Electronic equipment and folding mechanism thereof

Abstract

The embodiment of the invention provides electronic equipment and a folding mechanism of the electronic equipment, the electronic equipment can be terminal equipment with a folding function such as a notebook computer and a folding mobile phone, the folding mechanism comprises a middle beam, a door plate and a sliding block connected between the middle beam and the door plate, and the middle beam is provided with an arc-shaped sliding way and an extending protrusion. The surface of the extending protrusion can form an extending face of the bottom wall of the circular-arc-shaped sliding way, the outer edge vertex Q passing through the extending face serves as a tangent line of the top wall of the circular-arc-shaped sliding way, and a tangent point P is formed, the rotating part of the sliding block can slide along the circular-arc-shaped sliding way, and in the folded state, the end of the rotating part is located on the side, away from the extending face, of the tangent point P; according to the folding mechanism, the lap joint length of the rotating part and the arc-shaped sliding way in the folding state can be increased, so that the stability and smoothness of the folding mechanism in the folding and unfolding process are guaranteed in a limited space, and the situations of clamping stagnation and even breakage are avoided.

Description

[0001] This application is a divisional application based on the original invention patent application number 202311164883.5, with the application date of September 7, 2023, and the application name is "An electronic device and a folding mechanism for an electronic device". Technical Field

[0002] The present application relates to the technical field of electronic equipment, and in particular to an electronic equipment and a folding mechanism of the electronic equipment. Background Art

[0003] With the design trend of electronic devices becoming thinner and lighter, the internal space of electronic devices is getting smaller and smaller, and the installation space of the folding mechanism is limited.

[0004] Foldable electronic devices such as laptop computers and foldable mobile phones include a folding mechanism, which includes a center beam and door panels on both sides of the center beam, a slider is connected between the door panel and the center beam, the center beam is provided with an arc-shaped slide, and the slider is provided with a rotating part that can slide along the arc-shaped slide. However, due to limited space, the matching length between the arc-shaped slide and the rotating part is limited. In the folded state, if the overlap length of the rotating part and the arc-shaped slide is too small, the folding mechanism may be unfolded and the rotating part may get stuck when sliding into the arc-shaped slide. It may even cause the rotating part to break due to the large resistance during the sliding process due to the jam.

[0005] Therefore, how to increase the overlap length between the rotating part of the slider and the arc-shaped slideway of the center beam within a limited space to ensure the stability and smoothness of the folding mechanism during folding and unfolding and avoid jamming or even breakage is a technical problem that technical personnel in this field need to solve. Summary of the invention

[0006] The embodiments of the present application provide an electronic device and a folding mechanism of the electronic device, which can increase the overlap length between the rotating part of the slider and the arc-shaped slideway of the center beam within a limited space, thereby ensuring the stability and smoothness of the folding mechanism during the folding and unfolding process and avoiding jamming or even breakage.

[0007] A first aspect of an embodiment of the present application provides a folding mechanism of an electronic device, comprising a center beam and two door panels respectively arranged on both sides of the center beam, the two door panels can be rotated relative to the center beam to a folded state or an unfolded state; a slider is connected between the door panel and the center beam, the center beam is provided with an arc-shaped slide, the slider is provided with a rotating part that can slide along the arc-shaped slide, and the slider is slidably connected to the door panel; the center beam is also provided with an extension protrusion, the surface of the extension protrusion forms an extension surface of the bottom wall of the arc-shaped slide, and a tangent to the top wall of the arc-shaped slide is made through the outer edge vertex Q of the extension surface to form a tangent point P, and in the folded state, the end of the rotating part is located on the side of the tangent point P away from the extension surface.

[0008] The surface of the extended protrusion forms an extended surface of the bottom wall of the arc-shaped slideway. When the rotating part slides along the arc-shaped slideway to a folded state, the end of the rotating part is located in the arc-shaped slideway. At this time, the extended protrusion can extend the overlap length between the arc-shaped slideway and the slider.

[0009] A tangent is drawn to the top wall of the arc-shaped slide through the outer edge vertex Q of the extension surface, and a tangent point P is formed. In the folded state, the end of the rotating part is located in the arc-shaped slide and exceeds the position of the tangent point P. In other words, the end of the rotating part is located on the side of the tangent point P away from the extension surface. In this way, it can be ensured that the rotating part and the arc-shaped slide have sufficient overlap in the folded state, thereby ensuring that the rotating part can slide smoothly along the arc-shaped slide during the later folding.

