Hinge mechanism and electronic device

Abstract

The hinge mechanism comprises a hinge support, a swing arm, a connecting support, a connecting shaft, a first magnetic part and a second magnetic part, the first end of the swing arm is provided with a first connecting part, the hinge support is provided with a second connecting part, the first connecting part and the second connecting part are both arranged on the connecting shaft in a sleeving mode, and the connecting shaft is provided with a second magnetic part. The second end of the swing arm is connected with the connecting support in a sliding mode. The first magnetic part is arranged at the second end of the swing arm, the second magnetic part is arranged on the connecting support, and the first magnetic part and the second magnetic part are in magnetic fit so as to provide damping force for damping fit of the first connecting part and the second connecting part in the extending direction of the connecting shaft. According to the scheme, the problem that in a hinge mechanism in the related technology, the damping effect is poor in the rotating process of the swing arm can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of hinge mechanisms, and in particular to a hinge mechanism and an electronic device. Background Art

[0002] In the design of modern electronic devices, hinge mechanisms are widely used in devices that need to be frequently unfolded and folded, such as laptops, foldable screen mobile phones and tablets. The hinge mechanisms in these devices usually include one or more swing arms to support the screen or other movable parts and ensure their stability during unfolding and folding.

[0003] In order to make the swing arm have a damping effect during the rotation process, a spring is usually used in the hinge mechanism to provide the necessary damping force. This design allows the swing arm to move smoothly when rotating, preventing sudden shaking or excessive speed, thereby improving the user experience and protecting the device. Although the hinge mechanism using springs to provide damping force can effectively achieve the damping effect, in actual use, due to frequent unfolding and folding operations, the elastic performance of the spring will gradually decrease, or even eventually fail, resulting in poor damping effect of the swing arm during the rotation process. Summary of the invention

[0004] The invention discloses a hinge mechanism and an electronic device, so as to solve the problem that the damping effect of a swing arm of the hinge mechanism in the related art is poor during the rotation process.

[0005] In order to solve the above-mentioned technical problems, the present invention is achieved as follows: In a first aspect, the present application discloses a hinge mechanism, the hinge mechanism disclosed comprises a hinge bracket, a swing arm, a connecting bracket, a connecting shaft, a first magnetic member and a second magnetic member, wherein the first end of the swing arm has a first connecting portion, the hinge bracket has a second connecting portion, the first connecting portion and the second connecting portion are both sleeved on the connecting shaft, and the second end of the swing arm is slidably connected to the connecting bracket; The first magnetic component is arranged at the second end of the swing arm, and the second magnetic component is arranged at the connecting bracket. The first magnetic component and the second magnetic component are magnetically matched to provide a damping force for the first connecting part and the second connecting part to damp the connecting part in the extension direction of the connecting axis.

[0006] In a second aspect, the present application further discloses an electronic device, and the disclosed electronic device includes the hinge mechanism described in the first aspect.

[0007] The technical solution adopted by the present invention can achieve the following technical effects: The hinge mechanism disclosed in the embodiment of the present application is configured such that the swing arm is rotatably connected to the hinge bracket through the connecting shaft by sleeve-mounting the first connecting part and the second connecting part on the connecting shaft, and the first magnetic part is configured on the second end of the swing arm and the second magnetic part is configured on the connecting bracket, so that the first connecting part and the second connecting part are damped in the extension direction of the connecting shaft through the magnetic cooperation between the first magnetic part and the second magnetic part. Since the magnetic force between the first magnetic part and the second magnetic part does not decrease as the number of times the hinge mechanism is unfolded and folded increases, the swing arm always has a good damping effect during the rotation process relative to the hinge bracket, thereby solving the problem of poor damping effect of the swing arm of the hinge mechanism during the rotation process in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is an overall schematic diagram of the hinge mechanism disclosed in the embodiment of the present invention; Figure 2 It is a structural schematic diagram of a swing arm disclosed in an embodiment of the present invention; Figure 3 A schematic diagram of the structure of a connecting bracket disclosed in an embodiment of the present invention; Figure 4 A schematic diagram of the structure of the connection bracket and the swing arm in cooperation with each other disclosed in an embodiment of the present invention; Figure 5 It is a partial schematic diagram of a hinge bracket disclosed in an embodiment of the present invention; Figure 6 Schematic diagram of the swing arm disclosed in the embodiment of the present invention at other viewing angles; Figure 7 A schematic diagram of the cooperation between the swing arm and the hinge bracket disclosed in an embodiment of the present invention; Figure 8 Schematic diagram of the hinge mechanism disclosed in an embodiment of the present invention unfolded to a first angle Fig. 9 It is a schematic diagram of the hinge mechanism disclosed in the embodiment of the present invention being unfolded to a second angle; Fig.10 It is a schematic diagram of the swing arm according to an embodiment of the present invention rotating to a first angle region relative to the hinge bracket; wherein F1 is greater than F2; Fig.11 It is a schematic diagram of the swing arm according to an embodiment of the present invention rotating relative to the hinge bracket to a second angle region; wherein F1 is smaller than F2; Fig.12 A schematic diagram of the cooperation between the first magnetic pole and the fourth magnetic member disclosed in an embodiment of the present invention; Fig.13 This is a schematic diagram of the cooperation between the second magnetic pole and the fourth magnetic member disclosed in an embodiment of the present invention.

