Folding mechanisms and electronic devices
By employing a linkage design between the active connector of the base and folding components and the swing arm in foldable electronic devices, the problems of complex structure and high cost in existing technologies are solved, achieving effective protection and low-cost manufacturing of flexible screens.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUAWEI TECH CO LTD
- Filing Date
- 2021-10-29
- Publication Date
- 2026-07-17
AI Technical Summary
The existing folding mechanisms of foldable electronic devices are complex, resulting in high manufacturing difficulty and cost, and cannot effectively protect the flexible screen from damage during the folding process.
The folding mechanism, which includes a base and two folding components, moves the support plate and the housing connector through the linkage of the movable connector and the swing arm, creating a larger space to accommodate the bending part of the flexible screen, simplifying the structure and reducing costs.
It achieves protection of the flexible screen during folding, simplifies the manufacturing process and reduces costs, while ensuring the smooth movement and compact structure of the folding mechanism.
Smart Images
Figure CN116074416B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of mobile terminals, and in particular to a folding mechanism and an electronic device including the folding mechanism. Background Technology
[0002] With the development of technology, electronic devices have become increasingly widely used and have become important tools in people's daily lives and work. Foldable electronic devices are favored by people because they take up little space and are easy to carry.
[0003] Foldable electronic devices typically consist of two housings, a folding mechanism, and a flexible screen. The two housings are connected to opposite sides of the folding mechanism, and can open and close relative to each other under the action of the folding mechanism. The flexible screen is located on the same side of both housings and the folding mechanism, and is connected to the housings, thus folding or unfolding during the relative opening and closing of the two housings. When the folding mechanism is flattened, the flexible screen lies flat on the surface of the two housings and the folding mechanism.
[0004] To ensure sufficient space for the flexible screen's bending portion in the folded state and prevent damage, the two shells not only gradually close during rotation but also move away from the axis of rotation under the action of the folding mechanism. In related technologies, the folding mechanism's structural design is often quite complex to achieve this movement, resulting in significant manufacturing difficulties and high costs. Summary of the Invention
[0005] This application provides a folding mechanism and an electronic device that overcomes the problems in related technologies. The technical solution is as follows:
[0006] In a first aspect, embodiments of this application provide a folding mechanism, which includes a base and two folding assemblies. The two folding assemblies are located on both sides of the base and are connected to the base. The two folding assemblies are capable of opening and closing relative to each other. Each folding assembly includes a swing arm, a housing connector, a support plate, and a movable connector. The swing arm is pivotally connected to the base. The housing connector is slidably connected to the swing arm and is capable of sliding relative to the swing arm in a direction closer to or away from the base. The support plate is pivotally connected to the housing connector. The movable connector is located on the side of the support plate closer to the base. The movable connector is at least partially located in the base and is slidably connected to the base. The movable connector is pivotally connected to the support plate and is linked with the swing arm, used to drive the support plate in a direction closer to or away from the base under the action of the swing arm.
[0007] Based on the above characteristics, during the closing process of the two folding components, the movable connector moves the support plate away from the base, causing the support plate and the housing connector to move away from the base relative to the swing arm. Therefore, in the closed state, the space formed between the support plates and the base of the two folding components is larger, providing more room to accommodate the bending portion of the flexible screen and preventing damage to the flexible screen. The folding mechanism, through the linkage between the movable connector and the swing arm, moves the support plate and the housing connector, resulting in a simple structure, easy manufacturing, and low cost.
[0008] In some examples, the movable connector includes a sliding portion and a driving portion connected together. The sliding portion is located on the side of the swing arm, and the driving portion is located on the side of the sliding portion closer to the swing arm. The swing arm has a driving groove located on the sidewall of the swing arm opposite to the sliding portion, and the driving groove extends in a direction away from the pivot axis of the swing arm. The driving portion is partially located in the driving groove.
[0009] Based on the above features, the swing arm is engaged with the driving part of the movable connector through the driving groove. During the rotation of the swing arm, the side wall of the driving groove pushes the driving part. Since the movable connector is slidably connected to the base, the movable connector can slide relative to the base under the cooperation of the driving groove and the driving part during the rotation of the swing arm.
[0010] In some examples, the sliding part has a socket located on the side wall of the sliding part near the swing arm, and the driving part is inserted into the socket.
[0011] Based on the above features, by providing the socket, during assembly, a portion of the drive unit can be inserted into the socket, and the portion of the drive unit outside the socket is used to cooperate with the swing arm, so that the movable connector can be linked with the swing arm.
[0012] In some examples, the insertion hole is located at one end of the sliding part, and the other end of the sliding part has a first connecting hole, through which the sliding part is pivotally connected to the support plate.
[0013] Based on the above features, the insertion hole and the first connecting hole are arranged at both ends of the sliding part, making full use of the length of the sliding part. While satisfying the normal movement of the folding mechanism, the length of the sliding part can be set to be shorter, making the structure more compact.
[0014] In other examples, the driving part and the sliding part are integrally formed.
[0015] In some examples, the folding assembly includes two of the movable connectors, and the two movable connectors are arranged symmetrically about the swing arm.
