Hinge assembly and electronic equipment

Abstract

The invention discloses a hinge assembly and electronic equipment, and belongs to the technical field of electronic equipment. The hinge assembly comprises a base, a first swing arm and a frame body connecting piece. The first end of the first swing arm is provided with a rotary connecting part, the rotary connecting part is rotatably connected with the base, the second end of the first swing arm is provided with a sliding connecting part, the frame body connecting piece is provided with a first sliding groove, and the sliding connecting part is slidably connected with the first sliding groove; wherein a first cam assembly is arranged on the sliding connection part, a second cam part is arranged on the side wall of the first sliding groove, in the process that the first swing arm rotates relative to the base, the sliding connection part slides relative to the first sliding groove, and the first cam assembly and the second cam part interact to provide damping for rotation of the first swing arm 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 assembly and an electronic equipment. Background Art

[0002] In the related art, a folding machine is unfolded or folded by a hinge, and a torsion mechanism needs to be superimposed in the space at the bottom of the hinge to position the electronic device when the electronic device is in the unfolded state or folded state. However, the torsion mechanism is arranged in the space at the bottom of the hinge, and the torsion mechanism occupies the space at the bottom of the hinge, increasing the thickness of the entire hinge, which is not conducive to the thinness of the electronic device. Summary of the invention

[0003] The present application aims to provide a hinge assembly and an electronic device to solve the problem in the related art that the torsion mechanism occupies a large space of the hinge assembly and affects the thickness of the electronic device.

[0004] In view of this, the first aspect of the present application provides a hinge assembly, which includes a base, a first swing arm and a frame connecting member. A rotating connection portion is provided at the first end of the first swing arm, which is rotatably connected to the base, a sliding connection portion is provided at the second end of the first swing arm, a first slide groove is provided on the frame connecting member, and the sliding connection portion is slidably connected to the first slide groove; wherein a first cam assembly is provided on the sliding connection portion, and a second cam portion is provided on the side wall of the first slide groove. When the first swing arm rotates relative to the base, the sliding connection portion slides relative to the first slide groove, and the first cam assembly and the second cam portion interact with each other to provide damping for the rotation of the first swing arm relative to the base.

[0005] The hinge assembly proposed in the present application includes a base, a first swing arm and a frame connecting member. The first end of the first swing arm is provided with a rotating connection part, which is rotatably connected with the base through the rotating connection part, so that the first swing arm can rotate freely relative to the base. The second end of the first swing arm is provided with a sliding connection part, and the frame connecting member is provided with a first slide groove, and the sliding connection part is arranged in the first slide groove, so that the sliding connection part can slide in the first slide groove. The sliding connection part is provided with a first cam assembly, and the side wall of the first slide groove is provided with a second cam part. During the rotation of the first swing arm relative to the base, the sliding connection part can slide in the first slide groove. When the sliding connection part slides relative to the first slide groove, the first cam assembly of the sliding connection part and the second cam part of the first slide groove interact with each other, that is, friction is generated between the first cam assembly and the inner wall of the first slide groove, so that the first swing arm has damping when sliding, thereby providing damping for the first swing arm to rotate relative to the base. By providing damping when the first swing arm rotates relative to the base, the torsion mechanism placed in the bottom space of the hinge assembly is transferred to the first swing arm, and the bottom of the hinge assembly no longer needs to be provided with a torsion mechanism, which reduces the occupation of the bottom space of the hinge assembly by the torsion mechanism, thereby reducing the thickness of the hinge assembly, which is conducive to the thinness of the product. The occupation of the bottom space of the hinge assembly by the torsion mechanism is reduced, and the screen space of the product can be increased, thereby improving the reliability of the product. At the same time, the torsion mechanism in the bottom space of the hinge assembly is replaced by the first swing arm, the number of components at the bottom of the hinge assembly is reduced, the internal structure of the product is simplified, and the reliability of the hinge assembly area is higher. Even when the product falls, due to the simple structure of the hinge assembly and the small number of components, the risk of components falling off is reduced, thereby improving the stability of the hinge assembly, improving the reliability of the product, and enhancing the user experience.

