Folding mechanism and foldable electronic equipment

Abstract

The invention provides a folding mechanism and foldable electronic equipment, the folding mechanism comprises a main shaft part and a mounting plate which are connected with each other, the main shaft part comprises a first sliding groove, one side, close to the main shaft part, of the mounting plate comprises a plug pin and a second sliding groove, and the position of the second sliding groove corresponds to the position of the first sliding groove; the plug pin can slide in the second sliding groove in the first direction. When the folding mechanism is in a folded state, one end, close to the main shaft part, of the bolt can slide into the first chute; the main shaft part further comprises a first key, at least part of the first key is located in the main shaft part, when at least part of the end, close to the main shaft part, of the plug pin is located in the first sliding groove, at least part of the first key makes contact with the end, located in the first sliding groove, of the plug pin, and the first key is used for pushing the plug pin so that the plug pin can be separated from the main shaft part. According to the folding mechanism and the foldable electronic equipment provided by the embodiment of the invention, the flattening state angles of the folding mechanism and the foldable electronic equipment can be improved.

Description

Technical Field

[0001] This application relates to the technical field of electronic devices, and more particularly, to a folding mechanism and a foldable electronic device. Background Art

[0002] Foldable electronic devices have become the mainstream development direction in recent years because they have a large screen size in the unfolded state and can provide a good visual and operating experience. The flatness of a foldable electronic device in the unfolded state easily affects the aesthetics of the foldable electronic device and the user experience. In particular, for outward-foldable electronic devices, their unfolded state usually relies on the rotation shaft for positioning, and there is a relatively obvious looseness after being flattened. Moreover, after multiple foldings, the damping force of the rotation shaft mechanism decays, making the electronic device prone to a hunchback phenomenon in the flattened state.

[0003] Therefore, it is crucial to improve the flattened state angle problem of foldable electronic devices. Summary of the Invention

[0004] This application provides a folding mechanism and a foldable electronic device, which can improve the flattened state angle of the folding mechanism and the foldable electronic device.

[0005] In a first aspect, a folding mechanism is provided, including a main shaft portion and a mounting plate, the mounting plate is connected to the main shaft portion; the main shaft portion includes a first chute, the first chute extends along a first direction, when the folding mechanism is in the unfolded state, the first direction is parallel to the main plane of the mounting plate and perpendicular to the axial direction of the main shaft portion; on a side of the mounting plate close to the main shaft portion, there are a plug pin and a second chute, the second chute extends along the first direction, and the position of the second chute corresponds to the position of the first chute, at least a part of the plug pin is disposed in the second chute, and the plug pin is slidably connected to the second chute; when the folding mechanism is in the folded state, the plug pin is located outside the first chute, when the folding mechanism is in the unfolded state, at least one end of the plug pin close to the main shaft portion is at least partially located in the first chute; the main shaft portion further includes a first button, at least a part of the first button is located inside the main shaft portion, when at least one end of the plug pin close to the main shaft portion is at least partially located in the first chute, at least a part of the first button is in contact with one end of the plug pin located in the first chute, and the first button is used to push the plug pin to separate the plug pin from the main shaft portion.

[0006] In the embodiments provided by this application, a first chute and a second chute are respectively arranged on the main shaft portion and the mounting plate. At least a part of the latch pin is arranged in the second chute. Moreover, when the folding mechanism is in the folded state, one end of the latch pin close to the main shaft portion is arranged in the first chute, so that the main shaft portion and the mounting plate can be controlled to be in the same plane through the latch pin, improving the flattened state angle of the folding mechanism and the foldable electronic device. In addition, the main shaft portion includes a first button. When one end of the latch pin close to the main shaft portion is located in the first chute, at least a part of the first button is in contact with one end of the latch pin located in the first chute. By pressing the first button, the latch pin can be pushed to slide and separated from the main shaft portion, and thus the normal folding of the folding mechanism and the electronic device can be realized.

[0007] In combination with the first aspect, in some implementation manners of the first aspect, the folding mechanism further includes: an elastic member, the elastic member is arranged in the second chute, and the elastic member is connected to the latch pin; when the folding mechanism is in the folded state, the length of the elastic member is a first length, and when the folding mechanism is in the unfolded state, the length of the elastic member is a second length, and the second length is greater than the first length.

[0008] In combination with the first aspect, in some implementation manners of the first aspect, one end of the latch pin far from the main shaft portion includes a first mounting hole, and the elastic member is connected to the latch pin through the first mounting hole.

[0009] In the embodiments provided by this application, by arranging an elastic member in the second chute and connecting the elastic member to the latch pin, the elastic force generated by the deformation of the elastic member can be used to push the latch pin to move along the first direction and slide into the first chute, so as to improve the flattened state angle of the folding mechanism and the electronic device.

[0010] In combination with the first aspect, in some implementation manners of the first aspect, the mounting plate further includes a third chute, the third chute extends along the first direction, and the projection of the third chute in the direction perpendicular to the mounting plate is located in the region where the projection of the second chute in the direction perpendicular to the mounting plate is located. The latch pin includes a stop portion, at least a part of the stop portion is received in the third chute, and the stop portion is slidably connected to the third chute; when one end of the latch pin close to the main shaft portion is received in the first chute, the stop portion is in contact with one end of the third chute close to the main shaft portion.

[0011] In the embodiments provided by this application, the mounting plate includes a third chute and the latch pin includes a stop portion, and the stop portion is slidably connected to the third chute, which can limit the sliding of the latch pin to prevent the latch pin from separating from the mounting plate. Moreover, the stop portion and the third chute can further control the sliding direction of the latch pin, so that the latch pin slides along the first direction.

[0012] In combination with the first aspect, in some implementations of the first aspect, the main shaft portion further includes a fourth chute, the fourth chute extends along the axial direction of the main shaft portion and is in communication with the first chute; at least a part of the first button is received in the fourth chute, and when the first button is pressed, the first button can slide in the fourth chute along the axial direction of the main shaft portion and push the bolt away from the main shaft portion along the first direction.

[0013] In the embodiment provided by the present application, the main shaft portion includes a fourth chute, and the fourth chute extends along the axial direction of the main shaft portion, so that the first button can slide along the axial direction of the main shaft portion; the fourth chute is in communication with the first chute, which enables the first button to come into contact with the bolt, so as to facilitate the bolt to be pushed away from the main shaft portion along the axial direction of the main shaft portion by the movement of the first button along the axial direction of the main shaft portion and separate from the main shaft portion, thereby enabling the normal folding of the folding mechanism and the electronic device.

[0014] In combination with the first aspect, in some implementations of the first aspect, the first button includes a first inclined surface, and the first inclined surface is disposed at one end of the first button close to the bolt; the bolt includes a second inclined surface, and the second inclined surface is disposed at one end of the bolt close to the main shaft portion, and the second inclined surface is in contact with the first inclined surface; when the first button is pressed, the first button can push the bolt away from the main shaft portion along the first direction through the first inclined surface and the second inclined surface.

[0015] In the embodiment provided by the present application, the first button includes a first inclined surface, the bolt includes a second inclined surface, and the first inclined surface is in contact with the second inclined surface. Through the transmission cooperation of the first inclined surface and the second inclined surface, it is more convenient for the first button to push the bolt away from the main shaft portion and separate from the main shaft portion to achieve the normal folding of the folding mechanism and the electronic device.

