Hinge mechanism and electronic device

Abstract

The invention discloses a hinge mechanism and electronic equipment, and belongs to the field of electronic equipment.In the hinge mechanism, a base is provided with a first rotating groove and a second rotating groove, the first rotating groove and the second rotating groove are distributed in a stacked mode in the first direction, and in the two opposite sides, distributed in the second direction, of the base, the first rotating groove and the second rotating groove are arranged in a stacked mode. A first notch of the first rotating groove is formed in one side, a second notch of the second rotating groove is formed in the other side, and the first direction is perpendicular to the second direction; the first shell comprises a first shell body and a first rotating part which are connected with each other, the second shell comprises a second shell body and a second rotating part which are connected with each other, the first rotating part is rotationally connected with the first rotating groove, and the second rotating part is rotationally connected with the second rotating groove; the rotating axis of the first rotating part and the rotating axis of the second rotating part are collinear, and the direction where the rotating axes are located is perpendicular to the first direction and the second direction.

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 needs, foldable electronic devices are becoming more and more popular among consumers for their large display area and strong portability. At present, the hinge mechanism used in foldable electronic devices usually includes two parallel rotating shafts, and two shells connected to the hinge mechanism correspond to the two rotating shafts one by one and rotate in coordination. However, the number of parts of this hinge mechanism is relatively large, and the processing and assembly difficulties are relatively large. Summary of the invention

[0003] 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 current dual-axis hinge mechanism has a relatively large number of components and is relatively difficult to process and assemble.

[0004] In a first aspect, an embodiment of the present application discloses a hinge mechanism, which includes a base, a first shell and a second shell, wherein: The base is provided with a first rotation groove and a second rotation groove, the first rotation groove and the second rotation groove are stacked and distributed along a first direction, and one side of the two opposite sides of the base distributed along the second direction is provided with a first notch of the first rotation groove, and the other side is provided with a second notch of the second rotation groove, and the first direction and the second direction are perpendicular to each other; The first shell includes a first shell body and a first rotating part connected to each other, and the second shell includes a second shell body and a second rotating part connected to each other, the first rotating part is rotationally connected to the first rotating groove, and the second rotating part is rotationally connected to the second rotating groove, the rotation axes of the first rotating part and the second rotating part are collinear, and the direction of the rotation axis is perpendicular to both the first direction and the second direction.

[0005] In a second aspect, an embodiment of the present application discloses an electronic device, which includes a display screen and the above-mentioned hinge mechanism, and the display screen is connected to both the first shell and the second shell.

[0006] The embodiment of the present application discloses a hinge mechanism, wherein the base is provided with a first rotation groove and a second rotation groove, and the first rotation groove and the second rotation groove are stacked and distributed along the first direction. At the same time, one side is provided with a first notch of the first rotation groove, and the other side is provided with a second notch of the second rotation groove, and the first direction and the second direction are perpendicular to each other. During the assembly of the hinge mechanism, the first rotating part of the first shell is rotationally connected to the first rotation groove, and the second rotating part of the second shell is rotationally connected to the second rotation groove. In this case, the first shell body connected to the first rotating part in the first shell can rotate relative to the base, and the second shell body connected to the second rotating part in the second shell can rotate relative to the base, so that the hinge mechanism has the ability to fold and unfold.

[0007] As described above, the first rotating groove and the second rotating groove are stacked in the first direction, which makes the first rotating groove and the second rotating groove overlap with each other in the second direction, so that the base, and the first shell and the second shell matched with the base occupy a relatively small space as a whole in the second direction, and thus no matter whether the hinge structure is in the unfolded state or the folded state, the size of the hinge mechanism in the second direction is relatively small, and in the hinge mechanism disclosed in the embodiment of the present application, since the number of components used for the mutual cooperation between the devices is relatively small, the difficulty of processing and assembling the entire hinge mechanism can be reduced.

[0008] In addition, by making the rotation axes of the first rotating part and the second rotating part colinear, and making the directions of the rotation axes of the two perpendicular to the first direction and the second direction, it can be ensured that when the hinge mechanism is in a folded state and an unfolded state, the alignment between the side edges of the first shell and the second shell is relatively good, and the display screen can be prevented from being twisted during the unfolding and folding of the hinge mechanism, thereby improving the display effect and service life of the display screen of the electronic device using the hinge mechanism. 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 structural schematic diagram of the hinge mechanism disclosed in the embodiment of the present application in an unfolded state; Figure 2 It is a structural schematic diagram of the hinge mechanism disclosed in the embodiment of the present application in a folded state; Figure 3 It is a structural schematic diagram of the hinge mechanism disclosed in the embodiment of the present application in another direction; Figure 4 for Figure 3A schematic cross-sectional view of the hinge mechanism along the AA direction is shown; Figure 5 for Figure 3 A schematic cross-sectional view of the hinge mechanism along the BB direction is shown; Figure 6 It is an exploded schematic diagram of the hinge mechanism disclosed in the embodiment of the present application; Figure 7 for Figure 6 An enlarged schematic diagram of a part of the structure of the hinge mechanism is shown; Figure 8 is another cross-sectional schematic diagram of the hinge mechanism disclosed in the embodiment of the present application; Fig. 9 for Figure 8 A cross-sectional schematic diagram showing a hinge mechanism in a folded state; Fig.10 for Figure 8 An enlarged schematic diagram of a part of the structure of the hinge mechanism is shown; Fig.11 for Figure 8 An exploded schematic diagram of the hinge mechanism shown; Fig.12 for Figure 8 A schematic structural diagram of the first connecting plate in the hinge mechanism is shown.

