Electronic device, folding component and housing device

Abstract

The present application discloses an electronic device, a folding assembly and a housing device. The electronic device has a foldable structure and has an open state and a closed state. The electronic device includes a screen and a housing device for carrying the screen. The housing device includes a first housing, a second housing and a folding assembly connecting the first housing and the second housing. The first housing and the second housing can be relatively unfolded or relatively folded through the movement of the folding assembly. The folding assembly has a main shaft, two support plates located on both sides of the main shaft and a plurality of moving parts. When the electronic device is in the open state, the ends of the main shaft, the two support plates and the plurality of moving parts are spliced together, so as to provide a continuous support environment with small or no perforations, enabling the folding assembly to reliably support the bent portion of the screen, reducing the risk of the bent portion of the screen being recessed under pressing or impact, and improving the reliability of the screen.

Description

Technical Field

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

[0002] In recent years, due to characteristics such as being thin, light, and not easily broken, screens have been widely used in various foldable electronic devices. Among them, the foldable electronic device also includes a housing device for carrying the screen. The housing device includes a first housing, a second housing, and a folding assembly connecting the first housing and the second housing. The first housing and the second housing can be relatively unfolded to an open state or relatively folded to a closed state through the movement of the folding assembly, and the screen unfolds or folds with the housing device.

[0003] However, since the folding assembly usually has multiple perforations to facilitate the movement of moving parts, it is difficult for the folding assembly to provide a relatively complete support environment for the bent portion of the screen. As a result, the bent portion of the screen is prone to dents and damage due to the user's pressing operation or collision in the open state, reducing the service life of the screen. Summary of the Invention

[0004] This application provides an electronic device, a folding assembly, and a housing device. The electronic device includes a screen and a housing device for carrying the screen. The housing device includes a first housing, a folding assembly, and a second housing connected in sequence. The folding assembly can provide a relatively complete support environment for the bent portion of the screen of the electronic device, reducing the risk of damage when the bent portion of the screen is pressed or collided, and improving the reliability of the screen.

[0005] In a first aspect, this application provides an electronic device having an open state and a closed state. The electronic device includes a housing device and a screen. The housing device includes a first housing, a second housing, and a folding assembly. The folding assembly connects the first housing and the second housing. Through the movement of the folding assembly, the first housing and the second housing can be relatively unfolded or relatively folded. When the housing device is relatively unfolded, the electronic device is in an open state, the screen is flattened, and the screen can perform full-screen display, enabling the electronic device to have a larger display area to improve the user's viewing experience and operation experience. When the housing device is relatively folded, the electronic device is in a closed state, and the planar size of the electronic device is smaller, facilitating user carrying and storage.

[0006] The screen includes a first non-bent portion, a bent portion, and a second non-bent portion arranged in sequence. The first non-bent portion is fixed to the first housing, and the second non-bent portion is fixed to the second housing. During the process of the relative unfolding or relative folding of the first housing and the second housing, the bent portion deforms.

[0007] The folding assembly includes a main shaft, a first fixing bracket, a second fixing bracket, a first swing arm, a second swing arm, a first support plate and a second support plate. The main shaft includes a main support plate, and the main support plate is provided with a first avoidance notch and a second avoidance notch. The first fixing bracket is fixedly connected to the first housing, and the second fixing bracket is fixedly connected to the second housing. The first swing arm includes a rotating end and a sliding end. The rotating end of the first swing arm includes a first splicing block. The rotating end of the first swing arm is rotatably connected to the main shaft. The first avoidance notch is used to avoid the first swing arm, so that there is no interference between the first swing arm and the main support plate, ensuring the smoothness and reliability of the mechanism movement. The second swing arm includes a rotating end and a sliding end. The rotating end of the second swing arm includes a second splicing block. The rotating end of the second swing arm is rotatably connected to the main shaft. The second avoidance notch is used to avoid the second swing arm, so that there is no interference between the second swing arm and the main support plate, ensuring the smoothness and reliability of the mechanism movement. The sliding end of the first swing arm is slidably connected to the first fixing bracket, and the sliding end of the second swing arm is slidably connected to the second fixing bracket.

[0008] When the electronic device is in the open state, at least a part of the first splicing block is located in the first avoidance notch, and at least a part of the second splicing block is located in the second avoidance notch. The first support plate and the second support plate are respectively located on both sides of the main support plate. The main support plate, the first splicing block, the second splicing block, the first support plate and the second support plate jointly support the bent portion of the screen. At this time, the folding assembly can provide a relatively complete support environment for the bent portion of the screen, so that when the bent portion of the screen is pressed or impacted, the risk of obvious depression or damage is small, improving the reliability of the screen.

[0009] In some possible implementation manners, the main shaft has a moving space, and the moving space communicates with the first avoidance notch and the second avoidance notch. When the electronic device is in the closed state, the first splicing block and the second splicing block are transferred into the moving space. At this time, the connecting sections of the first swing arm and the second swing arm can approach each other through the first avoidance notch and the second avoidance notch, and the distance between them is small, so that the folding assembly as a whole forms a receiving space similar to a water droplet shape.

[0010] In some possible implementation manners, the main support plate has a support surface for supporting the screen. When the electronic device is in the open state, the end surface of the first splicing block, the end surface of the second splicing block and the support surface of the main support plate are flush. At this time, the end surface of the first splicing block, the end surface of the second splicing block and the support surface of the main support plate are in the same plane, jointly supporting the bent portion of the screen, providing a relatively complete and flat support environment for the bent portion of the screen, so as to improve the reliability of the screen.

[0011] In some possible implementation manners, when the electronic device is in an open state, the supporting surface of the first supporting plate, the supporting surface of the second supporting plate, the supporting surface of the main supporting plate, the end surface of the first splicing block, and the end surface of the second splicing block are spliced. That is, the supporting surface of the main supporting plate, the end surface of the first splicing block, the supporting surface of the first supporting plate, the end surface of the second splicing block, and the supporting surface of the second supporting plate jointly form the supporting surface of the folding assembly. At this time, the supporting surface of the folding assembly has no perforations or very small perforations, and the supporting surface of the folding assembly is relatively complete, which can provide a good supporting environment for the bending part of the screen to improve the reliability of the screen.

[0012] In some possible implementation manners, the supporting surface of the first supporting plate can be a flat surface to provide a better supporting environment for the bending part of the screen.

[0013] In some possible implementation manners, one or more grooves with very shallow depths are provided on the supporting surface of the first supporting plate. These grooves can be used for but not limited to coating or installing an adhesive layer, and the bending part of the screen is connected through the adhesive layer. It can be understood that the depth of these grooves is very small, and the area of the screen corresponding to these grooves will not have obvious depressions when subjected to external pressure (such as the pressing force of a user), so that the reliability of the screen is relatively high and the service life is relatively long.

[0014] In some possible implementation manners, the first supporting plate includes a first supplementary block, and the second supporting plate includes a second supplementary block. When the electronic device is in an open state, the first supplementary block is at least partially located in the first avoidance notch, so that the splicing effect of the supporting surface of the first supporting plate, the end surface of the first splicing block, and the supporting surface of the main supporting plate is better, and the gap between adjacent supporting surfaces is smaller. Similarly, the second supplementary block can be at least partially located in the second avoidance notch, so that the splicing effect of the supporting surface of the second supporting plate, the end surface of the second splicing block, and the supporting surface of the main supporting plate is better, and the gap between adjacent supporting surfaces is smaller.

[0015] In some possible implementation manners, the main shaft has a first arc-shaped space and a second arc-shaped space, and the main supporting plate further includes a first avoidance hole and a second avoidance hole. The first avoidance hole communicates with the first arc-shaped space, and the second avoidance hole communicates with the second arc-shaped space.

[0016] The folding assembly further includes a first connecting arm and a second connecting arm. The first connecting arm includes a first end and a second end. The first end of the first connecting arm includes a first arc-shaped arm, and the first arc-shaped arm is installed in the first arc-shaped space so that the first end of the first connecting arm is rotatably connected to the main shaft, and the second end of the first connecting arm is rotatably connected to the first fixing frame. The second connecting arm includes a first end and a second end. The first end of the second connecting arm includes a second arc-shaped arm, and the second arc-shaped arm is installed in the second arc-shaped space so that the first end of the second connecting arm is rotatably connected to the main shaft, and the second end of the second connecting arm is rotatably connected to the second fixing frame.

[0017] When the electronic device is in the open state, at least a part of the end of the first arc-shaped arm is located in the first avoidance hole. At this time, the design of the first avoidance hole enables the first arc-shaped arm to have a larger arc. The matching arc between the first arc-shaped arm and the first arc-shaped space of the main support plate (i.e., the arc at which the first arc-shaped arm extends into the first arc-shaped space) is larger, and the relative movement between the two is smoother. In addition, the risk of the first arc-shaped arm detaching from the main support plate can be reduced, making the connection relationship between the two more reliable. At least a part of the end of the second arc-shaped arm is located in the second avoidance hole. At this time, the design of the second avoidance hole enables the second arc-shaped arm to have a larger arc. The matching arc between the second arc-shaped arm and the second arc-shaped space of the main support plate is larger, and the relative movement between the two is smoother. In addition, the risk of the second arc-shaped arm detaching from the main support plate can be reduced, making the connection relationship between the two more reliable. In some possible implementation manners, at least a part of the first bump of the first arc-shaped arm is located in the first avoidance hole of the main support plate, and at least a part of the second bump of the second arc-shaped arm is located in the second avoidance hole of the main support plate. When the folding assembly is in the open state, since at least a part of the first bump is located in the first avoidance hole, the first avoidance hole can be filled, and at least a part of the second bump is located in the second avoidance hole, the second avoidance hole can be filled, enabling the main support plate to provide a relatively complete support environment for the bending part of the screen to improve the reliability of the screen.

[0018] In some possible implementation manners, when the folding assembly is in the open state, the first bump occupies most of the space of the first avoidance hole, and the second bump occupies most of the space of the second avoidance hole, thereby providing a complete support environment.

[0019] In some possible implementation manners, the end face of the first bump can be flush with the support face of the main support plate to achieve splicing, and the end face of the second bump can be flush with the support face of the main support plate to achieve splicing, thereby providing a more complete and flat support environment.

[0020] In some possible implementation manners, the end face of the first bump is slightly concave relative to the support face of the main support plate to balance the connection requirements of the first arc-shaped arm and the support requirements of the screen. At this time, since the opening area of the first avoidance hole is small and the degree of concavity of the end face of the first bump relative to the support face of the main support plate is shallow, when the bending part of the screen corresponding to the first avoidance hole is pressed or impacted, the risk of obvious depression or damage is small, and the reliability of the screen is high.

[0021] The end face of the second bump is slightly concave relative to the support surface of the main support plate, so as to balance the connection requirements of the second arc-shaped arm and the support requirements of the screen. At this time, since the opening area of the second avoidance hole is small and the concave degree of the end face of the second bump relative to the support surface of the main support plate is shallow, when the bent portion of the screen corresponding to the second avoidance hole is pressed or impacted, the risk of obvious depression or damage is small, and the reliability of the screen is high.

[0022] In some possible implementation manners, through structural design or dimension design, etc., the matching radian of the first arc-shaped arm and the second arc-shaped arm with the main support plate is sufficient. At this time, the first avoidance hole and the second avoidance hole are not provided on the main support plate, and the integrity of the main support plate is relatively high, and it can better support the bent portion of the screen.

[0023] In some possible implementation manners, the first end of the first connecting arm and / or the first end of the second connecting arm are rotationally connected to the main shaft by means of a solid shaft connection, and the second end of the first connecting arm and / or the second end of the second connecting arm are rotationally connected to the first fixing frame and the second fixing frame by means of a virtual shaft connection.

[0024] In some possible implementation manners, the first fixing frame has a first fitting groove, and the first fitting groove has a fitting wall surface. The connecting section of the first connecting arm includes a first fitting block, and the first fitting block includes a fitting surface facing the second end of the first connecting arm. The first fitting block is installed in the first fitting groove, and the fitting surface of the first fitting block contacts the fitting wall surface of the first fitting groove. The contact structure between the fitting surface and the fitting wall surface increases the contact area between the fitting block and the fixing frame, thereby increasing the connection stability between the connecting arm and the fixing frame and improving the reliability of the folding assembly.

[0025] In some possible implementation manners, the fitting surface of the first fitting block and / or the fitting wall surface of the first fitting groove are arc surfaces, and the fitting surface of the first fitting block and the fitting wall surface of the first fitting groove form an arc surface lap joint. The arc surface lap joint structure increases the connection stability between the connecting arm and the fixing frame during the movement of the folding assembly, makes the relative movement between the connecting arm and the fixing frame smoother, and improves the reliability of the folding assembly.

[0026] In some possible implementation manners, the main support plate includes a first support block and a second support block, and the first support block and the second support block are respectively convexly provided on both sides of the main support plate. When the electronic device is in the open state, the first support plate overlaps the first support block, and the second support plate overlaps the second support block. When the folding assembly is in the open state, since the first support block of the main support plate can provide rigid support for the first support plate and the second support block can provide rigid support for the second support plate, the local stiffness of the first support plate and the second support plate can be improved through the overlap design, and the pressing virtual position of the first support plate and the second support plate can be reduced to improve the reliability of the screen.

[0027] In some possible implementation manners, the first support plate has a first lapping surface that laps the support surface of the first support block. An inclined surface fit is formed between the first lapping surface of the first support plate and the support surface of the first support block, which is beneficial to increasing the lapping area and making the support of the first support block on the first support plate more stable. The second support plate has a first lapping surface that laps the support surface of the second support block. An inclined surface fit is formed between the first lapping surface of the second support plate and the support surface of the second support block, which is beneficial to increasing the lapping area and making the support of the second support block on the second support plate more stable.

[0028] In some possible implementation manners, the main shaft further includes a cover body. The cover body is fixed to one side of the main support plate facing away from the support surface of the main support plate. The cover body further includes a third support block and a fourth support block. The third support block and the fourth support block are respectively convexly provided on both sides of the cover body. When the electronic device is in the open state, the first support plate laps the third support block, and the second support plate laps the fourth support block. The lapping structure makes the support of the support block on the support plate more stable and increases the reliability of the folding assembly.

[0029] In some possible implementation manners, the first support plate has a third lapping surface that laps a plurality of third support blocks of the cover body. An inclined surface fit is formed between the third lapping surface of the first support plate and the plurality of third support blocks of the cover body. This not only helps to increase the lapping area and makes the support of the plurality of third support blocks of the cover body on the first support plate more stable, but also enables the relative movement between the first support plate and the plurality of third support blocks of the cover body to be less likely to interfere and be smoother. The second support plate has a third lapping surface that laps a plurality of fourth support blocks of the cover body. An inclined surface fit is formed between the third lapping surface of the second support plate and the plurality of fourth support blocks of the cover body. This not only helps to increase the lapping area and makes the support of the plurality of fourth support blocks of the cover body on the second support plate more stable, but also enables the relative movement between the second support plate and the plurality of fourth support blocks of the cover body to be less likely to interfere and be smoother.

[0030] In some possible implementation manners, the third support block protrudes towards the direction close to the main support plate, and the third support block and the first support block are arranged in a staggered manner. Since the third support block protrudes towards the direction close to the main support plate and the third support block and the first support block are arranged in a staggered manner, and the support surfaces of the third support block and the first support block are close, the third support block and the first support block can better support the first support plate simultaneously, and the structural requirements for the first support plate are relatively low, and the support structure is easy to implement.

[0031] In some possible implementation manners, the first support plate has a third lapping surface for lapping a plurality of third support blocks of the cover body. An inclined surface fit is formed between the third lapping surface of the first support plate and the plurality of third support blocks of the cover body, which not only helps to increase the lapping area, making the support of the plurality of third support blocks of the cover body on the first support plate more stable, but also enables the relative movement between the first support plate and the plurality of third support blocks of the cover body to be less likely to interfere and be smoother.

[0032] In some possible implementation manners, when the electronic device is in the open state, the first support plate laps the first swing arm, and the second support plate laps the second swing arm. Since the first swing arm can provide rigid support for the first support plate and the second swing arm can provide rigid support for the second support plate, the local stiffness of the first support plate and the second support plate can be improved through the lapping design, and the pressing virtual position of the first support plate and the second support plate can be reduced to enhance the reliability of the screen.

[0033] In some possible implementation manners, the first support plate has a second lapping surface for lapping the first swing arm. An inclined surface fit is formed between the second lapping surface of the first support plate and the first swing arm, which not only helps to increase the lapping area, making the support of the first swing arm on the first support plate more stable, but also enables the relative movement between the first support plate and the first swing arm to be less likely to interfere and be smoother. The second support plate has a second lapping surface for lapping the second swing arm. An inclined surface fit is formed between the second lapping surface of the second support plate and the second swing arm, which not only helps to increase the lapping area, making the support of the second swing arm on the second support plate more stable, but also enables the relative movement between the second support plate and the second swing arm to be less likely to interfere and be smoother.

[0034] In some possible implementation manners, when the electronic device is in the closed state, the first support plate laps the first fixing frame, the first swing arm or the first connecting arm, and the second support plate laps the second fixing frame, the second swing arm or the second connecting arm. At this time, the swing arm, the fixing frame and the connecting arm of the connecting component can all provide rigid support for the support plate, making the relative positions of the first support plate and the second support plate stable and providing a stable support environment for the bending part of the screen. The first support plate and the second support plate can cooperate with the main shaft to form a receiving space with better stability, and it is easier to maintain the water droplet shape of the bending part of the screen, which is beneficial to improving the reliability of the screen.

[0035] In a second aspect, the present application provides a folding component applied to an electronic device. The folding component is used to support the bending part of the screen of the electronic device, and the folding component has an open state and a closed state.

[0036] The folding assembly includes a main shaft, a first fixing bracket, a second fixing bracket, a first swing arm, a second swing arm, a first support plate and a second support plate. The main shaft includes a main support plate, and the main support plate is provided with a first avoidance notch and a second avoidance notch. The first fixing bracket is fixedly connected to the first housing, and the second fixing bracket is fixedly connected to the second housing. The first swing arm includes a rotating end and a sliding end. The rotating end of the first swing arm includes a first splicing block. The rotating end of the first swing arm is rotatably connected to the main shaft. The first avoidance notch is used to avoid the first swing arm so that there is no interference between the first swing arm and the main support plate, ensuring the smoothness and reliability of the mechanism movement. The second swing arm includes a rotating end and a sliding end. The rotating end of the second swing arm includes a second splicing block. The rotating end of the second swing arm is rotatably connected to the main shaft. The second avoidance notch is used to avoid the second swing arm so that there is no interference between the second swing arm and the main support plate, ensuring the smoothness and reliability of the mechanism movement. The sliding end of the first swing arm is slidably connected to the first fixing bracket, and the sliding end of the second swing arm is slidably connected to the second fixing bracket.

[0037] When the electronic device is in the open state, at least a part of the first splicing block is located in the first avoidance notch, and at least a part of the second splicing block is located in the second avoidance notch. The first support plate and the second support plate are respectively located on both sides of the main support plate. The main support plate, the first splicing block, the second splicing block, the first support plate and the second support plate jointly support the bending part of the screen. At this time, the folding assembly can provide a relatively complete support environment for the bending part of the screen, so that when the bending part of the screen is pressed or impacted, the risk of obvious depression or damage is small, improving the reliability of the screen.