[0016] In combination with the first aspect, in certain implementations of the first aspect, the folding mechanism further includes a spring arm, and the spring arm is connected to an end of the first button close to the bolt; the main shaft portion further includes a clutch mechanism, and the clutch mechanism includes one or more guiding grooves, the dimensions of the one or more guiding grooves along a second direction are different, the second direction is perpendicular to the first direction and perpendicular to the axial direction of the main shaft portion, and the one or more guiding grooves form a first limiting portion and a second limiting portion, the first limiting portion is located at an end of the clutch mechanism close to the first button, and the second limiting portion is located at an end of the clutch mechanism away from the first button; when the first button is pressed, an end of the spring arm away from the first button can slide along a trajectory formed by the one or more guiding grooves, and when the first button is in a first state, the end of the spring arm away from the first button is received in the first limiting portion, and when the first button is in a second state, the end of the spring arm away from the first button is received in the second limiting portion.

[0017] In the embodiments provided in the present application, the main shaft portion includes a clutch mechanism, and the clutch mechanism includes a first limiting portion and a second limiting portion. An end of the spring arm away from the first button is received in the first limiting portion in the first state and is received in the second limiting portion in the second state, which can achieve the steady state of the first button.

[0018] In combination with the first aspect, in certain implementations of the first aspect, the mounting plate further includes a cover plate and a fifth chute, the fifth chute extends along the first direction, the fifth chute is located on a side of the second chute away from the third chute, and a projection of the second chute along a direction perpendicular to the mounting plate is located within a region where a projection of the fifth chute along a direction perpendicular to the mounting plate is located, and the cover plate is disposed in the fifth chute.

[0019] In the embodiments provided in the present application, the mounting plate includes a fifth chute and a cover plate, which can make it easy to install the bolt and the elastic member assembly on the mounting plate.

[0020] In a second aspect, a foldable electronic device is provided, and the foldable electronic device includes the folding mechanism as described in the first aspect or any possible implementation of the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of a foldable electronic device in an unfolded state;

[0022] Figure 2 is a schematic structural diagram of a foldable electronic device in an inner-folded state;

[0023] Figure 3It is a schematic structural diagram of a foldable electronic device in an outward-folded state;

[0024] Figure 4 It is a schematic structural diagram of a hunchback phenomenon of a foldable electronic device;

[0025] Figure 5 It is a schematic structural diagram of the foldable electronic device provided by the embodiment of the present application in an unfolded state;

[0026] Figure 6 It is an exploded view of a partial structure of the foldable electronic device provided by the embodiment of the present application;

[0027] Figure 7 It is an enlarged view of a partial structure of the foldable electronic device provided by the embodiment of the present application;

[0028] Figure 8 It is a schematic cross-sectional structure diagram of the foldable electronic device provided by the embodiment of the present application;

[0029] Figure 9 It is a schematic cross-sectional structure diagram of the foldable electronic device provided by the embodiment of the present application;

[0030] Figure 10 It is an enlarged view of a partial structure of the foldable electronic device provided by the embodiment of the present application;

[0031] Figure 11 It is a schematic cross-sectional structure diagram of the foldable electronic device provided by the embodiment of the present application;

[0032] Figure 12 It is a schematic cross-sectional structure diagram of the foldable electronic device provided by the embodiment of the present application;

[0033] Figure 13 It is a schematic structural diagram of the bolt provided by the embodiment of the present application;

[0034] Figure 14 It is a schematic structural diagram of the first button and the elastic arm provided by the embodiment of the present application;

[0035] Figure 15 It is a schematic structural diagram of the first button and the bolt provided by the embodiment of the present application;

[0036] Figure 16 It is a schematic structural diagram of the first button and the bolt provided by the embodiment of the present application;

[0037] Figure 17 It is an enlarged view of a partial structure of the clutch mechanism provided by the embodiment of the present application. Detailed implementation manners

[0038] Next, the technical solutions in the present application will be described with reference to the accompanying drawings.

[0039] Reference to "one embodiment" or "some embodiments" or the like described in this specification means that a specific feature, structure, or characteristic described in connection with that embodiment is included in one or more embodiments of the present application. Thus, statements such as "in one embodiment", "in some embodiments", "in other some embodiments", "in still other embodiments", etc., which appear in different places in this specification, do not necessarily all refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in another way.

[0040] In various embodiments of the present application, the first, second, etc. are only used to indicate that multiple objects are different. For example, the first deployment plan and the second deployment plan are only used to indicate different deployment plans. It should not have any impact on the nature and quantity of the deployment plan itself, etc. The above first, second, etc. should not impose any restrictions on the embodiments of the present application.

[0041] The terms "comprise", "include", "have" and their variants all mean "including but not limited to", unless otherwise specifically emphasized in another way.

[0042] In the embodiments of the present application, unless otherwise clearly specified and limited, the terms "install" and "connect" should be understood in a broad sense. For example, "connect" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed connection" means that the two are connected and the relative positional relationship after connection remains unchanged. "Rotational connection" means that the two are connected and can rotate relative to each other after connection. "Sliding connection" means that the two are connected and can slide relative to each other after connection. The orientation terms mentioned in the embodiments of the present application, such as "upper", "lower", "inner", "outer", etc., are only with reference to the direction of the accompanying drawings. Therefore, the orientation terms used are for better and clearer description and understanding of the embodiments of the present application, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation on the embodiments of the present application.

[0043] Figure 1 It is a schematic structural diagram of a foldable electronic device 100 provided by an embodiment of the present application. The foldable electronic device 100 can be an electronic device with a folding function such as a mobile phone, a tablet computer, a watch, an e-reader, a laptop computer, a wearable device, etc. Figure 1 The illustrated embodiment is described by taking a foldable mobile phone as an example.

[0044] See Figure 1In the structure shown, the foldable electronic device 100 may include a flexible display screen 110, a first middle frame 121, a second middle frame 122, and a folding mechanism 123. The folding mechanism 123 may be disposed between the first middle frame 121 and the second middle frame 122, and the first middle frame 121 and the second middle frame 122 may be rotatably connected to the folding mechanism 123. Under the action of the folding mechanism 123, the first middle frame 121 and the second middle frame 122 may approach or move away from each other, so as to realize the folding or unfolding of the foldable electronic device 100. A certain accommodation space may be provided in the first middle frame 121 and the second middle frame 122 to accommodate various electronic components of the foldable electronic device 100, such as a circuit board, an antenna structure, a sensor, a sound cavity, a motor, etc.

[0045] Figure 1 The part filled with a dot matrix pattern may schematically represent the flexible display screen 110. The display panel of the flexible display screen 110 may be, for example, a liquid crystal flexible display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode (AMOLED), a flexible light-emitting diode (FLED), a quantum dot light-emitting diode (QLED), or any one of the like. The embodiments of the present application do not make any limitation thereto.

[0046] The flexible display screen 110 may include a first display portion 111 corresponding to the first middle frame 121, a second display portion 112 corresponding to the second middle frame 122, and a third display portion 113 corresponding to the folding mechanism 123. The third display portion 113 may be connected between the first display portion 111 and the second display portion 112.

[0047] Under the action of the folding mechanism, the first display portion 111 of the flexible display screen 110 and the second display portion 112 of the flexible display screen 110 may approach or move away from each other, so that the flexible display screen 110 can be folded or unfolded.

[0048] Figure 1The foldable electronic device 100 shown is currently in an unfolded state, or can also be referred to as a flattened state. This unfolded state can refer to a state where the included angle between the first middle frame 121 and the second middle frame 122 is 180°. Correspondingly, the included angle between the first display portion 111 and the second display portion 113 of the flexible display screen 110 can be the same as the included angle between the first middle frame 121 and the second middle frame 122.