[0009] Description of reference numerals: A-Magnet, 100-hinge bracket, 110-second connecting portion, 111-third damping sub-portion, 112-fourth damping sub-portion, 113-second protrusion, 200-swing arm, 210-first connecting portion, 211-first damping sub-portion, 212-second damping sub-portion, 213-first protrusion, 220-guide rail, 300-connecting bracket, 310-guide groove, 400-connecting shaft, 500-first magnetic component, 510-first sub-magnetic component, 520-second sub-magnetic component, 600-second magnetic component, 610-third sub-magnetic component, 620-fourth sub-magnetic component, 710-third magnetic member, 711-first magnetic pole, 712-second magnetic pole, 720-fourth magnetic member, 800-Synchronous gear set, 900 - Non-magnetic mounting. DETAILED DESCRIPTION

[0010] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0011] The technical solutions disclosed in various embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0012] Please refer to Figures 1 to 13 An embodiment of the present invention discloses a hinge mechanism, which includes a hinge bracket 100, a swing arm 200, a connecting bracket 300, a connecting shaft 400, a first magnetic member 500 and a second magnetic member 600.

[0013] The hinge bracket 100 is the main part of the hinge mechanism, and is used to provide a foundation for the installation of other parts of the hinge mechanism. The first end of the swing arm 200 has a first connection portion 210, and the hinge bracket 100 has a second connection portion 110. The first connection portion 210 and the second connection portion 110 are both sleeved on the connecting shaft 400. The swing arm 200 can rotate relative to the hinge bracket 100 through the first connection portion 210, so that the hinge mechanism can switch between the unfolded state and the folded state.

[0014] It should be noted that the connecting shaft 400 may be fixedly connected to the hinge bracket 100, and the first connecting portion 210 of the swing arm 200 may be rotatably connected to the connecting shaft 400. Of course, the connecting shaft 400 may also be rotatably connected to the hinge bracket 100 and fixedly connected to the swing arm 200. Of course, the hinge bracket 100 and the swing arm 200 may also be rotatably sleeved on the connecting shaft 400. The embodiment of the present application does not specifically limit the connection relationship between the hinge bracket 100, the swing arm 200, and the connecting shaft 400.

[0015] The second end of the swing arm 200 is slidably connected to the connecting bracket 300 . When the swing arm 200 rotates relative to the hinge bracket 100 , the second end of the swing arm 200 slides relative to the connecting bracket 300 .

[0016] The first magnetic component 500 is arranged at the second end of the swing arm 200, and the second magnetic component 600 is arranged at the connecting bracket 300. The first magnetic component 500 and the second magnetic component 600 can be permanent magnets, electromagnets, etc. The embodiment of the present application does not specifically limit the types of the first magnetic component 500 and the second magnetic component 600.

[0017] The first magnetic member 500 and the second magnetic member 600 are magnetically matched to provide a damping force for the first connection portion 210 and the second connection portion 110 to be matched in the extension direction of the connection shaft 400. The magnetic matching of the first magnetic member 500 and the second magnetic member 600 can drive the first connection portion 210 and the second connection portion 110 to contact each other in the extension direction of the connection shaft 400, and provide a damping force for the damping matching, so that the hinge mechanism has a damping effect during the unfolding and folding process, and the hinge mechanism can also maintain a certain opening and closing angle without manual external force.

[0018] The first magnetic member 500 and the second magnetic member 600 may be matched by magnetic attraction or magnetic repulsion. The embodiment of the present application does not impose any specific limitation on the matching manner of the first magnetic member 500 and the second magnetic member 600.

[0019] It should be further explained that the first end of the swing arm 200 and the second end of the swing arm 200 both refer to a portion of the swing arm 200 that has a certain length and is located at the end.

[0020] The hinge mechanism disclosed in the embodiment of the present application is configured such that the swing arm 200 is rotatably connected to the hinge bracket 100 through the connecting shaft 400 by sleeve-arranging the first connecting part 210 and the second connecting part 110 on the connecting shaft 400, and the first magnetic part 500 is arranged on the second end of the swing arm 200, and the second magnetic part 600 is arranged on the connecting bracket 300, so that the first connecting part 210 and the second connecting part 110 are damped in the extension direction of the connecting shaft 400 through the magnetic cooperation of the first magnetic part 500 and the second magnetic part 600. Since the magnetic force between the first magnetic part 500 and the second magnetic part 600 does not decrease as the number of times the hinge mechanism is unfolded and folded increases, the swing arm 200 always has a good damping effect during the rotation process relative to the hinge bracket 100, thereby solving the problem of poor damping effect of the swing arm of the hinge mechanism in the related art during the rotation process.

