Foldable electronic device

Abstract

The application discloses a foldable electronic device, which comprises a first shell, a second shell, a bearing base, a first swing arm, a second swing arm and a first support plate; the first shell is provided with a first mounting groove, and a first limiting part is arranged in the first mounting groove; the first swing arm is provided with a second limiting part; the first support plate is provided with a first abutting part and a second abutting part; the first swing arm is slidingly and rotatably connected to the first mounting groove; when the foldable electronic device is in a folded state, the first abutting part is opposite to the first limiting part, and the second limiting part is opposite to the second abutting part. When the bearing base is subjected to an external impact force, the second abutting part abuts against the second limiting part, and the first abutting part abuts against the first limiting part. Thus, the first support plate and the first shell are prevented from sliding downward, and the display screen is prevented from being extruded and disabled.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic products, and in particular to a foldable electronic device. BACKGROUND

[0002] With the development of science and technology, various electronic devices have become indispensable products in daily life and production. Among them, foldable electronic devices have gradually become a development trend due to their large display area and portability.

[0003] However, the current foldable electronic devices will squeeze the display screen when subjected to a drop impact, thereby causing the display screen to fail. SUMMARY

[0004] The foldable electronic device provided by the present application can reduce or avoid squeezing the display screen when subjected to a drop impact, thereby improving the reliability of the display screen.

[0005] The present application provides a foldable electronic device, comprising a first housing, a second housing, a bearing base, a first swing arm, a second swing arm and a first support plate. The bearing base is arranged between the first housing and the second housing. The opposite sides of the first swing arm are respectively connected to the first housing and the bearing base. The opposite sides of the second swing arm are respectively connected to the second housing and the bearing base. The foldable electronic device comprises an unfolded state and a folded state.

[0006] The first housing comprises a first middle frame and a first mounting block, the first middle frame is provided with a first mounting slot, and the first mounting block is fixed in the first mounting slot. The first mounting block is provided with a first sliding slot. The second housing comprises a second middle frame and a second mounting block, the second middle frame is provided with a second mounting slot, and the second mounting block is fixed in the second mounting slot. The second mounting block is provided with a second sliding slot.

[0007] One side of the first swing arm is slidingly and rotatably connected to the first housing, and the other side of the first swing arm is rotatably connected to the bearing base. Specifically, the first swing arm comprises a first rotating part and a first sliding part fixedly connected, the first rotating part is rotatably connected to the bearing base through a first mounting shaft, and the first sliding part is slidingly and rotatably connected to the first sliding slot. One side of the second swing arm is slidingly and rotatably connected to the second housing, and the other side of the second swing arm is rotatably connected to the bearing base. Specifically, the second swing arm comprises a second rotating part and a second sliding part fixedly connected, the second rotating part is rotatably connected to the bearing base through a second mounting shaft, and the second sliding part is slidingly and rotatably connected to the second sliding slot.

[0008] The first support plate is slidingly and rotatably connected to the first housing and the first swing arm, respectively. Specifically, the first support plate is slidingly and rotatably connected to the first mounting block and the first swing arm, respectively.

[0009] Generally, the foldable electronic device is provided with a display screen, which includes a first display part, a third display part and a second display part connected in sequence. The first display part is fixed to the first shell, the second display part is fixed to the second shell, and the third display part is opposite to the rotating mechanism, more specifically, the first display part is opposite to the bearing base and the first support plate respectively, and the third display part is not fixed to the bearing base and the first support plate.

[0010] When the foldable electronic device switches between the unfolded state and the folded state, the display screen will be unfolded or folded accordingly. The first display part and the second display part are both fixed, so they will not be bent. The third display part will be bent or unfolded according to the state change of the foldable electronic device. When the foldable electronic device is in the unfolded state, the third display part will be bent into a water drop shape. At this time, if the bearing base is subjected to an external impact force, the first shell will move a long distance towards the bearing base, thereby causing the third display part to be squeezed and fail, and finally causing the entire display screen to fail.

[0011] To solve the above problems, in the present application, a first limiting part is arranged in the first mounting slot; a second limiting part is arranged on the first swing arm; and a first abutting part and a second abutting part are arranged on the first support plate. When the foldable electronic device is in the folded state, the first abutting part is opposite to the first limiting part, and the second limiting part is opposite to the second abutting part. The first abutting part being opposite to the first limiting part means that the first abutting part is in direct contact with the first limiting part, or there is a gap between the first abutting part and the first limiting part. Similarly, the second limiting part being opposite to the second abutting part means that the second limiting part is in direct contact with the second abutting part, or there is a gap between the second limiting part and the second abutting part.

[0012] If there is a gap between the first abutting part and the first limiting part, the first shell and the second shell are folded relative to each other, and the bearing base is subjected to an external impact force, the first shell, the first support plate, the first swing arm and the bearing base are arranged in sequence from top to bottom, and the second shell, the second support plate, the second swing arm and the bearing base are arranged in sequence from top to bottom. When the bearing base is subjected to an external impact force, the first swing arm is supported by the first mounting shaft, and the first swing arm will not slide downward. However, the first shell slides and is rotationally connected to the first swing arm, and the first support plate slides and is rotationally connected to the first shell and the first swing arm, so the first shell and the first support plate both slide downward relative to the first swing arm. When the first support plate slides downward, the second abutting part abuts against the second limiting part. When the first shell slides downward, the first abutting part abuts against the first limiting part.

[0013] Of course, it can be understood that if the first shell and the second shell are relatively folded and the bearing base is not subjected to an external impact force, the second abutting portion has contacted the second limiting portion, and the first abutting portion has contacted the first limiting portion. After the bearing base is subjected to the external impact force, the first shell and the first support plate will have a downward movement trend, at this time, the second abutting portion and the second limiting portion will abut against each other to generate an abutting force, and the first limiting portion and the first abutting portion will abut against each other to generate an abutting force. Further, the first shell and the first support plate cannot move downward.

[0014] After the second abutting portion and the second limiting portion abut against each other, and the first abutting portion and the first limiting portion abut against each other, the relative positions of the first shell, the first support plate, the first swing arm and the bearing base are fixed. That is, the first shell and the first support plate both stop sliding downward. Therefore, the third display portion cannot be squeezed, and thus the third display portion can be prevented from being damaged, and finally the entire display screen can be prevented from being damaged.

[0015] It can be understood that when the bearing base is subjected to an external impact force, the second abutting portion first contacts the second limiting portion, at this time, the bearing base, the first swing arm and the first support plate are relatively fixed. Then the first limiting portion contacts the first abutting portion. Because the bearing base, the first swing arm and the first support plate have formed an integrated state in advance, when the first shell moves downward, the impact force can be transmitted from the first support plate to the bearing base through the first swing arm in an instant, and thus the first shell stops moving. This prevents the impact force of the first shell from being unable to be transmitted to the first swing arm and the bearing base, and thus the impact force of the first shell is applied to the first support plate, which can prevent the first support plate from being damaged.

[0016] In some embodiments, the first limiting portion includes an inner wall surface of the first mounting slot, and the first abutting portion includes a surface of the first support plate. That is, the first mounting slot itself is used as the first limiting portion, and the first support plate itself is used as the first abutting portion. This can not only prevent the display screen from being squeezed, but also make the structure of the foldable electronic device simple.

[0017] In some embodiments, the first mounting slot is internally provided with a first sliding slot, the first swing arm is slidingly and rotatably connected to the first sliding slot, and the first sliding slot is internally provided with the first limiting portion. The first swing arm is located between the first support plate and a slot bottom surface of the first sliding slot. The first support plate is provided with a first protrusion, the first protrusion penetrates the first swing arm along a thickness direction of the first swing arm and extends into the first sliding slot when the foldable electronic device is in a folded state, and the first protrusion is provided with the first abutting portion. This can increase the contact area of the first shell and the first support plate, and make the force applied to the first shell and the first support plate more balanced, so as to reduce the damage of the first shell and the first support plate when the foldable electronic device falls. In addition, the first limiting portion and the first abutting portion cooperate in the first sliding slot, so as to avoid the display screen from being squeezed. This can save space and will not affect the relative movement of the first swing arm and the first shell.

[0018] In some embodiments, the first sliding groove is provided with a first limiting groove, the first limiting portion comprises an inner wall surface of the first limiting groove, and the first abutting portion comprises a surface of the first protrusion. That is, the first limiting portion and the first abutting portion are both surface structures, which are simple in structure and easy to process.

[0019] In some embodiments, the first shell comprises a first middle frame and a first mounting block, the first middle frame is provided with a first mounting groove, the first mounting block is fixed in the first mounting groove, the first mounting block is provided with a first sliding groove, and the first limiting groove is arranged on a groove bottom surface of the first sliding groove.

[0020] In some embodiments, the first swing arm is provided with a first abutting groove, the first abutting groove is provided with a second limiting portion, the first support plate is provided with a second protrusion, at least part of the second protrusion extends into the first abutting groove when the foldable electronic device is in the folded state, and the second protrusion is provided with a second abutting portion. The second limiting portion and the second abutting portion are matched in the interior of the first abutting groove to avoid the display screen being squeezed, which is compact in structure, saves space, and does not affect the relative movement of the first swing arm and the first support plate.

[0021] In some embodiments, the second limiting portion comprises an inner wall surface of the first abutting groove, and the second abutting portion comprises a surface of the second protrusion. That is, the second limiting portion and the second abutting portion are both surface structures, which are simple in structure and easy to process.