[0049] Figure 2 , Figure 3 respectively show two possible folding states of the foldable electronic device 100. This folding state can refer to a state where the two middle frames of the foldable electronic device are as close to each other as possible. Among them, Figure 2 shows the inner-fold state of the foldable electronic device 100. In this folding state, the flexible display screen 110 is housed between the first middle frame 121 and the second middle frame 122. The first display portion 111 and the second display portion 112 are attached to each other, and the first middle frame 121, the flexible display screen 110, and the second middle frame 122 are stacked in sequence.

[0050] Figure 3 shows the outer-fold state of the foldable electronic device 100. In this folding state, the flexible display screen 110 is disposed outside the middle frame. The side of the first middle frame 121 facing away from the flexible display screen 110 is attached to the side of the second middle frame 122 facing away from the flexible display screen 110, and the first display portion 111, the first middle frame 121, the second middle frame 122, and the second display portion 112 are stacked in sequence.

[0051] Figure 2 and Figure 3 The folding states shown can be an up-and-down folding state or a left-and-right folding state. That is to say, the flexible display screen 110 can be folded along the x-axis direction or the y-axis direction.

[0052] For the inner-fold type foldable electronic device 100, that is, Figure 2 the foldable electronic device 100 shown, the unfolded state is usually stopped by the middle frame. That is to say, the size of the included angle between the first middle frame 121 and the second middle frame 122 can be determined by the degree of fitting between the two side edges of the first middle frame 121 and the second middle frame 122 that are close to each other. For the outer-fold type foldable electronic device 100, that is, Figure 3The foldable electronic device shown is usually stopped in the unfolded state by the folding mechanism 123. That is to say, the angle between the first middle frame 121 and the second middle frame 122 in the flattened state can be determined by the structure of the folding mechanism 123. Therefore, for the outward-foldable foldable electronic device 100, the looseness of the device structure is more obvious after unfolding. After multiple folds, the damping force in the folding mechanism 123 decays, which easily causes the foldable electronic device 100 to have a hunchback phenomenon. In addition, after the foldable electronic device 100 is folded and placed statically for a long time, the screen rewinding force becomes larger, and coupled with the influence of the gravity of the sub-frame, it will also cause the foldable electronic device 100 to have a hunchback problem. This hunchback phenomenon can be as Figure 4 shown, that is, in the unfolded state, the angle between the first middle frame 121 and the second middle frame 122 is less than 180°, which affects the aesthetic appearance of the foldable electronic device 100.

[0053] Based on the above problems, the embodiment of the present application provides a folding mechanism, which can effectively improve the flattening degree of the foldable electronic device in the unfolded state. The following combines Figures 5 to 12 to introduce the folding mechanism provided by the embodiment of the present application in detail. Among them, Figure 5 is the overall structural schematic diagram of the electronic device provided by the embodiment of the present application, Figure 6 is the exploded view of the partial structure of the electronic device 100, Figures 7 to 9 are respectively the enlarged view of the partial structure, the sectional view of the partial structure along the xy plane, and the sectional view of the partial structure along the yz plane when the folding mechanism 123 is in the locked state, and Figure 9 the yz-plane sectional view shown can be the sectional view at the A-A position in Figure 7 . Figures 10 to 12 are respectively the top view of the partial structure, the sectional view of the partial structure along the xy plane, and the sectional view of the partial structure along the yz plane when the folding mechanism 123 is in the disengaged state, and Figure 12 the yz-plane sectional view shown can be the sectional view at the B-B position in Figure 10 . This partial structure can be the structure of the end of the electronic device 100 along the x-axis direction. In addition, to show the structure of each component in the display mounting plate 220, Figure 7 and Figure 10 do not show the structure of the cover plate 226 of the folding mechanism 123. The folding mechanism 123 in the embodiment of the present application can also be called a rotating shaft mechanism, a rotating device, a folding device, etc., and the present application does not limit this.

[0054] See Figures 5 to 12In the structure shown, the folding mechanism 123 may include a main shaft portion 210 and a mounting plate 220. The main shaft portion 210 may be arranged along the x-axis direction shown in the figure. The mounting plate 220 may be arranged on both sides of the main shaft portion 210, that is, on both sides of the main shaft portion 210 along the y-axis direction shown in the figure. And the mounting plate 220 may be fixedly connected to the middle frame. For example, the mounting plate 220 on the left side of the main shaft portion 210 may be connected to the first middle frame 121, and the mounting plate 220 on the right side of the main shaft portion 210 may be connected to the second middle frame 122. The mounting plate 220 may be fixedly connected to the middle frame or may be an integral structure with the middle frame. The embodiments of the present application do not limit this. When the foldable electronic device 100 is folded or unfolded, the first middle frame 121 and the second middle frame 122 may drive the corresponding mounting plates 220 to rotate around the main shaft portion 210 together to realize the folding or unfolding of the foldable electronic device 100.

[0055] On one side of the mounting plate 220 close to the main shaft portion 210, a latch 221 and a second chute 222 may be arranged. The second chute 222 may extend along a first direction. When the folding mechanism 123 is in the unfolded state, or in other words, when the electronic device 100 is in the unfolded state, the first direction may be parallel to the main plane of the mounting plate 220 and perpendicular to the axial direction of the main shaft portion 210. The axial direction of the main shaft portion 210 is the x-axis direction shown in the figure. The main plane of the mounting plate 220 may be the surface with a larger planar area of the mounting plate 220, that is, the xy plane shown in the figure. The first direction is the y-axis direction shown in the figure. The latch 221 may be partially arranged in the second chute 222 and may slide in the second chute 222 along the first direction. The structure of the latch 221 may refer to Figure 13 the structure shown. At least a part of the latch 221 being arranged in the second chute 222 may mean that the end of the latch 221 provided with the first mounting hole 2212 and the second mounting hole 2213 is arranged in the second chute 222. And, in any one of the unfolded state, the folded state or the intermediate state of the folding mechanism 123, the end of the latch 221 provided with the first mounting hole 2212 and the second mounting hole 2213 can be arranged in the second chute 222. Among them, when the folding mechanism 123 or the electronic device 100 is in the unfolded state, it may mean that the angle between the main planes of the mounting plates 220 on both sides of the main shaft portion 210 is 180°. When the folding mechanism 123 or the electronic device 100 is in the folded state, it may mean that the angle between the main planes of the mounting plates 220 on both sides of the main shaft portion 210 is 0°. When the folding mechanism 123 or the electronic device 100 is in the intermediate state, it may mean that the angle between the main planes of the mounting plates 220 on both sides of the main shaft portion 210 is between 0° and 180°.

[0056] Accordingly, the main shaft portion 210 may include a first sliding groove 211, which may also extend in the first direction, and the position of the first sliding groove 211 may correspond to the position of the second sliding groove 222, so that one end of the bolt 221 close to the main shaft portion 210 can slide into the first sliding groove 211 in the first direction. Exemplarily, the main shaft portion 210 may include a main inner shaft 210A and a main outer shaft 210B. When the folding mechanism 123 is disposed in the electronic device 100, the main outer shaft 210B may be the portion of the main shaft portion 210 away from the display screen 110, and the main inner shaft 210A may be the portion of the main shaft portion 210 close to the display screen 110. The main inner shaft 210A and the main outer shaft 210B may be fixedly connected, and there may be an accommodation space between the main inner shaft 210A and the main outer shaft 210B for accommodating components such as the bolt 221. The first sliding groove 211 may be disposed on the main outer shaft 210B and may penetrate the main outer shaft 210B in the first direction.