[0006] The second aspect of the present application provides an electronic device, comprising a hinge assembly and a frame as in any one of the above technical solutions. The number of frames is at least two, and the at least two frames are respectively connected to at least two frame connectors; so that the electronic device can switch between an unfolded state and a folded state.

[0007] In this technical solution, the electronic device has all the beneficial effects of the hinge assembly of any one of the above technical solutions. At the same time, the electronic device also has at least two frames, and the at least two frames are respectively connected to at least two frame connectors, so that the electronic device can be switched between an unfolded state and a folded state. The first swing arm has damping when sliding, so that the at least two frame connectors have damping during the unfolding or folding process, and play a positioning role in the unfolded state or folded state of the frame.

[0008] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0010] Figure 1 is a schematic diagram of an electronic device according to an embodiment of the present application;

[0011] Figure 2 is a schematic diagram of a hinge assembly according to an embodiment of the present application;

[0012] Figure 3 is one of the exploded views of the hinge assembly according to an embodiment of the present application;

[0013] Figure 4 is one of the exploded views of the first swing arm according to an embodiment of the present application;

[0014] Figure 5 is a second exploded view of the hinge assembly according to an embodiment of the present application;

[0015] Figure 6 is a schematic diagram of cooperation between the first cam portion and the second cam portion when the electronic device according to an embodiment of the present application is in a folded state;

[0016] Figure 7 is a schematic diagram of cooperation between the first cam portion and the second cam portion when the electronic device according to an embodiment of the present application is in an unfolded state;

[0017] Figure 8 is a cross-sectional view of an electronic device (in a folded state) according to an embodiment of the present application;

[0018] Fig. 9 is a cross-sectional view of a hinge assembly (in a folded state) according to an embodiment of the present application;

[0019] Fig.10 This is the second exploded view of the first swing arm according to the embodiment of the present application.

[0020] Reference numerals:

[0021] 100 hinge assembly, 200 base, 300 frame connecting part, 302 first slide groove, 304 second cam portion, 306 third wall, 308 fourth wall, 310 notch, 410 second swing arm, 420 first swing arm, 422 rotating connecting part, 424 sliding connecting part, 426 first end of the first swing arm, 428 second end of the first swing arm, 430 first cam assembly, 432 elastic member, 434 slider, 436 body, 438 first cam portion, 440 first wall, 442 second wall, 444 second slide groove, 446 third protrusion, 500 electronic device, 502 frame, 504 first end of the elastic member, 506 second end of the elastic member, 508 notch of the second slide groove. DETAILED DESCRIPTION

[0022] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0023] Refer to the following Figures 1 to 10 A hinge assembly 100 and an electronic device 500 according to some embodiments of the present application are described.

[0024] In some embodiments of the present application, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the hinge assembly 100 includes a base 200, a first swing arm 420 and a frame connecting member 300. A rotating connecting portion 422 is provided at a first end 426 of the first swing arm 420, and the rotating connecting portion 422 is rotatably connected to the base 200. A sliding connecting portion 424 is provided at a second end 428 of the first swing arm 420. A first slide groove 302 is provided on the frame connecting member 300, and the sliding connecting portion 424 is slidably connected to the first slide groove 302; wherein, a first cam assembly 430 is provided on the sliding connecting portion 424, and a second cam portion 304 is provided on the side wall of the first slide groove 302. When the first swing arm 420 rotates relative to the base 200, the sliding connecting portion 424 slides relative to the first slide groove 302, and the first cam assembly 430 and the second cam portion 304 interact with each other to provide damping for the rotation of the first swing arm 420 relative to the base 200.