[0038] In some possible implementation manners, the main shaft has a moving space, and the moving space communicates with the first avoidance notch and the second avoidance notch. When the electronic device is in the closed state, the first splicing block and the second splicing block are rotated into the moving space. At this time, the connecting sections of the first swing arm and the second swing arm can approach each other through the first avoidance notch and the second avoidance notch, and the distance between them is small, so that the folding assembly as a whole forms a receiving space similar to a water droplet shape.

[0039] In some possible implementation manners, the main support plate has a support surface for supporting the screen. When the electronic device is in the open state, the end surface of the first splicing block, the end surface of the second splicing block and the support surface of the main support plate are flush. At this time, the end surface of the first splicing block, the end surface of the second splicing block and the support surface of the main support plate form a plane, jointly supporting the bending part of the screen and providing a relatively complete and flat support environment for the bending part of the screen to improve the reliability of the screen.

[0040] In some possible implementation manners, when the electronic device is in an open state, the supporting surface of the first supporting plate, the supporting surface of the second supporting plate, the supporting surface of the main supporting plate, the end surface of the first splicing block, and the end surface of the second splicing block are spliced. That is, the supporting surface of the main supporting plate, the end surface of the first splicing block, the supporting surface of the first supporting plate, the end surface of the second splicing block, and the supporting surface of the second supporting plate jointly form the supporting surface of the folding assembly. At this time, the supporting surface of the folding assembly has no perforations or very small perforations, and the supporting surface of the folding assembly is relatively complete, which can provide a good supporting environment for the bending part of the screen to improve the reliability of the screen.

[0041] In some possible implementation manners, the supporting surface of the first supporting plate can be a flat surface to provide a better supporting environment for the bending part of the screen.

[0042] In some possible implementation manners, one or more very shallow grooves are provided on the supporting surface of the first supporting plate. These grooves can be used for, but not limited to, coating or installing an adhesive layer, and connecting the bending part of the screen through the adhesive layer. It can be understood that the depth of these grooves is very small, and the area of the screen corresponding to these grooves will not have obvious depressions when subjected to external pressure (such as the pressing force of a user), so that the reliability of the screen is relatively high and the service life is relatively long.

[0043] In some possible implementation manners, the first supporting plate includes a first supplementary block, and the second supporting plate includes a second supplementary block. When the electronic device is in an open state, at least a part of the first supplementary block is located in the first avoidance notch, so that the splicing effect of the supporting surface of the first supporting plate, the end surface of the first splicing block, and the supporting surface of the main supporting plate is better, and the gap between adjacent supporting surfaces is smaller. Similarly, at least a part of the second supplementary block can be located in the second avoidance notch, so that the splicing effect of the supporting surface of the second supporting plate, the end surface of the second splicing block, and the supporting surface of the main supporting plate is better, and the gap between adjacent supporting surfaces is smaller.

[0044] In some possible implementation manners, the main shaft has a first arc-shaped space and a second arc-shaped space, and the main supporting plate further includes a first avoidance hole and a second avoidance hole. The first avoidance hole communicates with the first arc-shaped space, and the second avoidance hole communicates with the second arc-shaped space.

[0045] The folding assembly further includes a first connecting arm and a second connecting arm. The first connecting arm includes a first end and a second end. The first end of the first connecting arm includes a first arc-shaped arm, and the first arc-shaped arm is installed in the first arc-shaped space so that the first end of the first connecting arm is rotatably connected to the main shaft, and the second end of the first connecting arm is rotatably connected to the first fixing frame. The second connecting arm includes a first end and a second end. The first end of the second connecting arm includes a second arc-shaped arm, and the second arc-shaped arm is installed in the second arc-shaped space so that the first end of the second connecting arm is rotatably connected to the main shaft, and the second end of the second connecting arm is rotatably connected to the second fixing frame.

[0046] When the electronic device is in the open state, at least a part of the end of the first arc-shaped arm is located in the first avoidance hole. At this time, the design of the first avoidance hole enables the first arc-shaped arm to have a larger arc, and the matching arc between the first arc-shaped arm and the first arc-shaped space of the main support plate (that is, the arc of the first arc-shaped arm extending into the first arc-shaped space) is larger, and the relative movement between the two is smoother. In addition, the risk of the first arc-shaped arm detaching from the main support plate can be reduced, making the connection relationship between the two more reliable. At least a part of the end of the second arc-shaped arm is located in the second avoidance hole. At this time, the design of the second avoidance hole enables the second arc-shaped arm to have a larger arc, and the matching arc between the second arc-shaped arm and the second arc-shaped space of the main support plate is larger, and the relative movement between the two is smoother. In addition, the risk of the second arc-shaped arm detaching from the main support plate can be reduced, making the connection relationship between the two more reliable. In some possible implementation manners, at least a part of the first convex block of the first arc-shaped arm is located in the first avoidance hole of the main support plate, and at least a part of the second convex block of the second arc-shaped arm is located in the second avoidance hole of the main support plate. When the folding assembly is in the open state, since at least a part of the first convex block is located in the first avoidance hole, the first avoidance hole can be filled, and at least a part of the second convex block is located in the second avoidance hole, the second avoidance hole can be filled, so that the main support plate can provide a relatively complete support environment for the bending part of the screen to improve the reliability of the screen.

[0047] In some possible implementation manners, when the folding assembly is in the open state, the first convex block occupies most of the space of the first avoidance hole, and the second convex block occupies most of the space of the second avoidance hole, so as to provide a complete support environment.

[0048] In some possible implementation manners, the end face of the first convex block can be flush with the support face of the main support plate to achieve splicing, and the end face of the second convex block can be flush with the support face of the main support plate to achieve splicing, so as to provide a more complete and flat support environment.

[0049] In some possible implementation manners, the end face of the first convex block is slightly concave relative to the support face of the main support plate to take into account the connection requirements of the first arc-shaped arm and the support requirements of the screen. At this time, since the opening area of the first avoidance hole is small and the degree of concavity of the end face of the first convex block relative to the support face of the main support plate is shallow, when the bending part of the screen corresponding to the first avoidance hole is pressed or collided, the risk of obvious depression or damage is small, and the reliability of the screen is high.

[0050] ​The end face of the second bump is slightly concave relative to the support surface of the main support plate, so as to take into account the connection requirements of the second arc-shaped arm and the support requirements of the screen. At this time, since the opening area of the second avoidance hole is small and the degree of concavity of the end face of the second bump relative to the support surface of the main support plate is shallow, when the bent portion of the screen corresponding to the second avoidance hole is pressed or impacted, the risk of obvious depression or damage is small, and the reliability of the screen is high.

[0051] In some possible implementation manners, through structural design or dimension design, etc., the matching radian of the first arc-shaped arm and the second arc-shaped arm with the main support plate is sufficient. At this time, the first avoidance hole and the second avoidance hole are not provided on the main support plate, and the integrity of the main support plate is high, and it can better support the bent portion of the screen.

[0052] In some possible implementation manners, the first end of the first connecting arm is rotationally connected to the main shaft by means of a solid shaft; and / or, the first end of the second connecting arm is rotationally connected to the main shaft by means of a solid shaft; and / or, the second end of the first connecting arm is rotationally connected to the first fixing bracket by means of a virtual shaft; and / or, the second end of the second connecting arm is rotationally connected to the second fixing bracket by means of a virtual shaft.

[0053] In some possible implementation manners, the first fixing bracket has a first fitting groove, and the first fitting groove has a fitting wall surface. The connecting section of the first connecting arm includes a first fitting block, and the first fitting block includes a fitting surface facing the second end of the first connecting arm. The first fitting block is installed in the first fitting groove, and the fitting surface of the first fitting block contacts the fitting wall surface of the first fitting groove. The contact structure between the fitting surface and the fitting wall surface increases the contact area between the fitting block and the fixing bracket, thereby increasing the connection stability between the connecting arm and the fixing bracket and improving the reliability of the folding assembly.

[0054] In some possible implementation manners, the fitting surface of the first fitting block and / or the fitting wall surface of the first fitting groove is an arc surface, and the fitting surface of the first fitting block and the fitting wall surface of the first fitting groove form an arc surface lap joint. The arc surface lap joint structure increases the connection stability between the connecting arm and the fixing bracket during the movement of the folding assembly, makes the relative movement between the connecting arm and the fixing bracket smoother, and improves the reliability of the folding assembly.

[0055] In some possible implementation manners, the main support plate includes a first support block and a second support block, and the first support block and the second support block are respectively protrudingly provided on both sides of the main support plate. When the electronic device is in the open state, the first support plate overlaps the first support block, and the second support plate overlaps the second support block. When the folding assembly is in the open state, since the first support block of the main support plate can provide rigid support for the first support plate and the second support block can provide rigid support for the second support plate, the local stiffness of the first support plate and the second support plate can be improved through the overlapping design, and the pressing virtual position of the first support plate and the second support plate can be reduced to enhance the reliability of the screen.

[0056] In some possible implementation manners, the first support plate has a first overlapping surface that overlaps the support surface of the first support block, and an inclined surface fit is formed between the first overlapping surface of the first support plate and the support surface of the first support block, which is beneficial to increasing the overlapping area and making the support of the first support block on the first support plate more stable. The second support plate has a first overlapping surface that overlaps the support surface of the second support block, and an inclined surface fit is formed between the first overlapping surface of the second support plate and the support surface of the second support block, which is beneficial to increasing the overlapping area and making the support of the second support block on the second support plate more stable.

[0057] In some possible implementation manners, the main shaft further includes a cover body, the cover body is fixed to the side of the main support plate facing away from the support surface of the main support plate, and the cover body further includes a third support block and a fourth support block, and the third support block and the fourth support block are respectively protrudingly provided on both sides of the cover body. When the electronic device is in the open state, the first support plate overlaps the third support block, and the second support plate overlaps the fourth support block. The overlapping structure makes the support of the support block on the support plate relatively stable and increases the reliability of the folding assembly.

[0058] In some possible implementation manners, the first support plate has a third overlapping surface that overlaps multiple third support blocks of the cover body, and an inclined surface fit is formed between the third overlapping surface of the first support plate and the multiple third support blocks of the cover body. This is not only beneficial to increasing the overlapping area and making the support of the multiple third support blocks of the cover body on the first support plate more stable, but also can make the relative movement between the first support plate and the multiple third support blocks of the cover body less likely to interfere and more smooth. The second support plate has a third overlapping surface that overlaps multiple fourth support blocks of the cover body, and an inclined surface fit is formed between the third overlapping surface of the second support plate and the multiple fourth support blocks of the cover body. This is not only beneficial to increasing the overlapping area and making the support of the multiple fourth support blocks of the cover body on the second support plate more stable, but also can make the relative movement between the second support plate and the multiple fourth support blocks of the cover body less likely to interfere and more smooth.

[0059] In some possible implementation manners, the third support block protrudes towards the main support plate, and the third support block and the first support block are arranged in a staggered manner. Since the third support block protrudes towards the main support plate and the third support block and the first support block are arranged in a staggered manner, the support surfaces of the third support block and the first support block are close to each other. Therefore, the third support block and the first support block can better support the first support plate simultaneously, and have lower structural requirements for the first support plate, and the support structure is easy to implement.

[0060] In some possible implementation manners, the first support plate has a third lapping surface for lapping a plurality of third support blocks of the cover body, and an inclined surface fit is formed between the third lapping surface of the first support plate and the plurality of third support blocks of the cover body. This is not only beneficial to increasing the lapping area, making the support of the plurality of third support blocks of the cover body on the first support plate more stable, but also enabling the relative movement between the first support plate and the plurality of third support blocks of the cover body not to interfere easily and be smoother.

[0061] In some possible implementation manners, when the electronic device is in the open state, the first support plate laps the first swing arm, and the second support plate laps the second swing arm. Since the first swing arm can provide rigid support for the first support plate and the second swing arm can provide rigid support for the second support plate, the local stiffness of the first support plate and the second support plate can be improved through the lapping design, and the pressing virtual position of the first support plate and the second support plate can be reduced to enhance the reliability of the screen.

[0062] In some possible implementation manners, the first support plate has a second lapping surface for lapping the first swing arm, and an inclined surface fit is formed between the second lapping surface of the first support plate and the first swing arm. This is not only beneficial to increasing the lapping area, making the support of the first swing arm on the first support plate more stable, but also enabling the relative movement between the first support plate and the first swing arm not to interfere easily and be smoother. The second support plate has a second lapping surface for lapping the second swing arm, and an inclined surface fit is formed between the second lapping surface of the second support plate and the second swing arm. This is not only beneficial to increasing the lapping area, making the support of the second swing arm on the second support plate more stable, but also enabling the relative movement between the second support plate and the second swing arm not to interfere easily and be smoother.

[0063] In some possible implementation manners, when the electronic device is in the closed state, the first support plate laps the first fixing frame, the first swing arm or the first connecting arm, and the second support plate laps the second fixing frame, the second swing arm or the second connecting arm. At this time, the swing arm, the fixing frame and the connecting arm of the connecting component can all provide rigid support for the support plate, making the relative positions of the first support plate and the second support plate stable, and providing a stable support environment for the bending part of the screen. The first support plate and the second support plate can cooperate with the main shaft to form a receiving space with better stability, and it is easier to maintain the water droplet shape of the bending part of the screen, which is beneficial to improving the reliability of the screen.

[0064] In a third aspect, the present application provides a housing device. The housing device includes a first housing, a second housing, and the above-described folding assembly. The first fixing frame of the folding assembly is fixedly connected to the first housing, and the second fixing frame of the folding assembly is fixedly connected to the second housing. Through the movement of the folding assembly, the first housing and the second housing can be relatively unfolded or relatively folded. The housing device can provide a relatively complete support environment, reducing the risk of damage when the components it supports are pressed or collided, and improving the reliability of the components it supports. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] Figure 1 is a schematic structural diagram of an electronic device provided by an embodiment of the present application when in an open state;

[0066] Figure 2 is Figure 1 a schematic structural diagram of the electronic device shown when in an intermediate state;

[0067] Figure 3 is Figure 1 a schematic structural diagram of the electronic device shown when in a closed state;

[0068] Figure 4 is Figure 1 a partial exploded structural diagram of the electronic device shown;

[0069] Figure 5 is Figure 4 a partial exploded schematic diagram of the housing device shown;

[0070] Figure 6 is Figure 5 a partial exploded structural diagram of the folding assembly shown;

[0071] Figure 7 is Figure 6 a partial exploded structural diagram of the main shaft and multiple connection components shown;

[0072] Figure 8 is Figure 6 a partial structural diagram of the main shaft shown;

[0073] Figure 9 is Figure 8 a cross-sectional structural diagram of the main shaft shown taken along A-A;

[0074] Figure 10 is Figure 8 a cross-sectional structural diagram of the main shaft shown taken along B-B;

[0075] Figure 11 is Figure 7 a structural diagram of the top connection component shown;

[0076] Figure 12 is Figure 11 a partial exploded structural schematic diagram of the top connection assembly shown;

[0077] Figure 13 is Figure 12 a structural schematic diagram of the first connecting arm shown;

[0078] Figure 14 is Figure 12 a structural schematic diagram of the second connecting arm shown;

[0079] Figure 15 is Figure 13 a structural schematic diagram of the first swing arm shown;

[0080] Figure 16 is Figure 12 a structural schematic diagram of the second swing arm shown;

[0081] Figure 17A is Figure 12 a structural schematic diagram of the damping component shown;

[0082] Figure 17B is Figure 17A an exploded structural schematic diagram of the damping component shown;

[0083] Figure 18 is Figure 11 a structural schematic diagram of a part of the structure of the top connection assembly shown;

[0084] Figure 19 is Figure 12 a structural schematic diagram of the first fixing bracket shown;

[0085] Figure 20 is Figure 19 a structural schematic diagram of the first fixing bracket at another angle shown;

[0086] Figure 21 is Figure 12 a structural schematic diagram of the second fixing bracket shown;

[0087] Figure 22 is Figure 12 a structural schematic diagram of the second fixing bracket at another angle shown;

[0088] Figure 23 is Figure 11 an assembled structural schematic diagram of the top connection assembly and the top cover of the main shaft;

[0089] Figure 24 is Figure 11 an assembled structural schematic diagram of the top connection assembly and the main shaft;

[0090] Figure 25 is Figure 24Schematic diagram of the cross-sectional structure of the shown structure cut along C-C;

[0091] Figure 26 is Figure 24 Schematic diagram of the cross-sectional structure of the shown structure cut along D-D;

[0092] Figure 27 is Figure 25 Schematic diagram of the shown structure in the closed state;

[0093] Figure 28 is Figure 26 Schematic diagram of the shown structure in the closed state;

[0094] Figure 29 is Figure 24 Schematic diagram of the cross-sectional structure of the shown structure cut along E-E;

[0095] Figure 30 is Figure 24 Schematic diagram of the cross-sectional structure of the shown structure cut along F-F;

[0096] Figure 31 is Figure 30 Schematic diagram of the shown structure in the closed state;

[0097] Figure 32 is Figure 6 Schematic diagram of the first support plate and the second support plate of the shown structure at another angle;

[0098] Figure 33 is Figure 5 Schematic diagram of the cross-sectional structure of the shown folding component cut along G-G;

[0099] Figure 34 is Figure 33 Schematic diagram of the shown structure in the closed state;

[0100] Figure 35 is Figure 5 Schematic diagram of the cross-sectional structure of the shown folding component cut along H-H;

[0101] Figure 36 is Figure 35 Schematic diagram of the shown structure in the closed state;

[0102] Figure 37 is Figure 5 Schematic diagram of the cross-sectional structure of the shown folding component cut along I-I;

[0103] Figure 38 is Figure 3 Schematic diagram of the cross-sectional structure of the shown electronic device cut along J-J;

[0104] Figure 39 is Figure 3 The schematic cross-sectional structure diagram of the electronic device shown in the figure is cut along K-K;

[0105] Figure 40 is Figure 3 The schematic cross-sectional structure diagram of the electronic device shown in the figure is cut along L-L. Specific embodiments

[0106] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

[0107] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed connection" means that the two are connected and the relative position relationship after connection remains unchanged. It should be understood that when component A is fixedly connected to component C through component B, a change in the relative position relationship due to the deformation of component A, component B, and component C itself is allowed. "Rotational connection" means that the two are connected and can rotate relative to each other after connection. "Sliding connection" means that the two are connected and can slide relative to each other after connection. Among them, the integration of two components through an integrated molding process means that in the process of forming one of the two components, the component is connected to the other component, and there is no need to connect the two components through a reprocessing method (such as bonding, welding, snap connection, screw connection).

[0108] The orientation terms mentioned in the embodiments of the present application, such as "upper", "lower", "side", "top", "bottom", etc., are only references to the directions in the accompanying drawings. Therefore, the orientation terms used are for better and clearer description and understanding of the embodiments of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the embodiments of the present application.