[0057] The corresponding positions of the first sliding groove 211 and the second sliding groove 222 may be that the positions of the first sliding groove 211 and the second sliding groove 222 correspond in the x-axis direction, and the width of the first sliding groove 211 may be greater than or equal to the width of the second sliding groove 222. For example, Figure 7 or Figure 11 as shown, the widths of the first sliding groove 211 and the second sliding groove 222 may be the dimensions of the first sliding groove 211 and the second sliding groove 222 in the x-axis direction respectively, so that when the bolt 221 slides in the first direction towards the main shaft portion 210, one end of the bolt 221 close to the main shaft portion 210 can slide into the main shaft portion 210. As Figure 9 and Figure 12 shown, the depths of the first sliding groove 211 and the second sliding groove 222 may also be the same and may be the same as the thickness of the bolt 221. The depths of the first sliding groove 211 and the second sliding groove 222 may be the dimensions of the first sliding groove 211 and the second sliding groove 222 in the z-axis direction respectively, and the thickness of the bolt 221 may be the dimension of the bolt 221 in the z-axis direction. The depth of the first sliding groove 211 may also be greater than the depth of the second sliding groove 222 and the thickness of the bolt 221, as long as it is ensured that one end of the bolt 221 close to the main shaft portion 210 can enter the first sliding groove 211. When the folding mechanism 123 is in the flattened state, that is, when the angle between the mounting plates 220 on both sides of the main shaft portion 210 is 180°, the bottom surface of the first sliding groove 211 and the bottom surface of the second sliding groove 222 may be in the same plane, for example, may be in the xy plane shown in the figure, so that one end of the bolt 221 close to the main shaft portion 210 can slide into the first sliding groove 211 in the first direction.

[0058] When one end of the bolt 221 close to the main shaft portion 210 slides into the first chute 211, the other end of the bolt 221 away from the main shaft portion 210 can be located in the second chute 222, so that the bolt 221 can control the mounting plate 220 and the main shaft portion 210 to be in the same plane, improving the flattening angle of the folding mechanism 123 and the electronic device 100, that is, making the flattening angle of the electronic device 100 be 180°; and, a part of the bolt 221 is located in the first chute 211 and the other part is located in the second chute 222, which can make the flattened structure of the electronic device 100 more stable and not prone to jitter problems, and the flattening angle of the electronic device 100 is not easily affected by the decrease in the damping force of the folding mechanism 123.

[0059] It should be noted that Figure 8 、 Figure 9 、 Figure 11 and Figure 12 The first chute 211 shown in the figure runs through the main shaft portion along the first direction. The first chute 211 may not run through the main shaft portion 210 along the first direction. For example, when the second chute 222 and the bolt 221 are provided on one side of the main shaft portion 210 and the first chute 211 and the bolt 221 are not provided on the other side, the first chute 211 may extend from the side of the main shaft portion 210 close to the bolt 221 to the center of the main shaft portion 210; for another example, when the second chute 222 and the bolt 221 are provided on both sides of the main shaft portion 210, the number of the first chutes 211 on the main shaft portion 210 may be the same as the number of the second chutes 222, and the positions may correspond to the positions of the second chutes 222. The first chutes 211 on both sides extend from the outer end surface of the main shaft portion 210 to the center of the main shaft portion 210, and the first chutes 211 on both sides may not be connected to each other. The positions of the second chutes 222 on the mounting plates 220 on both sides may not correspond to each other. Two first chutes 211 may be provided on the main shaft portion 210, corresponding to the positions of two second chutes 222 respectively, so that the bolts 221 on both sides of the main shaft portion 210 slide into the corresponding first chutes 211 respectively to achieve the forced flattening of the folding mechanism 123.

[0060] To enable the bolt 221 to slide into the corresponding first chute 211, the mounting plate 220 may further include an elastic member 223. At least part of the elastic member 223 may be disposed in the second chute 222, and one end of the elastic member 223 may be connected to the end of the bolt 221 away from the main shaft portion 210, and the other end may be connected to the end of the second chute 222. The setting direction of the elastic member 223 may also be the first direction, that is, the connection line between the two ends of the elastic member 223 may also be the y-axis direction shown in the figure. Thus, the elastic member 223 can be compressed or released along the first direction.

[0061] Accordingly, one end of the bolt 221 away from the main shaft portion 210 may include a first mounting hole 2212, see Figure 13 the schematic structural view of the bolt 221 shown. The number of the first mounting holes 2212 may be one or more, and the number of the first mounting holes 2212 may be the same as the number of the elastic members 223. One end of the elastic member 223 close to the bolt 221 may be fixedly connected to the bolt 221 through the first mounting hole 2212. For example, the bolt 221 may be fixedly connected to the elastic member 223 through the first mounting hole 2212 by means of welding, bonding, etc. One end of the elastic member 223 away from the bolt 221 may also be connected to the mounting plate 220 through the mounting holes on the mounting plate 220 (not shown in the figure).

[0062] When the mounting plate 220 unfolds around the main shaft portion 210, that is, when the included angle between the mounting plates 220 on both sides of the main shaft portion 210 is greater than 0° and less than 180°, one end of the bolt 221 close to the main shaft portion 210 may contact the area of the main shaft portion 210 other than the first chute 211, so that the bolt 221 may be subjected to the pressure from the main shaft portion 210. Further, the elastic member 223 may be subjected to the pressure from the bolt 221, so that the elastic member 223 is compressed. In this state, the length of the elastic member 223 may be the first length. Further, when the folding mechanism 123 is in the unfolded state, that is, when the included angle between the mounting plates 220 on both sides of the main shaft portion 210 is 180°, since the position of the first chute 211 corresponds to the position of the second chute 222, and the position of the bolt 221 also corresponds to the position of the first chute 211, the pressure on the bolt 221 from the main shaft portion 210 may be removed, and the pressure on the elastic member 223 from the bolt 221 may also be removed. Further, the elastic member 223 may be restored from the compressed state to the relaxed state, or the degree of compression of the elastic member 223 may be reduced. The elastic member 223 may push the bolt 221 to slide into the first chute 211 along the first direction by elastic force, so that one end of the bolt 221 close to the main shaft portion 210 may be received in the first chute 211, and one end of the bolt 221 away from the main shaft portion 210 may still be received in the second chute 222, thereby improving the flattening angle of the folding mechanism 123. That is, when the folding mechanism is in the unfolded state, the length of the elastic member 223 may be the second length, and the second length may be greater than the first length. When one end of the bolt 221 close to the main shaft portion 210 is received in the first chute 211, the state of the folding mechanism 123 may also be referred to as the locked state. When one end of the bolt 221 close to the main shaft portion 210 does not slide into the first chute 211, the state of the folding mechanism 123 may be referred to as the disengaged state.

[0063] Exemplarily, the elastic member 223 can be a spring, or the elastic member 223 can also be other components that can undergo elastic deformation. The present application does not limit this.

[0064] In some embodiments, the mounting plate 220 may further include a third chute 224. As Figure 6 or Figure 9 、 Figure 12 shown, the third chute 224 can extend along the first direction, and the projection of the third chute 224 on the mounting plate 220 in a direction perpendicular to the mounting plate 220 can be located within the region where the projection of the second chute 222 on the mounting plate 220 in a direction perpendicular to the mounting plate 220 is located. That is to say, the third chute 224 can be arranged below the second chute 222 along the z-axis direction shown in the figure, and the size of the third chute 224 can be smaller than the size of the second chute 222. The size of the third chute 224 being smaller than the size of the second chute 222 can mean that the dimension of the third chute 224 along the x-axis direction can be smaller than the dimension of the second chute 222 along the x-axis direction, and the dimension of the third chute 224 along the y-axis direction can be smaller than the dimension of the second chute 222 along the y-axis direction.

