Foldable electronic device

Abstract

The invention provides foldable electronic equipment which comprises a display end part, a system end part and a rotating shaft assembly, and the rotating shaft assembly can enable a display end shell of the display end part to rotate around a first axis relative to a system end shell of the system end part. Therefore, the display end part is switched between a closed state and an open state relative to the system end part. The foldable electronic equipment further comprises a foot pad and a transmission mechanism, and when the display end part is switched between the closed state and the open state, under the driving of the first connecting shaft of the rotating shaft assembly, the transmission mechanism is in linkage with the foot pad to move in the first direction so as to stretch out of or retract into the system end shell. According to the foldable electronic equipment provided by the invention, the heat dissipation performance can be improved, and meanwhile, the appearance smoothness and the light and thin design are ensured.

Description

Technical Field

[0001] The present application relates to the field of electronic devices, and in particular to a foldable electronic device. Background Art

[0002] With the rapid development of consumer electronics, foldable electronic devices (such as laptops, foldable screen phones, etc.) are increasingly favored by users due to their portability and versatility. In order to meet users' pursuit of extreme lightness and thinness, the internal space of the device is constantly compressed, resulting in a serious lack of heat dissipation space. Traditional heat dissipation solutions, such as fans and heat pipes, are difficult to layout and install in a small space, resulting in a significant reduction in the heat dissipation efficiency of the device, which in turn affects the performance and service life of the device.

[0003] In order to improve the heat dissipation performance, some designs use external foot pads or partial elevation designs, which increase the air circulation between the bottom surface of the bottom and the supporting surface (for example, the desktop) by lifting the bottom of the foldable electronic device, thereby improving the heat dissipation effect. For example, some laptops have foot pads installed on their bottom surface, or raised structures are set at specific positions on their bottom surface to form air circulation channels. Although this solution alleviates the heat dissipation problem to a certain extent, it destroys the overall appearance integrity of the device and affects the simplicity and aesthetics of the product. In addition, the additional foot pads or raised structures increase the size and weight of the device, affecting portability and lightweight design. In addition, the external foot pads may have the risk of falling off, and the partial elevation design may cause the device to be unstable, thus affecting the user experience.

[0004] Therefore, existing foldable electronic devices cannot improve heat dissipation performance while meeting the requirements of simple appearance and lightweight design. Summary of the invention

[0005] The foldable electronic device provided in the embodiment of the present application solves the problem that the existing foldable electronic devices cannot improve the heat dissipation performance while meeting the requirements of simple appearance and lightweight design.

[0006] An embodiment of the present application provides a foldable electronic device, including a display end part, a system end part and a hinge assembly, the display end part includes a display end shell, the system end part includes a system end shell, the hinge assembly is arranged between the display end shell and the system end shell, and includes a first connecting shaft, so that the display end shell and the first connecting shaft can rotate relative to the system end shell around a first axis, so that the display end part can switch between a closed state and an open state relative to the system end part.

[0007] The system end shell is surrounded by a receiving cavity and includes a top and a bottom that are relatively spaced apart along its thickness direction. A through hole is provided at the bottom, one end of the through hole is connected to the receiving cavity, and the other end extends to the bottom surface of the bottom.

[0008] The foldable electronic device also includes a foot pad and a transmission mechanism. The foot pad is arranged in the accommodating cavity of the system end shell, and is telescopically arranged in the through hole along the first direction to extend or retract the system end shell. The transmission mechanism is arranged in the accommodating cavity of the system end shell, and is located between the first connecting shaft and the foot pad. In response to the rotation of the first connecting shaft relative to the system end shell, the transmission mechanism can drive the foot pad to move relative to the system end shell along the first direction.

[0009] When the display end part switches from a closed state to an open state, driven by the first connecting shaft, the transmission mechanism links the foot pad to move along the first direction away from the top and gradually extends out of the system end shell; when the display end part switches from an open state to a closed state, driven by the first connecting shaft, the transmission mechanism links the foot pad to move along the first direction toward the top and gradually retracts into the system end shell.

[0010] The foldable electronic device provided in the embodiment of the present application has a display end shell that can be rotated relative to the system end shell through the first connecting axis of the hinge assembly, so that the display end part can be switched between a closed state and an open state relative to the system end part. Thus, the foldable electronic device can be switched between a folded state (corresponding to a "closed state") and an unfolded state (corresponding to an "open state"), and the user can choose different usage angles in the unfolded state according to different usage requirements. The angles are flexible, ensuring the user's usage experience.

[0011] Furthermore, the foldable electronic device also includes a foot pad and a transmission mechanism arranged in the accommodating cavity of the system end shell. The foot pad can be telescopically penetrated through a through hole at the bottom of the system end shell in a first direction. The transmission mechanism is driven by the rotation of the first connecting shaft, so that the foot pad can move along the first direction to extend or retract the system end shell.

[0012] Specifically, in the process of the display end part rotating from the closed state to the open state, that is, in the process of the foldable electronic device being unfolded, the transmission mechanism, driven by the rotation of the first connecting shaft, can make the foot pad move along the first direction away from the top of the system end shell, and gradually extend out of the system end shell, or it can be understood that the lower surface of the foot pad (that is, a surface of the foot pad away from the top of the system end shell) gradually protrudes from the bottom surface of the bottom of the system end shell, and the distance between the lower surface of the foot pad and the bottom surface of the bottom of the system end shell gradually increases, so that when the display end part is in the open state, the lower surface of the foot pad protrudes from the bottom surface of the bottom of the system end shell by a certain height, so that when the lower surface of the foot pad contacts the supporting surface (that is, the plane on which it is placed, such as a countertop, desktop, etc.), the system end shell is lifted relative to the supporting surface, that is, the system end shell is lifted by a certain height, so that the space formed between the system end shell and the supporting surface after it is lifted can serve as a heat dissipation space, accelerate the air circulation at the bottom of the system end shell, improve the heat dissipation efficiency, and improve its reliability and safety in use. It can be understood that, under the transmission action of the transmission mechanism, the rotation of the first connecting shaft around the first axis is converted into the extension and retraction of the foot pad in the first direction. This process is achieved spontaneously without the need to set up other power sources.

[0013] When the display end part switches from an open state to a closed state, the transmission mechanism, driven by the first connecting shaft, drives the foot pad to move along the first direction toward the top of the system end shell and gradually retracts into the system end shell. That is to say, in the process of the foldable electronic device from unfolding to folding, the foot pad gradually retracts into the accommodating cavity of the system end shell. In the folded state, the height of the lower surface of the foot pad relative to the bottom surface of the bottom of the system end shell is small, and it will not occupy too much external space. Alternatively, the lower surface of the foot pad in the folded state may not protrude from the bottom surface of the bottom of the system end shell, and may not even occupy external space, which has little impact on the appearance of the foldable electronic device. Furthermore, the foot pad can make full use of the thickness space in the accommodating cavity, and realize the retraction and storage as well as the extension and lifting functions of the foot pad without increasing the thickness of the system end shell, which can take into account the thickness of the whole machine and is conducive to the lightweight design of the foldable electronic device.

[0014] Furthermore, the extension and retraction of the foot pad in the accommodating cavity in the first direction is achieved by the rotation drive of the first connecting shaft during the folding or unfolding process of the foldable electronic device itself, without the need to set up other complex active mechanisms, and the structure is simple. In addition, the foot pad is linked to the transmission mechanism to achieve the lifting of the system end part. The transmission mechanism and the foot pad can be designed as reliable and small-volume components, which are easy to arrange and install in a limited space, so that it will not occupy too much layout space inside the foldable electronic device, which is conducive to the lightweight design of the electronic device.

[0015] Simply put, the transmission mechanism can convert the rotation of the first connecting axis in the foldable electronic device into the extension and retraction of the foot pad in the first direction, thereby realizing the function of the foot pad lifting the system end part. That is, during the unfolding process of the foldable electronic device, the lower surface of the foot pad can automatically and slowly protrude from the bottom surface of the bottom of the system end shell to ensure stable support. During the folding process of the foldable electronic device, at least part of the foot pad will automatically retract and be stored in the accommodating cavity, so that the foldable electronic device has additional heat dissipation space in the unfolded state, and there is no need to install other non-retractable foot pad designs. While ensuring the exquisite appearance and lightweight design of the foldable electronic device in the folded state, the heat dissipation space can be increased in the unfolded state to improve the heat dissipation performance.

[0016] On the other hand, the foot pad can also lift the foldable electronic device to a certain angle while supporting it, making keyboard operation more natural and comfortable, improving the user experience. At the same time, the foot pad has an anti-slip function, which can provide more stable support for the foldable electronic device.

[0017] In summary, the foldable electronic device provided in the embodiment of the present application can improve the heat dissipation performance while ensuring the flatness of the appearance and the thin and light design.

[0018] In one possible implementation, the transmission mechanism includes a first rotating member and a sliding member, the first rotating member is connected to the first connecting shaft and is fixed relative to the first connecting shaft along its circumference, and the sliding member is slidably connected to the accommodating cavity of the system end shell along a second direction; wherein the second direction is perpendicular to the first direction and the direction of the first axis.

[0019] The sliding member includes a first transmission part and a second transmission part. The first transmission part can be transmission-connected to the first rotating member. The second transmission part has a sliding surface for the foot pad to slide. The sliding surface has a first end and a second end spaced apart in a second direction. In the first direction, the sliding surface extends from its first end to the second end toward a direction close to the bottom.

[0020] In response to the rotation of the structure composed of the display end shell, the first connecting shaft and the first rotating member around the first axis, the first transmission part drives the sliding member to slide in the second direction, and the foot pad moves in the first direction under the cooperation of the sliding surface of the second transmission part and the foot pad.

[0021] When the display end portion switches from a closed state to an open state, the sliding member slides along the second direction, the foot pad slides from the first end of the sliding surface toward the second end, and moves along the first direction away from the top and gradually extends out of the system end housing.

[0022] By adopting the above scheme, the first rotating member can transmit the rotation of the first connecting shaft to the sliding member, realize the displacement of the sliding member in the second direction, and through the cooperation between the sliding surface on the sliding member and the foot pad, the foot pad slides along the first direction, so that the foot pad can lift the system end part and increase the heat dissipation space. Among them, when the display end part rotates from the closed state to the open state, the sliding member slides along the second direction, which can provide a moving space for the foot pad to move in the direction away from the top of the system end shell, so that the foot pad spontaneously lifts the system end part. When the display end part rotates from the open state to the closed state, the sliding member can slide along the second direction under the transmission of the first connecting shaft and the first rotating member, and the sliding surface contacts the foot pad, pushing the foot pad to gradually retract along the first direction and be stored in the accommodating cavity. In this way, the transmission mechanism is simple in design and easy to implement, and there is no need to add a complex structure or power source to realize the function, which can save the occupation of internal space and save costs.

[0023] Furthermore, the sliding member realizes the retraction and lifting functions through the cooperation between the sliding surface and the foot pad. The sliding surface has a simple structure and a simple process, and can realize stable and reliable motion conversion without adding other complex mechanisms. The operation is simple and the reliability is high.

[0024] In a possible implementation, when the display end portion is in a closed state, the foot pad abuts against the first end of the sliding surface.

[0025] In one possible implementation, when the foot pad is at the maximum lifting height position, the foot pad abuts against the second end of the sliding surface and the bottom of the system end shell, or, the foot pad abuts against the bottom of the system end shell and is detached from the sliding surface and is located on the side of the second end away from the first end, or, the foot pad abuts against the second end of the sliding surface.

[0026] In a possible implementation, the transmission mechanism further includes a second rotating member, which is rotatably connected to the accommodating cavity of the system end housing via a second connecting shaft, so that the second rotating member can rotate relative to the system end housing around a second axis, wherein the second axis is parallel to the first axis. The second rotating member can be transmission-connected to the first rotating member and the first transmission part, so that the first transmission part can be transmission-connected to the first rotating member via the second rotating member, wherein the rotation direction of the second rotating member is opposite to the rotation direction of the first rotating member.

[0027] In the second direction, the sliding surface extends from the first end to the second end thereof in a direction away from the first transmission portion.

[0028] When the display end part switches from a closed state to an open state, the first rotating member is driven by the first connecting shaft to rotate around the first axis, and drives the second rotating member to rotate around the second axis. Through the transmission connection between the second rotating member and the first transmission part, the sliding member is driven to slide along the second direction away from the foot pad. Under the cooperation of the sliding surface of the second transmission part and the foot pad, the foot pad moves along the first direction away from the top and gradually extends out of the system end shell.

[0029] By adopting the above scheme, the rotational movement of the first connecting shaft is transmitted to the first transmission part and the second transmission part of the sliding member in sequence through the first rotating member and the second rotating member, and the movement direction can be changed through the cooperation between the second transmission part and the foot pad. In the process of unfolding the foldable electronic device, the sliding member slides along the second direction away from the foot pad under the joint action of the first rotating member and the second rotating member, that is, slides in the direction close to the first connecting shaft, which can reduce the layout space in the second direction. The structure is simple and can simplify the structure of the sliding member, thereby reducing the space occupied by the sliding member in the accommodating cavity, which is conducive to the lightweight design of the foldable electronic device.

[0030] In a possible implementation, a mounting seat is provided in the accommodating cavity, the mounting seat is fixedly connected to a side surface of the bottom close to the top, and the second rotating member is rotatably connected to the mounting seat via a second connecting shaft.

[0031] In a possible implementation, the first rotating member is configured as a first gear, the second rotating member is configured as a second gear, the first transmission portion of the sliding member is provided with a rack, and the second gear can be meshed with the first gear and the rack.

[0032] The above scheme has a higher transmission efficiency through the gear transmission and the gear rack structure, has a compact structure, stable transmission, high reliability, is conducive to cooperation with the first connecting shaft, is easy to install, and has low cost.

[0033] In a possible implementation, the rack extends along the second direction, and the rack and the second transmission part are arranged in sequence in the second direction. When the display end part is in a closed state, the second gear is located at an end of the rack away from the second transmission part; when the display end part is in an open state, the second gear is located at an end of the rack close to the second transmission part.

[0034] With the above scheme, the rack and the second transmission part are sequentially arranged in the second direction, occupying a small space, and in the process of the display end part rotating from a closed state to an open state, that is, the process of the foldable electronic device from a closed state to an open state to a comfortable use angle, the rack moves toward the side away from the foot pad under the action of the first rotating member and the second rotating member, so that the foot pad has space to move in the first direction, so that the foot pad can move in the direction away from the top of the system end shell, gradually protruding from the bottom surface of the bottom of the system end shell to a certain height, to lift the system end part, while realizing the stable support of the foldable electronic device on the supporting surface, and improving its heat dissipation efficiency.

[0035] Furthermore, the rack is set according to the sliding distance of the sliding part inside the accommodating cavity, and cooperates with the rotation of the second gear to achieve high reliability and a relatively stable structure. It can also make full use of the length space in the second direction inside the accommodating cavity without reserving a large layout space, which can improve the integration of the transmission mechanism and is conducive to the lightweight design of foldable electronic devices.

[0036] In a possible implementation, the first gear is an incomplete gear, and the second gear is a complete gear. When the display end portion switches from a closed state to an open state, under the rotation of the first connecting shaft, the first gear is meshed with the second gear and the second gear is meshed with the rack, driving the foot pad to move along the first direction away from the top and gradually extend out of the system end shell until the opening angle of the display end portion is a preset angle, the foot pad extends to the maximum lifting height position relative to the system end shell, and the display end portion continues to be opened, the first gear gradually disengages from the second gear, the second gear, the rack and the foot pad remain stationary relative to the system end shell, and the foot pad remains unchanged at the maximum lifting height position.

[0037] By adopting the above scheme, when the display end part switches from a closed state to an open state, the first gear is meshed with the second gear, and the second gear is meshed with the rack, and the foot pad is driven by the first connecting shaft and the transmission mechanism to move in the first direction until the opening angle of the display end part is a preset angle, and the foot pad is extended to the maximum lifting height position relative to the system end shell, and the display end part continues to be opened, and the first gear is disengaged at the contact position with the second gear, so that the first connecting shaft can meet the different usage angles of the user during the continuous rotation process, and fully utilize the thickness space in the accommodating cavity, so that the foot pad reaches its maximum lifting height, and also reduces the occupation of the system end part space due to the continuous movement of the sliding member in the second direction (for example, when the sliding member slides in the second direction away from the foot pad, it is necessary to reserve sufficient sliding space for the sliding member in the second direction, or the sliding member will slide out of the system end shell), and the thickness of the system end part and the internal space can be reasonably arranged to achieve the light and thin design and appearance integrity of the foldable electronic device.

[0038] In a possible implementation, the preset angle is less than or equal to the first use angle. This ensures that when the display end portion is opened at the first use angle (which can be understood as the minimum use angle in the comfortable use angle range of the display end portion) and other use angles greater than the first use angle, the foot pad maintains the maximum lifting height position unchanged, and when the display end portion is opened at the preset angle and the foot pad reaches the maximum lifting height position, even if the display end portion continues to be opened, the sliding member remains stationary and will not continue to slide in the second direction, thereby reducing the sliding space reserved for the sliding member in the second direction, and when different users have different comfortable use angles, the foot pad can lift the system end portion to the maximum height position to ensure its heat dissipation performance.

[0039] In a possible implementation manner, in the second direction, the first transmission portion is located at the first end of the sliding member, and the second transmission portion is located at the second end of the sliding member.

[0040] By adopting the above solution, the sliding member has a compact structure and a simple design, which is beneficial to reducing the occupation of the internal space of the accommodating cavity by the transmission mechanism and is beneficial to the lightweight design of the foldable electronic device.

[0041] In a possible implementation, the sliding surface is configured as an inclined plane inclined relative to the first plane, wherein the first plane is perpendicular to the first direction. The foot pad has a matching surface in sliding contact with the sliding surface, wherein the matching surface is configured as an inclined plane inclined relative to the first plane.

[0042] By adopting the above scheme, the inclined sliding surface on the sliding member and the inclined mating surface on the foot pad can increase the contact area between the components and improve the stability of the foot pad support; and both the sliding surface and the mating surface are inclined to the first plane, and the first plane is perpendicular to the first direction. In this way, the displacement in the second direction can be converted into the displacement in the first direction, and the displacement of the foot pad in the first direction can be achieved by rotating the first connecting shaft. The structure is simple and easy to implement.