[0010] Reference numerals: 100-base, 101-first rotating groove, 102-second rotating groove, 110-first pressure cover, 120-second pressure cover, 130-base, 141-first limiting protrusion, 142-third limiting protrusion, 200-first shell, 210-first shell body, 211-first avoidance groove, 220-first rotating part, 221-first cam surface, 230-second limiting protrusion, 240-first support plate, 250-first connecting plate, 251-first slide groove, 260-first slide rod, 300-second housing, 310-second housing body, 311-second avoidance groove, 320-second rotating part, 321-second cam surface, 330-fourth limiting protrusion, 340-second supporting plate, 350-second connecting plate, 360-second sliding rod, 410-cam member, 411-first cam portion, 412-second cam portion, 420-elastic member, 430-guide shaft, 440-fixing seat, 441-through hole, 900-Display screen. 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 12 As shown, the hinge mechanism disclosed in the embodiment of the present application includes a base 100, a first shell 200 and a second shell 300. 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, the second swing arm and other components 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.

[0015] In the embodiment of the present application, the base 100 is provided with a first rotation groove 101 and a second rotation groove 102, and as Figure 2 As shown, the first rotation groove 101 and the second rotation groove 102 are stacked and distributed along the first direction, and at the same time, one side of the two opposite sides of the base 100 distributed along the second direction is provided with a first notch of the first rotation groove 101, and the other side is provided with a second notch of the second rotation groove 102. Intuitively speaking, the first rotation groove 101 extends from one side of the base 100 to the inside of the base 100, and the second rotation groove 102 extends from the other side of the base 100 to the inside of the base 100, thereby forming two rotation grooves with arc-shaped cross-sections on the base 100, so that the first shell 200 can form a rotational matching relationship with the base 100 through the first rotation groove 101, and correspondingly, the second shell 300 can form a rotational relationship with the base 100 through the second rotation groove 102.

[0016] To this end, in the embodiment of the present application, the first shell 200 includes a first shell body 210 and a first rotating part 220. Generally, the first rotating part 220 is located at one side of the first shell body 210, and the two are connected to each other. Correspondingly, the second shell 300 includes a second shell body 310 and a second rotating part 320. The second rotating part 320 is located at one side of the second shell body 310, and the second shell body 310 and the second rotating part 320 are connected to each other. Of course, the first shell 200 and the second shell 300 can be formed by integral molding or the like, or the first shell body 210, the second shell body 310, the first rotating part 220 and the second rotating part 320 can be processed separately, and after the first rotating part 220 and the second rotating part 320 are rotatably installed in the first rotating groove 101 and the second rotating groove 102 respectively, the first rotating part 220 is fixedly connected to one side of the first shell body 210 by welding or the like, and the second rotating part 320 is fixedly connected to one side of the second shell body 310.

[0017] Furthermore, the shape and size parameters of the first rotating part 220 and the second rotating part 320 need to be adapted to the first rotating groove 101 and the second rotating groove 102 respectively, so that during the process of assembling the hinge mechanism, the first rotating part 220 can be extended into the first rotating groove 101, and the second rotating part 320 can be extended into the second rotating groove 102, thereby ensuring that the first rotating part 220 can be rotatably connected to the first rotating groove 101, and the second rotating part 320 can be rotatably connected to the second rotating groove 102. At the same time, by designing the parameters such as the structure, size and position of the first rotating groove 101 and the second rotating groove 102, the rotation axis of the first rotating part 220 relative to the first rotating groove 101 and the rotation axis of the second rotating part 320 relative to the second rotating groove 102 can be collinear. In this case, the rotation axes of the first shell 200 and the second shell 300 relative to the base 100 are also collinearly arranged, ensuring that the first shell 200 and the second shell 300 can produce relative unfolding and relative folding movements, thereby making the hinge mechanism have a folded state and an unfolded state, so that the electronic device using the hinge mechanism can have both a relatively large display area and good portability. Among them, the rotation axis of the first rotating part 220 and the second rotating part 320 relative to the base 100 is Figure 1 P in.

[0018] Of course, in the process of forming the first rotation groove 101 and the second rotation groove 102, it is necessary to ensure that the direction of the rotation axis of the corresponding first rotation part 220 and the second rotation part 320 is perpendicular to the first direction and the second direction, and at the same time, the first direction and the second direction are also perpendicular to each other. More intuitively, the first direction can be Figure 2 The direction Z in the image, the second direction can be Figure 2The direction X in the figure, the direction of the rotation axis can be Figure 2 In the direction perpendicular to the paper surface.