[0010] In a possible implementation, a limiting protrusion is further provided at the end of the rotating part, and a limiting groove is further provided on the inner wall of the arc-shaped slide. When the rotating part slides along the arc-shaped slide, the limiting protrusion can be driven to slide along the limiting groove. In the folded state, the limiting protrusion abuts against the groove wall of the limiting groove. By providing the limiting protrusion and the limiting groove, the sliding part can be limited from continuing to slide outward along the arc-shaped slide in the folded state, so as to prevent the sliding part from being separated from the arc-shaped slide, and ensure the overlapping stability between the two.

[0011] In a possible implementation, the limiting protrusion is provided on the lower surface of the rotating part, and the limiting groove is provided on the bottom wall of the arc-shaped slideway. This can simplify the structure and processing technology of the middle beam and simplify the installation operation.

[0012] In a possible implementation, the center beam is further provided with a stop groove, and the slider is further provided with a stop block. In the unfolded state, the stop block can abut against the bottom of the stop groove to limit the sliding part from sliding inward along the arc-shaped slideway. The provision of the stop groove and the stop block can limit the unfolding angle of the door panel and ensure the stable position of the two door panels in the unfolded state.

[0013] In a possible implementation, in the unfolded state, the end of the extension protrusion extends out of the upper end surface of the slider, so that the length of the extension surface can be further increased, thereby increasing the overlap length of the extension protrusion and the arc-shaped slideway.

[0014] In a possible implementation, the end of the arc-shaped slideway away from the door panel passes through the upper surface of the middle beam. This arrangement can further increase the length of the rotating part within a limited space, thereby increasing the overlapping length of the rotating part and the arc-shaped slideway in the folded state, ensuring overlapping stability and sliding smoothness.

[0015] In a possible implementation, the slider is further provided with a yielding structure corresponding to the extension protrusion, and the yielding structure is used to provide space in the height direction for the extension protrusion, so as to ensure that there is no interference with the extension protrusion during expansion.

[0016] In a possible implementation, the clearance structure is a clearance notch, a clearance hole or a clearance groove. The setting of the clearance structure is relatively flexible.

[0017] In a possible implementation, there are two extending protrusions, and the two extending protrusions are arranged at intervals. When there are two extending protrusions, it is possible to simplify the overall structure while ensuring that there is a sufficient overlap length between the rotating portion and the arc-shaped slideway in the folded state, and to ensure the structural strength of the slider, thereby avoiding the situation where the slider structure is weak due to too many giving way structures.

[0018] In a possible implementation, the two extension protrusions are respectively located at two side ends of the arc-shaped slideway in the width direction, so as to ensure the stability of the sliding fit between the rotating part and the extension surface.

[0019] In a possible implementation, the middle beam includes a base and a bracket, the upper surface of the base is provided with a first arc-shaped surface, the lower surface of the bracket is provided with a second arc-shaped surface, the bracket is fixed above the base, and the first arc-shaped surface and the second arc-shaped surface are enclosed to form an arc-shaped slideway. Such an arrangement can simplify the processing technology of the middle beam and reduce costs.

[0020] In a possible implementation, a first arc-shaped groove is provided on the upper surface of the base, and the bottom surface of the first arc-shaped groove forms a first arc-shaped surface. The groove wall of the first arc-shaped groove limits the rotating part from both sides to ensure the sliding stability of the rotating part in the arc-shaped slideway.

[0021] In a possible implementation, the door panel is provided with a slide groove, the slider can slide along the slide groove, and the axis of the slide groove is perpendicular to the axis of the center beam. In this way, the overall structure can be simplified while the slider can slide relative to the door panel, and the processing technology and installation operation can be simplified, while reducing the processing cost.

[0022] In a possible implementation, the cross section of the slide groove is a C-shaped structure. This arrangement can prevent the slider from being separated from the slide groove, thereby ensuring the sliding stability between the slider and the door panel.

[0023] In a second aspect, the present application further provides an electronic device, comprising two housing parts and a folding mechanism as in the first aspect, wherein the two housing parts are respectively fixed to two door panels of the folding mechanism.

[0024] The technical effect of the electronic device having the folding mechanism of the first aspect is similar to the technical effect of the folding mechanism described above, and will not be described in detail here to save space.

