative to the base 100 at an angle of 90°, the rotation angle of the first swing arm 200 relative to the base 100 is usually greater than 90°. During the working process of the hinge mechanism disclosed in the embodiment of the present application, since the shell connecting member 500 is rotationally connected to the first swing arm 200 through the door panel 400, and the end of the first swing arm 200 facing away from the door panel 400 is rotationally connected to the base 100, then, the first swing arm 200 and the door panel 400 can both be rotated relative to the base 100 separately, so that the sum of the rotation angles of the first swing arm 200 and the door panel 400 relative to the base 100 is equal to the rotation angle of the first swing arm 200 relative to the base 100 in the current technology, thereby ensuring that the shell connecting member 500 can still rotate at an angle of 90° relative to the base 100.

[0017] As described above, since the rotation angle of the first swing arm 200 is reduced in the hinge mechanism disclosed in the embodiment of the present application, when the hinge mechanism is in a folded state, the overlapping angle between the first swing arm 200 and the base 100 can be increased to improve the assembly stability between the first swing arm 200 and the base 100, and greatly reduce the probability of the first swing arm 200 being stuck relative to the base 100; at the same time, in the hinge mechanism in the folded state, the space clamped between the first swing arms 200 on the opposite sides of the base 100 can be made relatively larger, so as to reduce the probability of the first swing arm 200 squeezing the display screen and improve the service life of the display screen.

[0018] Of course, in order to ensure that the movement of the first swing arm 200 and the door panel 400 is controllable during the process of the housing connecting member 500 driving the door panel 400 and the first swing arm 200 to rotate relative to the base 100, in the embodiment of the present application, the second swing arm 300 can be rotationally connected with the base 100 through the synchronization shaft 610, and the second swing arm 300 can be slidably matched with the housing connecting member 500, so that during the process of the housing connecting member 500 rotating relative to the base 100, the housing connecting member 500 can drive the second swing arm 300 to rotate relative to the base 100, and during the process of the second swing arm 300 rotating, the second swing arm 300 and the housing connecting member 500 can slide relative to each other. Based on this, by making the second swing arm 300 and the first swing arm 200 linked, during the process of the second swing arm 300 rotating relative to the base 100, the first swing arm 200 and the door panel 400 can be driven to rotate relative to the base 100 together.

[0019] Specifically, the shell connecting member 500 is provided with a slide groove, and the aforementioned slide groove extends in a straight line direction as a whole. Of course, its specific extension direction is related to the actual structure of the second swing arm 300. By making a part of the second swing arm 300 extend into the slide groove of the shell connecting member 500, the second swing arm 300 can form a sliding matching relationship with the shell connecting member 500; at the same time, according to the specific conditions of the rotation trajectories of the first swing arm 200 and the second swing arm 300 relative to the base 100, corresponding matching grooves can be set on the first swing arm 200 and the second swing arm 300. The first swing arm 200 can be rotated relative to the base 100 along a specific rotation trajectory through the aforementioned matching structure, and when the second swing arm 300 rotates relative to the base 100, the first swing arm 200 can be rotated relative to the base 100 along a specific rotation trajectory. Correspondingly, when the rotation trajectory of the first swing arm 200 relative to the base 100 is determined, the door panel 400 can also be rotated correspondingly relative to the base 100. This can ensure that the first swing arm 200 and the door panel 400 can rotate relative to the base 100 according to the preset rotation trajectory, thereby ensuring that the movement of the first swing arm 200 and the door panel 400 is controllable.

[0020] The embodiment of the present application discloses a hinge mechanism, wherein the base 100 is provided with a first rotation groove 110, and the first end of the first swing arm 200 is rotatably connected to the first rotation groove 110, so as to increase the volume of the clamping space formed by the first swing arm 200 and the base 100 in the hinge mechanism in a folded state, and the maximum diameter of the formed clamping space; at the same time, by rotatably connecting the second end of the first swing arm 200 to the door panel 400, and rotatably connecting the end of the door panel 400 away from the first swing arm 200 to the shell connecting member 500, the shell connecting member 500 can rotate relative to the base 100. During the process, the door panel 400 and the first swing arm 200 can be driven to rotate relative to the base 100. When the rotation angle of the shell connecting member 500 relative to the base 100 remains unchanged, the rotation angle of the first swing arm 200 relative to the base 100 can be reduced, thereby further increasing the volume of the clamping space formed by the first swing arm 200 and the base 100 in the hinge mechanism in the folded state, as well as the maximum diameter of the clamping space formed, thereby greatly reducing the probability of the first swing arm 200 squeezing the display screen and alleviating the folding degree of the display screen, thereby improving the display effect and service life of the display screen.

