Foldable electronic devices

Abstract

The present application provides a foldable electronic device, comprising a display end portion, a system end portion, and a hinge assembly. The hinge assembly can enable the display end housing of the display end portion to rotate relative to the system end housing of the system end portion around a first axis, so that the display end portion switches between a closed state and an open state relative to the system end portion. The foldable electronic device also includes a foot pad and a transmission mechanism. When the display end portion switches between a closed state and an open state, the transmission mechanism links the foot pad to move along a first direction under the drive of the first connecting shaft of the hinge assembly to extend or retract the system end housing. The foldable electronic device provided by the present application can improve its heat dissipation performance while ensuring a flat appearance and a lightweight design.

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 and foldable phones) are increasingly popular among users due to their portability and versatility. To meet users' demand for extreme thinness and lightness, the internal space of these devices is constantly shrinking, resulting in a severe lack of heat dissipation space. Traditional cooling solutions, such as fans and heat pipes, are difficult to install in confined spaces, significantly reducing heat dissipation efficiency and, in turn, affecting device performance and lifespan.

[0003] In order to improve heat dissipation performance, some designs use external foot pads or partial elevation designs. By lifting the bottom of the foldable electronic device, the air circulation between the bottom surface of the bottom and the supporting surface (for example, the desktop) is increased, 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 the portability and lightweight design. In addition, the external foot pads may be at risk of falling off, and the partial elevation design may cause the device to be placed unstable, thereby 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 embodiments of the present application solves the problem that existing foldable electronic devices cannot improve 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 portion, a system end portion and a hinge assembly, the display end portion including a display end shell, the system end portion including a system end shell, the hinge assembly being arranged between the display end shell and the system end shell, and including 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 portion can switch between a closed state and an open state relative to the system end portion.

[0007] The system end shell is surrounded by a receiving cavity and includes a top and a bottom spaced apart from each other 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 disposed within a housing cavity of the system-side housing and is telescopically disposed through a through hole in a first direction to extend or retract into the system-side housing. The transmission mechanism is disposed within the housing cavity of the system-side housing and located between the first connecting shaft and the foot pad. In response to rotation of the first connecting shaft relative to the system-side housing, the transmission mechanism can drive the foot pad to move relative to the system-side housing in 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. Therefore, 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 needs. The angle is 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 is telescopically arranged in a first direction through a through hole at the bottom of the system end shell. 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, during the process of the display end part rotating from the closed state to the open state, that is, during the process of the foldable electronic device being unfolded, the transmission mechanism can move the foot pad along the first direction away from the top of the system end shell under the drive of the rotation of the first connecting shaft, and gradually extend out of the system end shell, or it can be understood that the lower surface of the foot pad (that is, the surface of the foot pad facing 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 support surface (that is, the placement plane, such as a table, desktop, etc.), the system end shell is lifted relative to the support 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 support 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 contraction 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, 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, in the folded state, the lower surface of the foot pad 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 first direction within the accommodating cavity is achieved by the rotation of the first connecting shaft during the folding or unfolding of the foldable electronic device itself, eliminating the need for other complex active mechanisms and maintaining a simple structure. Furthermore, the foot pad is linked to the transmission mechanism to achieve lifting of the system end portion. Both the transmission mechanism and the foot pad can be designed as reliable, compact components, making them easy to deploy and install within limited space. This eliminates the need for excessive internal space within the foldable electronic device, contributing to its lightweight and slim design.

[0015] Simply put, the transmission mechanism can convert the rotation of the first connecting axis in the foldable electronic device into the extension and contraction 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 raise 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 embodiments of the present application can improve heat dissipation performance while ensuring a flat appearance and a lightweight 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 connected to the accommodating cavity of the system end shell by sliding along the 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 connected to the first rotating member in transmission. 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. In the first direction, the sliding surface extends from its first end to the second end toward the 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 along the second direction, 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.

[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 toward the second end of the sliding surface, and moves along the first direction away from the top and gradually extends out of the system end shell.

[0022] Using the above solution, the first rotating member can transmit the rotation of the first connecting shaft to the sliding member, achieving displacement of the sliding member in the second direction. The sliding surface on the sliding member cooperates with the foot pad, causing the foot pad to slide in the first direction, thereby raising the system end portion and increasing heat dissipation space. Specifically, when the display end portion rotates from a closed state to an open state, the sliding member slides in the second direction, providing space for the foot pad to move away from the top of the system end housing, allowing the foot pad to spontaneously raise the system end portion. When the display end portion rotates from an open state to a closed state, the sliding member, driven by the first connecting shaft and the first rotating member, can slide in the second direction. The sliding surface contacts the foot pad, pushing the foot pad to gradually retract in the first direction and be stored within the accommodating cavity. This results in a simple transmission mechanism design that is easy to implement, eliminating the need for complex structures or power sources to achieve its function, thus saving internal space and reducing costs.

[0023] Furthermore, the sliding part realizes the retraction and lifting functions by cooperating with 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. It is simple to operate and has high reliability.

[0024] In a possible implementation, when the display end portion is in the 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 the second end of the sliding surface and the bottom of the system end shell, or the foot pad abuts the bottom of the system end shell and is separated from the sliding surface and is located on the side of the second end away from the first end, or the foot pad abuts the second end of the sliding surface.

[0026] In one 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, such that the second rotating member can rotate relative to the system-end housing about a second axis, wherein the second axis is parallel to the first axis. The second rotating member is transmission-connected to the first rotating member and the first transmission portion, such that the first transmission portion is 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 rotates around the first axis under the drive of the first connecting shaft, 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 toward the 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 part in sequence through the first rotating part and the second rotating part. The direction of movement can be changed through the cooperation of the second transmission part and the foot pad. In the process of unfolding the foldable electronic device, the sliding part slides along the second direction away from the foot pad under the joint action of the first rotating part and the second rotating part, that is, slides in the direction close to the first connecting shaft, which can reduce the layout space in the second direction. Its structure is simple, which can simplify the structure of the sliding part, thereby reducing the space occupied by the sliding part 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 engaged with the first gear and the rack.

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

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

[0034] With the above solution, the rack and the second transmission part are sequentially arranged in the second direction, occupying a small space. Moreover, 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 rotating 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 to a certain height from the bottom surface of the bottom of the system end shell, thereby lifting the system end part, thereby achieving stable support of the foldable electronic device on the support 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 one 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, the first connecting shaft rotates, and the first gear meshes with the second gear, and the second gear meshes with the rack, driving the foot pad to move in a first direction away from the top and gradually extend out of the system end housing until the display end portion is opened at a preset angle. The foot pad then extends to a maximum lift height relative to the system end housing. Continuing to open the display end portion, the first gear gradually disengages from the second gear, and the second gear, the rack, and the foot pad remain stationary relative to the system end housing, with the foot pad remaining unchanged at its maximum lift height.

[0037] With the above solution, when the display end portion switches from a closed state to an open state, the first gear engages with the second gear, and the second gear engages 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 portion reaches 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 disengages at the contact position with the second gear, so that the first connecting shaft can meet the different usage angles of the user while fully utilizing the thickness space in the accommodating cavity during continuous rotation, so that the foot pad reaches its maximum lifting height, and also reduces the space occupied by the system end portion due to the continuous movement of the slider in the second direction (for example, when the slider slides in the second direction away from the foot pad, sufficient sliding space needs to be reserved for the slider in the second direction, or the slider will slide out of the system end shell). The thickness of the system end portion and the internal space can be reasonably arranged to achieve a lightweight and thin design and appearance integrity of the foldable electronic device.

[0038] In one possible implementation, the preset angle is less than or equal to the first usage angle. This ensures that the foot pad remains at its maximum lift height when the display portion is opened at the first usage angle (which can be understood as the minimum usage angle within the comfortable usage angle range of the display portion) and at other usage angles greater than the first usage angle. Furthermore, when the display portion is opened at the preset angle and the foot pad reaches its maximum lift height, even if the display portion continues to be opened, the slider remains stationary and does not slide further in the second direction, thereby reducing the sliding space reserved for the slider in the second direction. Furthermore, even if different users have different comfortable usage angles, the foot pad can still lift the system portion to its maximum height, thereby ensuring its heat dissipation performance.

[0039] In a possible implementation, 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] With the above solution, the sliding member has a compact structure and a simple design, which is beneficial to reducing the space occupied by the transmission mechanism in the accommodating cavity and is beneficial to the lightweight and thin design of the foldable electronic device.

[0041] In one possible implementation, 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 mating surface in sliding contact with the sliding surface, wherein the mating 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 part 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; moreover, the sliding surface and the mating surface are both 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, the sliding surface is inclined at an angle of 15° to 85° relative to the first plane.

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

[0045] With this solution, the transmission block can fully utilize the thickness of the cavity, maximizing the maximum lift height of the foot pad, thereby ensuring sufficient heat dissipation space for the foldable electronic device. Furthermore, by providing a sliding surface on the transmission block, the movement of the transmission block in the second direction can be converted into displacement of the foot pad in the first direction through a simple structural coordination. This is easy to implement, occupies a small space, and fully utilizes the space to ensure the lift height of the foot pad.

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

[0047] 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 one possible implementation, the sliding member includes two second transmission parts, which are spaced apart in a third direction. The sliding surfaces of the two transmission parts are respectively configured to contact and slide with two sides of the foot pad in the third direction, wherein the third direction is parallel to the direction of the first axis.

[0049] With 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 solution, 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 one 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 connected between a first transmission portion and a 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 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 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 this solution, the arrangement of the sliding member and the first rotating member fully utilizes the space in the first direction within the accommodating cavity, resulting in a compact layout. Furthermore, the sliding member can provide a greater lift height for the foot pad within a limited space, making the solution more flexible and easier to implement. Furthermore, the sliding member connects the first transmission member and the second transmission member via a connecting portion, ensuring its own structural strength. The foot pad can be partially located within the U-shaped groove formed by the two second transmission members and the connecting portion, reducing the internal space occupied by the components in the accommodating cavity. This compact structure also ensures more stable sliding contact between the foot pad and the second transmission member, resulting in smoother sliding.