[0016] Based on the above features, by symmetrically arranging two movable connectors, both of which are linked to the swing arm, and by forming a cooperation between the support plate and the swing arm through the two movable connectors, the movement of the support plate and the housing connector is more stable during the opening and closing of the folding assembly.
[0017] In some examples, the drive groove extends through the swing arm in a direction parallel to the pivot axis of the swing arm; the drive portions of the two movable connectors are coaxial and connected.
[0018] Based on the above characteristics, asynchronous movement of the two movable connectors will affect the smoothness of the folding mechanism's movement. By configuring the drive groove to pass through the swing arm, coaxially arranging the drive portions of the two movable connectors, and connecting the drive portions of the two movable connectors, the two movable connectors become a single unit. During the rotation of the swing arm, the swing arm can simultaneously drive the movement of the two movable connectors, keeping their movements synchronized, thereby making the folding mechanism's movement smoother.
[0019] In some examples, the top surface of the base has two mounting slots, which are located near opposite sides of the base, and each mounting slot corresponds to one of the two folding components; the end of the swing arm of the folding component is located in the corresponding mounting slot.
[0020] Based on the above features, by providing the mounting groove on the top surface of the base and placing the end of the swing arm in the mounting groove, the swing arm can be pivotally connected to the side wall of the mounting groove using the side wall of the mounting groove, so that the swing arm can rotate relative to the base.
[0021] In some examples, the top surface of the base has a plurality of slots corresponding to the mounting slots, the slots being located to the side of the respective mounting slots; the movable connector is inserted into the slots, the movable connector being received in the slots when the folding assembly is in the unfolded state, and the movable connector extending at least partially relative to the slots when the folding assembly is in the closed state.
[0022] Based on the above features, the slots cooperate with the movable connector, allowing the movable connector to slide relative to the base, and the slots define the direction of movement of the movable connector when sliding relative to the base. For example, the top surface of the base has four slots, where two slots correspond to one of the two mounting slots, and the other two slots correspond to the other of the two mounting slots.
[0023] Optionally, the extension direction of the slot is perpendicular to the top surface of the base. When the two folding components are in a relatively closed state, the sliding portion of the movable connector extends perpendicularly relative to the top surface of the base.
[0024] In some examples, the swing arms of the two folding components are linked, and the swing arms of the two folding components can rotate synchronously in opposite directions. By linking the two folding components, when either folding component rotates relative to the base, the other folding component will also rotate relative to the base, ensuring that the two folding components are always in a symmetrical state.
[0025] As an example, the swing arm includes an incomplete gear portion and a main body portion. The incomplete gear portion is located at one end of the main body portion and is pivotally connected to the base; the incomplete gear portions of the swing arms of the two folding assemblies mesh.
[0026] Based on the above features, by directly meshing the incomplete gear portions of the two swing arms, the two swing arms can be linked together, resulting in a compact structure for the folding mechanism.
[0027] As another example, the swing arm includes an incomplete gear portion and a main body portion, the incomplete gear portion being located at one end of the main body portion and pivotally connected to the base; the folding mechanism further includes a synchronizing gear set located in the base and between the two folding components, wherein the incomplete gear portion of the swing arm of the two folding components meshes with the synchronizing gear set.
[0028] Based on the above features, since the incomplete gear portion of the swing arm meshes with the synchronous gear set, when the swing arm of either of the two folding components rotates relative to the base, it will drive the gear in the synchronous gear set to rotate. The gear in the synchronous gear set will then drive the swing arm of the other folding component to rotate, thereby making the two swing arms linked together.
[0029] Secondly, embodiments of this application also provide an electronic device, which includes a folding mechanism, a first housing, a second housing, and a flexible screen. The folding mechanism is the folding mechanism described in the first aspect. The first housing is connected to one of the housing connectors in the folding mechanism, and the second housing is connected to the other housing connector in the folding mechanism. The flexible screen is located on the same side of the folding mechanism, the first housing, and the second housing, and is connected to the first housing and the second housing.