[0043] In a possible implementation manner, the sliding surface is inclined at an angle of 15° to 85° relative to the first plane.

[0044] In a possible implementation, the second transmission part is configured as a transmission block having a block-shaped structure, the transmission block extending along the first direction and the second direction. The first end of the sliding surface extends to the top of the transmission block in the first direction, the second end of the sliding surface extends to the front end or rear end of the transmission block in the second direction, and the front end of the transmission block is an end of the transmission block in the second direction away from the first transmission part.

[0045] By adopting the above solution, the transmission block can make full use of the thickness space in the accommodating cavity, and can make full use of its thickness to maximize the maximum lifting height of the foot pad, thereby ensuring that the foldable electronic device has sufficient heat dissipation space. In addition, by setting a sliding surface on the transmission block, the movement of the transmission block in the second direction can be converted into the displacement of the foot pad in the first direction through simple structural coordination, which is easy to implement, occupies little space, and can make full use of the space to ensure the lifting height of the foot pad.

[0046] In a possible implementation, the transmission block has an upper top surface and a lower bottom surface arranged opposite to each other in a first direction, and a front end surface and a rear end surface arranged opposite to each other in a second direction. The upper top surface of the transmission block is arranged toward the top of the system end housing, and the lower bottom surface of the transmission block is arranged toward the bottom of the system end housing. The upper top surface of the transmission block constitutes the top of the transmission block, the front end surface constitutes the front end, and the rear end surface constitutes the rear end.

[0047] Wherein, the first end of the sliding surface extends to the upper top surface of the transmission block, and the second end of the sliding surface extends to the front end surface or the rear end surface of the transmission block.

[0048] In a possible implementation, the sliding member includes two second transmission parts, which are spaced apart in the third direction. The sliding surfaces of the two transmission parts are respectively used to contact and slide with two side portions of the foot pad in the third direction, wherein the third direction is parallel to the direction of the first axis.

[0049] By adopting the above solution, there is a larger contact area between the sliding member and the foot pad, which can achieve stable support.

[0050] In a possible implementation, in the third direction, the two second transmission parts are symmetrically arranged relative to the center of the foot pad.

[0051] By adopting the above scheme, the symmetrically arranged second transmission parts can improve the stability of the foot pad during the extension and retraction process, avoid the displacement of the foot pad in the first direction caused by shaking, and help improve the user experience.

[0052] In a possible implementation, the bottom surface of the sliding member is slidably connected to the bottom of the system end housing. The sliding member includes a connecting portion, the connecting portion is connected between the first transmission portion and the second transmission portion, the first transmission portion is located between the bottom of the system end housing and the first rotating member, and the second transmission portion and the connecting portion are located between the bottom and the top of the system end housing.

[0053] When the sliding member includes two second transmission parts, the two second transmission parts and the connecting part together surround and form: a U-shaped groove with an opening facing away from the first transmission part, and at least a part of the foot pad is located in the U-shaped groove.

[0054] With the above solution, the arrangement of the sliding member and the first rotating member fully utilizes the space in the first direction of the accommodating cavity, has a compact layout, and can provide the foot pad with a larger lifting height in a limited space, making the solution more flexible and easy to implement. Furthermore, the sliding member connects the first transmission part with the second transmission part through the connecting part, which can ensure its own structural strength, and the foot pad can be partially located in the U-shaped groove formed by the two second transmission parts and the connecting part, which can reduce the occupation of the internal space of the accommodating cavity by the components, has a compact structure, and can also make the sliding contact between the foot pad and the second transmission part more stable and the sliding smooth.

[0055] In a possible implementation, when the display end portion is in a closed state, the upper surface of the foot pad contacts the top, or there is a first gap between the upper surface of the foot pad and the top, wherein the upper surface of the foot pad is a surface of the foot pad facing the top.

[0056] By adopting the above solution, the thickness space of the system end part can be fully utilized, the moving stroke of the foot pad in the first direction can be increased, and the maximum lifting height of the foot pad (which can be understood as the maximum value of the distance between the lower surface of the foot pad and the bottom surface of the bottom of the system end shell) can be larger. While taking into account the lightweight design of the foldable electronic device, the heat dissipation space is increased to ensure safety and reliability in use.

[0057] In one possible implementation, the foot pad includes a main body and a contact portion. The main body is disposed in a receiving cavity of a system end shell and is telescopically arranged in a through hole along a first direction to extend or retract the system end shell. The contact portion protrudes outward from an outer surface of an end portion of the main body close to the top and is located in the receiving cavity of the system end shell.

[0058] When the display end portion is in a closed state, the contact portion abuts against the first end of the sliding surface; when the display end portion switches from a closed state to an open state, the main body moves along a first direction in the through hole, and the contact portion slides from the first end of the sliding surface to the second end until the foot pad extends to the maximum lifting height position relative to the system end shell, and the contact portion abuts against the second end of the sliding surface and / or the bottom of the system end shell.

[0059] With the above solution, a contact portion abutting against the sliding surface of the sliding member is provided on the foot pad. During the displacement of the foot pad, the contact portion can better cooperate with the displacement of the sliding member in the second direction to achieve smooth sliding of the foot pad in the first direction.

[0060] In a possible implementation, the foot pad further includes a limiting portion, which protrudes outward from an outer surface of an end portion of the main body close to the top and is located in the accommodating cavity of the system end shell.

[0061] When the foot pad is at the maximum lifting height position, the limiting portion abuts against the bottom of the system end shell along the first direction.

[0062] By adopting the above solution, the limiting part on the foot pad can cooperate with the bottom of the system end shell to prevent the foot pad from sliding out of the accommodating cavity as a whole, thereby ensuring stable and convenient use of the foot pad.

[0063] In a possible implementation, the foot pad includes two contact portions, and in the third direction, the two contact portions are symmetrically arranged relative to the body.

[0064] By adopting the above scheme, the two contact parts can contact the sliding surface, increasing the contact area between the foot pad and the sliding part, and the symmetrically arranged contact parts can improve the stability of the foot pad during extension and retraction, ensuring the support stability and reliability of the end part of the foot pad lifting system.

[0065] In a possible implementation, the foot pad includes two limiting portions, and in the second direction, the two limiting portions are symmetrically arranged relative to the body.

[0066] By adopting the above solution, the two symmetrically arranged limit parts can make the sliding of the foot pad in the first direction more stable, reduce or avoid the shaking problem that may occur in the foldable electronic device during the extension of the foot pad, and ensure the user's experience.

[0067] In a possible implementation, the body is configured as a cylindrical structure.

[0068] By adopting the above scheme, the foot pad with an overall cylindrical structure can be better inserted into the through hole at the bottom of the system end shell, making full use of the space, preventing external dirt from entering the accommodating cavity, reducing wear, and making the movement of the foot pad smoother.

[0069] In a possible implementation, the foldable electronic device further includes a first guide structure arranged corresponding to the limiting portion of each foot pad, each first guide structure is arranged in the accommodating cavity, and the limiting portion of the foot pad is slidably connected to the first guide structure along a first direction.

[0070] By adopting the above scheme, the limiting part of the foot pad slides in contact with the first guide structure in the accommodating cavity in the first direction, which can guide the movement of the foot pad in the first direction, reduce or avoid the deviation of the foot pad during the movement in the first direction, improve the structural reliability, and make the lifting process of the foldable electronic device smoother, thereby enhancing the user experience.

[0071] In a possible implementation, the foldable electronic device further includes a second guide structure disposed in the accommodating cavity, and the sliding member is slidably connected to the second guide structure along the second direction.

[0072] By adopting the above structure, the second guide structure can guide the movement of the sliding part in the second direction, reduce or avoid the deviation that may occur during the movement of the sliding part in the second direction, improve the accuracy of the sliding of the sliding part in the second direction, and be conducive to the stable realization of the function of the transmission mechanism and enhance the user experience.

[0073] In a possible implementation, an elastic member is provided between the foot pad and the top of the system end housing. Through the elastic force of the elastic member, the foot pad can be elastically abutted against the transmission mechanism along the first direction when the display end portion is in a closed state, and the foot pad can be elastically abutted against the transmission mechanism and / or the bottom of the system end housing along the first direction when the display end portion is in an open state; when the display end portion switches from the closed state to the open state, the elastic force of the elastic member can push the foot pad to move in the first direction away from the top and gradually extend out of the system end housing.

[0074] When the transmission mechanism includes a sliding member, and the sliding member has a sliding surface: when the display end part is in a closed state, the foot pad is pressed against the sliding surface by the elastic member; when the display end part is in an open state, the foot pad is pressed against the sliding surface and / or the bottom of the system end shell by the elastic member.

[0075] With the above structure, when the sliding member slides in the second direction toward the side away from the foot pad, the area where the second transmission part is located forms a space for the foot pad to move in the first direction. At this time, the elastic force of the elastic member will push the foot pad to move toward the outside of the accommodating cavity, that is, the foot pad is pushed to move along the first direction toward the direction away from the top and gradually extend out of the system end shell, thereby lifting the foldable electronic device, and when the display end part is in an open state, that is, the foot pad is in the process of supporting the foldable electronic device, the foot pad is affected by the elastic force of the elastic member and will not retract into the accommodating cavity, so the support is more stable; and during use, even if it is subjected to external force factors such as bumps, or under the action of gravity of the foldable electronic device, the elastic force generated by the elastic member can also ensure that the foot pad is always in a lifted state, and the foldable electronic device will not be suddenly reset and closed due to the retraction of the foot pad into the accommodating cavity, that is, the elastic member can ensure that the rotation of the first connecting shaft drives the foot pad to lift, and this process is unidirectional.

[0076] When the sliding member slides in the second direction toward the side close to the foot pad, the second transmission part will push the foot pad toward the side of the top of the system end shell (that is, push the foot pad toward the inside of the accommodating cavity), continuously compressing the elastic member to overcome the elastic force of the elastic member. This process can make the foot pad retract slowly and safely, avoiding damage caused by the instantaneous closure of the foldable electronic device, and can also provide users with a good feel to ensure the user's usage experience.

[0077] On the other hand, the stacking design of the foot pad, the elastic member, and the top of the system end shell occupies a relatively compact space in the first direction, which is conducive to the lightweight design of the foldable electronic device.

[0078] In a possible implementation, one end of the elastic member abuts against the foot pad, and the other end abuts against the top.

[0079] In a possible implementation, the upper surface of the foot pad is recessed inward to form a groove; two ends of the elastic member are respectively in contact with the top of the system end shell and the bottom surface of the groove.

[0080] With the above scheme, the elastic member is arranged in the groove. When the display end part is in a closed state, the elastic member can be partially accommodated in the groove, so that the upper surface of the foot pad can be in direct contact with the top of the system end shell or have a smaller gap. Therefore, under the condition that the thickness of the system end shell is certain, it can be ensured that the foot pad has sufficient movement stroke during the movement, thereby increasing the maximum height of the system end part lifted by the foot pad, increasing the heat dissipation space at the bottom of the system end part, and improving the heat dissipation performance of the foldable electronic device.

[0081] In a possible implementation manner, the elastic member is a spring.

[0082] In a possible implementation, the top of the system end shell protrudes inward to form a guide platform, and the elastic member is sleeved on the guide platform.

[0083] By adopting the above solution, the guide platform can reduce or avoid the deviation that may occur during the extension and retraction of the elastic member in the first direction, ensure the accuracy of the foot pad during movement, and enhance the user experience.

[0084] In a possible implementation, when the display end portion is in a closed state, the lower surface of the foot pad is flush with the bottom surface of the bottom portion.

[0085] By adopting the above scheme, when the foldable electronic device is in a folded state, the foot pad is completely retracted and stored in the system end shell and does not protrude from the bottom surface of the bottom of the system end shell, thereby ensuring the appearance integrity of the foldable electronic device. In addition, the foot pad makes full use of the thickness space of the system end shell, which ensures the lifting height of the foot pad and is also conducive to achieving the design requirements of lightness and thinness.

[0086] In a possible implementation, when the display end portion is in an open state and the opening angle is a first use angle, the foot pad extends to a maximum lifting height position relative to the system end housing, and when the opening angle is a second use angle, the foot pad remains at the maximum lifting height position, wherein the second use angle is greater than the first use angle. In this way, it can be ensured that when the opening angle of the display end portion is at the first use angle (the first use angle can be understood as the minimum use angle in the comfortable use angle range of the display end portion, for example, when the comfortable use angle range is 100 degrees-150 degrees, the first use angle is 100 degrees, and when the comfortable use angle range is 110 degrees-150 degrees, the first use angle is 110 degrees, and the embodiment of the present application is not limited to this) and other use angles greater than the first use angle (for example, the second use angle), the foot pad remains at the maximum lifting height position unchanged, so that when the comfortable use angles of different users are different, the foot pad can lift the system end portion to the maximum height position to ensure its heat dissipation performance.

[0087] In a possible implementation, the first direction is parallel to a thickness direction of the system end shell.

[0088] In one possible implementation, the hinge assembly is disposed between the display end first side edge portion of the display end shell and the system end first side edge portion of the system end shell, and the foot pad is disposed at the system end first side edge portion of the system end shell or at a position close to the system end first side edge portion.

[0089] With the above solution, the foot pad and the transmission mechanism for realizing the movement function of the foot pad are arranged relatively compactly and are located relatively close to the shaft assembly inside the accommodating cavity, which is conducive to the lightweight design of the foldable electronic device.

[0090] In one possible implementation, the hinge assembly also includes a display-end fixing member and a system-end fixing member, and the first connecting shaft is arranged between the display-end fixing member and the system-end fixing member so that the display-end fixing member and the first connecting shaft can rotate around a first axis relative to the system-end fixing member, the display-end fixing member is fixedly connected to the display-end shell, and the system-end fixing member is fixedly connected to the system-end shell, so that the display-end shell can rotate around the first axis relative to the system-end shell through the display-end fixing member and the first connecting shaft.

[0091] In a possible implementation, the system end shell includes a first shell and a second shell that are arranged opposite to each other, the first shell and the second shell surround and form a accommodating cavity, the first shell includes the bottom of the system end shell, and the second shell includes the top of the system end shell.

[0092] In a possible implementation, the foldable electronic device includes a plurality of hinge assemblies, and the plurality of hinge assemblies are spaced apart in a direction where the first axis is located.

[0093] The foldable electronic device comprises a plurality of transmission mechanisms and / or a plurality of foot pads. In the direction where the first axis is located, the plurality of foot pads are arranged at intervals, and the plurality of transmission mechanisms are arranged at intervals.

[0094] By adopting the above solution, multiple transmission mechanisms and multiple foot pads are cooperatively arranged near the position where the shaft assembly is located, which can ensure the stability of the foot pads in lifting and supporting the foldable electronic device, thereby improving the user experience.

[0095] In a possible implementation, the foldable electronic device is a laptop computer. BRIEF DESCRIPTION OF THE DRAWINGS

[0096] Figure 1a This is a schematic diagram of the structure of a foldable electronic device in a folded state according to an embodiment of the present application; Figure 1b This is a structural schematic diagram of the foldable electronic device in another viewing angle in the folded state according to an embodiment of the present application; Figure 1c This is a schematic diagram of the side structure of the foldable electronic device in the folded state according to an embodiment of the present application; Figure 2 This is a schematic diagram of the structure of the foldable electronic device in an intermediate state according to an embodiment of the present application; Figure 3a This is a schematic diagram of the structure of a foldable electronic device in an unfolded state according to an embodiment of the present application; Figure 3b This is a structural schematic diagram of another viewing angle of the foldable electronic device in the unfolded state according to an embodiment of the present application; Figure 3cThis is a schematic diagram of the side structure of the foldable electronic device in the embodiment of the present application in the unfolded state; Figure 4 This is a schematic diagram of the top view of the foldable electronic device in the embodiment of the present application in the unfolded state (the second housing has been removed in the figure); Figure 5a This is a schematic diagram of the back structure of the foldable electronic device in the folded state according to an embodiment of the present application; Figure 5b for Figure 5a Schematic diagram of the cross-sectional structure along the middle line AA; Figure 5c This is a schematic cross-sectional view of a partial structure of the foldable electronic device in the folded state where the foot pad cooperates with the sliding member according to an embodiment of the present application; Figure 6a Schematic diagram of the back structure of the foldable electronic device in the embodiment of the present application in the unfolded state, at which time the opening angle of the foldable electronic device is the first use angle; Figure 6b for Figure 6a Schematic diagram of the cross-sectional structure along the middle line BB; Figure 7a is a partial cross-sectional structural diagram of the foldable electronic device in the embodiment of the present application in the unfolded state, at which the opening angle of the foldable electronic device is the second use angle, and Figure 3a The opening angle shown corresponds to that the second use angle is greater than the first use angle; Figure 7b This is a schematic cross-sectional view of a partial structure of the foldable electronic device in the unfolded state where the foot pad cooperates with the sliding member according to an embodiment of the present application; Figure 8 is a schematic diagram of a partial structure of a transmission mechanism during the folding process of the foldable electronic device according to an embodiment of the present application, wherein the opening angle of the foldable electronic device is a second use angle; Figure 9a is a schematic diagram of a partial structure of the foldable electronic device in an embodiment of the present application in an unfolded state, where the opening angle of the foldable electronic device is a second use angle; Figure 9b An exploded view of a local structure of a foldable electronic device in an unfolded state according to an embodiment of the present application; Fig.9c It is a partially enlarged structural diagram of the sliding surface of the foldable electronic device according to the embodiment of the present application, and at this time, the opening angle of the foldable electronic device is smaller than the first use angle; Fig.10a This is a structural principle diagram of another implementation method of the transmission mechanism of the foldable electronic device in the folded state according to an embodiment of the present application; Fig.10bThis is a structural principle diagram of another implementation method of the transmission mechanism of the foldable electronic device in the unfolded state according to an embodiment of the present application; Fig.10c A structural principle diagram of another implementation method of the transmission mechanism of the foldable electronic device in the folded state according to an embodiment of the present application; Fig.10d This is a structural principle diagram of another implementation method of the transmission mechanism of the foldable electronic device in the unfolded state according to the embodiment of the present application; Fig.11a This is a schematic diagram of the three-dimensional structure of a sliding member in a foldable electronic device according to an embodiment of the present application; Fig.11b This is a schematic diagram of the side structure of a sliding member in a foldable electronic device according to an embodiment of the present application; Fig.12a Schematic diagram 1 of a partial structure of the cooperation between the foot pad and the sliding member in the foldable electronic device according to an embodiment of the present application; Figure 12b The local structure diagram of the cooperation between the foot pad and the sliding member in the foldable electronic device of the present application embodiment is shown in FIG. Figure 2 ; Fig.12c This is a third partial structural diagram of the cooperation between the foot pad and the sliding member in the foldable electronic device according to the embodiment of the present application; Fig.12d The local structure diagram of the cooperation between the foot pad and the sliding member in the foldable electronic device of the present application embodiment is shown in FIG. Figure 4 ; Fig.12e Schematic diagram 5 of the partial structure of the cooperation between the foot pad and the sliding member in the foldable electronic device according to the embodiment of the present application; Fig.13 This is a schematic diagram of the local structure of the bottom area of ​​the system end shell of the foldable electronic device according to an embodiment of the present application.