[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 a first gap exists 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 movement 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 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 arranged in the accommodating cavity of the system end shell and is telescopically arranged in the through hole along a first direction to extend or retract the system end shell. The contact portion protrudes outward from the outer surface of one end of the main body near the top and is located in the accommodating 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 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.

[0059] With the above solution, a contact portion is provided on the foot pad that abuts against the sliding surface of the sliding member. During the displacement of the foot pad, the contact portion can better cooperate with the displacement of the sliding member in the second direction, thereby achieving 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 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] With the above solution, the limiting portion 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, ensuring that the foot pad is stable and convenient to use.

[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 solution, 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 limiting 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 experience.

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

[0068] By adopting the above solution, 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 one possible implementation, the foldable electronic device further includes a first guide structure provided corresponding to the limiting portion of each foot pad, each first guide structure is provided 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 solution, 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 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 transmission mechanism function and enhance the user experience.

[0073] In one possible implementation, an elastic member is disposed between the foot pad and the top of the system-side housing. The elastic force of the elastic member causes the foot pad to elastically abut against the transmission mechanism along a first direction when the display portion is in a closed state, and to elastically abut against the transmission mechanism and / or the bottom of the system-side housing along the first direction when the display portion is in an open state. When the display portion switches from the closed state to the open state, the elastic force of the elastic member causes the foot pad to move along the first direction away from the top and gradually extend out of the system-side 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 will be pushed to move along the first direction away from the top and gradually extend out of the system end shell, thereby lifting the foldable electronic device. Moreover, when the display end part is in the open state, that is, in the process of supporting the foldable electronic device, the foot pad will not retract into the accommodating cavity due to the elastic force of the elastic member, and the support will be more stable. Moreover, 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 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 retraction of the foot pad slower and safer, avoiding damage caused by the instantaneous closure of the foldable electronic device, and can also provide users with a good feel, ensuring 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 respectively abut against the top of the system end housing and the bottom surface of the groove.

[0080] With the above solution, 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 small 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, 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 contraction 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 base.

[0085] By adopting the above solution, when the foldable electronic device is in a folded state, the foot pad is retracted and stored in the system end shell as a whole, and will 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, ensuring the lifting height of the foot pad while also facilitating the realization of lightweight design requirements.

[0086] In one possible implementation, when the display portion is in an open state and the opening angle is a first usage angle, the foot pad extends relative to the system housing to a maximum lift height position. When the opening angle is a second usage angle, the foot pad remains at the maximum lift height position, wherein the second usage angle is greater than the first usage angle. This ensures that the foot pad remains at the maximum lift height position when the display portion is opened at the first usage angle (the first usage angle may be understood as the minimum usage angle within the comfortable usage angle range of the display portion, for example, when the comfortable usage angle range is 100-150 degrees, the first usage angle is 100 degrees, and when the comfortable usage angle range is 110-150 degrees, the first usage angle is 110 degrees, and this is not limited in this embodiment of the present application) and at other usage angles greater than the first usage angle (for example, the second usage angle). In this way, even if different users have different comfortable usage angles, the foot pad can still lift the system portion to its maximum height position, thereby ensuring 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 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.

[0089] With the above solution, the foot pad and the transmission mechanism for realizing the movement function of the foot pad are arranged more compactly and are located closer 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 the 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 one 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 the direction where the first axis is located.

[0093] The foldable electronic device includes 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 structural diagram of a foldable electronic device in a folded state according to an embodiment of the present application;

[0097] 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;

[0098] Figure 1c This is a schematic side view of the foldable electronic device in a folded state according to an embodiment of the present application;

[0099] Figure 2 This is a structural diagram of the foldable electronic device in an intermediate state according to an embodiment of the present application;

[0100] Figure 3a This is a schematic structural diagram of a foldable electronic device in an unfolded state according to an embodiment of the present application;

[0101] Figure 3bThis is a structural schematic diagram of the foldable electronic device in the unfolded state from another perspective according to an embodiment of the present application;

[0102] Figure 3c This is a schematic side view of the structure of the foldable electronic device in the unfolded state according to an embodiment of the present application;

[0103] Figure 4 This is a schematic top view of the foldable electronic device in an unfolded state according to an embodiment of the present application (the second housing is removed in the figure);

[0104] 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;

[0105] Figure 5b for Figure 5a Schematic diagram of the cross-sectional structure along the middle line AA;

[0106] Figure 5c This is a schematic cross-sectional view of the partial structure of the foldable electronic device in the folded state, showing the cooperation between the foot pad and the sliding member;

[0107] Figure 6a 1 is a schematic diagram of the back structure of the foldable electronic device in the embodiment of the present application in the unfolded state, where the opening angle of the foldable electronic device is a first usage angle;

[0108] Figure 6b for Figure 6a Schematic diagram of the cross-sectional structure along the middle edge BB;

[0109] Figure 7a This is a partial cross-sectional structural diagram of the foldable electronic device in the embodiment of the present application in the unfolded state. At this time, 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;

[0110] Figure 7b This is a schematic cross-sectional view of the partial structure of the cooperation between the foot pad and the sliding member of the foldable electronic device in the unfolded state according to an embodiment of the present application;

[0111] Figure 8 This is a schematic diagram of a partial structure of the transmission mechanism of the foldable electronic device according to an embodiment of the present application during the folding process, where the opening angle of the foldable electronic device is a second use angle;

[0112] Figure 9a This is a partial structural diagram 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 usage angle;

[0113] Figure 9bThis is an exploded view of the local structure of the foldable electronic device in the unfolded state according to an embodiment of the present application;

[0114] Figure 9c This 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.

[0115] Figure 10a This is a structural principle diagram of another implementation of the transmission mechanism of the foldable electronic device in the folded state according to an embodiment of the present application;

[0116] Figure 10b This is a structural principle diagram of another implementation of the transmission mechanism of the foldable electronic device in the unfolded state according to an embodiment of the present application;

[0117] Figure 10c This is a structural principle diagram of another implementation of the transmission mechanism of the foldable electronic device in the folded state according to an embodiment of the present application;

[0118] Figure 10d This is a structural principle diagram of another implementation of the transmission mechanism of the foldable electronic device in the unfolded state according to an embodiment of the present application;

[0119] Figure 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;

[0120] Figure 11b This is a schematic side view of a sliding member in a foldable electronic device according to an embodiment of the present application;

[0121] Figure 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;

[0122] Figure 12b This is a schematic diagram of the local structure of the foot pad and the sliding member in the foldable electronic device of the present application embodiment. Figure 2 ;

[0123] Figure 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 an embodiment of the present application;

[0124] Figure 12d This is a schematic diagram of the local structure of the foot pad and the sliding member in the foldable electronic device of the present application embodiment. Figure 4 ;

[0125] Figure 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;

[0126] Figure 13This 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.

[0127] Description of reference numerals:

[0128] 1. Foldable electronic devices;

[0129] 2. Display terminal portion; 201. First side edge portion of the display terminal; 21. Display terminal housing; 22. Display screen;

[0130] 3. System side part;

[0131] 31. System end housing; 311. Top; 312. Bottom; 3121. Bottom surface; 313. First side edge of system end; 314. First housing; 315. Second housing;

[0132] 32. Accommodating cavity; 33. Through hole;

[0133] 34. Foot pad; 341. Mating surface; 342. Body; 343. Contact portion; 344. Limiting portion; 345. Groove; 3451. Groove bottom; 346. Upper surface; 347. Lower surface;

[0134] 35. Mounting seat; 351. Second connecting shaft;

[0135] 36. First guide structure; 361. First guide member;

[0136] 37. Second guide structure; 371. Second guide member; 38. Guide platform;

[0137] 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;

[0138] 5. Transmission mechanism; 51. First rotating member; 511. First gear;

[0139] 52. Sliding member; 5201. First end portion; 5202. Second end portion;

[0140] 521, first transmission part; 5211, rack;

[0141] 522, second transmission unit; 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;

[0142] 524, sliding surface; 5241, first end; 5242, second end;

[0143] 525, connecting portion; 526, U-shaped groove;

[0144] 53. Second rotating member; 531. Second gear;

[0145] 6. Elastic member; 7. Support surface;

[0146] O1, first axis; O2, second axis;

[0147] X1, third direction; Y1, second direction; Z1, first direction; Z2, thickness direction of the system end shell. DETAILED DESCRIPTION

[0148] With the widespread adoption of foldable electronic devices (such as laptops), the problem of insufficient internal heat dissipation space has become increasingly prominent. This is because the pursuit of lightweight and thin designs in foldable electronic devices has led to a continuous reduction in internal space. Furthermore, the increasingly complex electronic components required for high performance occupy a large layout space, making it difficult to obtain sufficient stacking space for the cooling system, which in turn affects the heat dissipation performance and reliability of the entire device. To address this heat dissipation challenge, existing technologies often use elevated foldable electronic devices to create a heat dissipation space between their bottom and the placement surface, thereby facilitating air circulation and improving heat dissipation. However, most such solutions rely on external feet, which either protrude from the bottom of the device or require additional installation. This not only compromises the device's appearance but also increases its size and weight, contradicting the ideal of a thin and lightweight design and reducing its portability. Therefore, achieving efficient heat dissipation without sacrificing a simple and lightweight design has become a key issue that needs to be addressed in the heat dissipation design of foldable electronic devices.