[0025] In a possible implementation, a flexible screen is further included, and the flexible screen is connected to the two housing parts respectively. The folding mechanism can be applied to a folding screen mobile phone, and the folding and unfolding of the flexible screen can be achieved by rotating the door panel relative to the middle beam.

[0026] In a possible implementation, one housing part is provided with a display screen, and the other housing part is provided with a keyboard. The folding mechanism can be applied to a notebook computer, and the notebook computer can be folded and unfolded by rotating the door panel relative to the middle beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of a folding mechanism of an electronic device provided in an embodiment of the present application in an unfolded state;

[0028] Figure 2 is a schematic structural diagram of a folding mechanism of an electronic device provided in an embodiment of the present application in a folded state;

[0029] Figure 3 yes Figure 2 AA section view in;

[0030] Figure 4 yes Figure 3 Enlarged view of middle B;

[0031] Figure 5 It is a partial structural diagram of the base of the middle beam;

[0032] Figure 6 It is a partial structural schematic diagram of the support of the middle beam;

[0033] Figure 7 and Figure 8 It is a structural diagram of the slider;

[0034] Fig. 9 It is a schematic diagram of the local structure of the folding mechanism in the unfolded state.

[0035] Figure 1-Figure 9 In the figure, the reference numerals are described as follows:

[0036] 1 middle beam, 11 arc-shaped slideway, 12 first arc-shaped surface, 13 second arc-shaped surface, 14 base, 141 first arc-shaped groove, 142 stop groove, 143 limit groove, 15 bracket, 151 through hole, 16 extension protrusion, 161 extension surface;

[0037] 2 door panels, 21 slide slots, 22 limiting structures;

[0038] 3 sliding block, 31 rotating portion, 32 sliding portion, 321 sliding member, 33 giving way structure, 331 giving way notch, 34 stop block, 35 limiting protrusion;

[0039] 4. Damping part;

[0040] Q vertex; P tangent point. DETAILED DESCRIPTION

[0041] The embodiments of the present application provide an electronic device, including but not limited to a mobile phone, a tablet computer, a laptop computer, an ultra-mobile personal computer (UMPC), a handheld computer, a walkie-talkie, a netbook, a POS machine, a personal digital assistant (PDA), a driving recorder, a wearable device, a virtual reality device or a vehicle-mounted front-mounted mobile or fixed terminal with a folding function.

[0042] The electronic device comprises a folding mechanism and two housing parts, wherein the folding mechanism is arranged between the two housing parts. Figure 1 and Figure 2 As shown, the folding mechanism includes a center beam 1 and a door panel 2, wherein door panels 2 are respectively arranged on both sides of the center beam 1, and the two door panels 2 are respectively fixed to the two shell parts, and the two door panels 2 can rotate relative to the center beam 1. Specifically, the rotation directions of the two door panels 2 are opposite, and the two door panels 2 can be rotated toward the side approaching each other to a folded state, and the two door panels 2 can also be rotated toward the direction away from each other to an unfolded state.

[0043] During use, the two housing parts can be manually operated to drive the two door panels 22 to rotate to achieve folding and unfolding.

[0044] When the electronic product is a mobile phone, the electronic product further includes a flexible screen, and the same side surface of the flexible screen is respectively connected to the two housing parts.

[0045] When the electronic product is a notebook computer, one housing portion is provided with a display screen, and the other housing portion is provided with a keyboard.

[0046] like Figure 1 and Figure 2 As shown, a damping part 4 is also connected between the door panel 2 and the center beam 1. When the door panel 2 rotates relative to the center beam 1, the damping part 4 can generate resistance and hinder the rotation of the door panel 2. Moreover, when the folding mechanism is in the folded and unfolded state, if there is no external force, the setting of the damping part 4 can ensure the state stability of the folding mechanism.

[0047] Specifically, there is no limitation on the specific structure, quantity and location of the damping part 4. Figure 1 and Figure 2As shown, two damping parts 4 are respectively arranged between each door panel 2 and the center beam 1, and the two damping parts 4 are arranged at intervals along the length direction of the center beam 1 to ensure structural stability, and the damping parts 4 arranged on both sides of the door panel 2 are arranged at intervals along the length direction of the center beam 1 to facilitate arrangement. Of course, the number of damping parts 4 between each door panel 2 and the center beam 1 can also be one, three or more, and the arrangement of two damping parts 4 can simplify the overall structure while ensuring the stability of the damping effect.