[0097] Description of reference numerals: 1. Foldable electronic devices; 2. Display end portion; 201. First side edge portion of the display end; 21. Display end housing; 22. Display screen; 3. System side part; 31. System end housing; 311. Top; 312. Bottom; 3121. Bottom surface; 313. First side edge of system end; 314. First housing; 315. Second housing; 32. Accommodating cavity; 33. Through hole; 34, foot pad; 341, mating surface; 342, body; 343, contact portion; 344, limiting portion; 345, groove; 3451, groove bottom surface; 346, upper surface; 347, lower surface; 35. mounting seat; 351. second connecting shaft; 36. first guide structure; 361. first guide member; 37. Second guide structure; 371. Second guide member; 38. Guide platform; 4. Shaft assembly; 41. First connecting shaft; 42. Display end fixing member; 421. Display end mounting plate; 422. Display end sleeve; 43. System end fixing member; 431. System end mounting plate; 432. System end sleeve; 44. Circlip; 5. Transmission mechanism; 51. First rotating member; 511. First gear; 52, sliding member; 5201, first end portion; 5202, second end portion; 521, first transmission part; 5211, rack; 522, second transmission part; 523, transmission block; 5231, top; 5231A, upper top surface; 5232, bottom; 5232A, lower bottom surface; 5233, front end; 5234, rear end; 5235, front end surface; 5236, rear end surface; 524, sliding surface; 5241, first end; 5242, second end; 525, connecting portion; 526, U-shaped groove; 53. A second rotating member; 531. A second gear; 6. Elastic member; 7. Support surface; O1, first axis; O2, second axis; X1, third direction; Y1, second direction; Z1, first direction; Z2, thickness direction of the system end shell. DETAILED DESCRIPTION

[0098] With the widespread use of foldable electronic devices (such as laptops), the problem of insufficient internal heat dissipation space has become increasingly prominent. This is because while foldable electronic devices are pursuing a lightweight design, the internal space is constantly compressed. Under the demand for high-performance use, increasingly complex electronic components will occupy a larger layout space, making it difficult for the heat dissipation system to obtain sufficient stacking space for reasonable layout, thereby affecting the heat dissipation performance and reliability of the entire machine. In order to solve this heat dissipation problem, the prior art usually adopts a method of lifting foldable electronic devices, that is, forming a heat dissipation space between its bottom and the placement plane, thereby accelerating air circulation and improving heat dissipation performance. However, most of these solutions rely on external foot pads, which either protrude from the bottom of the device or need to be installed additionally, which not only destroys the integrity of the device's appearance, but also increases the size and weight of the device, which runs counter to the design concept of lightweight and thin, and also reduces the portability of the device. Therefore, how to achieve efficient heat dissipation without sacrificing the simplicity of appearance and lightweight design has become a key issue that needs to be solved in the heat dissipation design of foldable electronic devices.

[0099] In order to solve the above technical problems, the embodiment of the present application provides a foldable electronic device, which is provided with a transmission mechanism that is transmission-connected to the first connecting shaft of the rotating shaft assembly, so that when the foldable electronic device is unfolded or folded, as the rotating shaft assembly rotates, the transmission mechanism drives the foot pad to be lifted and lowered, so that the foot pad can be lifted in the unfolded state, so that a heat dissipation space can be formed between the bottom of the system end shell and the supporting surface (for example, a desktop), and the foot pad can be retracted in the folded state, so that the protrusion of the foot pad relative to the bottom bottom surface of the system end shell can be reduced, and the foot pad can even be prevented from protruding from the bottom bottom surface, thereby reducing or even avoiding the influence of the foot pad on the thickness and appearance of the whole machine in the folded state. Therefore, while improving the heat dissipation performance of the foldable electronic device in the unfolded state, it is possible to ensure the flatness and thinness of the appearance of the whole machine in the folded state.

[0100] The foldable electronic device provided in the embodiment of the present application may be, but is not limited to, a mobile phone, a tablet computer, a laptop computer, a wearable device, a flip-type electronic dictionary, a flip-type handheld game console, a flip-type electronic instrument, and other foldable electronic products. The embodiment of the present application does not impose any special restrictions on the specific form of the above-mentioned foldable electronic device. For the convenience of description, the following description is made by taking a laptop computer as an example.

[0101] The following first describes the basic structure of the foldable electronic device 1.

[0102] See also Figure 1a-Figure 5c , Figure 1a This is a schematic diagram of the structure of a foldable electronic device in a folded state according to an embodiment of the present application. Figure 1b This is a structural schematic diagram of the foldable electronic device in another perspective when it is in a folded state according to an embodiment of the present application. Figure 1c This is a schematic diagram of the side structure of the foldable electronic device in the folded state according to an embodiment of the present application. Figure 2 This is a schematic diagram of the structure of the foldable electronic device in the intermediate state according to an embodiment of the present application. Figure 3a This is a schematic diagram of the structure of a foldable electronic device in an unfolded state according to an embodiment of the present application. Figure 3b This is a schematic structural diagram of another perspective of the foldable electronic device in the unfolded state according to an embodiment of the present application. Figure 3c This is a schematic diagram of the side structure of the foldable electronic device in the embodiment of the present application in the unfolded state. Figure 4 This is a schematic diagram of the top view of the foldable electronic device in the unfolded state according to the embodiment of the present application (the second housing has been removed in the figure). Figure 5a This is a schematic diagram of the back structure of the foldable electronic device in the folded state according to an embodiment of the present application. Figure 5b for Figure 5a Schematic diagram of the cross-section structure along the middle line AA, Figure 5cThis is a schematic cross-sectional view of the local structure of the cooperation between the foot pad and the sliding member when the foldable electronic device according to the embodiment of the present application is in a folded state.

[0103] like Figure 1a , Figure 2 , Figure 3a As shown, the foldable electronic device 1 includes a display end portion 2, a system end portion 3 and a hinge assembly 4. The display end portion 2 is mainly responsible for the display function of images and videos, and is a visual interface for the user to interact with the foldable electronic device 1. The system end portion 3 is the core of the foldable electronic device 1, and is responsible for processing data, running programs and managing hardware resources.

[0104] Furthermore, the hinge assembly 4 is arranged between the display end portion 2 and the system end portion 3, so that the display end portion 2 is rotatably connected to the system end portion 3 through the hinge assembly 4, so that the display end portion 2 and the system end portion 3 can be rotated in opposite directions away from each other to be relatively opened, and can also be rotated in directions close to each other to be relatively closed, that is, the display end portion 2 can switch between an open state and a closed state relative to the system end portion 3, and accordingly, the foldable electronic device 1 can switch between an unfolded state (corresponding to the display end portion 2 being in an open state) and a folded state (corresponding to the display end portion 2 being in a closed state).

[0105] That is to say, in different usage scenarios, the foldable electronic device 1 may have different states. Figure 1a-Figure 1c The foldable electronic device 1 is shown in a folded state. Figure 3a-3c The foldable electronic device 1 is shown in an unfolded state. When the foldable electronic device 1 is in the unfolded state (which can also be understood as the use state), the display end portion 2 is opened at a certain angle relative to the system end portion 3, that is, there is a certain angle between the display end portion 2 and the system end portion 3. At this time, the user can use the foldable electronic device 1 normally. For example, by manipulating the system end portion 3, images and videos can be displayed on the display end portion 2 to interact with the display end portion 2. In a possible implementation, when the foldable electronic device 1 is in the unfolded state, the angle α between the display end portion 2 and the system end portion 3 (the angle can also be understood as the opening angle of the foldable electronic device 1, or the opening angle of the display end portion 2 mentioned below) is greater than 90° and less than 180°. Figure 2 The foldable electronic device 1 is also shown in an intermediate state between the folded state and the unfolded state.

[0106] It can be understood by those skilled in the art that the opening angle of the foldable electronic device 1 can be adjusted according to the needs of the user, that is, the display end part 2 can be suspended at any angle relative to the system end part 3. For example, when the foldable electronic device 1 is in the unfolded state, the opening angle of the foldable electronic device 1 can be 130°, 120°, 110°, 100°, 90°, etc., and the embodiment of the present application does not limit this. When the display end part 2 rotates relative to the system end part 3 to the point where it cannot continue to rotate, the foldable electronic device 1 is in a fully unfolded state. The opening angle of the foldable electronic device 1 in the fully unfolded state depends on the structure of the rotating shaft assembly 4, the structure of the foldable electronic device 1 itself, etc. The specific opening angle of the fully unfolded state is not limited, and can be 150°, 160°, 170°, etc., and the present application does not limit this. In addition, the angles illustrated in the embodiments of the present application are all allowed to have a slight deviation. For example, when the foldable electronic device 1 is in the fully unfolded state, its opening angle can be 150°, or about 150°, such as 151°, 149°, etc., and the same understanding can be made for other angles in the following text. When the foldable electronic device 1 is in a folded state, the angle between its display end portion 2 and the system end portion 3 can be approximately regarded as 0°. At this time, the display end portion 2 and the system end portion 3 can be stacked in the thickness direction of the system end portion 3, and the thickness direction of the display end portion 2 is parallel to or approximately parallel to the thickness direction of the system end portion 3, and the thickness direction of the foldable electronic device 1 is parallel to or approximately parallel to the thickness direction of the system end portion 3.

[0107] It should be noted that the specific structure of the display end portion 2 is not limited. In a possible implementation, Figure 3a As shown, the display end portion 2 includes a display end housing 21 and a display screen 22 fixedly mounted on the display end housing 21. Specifically, the display screen 22 is used to display images, and the display screen 22 can be, but is not limited to, an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode or an active-matrix organic light-emitting diode (AMOLED) display screen or a quantum dot light-emitting diode (QLED) display screen, etc. The embodiment of the present application does not limit the type and specific structure of the display screen 22.

[0108] Furthermore, the display end housing 21 is mainly used to protect the internal display screen 22 and other sensitive devices, and prevent the display screen 22 from being damaged by external impact, dust, liquid, etc. It should be noted that the embodiment of the present application does not limit the specific structure of the display end housing 21, and those skilled in the art can reasonably set it according to actual needs. In a possible implementation, the display end housing 21 includes a top cover and a frame. The top cover is the outermost cover of the display end part 2, which can protect the display screen 22 and the installation stability of the internal devices. The frame is the frame part around the display screen 22, which mainly plays the role of fixing the display screen 22 and protecting the edge of the display screen 22.

[0109] It should be noted that the present application does not limit the material of the display end shell 21, which is usually made of magnesium-aluminum alloy, carbon fiber composite material or high-strength plastic (such as polycarbonate + acrylonitrile-butadiene-styrene copolymer), which is light, strong and has good heat dissipation performance.

[0110] It should be noted that the specific structure of the system end part 3 is not limited. In a possible implementation, Figure 3a and Figure 5b As shown, the system end portion 3 includes a system end housing 31 and electronic components (not shown in the figure) installed in the system end portion 3. Specifically, the system end housing 31 is surrounded by a receiving cavity 32, and includes a top 311 and a bottom 312 that are relatively spaced apart along the thickness direction Z2 thereof, wherein different electronic components can be arranged in the receiving cavity 32, and the embodiment of the present application does not limit the specific layout of the components in the receiving cavity 32.

[0111] It should be noted that the bottom 312 of the system end shell 31 can be understood as the part of the system end shell 31 facing the support surface 7 (i.e., the plane on which the foldable electronic device 1 is placed, such as a countertop, tabletop, etc.) during use, and can also be understood as the part of the system end shell 31 in the foldable electronic device 1 in the folded state that is away from the display screen 22, and the top 311 can be understood as the part of the system end shell 31 in the foldable electronic device 1 in the folded state that is facing the display screen 22.

[0112] Furthermore, the specific structure and type of the electronic components are not limited. In one example, a motherboard stack assembly can be arranged in the accommodating cavity 32 of the system end housing 31, and the motherboard stack assembly can be understood as a functional device in the system end part 3, for example, it can include a battery, a host, a fan, a heat sink, a microphone, an antenna, etc., and the embodiment of the present application does not limit this.

[0113] The specific form of the host in the system end part 3 is not limited, for example, it can be an integrated system including processing modules such as memory, power supply, optical drive, processor (Central Processing Unit, CPU). The processor can realize functions such as running the operating system, processing various data, running applications and controlling multiple hardware connected to the processor. The keyboard, touchpad, mouse and other hardware can be electrically connected to the processor, and the user's operation information can be sent to the processor, and the processor can issue corresponding instructions after analysis and calculation.

[0114] Furthermore, the top 311 of the system end portion 3 can be used to install components such as a keyboard and a touch pad to interact with the display screen 22 of the foldable electronic device 1.

[0115] Furthermore, the host is electrically connected to the touchpad. When the user slides, presses, or performs other operations on the touchpad, the touchpad sends touch signals to the host according to the user's operations. The host identifies and analyzes the received signals and issues corresponding instructions to complete related operations and map the operation interface to the display.

[0116] like Figure 3b , Figure 4 , Figure 5b As shown, in a possible implementation, the system end housing 31 includes a first housing 314 and a second housing 315 that are arranged opposite to each other. The first housing 314 and the second housing 315 surround and form a receiving chamber 32. The first housing 314 includes a bottom 312 of the system end housing 31 (or it can be understood that at least part of the first housing 314 is used as the bottom 312 of the system end housing 31), and the second housing 315 includes a top 311 of the system end housing 31 (or it can be understood that at least part of the second housing 315 is used as the top 311 of the system end housing 31). It should be noted that the specific shapes of the first housing 314 and the second housing 315 are not limited. In one example, the first housing 314 is a groove-shaped structure, and the second housing 315 is a groove-shaped structure; in another example, the first housing 314 is a box structure, and the second housing 315 is a plate-shaped structure; in another example, the first housing 314 is a groove-shaped structure, and the second housing 315 is a plate-shaped structure.

[0117] It can be understood that the display end portion 2 and the system end portion 3 of the foldable electronic device 1 are rotatably connected via the hinge assembly 4, thereby realizing the opening and closing process. Figure 3b-Figure 5bAs shown, the hinge assembly 4 is disposed between the display end housing 21 and the system end housing 31, so that the display end housing 21 is rotatably connected to the system end housing 31 through the hinge assembly 4, so that the display end housing 21 can rotate relative to the system end housing 31 around the first axis O1. It can be understood that, by rotatably connecting the display end housing 21 and the system end housing 31 with the hinge assembly 4, the display end portion 2 is rotatably connected to the system end portion 3, and the display end portion 2 can switch between a closed state and an open state relative to the system end portion 3, thereby switching the foldable electronic device 1 between a folded state and an unfolded state.

[0118] It should be noted that when the display end housing 21 is in a closed state relative to the system end housing 31, the display end portion 2 is in a closed state relative to the system end portion 3, and when the display end housing 21 is in an open state relative to the system end housing 31, the display end portion 2 is in an open state relative to the system end portion 3. In other words, the angle at which the display end housing 21 is opened relative to the system end housing 31 corresponds to the angle at which the display end portion 2 is opened relative to the system end portion 3.

[0119] It is understandable that the number of the rotating shaft components 4 in the foldable electronic device 1 is not limited, and can be 1, 2, 3, etc. In a possible implementation, Figure 4 As shown, the foldable electronic device 1 includes a plurality of hinge assemblies 4, for example, 2, 3, etc., and the plurality of hinge assemblies 4 are arranged at intervals in the direction where the first axis O1 is located. In addition, the plurality of hinge assemblies 4 rotate synchronously to realize the relative rotation between the display end housing 21 and the system end housing 31. In one example, there are two hinge assemblies 4, and the two hinge assemblies 4 are symmetrically arranged in the direction where the first axis O1 is located. In other examples, the two hinge assemblies 4 may also be asymmetrically arranged in the direction where the first axis O1 is located. It should be noted that the structures of the hinge assemblies 4 may be the same or different. The following mainly uses the structure of one hinge assembly 4 as an example for explanation. It can be understood that the components of other hinge assemblies 4 may also adopt this structure.

[0120] Furthermore, the layout position of the rotating shaft assembly 4 is not limited. Figure 3c and Figure 4 As shown, in a possible implementation, the hinge assembly 4 is disposed between the display-end first side edge portion 201 of the display-end housing 21 and the system-end first side edge portion 313 of the system-end housing 31 .

[0121] When the display end part 2 switches from a closed state to an open state relative to the system end part 3, the distance between the second side edge portion (not shown in the figure) of the display end shell 21 and the second side edge portion (not shown in the figure) of the system end shell 31 gradually increases; when the display end part 2 switches from an open state to a closed state relative to the system end part 3, the distance between the second side edge portion (not shown in the figure) of the display end shell 21 and the second side edge portion (not shown in the figure) of the system end shell 31 gradually decreases.

[0122] The display-end first side edge portion 201 of the display-end housing 21 can be understood as a side edge portion of the display-end housing 21 connected to the system-end housing 31, and the second side edge portion of the display-end housing 21 can be understood as a side edge portion of the display-end housing 21 away from the display-end first side edge portion 201. Correspondingly, the system-end first side edge portion 313 of the system-end housing 31 can be understood as a side edge portion of the system-end housing 31 connected to the display-end housing 21, and the second side edge portion of the system-end housing 31 can be understood as a side edge portion of the system-end housing 31 away from the system-end first side edge portion 313.