[0065] Correspondingly, the bolt 221 can include a stop portion 2211. The structure of the bolt 221 can refer to the structure shown in Figure 13 . When the bolt 221 is received in the second chute 222, the stop portion 2211 can be received in the third chute 224, and when the bolt 221 slides in the second chute 222 along the first direction, the stop portion 2211 can slide in the third chute 224 along the first direction.

[0066] The third chute 224 and the stop portion 2211 can limit the sliding of the bolt 221. Exemplarily, when the folding mechanism 123 is in the unfolded state, the bolt 221 slides along the first direction towards the direction close to the main shaft portion 210. Correspondingly, the stop portion 2211 can also slide along the first direction towards the direction close to the main shaft portion 210. And when one end of the bolt 221 close to the main shaft portion 210 slides into the first chute 211, one side of the stop portion 2211 close to the main shaft portion 210 can be in contact with one side of the first chute 211 close to the main shaft portion 210, preventing the bolt 221 from disengaging from the second chute 222 and separating from the mounting plate 220 under the pushing action of the spring. When the mounting plate 220 is folded around the main shaft portion 210, the bolt 221 can slide along the first direction away from the main shaft portion 210 under the pushing action of the first button 212. Correspondingly, the stop portion 2211 can also slide along the first direction away from the main shaft portion 210. When the bolt 221 is separated from the main shaft portion 210, one side of the stop portion 2211 away from the main shaft portion 210 can be in contact with one side of the third chute 224 away from the main shaft portion 210.

[0067] It should be noted that when one end of the bolt 221 close to the main shaft portion 210 slides into the first chute 211, the surface of the stop portion 2211 close to the main shaft portion 210 may not be in contact with the surface of the first chute 211 close to the main shaft portion 210. For example, the main shaft portion 210 may include a stopper (not shown in the figure), the stopper may be provided at the end of the first chute 211, the length of the bolt 221 may be greater than the length of the first chute 211, and when one end of the bolt 221 close to the main shaft portion 210 slides into the first chute 211, the sliding of the bolt 221 can be limited by the stopper to prevent the bolt 221 from sliding out of the second chute 222. Similarly, when the bolt 221 is separated from the main shaft portion 210, the surface of the stop portion 2211 away from the main shaft portion 210 may not be in contact with the surface of the third chute 224 away from the main shaft portion 210. For example, when the bolt 221 is separated from the main shaft portion 210, the surface of the bolt 221 away from the main shaft portion 210 may be in contact with the surface of the second chute 222 away from the main shaft portion 210 to limit the sliding of the bolt 221.

[0068] Since when the folding mechanism 123 is in the unfolded state, or rather, when the folding mechanism 123 is in the locked state, a part of the bolt 221 is located in the first chute 211 and the other part is located in the second chute 222, the folding of the folding mechanism 123 is easily blocked by the bolt 221. To enable the folding mechanism 123 to fold normally, it is also necessary to separate the bolt 221 from the first chute 211. In this example, the folding mechanism 123 may further include a first button 212 and a fourth chute 215, and the bolt 221 is pushed to separate from the main shaft portion 210 by the sliding of the first button 212 in the fourth chute 215.

[0069] Specifically, as Figure 6As shown, the fourth chute 215 can be disposed inside the main shaft portion 210. Exemplarily, the fourth chute 215 can be disposed on a side of the main outer shaft 210B close to the main inner shaft 210A, and the fourth chute 215 can extend along the axial direction of the main shaft portion 210, that is, can extend along the x-axis direction shown in the figure. The fourth chute 215 can communicate with the first chute 211. Exemplarily, when the second chutes 222 and the pins 221 are disposed on the mounting plates 220 on both sides of the main shaft portion 210, the positions of the second chutes 222 on both sides can correspond to each other, and the shapes of the first chute 211 and the fourth chute 215 along the xy plane can be approximately in a "cross" shape; when the second chutes 222 and the pins 221 are disposed on only one of the mounting plates 220 on both sides of the main shaft portion 210, the shapes of the first chute 211 and the fourth chute 215 along the xy plane can be approximately in a "T" shape (not shown in the figure). Further, the bottom surface of the fourth chute 215 can be in the same plane as the bottom surface of the first chute 211, so that the first button 212 can contact the pin 221 through the fourth chute 215 and the first chute 211, and when the first button 212 slides along the axial direction of the main shaft portion 210 in the fourth chute 215, the pin 221 can be pushed to slide in the first chute 211 in the first direction.

[0070] The structure of the first button 212 can be referred to Figure 14 , wherein, Figure 14 in (a) is a front structural schematic diagram of the first button 212, that is, the structure when looking at the first button 212 from the side close to the main inner shaft 210A of the first button 212, Figure 14 in (b) is a back structural schematic diagram of the first button 212, that is, the structure when looking at the first button 212 from the side far from the main inner shaft 210A of the first button 212. The first button 212 can include a first part 2121 and a second part 2122, and the first part 2121 can be fixedly connected to the second part 2122, or the first part 2121 and the second part 2122 can be an integral structure.

[0071] Continue to refer to Figures 7 to 12The structure of the folding mechanism 123 shown. The first part 2121 can be arranged outside the main shaft part 210 to facilitate the user to press the first button 212. The shape of the first part 2121 can match the shape of the main shaft part 210. For example, when the first button 212 is not pressed, the outer end face of the first part 2121 parallel to the yz plane shown can be in the same plane as the outer end face of the main shaft part 210 parallel to the yz plane shown, jointly forming a circular structure, so that the external lines of the folding mechanism 123 and the electronic device 100 are smoother, and the aesthetics of the appearance of the folding mechanism 123 and the electronic device 100 is improved. The second part 2122 can be arranged inside the main shaft part 210 and can be accommodated in the fourth chute 215. The width of the second part 2122 can be the same as the width of the fourth chute 215. The widths of the second part 2122 and the fourth chute 215 can respectively refer to the dimensions of the second part 2122 and the fourth chute 215 along the y-axis direction shown. When the user presses the first part 2121, under the limiting action of the fourth chute 215, the first button 212 can slide along the axial direction of the main shaft part 210. Among them, the second part 2122 can slide in the fourth chute 215 along the axial direction of the main shaft part 210, that is, slide in the fourth chute 215 along the positive x-axis direction shown. For example, the first button 212 can be changed from Figure 7 the state shown to Figure 10 the state shown.

[0072] Since the fourth chute 215 is communicated with the first chute 211, one end of the first button 212 close to the latch 221 can be in contact with the latch 221. When the first button 212 is pressed and moves in the positive x-axis direction, it can push the latch 221 away from the main shaft part 210 along the first direction and separate from the main shaft part 210.

[0073] In some embodiments, the first button 212 can include a first inclined surface 2123. The first inclined surface 2123 can be arranged at one end of the first button 212 close to the latch 221, that is, at one end of the second part 2122 far from the first part 2121. The dimension of the part of the first button 212 provided with the first inclined surface 2123 in the first direction can gradually increase from the end far from the first part 2121 to the end close to the first part 2121. When the latches 221 are arranged on the mounting plates 220 on both sides of the main shaft part 210, the cross-sectional shape of the part of the first button 212 provided with the first inclined surface 2123 in the xy plane can be in a "V" shape.