[0021] There are relatively many ways to set the first magnetic part 500 and the second magnetic part 600. For example, the first magnetic part 500 and the second magnetic part 600 can both include a magnet. The magnet of the first magnetic part 500 and the magnet of the second magnetic part 600 can be arranged on the same side of the swing arm 200 in the extension direction of the connecting shaft 400, so as to provide a damping force for the first connecting part 210 and the second connecting part 110 in the extension direction of the connecting shaft 400 through the magnetic cooperation between the magnet of the first magnetic part 500 and the magnet of the second magnetic part 600.

[0022] In order to improve the stability of the second end of the swing arm 200 when it moves relative to the connecting bracket 300, optionally, the first magnetic member 500 may include a first sub-magnetic member 510 and a second sub-magnetic member 520, and the second magnetic member 600 may include a third sub-magnetic member 610 and a fourth sub-magnetic member 620. The first sub-magnetic member 510, the second sub-magnetic member 520, the third sub-magnetic member 610 and the fourth sub-magnetic member 620 may be a single permanent magnet or a combination of multiple permanent magnets, or a single electromagnet or a combination of multiple electromagnets. The embodiment of the present application does not specifically limit the types of the first sub-magnetic member 510, the second sub-magnetic member 520, the third sub-magnetic member 610 and the fourth sub-magnetic member 620.

[0023] The first sub-magnetic component 510 and the second sub-magnetic component 520 are respectively arranged on both sides of the swing arm 200 in the extension direction, the third sub-magnetic component 610 is arranged opposite to the first sub-magnetic component 510, and the fourth sub-magnetic component 620 is arranged opposite to the second sub-magnetic component 520. The magnetic cooperation between the third sub-magnetic component 610 and the first sub-magnetic component 510 and the magnetic cooperation between the fourth sub-magnetic component 620 and the second sub-magnetic component 520 provide a damping force for the damping cooperation between the first connecting portion 210 and the second connecting portion 110 in the extension direction of the connecting shaft 400.

[0024] Specifically, between the third sub-magnetic component 610 and the first sub-magnetic component 510, and between the fourth sub-magnetic component 620 and the second sub-magnetic component 520, one can provide magnetic attraction, and the other can provide magnetic repulsion, so that the magnetic force provided by the third sub-magnetic component 610 and the first sub-magnetic component 510 and the magnetic force provided by the fourth sub-magnetic component 620 and the second sub-magnetic component 520 are in the same direction, which is conducive to improving the damping force of the damping match between the first connecting portion 210 and the second connecting portion 110 in the extension direction of the connecting shaft 400. Of course, between the third sub-magnetic component 610 and the first sub-magnetic component 510, and between the fourth sub-magnetic component 620 and the second sub-magnetic component 520, both can provide magnetic attraction or magnetic repulsion. At this time, it is necessary to satisfy that the magnitude of the magnetic attraction between the third sub-magnetic component 610 and the first sub-magnetic component 510 and the magnitude of the magnetic attraction between the fourth sub-magnetic component 620 and the second sub-magnetic component 520 are different.

[0025] The hinge mechanism disclosed in the embodiment of the present application is achieved by setting the first magnetic component 500 to a structure including a first sub-magnetic component 510 and a second sub-magnetic component 520, and setting the second magnetic component 600 to a structure including a third sub-magnetic component 610 and a fourth sub-magnetic component 620, so that the first sub-magnetic component 510 and the second sub-magnetic component 520 are respectively arranged on both sides of the swing arm 200 in the extension direction, the third sub-magnetic component 610 is arranged opposite to the first sub-magnetic component 510, and the fourth sub-magnetic component 620 is arranged opposite to the second sub-magnetic component 520, so that the second end of the swing arm 200 is affected by magnetic force on both sides of the extension direction, thereby improving the stability of the second end of the swing arm 200 when it moves relative to the connecting bracket 300.