[0025] The hinge assembly 100 proposed in the present application includes a base 200, a first swing arm 420 and a frame connecting member 300. The first end 426 of the first swing arm 420 is provided with a rotating connection portion 422, which is rotatably connected to the base 200 through the rotating connection portion 422, so that the first swing arm 420 can rotate freely relative to the base 200. The second end 428 of the first swing arm 420 is provided with a sliding connection portion 424, and the frame connecting member 300 is provided with a first slide groove 302. The sliding connection portion 424 is arranged in the first slide groove 302, so that the sliding connection portion 424 can slide in the first slide groove 302. The sliding connection portion 424 is provided with a first cam assembly 430, and the side wall of the first slide groove 302 is provided with a second cam portion 304. When the first swing arm 420 rotates relative to the base 200, the sliding connection portion 424 can slide in the first slide groove 302. When the sliding connection part 424 slides relative to the first slide groove 302, the first cam assembly 430 of the sliding connection part 424 and the second cam part 304 of the first slide groove 302 interact with each other, that is, friction is generated between the first cam assembly 430 and the inner wall of the first slide groove 302, so that the first swing arm 420 has damping when sliding, and then provides damping when the first swing arm 420 rotates relative to the base 200. The damping when the first swing arm 420 rotates relative to the base 200 makes the frame connecting member 300 have damping during the unfolding or folding process, and the unfolded state or folded state of the frame 502 is positioned. The torsion mechanism placed in the bottom space of the hinge assembly 100 is transferred to the first swing arm 420, and the bottom of the hinge assembly 100 does not need to be provided with a torsion mechanism, which reduces the occupation of the bottom space of the hinge assembly 100 by the torsion mechanism, and then the thickness of the hinge assembly 100 can be reduced, which is conducive to the thinness of the product. The space occupied by the torsion mechanism at the bottom of the hinge assembly 100 is reduced, and the screen space of the product can be increased, thereby improving the reliability of the product. At the same time, the torsion mechanism at the bottom of the hinge assembly 100 is replaced by the first swing arm 420, the number of components at the bottom of the hinge assembly 100 is reduced, the internal structure of the product is simplified, and the reliability of the hinge assembly 100 area is higher. Even when the product falls, the hinge assembly 100 has a simple structure and a small number of components, which reduces the risk of components falling off, thereby improving the stability of the hinge assembly 100, improving the reliability of the product, and enhancing the user experience.

[0026] Furthermore, the first cam assembly 430 proposed in the present application is connected to the first swing arm 420 and abuts against the inner wall of the first slide slot 302. The inner wall of the first slide slot 302 limits the first cam assembly 430 by abutting against the inner wall of the first slide slot 302. When the first cam assembly 430 slides along the first slide slot 302, the motion trajectory will not deviate, thereby improving the reliability of the frame connector 300 when it is unfolded or folded. At the same time, the first cam assembly 430 abuts against the inner wall of the first slide slot 302. During the sliding process, there is friction between the first cam assembly 430 and the inner wall of the first slide slot 302, so that the sliding of the first swing arm 420 acts as a torsion force, thereby improving the opening and closing feel of the frame connector 300 when it is unfolded or folded, and improving the user experience.

[0027] Furthermore, the present application sets the first swing arm 420 as a sliding connection, and sets the first cam assembly 430 on the first swing arm 420. The first swing arm 420 replaces the torsion mechanism in the bottom space of the hinge assembly 100, thereby reducing the number of components at the bottom of the hinge assembly 100, thereby reducing the production cost of the hinge assembly 100, and also reducing the installation process of the hinge assembly 100, thereby improving the production efficiency of the product and making the product more competitive.

[0028] Furthermore, the present application sets the first swing arm 420 as a sliding connection, and sets the first cam assembly 430 on the first swing arm 420. The first swing arm 420 replaces the torque mechanism in the bottom space of the hinge assembly 100, reduces the number of components at the bottom of the hinge assembly 100, reduces the difficulty of subsequent maintenance, and also reduces the cost of replacing components in the subsequent period, thereby providing a guarantee for after-sales service and making the product more competitive.

[0029] Furthermore, the present application sets the first swing arm 420 as a sliding connection, and sets the first cam assembly 430 on the first swing arm 420. The first swing arm 420 replaces the torsion mechanism in the bottom space of the hinge assembly 100. There is no need to set up a torsion mechanism separately, which increases the screen space and simplifies the internal structure, so that the internal components of the product can fully dissipate heat, thereby extending the service life of the product, making the product smoother to use, and improving the user experience.

