Support plate, hinge mechanism and electronic equipment

Abstract

The invention provides a supporting plate, a hinge mechanism and electronic equipment. The supporting plate comprises a first supporting part and a second supporting part. The material rigidity of the second supporting part is larger than that of the first supporting part, the second supporting part is arranged at the end, in the first direction, of the first supporting part side by side, and the orthographic projection of the second supporting part and the orthographic projection of the first supporting part in the second direction are partially overlapped. On one hand, the overlapping part can achieve the overlapping relation between the second supporting part and the first supporting part, and on the other hand, the overlapping part can be used for arranging a connecting structure with other parts of the hinge mechanism, so that the second supporting part cannot collapse or deform relative to the first supporting part due to stress in the assembling or using process; and the first supporting part and the second supporting part which are made of materials with different rigidities are matched, so that the overall weight of the supporting plate is reduced, and the structural reliability, lightness and thinness of the supporting plate are improved.

Description

Technical Field

[0001] The present disclosure relates to the field of electronic technology, and in particular to a support plate, a hinge mechanism and an electronic device. Background Art

[0002] In related technologies, the support plate in the hinge mechanism of a foldable electronic device can cooperate with the screen of the electronic device to enable the screen to obtain a movement trajectory similar to that of the device body, thereby avoiding gaps between the screen and the device body during the bending process, causing damage.

[0003] The support plate is often made of plastic materials. However, due to the large length and width of the support plate, it is difficult for the overall flatness to meet the expected requirements. In particular, when there is no support or connection at the end of the support plate, it is easy to sink or deform due to force during use and assembly. Summary of the invention

[0004] The present disclosure provides a support plate, a hinge mechanism and an electronic device to solve related technical problems.

[0005] A first aspect of the present disclosure provides a support plate, which is applied to a hinge mechanism; the support plate comprises:

[0006] a first support portion;

[0007] The second supporting part has a material stiffness greater than that of the first supporting part, the second supporting part is arranged side by side at at least one end of the first supporting part along the first direction, and the orthographic projections of the second supporting part and the first supporting part along the second direction partially overlap.

[0008] Optionally, the second supporting portion at least includes:

[0009] a first portion, the first portion and the first supporting portion being arranged side by side along a first direction;

[0010] The second part is connected to the first part and the first supporting portion respectively, and the orthographic projection of the second part along the second direction overlaps with the first part and the first supporting portion respectively.

[0011] Optionally, the first supporting portion includes:

[0012] a third portion, the third portion and the second supporting portion being arranged side by side along a first direction;

[0013] The fourth part is connected to the third part and the second supporting part respectively, and the orthographic projection of the fourth part along the second direction overlaps with the third part and the second supporting part respectively.

[0014] Optionally, the first supporting portion and the second supporting portion are connected by at least one of the following methods: injection molding, bolting, clamping and riveting.

[0015] Optionally, the support plate further comprises:

[0016] The first connecting portion is located on the second supporting portion, and the orthographic projection of the first connecting portion along the second direction overlaps with the first supporting portion and the second supporting portion respectively.

[0017] Optionally, the first connecting portion is arranged on the second part.

[0018] Optionally, the first connection portion includes: a sliding connection structure and / or a rotating connection structure.

[0019] Optionally, a rubber gripping structure is provided at one end of the second supporting portion, and the first supporting portion covers the rubber gripping structure.

[0020] Optionally, the first supporting portion includes: a plate body and a second connecting portion, the plate body and the second connecting portion are made of different materials, and the plate body and the second connecting portion are injection-moldedly connected.

[0021] Optionally, the plate body and the second connecting portion are both made of plastic;

[0022] Alternatively, the second connecting portion is made of carbon fiber and the plate body is made of plastic.

[0023] Optionally, the second supporting portion is made of metal or carbon fiber.

[0024] According to a second aspect of the present disclosure, a hinge mechanism is provided, comprising: any support plate described in the first aspect.