[0109] The term "plurality" means at least two. The term "and / or" is a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as implying or suggesting relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0110] The present application provides an electronic device, which is a foldable structure and has an open state and a closed state. The electronic device includes a screen and a housing device for carrying the screen. The housing device includes a first housing, a second housing, and a folding assembly connecting the first housing and the second housing. The first housing and the second housing can be relatively unfolded to the open state or relatively folded to the closed state through the movement of the folding assembly, and the screen unfolds or folds with the housing device. The electronic device is an in-fold screen device.

[0111] The folding assembly has a main shaft, two support plates on both sides of the main shaft, and a plurality of moving parts. When the electronic device is in the open state, the ends of the main shaft, the two support plates, and the plurality of moving parts are spliced together, thereby providing a flat, continuous support environment with small or no holes, enabling the folding assembly to reliably support the bent portion of the screen, reducing the risk of the bent portion of the screen being dented under pressing or impact, and improving the reliability of the screen.

[0112] In addition, when the electronic device is in the open state, the main shaft and / or the plurality of moving parts can also provide structural support for the support plate, such that the pressing virtual position and deformation of the support plate are small, further improving the reliability of the screen.

[0113] Among them, the electronic device can be a foldable electronic product such as a mobile phone, a tablet computer, a laptop computer, a wearable device, etc. In the embodiments of the present application, the electronic device is taken as an example of a mobile phone for illustration.

[0114] Please refer to Figure 1 、 Figure 2 and Figure 3 , Figure 1 which is a schematic structural diagram of an electronic device 200 provided by an embodiment of the present application when in the open state, Figure 2 is Figure 1 a schematic structural diagram of the electronic device 200 shown in Figure 3 when in an intermediate state, Figure 1 and is a schematic structural diagram of the electronic device 200 shown in Figure 1 when in the closed state. In some embodiments, the electronic device 200 is a foldable device and has an open state and a closed state. Exemplarily, the electronic device 200 includes a housing device 1 and a screen 2, and the screen 2 is installed on the housing device 1. As shown in Figure 1 the housing device 1 can be unfolded to the open state; as shown in Figure 3 the housing device 1 can also be folded to the closed state; as shown in Figure 2As shown, the housing device 1 can also be unfolded or folded to an intermediate state, which can be any state between the open state and the closed state. The screen 2 is a bendable structure. The screen 2 moves with the housing device 1, and the housing device 1 can drive the screen 2 to unfold or fold, so that the electronic device 200 can be unfolded or folded to the open state, the closed state or the intermediate state. Among them, when the electronic device 200 is in the closed state, the screen 2 is located inside the housing device 1, and the electronic device 200 is an in-fold screen device.

[0115] In this embodiment, when the electronic device 200 is in the open state, the screen 2 is flattened, and the screen 2 can perform full-screen display, so that the electronic device 200 has a large display area to improve the user's viewing experience and operation experience. When the electronic device 200 is in the closed state, the planar size of the electronic device 200 is small, which is convenient for the user to carry and store.

[0116] In some embodiments, the electronic device 200 may further include a plurality of components (not shown in the figure), and the plurality of components are installed inside the housing device 1. The plurality of components may include, for example, a processor, an internal memory, an external memory interface, a universal serial bus (USB) interface, a charging management module, a power management module, a battery, an antenna, a communication module, a camera, an audio module, a speaker, a receiver, a microphone, a headphone interface, a sensor module, a button, a motor, an indicator, and a subscriber identification module (SIM) card interface, etc. Among them, the electronic device 200 may have more or fewer components than those described above, may combine two or more components, or may have different component configurations. The various components may be implemented in hardware, software, or a combination of hardware and software including one or more signal processing and / or application specific integrated circuits.

[0117] It can be understood that when the user holds the electronic device 200, the position where the earpiece module of the electronic device 200 is located can be defined as the upper side of the electronic device 200, the position where the microphone module of the electronic device 200 is located can be defined as the lower side of the electronic device 200, and the two sides of the electronic device 200 held by the user's left and right hands can be defined as the left and right sides of the electronic device 200. In some embodiments, the electronic device 200 can be folded in half left and right. In some other embodiments, the electronic device 200 can be folded in half up and down.

[0118] Please refer to Figures 1 to 5 , Figure 4 which Figure 1 is a partial exploded structural schematic diagram of the electronic device 200 shown, Figure 5 which Figure 4Partial exploded view of the housing device 1 shown

[0119] In some embodiments, the housing device 1 includes a first housing 11, a second housing 13, and a folding assembly 12. Among them, the folding assembly 12 can be connected between the first housing 11 and the second housing 13. The folding assembly 12 can move so that the first housing 11 and the second housing 13 can be relatively unfolded to the open state or relatively folded to the closed state, and can also be relatively unfolded or relatively folded to the intermediate state. It should be understood that when the electronic device 200 is in the open state, the screen 2, the housing device 1, and each component of the housing device 1 are correspondingly in the open state; when the electronic device 200 is in the closed state, the screen 2, the housing device 1, and each component of the housing device 1 are correspondingly in the closed state; when the electronic device 200 is in the intermediate state, the screen 2, the housing device 1, and each component of the housing device 1 are correspondingly in the intermediate state.

[0120] Among them, as Figure 1 shown, when the electronic device 200 is in the open state, the angle between the first housing 11 and the second housing 13 can be approximately 180°, the first housing 11 and the second housing 13 are flattened, and the screen 2 presents a flattened form. At this time, the first housing 11 can be spliced with the second housing 13. The splicing of the first housing 11 and the second housing 13 includes the case where they abut against each other and can also include the case where there is a small gap between them. In this embodiment, through the splicing of the first housing 11 and the second housing 13, the stopping of the unfolding action of the housing device 1 can be realized to prevent the housing device 1 from being over-folded when unfolding, thereby reducing the force on the screen 2 and improving the reliability of the screen 2 and the electronic device 200.

[0121] In some other embodiments, when the electronic device 200 is in the open state, the angle between the first housing 11 and the second housing 13 can also have a slight deviation from 180°, such as 165°, 177°, or 185°, etc. This situation is also considered that the first housing 11 and the second housing 13 are flattened. Among them, the angle between the first housing 11 and the second housing 13 is defined as the angle between the upper side of the first housing 11 and the upper side of the second housing 13.

[0122] As Figure 3As shown, when the electronic device 200 is in a closed state, the angle between the first housing 11 and the second housing 13 can be approximately 0°, and the first housing 11 and the second housing 13 are folded to a closed state, and the screen 2 presents a folded form. Exemplarily, when the first housing 11 and the second housing 13 are in a closed state, they can contact each other to achieve positioning. In some other embodiments, when the first housing 11 and the second housing 13 are in a closed state, they can also approach each other, and there is a small gap between them. This application does not make strict limitations on this. When there is a small gap between the first housing 11 and the second housing 13, some foreign objects (such as nails, paper clips, glass shards, etc.) outside the electronic device 200 will not enter between the first housing 11 and the second housing 13 through this gap, so as to avoid foreign objects from damaging the screen 2, thereby improving the reliability of the electronic device 200.

[0123] It can be understood that the first housing 11 and the second housing 13 are housing parts for installing and fixing other components of the electronic device 200, and have diverse structures. Only some structures of the first housing 11 and the second housing 13 are briefly described by way of example in the embodiments of this application, and are also simplified and schematically shown in the drawings. The embodiments of this application do not make strict limitations on the specific structures of the first housing 11 and the second housing 13.

[0124] In some embodiments, please refer to Figure 1 and Figure 4 , the screen 2 includes a first non-bending portion 21, a bending portion 22, and a second non-bending portion 23 arranged in sequence. The first non-bending portion 21 is fixedly connected to the first housing 11, the second non-bending portion 23 is fixedly connected to the second housing 13, and the bending portion 22 corresponds to the folding assembly 12. During the relative folding or relative unfolding of the first housing 11 and the second housing 13, the bending portion 22 deforms. During the relative folding or relative unfolding of the first housing 11 and the second housing 13, the first housing 11 drives the first non-bending portion 21 to move, the second housing 13 drives the second non-bending portion 23 to move, and the first non-bending portion 21 and the second non-bending portion 23 are relatively folded or unfolded.

[0125] In some embodiments, please refer to Figure 4 , the first housing 11 includes a support surface 111 for carrying the screen 2, and the second housing 13 includes a support surface 131 for carrying the screen 2. Exemplarily, the first non-bending portion 21 of the screen 2 can be fixedly connected to the support surface 111 of the first housing 11. For example, the first non-bending portion 21 can be adhesively bonded to the support surface 111 of the first housing 11 through an adhesive layer. The second non-bending portion 23 is fixedly connected to the support surface 131 of the second housing 13. For example, the second non-bending portion 23 can be adhesively bonded to the support surface 131 of the second housing 13 through an adhesive layer.

[0126] In this embodiment, since the first non-bending portion 21 is fixedly connected to the first housing 11 and the second non-bending portion 23 is fixedly connected to the second housing 13, when the first housing 11 and the second housing 13 are relatively folded or unfolded, the relative folding and unfolding actions between the first non-bending portion 21 and the second non-bending portion 23 can be accurately controlled, so that the deformation process and motion form of the screen 2 are controllable and the reliability is relatively high.

[0127] As Figure 1 shown, when the first housing 11 and the second housing 13 are relatively unfolded to the open state, the first non-bending portion 21, the bending portion 22 and the second non-bending portion 23 of the screen 2 are relatively flattened, and the screen 2 is in a flattened form. As Figure 2 shown, when the first housing 11 and the second housing 13 are in the intermediate state, an included angle is formed between the first non-bending portion 21 and the second non-bending portion 23 of the screen 2, and the bending portion 22 is partially bent, and the screen 2 is in a bent form. As Figure 3 shown, when the first housing 11 and the second housing 13 are relatively folded to the closed state, the screen 2 is located inside the folding device and is in a folded form. Among them, the relevant details of the folded form of the screen 2 can be referred to the following description.

[0128] Among them, the screen 2 may include a display module and a support plate. The display module is a flexible display screen, and the support plate is located below the display module and is used to support the display module and increase the structural stiffness of the display module. Among them, the stiffness of the part of the support plate located at the bending portion 22 is less than the stiffness of the parts located at the first non-bending portion 21 and the second non-bending portion 23, that is, the stiffness of the part of the support plate located at the bending portion 22 is small, and the stiffness of the parts of the support plate located at the first non-bending portion 21 and the second non-bending portion 23 is large, so that the screen 2 can not only take into account the structural stiffness to have a high flatness, but also the bending portion 22 of the screen 2 can be bent smoothly.

[0129] It can be understood that the support surface 111 of the first housing 11 and the support surface 131 of the second housing 13 may be continuous and complete surfaces, or may be surfaces including a plurality of concave regions or hollow regions. The embodiments of the present application do not make strict limitations on this.

[0130] Among them, the display module can integrate a display function and a touch sensing function. The display function of the screen 2 is used to display images, videos, etc., and the touch sensing function of the screen 2 is used to sense the touch actions of the user to achieve human-computer interaction. Among them, the display module can adopt a liquid crystal display (LCD), an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a flexible light-emitting diode (FLED) display screen, a MiniLED display screen, a MicroLED display screen, a Micro-OLED display screen, a quantum dot light-emitting diode (QLED) display screen, etc.

[0131] The implementation structure of the folding component 12 will be illustrated by way of example below.

[0132] Please refer to Figures 5 to 7 , Figure 6 is Figure 5 a partial exploded structural schematic diagram of the folding component 12 shown, Figure 7 is Figure 6 a partial exploded structural schematic diagram of the main shaft 31 and multiple connecting components (32, 33, 34) shown.

[0133] In some embodiments, the folding component 12 includes a main shaft 31, multiple connecting components (32, 33, 34), a first support plate 35, a second support plate 36, and a back cover 37.

[0134] Exemplarily, multiple connecting components (32, 33, 34) are all connected to the main shaft 31, and multiple connecting components (32, 33, 34) can all move and unfold or fold relative to the main shaft 31. Multiple connecting components (32, 33, 34) are also all connected between the first housing 11 and the second housing 13. When multiple connecting components (32, 33, 34) move relative to the main shaft 31, the first housing 11 and the second housing 13 move relative to the main shaft 31 to relatively unfold or relatively fold. Exemplarily, multiple connecting components (32, 33, 34) can include a top connecting component 32, a middle connecting component 33, and a bottom connecting component 34. Among them, the top connecting component 32, the middle connecting component 33, and the bottom connecting component 34 are arranged at intervals in the extending direction of the main shaft 31. Among them, the extending direction of the main shaft 31 refers to the direction from its top end to the bottom end.

[0135] In this embodiment, through the coordinated movement of the top connection component 32, the middle connection component 33, and the bottom connection component 34, the movement of the first housing 11 and the second housing 13 relative to the main shaft 31 during rotation is more stable and reliable.

[0136] Among them, the top connection component 32 and the bottom connection component 34 can be of the same structure, mirror-symmetric structure, centrosymmetric structure, or other different structures. In this embodiment of the present application, the case where the top connection component 32 and the bottom connection component 34 are mirror-symmetric structures is taken as an example for illustration, and the top connection component 32 will be mainly described hereinafter. The structure of the middle connection component 33 can be the same as, partially the same as, or completely different from the structure of the top connection component 32. This embodiment of the present application does not strictly limit this. In some other embodiments, the folding component 12 may not be provided with the middle connection component 33, or multiple middle connection components 33 may be provided. This embodiment of the present application does not strictly limit this.

[0137] Among them, the top connection component 32 may include a plurality of moving parts and a plurality of fixing parts. Among them, during the movement of the top connection component 32, the fixing parts are fixed relative to the mounting structural parts (such as the main shaft 31, the first housing 11, or the second housing 13) of the top connection component 32, and the moving parts can move relative to the fixing parts.

[0138] In some embodiments, the main shaft 31 includes a main support plate 41 and a plurality of covers (42, 43, 44). The plurality of covers (42, 43, 44) may include a top cover 42, a middle cover 43, and a bottom cover 44. The top cover 42, the middle cover 43, and the bottom cover 44 are all located below the main support plate 41; the top cover 42 is fixed to the top of the main support plate 41, and a top space for installing the top connection component 32 is formed between the top cover 42 and the main support plate 41; the middle cover 43 is fixed to the middle of the main support plate 41, and a middle space for installing the middle connection component 33 is formed between the middle cover 43 and the main support plate 41; the bottom cover 44 is fixed to the bottom of the main support plate 41, and a bottom space for installing the bottom connection component 34 is formed between the bottom cover 44 and the main support plate 41. In this embodiment, the number, structure, position, etc. of the plurality of covers (42, 43, 44) are correspondingly set with the plurality of connection components (32, 33, 34).

[0139] Exemplarily, the first support plate 35 is located on the side of the main support plate 41 of the main shaft 31 facing the first housing 11, and the second support plate 36 is located on the side of the main support plate 41 of the main shaft 31 facing the second housing 13. The first support plate 35 and the second support plate 36 are connected to the top connection assembly 32, the middle connection assembly 33, and the bottom connection assembly 34 to move along with the top connection assembly 32, the middle connection assembly 33, and the bottom connection assembly 34 during the movement of the folding assembly 12. The first support plate 35, the main support plate 41, and the second support plate 36 can jointly support the bent portion 22 of the screen 2 to improve the reliability of the bent portion 22 of the screen 2.

[0140] Exemplarily, a support surface 411 is formed on the upper side of the main support plate 41 facing away from the plurality of covers (42, 43, 44). The support surface 411 of the main support plate 41 is used to support the screen. The plurality of covers (42, 43, 44) are fixed to the side of the main support plate 41 facing away from the support surface 411 of the main support plate 41. A support surface 351 is formed on the upper side of the first support plate 35 facing away from the plurality of covers (42, 43, 44). A support surface 361 is formed on the upper side of the second support plate 36 facing away from the plurality of covers (42, 43, 44). When the housing device 1 is in the open state, the support surface 411 of the main support plate 41 is spliced with the support surface 351 of the first support plate 35 and the support surface 361 of the second support plate 36 to jointly provide a flat support environment for the bent portion 22 of the screen 2 to improve the reliability of the screen 2. It can be understood that in the embodiments of the present application, when two surfaces are spliced, it may include a scheme of connecting the two surfaces, or a scheme in which there is a small gap between the two surfaces but overall presents a splicing effect.

[0141] Exemplarily, the back cover 37 is located below the main shaft 31 and is fixedly connected to the main shaft 31. As Figure 1 shown, when the electronic device 200 is in the open state, the first housing 11 and the second housing 13 jointly cover the back cover 37, and the back cover 37 is hidden between the folding assembly 12, the first housing 11, and the second housing 13. As Figure 3 shown, when the electronic device 200 is in the closed state, the back cover 37 is exposed relative to the first housing 11 and the second housing 13. The back cover 37 forms a part of the appearance member of the electronic device 200. The back cover 37 can block the folding assembly 12 to improve the appearance consistency and aesthetics of the electronic device 200, and also facilitate the user to hold the electronic device 200.

[0142] Please refer to Figure 7 and Figure 8 , Figure 8 which Figure 6 is a partial structural schematic diagram of the main shaft 31 shown in

[0143] In some embodiments, the main support plate 41 may be provided with multiple sets of avoidance spaces, which are arranged at the top, middle, and bottom of the main support plate 41 respectively, corresponding to the top connection assembly 32, the middle connection assembly 33, and the bottom connection assembly 34 one by one, and are used to avoid the moving parts of multiple connection assemblies (32, 33, 34) during the movement of the folding assembly 12, so as to make the movement process of the folding assembly 12 smooth and highly reliable.

[0144] A single set of avoidance spaces may include a first avoidance hole 412, a second avoidance hole 413, a first avoidance notch 414, and a second avoidance notch 415. The first avoidance hole 412, the second avoidance hole 413, the first avoidance notch 414, and the second avoidance notch 415 all penetrate the main support plate 41 and form openings on the support surface 411 of the main support plate 41. The first avoidance hole 412 and the first avoidance notch 414 are arranged close to one side of the main support plate 41, and the second avoidance hole 413 and the second avoidance notch 415 are arranged close to the other side of the main support plate 41. Among them, the first avoidance notch 414 and the second avoidance notch 415 are located on both side edges of the main support plate 41, and the first avoidance hole 412 and the second avoidance hole 413 are located in the middle area of the main support plate 41.

[0145] Among them, the number of the first avoidance holes 412 may be one or more. For example, there are two in the illustrated embodiment. The second avoidance hole 413 may be symmetrically arranged with the first avoidance hole 412. The number of the first avoidance notches 414 may be one or more. For example, there is one in the illustrated embodiment. The second avoidance notch 415 may be symmetrically arranged with the first avoidance notch 414.

[0146] Exemplarily, the main support plate 41 further includes a plurality of first support blocks 416 and a plurality of second support blocks 417. The plurality of first support blocks 416 protrude from one side of the main support plate 41, and the plurality of second support blocks 417 protrude from the other side of the main support plate 41. That is, the plurality of first support blocks 416 and the plurality of second support blocks 417 protrude from both sides of the main support plate 41 respectively. Among them, the plurality of first support blocks 416 and the first avoidance notch 414 are located on the same side of the main support plate 41, and the second support block 417 and the second avoidance notch 415 are located on the same side of the main support plate 41.