[0030] Based on the above structure, the opening and closing of the first and second housings will cause the two folding components to open and close relative to each other. During the closing process of the two folding components, the movable connector moves the support plate away from the base, causing the support plate and the housing connector to move away from the base relative to the swing arm. Therefore, in the closed state, the space formed between the support plate and the base of the two folding components is larger, providing more room for the bending portion of the flexible screen and preventing damage to the flexible screen. The folding mechanism, through the linkage between the movable connector and the swing arm, moves the support plate and the housing connector, resulting in a simple structure, easy manufacturing, and low cost. Attached Figure Description
[0031] Figure 1 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application;
[0032] Figure 2 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application;
[0033] Figure 3 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application;
[0034] Figure 4 This is a schematic diagram of the structure of a folding mechanism provided in an embodiment of this application;
[0035] Figure 5 This is an exploded structural diagram of a folding mechanism provided in an embodiment of this application;
[0036] Figure 6 This is an assembly schematic diagram of a folding mechanism provided in an embodiment of this application;
[0037] Figure 7 This is a side view of a folding mechanism provided in an embodiment of this application;
[0038] Figure 8 This is a partial structural schematic diagram of a folding mechanism provided in an embodiment of this application;
[0039] Figure 9This is a schematic diagram of the structure of a support plate provided in an embodiment of this application;
[0040] Figure 10 This is a schematic diagram of the assembly of a sliding part and a support plate provided in an embodiment of this application;
[0041] Figure 11 This is a schematic diagram of the folding process of a folding mechanism provided in an embodiment of this application;
[0042] Figure 12 This is an assembly diagram of a swing arm and a movable connecting member provided in an embodiment of this application;
[0043] Figure 13 This is a schematic diagram of the structure of a base provided in an embodiment of this application;
[0044] Figure 14 This is a partial structural schematic diagram of a folding mechanism provided in an embodiment of this application;
[0045] Figure 15 This is a schematic diagram of the bottom structure of a base provided in an embodiment of this application;
[0046] Figure 16 This is a schematic diagram of the structure of a shell connector provided in an embodiment of this application;
[0047] Figure 17 This is an assembly schematic diagram of a swing arm and housing connection provided in an embodiment of this application;
[0048] Figure 18 This is a schematic diagram of the structure of a shell connector provided in an embodiment of this application;
[0049] Figure 19 This is a schematic diagram of the structure of a folding mechanism provided in an embodiment of this application;
[0050] Figure 20 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Detailed Implementation
[0051] The terminology used in the embodiments section of this application is for illustrative purposes only and is not intended to limit the application. Unless otherwise defined, the technical or scientific terms used in the embodiments of this application should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in the patent application specification and claims of this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "a" or "one," and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including," and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. The terms "connected," "linked," and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up," "down," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0052] Figure 1 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. The electronic device may be, but is not limited to, a mobile phone, a tablet computer, or a display. Figure 1 As shown, the electronic device includes a folding mechanism 100, a first housing 200, a second housing 300, and a flexible screen 400. The flexible screen 400 is located on the same side of the folding mechanism 100, the first housing 200, and the second housing 300, and is connected to the first housing 200 and the second housing 300.
[0053] The first housing 200 and the second housing 300 can open and close relative to each other. When the first housing 200 and the second housing 300 are unfolded, the flexible screen 400 is laid flat on the folding mechanism 100, the surface of the first housing 200 and the second housing 300. When the first housing 200 and the second housing 300 are closed relative to each other, the flexible screen 400 is folded between the first housing 200 and the second housing 300.
[0054] like Figure 1 As shown, the electronic device also includes a base plate 500. Figure 2 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Figure 2 The image shows the folded state of the electronic device, as shown below. Figure 2 As shown, the base plate 500 is located at the bottom of the folding mechanism 100. In the folded state, the base plate 500 is exposed between the first housing 200 and the second housing 300, forming part of the outer surface of the electronic device. Figure 3This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Figure 3 The electronic device is in a semi-folded state, that is, a form between a folded state and an unfolded state. For example... Figure 3 As shown, the base plate 500 retracts between the first housing 200 and the second housing 300 under the action of the folding mechanism 100. When the first housing 200 and the second housing 300 are in the unfolded state, see... Figure 1 As shown, the base plate 500 is concealed between the first housing 200 and the second housing 300.
[0055] Figure 4 This is a schematic diagram of a folding mechanism provided in an embodiment of this application. Figure 4 The image shows two folding mechanisms connected to each other. Taking one of the folding mechanisms as an example... Figure 4 As shown, the folding mechanism includes a base 110 and two folding components 120. The two folding components 120 are located on both sides of the base 110, and both folding components 120 are connected to the base 110 and can be opened and closed relative to each other. The folding components 120 can be in an unfolded state or a closed state. The folding components 120 are installed in the electronic device. When the folding components 120 are in the unfolded state, the electronic device is in the unfolded state, the first housing 200 and the second housing 300 are unfolded, and the flexible screen 400 is laid flat on the surfaces of the folding mechanism 100, the first housing 200, and the second housing 300. When the folding components 120 are in the closed state, the electronic device is in the folded state, the first housing 200 and the second housing 300 are closed relative to each other, and the flexible screen 400 is folded between the first housing 200 and the second housing 300.
[0056] One of the two folding components 120 is connected to the first housing 200, and the other of the two folding components 120 is connected to the second housing 300. During the folding process, the two folding components 120 move closer to each other, causing the first housing 200 and the second housing 300 to move closer to each other.
[0057] Figure 5 This is an exploded structural diagram of a folding mechanism provided in an embodiment of this application. For example... Figure 5 As shown, each folding assembly 120 includes a swing arm 121, a housing connector 122, a support plate 123, and a movable connector 124.
[0058] Figure 6 This is an assembly schematic diagram of a folding mechanism provided in an embodiment of this application. Figure 6 As shown, the swing arm 121 is pivotally connected to the base 110. Figure 6The pivot axis m1 of the swing arm 121 and the base 110 is shown, and the pivot axes m1 of the two swing arms 121 are spaced apart from each other. The two swing arms 121 are able to rotate relative to the base 110 about their respective pivot axes m1.
[0059] The housing connector 122 is slidably connected to the swing arm 121, and the housing connector 122 can slide relative to the swing arm 121 in a direction close to or away from the base 110. Figure 6 The sliding direction of the housing connector 122 relative to the swing arm 121 is schematically shown with a double-headed arrow.