[0022] In some embodiments, the first limiting portion is parallel to the first abutting portion. The first limiting portion and the first abutting portion are both surface structures. By arranging the first limiting portion and the first abutting portion to be parallel to each other, the first shell and the second shell are relatively folded, and when the bearing base is subjected to an external impact force, the first limiting portion and the first abutting portion are in surface contact. The first shell and the first support plate have a relatively large contact area, which can increase the force balance of the first shell and the first support plate, and the pressure intensity of the first shell and the first support plate is relatively small, so that the first shell and the first support plate are not easily damaged. In addition, the contact stability of the first shell and the first support plate is relatively strong, which can also prevent the first shell and the first support plate from relatively shaking, thereby increasing the structural stability of the foldable electronic device.

[0023] In some embodiments, the first limiting portion is parallel to the reference surface. The first abutting portion is also parallel to the reference surface. When the foldable electronic device is in the folded state and the bearing base is subjected to an impact force, if the downward sliding direction of the first shell is parallel to the thickness direction of the bearing base, the impact force generated by the first limiting portion on the first abutting portion is vertically downward, and the supporting force applied by the first abutting portion to the first limiting portion is vertically upward, so that the impact force and the supporting force can be offset. In this way, the downward sliding trend of the first shell can be quickly stopped, the risk of the third display screen being squeezed is reduced, and the reliability of the display screen is improved.

[0024] In some embodiments, when the first shell and the second shell are relatively folded, the first limiting portion faces the second shell. A reference plane is parallel to a plane in which the thickness direction of the first shell and the length direction of the first shell are located. That is, the first limiting portion is inclined downward relative to the reference plane. The first abutting portion is also inclined downward relative to the reference plane. In the first aspect, the contact area of the first limiting portion and the first abutting portion can be increased. The stability of the contact between the first shell and the first support plate is further increased, the force balance of the first shell and the first support plate is further improved, and the risk of damage to the first shell and the first support plate is further reduced.

[0025] In the second aspect, when the foldable electronic device is in the folded state and the bearing base is subjected to an impact force, if the direction in which the first shell slides downward is inclined relative to the thickness direction of the bearing base. When the first limiting portion and the first abutting portion abut, the impact force generated by the first limiting portion on the first abutting portion is inclined downward, and the support force applied by the first abutting portion to the first limiting portion is inclined upward, and the support force can offset the impact force. Thus, the tendency of the first shell to slide downward can be quickly stopped, the risk of the third display screen being pressed is reduced, and the reliability of the display screen is improved.

[0026] In some embodiments, the included angle b between the first limiting portion and the reference plane satisfies the following condition: 0 degrees < b ≤ 45 degrees. In the first aspect, the contact area of the first limiting portion and the first abutting portion can be increased, and the stability of the contact between the first shell and the first support plate is further increased. In the second aspect, sufficient abutting force is provided between the first shell and the first support plate, which can prevent the first shell from sliding relative to the first support plate.

[0027] In some embodiments, the second limiting portion is parallel to the second abutting portion. By setting the second limiting portion and the second abutting portion as a surface structure, and the second limiting portion is parallel to the second abutting portion. When the first shell and the second shell are relatively folded, and the bearing base is subjected to an external impact force, the second limiting portion and the second abutting portion are in surface contact, which can increase the force balance of the first support plate and the first swing arm, and the pressure intensity of the first support plate and the first swing arm is smaller, and the first support plate and the first swing arm are not easily damaged. In addition, the stability of the contact between the first support plate and the first swing arm is stronger, which can prevent the first support plate and the first swing arm from relatively shaking, and the structural stability of the foldable electronic device is increased.

[0028] In some embodiments, the second limiting portion is parallel to a reference surface, the reference surface is parallel to a plane in which the thickness direction of the first housing and the length direction of the first housing lie, and the second abutting portion is also parallel to the reference surface. When the foldable electronic device is in the folded state, the impact force from the outside on the carrier base is parallel to the thickness direction of the carrier base, and the thickness direction of the first housing is perpendicular to the thickness direction of the carrier base. When the foldable electronic device is in the folded state and the carrier base is subjected to an impact force, if the direction in which the first support plate slides downward is parallel to the thickness direction of the carrier base. When the second limiting portion and the second abutting portion abut, the impact force exerted by the second abutting portion on the second limiting portion is vertically downward, and the support force generated by the second limiting portion on the second abutting portion is vertically upward. The support force and the impact force can be offset. In this way, the downward sliding trend of the first support plate can be quickly stopped, the risk of the third display being squeezed can be reduced, and the reliability of the display can be improved.

[0029] In some embodiments, when the first housing and the second housing are relatively folded, the second limiting portion is inclined relative to a reference surface, and the second limiting portion faces the second housing. The reference surface is parallel to a plane in which the thickness direction of the first housing and the length direction of the first housing lie. That is, the second limiting portion and the second abutting portion are both inclined downward. First, the contact area of the second limiting portion and the second abutting portion can be increased, so that the pressure on the first support plate and the first swing arm is reduced, and thus the force per unit area on the first support plate and the first swing arm is reduced, further reducing the risk of damage to the first support plate and the first swing arm. Second, when the foldable electronic device is in the folded state and the carrier base is subjected to an impact force, if the direction in which the first support plate slides downward is inclined relative to the thickness direction of the carrier base. When the second limiting portion and the second abutting portion abut, the impact force exerted by the second abutting portion on the second limiting portion is inclined downward, and the support force generated by the second limiting portion on the second abutting portion is inclined upward, and the support force can offset the impact force. In this way, the downward sliding trend of the first support plate can be quickly stopped, the risk of the third display being squeezed can be reduced, and the reliability of the display can be improved.

[0030] In some embodiments, the included angle a between the second limiting portion and the reference surface satisfies the following condition: 0 degrees < a ≤ 45 degrees. First, the contact area of the second limiting portion and the second abutting portion can be increased, thereby increasing the stability of the contact between the first support plate and the first swing arm. Second, sufficient abutting force is provided between the first support plate and the first swing arm, which can prevent the first support plate from sliding relative to the first swing arm.

[0031] In some embodiments, the foldable electronic device further comprises a second support plate, the second support plate being slidingly and rotatably connected to the second mounting block of the second housing and the second swing arm respectively. A part of the third display portion is opposite to the second support plate, and the third display portion is not fixedly connected to the second support plate. When the foldable electronic device is in the folded state and the bearing base is subjected to an external impact force, the second housing also moves a large distance in the direction close to the bearing base, thereby causing the third display portion to be pressed and finally causing the entire display screen to fail. Therefore, the second housing, the second support plate and the second swing arm can be provided with abutting structures, which can be referred to the abutting structures between the first housing, the first support plate and the first swing arm.

[0032] Specifically, the second mounting slot is provided with a third limiting portion. The second swing arm is provided with a fourth limiting portion, and the fourth limiting portion extends into the second mounting slot. The second support plate is provided with a third abutting portion and a fourth abutting portion. When the first housing and the second housing are folded relative to each other, the third abutting portion is opposite to the third limiting portion, and the opposite here includes the case of having a small gap and directly contacting. The fourth limiting portion is opposite to the fourth abutting portion, and the opposite here includes the case of having a small gap and directly contacting.

[0033] When the first housing and the second housing are folded relative to each other and the bearing base is subjected to an external impact force, the second housing and the second support plate both slide downward or have a tendency to slide downward. At this time, the fourth abutting portion abuts against the fourth limiting portion, and the third abutting portion abuts against the third limiting portion, and the relative positions of the second housing, the second support plate, the second swing arm and the bearing base are fixed. That is, the second housing and the second support plate both stop sliding downward. Therefore, the third display portion will not be pressed, thereby preventing the third display portion from failing and finally preventing the entire display screen from failing.

[0034] In some embodiments, the third limiting portion includes a side surface of the second mounting slot, and the third abutting portion includes a side surface of the second support plate. That is, the structure of the second mounting slot itself is used as the third limiting portion, and the structure of the second support plate itself is used as the third abutting portion. This can not only prevent the display screen from being pressed, but also make the structure of the foldable electronic device simple.

[0035] In some embodiments, the second mounting slot is provided with a second sliding slot, and the second swing arm is slidingly and rotatably connected to the second sliding slot; the second sliding slot is provided with a third limiting portion. The second support plate is located between the second swing arm and a bottom surface of the second sliding slot; the second support plate is provided with a third protrusion, the third protrusion penetrates through the second swing arm and extends into the second sliding slot; and the third protrusion is provided with a third abutting portion. This can increase the contact area of the second housing and the second support plate, so that the force on the second housing and the second support plate is more balanced, thereby reducing the damage to the second housing and the second support plate when the foldable electronic device falls. In addition, the third limiting portion and the third abutting portion cooperate in the second sliding slot to avoid the display screen being pressed. This can save space and will not affect the relative movement of the second swing arm and the second housing.

[0036] In some embodiments, the second sliding groove is provided with a second limiting groove, the third limiting part includes a side surface of the second limiting groove, and the third abutting part includes an end surface of the third protrusion. That is, the third limiting part and the third abutting part are both surface structures, which are simple in structure and convenient to process.

[0037] In some embodiments, the second housing includes a second middle frame and a second mounting block, the second middle frame is provided with a second mounting groove, and the second mounting block is fixed in the second mounting groove and provided with a second sliding groove, and the second limiting groove is arranged on a groove bottom surface of the second sliding groove.