[0147] Exemplarily, both the first support block 416 and the second support block 417 have support surfaces. The support surface 4161 of the first support block 416 and the support surface 4171 of the second support block 417 face the same direction as the support surface 411 of the main support plate 41. The support surface 4161 of the first support block 416 and the support surface 4171 of the second support block 417 sink relative to the support surface 411 of the main support plate 41. That is, the support surface 411 of the main support plate 41 protrudes relative to the support surface 4161 of the first support block 416 and the support surface 4171 of the second support block 417.

[0148] Among them, the supporting surface 4161 of the first supporting block 416 can be inclined relative to the supporting surface 411 of the main supporting plate 41, and the supporting surface 4171 of the second supporting block 417 can be inclined relative to the supporting surface 411 of the main supporting plate 41. For example, the mutually remote ends of the supporting surface 4161 of the first supporting block 416 and the supporting surface 4171 of the second supporting block 417 are deflected in a direction away from the supporting surface 411 of the main supporting plate 41.

[0149] Exemplarily, the main supporting plate 41 further includes a plurality of first receiving grooves 418 and a plurality of second receiving grooves 419. The plurality of first receiving grooves 418 are recessed on one side of the main supporting plate 41, and the plurality of second receiving grooves 419 are recessed on the other side of the main supporting plate 41. Among them, the plurality of first receiving grooves 418 and the first avoiding notch 414 are located on the same side of the main supporting plate 41, and the second receiving grooves 419 and the second avoiding notch 415 are located on the same side of the main supporting plate 41.

[0150] Exemplarily, as Figure 7 shown, the top cover 42 can be generally in a cover structure with a concave middle part and upturned sides. The top cover 42 is provided with a plurality of matching structures on the upper side facing the main supporting plate 41. The plurality of matching structures are used to cooperate with the main supporting plate 41 to form a top space for installing the top connection assembly 32. The plurality of matching structures can include structures such as grooves, openings, protrusions, and notches.

[0151] Exemplarily, as Figure 7 and Figure 8 shown, the top cover 42 can also be provided with a plurality of third supporting blocks 421 and a plurality of fourth supporting blocks 422. The plurality of third supporting blocks 421 protrude from one side of the top cover 42, and the plurality of fourth supporting blocks 422 protrude from the other side of the top cover 42. That is, the plurality of third supporting blocks 421 and the plurality of fourth supporting blocks 422 respectively protrude from both sides of the top cover 42.

[0152] The plurality of third supporting blocks 421 and the plurality of first supporting blocks 416 are located on the same side of the main shaft 31. The plurality of third supporting blocks 421 protrude in a direction close to the main supporting plate 41, at least partially extend into the first receiving groove 418 of the main supporting plate 41, and are arranged staggeredly with the first supporting block 416. The third supporting block 421 has a supporting surface. The supporting surface of the third supporting block 421 faces the same direction as the supporting surface 411 of the main supporting plate 41, and the supporting surface of the third supporting block 421 sinks relative to the supporting surface 411 of the main supporting plate 41.

[0153] A plurality of fourth support blocks 422 and a plurality of second support blocks 417 are located on the same side of the main shaft 31. The plurality of fourth support blocks 422 protrude towards the main support plate 41, at least partially extend into the second receiving groove 419 of the main support plate 41, and are arranged staggeredly with the second support blocks 417. The fourth support block 422 has a support surface. The support surface of the fourth support block 422 faces the same direction as the support surface 411 of the main support plate 41, and the support surface of the fourth support block 422 sinks relative to the support surface 411 of the main support plate 41.

[0154] Among them, the structures of the middle cover 43 and the bottom cover 44 can be set with reference to the top cover 42, and the embodiments of the present application will not elaborate on the middle cover 43 and the bottom cover 44.

[0155] In some embodiments, such as Figure 7 shown, the main shaft 31 may further include multiple sets of fasteners 311. The multiple sets of fasteners 311 correspond to the multiple covers (42, 43, 44) one by one, and are used to fix the multiple covers (42, 43, 44) to the main support plate 41. Among them, a single set of fasteners 311 may include one or more fasteners 311. Among them, fastening holes are provided on the multiple covers (42, 43, 44), and fastening holes may also be provided on the side of the main support plate 41 facing the multiple covers (42, 43, 44). The fasteners 311 pass through the fastening holes of the multiple covers (42, 43, 44) and extend into the fastening holes of the main support plate 41 to lock the cover and the main support plate 41. Among them, the fasteners 311 may be screws, bolts, rivets, etc.

[0156] Please refer to Figure 8 and Figure 9 , Figure 9 is Figure 8 a schematic cross-sectional structure diagram of the main shaft 31 shown in section along A-A. Among them, the cross-section along A-A passes through the main support plate 41 and the top cover 42.

[0157] Exemplarily, the main shaft has an activity space. For example, an activity space 41a is formed between the main support plate 41 and the top cover 42. The two ends of the activity space 41a are respectively communicated with the spaces on both sides of the main shaft 31. Among them, the activity space 41a is communicated with the first avoidance notch 414 and the second avoidance notch 415 of the main support plate 41 to be communicated with the space outside the main shaft 31 through the first avoidance notch 414 and the second avoidance notch 415. The activity space 41a is another part of the top space of the main shaft 31 and is used to install a part of the structure of the top connection assembly 32.

[0158] Please refer to Figure 8 and Figure 10 , Figure 10 is Figure 8Schematic cross-sectional structure diagram of the shown main shaft 31 cut along B-B. Among them, the cross-section cut along B-B passes through the main support plate 41 and the top cover 42.

[0159] Exemplarily, a first arc-shaped space 41b and a second arc-shaped space 41c are formed between the main support plate 41 and the top cover 42. Among them, the first arc-shaped space 41b is arranged on the side close to the main shaft 31. One end of the first arc-shaped space 41b communicates with the first avoidance hole 412, and the other end of the first arc-shaped space 41b communicates with the space outside the main shaft 31. Among them, the other end of the first arc-shaped space 41b can also communicate with the space outside the main shaft 31 through a partial fitting structure of the top cover 42. The second arc-shaped space 41c is arranged on the other side close to the main shaft 31. One end of the second arc-shaped space 41c communicates with the second avoidance hole 413, and the other end of the second arc-shaped space 41c communicates with the space outside the main shaft 31. Among them, the other end of the second arc-shaped space 41c can also communicate with the space outside the main shaft 31 through another partial fitting structure of the top cover 42. The first arc-shaped space 41b and the second arc-shaped space 41c are part of the top space of the main shaft 31 and are used to install another part of the top connection assembly 32.

[0160] Please refer to Figure 11 and Figure 12 , Figure 11 is Figure 7 the schematic structure diagram of the shown top connection assembly 32, Figure 12 is Figure 11 the partial exploded structure diagram of the shown top connection assembly 32.

[0161] In some embodiments, the top connection assembly 32 includes a first fixing frame 321, a second fixing frame 322, a first connecting arm 323, a second connecting arm 324, a first swing arm 325, a second swing arm 326 and a damping assembly 327. Among them, the top connection assembly 32 may further include a plurality of rotating shafts (3281, 3282, 3283, 3284), and the plurality of rotating shafts (3281, 3282, 3283, 3284) are used for inserting other components of the top connection assembly 32 to achieve connection. Among them, the top connection assembly 32 may further include a first stop member 3291 and a second stop member 3292.

[0162] Please refer to Figure 13 , Figure 13 is Figure 12 the schematic structure diagram of the shown first connecting arm 323.

[0163] In some embodiments, the first connecting arm 323 includes a first end 3231 and a second end 3232, and both the first end 3231 and the second end 3232 can be rotating ends. Exemplarily, the first end 3231 of the first connecting arm 323 can include a first arc-shaped arm 3233. Among them, the first end 3231 of the first connecting arm 323 can include one or more first arc-shaped arms 3233. For example, in the illustrated embodiment, the number of the first arc-shaped arms 3233 is two, and the two first arc-shaped arms 3233 are respectively located on both sides of the first end 3231 of the first connecting arm 323.

[0164] Among them, the first arc-shaped arm 3233 includes a first bump 3233a, and the first bump 3233a is located at the end of the first arc-shaped arm 3233 far from the second end 3232 of the first connecting arm 323. Among them, the first end 3231 of the first connecting arm 323 has an end face 3231a far from the second end 3232 of the first connecting arm 323, and the first bump 3233a protrudes relative to the end face 3231a of the first end 3231 of the first connecting arm 323.

[0165] Exemplarily, a rotating shaft hole 3234 can be provided at the second end 3232 of the first connecting arm 323.

[0166] Exemplarily, the first connecting arm 323 further includes a connecting section 3235 connected between the first end 3231 and the second end 3232. The setting of the connecting section 3235 makes the structural design of the first connecting arm 323 more flexible and can better meet the connection requirements and shape requirements. Among them, the connecting section 3235 of the first connecting arm 323 can include a first fitting block 3235a, and the first fitting block 3235a can be formed on the side surface of the connecting section 3235 and protrude outward. Among them, the number of the first fitting blocks 3235a can be one or more. For example, in the illustrated embodiment, the number of the first fitting blocks 3235a is two. Among them, the first fitting block 3235a includes a fitting surface 3235b facing the second end 3232 of the first connecting arm 323, and the fitting surface 3235b can be an arc surface. The setting of the first fitting block 3235a enables the first connecting arm 323 to better cooperate with certain structures and increases the stability of the connection relationship.

[0167] Among them, the first connecting arm 323 can be an integrally formed structural member to have higher structural strength. Exemplarily, the first connecting arm 323 can be formed by computer numerical control (CNC) milling process. In some other embodiments, the first connecting arm 323 can also be formed by metal injection molding process, and the embodiments of the present application do not make strict limitations on this.

[0168] Please refer to Figure 14 , Figure 14 isFigure 12 A schematic structural diagram of the second connecting arm 324 is shown.

[0169] In some embodiments, the second connecting arm 324 includes a first end 3241 and a second end 3242, and the first end 3241 and the second end 3242 may both be rotating ends. Exemplarily, the first end 3241 of the second connecting arm 324 may include a second arc-shaped arm 3243. The first end 3241 of the second connecting arm 324 may include one or more second arc-shaped arms 3243. For example, in the illustrated embodiment, the number of the second arc-shaped arms 3243 is two, and the two second arc-shaped arms 3243 are respectively located on both sides of the first end 3241 of the second connecting arm 324.

[0170] The second arc-shaped arm 3243 includes a second protrusion 3243a, and the second protrusion 3243a is located at the end of the second arc-shaped arm 3243 away from the second end 3242 of the second connecting arm 324. The first end 3241 of the second connecting arm 324 has an end surface 3241a away from the second end 3242 of the second connecting arm 324, and the second protrusion 3243a protrudes relative to the end surface 3241a of the first end 3241 of the second connecting arm 324.

[0171] Illustratively, the second end 3242 of the second connecting arm 324 may be provided with a rotating shaft hole 3244 .

[0172] Exemplarily, the second connecting arm 324 further includes a connecting section 3245 connected between the first end 3241 and the second end 3242. The provision of the connecting section 3245 makes the structural design of the second connecting arm 324 more flexible and can better meet the connection requirements and shape requirements.

[0173] The connecting section 3245 of the second connecting arm 324 may include a second matching block 3245a, which may be formed on the side of the connecting section 3245 and protrude outward. The number of the second matching blocks 3245a may be one or more. The second matching block 3245a includes a matching surface 3245b facing the second end 3242 of the second connecting arm 324, and the matching surface 3245b may be a curved surface. The provision of the second matching block 3245a enables the second connecting arm 324 to better match certain structures, thereby increasing the stability of the connection relationship.

[0174] The second connecting arm 324 can be an integrally formed structural member to have a higher structural strength. Exemplarily, the second connecting arm 324 can be formed by a computer numerical control (CNC) milling process. In some other embodiments, the second connecting arm 324 can also be formed by a metal injection molding process, which is not strictly limited in the present embodiment of the application.

[0175] In some embodiments, the shape and material of the first connecting arm 323 may be the same as those of the second connecting arm 324, so as to use the same material, save the types of materials of the folding assembly 12, and reduce the cost of the folding assembly 12. In some other embodiments, the shape and / or material of the first connecting arm 323 may also be different from those of the second connecting arm 324, and the embodiments of the present application are not strictly limited to this.

[0176] See also Figure 15 , Figure 15 yes Figure 13 A schematic structural diagram of the first swing arm 325 is shown.

[0177] In some embodiments, the first swing arm 325 includes a rotating end 3251 and a sliding end 3252. The rotating end 3251 of the first swing arm 325 is provided with a rotating shaft hole 3251a, and the rotating shaft hole 3251a passes through the rotating end 3251 of the first swing arm 325. The rotating end 3251 of the first swing arm 325 may further include a plurality of meshing teeth 3251b, a plurality of first protrusions 3251c and a plurality of second protrusions 3251d; the plurality of meshing teeth 3251b may be located in the middle of the rotating end 3251 of the first swing arm 325 and on the side of the sliding end 3252 facing away from the first swing arm 325; the plurality of first protrusions 3251c and the plurality of second protrusions 3251d are disposed opposite to each other on both sides of the rotating end 3251 of the first swing arm 325, the plurality of first protrusions 3251c are arranged in a ring shape and spaced apart from each other, the plurality of first protrusions 3251c are arranged around the rotating shaft hole 3251a of the rotating end 3251 of the first swing arm 325, the plurality of second protrusions 3251d are arranged in a ring shape and spaced apart from each other, and the plurality of second protrusions 3251d are arranged around the rotating shaft hole 3251a of the rotating end 3251 of the first swing arm 325.

[0178] Among them, the rotating end 3251 of the first swing arm 325 can also include a first splicing block 3251e, which can be located in the middle of the rotating end 3251 of the first swing arm 325 and adjacent to the multiple meshing teeth 3251b. The first splicing block 3251e is located on the side of the multiple meshing teeth 3251b close to the sliding end 3252 of the first swing arm 325.

[0179] Exemplarily, the sliding end 3252 of the first swing arm 325 is provided with a first shaft insertion hole 3252a and a first avoidance area 3252b, the first avoidance area 3252b penetrates the sliding end 3252 of the first swing arm 325, and the first avoidance area 3252b divides the first shaft insertion hole 3252a into two parts.

[0180] Exemplarily, the first swing arm 325 further includes a connecting section 3253 connected between the rotating end 3251 and the sliding end 3252. Exemplarily, the connecting section 3253 of the first swing arm 325 can be bent relative to the sliding end 3252 of the first swing arm 325, so that the structural design of the first swing arm 325 is more flexible, which can better meet the connection requirements and shape requirements of the top connecting component 32 and the folding component 12.

[0181] Exemplarily, the connecting section 3253 of the first swing arm 325 may include two first reinforcement blocks 3253a, which are respectively located on both sides of the connecting section 3253 of the first swing arm 325, and the two first reinforcement blocks 3253a can increase the structural strength of the first swing arm 325.

[0182] The first swing arm 325 may be an integrally formed structural member to have a high structural strength. For example, the first swing arm 325 may be formed by a metal injection molding process or by other processes, which is not strictly limited in the present embodiment.

[0183] See also Figure 16 , Figure 16 yes Figure 12 A schematic structural diagram of the second swing arm 326 is shown.

[0184] In some embodiments, the second swing arm 326 includes a rotating end 3261 and a sliding end 3262. The rotating end 3261 of the second swing arm 326 is provided with a rotating shaft hole 3261a, and the rotating shaft hole 3261a passes through the rotating end 3261 of the second swing arm 326. The rotating end 3261 of the second swing arm 326 may further include a plurality of meshing teeth 3261b, a plurality of first protrusions 3261c and a plurality of second protrusions 3261d; the plurality of meshing teeth 3261b may be located in the middle of the rotating end 3261 of the second swing arm 326, and on the side of the sliding end 3262 facing away from the second swing arm 326; the plurality of first protrusions 3261c and the plurality of second protrusions 3261d are disposed opposite to each other on both sides of the rotating end 3261 of the second swing arm 326, the plurality of first protrusions 3261c are arranged in a ring shape and spaced apart from each other, the plurality of first protrusions 3261c are arranged around the rotating shaft hole 3261a of the rotating end 3261 of the second swing arm 326, the plurality of second protrusions 3261d are arranged in a ring shape and spaced apart from each other, and the plurality of second protrusions 3261d are arranged around the rotating shaft hole 3261a of the rotating end 3261 of the second swing arm 326.

[0185] Among them, the rotating end 3261 of the second swing arm 326 can also include a second splicing block 3261e, which can be located in the middle of the rotating end 3261 of the second swing arm 326 and adjacent to the multiple meshing teeth 3261b. The second splicing block 3261e is located on the side of the multiple meshing teeth 3261b close to the sliding end 3262 of the second swing arm 326.

[0186] Exemplarily, the sliding end 3262 of the second swing arm 326 is provided with a second shaft insertion hole 3262a and a second avoidance area 3262b, the second avoidance area 3262b runs through the sliding end 3262 of the second swing arm 326, and the second avoidance area 3262b divides the second shaft insertion hole 3262a into two parts.

[0187] Exemplarily, the second swing arm 326 further includes a connecting section 3263 connected between the rotating end 3261 and the sliding end 3262. Exemplarily, the connecting section 3263 of the second swing arm 326 can be bent relative to the sliding end 3262 of the second swing arm 326, so that the structural design of the second swing arm 326 is more flexible, which can better meet the connection requirements and shape requirements of the top connecting component 32 and the folding component 12.

[0188] Exemplarily, the connecting section 3263 of the second swing arm 326 may include two second reinforcement blocks 3263a, which are respectively located on both sides of the connecting section 3263 of the second swing arm 326, and the two second reinforcement blocks 3263a can increase the structural strength of the second swing arm 326.

[0189] The second swing arm 326 may be an integrally formed structural member to have a high structural strength. For example, the second swing arm 326 may be formed by a metal injection molding process or by other processes, which is not strictly limited in the present embodiment.

[0190] In some embodiments, the shape and material of the first swing arm 325 can be the same as that of the second swing arm 326, so as to use the same material, save the types of materials of the folding assembly 12, and reduce the cost of the folding assembly 12. In some other embodiments, the shape and / or material of the first swing arm 325 can also be different from that of the second swing arm 326, and the embodiments of the present application are not strictly limited to this.

[0191] Please refer to Figure 17A and Figure 17B , Figure 17A yes Figure 12 The structural diagram of the damping assembly 327 is shown in FIG. Figure 17B yes Figure 17A A schematic diagram of the exploded structure of the damping assembly 327 is shown.

[0192] In some embodiments, the damping assembly 327 includes a first locking member 3271, a second locking member 3272, a plurality of synchronous gears 3273, a first fixing plate 3274, a second fixing plate 3275, an elastic member 3276, a first transfer shaft 3277, a second transfer shaft 3278, and a plurality of third transfer shafts 3279. In this embodiment, "two synchronous gears 3273 and two third transfer shafts 3279" are used as an example for illustration.