[0019] In this case, it can be ensured that the relative rotation process between the first shell 200 and the second shell 300 will not interfere with each other. At the same time, when the hinge mechanism is in the unfolded state and the folded state, it can be ensured that the side edges of the first shell 200 and the second shell 300 can be aligned without being relatively staggered, thereby ensuring that the display screen 900 installed on the hinge mechanism will not be twisted and deformed during the folding process, thereby improving the service life of the display screen 900.

[0020] The embodiment of the present application discloses a hinge mechanism, wherein the base 100 is provided with a first rotation groove 101 and a second rotation groove 102, and the first rotation groove 101 and the second rotation groove 102 are stacked and distributed along the first direction. At the same time, one side is provided with a first notch of the first rotation groove 101, and the other side is provided with a second notch of the second rotation groove 102, and the first direction and the second direction are perpendicular to each other. During the assembly of the hinge mechanism, the first rotating portion 220 of the first shell 200 is rotationally connected to the first rotation groove 101, and the second rotating portion 320 of the second shell 300 is rotationally connected to the second rotation groove 102. In this case, the first shell body 210 connected to the first rotating portion 220 in the first shell 200 can rotate relative to the base 100, and the second shell body 310 connected to the second rotating portion 320 in the second shell 300 can rotate relative to the base 100, so that the hinge mechanism has the ability to fold and unfold.

[0021] As described above, the first rotating groove 101 and the second rotating groove 102 are stacked in the first direction, which makes the first rotating groove 101 and the second rotating groove 102 overlap with each other in the second direction, so that the base 100, and the first shell 200 and the second shell 300 matched with the base 100 occupy a relatively small space as a whole in the second direction, and thus, regardless of whether the hinge structure is in the unfolded state or the folded state, the size of the hinge mechanism in the second direction is relatively small, and in the hinge mechanism disclosed in the embodiment of the present application, since the number of components used for the mutual cooperation between devices is relatively small, the difficulty of processing and assembling the entire hinge mechanism can be reduced.

[0022] In addition, by making the rotation axes of the first rotating part 220 and the second rotating part 320 colinear and making the directions of the rotation axes of the two perpendicular to the first direction and the second direction, it can be ensured that when the hinge mechanism is in the folded state and the unfolded state, the alignment between the side edges of the first shell 200 and the second shell 300 is relatively good, and the display screen 900 can be prevented from being twisted during the unfolding and folding of the hinge mechanism, thereby improving the display effect and service life of the display screen 900 of the electronic device using the hinge mechanism.

[0023] In the above embodiment, both the first shell body 210 and the second shell body 310 can be rectangular plate structures, and when the hinge mechanism is applied to the electronic device, both the first shell body 210 and the second shell body 310 can provide support for the display screen 900. In addition, in this case, in order to ensure that when the hinge mechanism is in a folded state, a screen-accommodating space can be formed between the first shell body 210 and the second shell body 310 on the side close to the base 100, in a specific embodiment of the present application, the maximum rotation angle of the first shell 200 relative to the base 100 and the maximum rotation angle of the second shell 300 relative to the base 100 can be slightly greater than 180°.

[0024] Based on this, Figure 1 As shown, when the hinge mechanism is in the unfolded state, the first shell body 210 and the second shell body 310 can be arranged coplanarly on one side surface facing the display screen 900 to provide good support for the display screen 900, while when the hinge mechanism is in the folded state, the side edges of the first shell body 210 and the second shell body 310 away from the display screen 900 can be in contact with each other, and a preset gap can be formed between the side edges of the first shell body 210 and the second shell body 310 close to the display screen 900, thereby providing a relatively large accommodating space for the portion of the display screen 900 close to the base 100 sandwiched between the first shell body 210 and the second shell body 310.

[0025] To put it more intuitively, in the embodiment of the present application, in the hinge mechanism in the folded state, the screen-holding space formed between the first shell body 210, the base 100 and the second shell body 310 is wedge-shaped as a whole, with a relatively large width at the end close to the base 100 and a relatively small width at the end away from the base 100, so as to utilize the wider area to accommodate the most folded part of the display screen 900.

[0026] In order to further increase the screen space provided by the hinge mechanism for the display screen 900, as Figure 7-Figure 9As shown, the first shell body 210 can be provided with a first avoidance groove 211, and accordingly, the first avoidance groove 211 is used to accommodate the corresponding components in the hinge mechanism. In detail, the first shell 200 also includes a first support plate 240, a first connecting plate 250 and a first slide bar 260, and the first support plate 240, the first connecting plate 250 and the first slide bar 260 are all arranged in the first avoidance groove 211.

[0027] Among them, the first side of the first support plate 240 is rotatably connected to the groove wall of the first avoidance groove 211, and the second side of the first support plate 240 is rotatably connected to the first connecting plate 250. Specifically, the first support plate 240 is a plate-shaped structure as a whole, and as mentioned above, the first support plate 240 is connected between the first shell body 210 and the first connecting plate 250. For this purpose, taking the hinge mechanism in the unfolded state as an example, the first support plate 240 extends along the second direction as a whole, and in a specific embodiment of the present application, the side edges of the opposite sides of the first support plate 240 can be rotatably connected to the groove wall of the first avoidance groove 211 and the first connecting plate 250 through an axial hole-like rotatable connection structure.