[0060] The support plate 123 is pivotally connected to the housing connector 122. Figure 6 The pivot axis m2 of the support plate 123 and the housing connector 122 is schematically shown. The pivot axis m2 of the support plate 123 and the housing connector 122 is parallel to the pivot axis m1 of the swing arm 121.
[0061] The support plate 123 is used to provide support for the flexible screen 400. When the two folding components 120 are unfolded relative to each other, the support plates 123 of the two folding components 120 are coplanar to support the flexible screen 400 in the flattened state.
[0062] The movable connector 124 is at least partially located in the base 110 and is slidably connected to the base 110. The movable connector 124 is also pivotally connected to the support plate 123. Figure 6 The sliding direction of the movable connector 124 relative to the base 110 is schematically shown by a double-headed arrow. The pivot axis m3 of the movable connector 124 and the support plate 123 is also shown. The pivot axis m3 of the movable connector 124 and the support plate 123 is parallel to the pivot axis m1 of the swing arm 121.
[0063] Figure 7 This is a side view of a folding mechanism provided in an embodiment of this application. (Comparison) Figure 6 and Figure 7 The movable connector 124 is linked with the swing arm 121. The movable connector 124 is used to drive the support plate 123 in the direction of approaching or moving away from the base 110 under the action of the swing arm 121.
[0064] Since the housing connector 122 and the swing arm 121 are slidably connected, and the support plate 123 is connected to the housing connector 122, when the movable connector 124 moves the support plate 123 towards or away from the base 110, the support plate 123 and the housing connector 122 move together relative to the swing arm 121. During the closing process of the two folding components 120, the movable connector 124 moves the support plate 123 away from the base 110, causing the support plate 123 and the housing connector 122 to move away from the base 110 relative to the swing arm 121. Therefore, in the closed state, the space formed between the support plate 123 of the two folding components 120 and the base 110 is larger, providing more space to accommodate the bending portion of the flexible screen 400 and preventing damage to the flexible screen 400. This folding mechanism, through the linkage between the movable connector 124 and the swing arm 121, moves the support plate 123 and the housing connector 122, resulting in a simple structure, easy manufacturing, and low cost.
[0065] Figure 8 This is a partial structural schematic diagram of a folding mechanism provided in an embodiment of this application. For example... Figure 8 As shown, the movable connector 124 includes a sliding part 1241 and a driving part 1242, which are connected together. The sliding part 1241 is located on the side of the swing arm 121, and the driving part 1242 is located on the side of the sliding part 1241 closer to the swing arm 121.
[0066] In some examples, the sliding part 1241 and the driving part 1242 are integrally formed, that is, the sliding part 1241 and the driving part 1242 are a single unit. In other examples, the sliding part 1241 and the driving part 1242 are detachably connected, and the sliding part 1241 and the driving part 1242 are manufactured separately and then assembled together.
[0067] For example, in this embodiment, the sliding part 1241 has a socket 1241a. The socket 1241a is located on the side wall of the sliding part 1241 near the swing arm 121. The driving part 1242 is inserted into the socket 1241a. By providing the socket 1241a, during assembly, a portion of the driving part 1242 can be inserted into the socket 1241a, while the portion of the driving part 1242 outside the socket 1241a is used to cooperate with the swing arm 121, so that the movable connector 124 can be linked with the swing arm 121.
[0068] The drive unit 1242 and the sliding unit 1241 can be made of different materials. For example, the drive unit 1242 can be made of metal, and the sliding unit 1241 can be made of plastic. Using metal to make the drive unit 1242 increases its strength and prevents it from breaking during its engagement with the swing arm 121. Using plastic to make the sliding unit 1241 helps reduce the overall weight of the folding mechanism.
[0069] Optionally, the sliding part 1241 is elongated, the insertion hole 1241a is near one end of the sliding part 1241, and the connection part between the sliding part 1241 and the support plate 123 is near the other end of the sliding part 1241.
[0070] In this embodiment, the sliding portion 1241 further has a first connecting hole 1241b, which is located on the side wall of the sliding portion 1241 near the swing arm 121, and near the other end of the sliding portion 1241. The sliding portion 1241 is pivotally connected to the support plate 123 through the first connecting hole 1241b. For example, Figure 9 This is a schematic diagram of the structure of a support plate provided in an embodiment of this application. Figure 9 As shown, the sliding part 1241 and the support plate 123 are connected by a pin 1231. The pin 1231 is located in the first connecting hole 1241b, allowing relative rotation between the movable connector 124 and the support plate 123. The insertion hole 1241a and the first connecting hole 1241b are arranged at both ends of the sliding part 1241, making full use of the length of the sliding part 1241. While ensuring the normal operation of the folding mechanism, the length of the sliding part 1241 can be set relatively short, resulting in a more compact structure.
[0071] In other examples, for example, Figure 10 This is a schematic diagram illustrating the assembly of a sliding part and a support plate according to an embodiment of this application. Figure 10 As shown, the sidewall of the sliding part 1241 has a first protrusion 1243. The first protrusion 1243 is used for pivotal connection with the support plate 123. A second connecting hole 123a is provided on one side of the support plate 123, and the first protrusion 1243 is located in the second connecting hole 123a, so that relative rotation can occur between the movable connector 124 and the support plate 123.