[0149] To solve the above-mentioned technical problems, an embodiment of the present application provides a foldable electronic device. By providing a transmission mechanism that is in transmission connection with the first connecting shaft of the hinge assembly, the transmission mechanism drives the foot pad to rise and fall as the hinge assembly rotates during the process of unfolding or folding the foldable electronic device. As a result, the foot pad can be lifted in the unfolded state to form a heat dissipation space between the bottom of the system end housing and the supporting surface (e.g., a desktop). In the folded state, the foot pad retracts, which can reduce the protrusion of the foot pad relative to the bottom surface of the system end housing, and can even prevent the foot pad from protruding from the bottom surface. This can further reduce or even prevent the foot pad from affecting the thickness and appearance of the entire device in the folded state. Therefore, it is possible to improve the heat dissipation performance of the foldable electronic device in the unfolded state while ensuring the flatness and lightweight design of the entire device in the folded state.

[0150] The foldable electronic devices provided in the embodiments of the present application may be, but are not limited to, foldable electronic products such as mobile phones, tablet computers, laptop computers, wearable devices, flip-top electronic dictionaries, flip-top handheld game consoles, and flip-top electronic instruments. The embodiments of the present application do not impose any particular restrictions on the specific form of the foldable electronic devices described above. For ease of explanation, the following description uses a laptop computer as an example.

[0151] The following first describes the basic structure of the foldable electronic device 1.

[0152] See also Figure 1a-Figure 5c , Figure 1a This is a structural diagram of a foldable electronic device in a folded state according to an embodiment of the present application. Figure 1b This is a structural diagram of the foldable electronic device in another perspective in the folded state according to an embodiment of the present application. Figure 1c This is a side view of the foldable electronic device in a folded state according to an embodiment of the present application. Figure 2 This is a structural diagram of the foldable electronic device in an intermediate state according to an embodiment of the present application. Figure 3a This is a structural diagram of a foldable electronic device in an unfolded state according to an embodiment of the present application. Figure 3b This is a structural diagram of the foldable electronic device in the unfolded state from another perspective according to an embodiment of the present application. Figure 3c This is a side view of the foldable electronic device in the unfolded state according to an embodiment of the present application. Figure 4 This is a schematic diagram of the structure of the foldable electronic device in the unfolded state according to an 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-sectional structure along the middle line AA, Figure 5c This is a schematic cross-sectional view of the partial structure of the cooperation between the foot pad and the sliding member when the foldable electronic device according to an embodiment of the present application is in the folded state.

[0153] like Figure 1a 、 Figure 2 、 Figure 3a As shown, the foldable electronic device 1 includes a display unit 2, a system unit 3, and a hinge assembly 4. The display unit 2 is primarily responsible for displaying images and videos and serves as the visual interface for user interaction with the foldable electronic device 1. The system unit 3 is the core of the foldable electronic device 1, responsible for processing data, running programs, and managing hardware resources.

[0154] Furthermore, the hinge assembly 4 is arranged between the display end part 2 and the system end part 3, so that the display end part 2 is rotatably connected to the system end part 3 through the hinge assembly 4, so that the display end part 2 and the system end part 3 can be rotated in opposite directions away from each other to open relatively, or can be rotated in directions toward each other to close relatively, that is, the display end part 2 can switch between an open state and a closed state relative to the system end part 3, and accordingly, the foldable electronic device 1 can switch between an unfolded state (corresponding to the display end part 2 being in an open state) and a folded state (corresponding to the display end part 2 being in a closed state).

[0155] That is to say, in different usage scenarios, the foldable electronic device 1 may have different states. Figure 1a-Figure 1c shows the foldable electronic device 1 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 (also understood as the in-use state), the display end portion 2 is opened at a certain angle relative to the system end portion 3, that is, a certain angle is formed between the display end portion 2 and the system end portion 3. In this state, 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 one 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 (this 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.

[0156] Those skilled in the art will appreciate that the opening angle of the foldable electronic device 1 can be adjusted according to the user's needs, that is, the display portion 2 can hover at any angle relative to the system portion 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 this embodiment of the present application does not limit this. When the display portion 2 rotates relative to the system portion 3 until it cannot rotate further, the foldable electronic device 1 is in the fully unfolded state. The opening angle of the foldable electronic device 1 in the fully unfolded state depends on the structure of the hinge assembly 4 and the structure of the foldable electronic device 1 itself. The specific opening angle of the fully unfolded state is not limited and can be 150°, 160°, 170°, etc., and this application does not limit this. In addition, the angles illustrated in the embodiments of the present application allow for slight deviations. For example, when the foldable electronic device 1 is in the fully unfolded state, its opening angle can be 150°, or approximately 150°, such as 151° or 149°. The same applies to other angles described below. When the foldable electronic device 1 is in a folded state, the angle between its display end part 2 and the system end part 3 can be approximately regarded as 0°. At this time, the display end part 2 and the system end part 3 can be stacked in the thickness direction of the system end part 3, and the thickness direction of the display end part 2 is parallel to or approximately parallel to the thickness direction of the system end part 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 part 3.

[0157] 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. 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 (AMOLED) display screen, or a quantum dot light-emitting diode (QLED) display screen. The embodiment of the present application does not limit the type and specific structure of the display screen 22.

[0158] Furthermore, the display end housing 21 is mainly used to protect the internal display screen 22 and other sensitive devices, and prevent external impacts, dust, liquids, etc. from damaging the display screen 22. 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 one 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.

[0159] It should be noted that the present application does not limit the material of the display end shell 21. It 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.

[0160] 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) mounted therein. Specifically, the system end housing 31 is surrounded by a housing cavity 32 and includes a top portion 311 and a bottom portion 312 spaced apart from each other along its thickness direction Z2. Various electronic components can be arranged within the housing cavity 32. The present embodiment does not limit the specific layout of the components within the housing cavity 32.

[0161] 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 it is placed, such as a countertop, table top, etc.) during use of the foldable electronic device 1. It 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. 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.

[0162] Furthermore, the specific structure and type of electronic components are not limited. In one example, a motherboard stack assembly can be disposed within the accommodating cavity 32 of the system-side housing 31. The motherboard stack assembly can be understood as the functional components in the system-side portion 3, and may include, for example, a battery, a host computer, a fan, a heat sink, a microphone, an antenna, etc., although this embodiment of the present application does not limit this.

[0163] The specific form of the host in the system end portion 3 is not limited. For example, it can be an integrated system including processing modules such as memory, power supply, optical drive, and a processor (Central Processing Unit, CPU). The processor can implement functions such as running the operating system, processing various data, running application programs, and controlling multiple hardware connected to the processor. Hardware such as a keyboard, touchpad, and mouse can be electrically connected to the processor to transmit user operation information to the processor, which then analyzes and calculates the corresponding instructions.

[0164] Furthermore, the top 311 of the system end portion 3 can be used to install components such as a keyboard and a touchpad to interact with the display screen 22 of the foldable electronic device 1.

[0165] 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 the relevant operations and map the operation interface to the display.

[0166] like Figure 3b 、 Figure 4 、 Figure 5b As shown, in one possible implementation, the system-end housing 31 includes a first housing 314 and a second housing 315 disposed opposite each other. The first housing 314 and the second housing 315 surround and form a housing cavity 32. The first housing 314 includes a bottom 312 of the system-end housing 31 (or it can be understood that at least a portion of the first housing 314 serves 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 a portion of the second housing 315 serves 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 has a trough-shaped structure, and the second housing 315 has a trough-shaped structure; in another example, the first housing 314 has a box-shaped structure, and the second housing 315 has a plate-shaped structure; in yet another example, the first housing 314 has a trough-shaped structure, and the second housing 315 has a plate-shaped structure.

[0167] It is 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 via the hinge assembly 4, allowing the display end housing 21 to rotate relative to the system end housing 31 about the first axis O1. It can be understood that by the hinge assembly 4 being rotatably connected between the display end housing 21 and the system end housing 31, 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 allowing the foldable electronic device 1 to switch between a folded state and an unfolded state.

[0168] 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 also in a closed state relative to the system-end portion 3. When the display-end housing 21 is in an open state relative to the system-end housing 31, the display-end portion 2 is also 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.

[0169] 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, as 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 spaced apart in the direction of the first axis O1. Moreover, the plurality of hinge assemblies 4 rotate synchronously to achieve 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 of the first axis O1. In other examples, the two hinge assemblies 4 can also be asymmetrically arranged in the direction of the first axis O1. It should be noted that the structures of the hinge assemblies 4 can 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 the other hinge assemblies 4 can also adopt this structure.

[0170] Furthermore, the layout position of the 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 .

[0171] 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.

[0172] 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.

[0173] Furthermore, the specific structure of the shaft assembly 4 is not limited. Figure 4 、 Figure 5b and Figure 5c As shown, the hinge assembly 4 includes a first connecting shaft 41, and the first connecting shaft 41 is arranged between the display end shell 21 and the system end shell 31, so that the display end shell 21 and the first connecting shaft 41 can rotate relative to the system end shell 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 shell 21 along its circumference, that is, there is no relative rotation between the first connecting shaft 41 and the display end shell 21. The first connecting shaft 41 can be understood as an axis extending in the direction of the first axis O1. It can be a solid shaft or a hollow shaft, and the embodiment of the present application does not limit this.

[0174] 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. 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 needs. The angle is flexible to ensure the user's usage experience.

[0175] like Figure 4 、 Figure 5b-5c As shown, in a possible implementation, the hinge assembly 4 may further 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.

[0176] When the display end shell 21 is subjected to an 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 needs of different users.

[0177] It can be understood that the first connecting shaft 41 is fixed relative to the display end fixing member 42 along its circumference, that is, no relative rotation will occur between the first connecting shaft 41 and the display end fixing member 42, because the display end fixing member 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 member 42 and the display end shell 21.

[0178] It should be noted that the method of fixing the display-end fixing member 42 to the display-end housing 21 is not limited. The two can be fixed by a detachable connection or a non-detachable connection. Correspondingly, the method of fixing the system-end fixing member 43 to the system-end housing 31 is not limited. The two can be fixed by a detachable connection or a non-detachable connection. The detachable connection method can be a screw connection, a clamping connection, etc., and the non-detachable connection method can be a welding connection, etc., which is not limited in this embodiment of the present application.