[0048] like Figure 1 and Figure 2 As shown, the folding mechanism further includes a slider 3, at least one slider 3 is connected between each door panel 2 and the center beam 1, one end of the slider 3 is rotatably connected to the center beam 1, and the other end of the slider 3 is slidably connected to the door panel 2. During the folding and unfolding process, the door panel 2 rotates relative to the center beam 1, and the slider 3 can rotate relative to the center beam 1 and slide relative to the door panel 2. The arrangement of the slider 3 can ensure the stability of the door panel 2 when it rotates relative to the center beam 1.

[0049] like Figure 3 and Figure 4 As shown, the center beam 1 is provided with an arc-shaped slideway 11, the axis of which is parallel or colinear with the length direction of the center beam 1, and the slider 3 includes a rotating portion 31, which is in an arc-shaped structure and is adapted to the arc-shaped slideway 11. The rotating portion 31 can slide along the arc-shaped slideway 11 to realize the rotational connection between the slider 3 and the center beam 1.

[0050] The axis of the arc-shaped slideway 11 in the longitudinal direction is an arc-shaped structure. The bottom wall of the arc-shaped slideway 11 is a first arc-shaped surface 12 , and the top wall of the arc-shaped slideway 11 is a second arc-shaped surface 13 .

[0051] The middle beam 1 includes a base 14 and a bracket 15. The bracket 15 can be fixed on the top of the base 14 by fasteners, welding, bonding, etc. Figure 4-Figure 6 As shown, the upper surface of the base 14 is provided with the above-mentioned first arc surface 12, and the lower surface of the bracket 15 is provided with the above-mentioned second arc surface 13. After the bracket 15 and the base 14 are fixed, the first arc surface 12 is located below the second arc surface 13, and the arc slide 11 is enclosed between the two.

[0052] To ensure installation accuracy, mutually compatible positioning structures are respectively provided on the upper surface of the base 14 and the lower surface of the bracket 15. For example, the base 14 is provided with a positioning hole and the bracket 15 is provided with a positioning column, or the base 14 is provided with a positioning column and the bracket 15 is provided with a positioning hole. After positioning and matching through the positioning structure, the bracket 15 is fixed to the base 14, which can ensure that the first arc surface 12 is just below the second arc surface 13, and encloses to form an arc-shaped slide 11.

[0053] Here, "upper" refers to the side of the door panel 2 facing the folding direction when the folding mechanism is in the unfolded state, that is, in the unfolded state, the two door panels 2 can be rotated upward relative to the middle beam 1 to achieve folding, and in the folded state, the two door panels 2 can be rotated downward relative to the middle beam 1 to achieve unfolding. Figure 3 As shown by the arrow in FIG. 1 , in the folded state, the door panel 2 is located above the center beam 1 .

[0054] It should be understood that the directional terms "upper" and "lower" in this article are relative concepts used for relative description and clarification, which can change accordingly according to the change of the orientation of the components in the drawings. For example, in the folded state, the upper surfaces of the two door panels 2 are opposite.

[0055] Furthermore, in this document, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features.

[0056] Specifically, Figure 5 and Figure 6 As shown, the upper surface of the base 14 is provided with a first arc-shaped groove 141, and the bottom wall of the first arc-shaped groove 141 forms a first arc-shaped surface 12. The lower surface of the bracket 15 is provided with a second arc-shaped surface 13. After the bracket 15 and the base 14 are fixed, the second arc-shaped surface 13 can fit with the surface of the opening side of the first arc-shaped groove 141, and enclose the first arc-shaped groove 141 to form an arc-shaped slide 11.

[0057] The rotating part 31 can slide between the first arc-shaped surface 12 and the second arc-shaped surface 13 , and the groove wall of the first arc-shaped groove 141 can limit the rotating part 31 from both sides to ensure stability.

[0058] Alternatively, the lower surface of the bracket 15 may be provided with a second arc-shaped groove, the top wall of the second arc-shaped groove forms a second arc-shaped surface 13, and the upper surface of the base 14 is provided with a first arc-shaped surface 12. After the bracket 15 and the base 14 are fixed, the first arc-shaped surface 12 can fit with the surface of the opening side of the second arc-shaped groove, and enclose the second arc-shaped groove to form an arc-shaped slide 11.