[0123] Furthermore, the specific structure of the shaft assembly 4 is not limited. Figure 4 , Figure 5b and Figure 5c As shown, the rotating shaft assembly 4 includes a first connecting shaft 41, and the first connecting shaft 41 is arranged between the display end housing 21 and the system end housing 31, so that the display end housing 21 and the first connecting shaft 41 can rotate relative to the system end housing 31 around the first axis O1, so that the display end part 2 can switch between a closed state and an open state relative to the system end part 3. Among them, the first axis O1 can be the position where the axis center of the first connecting shaft 41 is located. It should be noted that the first connecting shaft 41 is fixed relative to the display end housing 21 along its circumference, that is, there is no relative rotation between the first connecting shaft 41 and the display end housing 21. The first connecting shaft 41 can be understood as an axis extending in the direction of the first axis O1, which can be a solid shaft or a hollow shaft, and the embodiment of the present application is not limited to this.

[0124] That is to say, the display end shell 21 can be rotated relative to the system end shell 31 through the first connecting shaft 41 of the hinge assembly 4, so that the display end shell 21 and the first connecting shaft 41 rotate relative to the system end shell 31, so that the display end shell 21 can switch between a closed state and an open state relative to the system end shell 31, and then the display end part 2 can switch between a closed state and an open state relative to the system end part 3, and the foldable electronic device 1 can switch between a folded state and an unfolded state, and the user can choose different usage angles in the unfolded state according to different usage requirements. The angle is flexible to ensure the user's usage experience.

[0125] like Figure 4 , Figure 5b-Figure 5c As shown, in a possible implementation, the hinge assembly 4 may also include a display-end fixing member 42 and a system-end fixing member 43, and the first connecting shaft 41 is arranged between the display-end fixing member 42 and the system-end fixing member 43, so that the display-end fixing member 42 and the first connecting shaft 41 can rotate around the first axis O1 relative to the system-end fixing member 43, the display-end fixing member 42 is fixedly connected to the display-end shell 21, and the system-end fixing member 43 is fixedly connected to the system-end shell 31, so that the display-end shell 21 can rotate around the first axis O1 relative to the system-end shell 31 through the display-end fixing member 42 and the first connecting shaft 41.

[0126] When the display end shell 21 is subjected to external force (the force applied by the user when rotating the display end part 2), the display end shell 21 transmits the force to the display end fixing part 42, driving the first connecting shaft 41 to rotate, so that the display end part 2 can rotate as a whole relative to the system end part 3 around the first axis O1, thereby realizing the hovering of the display end part 2 at any angle to meet the usage requirements of different users.

[0127] It can be understood that the first connecting shaft 41 is fixed relative to the display end fixing piece 42 along its circumference, that is, no relative rotation will occur between the first connecting shaft 41 and the display end fixing piece 42, because the display end fixing piece 42 is fixedly connected to the display end shell 21, and thus, no relative rotation will occur between the first connecting shaft 41, the display end fixing piece 42 and the display end shell 21.

[0128] It should be noted that the fixed connection method between the display terminal fixing member 42 and the display terminal housing 21 is not limited, and the two can be fixed by a detachable connection method or a non-detachable connection method. Correspondingly, the fixed connection method between the system terminal fixing member 43 and the system terminal housing 31 is not limited, and the two can be fixed by a detachable connection method or a non-detachable connection method. Among them, the above-mentioned detachable connection method can be screw connection, clamping, etc., and the non-detachable connection method can be welding, etc., which is not limited in the embodiment of the present application.

[0129] Furthermore, the layout positions of the system-side fixing member 43 and the display-side fixing member 42 are not limited. Figure 4 , Figure 5b-Figure 5cAs shown, in a possible implementation, the display end fixing member 42 is fixed to the display end first side edge portion 201 of the display end housing 21, for example, the display end fixing member 42 is fixed to the top cover in the display end first side edge portion 201. The system end fixing member 43 is fixed to the system end first side edge portion 313 of the system end housing 31, for example, the system end fixing member 43 is fixed to the first housing 314 in the system end first side edge portion 313.

[0130] Furthermore, the number and layout positions of the first connecting shafts 41 in the rotating shaft assembly 4 are not limited. Figure 4 As shown, in a possible implementation, a first connection shaft 41 is provided between the display-end fixing member 42 and the system-end fixing member 43. In other possible implementations, a plurality of first connection shafts 41 located on the same straight line may also be provided between the display-end fixing member 42 and the system-end fixing member 43. For example, two first connection shafts 41 located on the same straight line are provided between the display-end fixing member 42 and the system-end fixing member 43, and the straight line is located in the direction of the first axis O1. This embodiment of the present application does not limit this.

[0131] It should be noted that, when there are multiple rotating shaft assemblies 4, the display end fixing members 42 of adjacent rotating shaft assemblies 4 may be an integrated structure (see Figure 4 The structure shown in FIG. 1 may also be a split structure. The system end fixing members 43 of adjacent rotating shaft assemblies 4 may be an integrated structure or a split structure (see FIG. 1 ). Figure 4 structure shown).

[0132] Furthermore, the specific structure of the display-end fixing member 42 is not limited, and the specific structure of the system-end fixing member 43 is not limited. Figure 4 , Figure 5b , Figure 9b As shown, in a possible implementation, the display end fixing member 42 may include a display end mounting plate 421 and a display end sleeve 422 connected to one side of the display end mounting plate 421, and the display end mounting plate 421 is fixedly connected to the display end housing 21. The system end fixing member 43 may include a system end mounting plate 431 and a system end sleeve 432 connected to one side of the system end mounting plate 431, and the system end mounting plate 431 is fixedly connected to the system end housing 31. The first connecting shaft 41 is passed through the display end sleeve 422 and the system end sleeve 432, and the first connecting shaft 41 is fixed relative to the display end sleeve 422 along its circumference, and can rotate relative to the system end sleeve 432 along its circumference, so that the first connecting shaft 41 can rotate relative to the system end sleeve 432 around the first axis O1, so that the display end fixing member 42 and the first connecting shaft 41 can rotate relative to the system end sleeve 432 around the first axis O1.

[0133] Furthermore, the display-end mounting plate 421 and the display-end sleeve 422 may be an integrated structure or a split structure that is fixedly and detachably connected; the system-end mounting plate 431 and the system-end sleeve 432 may be an integrated structure or a split structure that is fixedly and detachably connected. The structural composition between the display-end mounting plate 421 and the display-end sleeve 422 and the structural composition between the system-end mounting plate 431 and the system-end sleeve 432 may be the same or different.

[0134] In a possible implementation, the shaft assembly 4 further includes a retaining spring 44 (see Figure 9a and Figure 9b ), the retaining spring 44 is arranged on the side of the system-end fixing part 43 away from the display-end fixing part 42, and is sleeved on the first connecting shaft 41. In this way, the retaining spring 44 can limit the movement of the first connecting shaft 41 relative to the system-end fixing part 43 in its axial direction, avoiding the shaking that may occur during the opening or closing process of the display-end shell 21, thereby ensuring the user's experience.

[0135] The above mainly introduces the basic structure of the foldable electronic device 1 in detail. It is understandable that as the performance of the foldable electronic device 1 continues to improve, higher-performance electronic components are integrated inside it, which significantly increases the heat generated by the foldable electronic device 1 during operation (especially the system end part 3), thereby placing higher requirements on the heat dissipation performance of the whole device. However, in order to meet consumers' pursuit of portability and aesthetics, the design trend of the foldable electronic device 1 tends to be thinner and lighter, which makes traditional heat dissipation solutions, such as adding heat channels and cooling fans, difficult to implement in a limited space.

[0136] Therefore, some technologies optimize the heat dissipation effect by changing the placement angle of the device, that is, by raising the foldable electronic device 1 (forming a certain angle between the device and the support surface 7), an additional heat dissipation space is created between the bottom 312 of the device and the support surface 7, accelerating air circulation, increasing the heat exchange rate, and thus enhancing the heat dissipation capacity of the entire device. One of the common heat dissipation optimization methods is to set a foot pad 34 at the bottom 312 of the device to raise the device and form a heat dissipation space. However, the design of adding a foot pad 34 will increase the overall thickness and volume of the device, which is not conducive to the storage and portability of the device, and will also destroy the exquisite appearance of the foldable electronic device 1.

[0137] Based on this, an embodiment of the present application provides a foldable electronic device 1, which, through a transmission mechanism 5 arranged between the hinge assembly 4 and the foot pad 34, enables the foot pad 34 to stably support the system end part 3 in a raised state and to be stored in the accommodating cavity 32 of the system end part 3 in a retracted state. While improving the heat dissipation performance of the whole machine in the unfolded state, it ensures the flatness of the appearance and the thin and light design of the whole machine in the folded state.

[0138] The following will explain in detail the structural principle of the foot pad 34 to achieve retraction and extension and lifting in conjunction with the accompanying drawings.

[0139] See also Figure 6a-Figure 7b , Figure 6a This is a schematic diagram of the back structure of the foldable electronic device in the embodiment of the present application in the unfolded state, at which time the opening angle of the foldable electronic device is the first usage angle. Figure 6b for Figure 6a Schematic diagram of the cross-sectional structure along BB. Figure 7a is a partial cross-sectional structural diagram of the foldable electronic device in the embodiment of the present application in the unfolded state, at which the opening angle of the foldable electronic device is the second use angle, and Figure 3a The opening angle shown corresponds to the second use angle being greater than the first use angle. Figure 7b This is a schematic cross-sectional view of the local structure of the cooperation between the foot pad and the sliding member when the foldable electronic device according to the embodiment of the present application is in the unfolded state.

[0140] like Figure 5b As shown, the foldable electronic device 1 further includes a foot pad 34 and a transmission mechanism 5, which are arranged in the accommodating cavity 32 of the system end housing 31. A through hole 33 is provided at the bottom 312 of the system end housing 31, one end of the through hole 33 is connected to the accommodating cavity 32, and the other end extends to the bottom surface 3121 of the bottom 312, and the foot pad 34 is telescopically arranged in the through hole 33 along the first direction Z1 to extend or retract the system end housing 31.

[0141] In order to facilitate the understanding of each direction, the first direction Z1 and the second direction Y1 and the third direction X1 mentioned below are uniformly explained here. It can be understood that the first direction Z1, the second direction Y1 and the third direction X1 can be understood as three directions perpendicular to each other, that is, any two directions are perpendicular to each other. Among them, the first direction Z1 can be parallel to the thickness direction of the foldable electronic device 1 in the folded state, or it can be parallel to the thickness direction Z2 of the system end shell (or inclined at a certain angle relative to the thickness direction Z2 of the system end shell), the second direction Y1 can be perpendicular to the thickness direction Z2 of the system end shell, or it can be perpendicular to the direction where the first axis O1 is located, and the third direction X1 can be understood as the direction where the first axis O1 is located, or it can be the length direction of the foldable electronic device 1, and the embodiment of the present application does not limit this.

[0142] like Figure 5b , Figure 6b and Figure 7aAs shown, the transmission mechanism 5 is disposed between the first connecting shaft 41 and the foot pad 34. In response to the rotation of the first connecting shaft 41 relative to the system end housing 31, the transmission mechanism 5 can drive the foot pad 34 to move relative to the system end housing 31 along the first direction Z1. The transmission mechanism 5 can convert the rotational movement of the first connecting shaft 41 into the displacement of the foot pad 34 in the first direction Z1, so that the foot pad 34 can automatically support and lift according to the state of the foldable electronic device 1, so that an additional heat dissipation space is formed between the bottom surface 3121 of the bottom 312 of the system end housing 31 and the support surface 7, thereby improving the heat dissipation performance. In other words, the foot pad 34 is telescopically arranged in the through hole 33 of the bottom 312 of the system end housing 31 in the first direction Z1, and the transmission mechanism 5 is driven by the rotation of the first connecting shaft 41, so that the foot pad 34 can move along the first direction Z1 to extend or retract the system end housing 31.

[0143] Specifically, Figure 5a-5c , Figure 6a-Figure 6b , Figure 7a and Figure 7b As shown, the display end portion 2 is changed from a closed state (such as Figure 5b and Figure 5c position) to an open position (e.g. Figure 6b Position as shown or Figure 7a When the foldable electronic device 1 is unfolded, the transmission mechanism 5 can be driven by the rotation of the first connecting shaft 41 to link the foot pad 34 from Figure 5b and Figure 5c The position shown in FIG. 1 moves along the first direction Z1 toward the direction away from the top 311 of the system end housing 31, and gradually extends out of the system end housing 31 (for example, as shown in FIG. 1 ). Figure 6b Position as shown or Figure 7a The position shown in the figure) can be understood as follows: the lower surface 347 of the foot pad 34 (i.e., a surface of the foot pad 34 facing away from the top 311 of the system-end shell 31) gradually protrudes from the bottom surface 3121 of the bottom 312 of the system-end shell 31, and the distance between the lower surface 347 of the foot pad 34 and the bottom surface 3121 of the bottom 312 of the system-end shell 31 gradually increases, so that when the display end part 2 is in the open state, the lower surface 347 of the foot pad 34 protrudes from the bottom surface 3121 of the bottom 312 of the system-end shell 31 by a certain height, so that when the lower surface 347 of the foot pad 34 contacts the support surface 7 (i.e., the plane on which it is placed, such as a countertop, a tabletop, etc.), the system-end shell 31 is lifted relative to the support surface 7, that is, the system-end shell 31 is lifted by a certain height, so that the space formed between the system-end shell 31 after being lifted and the support surface 7 can serve as a heat dissipation space, accelerate the air circulation of the bottom 312 of the system-end shell 31, improve the heat dissipation efficiency, and improve its reliability and safety in use.

[0144] It can be understood that, under the transmission action of the transmission mechanism 5, the rotation of the first connecting shaft 41 around the first axis O1 is converted into the extension and retraction of the foot pad 34 in the first direction Z1. This process is achieved spontaneously without the need to set up other power sources.

[0145] Furthermore, if Figure 5b , Figure 6a-Figure 7b As shown, when the display end portion 2 switches from the open state to the closed state (for example, from Figure 6b The position shown is Figure 5b When switching from the position shown, or Figure 7a The position shown is Figure 5b When the position is switched as shown in FIG. 1 ), driven by the first connecting shaft 41, the transmission mechanism 5 links the foot pad 34 (for example, from Figure 6b or Figure 7a The position shown in the figure) moves along the first direction Z1 toward the direction close to the top 311, and gradually retracts the system end housing 31 (for example, as shown in the figure). Figure 5b shown in the position).

[0146] That is to say, in the process of the foldable electronic device 1 being unfolded and folded, the foot pad 34 gradually retracts into the accommodating cavity 32 of the system-end shell 31, and in the folded state, the lower surface 347 of the foot pad 34 (which can be understood as a surface of the foot pad 34 facing away from the top 311 of the system-end shell 31) protrudes less than the bottom surface 3121 of the bottom 312 of the system-end shell 31, and will not occupy too much external space. Alternatively, in the folded state, the lower surface 347 of the foot pad 34 may not protrude from the bottom surface 3121 of the bottom 312 of the system-end shell 31, and may not even occupy external space, which has little impact on the appearance of the foldable electronic device 1. Furthermore, the foot pad 34 can make full use of the thickness space in the accommodating cavity 32, and realize the retraction and storage as well as the extension and lifting functions of the foot pad 34 without increasing the thickness of the system-end shell 31, which can take into account the thickness of the entire machine and is conducive to the lightweight design of the foldable electronic device 1.

[0147] Furthermore, the extension and retraction of the foot pad 34 in the accommodating cavity 32 in the first direction Z1 is achieved by the rotation drive of the first connecting shaft 41 during the folding or unfolding process of the foldable electronic device 1 itself, without the need to set up other complex active mechanisms, and the structure is simple. In addition, the foot pad 34 is linked to the transmission mechanism 5 to achieve the lifting of the system end part 3. The transmission mechanism 5 and the foot pad 34 can be designed as reliable and small-volume components, which are easy to arrange and install in a limited space, so that they will not occupy too much arrangement space inside the foldable electronic device 1, which is conducive to the lightweight design of the electronic device.

[0148] In simple terms, the transmission mechanism 5 can convert the rotation of the first connecting axis 41 in the foldable electronic device 1 into the extension and retraction of the foot pad 34 in the first direction Z1, thereby realizing the function of the foot pad 34 lifting the system end part 3, that is, when the foldable electronic device 1 is unfolded, the lower surface 347 of the foot pad 34 can automatically and slowly protrude from the bottom surface 3121 of the bottom 312 of the system end shell 31 to ensure stable support. When the foldable electronic device 1 is folded, at least part of the foot pad 34 will automatically retract and be stored in the accommodating cavity 32, so that the foldable electronic device 1 has additional heat dissipation space in the unfolded state, and there is no need to install other non-retractable foot pads 34 designs. While ensuring the exquisite appearance and lightweight design of the foldable electronic device 1 in the folded state, the heat dissipation space can be increased in the unfolded state.

[0149] On the other hand, the foot pad 34 can also lift the foldable electronic device 1 to a certain angle while supporting it, making keyboard operation more natural and comfortable, thereby improving the user experience. At the same time, the foot pad 34 has an anti-slip function, which can provide more stable support for the foldable electronic device 1.

[0150] In summary, the foldable electronic device 1 provided in the embodiment of the present application can improve the heat dissipation performance while ensuring the flatness of the appearance and the thin and light design.

[0151] In one possible implementation, Figure 5b As shown, when the display end portion 2 is in a closed state, the lower surface 347 of the foot pad 34 (which can be understood as a surface of the foot pad 34 facing away from the top 311) is flush with the bottom surface 3121 of the bottom 312. In this way, when the foldable electronic device 1 is in a folded state, the foot pad 34 is completely retracted and stored in the system end housing 31, and will not protrude from the bottom surface 3121 of the bottom 312 of the system end housing 31, thereby ensuring the integrity of the appearance of the foldable electronic device 1. In addition, the foot pad 34 fully utilizes the thickness space of the system end housing 31, ensuring the lifting height of the foot pad 34, and is also conducive to achieving the design requirements of lightness and thinness.

[0152] In other possible implementations, when the display end portion 2 is in a closed state, the lower surface 347 of the foot pad 34 may not be flush with the bottom surface 3121 of the bottom 312, and the embodiment of the present application is not limited to this. In one example, the lower surface 347 of the foot pad 34 slightly protrudes from the bottom surface 3121 of the bottom 312 of the system end housing 31. At this time, the foot pad 34 has a higher lifting height, which is conducive to improving the heat dissipation capacity of the system. In another example, the lower surface 347 of the foot pad 34 may also be located inside the system end housing 31.