[0021] In addition, in the hinge mechanism disclosed in the embodiment of the present application, a second swing arm 300 is also provided, which is rotatably connected to the base 100 through a synchronization shaft 610. The second swing arm 300 also slides with the shell connecting member 500. By linking the second swing arm 300 with the first swing arm 200, the second swing arm 300 can drive the first swing arm 200 and the door panel 400 to rotate relative to the base 100 during the rotation relative to the base 100. This makes the rotation trajectory of the first swing arm 200 and the door panel 400 relative to the base 100 controllable, thereby ensuring that each component in the hinge mechanism has a stable movement condition.

[0022] As described above, the space formed by the first swing arm 200 and the base 100 is used to accommodate the display screen. Generally, the base 100 is provided with a shell on both sides thereof, and the shell is connected to the base 100 through the corresponding shell connector 500. To this end, in the hinge mechanism disclosed in the embodiment of the present application, the base 100 can also be provided with a first swing arm 200 and a door panel 400 on both sides thereof. Specifically, the base 100 includes a first side and a second side, the first side and the second side of the base 100 are provided with a shell, and the first side of the base 100 is provided with a first swing arm 200 and a door panel 400, and the second side of the base 100 is also provided with a first swing arm 200 and a door panel 400. Optionally, the first swing arm 200 on the first side of the base 100 is rotatably connected between the base 100 and the door panel 400, and the first swing arm 200 on the second side of the base 100 can be rotatably connected between the base 100 and the shell connector 500.

[0023] In order to maximize the screen space of the hinge mechanism, in an embodiment of the present application, the first end of each first swing arm 200 can be rotatably connected to the base 100, and the second end of each first swing arm 200 can be rotatably connected to the corresponding door panel 400. Correspondingly, one end of each door panel 400 away from the corresponding first swing arm 200 is rotatably connected to the corresponding shell connector 500. In other words, in the embodiment of the present application, the first swing arm 200 located on the first side of the base 100 is rotatably connected between the door panel 400 and the base 100, and the first swing arm 200 located on the second side of the base 100 is also rotatably connected between the door panel 400 and the base 100, which makes the rotation angles of the first swing arms 200 on the first side and the second side of the base 100 relative to the base 100 relatively small, and then when the hinge mechanism is in the folded state, the spacing between the first swing arms 200 on the opposite sides of the base 100 in the width direction of the hinge mechanism is larger, and accordingly, the maximum diameter of the clamping space formed by the first swing arms 200 and the base 100 on the opposite sides of the base is also increased, thereby further improving the accommodation space of the display screen. The width direction of the hinge mechanism is the distribution direction of the door panels 400 on the opposite sides of the base 100 in the hinge mechanism in the unfolded state, which is perpendicular to the rotation axis of the first swing arm 200 and also perpendicular to the thickness direction of the base 100.

[0024] In a specific embodiment of the present application, the first swing arm 200 is provided with a first pin shaft 710, and the second swing arm 300 is provided with a first track member 720. By making the first pin shaft 710 slidably disposed in the slide groove of the first track member 720, the second track member 740 can drive the first swing arm 200 and the door panel 400 to rotate relative to the base 100 through the first pin shaft 710 during the rotation of the second swing arm 300 relative to the base 100. Of course, in the hinge mechanism disclosed in the embodiment of the present application, it is necessary to determine the motion trajectories of the first swing arm 200 and the second swing arm 300 according to the specific structure of the first swing arm 200, and then, according to the motion trajectories of the above two, the extension trajectory of the slide groove in the first track member 720 is correspondingly determined, so that the motion trajectories of the second swing arm 300 and the first swing arm 200 can form a linkage relationship through the first track member 720, so that the second swing arm 300 can drive the first swing arm 200 to rotate relative to the base 100 and execute the preset motion path of the first swing arm 200.

[0025] In addition, in the above embodiment, by arranging the first track member 720 on the second swing arm 300, the size of the first swing arm 200 can be relatively small, and because the second swing arm 300 is connected between the shell connector 500 and the base 100, the size of the second swing arm 300 is relatively large, so that the second track member 740 can be installed on the second swing arm 300 more appropriately without additionally increasing the size of the second swing arm 300, thereby making it possible to keep the size of each component in the hinge mechanism relatively small as much as possible, thereby reducing the overall size of the entire hinge mechanism.