[0038] In some embodiments, the second swing arm is provided with a second abutting groove, the second abutting groove is provided with a fourth limiting part, the second support plate is provided with a fourth protrusion, at least part of the fourth protrusion extends into the second abutting groove, and the fourth protrusion is provided with a fourth abutting part. The fourth limiting part and the fourth abutting part are matched in the interior of the second abutting groove to avoid the display screen being pressed, the structure is compact, space is saved, and the relative movement of the second swing arm and the second support plate is not affected.

[0039] In some embodiments, the fourth limiting part includes a groove bottom surface of the second abutting groove, and the fourth abutting part includes an end surface of the fourth protrusion. That is, the fourth limiting part and the fourth abutting part are both surface structures, which are simple in structure and convenient to process.

[0040] In some embodiments, the third limiting part is parallel to the third abutting part. By arranging the third limiting part and the third abutting part to be parallel to each other, when the first housing and the second housing are relatively folded and the bearing base is subjected to an external impact force, the third limiting part and the third abutting part are in surface contact. The second housing and the second support plate have a relatively large contact area, which can increase the force balance of the second housing and the second support plate, and the pressure intensity of the second housing and the second support plate is relatively small, so that the second housing and the second support plate are not easily damaged. In addition, the contact stability of the second housing and the second support plate is relatively high, which can also prevent the second housing and the second support plate from relatively shaking, thereby increasing the structural stability of the foldable electronic device.

[0041] In some embodiments, the third limiting part is parallel to the reference surface. The third abutting part is also parallel to the reference surface. When the foldable electronic device is in a folded state and the bearing base is subjected to an impact force, if the downward sliding direction of the second housing is parallel to the thickness direction of the bearing base, the impact force generated by the third limiting part on the third abutting part is vertically downward, and the supporting force applied by the third abutting part to the third limiting part is vertically upward, so that the impact force and the supporting force can be offset. In this way, the downward sliding trend of the second housing can be quickly stopped, the risk of the third display screen being pressed is reduced, and the reliability of the display screen is improved.

[0042] In some embodiments, when the first shell and the second shell are relatively folded, the third limiting portion is inclined downward relative to the reference surface. The third abutting portion is also inclined downward relative to the reference surface. In the first aspect, the contact area of the third limiting portion and the third abutting portion can be increased. The stability of the contact between the second shell and the second support plate is further increased, and the force balance of the second shell and the second support plate is further improved, and the risk of damage to the second shell and the second support plate is further reduced.

[0043] In the second aspect, the foldable electronic device is in a folded state, and the bearing base is subjected to an impact force. If the direction in which the second shell slides downward is inclined relative to the thickness direction of the bearing base, when the third limiting portion and the third abutting portion abut, the impact force generated by the third limiting portion on the third abutting portion is inclined downward, and the support force applied by the third abutting portion to the third limiting portion is inclined upward, and the support force can counteract the impact force. Thus, the downward sliding trend of the second shell can be quickly stopped, the risk of the third display being squeezed is reduced, and the reliability of the display is improved.

[0044] In some embodiments, the included angle between the third limiting portion and the thickness direction of the second shell is between 0 degrees and 45 degrees. In the first aspect, the contact area of the third limiting portion and the third abutting portion can be increased, and the stability of the contact between the second shell and the second support plate is further increased. In the second aspect, there is sufficient abutting force between the second shell and the second support plate, which can prevent the second shell from sliding relative to the second support plate.

[0045] In some embodiments, the fourth limiting portion is parallel to the fourth abutting portion. By arranging the fourth limiting portion and the fourth abutting portion as surface structures and arranging the fourth limiting portion to be parallel to the fourth abutting portion, when the first shell and the second shell are relatively folded and the bearing base is subjected to an external impact force, the fourth limiting portion and the fourth abutting portion are in surface contact, the force balance of the second support plate and the second swing arm can be increased, the pressure intensity on the second support plate and the second swing arm is smaller, and the second support plate and the second swing arm are less likely to be damaged. In addition, the stability of the contact between the second support plate and the second swing arm is strong, and the relative shaking of the second support plate and the second swing arm can be prevented, and the structural stability of the foldable electronic device is increased.

[0046] In some embodiments, the fourth limiting portion is parallel to the reference surface, and the fourth abutting portion is also parallel to the reference surface. When the foldable electronic device is in a folded state and the bearing base is subjected to an impact force, the fourth limiting portion and the fourth abutting portion abut, the impact force applied by the fourth abutting portion to the fourth limiting portion is vertically downward, and the support force generated by the fourth limiting portion on the fourth abutting portion is vertically upward. The support force and the impact force can counteract each other. Thus, the downward sliding trend of the second support plate can be quickly stopped, the risk of the third display being squeezed is reduced, and the reliability of the display is improved.

[0047] In some embodiments, when the first shell and the second shell are relatively folded, the fourth limiting part is inclined downward relative to the reference surface. In a first aspect, the contact area of the fourth limiting part and the fourth abutting part can be increased, so that the pressure intensity on the second support plate and the second swing arm is reduced, and thus the force per unit area on the second support plate and the second swing arm is reduced, further reducing the risk of damage to the second support plate and the second swing arm. In a second aspect, when the foldable electronic device is in a folded state and the bearing base is subjected to an impact force, if the second support plate slides downward at an angle relative to the thickness direction of the bearing base, when the fourth limiting part and the fourth abutting part abut, the impact force exerted by the fourth abutting part on the fourth limiting part is inclined downward, and the support force generated by the fourth limiting part on the fourth abutting part is inclined upward, which can offset the impact force. Thus, the downward sliding trend of the second support plate can be quickly stopped, the risk of the third display being pressed is reduced, and the reliability of the display is improved.

[0048] In some embodiments, the angle between the fourth limiting part and the thickness direction of the second shell is between 0 degrees and 45 degrees. In a first aspect, the contact area of the fourth limiting part and the fourth abutting part can be increased, and thus the stability of the contact between the second support plate and the second swing arm is increased. In a second aspect, sufficient abutting force is provided between the second support plate and the second swing arm, which can prevent the second support plate from sliding relative to the second swing arm.

[0049] In some embodiments, the first swing arm is further provided with a first concave-convex wheel, and the first concave-convex wheel is provided with a first concave-convex part. The foldable electronic device further comprises a first mounting shaft, a first limiting part, a first main elastic part, and a first sliding part. The first sliding part is provided with a first matching part.

[0050] The first limiting part is fixed to the first mounting shaft, and the first main elastic part and the first sliding part are both slidingly connected to the first mounting shaft, and the two ends of the first main elastic part abut against the first limiting part and the first sliding part, respectively. In the axial direction of the first mounting shaft, the first limiting part, the first main elastic part, the first sliding part, the first concave-convex wheel, and the first rotating part are arranged in sequence. The first concave-convex part and the first matching part are matched. The protrusion of the first concave-convex part abuts against the protrusion of the first matching part, and the first main elastic part is in a compressed state. The protrusion of the first concave-convex wheel abuts against the recess of the first matching part, and the first main elastic part is in a pre-compressed state. A damping force is provided for the first shell.

[0051] In some embodiments, the first swing arm further includes a second concave cam, which has a second concave-convex portion. The foldable electronic device also includes a first pusher and a first drive member, which are fixedly connected. The first pusher has a second mating portion. The second concave cam is rotatably connected to a first mounting shaft, and both the first pusher and the first drive member are slidably connected to the first mounting shaft. Along the axial direction of the first mounting shaft, the first drive member is located between a first main elastic member and a first limiting member, the second concave cam is located at the end of the first rotating portion away from the first concave cam, and the first pusher is located on the side of the second concave cam away from the first rotating portion. The second concave-convex portion and the second mating portion engage. When the first main elastic member is in a compressed state, the protrusion of the second concave-convex portion and the protrusion of the second mating portion abut against each other. When the first main elastic member is in a pre-compressed state, the protrusion of the second concave-convex portion and the concave portion of the second mating portion abut against each other.

[0052] In some embodiments, the second swing arm further includes a third concave cam and a fourth concave cam, the third concave cam having a third concave-convex portion and the fourth concave cam having a fourth concave-convex portion. The foldable electronic device also includes a second mounting shaft, a second limiting member, a second main elastic member, a second sliding member, a second pushing member, and a second driving member. The second sliding member has a third mating portion, and the second pushing member has a fourth mating portion. The second pushing member and the second driving member are fixedly connected. The second rotating part, the third concave cam, the fourth concave cam, the second mounting shaft, the second limiting member, the second main elastic member, the second sliding member, the second pushing member, and the second driving member cooperate to provide damping force for the second housing. The process by which the second housing obtains damping force can be referred to the first housing.

[0053] In some embodiments, the outer peripheral surface of the first rotating part is provided with a first driving tooth, and the outer peripheral surface of the second rotating part is provided with a second driving tooth. The first driving tooth and the second driving tooth are connected in a driving manner. The first driving tooth and the second driving tooth can mesh directly, or mesh indirectly through a synchronous gear, so that the first housing and the second housing move synchronously. Attached Figure Description

[0054] Figure 1 This is a schematic diagram of the foldable electronic device provided in this application in a folded state.

[0055] Figure 2 This is a schematic diagram of the unfolded state of the foldable electronic device provided in the embodiments of this application.

[0056] Figure 3 This is a schematic diagram of the main body of the foldable electronic device provided in the embodiments of this application.