[0193] Exemplarily, the first positioning member 3271 includes a first convex block structure 3271a and a first through hole 3271b, the second positioning member 3272 includes a second convex block structure 3272a and a second through hole 3272b, and the second convex block structure 3272a is arranged face to face with the first convex block structure 3271a. A plurality of synchronous gears 3273 are located between the first positioning member 3271 and the second positioning member 3272, and the plurality of synchronous gears 3273 are meshed with each other. The synchronous gears 3273 are each provided with a rotating shaft hole 3273a. Each synchronous gear 3273 may include a plurality of meshing teeth 3273b, a plurality of first protrusions 3273c, and a plurality of second protrusions 3273d. The plurality of meshing teeth 3273b may be located in the middle of the synchronous gear 3273, and the plurality of meshing teeth 3273b of two adjacent synchronous gears 3273 are meshed with each other. The plurality of first protrusions 3273c and the plurality of second protrusions 3273d are disposed opposite to each other at two ends of the synchronous gear 3273. In some use states, the plurality of first protrusions 3273c of the synchronous gear 3273 cooperate with the first protrusion structure 3271a to form a snap-fit ​​structure; the plurality of second protrusions 3273d of the synchronous gear 3273 cooperate with the second protrusion structure 3272a to form a snap-fit ​​structure.

[0194] Exemplarily, the first fixing plate 3274 is located on the side of the first clamping member 3271 facing away from the second clamping member 3272. The first fixing plate 3274 includes a plurality of clamping grooves 3274a spaced apart from each other, and the clamping grooves 3274a extend to the side of the first fixing plate 3274, so that the adapter shaft can be clamped into the clamping grooves 3274a from the side of the first fixing plate 3274 to clamp the first fixing plate 3274. The first fixing plate 3274 can be substantially in the shape of a flat plate.

[0195] Exemplarily, the elastic member 3276 is located on the side of the second locking member 3272 facing away from the first locking member 3271. The elastic member 3276 includes a plurality of springs 3276a. The number of the springs 3276a is the same as the number of the first through holes 3271b. The number of the springs 3276a may be four. In some other embodiments, the elastic member 3276 may also be made of elastic materials such as elastic rubber, which is not strictly limited in the present application.

[0196] Exemplarily, the second fixing plate 3275 is located on the side of the elastic member 3276 facing away from the second locking member 3272. The second fixing plate 3275 can be a plate structure. The second fixing plate 3275 includes a plurality of third through holes 3275a, and the plurality of third through holes 3275a are arranged at intervals from each other. Exemplarily, the number, arrangement shape and arrangement spacing of the plurality of first through holes 3271b, the plurality of second through holes 3272b and the plurality of third through holes 3275a can be the same. The number of the third through holes 3275a can be four.

[0197] Exemplarily, a limiting flange 3277a is provided at one end of the first transfer shaft 3277, and a limiting slot 3277b is provided at the other end of the first transfer shaft 3277. The first transfer shaft 3277 is inserted into the second fixing plate 3275, one of the springs 3276a, the second clamping member 3272, the first clamping member 3271 and the first fixing plate 3274. The first transfer shaft 3277 passes through one of the third through holes 3275a of the second fixing plate 3275, the inner space of one of the springs 3276a, one of the second through holes 3272b of the second clamping member 3272, one of the first through holes 3271b of the first clamping member 3271 and one of the slots 3274a of the first fixing plate 3274. Furthermore, the limiting flange 3277a of the first transfer shaft 3277 is located on the side of the second fixing plate 3275 facing away from the second clamping member 3272 and abuts against the second fixing plate 3275, and the first fixing plate 3274 is clamped into the limiting clamping groove 3277b of the first transfer shaft 3277, so that the first transfer shaft 3277, the second fixing plate 3275, one of the springs 3276a, the second clamping member 3272, the first clamping member 3271 and the first fixing plate 3274 can maintain a relatively fixed position relationship, and the spring 3276a is in a compressed state. The first transfer shaft 3277 can also be fixedly connected to the first fixing plate 3274 by welding or bonding.

[0198] Exemplarily, a limiting flange 3278a is provided at one end of the second transfer shaft 3278, and a limiting slot 3278b is provided at the other end of the second transfer shaft 3278. The second transfer shaft 3278 is inserted into the second fixing plate 3275, another spring 3276a, the second clamping member 3272, the first clamping member 3271 and the first fixing plate 3274. The second transfer shaft 3278 passes through another third through hole 3275a of the second fixing plate 3275, the inner space of another spring 3276a, another second through hole 3272b of the second clamping member 3272, another first through hole 3271b of the first clamping member 3271 and another slot 3274a of the first fixing plate 3274. Furthermore, the limiting flange 3278a of the second transfer shaft 3278 is located on the side of the second fixing plate 3275 facing away from the second clamping member 3272 and abuts against the second fixing plate 3275, and the first fixing plate 3274 is clamped into the limiting clamping groove 3278b of the second transfer shaft 3278, so that the second transfer shaft 3278, the second fixing plate 3275, another spring 3276a, the second clamping member 3272, the first clamping member 3271 and the first fixing plate 3274 can maintain a relatively fixed position relationship, and the spring 3276a is in a compressed state. The second transfer shaft 3278 can also be fixedly connected to the first fixing plate 3274 by welding or bonding.

[0199] Exemplarily, a limiting flange 3279a is provided at one end of the third transfer shaft 3279, and a limiting slot 3279b is provided at the other end of the third transfer shaft 3279. The number of the third transfer shafts 3279 is the same as the number of the synchronous gears 3273, and the third transfer shafts 3279, the synchronous gears 3273, and some springs 3276a in the elastic member 3276 are arranged in a one-to-one correspondence. The third transfer shaft 3279 is plugged into the second fixing plate 3275, another spring 3276a, the second positioning member 3272, the synchronous gear 3273, the first positioning member 3271, and the first fixing plate 3274. Among them, the third transfer shaft 3279 passes through another third through hole 3275a of the second fixed plate 3275, the inner space of another spring 3276a, another second through hole 3272b of the second locking member 3272, the shaft hole 3273a of the synchronous gear 3273, another first through hole 3271b of the first locking member 3271 and another slot 3274a of the first fixed plate 3274. Furthermore, the limiting flange 3279a of the third transfer shaft 3279 is located on the side of the second fixing plate 3275 facing away from the second clamping member 3272 and abuts against the second fixing plate 3275, and the first fixing plate 3274 is clamped into the limiting clamping groove 3279b of the third transfer shaft 3279, so that the third transfer shaft 3279, the second fixing plate 3275, another spring 3276a, the second clamping member 3272, the first clamping member 3271 and the first fixing plate 3274 can maintain a relatively fixed position relationship, and the spring 3276a is in a compressed state. The third transfer shaft 3279 can also be fixedly connected to the first fixing plate 3274 by welding or bonding.

[0200] Please refer to Figure 15 , Figure 16 and Figure 18 , Figure 18 yes Figure 11 The schematic diagram of the structure of the part of the top connection assembly 32 is shown. Figure 18 The first swing arm 325, the second swing arm 326 and the damping assembly 327 are schematically shown.

[0201] In some embodiments, the rotating end 3251 of the first swing arm 325 and the rotating end 3261 of the second swing arm 326 are located between the first blocking member 3271 and the second blocking member 3272. The first transfer shaft 3277 also passes through the rotation shaft hole 3251a of the rotating end 3251 of the first swing arm 325 to be plugged into the rotating end 3251 of the first swing arm 325, and the second transfer shaft 3278 also passes through the rotation shaft hole 3261a of the rotating end 3261 of the second swing arm 326 to be plugged into the rotating end 3261 of the second swing arm 326.

[0202] In some use states, the first protrusions 3251c of the first swing arm 325 cooperate with the first protrusion structure 3271a of the first clamping member 3271 to form a clamping structure; the second protrusions 3251d of the first swing arm 325 cooperate with the second protrusion structure 3272a of the second clamping member 3272 to form a clamping structure. The first protrusions 3261c of the second swing arm 326 cooperate with the first protrusion structure 3271a of the first clamping member 3271 to form a clamping structure; the second protrusions 3261d of the second swing arm 326 cooperate with the second protrusion structure 3272a of the second clamping member 3272 to form a clamping structure.

[0203] Exemplarily, the rotating end 3251 of the first swing arm 325 is meshed with the rotating end 3261 of the second swing arm 326 through a plurality of synchronous gears 3273. Exemplarily, the plurality of synchronous gears 3273 may be arranged in a series, two adjacent synchronous gears 3273 are meshed with each other, and the two synchronous gears 3273 located at the ends are respectively meshed with the rotating end 3251 of the first swing arm 325 and the rotating end 3261 of the second swing arm 326. The plurality of meshing teeth 3251b of the rotating end 3251 of the first swing arm 325 are meshed with the plurality of meshing teeth 3273b of the adjacent synchronous gears 3273, and the plurality of meshing teeth 3261b of the rotating end 3261 of the second swing arm 326 are meshed with the plurality of meshing teeth 3273b of the adjacent synchronous gears 3273.

[0204] In this embodiment, the rotating end 3251 of the first swing arm 325, the rotating end 3261 of the second swing arm 326 and the synchronous gear 3273 are all clamped with the first clamping piece 3271 and the second clamping piece 3272 to form a clamping structure, so that the first swing arm 325 and the second swing arm 326 can stay at certain positions. In addition, since the relative position relationship of the components of the damping assembly 327 is stable, the elastic member 3276 is in a compressed state, and the elastic force generated by the elastic member 3276 drives the first clamping piece 3271 and the second clamping piece 3272 to cooperate and press the rotating end 3251 of the first swing arm 325, the synchronous gear 3273 and the rotating end 3261 of the second swing arm 326, so that the clamping structure between the rotating end 3251 of the first swing arm 325, the synchronous gear 3273 and the rotating end 3261 of the second swing arm 326 and the first clamping piece 3271 and the second clamping piece 3272 is stable.

[0205] Please refer to Figure 19 and Figure 20 , Figure 19 yes Figure 12 The schematic structural diagram of the first fixing frame 321 is shown in FIG. Figure 20 yes Figure 19 The structure diagram of the first fixing frame 321 at another angle is shown.

[0206] In some embodiments, the first fixing frame 321 has a first shaft hole 3211, a first receiving groove 3212 and a first matching groove 3213. The first receiving groove 3212 is used to install other structural parts. The first shaft hole 3211 and the first matching groove 3213 are connected to the first receiving groove 3212. The first matching groove 3213 has a matching wall surface 3213a arranged near the first shaft hole 3211, and the matching wall surface 3213a can be a curved surface.

[0207] The first fixing frame 321 may further include a first sliding groove 3214 and a first mounting groove 3215, wherein the first mounting groove 3215 is connected to the first sliding groove 3214. At this time, the structural member installed in the first mounting groove 3215 may partially extend into the first sliding groove 3214. The first fixing frame 321 may further include a first arcuate groove 3216, the number of the first arcuate groove 3216 may be one or more, and the first arcuate groove 3216 may be provided at the end of the first fixing frame 321.

[0208] See also Figure 21 and Figure 22 , Figure 21 yes Figure 12 The schematic structural diagram of the second fixing frame 322 is shown in FIG. Figure 22 yes Figure 12 The structure of the second fixing frame 322 is shown in another angle.

[0209] In some embodiments, the second fixing frame 322 has a second shaft hole 3221, a second receiving groove 3222 and a second matching groove 3223. The second receiving groove 3222 is used to install other structural members. The second shaft hole 3221 and the second matching groove 3223 are connected to the second receiving groove 3222. The second matching groove 3223 has a matching wall surface 3223a arranged near the second shaft hole 3221, and the matching wall surface 3223a can be a curved surface.

[0210] The second fixing frame 322 may further include a second sliding groove 3224 and a second mounting groove 3225, and the second mounting groove 3225 is connected to the second sliding groove 3224. At this time, the structural member installed in the second mounting groove may partially extend into the second sliding groove. The second fixing frame 322 may further include a second arc groove 3226, and the number of the second arc groove 3226 may be one or more, and the second arc groove 3226 may be provided at the end of the second fixing frame 322.

[0211] Please refer to Figure 23 and Figure 24 , Figure 23 yes Figure 11 The schematic diagram of the assembly structure of the top connecting component 32 and the top cover 42 of the main shaft 31 is shown. Figure 24 yes Figure 11A schematic diagram of the assembly structure of the top connecting component 32 and the main shaft 31 is shown.

[0212] In some embodiments, two ends of the first connecting arm 323 are respectively connected to the main shaft 31 and the first fixing frame 321, and two ends of the second connecting arm 324 are respectively connected to the main shaft 31 and the second fixing frame 322. Two ends of the first swing arm 325 are respectively connected to the main shaft 31 and the first fixing frame 321, and two ends of the second swing arm 326 are respectively connected to the main shaft 31 and the second fixing frame 322. The damping assembly 327 is installed in the main shaft 31 and connects the first swing arm 325 and the second swing arm 326.

[0213] Please refer to Figures 25 to 28 , Figure 25 yes Figure 24 The schematic diagram of the cross-sectional structure of the structure shown is taken along CC. Figure 26 yes Figure 24 The schematic diagram of the cross-sectional structure of the structure shown is taken along DD. Figure 27 yes Figure 25 The schematic diagram of the structure when the structure is in a closed state, Figure 28 yes Figure 26 The schematic diagram of the structure when the structure is in a closed state. The section cut along CC passes through the first fixing frame 321, the first connecting arm 323, the main shaft 31, the second connecting arm 324 and the second fixing frame 322. The section cut along DD passes through the first fixing frame 321, the first connecting arm 323, the main shaft 31, the second connecting arm 324 and the second fixing frame 322.

[0214] In some embodiments, the first end 3231 of the first connecting arm 323 is rotatably connected to the main shaft 31, and the second end 3232 of the first connecting arm 323 is rotatably connected to the first fixing frame 321. The first end 3241 of the second connecting arm 324 is rotatably connected to the main shaft 31, and the second end 3242 of the second connecting arm 324 is rotatably connected to the second fixing frame 322.

[0215] Exemplarily, the first arc-shaped arm 3233 of the first end 3231 of the first connecting arm 323 is installed in the first arc-shaped space 41b of the main shaft 31, so that the first end 3231 of the first connecting arm 323 is rotatably connected to the main shaft 31 through the connection mode of the virtual shaft. The rotating shaft 3281 passes through the rotating shaft hole 3234 of the second end 3232 of the first connecting arm 323, and passes through the first rotating shaft hole 3211 of the first fixing frame 321 to plug the second end 3232 of the first connecting arm 323 and the first fixing frame 321, so that the second end 3232 of the first connecting arm 323 is rotatably connected to the first fixing frame 321 through the connection mode of the physical shaft.

[0216] The second arc-shaped arm 3243 of the first end 3241 of the second connecting arm 324 is installed in the second arc-shaped space 41c of the main shaft 31, so that the first end 3241 of the second connecting arm 324 is rotatably connected to the main shaft 31 through the connection mode of the virtual axis. The rotating shaft 3282 passes through the rotating shaft hole 3244 of the second end 3242 of the second connecting arm 324 and the second rotating shaft hole 3221 of the second fixing frame 322 to plug the second end 3242 of the second connecting arm 324 and the second fixing frame 322, so that the second end 3242 of the second connecting arm 324 is rotatably connected to the second fixing frame 322 through the connection mode of the physical axis.

[0217] For example, Figure 25 As shown, when the folding assembly 12 is in the open state, the end of the first arc-shaped arm 3233 is at least partially located in the first avoidance hole 412, for example, the first protrusion 3233a of the first arc-shaped arm 3233 is at least partially located in the first avoidance hole 412 of the main support plate 41. At this time, the design of the first avoidance hole 412 enables the first arc-shaped arm 3233 to have a larger curvature, and the matching curvature of the first arc-shaped arm 3233 and the first arc-shaped space 41b of the main support plate 41 (that is, the curvature of the first arc-shaped arm 3233 extending into the first arc-shaped space 41b) is larger, and the relative movement of the two is more stable. In addition, it can also reduce the risk of the first arc-shaped arm 3233 detaching from the main support plate 41, making the connection between the two more reliable.

[0218] When the folding assembly 12 is in the open state, the end of the second arc-shaped arm 3243 is at least partially located in the second avoidance hole 413, for example, the second protrusion 3243a of the second arc-shaped arm 3243 is at least partially located in the second avoidance hole 413 of the main support plate 41. At this time, the design of the second avoidance hole 413 enables the second arc-shaped arm 3243 to have a larger curvature, and the matching curvature of the second arc-shaped arm 3243 and the second arc-shaped space 41c of the main support plate 41 is larger, and the relative movement of the two is more stable. In addition, the risk of the second arc-shaped arm 3243 being separated from the main support plate 41 can be reduced, making the connection between the two more reliable.

[0219] In this embodiment, when the folding component 12 is in the open state, since the first protrusion 3233a is at least partially located in the first avoidance hole 412, it can fill the first avoidance hole 412, and the second protrusion 3243a is at least partially located in the second avoidance hole 413, it can fill the second avoidance hole 413, so that the main support plate 41 can provide a relatively complete supporting environment for the bending portion 22 of the screen 2 to improve the reliability of the screen 2.

[0220] Among them, when the folding assembly 12 is in the open state, the first protrusion 3233a can occupy most of the space of the first avoidance hole 412. In some embodiments, the end face of the first protrusion 3233a can be flush with the support surface 411 of the main support plate 41 to achieve splicing, thereby providing a more complete and flat support environment. In other embodiments, the end face of the first protrusion 3233a can also be slightly concave relative to the support surface 411 of the main support plate 41 to take into account the connection requirements of the first arc-shaped arm 3233 and the support requirements of the screen 2. At this time, since the opening area of ​​the first avoidance hole 412 is small, and the degree of concavity of the end face of the first protrusion 3233a relative to the support surface 411 of the main support plate 41 is shallow, when the bending portion 22 of the screen 2 corresponding to the area of ​​the first avoidance hole 412 is pressed or collided, the risk of obvious dents or damage is small, and the reliability of the screen 2 is high.

[0221] When the folding assembly 12 is in the open state, the second protrusion 3243a can occupy most of the space of the second avoidance hole 413. In some embodiments, the end surface of the second protrusion 3243a can be flush with the support surface 411 of the main support plate 41 to achieve splicing, thereby providing a more complete and flat support environment. In other embodiments, the end surface of the second protrusion 3243a can also be slightly concave relative to the support surface 411 of the main support plate 41 to take into account the connection requirements of the second arc-shaped arm 3243 and the support requirements of the screen 2. At this time, since the opening area of ​​the second avoidance hole 413 is small, and the degree of concavity of the end surface of the second protrusion 3243a relative to the support surface 411 of the main support plate 41 is shallow, when the bending portion 22 of the screen 2 corresponding to the second avoidance hole 413 is pressed or collided, the risk of obvious dents or damage is small, and the reliability of the screen 2 is high.

[0222] In some other embodiments, structural design or size design may be used to ensure that the first arc arm 3233 and the second arc arm 3243 have sufficient matching arc with the main support plate 41. In this case, the first avoidance hole 412 and the second avoidance hole 413 may not be provided on the main support plate 41. The integrity of the main support plate 41 is relatively high, and the bending portion 22 of the screen 2 can be better supported.