[0026] In order to improve the connection reliability of the first swing arm 200 in the hinge mechanism, Figure 7 As shown, the first swing arm 200 may include a first rotating part 210, a first sleeve 221 and a second sleeve 222, wherein the first rotating part 210 is rotatably connected to the first rotating groove 110, and the first rotating part 210 may specifically be a bearing-type structure, that is, the first rotating part 210 is an arc-shaped wall, which is rotatably connected to the first rotating groove 110 by extending into the first rotating groove 110, which makes the stability of the rotational connection relationship between the two relatively high.

[0027] At the same time, the first sleeve 221 and the second sleeve 222 are both connected to the first rotating part 210, and the first sleeve 221 and the second sleeve 222 are spaced apart along the rotation axis of the first swing arm 200. Figure 1 As shown, by making the door panel 400 include a supporting body 410 and a third sleeve 420, and the supporting body 410 is provided with an avoidance gap, by making the third sleeve 420 fixedly connected to the supporting body 410, and making the first sleeve 221, the second sleeve 222 and the third sleeve 420 all located in the avoidance gap, so that the third sleeve 420 is clamped between the first sleeve 221 and the second sleeve 222, the door panel 400 and the first swing arm 200 can form a limited matching relationship in the rotation axis direction of the first swing arm 200. In this case, the connection stability between the first swing arm 200 and the door panel 400 can be improved.

[0028] Of course, in order to ensure that the first swing arm 200 and the door panel 400 can form a reliable connection relationship, in the embodiment of the present application, the hinge mechanism includes a connecting shaft 440, and the first swing arm 200 and the door panel 400 can be formed into a rotational connection relationship by sequentially inserting the connecting shaft 440 into the first sleeve 221, the second sleeve 222 and the third sleeve 420. In addition, a limit pin or other structure can be provided at both ends of the connecting shaft 440 to prevent the connecting shaft 440 from being disengaged from the first swing arm 200 and the door panel 400.

[0029] In addition, during the processing of the first swing arm 200, the first swing arm 200 including the first rotating portion 210, the first sleeve 221 and the second sleeve 222 can still be formed in an integrated manner, thereby making the structural strength of the first swing arm 200 relatively higher. Of course, in the case where the first swing arm 200 is provided with the first pin 710, the first pin 710 can also be formed at the corresponding position.

[0030] In order to improve the rotational stability between the first swing arm 200 and the base 100, in the embodiment of the present application, the first swing arm 200 can include a connecting body 230 and two first rotating parts 210, and the two first rotating parts 210 are arranged at intervals along the rotation axis. At the same time, a limiting part 240 is provided on the side of one of the two first rotating parts 210 close to the other, and the limiting part 240 cooperates with the base 100 in the upper limit position of the rotation axis of the first swing arm 200, that is, in the embodiment of the present application, the openings of the two first rotating parts 210 of the first swing arm 200 are opposite to each other, and then after the first swing arm 200 and the base 100 form a matching relationship, the first swing arm 200 can form a relatively fixed limiting relationship with the base 100 in the rotation axis through the two first rotating parts 210, thereby preventing the first swing arm 200 from axially moving relative to the base 100 and adversely affecting the movement stability of the first swing arm 200.

[0031] Specifically, the two first rotating parts 210 can each include a plurality of arcuate walls, and the arcuate walls are connected by the limiting part 240. Accordingly, each arcuate wall can extend into the first arcuate slot correspondingly provided on the base 100, so that the first rotating part 210 and the base 100 can form a sliding and rotating matching relationship. In addition, in order to ensure that the two first rotating parts 210 are still in an integral structure, in the embodiment of the present application, the first swing arm 200 includes a connecting body 230, and the two first rotating parts 210 are fixedly connected by the connecting body 230. In addition, the first sleeve 221 and the second sleeve 222 of the first swing arm 200 are also fixedly connected to the connecting body 230. Of course, the first sleeve 221 and the second sleeve 222 are located on one side of the connecting body 230, and the two first rotating parts 210 are located on the other side of the connecting body 230.