[0057] Figure 4 yes Figure 3 The diagram shows the structure of the first and second shells of the main body.

[0058] Figure 5is Figure 3 Part of the exploded view of the rotating mechanism shown in FIG. 12B.

[0059] Figure 6 is Figure 5 Part of the exploded view of the rotating mechanism shown in FIG. 12B.

[0060] Figure 7 is Figure 5 Part of the exploded view of the rotating mechanism shown in FIG. 12B.

[0061] Figure 8 is Figure 5 Part of the exploded view of the rotating mechanism shown in FIG. 12B.

[0062] Figure 9 is Figure 5 Part of the exploded view of the rotating mechanism shown in FIG. 12B.

[0063] Figure 10 is Figure 3 Part of the exploded view of the rotating mechanism shown in FIG. 12B.

[0064] Figure 11 is Figure 3 Part of the exploded view of the rotating mechanism shown in FIG. 12B.

[0065] Figure 12 is Figure 3 Part of the exploded view of the rotating mechanism shown in FIG. 12B.

[0066] Figure 13 is Figure 3 Part of the exploded view of the rotating mechanism shown in FIG. 12B.

[0067] Figure 14 is Figure 3 Part of the exploded view of the rotating mechanism shown in FIG. 12B.

[0068] Figure 15 is Part of the exploded view of the rotating mechanism shown in FIG. 12B.

[0069] Figure 16 is

[0070] Part of the exploded view of the rotating mechanism shown in FIG. 12B. Figure 17 Figure 1 is

[0071] Part of the exploded view of the rotating mechanism shown in FIG. 12B. Figure 18 Figure 17A structural schematic diagram of a foldable electronic device shown in FIG.

[0072] Figure 19 A state change diagram of a foldable electronic device in the related art when the foldable electronic device is in a folded state and subjected to an external impact force.

[0073] Figure 20 A simplified structural schematic diagram of a first housing, a first support plate, and a first swing arm of a foldable electronic device when the foldable electronic device is in a folded state.

[0074] Figure 21 A simplified structural schematic diagram of a second housing, a second support plate, and a second swing arm of a foldable electronic device when the foldable electronic device is in a folded state.

[0075] Figure 22 A simplified structural schematic diagram of a first support plate and a first swing arm of a foldable electronic device when the foldable electronic device is in a folded state and subjected to an external impact force.

[0076] Figure 23 Another simplified structural schematic diagram of a first support plate and a first swing arm of a foldable electronic device when the foldable electronic device is in a folded state and subjected to an external impact force.

[0077] Figure 24 A simplified structural schematic diagram of a first support plate and a first housing of a foldable electronic device when the foldable electronic device is in a folded state and subjected to an external impact force.

[0078] Figure 25 Another simplified structural schematic diagram of a first support plate and a first housing of a foldable electronic device when the foldable electronic device is in a folded state and subjected to an external impact force.

[0079] Figure 26 A cross-sectional structural schematic diagram of a foldable electronic device when the foldable electronic device is in a folded state according to another embodiment of the present application.

[0080] Figure 27 A partial structural schematic diagram of a rotating mechanism shown in FIG. Figure 5

[0081] Legend of Reference Signs

[0082] ​1000-foldable electronic device, 1200-main body, 100-rotation mechanism, 10-first swing arm, 11-first rotation part, 111-first concave-convex wheel, 112-second concave-convex wheel, 113-first drive tooth, 12-first sliding part, 121-first sliding surface, 122-second sliding surface, 123-first sliding end surface, 13-first abutting groove, 131-first groove bottom surface, 14-first guide sliding block, 10a-second swing arm, 11a-second rotation part, 111a-third concave-convex wheel, 112a-fourth concave-convex wheel, 113a-second drive tooth, 12a-second sliding part, 13a-second abutting groove, 131a-second groove bottom surface, 14a-second guide sliding block, 20-first support plate, 21-third support surface, 22-first setting surface, 23-first side surface, 24-second side surface, 201-first convex part, 25-first protrusion, 251-first guide sliding groove, 252-first end surface, 26-first avoiding groove, 27-first connecting block, 271-first sliding hole, 28-first arc-shaped block, 281-first arc-shaped groove, 29-second protrusion, 291-second end surface, 20a-second support plate, 21a-fourth support surface, 22a-second setting surface, 23a-third side surface, 24a-fourth side surface, 201a-second convex part, 25a-third protrusion, 251a-second guide sliding groove, 252a-third end surface, 26a-second avoiding groove, 27a-second connecting block, 271a-second sliding hole, 28a-second arc-shaped block, 281a-second arc-shaped groove, 29a-fourth protrusion, 291a-fourth end surface, 30-third support plate, 31-fifth support surface, 32-third setting surface, 40-bearing base, 41-first mounting shaft, 42-second mounting shaft, 50-first main swing arm, 51-first sliding shaft, 50a-second main swing arm, 51a-second sliding shaft, 60-first limiting part, 61-second limiting part, 62-first main elastic part, 63-second main elastic part, 64-first sliding part, 65-second sliding part, 66-first pushing part, 67-second pushing part, 68-first driving part, 69-second driving part, 70-first connecting part, 71-second connecting part, 72-third connecting part, 73-first synchronous gear, 74-second synchronous gear, 75-first matching part, 76-second matching part, 77-third matching part, 78-fourth matching part, 79-aiding elastic part, 200-first shell, 210-first middle frame, 211-first bearing part, 212-first bearing plate, 213-second bearing plate, 214-first mounting groove, 215-first groove side surface, 220-first middle plate, 221-first support surface, 230-first mounting block, 231-first sliding groove, 232-first limiting groove, 233-first rotation groove, 234-first sliding block, 240-second groove side surface, 300-second shell, 310-second middle frame, 311-second bearing part, 312-third bearing plate,313 - fourth bearing plate, 314 - second mounting groove, 315 - third groove side, 320 - second middle plate, 321 - second support surface, 330 - second mounting block, 331 - second sliding groove, 332 - second limiting groove, 333 - second rotating groove, 334 - second sliding block, 340 - fourth groove side, 400 - first limiting portion, 500 - second limiting portion, 400a - third limiting portion, 500a - fourth limiting portion, 600 - first abutting portion, 700 - second abutting portion, 600a - third abutting portion, 700a - fourth abutting portion, 1300 - display screen, 1310 - first display portion, 1320 - second display portion, 1330 - third display portion, M - reference surface. DETAILED DESCRIPTION

[0083] The embodiments of the present application will be described below with reference to the accompanying drawings.

[0084] Please refer to Figure 1 and Figure 2 , Figure 1 is a structural schematic diagram of a foldable electronic device 1000 in a folded state provided by the embodiments of the present application. Figure 2 is a structural schematic diagram of a foldable electronic device 1000 in an unfolded state provided by the embodiments of the present application.

[0085] Figure 1 The folding angle of the foldable electronic device 1000 shown in Figure 2 The unfolding angle of the foldable electronic device 1000 shown in

[0086] It should be noted that the angles exemplarily illustrated in the embodiments of the present application can have a little deviation. For example, Figure 1 The deviation of the folding angle of the foldable electronic device 1000 shown in Figure 2 The deviation of the unfolding angle of the foldable electronic device 1000 shown in

[0087] For ease of description, a width direction of the foldable electronic device 1000 is defined as an X-axis direction, a length direction of the foldable electronic device 1000 is defined as a Y-axis direction, and a thickness direction of the foldable electronic device 1000 is defined as a Z-axis direction. The X-axis direction, the Y-axis direction, and the Z-axis direction are perpendicular to each other in pairs.

[0088] The foldable electronic device 1000 includes a main body 1200 and a display screen 1300, and the display screen 1300 is mounted to the main body 1200. The display screen 1300 is a flexible screen, and the display screen 1300 includes a display surface and a mounting surface, which are arranged opposite to each other. The display surface is used to display text, images, videos, and the like. The display screen 1300 includes a first display part 1310, a second display part 1320, and a third display part 1330. The third display part 1330 is located between the first display part 1310 and the second display part 1320.

[0089] Please refer to Figure 3 , Figure 3 is a structural schematic diagram of the main body 1200 of the foldable electronic device 1000 provided by the embodiments of the present application. The main body 1200 includes a first shell 200, a second shell 300, and a rotating mechanism 100. The rotating mechanism 100 is mounted to the first shell 200 and the second shell 300 to realize the rotating connection between the first shell 200 and the second shell 300. The first shell 200 and the second shell 300 can be relatively rotated through the rotating mechanism 100, so that the main body 1200 is switched between a folded state and an unfolded state.

[0090] The display screen 1300 is mounted to the main body 1200, and the mounting surface is fixedly connected with the main body 1200. Specifically, the first display part 1310 is fixedly mounted to the first shell 200, and the second display part 1320 is fixedly mounted to the second shell 300. The rotating mechanism 100 is arranged opposite to the third display part 1330 to realize the bending of the display screen 1300. The third display part 1330 is not fixed with the rotating mechanism 100. The side of the first shell 200 and the second shell 300 away from the display screen 1300 is the outer side of the electronic device, and the side carrying the display screen 1300 is the inner side.