[0179] 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-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.

[0180] 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 one possible implementation, a first connecting shaft 41 is provided between the display-end fixing member 42 and the system-end fixing member 43. In other possible implementations, multiple first connecting shafts 41 located on the same straight line may be provided between the display-end fixing member 42 and the system-end fixing member 43. For example, two first connecting shafts 41 located on the same straight line may be 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 is not limited to this.

[0181] 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 FIG4 may also be a split structure, and the system end fixing members 43 of adjacent shaft assemblies 4 may be an integrated structure or a split structure (see FIG4 ). Figure 4 structure shown).

[0182] Furthermore, the specific structure of the display-side fixing member 42 is not limited, and the specific structure of the system-side fixing member 43 is also not limited. Figure 4 、 Figure 5b 、 Figure 9b As shown, in one 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. 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. The system-end mounting plate 431 is fixedly connected to the system-end housing 31. The first connecting shaft 41 passes through the display-end sleeve 422 and the system-end sleeve 432. The first connecting shaft 41 is fixed relative to the display-end sleeve 422 along its circumference and is rotatable relative to the system-end sleeve 432 along its circumference. The first connecting shaft 41 can rotate relative to the system-end sleeve 432 about the first axis O1, thereby allowing the display-end fixing member 42 and the first connecting shaft 41 to rotate relative to the system-end sleeve 432 about the first axis O1.

[0183] Furthermore, the display-end mounting plate 421 and the display-end sleeve 422 can be an integral structure or a separate structure with a fixed and detachable connection; the system-end mounting plate 431 and the system-end sleeve 432 can be an integral structure or a separate structure with a fixed and detachable connection. Furthermore, 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 can be the same or different.

[0184] 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.

[0185] The above primarily details the basic structure of foldable electronic device 1. It is understandable that as the performance of foldable electronic device 1 continues to improve, higher-performance electronic components are integrated within it. This significantly increases the heat generated during operation (particularly on the system side 3), placing higher demands on the overall heat dissipation performance of the device. However, to meet consumers' pursuit of portability and aesthetics, the design trend of foldable electronic devices 1 is increasingly leaning towards thinner and lighter designs. This makes traditional heat dissipation solutions, such as adding heat channels and cooling fans, difficult to implement within limited space.

[0186] Therefore, some technologies optimize heat dissipation by changing the device's placement angle. Specifically, by elevating the foldable electronic device 1 (forming a certain angle between the device and the support surface 7), additional heat dissipation space is created between the device's bottom 312 and the support surface 7, accelerating air circulation and increasing the heat exchange rate, thereby enhancing the device's heat dissipation capacity. One common method for optimizing heat dissipation is to provide foot pads 34 on the device's bottom 312 to elevate the device and create a heat dissipation space. However, the addition of foot pads 34 increases the overall thickness and volume of the device, hindering its storage and portability, and also diminishing the refined appearance of the foldable electronic device 1.

[0187] 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 the raised state and to be stored in the accommodating cavity 32 of the system end part 3 in the retracted state. While improving the heat dissipation performance of the entire machine in the unfolded state, it ensures the flatness and lightweight design of the entire machine in the folded state.

[0188] The following will describe in detail the structural principle of the foot pad 34 to achieve retraction and extension and lifting with reference to the accompanying drawings.

[0189] See also Figure 6a-Figure 7b , Figure 6a This is a schematic diagram of the back structure of the foldable electronic device in an embodiment of the present application in an unfolded state. At this time, the opening angle of the foldable electronic device is a first usage angle. Figure 6b for Figure 6a Schematic diagram of the cross-sectional structure along the middle line BB. Figure 7a This is a partial cross-sectional structural diagram of the foldable electronic device in the embodiment of the present application in the unfolded state. At this time, 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 partial 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.

[0190] like Figure 5b As shown, the foldable electronic device 1 further includes a foot pad 34 and a transmission mechanism 5, which are disposed within the accommodating cavity 32 of the system-side housing 31. A through hole 33 is defined in the bottom 312 of the system-side housing 31. One end of the through hole 33 communicates with the accommodating cavity 32, and the other end extends to the bottom surface 3121 of the bottom 312. The foot pad 34 is telescopically disposed through the through hole 33 along a first direction Z1 to extend or retract into the system-side housing 31.

[0191] 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 of the first axis O1, and the third direction X1 can be understood as the direction of the first axis O1, or it can be the length direction of the foldable electronic device 1. The embodiment of the present application does not limit this.

[0192] 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-side housing 31, the transmission mechanism 5 can drive the foot pad 34 to move relative to the system-side 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, thereby forming an additional heat dissipation space between the bottom surface 3121 of the bottom 312 of the system-side housing 31 and the support surface 7, thereby improving heat dissipation performance. In other words, the foot pad 34 is telescopically disposed in the through hole 33 of the bottom 312 of the system-side housing 31 in the first direction Z1. Driven by the rotation of the first connecting shaft 41, the transmission mechanism 5 allows the foot pad 34 to move along the first direction Z1 to extend or retract into the system-side housing 31.

[0193] Specifically, such as Figure 5a-5c 、 Figure 6a-6b 、 Figure 7a and Figure 7b As shown, the display end portion 2 is changed from the closed state (such as Figure 5b and Figure 5c position shown) to an open position (e.g. Figure 6b Position shown or Figure 7a When the foldable electronic device 1 is unfolded, the transmission mechanism 5 is 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 is moved 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 shown or Figure 7a The position shown in FIG. 3 ) can be understood as follows: the lower surface 347 of the foot pad 34 (i.e., the surface of the foot pad 34 facing away from the top 311 of the system-side housing 31) gradually protrudes from the bottom surface 3121 of the bottom 312 of the system-side housing 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-side housing 31 gradually increases, so that when the display end portion 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-side housing 31 by a certain height. Therefore, when the lower surface 347 of the foot pad 34 contacts the support surface 7 (i.e., the flat surface on which it is placed, such as a table or desk), the system-side housing 31 is lifted relative to the support surface 7, that is, the system-side housing 31 is lifted by a certain height. Therefore, the space formed between the lifted system-side housing 31 and the support surface 7 can serve as a heat dissipation space, thereby accelerating air circulation in the bottom 312 of the system-side housing 31, improving heat dissipation efficiency, and enhancing its reliability and safety in use.

[0194] 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 contraction of the foot pad 34 in the first direction Z1. This process is achieved spontaneously without the need to set up other power sources.

[0195] Further, 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), 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 FIG3 ) moves along the first direction Z1 toward the top 311, gradually retracting the system end housing 31 (for example, as shown in FIG3 ). Figure 5b shown in the location).

[0196] 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. 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.

[0197] Furthermore, the extension and retraction of the foot pad 34 in the first direction Z1 within the accommodating cavity 32 is achieved by the rotation of the first connecting shaft 41 during the folding or unfolding of the foldable electronic device 1, eliminating the need for other complex active mechanisms and maintaining a simple structure. Furthermore, the foot pad 34 is linked to the transmission mechanism 5 to achieve the lifting of the system end portion 3. Both the transmission mechanism 5 and the foot pad 34 can be designed as reliable, compact components, making them easy to deploy and install within limited space. Therefore, they do not occupy excessive space within the foldable electronic device 1, contributing to the electronic device's lightweight and slim design.

[0198] Simply put, the transmission mechanism 5 can convert the rotation of the first connecting shaft 41 in the foldable electronic device 1 into the extension and contraction 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, during the unfolding process of the foldable electronic device 1, 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. During the folding process of the foldable electronic device 1, 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.

[0199] On the other hand, the foot pad 34 can also raise the foldable electronic device 1 to a certain angle while supporting it, making keyboard operation more natural and comfortable, and 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.

[0200] 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 lightweight and thin design.

[0201] In one possible implementation, Figure 5b As shown, when the display portion 2 is in the closed state, the lower surface 347 of the foot pad 34 (which can be understood as the surface of the foot pad 34 facing away from the top portion 311) is flush with the bottom surface 3121 of the base portion 312. This allows the foldable electronic device 1 to be completely retracted and stored within the system housing 31 when the foldable electronic device 1 is folded, without protruding from the bottom surface 3121 of the base portion 312 of the system housing 31. This ensures the integrity of the foldable electronic device 1's appearance. Furthermore, the foot pad 34 fully utilizes the thickness of the system housing 31, ensuring the height of the foot pad 34 while also facilitating a lightweight and thin design.

[0202] In other possible implementations, when the display portion 2 is in the closed state, the lower surface 347 of the foot pad 34 may not be flush with the bottom surface 3121 of the base 312, and this is not a limitation in the present embodiment. In one example, the lower surface 347 of the foot pad 34 slightly protrudes from the bottom surface 3121 of the base 312 of the system-side housing 31. In this case, the foot pad 34 has a higher elevation, which helps improve the system's heat dissipation capabilities. In another example, the lower surface 347 of the foot pad 34 may also be located within the system-side housing 31.

[0203] In one possible implementation, Figure 6a and Figure 6bAs shown, when the display end portion 2 is in the open state and the opening angle is the first use angle, the foot pad 34 is extended to the maximum lifting height position relative to the system end housing 31. When the display end portion 2 continues to open, for example, the opening angle is the second use angle (see Figures 7a and 7b ), the foot pad 34 remains at its maximum lift height, where the second usage angle is greater than the first usage angle. This ensures that the foot pad 34 remains at its maximum lift height when the display end portion 2 is opened at the first usage angle and at other usage angles greater than the first (for example, the second usage angle). This ensures that, even if different users have different comfortable usage angles, the foot pad 34 can still lift the system end portion 3 to its maximum height, ensuring its heat dissipation performance.

[0204] 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.

[0205] In other possible implementations, when the display end portion 2 is in the open state and the opening angle is the 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 part 2 continues to be opened, and the foot pad 34 may continue to extend outward relative to the system end shell 31. This embodiment of the present application does not limit this.