[0032] As described above, a rotational fit relationship can be formed between the door panel 400 and the shell connector 500 through an axial hole-like structure. In order to improve the rotational fit stability between the two while minimizing the installation space and rotation space occupied by the connection structure between the door body and the shell connector 500, in another embodiment of the present application, the shell connector 500 is provided with a second rotation groove 510, and the second rotation groove 510 extends along the direction of the rotation axis around the first swing arm 200. At the same time, the door panel 400 can include a supporting body 410 and a second rotating part 430, and the second rotating part 430 is connected to the side of the supporting body 410 facing the shell connecting member 500, and the second rotating part 430 is rotatably connected to the second rotating groove 510, so that a rotational connection relationship can be formed between the door panel 400 and the shell connecting member 500 through a bearing-like structural member, thereby ensuring that the size of the connection structure between the door panel 400 and the shell connecting member 500 is relatively small while the overlapping angle between the second rotating part 430 and the second rotating groove 510 is always relatively large, thereby improving the stability of the rotational matching relationship between the door panel 400 and the shell connecting member 500.

[0033] In addition, when the above-mentioned technical solution is adopted, the span dimension of the supporting structure of the door panel 400 (i.e., the second rotating part 430) in the width direction of the hinge mechanism is relatively large, so that the supporting effect provided by the shell connecting member 500 for the door panel 400 is relatively better, and the supporting rigidity of the door panel 400 is stronger.

[0034] Specifically, the second rotating portion 430 may include a single arc-shaped wall. Accordingly, by forming a single arc-shaped groove as the second rotating groove 510 on the shell connecting member 500, the door panel 400 can form a rotational fit relationship with the base 100. In another embodiment of the present application, the number of the second rotating groove 510 and the second rotating portion 430 can be multiple, and the multiple second rotating portions 430 and the multiple second rotating grooves 510 can be rotationally connected one by one, which can further improve the rotational fit stability between the door panel 400 and the shell connecting member 500. Among them, the rotation axes of the multiple second rotating portions 430 are collinear to ensure that when the multiple second rotating portions 430 rotate relative to the corresponding second rotating grooves 510, the driving effect provided to the door panel 400 is equivalent.

[0035] In a specific embodiment of the present application, the second swing arm 300 can include a first arm body 310 and a second arm body 320, and the first arm body 310 and the second arm body 320 are both rotatably connected to the base 100 through a synchronization shaft 610. Accordingly, the first arm body 310 and the second arm body 320 are both slidably matched with the shell connecting member 500, that is, in the embodiment of the present application, the motion trajectories of the first arm body 310 and the second arm body 320 are the same, and the two move synchronously.

[0036] Based on the second swing arm 300 of the above structure, the first arm body 310 and the second arm body 320 can be arranged at intervals along the rotation axis of the first swing arm 200. In this case, the matching size of the entire second swing arm 300 and the housing connecting member 500 in the rotation axis is relatively larger, so that the stability of the sliding matching relationship between the second swing arm 300 and the housing connecting member 500 is relatively stronger. Among them, the first arm body 310 is located on the side of the second arm body 320 close to the second swing arm 300, that is, relative to the second arm body 320, the spacing between the first arm body 310 and the corresponding first swing arm 200 is relatively smaller. For this reason, the first arm body 310 and the second swing arm 300 can be arranged in linkage to reduce the difficulty of forming the linkage relationship between the second swing arm 300 and the first swing arm 200.

[0037] More specifically, the above-mentioned first track member 720 can be provided on the side of the first arm body 310 in the second swing arm 300 facing away from the second arm body 320, and the first pin shaft 710 can be provided on the side of the first arm body 310 in the first swing arm 200 close to the corresponding second swing arm 300. Accordingly, a part of the first pin shaft 710 extends into the slide groove of the first track member 720, so that in the process of the shell connecting member 500 driving the first arm body 310 to rotate relative to the base 100, the first arm body 310 can drive the first pin shaft 710 to move through the first track member 720, and the first swing arm 200 can rotate relative to the base 100 to complete the preset rotation trajectory.

[0038] As described above, the first swing arm 200 and the second swing arm 300 can form a linkage relationship, and in the process of the housing connector 500 driving the second swing arm 300 to rotate relative to the base 100, the second swing arm 300 drives the first swing arm 200 to rotate relative to the base 100 along a preset trajectory, and accordingly, the first swing arm 200 indirectly drives the door panel 400 to rotate relative to the base 100. In order to further improve the rotation accuracy of the first swing arm 200 and the door panel 400, the second swing arm 300 can also be linked with the door body.