[0030] In some embodiments of the present application, Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, optionally, the first swing arm 420 is provided with a second slide slot 444, the notch 508 of the second slide slot 444 faces the side wall of the first slide slot 302, and the first cam assembly 430 includes: an elastic member 432 and a slider 434. The elastic member 432 is provided in the second slide slot 444; the first end of the slider 434 is located in the second slide slot 444 and connected to the elastic member 432, and the second end of the slider 434 abuts against the inner wall of the first slide slot 302.

[0031] In this embodiment, the first swing arm 420 is provided with a second slide groove 444, and the notch 508 of the second slide groove 444 faces the side wall of the first slide groove 302, the elastic member 432 of the first cam assembly 430 is arranged in the second slide groove 444, the first end of the slider 434 of the first cam assembly 430 is arranged in the second slide groove 444 and connected to the elastic member 432, and the second end of the slider 434 of the first cam assembly 430 abuts against the inner wall of the first slide groove 302, and the elasticity of the elastic member 432 is utilized to make the first cam assembly 430 There is a certain pressure between the wheel assembly 430 and the inner wall of the first slide groove 302, so that when the first cam assembly 430 slides along the first slide groove 302, the movement trajectory will not be offset. At the same time, there is a certain pressure between the first cam assembly 430 and the inner wall of the first slide groove 302. Then, when the first cam assembly 430 slides in the first slide groove 302, there is friction between the first cam assembly 430 and the inner wall of the first slide groove 302, so that the product has damping when unfolding or folding, thereby enhancing the user experience.

[0032] In some embodiments of the present application, Figure 4 As shown, optionally, the slider 434 includes a body 436 and a first cam portion 438 , wherein the first cam portion 438 is connected to the body 436 ; and the second cam portion 304 abuts against the first cam portion 438 .

[0033] In this embodiment, the main body 436 and the first cam portion 438 are arranged through the slider 434, and the second cam portion 304 is arranged on the inner wall of the first slide groove 302. The first cam portion 438 and the second cam portion 304 abut against each other. When the first cam assembly 430 slides in the first slide groove 302, the first cam portion 438 and the second cam portion 304 cooperate with each other, so that the first cam assembly 430 generates friction when sliding in the first slide groove 302, thereby improving the damping of the product when unfolding or folding, and enhancing the user experience.

[0034] In some embodiments of the present application, Figure 5 , Figure 6 and Figure 7As shown, optionally, the first cam portion 438 has a first wall surface 440 and a second wall surface 442 on one side of the inner wall close to the first slide groove 302, the first wall surface 440 extends in an arc shape from the side of the first cam portion 438 close to the base 200 to the middle of the first cam portion 438 in a direction close to the inner wall of the first slide groove 302, and the second wall surface 442 extends in an arc shape from the middle of the first cam portion 438 to the side of the first cam portion 438 away from the base 200 in a direction away from the inner wall of the first slide groove 302; the second cam portion 304 has a third wall surface 306 and a second wall surface 442 on one side close to the first swing arm 420. There are four walls 308, the third wall 306 extends in an arc shape from the side of the second cam portion 304 close to the base 200 to the middle of the second cam portion 304 in a direction close to the first swing arm 420, and the fourth wall 308 extends in an arc shape from the middle of the second cam portion 304 to the side of the second cam portion 304 away from the base 200 in a direction away from the first swing arm 420; wherein, when at least two frame connectors 300 are in a folded state, the first wall 440 contacts the fourth wall 308; when at least two frame connectors 300 are in an unfolded state, the second wall 442 contacts the third wall 306.