[0026] Further, the first connecting portion 210 may have a first damping sub-portion 211 and a second damping sub-portion 212, and the second connecting portion 110 may have a third damping sub-portion 111 and a fourth damping sub-portion 112. When the swing arm 200 rotates to the first angle region relative to the hinge bracket 100, the magnetic force between the third sub-magnetic component 610 and the first sub-magnetic component 510 may be greater than the magnetic force between the fourth sub-magnetic component 620 and the second sub-magnetic component 520, the first damping sub-portion 211 and the third damping sub-portion 111 are damped and matched, and the second damping sub-portion 212 and the fourth damping sub-portion 112 are separated. When the swing arm 200 rotates to the second angle region relative to the hinge bracket 100, the magnetic force between the third sub-magnetic component 610 and the first sub-magnetic component 510 can be smaller than the magnetic force between the fourth sub-magnetic component 620 and the second sub-magnetic component 520, the first damping sub-section 211 is separated from the third damping sub-section 111, and the second damping sub-section 212 is damped with the fourth damping sub-section 112. It should be noted that in this embodiment, the third sub-magnetic component 610 and the first sub-magnetic component 510 and the fourth sub-magnetic component 620 and the second sub-magnetic component 520 both need to provide magnetic attraction or magnetic repulsion.

[0027] It should be noted that the first angle region may be in the range of 0 to 89 degrees, and the second angle region may be in the range of 91 to 180 degrees, wherein 0 degrees may be the angle when the hinge mechanism is in the folded state, and 180 degrees may be the angle when the hinge mechanism is in the unfolded state. Of course, the first angle region may also be in the range of 0 to 119 degrees, and the second angle region may also be in the range of 121 to 180 degrees, etc. The embodiment of the present application does not specifically limit the ranges of the first angle region and the second angle region, and they may be specifically set according to the design requirements of the hinge mechanism.

[0028] The hinge mechanism disclosed in the embodiment of the present application is configured such that the first connecting portion 210 is configured to have a structure with a first damping sub-portion 211 and a second damping sub-portion 212, and the second connecting portion 110 is configured to have a structure with a third damping sub-portion 111 and a fourth damping sub-portion 112, so that when the swing arm 200 is rotated to a first angle region relative to the hinge bracket 100, the first damping sub-portion 211 is damped in cooperation with the third damping sub-portion 111, and the second damping sub-portion 212 is separated from the fourth damping sub-portion 112; when the swing arm 200 is rotated to a second angle region relative to the hinge bracket 100, the first damping sub-portion 211 is separated from the third damping sub-portion 111, and the second damping sub-portion 212 is damped in cooperation with the fourth damping sub-portion 112, so that different damping sub-portions are used for damping cooperation in different angle regions, thereby alleviating wear compared to unilateral damping cooperation.

[0029] Optionally, the first sub-magnetic member 510, the second sub-magnetic member 520, the third sub-magnetic member 610 and the fourth sub-magnetic member 620 may each include a plurality of magnets A arranged perpendicular to the extension direction. The plurality of magnets A of the first sub-magnetic member 510, the second sub-magnetic member 520, the third sub-magnetic member 610 and the fourth sub-magnetic member 620 are arranged in a direction from the first end of the swing arm 200 to the second end of the swing arm 200. The plurality of magnets A of the first sub-magnetic member 510 and the plurality of magnets A of the third sub-magnetic member 610 may both constitute a Halbach array structure. The plurality of magnets A of the second sub-magnetic member 520 and the plurality of magnets A of the fourth sub-magnetic member 620 may both be a multi-stage array structure.

[0030] It should be noted that the arrangement of the Halbach array structure belongs to the prior art and will not be described in detail in the embodiments of this application. The multi-stage array structure refers to a structure in which the magnetic poles of multiple magnets A are oriented in the same direction and multiple magnets A are stacked and arranged in the direction of the magnetic poles.

[0031] The hinge mechanism disclosed in the embodiment of the present application is configured by arranging the multiple magnets A of the first sub-magnetic component 510 and the multiple magnets A of the third sub-magnetic component 610 into a Halbach array structure. The multiple magnets A of the second sub-magnetic component 520 and the multiple magnets A of the fourth sub-magnetic component 620 are configured into a multi-stage array structure, so that the magnetic field is relatively concentrated, thereby increasing the magnetic force of the magnetic cooperation between the first sub-magnetic component 510 and the third sub-magnetic component 610, and between the second sub-magnetic component 520 and the fourth sub-magnetic component 620.

[0032] In another embodiment, the plurality of magnets A of the first sub-magnetic component 510, the second sub-magnetic component 520, the third sub-magnetic component 610, and the fourth sub-magnetic component 620 may be arranged in a Halbach array structure or in a multi-stage array structure. The number of magnets A of the first sub-magnetic component 510 is equal to the number of magnets A of the third sub-magnetic component 610, and the number of magnets A of the second sub-magnetic component 520 is equal to the number of magnets A of the fourth sub-magnetic component 620. The number of magnets A of the first sub-magnetic component 510 is greater than the number of magnets A of the second sub-magnetic component 520, so that when the swing arm 200 rotates to the first angle area relative to the hinge bracket 100, the first damping sub-section 211 and the third damping sub-section 111 are damped and cooperated, and the second damping sub-section 212 and the fourth damping sub-section 112 are separated; when the swing arm 200 rotates to the second angle area relative to the hinge bracket 100, the first damping sub-section 211 and the third damping sub-section 111 are separated, and the second damping sub-section 212 and the fourth damping sub-section 112 are damped and cooperated.