[0039] In detail, based on the hinge mechanism disclosed in the above embodiment of the present application, when the second swing arm 300 includes the first arm body 310 and the second arm body 320, the second arm body 320 can be arranged in linkage with the door panel 400. Among them, the second pin shaft 730 can be arranged on the side of the second arm body 320 close to the first arm body 310, and the second track member 740 can be arranged on the door panel 400. Based on the structure of the door panel 400 and the motion track of the first swing arm 200, the motion track of the door panel 400 relative to the base 100 can be determined. In this case, the extension track of the second track member 740 can be correspondingly determined based on the preset motion track of the door panel 400, so that in the process of the housing connecting member 500 driving the second arm body 320 to rotate relative to the base 100, the second arm body 320 can drive the second pin shaft 730 to move through the second track member 740, and then drive the door panel 400 to complete its preset motion track relative to the base 100.

[0040] In addition, when adopting the above-mentioned technical solution, the second pin shaft 730 can realize the repeated use of the distance between the first arm body 310 and the second arm body 320, so that the matching dimensions of the second swing arm 300 and the shell connecting member 500 in the rotation axis direction of the first swing arm 200 are relatively large. At the same time, the distance between the first arm body 310 and the second arm body 320 can also be used as the accommodation space for the second pin shaft 730 and the second track member 740, which can further improve the compactness between the components in the hinge mechanism, thereby making the overall installation space occupied by the hinge mechanism relatively small.

[0041] In addition, as mentioned above, a damping mechanism may also be provided in the hinge mechanism. Specifically, the damping mechanism may include an elastic member 620, a synchronous cam 630 and a gear set 640. Accordingly, a second swing arm 300 is provided on the first side and the second side of the base 100, and a gear structure and a cam structure are provided on the second swing arms 300 on opposite sides of the base 100. The gear structures are connected by a transmission through the gear set 640, so that when the second swing arm 300 on either side of the base 100 rotates relative to the base 100, the second swing arm 300 on the other side of the base 100 can be driven by the gear set 640 to rotate synchronously relative to the base 100, and the rotation directions of the second swing arms 300 on opposite sides of the base 100 are opposite. At the same time, the cam structures of the second swing arms 300 on the opposite sides of the base 100 respectively form a cam matching relationship with the synchronous cam 630. The synchronous cam 630 can be inserted into the synchronous shaft 610 and relatively fixed with the synchronous shaft 610 in the circumferential direction of the synchronous shaft 610. The synchronous cam 630 and the synchronous shaft 610 slide and match in the rotation axis direction, so that when the second swing arm 300 on either side of the base 100 rotates relative to the base 100, the second swing arm 300 can drive the synchronous cam 630 to move axially relative to the synchronous shaft 610. An elastic member 620 is provided on the side of the synchronous cam 630 away from the second swing arm 300. When the synchronous cam 630 moves axially relative to the second swing arm 300, the synchronous cam 630 squeezes the elastic member 620, thereby generating a damping effect.

[0042] Based on the hinge mechanism disclosed in any of the above embodiments, the embodiment of the present application further discloses an electronic device, which includes a housing, a display screen and the hinge mechanism disclosed in any of the above embodiments, wherein housings are provided on opposite sides of the hinge mechanism, and each housing can be fixedly connected to the corresponding housing connector 500 in the hinge mechanism. Intuitively speaking, the housing located on the first side of the base 100 can form a fixed connection relationship with the housing connector 500 located on the first side of the base 100 through connectors such as screws, and correspondingly, the housing located on the second side of the base 100 can form a fixed connection relationship with the housing connector 500 located on the second side of the base 100 through connectors such as screws. At the same time, the display screen can be connected to the housing, so that the housing can provide support for the display screen, ensuring that the display screen can be stably supported to provide a good display effect. More specifically, the display screen can be fixedly connected to the housing on opposite sides of the hinge mechanism by bonding or the like. Of course, in the electronic device disclosed in the embodiment of the present application, the hinge mechanism can also provide a certain support for the display screen.

[0043] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0044] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A hinge mechanism, characterized in that: It comprises a base (100), a first swing arm (200), a second swing arm (300), a door panel (400), a housing connection member (500) and a synchronization shaft (610), wherein: The base (100) is provided with a first rotation groove (110), the first end of the first swing arm (200) is rotationally connected to the first rotation groove (110), the second end of the first swing arm (200) is rotationally connected to the door panel (400), and one end of the door panel (400) away from the first swing arm (200) is rotationally connected to the housing connecting member (500); The second swing arm (300) is rotationally connected to the base (100) via the synchronization shaft (610), and the second swing arm (300) is slidably matched with the housing connection member (500). The second swing arm (300) is arranged in linkage with the first swing arm (200), so that when the second swing arm (300) rotates relative to the base (100), the first swing arm (200) and the door panel (400) are driven to rotate relative to the base (100).