[0206] It should be noted that the embodiments of the present application do not limit the number of foot pads 34 and transmission mechanisms 5. For example, there can be one or more foot pads. In one 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), the multiple foot pads 34 are spaced apart, and the multiple transmission mechanisms 5 are spaced apart. In this way, the multiple transmission mechanisms 5 and multiple foot pads 34 are arranged in a coordinated manner near the location of the hinge assembly 4, ensuring that the foot pads 34 lift and support the stability of the foldable electronic device 1, thereby improving the user experience.

[0207] 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 transmission efficiency and ensure synchronization during the lifting process of the foot pads 34 to avoid shaking, etc.

[0208] 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 accompanying drawings.

[0209] It should be noted that the present embodiment does not restrict the placement of the foot pad 34. In one possible implementation, the foot pad 34 is positioned on the system-side first side edge 313 of the system-side housing 31. This allows the foot pad 34 and the transmission mechanism 5 that enables its movement to be located within the accommodating cavity 32, relatively close to the hinge assembly 4. This arrangement is more compact, facilitating a lightweight and thin design for the foldable electronic device 1. It is understood that the transmission mechanism 5 can be appropriately positioned based on the specific location of the foot pad 34, and this embodiment does not impose any restrictions on this.

[0210] 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. It 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.

[0211] Furthermore, the embodiment of the present application does not limit the height of the foot pad 34. In one 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) contacts the top 311. At this time, the foot pad 34 makes full use of the thickness space in the accommodating cavity 32, which can increase the moving stroke of the foot pad 34 in the first direction Z1, thereby making the maximum lifting height of the foot pad 34 larger, taking into account the lightweight design of the foldable electronic device 1 while increasing the heat dissipation space to ensure safety and reliability in use.

[0212] In other possible implementations, when the display end portion 2 is in the closed state, a first gap may be provided between the upper surface 346 of the foot pad 34 and the top portion 311, i.e., the upper surface 346 of the foot pad 34 does not contact the top portion 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 comprehensively consider and set the value based on 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.

[0213] It can be understood that under the solution of using retractable foot pads 34 to achieve lifting and supporting 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 pads 34 is limited by the thickness of the system end shell 31, which 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 pads 34 can make full use of the thickness of the system end shell 31, so that the foot pads 34 have reached the maximum lifting height when the foldable electronic device 1 is used at a comfortable angle for the user, ensuring the user experience and the heat dissipation performance of the foldable electronic device 1.

[0214] The above mainly introduces the extension and retraction process of the foot pad 34 in detail. The following will explain the specific structure of the transmission mechanism 5 in conjunction with the accompanying drawings.

[0215] 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 This is a partial structural diagram of the foldable electronic device in the embodiment of the present application in the unfolded state. At this time, the opening angle of the foldable electronic device is the second usage angle. Figure 9b This is an exploded view of the local structure of the foldable electronic device in the unfolded state according to the embodiment of the present application. Figure 9c This is a partially enlarged structural diagram of the sliding surface of the foldable electronic device in an embodiment of the present application. At this time, the opening angle of the foldable electronic device is smaller than the first usage angle. Figure 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. Figure 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. Figure 10c This is a structural principle diagram of another implementation of the transmission mechanism of the foldable electronic device in the folded state according to an embodiment of the present application. Figure 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.

[0216] 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.

[0217] 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 circumferential direction. That is, the first rotating member 51 can rotate in the same direction as the first connecting shaft 41. 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.

[0218] In one 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.

[0219] 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 portion 521 and a second transmission portion 522 , and the first transmission portion 521 can be transmission-connected to the first rotating member 51 .

[0220] The second transmission portion 522 includes a sliding surface 524 for the foot pad 34 to slide on. The sliding surface 524 includes a first end 5241 and a second end 5242 spaced apart in the second direction Y1. Furthermore, in the first direction Z1, the sliding surface 524 extends from the first end 5241 to the second end 5242 toward the bottom 312. The specific structures of the first transmission portion 521 and the second transmission portion 522 will be described in detail below with reference to the accompanying drawings.

[0221] Specifically, such as Figure 5b-5c 、 Figure 9a and Figure 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 about the first axis O1, the first transmission portion 521 drives the sliding member 52 to slide along the second direction Y1. Under the cooperation of the sliding surface 524 of the second transmission portion 522 and the foot pad 34, the foot pad 34 moves along the first direction Z1. In other words, when a user applies a force to the display end housing 21, the display end housing 21 and the first connecting shaft 41 rotate about the first axis O1 relative to the system end housing 31. The first rotating member 51 can transmit the rotation of the first connecting shaft 41 to the sliding member 52, thereby achieving displacement of the sliding member 52 in the second direction Y1. The sliding surface 524 on the sliding member 52 cooperates with the foot pad 34, causing the foot pad 34 to slide along the first direction Z1.

[0222] 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 .

[0223] like Figure 5b 、 Figure 6b and Figure 7a As shown, combined Figure 9c ( Figure 9c The opening angle shown in Figure 6b ) is understood as the first use angle shown in FIG. 2 , when the display end portion 2 is moved from the closed state (as Figure 5b position shown) 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, thereby increasing the heat dissipation space.

[0224] like Figure 5b 、 Figure 6b and Figure 8 As shown, when the display end portion 2 is 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 rotating the first connecting shaft 41 and the first rotating member 51, the sliding member 52 can slide in the second direction Y1, and through the sliding surface 524, it can slide in contact with the foot pad 34, pushing the foot pad 34 to gradually retract in the first direction Z1 and be stored in the accommodating cavity 32. In this way, the transmission mechanism 5 has a simple design and is easy to implement. It does not require the addition of complex structures or power sources to achieve its function, which can save internal space and save costs. Furthermore, the sliding member 52 achieves its retraction and lifting functions through the cooperation with the foot pad 34 through the sliding surface 524. The sliding surface 524 has a simple structure and process, and can achieve stable and reliable motion conversion without the addition of other complex mechanisms. It is simple to operate and highly reliable.

[0225] In one possible implementation, Figure 7b and Figure 9a As shown, 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 Figure 10b ), and is located on the 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.

[0226] It should be noted that the first transmission portion 521 can be directly connected to the first rotating member 51 (for example, Figure 10a-Figure 10b The structure shown in FIG. 1 may also be formed by other components (for example, Figure 7a The second rotating member 53) 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, Figure 10a and Figure 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 gradual unfolding of the foldable electronic device 1, 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.

[0227] In another example, Figure 7aAs shown, the first transmission portion 521 and the first rotating member 51 are indirectly connected to each other through contact. Specifically, the transmission mechanism 5 also includes a second rotating member 53. The second rotating member 53 is rotatably connected to the accommodating cavity 32 of the system-end housing 31 via the second connecting shaft 351, so that the second rotating member 53 can rotate relative to the system-end housing 31 about the second axis O2. The second axis O2 is parallel to the first axis O1. Furthermore, the second rotating member 53 is transmission-connected to the first rotating member 51 and the first transmission portion 521, so that the first transmission portion 521 is transmission-connected to the first rotating member 51 through the second rotating member 53.

[0228] 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 .

[0229] like Figure 5b-Figure 7b As shown, when the display end portion 2 is from the closed state (such as Figure 5b position shown) to an open position (e.g. Figure 6b or Figure 7a When the position (shown) is switched, driven by the first connecting shaft 41, the first rotating member 51 rotates about the first axis O1, driving the second rotating member 53 to rotate about the second axis O2. Through the transmission connection between the second rotating member 53 and the first transmission portion 521, the sliding member 52 is driven to slide along the second direction Y1, away from the foot pad 34. With the cooperation of the sliding surface 524 of the second transmission portion 522 and the foot pad 34, the foot pad 34 moves along the first direction Z1, away from the top 311, and gradually extends out of the system end housing 31. In other words, the rotational motion of the first connecting shaft 41 is sequentially transmitted to the first transmission portion 521 and the second transmission portion 522 of the sliding member 52 via the first rotating member 51 and the second rotating member 53. The direction of motion can be changed through the cooperation of the second transmission portion 522 and the foot pad 34.

[0230] Specifically, such as Figure 5b-Figure 7bAs shown, during the unfolding of the foldable electronic device 1, the first connecting shaft 41 rotates clockwise about the first axis O1, causing the first rotating member 51 to also rotate clockwise about the first axis O1, driving the second rotating member 53 to rotate counterclockwise about the second axis O2. The sliding member 52 then slides in the second direction Y1, away from the foot pad 34, i.e., toward the first connecting shaft 41. At this time, the second transmission portion 522 frees up displacement space in the first direction Z1 during its sliding in the second direction Y1, allowing the foot pad 34 to slide in the first direction Z1 toward the bottom 312 of the system-side housing 31, thereby raising the system-side housing 31 and increasing heat dissipation space. Furthermore, the sliding member 52 reduces the layout space in the second direction Y1 (or, more accurately, the length of the sliding member 52). Its simple structure simplifies the structure of the sliding member 52, thereby reducing the space occupied by the sliding member 52 within the accommodating cavity 32, facilitating a slimmer design for the foldable electronic device 1.

[0231] 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.

[0232] It is understood that when the foot pads 34 are supporting and lifting the foldable electronic device 1, the device will inevitably be subjected to external forces, and due to the weight of the foldable electronic device 1 itself, the foot pads 34 will tend to retract into the accommodating cavity 32. Therefore, the structural components can be designed to ensure that the foot pads 34 can stably support the system end housing 31 of the foldable electronic device 1 during the lifting process, avoiding the possibility of shaking or sudden falling, which may damage the foldable electronic device 1.

[0233] In one possible implementation, Figure 9a and Figure 9c As shown, an elastic member 6 may be provided 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.