[0059] Alternatively, the upper surface of the base 14 may be provided with a first arc-shaped groove 141, and the lower surface of the bracket 15 may be provided with a second arc-shaped groove. After the bracket 15 is fixed to the base 14, the surface of the opening side of the first arc-shaped groove 141 fits with the surface of the opening side of the second arc-shaped groove, and they are enclosed to form an arc-shaped slide 11.

[0060] Of course, the arc-shaped slideway 11 may also be formed in the center beam 1 by machining. When the arc-shaped slideway 11 is formed by enclosing the bracket 15 and the base 14 , the machining process can be simplified and the cost can be reduced.

[0061] During the folding process, the rotating part 31 slides outward along the arc-shaped slide 11. In the folded state, in order to ensure a stable connection between the slider 3 and the center beam 1, at least part of the rotating part 31 needs to be located in the arc-shaped slide 11 to avoid the rotating part 31 from being separated from the arc-shaped slide 11. However, in the folded state, if the length of the rotating part 31 in the arc-shaped slide 11 is too short and the overlap between the rotating part 31 and the arc-shaped slide 11 is too small, the rotating part 31 may get stuck when sliding into the arc-shaped slide 11 when the folding mechanism is unfolded, and may even break due to greater resistance during the sliding process.

[0062] Due to the design trend of electronic devices being thinner and lighter, the internal installation space of the electronic devices is limited, and it is impossible to ensure the overlap between the rotating part 31 and the arc-shaped slide 11 in the folded state by increasing the length of the arc-shaped slide 11 and the length of the rotating part 31.

[0063] like Figure 3-Figure 5 As shown, in this embodiment, the base 14 is further provided with an extension protrusion 16, the upper surface of which is also an arc surface and is coaxial with the first arc surface 12, that is, the upper surface of the extension protrusion 16 forms an extension surface 161 of the first arc surface 12. When the rotating part 31 slides along the arc slide 11 to a folded state, the end of the rotating part 31 is located in the arc slide 11, and at this time, the extension protrusion 16 can extend the overlap length between the arc slide 11 and the slider 3.

[0064] like Figure 4 As shown, a tangent line is drawn through the outer edge vertex Q of the extension surface 161 to the second arc-shaped surface 13 to form a tangent point P. In the folded state, the end of the rotating portion 31 is located in the arc-shaped slide 11 and exceeds the tangent point P. In other words, the end of the rotating portion 31 is located on the side of the tangent point P away from the extension surface 161. In this way, it can be ensured that the rotating portion 31 and the arc-shaped slide 11 have sufficient overlap in the folded state, thereby ensuring that the rotating portion 31 can slide smoothly along the arc-shaped slide 11 during the later folding.

[0065] Among them, the outer edge of the extension surface 161 refers to the edge of one side of the extension surface 161 facing the outside of the arc-shaped slide 11. The outer edge of the extension surface 161 is a line. When the outer edge of the extension surface 161 is a straight line and parallel to the length direction of the middle beam 1, the vertex Q can be any point on the outer edge of the extension surface 161. When the outer edge of the extension surface 161 is a straight line and is not parallel to the length direction of the middle beam 1, or the outer edge of the extension surface 161 is curved, the vertex Q is the highest point of the outer edge of the extension surface 161.

[0066] In this embodiment, the slider 3 is further provided with a clearance structure 33, which is used to provide space in the height direction for the extension protrusion 16 to ensure that there is no interference with the extension protrusion 16 during deployment. Thereby, the overlap length between the rotating part 31 and the arc-shaped slideway 11 is further increased within a limited space.

[0067] like Figure 7 and Figure 8 As shown, the clearance structure 33 is a clearance notch 331 set throughout the slider 3, and the slider 3 is respectively provided with a clearance notch 331 on both side ends along the length direction of the middle beam 1, and the number of the extended protrusions 16 is correspondingly two, and the two extended protrusions 16 are respectively located on both side ends of the arc-shaped slide 11 in the length direction of the middle beam 1.

[0068] Of course, in this embodiment, the clearance structure 33 can also be set as a clearance hole or a clearance groove, which is more flexible. The clearance groove is opened on the side wall of the slider 3 facing the base 14. It is not difficult to understand that the clearance hole and the clearance gap 331 are both set through the slider 3. When the clearance structure 33 is set as the clearance hole and the clearance gap 331, a larger height space can be provided for the extended protrusion 16.