[0072] Reference Figure 8 The swing arm 121 has a drive groove 121a. The drive groove 121a is located on the side wall of the swing arm 121 opposite to the sliding part 1241, and extends in a direction away from the pivot axis m1 of the swing arm 121. The drive part 1242 is partially located in the drive groove 121a.
[0073] The swing arm 121 is engaged with the drive part 1242 of the movable connector 124 through the drive groove 121a. During the rotation of the swing arm 121, the side wall of the drive groove 121a pushes the drive part 1242. Since the movable connector 124 is slidably connected to the base 110, the movable connector 124 can slide relative to the base 110 under the cooperation of the drive groove 121a and the drive part 1242 during the rotation of the swing arm 121.
[0074] During the rotation of the swing arm 121, the drive unit 1242 slides in the drive groove 121a. For example, Figure 11 This is a schematic diagram of the folding process of a folding mechanism provided in an embodiment of this application. Figure 11 This illustrates the application of this folding mechanism in an electronic device, showing the device in three states: flattened, semi-folded, and folded. Figure 11 As shown, when the two folding components 120 are in the unfolded state, the drive unit 1242 is located at the end of the drive groove 121a away from the pivot axis m1 of the swing arm 121. During the gradual closing of the two folding components 120, the drive unit 1242 moves along the drive groove 121a, first towards the end of the drive groove 121a closer to the pivot axis m1 of the swing arm 121, and then towards the end of the drive groove 121a away from the pivot axis m1 of the swing arm 121. When the two folding components 120 are in the closed state, the drive unit 1242 is located at the end of the drive groove 121a away from the pivot axis m1 of the swing arm 121.
[0075] Reference Figure 7 As shown, each folding assembly 120 includes two movable connectors 124. The two movable connectors 124 are arranged symmetrically about the swing arm 121.
[0076] By symmetrically arranging two movable connectors 124, the support plate 123 and the swing arm 121 are connected through the two movable connectors 124, so that the movement of the support plate 123 and the shell connector 122 is more stable during the opening and closing of the folding assembly 120.
[0077] When arranging two movable connectors 124, the surface of the swing arm 121 may have two drive grooves 121a. One of the two drive grooves 121a is located on the surface of the swing arm 121 opposite to one movable connector 124, and the other drive groove 121a is located on the surface of the swing arm 121 opposite to the other movable connector 124. In some examples, the bottoms of the two drive grooves 121a may be connected, that is, the drive groove 121a extends through the swing arm 121.
[0078] Figure 12 This is an assembly diagram of a swing arm and a movable connecting member provided in an embodiment of this application. Figure 12 As shown, the drive groove 121a passes through the swing arm 121 in a direction parallel to the pivot axis m1 of the swing arm 121. The drive portions 1242 of the two movable connectors 124 are coaxial and connected.
[0079] During the rotation of the swing arm 121, the swing arm 121 drives the movable connector 124 through the drive part 1242 of the movable connector 124, causing the movable connector 124 to move in tandem with the swing arm 121. Asynchronous movement of the two movable connectors 124 may affect the normal movement of the folding assembly 120. Since there is inevitably a certain assembly gap between the drive part 1242 and the drive groove 121a, it is difficult to make the assembly gap between the drive parts 1242 and the drive groove 121a match when arranging the two movable connectors 124 separately. Therefore, the movement of the two movable connectors 124 is difficult to be completely synchronized. However, in this embodiment, the drive groove 121a passes through the swing arm 121. By arranging and connecting the drive parts 1242 of the two movable connectors 124 coaxially, the two movable connectors 124 form a whole. Thus, during the rotation of the swing arm 121, the two movable connectors 124 can be driven to move simultaneously, keeping their movements synchronized, thereby making the movement of the folding mechanism smoother.
[0080] In this embodiment, the insertion holes 1241a of the sliding portions 1241 of the two movable connectors 124 are arranged coaxially, and the driving portions 1242 of the two movable connectors 124 are connected to form a shaft. During assembly, the two sliding portions 1241 can be placed on both sides of the swing arm 121, and the shaft can be passed through the insertion holes 1241a of the two sliding portions 1241 and the driving groove 121a of the swing arm 121, thereby arranging the two movable connectors 124 as a whole, so that the two movable connectors 124 are linked with the swing arm 121.
[0081] Figure 13 This is a schematic diagram of the structure of a base provided in an embodiment of this application. Figure 13 The image shows two bases 13 connected together. Figure 13 As shown, the top surface 111 of the base 110 has two mounting slots 110a. The two mounting slots 110a are located near opposite sides of the base 110, and each mounting slot 110a corresponds to one of the two folding assemblies 120. The ends of the swing arms 121 of the folding assemblies 120 are located in the corresponding mounting slots 110a.
[0082] The base 110 is the mounting base for the folding assembly 120. By setting the mounting groove 110a, the end of the swing arm 121 is placed in the mounting groove 110a, and the swing arm 121 can be pivotally connected to the side wall of the mounting groove 110a, so that the swing arm 121 can rotate relative to the base 110.
[0083] like Figure 13 As shown, the two mounting slots 110a are located on opposite sides of the base 110, so that the swing arm 121 can have a large rotation range when the two folding components 120 are unfolded relative to each other.