[0234] It should be noted that the specific position of the elastic member 6 is not limited. In one example, 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 abut against the top 311 of the system-side housing 31 and the bottom surface 3451 of the groove 345, respectively. Thus, the elastic member 6 is disposed within the groove 345. When the display end portion 2 is in the closed state, the elastic member 6 can be partially accommodated within the groove 345, allowing the upper surface 346 of the foot pad 34 to directly contact or have a small gap with the top 311 of the system-side housing 31. This ensures that the foot pad 34 has sufficient travel during movement, thereby increasing the maximum height that the foot pad 34 can lift the system-side housing 3, increasing the heat dissipation space at the bottom 312 of the system-side housing 3, and improving the heat dissipation performance of the foldable electronic device 1. In another example, the elastic member 6 can also be disposed between the upper surface 346 of the foot pad 34 and the lower surface 347 of the top 311, in which case the elastic member 6 is not accommodated within the foot pad 34. It is understandable that the above-mentioned groove 345 may not be provided in the foot pad 34, and this embodiment of the present application does not limit this.

[0235] 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 can be lifted downward under the action of its own gravity, and the foot pad 34 can 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.

[0236] It should be noted that the type of elastic member 6 is not limited. In one possible implementation, the elastic member 6 is a spring. In other possible implementations, the elastic member 6 can also be a material that can be elastically deformed, such as rubber.

[0237] Furthermore, the positioning method of the elastic member 6 is not limited. Figure 7a As shown, in one 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 mounted on the guide platform 38. With this structure, the guide platform 38 can reduce or avoid the deviation of the elastic member 6 that may occur during the expansion and contraction process in the first direction Z1, ensuring the accuracy of the movement of the foot pad 34 and improving the user experience.

[0238] 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 part 2 is in the 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 part 2 is in the open state. When the display end part 2 switches from the closed state to the open state, the elastic force of the elastic member 6 can push the foot pad 34 to move along the first direction Z1 in the direction away from the top 311 and gradually extend out of the system end shell 31.

[0239] 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 Figure 9c ), or elastically abuts against the bottom 312 of the system end housing 31 (see Figure 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.

[0240] Further, 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 the 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 the open state, the foot pad 34 is pressed against the sliding surface 524 by the elastic member 6 (see Figure 9c ), or the elastic member 6 presses the foot pad 34 against the bottom 312 (see Figure 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.

[0241] That is to say, if Figure 5b-5c as well as Figure 6a-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 pushes the foot pad 34 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.

[0242] And, as 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 affected by the elastic force of the elastic member 6 and will not retract into the accommodating cavity 32, so 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 lift, and this process is carried out in one direction.

[0243] like Figure 8 As shown, when the slider 52 slides in the second direction Y1 toward the side close to the foot pad 34, the second transmission portion 522 pushes the foot pad 34 toward the side of the top 311 of the system-side housing 31 (i.e., pushes the foot pad 34 toward the top 311 of the system-side housing 31), continuously compressing the elastic member 6. The slider 52 helps the foot pad 34 overcome the elastic force of the elastic member 6. This process allows the foot pad 34 to retract slowly and safely, avoiding damage caused by the instantaneous closure of the foldable electronic device 1. It also provides the user with a good feel and ensures the user's experience. On the other hand, the stacked design of the foot pad 34, the elastic member 6, and the top 311 of the system-side housing 31 occupies a relatively compact space in the first direction Z1, which is conducive to the lightweight and thin design of the foldable electronic device 1.

[0244] The first rotating member 51 and the second rotating member 53 will be described in detail below with reference to the accompanying drawings.

[0245] 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 one 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 engaged with the first gear 511 and the rack 5211. With this structure, the sliding member 52 has higher transmission efficiency through the gear transmission and the structure of the gear rack 5211. It has a compact structure, stable transmission, high reliability, and is conducive to cooperation with the first connecting shaft 41, convenient installation, and low cost.

[0246] Specifically, the rack 5211 extends along the second direction Y1. In the second direction Y1, the rack 5211 and the second transmission portion 522 are sequentially arranged. It should be noted that the present embodiment does not limit the arrangement direction of the multiple teeth on the rack 5211. The teeth on the first gear 511 or the second gear 531 can be appropriately arranged to accommodate the translational requirements of the foot pad 34 and achieve displacement of the transmission mechanism 5 in the second direction Y1.

[0247] Further, 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 or may not be in contact with the first gear 511, and this embodiment of the application is not limited to this.

[0248] like Figure 6a and Figure 6b 、 Figure 7a As shown, when the display end portion 2 is from the closed state (such as Figure 5b position shown) 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 along the second direction Y1 toward one side of the first connecting shaft 41 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.

[0249] 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 is understandable that as the foot pad 34 is continuously extended and lifted, the rack 5211 is continuously moving. In one possible implementation, the rack 5211 is still within the accommodating cavity 32 during its continuous movement. That is, when the display end portion 2 is in the closed state, the rack 5211 is entirely located within the accommodating cavity 32. When the display end portion 2 is in the open state, the rack 5211 is still entirely located within the accommodating cavity 32. In other possible implementations, when the display end portion 2 is in the open state, the rack 5211 may also partially and gradually slide out of the accommodating cavity 32, that is, partially located within the accommodating cavity 32 and partially located outside the accommodating cavity 32. In this case, a hole is provided on the side wall of the system end housing 31, and the hole allows the rack 5211 to pass through. This embodiment of the present application is not limited to this.

[0250] That is to say, if Figure 5b 、 Figure 6band Figure 7a As shown, the rack 5211 and the second transmission portion 522 are arranged sequentially in the second direction Y1, occupying a relatively small space. Furthermore, as the foldable electronic device 1 moves from closed to open to a comfortable use angle, the rack 5211, under the action of the first rotating member 51 and the second rotating member 53, moves away from the foot pad 34, allowing the foot pad 34 to move in the first direction Z1. This allows the foot pad 34 to move away from the top 311 of the system-side housing 31, gradually protruding above the bottom surface 3121 of the bottom 312 of the system-side housing 31 by a certain height, thereby raising the system-side portion 3. This ensures stable support of the foldable electronic device 1 on the support surface 7 while also improving heat dissipation efficiency. Furthermore, the rack 5211 is positioned according to the sliding distance of the slider 52 within the accommodating cavity 32, cooperating with the rotation of the second gear 531. This achieves high reliability and a relatively stable structure. It also fully utilizes the length of the accommodating cavity 32 in the second direction Y1, eliminating the need for a large layout space. This improves the integration of the transmission mechanism 5 and facilitates the lightweight and thin design of the foldable electronic device 1.

[0251] It should be noted that if Figure 10a and Figure 10b As shown, in other possible implementations, the first gear 511 may also be directly connected to the rack 5211 in a transmission manner. 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.

[0252] It is understood that the movement 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 is rotated from the closed state to the open state and the opening angle is the first use angle (i.e., Figure 6b ), 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.

[0253] Furthermore, in one possible implementation, the first gear 511 is a partial gear, and the second gear 531 is a complete gear. A complete gear is a gear whose teeth are evenly distributed throughout its circumference. It is typically used for continuous transmission and has a large number of teeth, enabling stable, continuous power transmission. An partial gear is a gear whose teeth are not distributed throughout its circumference, enabling intermittent motion.

[0254] 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 engaged with the second gear 531, and the second gear 531 is engaged 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 (as shown). Figure 6b As shown), 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 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.

[0255] 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 engaged 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-engaged state, that is, the first rotating member 51 will not continue to drive the second rotating member 53 to rotate, the sliding member 52 stops 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.

[0256] When the display terminal portion 2 is changed from the open state (e.g., Figure 7a and Figure 7b position shown) to the closed position (as shown Figure 5b and Figure 5c As shown in FIG), 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, as shown in FIG). Figure 6b The second gear 531 is engaged 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 location).

[0257] 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 engaged with the second gear 531, and the second gear 531 is engaged with the rack 5211. 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 reaches a preset angle. The foot pad 34 extends to the maximum lifting height position relative to the system end housing 31, and the display end portion 2 continues to be opened. 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 to meet the user's needs. While allowing users to use the device at different angles, the thickness space in the accommodating cavity 32 is fully utilized, so that the foot pad 34 reaches its maximum lifting height, and the space occupied by the system end part 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), so that the thickness of the system end part 3 and the internal space can be reasonably arranged to achieve a lightweight design and appearance integrity of the foldable electronic device 1.

[0258] 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.

[0259] 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 one possible implementation, when the foldable electronic device 1 is in the folded state (i.e., the display end portion 2 is in the closed state), the first gear 511 is engaged with the second gear 531, and the second gear 531 is engaged with the rack 5211. In other possible implementations, when the foldable electronic device 1 is in the folded state, the first gear 511 can be disengaged from the second gear 531, and when it is unfolded at a certain angle (e.g., Figure 2 After the first connecting shaft 41 rotates and the first gear 511 is moved to the position shown in the figure, the first gear 511 can also be driven by the rotation of the first connecting shaft 41 to start engaging with the second gear 531, and gradually drive the sliding member 52 to slide to realize the displacement of the foot pad 34 in the first direction Z1. This embodiment of the present application does not limit this.

[0260] In one possible implementation, Figure 6bAs shown, the above-mentioned 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.

[0261] 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 comfortable use needs of most users.

[0262] 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 .

[0263] 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 method, a mounting seat 35 is provided in the accommodating cavity 32, and the mounting seat 35 is fixedly connected to the side surface of the bottom 312 close to the top 311. The second rotating member 53 is rotatably connected to the mounting seat 35 through the second connecting shaft 351.

[0264] The sliding member 52 will be described in detail below with reference to the accompanying drawings.

[0265] See also Figure 11a and Figure 11b , Figure 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. Figure 11b This is a side structural schematic diagram of a sliding member in a foldable electronic device according to an embodiment of the present application.

[0266] 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 spaced apart 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, which can achieve stable support. 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 asymmetrically arranged, and the embodiments of the present application are not limited to this.