[0033] The hinge mechanism disclosed in the embodiment of the present application arranges the multiple magnets A of the first sub-magnetic component 510, the second sub-magnetic component 520, the third sub-magnetic component 610 and the fourth sub-magnetic component 620 in a Halbach array structure or a multi-level array structure, so that the magnetic field is relatively concentrated, thereby increasing the magnetic force of the magnetic coordination between the first sub-magnetic component 510 and the third sub-magnetic component 610, and between the second sub-magnetic component 520 and the fourth sub-magnetic component 620.

[0034] Of course, in another embodiment, the first sub-magnetic component 510, the second sub-magnetic component 520, the third sub-magnetic component 610, and the fourth sub-magnetic component 620 may also be long strip magnets or other structures, and the embodiment of the present application does not specifically limit the structures of the first sub-magnetic component 510, the second sub-magnetic component 520, the third sub-magnetic component 610, and the fourth sub-magnetic component 620. The first sub-magnetic component 510, the second sub-magnetic component 520, the third sub-magnetic component 610, and the fourth sub-magnetic component 620 can be installed at the corresponding position through the non-magnetic mounting component 900, and the non-magnetic mounting component 900 is not easily magnetized, thereby alleviating the magnetization effect of the first sub-magnetic component 510, the second sub-magnetic component 520, the third sub-magnetic component 610, and the fourth sub-magnetic component 620 on other components.

[0035] In the specific application process, please refer to Figure 8 and Fig. 9 , between the first sub-magnetic component 510 and the third sub-magnetic component 610, and between the second sub-magnetic component 520 and the fourth sub-magnetic component 620 as shown in FIG. Figure 8 In the case of facing each other, there is only a force along the extension direction between the first sub-magnetic component 510 and the third sub-magnetic component 610 and between the second sub-magnetic component 520 and the fourth sub-magnetic component 620. At this time, the damping effect of the hinge mechanism is the best. Fig. 9 In the case of misalignment, there is not only a first force component along the extension direction between the first sub-magnetic component 510 and the third sub-magnetic component 610, and between the second sub-magnetic component 520 and the fourth sub-magnetic component 620, but also a second force component along the moving direction of the swing arm 200 along the connecting bracket 300. Therefore, by setting the positions of the first sub-magnetic component 510, the second sub-magnetic component 520, the third sub-magnetic component 610, and the fourth sub-magnetic component 620, the second force component can be used to enhance and weaken the damping effect, which is conducive to the diversified design of the hinge mechanism. Figure 8 and Fig. 9 The arrows in the diagram indicate the direction of the force.

[0036] In an optional embodiment, the hinge mechanism may further include a third magnetic member 710 and a fourth magnetic member 720. One of the hinge bracket 100 and the first end of the swing arm 200 may be provided with the third magnetic member 710, and the other may be provided with the fourth magnetic member 720. The third magnetic member 710 may have a first magnetic pole 711 and a second magnetic pole 712. When the hinge mechanism is in an unfolded state, the magnetic attraction between the first magnetic pole 711 and the fourth magnetic member 720 may be greater than the magnetic attraction between the second magnetic pole 712 and the fourth magnetic member 720. When the hinge mechanism is in a folded state, the magnetic attraction between the first magnetic pole 711 and the fourth magnetic member 720 may be greater than the magnetic attraction between the second magnetic pole 712 and the fourth magnetic member 720.

[0037] Specifically, the third magnetic member 710 and the fourth magnetic member 720 may be permanent magnets, electromagnetic members, etc. The embodiment of the present application does not specifically limit the types of the third magnetic member 710 and the fourth magnetic member 720 .

[0038] The hinge mechanism disclosed in the embodiment of the present application is provided with a third magnetic member 710 and a fourth magnetic member 720, so that one of the first ends of the hinge bracket 100 and the swing arm 200 is provided with a third magnetic member 710, and the other is provided with a fourth magnetic member 720, so that when the hinge mechanism is in the unfolded state, the magnetic attraction between the first magnetic pole 711 and the fourth magnetic member 720 is greater than the magnetic attraction between the second magnetic pole 712 and the fourth magnetic member 720, so that the hinge mechanism can be better maintained in the unfolded state. When the hinge mechanism is in the folded state, the magnetic attraction between the first magnetic pole 711 and the fourth magnetic member 720 is greater than the magnetic attraction between the second magnetic pole 712 and the fourth magnetic member 720, so that the hinge mechanism can be better maintained in the folded state.