[0091] In some embodiments, referring to Figure 4 , Figure 4 is Figure 3FIG. 1 shows a structure diagram of the first housing 200 and the second housing 300 of the main body 1200. The first housing 200 is provided with a first mounting groove 214. Specifically, the first housing 200 includes a first middle frame 210, a first back plate (not shown in the figure), a first middle plate 220, and a first mounting block 230. The first back plate and the first middle plate 220 are respectively fixed to two sides of the first middle frame 210 along the Z-axis direction. The first middle frame 210, the first back plate, and the first middle plate 220 enclose a first accommodating cavity (not shown in the figure) for mounting devices such as a circuit board and a battery. A surface of the first middle plate 220 away from the first accommodating cavity is a first support surface 221 for supporting the first display part 1310. The first display part 1310 is laminated and fixed to the first support surface 221.

[0092] The first middle frame 210 is provided with a first bearing 211 on a side facing the second housing 300. The first bearing 211 includes a first bearing plate 212 and a second bearing plate 213, and the first bearing plate 212 and the second bearing plate 213 are connected in an L shape. The first bearing plate 212 and the second bearing plate 213 enclose the first mounting groove 214. The first mounting groove 214 includes a first groove side surface 215, and the first groove side surface 215 is parallel to the Z-axis direction. The first groove side surface 215 is a part of an inner wall surface of the first mounting groove 214, that is, the first limiting part 400 includes the inner wall surface of the first mounting groove 214.

[0093] The first mounting block 230 can be a wedge-shaped block, and the first mounting block 230 is fixed in the first mounting groove 214. The first mounting block 230 is provided with a first sliding groove 231, a first rotating groove 233, and a first sliding block 234, and the first sliding groove 231, the first rotating groove 233, and the first sliding block 234 are all used to connect with the rotating mechanism 100. The first sliding groove 231 is provided with a first limiting groove 232, and the first limiting groove 232 includes a second groove side surface 240. The second groove side surface 240 is parallel to the Z-axis direction, and the second groove side surface 240 is a part of an inner wall surface of the first limiting groove 232, that is, the first limiting part 400 includes the inner wall surface of the first limiting groove 232.

[0094] Continuing to refer to Figure 4The second housing 300 has the same structure as the first housing 200, and the second housing 300 is provided with a second mounting groove 314. Specifically, the second housing 300 includes a second middle frame 310, a second back plate (not shown in the figure), a second middle plate 320, and a second mounting block 330. The second back plate and the second middle plate 320 are respectively fixed to two sides of the second middle frame 310 along the Z-axis direction. The second middle frame 310, the second back plate, and the second middle plate 320 enclose a second accommodating cavity (not shown in the figure), and the second accommodating cavity is used to mount devices such as a circuit board and a battery. The surface of the second middle plate 320 away from the second accommodating cavity is a second support surface 321, and the second support surface 321 is used to support the second display part 1320. The second display part 1320 is stacked and fixed to the second support surface 321.

[0095] The second middle frame 310 is provided with a second bearing part 311 on the side facing the first housing 200. The second bearing part 311 includes a third bearing plate 312 and a fourth bearing plate 313, and the third bearing plate 312 and the fourth bearing plate 313 are connected in an L shape and enclose the second mounting groove 314. The second mounting groove 314 includes a third groove side surface 315 parallel to the Z-axis direction, and the third groove side surface 315 is a third limiting part 400a. The second mounting block 330 can be a wedge-shaped block, and the second mounting block 330 is fixed in the second mounting groove 314. The second mounting block 330 is provided with a second sliding groove 331, a second rotating groove 333, and a second sliding block 334, and the second sliding groove 331, the second rotating groove 333, and the second sliding block 334 are used to connect the rotating mechanism 100. The second sliding groove 331 is provided with a second limiting groove 332, and the second limiting groove 332 includes a fourth groove side surface 340 (not shown in the figure), which is parallel to the Z-axis direction, and the fourth groove side surface 340 is a third limiting part 400a.

[0096] In some embodiments, with reference to Figure 5 , Figure 5 is Figure 3 A part of a schematic diagram of a split structure of the rotating mechanism 100 shown in FIG. 1 is shown in FIG. 2. The rotating mechanism 100 includes a first swing arm 10, a second swing arm 10a, a first support plate 20, a second support plate 20a, a third support plate 30, a bearing base 40, a first main swing arm 50, and a second main swing arm 50a. The first main swing arm 50 is provided with a first sliding shaft 51, and the second main swing arm 50a is provided with a second sliding shaft 51a.

[0097] In this embodiment, with reference to Figure 6 , Figure 6 is Figure 5Figure 2 is a structural schematic view of the first swing arm 10 of the rotating mechanism 100 shown in Figure 1. The first swing arm 10 comprises a first rotating part 11 and a first sliding part 12 fixedly connected. The first sliding part 12 comprises a first sliding surface 121, a second sliding surface 122 and a first sliding end surface 123. The first sliding surface 121 and the second sliding surface 122 are oppositely arranged along the thickness direction of the first swing arm 10. The first sliding end surface 123 is connected between the first sliding surface 121 and the second sliding surface 122, and the first sliding end surface 123 is located on the side of the first sliding part 12 away from the first rotating part 11.

[0098] The first sliding part 12 is provided with a first abutting groove 13. The first abutting groove 13 penetrates the first sliding surface 121, the second sliding surface 122 and the first sliding end surface 123. The first abutting groove 13 comprises a first groove bottom surface 131 parallel to the first sliding end surface 123. The first sliding surface 121 is convexly provided with a first sliding guide block 14 for connecting with the first support plate 20. The first groove bottom surface 131 is a second limiting part 500. The first groove bottom surface 131 is a part of the inner wall surface of the first abutting groove 13, that is, the second limiting part 500 comprises the inner wall surface of the first abutting groove 13.

[0099] Reference Figure 7 , Figure 7 is Figure 5 Figure 3 is a structural schematic view of the second swing arm 10a of the rotating mechanism 100 shown in Figure 1. The second swing arm 10a has the same structure as the first swing arm 10, and comprises a second rotating part 11a and a second sliding part 12a. The second sliding part 12a comprises a third sliding surface, a fourth sliding surface and a second sliding end surface. The second sliding part 12a is provided with a second abutting groove, and the second abutting groove 13a comprises a second groove bottom surface 131a parallel to the second sliding end surface. The second groove bottom surface 131a is a fourth limiting part 500a. The third sliding surface is convexly provided with a second sliding guide block 14a for connecting with the second support plate 20a.

[0100] Reference Figure 5 and Figure 8 , Figure 8 is Figure 5FIG. 6 is a partial structural schematic view of another perspective of the first support plate 20 of the rotating mechanism 100 shown in FIG. 1. The first support plate 20 includes a third support surface 21, a first setting surface 22, a first side surface 23, and a second side surface 24. The third support surface 21 and the first setting surface 22 are arranged opposite to each other along the Z-axis direction, the first side surface 23 and the second side surface 24 are arranged opposite to each other along the X-axis direction, the first side surface 23 is connected between one side of the third support surface 21 and the first setting surface 22, and the second side surface 24 is connected between the other side of the third support surface 21 and the first setting surface 22. The first side surface 23 is a first abutting portion 600, and the first side surface 23 is a part of the surface of the first support plate 20, that is, the first abutting portion 600 includes the surface of the first support plate 20. The third support surface 21 is used to support the third display portion 1330.

[0101] The first setting surface 22 is provided with a first avoiding groove 26, a first connecting block 27, a first arc-shaped block 28, and a first protruding portion 201. The first protruding portion 201 is provided with a first guide sliding groove 251 used to be connected with the first guide sliding block 14 of the first swing arm 10. The first connecting block 27, the first avoiding groove 26, and the first arc-shaped block 28 are arranged in sequence along the Y-axis direction. The first connecting block 27 is protruded on the first setting surface 22, and the first connecting block 27 is provided with a first sliding hole 271 used to be connected with the first main swing arm 50. The first avoiding groove 26 is recessed on the first setting surface 22.

[0102] The first protruding portion 201 includes a first protruding portion 25 and a second protruding portion 29. The first guide sliding groove 251 is two, one of which is located at the first protruding portion 25, and the other (not shown in the figure) is partially located at the first protruding portion 25 and partially located at the second protruding portion 29. The first protruding portion 25 and the second protruding portion 29 are both protruded on the groove bottom surface of the first avoiding groove 26, the second protruding portion 29 is basically flush with the first setting surface 22, and the first protruding portion 25 protrudes out of the first avoiding groove 26, that is, the first protruding portion 25 is higher than the first setting surface 22. The first protruding portion 25 and the second protruding portion 29 are arranged and fixedly connected along the X-axis direction, that is, the first protruding portion and the second protruding portion 29 are integrally formed, which can facilitate processing. In other embodiments, the first protruding portion 25 and the second protruding portion 29 can also be arranged in a staggered manner along the X-axis direction. The first arc-shaped block 28 is provided with a first arc-shaped groove 281 used to be connected with the first sliding block 234 of the first mounting block. The first protruding portion 201 can be used to cooperate with the first housing 200 and the first swing arm 10 to prevent the display screen 1300 from being pressed, and can also realize the sliding and rotating connection between the first support plate 20 and the first swing arm 10. The rotating mechanism is reduced in parts, which is beneficial to the lightweight and thin design of the foldable electronic device 1000.