[0153] In one possible implementation, Figure 6a and Figure 6bAs shown, when the display end portion 2 is in an open state and the opening angle is a first use angle, the foot pad 34 extends to a maximum lifting height position relative to the system end housing 31. When the display end portion 2 continues to be opened, for example, the opening angle is a second use angle (see Figure 7a to Figure 7b ), the foot pad 34 remains at the maximum lifting height position, wherein the second use angle is greater than the first use angle. In this way, it can be ensured that when the display end part 2 is opened at the first use angle and other use angles greater than the first use angle (for example, the second use angle), the foot pad 34 remains at the maximum lifting height position unchanged. In this way, when different users have different comfortable use angles, the foot pad 34 can lift the system end part 3 to the maximum height position to ensure its heat dissipation performance.

[0154] Among them, the first usage angle can be understood as the minimum usage angle in the comfortable usage angle range of the display end part 2. The specific angle value is not limited and can be reasonably set according to actual needs. For example, when the comfortable usage angle range is 100 degrees-150 degrees, the first usage angle is 100 degrees. When the comfortable usage angle range is 110 degrees-150 degrees, the first usage angle is 110 degrees. The embodiment of the present application does not limit this.

[0155] In other possible implementations, when the display end portion 2 is in an open state and the opening angle is a first use angle (eg Figure 6a and Figure 6b The foot pad 34 may not be extended to the maximum lifting height relative to the system end shell 31, that is, the display end portion 2 continues to be opened, and the foot pad 34 may continue to extend outward relative to the system end shell 31, and the embodiment of the present application does not limit this.

[0156] It should be noted that the embodiment of the present application does not limit the number of foot pads 34 and transmission mechanisms 5. For example, there can be one or more. In a possible implementation, the foldable electronic device 1 includes multiple transmission mechanisms 5 and multiple foot pads 34. In the direction of the first axis O1 (i.e., the third direction X1), multiple foot pads 34 are arranged at intervals, and multiple transmission mechanisms 5 are arranged at intervals. In this way, multiple transmission mechanisms 5 and multiple foot pads 34 are arranged in cooperation at a position close to the rotating shaft assembly 4, which can ensure that the foot pads 34 lift and support the stability of the foldable electronic device 1, thereby improving the user experience.

[0157] In an example, Figure 4As shown, the foldable electronic device 1 includes two foot pads 34 symmetrically arranged in the third direction X1. Correspondingly, the foldable electronic device 1 includes two transmission mechanisms 5 symmetrically arranged in the third direction X1. The transmission mechanisms 5 are arranged in a one-to-one correspondence with the foot pads 34, which can ensure the transmission efficiency and the synchronization during the lifting process of the foot pads 34 to avoid shaking, etc.

[0158] In another example, the foldable electronic device 1 includes two foot pads 34 symmetrically arranged in the third direction X1, and each foot pad 34 can also realize the lifting function of the foot pad 34 through two transmission mechanisms 5, wherein the specific structure of the transmission mechanism 5 will be described later in conjunction with the drawings.

[0159] It should be noted that the present embodiment of the application does not limit the layout position of the foot pad 34. In a possible implementation, the foot pad 34 is arranged at the first side edge portion 313 of the system end housing 31. In this way, the foot pad 34 and the transmission mechanism 5 that realizes the movement function of the foot pad 34 are located in the accommodating cavity 32 at a position closer to the shaft assembly 4, and the arrangement is relatively compact, which is conducive to the lightweight design of the foldable electronic device 1. It can be understood that the transmission mechanism 5 can be reasonably arranged according to the specific position of the foot pad 34, and the present embodiment of the application does not limit this.

[0160] In other possible implementations, the foot pad 34 is arranged at a position close to the first side edge portion 313 of the system end. At this time, the foot pad 34 can receive the transmission of the first connecting shaft 41 at a relatively close distance, thereby achieving a rapid response of the lifting of the foot pad 34, and can also reserve sufficient layout space for the hinge assembly 4 and its related components to avoid interference, thereby improving the overall reliability of the foldable electronic device 1.

[0161] Furthermore, the embodiment of the present application does not limit the height of the foot pad 34. In a possible implementation, Figure 5b and Figure 5c As shown, when the display end portion 2 is in a closed state, the upper surface 346 of the foot pad 34 (which can be understood as a surface of the foot pad 34 facing the top 311) is in contact with the top 311. At this time, the foot pad 34 makes full use of the thickness space in the accommodating cavity 32, and can increase the moving stroke of the foot pad 34 in the first direction Z1, so that the maximum lifting height of the foot pad 34 is larger, while taking into account the lightweight design of the foldable electronic device 1, the heat dissipation space is increased to ensure safety and reliability in use.

[0162] In other possible implementations, when the display end portion 2 is in a closed state, there may also be a first gap between the upper surface 346 of the foot pad 34 and the top 311, that is, the upper surface 346 of the foot pad 34 is not in contact with the top 311 of the system end housing 31. It should be noted that the embodiment of the present application does not limit the specific value of the first gap, and those skilled in the art may consider and set it according to factors such as the lifting height of the foot pad 34. It should be noted that the smaller the first gap, the greater the maximum lifting height of the foot pad 34.

[0163] It can be understood that, in the scheme of using the retractable foot pad 34 to achieve the lifting and support of the foldable electronic device 1, in order to take into account the design requirements of both exquisite appearance and lightweight design, the lifting height of the foot pad 34 is limited by the thickness of the system-end shell 31, and can also be understood as being limited by the specific height of the accommodating cavity 32 of the system-end part 3, that is, the foot pad 34 can make full use of the thickness of the system-end shell 31, so that the foot pad 34 reaches the maximum lifting height when the foldable electronic device 1 is used at a comfortable angle for the user, thereby ensuring the user experience and the heat dissipation performance of the foldable electronic device 1.

[0164] The above mainly introduces the extension and retraction process of the foot pad 34 in detail, and the specific structure of the transmission mechanism 5 will be described in detail below with reference to the accompanying drawings.

[0165] See also Figure 8-10d , Figure 8 This is a schematic diagram of the partial structure of the transmission mechanism during the folding process of the foldable electronic device according to an embodiment of the present application. At this time, the opening angle of the foldable electronic device is the second usage angle. Figure 9a : is a partial structural diagram of the foldable electronic device in the embodiment of the present application in the unfolded state, at which the opening angle of the foldable electronic device is the second use angle. Figure 9b This is an exploded view of the local structure of the foldable electronic device in the embodiment of the present application in the unfolded state. Fig.9c It is a partially enlarged structural diagram of the sliding surface of the foldable electronic device according to an embodiment of the present application. At this time, the opening angle of the foldable electronic device is smaller than the first usage angle. Fig.10a This is a structural principle diagram of another implementation method of the transmission mechanism of the foldable electronic device in the folded state according to an embodiment of the present application. Fig.10b This is a structural principle diagram of another implementation method of the transmission mechanism of the foldable electronic device in the unfolded state according to an embodiment of the present application. Fig.10c This is a structural principle diagram of another implementation method of the transmission mechanism of the foldable electronic device in the folded state according to an embodiment of the present application. Fig.10d This is a structural principle diagram of another implementation method of the transmission mechanism of the foldable electronic device in the unfolded state according to an embodiment of the present application.

[0166] It should be noted that the embodiment of the present application does not limit the specific structure of the transmission mechanism 5, as long as it can achieve its function, that is, the transmission mechanism 5 can convert the rotational movement of the first connecting shaft 41 of the shaft assembly 4 into the translational movement of the foot pad 34 in the first direction Z1.

[0167] In one possible implementation, Figure 9a and Figure 7a As shown, the transmission mechanism 5 includes a first rotating member 51 and a sliding member 52. The first rotating member 51 is connected to the first connecting shaft 41 and is fixed relative to the first connecting shaft 41 along its circumference, that is, the first rotating member 51 can rotate together with the first connecting shaft 41 in the same direction. The sliding member 52 is slidably connected to the accommodating cavity 32 of the system end housing 31 along the second direction Y1, wherein the second direction Y1 is perpendicular to the first direction Z1 and the third direction X1. In one example, the bottom surface of the sliding member 52 is slidably connected to the bottom 312 of the system end housing 31.

[0168] In a possible implementation, the first rotating member 51 is fixedly connected to the first connecting shaft 41, that is, the first rotating member 51 is fixed relative to the first connecting shaft 41 in all directions. It should be noted that the fixing method of the first rotating member 51 and the first connecting shaft 41 is not limited. In one example, the first rotating member 51 and the first connecting shaft 41 are an integral structure, that is, they are formed by integral processing. In another example, the first rotating member 51 and the first connecting shaft 41 are a split structure, and the first rotating member 51 can be fixedly connected to the first connecting shaft 41 by bonding, spot welding, clamping, etc.

[0169] It should be noted that the specific structure of the sliding member 52 is not limited. In a possible implementation, the sliding member 52 includes a first transmission part 521 and a second transmission part 522 , and the first transmission part 521 can be transmission-connected to the first rotating member 51 .

[0170] The second transmission part 522 has a sliding surface 524 for the foot pad 34 to slide, and the sliding surface 524 has a first end 5241 and a second end 5242 spaced apart in the second direction Y1, and in the first direction Z1, the sliding surface 524 extends from the first end 5241 to the second end 5242 toward the direction close to the bottom 312. The specific structures of the first transmission part 521 and the second transmission part 522 will be described in detail later in conjunction with the accompanying drawings.

[0171] Specifically, Figure 5b-Figure 5c , Figure 9a and Fig.9cAs shown, in response to the rotation of the structure formed by the display end housing 21, the first connecting shaft 41 and the first rotating member 51 around the first axis O1, the first transmission part 521 drives the sliding member 52 to slide along the second direction Y1, and under the cooperation between the sliding surface 524 of the second transmission part 522 and the foot pad 34, the foot pad 34 moves along the first direction Z1. In other words, when the user applies a force to the display end housing 21, the display end housing 21 and the first connecting shaft 41 rotate relative to the system end housing 31 around the first axis O1, and the first rotating member 51 can transmit the rotation of the first connecting shaft 41 to the sliding member 52, so as to realize the displacement of the sliding member 52 in the second direction Y1, and through the cooperation between the sliding surface 524 on the sliding member 52 and the foot pad 34, the foot pad 34 slides along the first direction Z1.

[0172] like Figure 5a-5c As shown, when the display end portion 2 is in the closed state, the foot pad 34 abuts against the sliding surface 524 , for example, the first end 5241 of the sliding surface 524 .

[0173] like Figure 5b , Figure 6b and Figure 7a As shown, combined Fig.9c ( Fig.9c The opening angle shown in Figure 6b ) is understood as the first use angle shown in FIG. 1 , when the display end portion 2 is moved from the closed state (such as Figure 5b position) to the open position (e.g. Figure 6b or Figure 7a During the process of folding the foldable electronic device 1, the sliding member 52 slides along the second direction Y1, and the foot pad 34 slides from the first end 5241 of the sliding surface 524 toward the second end 5242, which can provide a moving space for the foot pad 34 to move away from the top 311 of the system end shell 31. The foot pad 34 moves along the first direction Z1 toward the direction away from the top 311 and gradually extends out of the system end shell 31, so that the foot pad 34 spontaneously lifts the system end part 3 to increase the heat dissipation space.

[0174] like Figure 5b , Figure 6b and Figure 8 As shown, when the display end portion 2 is changed from the open state (for example, as Figure 6b or Figure 8 position shown) to the closed position (as shown Figure 5bDuring the process of moving the sliding member 52 from the first connecting shaft 41 to the first rotating member 51, the sliding member 52 can slide along the second direction Y1 under the transmission of the first connecting shaft 41 and the first rotating member 51, and make sliding contact with the foot pad 34 through the sliding surface 524, so as to push the foot pad 34 to gradually retract along the first direction Z1 and be stored in the accommodating cavity 32. In this way, the transmission mechanism 5 is simple in design and easy to implement, and there is no need to add a complex structure or power source to realize the function, which can save the internal space and save costs. Furthermore, the sliding member 52 realizes the retraction and lifting functions by cooperating with the foot pad 34 through the sliding surface 524. The sliding surface 524 has a simple structure and a simple process, and can realize stable and reliable motion conversion without adding other complex mechanisms, and is simple to operate and highly reliable.

[0175] In one possible implementation, Figure 7b and Figure 9a As shown in FIG. 1 , when the foot pad 34 is at the maximum lifting height position, the foot pad 34 abuts against the second end 5242 of the sliding surface 524 and the bottom 312 of the system end housing 31. In other possible implementations, when the foot pad 34 is at the maximum lifting height position, the foot pad 34 may also abut against the bottom 312 of the system end housing 31 and be separated from the sliding surface 524 (see FIG. 1 ). Fig.10b ), and is located on a side of the second end 5242 away from the first end 5241, or, the foot pad 34 abuts against the second end 5242 of the sliding surface 524, which is not limited in this embodiment of the present application.

[0176] It should be noted that the first transmission part 521 can be directly connected to the first rotating member 51 (for example, Figure 10a-Figure 10b The structure shown in the figure) can also be formed by other components (for example, Figure 7a The second rotating member 53 in the embodiment is indirectly connected to the first rotating member 51 by transmission, and the embodiment of the present application does not limit this. In one example, Fig.10a and Fig.10b As shown, there is direct contact transmission between the first transmission part 521 and the first rotating member 51. Specifically, in the process of the foldable electronic device 1 gradually unfolding, the first connecting shaft 41 rotates clockwise around the first axis O1, and accordingly, the first rotating member 51 also rotates clockwise, so that the sliding member 52 can slide in the second direction Y1 toward the side away from the first connecting shaft 41. At this time, the second transmission part 522 will leave a displacement space in the first direction Z1 for the foot pad 34 to move during the sliding process in the second direction Y1, so that the foot pad 34 can slide in the first direction Z1 toward the bottom 312 of the system end shell 31, thereby raising the system end shell 31 and increasing the heat dissipation space.

[0177] In another example, Figure 7aAs shown, the first transmission part 521 and the first rotating member 51 are indirectly contacted for transmission. Specifically, the transmission mechanism 5 also includes a second rotating member 53, which is rotatably connected to the accommodating cavity 32 of the system end housing 31 through the second connecting shaft 351, so that the second rotating member 53 can rotate relative to the system end housing 31 around the second axis O2, wherein the second axis O2 is parallel to the first axis O1. In addition, the second rotating member 53 can be transmission-connected to the first rotating member 51 and the first transmission part 521, so that the first transmission part 521 can be transmission-connected to the first rotating member 51 through the second rotating member 53.

[0178] It can be understood that the rotation direction of the second rotating member 53 is opposite to the rotation direction of the first rotating member 51 .

[0179] like Figure 5b-Figure 7b As shown, when the display end portion 2 is changed from the closed state (such as Figure 5b position) to an open position (e.g. Figure 6b or Figure 7a When the first connecting shaft 41 is switched to the position shown in the figure, the first rotating member 51 rotates around the first axis O1 driven by the first connecting shaft 41, and drives the second rotating member 53 to rotate around the second axis O2, and drives the sliding member 52 to slide along the second direction Y1 in the direction away from the foot pad 34 through the transmission connection between the second rotating member 53 and the first transmission part 521. Under the cooperation between the sliding surface 524 of the second transmission part 522 and the foot pad 34, the foot pad 34 moves along the first direction Z1 in the direction away from the top 311 and gradually extends out of the system end housing 31. In other words, the rotational movement of the first connecting shaft 41 can be transmitted to the first transmission part 521 and the second transmission part 522 of the sliding member 52 in sequence through the first rotating member 51 and the second rotating member 53, and the movement direction can be changed through the cooperation between the second transmission part 522 and the foot pad 34.

[0180] Specifically, Figure 5b-Figure 7bAs shown, during the unfolding process of the foldable electronic device 1, the first connecting shaft 41 rotates clockwise around the first axis O1, and the first rotating member 51 also rotates clockwise around the first axis O1, driving the second rotating member 53 to rotate counterclockwise around the second axis O2, and the sliding member 52 will slide along the second direction Y1 in the direction away from the foot pad 34, that is, slide in the direction close to the first connecting shaft 41. At this time, the second transmission part 522 will vacate the displacement space in the first direction Z1 during the sliding process in the second direction Y1, so that the foot pad 34 can slide in the first direction Z1 toward the bottom 312 of the system end shell 31, thereby raising the system end shell 31 and increasing the heat dissipation space. Further, the sliding member 52 can reduce the layout space in the second direction Y1 (or can be understood as the length of the sliding member 52), and its structure is simple, which can simplify the structure of the sliding member 52, thereby reducing the space occupied by the sliding member 52 in the accommodating cavity 32, which is conducive to the light and thin design of the foldable electronic device 1.

[0181] During the closing process of the foldable electronic device 1, the first connecting shaft 41 rotates counterclockwise around the first axis O1, and the first rotating member 51 also rotates counterclockwise around the first axis O1, driving the second rotating member 53 to rotate clockwise around the second axis O2. The sliding member 52 slides along the second direction Y1 toward the foot pad 34, and the foot pad 34 is retracted to the sliding surface 524. Figure 5b The position in the middle, that is, the retracted storage position.

[0182] It is understandable that when the foot pad 34 is supporting and lifting the foldable electronic device 1, the device will inevitably be affected by external forces, and due to the gravity of the foldable electronic device 1 itself, the foot pad 34 will tend to retract into the accommodating cavity 32. Therefore, the foot pad 34 can be designed in the form of a structural member to stably support the system end housing 31 of the foldable electronic device 1 during the lifting process to avoid the possibility of shaking or sudden falling, which may damage the foldable electronic device 1.

[0183] In one possible implementation, Figure 9a and Fig.9c As shown, an elastic member 6 may be disposed between the foot pad 34 and the top 311 of the system end housing 31. One end of the elastic member 6 abuts against the foot pad 34, and the other end abuts against the top 311.