[0069] In the unfolded state, the end of the extension protrusion 16 may not exceed the upper surface of the slider 3, or the end of the extension protrusion 16 may pass through the yield structure 33 to the top of the slider 3 to further increase the length of the extension protrusion 16. The specific length of the extension protrusion 16 is not limited in the embodiment of the present application, and can be set according to actual conditions, so that in the installed state, the extension protrusion 16 does not interfere with other surrounding structures.

[0070] Furthermore, the setting position of the extension protrusion 16 is not limited. When the extension protrusion 16 is set at the end of the arc-shaped slideway 11 along the length direction of the middle beam 1, the clearance structure 33 can be a clearance notch 331 and a clearance groove, so as to ensure the stability of the sliding fit between the rotating part 31 and the extension surface 161. When the extension protrusion 16 is set at the middle position of the arc-shaped slideway 11, the clearance structure 33 can be a clearance hole and a clearance groove. In other words, if the clearance structure 33 is set at the edge of the slider 3, the clearance structure 33 can be a clearance notch 331 or a clearance groove. If the clearance structure 33 is set at the middle position of the slider 3, the clearance structure 33 can be a clearance hole or a clearance groove.

[0071] In addition, in the present embodiment, there is no specific restriction on the number of the extended protrusions 16. For example, three extended protrusions 16 may be provided, and each extended protrusion 16 is arranged at intervals along the length direction of the center beam 1, wherein two extended protrusions 16 are at the end portions. In this case, the clearance space may include two clearance notches 331 and one clearance hole, and the extension lengths of each extended protrusion 16 may be the same or different, and no specific restriction is imposed herein.

[0072] When there are two extended protrusions 16, it is possible to simplify the overall structure while ensuring that there is a sufficient overlap length between the rotating portion 31 and the arc-shaped slide 11 in the folded state, and to ensure the structural strength of the slider 3, thereby avoiding the situation where the structure of the slider 3 is weak due to an excessive number of yield structures 33.

[0073] In this embodiment, the arc-shaped slideway 11 is arranged through the bracket 15. Figure 6 and Fig. 9 As shown, the bracket 15 is also provided with a through hole 151, which is connected to the arc-shaped slide 11. In the unfolded state, the end of the rotating part 31 can be located in the through hole 151. The setting of the through hole 151 can provide a clearance space for the end of the rotating part 31, so as to further increase the length of the rotating part 31 within a limited space, thereby increasing the overlapping length of the rotating part 31 and the arc-shaped slide 11 in the folded state, ensuring the overlapping stability and sliding smoothness.

[0074] To ensure that the slider 3 can slide along the arc-shaped slideway 11 to the unfolded state, the upper surface of the door panel 2 is roughly coplanar with the upper surface of the middle beam 1, and the flexible screen is roughly unfolded to a state of 180°, as shown in FIG. Figure 5 As shown, the base 14 is also provided with a stop groove 142, and the bottom of the stop groove 142 forms a stop surface. Figure 7 and Figure 8As shown, a stop block 34 is also provided on the lower surface of the slider 3. In the unfolded state, the stop block 34 can abut against the stop surface to limit the door panel 2 from continuing to rotate relative to the center beam 1. That is to say, when the stop block 34 abuts against the stop surface, it indicates that the folding mechanism is already in the unfolded state.

[0075] The stop block 34 and the stop groove 142 can limit the rotation angle of the door panel 2, and can also ensure the relative position stability between the two door panels 2 in the unfolded state. In other words, the stop block 34 and the stop groove 142 can limit the unfolding angle of the electronic device and ensure the stability of the electronic device in the unfolded state.

[0076] like Figure 7 and Figure 8 As shown, a limiting protrusion 35 is also provided at the end of the rotating part 31, and a limiting groove 143 is also provided on the inner wall of the arc-shaped slide 11. When the rotating part 31 slides along the arc-shaped slide 11, the limiting protrusion 35 can slide along the limiting groove 143. In the folded state, the limiting protrusion 35 can abut against the groove wall of the limiting groove 143 to limit the rotating part 31 from continuing to slide outward and disengage from the arc-shaped slide 11, thereby ensuring the overlapping stability between the rotating part 31 and the arc-shaped slide 11.