[0223] It is understood that in some other embodiments, the first end 3231 of the first connecting arm 323 can be rotatably connected to the main shaft 31 by means of a physical shaft connection; and / or, the first end 3241 of the second connecting arm 324 can be rotatably connected to the main shaft 31 by means of a physical shaft connection, and the present application does not strictly limit this. In some other embodiments, the second end 3232 of the first connecting arm 323 can be rotatably connected to the first fixing frame 321 by means of a virtual shaft connection; and / or, the second end 3242 of the second connecting arm 324 can be rotatably connected to the second fixing frame 322 by means of a virtual shaft connection, and the present application does not strictly limit this.

[0224] See also Figure 29 , Figure 29 yes Figure 24 The structure shown is a schematic diagram of the cross-section structure taken along EE.

[0225] In some embodiments, the first matching block 3235a of the first connecting arm 323 can be installed in the first matching groove 3213 of the first fixing frame 321 to match with the first matching groove 3213 of the first fixing frame 321. The matching surface 3235b of the first matching block 3235a contacts the matching wall surface 3213a of the first matching groove 3213. The second matching block 3245a of the second connecting arm 324 can be installed in the second matching groove 3223 of the second fixing frame 322 to match with the second matching groove 3223 of the second fixing frame 322. The matching surface 3245b of the second matching block 3245a contacts the matching wall surface 3223a of the second matching groove 3223.

[0226] In this embodiment, the contact structure between the mating surface and the mating wall surface increases the contact area between the mating block and the fixing frame, thereby increasing the connection stability between the connecting arm and the fixing frame and improving the reliability of the folding assembly 12.

[0227] Exemplarily, the mating surface 3235b of the first mating block 3235a and / or the mating wall surface 3213a of the first mating groove 3213 may be an arcuate surface, and the mating surface 3235b of the first mating block 3235a forms an arcuate overlap with the mating wall surface 3213a of the first mating groove 3213. The mating surface 3245b of the second mating block 3245a and / or the mating wall surface 3223a of the second mating groove 3223 may be an arcuate surface, and the mating surface 3245b of the second mating block 3245a forms an arcuate overlap with the mating wall surface 3223a of the second mating groove 3223.

[0228] In this embodiment, the arc-surface overlap structure increases the connection stability between the connecting arm and the fixing frame during the movement of the folding assembly 12 , making the relative movement of the connecting arm and the fixing frame smoother, thereby improving the reliability of the folding assembly 12 .

[0229] Please refer to Figure 30 and Figure 31 , Figure 30 yes Figure 24 The schematic diagram of the cross-section structure of the structure shown is taken along FF. Figure 31 yes Figure 30 A schematic diagram of the structure when the structure is in a closed state.

[0230] In some embodiments, the rotating end 3251 of the first swing arm 325 is rotatably connected to the main shaft 31, and the sliding end 3252 of the first swing arm 325 is slidably connected to the first fixed frame 321; the rotating end 3261 of the second swing arm 326 is rotatably connected to the main shaft 31, and the sliding end 3262 of the second swing arm 326 is slidably connected to the second fixed frame 322. Exemplarily, the sliding end 3252 of the first swing arm 325 is slidably mounted on the first sliding groove 3214 of the first fixed frame 321 to be slidably connected to the first fixed frame 321. The rotating end 3251 of the first swing arm 325 is mounted on the main shaft 31 and is rotatably connected to the main shaft 31 through the first adapter shaft 3277. The sliding end 3262 of the second swing arm 326 is slidably mounted on the second sliding groove 3224 of the second fixed frame 322 to be slidably connected to the second fixed frame 322. The rotating end 3261 of the second swing arm 326 is mounted on the main shaft 31 and is rotatably connected to the main shaft 31 via the second adapter shaft 3278 .

[0231] In the present application, the two ends of the first connecting arm 323 of the top connecting assembly 32 are respectively rotatably connected to the main shaft 31 and the first fixed frame 321 to form a connecting rod structure, the rotating end 3251 of the first swing arm 325 is rotatably connected to the main shaft 31, and the sliding end is slidably connected to the first fixed frame 321 to form a connecting rod slider structure; the two ends of the second connecting arm 324 are respectively rotatably connected to the main shaft 31 and the second fixed frame 322 to form a connecting rod structure, the rotating end 3261 of the second swing arm 326 is rotatably connected to the main shaft 31, and the sliding end is slidably connected to the second fixed frame 322 to form a connecting rod slider structure.

[0232] The first fixing frame 321 is used to connect the first shell 11, and the second fixing frame 322 is used to connect the second shell 13. Therefore, the top connecting component 32 of the folding component 12 realizes the connection between the first shell 11 and the second shell 13 and the main shaft 31 through the connecting rod structure and the connecting rod slider structure. The number of components is small, the matching relationship and matching position are simple, and the components are easy to manufacture and assemble, which is conducive to mass production to reduce the cost of the shell device 1. In addition, since the main shaft 31 is linked to the first fixing frame 321 through the first connecting arm 323 and the first swing arm 325, and is linked to the second fixing frame 322 through the second connecting arm 324 and the second swing arm 326, the movement trajectory of the folding component 12 is accurate, and the folding component 12 has better mechanism tensile resistance and mechanism extrusion resistance.

[0233] Among them,Figure 30 As shown, in the open state, the rotating end 3251 of the first swing arm 325 rotates into the main shaft 31, the rotating end 3261 of the second swing arm 326 rotates into the main shaft 31, the sliding end 3252 of the first swing arm 325 slides into the first fixing bracket 321, the sliding end 3262 of the second swing arm 326 slides into the second fixing bracket 322, and the distances between the first fixing bracket 321 and the second fixing bracket 322 and the main shaft 31 are relatively small.

[0234] As Figure 31 shown, in the closed state, the rotating end 3251 of the first swing arm 325 partially rotates out of the main shaft 31, the rotating end 3261 of the second swing arm 326 partially rotates out of the main shaft 31, the sliding end 3252 of the first swing arm 325 partially slides out of the first fixing bracket 321, the sliding end 3262 of the second swing arm 326 partially slides out of the second fixing bracket 322, and the distances between the first fixing bracket 321 and the second fixing bracket 322 and the main shaft 31 are relatively large.

[0235] Therefore, the folding assembly 12 can, in the open state, pull the first housing 11 and the second housing 13 closer respectively through the first fixing bracket 321 and the second fixing bracket 322, so that the first housing 11 and the second housing 13 are close to the main shaft 31; in the closed state, push the first housing 11 and the second housing 13 away respectively through the first fixing bracket 321 and the second fixing bracket 322, so that the first housing 11 and the second housing 13 are away from the main shaft 31, enabling the structure of the folding assembly 12 to better adapt to the deformation structure of the screen 2, reducing the risk of pulling or squeezing the screen 2, and improving the reliability of the screen 2 and the electronic device 200.

[0236] In addition, as Figure 30 and Figure 31 shown, since the damping assembly 327 is connected between the first swing arm 325 and the second swing arm 326, the damping assembly 327 can provide a damping force and a driving force when the first swing arm 325 and the second swing arm 326 move. The first swing arm 325 can be connected to the first housing 11 through the first fixing bracket 321, and the first swing arm 325 moves with the first housing 11. The second swing arm 326 can be connected to the second housing 13 through the second fixing bracket 322, and the second swing arm 326 moves with the second housing 13. Therefore, during the relative unfolding or folding of the first housing 11 and the second housing 13, the damping assembly 327 can provide a damping force, enabling the user to sense resistance and thrust when unfolding or folding the electronic device 200, thereby obtaining a better tactile experience of opening and closing, and improving the mechanical operation experience of the electronic device 200. In addition, the damping assembly 327 can also make the first swing arm 325 and the second swing arm 326 stay at certain positions, so that the first housing 11 and the second housing 13 can stay at certain positions, and thus can better maintain the open state or the closed state to improve the user experience.

[0237] In addition, the rotating end 3251 of the first swing arm 325 meshes with the rotating end 3261 of the second swing arm 326 through a plurality of synchronous gears 3273, so that the rotation angles of the rotating end 3251 of the first swing arm 325 and the rotating end 3261 of the second swing arm 326 are the same in magnitude and opposite in direction, enabling the rotational movements of the first swing arm 325 and the second swing arm 326 relative to the main shaft 31 to be synchronized, that is, to approach or move away from each other synchronously, and the rotational movements of the first housing 11 and the second housing 13 relative to the main shaft 31 to be synchronized, improving the user's experience of operating the mechanism.

[0238] It can be understood that the number, size, etc. of the synchronous gears 3273 can be designed according to the specific form, size, etc. of the product, and the present application does not strictly limit this. Among them, the more the number of synchronous gears 3273 and the smaller the size of the synchronous gears 3273, the more space can be released. The fewer the number of synchronous gears 3273 and the larger the size of the synchronous gears 3273, the smaller the transmission cumulative error of the synchronous gears 3273, which is beneficial to improving the movement accuracy.

[0239] It can be understood that the damping component 327 of the present application can have various implementation structures. For example, in some other embodiments, the damping component 327 can indirectly limit the positions of the first swing arm 325 and the second swing arm 326 by limiting the position of the synchronous gear 3273. For example, a clamping structure is formed between the first clamping member 3271 and the second clamping member 3272 and the synchronous gear 3273, and there is no clamping structure between the rotating end 3251 of the first swing arm 325 and the rotating end 3261 of the second swing arm 326 and the first clamping member 3271 and the second clamping member 3272. In some other embodiments, the damping component 327 may not be provided with the second clamping member 3272, and through the clamping structure between the first clamping member 3271 and the synchronous gear 3273, the first swing arm 325 and the second swing arm 326 can stay at certain positions. In some other embodiments, the damping component 327 may not be provided with a fixing plate, and both ends of the elastic member 3276 can respectively abut against the first clamping member 3271 and the wall surface of the first installation space, and the elastic member 3276 is compressed between the first clamping member 3271 and the main shaft 31. In some other embodiments, the damping component 327 may not be provided with the synchronous gear 3273 and the third transfer shaft 3279, and the rotating end 3251 of the first swing arm 325 directly meshes with the rotating end 3261 of the second swing arm 326. The above embodiments are exemplary structures of the damping component 327, and the damping component 327 can also have other implementation structures, and the present application does not strictly limit this.

[0240] In some other embodiments, a damping component 327 connecting the rotating ends 3251 of the first swing arm 325 and the rotating ends 3261 of the second swing arm 326 may not be provided. The rotating end 3251 of the first swing arm 325 may be rotatably connected to the main shaft 31 through a rotating shaft. The rotating shaft may be a part of the rotating end 3251 of the first swing arm 325 or an independent structural member inserted into the rotating end 3251 of the first swing arm 325. The rotating end 3261 of the second swing arm 326 may also be rotatably connected to the main shaft 31 through a rotating shaft. The rotating shaft may be a part of the rotating end 3261 of the second swing arm 326 or an independent structural member inserted into the rotating end 3261 of the second swing arm 326.

[0241] Please refer to again Figure 12 、 Figure 20 、 Figure 22 and Figure 30 , in some embodiments, the folding assembly 12 may be provided with a damping structure in the first fixing bracket 321 for applying a damping force to the sliding end 3252 of the first swing arm 325, and a damping structure in the second fixing bracket 322 for applying a damping force to the sliding end 3262 of the second swing arm 326. Exemplarily, the first stop member 3291 is installed in the first installation groove 3215, and the second stop member 3292 is installed in the second installation groove. When the folding assembly 12 is in the open state, the first stop member 3291 can abut against the sliding end 3252 of the first swing arm 325, and the second stop member 3292 abuts against the sliding end 3262 of the second swing arm 326. By the limitation of the first stop member 3291 on the first swing arm 325 and the limitation of the second stop member 3292 on the second swing arm 326, the housing device 1 can maintain the open state when not subjected to a large external force, so as to improve the user experience. In addition, the first stop member 3291 and the second stop member 3292 can also provide a limiting resistance during the process of the electronic device 200 being unfolded to enter the open state and folded to release the open state, so that the user can experience a better mechanical operation feeling.

[0242] In some embodiments, as Figure 30 and Figure 31 shown, during the movement of the folding assembly 12, the first swing arm 325 rotates relative to the main shaft 31. The first avoidance notch 414 of the main support plate 41 is used to avoid the first swing arm 325, so that there is no interference between the first swing arm 325 and the main support plate 41, ensuring the smoothness and reliability of the mechanism movement. The second swing arm 326 rotates relative to the main shaft 31. The second avoidance notch 415 of the main support plate 41 is used to avoid the second swing arm 326, so that there is no interference between the second swing arm 326 and the main support plate 41, ensuring the smoothness and reliability of the mechanism movement.

[0243] When the folding assembly 12 is in the open state, at least a part of the first splicing block 3251e of the first swing arm 325 is located in the first avoidance notch 414 of the main support plate 41, and at least a part of the second splicing block 3261e of the second swing arm 326 is located in the second avoidance notch 415 of the main support plate 41. As Figure 31 shown, when the folding assembly 12 is in the closed state, the first splicing block 3251e of the first swing arm 325 turns into the activity space 41a of the main shaft 31, and the second splicing block 3261e of the second swing arm 326 turns into the activity space 41a of the main shaft 31.

[0244] In this embodiment, when the folding assembly 12 is in the open state, since at least a part of the first splicing block 3251e is located in the first avoidance notch 414, the first avoidance notch 414 can be filled. At least a part of the second splicing block 3261e is located in the second avoidance notch 415, and the second avoidance notch 415 can be filled. The main support plate 41, the first splicing block 3251e and the second splicing block 3261e can be used to jointly support the bent portion 22 of the screen 2. Thus, the main support plate 41 provides a relatively complete support environment for the bent portion 22 of the screen 2 to improve the reliability of the screen 2.

[0245] Exemplarily, when the folding assembly 12 is in the open state, the first splicing block 3251e can occupy most of the space of the first avoidance notch 414. In some embodiments, the end face of the first splicing block 3251e can be flush with the support surface 411 of the main support plate 41 to achieve splicing, so as to provide a more complete and flat support environment. In other embodiments, the end face of the first splicing block 3251e can also be slightly concave relative to the support surface 411 of the main support plate 41 to balance the connection requirements of the first connecting arm 323 and the support requirements of the screen 2. At this time, by controlling the concave degree of the end face of the first splicing block 3251e relative to the support surface 411 of the main support plate 41 to be shallow enough, when the bent portion 22 of the screen 2 corresponding to the first avoidance notch 414 is pressed or impacted, the risk of obvious depression or damage is small, and the reliability of the screen 2 is high. In other embodiments, the end face of the first splicing block 3251e can be flush with the support surface 411 of the main support plate 41, but there is a certain gap between the two, which does not constitute splicing, but this structure can still provide a good support environment for the screen 2.

[0246] The second splicing block 3261e can occupy most of the space of the second avoidance notch 415. In some embodiments, the end face of the second splicing block 3261e can be flush with the support surface 411 of the main support plate 41 to achieve splicing, thereby providing a more complete and flat support environment. In other embodiments, the end face of the second splicing block 3261e can also be slightly concave relative to the support surface 411 of the main support plate 41 to take into account the connection requirements of the second connecting arm 324 and the support requirements of the screen 2. At this time, by controlling the concave degree of the end face of the second splicing block 3261e relative to the support surface 411 of the main support plate 41 to be shallow enough, when the bending portion 22 of the screen 2 corresponding to the second avoidance notch 415 is pressed or impacted, the risk of obvious depression or damage is small, and the reliability of the screen 2 is high. In other embodiments, the end face of the second splicing block 3261e can be flush with the support surface 411 of the main support plate 41, but there is a certain gap between the two, which does not constitute splicing, but this structure can still provide a good support environment for the screen 2.

[0247] For example, when the folding assembly 12 is in the open state, the end face of the first splicing block 3251e, the end face of the second splicing block 3261e, and the support surface 411 of the main support plate 41 are flush, and the three are located in the same plane, jointly supporting the bending portion 22 of the screen 2, providing a relatively complete and flat support environment for the bending portion 22 of the screen 2 to improve the reliability of the screen 2.

[0248] Among them, the end face of the first splicing block 3251e, the end face of the second splicing block 3261e, and the support surface of the main support plate can be spliced to improve the integrity of the support environment. In other embodiments, a certain gap can also be formed between at least two of the end face of the first splicing block 3251e, the end face of the second splicing block 3261e, and the support surface of the main support plate, which does not constitute splicing, and the embodiments of the present application do not make strict limitations on this.

[0249] In addition, when the folding assembly 12 is in the closed state, the first splicing block 3251e and the second splicing block 3261e can also be transferred into the activity space 41a of the main shaft 31, without affecting the accommodation space of the folding assembly 12 for accommodating the screen 2, improving the reliability of the folding assembly 12. In addition, when the folding assembly 12 is in the closed state, the connecting section 3253 of the first swing arm 325 and the connecting section 3263 of the second swing arm 326 can approach each other through the first avoidance notch 414 and the second avoidance notch 415, and the distance between the two is small, so that the folding assembly 12 as a whole forms an accommodation space similar to a water droplet shape.

[0250] Please refer to Figure 32 , Figure 32 which Figure 6 is a schematic structural diagram of the first support plate 35 and the second support plate 36 shown in another angle.

[0251] In some embodiments, the first support plate 35 includes a first plate body 352, a first rotating block 353 and a first guide block 354. The first plate body 352 includes a support surface and a fixed surface 352a disposed opposite to the support surface, and the support surface of the first plate body 352 is the support surface 351 of the first support plate 35. The first rotating block 353 and the first guide block 354 are fixed to the fixed surface 352a of the first plate body 352. The first support plate 35 can be an integrally formed structural member, or it can be assembled from multiple parts to form an integrated structure. The first rotating block 353 can include an arc-shaped arm 3531, and the first guide block 354 can form a first guide slot 3541.

[0252] The second support plate 36 includes a second plate body 362, a second rotating block 363 and a second guide block 364. The second plate body 362 includes a support surface and a fixed surface 362a disposed opposite to the support surface, and the support surface of the second plate body 362 is the support surface 361 of the second support plate 36. The second rotating block 363 and the second guide block 364 are fixed to the fixed surface 362a of the second plate body 362. The second support plate 36 can be an integrally formed structural member, or can be assembled from multiple components to form an integrated structure. The second rotating block 363 can include an arc-shaped arm 3631, and the second guide block 364 can form a second guide slot 3641.

[0253] It should be understood that the first rotating block 353 and the second rotating block 363 are mainly used to provide a rotating connection structure. The first rotating block 353 and the second rotating block 363 may also have other implementation structures. The structures of the two may be the same or different, and this application does not strictly limit this. The first guide block 354 and the second guide block 364 are mainly used to provide a guide slot to guide the movement direction of other structural parts. The first guide block 354 and the second guide block 364 may also have other implementation structures, and this application does not strictly limit this.