[0035] In this embodiment, the first cam portion 438 has a first wall surface 440 and a second wall surface 442. The first wall surface 440 extends in an arc shape from the side of the first cam portion 438 close to the base 200 to the middle of the first cam portion 438 in a direction close to the inner wall of the first slide groove 302, and the second wall surface 442 extends in an arc shape from the middle of the first cam portion 438 to the side of the first cam portion 438 away from the base 200 in a direction away from the inner wall of the first slide groove 302. The first wall surface 440 and the second wall surface 442 form an integral first cam The second cam portion 304 has a third wall 306 and a fourth wall 308. The third wall 306 extends in an arc shape from the side of the second cam portion 304 close to the base 200 to the middle of the second cam portion 304 in a direction close to the first swing arm 420. The fourth wall 308 extends in an arc shape from the middle of the second cam portion 304 to the side of the second cam portion 304 away from the base 200 in a direction away from the first swing arm 420. The third wall 306 and the fourth wall 308 form an integral wall of the second cam portion 304. When the two frame connectors 300 in the unfolded state are folded, the first swing arm 420 slides in a direction away from the first slide groove 302, and at this time, the first wall 440 of the first cam portion 438 contacts the fourth wall 308 of the second cam portion 304. When the two frame connectors 300 in the folded state are unfolded, the first swing arm 420 slides in the direction of the first slide groove 302, and at this time, the second wall surface 442 of the first cam portion 438 contacts the third wall surface 306 of the second cam portion 304. Since the first cam portion 438 and the wall surface of the second cam portion 304 contact each other, when the product switches between unfolding and folding, the two contacting walls have a limiting effect, and the torque required to drive the product to flip is relatively large, so that the product is kept in a stable state when unfolded or closed, and a slight shake or small force will not cause the unfolding angle to change, thereby improving the stability of the product in the folded or unfolded state.

[0036] In some embodiments of the present application, Figure 6 and Figure 7 As shown, optionally, the slope of the first wall 440 decreases from the side of the first wall 440 close to the base 200 to the side of the first wall 440 away from the base 200; the slope of the second wall 442 increases from the side of the second wall 442 close to the base 200 to the side of the second wall 442 away from the base 200; the slope of the third wall 306 decreases from the side of the third wall 306 close to the base 200 to the side of the third wall 306 away from the base 200; the slope of the fourth wall 308 increases from the side of the fourth wall 308 close to the base 200 to the side of the fourth wall 308 away from the base 200.

[0037] In this embodiment, if Figure 7As shown, the slope of the first wall 440 decreases from the side of the first wall 440 close to the base 200 to the side of the first wall 440 away from the base 200, and the slope of the fourth wall 308 increases from the side of the fourth wall 308 close to the base 200 to the side of the fourth wall 308 away from the base 200, so that when the two frame connecting members 300 are unfolded and folded, when the first wall 440 and the fourth wall 308 are just rubbed, the slope of the protrusion is relatively large, resulting in a large friction force between the two walls, so that the two frame connecting members 30 0 The torque required for unfolding is relatively large. As the two frame connectors 300 are folded, the slope of the protrusion gradually decreases, and the friction between the first wall 440 and the fourth wall 308 gradually decreases, so that the torque required for folding the two frame connectors 300 decreases until the first wall 440 and the fourth wall 308 are no longer in contact. At this time, the second wall 442 is in contact with the third wall 306. The inclined sliding of the second wall 442 and the third wall 306 allows the two frame connectors 300 to use a small torque or no torque to fold the product. Figure 6 As shown, the slope of the second wall 442 increases from the side of the second wall 442 close to the base 200 to the side of the second wall 442 away from the base 200, and the slope of the third wall 306 decreases from the side of the third wall 306 close to the base 200 to the side of the third wall 306 away from the base 200, so that when the two frame connecting members 300 are folded to unfolded, when the second wall 442 and the third wall 306 just rub against each other, the slope of the protrusion is relatively large, and the friction between the two walls is relatively large, so that the two frame connecting members 300 are folded to unfolded. The torque required for folding the connecting member 300 is relatively large. As the two frame connecting members 300 are unfolded, the slope of the protrusion gradually decreases, and the friction between the second wall 442 and the third wall 306 gradually decreases, so that the torque required for folding the two frame connecting members 300 is reduced until the second wall 442 and the third wall 306 are no longer in contact. At this time, the first wall 440 is in contact with the fourth wall 308, and the product can be unfolded using a smaller torque or no torque by sliding on the inclined surface of the first wall 440 and the fourth wall 308.

[0038] In some embodiments of the present application, Figure 4 and Figure 5 As shown, optionally, the second slide groove 444 passes through the first swing arm 420, the number of sliders 434 is at least two, and the two sliders 434 are both arranged in the second slide groove 444, respectively located at the two ends of the second slide groove 444; the two ends of the elastic member 432 are respectively connected to at least two sliders 434.