[0025] Optionally, the hinge mechanism further comprises:

[0026] A fixing component, wherein the support plate is covered on the fixing component along a third direction and is movably connected to the fixing component; at least a portion of the second supporting portion extends in the first direction outside the positive projection of the fixing component in the third direction.

[0027] Optionally, the hinge mechanism further comprises:

[0028] A first connecting member, one end of which is hinged to the first connecting portion of the support plate along a first direction, and the other end of which is hinged to the fixing assembly; the orthographic projection of the first connecting member along the third direction overlaps with the fixing assembly and the support plate respectively.

[0029] Optionally, the hinge mechanism further comprises:

[0030] Base frame assembly;

[0031] A connecting component, one end of which is movably connected to the base frame component, and the other end of which is movably connected to the fixing component.

[0032] Optionally, the connection component includes:

[0033] a second connecting member, the second connecting member being movably connected to the base frame assembly;

[0034] A connecting rod assembly, one end of which is movably connected to the base frame assembly, and the other end of which is hinged to the fixed assembly.

[0035] Optionally, the connecting rod assembly comprises:

[0036] a first connecting rod, one end of which is rotatably connected to the base frame assembly;

[0037] A second connecting rod, one end of which is transmission-connected to the first connecting rod, and the other end of which is hinged to the fixing assembly.

[0038] Optionally, the connecting rod assembly comprises:

[0039] a first connecting rod, one end of which is rotatably connected to the base frame assembly;

[0040] a second connecting rod, one end of which is hinged to the fixing assembly;

[0041] The third connecting rod has two ends which are rotatably connected to the other end of the first connecting rod and the other end of the second connecting rod respectively.

[0042] Optionally, the hinge mechanism comprises: a plurality of groups of the connecting components arranged side by side along a first direction.

[0043] Optionally, at least one of the following components is made of steel with a tensile strength in the range of 1400MPa-1900MPa:

[0044] the base frame assembly;

[0045] the connection component;

[0046] The support plate;

[0047] The fixing component.

[0048] Optionally, the hinge mechanism can achieve hovering at any angle within the range of 45°-135°.

[0049] Optionally, the hinge mechanism further includes: a damping component, wherein material parameters of at least some parts of the damping component satisfy at least one of the following: 550HV≥ surface hardness≥450HV, yield strength≥1600MPa, and tensile strength≥1700MPa.

[0050] Optionally, the damping component includes: a cam, and material parameters of the cam satisfy at least one of the following: 550HV≥ surface hardness≥450HV, yield strength≥1600MPa, and tensile strength≥1700MPa.

[0051] A third aspect of the present disclosure provides an electronic device, comprising: any support plate described in the first aspect; or any hinge mechanism described in the second aspect.

[0052] The technical solution provided by the present disclosure can at least achieve the following beneficial effects:

[0053] The material stiffness of the second supporting part of the support plate disclosed in the present invention is greater than that of the first supporting part. The orthographic projections of the second supporting part and the first supporting part along the second direction partially overlap. On the one hand, the overlapping part itself can realize the overlapping relationship between the second supporting part and the first supporting part. On the other hand, the overlapping part can be used to set a connection structure with other parts of the hinge mechanism, so that the second supporting part will not collapse relative to the first supporting part or undergo other deformations when subjected to force during assembly or use. In addition, the use of a first supporting part and a second supporting part made of materials with different stiffness can also help reduce the overall weight of the support plate, thereby improving the structural reliability and lightness of the support plate, the hinge mechanism and the electronic device using the above-mentioned support plate.

[0054] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the specification and, together with the description, serve to explain the principles of the specification.

[0056] Figure 1 is a schematic diagram of an assembly structure of one side of a support plate in an exemplary embodiment of the present disclosure;

[0057] Figure 2 is a schematic diagram of an assembly structure of the other side of a support plate in an exemplary embodiment of the present disclosure;

[0058] Figure 3 is a schematic diagram of a partial exploded structure of a support plate in an exemplary embodiment of the present disclosure;

[0059] Figure 4is a partial structural schematic diagram of a hinge mechanism in an exemplary embodiment of the present disclosure;

[0060] Figure 5 It is a partial structural schematic diagram of a hinge mechanism in another exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0061] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this specification. Instead, they are merely examples of devices and methods consistent with some aspects of this specification as detailed in the appended claims.