[0254] It can be understood that one or more first rotating blocks 353 and a first guide block 354 of the first support plate 35 can form a set of connection structures, and the first support plate 35 can include three sets of connection structures, which are respectively used to correspond to the top connection component 32, the middle connection component 33 and the bottom connection component 34, and are also used to correspond to the connection structures of the top, middle and bottom of the main shaft 31. Among them, the three sets of connection structures of the first support plate 35 can be designed with reference to each other, and will not be repeated here. Similarly, one or more second rotating blocks 363 and a second guide block 364 of the second support plate 36 can form a set of connection structures, and the second support plate 36 can include three sets of connection structures, which are respectively used to correspond to the top connection component 32, the middle connection component 33 and the bottom connection component 34, and are also used to correspond to the connection structures of the top, middle and bottom of the main shaft 31. Among them, the three sets of connection structures of the second support plate 36 can be designed with reference to each other, and will not be repeated here.

[0255] In some embodiments, the first plate 352 may include one or more first supplementary blocks 3514, and the first supplementary blocks 3514 are protruding from one side of the first plate 352. The second plate 362 may include one or more second supplementary blocks 3614, and the second supplementary blocks 3614 are protruding from one side of the second plate 362. The second supplementary blocks 3614 and the first supplementary blocks 3514 may be arranged opposite to each other.

[0256] Please refer to Figure 33 and Figure 34 , Figure 33 yes Figure 5 The cross-sectional structure diagram of the folding assembly 12 is shown along the GG section. Figure 34 yes Figure 33 The structure shown is a schematic diagram of the structure in a closed state. The section cut along GG passes through the first fixed frame 321, the first rotating block 353 of the first support plate 35, the main shaft 31, the second rotating block 363 of the second support plate 36 and the second fixed frame 322.

[0257] In some embodiments, the first support plate 35 is rotatably connected to the first fixed frame 321, and the second support plate 36 is rotatably connected to the second fixed frame 322. Exemplarily, the arc-shaped arm 3531 of the first rotating block 353 of the first support plate 35 is installed in the first arc-shaped groove 3216 of the first fixed frame 321, and the first rotating block 353 is rotatably connected to the first fixed frame 321 in a virtual axis connection manner, so that the first support plate 35 is rotatably connected to the first fixed frame 321. The arc-shaped arm 3631 of the second rotating block 363 of the second support plate 36 is installed in the second arc-shaped groove 3226 of the second fixed frame 322, and the second rotating block 363 is rotatably connected to the second fixed frame 322 in a virtual axis connection manner, so that the second support plate 36 is rotatably connected to the second fixed frame 322.

[0258] In some embodiments, when the first support plate 35 includes a plurality of first rotating blocks 353, the first fixed frame 321 is provided with a plurality of first arc-shaped grooves 3216, and the plurality of first rotating blocks 353 are installed in the plurality of first arc-shaped grooves 3216 in a one-to-one correspondence to form a plurality of virtual axis rotation connection structures, so that the rotation connection between the first support plate 35 and the first fixed frame 321 is more stable and reliable. Similarly, when the second support plate 36 includes a plurality of second rotating blocks 363, the second fixed frame 322 is provided with a plurality of second arc-shaped grooves, and the plurality of second rotating blocks 363 are installed in the plurality of second arc-shaped grooves in a one-to-one correspondence to form a plurality of virtual axis rotation connection structures, so that the rotation connection between the second support plate 36 and the second fixed frame 322 is more stable and reliable.

[0259] It is understandable that the first support plate 35 can also be rotatably connected to the first fixing frame 321 through a physical axis connection, and the second support plate 36 can also be rotatably connected to the second fixing frame 322 through a physical axis connection, and the present application does not impose strict limitations on this.

[0260] Please refer to Figure 35 and Figure 36 , Figure 35 yes Figure 5 The cross-sectional structure diagram of the folding assembly 12 is shown along the HH section. Figure 36 yes Figure 35 The cross section taken along HH passes through the first fixing frame 321 , the first swing arm 325 , the first guide block 354 of the first support plate 35 , the main shaft 31 , the second guide block 364 of the second support plate 36 , the second swing arm 326 and the second fixing frame 322 .

[0261] In some embodiments, the first support plate 35 is slidably connected to the sliding end 3252 of the first swing arm 325, and the second support plate 36 is slidably connected to the sliding end 3262 of the second swing arm 326. Exemplarily, the first guide block 354 of the first support plate 35 can be installed in the first avoidance area 3252b of the sliding end 3252 of the first swing arm 325, and the rotating shaft 3283 inserted in the sliding end 3252 of the first swing arm 325 is installed in the guide slot 3541 of the first guide block 354, and the first guide block 354 can slide relative to the sliding end 3252 of the first swing arm 325 through the first avoidance area 3252b, and the rotating shaft 3283 can slide in the guide slot 3541 of the first guide block 354, so that the first support plate 35 is slidably connected to the sliding end 3252 of the first swing arm 325.

[0262] The second guide block 364 of the second support plate 36 can be installed in the second avoidance area 3262b of the sliding end 3262 of the second swing arm 326, and the rotating shaft 3284 inserted into the sliding end 3262 of the second swing arm 326 is installed in the guide slot 3641 of the second guide block 364. The second guide block 364 can slide relative to the sliding end 3262 of the second swing arm 326 through the second avoidance area 3262b, and the rotating shaft 3284 can slide in the guide slot 3641 of the second guide block 364, so that the second support plate 36 is slidably connected to the sliding end 3262 of the second swing arm 326.

[0263] In this embodiment, the first support plate 35 is slidably connected to the sliding end 3252 of the first swing arm 325 and is rotatably connected to the first fixing frame 321. The sliding end 3252 of the first swing arm 325 and the first fixing frame 321 jointly define the motion track of the first support plate 35. The second support plate 36 is slidably connected to the sliding end 3262 of the second swing arm 326 and is rotatably connected to the second fixing frame 322. The sliding end 3262 of the second swing arm 326 and the second fixing frame 322 jointly define the motion track of the second support plate 36. Therefore, the first support plate 35 and the second support plate 36 can move with the connecting assembly, and the motion track is accurate, so that the reliability of the folding assembly 12 is higher.

[0264] Among them, Figure 34 and Figure 36 As shown, in the closed state, the first support plate 35, the main shaft 31 and the second support plate 36 of the folding assembly 12 together enclose a water drop-shaped receiving space for accommodating the screen 2, so that the screen 2 can be accommodated inside the folding assembly 12, and is not easily damaged and has high reliability. In addition, at some positions of the folding assembly 12, the moving parts of the multiple connecting components (32, 33, 34) of the folding assembly 12 can also cooperate with the first support plate 35, the main shaft 31 and the second support plate 36 to jointly surround a more complete water drop-shaped receiving space. Figure 36 As shown, the support surface 351 of the first support plate 35, the surface of the connecting section 3253 of the first swing arm 325, the support surface 411 of the main support plate 41 of the main shaft 31, the surface of the connecting section 3263 of the second swing arm 326 and the support surface 361 of the second support plate 36 together surround a water drop-shaped receiving space.

[0265] Please refer again Figure 35When the folding assembly 12 is in the open state, the first splicing block 3251e of the first swing arm 325 is at least partially located in the first avoidance gap 414 of the main support plate 41, and the second splicing block 3261e of the second swing arm 326 is at least partially located in the second avoidance gap 415 of the main support plate 41. At this time, the main support plate 41, the first splicing block 3251e, the second splicing block 3261e, the first support plate 35 and the second support plate 36 jointly support the bending portion of the screen, and the folding assembly 12 can provide a relatively complete supporting environment for the bending portion 22 of the screen 2, so that when the bending portion 22 of the screen 2 is pressed or collided, the risk of obvious dents or damage is small, thereby improving the reliability of the screen 2.

[0266] For example, Figure 35 As shown, when the folding assembly 12 is in the open state, the support surface 411 of the main support plate 41, the end surface of the first splicing block 3251e, the support surface 351 of the first support plate 35, the end surface of the second splicing block 3261e, and the support surface 361 of the second support plate 36 are spliced ​​together to form the support surface of the folding assembly 12. At this time, the support surface of the folding assembly 12 has no holes or the holes are very small, and the support surface of the folding assembly 12 is relatively complete, which can provide a good support environment for the bending portion 22 of the screen 2 to improve the reliability of the screen 2.

[0267] The support surface 351 of the first support plate 35 may be a flat surface to provide a better support environment for the bent portion 22 of the screen 2. Alternatively, one or more shallow grooves may be provided on the support surface 351 of the first support plate 35. These grooves may be used for, but not limited to, coating or installing an adhesive layer, and the bent portion 22 of the screen 2 is connected via the adhesive layer. It is understandable that the depth of the grooves in this part is very small, and the area of ​​the screen 2 corresponding to the grooves in this part will not be significantly sunken when subjected to external pressure (such as pressure from a user), so that the screen 2 has a higher reliability and a longer service life.

[0268] The support surface 361 of the second support plate 36 can be a flat surface to provide a better support environment for the bent portion 22 of the screen 2. Alternatively, one or more shallow grooves can be set on the support surface 361 of the second support plate 36. These grooves can be used for, but not limited to, coating or installing an adhesive layer to connect the bent portion 22 of the screen 2 through the adhesive layer. It can be understood that the depth of the grooves in this part is very small, and the area of ​​the screen 2 corresponding to the grooves in this part will not be significantly dented when subjected to external pressure (such as pressure from the user), so that the screen 2 has higher reliability and longer service life.

[0269] Exemplarily, when the folding assembly 12 is in the open state, the first supplementary block 3514 of the first support plate 35 can be at least partially located in the first avoidance notch 414, so that the support surface 351 of the first support plate 35, the end surface of the first splicing block 3251e and the support surface 411 of the main support plate 41 have a better splicing effect, and the gap between adjacent support surfaces is smaller. Similarly, the second supplementary block 3614 of the second support plate 36 can be at least partially located in the second avoidance notch 415, so that the support surface 361 of the second support plate 36, the end surface of the second splicing block 3261e and the support surface 411 of the main support plate 41 have a better splicing effect, and the gap between adjacent support surfaces is smaller.

[0270] Of course, in some other embodiments, the first splicing block 3251e of the first swing arm 325 can fill the first avoidance gap 414 to a higher degree, and the second splicing block 3261e of the second swing arm 326 can fill the second avoidance gap 415 to a higher degree through structural or size design, then the first support plate 35 may not be provided with the first supplementary block 3514, and the second support plate 36 may not be provided with the second supplementary block 3614. The embodiment of the present application does not strictly limit the specific splicing structure of the support plate, the main shaft 31 and the moving parts.

[0271] In the embodiment of the present application, when the folding assembly 12 is in the open state, the first support plate 35 and the second support plate 36 can overlap the main shaft 31 and some moving parts of the multiple connecting components (32, 33, 34), so that the main shaft 31 and the moving parts can provide rigid support for the first support plate 35 and the second support plate 36, reduce the pressing virtual position of the first support plate 35 and the second support plate 36, and improve the reliability of the screen 2. The following is an example.

[0272] Please refer again Figure 33 When the folding assembly 12 is in the open state, the first support plate 35 overlaps the first support block 416 of the main support plate 41, and the second support plate 36 overlaps the second support block 417 of the main support plate 41. In this embodiment, when the folding assembly 12 is in the open state, since the first support block 416 of the main support plate 41 can provide rigid support for the first support plate 35, and the second support block 417 can provide rigid support for the second support plate 36, the local rigidity of the first support plate 35 and the second support plate 36 can be improved through the overlapping design, and the pressing virtual position of the first support plate 35 and the second support plate 36 can be reduced, so as to improve the reliability of the screen 2.

[0273] Exemplarily, the first support plate 35 has a first overlapping surface 355 overlapping the support surface 4161 of the first support block 416, and a bevel is formed between the first overlapping surface 355 of the first support plate 35 and the support surface 4161 of the first support block 416, which is conducive to increasing the overlapping area, so that the first support block 416 supports the first support plate 35 more stably. The second support plate 36 has a first overlapping surface 365 overlapping the support surface 4171 of the second support block 417, and a bevel is formed between the first overlapping surface 365 of the second support plate 36 and the support surface 4171 of the second support block 417, which is conducive to increasing the overlapping area, so that the second support block 417 supports the second support plate 36 more stably.

[0274] Please refer again Figure 35 When the folding assembly 12 is in the open state, the first support plate 35 can also overlap the first swing arm 325, for example, overlap the rotating end 3251 and / or the connecting section 3253 of the first swing arm 325; the second support plate 36 can also overlap the second swing arm 326, for example, overlap the rotating end 3261 and / or the connecting section 3263 of the second swing arm 326. In this embodiment, when the folding assembly 12 is in the open state, since the rotating end 3251 and / or the connecting section 3253 of the first swing arm 325 can provide rigid support for the first support plate 35, and the rotating end 3261 and / or the connecting section 3263 of the second swing arm 326 can provide rigid support for the second support plate 36, the overlapping design can improve the local rigidity of the first support plate 35 and the second support plate 36, reduce the pressing virtual position of the first support plate 35 and the second support plate 36, and improve the reliability of the screen 2.

[0275] Exemplarily, the first support plate 35 has a second overlap surface 356 overlapping the first swing arm 325, and the second overlap surface 356 of the first support plate 35 forms an inclined surface with the first swing arm 325, which is not only conducive to increasing the overlap area, so that the first swing arm 325 supports the first support plate 35 more stably, but also enables the relative movement between the first support plate 35 and the first swing arm 325 to be less likely to interfere and smoother. The second support plate 36 has a second overlap surface 366 overlapping the second swing arm 326, and the second overlap surface 366 of the second support plate 36 forms an inclined surface with the second swing arm 326, which is not only conducive to increasing the overlap area, so that the second swing arm 326 supports the second support plate 36 more stably, but also enables the relative movement between the second support plate 36 and the second swing arm 326 to be less likely to interfere and smoother.

[0276] Please refer to Figure 8 and Figure 37 , Figure 37 yes Figure 5 The cross-sectional structure diagram of the folding assembly 12 is shown along II.

[0277] In some embodiments, when the folding assembly 12 is in the open state, the first support plate 35 may also overlap multiple third support blocks 421 of the top cover 42, and the second support plate 36 may also overlap multiple fourth support blocks 422 of the top cover 42. Among them, other covers of the main shaft 31 (such as the middle cover 43 or the bottom cover 44) may also be provided with third support blocks 421 and fourth support blocks 422, which may also be used to overlap the first support plate 35 and the second support plate 36 respectively, which will not be described in detail here.

[0278] In this embodiment, since the third support block 421 protrudes toward the direction close to the main support plate 41, the third support block 421 and the first support block 416 are arranged in a staggered manner, and the third support block 421 and the first support block 416 are close to each other, so the third support block 421 and the first support block 416 can better support the first support plate 35 at the same time, and the structural requirements for the first support plate 35 are relatively low, and the support structure is easy to implement. Similarly, since the fourth support block 422 protrudes toward the direction close to the main support plate 41, the fourth support block 422 and the second support block 417 are arranged in a staggered manner, and the fourth support block 422 and the second support block 417 are close to each other, so the fourth support block 422 and the second support block 417 can better support the second support plate 36 at the same time, and the structural requirements for the second support plate 36 are relatively low, and the support structure is easy to implement.

[0279] Exemplarily, the first support plate 35 has a third overlapping surface 357 that overlaps the multiple third support blocks 421 of the top cover body 42. The third overlapping surface 357 of the first support plate 35 and the multiple third support blocks 421 of the top cover body 42 form an inclined surface, which is not only beneficial to increase the overlapping area, making the support of the first support plate 35 by the multiple third support blocks 421 of the top cover body 42 more stable, but also enables the relative movement of the first support plate 35 and the multiple third support blocks 421 of the top cover body 42 to be less likely to interfere and smoother. The second support plate 36 has a third overlapping surface 367 for overlapping the plurality of fourth support blocks 422 of the top cover body 42. An inclined surface is formed between the third overlapping surface 367 of the second support plate 36 and the plurality of fourth support blocks 422 of the top cover body 42, which is not only conducive to increasing the overlapping area, making the support of the second support plate 36 by the plurality of fourth support blocks 422 of the top cover body 42 more stable, but also enables the relative movement between the second support plate 36 and the plurality of fourth support blocks 422 of the top cover body 42 to be less prone to interference and smoother.

[0280] In the embodiment of the present application, when the folding assembly 12 is in the closed state, the first support plate 35 and the second support plate 36 can overlap the fixing frame and part of the moving parts of the connecting assembly, so that the fixing frame and the moving parts can provide rigid support for the first support plate 35 and the second support plate 36, and the first support plate 35 and the second support plate 36 can cooperate with the main shaft 31 to form a more stable receiving space to better accommodate the screen 2 and improve the reliability of the screen 2. The following is an example.

[0281] Please refer to Figures 38 to 40 , Figure 38 yes Figure 3 The schematic diagram of the cross-sectional structure of the electronic device 200 is shown along JJ. Figure 39 yes Figure 3 The schematic diagram of the cross-sectional structure of the electronic device 200 is shown along KK. Figure 40 yes Figure 3 The cross-sectional structure diagram of the electronic device 200 is shown along line LL.

[0282] In some embodiments, when the folding assembly 12 is in a closed state, such as Figure 38 As shown, the first support plate 35 overlaps the first swing arm 325, and the second support plate 36 overlaps the second swing arm 326; Figure 39 As shown, the first support plate 35 overlaps the first fixing frame 321, and the second support plate 36 overlaps the second fixing frame 322; Figure 40 As shown, the first support plate 35 overlaps the first connecting arm 323, and the second support plate 36 overlaps the second connecting arm 324. At this time, the swing arm, the fixing frame and the connecting arm of the connecting assembly can provide rigid support for the support plate, so that the relative position of the first support plate 35 and the second support plate 36 is stable, providing a stable supporting environment for the bending portion 22 of the screen 2, and the first support plate 35 and the second support plate 36 are more likely to maintain the teardrop shape of the bending portion 22 of the screen 2, which is conducive to improving the reliability of the screen 2.