[0077] The arrangement of the limiting protrusion 35 and the limiting groove 143 can limit the position of the rotating part 31 in the arc-shaped slideway 11 to prevent the two from being separated. It is not difficult to understand that in the unfolded state, the upper end surface of the limiting protrusion 35 does not exceed the upper end surface of the rotating part 31 to avoid interference with other components.

[0078] Specifically, it can be Figure 5 As shown, the first arc-shaped surface 12 is provided with a limiting groove 143, and the limiting protrusion 35 is provided on the lower surface of the end of the rotating part 31, or the second arc-shaped surface 13 is provided with a limiting groove 143, and the limiting protrusion 35 is provided on the upper surface of the end of the rotating part 31. When the limiting groove 143 is provided on the first arc-shaped surface 12, the structure of the bracket 15 can be simplified, and the installation operation can be simplified.

[0079] When the door panel 2 rotates relative to the center beam 1, in the unfolded state, the door panel 2 is restricted from continuing to rotate in the unfolding direction by the abutment between the stop block 34 and the bottom wall of the stop groove 142. In the folded state, the door panel 2 is restricted from continuing to rotate in the folding direction by the abutment between the limit protrusion 35 and the wall of the limit groove 143, thereby limiting the rotation range of the two door panels 2.

[0080] When at least two sliders 3 are connected between each door panel 2 and the center beam 1, the sliders 3 are arranged at intervals along the length direction of the center beam 1, and the rotation axes of the sliders 3 are all collinear, that is, the axes of the arc-shaped slideways 11 arranged on the same side of the center beam 1 are all collinear. The sliders 3 on both sides of the center beam 1 are arranged at intervals and staggered, that is, the arc-shaped slideways 11 on both sides of the center beam 1 are arranged at intervals and staggered along the length direction of the center beam 1, so as to arrange the sliders 3 in a limited space, and the axes of the arc-shaped slideways 11 on both sides of the center beam 1 can be parallel or collinear.

[0081] like Fig. 9 As shown, the door panel 2 is provided with a slide groove 21, the axis of which is perpendicular to the length direction of the center beam 1, and the slider 3 also includes a sliding portion 32, which can slide along the slide groove 21 to achieve a sliding connection between the slider 3 and the door panel 2.

[0082] Alternatively, the door panel 2 may be provided with a sliding member 321, the slider 3 may be provided with a slide rail, and the sliding member 321 may slide along the slide rail to achieve a sliding connection between the slider 3 and the door panel 2. When the door panel 2 is provided with a slide groove 21 and the slider 3 can slide along the slide groove 21, the overall structure can be simplified, and the processing technology and installation operation can be simplified, while reducing the processing cost.

[0083] like Fig. 9 As shown, the cross-section of the slide groove 21 is a C-shaped structure, and limiting structures 22 are respectively arranged on one side of the groove on both sides of the width direction of the slide groove 21, and the two side edges of the slider 3 are respectively located between the limiting structure 22 and the bottom of the slide groove 21. In the process of the slider 3 sliding along the slide groove 21, due to the limitation of the limiting structure 22, the slider 3 is prevented from being separated from the slide groove 21, so as to ensure the sliding stability between the slider 3 and the door panel 2.

[0084] like Figure 7-Figure 9 As shown, the sliding portion 32 includes two sliding members 321 , and the height of each sliding member 321 is adapted to the height between the bottom of the slide groove 21 and the lower end surface of the limiting structure 22 , and the sliding member 321 can slide between the bottom of the slide groove 21 and the limiting structure 22 .

[0085] Of course, the sliding part 32 can also be set as a whole structure. When the sliding part 32 is set to include two sliding members 321, it can simplify the overall structure and reduce the overall weight while ensuring that there is a sufficient matching length between the sliding member 321 and the slide groove 21, thereby facilitating the realization of the goal of lightweight.

[0086] In this embodiment, there is no limitation on the specific structure of the limiting structure 22 , which can be formed by a protruding structure protruding inwardly from the groove wall of the sliding groove 21 . The overall structure is simple and the installation operation can be simplified.