[0039] In this embodiment, the second slide groove 444 passes through the first swing arm 420, the number of the sliders 434 is at least two, and the two sliders 434 are both arranged in the second slide groove 444, respectively located at the two ends of the second slide groove 444; the two ends of the elastic member 432 are respectively connected to at least two sliders 434, and the elasticity of the elastic member 432 is utilized to make the two sliders 434 have elastic force toward the outside of the second slide groove 444, thereby making the two sliders 434 abut against the inner wall of the first slide groove 302.

[0040] Specifically, by utilizing the pre-compression effect of the elastic member 432, the wall surface of the first cam portion 438 on the first swing arm 420 is always matched with the wall surface of the second cam portion 304 of the first slide groove 302. In the unfolded and folded states, the protrusion is in a state of greater force. At this time, a greater force is required to overcome the action of the protrusion to close or open the frame connector 300. Therefore, the frame connector 300 remains in a stable state when unfolded or closed, and slight shaking or small force will not cause the unfolding angle to change, thereby enhancing the opening and closing feel of the product.

[0041] Specifically, in the process of turning from folding to unfolding, the first cam portion 438 on the first swing arm 420 slides upward along the first slide groove 302. In the process of the first cam portion 438 sliding upward, the two sides are restricted by the second cam portion 304, and the two sliders 434 can only compress the elastic member 432 toward the middle, generating torque. The torque is relatively large at the beginning because the slope of the protrusion is relatively large at this time. As it continues to slide upward, the slope gradually decreases, and the torque also gradually decreases. As it passes the flat area in the middle and continues to move upward, it reaches the unfolded state. At this time, due to the large slope of the inclined surface, the elastic member 432 causes the unfolded state to have a tension, and this tension causes the unfolded product to have an anti-closing force. When turning from the folded state to the unfolded state, the torque is adjusted by setting the inclined curvature of the slider 434 and the elastic member 432, thereby improving the opening and closing feel of the product.

[0042] In some embodiments of the present application, Figure 5 and Fig.10 As shown, optionally, the first end 504 of the elastic member 432 is connected to the inner wall of the second slide groove 444 , and the second end 506 of the elastic member 432 is connected to the slider 434 .

[0043] In this embodiment, the first end 504 of the elastic member 432 is connected to the inner wall of the second slide groove 444, and the second end 506 of the elastic member 432 is connected to the slider 434, so that the elastic member 432 has a pre-compression effect, so that the wall surface of the first cam portion 438 on the first swing arm 420 is always matched with the wall surface of the second cam portion 304 of the first slide groove 302, and the torque is adjusted by utilizing the inclined curvature of the slider 434 and the elastic member 432, so that at least two frame connectors 300 have damping during the unfolding or folding process, thereby improving the opening and closing feel of the product.

[0044] Furthermore, the slider 434 defined in the present application can be one or more. Specifically, when there is one slider 434, the first end of the elastic member 432 is connected to the inner wall of the second slide groove 444, and the second end of the elastic member 432 is connected to the slider 434. The wall surface of the slider 434 cooperates with the wall surface of the second cam portion 304, so that the product has an opening and closing feel when folding or unfolding. Specifically, when there are multiple sliders 434, the sliders 434 are distributed around the first cam assembly 430, one end of all the sliders 434 abuts against the inner wall of the first slide groove 302, and the other end of the slider 434 is connected to the elastic member 432, so that the product can be more stable during the folding or unfolding process, and have a better opening and closing feel. Specifically, when there are multiple sliders 434, the sliders 434 are symmetrically arranged around the first cam assembly 430, the second slide groove is a through groove, and the two ends of the elastic member 432 are connected to the symmetrical first cam assembly 430. The other two sides of the symmetrical first cam assembly 430 are against the inner wall of the first slide groove 302, which can make the product more stable during the folding or unfolding process and have a better opening and closing feel.

[0045] In some embodiments of the present application, optionally, the hinge assembly 100 further includes a second swing arm 410 , and the second swing arm 410 is rotatably connected to the base 200 and is rotatably connected to the frame connector 300 .