[0062] The terms used in this disclosure are only for the purpose of describing specific embodiments and are not intended to limit the disclosure. Unless otherwise defined, the technical terms or scientific terms used in this specification should be understood by people with ordinary skills in the field to which the disclosure belongs. The words "first", "second" and similar words used in this specification and claims do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate a quantitative limit, but indicate the existence of one. "Multiple" or "several" means two and more than two. Unless otherwise specified, words such as "front", "rear", "lower" and / or "upper" are only for the convenience of explanation and are not limited to one position or one spatial orientation. Words such as "include" or "comprise" mean that the elements or objects appearing in front of "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, and can include electrical connections, whether direct or indirect.

[0063] The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit the present disclosure. The singular forms of "a", "the" and "the" used in this specification and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0064] In the related art, the support plate in the hinge mechanism of the foldable electronic device can cooperate with the screen of the electronic device to make the screen obtain a motion trajectory similar to that of the device body, so as to avoid a gap between the screen and the device body during the bending process, thereby preventing damage. The support plate is often made of plastic materials, and due to the large length and width of the support plate, it is difficult to meet the expected requirements for overall flatness, especially when there is no support or connection at the end of the support plate, it is easy to sink and other deformation problems due to force during use and assembly.

[0065] The present disclosure provides a support plate applied to a hinge mechanism. Figure 1 is a schematic diagram of an assembly structure of one side of a support plate in an exemplary embodiment of the present disclosure, Figure 2 is a schematic diagram of an assembly structure of the other side of a support plate in an exemplary embodiment of the present disclosure, Figure 3 is a schematic diagram of a partial exploded structure of a support plate in an exemplary embodiment of the present disclosure, such as Figure 1-Figure 3 As shown, the support plate 1 includes a first support portion 11 and a second support portion 12. The material stiffness of the second support portion 12 is greater than the material stiffness of the first support portion 11, and the second support portion 12 is arranged side by side at at least one end of the first support portion 11 along the first direction, and the orthographic projections of the second support portion 12 and the first support portion 11 along the second direction partially overlap.

[0066] Since the material stiffness of the second support portion 12 of the above-mentioned support plate 1 is greater than the material stiffness of the first support portion 11, the orthographic projections of the second support portion 12 and the first support portion 11 along the second direction overlap. On the one hand, the overlapping portion itself can realize the overlapping relationship between the second support portion 12 and the first support portion 11, and on the other hand, the overlapping portion can be used to set a connection structure with other parts of the hinge mechanism 2, so that the second support portion 12 will not collapse or other deformations relative to the first support portion 11 when subjected to force during assembly or use. In addition, the combination of the first support portion 11 and the second support portion 12 made of materials with different stiffnesses also helps to reduce the overall weight of the support plate 1 and improve the structural reliability and lightness of the support plate 1.

[0067] The first direction can be as follows Figure 1 , Figure 3 The length direction is shown by the dashed arrow, and the second direction may be the width direction shown by the dashed arrow. In other embodiments, the first direction and the second direction may also refer to other directions, which is not limited by the present disclosure.

[0068] In the above embodiment, the second support portion 12 may include at least a first portion 122 and a second portion 123. The first portion 122 and the first support portion 11 are arranged side by side along the first direction, and the second portion 123 is connected to the first portion 122 and the first support portion 11 respectively, and the orthographic projection of the second portion 123 along the second direction overlaps with the first portion 122 and the first support portion 11 respectively. The second portion 123 is connected to the first portion 122 and the first support portion 11 through the overlapping portion of the second portion 123 with the first portion 122 and the first support portion 11 in the second direction, thereby improving the connection strength of the first portion 122 and the second portion 123 themselves and the second support portion 12 and the first support portion 11, thereby avoiding deformation problems such as collapse of the second support portion 12 when subjected to force.