[0028] The first connecting plate 250 is used to bridge the first supporting plate 240 and the first sliding rod 260. In detail, the first connecting plate 250 is provided with a first sliding groove 251, and the first sliding rod 260 is slidably installed in the first sliding groove 251, and the other end of the first sliding rod 260 is rotatably connected to the base 100, so that the first shell body 210 can form another matching relationship with the base 100 through the first supporting plate 240, the first connecting plate 250 and the first sliding rod 260 that cooperate with each other, and by designing the parameters such as the structure, size and position relationship of the first supporting plate 240, the first connecting plate 250 and the first sliding rod 260, when the hinge mechanism is in a folded state, the space formed between the first shell body 210 and the base 100 can be larger, thereby further preventing the display screen 900 from being squeezed by the first shell 200. At the same time, when the hinge mechanism is in an unfolded state, the first supporting plate 240 can also provide support for the display screen 900, ensuring that the overall support effect of the display screen 900 is still relatively good.

[0029] In detail, in an embodiment of the present application, when the hinge mechanism is in an unfolded state, the screen support surface of the first support plate 240 is coplanar with the screen support surface of the first shell body 210, and when the hinge mechanism is in a folded state, the screen support surface of the first support plate 240 is inclined relative to the screen support surface of the first shell body 210, and the second side edge of the first support plate 240 and the first connecting plate 250 are both located on the side of the screen support surface of the first shell body 210 that is away from its screen support side.

[0030] As described above, the parameters such as the rotational connection position between the first support plate 240 and the groove wall of the first avoidance groove 211, the position of the first connecting plate 250 relative to the first shell body 210, the extension direction of the first slide groove 251 on the first connecting plate 250, and the rotational connection position between the first slide bar 260 and the base 100 can be designed so that when the hinge mechanism is in the unfolded state, the screen support surfaces of the first support plate 240 and the first shell body 210 facing the display screen 900 can be arranged in the same plane; accordingly, when the first shell body 210 is rotated to the folded state relative to the base 100, the first support plate 240 can drive the first connecting plate 250 to rotate together, and then drive the first slide bar 260 to rotate, so that the first connecting plate 250 moves in the direction away from the display screen 900, that is, the first connecting plate 250 retreats relative to the display screen 900 to drive the first connecting plate 250 and the first slide bar 260 to avoid the display screen 900 together, so that the screen space formed by the entire first shell 200 and the base 100 is relatively larger. Furthermore, the first avoidance groove 211 is located on one side of the first shell body 210 close to the base 100, so that the aforementioned screen space can correspond to the most folded part of the display screen 900, thereby reducing the folding degree of the display screen 900, weakening the crease of the display screen 900, and improving the display effect and service life of the display screen 900.

[0031] As described above, by providing the first avoidance groove 211 on the first shell body 210, and by using the mutually matched first support plate 240, first connecting plate 250 and first sliding rod 260, another matching relationship is formed between the first shell body 210 and the base 100, so that when the hinge mechanism is in the folded state, the accommodation space of the display screen 900 can be increased, and when the hinge mechanism is in the unfolded state, it can be ensured that the first support plate 240 provided in the first avoidance groove 211 can still provide good support for the display screen 900. To this end, in a further embodiment of the present application, the second shell body 310 can also be designed with reference to the above structure of the first shell body 210, so that when the hinge mechanism is in the folded state, a relatively larger screen accommodation space can be formed between the second shell body 310 and the base 100, and when the hinge mechanism is in the unfolded state, the second support plate 340 corresponding to the second shell body 310 can provide good support for the display screen 900.

[0032] In detail, the second shell body 310 is provided with a second avoidance groove 311, and the second shell 300 further includes a second support plate 340, a second connecting plate 350 and a second slide bar 360. The second support plate 340, the second connecting plate 350 and the second slide bar 360 are all arranged in the second avoidance groove 311. Similarly, the first side of the second support plate 340 can be rotatably connected to the groove wall of the second avoidance groove 311 through a shaft hole type rotating structure, and the second side of the second support plate 340 can be rotatably connected to the first connecting plate 250; the second connecting plate 350 is provided with a second slide groove, the second slide bar 360 is slidably installed in the second slide groove, and the other end of the second slide bar 360 is rotatably connected to the base 100.

[0033] Accordingly, by designing the rotational connection position of the second support plate 340 and the groove wall of the second avoidance groove 311, the position of the second connecting plate 350 relative to the second shell body 310, the extension direction of the second slide groove on the second connecting plate 350, and the rotational connection position between the second slide bar 360 and the base 100, the screen support surface of the second support plate 340 can be made coplanar with the screen support surface of the second shell body 310 when the hinge mechanism is in the unfolded state, and the second shell body 310 drives the second support plate 340 relative to the base 100. During the process of rotating from the hinge mechanism to the folded state, the second connecting plate 350 moves away from the display screen 900 to avoid the display screen 900, and the second side edge of the second supporting plate 340 and the first sliding bar 260 both avoid the display screen 900, and then when the hinge mechanism is in the folded state, the screen supporting surface of the second supporting plate 340 is inclined relative to the screen supporting surface of the second shell body 310, and the second side edge of the second supporting plate 340 and the second connecting plate 350 are both located on the side of the screen supporting surface of the second shell body 310 away from its screen supporting side.