[0046] In this embodiment, the hinge assembly 100 further includes a second swing arm 410, which is rotatably connected to the base 200 and the frame connecting member 300. The base 200 and the frame connecting member 300 can be relatively freely rotated by connecting the second swing arm 410 of the hinge assembly 100. At the same time, the hinge assembly 100 is more firmly structured by connecting the second swing arm 410 of the hinge assembly 100.

[0047] In some embodiments of the present application, Figure 8 and Fig. 9 As shown, optionally, the second swing arm 410 is relative to the base 200 around the first axis (such as Fig. 9 The first swing arm 420 rotates relative to the base 200 around the second axis (as shown in line A). Fig. 9 When the device rotates (as shown in line B), the first axis and the second axis are not colinear.

[0048] In this embodiment, the second swing arm 410 rotates around the first axis relative to the base 200, and the first swing arm 420 rotates around the second axis relative to the base 200. The first axis and the second axis are not colinear, ensuring that when the second swing arm 410 rotates, it can drive the first swing arm 420 to slide relative to the frame connector 300, thereby enabling the second swing arm 410 and the first swing arm 420 to have torque function, saving space for setting a torque mechanism at the bottom of the hinge bottom assembly, reducing the space occupied inside the product, and thereby increasing the screen space of the product.

[0049] Furthermore, each pair of swing arms is a synchronous swing arm, and each pair of swing arms is connected by gears or other mechanisms to play a synchronization role. Specifically, four gears can be linked, or they can be connected by other mechanisms, so that each pair of swing arms has a synchronization function. Because each pair of swing arms is a synchronous swing arm, at least two frame connectors 300 can open and close synchronously when folded or unfolded, thereby improving the user experience.

[0050] In some embodiments of the present application, Figure 2 As shown, optionally, the frame connector 300 is disposed in the notch 310 ; a third protrusion 446 is disposed on the side wall of at least one side of the first swing arm 420 , and the third protrusion 446 is disposed in the notch 310 and can slide in the notch 310 .

[0051] In this embodiment, the frame connector 300 is arranged in the notch 310, and the side wall of at least one side of the first swing arm 420 is provided with a third protrusion 446. By setting the third protrusion 446 in the notch 310, the third protrusion 446 can slide in the notch 310, thereby playing the role of a sliding limiter of the first swing arm 420, so that when the first cam assembly 430 slides along the first slide groove 302, the motion trajectory will not be offset, ensuring that the first cam assembly 430 slides in the center of the first slide groove 302, thereby improving the stability of the first cam assembly 430 sliding in the first slide groove 302, and thereby improving the stability of the frame connector 300 when it is unfolded or folded.

[0052] In some embodiments of the present application, Figure 1 As shown, an electronic device 500 is provided, comprising the hinge assembly 100 as in any one of the above embodiments. Therefore, the electronic device 500 has all the beneficial effects of the hinge assembly 100 as in any one of the above embodiments.

[0053] In some embodiments of the present application, Figure 1As shown, optionally, the electronic device 500 further includes a frame 502, the number of the frame 502 is at least two, and the at least two frames 502 are respectively connected to at least two frame connectors 300; so that the electronic device 500 can switch between an unfolded state and a folded state.

[0054] In this embodiment, the electronic device 500 further includes at least two frames 502, and the at least two frames 502 are respectively connected to at least two frame connectors 300, so that the electronic device 500 can be switched between an unfolded state and a folded state. The first swing arm 420 has damping when sliding, so that the at least two frame connectors 300 have damping during the unfolding or folding process, and play a positioning role for the unfolded state or folded state of the frame 502.

[0055] Further, the frame 502 and the frame connector 300 are an integrated structure or a split structure. Specifically, the frame 502 and the frame connector 300 are an integrated structure through integral injection molding, or the frame connector 300 can be a part of the frame 502, which is equivalent to the structure on the frame connector 300 and is a component arranged on the frame 502. Specifically, the frame 502 and the frame connector 300 of the split structure can be connected by welding process, or the frame connector 300 can be connected to the frame 502 by other connection methods, such as screw connection.

[0056] Specifically, the technical solution defined in the present application can be used in mobile phone devices with foldable screens, and can also be extended to other foldable electronic products such as computers, tablets, smart watches, and car displays.