[0039] Optionally, the third magnetic member 710 and the fourth magnetic member 720 may both be arc-shaped structures, and the third magnetic member 710 and the fourth magnetic member 720 may be arranged around the connecting axis 400, and the third magnetic member 710 may have a first magnetic pole 711 and a second magnetic pole 712 in the direction around the connecting axis 400. When the hinge mechanism is in the unfolded state, the first magnetic pole 711 contacts the fourth magnetic member 720, and the second magnetic pole 712 is separated from the fourth magnetic member 720. When the hinge mechanism is in the folded state, the second magnetic pole 712 contacts the fourth magnetic member 720, and the first magnetic pole 711 is separated from the fourth magnetic member 720. The contact between the first magnetic pole 711 and the fourth magnetic member 720 can limit the hinge mechanism from continuing to unfold when the hinge mechanism is in the unfolded state, and the contact between the second magnetic pole 712 and the fourth magnetic member 720 can limit the hinge mechanism from continuing to fold when the hinge mechanism is in the folded state. The hinge mechanism disclosed in the embodiment of the present application is configured to have an arc-shaped structure for the third magnetic member 710 and the fourth magnetic member 720 so that the third magnetic member 710 and the fourth magnetic member 720 are disposed around the connecting shaft 400, thereby facilitating the stability of the installation of the third magnetic member 710 and the fourth magnetic member 720. When the hinge mechanism is in the unfolded state, the first magnetic pole 711 contacts the fourth magnetic member 720 and the second magnetic pole 712 is separated from the fourth magnetic member 720, and when the hinge mechanism is in the folded state, the second magnetic pole 712 contacts the fourth magnetic member 720 and the first magnetic pole 711 is separated from the fourth magnetic member 720. This not only makes the magnetic force larger when the first magnetic pole 711 contacts the fourth magnetic member 720 or the second magnetic pole 712 contacts the fourth magnetic member 720, but also the first magnetic pole 711 contacts the fourth magnetic member 720 to limit the hinge mechanism from further unfolding when the hinge mechanism is in the unfolded state, and the second magnetic pole 712 contacts the fourth magnetic member 720 to limit the hinge mechanism from further folding when the hinge mechanism is in the folded state, thereby making the unfolded state of the hinge mechanism and the position of the folding device more accurate. The fourth magnetic member 720 may be a soft magnet.

[0040] In order to improve the damping effect between the first connection part 210 and the second connection part 110, optionally, the first connection part 210 may have a plurality of first protrusions 213 spaced apart along the extension direction, and the second connection part 110 may have a plurality of second protrusions 113 spaced apart along the extension direction. The plurality of first protrusions 213 and the plurality of second protrusions 113 are cross-distributed, and the plurality of first protrusions 213 and the plurality of second protrusions 113 may be provided with connection holes, and the connection shaft 400 may be passed through the plurality of connection holes of the first connection part 210 and the second connection part 110. In the extension direction, the end surface of the first protrusion 213 and the end surface of the second protrusion 113 are damped.

[0041] The hinge mechanism disclosed in the embodiment of the present application is configured such that the first connecting part 210 has a plurality of first protrusions 213 spaced apart along the extension direction of the connecting axis 400, and the second connecting part 110 has a plurality of second protrusions 113 spaced apart along the extension direction of the connecting axis 400, so that the plurality of first protrusions 213 and the plurality of second protrusions 113 are cross-distributed, so that in the extension direction of the connecting axis 400, the end faces of the plurality of first protrusions 213 are damped with the end faces of the plurality of second protrusions 113, thereby increasing the contact area of ​​the damping cooperation between the first connecting part 210 and the second connecting part 110.

[0042] It should be noted that in the embodiment where the first connection portion 210 has the first damping sub-portion 211 and the second damping sub-portion 212, and the second connection portion 110 has the third damping sub-portion 111 and the fourth damping sub-portion 112, the first damping sub-portion 211 and the second damping sub-portion 212 are respectively located on opposite sides of the first protrusion 213 in the extending direction of the connecting shaft 400, and the third damping sub-portion 111 and the fourth damping sub-portion 112 are respectively located on opposite sides of the second protrusion 113 in the extending direction of the connecting shaft 400. Specifically, the end surface of the first protrusion 213 and the end surface of the second protrusion 113 may both be planes, which can help increase the contact area of ​​the damping fit between the first connection portion 210 and the second connection portion 110 .

[0043] Of course, in another embodiment, the end surface of the first protrusion 213 and the end surface of the second protrusion 113 can also be a raised arc structure. The embodiment of the present application does not specifically limit the structure of the end surface of the first protrusion 213 and the end surface of the second protrusion 113.

[0044] Optionally, the second end of the swing arm 200 may have a guide rail 220, the connecting bracket 300 may have a guide groove 310, the guide rail 220 may be slidably disposed in the guide groove 310, the first magnetic member 500 may be disposed on the guide rail 220, and the second magnetic member 600 may be disposed in the guide groove 310.