[0074] Accordingly, one end of the bolt 221 close to the main shaft portion 210 may include a second inclined surface 2213, and the second inclined surface 2213 may be mutually attached to the first inclined surface 2123. When the folding mechanism 123 is in the unfolded state, or rather, when the folding mechanism 123 is in the locked state, one end of the bolt 221 close to the main shaft portion 210 may be located in the first sliding groove 211. In this state, the second inclined surface 2213 and the first inclined surface 2123 are mutually attached and the contact area reaches the maximum, as Figure 8 shown. When pressing the first button 212, the first button 212 receives a pressure in the positive x-axis direction and moves in the positive x-axis direction. Thus, the second inclined surface 2213 is squeezed by the first inclined surface 2123. Among them, the bolt 221 located on the left side of the main shaft portion 210 receives a pressure in the negative y-axis direction and can move in the negative y-axis direction, and the bolt 221 located on the right side of the main shaft portion 210 receives a pressure in the positive y-axis direction and can move in the positive y-axis direction. As the moving distance of the first button 212 in the positive x-axis direction increases, the contact area between the first inclined surface 2123 and the second inclined surface 2213 can gradually decrease until the bolt is separated from the main shaft portion, that is, it can change from the state shown in Figures 7 to 9 to the state shown in Figures 10 to 12 When the bolt 221 is separated from the main shaft portion 210, the folding mechanism can be folded around the main shaft portion 210, and the folding process is not easily blocked by the bolt 221.

[0075] For the folding mechanism 123 described above, the first button 212 includes a first inclined surface 2123, and the bolt 221 includes a second inclined surface 2213. The separation of the bolt 221 from the main shaft portion 210 is achieved through the mutual cooperation of the first inclined surface 2123 and the second inclined surface 2213. The folding mechanism may also be such that only the first button 212 includes a first inclined surface 2123 while the bolt 221 does not include a second inclined surface 2213, or the first button 212 does not include a first inclined surface 2123 while the bolt 221 includes a second inclined surface 2213.

[0076] As Figure 15 shown, when the first button 212 includes a first inclined surface 2123 while the bolt 221 does not include a second inclined surface 2213, the structure of the first inclined surface 2123 of the first button 212 may be similar to the structure of the first inclined surface 2123 described above. The cross-sectional shape of one end of the bolt 221 close to the main shaft portion 210 along the xy plane may be rectangular. When the folding mechanism 123 is in the unfolded state, the apex angle of the bolt 221 may be in contact with the first inclined surface 2123 and may be located at the end position of the first inclined surface 2123 far from the first portion 2121, as Figures 6 to 12 described, and as Figure 15As shown in (a) therein. When pressing the first button 212, the first button 212 is subjected to a pressure in the positive x-axis direction and moves in the positive x-axis direction. Thus, the latch 221 can be subjected to a pressure from the first button 212 in the first direction. Among them, the latch 221 located on the left side of the main shaft portion 210 is subjected to a pressure in the negative y-axis direction from the first button 212 and moves in the negative y-axis direction, and the latch 221 located on the right side of the main shaft portion 210 is subjected to a pressure in the positive y-axis direction and moves in the positive y-axis direction. As the moving distance of the first button 212 in the positive x-axis direction increases, the vertex angle of the latch 221 in contact with the first inclined surface 2123 moves from the end of the first inclined surface 2123 far from the first portion 2121 to the end close to the first portion 2121, that is, it can be from Figure 15 the state shown in (a) therein becomes Figure 15 the state shown in (b) therein until the latch 221 is separated from the main shaft portion 210.

[0077] Similarly, as Figure 16 shown, when the first button 212 does not include the first inclined surface 2123 and the latch 221 includes the second inclined surface 2213, the structure of the second inclined surface 2213 of the latch 221 can be the same as the structure of the second inclined surface 2213 described above Figures 6 to 12 and the cross-sectional shape of the end of the second portion 2122 far from the first portion 2121 along the xy plane can be rectangular. When the folding mechanism 123 is in the unfolded state, the vertex angle of the second portion 2122 can be in contact with the second inclined surface 2213 and can be located at the end position of the second inclined surface 2213 far from the main shaft portion 210, as Figure 16 shown in (a) therein. When pressing the first button 212, the first button 212 is subjected to a pressure in the positive x-axis direction and moves in the positive x-axis direction. Thus, the latch 221 can be subjected to a pressure from the first button 212 in the first direction. Among them, the latch 221 located on the left side of the main shaft portion 210 is subjected to a pressure in the negative y-axis direction and moves in the negative y-axis direction, and the latch 221 located on the right side of the main shaft portion 210 is subjected to a pressure in the positive y-axis direction and moves in the positive y-axis direction. As the moving distance of the first button 212 in the positive x-axis direction increases, the vertex angle of the latch 221 in contact with the second inclined surface 2213 of the first button 212 can move from the end of the second inclined surface 2213 far from the main shaft portion 210 to the end close to the main shaft portion 210, that is, it can be from Figure 16 the state shown in (a) therein becomes Figure 16 the state shown in (b) therein until the latch 221 is separated from the main shaft portion 210.

[0078] When the first button 212 includes a first inclined surface 2123, a partial area of the first inclined surface 2123 may be located outside the main shaft portion 210. For example, the projection of the end area of the first inclined surface 2123 close to the first portion 2121 in the z-axis direction may not overlap with the projection of the main outer shaft 210B in the z-axis direction, and the cross-sectional shape of the overall structure of the first button 212 along the xy plane may be in the shape of an arrow shown in the figure. When the first button 212 moves in the positive x-axis direction and the outer end surface of the first portion 2121 is flush with the outer end surface of the main shaft portion 210, the area of the first inclined surface 2123 located outside the main shaft portion 210 may be in contact with the upper end surface of the first sliding groove 211 in the x-axis direction, thereby limiting the sliding of the first button 212 and preventing the first button 212 from detaching from the main shaft portion 210.

[0079] In some embodiments, the folding mechanism 123 may further include a spring arm 213. As Figure 14 shown, the spring arm 213 may be connected to one end of the first button 212 close to the pin 221, that is, connected to the end of the second portion 2122 away from the first portion 2121, and the spring arm 213 may be rotatably connected to the first button 212. For example, one end of the first button 212 close to the pin 221 may include a mounting hole 2124, the mounting hole 2124 may extend in a second direction, the second direction may be perpendicular to the first direction and perpendicular to the axial direction of the main shaft portion 210, the second direction may be the z-axis direction shown in the figure, one end of the spring arm 213 close to the first button 212 may be disposed in the mounting hole 2124, and the spring arm 213 may rotate around the mounting hole 2124. One end of the spring arm 213 away from the first button 212 may be subjected to a pressure in the second direction, that is, may be subjected to a pressure in the negative z-axis direction shown in the figure, so that one end of the spring arm 213 is in contact with the clutch mechanism 214 and can slide in the clutch mechanism 214. The pressure of the spring arm 213 in the second direction may come from the structural assembly relationship between the spring arm 213 and the first button 212. The spring arm 213 may be used to achieve the steady state of the first button 212 in the locked state and the clutch state.

[0080] Correspondingly, the main shaft portion 210 may include a clutch mechanism 214. The clutch mechanism 214 may also be referred to as a cam mechanism. That is to say, the clutch mechanism 214 may be in the shape of a cam. The present application does not limit the name of the clutch mechanism. The structure of the clutch mechanism 214 may be referred to Figure 17 the partial enlarged view of the folding mechanism 123 shown in the figure. Among them, Figure 17 (a) is the state of the spring arm 213 in the clutch mechanism 214 when the folding mechanism 123 is in the locked state. Figure 17In (b), it shows the state of the elastic arm 213 in the clutch mechanism 214 when the folding mechanism 123 is in the disengaged state. The clutch mechanism 214 may include a protruding portion 2141 and a recessed portion 2142. The protruding portion 2141 may be located in the central region of the clutch mechanism 214, and the recessed portion 2142 may be located on the outer periphery of the protruding portion 2141. One end of the elastic arm 213 away from the first button 212 may be disposed in the recessed portion 2142 and may slide in the recessed portion 2142. The recessed portion 2142 may include one or more guiding grooves, and the dimensions of the one or more guiding grooves in the second direction may be different, or rather, the depths of the one or more guiding grooves may be different. In the same guiding groove, the depths at different positions may also be different. For example, the guiding groove may be arranged in an inclined plane, and there may be an angle between the surface of the guiding groove and the xy plane shown in the figure. The one or more guiding grooves may form a sliding track, so that one end of the elastic arm 213 away from the first button 212 may slide along the sliding track formed by the guiding groove.