[0057] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0058] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A hinge assembly, It is characterized in that It comprises a base, a first swing arm and a frame connecting member, wherein a first end of the first swing arm is provided with a rotating connecting portion, the rotating connecting portion is rotatably connected to the base, a second end of the first swing arm is provided with a sliding connecting portion, the frame connecting member is provided with a first sliding groove, and the sliding connecting portion is slidably connected to the first sliding groove; Among them, a first cam assembly is provided on the sliding connection part, and a second cam part is provided on the side wall of the first slide groove. During the rotation of the first swing arm relative to the base, the sliding connection part slides relative to the first slide groove, and the first cam assembly and the second cam part interact with each other to provide damping for the rotation of the first swing arm relative to the base.

2. The hinge assembly according to claim 1, It is characterized in that The first swing arm is provided with a second slide slot, the notch of the second slide slot faces the side wall of the first slide slot, and the first cam assembly includes: an elastic member, wherein the elastic member is disposed in the second sliding groove; A slider, wherein the first end of the slider is located in the second sliding groove and connected to the elastic member, and the second end of the slider is against the inner wall of the first sliding groove.

3. The hinge assembly according to claim 2, It is characterized in that The slider comprises a body and a first cam portion, wherein the first cam portion is connected to the body; The second cam portion abuts against the first cam portion.

4. The hinge assembly according to claim 3, It is characterized in that The first cam portion has a first wall surface and a second wall surface on a side of the inner wall close to the first slide groove, the first wall surface extends in an arc shape from the side of the first cam portion close to the base to the middle of the first cam portion in a direction close to the inner wall of the first slide groove, and the second wall surface extends in an arc shape from the middle of the first cam portion to the side of the first cam portion away from the base in a direction away from the inner wall of the first slide groove; The second cam portion has a third wall surface and a fourth wall surface on a side close to the first swing arm, the third wall surface extends in an arc shape from the side of the second cam portion close to the base to the middle of the second cam portion in a direction close to the first swing arm, and the fourth wall surface extends in an arc shape from the middle of the second cam portion to the side of the second cam portion away from the base in a direction away from the first swing arm; Wherein, when at least two of the frame connecting members are in a folded state, the first wall surface is in contact with the fourth wall surface; When at least two of the frame connecting members are in an unfolded state, the second wall surface contacts the third wall surface.

5. The hinge assembly according to claim 4, It is characterized in that The slope of the first wall surface decreases from a side of the first wall surface close to the base to a side of the first wall surface far from the base; The slope of the second wall surface increases from a side of the second wall surface close to the base to a side of the second wall surface away from the base; The slope of the third wall surface decreases from a side of the third wall surface close to the base to a side of the third wall surface away from the base; The slope of the fourth wall increases from a side of the fourth wall close to the base to a side of the fourth wall far from the base.

6. The hinge assembly according to claim 2, It is characterized in that The second slide groove passes through the first swing arm, the number of the sliders is at least two, and the two sliders are both arranged in the second slide groove and are respectively located at two ends of the second slide groove; Two ends of the elastic member are respectively connected to at least two of the sliding blocks.

7. The hinge assembly according to claim 2, It is characterized in that The first end of the elastic member is connected to the inner wall of the second sliding groove, and the second end of the elastic member is connected to the sliding block.

8. The hinge assembly according to any one of claims 1 to 7, It is characterized in that Also includes: A second swing arm is rotatably connected to the base and to the frame connecting piece.

9. The hinge assembly according to claim 8, It is characterized in that The second swing arm rotates relative to the base around a first axis, the first swing arm rotates relative to the base around a second axis, and the first axis is not colinear with the second axis.

10. The hinge assembly according to any one of claims 1 to 7, It is characterized in that The frame connecting piece is arranged in the notch; A third protrusion is provided on at least one side wall of the first swing arm. The third protrusion is arranged in the notch and can slide in the notch.

11. An electronic device, It is characterized in that A hinge assembly and a frame according to any one of claims 1 to 10; The number of the frames is at least two, and the at least two frames are respectively connected to at least two frame connectors, so that the electronic device can be switched between an unfolded state and a folded state.

Images