[0069] Similarly, the first support portion 11 may include a third portion 113 and a fourth portion 114, wherein the third portion 113 and the second support portion 12 are arranged side by side along the first direction, and the fourth portion 114 is connected to the third portion 113 and the second support portion 12 respectively, and the orthographic projection of the fourth portion 114 along the second direction overlaps with the third portion 113 and the second support portion 12 respectively. The fourth portion 114 is connected to the third portion 113 and the second support portion 12 by the overlapping portion of the fourth portion 114 with the third portion 113 and the second support portion 12 in the second direction, thereby improving the connection strength of the third portion 113 and the fourth portion 114 themselves as well as the first support portion 11 and the second support portion 12, thereby avoiding deformation problems such as collapse of the second support portion 12 when subjected to force.

[0070] In the above embodiment, the first support portion 11 and the second support portion 12 are connected by at least one of the following methods: injection molding connection, bolt connection, clamping and riveting. Taking the first support portion 11 and the second support portion 12 being connected by injection molding as an example:

[0071] In some embodiments, the second support portion 12 includes a first end, and the first support portion 11 is injection molded at the first end. The first support portion 11 is injection molded at the first end of the second support portion 12 to improve the connection reliability between the first support portion 11 and the second support portion 12 and improve the overall structural rigidity of the support plate 1.

[0072] The first support portion 11 injection molded at the first end can be made of various types of plastic materials, which is not limited in the present disclosure. The first support portion 11 made of plastic material is combined with the second support portion 12 with a stiffness greater than that of plastic material, so that the overall weight of the support plate 1 is composed of the plastic first support portion 11 and the second support portion 12 with a greater stiffness located at the end of the first support portion 11. The plastic material is lighter, which helps to improve the overall lightness and thinness of the support plate 1.

[0073] Furthermore, the first end may be provided with a gripping structure, and the first support portion 11 covers the gripping structure, which can improve the connection reliability between the first support portion 11 and the second support portion 12. The gripping structure may be a groove-shaped or hook-shaped structure, and the present disclosure does not limit the specific structure of the gripping structure.

[0074] In some embodiments, the support plate 1 may include second support portions 12 symmetrically arranged at both ends of the first support portion 11, so that the corresponding functions are achieved through the second support portions 12 located at both ends of the first support portion 11, and the structural stability of the first support portion 11 located between the two second support portions 12 is also improved.

[0075] In some embodiments, the support plate 1 may further include a first connection portion 121, the first connection portion 121 is located on the second support portion 12, and the orthographic projection of the first connection portion 121 along the second direction overlaps with the first support portion 11 and the second support portion 12. The first connection portion 121 overlaps with the orthographic projections of the first support portion 11 and the second support portion 12 in the second direction, so that the first connection portion 121 can serve as a structure for further connecting the first support portion 11 and the second support portion 12 or other components of the hinge mechanism 2, which helps to strengthen the structural strength and rigidity of the second support portion 12.

[0076] The above-mentioned first connecting portion 121 can be arranged on the second part 123. Arranging the first connecting portion 121 on the second part 123 adjacent to the first supporting portion 11 not only facilitates the connection between the first supporting portion 11 and the second supporting portion 12 or other components of the hinge mechanism 2, but also can enhance the structural strength of the first supporting portion 11 and the second supporting portion 12 at the joint position.

[0077] The first connection portion 121 may include a sliding connection structure and / or a rotating connection structure. For example, the first connection portion 121 may be a hinge connection hole, and the rotating shaft fixed to the first support portion 11 is inserted into the hinge connection hole.

[0078] In some embodiments, the first support portion 11 includes: a plate body 111 and a second connection portion 112. The plate body 111 and the second connection portion 112 are made of different materials, and the plate body 111 and the second connection portion 112 are connected by injection molding. The plate body 111 serves as a supporting body, and the second connection portion 112 can be used to achieve connection with the second support portion 12 and other components of the hinge mechanism 2. The connection between the plate body 111 and the second connection portion 112 through the injection molding process can improve the connection strength and overall rigidity of the second connection portion 112.