[0283] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A foldable electronic device (200), characterized in that, the foldable electronic device (200) includes a first housing (11), a second housing (13), a folding assembly (12), and a foldable screen (2); the folding assembly (12) includes a main shaft (31), a first fixing bracket (321), a second fixing bracket (322), a first connecting arm (323), a second connecting arm (324), a first swing arm (325), a second swing arm (326), a first support plate (35), and a second support plate (36); the first connecting arm (323) includes a first end (3231) and a second end (3232), the first end (3231) of the first connecting arm (323) is rotatably connected to the main shaft (31), and the second end (3232) of the first connecting arm (323) is rotatably connected to the first fixing bracket (321); the second connecting arm (324) includes a first end (3241) and a second end (3242), the first end (3241) of the second connecting arm (324) is rotatably connected to the main shaft (31), and the second end (3242) of the second connecting arm (324) is rotatably connected to the second fixing bracket (322); the first swing arm (325) includes a rotating end (3251) and a sliding end (3252), the rotating end (3251) of the first swing arm (325) is rotatably connected to the main shaft (31), and the sliding end (3252) of the first swing arm (325) is slidably connected to the first fixing bracket (321); the second swing arm (326) includes a rotating end (3261) and a sliding end (3262), the rotating end (3261) of the second swing arm (326) is rotatably connected to the main shaft (31), and the sliding end (3262) of the second swing arm (326) is slidably connected to the second fixing bracket (322); the first fixing bracket (321) is fixedly connected to the first housing (11), and the second fixing bracket (322) is fixedly connected to the second housing (13); the first fixing bracket (321) includes a first mating groove (3213), and the second fixing bracket (322) includes a second mating groove (3223); the first connecting arm (323) further includes a first connecting section (3235), the first connecting section (3235) is connected between the first end (3231) and the second end (3232) of the first connecting arm (323), the first connecting section (3235) includes a first mating block (3235a), and the first mating block (3235a) is installed in the first mating groove (3213); The second connecting arm (324) further includes a second connecting section (3245) which is connected between the first end (3241) and the second end (3242) of the second connecting arm (324). The second connecting section (3245) includes a second mating block (3245a) which is installed in the second mating groove (3223); The main shaft (31) includes a main support plate (41), a first arc-shaped space (41b) and a second arc-shaped space (41c). The main support plate (41) further includes a first relief hole (412) and a second relief hole (413). The first relief hole (412) communicates with the first arc-shaped space (41b), and the second relief hole (413) communicates with the second arc-shaped space (41c); The first end (3231) of the first connecting arm (323) includes a first arc-shaped arm (3233), and the first end (3241) of the second connecting arm (324) includes a second arc-shaped arm (3243). When the foldable electronic device (200) is in the open state, at least a part of the end of the first arc-shaped arm (3233) is located in the first relief hole (412), and at least a part of the end of the second arc-shaped arm (3243) is located in the second relief hole (413); When the foldable electronic device (200) is in the open state, the first support plate (35) and the second support plate (36) are respectively located on both sides of the main support plate (41). The main support plate (41), at least a part of the end of the first arc-shaped arm (3233), at least a part of the end of the second arc-shaped arm (3243), the first support plate (35) and the second support plate (36) jointly support a part of the foldable screen (2).

2. The foldable electronic device (200) according to claim 1, wherein, The first end (3231) of the first connecting arm (323) is rotatably connected to the main shaft (31), including: the first arc-shaped arm (3233) is installed in the first arc-shaped space (41b); The first end (3241) of the second connecting arm (324) is rotatably connected to the main shaft (31), including: the second arc-shaped arm (3243) is installed in the second arc-shaped space (41c).

3. The foldable electronic device (200) according to claim 1 or 2, wherein, The second end (3232) of the first connecting arm (323) is rotatably connected to the first fixing frame (321), including: The second end (3232) of the first connecting arm (323) and the first fixing frame (321) are rotatably connected through a first rotating shaft (3281) and a first rotating shaft hole (3234); The second end (3242) of the second connecting arm (324) is rotatably connected to the second fixing frame (322), including: The second end (3242) of the second connecting arm (324) and the second fixing bracket (322) are rotatably connected through a second rotating shaft (3282) and a second rotating shaft hole (3244).

4. The foldable electronic device (200) according to claim 1, wherein, The first fitting block (3235a) protrudes from the side surface of the first connecting section (3235); the second fitting block (3245a) protrudes from the side surface of the second connecting section (3245).

5. The foldable electronic device (200) according to claim 1, wherein, The first connecting section (3235) of the first connecting arm (323) includes two first fitting blocks (3235a), and the two first fitting blocks (3235a) respectively protrude from the two side surfaces of the first connecting section (3235); The second connecting section (3245) of the second connecting arm (324) includes two second fitting blocks (3245a), and the two second fitting blocks (3245a) respectively protrude from the two side surfaces of the second connecting section (3245).

6. The foldable electronic device (200) according to claim 1, wherein, The mating surface (3235b) of the first fitting block (3235a) contacts the mating wall surface (3213a) of the first fitting groove (3213); The mating surface (3245b) of the second fitting block (3245a) contacts the mating wall surface (3223a) of the second fitting groove (3223).

7. The foldable electronic device (200) according to claim 6, wherein, The mating surface (3235b) of the first fitting block (3235a) and / or the mating wall surface (3213a) of the first fitting groove (3213) is an arc surface.

8. The foldable electronic device (200) according to claim 7, wherein, The first support plate (35) is slidably connected to the sliding end (3252) of the first swing arm (325), and the first support plate (35) is rotatably connected to the first fixing bracket (321); The second support plate (36) is slidably connected to the sliding end (3262) of the second swing arm (326), and the second support plate (36) is rotatably connected to the second fixing bracket (322).

9. The foldable electronic device (200) according to claim 8, wherein, The main shaft (31) includes a main support plate (41), and the main support plate (41) is provided with a first avoidance notch (414) and a second avoidance notch (415); The rotating end (3251) of the first swing arm (325) includes a first splicing block (3251e), and the rotating end (3261) of the second swing arm (326) includes a second splicing block (3261e); When the foldable electronic device (200) is in the open state, at least a part of the first splicing block (3251e) is located in the first avoidance notch (414), and at least a part of the second splicing block (3261e) is located in the second avoidance notch (415).

10. The foldable electronic device (200) according to claim 9, wherein, when the foldable electronic device (200) is in the open state, the first support plate (35) and the second support plate (36) are respectively located on both sides of the main support plate (41), and the main support plate (41), the first splicing block (3251e), the second splicing block (3261e), the first support plate (35) and the second support plate (36) jointly support a part of the foldable screen.

11. The foldable electronic device (200) according to claim 10, wherein, the foldable screen (2) includes a first part, a second part and a third part arranged in sequence, the first part of the foldable screen (2) is fixed to the first housing (11), and the third part of the foldable screen (2) is fixed to the second housing (13); during the unfolding or folding process of the foldable electronic device, the second part of the foldable screen (2) deforms; when the foldable electronic device (200) is in the open state, the main support plate (41), the first splicing block (3251e), the second splicing block (3261e), the first support plate (35) and the second support plate (36) jointly support the second part of the foldable screen (2).

12. The foldable electronic device (200) according to claim 9, wherein, both the first avoidance notch (414) and the second avoidance notch (415) penetrate through the main support plate (41) and form openings on the support surface (411) of the main support plate (41), and the support surface (411) of the main support plate (41) is the side of the main support plate (41) facing the foldable screen (2).

13. The foldable electronic device (200) according to claim 9, wherein, the main shaft (31) has a moving space (41a), the moving space (41a) communicates with the first avoidance notch (414) and the second avoidance notch (415), and when the foldable electronic device (200) is in the closed state, the first splicing block (3251e) and the second splicing block (3261e) are turned into the moving space (41a).

14. The foldable electronic device (200) according to claim 9, wherein, the main support plate (41) has a support surface (411) for supporting the foldable screen (2); when the foldable electronic device (200) is in the open state, the end face of the first splicing block (3251e), the end face of the second splicing block (3261e) and the support surface (411) of the main support plate (41) are flush.

15. The foldable electronic device (200) according to claim 9, wherein, When the foldable electronic device (200) is in the open state, the support surface (351) of the first support plate (35), the support surface (361) of the second support plate (36), the support surface (411) of the main support plate (41), the end surface of the first splicing block (3251e), and the end surface of the second splicing block (3261e) are spliced together to jointly support a part of the foldable screen (2).

16. The foldable electronic device (200) according to claim 9, wherein, the first support plate (35) includes a first supplementary block (3514), and the second support plate (36) includes a second supplementary block (3614); when the foldable electronic device (200) is in the open state, at least a part of the first supplementary block (3514) is located in the first avoidance notch (414), and at least a part of the second supplementary block (3614) is located in the second avoidance notch (415).

17. The foldable electronic device (200) according to claim 1, wherein, the main support plate (41) includes a first support block (416) and a second support block (417), and the first support block (416) and the second support block (417) are respectively protrudingly provided on both sides of the main support plate (41); when the foldable electronic device (200) is in the open state, the first support plate (35) overlaps the first support block (416), and the second support plate (36) overlaps the second support block (417).

18. The foldable electronic device (200) according to claim 17, wherein, the main shaft (31) further includes a cover body (42), the cover body (42) is fixed on the side of the main support plate (41) facing away from the support surface (411) of the main support plate (41), the cover body (42) further includes a third support block (421) and a fourth support block (422), and the third support block (421) and the fourth support block (422) are respectively protrudingly provided on both sides of the cover body (42); when the foldable electronic device (200) is in the open state, the first support plate (35) overlaps the third support block (421), and the second support plate (36) overlaps the fourth support block (422).

19. The foldable electronic device (200) according to claim 18, wherein, the third support block (421) protrudes towards the direction close to the main support plate (41), and the third support block (421) and the first support block (416) are arranged in a staggered manner.

20. The foldable electronic device (200) according to claim 8, wherein, when the foldable electronic device (200) is in the open state, the first support plate (35) overlaps the first swing arm (325), and the second support plate (36) overlaps the second swing arm (326).

21. The foldable electronic device (200) according to claim 8, wherein, When the foldable electronic device (200) is in a closed state, the first support plate (35) overlaps the first connecting arm (323), and the second support plate (36) overlaps the second connecting arm (324).

22. The foldable electronic device (200) according to claim 8, wherein, when the foldable electronic device (200) is in a closed state, the first support plate (35) overlaps the first fixing bracket (321) or the first swing arm (325), and the second support plate (36) overlaps the second fixing bracket (322) or the second swing arm (326).

23. The foldable electronic device (200) according to claim 9, wherein, when the foldable electronic device (200) is in a closed state, at least a part of the first swing arm (325) is located in the first avoidance notch (414), and at least a part of the second swing arm (326) is located in the second avoidance notch (415).

24. A folding assembly (12), wherein, applied to a foldable electronic device (200), characterized in that the folding assembly (12) is used to support the foldable screen (2) of the foldable electronic device (200); the folding assembly (12) includes a main shaft (31), a first fixing bracket (321), a second fixing bracket (322), a first connecting arm (323), a second connecting arm (324), a first swing arm (325), a second swing arm (326), a first support plate (35), and a second support plate (36); the first connecting arm (323) includes a first end (3231) and a second end (3232), the first end (3231) of the first connecting arm (323) is rotatably connected to the main shaft (31), and the second end (3232) of the first connecting arm (323) is rotatably connected to the first fixing bracket (321); the second connecting arm (324) includes a first end (3241) and a second end (3242), the first end (3241) of the second connecting arm (324) is rotatably connected to the main shaft (31), and the second end (3242) of the second connecting arm (324) is rotatably connected to the second fixing bracket (322); the first swing arm (325) includes a rotating end (3251) and a sliding end (3252), the rotating end (3251) of the first swing arm (325) is rotatably connected to the main shaft (31), and the sliding end (3252) of the first swing arm (325) is slidably connected to the first fixing bracket (321); the second swing arm (326) includes a rotating end (3261) and a sliding end (3262), the rotating end (3261) of the second swing arm (326) is rotatably connected to the main shaft (31), and the sliding end (3262) of the second swing arm (326) is slidably connected to the second fixing bracket (322); the first fixing bracket (321) includes a first mating groove (3213), and the second fixing bracket (322) includes a second mating groove (3223); The first connecting arm (323) further includes a first connecting section (3235). The first connecting section (3235) is connected between the first end (3231) and the second end (3232) of the first connecting arm (323). The first connecting section (3235) includes a first fitting block (3235a), and the first fitting block (3235a) is installed in the first fitting groove (3213); The second connecting arm (324) further includes a second connecting section (3245). The second connecting section (3245) is connected between the first end (3241) and the second end (3242) of the second connecting arm (324). The second connecting section (3245) includes a second fitting block (3245a), and the second fitting block (3245a) is installed in the second fitting groove (3223); The main shaft (31) includes a main support plate (41), a first arc-shaped space (41b), and a second arc-shaped space (41c). The main support plate (41) further includes a first avoidance hole (412) and a second avoidance hole (413). The first avoidance hole (412) communicates with the first arc-shaped space (41b), and the second avoidance hole (413) communicates with the second arc-shaped space (41c); The first end (3231) of the first connecting arm (323) includes a first arc-shaped arm (3233). The first end (3241) of the second connecting arm (324) includes a second arc-shaped arm (3243). When the foldable electronic device (200) is in the open state, at least a part of the end of the first arc-shaped arm (3233) is located in the first avoidance hole (412), and at least a part of the end of the second arc-shaped arm (3243) is located in the second avoidance hole (413); When the foldable electronic device (200) is in the open state, the first support plate (35) and the second support plate (36) are respectively located on both sides of the main support plate (41). The main support plate (41), at least a part of the end of the first arc-shaped arm (3233), at least a part of the end of the second arc-shaped arm (3243), the first support plate (35), and the second support plate (36) jointly support a part of the foldable screen (2).

25. The folding assembly (12) according to claim 24, wherein, The first end (3231) of the first connecting arm (323) is rotatably connected to the main shaft (31), including: the first arc-shaped arm (3233) is installed in the first arc-shaped space (41b); The first end (3241) of the second connecting arm (324) is rotatably connected to the main shaft (31), including: the second arc-shaped arm (3243) is installed in the second arc-shaped space (41c).

26. The folding assembly (12) according to claim 24, wherein, The second end (3232) of the first connecting arm (323) is rotatably connected to the first fixing frame (321), including: The second end (3232) of the first connecting arm (323) and the first fixing bracket (321) are rotatably connected through a first rotating shaft (3281) and a first rotating shaft hole (3234); The second end (3242) of the second connecting arm (324) is rotatably connected to the second fixing bracket (322), including: The second end (3242) of the second connecting arm (324) and the second fixing bracket (322) are rotatably connected through a second rotating shaft (3282) and a second rotating shaft hole (3244).

27. The folding assembly (12) according to claim 24, wherein, The first engaging block (3235a) protrudes from the side surface of the first connecting section (3235); the second engaging block (3245a) protrudes from the side surface of the second connecting section (3245).

28. The folding assembly (12) according to claim 24, wherein, The first connecting section (3235) of the first connecting arm (323) includes two first engaging blocks (3235a), and the two first engaging blocks (3235a) respectively protrude from two side surfaces of the first connecting section (3235); The second connecting section (3245) of the second connecting arm (324) includes two second engaging blocks (3245a), and the two second engaging blocks (3245a) respectively protrude from two side surfaces of the second connecting section (3245).

29. The folding assembly (12) according to claim 24, wherein, The engaging surface (3235b) of the first engaging block (3235a) contacts the engaging wall surface (3213a) of the first engaging groove (3213); The engaging surface (3245b) of the second engaging block (3245a) contacts the engaging wall surface (3223a) of the second engaging groove (3223).

30. The folding assembly (12) according to claim 29, wherein, The engaging surface (3235b) of the first engaging block (3235a) and / or the engaging wall surface (3213a) of the first engaging groove (3213) is an arc surface.

31. The folding assembly (12) according to claim 30, wherein, The first support plate (35) is slidably connected to the sliding end (3252) of the first swing arm (325), and the first support plate (35) is rotatably connected to the first fixing bracket (321); The second support plate (36) is slidably connected to the sliding end (3262) of the second swing arm (326), and the second support plate (36) is rotatably connected to the second fixing bracket (322).

32. The folding assembly (12) according to claim 31, wherein, The main shaft (31) includes a main support plate (41), and the main support plate (41) is provided with a first avoidance notch (414) and a second avoidance notch (415); The rotating end (3251) of the first swing arm (325) includes a first splicing block (3251e), and the rotating end (3261) of the second swing arm (326) includes a second splicing block (3261e). When the folding assembly (12) is in the open state, at least a part of the first splicing block (3251e) is located in the first avoidance notch (414), and at least a part of the second splicing block (3261e) is located in the second avoidance notch (415).

33. The folding assembly (12) according to claim 32, wherein, When the folding assembly (12) is in the open state, the first support plate (35) and the second support plate (36) are respectively located on both sides of the main support plate (41), and the support surface of the main support plate (41), the end surface of the first splicing block (3251e), the end surface of the second splicing block (3261e), the support surface of the first support plate (35), and the support surface of the second support plate (36) are flush.

34. The folding assembly (12) according to claim 32, wherein, Both the first avoidance notch (414) and the second avoidance notch (415) penetrate through the main support plate (41) and form openings on the support surface (411) of the main support plate (41).

35. The folding assembly (12) according to claim 32, wherein, The main shaft (31) has an activity space (41a), the activity space (41a) communicates with the first avoidance notch (414) and the second avoidance notch (415), and when the folding assembly (12) is in the closed state, the first splicing block (3251e) and the second splicing block (3261e) are turned into the activity space (41a).

36. The folding assembly (12) according to claim 32, wherein, When the folding assembly (12) is in the open state, the support surface (351) of the first support plate (35), the support surface (361) of the second support plate (36), the support surface (411) of the main support plate (41), the end surface of the first splicing block (3251e), and the end surface of the second splicing block (3261e) are spliced.

37. The folding assembly (12) according to claim 32, wherein, The first support plate (35) includes a first supplementary block (3514), and the second support plate (36) includes a second supplementary block (3614); when the folding assembly (12) is in the open state, at least a part of the first supplementary block (3514) is located in the first avoidance notch (414), and at least a part of the second supplementary block (3614) is located in the second avoidance notch (415).

38. The folding assembly (12) according to claim 24, wherein, The main support plate (41) includes a first support block (416) and a second support block (417), and the first support block (416) and the second support block (417) are respectively protrudingly provided on both sides of the main support plate (41); When the folding assembly (12) is in the open state, the first support plate (35) overlaps the first support block (416), and the second support plate (36) overlaps the second support block (417).

39. The folding assembly (12) according to claim 38, wherein, the main shaft (31) further includes a cover body (42), the cover body (42) is fixed to one side of the main support plate (41) facing away from the support surface (411) of the main support plate (41), the cover body (42) further includes a third support block (421) and a fourth support block (422), and the third support block (421) and the fourth support block (422) are respectively protrudingly provided on both sides of the cover body (42); when the folding assembly (12) is in the open state, the first support plate (35) overlaps the third support block (421), and the second support plate (36) overlaps the fourth support block (422).

40. The folding assembly (12) according to claim 39, wherein, the third support block (421) protrudes towards the direction close to the main support plate (41), and the third support block (421) and the first support block (416) are arranged in a staggered manner.

41. The folding assembly (12) according to claim 31, wherein, when the folding assembly (12) is in the open state, the first support plate (35) overlaps the first swing arm (325), and the second support plate (36) overlaps the second swing arm (326).

42. The folding assembly (12) according to claim 31, wherein, when the folding assembly (12) is in the closed state, the first support plate (35) overlaps the first fixing frame (321), the first swing arm (325) or the first connecting arm (323), and the second support plate (36) overlaps the second fixing frame (322), the second swing arm (326) or the second connecting arm (324).

43. The folding assembly (12) according to claim 31, wherein, when the folding assembly (12) is in the closed state, the first support plate (35) overlaps the first fixing frame (321) or the first swing arm (325), and the second support plate (36) overlaps the second fixing frame (322) or the second swing arm (326).

44. The folding assembly (12) according to claim 32, wherein, when the folding assembly (12) is in the closed state, at least a part of the first swing arm (325) is located in the first avoidance notch (414), and at least a part of the second swing arm (326) is located in the second avoidance notch (415).

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