[0045] The hinge mechanism disclosed in the embodiment of the present application is provided with a guide rail 220 at the second end of the swing arm 200 and a guide groove 310 is provided on the connecting bracket 300, so that the guide rail 220 is slidably arranged in the guide groove 310, thereby facilitating the stability of the movement of the second end of the swing arm 200 relative to the connecting bracket 300. By arranging the first magnetic member 500 on the guide rail 220 and the second magnetic member 600 in the guide groove 310, the first magnetic member 500 and the second magnetic member 600 can be hidden in the guide groove 310, so that the first magnetic member 500 and the second magnetic member 600 can be protected.

[0046] In an optional embodiment, the hinge bracket 100 may be provided with swing arms 200 on both sides of the extension direction perpendicular to the connecting axis 400, and the hinge mechanism may further include a synchronous gear set 800. The synchronous gear set 800 may be provided on the hinge bracket 100, and the swing arms 200 located on both sides of the hinge bracket 100 may be connected through the synchronous gear set 800.

[0047] The hinge mechanism disclosed in the embodiment of the present application is configured by arranging swing arms 200 on both sides perpendicular to the extension direction of the connecting shaft 400, so that the swing arms 200 located on both sides of the hinge bracket 100 are connected through a synchronous gear set 800, so that the swing arms 200 located on both sides of the hinge bracket 100 can rotate synchronously with respect to the hinge bracket 100 through the synchronous gear set 800.

[0048] The present application also discloses an electronic device, which includes the hinge mechanism disclosed in the above embodiment. The electronic device disclosed in the embodiment of the present application is provided with the hinge mechanism disclosed in the above embodiment so that the swing arm 200 always has a good damping effect during the rotation process relative to the hinge bracket 100, thereby solving the problem of poor damping effect of the swing arm of the hinge mechanism in the related art during the rotation process.

[0049] It should be noted that the electronic device may be a mobile phone, a tablet, a game console, a laptop computer, etc., and the embodiments of the present application do not specifically limit the type of electronic device.

[0050] The above embodiments of the present invention focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0051] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation modes, which are merely illustrative rather than restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which are within the protection of the present invention.

Claims

1. A hinge mechanism, characterized in that: The invention comprises a hinge bracket (100), a swing arm (200), a connecting bracket (300), a connecting shaft (400), a first magnetic member (500) and a second magnetic member (600), wherein the first end of the swing arm (200) has a first connecting portion (210), the hinge bracket (100) has a second connecting portion (110), the first connecting portion (210) and the second connecting portion (110) are both sleeved on the connecting shaft (400), and the second end of the swing arm (200) is slidably connected to the connecting bracket (300); The first magnetic component (500) is arranged at the second end of the swing arm (200), and the second magnetic component (600) is arranged at the connecting bracket (300). The first magnetic component (500) and the second magnetic component (600) are magnetically matched to provide a damping force for the first connecting portion (210) and the second connecting portion (110) to dampen the connecting portion in the extension direction of the connecting shaft (400).

2. The hinge mechanism according to claim 1, characterized in that: The first magnetic component (500) comprises a first sub-magnetic component (510) and a second sub-magnetic component (520), and the second magnetic component (600) comprises a third sub-magnetic component (610) and a fourth sub-magnetic component (620). The first sub-magnetic component (510) and the second sub-magnetic component (520) are respectively arranged on both sides of the swing arm (200) in the extension direction of the connecting shaft (400), the third sub-magnetic component (610) is arranged opposite to the first sub-magnetic component (510), and the fourth sub-magnetic component (620) is arranged opposite to the second sub-magnetic component (520). The third sub-magnetic component (610) and the first sub-magnetic component (510) are magnetically matched, and the fourth sub-magnetic component (620) and the second sub-magnetic component (520) are magnetically matched, so as to provide a damping force for the damping match between the first connecting portion (210) and the second connecting portion (110) in the extension direction of the connecting shaft (400).

3. The hinge mechanism according to claim 2, characterized in that: The first connection portion (210) has a first damping sub-portion (211) and a second damping sub-portion (212), and the second connection portion (110) has a third damping sub-portion (111) and a fourth damping sub-portion (112); When the swing arm (200) is rotated to a first angle region relative to the hinge bracket (100), the magnetic force between the third sub-magnetic component (610) and the first sub-magnetic component (510) is greater than the magnetic force between the fourth sub-magnetic component (620) and the second sub-magnetic component (520), the first damping sub-section (211) and the third damping sub-section (111) are damped together, and the second damping sub-section (212) and the fourth damping sub-section (112) are separated; When the swing arm (200) is rotated to a second angle region relative to the hinge bracket (100), the magnetic force between the third sub-magnetic component (610) and the first sub-magnetic component (510) is smaller than the magnetic force between the fourth sub-magnetic component (620) and the second sub-magnetic component (520), the first damping sub-section (211) is separated from the third damping sub-section (111), and the second damping sub-section (212) and the fourth damping sub-section (112) are damping-coordinated.