[0103] The first protrusion 25 includes a first end surface 252, and the second protrusion 29 includes a second end surface 291. The first end surface 252 and the second end surface 291 are opposite along the X-axis direction. An end of the first protrusion 25 away from the first end surface 252 and an end of the second protrusion 29 away from the second end surface 291 are fixedly connected. The first end surface 252 is a first abutting portion 600. The first end surface 252 is part of a surface of the first protrusion 25, that is, the first abutting portion 600 includes the surface of the first protrusion 25. The second end surface 291 is a second abutting portion 700. The second end surface 291 is part of a surface of the second protrusion 29, that is, the second abutting portion 700 includes the surface of the second protrusion 29.

[0104] Reference Figure 5 And Figure 9 , Figure 9 is Figure 5 Figure 2 is a partial structural schematic view of another perspective of the second support plate 20a of the rotating mechanism 100 shown in Figure 1. The structure of the second support plate 20a is the same as that of the first support plate 20. The second support plate 20a includes a fourth support surface 21a, a second setting surface 22a, a third side surface 23a, and a fourth side surface 24a. The third side surface 23a is a third abutting portion 600a. The fourth support surface 21a and the second setting surface 22a are opposite along the Z-axis direction. The third side surface 23a and the fourth side surface 24a are opposite along the X-axis direction. The fourth support surface 21a is used to support the third display portion 1330. The second setting surface 22a is provided with a second connecting block 27a, a second avoiding slot 26a, a second arc-shaped block 28a, and a second protrusion 201a. The second protrusion 201a is provided with a second guide sliding groove 251a used to be connected with a second guide sliding block 14a of a second swing arm. The second connecting block 27a is provided with a second sliding hole 271a used to be connected with a second main swing arm 50a. The second arc-shaped block 28a is provided with a second arc-shaped slot 281a used to be connected with a second sliding block 334 of a second mounting block.

[0105] The second protrusion 201a includes a third protrusion 25a and a fourth protrusion 29a. There are two second guide sliding grooves 251a, one of which is located at the third protrusion 25a, and the other second guide sliding groove 251a (not shown in the figure) is partially located at the third protrusion 25a and partially located at the fourth protrusion 29a. The third protrusion 25a includes a third end surface 252a, and the fourth protrusion 29a includes a fourth end surface 291a. The third end surface 252a and the fourth end surface 291a are opposite along the X-axis direction. An end of the third protrusion 25a away from the third end surface 252a and an end of the fourth protrusion 29a away from the fourth end surface 291a are fixedly connected. The third end surface 252a is a third abutting portion 600a, and the fourth end surface 291a is a fourth abutting portion 700a.

[0106] The third support plate 30 includes a fifth support surface 31 and a third setting surface 32 arranged opposite to each other along the Z-axis direction. The fifth support surface 31 is configured to support the third display portion 1330.

[0107] In some embodiments, the first support plate 20 is configured to support the first display portion 1200 and the second support plate 20a is configured to support the second display portion 1200a. Figure 10 , Figure 10 In some embodiments, the first support plate 20 is configured to support the first display portion 1200 and the second support plate 20a is configured to support the second display portion 1200a. Figure 3 FIG. 6 is a schematic view of a B-B cross-sectional structure of the foldable electronic device 1000 shown in FIG. 1. A carrier base 40 is disposed between the first housing 200 and the second housing 300. Opposite sides of the first main swing arm 50 are connected to the first housing 200 and the carrier base 40, respectively, and opposite sides of the second main swing arm 50a are connected to the second housing 300 and the carrier base 40, respectively. Specifically, one side of the first main swing arm 50 can be rotatably connected to the first rotating groove 233 of the first mounting block 230 via a rotating shaft. The other side of the first main swing arm 50 can be rotatably and slidably connected to the carrier base 40 via a sliding groove. One side of the second main swing arm 50a can be rotatably connected to the second rotating groove 333 of the second mounting block 330 via a rotating shaft, and the other side of the second main swing arm 50a can be rotatably connected to the carrier base 40 via a sliding groove.

[0108] In some embodiments, the first support plate 20 is configured to support the first display portion 1200 and the second support plate 20a is configured to support the second display portion 1200a. Figure 11 , Figure 11 In some embodiments, the first support plate 20 is configured to support the first display portion 1200 and the second support plate 20a is configured to support the second display portion 1200a. Figure 3 FIG. 7 is a schematic view of a C-C cross-sectional structure of the foldable electronic device 1000 shown in FIG. 1. Opposite sides of the first swing arm 10 are connected to the first housing 200 and the carrier base 40, respectively, and opposite sides of the second swing arm 10a are connected to the second housing 300 and the carrier base 40, respectively. Specifically, the carrier base 40 is provided with a first mounting shaft 41 and a second mounting shaft 42, and the first mounting shaft 41 and the second mounting shaft 42 are parallel to the Y-axis direction in the axial direction. The first mounting shaft 41 and the second mounting shaft 42 are arranged along the X-axis direction. The first rotating portion 11 is rotatably connected to the carrier base 40 via the first mounting shaft 41, and the first sliding portion 12 is rotatably and slidably connected to the first sliding groove 231. The second rotating portion 11a is rotatably connected to the carrier base 40 via the second mounting shaft 42, and the second sliding portion 12a is rotatably and slidably connected to the second sliding groove 331.

[0109] In some embodiments, the first support plate 20 is configured to support the first display portion 1200 and the second support plate 20a is configured to support the second display portion 1200a. Figure 10 In some embodiments, the first support plate 20 is configured to support the first display portion 1200 and the second support plate 20a is configured to support the second display portion 1200a. Specifically, the first sliding shaft 51 of the first main swing arm 50 extends into the first sliding hole 271 of the first connecting block 27, and the first sliding shaft 51 can slide in the first sliding hole 271. The second sliding shaft 51a of the second main swing arm 50a extends into the second sliding hole 271a of the second connecting block 27a, and the second sliding shaft 51a can slide in the second sliding hole 271a.

[0110] In some embodiments, the first support plate 20 is configured to support the first display portion 1200 and the second support plate 20a is configured to support the second display portion 1200a. Figure 12, reference Figure 12 , Figure 12 is Figure 3 is a schematic diagram of a D-D cross-sectional structure of the foldable electronic device 1000 shown in FIG. 1. The first guide sliding block 14 of the first swing arm 10 extends into the first protrusion of the first guide sliding groove 251, and the first guide sliding block 14 can slide in the first guide sliding groove 251. The second guide sliding block 14a of the second swing arm 10a extends into the third protrusion of the second guide sliding groove 251a, and the second guide sliding block 14a can slide in the second guide sliding groove 251a.

[0111] reference Figure 13 , Figure 13 is Figure 3 is a schematic diagram of an E-E cross-sectional structure of the foldable electronic device 1000 shown in FIG. 1. The other side of the first support plate 20 is slidingly and rotatably connected to the first housing 200, and the other side of the second support plate 20a is slidingly and rotatably connected to the second housing 300. Specifically, the first sliding block 234 of the first mounting block 230 extends into the first arc-shaped groove 281 of the first arc-shaped block 28, and the first sliding block 234 can slide in the first arc-shaped groove 281. The second sliding block 334 of the second mounting block 330 extends into the second arc-shaped groove 281a of the second arc-shaped block 28a, and the second sliding block 334 can slide in the second arc-shaped groove 281a.

[0112] The third support plate 30 is fixedly connected to the bearing base 40, and the third arrangement surface 32 of the third support plate 30 faces the bearing base 40. The third support plate 30 is located between the first support plate 20 and the second support plate 20a, the first support plate 20 shields a part of the first main swing arm 50 and a part of the first swing arm 10, and the second support plate 20a shields a part of the second main swing arm 50a and a part of the second swing arm 10a. The third support plate 30 shields another part of the first main swing arm 50, another part of the second main swing arm 50a, another part of the first swing arm 10, and another part of the second swing arm 10a.

[0113] The first main swing arm 50, the second main swing arm 50a, the first swing arm 10, and the second swing arm 10a can form a swing arm group, and the number of swing arm groups can be one or more than two. In some embodiments, the rotating mechanism 100 includes three swing arm groups, and the three swing arm groups are arranged along the Y-axis direction. One first mounting block 230 and one second mounting block 330 form a connection group, and the number of connection groups is the same as the number of swing arm groups. In some embodiments, the rotating mechanism 100 includes three connection groups. The three swing arm groups correspond to the three connection groups, respectively. In other embodiments, the number of swing arm groups and the number of connection groups can also be one, two, or four, etc., and the present application is not limited thereto. In other embodiments, the first main swing arm 50 and the second main swing arm 50a form a first swing arm group, and the first swing arm 10 and the second swing arm 10a form a second swing arm group, and the number of the first swing arm group and the second swing arm group can be different.

[0114] The rotating mechanism 100 can realize the switching of the foldable electronic device 1000 between the folded state and the unfolded state. Details are described below.

[0115] With reference to Figure 11 When the foldable electronic device 1000 is in the unfolded state, the first receiving groove 13 and the first limiting groove 232 are opposite and continuous along the Z-axis direction, and a part of the first protrusion 25 is located in the first receiving groove 13. The remaining part of the first protrusion 25 and the second protrusion 29 are located in the first mounting groove 214 and outside the first receiving groove 13 and the first limiting groove 232. Similarly, the second receiving groove 13a and the second limiting groove 332 are opposite and continuous along the Z-axis direction, and a part of the third protrusion 25a is located in the second receiving groove 13a. The remaining part of the third protrusion 25a and the fourth protrusion 29a are located in the second mounting groove 314 and outside the second receiving groove 13a and the second limiting groove 332.