[0079] In the above embodiment, the material of the plate body 111 and the second connection part 112 can both be plastic. Setting the plate body 111 and the second connection part 112 to be plastic can reduce the weight of the first support part 11 and reduce the difficulty of the molding process. Alternatively, the second connection part 112 is carbon fiber and the plate body 111 is plastic. Setting the plate body 111 to be plastic can reduce the weight of the first support part 11, and the material of the second connection part 112 is carbon fiber, which can improve the structural strength of the second connection part 112 in the transmission connection.

[0080] The material of the second support portion 12 is metal or carbon fiber. The material of the second support portion 12 can improve the overall structural strength and rigidity of the second support portion 12 itself and the support plate 1. For example, when the material of the plate body 111 and the second connecting portion 112 is plastic, the plastic can be PA or PEEK, or a composite material formed by adding glass fiber to PA. When the material of the second support portion 12 is metal, the metal can be aluminum, steel, titanium alloy, etc., and the present disclosure is not limited to this.

[0081] During the molding process of the support plate 1, when the material of the plate body 111 and the second connecting portion 112 can both be plastic, the molded second supporting portion 12 can be placed in the mold, and the first supporting portion 11 can be injection molded in the mold, and the length accuracy of the support plate 1 can be controlled by adjusting the position of the second supporting portion 12 in the mold. When the material of the plate body 111 is plastic and the material of the second connecting portion 112 is carbon fiber, the second supporting portion 12 and the second connecting portion 112 can be placed in the mold, and the support plate 1 can be obtained by injection molding the first supporting portion 11 in the mold.

[0082] The first support portion 11 and the second support portion 12 of the support plate 1 can form a matching structure to support the flexible screen module of the electronic device, so as to provide support for the flexible screen module during the folding process, thereby preventing the screen module from having a gap with the device body during the bending process, thereby preventing damage.

[0083] The present disclosure further provides a hinge mechanism 2 , which includes the above-mentioned support plate 1 .

[0084] Since the material stiffness of the second support portion 12 of the above-mentioned support plate 1 is greater than the material stiffness of the first support portion 11, the orthographic projections of the second support portion 12 and the first support portion 11 along the second direction partially overlap. On the one hand, the overlapping portion itself can realize the overlapping relationship between the second support portion 12 and the first support portion 11, and on the other hand, the overlapping portion can be used to set a connection structure with other parts of the hinge mechanism 2, so that the second support portion 12 will not collapse or other deformations relative to the first support portion 11 due to force during assembly or use. In addition, the combination of the first support portion 11 and the second support portion 12 made of materials with different stiffness also helps to reduce the overall weight of the support plate 1, thereby improving the structural reliability and lightness of the support plate 1 and the hinge mechanism 2 using the above-mentioned support plate 1.

[0085] In the above embodiment, if Figure 4 As shown, the hinge mechanism 2 may also include a fixing component 22, the support plate 1 is covered on the fixing component 22 along the third direction and is movably connected to the fixing component 22, and at least a portion of the second support portion 12 extends in the first direction beyond the projection of the fixing component 22 in the third direction. The second support portion 12 extends in the first direction beyond the projection of the fixing component 22 in the third direction to form a cantilever structure. The cantilever structure obtains the expected rigidity through the material rigidity of the second support portion 12 and the connection relationship with the first support portion 11, thereby avoiding the cantilever structure from being deformed such as collapse due to stress during use or assembly. The third direction may refer to Figure 4 The thickness direction of the support plate 1 is perpendicular to the support plate 1.