2. The hinge mechanism according to claim 1, characterized in that: The first side of the base (100) is provided with the first swing arm (200) and the door panel (400), and the second side of the base is provided with the first swing arm (200) and the door panel (400), wherein the first end of each first swing arm (200) is rotatably connected to the base, and the second end of each first swing arm (200) is rotatably connected to the corresponding door panel (400), and one end of each door panel (400) away from the corresponding first swing arm (200) is rotatably connected to the corresponding shell connecting member (500).

3. The hinge mechanism according to claim 1, characterized in that: The first swing arm (200) is provided with a first pin shaft (710), and the second swing arm (300) is provided with a first track member (720). The first pin shaft (710) is slidably arranged in a slide groove of the first track member (720), and when the second swing arm (300) rotates relative to the base (100), the first track member (720) drives the first swing arm (200) and the door panel (400) to rotate relative to the base (100) through the first pin shaft (710).

4. The hinge mechanism according to claim 1, characterized in that: The first swing arm (200) comprises a first rotating portion (210), a first sleeve (221) and a second sleeve (222); the first rotating portion (210) is rotationally connected to the first rotating groove (110); the first sleeve (221) and the second sleeve (222) are both connected to the first rotating portion (210); and the first sleeve (221) and the second sleeve (222) are spaced apart along the rotation axis of the first swing arm (200); The door panel (400) comprises a supporting body (410) and a third sleeve (420), wherein the supporting body (410) is provided with an avoidance notch, the third sleeve (420) is fixedly connected to the supporting body (410), and the first sleeve (221), the second sleeve (222) and the third sleeve (420) are all located in the avoidance notch, the third sleeve (420) is clamped between the first sleeve (221) and the second sleeve (222), and a connecting shaft (440) is passed through the first sleeve (221), the second sleeve (222) and the third sleeve (420) to rotatably connect the first swing arm (200) and the door panel (400).

5. The hinge mechanism according to claim 4, characterized in that: The first swing arm (200) comprises a connecting body (230) and two first rotating parts (210), wherein the two first rotating parts (210) are arranged at intervals along the rotating axis and are fixedly connected via the connecting body (230); A limiting portion (240) is provided on one side of the two first rotating parts (210) close to the other, and the limiting portion (240) cooperates with the base (100) in limiting position along the rotating shaft.

6. The hinge mechanism according to claim 1, characterized in that: The shell connecting member (500) is provided with a second rotation groove (510), and the second rotation groove (510) extends in a direction around the rotation axis of the first swing arm (200). The door panel (400) includes a support body (410) and a second rotation part (430) connected to a side of the support body (410) facing the shell connecting member (500), and the second rotation part (430) is rotationally connected to the second rotation groove (510).

7. The hinge mechanism according to claim 6, characterized in that: The number of the second rotating grooves (510) and the number of the second rotating parts (430) are both plural, and the plurality of second rotating parts (430) are rotatably connected to the plurality of second rotating grooves (510) in a one-to-one correspondence.

8. The hinge mechanism according to claim 1, characterized in that: The second swing arm (300) comprises a first arm body (310) and a second arm body (320), the first arm body (310) and the second arm body (320) are both rotatably connected to the base (100) via the synchronization shaft (610), and the first arm body (310) and the second arm body (320) are both slidably matched with the housing connection member (500); The first arm body (310) and the second arm body (320) are arranged at intervals along the rotation axis of the first swing arm (200), and the first arm body (310) is located on a side of the second arm body (320) close to the second swing arm (300), and the first arm body (310) is arranged in linkage with the first swing arm (200).

9. The hinge mechanism according to claim 8, characterized in that: The second arm body (320) is arranged in linkage with the door panel (400); a second pin shaft (730) is provided on a side of the second arm body (320) close to the first arm body (310); the door panel (400) is provided with a second track member (740); and the second pin shaft (730) is inserted into a slide groove of the second track member (740).

10. An electronic device, characterized in that: It comprises a shell, a display screen and the hinge mechanism described in any one of claims 1 to 9, wherein the shells are provided on opposite sides of the hinge mechanism, each of the shells is fixedly connected to the corresponding shell connector, and the display screen is connected to the shell.

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