[0116] With reference to Figure 14 , Figure 14 is Figure 3 is an enlarged schematic view of the main body 1200 at A shown in FIG. 12. The foldable electronic device 1000 is in the unfolded state, and the first housing 200 and the second housing 300 are unfolded relative to each other, i.e., the first housing 200 and the second housing 300 are arranged in sequence along the X-axis direction. The first mounting groove 214 and the second mounting groove 314 are continuous to form a containing groove, and the bearing base 40 is completely located in the containing groove. The first middle plate 220, the first support plate 20, the third support plate 30, the second support plate 20a, and the second middle plate 320 are arranged in sequence along the X-axis direction. The first support surface 221, the third support surface 21, the fifth support surface 31, the fourth support surface 21a, and the second support surface 321 are arranged in sequence along the Z-axis direction to form a total support surface. The display screen 1300 is arranged on the total support surface. Specifically, the first display part 1310 is adhesively fixed to the first support surface 221, and the second display part 1320 is adhesively fixed to the second support surface 321. The third display part 1330 is opposite to the third support surface 21, the fifth support surface 31, and the fourth support surface 21a. Thus, when the foldable electronic device 1000 is in the unfolded state, the display screen 1300 can be kept flat.

[0117] In the process of switching the foldable electronic device 1000 from the unfolded state to the folded state, the first swing arm 10 rotates relative to the bearing base 40 and slides and rotates relative to the first shell 200. The first main swing arm 50 rotates relative to the first shell 200, and the first main swing arm 50 slides and rotates relative to the bearing base 40. The first swing arm 10 and the first main swing arm 50 drive the first shell 200 to rotate relative to the bearing base 40. At the same time, the second swing arm 10a rotates relative to the bearing base 40 and slides and rotates relative to the second shell 300. The second main swing arm 50a rotates relative to the second shell 300, and the second main swing arm 50a slides and rotates relative to the bearing base 40. The second swing arm 10a and the second main swing arm 50a drive the second shell 300 to rotate relative to the bearing base 40, so as to switch the first shell 200 and the second shell 300 to the folded state.

[0118] In the process of movement of the first shell 200, the first swing arm 10 and the first main swing arm 50, the first guide sliding block 14 of the first swing arm 10 slides in the first guide sliding groove 251 of the first support plate 20, the first sliding shaft 51 of the first main swing arm 50 slides in the first sliding hole 271 of the first support plate 20, and the first sliding block 234 of the first shell 200 slides in the first arc-shaped groove 281 of the first support plate. The first support plate 20 slides and rotates relative to the first shell 200, the first support plate 20 slides and rotates relative to the first main swing arm 50, and the first support plate 20 slides and rotates relative to the first swing arm 10. In the process of movement of the second shell 300, the second swing arm 10a and the second main swing arm 50a, the second support plate 20a slides and rotates relative to the second shell 300, the second support plate 20a slides and rotates relative to the second main swing arm 50a, and the second support plate 20a slides and rotates relative to the second swing arm 10a.

[0119] Reference Figure 15 and Figure 16 , Figure 15 is a partial structure schematic diagram of the foldable electronic device 1000 provided by the embodiment of the application when in the folded state. Figure 16Figure 1 is a partial cross-sectional structural schematic diagram of a foldable electronic device 1000 in a folded state according to an embodiment of the present application. When the foldable electronic device 1000 is in the folded state, the first support plate 20 is located in the first mounting groove 214, the first swing arm 10 is located between the first support plate 20 and the groove bottom surface of the first sliding groove 231, and a part of the first swing arm 10 extends into the first avoiding groove 26, so that the structure of the rotating mechanism 100 is more compact. The first protrusion 25 extends into the first limiting groove 232 through the first abutting groove 13. The first groove side surface 215 is opposite to the first side surface 23, and the second groove side surface 240 is opposite to the first end surface 252. The first groove side surface 215 and the second groove side surface 240 are both first limiting parts 400, and the first side surface 23 and the first end surface 252 are both first abutting parts 600, that is, the two first limiting parts 400 are opposite to the first abutting parts 600 respectively. The first abutting parts 600 and the first limiting parts 400 opposite to each other can be understood as that there is a gap between the first abutting parts 600 and the first limiting parts 400, or the first abutting parts 600 and the first limiting parts 400 are in direct contact. However, generally, due to the reasons of processing and assembly, there is a gap h1 between the first abutting parts 600 and the first limiting parts 400.

[0120] The second protrusion 29 extends into the first abutting groove 13. The second end surface 291 is opposite to the first groove bottom surface 131. The first groove bottom surface 131 is a second limiting part 500, and the second end surface 291 is a second abutting part 700. The second limiting part 500 and the second abutting part 700 are opposite to each other. The second abutting part 700 and the second limiting part 500 opposite to each other can be understood as that there is a gap between the second abutting part 700 and the second limiting part 500, or the second abutting part 700 and the second limiting part 500 are in direct contact. However, generally, due to the reasons of processing and assembly, there is a gap h2 between the second abutting part 700 and the second limiting part 500.

[0121] Reference Figure 17 , Figure 17 is Figure 1FIG. 6 is a schematic view of a cross-section of the foldable electronic device 1000 along the A-A line shown in FIG. 1. When the foldable electronic device 1000 is in the folded state, the first housing 200 and the second housing 300 are folded relative to each other, i.e., the first housing 200 and the second housing 300 are stacked along the Z-axis direction, and the carrier base 40 is exposed on a side facing away from the display 1300, forming a part of the appearance of the foldable electronic device 1000. The total support surface is located on the inner side of the foldable electronic device 1000, the first support surface 221 and the second support surface 321 are opposite each other along the Z-axis direction, the third support surface 21 is inclined relative to the first support surface 221, and the fourth support surface 21a is inclined relative to the second support surface 321. The third support surface 21 and the fourth support surface 21a are opposite each other along the Z-axis direction. The fifth support surface 31 is located between the third support surface 21 and the fourth support surface 21a, and the fifth support surface 31 is perpendicular to the first support surface 221, thereby forming a water droplet-shaped screen space.

[0122] The display is mounted on the total support surface, so the display 1300 is also located on the inner side of the foldable electronic device 1000 and is curved in a water droplet shape. Specifically, the first display portion 1310 and the second display portion 1320 are opposite each other, the third display portion 1330 is located in the water droplet-shaped screen space, and the third display portion 1330 is curved in a water droplet shape. Of course, the third display portion 1330 can also be curved in other shapes.

[0123] When the first housing 200 and the second housing 300 are folded relative to each other and the carrier base 40 is subjected to an external impact force, the carrier base 40 is located at the bottom of the foldable electronic device 1000. The first housing 200, the first support plate 20, the first swing arm 10, and the carrier base 40 are arranged in order from top to bottom, and the second housing 300, the second support plate 20a, the second swing arm 10a, and the carrier base 40 are arranged in order from top to bottom.

[0124] Reference Figure 18 , Figure 18 is Figure 17 FIG. 7 is a schematic view of the structure of the foldable electronic device after being subjected to an external impact force. When the carrier base 40 is subjected to an external impact force, the first swing arm 10 is supported by the first mounting shaft 41, and the first swing arm 10 does not slide downward. However, the first housing 200 slides and rotates to connect the first swing arm 10, and the first support plate 20 slides and rotates to connect the first housing 200 and the first swing arm 10, so the first housing 200 and the first support plate 20 both slide downward relative to the first swing arm 10. When the first support plate 20 slides downward, the second abutting portion 700 abuts against the second limiting portion 500. When the first housing 200 slides downward, the first abutting portion 600 abuts against the first limiting portion 400.

[0125] When the first abutting part 600 abuts against the first limiting part 400, the relative positions of the first shell 200, the first support plate 20, the first swing arm 10 and the bearing base 40 are fixed. That is, the first shell 200 and the first support plate 20 are both stopped from sliding downward. The first support plate 20 slides downward by a distance equal to the width of the gap h1, and the first shell 200 slides downward by a distance equal to the sum of the widths of the gap h1 and the gap h2. The gap h1 and the gap h2 are both very small, so the third display part 1330 cannot be squeezed, and the third display part 1330 can thus be prevented from failing, and the entire display screen 1300 can ultimately be prevented from failing.

[0126] When the bearing base 40 is subjected to an external impact force, the second abutting part 700 first contacts the second limiting part 500, at which time the bearing base 40, the first swing arm 10 and the first support plate 20 are relatively fixed. Then the first limiting part 400 contacts the first abutting part 600. Because the bearing base 40, the first swing arm 10 and the first support plate 20 have already formed an integrated state, when the first shell 200 moves downward, the impact force can be instantaneously transmitted from the first support plate 20 to the bearing base 40 via the first swing arm 10, and the first shell 200 is thus stopped from moving. This prevents the impact force of the first shell 200 from being unable to be transmitted to the first swing arm 10 and the bearing base 40, and thus causing the impact force of the first shell 200 to be applied entirely to the first support plate 20, which can prevent the first support plate 20 from being damaged.

[0127] Of course, it can be understood that if the first shell 200 and the second shell 300 are relatively folded, and the bearing base 40 is not subjected to an external impact force, the second abutting part 700 has already contacted the second limiting part 500, and the first abutting part 600 has already contacted the first limiting part 400. Then, after the bearing base 40 is subjected to an external impact force, the first shell 200 and the first support plate 20 will tend to move downward, at which time the second abutting part 700 and the second limiting part 500 will abut against each other to generate an abutting force, and the first limiting part 400 and the first abutting part 600 will abut against each other to generate an abutting force. The first shell 200 and the first support plate 20 thus cannot move downward.