[0081] The one or more guiding grooves may form a first limiting portion A and a second limiting portion C. The first limiting portion A may be disposed at one end of the clutch mechanism 214 close to the first button 212, that is Figure 17 in (a), the position where one end of the elastic arm 213 away from the first button 212 is located. The depth of the guiding groove 2142A corresponding to the first limiting portion A may be greater than the depth of the guiding groove adjacent to 2142A in the AD section area, that is, greater than the depth of the guiding groove 2142I, and a stepped structure may be formed between the guiding groove 2142A and the guiding groove 2142I; and the depth of the guiding groove 2142A may be greater than, less than or equal to the depth of the guiding groove adjacent to 2142A in the AB section area, that is, greater than, less than or equal to the depth of the guiding groove 2142B, and the guiding groove 2142A and the guiding groove 2142B may share an adjacent side, so that the connection between the guiding groove 2142A and the guiding groove 2142B is smoother. Furthermore, when the first button 212 is pressed in the first state, one end of the elastic arm 213 away from the first button 212 can slide along the track formed by the guiding groove in the AB section area. And, when one end of the elastic arm 213 away from the first button 212 is located in the first limiting portion A, it can maintain the stability of the structure of the first button 212 in the first state. The first state may be the state when the outer end face of the first button 212 parallel to the yz plane is flush with the outer end face of the main shaft portion 210 parallel to the yz plane, or rather, the first state may be the state when one end of the latch 221 close to the main shaft portion 210 is located in the first sliding groove 211.

[0082] The second limiting portion C may be disposed at one end of the clutch mechanism 214 away from the first button 212, that is Figure 17In (b) thereof, the position where one end of the elastic arm 213 is located in the clutch mechanism 214. The depth of the guiding groove 2142F corresponding to the second limiting portion C can be greater than the depth of the guiding groove adjacent to the guiding groove 2142F in the BC section area, that is, it can be greater than the depth of the guiding groove 2142E, and a stepped structure can be formed between the guiding groove 2142E and the guiding groove 2142F; and the depth of the guiding groove 2142F can be greater than, less than or equal to the depth of the guiding groove adjacent to the guiding groove 2142F in the CD section area, that is, it can be greater than, less than or equal to the depth of the guiding groove 2142G, and the guiding groove 2142F and the guiding groove 2142E can share an adjacent side, so that the connection between the guiding groove 2142F and the guiding groove 2142E can be smoother. Furthermore, when the first button 212 is pressed in the second state, it can slide along the trajectory formed by the guiding groove in the CD section area. And, the end of the elastic arm 213 away from the first button 212 is located in the second limiting portion C, which can keep the structure of the first button 212 stable in the second state. The second state can be the state when the first button 212 is pressed and the plug 221 is pushed to be separated from the main shaft portion 210.

[0083] The following will be combined with Figure 17 to introduce the sliding process of the elastic arm 213 in the clutch mechanism 214 in detail. When the folding mechanism 123 is in the unfolded state, under the push of the elastic member 223, one end of the plug 221 close to the main shaft portion 210 can slide into the first sliding groove 211 along the first direction, so that the folding mechanism 123 is in the locked state. In this state, the end of the elastic arm 213 away from the first button 212 can be located in the first limiting portion A, as Figure 17As shown in (a) therein. When the user presses the first button 212, the first button 212 can move in the positive x-axis direction shown in the figure. Since the depth of the guiding groove 2142A corresponding to the first limiting portion A is greater than the depth of the guiding groove 2142I, and there is a stepped structure between the two, the sliding of the elastic arm 213 from the first limiting portion A to the position shown by point D is easily blocked by the guiding groove 2142I, while the connection between the guiding groove 2142A and the guiding groove 2142B is smoother. Furthermore, the elastic arm 213 can rotate clockwise around the mounting hole 2124, and the end of the elastic arm 213 far from the first button 212 can slide from the first limiting portion A to the position shown by point B. To enable the end of the elastic arm 213 far from the first button 212 to slide within the AB portion, in one or more guiding grooves in the AB portion, adjacent two guiding grooves can also share adjacent sides for smooth connection. Exemplarily, the depth of one or more guiding grooves in the AB portion can gradually increase from the position close to point A to the position close to point B. For example, the depth of the guiding groove 2142B shown in the figure can be greater than the depth of the guiding groove 2142A, the depth of the guiding groove 2142C can be greater than the depth of 2142B, or the depths of the guiding grooves 2142A, 2142B, and 2142C in the AB portion can also be the same, or decrease in sequence. The present application does not limit this. When the end of the elastic arm 213 far from the first button 212 moves to the position of point B, the moving distance of the first button 212 in the positive x-axis direction reaches the maximum. The first button 212 can push the bolt 221 to separate the bolt 221 from the main shaft portion, and the pressure applied to the first button 212 can be removed. The depth of the guiding groove 2142D corresponding to the position of point B can be greater than the depth of 2142C, and there can be a stepped structure between the two. The guiding groove 2142D and the guiding groove 2142E can share adjacent sides for smooth connection, so that when the pressure applied to the first button 212 is removed, the end of the elastic arm 213 far from the first button 212 can move from point B to the second limiting portion C to maintain the stability of the structure of the first button 212 in the second state.

[0084] Furthermore, since the depth of the guiding groove 2142F corresponding to the second limiting portion C is greater than that of the adjacent guiding groove 2142E, and there is a step between them, and the guiding groove 2142F and the guiding groove 2142E share an adjacent side, when the user presses the first button again, the end of the elastic arm 213 away from the first button 212 can move from C towards point D. Similarly, when the end of the elastic arm 213 away from the first button 212 reaches point D, that is, when it is located in the guiding groove 2142H, the pressure on the first button 212 can be removed. To enable the elastic arm 213 to slide towards the first limiting portion A, the depth of the guiding groove 2142H can be greater than that of the guiding groove 2142G, and there can be a step between them, and the guiding groove 2142H and the guiding groove 2142I in the DA section area can be smoothly connected.

[0085] From the first time the first button 212 is pressed, causing the elastic arm 213 to move from the position where the first limiting portion A is located through point B to the position where the second limiting portion C is located, to the first button 212 being pressed again, causing the elastic arm 213 to return from the position where the second limiting portion C is located through point D to the position where the first limiting portion A is located, the end of the elastic arm 213 away from the first button 212 completes a cyclic sliding in the clutch mechanism 214, and the first button 212 can also return to the position where it was not pressed, so that when the folding mechanism 123 is unfolded again, the end of the latch 221 close to the main shaft portion 210 can slide into the main shaft portion 210, and the first button 212 can push the latch 221 to separate from the main shaft portion 210.

[0086] It should be noted that the embodiments of the present application only exemplarily show the sliding principle of the elastic arm 213 in the clutch mechanism 214 under the pushing action of the first button 212, and should not limit the specific shape and structure of the clutch mechanism 214, nor should it limit the number, shape, and structure of the guiding grooves in the clutch mechanism 214.