[0087] Specific examples are used herein to illustrate the principles and implementation methods of the present application, and the description of the above embodiments is only used to help understand the method and core ideas of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A folding mechanism for an electronic device, characterized in that: include: A middle beam (1), wherein the middle beam (1) is provided with an arc-shaped slideway (11); Two door panels (2), the two door panels being respectively arranged on both sides of the center beam (1) and being capable of rotating relative to the center beam (1) to a folded state or an unfolded state; A slider (3), one end of the slider (3) being provided with a rotating portion (31), the rotating portion (31) being slidably connected to the arc-shaped slideway (11); the other end of the slider (3) being connected to the door panel (2); The middle beam (1) is further provided with an extension protrusion (16), and the extension protrusion (16) is used to form a part of the circular arc slideway (11); The slider (3) is also provided with a yielding structure (33) corresponding to the extending protrusion (16) to prevent the folding mechanism from interfering with the extending protrusion (16) when the folding mechanism is unfolded.

2. The folding mechanism of an electronic device according to claim 1, wherein when the folding mechanism is in a folded state, the extending protrusion (16) and the rotating portion (31) overlap.

3. The folding mechanism of an electronic device according to claim 1 or 2, characterized in that: The extending protrusions (16) are respectively provided at both side ends in the width direction of the arc-shaped slideway (11).

4. The folding mechanism of an electronic device according to any one of claims 1 to 3, characterized in that: The clearance structure (33) is a clearance notch (331), a clearance hole or a clearance groove.

5. The folding mechanism of an electronic device according to any one of claims 1 to 4, characterized in that: A limiting protrusion (35) is also provided at the end of the rotating part (31), and a limiting groove (143) is also provided on the inner wall of the arc-shaped slideway (11). When the rotating part (31) slides along the arc-shaped slideway (11), it can drive the limiting protrusion (35) to slide along the limiting groove (143). In the folded state, the limiting protrusion (35) abuts against the groove wall of the limiting groove (143).

6. The folding mechanism of an electronic device according to claim 5, characterized in that: The limiting groove (143) is arranged on the bottom wall of the arc-shaped slideway (11).

7. The folding mechanism of an electronic device according to claim 5, characterized in that: The limiting protrusion (35) is arranged on the lower surface of the rotating part (31).

8. The folding mechanism of an electronic device according to any one of claims 1 to 7, characterized in that: The center beam (1) is also provided with a stop groove (142); in the unfolded state, the sliding block (3) can abut against the bottom of the stop groove (142) to limit the sliding portion (31) from sliding inwards along the arc-shaped slideway (11).

9. The folding mechanism of an electronic device according to any one of claims 1 to 8, characterized in that: One end of the arc-shaped slideway (11) away from the door panel (2) passes through the upper surface of the center beam (1).

10. The folding mechanism of an electronic device according to any one of claims 1 to 9, characterized in that: The surface of the extended protrusion (16) forms an extended surface (161) of the bottom wall of the arc-shaped slide (11), and a tangent line of the top wall of the arc-shaped slide (11) is formed through the outer edge vertex (Q) of the extended surface (161), forming a tangent point (P). In the folded state, the end of the rotating part (31) is located on the side of the tangent point (P) away from the extended surface (161).

11. The folding mechanism of an electronic device according to any one of claims 1 to 10, characterized in that: The center beam (1) comprises a base (14) and a bracket (15); the upper surface of the base (14) is provided with a first arc-shaped surface (12); the lower surface of the bracket (15) is provided with a second arc-shaped surface (13); the bracket (15) is fixed above the base (14) and encloses the first arc-shaped surface (12) and the second arc-shaped surface (13) to form the arc-shaped slideway (11).

12. The folding mechanism of an electronic device according to claim 11, characterized in that: The upper surface of the base (14) is provided with a first arc-shaped groove (141), and the bottom surface of the first arc-shaped groove (141) forms the first arc-shaped surface (12).

13. The folding mechanism of an electronic device according to claim 1, characterized in that: The door panel (2) is provided with a slide groove (21), and the sliding block (3) can slide along the slide groove (21).

14. The folding mechanism of an electronic device according to claim 13, characterized in that: The cross section of the slide groove (21) is a C-shaped structure.

15. An electronic device, characterized in that: It comprises two shell parts and a folding mechanism as claimed in any one of claims 1 to 15, wherein the two shell parts are respectively fixed to two door panels (2) of the folding mechanism.

16. The electronic device according to claim 15, characterized in that: It also includes a flexible screen, which is connected to the two shell parts respectively.

17. The electronic device according to claim 15, characterized in that: One of the housing parts is provided with a display screen, and the other housing part is provided with a keyboard.

Images