[0034] When the above technical solution is adopted, when the hinge mechanism is in a folded state, the second side of the second support plate 340 avoids the display screen 900, thereby achieving the purpose of increasing the screen-holding space formed between the second shell body 310 and the base 100, and overlapping with the screen-holding space between the first shell body 210 and the base 100, so that the screen-holding space formed by the hinge mechanism is in the shape of a water drop as a whole, which can greatly reduce the folding degree of the display screen 900, thereby greatly weakening the crease of the display screen 900, and improving the display effect and service life of the display screen 900.

[0035] In addition, there can be multiple first slide bars 260 and second slide bars 360. In this case, the number of first slide grooves 251 and second slide grooves provided on the first connecting plate 250 and the second connecting plate 350 is also multiple, and they correspond one-to-one with the multiple first slide bars 260 and the multiple second slide bars 360 respectively.

[0036] In order to make the hinge mechanism disclosed in the embodiment of the present application have a damping feeling, so that the hinge mechanism has the ability of hovering, etc., in a specific embodiment of the present application, the hinge mechanism may also include an elastic member 420. In the direction of the rotation axis of the first rotating part 220, by making one end of the first rotating part 220 abut against the base 100, and making the other end of the first rotating part 220 elastically abut against the elastic member 420, the elastic member 420 can be used to provide the first rotating part 220 with an extrusion force along the direction of the aforementioned rotation axis, so that a friction relationship is formed between the end faces of the first rotating part 220 and the base 100 facing each other, thereby making the first rotating part 220 have a damping effect during the process of rotating relative to the base 100.

[0037] Considering that in the technical solution where the first rotating part 220 directly cooperates with the elastic member 420, the stability of the elastic member 420 is relatively poor, and it is easy to be deformed by the movement of the first rotating part 220, thereby causing problems such as unstable damping effect. To this end, in a further embodiment of the present application, the hinge mechanism also includes a cam member 410, and the other end of the first rotating part 220 away from the base 100 can be made to form a cam matching relationship with the cam member 410. Accordingly, one end of the elastic member 420 can be elastically abutted against the side of the cam member 410 away from the first rotating part 220, and the other end of the elastic member 420 can be relatively fixed with the base 100, so that the elastic member 420 can indirectly form an elastic extrusion matching relationship with the first rotating part 220 by using the cam member 410. At the same time, the cam member 410 and the elastic member 420 only have a matching relationship of relative movement or integral movement in the direction where the rotation axis is located, and are relatively fixed in other directions, so that the stability of the elastic member 420 is relatively better.

[0038] Furthermore, when the cam member 410 is provided, the first rotating portion 220 can form a cam matching relationship with the cam member 410, so that the first rotating portion 220 and the cam member 410 can generate relative movement in the direction of the aforementioned rotation axis, thereby further squeezing the elastic member 420, enhancing the elastic effect of the elastic member 420, and making the damping effect of the hinge mechanism relatively stronger, which can further improve the stability of the hinge mechanism when it is in a hovering state.

[0039] More specifically, a slideway or other structure can be provided at a corresponding position on the base 100 so that the cam member 410 can form a sliding fit relationship with the base 100 in the direction of the aforementioned rotation axis, which can improve the assembly stability between the cam member 410 and the base 100, and can improve the fit stability between the cam member 410 and the first rotating part 220. In addition, the cam member 410 can be a block structure, and a cam surface is provided on a side surface facing the first rotating part 220. Of course, since the first rotating part 220 is an arc-shaped structural member as a whole, the cam surface provided on the cam member 410 can also be an arc-shaped structure as a whole to correspond to the first rotating part 220. In other embodiments of the present application, the cam member 410 can also be an arc-shaped structure as a whole in accordance with the structure of the first rotating part 220. In this case, by forming a cam structure on one end surface of the cam member 410, it can be ensured that the cam surface on the cam member 410 can be matched with the first rotating part 220.

[0040] Similarly, in order to make the second housing 300 also have a damping effect, the cam member 410 and the elastic member 420 may also be disposed corresponding to the second rotating portion 320 of the second housing 300 .

[0041] In another embodiment of the present application, the cam member 410 may include a first cam portion 411 and a second cam portion 412, and the first cam portion 411 and the second cam portion 412 are elastically matched with the elastic member 420, and the first cam portion 411 is cam-matched with the first cam surface 221 of the first rotating portion 220, and the second cam portion 412 is cam-matched with the second cam surface 321 of the second rotating portion 320. In this case, by using the same elastic member 420, the first rotating portion 220 and the second rotating portion 320 can both produce a damping effect, thereby reducing the number of components in the hinge mechanism, and reducing costs and assembly difficulties. In addition, when the above technical solution is adopted, since the first shell 200 and the second shell 300 are both damped with the same elastic member 420, and then when other conditions are equivalent, the damping effect generated by the first shell 200 and the second shell 300 relative to the base 100 is also basically the same, which can improve the consistency and symmetry of the entire hinge mechanism, thereby improving the user experience of the product.