[0184] It should be noted that the specific position of the elastic member 6 is not limited. Figure 5bAs shown, the upper surface 346 of the foot pad 34 is recessed inward to form a groove 345. The two ends of the elastic member 6 are respectively in contact with the top 311 of the system end housing 31 and the groove bottom surface 3451 of the groove 345. In this way, the elastic member 6 is arranged in the groove 345. When the display end part 2 is in a closed state, the elastic member 6 can be partially accommodated in the groove 345, so that the upper surface 346 of the foot pad 34 can be in direct contact with the top 311 of the system end housing 31 or have a small gap, so that under the condition that the thickness of the system end housing 31 is certain, it can be ensured that the foot pad 34 has sufficient movement stroke during the movement process, thereby increasing the maximum height of the foot pad 34 lifting the system end part 3, increasing the heat dissipation space of the bottom 312 of the system end part 3, and improving the heat dissipation performance of the foldable electronic device 1. In another example, the elastic member 6 can also be arranged between the upper surface 346 of the foot pad 34 and the lower surface 347 of the top 311, and the elastic member 6 is not accommodated in the inside of the foot pad 34. It is understandable that the above-mentioned groove 345 may not be provided in the foot pad 34, and the embodiment of the present application is not limited to this.

[0185] Furthermore, the elastic member 6 may not be provided between the foot pad 34 and the top 311 of the system end shell 31. When the first connecting shaft 41 switches from the first rotation position to the second rotation position, the foot pad 34 may be lifted downward under the action of its own gravity, and the foot pad 34 may be maintained at the lifted height position by providing a damping structure or a limiting structure to stably support the entire machine. The embodiments of the present application do not impose any restrictions on this.

[0186] It should be noted that the type of the elastic member 6 is not limited. In a possible implementation, the elastic member 6 is a spring. In other possible implementations, the elastic member 6 may also be a material that can be elastically deformed, such as rubber.

[0187] Furthermore, the positioning method of the elastic member 6 is not limited. Figure 7a As shown, in a possible implementation, the top 311 of the system end housing 31 protrudes inward to form a guide platform 38, and the elastic member 6 is sleeved on the guide platform 38. With this structure, the guide platform 38 can reduce or avoid the possible deviation of the elastic member 6 during the expansion and contraction process in the first direction Z1, ensure the accuracy of the foot pad 34 during the movement process, and improve the user experience.

[0188] like Figure 5b , Figure 6b and Figure 7aAs shown, through the elastic force of the elastic member 6, the foot pad 34 can be elastically abutted against the transmission mechanism 5 along the first direction Z1 when the display end portion 2 is in a closed state, and the foot pad 34 can be elastically abutted against the transmission mechanism 5 along the first direction Z1 when the display end portion 2 is in an open state. When the display end portion 2 switches from a closed state to an open state, the elastic force of the elastic member 6 can push the foot pad 34 to move along the first direction Z1 in a direction away from the top 311 and gradually extend out of the system end shell 31.

[0189] It should be noted that, under the action of the elastic member 6, when the display end portion 2 is in the open state, the foot pad 34 elastically abuts against the sliding surface 524 of the transmission mechanism 5 along the first direction Z1 (see Fig.9c ), or elastically abuts against the bottom 312 of the system end housing 31 (see Fig.10b ), or, elastically abutting against the sliding surface 524 of the transmission mechanism 5 and the bottom 312 of the system end housing 31 (see Figure 7b and Figure 9a ), this embodiment of the present application does not limit this.

[0190] Furthermore, if Figure 5b , Figure 6b-Figure 7b As shown, when the transmission mechanism 5 includes a sliding member 52, and the sliding member 52 has a sliding surface 524: when the display end portion 2 is in a closed state, the foot pad 34 is pressed against the sliding surface 524 by the elastic member 6. When the display end portion 2 is in an open state, the foot pad 34 is pressed against the sliding surface 524 by the elastic member 6 (see Fig.9c ), or the elastic member 6 presses the foot pad 34 against the bottom 312 (see Fig.10b ), or the elastic member 6 presses the foot pad 34 against the sliding surface 524 and the bottom 312 (see Figure 7b and Figure 9a ), this embodiment of the present application does not limit this.

[0191] That is to say, Figure 5b-Figure 5c as well as Figure 6a-Figure 6b As shown, when the sliding member 52 slides in the second direction Y1 toward the side away from the foot pad 34, the area where the second transmission part 522 is located forms a space for the foot pad 34 to move in the first direction Z1. At this time, the elastic force of the elastic member 6 will push the foot pad 34 to move toward the outside of the accommodating cavity 32, that is, the foot pad 34 is pushed to move along the first direction Z1 toward the direction away from the top 311 and gradually extend out of the system end shell 31, thereby lifting the foldable electronic device 1.

[0192] And, if Figure 7a and Figure 7bAs shown, when the display end portion 2 is in the open state, that is, the foot pad 34 is in the process of supporting the foldable electronic device 1, the foot pad 34 is acted upon by the elastic force of the elastic member 6 and will not retract into the accommodating cavity 32, so that the support is more stable; further, during use, even if it is subjected to external force factors such as bumps, or under the action of gravity of the foldable electronic device 1, the elastic force generated by the elastic member 6 can ensure that the foot pad 34 is always in the extended and raised position, and the foldable electronic device 1 will not be suddenly reset and closed due to the retraction of the foot pad 34 into the accommodating cavity 32, that is, the elastic member 6 can ensure that the rotation of the first connecting shaft 41 drives the foot pad 34 to be lifted, and this process is carried out in one direction.

[0193] like Figure 8 As shown, when the sliding member 52 slides toward the side close to the foot pad 34 in the second direction Y1, the second transmission part 522 will push the foot pad 34 to move toward the side of the top 311 of the system end shell 31 (i.e., push the foot pad 34 toward the top 311 of the system end shell 31), continuously compressing the elastic member 6, and the sliding member 52 helps the foot pad 34 overcome the elastic force of the elastic member 6. This process can make the foot pad 34 retract slowly and safely, avoiding damage caused by the instantaneous closure of the foldable electronic device 1, and can also provide users with a good feel to ensure the user's experience. On the other hand, the stacking design of the foot pad 34, the elastic member 6, and the top 311 of the system end shell 31 occupies a relatively compact space in the first direction Z1, which is conducive to the thin and light design of the foldable electronic device 1.

[0194] The first rotating member 51 and the second rotating member 53 will be described in detail below with reference to the accompanying drawings.

[0195] It should be noted that the embodiment of the present application does not limit the specific structures of the first rotating member 51 and the second rotating member 53. Figure 9a and Figure 9b As shown, in a possible implementation, the first rotating member 51 is configured as a first gear 511, the second rotating member 53 is configured as a second gear 531, the first transmission portion 521 of the sliding member 52 is provided with a rack 5211, and the second gear 531 can be meshed with the first gear 511 and the rack 5211. With this structure, the sliding member 52 has a higher transmission efficiency through the gear transmission and the structure of the gear rack 5211, and has a compact structure, stable transmission, high reliability, and is conducive to matching with the first connecting shaft 41, convenient installation, and low cost.

[0196] Specifically, the rack 5211 extends along the second direction Y1, and the rack 5211 and the second transmission part 522 are sequentially arranged in the second direction Y1. It should be noted that the embodiment of the present application does not limit the arrangement direction of the multiple teeth on the rack 5211, and can be reasonably arranged according to the teeth on the first gear 511 or the second gear 531 to meet the translation requirements of the foot pad 34 to achieve the displacement of the transmission mechanism 5 in the second direction Y1.

[0197] Furthermore, if Figure 5a and Figure 5b As shown, when the display end portion 2 is in the closed state, the second gear 531 is located at the end of the rack 5211 away from the second transmission part 522. At this time, the end of the rack 5211 away from the second transmission part 522 may contact the first gear 511 or not, and this embodiment of the application is not limited to this.

[0198] like Figure 6a and Figure 6b , Figure 7a As shown, when the display end portion 2 is changed from the closed state (such as Figure 5b position) to an open position (e.g. Figure 6b or Figure 7a When the position is switched (as shown in the figure), the rack 5211 will move toward one side of the first connecting shaft 41 along the second direction Y1 under the joint action of the first rotating member 51 and the second rotating member 53, and the rack 5211 will gradually move between the first gear 511 and the bottom 312 of the system end shell 31.

[0199] like Figure 6b and Figure 7a As shown, when the display end portion 2 is in the open state (for example, as Figure 6b or Figure 7a , the second gear 531 is located at one end of the rack 5211 close to the second transmission part 522. It can be understood that, in the process of the foot pad 34 continuously extending and lifting, the rack 5211 is continuously moving. In a possible implementation, the rack 5211 is still in the accommodating cavity 32 during the continuous movement. That is to say, when the display end part 2 is in the closed state, the rack 5211 is located in the accommodating cavity 32 as a whole, and when the display end part 2 is in the open state, the rack 5211 is still located in the accommodating cavity 32 as a whole. In other possible implementations, when the display end part 2 is in the open state, the rack 5211 may also partially slide out of the accommodating cavity 32 gradually, that is, partially located in the accommodating cavity 32 and partially located outside the accommodating cavity 32. At this time, a hole is provided on the side wall of the system end housing 31, and the hole allows the rack 5211 to pass through. The embodiment of the present application does not limit this.

[0200] That is to say, Figure 5b , Figure 6band Figure 7a As shown, the rack 5211 and the second transmission part 522 are sequentially arranged in the second direction Y1, occupying a small space, and in the process of the foldable electronic device 1 from closing to opening to a comfortable use angle, the rack 5211 moves toward the side away from the foot pad 34 under the action of the first rotating member 51 and the second rotating member 53, so that the foot pad 34 has space to move in the first direction Z1, so that the foot pad 34 can move in the direction away from the top 311 of the system end shell 31, gradually protruding from the bottom surface 3121 of the bottom 312 of the system end shell 31 to a certain height, to lift the system end part 3, while realizing the stable support of the foldable electronic device 1 on the supporting surface 7, and improving its heat dissipation efficiency. Further, the rack 5211 is arranged according to the sliding distance of the sliding member 52 inside the accommodating cavity 32, and cooperates with the rotation of the second gear 531 to achieve high reliability and a relatively stable structure, and can also make full use of the length space in the second direction Y1 in the accommodating cavity 32 without reserving a large layout space, which can improve the integration of the transmission mechanism 5 and is conducive to the light and thin design of the foldable electronic device 1.

[0201] It should be noted that if Fig.10a and Fig.10b As shown, in other possible implementations, the first gear 511 may also be directly connected to the rack 5211 in transmission. When the display end portion 2 is in a closed state, the rack 5211 may be partially located outside the accommodating cavity 32. When the display end portion 2 is in an open state, the rack 5211 is entirely located inside the accommodating cavity 32, so that the foot pad 34 has sufficient displacement space.

[0202] It can be understood that the moving distance of the foot pad 34 in the first direction Z1 is provided by the movement of the sliding member 52 in the second direction Y1, and the movement of the sliding member 52 in the second direction Y1 is achieved by the cooperation of the rack 5211 and the second rotating member 53, that is, those skilled in the art can reasonably set the length of the rack 5211 according to the height of the foot pad 34, and the embodiment of the present application does not limit this. In one example, when the display end portion 2 rotates from the closed state to the open state and the opening angle is the first use angle (i.e., Figure 6b When the position is shown in the figure, the movement stroke of the rack 5211 in the second direction Y1 can be 0mm-8mm, and the movement stroke of the foot pad 34 in the first direction Z1 can be 0mm-7mm.

[0203] Furthermore, in a possible implementation, the first gear 511 is an incomplete gear, and the second gear 531 is a complete gear. A complete gear refers to a gear whose teeth are evenly distributed on the entire circumference, which is usually used for continuous transmission, has a large number of teeth, and can achieve stable and continuous power transmission. An incomplete gear refers to a gear whose teeth are not distributed on the entire circumference, which can achieve intermittent motion.

[0204] When the display terminal portion 2 is changed from the closed state (such as Figure 5b and Figure 5c When the display end portion 2 is switched to the open state, the first connecting shaft 41 rotates, and the first gear 511 is meshed with the second gear 531, and the second gear 531 is meshed with the rack 5211, so that the foot pad 34 is driven to move along the first direction Z1 in a direction away from the top 311 and gradually extend out of the system end housing 31, until the opening angle of the display end portion 2 is a preset angle (such as Figure 6b As shown in FIG. 1 , the foot pad 34 extends to the maximum lifting height relative to the system end housing 31, and the display end portion 2 continues to be opened (as shown in FIG. 1 ). Figure 7a and Figure 7b As shown), the first gear 511 gradually disengages from the second gear 531, the second gear 531, the rack 5211 and the foot pad 34 remain stationary relative to the system end housing 31, and the foot pad 34 remains at the maximum lifting height position unchanged.

[0205] That is to say, the transmission mechanism 5 can, through the cooperation of complete gears and incomplete gears, transmit the rotation conversion of the first connecting shaft 41 to the translational movement of the foot pad 34 when the first rotating member 51 is meshed with the second rotating member 53. When the foot pad 34 is lifted to the maximum height, the first rotating member 51 and the second rotating member 53 are in a non-meshing state, that is, the first rotating member 51 will not continue to drive the second rotating member 53 to rotate, the sliding member 52 will stop displacing in the second direction Y1, and the foot pad 34 will not continue to translate, which can prevent the sliding member 52 from partially or completely moving out of the accommodating cavity 32 and avoid damage to the bottom 312 of the system end shell 31.

[0206] When the display terminal portion 2 is changed from the open state (for example, Figure 7a and Figure 7b position shown) to the closed position (as shown Figure 5b and Figure 5c When the first connecting shaft 41 is rotated, the first gear 511 rotates to a position where it meshes with the second gear 531 (for example, Figure 6b The second gear 531 is meshed with the rack 5211, thereby driving the foot pad 34 to move along the first direction Z1 toward the top 311 and gradually retract into the system end housing 31 (as shown in FIG. Figure 5b and Figure 5c shown in the position).

[0207] In simple terms, Figure 5b , Figure 6b and Figure 7aAs shown, when the display end portion 2 switches from the closed state to the open state, the first gear 511 is meshed with the second gear 531, and the second gear 531 is meshed with the rack 5211, and the foot pad 34 is driven by the first connecting shaft 41 and the transmission mechanism 5 to move in the first direction Z1 until the opening angle of the display end portion 2 is a preset angle, and the foot pad 34 is extended to the maximum lifting height position relative to the system end housing 31, and the display end portion 2 continues to be opened, and the first gear 511 is disengaged from the contact position with the second gear 531, so that the first connecting shaft 41 is continuously rotating, and the user can meet the user's While allowing users to use the foldable electronic device at different angles, the thickness space in the accommodating cavity 32 is fully utilized to enable the foot pad 34 to reach its maximum lifting height, and the space occupation of the system end portion 3 due to the continuous movement of the sliding member 52 in the second direction Y1 is reduced (for example, when the sliding member 52 slides in the second direction Y1 in the direction away from the foot pad 34, it is necessary to reserve sufficient sliding space for the sliding member 52 in the second direction Y1, or the sliding member 52 will slide out of the system end shell 31). The thickness of the system end portion 3 and the internal space can be reasonably arranged to achieve a lightweight design and appearance integrity of the foldable electronic device 1.

[0208] In other possible implementations, the first gear 511 may be a complete gear, and the second gear 531 may be a complete gear, which is not limited in the embodiment of the present application.

[0209] It should be noted that the specific position where the first gear meshes with the second gear 531 is not limited. Figure 5b As shown, in a possible implementation, when the foldable electronic device 1 is in a folded state (i.e., the display end portion 2 is in a closed state), the first gear 511 is meshed with the second gear 531, and the second gear 531 is meshed with the rack 5211. In other possible implementations, when the foldable electronic device 1 is in a folded state, the first gear 511 may be disengaged from the second gear 531, and when the foldable electronic device 1 is unfolded at a certain angle (e.g., Figure 2 After the first connecting shaft 41 is rotated, the first gear 511 can also start to mesh with the second gear 531 again, thereby gradually driving the sliding member 52 to slide and realize the displacement of the foot pad 34 in the first direction Z1. The embodiment of the present application does not limit this.

[0210] In one possible implementation, Figure 6bAs shown, the preset angle is equal to the first usage angle, which can ensure that when the opening angle of the display end shell 21 is at the first usage angle (which can be understood as the minimum usage angle in the comfortable usage angle range of the display end part 2) and other usage angles greater than the first usage angle, the foot pad 34 maintains the maximum lifting height position unchanged, and when the opening angle of the display end part 2 is the preset angle and the foot pad 34 reaches the maximum lifting height position, even if the display end part 2 continues to be opened, the sliding member 52 remains stationary and will not continue to slide in the second direction Y1, thereby reducing the sliding space reserved for the sliding member 52 in the second direction Y1, and when the comfortable usage angles of different users are different, the foot pad 34 can lift the system end part 3 to the maximum height position to ensure its heat dissipation performance.

[0211] In other possible implementations, the preset angle may also be smaller than the first usage angle, that is, before the opening angle of the display end portion 2 reaches the first usage angle, the first gear 511 and the second gear 531 are already disengaged, that is, the foot pad 34 will not continue to extend before the foldable electronic device 1 is at the most comfortable usage angle, that is, the foot pad 34 is at the maximum lifting height position, thereby improving the heat dissipation performance while meeting the needs of most users for comfortable use.

[0212] It should be noted that the installation positions of the first rotating member 51 and the second rotating member 53 are not limited and can be reasonably set according to the position of the foot pad 34 at the bottom 312 of the system end housing 31 .

[0213] It should be noted that the fixing method of the second rotating member 53 in the accommodating cavity 32 is not limited. In one possible implementation, a mounting seat 35 is provided in the accommodating cavity 32, and the mounting seat 35 is fixedly connected to a side surface of the bottom 312 close to the top 311. The second rotating member 53 is rotatably connected to the mounting seat 35 via a second connecting shaft 351.

[0214] The sliding member 52 will be described in detail below with reference to the accompanying drawings.

[0215] See also Fig.11a and Fig.11b , Fig.11a This is a schematic diagram of the three-dimensional structure of a sliding member in a foldable electronic device according to an embodiment of the present application. Fig.11b This is a schematic side view of the structure of a sliding member in a foldable electronic device according to an embodiment of the present application.