[0267] 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 Figure 9c As shown, in one possible implementation, in the second direction Y1, the first transmission portion 521 is located at the first end 5201 of the sliding member 52, and the second transmission portion 522 is located at the second end 5202 of the sliding member 52. This results in a compact structure and simple design for the sliding member 52, which helps reduce the internal space occupied by the transmission mechanism 5 in the accommodating chamber 32 and facilitates the lightweight design of the foldable electronic device. In other possible implementations, in the second direction Y1, the first transmission portion 521 and the second transmission portion 522 can also be located at positions other than the ends, which is not limited in this embodiment of the present application.

[0268] Further, if Figure 11a and Figure 11b As shown, in one possible implementation, the sliding member 52 may further 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 being located between the bottom 312 of the system end housing 31 and the first rotating member 51, and the second transmission portion 522 and the connecting portion 525 being located between the bottom 312 and the top 311 of the system end housing 31.

[0269] Specifically, such as Figure 9a 、 Figure 11a-Figure 11bAs shown, the two second transmission parts 522 and the connecting part 525 together form a U-shaped groove 526 with an opening facing away from the first transmission part 521, and at least a portion of the foot pad 34 is located within 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 within the accommodating chamber 32, has a compact layout, and can provide the foot pad 34 with a larger lifting height within a limited space, making the solution more flexible and easy to implement. Furthermore, the sliding member 52 connects the first transmission part 521 and 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 internal space occupied by the components in the accommodating chamber 32. The compact structure can also make the sliding contact between the foot pad 34 and the second transmission part 522 more stable and the sliding smooth.

[0270] It should be noted that, during the rotation of the first connecting shaft 41, the foot pad 34 may be located entirely within the U-shaped groove 526 or partially within the U-shaped groove 526 (see FIG. Figure 9a ), and may not be located within the U-shaped groove 526, which is not limited in this embodiment of the present application. In one example, the sliding member 52 slides in the second direction Y1 toward a side away from the foot pad 34, so that the foot pad 34 is pressed against the bottom 312 and is entirely located outside the U-shaped groove 526 (not shown in the figure).

[0271] In other possible implementations, such as Figure 10c and Figure 10d As shown, the sliding member 52 may also 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. The sliding member 52 may also be provided with a second transmission portion 522, which is not limited in this embodiment of the present application.

[0272] 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 Figure 9c As shown, the second transmission portion 522 is configured as a block-shaped transmission block 523, which extends along the first direction Z1 and the second direction Y1. With this structure, the transmission block 523 can fully utilize the thickness of the receiving cavity 32 and maximize the maximum lifting height of the foot pad 34, thereby ensuring that the foldable electronic device 1 has sufficient heat dissipation space.

[0273] like Figure 11a and Figure 11bAs shown, in one example, the transmission block 523 has an upper top surface 5231A and a lower bottom surface 5232A disposed opposite to each other in a first direction Z1, and a front end surface 5235 and a rear end surface 5236 disposed opposite to each other in a second direction Y1. The upper top surface 5231A of the transmission block 523 is disposed toward the top 311 of the system-end housing 31, and the lower bottom surface 5232A of the transmission block 523 is disposed 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. 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, thereby ensuring 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 for use.

[0274] In other possible implementations, the second transmission portion 522 may also be a truncated cone-shaped or conical transmission structure, which is not limited in the embodiment of the present application.

[0275] The sliding surface 524 will be described in detail below with reference to the accompanying drawings.

[0276] See also Figure 12a-12e , Figure 12a-12e This is a partial structural diagram of different structural forms of the foldable electronic device foot pad and the sliding member in the embodiment of the present application.

[0277] 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 .

[0278] 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. Figure 11a and Figure 11bAs shown, in one 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. This is easy to implement, occupies little space, and can fully utilize the space to ensure the lifting height of the foot pad 34. In other possible implementations, such as Figure 10a and Figure 10b As shown, the second end 5242 of the sliding surface 524 can also extend to the rear end 5234 of the transmission block 523 in the second direction Y1 (the rear end 5234 can be the rear end surface, rear end edge or rear end point), and this embodiment of the application is not limited to this.

[0279] like Figure 11a As shown, in one example, the top end 5231 of the transmission block 523 in the first direction Z1 can be an upper top surface 5231A, so that the first end 5241 of the sliding surface 524 can extend to the upper top surface 5231A of the transmission block 523, and the front end 5233 of the transmission block 523 can be a front end surface 5235, so that the second end 5242 of the sliding surface 524 can extend to the front end surface 5235 of the transmission block 523. In other examples, such as Figures 10a to 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.

[0280] 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 Figure 11b and Figure 12a ), or a multi-segment plane (see Figure 12b ), that is, the sliding surface 524 has a tendency to tilt toward the bottom 312 of the system end housing 31 as a whole. The first plane is perpendicular to the first direction Z1.

[0281] In an example, Figure 5c and Figure 7bAs shown, the sliding surface 524 is configured as an inclined plane inclined relative to the first plane. Correspondingly, the foot pad 34 has a mating surface 341 that is in sliding contact with the sliding surface 524. The mating surface 341 is configured as an inclined plane inclined relative to the first plane. When the foot pad 34 switches between the retracted position and the extended and raised position, the sliding surface 524 at least partially contacts the mating surface 341.

[0282] 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 along the first direction Z1 toward the bottom 312. When the foot pad 34 is in the extended and raised position, the mating surface 341 of the foot pad 34 can slide out of the sliding surface 524 (see Figure 10b ), and may also be in contact with the sliding surface 524 (see Figure 10d ), the embodiments of the present application do not impose any restrictions on this. That is to say, the sliding surface 524 tilted on the sliding member 52 and the mating surface 341 tilted 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 tilted to the first plane, and the first plane is perpendicular to the first direction Z1. In this way, 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. The structure is simple and easy to implement. Furthermore, the sliding surface 524 is tilted as a whole toward the bottom 312 of the system end shell 31, 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.

[0283] Furthermore, in one possible implementation, the sliding surface 524 is inclined at an angle of 15° to 85° relative to the first plane. It will be appreciated that the greater the angle of inclination of the sliding surface 524 relative to the first plane, i.e., the steeper the sliding surface 524, the faster the foot pad 34 will rise and fall, and the required rotation angle of the first connecting shaft 41 will also be smaller. Persons skilled in the art can adjust this appropriately based on actual needs.

[0284] In other possible implementations, such as Figure 12c-12e As shown, the sliding surface 524 can be set as a curved surface (for example, as Figure 12c The concave arc surface shown in Figure 12d The convex arc surface shown, Figure 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.

[0285] 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 Figure 10a and Figure 10c Alternatively, the mating surface 341 may 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 does not limit this.

[0286] The specific structure of the foot pad 34 will be described below with reference to the accompanying drawings.

[0287] It should be noted that the embodiment of the present application 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 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 the 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 within 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 lift height relative to the system end housing 31. In this way, the foot pad 34 is provided with a contact portion 343 that abuts against the sliding surface 524 of the slider 52. During the displacement of the foot pad 34, the contact portion 343 can better cooperate with the displacement of the slider 52 in the second direction Y1, thereby achieving smooth sliding of the foot pad 34 in the first direction Z1.

[0288] like Figure 7bAs shown, when the foot pad 34 is 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 does not limit this.

[0289] In one possible implementation, Figure 9b As shown, the body 342 is configured as a cylindrical structure. In this case, the foot pad 34, which is generally similar to a cylindrical structure, can be easily inserted into the through hole 33 of the bottom 312 of the system end housing 31, making full use of the space, preventing external dirt from entering the accommodating cavity 32, reducing wear, and making the movement of the foot pad 34 smoother. In other possible implementations, the body 342 can also be configured as a rectangular parallelepiped, a frustum, etc., which is not limited in this embodiment of the present application.

[0290] 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 configure it under the premise of stable cooperation between the contact portion 343 and the sliding surface 524 . It is understandable that the above-mentioned cooperation surface is provided on the contact portion 343 .

[0291] 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, which are symmetrically arranged relative to the body 342 in the third direction X1. This allows the two contact portions 343 to contact the sliding surface 524, increasing the contact area between the foot pad 34 and the sliding member 52. Furthermore, the symmetrical arrangement of the contact portions 343 improves the stability of the foot pad 34 during its extension and retraction, ensuring the stability and reliability of the foot pad 34's support for the lifting system end portion 3. In other possible implementations, the two contact portions 343 may also be asymmetrically arranged, which is not a limitation in this embodiment of the present application.

[0292] Furthermore, if Figure 9b As shown, in one possible implementation, the foot pad 34 further includes a stopper 344 that protrudes outward from an outer surface of one end of the body 342 near the top 311 and is located within the accommodating cavity 32 of the system-side housing 31. When the foot pad 34 is in the extended and raised position, the stopper 344 abuts against the bottom 312 of the system-side housing 31 along the first direction Z1. Therefore, the stopper 344 on the foot pad 34 can cooperate with the bottom 312 of the system-side housing 31 to prevent the foot pad 34 from sliding out of the accommodating cavity 32 as a whole, thereby ensuring stable and convenient use of the foot pad 34.

[0293] 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.

[0294] In another example, Figure 9b As shown, the foot pad 34 includes two stoppers 344, which are symmetrically arranged relative to the body 342 in the second direction Y1. The symmetrical arrangement of the two stoppers 344 ensures more stable sliding of the foot pad 34 in the first direction Z1, reducing or preventing the foldable electronic device 1 from shaking during the extension of the foot pad 34 and ensuring a better user experience. Furthermore, the two contact portions 343 and the two stoppers 344 can be arranged in a circular pattern. This allows the foot pad 34 to maintain balance more easily, thereby improving stability and reliability during the extension process.

[0295] 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.

[0296] And, as 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, and this embodiment of the application does not limit this.

[0297] The following will describe other components in the accommodating cavity 32 that cooperate with the foot pad 34 to achieve the function in conjunction with the accompanying drawings.