[0086] The hinge mechanism 2 may further include a first connecting member 13, one end of the first connecting member 13 is hinged to the first connecting portion 121 of the support plate 1 along the first direction, the other end of the first connecting member 13 is hinged to the fixing assembly 22, and the orthographic projection of the first connecting member 13 along the third direction overlaps with the fixing assembly 22 and the supporting plate 1. The hinged connection of one end of the first connecting member 13 to the first connecting portion 121 of the supporting plate 1 can realize the transmission between the fixing assembly 22 and the supporting plate 1, and can also improve the structural strength and rigidity of the second supporting portion 12 through the hinged structure formed between the first connecting member 13 and the first connecting portion 121.

[0087] The support plate 1 can be used as a floating plate in the hinge mechanism 2, the first connecting member 13 can be used as a floating plate connecting rod, and the fixing assembly 22 can be used as a middle frame fixing block. The floating plate can cooperate with the screen of the electronic device to make the screen obtain a motion trajectory similar to that of the device body, so as to avoid a gap between the screen and the device body during the bending process and cause damage, and the middle frame fixing block is used to fix the floating plate connecting rod with the middle frame to connect the floating plate and the middle frame fixing block.

[0088] In some embodiments, the hinge mechanism 2 may further include a base assembly 21 and a connecting assembly 23, one end of the connecting assembly 23 being movably connected to the base assembly 21, and the other end of the connecting assembly 23 being movably connected to the fixing assembly 22, so that transmission from the base assembly 21 to the fixing assembly 22 is realized through the connecting assembly 23.

[0089] The connecting assembly 23 may include a second connecting member 232 and a connecting rod assembly 231, wherein the second connecting member 232 is movably connected to the base assembly 21, one end of the connecting rod assembly 231 is movably connected to the base assembly 21, and the other end of the connecting rod assembly 231 is hinged to the fixing assembly 22. The second connecting member 232 may be used as a synchronization rod in the hinge mechanism 2 to realize power transmission from the active member to the floating plate, and the connecting rod assembly 231 may be a track rod of the hinge mechanism 2 to drive the floating plate to obtain a desired track.

[0090] It should be noted that the connection relationship between the second connecting member 232 and the connecting rod assembly 231 and the first support portion 11 of the support plate 1 can drive the floating plate to move along the expected trajectory and can also tighten the first support portion 11, thereby ensuring the overall structural strength and rigidity of the first support portion 11.

[0091] In some embodiments, the above-mentioned connecting rod assembly 231 can be a two-stage connecting rod, that is, the connecting rod assembly 231 includes a first connecting rod 2311 and a second connecting rod 2312, one end of the first connecting rod 2311 is rotatably connected to the base assembly 21, one end of the second connecting rod 2312 is transmission-connected to the first connecting rod 2311, and the other end of the second connecting rod 2312 is hinged to the fixed assembly 22.

[0092] In other embodiments, Figure 5 As shown, the above-mentioned connecting rod assembly 231 can be a three-stage connecting rod, that is, the connecting rod assembly 231 includes a first connecting rod 2311, a second connecting rod 2312 and a third connecting rod, one end of the first connecting rod 2311 is rotatably connected to the base assembly 21, one end of the second connecting rod 2312 is hinged to the fixing assembly 22, and both ends of the third connecting rod are rotatably connected to the other end of the first connecting rod 2311 and the other end of the second connecting rod 2312 respectively.

[0093] The support plate 1 can be applied to the transmission schemes of the secondary connecting rod and the tertiary connecting rod, which can not only realize the corresponding transmission and support requirements, but also ensure its own rigidity to avoid deformation problems such as collapse after being subjected to force.

[0094] In some embodiments, the hinge mechanism 2 may include a plurality of connection components 23 arranged side by side along the first direction, so as to obtain a stable transmission effect through the plurality of connection components 23 .

[0095] In the above embodiment, at least one of the base assembly 21 , the connecting assembly 23 , the support plate 1 , and the fixing assembly 22 is made of steel with a tensile strength in the range of 1400 MPa-1900 MPa to ensure the structural strength and rigidity of the hinge mechanism 2 .

[0096] In addition, the hinge mechanism 2 can achieve hovering at any angle within the range of 45°-135°.