[0042] Specifically, as described above, the cam member 410 may be an arc-shaped structural member so as to cooperate with the first rotating portion 220 of the arc-shaped structure. For this reason, in the embodiment of the present application, Figure 7As shown, the first cam portion 411 and the second cam portion 412 can both be arc-shaped structural members, and both can be formed of materials such as metal. At the same time, the two can be formed into an integral structure by fixing one end of the two away from the first rotating portion 220 (and the second rotating portion 320) to each other. Accordingly, the elastic member 420 can also abut against the end surface of the first cam portion 411 and the second cam portion 412 away from the first rotating portion 220 (and the second rotating portion 320) to provide elastic damping for the two.

[0043] In order to further improve the stability of the elastic member 420, as Figure 7 and Figure 6 As shown, the hinge mechanism disclosed in the embodiment of the present application may also include a guide shaft 430 and a fixed seat 440, wherein the first cam portion 411 and the second cam portion 412 are both fixedly connected to the first end of the guide shaft 430, the second end of the guide shaft 430 is inserted into the through hole 441 of the fixed seat 440, and in the direction of the rotation axis, the guide shaft 430 and the fixed seat 440 are movably matched, the elastic member 420 is sleeved on the guide shaft 430, and the elastic member 420 is elastically squeezed between the first end of the guide shaft 430 and the fixed seat 440.

[0044] That is, in the embodiment of the present application, a guide shaft 430 is additionally provided to provide a limiting and guiding function for the elastic member 420. At the same time, by reusing the guide shaft 430, a sliding fit relationship is formed between the guide shaft 430 and the fixed seat 440 in the direction of the rotation axis, thereby achieving the purpose of enhancing the assembly stability between the cam member 410 and the base 100. Of course, during the processing, the guide shaft 430 and the cam member 410 including the first cam portion 411 and the second cam portion 412 can be formed in an integral molding manner, which can reduce the processing difficulty on the one hand, and improve the connection reliability between the three on the other hand. In addition, the guide shaft 430 can be a cylindrical structure as a whole, and the through hole 441 of the fixed seat 440 can also be a circular hole, which can reduce the difficulty of fitting between the guide shaft 430 and the fixed seat 440, and can improve the stability of the sliding fit relationship between the two. Of course, the end of the guide shaft 430 connected to the cam member 410 can be provided with a step surface to support the elastic member 420, or one end of the elastic member 420 can be abutted against the base 100, and the other end of the elastic member 420 can be extended to the end of the guide shaft 430 to directly abut against the end surface of the cam member 410 away from the first rotating part 220 (and the second rotating part 320).

[0045] As described above, the assembly stability between the cam member 410 and the base 100 can be improved by providing a slideway extending in the direction of the rotation axis on the base 100 so that the cam member 410 can form a sliding fit relationship with the base 100. In another embodiment of the present application, at least a portion of the first cam portion 411 can be located in the first rotation groove 101, and at least a portion of the second cam portion 412 can be located in the second rotation groove 102, so that the cam member 410 can directly form a relatively stable sliding fit relationship with the base 100 in the direction of the aforementioned rotation axis. In this case, there is no need to further provide the above-mentioned slideway and other structures on the base 100, and the first rotation groove 101 and the second rotation groove 102 can be used to provide a relatively good limiting effect for the cam member 410, thereby improving the matching stability between the cam member 410 and the first rotation portion 220 and the second rotation portion 320.

[0046] As described above, the first shell 200 and the second shell 300 are rotatably connected to the base 100 through the first rotating part 220 and the second rotating part 320 respectively, and the first rotating part 220 and the second rotating part 320 are both arc-shaped structural parts, so that the rotation axes of the first rotating part 220 and the second rotating part 320 stacked in the first direction can be collinear, and then, in order to improve the stability of the rotational matching relationship between the first shell 200 and the second shell 300 and the base 100, in the embodiment of the present application, in the direction where the rotation axis is located, the first rotating part 220 is provided at the opposite ends of the first shell body 210, and the second rotating part 320 is provided at the opposite ends of the second shell body 310. Of course, the base 100 is also correspondingly provided with a first rotating groove 101 and a second rotating groove 102 at the opposite ends in the direction where the aforementioned rotation axis is located, so that the rotational matching relationship between the first shell 200 and the second shell 300 and the base 100 is more stable.

[0047] Furthermore, in a specific embodiment of the present application, each first rotating part 220 and each second rotating part 320 can be correspondingly provided with a cam member 410 and an elastic member 420, so that a separate damping matching relationship can be formed between each first rotating part 220 and each second rotating part 320 and the base 100, so that the overall damping effect of the first shell 200 and the second shell 300 is better.

[0048] As described above, the base 100 is provided with the first rotation groove 101 and the second rotation groove 102, and the first shell body 210 and the first rotating part 220 can be formed separately by adopting a split molding method, and then after the first rotating part 220 is installed in the first rotation groove 101, the first rotating part 220 is fixedly connected with the first shell body 210. Correspondingly, the second shell 300 can also be formed by a split molding method, and after the second rotating part 320 is installed in the second rotation groove 102, the second rotating part 320 is fixedly connected with the second shell body 310 as a whole.