[0298] See also Figure 13 , Figure 13 This is a schematic diagram of the partial structure of the area where the first shell of the foldable electronic device is located in an embodiment of the present application.

[0299] like Figure 9a-9b and Figure 13As shown, in one possible implementation, the foldable electronic device 1 may further include a first guide structure 36 corresponding to the limiting portion 344 of each foot pad 34. Each first guide structure 36 is disposed within 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 slides in contact with the first guide structure 36 within the accommodating cavity 32 in the first direction Z1, thereby guiding the movement of the foot pad 34 in the first direction Z1, reducing or preventing deviation of the foot pad 34 during movement in the first direction Z1, improving structural reliability, and making the lifting process of the foldable electronic device 1 smoother, thereby enhancing the user experience. In other possible implementations, the first guide structure 36 may not be provided.

[0300] 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 Figure 13 As shown, the first guide structure 36 includes two first guide members 361, which 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, ensuring the stability and reliability of the foot pad 34 during the extension and lifting process.

[0301] 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 limiting portions 344, the first guide structure 36 also has two. It should be noted that when there are two limiting portions 344, the first guide structure 36 can also be one, as long as it can reduce or prevent displacement of the foot pad 34 in the third direction X1. This embodiment of the present application is not limited to this.

[0302] 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 both sides of the semi-arc groove may limit the displacement of the foot pad 34 in the third direction X1.

[0303] 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.

[0304] Furthermore, the specific structure of the first guide member 361 is not limited. In a possible implementation, Figure 9a-9b and Figure 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 or may not be in contact with the top 311 of the system end housing 31. This is not limited in this embodiment of the present application. In other possible implementations, the first guide member 361 may also extend from the top 311 toward the bottom 312. In one possible implementation, as Figure 9a and Figure 9b As shown, the first guide member 361 is a square columnar structure. In this case, the contact surface between the first guide member 361 and the contact portion 343 of the foot pad 34 is more regular and the contact area is larger, making the lifting process of the foot pad 34 more stable. In other possible implementations, the first guide member 361 can also be a cylinder, which is not limited in this embodiment of the application.

[0305] In one possible implementation, Figure 9a 、 Figure 9b and Figure 13 As shown, the foldable electronic device 1 further includes a second guide structure 37 disposed within the accommodating cavity 32, and the slider 52 is slidably connected to the second guide structure 37 along the second direction Y1. With this structure, the second guide structure 37 can guide the movement of the slider 52 in the second direction Y1, thereby reducing or preventing possible deviation of the slider 52 during movement in the second direction Y1, improving the accuracy of the slider 52 sliding in the second direction Y1, facilitating the stable functioning of the transmission mechanism 5, and enhancing the user experience.

[0306] 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 Figure 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 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.

[0307] 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.

[0308] 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.

[0309] Furthermore, the specific structure of the second guide member 371 is not limited. In a possible implementation, as Figure 9a 、 Figure 9b and Figure 13 As shown, the second guide member 371 is configured as a strip structure, which has better structural strength, making the sliding member 52 more accurate in sliding 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.

[0310] The above is an explanation 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 an in-depth understanding of the present application, the above description will contain many specific details. 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 unless there is a conflict.

[0311] 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 or explained in subsequent drawings.

[0312] In the description of this application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", "top", "bottom", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting this application.

[0313] In addition, the terms “first” and “second” are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0314] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0315] In the description of this application, it should be noted that the term "perpendicular" in this application is not absolutely perpendicular. Approximate perpendicularity due to processing errors and assembly errors (for example, the angle between two structural features is 89.9°) is also within the scope of "perpendicular" in this application. The term "parallelism" in this application is not absolutely parallel. Approximate parallelism due to processing errors and assembly errors (for example, the angle between two structural features is 0.1°) is also within the scope of "parallelism" in this application. The term "axial symmetry" in this application is not absolutely axial symmetry. Approximate axial symmetry due to processing errors and assembly errors (for example, partial structure offset by a certain distance or angle relative to the axis of symmetry) is also within the scope of "axial symmetry" in this application. The term "central symmetry" in this application is not absolutely central symmetry. Approximate central symmetry due to processing errors and assembly errors (for example, partial structure offset by a certain distance or angle relative to the axis of symmetry) is also within the scope of "central symmetry" in this application. This application does not make any specific restrictions on this.

[0316] Obviously, those skilled in the art may make various modifications and variations to the present application without departing from the scope of the present application. Thus, if such modifications and variations fall within the scope of the present application claims and their equivalents, the present application is intended to include such modifications and variations.

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 disposed 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 about a first axis, so that the display end portion switches 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 spaced apart from each other along its thickness direction. 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 further includes: a foot pad, the foot pad being disposed in the accommodating cavity of the system end housing and being telescopically disposed through the through hole along a first direction so as to extend out of or retract into the system end housing; a transmission mechanism disposed within the accommodating cavity of the system-end housing and located between the first connecting shaft and the foot pad; the transmission mechanism comprising a first rotating member and a sliding member, the first rotating member being connected to the first connecting shaft and fixed relative to the first connecting shaft along its circumferential direction, and the sliding member being slidably connected within 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 of the first axis; The sliding member includes a first transmission portion and a second transmission portion, the first transmission portion being transmission-connected to the first rotating member, the second transmission portion having a sliding surface for the foot pad to slide, the sliding surface having 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 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 relative to the system end housing about the first axis, the first transmission portion drives the sliding member to slide along the second direction, and under the cooperation between the sliding surface of the second transmission portion and the foot pad, the foot pad moves relative to the system end housing 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 under the drive of the first connecting shaft, and the foot pad slides from the first end toward the second end of the sliding surface, and moves away from the top along the first direction and gradually extends 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 sliding member slides along the second direction, the foot pad slides toward the first end of the sliding surface, and moves along the first direction toward the top and gradually retracts into the system end shell.

2. The foldable electronic device according to claim 1, wherein: 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 is transmission-connected to the first rotating member and the first transmission part, so that the first transmission part is 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 portion; When the display end part switches from the closed state to the open state, the first rotating member rotates around the first axis under the drive of the first connecting shaft, 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.

3. The foldable electronic device according to claim 2, wherein: 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 engaged with the first gear and the rack.

4. The foldable electronic device according to claim 3, wherein: 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.

5. The foldable electronic device according to claim 3, wherein: 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, 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, 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.

6. The foldable electronic device according to claim 1, wherein: 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.

7. The foldable electronic device according to claim 1, 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.

8. The foldable electronic device according to claim 7, wherein: The sliding surface is inclined relative to the first plane at an angle of 15° to 85°.

9. The foldable electronic device according to claim 1, wherein: The second transmission part is configured as a transmission block having 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 end 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 the end of the transmission block in the second direction away from the first transmission part.

10. The foldable electronic device according to claim 1, wherein: The sliding member includes two second transmission parts, and the two second transmission parts 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 where the first axis is located.

11. The foldable electronic device according to claim 10, wherein: In the third direction, the two second transmission parts are symmetrically arranged relative to the center of the foot pad.

12. The foldable electronic device according to claim 1, wherein: 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 being connected between the first transmission portion and the second transmission portion, the first transmission portion being located between the bottom of the system end housing and the first rotating member, and the second transmission portion and the connecting portion being 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 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.

13. The foldable electronic device according to claim 1, 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.

14. The foldable electronic device according to claim 1, wherein: The foot pad includes a body and a contact portion, wherein 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 or retract into the system end housing, and the contact portion protrudes outward from an outer 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 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.

15. The foldable electronic device according to claim 14, wherein: The foot pad further includes a limiting portion, which protrudes outward from an outer 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.

16. The foldable electronic device according to claim 15, wherein: The foot pad includes two contact portions, and in the third direction, the two contact portions are symmetrically arranged relative to the body; The foot pad includes 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.

17. The foldable electronic device according to claim 1, wherein: The foldable electronic device further includes a first guide structure provided corresponding to the limiting portion of each foot pad, each first guide structure being provided in the accommodating cavity, and the limiting portion of the foot pad being 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 the second end of the sliding surface and the bottom of the system end shell, or, the foot pad abuts the bottom of the system end shell and is separated from the sliding surface, and is located on the side of the second end away from the first end, or, the foot pad abuts the second end of the sliding surface.

18. The foldable electronic device according to any one of claims 1 to 17, wherein: 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; The elastic force of the elastic member can make the foot pad elastically abut against the transmission mechanism along the first direction when the display end portion is in the closed state, and elastically abut against the transmission mechanism and / or the bottom of the system end housing along the first direction when the display end portion is in the 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 along the first direction away from the top and gradually extend out of the system end housing; When the transmission mechanism includes a sliding member having a sliding surface: When the display end part is in the closed state, the foot pad is pressed against the sliding surface by the elastic member; when the display end part 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.

19. The foldable electronic device according to claim 18, wherein: The upper surface of the foot pad is recessed inward 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.

20. The foldable electronic device according to claim 19, wherein: The top of the system end shell protrudes inward to form a guide platform, and the elastic member is sleeved on the guide platform.

21. The foldable electronic device according to any one of claims 1 to 17, wherein: 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 base; 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.

22. The foldable electronic device according to any one of claims 1 to 17, wherein: The first direction is parallel to the thickness direction of the system end housing; 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.

23. The foldable electronic device according to any one of claims 1 to 17, wherein: The hinge assembly further includes a display-end fixing member and a system-end fixing member, the first connecting shaft being disposed 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 being fixedly connected to the display-end housing, and the system-end fixing member being 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 via 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.

24. The foldable electronic device according to any one of claims 1 to 17, wherein: 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 includes a plurality of the transmission mechanisms and / or a plurality of the foot pads. In the direction of the first axis, the plurality of the foot pads are arranged at intervals, and the plurality of the transmission mechanisms are arranged at intervals.

25. The foldable electronic device according to any one of claims 1 to 17, wherein: The foldable electronic device is a laptop computer.

Images