[0216] It should be noted that the present application does not limit the number of the first transmission parts 521 and the second transmission parts 522 in the sliding member 52. In a possible implementation, Figures 9a to 9cAs shown, the sliding member 52 includes a first transmission part 521 and two second transmission parts 522, and the two second transmission parts 522 are arranged at intervals in the third direction X1. The sliding surfaces 524 of the two second transmission parts 522 are respectively used to contact and slide with the two side parts of the foot pad 34 in the third direction X1. In this way, there is a larger contact area between the sliding member 52 and the foot pad 34, and stable support can be achieved. In one example, in the third direction X1, the two second transmission parts 522 can be symmetrically arranged relative to the first transmission part 521, and the two second transmission parts 522 can be symmetrically arranged relative to the center part of the foot pad 34. In other examples, the two second transmission parts 522 can also be arranged asymmetrically, and the embodiments of the present application are not limited to this.

[0217] It should be noted that the relative positions of the first transmission part 521 and the second transmission part 522 are not limited. Figure 9a and Fig.9c As shown, in a possible implementation, in the second direction Y1, the first transmission part 521 is located at the first end 5201 of the sliding member 52, and the second transmission part 522 is located at the second end 5202 of the sliding member 52. In this way, the structure of the sliding member 52 is compact and the design is simple, which is conducive to reducing the occupation of the internal space of the accommodating cavity 32 by the transmission mechanism 5, and is conducive to the lightweight design of the foldable electronic device. In other possible implementations, in the second direction Y1, the first transmission part 521 and the second transmission part 522 can also be set at other positions besides the end, and the embodiment of the present application is not limited to this.

[0218] Furthermore, if Fig.11a and Fig.11b As shown, in a possible implementation, the sliding member 52 may also include a connecting portion 525, which is connected between the first transmission portion 521 and the second transmission portion 522, the first transmission portion 521 is located between the bottom 312 of the system end shell 31 and the first rotating member 51, and the second transmission portion 522 and the connecting portion 525 are located between the bottom 312 and the top 311 of the system end shell 31.

[0219] Specifically, Figure 9a , Figure 11a-Figure 11bAs shown, the two second transmission parts 522 and the connecting part 525 are surrounded together to form: a U-shaped groove 526 with an opening facing away from the first transmission part 521, and at least part of the foot pad 34 is located in the U-shaped groove 526. At this time, the arrangement of the sliding member 52 and the first rotating member 51 fully utilizes the space in the first direction Z1 in the accommodating cavity 32, has a compact layout, and can provide a larger lifting height for the foot pad 34 in a limited space, and the scheme is more flexible and easy to implement. Further, the sliding member 52 connects the first transmission part 521 with the second transmission part 522 through the connecting part 525, which can ensure its own structural strength, and the foot pad 34 can be partially located in the U-shaped groove 526 formed by the two second transmission parts 522 and the connecting part 525, which can reduce the occupation of the internal space of the accommodating cavity 32 by the components, has a compact structure, and can also make the sliding contact between the foot pad 34 and the second transmission part 522 more stable and smooth.

[0220] It should be noted that, during the rotation of the first connecting shaft 41, the foot pad 34 may be located entirely in the U-shaped groove 526, or may be located partially in the U-shaped groove 526 (see Figure 9a ), or may not be located in the U-shaped groove 526, which is not limited in the embodiment of the present application. In one example, the sliding member 52 slides in the second direction Y1 toward the side away from the foot pad 34, so that the foot pad 34 is pressed against the bottom 312 and is located as a whole on the outside of the U-shaped groove 526 (not shown in the figure).

[0221] In other possible implementations, such as Fig.10c and Fig.10d As shown, the sliding member 52 may not include the connecting portion 525. In this case, the first transmission portion 521 and the second transmission portion 522 are designed and arranged according to the relative positions of the rotating member and the foot pad 34, which can reduce the space occupied by the sliding member 52. A second transmission portion 522 may also be provided in the sliding member 52, which is not limited in the embodiment of the present application.

[0222] It should be noted that the specific structures of the first transmission part 521 and the second transmission part 522 are not limited. In a possible implementation, Figure 9a and Fig.9c As shown, the second transmission part 522 is configured as a transmission block 523 in a block structure, and the transmission block 523 extends along the first direction Z1 and the second direction Y1. With this structure, the transmission block 523 can make full use of the thickness space in the accommodating cavity 32, and can make full use of its thickness to maximize the maximum lifting height of the foot pad 34, thereby ensuring that the foldable electronic device 1 has sufficient heat dissipation space.

[0223] like Fig.11a and Fig.11bAs shown, in one example, the transmission block 523 has an upper top surface 5231A and a lower bottom surface 5232A which are arranged opposite to each other in the first direction Z1, and a front end surface 5235 and a rear end surface 5236 which are arranged opposite to each other in the second direction Y1. The upper top surface 5231A of the transmission block 523 is arranged toward the top 311 of the system end housing 31, and the lower bottom surface 5232A of the transmission block 523 is arranged toward the bottom 312 of the system end housing 31. The upper top surface 5231A of the transmission block 523 constitutes the top end 5231 of the transmission block 523, the lower bottom surface 5232A constitutes the bottom end 5232 of the transmission block 523, the front end surface 5235 constitutes the front end 5233, and the rear end surface 5236 constitutes the rear end 5234. Among them, the lower bottom surface 5232A of the transmission block 523 can be understood as the bottom surface of the sliding member 52. The upper top surface 5231A of the transmission block 523 can contact the top 311 of the system-end shell 31, which can increase the contact and movement distance of the foot pad 34 on the transmission block 523 and ensure the lifting height of the foot pad 34; or, there is a first gap between the upper top surface 5231A of the transmission block 523 and the top 311 of the system-end shell 31, and the first gap is a smaller value. In this way, the friction between the sliding part 52 and the system-end shell 31 can be reduced, maintaining a better feel of use.

[0224] In other possible implementations, the second transmission portion 522 may also be a truncated cone or conical transmission structure, which is not limited in the embodiment of the present application.

[0225] The sliding surface 524 will be described in detail below with reference to the accompanying drawings.

[0226] See also Figure 12a-12e , Figure 12a-12e It is a partial structural schematic diagram of different structural forms of cooperation between the foot pad of the foldable electronic device and the sliding member in the embodiment of the present application.

[0227] It should be noted that the specific position of the sliding surface 524 is not limited. In a possible implementation, Figure 5c and Figure 7b As shown, in the second direction Y1 , the sliding surface 524 extends from the first end 5241 to the second end 5242 in a direction away from the first transmission portion 521 .

[0228] It should be noted that the specific extension positions of the first end 5241 and the second end 5242 of the sliding surface 524 are not limited. Fig.11a and Fig.11bAs shown, in a possible implementation, the first end 5241 of the sliding surface 524 extends to the top end 5231 of the transmission block 523 in the first direction Z1, and the second end 5242 of the sliding surface 524 extends to the front end 5233 of the transmission block 523 in the second direction Y1. The front end 5233 of the transmission block 523 is the end of the transmission block 523 away from the first transmission part 521 in the second direction Y1. In other words, by providing the sliding surface 524 on the transmission block 523, the movement of the transmission block 523 in the second direction Y1 can be converted into the displacement of the foot pad 34 in the first direction Z1 through simple structural coordination, which is easy to implement, occupies little space, and can make full use of the space to ensure the lifting height of the foot pad 34. In other possible implementations, such as Fig.10a and Fig.10b As shown, the second end 5242 of the sliding surface 524 may also extend to the rear end 5234 of the transmission block 523 in the second direction Y1 (the rear end 5234 may be a rear end surface, a rear end edge or a rear end point), which is not limited in this embodiment of the present application.

[0229] like Fig.11a As shown, in one example, the top end 5231 of the transmission block 523 in the first direction Z1 may be an upper top surface 5231A, so that the first end 5241 of the sliding surface 524 may extend to the upper top surface 5231A of the transmission block 523, and the front end 5233 of the transmission block 523 may be a front end surface 5235, so that the second end 5242 of the sliding surface 524 may extend to the front end surface 5235 of the transmission block 523. In other examples, such as Figure 10a to Figure 10b As shown, the top end 5231 of the transmission block 523 in the first direction Z1 can be a top edge (or vertex), so that the first end 5241 of the sliding surface 524 can extend to the top edge of the transmission block 523. In other examples, the second end 5242 of the sliding surface 524 can also extend to the rear end surface 5236 of the transmission block 523.

[0230] It should be noted that the specific structure of the sliding surface 524 is not limited. In a possible implementation, the sliding surface 524 is configured as a plane inclined relative to the first plane (see Fig.11b and Fig.12a ), or a multi-segment plane (see Figure 12b ), that is, the sliding surface 524 has a tendency to be tilted toward the bottom 312 of the system end housing 31 as a whole. The first plane is perpendicular to the first direction Z1.

[0231] In an example, Figure 5c and Figure 7bAs shown, the sliding surface 524 is set as an inclined plane inclined relative to the first plane, and correspondingly, the foot pad 34 has a matching surface 341 that is in sliding contact with the sliding surface 524, and the matching surface 341 is set as an inclined plane inclined relative to the first plane. When the foot pad 34 switches between the retracted storage position and the extended lifting position, the sliding surface 524 is at least partially in contact with the matching surface 341.

[0232] Specifically, when the foot pad 34 is in the retracted storage position, the sliding surface 524 contacts the mating surface 341. When the first connecting shaft 41 starts to rotate, the sliding member 52 can slide toward the side away from the foot pad 34. Under the action of gravity and elastic force, the foot pad 34 can move toward the bottom 312 along the first direction Z1. When the foot pad 34 is in the extended lifting position, the mating surface 341 of the foot pad 34 can slide out of the sliding surface 524 (see Fig.10b ), and may also contact the sliding surface 524 (see Fig.10d ), and the embodiments of the present application do not impose any restrictions on this. That is to say, the sliding surface 524 inclined on the sliding member 52 and the mating surface 341 inclined on the foot pad 34 can increase the contact area between the components and improve the stability of the foot pad 34 support; and, the sliding surface 524 and the mating surface 341 are both inclined to the first plane, and the first plane is perpendicular to the first direction Z1, so that the displacement in the second direction Y1 can be converted into the displacement in the first direction Z1, and the displacement of the foot pad 34 in the first direction Z1 is achieved by the rotation of the first connecting shaft 41, and the structure is simple and easy to implement. Furthermore, the sliding surface 524 is inclined toward the bottom 312 of the system end shell 31 as a whole, which can play a guiding role in the displacement of the foot pad 34 in the first direction Z1, and at the same time, the movement of the foot pad 34 following the sliding member 52 is achieved slowly, which can improve the structural reliability of the transmission mechanism 5 and the foot pad 34 and ensure the user experience.

[0233] Furthermore, in a possible implementation, the sliding surface 524 is inclined at an angle of 15° to 85° relative to the first plane. It is understandable that when the sliding surface 524 is inclined at a larger angle relative to the first plane, that is, the sliding surface 524 is steeper, the foot pad 34 will be raised and lowered more quickly, and the required rotation angle of the first connecting shaft 41 will also be smaller. Those skilled in the art can make reasonable settings according to actual needs.

[0234] In other possible implementations, such as Figure 12c-12e As shown, the sliding surface 524 can be set as a curved surface (for example, Fig.12c The concave arc surface shown in Fig.12d The convex curved surface shown, Fig.12eAs shown in the curved surface, it can be understood that those skilled in the art can set the sliding surface 524 according to actual needs, so as to convert the displacement in the second direction Y1 into the displacement of the foot pad 34 in the first direction Z1.

[0235] It is understandable that the specific structure of the mating surface 341 in the foot pad 34 can be reasonably set according to the structure of the sliding surface 524. It should be noted that when the foot pad 34 is in the retracted storage position, the mating surface 341 can be in contact with the sliding surface 524 as a whole (see Fig.10a and Fig.10c ), or the mating surface 341 may also be in contact with part of the sliding surface 524 as a whole, that is, the area of ​​the mating surface 341 is smaller than that of the sliding surface 524 (see Figure 12a-12e ), at this time, the design of the foot pad 34 is more flexible, and the embodiment of the present application is not limited to this.

[0236] The specific structure of the foot pad 34 will be described below in conjunction with the accompanying drawings.

[0237] It should be noted that the present embodiment does not limit the specific structure of the foot pad 34. Figure 9b As shown, in a possible implementation, the foot pad 34 includes a body 342 and a contact portion 343. The body 342 is disposed in the accommodating cavity 32 of the system end shell 31, and is telescopically arranged in the through hole 33 along the first direction Z1 to extend or retract into the system end shell 31. In one example, the contact portion 343 is formed by protruding outward from the outer surface of one end of the body 342 close to the top 311, and is located in the accommodating cavity 32 of the system end shell 31. It can be understood that the mating surface 341 that is in sliding contact with the sliding surface 524 mentioned above is located on the contact portion 343. As shown in FIG. Figure 5c As shown, when the display end portion 2 is in a closed state, the contact portion 343 abuts against the first end 5241 of the sliding surface 524. When the display end portion 2 switches from the closed state to the open state, the body 342 moves in the through hole 33 along the first direction Z1, and the contact portion 343 slides from the first end 5241 of the sliding surface 524 to the second end 5242 until the foot pad 34 extends to the maximum lifting height relative to the system end housing 31. In this way, the foot pad 34 is provided with a contact portion 343 abutting against the sliding surface 524 of the sliding member 52. During the displacement process of the foot pad 34, the contact portion 343 can better cooperate with the displacement of the sliding member 52 in the second direction Y1, so as to achieve smooth sliding of the foot pad 34 in the first direction Z1.

[0238] like Figure 7bAs shown, when the foot pad 34 is located at the maximum lifting height position, the contact portion 343 abuts against the second end 5242 of the sliding surface 524, or abuts against the bottom 312 of the system end shell 31, or may abut against the second end 5242 of the sliding surface 524 and the bottom 312 of the system end shell 31, and the embodiment of the present application is not limited to this.

[0239] In one possible implementation, Figure 9b As shown, the body 342 is configured as a cylindrical structure. At this time, the foot pad 34, which is similar to a cylindrical structure as a whole, can be well inserted into the through hole 33 of the bottom 312 of the system end shell 31, making full use of the space, preventing external dirt from entering the accommodating cavity 32, and reducing wear, and the movement of the foot pad 34 is more stable. In other possible implementations, the body 342 can also be configured as a rectangular parallelepiped, a frustum, etc., which is not limited in the embodiment of the present application.

[0240] Furthermore, the embodiment of the present application does not limit the specific structure of the contact portion 343 , and those skilled in the art can reasonably set it under the premise of stable matching between the contact portion 343 and the sliding surface 524 . It is understandable that the matching surface mentioned above is set on the contact portion 343 .

[0241] It should be noted that the embodiment of the present application does not limit the number of contact portions 343. In a possible implementation, Figure 9b As shown, the foot pad 34 includes two contact portions 343, and in the third direction X1, the two contact portions 343 are symmetrically arranged relative to the body 342. In this way, the two contact portions 343 can contact the sliding surface 524, increasing the contact area between the foot pad 34 and the sliding member 52, and the symmetrically arranged contact portions 343 can improve the stability of the foot pad 34 during the extension and retraction process, ensuring the support stability and reliability of the foot pad 34 lifting system end portion 3. In other possible implementations, the two contact portions 343 can also be arranged asymmetrically, and the embodiment of the present application is not limited to this.

[0242] Furthermore, if Figure 9b As shown, in a possible implementation, the foot pad 34 further includes a limiting portion 344, which protrudes outward from the outer surface of one end of the body 342 close to the top 311 and is located in the accommodating cavity 32 of the system end housing 31. When the foot pad 34 is in the extended and raised position, the limiting portion 344 abuts against the bottom 312 of the system end housing 31 along the first direction Z1, so the limiting portion 344 on the foot pad 34 can cooperate with the bottom 312 of the system end housing 31 to prevent the foot pad 34 from sliding out of the accommodating cavity 32 as a whole, thereby ensuring the stability and convenience of the use of the foot pad 34.

[0243] In an example, Figure 10a-Figure 10dAs shown, the limiting portion 344 is located on one side of the foot pad 34 close to the top 311 of the system end shell 31, protruding relative to the main body 342, and the limiting portion 344 and the contact portion 343 are spaced apart in the second direction Y1 to ensure that the foot pad 34 slides stably in the first direction Z1.

[0244] In another example, Figure 9b As shown, the foot pad 34 includes two limiting portions 344, and in the second direction Y1, the two limiting portions 344 are symmetrically arranged relative to the body 342. At this time, the two symmetrically arranged limiting portions 344 can make the sliding of the foot pad 34 in the first direction Z1 more stable, reduce or avoid the shaking problem that may occur in the foldable electronic device 1 during the extension of the foot pad 34, and ensure the user's experience. In addition, the two contact portions 343 and the two limiting portions 344 can be arranged in a ring-shaped interval, so that the foot pad 34 is easier to maintain balance, thereby improving the stability and reliability of the foot pad 34 during the extension process.

[0245] It should be noted that the embodiment of the present application does not limit the specific structure of the limiting portion 344 and the contact portion 343. In one example, the limiting portion 344 and the contact portion 343 are both configured as block structures, which have good structural strength, are simple to process, and are easy to implement.

[0246] And, if Figure 9b As shown, in the height direction of the foot pad 34 (i.e., the first direction Z1), the relative position relationship between the contact portion 343 and the limiting portion 344 can be, for example, located at the same height position of the main body 342 or at different height positions, which is not limited in this embodiment of the present application.

[0247] The following will describe other components in the accommodating cavity 32 that cooperate with the foot pad 34 to achieve the function in combination with the drawings.

[0248] See also Fig.13 , Fig.13 This is a schematic diagram of the local structure of the area where the first shell of the foldable electronic device is located in an embodiment of the present application.

[0249] like Figure 9a-9b and Fig.13As shown, in a possible implementation, the foldable electronic device 1 may further include a first guide structure 36 provided corresponding to the limiting portion 344 of each foot pad 34, each first guide structure 36 is provided in the accommodating cavity 32, and the limiting portion 344 of the foot pad 34 is slidably connected to the first guide structure 36 along the first direction Z1. Specifically, the limiting portion 344 of the foot pad 34 is in sliding contact with the first guide structure 36 in the accommodating cavity 32 in the first direction Z1, which can guide the movement of the foot pad 34 in the first direction Z1, reduce or avoid the displacement of the foot pad 34 during the movement in the first direction Z1, improve the structural reliability, make the lifting process of the foldable electronic device 1 smoother, and enhance the user experience. In other possible implementations, the above-mentioned first guide structure 36 may not be provided.