[0097] In some embodiments, Figure 2 As shown, the hinge mechanism 2 may further include: a damping component 24, wherein material parameters of at least some parts of the damping component 24 satisfy at least one of the following: 550HV≥ surface hardness≥450HV, yield strength≥1600MPa, and tensile strength≥1700MPa.

[0098] The damping assembly 24 includes a cam 241 , and the material parameters of the cam 241 satisfy at least one of the following: 550 HV ≥ surface hardness ≥ 450 HV, yield strength ≥ 1600 MPa, and tensile strength ≥ 1700 MPa. The damping assembly 24 may further include a spring 242 .

[0099] By defining the above material parameters of the damping component 24 , the structural reliability and service life of the hinge mechanism 2 during use can be ensured.

[0100] The present disclosure further provides an electronic device, including the above-mentioned support plate 1 or the above-mentioned hinge mechanism 2. The electronic device may include a flexible screen module, a device body and a hinge mechanism 2. The hinge mechanism 2 may include a transmission assembly, and the first support portion 11 of the support plate 1 supporting the floating plate may be connected to one or more transmission components in the transmission assembly to obtain tension, and the second support portion 12 may be connected to the floating plate connecting rod in the transmission assembly through a pin. The hinge mechanism 2 drives the device body and the flexible screen module to fold or unfold, and the first support portion 11 and the second support portion 12 of the support plate 1 may form a mating surface for supporting the flexible screen module to provide support for the flexible screen module during the folding process, thereby avoiding gaps between the screen module and the device body during the bending process, thereby preventing damage.

[0101] The material stiffness of the second support portion 12 of the above-mentioned support plate 1 is greater than the material stiffness of the first support portion 11, and the second support portion 12 and the first support portion 11 are partially overlapped in their orthographic projection along the second direction. On the one hand, the overlapping portion itself can realize the overlapping relationship between the second support portion 12 and the first support portion 11, and on the other hand, the overlapping portion can be used to set a connection structure with other parts of the hinge mechanism 2, so that the second support portion 12 will not collapse or undergo other deformations relative to the first support portion 11 due to force during assembly or use. In addition, the combination of the first support portion 11 and the second support portion 12 made of materials with different stiffness also helps to reduce the overall weight of the support plate 1, thereby improving the structural reliability and lightness of the support plate 1 and the electronic equipment using the above-mentioned support plate 1.

[0102] It should be noted that the above-mentioned electronic devices may be mobile phones, tablet computers, laptop computers, medical terminals, vehicle-mounted terminals, wearable devices, etc.

[0103] The above is only a preferred embodiment of the present disclosure and does not limit the present disclosure in any form. Although the present disclosure has been disclosed as a preferred embodiment as above, it is not used to limit the present disclosure. Any technician familiar with this profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present disclosure. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present disclosure without departing from the content of the technical solution of the present disclosure are still within the scope of the technical solution of the present disclosure.

Claims

1. A support plate, characterized in that: Applied to a hinge mechanism; the support plate comprises: a first support portion; The second supporting part has a material stiffness greater than that of the first supporting part, the second supporting part is arranged side by side at at least one end of the first supporting part along the first direction, and the orthographic projections of the second supporting part and the first supporting part along the second direction partially overlap.

2. The support plate according to claim 1, characterized in that: The second supporting portion at least comprises: a first portion, the first portion and the first supporting portion being arranged side by side along a first direction; The second part is connected to the first part and the first supporting portion respectively, and the orthographic projection of the second part along the second direction overlaps with the first part and the first supporting portion respectively.

3. The support plate according to claim 1, characterized in that: The first supporting portion comprises: a third portion, the third portion and the second supporting portion being arranged side by side along a first direction; The fourth part is connected to the third part and the second supporting part respectively, and the orthographic projection of the fourth part along the second direction overlaps with the third part and the second supporting part respectively.

4. The support plate according to claim 1, characterized in that: The first supporting portion and the second supporting portion are connected by at least one of the following methods: injection molding, bolting, clamping and riveting.