4. The hinge mechanism according to claim 2, characterized in that: The first sub-magnetic component (510), the second sub-magnetic component (520), the third sub-magnetic component (610) and the fourth sub-magnetic component (620) all comprise a plurality of magnets (A) arranged along an extension direction perpendicular to the connection axis (400); The multiple magnets (A) of the first sub-magnetic component (510) and the multiple magnets (A) of the third sub-magnetic component (610) both constitute a Halbach array structure, and the multiple magnets (A) of the second sub-magnetic component (520) and the multiple magnets (A) of the fourth sub-magnetic component (620) both constitute a multi-level array structure; or, The plurality of magnets (A) of the first sub-magnetic component (510), the second sub-magnetic component (520), the third sub-magnetic component (610) and the fourth sub-magnetic component (620) are all arranged in a Halbach array structure or in a multi-stage array structure; the number of magnets (A) of the first sub-magnetic component (510) is equal to the number of magnets (A) of the third sub-magnetic component (610); the number of magnets (A) of the second sub-magnetic component (520) is equal to the number of magnets (A) of the fourth sub-magnetic component (620); and the number of magnets (A) of the first sub-magnetic component (510) is greater than the number of magnets (A) of the second sub-magnetic component (520).

5. The hinge mechanism according to claim 1, characterized in that: The hinge mechanism further comprises a third magnetic member (710) and a fourth magnetic member (720); one of the hinge bracket (100) and the first end of the swing arm (200) is provided with the third magnetic member (710), and the other is provided with the fourth magnetic member (720); the third magnetic member (710) has a first magnetic pole (711) and a second magnetic pole (712); When the hinge mechanism is in an unfolded state, the magnetic attraction force between the first magnetic pole (711) and the fourth magnetic member (720) is greater than the magnetic attraction force between the second magnetic pole (712) and the fourth magnetic member (720); When the hinge mechanism is in a folded state, the magnetic attraction force between the first magnetic pole (711) and the fourth magnetic component (720) is greater than the magnetic attraction force between the second magnetic pole (712) and the fourth magnetic component (720).

6. The hinge mechanism according to claim 5, characterized in that: The third magnetic member (710) and the fourth magnetic member (720) are both arc-shaped structures, the third magnetic member (710) and the fourth magnetic member (720) are arranged around the connecting shaft (400), and the third magnetic member (710) has the first magnetic pole (711) and the second magnetic pole (712) in the direction around the connecting shaft (400); When the hinge mechanism is in an unfolded state, the first magnetic pole (711) is in contact with the fourth magnetic member (720), and the second magnetic pole (712) is separated from the fourth magnetic member (720); When the hinge mechanism is in a folded state, the second magnetic pole (712) is in contact with the fourth magnetic member (720), and the first magnetic pole (711) is separated from the fourth magnetic member (720).

7. The hinge mechanism according to claim 1, characterized in that: The first connecting portion (210) has a plurality of first protrusions (213) spaced apart along the extension direction of the connecting shaft (400), and the second connecting portion (110) has a plurality of second protrusions (113) spaced apart along the extension direction of the connecting shaft (400). The plurality of first protrusions (213) and the plurality of second protrusions (113) are cross-distributed, and both the plurality of first protrusions (213) and the plurality of second protrusions (113) are provided with connecting holes. The connecting shaft (400) is passed through the plurality of connecting holes of the first connecting portion (210) and the second connecting portion (110), and in the extension direction of the connecting shaft (400), the end faces of the first protrusions (213) are dampedly matched with the end faces of the second protrusions (113).

8. The hinge mechanism according to claim 1, characterized in that: In the extension direction of the connecting shaft (400), the end surface of the first protrusion (213) and the end surface of the second protrusion (113) are both planes.

9. The hinge mechanism according to claim 1, characterized in that: The second end of the swing arm (200) has a guide rail (220), the connecting bracket (300) has a guide groove (310), the guide rail (220) is slidably arranged in the guide groove (310), the first magnetic member (500) is arranged on the guide rail (220), and the second magnetic member (600) is arranged in the guide groove (310).

10. The hinge mechanism according to claim 1, characterized in that: The hinge bracket (100) is provided with the swing arms (200) on both sides perpendicular to the extension direction of the connecting shaft (400), and the hinge mechanism further comprises a synchronous gear set (800), wherein the synchronous gear set (800) is provided on the hinge bracket (100), and the swing arms (200) located on both sides of the hinge bracket (100) are connected via the synchronous gear set (800).

11. An electronic device, characterized in that: The hinge mechanism comprises the hinge mechanism according to any one of claims 1 to 10.

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