[0250] It should be noted that the specific structure of the first guide structure 36 is not limited. In a possible implementation, Figure 9a-9b and Fig.13 As shown, the first guide structure 36 includes two first guide members 361, and the two first guide members 361 are spaced apart on both sides of the limiting portion 344 and are in sliding contact with the limiting portion 344, so that the limiting portion 344 clamped between the two first guide members 361 is not prone to displacement in the third direction X1, thereby ensuring the stability and reliability of the foot pad 34 during the process of extending and lifting.

[0251] It is understandable that the first guide structure 36 is specifically configured according to the number and structure of the upper limit portions 344 of the foot pad 34. For example, Figure 9b As shown, when the foot pad 34 has two limit portions 344, the first guide structure 36 also has two. It should be noted that when there are two limit portions 344, the first guide structure 36 can also be one, as long as the displacement of the foot pad 34 in the third direction X1 can be reduced or avoided, and the embodiment of the present application does not limit this.

[0252] In other possible implementations, the first guide structure 36 may also be configured as a semi-arc groove opening toward the foot pad 34 , and two sides of the semi-arc groove may limit the displacement of the foot pad 34 in the third direction X1 .

[0253] It should be noted that the first guide structure 36 and the bottom 312 of the system-end shell 31 can be an integrated structure or a split structure, and the embodiment of the present application does not limit this.

[0254] Furthermore, the specific structure of the first guide member 361 is not limited. In a possible implementation, Figure 9a-9b and Fig.13As shown, the first guide member 361 extends from the bottom 312 of the system end housing 31 to the top 311. At this time, the first guide member 361 may contact with the top 311 of the system end housing 31, or may not contact with the top 311 of the system end housing 31. This is not limited in the present embodiment. In other possible implementations, the first guide member 361 may also extend from the top 311 toward the bottom 312. In one possible implementation, Figure 9a and Figure 9b As shown, the first guide member 361 is a square columnar structure. At this time, the contact surface between the first guide member 361 and the contact portion 343 of the foot pad 34 is relatively regular, and the contact area is larger, so that the lifting process of the foot pad 34 is more stable. In other possible implementations, the first guide member 361 can also be a cylinder, which is not limited in the present embodiment.

[0255] In one possible implementation, Figure 9a , Figure 9b and Fig.13 As shown, the foldable electronic device 1 further includes a second guide structure 37 disposed in the accommodating cavity 32, and the sliding member 52 is slidably connected to the second guide structure 37 along the second direction Y1. With the above structure, the second guide structure 37 can guide the movement of the sliding member 52 in the second direction Y1, which can reduce or avoid the possible deviation of the sliding member 52 during the movement of the sliding member 52 in the second direction Y1, improve the accuracy of the sliding of the sliding member 52 in the second direction Y1, facilitate the stable realization of the function of the transmission mechanism 5, and enhance the user experience.

[0256] It should be noted that the embodiment of the present application does not limit the specific structure of the second guide structure 37. Figure 9a , Figure 9b and Fig.13 As shown, the second guide structure 37 includes two second guide members 371, which are spaced apart on both sides of the sliding member 52 and are in sliding contact with the sliding member 52, so that the sliding member 52 sandwiched between the two second guide members 371 can slide stably along a predetermined trajectory in the second direction Y1, thereby improving the reliability of the transmission mechanism 5.

[0257] Specifically, in one example, the length of the second guide structure 37 is the distance that the second transmission part 522 slides on the bottom 312 of the system end shell 31. In this case, the second guide structure 37 occupies less space and can also save processing costs.

[0258] It should be noted that the second guide structure 37 and the bottom 312 of the system-end shell 31 can be an integrated structure or a split structure, and the embodiment of the present application does not limit this.

[0259] Furthermore, the specific structure of the second guide member 371 is not limited. In a possible implementation, Figure 9a , Figure 9b and Fig.13 As shown, the second guide member 371 is configured as a strip structure, which has better structural strength, so that the sliding member 52 can slide more accurately in the second direction Y1. In other possible implementations, the second guide member 371 can also be configured as a sheet structure, which has a larger contact area with the second transmission part 522, thereby improving the reliability of the transmission mechanism 5.

[0260] The above is a description of the implementation mode of the present application by specific specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Although the description of the present application will be introduced in conjunction with some embodiments, this does not mean that the features of this application are limited to the implementation mode. On the contrary, the purpose of introducing the application in conjunction with the implementation mode is to cover other options or modifications that may be extended based on the claims of the present application. In order to provide a deep understanding of the present application, many specific details will be included in the above description. The present application can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present application, some specific details will be omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0261] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0262] In the description of the present application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", "top", "bottom", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0263] Furthermore, the terms “first” and “second” are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0264] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "setting", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0265] In the description of the present application, it should be noted that the mutual perpendicularity in the present application is not absolute perpendicularity, and the approximate perpendicularity caused by processing errors and assembly errors (for example, the angle between the two structural features is 89.9°) is also within the scope of mutual perpendicularity in the present application. The mutual parallelism in the present application is also not absolute parallelism, and the approximate parallelism caused by processing errors and assembly errors (for example, the angle between the two structural features is 0.1°) is also within the scope of mutual parallelism in the present application. The axisymmetry in the present application is not absolute axisymmetry, and the approximate axisymmetry caused by processing errors and assembly errors (for example, part of the structure is offset by a certain distance or angle relative to the axis of symmetry) is also within the scope of axisymmetry in the present application. The central symmetry in the present application is not absolute central symmetry, and the approximate central symmetry caused by processing errors and assembly errors (for example, part of the structure is offset by a certain distance or angle relative to the axis of symmetry) is also within the scope of central symmetry in the present application. This application does not make specific restrictions on this.

[0266] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the scope of the present application. Thus, if these modifications and modifications of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and modifications.

Claims

1. A foldable electronic device, comprising a display end portion, a system end portion and a hinge assembly, wherein the display end portion comprises a display end housing, the system end portion comprises a system end housing, the hinge assembly is arranged between the display end housing and the system end housing, and comprises a first connecting shaft, so that the display end housing and the first connecting shaft can rotate relative to the system end housing around a first axis, so that the display end portion can switch between a closed state and an open state relative to the system end portion, characterized in that: The system end housing is surrounded by a receiving cavity and includes a top and a bottom that are relatively spaced apart in the thickness direction thereof, the bottom is provided with a through hole, one end of the through hole is connected to the receiving cavity, and the other end extends to the bottom surface of the bottom, the foldable electronic device also includes: A foot pad, the foot pad is disposed in the accommodating cavity of the system end housing and is telescopically arranged in the through hole along a first direction so as to extend out of or retract into the system end housing; A transmission mechanism, the transmission mechanism is disposed in the accommodating cavity of the system end housing and is located between the first connecting shaft and the foot pad, and in response to the rotation of the first connecting shaft relative to the system end housing, the transmission mechanism can drive the foot pad to move relative to the system end housing along the first direction; When the display end portion switches from the closed state to the open state, driven by the first connecting shaft, the transmission mechanism links the foot pad to move along the first direction away from the top and gradually extend out of the system end housing; When the display end portion switches from the open state to the closed state, driven by the first connecting shaft, the transmission mechanism links the foot pad to move along the first direction toward the top and gradually retract into the system end shell.

2. The foldable electronic device according to claim 1, characterized in that: The transmission mechanism comprises a first rotating member and a sliding member, wherein the first rotating member is connected to the first connecting shaft and fixed relative to the first connecting shaft along its circumferential direction, and the sliding member is slidably connected to the accommodating cavity of the system end housing along a second direction; wherein the second direction is perpendicular to the first direction and the direction where the first axis is located; The sliding member includes a first transmission part and a second transmission part, the first transmission part can be transmission-connected with the first rotating member, the second transmission part has a sliding surface for the foot pad to slide, the sliding surface has a first end and a second end spaced apart in the second direction, and, in the first direction, the sliding surface extends from the first end to the second end toward a direction close to the bottom; In response to the rotation of the structure composed of the display end housing, the first connecting shaft and the first rotating member around the first axis, the first transmission part drives the sliding member to slide along the second direction, and under the cooperation between the sliding surface of the second transmission part and the foot pad, the foot pad moves along the first direction; When the display end portion switches from the closed state to the open state, the sliding member slides along the second direction, the foot pad slides from the first end of the sliding surface toward the second end, and moves along the first direction away from the top and gradually extends out of the system end shell.

3. The foldable electronic device according to claim 2, characterized in that: The transmission mechanism further includes a second rotating member, which is rotatably connected to the accommodating cavity of the system end housing via a second connecting shaft, so that the second rotating member can rotate relative to the system end housing around a second axis, wherein the second axis is parallel to the first axis; The second rotating member can be transmission-connected to the first rotating member and the first transmission part, so that the first transmission part can be transmission-connected to the first rotating member through the second rotating member, wherein the rotation direction of the second rotating member is opposite to the rotation direction of the first rotating member; In the second direction, the sliding surface extends from its first end to its second end in a direction away from the first transmission part; When the display end part switches from the closed state to the open state, the first rotating member is driven by the first connecting shaft to rotate around the first axis, and drives the second rotating member to rotate around the second axis, and through the transmission connection between the second rotating member and the first transmission part, the sliding member is driven to slide along the second direction away from the foot pad, and under the cooperation of the sliding surface of the second transmission part and the foot pad, the foot pad moves along the first direction away from the top and gradually extends out of the system end shell.

4. The foldable electronic device according to claim 3, characterized in that: The first rotating member is configured as a first gear, the second rotating member is configured as a second gear, the first transmission portion of the sliding member is configured as a rack, and the second gear can be meshed with the first gear and the rack.

5. The foldable electronic device according to claim 4, characterized in that: The rack extends along the second direction, and in the second direction, the rack and the second transmission part are arranged in sequence; When the display end portion is in the closed state, the second gear is located at an end of the rack away from the second transmission part; when the display end portion is in the open state, the second gear is located at an end of the rack close to the second transmission part.

6. The foldable electronic device according to claim 4, characterized in that: The first gear is an incomplete gear, and the second gear is a complete gear; When the display end part switches from a closed state to an open state, under the rotation of the first connecting shaft, the first gear is engaged with the second gear and the second gear is engaged with the rack, thereby driving the foot pad to move along the first direction away from the top and gradually extend out of the system end shell until the opening angle of the display end part is a preset angle, and the foot pad is extended to the maximum lifting height position relative to the system end shell, and the display end part continues to be opened, the first gear gradually disengages from the second gear, the second gear, the rack and the foot pad remain stationary relative to the system end shell, and the foot pad remains at the maximum lifting height position unchanged.

7. The foldable electronic device according to claim 2, characterized in that: In the second direction, the first transmission portion is located at a first end portion of the sliding member, and the second transmission portion is located at a second end portion of the sliding member.

8. The foldable electronic device according to claim 2, wherein: The sliding surface is configured as: an inclined plane inclined relative to a first plane, wherein the first plane is perpendicular to the first direction; The foot pad has a matching surface that is in sliding contact with the sliding surface, and the matching surface is configured as an inclined plane that is inclined relative to the first plane.

9. The foldable electronic device according to claim 8, characterized in that: The sliding surface is inclined at an angle of 15° to 85° relative to the first plane.

10. The foldable electronic device according to claim 2, characterized in that: The second transmission part is configured as a transmission block in a block-shaped structure, and the transmission block extends along the first direction and the second direction; The first end of the sliding surface extends to the top of the transmission block in the first direction, and the second end of the sliding surface extends to the front end or rear end of the transmission block in the second direction. The front end of the transmission block is an end of the transmission block in the second direction away from the first transmission part.

11. The foldable electronic device according to claim 2, characterized in that: The sliding member comprises two second transmission parts, and the two second transmission parts are arranged at intervals in the third direction; The sliding surfaces of the two transmission parts are respectively used to contact and slide with two side portions of the foot pad in the third direction, wherein the third direction is parallel to the direction where the first axis is located.

12. The foldable electronic device according to claim 11, characterized in that: In the third direction, the two second transmission parts are symmetrically arranged relative to the central part of the foot pad.

13. The foldable electronic device according to claim 2, characterized in that: The bottom surface of the sliding member is slidably connected to the bottom of the system end housing; The sliding member includes a connecting portion, the connecting portion is connected between the first transmission portion and the second transmission portion, the first transmission portion is located between the bottom of the system end housing and the first rotating member, and the second transmission portion and the connecting portion are located between the bottom and the top of the system end housing; When the sliding member includes two second transmission parts, the two second transmission parts and the connecting part together surround and form: a U-shaped groove with an opening facing away from the first transmission part, and at least a part of the foot pad is located in the U-shaped groove.

14. The foldable electronic device according to claim 2, wherein: When the display end portion is in the closed state, the foot pad abuts against the first end of the sliding surface; When the display end portion is in a closed state, the upper surface of the foot pad contacts the top, or there is a first gap between the upper surface of the foot pad and the top; wherein the upper surface of the foot pad is a surface of the foot pad facing the top.

15. The foldable electronic device according to claim 2, wherein: The foot pad includes a body and a contact portion, the body is disposed in the accommodating cavity of the system end housing, and is telescopically arranged in the through hole along the first direction to extend out of or retract into the system end housing, the contact portion protrudes outward from the outer side surface of one end of the body close to the top, and is located in the accommodating cavity of the system end housing; When the display end part is in a closed state, the contact portion abuts against the first end of the sliding surface; when the display end part switches from the closed state to the open state, the main body moves along the first direction in the through hole, and the contact portion slides from the first end to the second end of the sliding surface until the foot pad extends to the maximum lifting height position relative to the system end shell, and the contact portion abuts against the second end of the sliding surface and / or the bottom of the system end shell.

16. The foldable electronic device according to claim 15, characterized in that: The foot pad further includes a limiting portion, which protrudes outward from an outer side surface of an end portion of the body close to the top and is located in the accommodating cavity of the system end housing; When the foot pad is at the maximum lifting height position, the limiting portion abuts against the bottom of the system end shell along the first direction.

17. The foldable electronic device according to claim 16, wherein: The foot pad comprises two contact portions, and in the third direction, the two contact portions are symmetrically arranged relative to the body; The foot pad comprises two limiting portions, and in the second direction, the two limiting portions are symmetrically arranged relative to the body; The body is configured as a cylindrical structure.

18. The foldable electronic device according to claim 2, wherein: The foldable electronic device further comprises a first guide structure arranged corresponding to the limiting portion of each of the foot pads, each of the first guide structures is arranged in the accommodating cavity, and the limiting portion of the foot pad is slidably connected to the first guide structure along the first direction; The foldable electronic device further comprises a second guide structure disposed in the accommodating cavity, and the sliding member is slidably connected to the second guide structure along the second direction; When the foot pad is at the maximum lifting height position, the foot pad abuts against the second end of the sliding surface and the bottom of the system end shell, or, the foot pad abuts against the bottom of the system end shell and is detached from the sliding surface and is located on the side of the second end away from the first end, or, the foot pad abuts against the second end of the sliding surface.

19. The foldable electronic device according to any one of claims 1 to 18, characterized in that: An elastic member is provided between the foot pad and the top of the system end housing, one end of the elastic member abuts against the foot pad, and the other end abuts against the top; By means of the elastic force of the elastic member, the foot pad can be elastically abutted against the transmission mechanism along the first direction when the display end portion is in a closed state, and can be elastically abutted against the transmission mechanism and / or the bottom of the system end housing along the first direction when the display end portion is in an open state; when the display end portion is switched from the closed state to the open state, the elastic force of the elastic member can push the foot pad to move along the first direction away from the top and gradually extend out of the system end housing; When the transmission mechanism comprises a sliding member, and the sliding member has a sliding surface: When the display end portion is in the closed state, the foot pad is pressed against the sliding surface by the elastic member; when the display end portion is in the open state, the foot pad is pressed against the sliding surface and / or the bottom of the system end shell by the elastic member.

20. The foldable electronic device according to claim 19, characterized in that: The upper surface of the foot pad is inwardly concave to form a groove; the two ends of the elastic member are respectively in contact with the top of the system end housing and the bottom surface of the groove; The elastic member is a spring.

21. The foldable electronic device according to claim 20, characterized in that: The top of the system end shell protrudes inward to form a guide platform, and the elastic member is sleeved on the guide platform.

22. The foldable electronic device according to any one of claims 1 to 18, characterized in that: When the display end portion is in a closed state, the lower surface of the foot pad is flush with the bottom surface of the bottom portion; When the display end portion is in an open state and the opening angle is a first usage angle, the foot pad extends to a maximum lifting height position relative to the system end shell, and when the opening angle is a second usage angle, the foot pad remains at a maximum lifting height position, wherein the second usage angle is greater than the first usage angle.

23. The foldable electronic device according to any one of claims 1 to 18, characterized in that: The first direction is parallel to the thickness direction of the system end shell; The hinge assembly is arranged between the display end first side edge portion of the display end shell and the system end first side edge portion of the system end shell, and the foot pad is arranged at the system end first side edge portion of the system end shell or at a position close to the system end first side edge portion.

24. The foldable electronic device according to any one of claims 1 to 18, characterized in that: The rotating shaft assembly further includes a display end fixing member and a system end fixing member, the first connecting shaft is arranged between the display end fixing member and the system end fixing member, so that the display end fixing member and the first connecting shaft can rotate relative to the system end fixing member around the first axis, the display end fixing member is fixedly connected to the display end housing, and the system end fixing member is fixedly connected to the system end housing, so that the display end housing can rotate relative to the system end housing around the first axis through the display end fixing member and the first connecting shaft; The system end shell includes a first shell and a second shell that are arranged opposite to each other. The first shell and the second shell surround and form the accommodating cavity. The first shell includes the bottom of the system end shell, and the second shell includes the top of the system end shell.

25. The foldable electronic device according to any one of claims 1 to 18, characterized in that: The foldable electronic device comprises a plurality of the rotating shaft assemblies, and the plurality of the rotating shaft assemblies are arranged at intervals in the direction where the first axis is located; The foldable electronic device comprises a plurality of the transmission mechanisms and / or a plurality of the foot pads. In the direction where the first axis is located, the plurality of the foot pads are arranged at intervals, and the plurality of the transmission mechanisms are arranged at intervals.

26. The foldable electronic device according to any one of claims 1 to 18, characterized in that: The foldable electronic device is a notebook computer.

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