[0049] In another embodiment of the present application, the base 100 may include a first gland 110, a second gland 120 and a seat body 130 which are separately formed, wherein the first gland 110 and the second gland 120 are respectively fixed to opposite sides of the seat body 130, and a first rotation groove 101 is formed between the first gland 110 and the seat body 130, and a second rotation groove 102 is formed between the second gland 120 and the seat body 130. In this case, the first shell 200 and the second shell 300 can be formed in an integrally formed manner to ensure that the connection reliability between the first rotating part 220 and the first shell body 210, and between the second rotating part 320 and the second shell body 310 is relatively high. At the same time, for the first gland 110, the second gland 120 and the seat body 130, screws and other connecting parts can be used to ensure that the entire base 100 formed has a relatively high structural strength and stability.

[0050] Furthermore, when the base 100 adopts the above structure, the rotation range of the first rotating part 220 and the second rotating part 320 can be limited to improve the reliability of the hinge structure. Figure 4 and Figure 5 As shown, a first limiting protrusion 141 may be provided on one of the seat body 130 and the first rotating part 220, and a second limiting protrusion 230 may be provided on the other. By designing the setting positions of the first limiting protrusion 141 and the second limiting protrusion 230, when the hinge mechanism is in a folded state, the first limiting protrusion 141 and the second limiting protrusion 230 can be limitedly matched in the rotation direction of the first rotating part 220, thereby limiting the first rotating part 220 from further folding relative to the base 100.

[0051] Correspondingly, by setting a third limiting protrusion 142 on one of the base body 130 and the second rotating part 320, and setting a fourth limiting protrusion 330 on the other, and designing the positions of the third limiting protrusion 142 and the fourth limiting protrusion 330, when the hinge mechanism is in a folded state, the third limiting protrusion 142 and the fourth limiting protrusion 330 can be limitedly matched in the rotation direction of the second rotating part 320, thereby limiting the second rotating part 320 from further folding relative to the base 100, so that the hinge mechanism has a folding end position, preventing the first shell 200 and the second shell 300 from being over-folded and damaging the display screen 900.

[0052] Specifically, the first limiting protrusion 141 can be formed on the base 130 and formed integrally with the base 130, and is generally located at the first notch. Correspondingly, the second limiting protrusion 230 is located at the end of the first rotating portion 220. In the first direction, the first limiting protrusion 141 is located on the side of the base 130 facing the first rotating portion 220. Correspondingly, the second limiting protrusion 230 is located on the side of the first rotating portion 220 facing the base 130, so as to ensure that the first limiting protrusion 141 can form a limiting matching relationship with the second limiting protrusion 230. Similarly, the side of the base 130 facing the second rotating portion 320 is provided with a third limiting protrusion 142, and the side of the second rotating portion 320 facing the base 130 can be provided with a fourth limiting protrusion 330, the third limiting protrusion 142 is generally located at the second notch, and the fourth limiting protrusion 330 is located at the end of the second rotating portion 320.

[0053] Of course, for the unfolded state of the hinge structure, since the display screen 900 is connected to both the first shell 200 and the second shell 300 when the hinge mechanism is applied to the electronic device, the first shell 200 and the second shell 300 are basically not over-expanded under the limiting effect of the display screen 900. Optionally, by designing the extension range of the first rotating part 220, the second rotating part 320, the first rotating groove 101 and the second rotating groove 102, when the hinge mechanism is in the unfolded state, the end of the first rotating part 220 can be rotated to the end of the first rotating groove 101, and the end of the second rotating part 320 can be rotated to the end of the second rotating groove 102, thereby achieving the purpose of limiting the unfolded state of the first shell 200 and the second shell 300.

[0054] 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 display screen 900 and any of the above hinge mechanisms. During the assembly process of the electronic device, the display screen 900 is connected to both the first shell 200 and the second shell 300, so that when the first shell 200 and the second shell 300 rotate relative to the base 100, the display screen 900 can be deformed and the display screen 900 can be switched between a folded state and an unfolded state.

[0055] 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.

[0056] 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 shell (200) and a second shell (300), wherein: The base (100) is provided with a first rotation groove (101) and a second rotation groove (102), the first rotation groove (101) and the second rotation groove (102) are stacked and distributed along a first direction, and one side of two opposite sides of the base distributed along a second direction is provided with a first notch of the first rotation groove (101), and the other side is provided with a second notch of the second rotation groove (102), and the first direction and the second direction are perpendicular to each other; The first shell (200) includes a first shell body (210) and a first rotating part (220) which are connected to each other, and the second shell (300) includes a second shell body (310) and a second rotating part (320) which are connected to each other, the first rotating part (220) is rotationally connected to the first rotating groove (101), and the second rotating part (320) is rotationally connected to the second rotating groove (102), the rotation axes of the first rotating part (220) and the second rotating part (320) are collinear, and the direction of the rotation axis is perpendicular to both the first direction and the second direction.