[0084] In this embodiment, the mounting groove 110a has third connecting holes 110c on its opposite side walls, and the third connecting holes 110c on the side walls are arranged coaxially. The third connecting holes 110c are used for pivotal connection with the swing arm 121. The side wall of the swing arm 121 has a corresponding protrusion, which is inserted into the third connecting hole 110c, so that the swing arm 121 can rotate relative to the base 110.
[0085] In other examples, the opposite side walls of the mounting groove 110a may also have protrusions, and the side wall of the swing arm 121 has a connecting hole into which the protrusions are inserted, so that the swing arm 121 can rotate relative to the base 110.
[0086] like Figure 13 As shown, the top surface 111 of the base 110 has a plurality of slots 110b, which correspond to the mounting slots 110a and are located to the side of the respective mounting slots 110a. A movable connector 124 is inserted into the slot 110b. When the folding assembly 120 is in the unfolded state, the movable connector 124 is received within the slot 110b; when the folding assembly 120 is in the closed state, the movable connector 124 extends at least partially relative to the slot 110b.
[0087] In this embodiment, the top surface 111 of the base 110 has four slots 110b, two of which correspond to one of the two mounting slots 110a, and the other two slots 110b correspond to the other of the two mounting slots 110a. The two slots 110b corresponding to the same mounting slot 110a are located on both sides of the mounting slot 110a to accommodate two movable connectors 124 located on both sides of the same swing arm 121. Through the cooperation between the slots 110b and the movable connectors 124, the movable connectors 124 can slide relative to the base 110, and the slots 110b define the direction of movement of the movable connectors 124 relative to the base 110 when they slide.
[0088] In this embodiment, the extension direction of the slot 110b is perpendicular to the top surface 111 of the base 110. When the two folding components 120 are in a relatively closed state, the sliding part 1241 of the movable connector 124 extends relative to the top surface 111 of the base 110 and is perpendicular to the top surface 111 of the base 110.
[0089] When the two folding components 120 are in a relatively unfolded state, the movable connector 124 is entirely located in the slot 110b, that is, the movable connector 124 does not protrude relative to the top surface 111 of the base 110, thereby avoiding the movable connector 124 from affecting the flattening of the flexible screen 400.
[0090] Optionally, the swing arms 121 of the two folding components 120 are linked, and the swing arms 121 of the two folding components 120 can rotate synchronously in opposite directions. When one folding component 120 rotates relative to the base 110, the other folding component 120 will also rotate relative to the base 110, so that the two folding components 120 are always in a symmetrical state.
[0091] Figure 14 This is a partial structural schematic diagram of a folding mechanism provided in an embodiment of this application. For example... Figure 14 As shown, the swing arm 121 includes an incomplete gear portion 1211 and a main body portion 1212. The incomplete gear portion 1211 is located at one end of the main body portion 1212 and is pivotally connected to the base 110.
[0092] The incomplete gear portion 1211 has teeth distributed on its arcuate surface for meshing. In some examples, the incomplete gear portion 1211 has second protrusions 12111 on both sides, and the two second protrusions 12111 are arranged coaxially. The second protrusions 12111 are used for clearance engagement with the third connecting hole 110c located on the side wall of the mounting groove 110a. When the rocker arm 121 is connected to the base 110, the second protrusions 12111 are inserted into the third connecting hole 110c, and when the rocker arm 121 is rotated, the second protrusions 12111 rotate in the third connecting hole 110c. In other examples, the incomplete gear portion 1211 has a through hole, and the through hole of the incomplete gear portion 1211 and the third connecting hole 110c on the side wall of the mounting groove 110a are connected by a pin.
[0093] like Figure 14 As shown, the folding mechanism also includes a synchronizing gear set 125. The synchronizing gear set 125 is located in the base 110 and is positioned between the two folding assemblies 120. The incomplete gear portions 1211 of the swing arms 121 of the two folding assemblies 120 mesh with the synchronizing gear set 125.
[0094] Since the incomplete gear portion 1211 of the swing arm 121 meshes with the synchronous gear set 125, when one of the two folding components 120 swing arms 121 rotates relative to the base 110, it will drive the gear in the synchronous gear set 125 to rotate. The gear in the synchronous gear set 125 will then drive the swing arm 121 in the other folding component 120 to rotate, thereby making the two swing arms 121 linked together.
[0095] In this embodiment of the application, the synchronous gear set 125 includes two synchronous gears 1250, which mesh with each other. One synchronous gear 1250 meshes with the incomplete gear portion 1211 of one swing arm 121 of the two folding assemblies 120, and the other synchronous gear 1250 meshes with the incomplete gear portion 1211 of the other swing arm 121 of the two folding assemblies 120.
[0096] Figure 15 This is a schematic diagram of the bottom structure of a base provided in an embodiment of this application. Figure 15 The image shows two bases 110 connected by a second plate 115. (See image for details.) Figure 15 As shown, the base 110 has a receiving groove 110d at its bottom, which is used to receive the synchronous gear set 125. During assembly, the synchronous gear set 125 can be inserted from the bottom of the base 110. The receiving groove 110d communicates with the mounting groove 110a, so that the synchronous gear set 125 and the incomplete gear portion 1211 of the rocker arm 121 can mesh.