5. The support plate according to claim 2, characterized in that: Also includes: The first connecting portion is located on the second supporting portion, and the orthographic projection of the first connecting portion along the second direction overlaps with the first supporting portion and the second supporting portion respectively.

6. The support plate according to claim 5, characterized in that: The first connecting portion is disposed on the second portion.

7. The support plate according to claim 5, characterized in that: The first connection portion includes: a sliding connection structure and / or a rotating connection structure.

8. The support plate according to claim 1, characterized in that: A gripping structure is disposed at one end of the second supporting portion, and the first supporting portion covers the gripping structure.

9. The support plate according to claim 1, characterized in that: The first supporting portion includes: a plate body and a second connecting portion, the plate body and the second connecting portion are made of different materials, and the plate body and the second connecting portion are injection-molded connected.

10. The support plate according to claim 9, characterized in that: The second connecting portion is made of carbon fiber and the plate body is made of plastic.

11. The support plate according to claim 1, characterized in that: The second supporting part is made of metal or carbon fiber.

12. A hinge mechanism, characterized in that: include: A support plate as claimed in any one of claims 1 to 11.

13. The hinge mechanism according to claim 12, characterized in that: Also includes: A fixing assembly, wherein the support plate is covered on the fixing assembly along a third direction and is movably connected to the fixing assembly; At least a portion of the second supporting portion extends in the first direction outside the orthographic projection of the fixing assembly in the third direction.

14. The hinge mechanism according to claim 13, characterized in that: Also includes: A first connecting member, one end of which is hinged to the first connecting portion of the support plate along a first direction, and the other end of which is hinged to the fixing assembly; the orthographic projection of the first connecting member along the third direction overlaps with the fixing assembly and the support plate respectively.

15. The hinge mechanism according to claim 13, characterized in that: Also includes: Base frame assembly; A connecting component, one end of which is movably connected to the base frame component, and the other end of which is movably connected to the fixing component.

16. The hinge mechanism according to claim 15, characterized in that: The connection component comprises: a second connecting member, the second connecting member being movably connected to the base frame assembly; A connecting rod assembly, one end of which is movably connected to the base frame assembly, and the other end of which is hinged to the fixed assembly.

17. The hinge mechanism according to claim 16, characterized in that: The connecting rod assembly comprises: a first connecting rod, one end of which is rotatably connected to the base frame assembly; A second connecting rod, one end of which is transmission-connected to the first connecting rod, and the other end of which is hinged to the fixing assembly.

18. The hinge mechanism according to claim 16, characterized in that: The connecting rod assembly comprises: a first connecting rod, one end of which is rotatably connected to the base frame assembly; a second connecting rod, one end of which is hinged to the fixing assembly; The third connecting rod has two ends which are rotatably connected to the other end of the first connecting rod and the other end of the second connecting rod respectively.

19. The hinge mechanism according to claim 15, characterized in that: The hinge mechanism comprises: a plurality of groups of connecting components arranged side by side along a first direction.

20. The hinge mechanism according to claim 16, characterized in that: At least one of the following components is made of steel with a tensile strength in the range of 1400MPa-1900MPa: the base frame assembly; the connection component; The support plate; The fixing component.

21. The hinge mechanism according to claim 12, characterized in that: The hinge mechanism can achieve hovering at any angle within the range of 45°-135°.

22. The hinge mechanism according to claim 12, characterized in that: Also includes: A damping component, wherein material parameters of at least some parts of the damping component satisfy at least one of the following: 550HV≥ surface hardness≥450HV, yield strength≥1600MPa, and tensile strength≥1700MPa.

23. The hinge mechanism according to claim 22, characterized in that: The damping component includes: a cam, and the material parameters of the cam meet at least one of the following: 550HV≥ surface hardness≥450HV, yield strength≥1600MPa, and tensile strength≥1700MPa.

24. An electronic device, characterized in that: include: A support plate as claimed in any one of claims 1 to 11; or a hinge mechanism as claimed in any one of claims 12 to 23.

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