2. The hinge mechanism according to claim 1, characterized in that: The first shell body (210) is provided with a first avoidance groove (211), and the first shell (200) further comprises a first support plate (240), a first connecting plate (250) and a first sliding rod (260) which are all arranged in the first avoidance groove (211), a first side edge of the first support plate (240) is rotatably connected to a groove wall of the first avoidance groove (211), a second side edge of the first support plate (240) is rotatably connected to the first connecting plate (250), the first connecting plate (250) is provided with a first sliding groove (251), the first sliding rod (260) is slidably installed in the first sliding groove (251), and the other end of the first sliding rod (260) is rotatably connected to the base (100); When the hinge mechanism is in an unfolded state, the screen support surface of the first support plate (240) is coplanar with the screen support surface of the first shell body (210); when the hinge mechanism is in a folded state, the screen support surface of the first support plate (240) is inclined relative to the screen support surface of the first shell body (210), and the second side edge of the first support plate (240) and the first connecting plate (250) are both located on the side of the screen support surface of the first shell body (210) that is away from its screen support side.

3. The hinge mechanism according to claim 2, characterized in that: The second shell body (310) is provided with a second avoidance groove (311), and the second shell (300) further comprises a second support plate (340), a second connecting plate (350) and a second slide bar (360) which are all arranged in the second avoidance groove (311), a first side edge of the second support plate (340) is rotatably connected to the groove wall of the second avoidance groove (311), a second side edge of the second support plate (340) is rotatably connected to the first connecting plate (250), the second connecting plate (350) is provided with a second slide groove, the second slide bar (360) is slidably installed in the second slide groove, and the other end of the second slide bar (360) is rotatably connected to the base (100); When the hinge mechanism is in an unfolded state, the screen support surface of the second support plate (340) is coplanar with the screen support surface of the second shell body (310); when the hinge mechanism is in a folded state, the screen support surface of the second support plate (340) is inclined relative to the screen support surface of the second shell body (310), and the second side edge of the second support plate (340) and the second connecting plate (350) are both located on the side of the screen support surface of the second shell body (310) that is away from its screen support side.

4. The hinge mechanism according to claim 1, characterized in that: It also includes a cam member (410) and an elastic member (420); in the direction of the rotation axis, one end of the first rotating part (220) is abutted against the base (100), and the other end of the first rotating part (220) is cam-matched with the cam member (410); one end of the elastic member (420) is elastically abutted against a side of the cam member (410) that is away from the first rotating part (220), and the other end of the elastic member (420) is relatively fixed to the base (100).

5. The hinge mechanism according to claim 4, characterized in that: The cam member (410) comprises a first cam portion (411) and a second cam portion (412); the first cam portion (411) and the second cam portion (412) are both elastically matched with the elastic member (420); the first cam portion (411) is cam-matched with the first rotating portion (220), and the second cam portion (412) is cam-matched with the second rotating portion (320).

6. The hinge mechanism according to claim 5, characterized in that: The invention also comprises a guide shaft (430) and a fixing seat (440), wherein the first cam portion (411) and the second cam portion (412) are both fixedly connected to the first end of the guide shaft (430), the second end of the guide shaft (430) is inserted into a through hole (441) of the fixing seat (440), and in the direction of the rotation axis, the guide shaft (430) and the fixing seat (440) are movably matched, and the elastic member (420) is sleeved on the guide shaft (430), and the elastic member (420) is elastically squeezed between the first end of the guide shaft (430) and the fixing seat (440).

7. The hinge mechanism according to claim 5, characterized in that: At least a portion of the first cam portion (411) is located in the first rotation groove (101), and at least a portion of the second cam portion (412) is located in the second rotation groove (102).

8. The hinge mechanism according to claim 5, characterized in that: In the direction of the rotation axis, the first rotating parts (220) are provided at two opposite ends of the first shell body (210), and the second rotating parts (320) are provided at two opposite ends of the second shell body (310), and each of the first rotating parts (220) and each of the second rotating parts (320) are correspondingly provided with the cam part (410) and the elastic part (420).

9. The hinge mechanism according to claim 1, characterized in that: The base (100) comprises a first pressure cover (110), a second pressure cover (120) and a seat body (130) which are formed separately, the first pressure cover (110) and the second pressure cover (120) being respectively fixed to opposite sides of the seat body (130), and the first rotation groove (101) is formed between the first pressure cover (110) and the seat body (130), and the second rotation groove (102) is formed between the second pressure cover (120) and the seat body (130).

10. The hinge mechanism according to claim 9, characterized in that: A first limiting protrusion (141) is provided on one of the seat body (130) and the first rotating part (220), and a second limiting protrusion (230) is provided on the other, and when the hinge mechanism is in a folded state, the first limiting protrusion (141) cooperates with the second limiting protrusion (230) in a limiting position in the rotation direction of the first rotating part (220); A third limiting protrusion (142) is provided on one of the seat body (130) and the second rotating part (320), and a fourth limiting protrusion (330) is provided on the other. When the hinge mechanism is in a folded state, the third limiting protrusion (142) cooperates with the fourth limiting protrusion (330) in a limiting position in the rotation direction of the second rotating part (320).

11. An electronic device, characterized in that: It comprises a display screen (900) and the hinge mechanism according to any one of claims 1 to 10, wherein the display screen (900) is connected to both the first shell (200) and the second shell (300).

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