[0097] The synchronizing gear set 125 includes an even number of synchronizing gears 1250, such that the two rocker arms 121 rotate in opposite directions relative to the base 110. In this embodiment of the application, as an example, the synchronizing gear set 125 includes two synchronizing gears 1250. In other examples, the synchronizing gear set 125 may also include other numbers of synchronizing gears 1250, for example, four.
[0098] In other examples, the incomplete gear portions 1211 of the swing arms 121 of the two folding components 120 mesh. By directly meshing the incomplete gear portions 1211 of the two swing arms 121, the two swing arms 121 can be linked without the need for a synchronization gear set 125. Direct meshing of the incomplete gear portions 1211 of the two swing arms 121 further reduces the number of parts in the folding mechanism, making the structure more compact.
[0099] Figure 16 This is a structural schematic diagram of a shell connector provided in an embodiment of this application. For example... Figure 16 As shown, the housing connector 122 includes a first plate 1221 and a connecting block 1222, with the connecting block 1222 located on one side of the first plate 1221. The surface of the connecting block 1222 has a groove 1222a, and the main body 1212 of the swing arm 121 is located in the groove 1222a. The main body 1212 engages with the groove 1222a, allowing the housing connector 122 to slide relative to the main body 1212 along the extending direction of the groove 1222a.
[0100] In this embodiment of the application, the two opposite side walls of the groove 1222a have guide ridges 12221. Figure 17 This is an assembly diagram of a swing arm and housing connector provided in an embodiment of this application. Figure 17 As shown, the two side walls of the main body 1212 of the swing arm 121 have guide grooves 1212a, and guide protrusions 12221 are located in the guide grooves 1212a. The guide protrusions 12221 cooperate with the guide grooves 1212a to restrict the relative movement direction of the swing arm 121 and the housing connector 122.
[0101] In other examples, the guide ridge 12221 may also be provided in the main body 1212 of the swing arm 121, and the guide groove 1212a is located in the slide groove 1222a, and the connecting block 1222 and the slide groove 1222a are fitted together.
[0102] Figure 18 This is a structural schematic diagram of a shell connector provided in an embodiment of this application. For example... Figure 18 As shown, the side of the first plate 1221 away from the connecting block 1222 has a positioning protrusion 12211, and the surfaces of the first housing 200 and the second housing 300 have corresponding positioning holes. The positioning protrusion 12211 is used to cooperate with the positioning hole for positioning when the housing connector 122 is connected to the first housing 200 or the second housing 300.
[0103] The housing connector 122 also has a fixing hole 1221a, which passes through the first plate 1221 and the connecting block 1222. The fixing hole 1221a is used for connection with the first housing 200 or the second housing 300.
[0104] Optionally, along the direction away from the base 110, the height of the connecting block 1222 relative to the first plate 1221 gradually increases, so that the surface of the connecting block 1222 forms a slope. At the highest point of the connecting block 1222, there are two ear plates 12221, which are used for pivoting with the support plate 123.
[0105] The support plate 123 is located on the side of the connecting block 1222 away from the first plate 1221, and the support plate 123 is pivotally connected to the connecting block 1222. The support plate 123 has opposing first and second sides. The first side of the support plate 123 is pivotally connected to the connecting block 1222, and the second side of the support plate 123 is pivotally connected to the movable connector 124. Figure 19 This is a schematic diagram of a folding mechanism provided in an embodiment of this application. Figure 19 The flexible screen 400 is schematically shown in the diagram with dashed lines. (For example...) Figure 19 As shown, when the two folding components 120 are brought closer together, the two support plates 123 are closer to the side connected to the connecting block 1222, so that the two support plates 123 are in a figure-eight shape, and the flexible screen 400 is bent into a teardrop shape in the space enclosed by the two folding components 120 and the base 110.
[0106] Figure 20 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. For example... Figure 20 As shown, the electronic device includes a folding mechanism 100, a first housing 200, a second housing 300, and a flexible screen 400. The folding mechanism 100 is as follows: Figures 1 to 19Any of the folding mechanisms shown. The first housing 200 is connected to one housing connector 122 in the folding mechanism 100, and the second housing 300 is connected to the other housing connector 122 in the folding mechanism 100. The flexible screen 400 is located on the same side of the folding mechanism 100, the first housing 200, and the second housing 300, and is connected to both the first housing 200 and the second housing 300.
[0107] During the opening and closing of the first housing 200 and the second housing 300, the two folding components 120 are driven to open and close relative to each other. As the two folding components 120 close relative to each other, the movable connector 124 moves the support plate 123 away from the base 110, causing the support plate 123 and the housing connector 122 to move away from the swing arm 121 relative to the base 110. Therefore, in the closed state, the space formed between the support plate 123 of the two folding components 120 and the base 110 is larger, providing more space to accommodate the bending portion of the flexible screen 400 and preventing damage to the flexible screen 400. This folding mechanism, through the linkage between the movable connector 124 and the swing arm 121, drives the support plate 123 and the housing connector 122 to move. It has a simple structure, is easy to manufacture, and has a low cost.