[0087] Continue to refer to Figures 6 to 12For the structure shown, the folding mechanism 123 may further include a fifth chute 225 and a cover plate 226. The fifth chute 225 may extend in a first direction and may be located on a side of the second chute 222 away from the third chute 224. For example, the third chute 224 may be disposed below the second chute 222 along the z-axis direction shown in the figure, and the fifth chute 225 may be disposed above the second chute 222 along the z-axis direction shown in the figure. Moreover, the projection of the second chute 222 in a direction perpendicular to the main plane of the mounting plate 220 may be within the region where the projection of the fifth chute 225 in a direction perpendicular to the main plane of the mounting plate 220 is located. That is to say, the size of the fifth chute 225 may be larger than the size of the second chute 222. The fact that the size of the fifth chute 225 is larger than the size of the second chute 222 may mean that the dimension of the fifth chute 225 along the x-axis direction may be larger than the dimension of the second chute 222 along the x-axis direction, and the dimension of the fifth chute 225 along the y-axis direction may be larger than the dimension of the second chute 222 along the y-axis direction.

[0088] The size of the fifth chute 225 may be the same as the size of the cover plate 226, so that the cover plate 226 can be received in the fifth chute 225. When the cover plate 226 is received in the fifth chute 225, the surface of the cover plate 226 away from the bolt 221 may be flush with the outer surface of the mounting plate 220, so that the connection line between the cover plate 226 and the mounting plate 220 is smoother. When the cover plate 226 is received in the fifth chute 225, the surface of the cover plate 226 close to the bolt 221 may be in contact with the bolt 221, so that the bolt 221 is not likely to shake along the z-axis direction shown in the figure, and thus the sliding of the bolt 221 is more stable and reliable. The folding mechanism including the cover plate 226 and the fifth chute 225 can also make it easier to install components such as the bolt 221 and the spring.

[0089] The folding mechanism 123 may further include a rotating member 230. The rotating member 230 may be disposed on both sides of the main shaft portion 210. The rotating member 230 may be fixedly connected to the mounting plate 220 and may rotate around the main shaft portion 210 to achieve the folding and unfolding of the folding mechanism 123. The structure of the rotating member 230 is not limited in this application.

[0090] It should be noted that in the embodiments of the present application, taking one end of the main shaft portion as an example, the structures of the main shaft portion and the mounting plates located on both sides of the main shaft portion are introduced. The above-mentioned pins and chutes can be provided on the mounting plates on both sides of the main shaft portion, or only on the mounting plates on one side. In addition, the above-mentioned pins and chutes can also be provided at both ends of the main shaft portion to further improve the flattening angle of the folding mechanism and the electronic device. The folding mechanism introduced in the embodiments of the present application can be applied to electronic devices with "one-fold", that is, electronic devices that can be folded once, or to electronic devices with "two-folds" or more, that is, electronic devices that can be folded twice or more times. Moreover, the folding mechanism introduced in the embodiments of the present application can be applied to outward-folding electronic devices or inward-folding electronic devices, and the present application does not make any limitations in this regard.

[0091] In the embodiments of the present application, "the same" does not mean absolutely the same. Those skilled in the art can understand that since those skilled in the art can appropriately adjust the dimensions of structural members according to design requirements, the dimensions of two structural members being "the same" allows for a certain range of deviation, such as a difference of 0.1 mm to 0.5 mm, etc. Similarly, a value such as an included angle of 180° between two structural members can mean that the included angle is approximately 180°, etc., and does not represent an absolute value.

[0092] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A folding mechanism, characterized in that, it includes a main shaft part and a mounting plate, and the mounting plate is connected to the main shaft part; the main shaft part includes a first chute, the first chute extends along a first direction, when the folding mechanism is in the unfolded state, the first direction is parallel to the main plane of the mounting plate and perpendicular to the axial direction of the main shaft part; one side of the mounting plate close to the main shaft part includes a latch and a second chute, the second chute extends along the first direction, and the position of the second chute corresponds to the position of the first chute, at least part of the latch is arranged in the second chute, and the latch is slidably connected to the second chute; when the folding mechanism is in the folded state, the latch is located outside the first chute, when the folding mechanism is in the unfolded state, at least part of the end of the latch close to the main shaft part is located in the first chute; the main shaft part further includes a first button, at least part of the first button is located inside the main shaft part, when at least part of the end of the latch close to the main shaft part is located in the first chute, at least part of the first button is in contact with the end of the latch located in the first chute, and the first button is used to push the latch so that the latch is separated from the main shaft part.

2. The folding mechanism according to claim 1, characterized in that, the folding mechanism further includes: an elastic member, the elastic member is arranged in the second chute, and the elastic member is connected to the latch; when the folding mechanism is in the folded state, the length of the elastic member is a first length, when the folding mechanism is in the unfolded state, the length of the elastic member is a second length, and the second length is greater than the first length.

3. The folding mechanism according to claim 2, characterized in that, one end of the latch away from the main shaft part includes a first mounting hole, and the elastic member is connected to the latch through the first mounting hole.

4. The folding mechanism according to any one of claims 1 to 3, characterized in that, the mounting plate further includes a third chute, the third chute extends along the first direction, and the projection of the third chute along the direction perpendicular to the mounting plate is located in the area where the projection of the second chute along the direction perpendicular to the mounting plate is located, the latch includes a stop portion, at least part of the stop portion is received in the third chute, and the stop portion is slidably connected to the third chute; when at least part of the end of the latch close to the main shaft part is received in the first chute, the stop portion is in contact with the end of the third chute close to the main shaft part.

5. The folding mechanism according to any one of claims 1 to 4, characterized in that, the main shaft part further includes a fourth chute, the fourth chute extends along the axial direction of the main shaft part and is communicated with the first chute; at least part of the first button is received in the fourth chute, and when the first button is pressed, the first button can slide in the fourth chute along the axial direction of the main shaft part and push the latch to move away from the main shaft part along the first direction.

6. The folding mechanism according to claim 5, wherein, the first button includes a first inclined surface, and the first inclined surface is disposed at one end of the first button close to the bolt; the bolt includes a second inclined surface, and the second inclined surface is disposed at one end of the bolt close to the main shaft portion, and the second inclined surface is in contact with the first inclined surface; when the first button is pressed, the first button can push the bolt along the first direction away from the main shaft portion through the first inclined surface and the second inclined surface.

7. The folding mechanism according to claim 5 or 6, wherein, the folding mechanism further includes a spring arm, and the spring arm is connected to one end of the first button close to the bolt; the main shaft portion further includes a clutch mechanism, and the clutch mechanism includes one or more guiding grooves with different dimensions in a second direction perpendicular to the first direction and perpendicular to the axial direction of the main shaft portion. The one or more guiding grooves form a first limiting portion and a second limiting portion. The first limiting portion is located at one end of the clutch mechanism close to the first button, and the second limiting portion is located at one end of the clutch mechanism away from the first button; when the first button is pressed, the end of the spring arm away from the first button can slide along the trajectory formed by the one or more guiding grooves. When the first button is in the first state, the end of the spring arm away from the first button is received in the first limiting portion. When the first button is in the second state, the end of the spring arm away from the first button is received in the second limiting portion.

8. The folding mechanism according to any one of claims 1 to 7, wherein, the mounting plate further includes a cover plate and a fifth sliding groove. The fifth sliding groove extends along the first direction. The fifth sliding groove is located on the side of the second sliding groove away from the third sliding groove. The projection of the second sliding groove in the direction perpendicular to the mounting plate is located within the region of the projection of the fifth sliding groove in the direction perpendicular to the mounting plate. The cover plate is disposed in the fifth sliding groove.

9. A foldable electronic device, wherein, it includes the folding mechanism according to any one of claims 1 to 8.

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