[0108] The electronic device includes two folding mechanisms 100, and the bases 110 of the two folding mechanisms 100 are connected by a second plate 115, for example... Figure 15 As shown. In these two folding mechanisms 100, the support plate 123 of the folding assembly 120 near the first housing 200 is connected as a whole, and the support plate 123 of the folding assembly 120 near the second housing 300 is connected as a whole, so that the movement of the two folding mechanisms 100 is more synchronized.
[0109] The number of folding mechanisms 100 in an electronic device can be set according to the size of the electronic device. For smaller electronic devices, fewer folding mechanisms 100 can be set, such as one or two folding mechanisms 100. For larger electronic devices, more folding mechanisms 100 can be set, such as three or more folding mechanisms 100.
[0110] Reference Figure 2 As shown, the electronic device also includes a base plate 500, which is located at the bottom of the base 110 and connected to the base 110. The base plate 500 can play a role in shielding and protecting the base 110 and its internal structure, and also prevent external debris from entering the base 110 and affecting the normal operation of the folding mechanism 100.
[0111] The above description is merely one embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A folding mechanism, characterized in that, It includes a base (110) and two folding components (120), the two folding components (120) being located on both sides of the base (110) and connected to the base (110), and being able to open and close relative to each other; Each of the folding components (120) includes a swing arm (121), a housing connector (122), a support plate (123), and a movable connector (124); The swing arm (121) is pivotally connected to the base (110); The housing connector (122) is slidably connected to the swing arm (121) and can slide relative to the swing arm (121) in a direction close to or away from the base (110); The support plate (123) is pivotally connected to the housing connector (122); The movable connector (124) is at least partially located in the base (110) and slidably connected to the base (110). The movable connector (124) is pivotally connected to the support plate (123) and linked with the swing arm (121) to drive the support plate (123) in a direction close to or away from the base (110) under the action of the swing arm (121).
2. The folding mechanism according to claim 1, characterized in that, The top surface (111) of the base (110) has a slot (110b) into which the movable connector (124) is inserted. When the folding assembly (120) is in the unfolded state, the movable connector (124) is received in the slot (110b). When the folding assembly (120) is in the closed state, the movable connector (124) extends at least partially relative to the slot (110b).
3. The folding mechanism according to claim 2, characterized in that, The extension direction of the slot (110b) is perpendicular to the top surface (111) of the base (110).
4. The folding mechanism according to any one of claims 1 to 3, characterized in that, The movable connector (124) includes a sliding part (1241) and a driving part (1242). The sliding part (1241) and the driving part (1242) are connected. The sliding part (1241) is located on the side of the swing arm (121), and the driving part (1242) is located on the side of the sliding part (1241) close to the swing arm (121). The swing arm (121) has a drive groove (121a) located on the side wall opposite to the sliding part (1241) of the swing arm (121) and extending in a direction away from the pivot axis of the swing arm (121). The drive unit (1242) is partially located in the drive groove (121a).
5. The folding mechanism according to claim 4, characterized in that, The sliding part (1241) has a socket (1241a) located on the side wall of the sliding part (1241) near the swing arm (121), and the driving part (1242) is inserted into the socket (1241a).
6. The folding mechanism according to claim 5, characterized in that, The insertion hole (1241a) is located at one end of the sliding part (1241), and the other end of the sliding part (1241) has a first connecting hole (1241b). The sliding part (1241) is pivotally connected to the support plate (123) through the first connecting hole (1241b).
7. The folding mechanism according to any one of claims 4 to 6, characterized in that, The folding assembly (120) includes two movable connectors (124) arranged symmetrically about the swing arm (121).
8. The folding mechanism according to claim 7, characterized in that, The drive groove (121a) passes through the swing arm (121) in a direction parallel to the pivot axis of the swing arm (121). The drive units (1242) of the two movable connectors (124) are coaxial and connected.
9. The folding mechanism according to any one of claims 1 to 8, characterized in that, The top surface (111) of the base (110) has two mounting slots (110a), which are located near opposite sides of the base (110) and correspond one-to-one with the two folding components (120). The end of the swing arm (121) of the folding assembly (120) is located in the corresponding mounting groove (110a).
10. The folding mechanism according to any one of claims 1 to 9, characterized in that, The swing arms (121) of the two folding assemblies (120) rotate synchronously in opposite directions.
11. The folding mechanism according to claim 10, characterized in that, The swing arm (121) includes an incomplete gear part (1211) and a main body part (1212). The incomplete gear part (1211) is located at one end of the main body part (1212), and the incomplete gear part (1211) is pivotally connected to the base (110). The incomplete gear portion (1211) of the swing arm (121) of the two folding assemblies (120) engages; or, The folding mechanism further includes a synchronizing gear set (125) located in the base (110) and between the two folding components (120), wherein the incomplete gear portion (1211) of the swing arm (121) of the two folding components (120) meshes with the synchronizing gear set (125).
12. An electronic device, characterized in that, The device includes a folding mechanism (100), a first housing (200), a second housing (300), and a flexible screen (400). The folding mechanism (100) is the folding mechanism as described in any one of claims 1 to 11. The first housing (200) is connected to one of the housing connectors (122) in the folding mechanism (100), and the second housing (300) is connected to the other housing connector (122) in the folding mechanism (100). The flexible screen (400) is located on the same side of the folding mechanism (100), the first housing (200), and the second housing (300), and is connected to the first housing (200) and the second housing (300).