[0128] Similarly, when the foldable electronic device 1000 is in the folded state, the third protrusion 25a extends into the second limiting groove 332 through the second abutting groove 13a. The third groove side surface 315 is opposite to the third side surface 23a, the fourth groove side surface 340 is opposite to the third end surface 252a, the third groove side surface 315 and the fourth groove side surface 340 are both the third limiting part 400a, the third side surface 23a and the third end surface 252a are both the third abutting part 600a, and the third limiting part 400a is opposite to the third abutting part 600a. A part of the second swing arm 10a is located in the second avoiding groove 26a. The second support plate 20a is located in the second mounting groove 314, and the fourth protrusion 29a extends into the second abutting groove 13a. The second groove bottom surface 131a is opposite to the fourth end surface 291a, the second groove bottom surface 131a is the fourth limiting part 500a, and the fourth end surface 291a is the fourth abutting part 700a. That is, the fourth limiting part 500a is opposite to the fourth abutting part 700a.

[0129] The matching relationship and the action principle of the fourth limiting part 500a, the fourth abutting part 700a, the third limiting part 400a and the third abutting part 600a refer to the second limiting part 500, the second abutting part 700, the first limiting part 400 and the first abutting part 600. Thus, when the first shell 200 and the second shell 300 are folded relative to each other, and the bearing base 40 is subjected to an external impact force, the second shell 300 and the second support plate 20a move downward by a very small amount or even do not move, which can prevent the third display part 1330 from being extruded and avoid the display screen 1300 from being disabled.

[0130] In the embodiment, the groove side surface of the first mounting groove 214 and the side surface of the first support plate 20 are used as a group of the first limiting part 400 and the first abutting part 600, which is simple in structure and can prevent the display screen 1300 from being extruded. The end surface of the first protrusion 25 and the groove side surface of the first limiting groove 232 form another group of the first limiting part 400 and the first abutting part 600, which can save space and will not affect the relative movement of the first swing arm 10 and the first shell 200. The first limiting part 400, the first abutting part 600, the second limiting part 500 and the second abutting part 700 are all surface structures, which are simple in structure and convenient to process.

[0131] In addition, the two first limiting portions 400 are respectively opposite to the two first abutting portions 600, so that the contact area between the first support plate 20 and the first housing 200 is large, the force balance of the first support plate 20 and the first housing 200 is increased, and the damage to the first support plate 20 and the first housing 200 can be reduced. Similarly, the two third limiting portions 400a are opposite to the two third abutting portions 600a, so that the contact area between the second support plate 20a and the second housing 300 is large, the force balance of the second support plate 20a and the second housing 300 is increased, and the damage to the second support plate 20a and the second housing 300 can be reduced.

[0132] In the related art, with reference to Figure 19 , Figure 19 is a state change diagram of the foldable electronic device 1000 in the folded state and subjected to an external impact force in the related art. Figure 19 In (a) of FIG. 10, the state of the foldable electronic device 1000 before being subjected to an impact force is schematically illustrated. Figure 19 In (b) of FIG. 10, the state of the foldable electronic device 1000 after being subjected to an impact force is schematically illustrated. When the foldable electronic device 1000 is in the folded state, if the foldable electronic device 1000 is accidentally dropped and the bearing base 40 is the impact position, the bearing base 40 is subjected to an impact force, and under the action of the impact force, the first swing arm 10 slides relative to the first housing 200. The second swing arm 10a slides relative to the second housing 300. At this time, the first housing 200 and the second housing 300 move towards the direction of approaching the bearing base 40, the first display portion 1310 and the first housing 200 are fixedly connected, the second display portion 1320 and the second housing 300 are fixedly connected, and therefore the first display portion 1310 and the second display portion 1320 also move towards the direction of approaching the bearing base 40, at this time the third display portion 1330 is pressed. This causes the third display portion 1330 to fail, and further causes the entire display screen 1300 to fail.

[0133] Compared with the related art, in the embodiment of the present application, when the first support plate 20 slides downward, the second abutting portion 700 moves downward to abut against the second limiting portion 500. When the first housing 200 slides downward, the first abutting portion 600 abuts against the first limiting portion 400. So that the first housing 200 and the first support plate 20 can only slide downward by a very small distance, or even not slide downward. Similarly, the second housing 300 and the second support plate 20a move downward by a very small distance or even not move, which can prevent the third display portion 1330 from being pressed and avoid the failure of the display screen 1300.

[0134] In some embodiments, with reference to Figure 20 , Figure 20is a simplified structural schematic view of the first shell 200, the first support plate 20 and the first swing arm 10 when the foldable electronic device 1000 is in the folded state. The second limiting portion 500 and the second abutting portion 700 are both surface structures, and the second limiting portion 500 is parallel to the second abutting portion 700. Here, parallel includes processing and assembly errors. According to the relationship between pressure and force: F = P * S, F is the size of the force, P is the pressure, and S is the force area. When F remains unchanged, the larger S is, the smaller P is. Conversely, the smaller S is, the larger P is. The larger P is, the larger the force per unit area of the object is, and the object is more likely to be damaged.

[0135] By setting the second limiting portion 500 and the second abutting portion 700 as surface structures, and the second limiting portion 500 parallel to the second abutting portion 700, when the first shell 200 and the second shell 300 are relatively folded, and the bearing base 40 is subjected to an external impact force, the second limiting portion 500 and the second abutting portion 700 are in surface contact. According to the above relationship between pressure and force, when the impact force remains unchanged, the first support plate 20 and the first swing arm 10 have a larger contact area, which can increase the force balance of the first support plate 20 and the first swing arm 10, and the pressure received by the first support plate 20 and the first swing arm 10 is smaller, so the first support plate 20 and the first swing arm 10 are less likely to be damaged. In addition, the first support plate 20 and the first swing arm 10 have strong stability in contact, which can also prevent the first support plate 20 and the first swing arm 10 from relatively shaking, thereby increasing the structural stability of the foldable electronic device 1000.

[0136] In some other embodiments, the second limiting portion 500 and the second abutting portion 700 are set as a point contact structure. Specifically, the second limiting portion 500 includes a first hemispherical protrusion (not shown in the figure), and the second abutting portion 700 can include a second hemispherical protrusion (not shown in the figure). When the first shell 200 and the second shell 300 are relatively folded, and the bearing base 40 is subjected to an external impact force, the first hemispherical protrusion and the second hemispherical protrusion are in point contact.

[0137] In some other embodiments, the second limiting portion 500 and the second abutting portion 700 are set as a line contact structure. Specifically, the second limiting portion 500 includes a first arc-shaped protrusion (not shown in the figure), and the second abutting portion 700 can include a second arc-shaped protrusion (not shown in the figure). When the first shell 200 and the second shell 300 are relatively folded, and the bearing base 40 is subjected to an external impact force, the first arc-shaped protrusion and the second arc-shaped protrusion are in line contact.

[0138] In some embodiments, continuing to refer to Figure 20, the first limiting portion 400 and the first abutting portion 600 are both surface structures and are parallel to each other, including processing and assembly errors. When the first shell 200 and the second shell 300 are folded relative to each other and the bearing base 40 is subjected to an external impact force, the first limiting portion 400 and the first abutting portion 600 are in surface contact. According to the above pressure and force relationship, when the impact force remains unchanged, the area of contact between the first shell 200 and the first support plate 20 is larger, which can increase the force balance of the first shell 200 and the first support plate 20, and the pressure on the first shell 200 and the first support plate 20 is smaller, so the first shell 200 and the first support plate 20 are not easily damaged. In addition, the stability of the contact between the first shell 200 and the first support plate 20 is stronger, which can also prevent the first shell 200 and the first support plate 20 from relatively shaking, thereby increasing the structural stability of the foldable electronic device 1000.

[0139] In other embodiments, the first limiting portion 400 and the first abutting portion 600 are point contact structures. Specifically, the first limiting portion 400 includes a first semispherical protrusion (not shown), and the first abutting portion 600 can include a second semispherical protrusion (not shown). When the first shell 200 and the second shell 300 are folded relative to each other and the bearing base 40 is subjected to an external impact force, the first semispherical protrusion and the second semispherical protrusion are in point contact.

[0140] In other embodiments, the first limiting portion 400 and the first abutting portion 600 are line contact structures. Specifically, the first limiting portion 400 includes a first arc-shaped protrusion (not shown), and the first abutting portion 600 can include a second arc-shaped protrusion (not shown). When the first shell 200 and the second shell 300 are folded relative to each other and the bearing base 40 is subjected to an external impact force, the first arc-shaped protrusion and the second arc-shaped protrusion are in line contact.

[0141] Similarly, referring to Figure 21 , Figure 21 is a simplified structural schematic diagram of the second shell 300, the second support plate 20a, and the second swing arm 10a of the foldable electronic device 1000 in the folded state. The fourth limiting portion 500a and the fourth abutting portion 700a are both surface structures and are parallel to each other. Thus, when the impact force remains unchanged, the area of contact between the second support plate 20a and the second swing arm 10a is larger, which can increase the force balance of the second support plate 20a and the second swing arm 10a, and the pressure on the second support plate 20a and the second swing arm 10a is smaller, so the second support plate 20a and the second swing arm 10a are not easily damaged. In addition, the stability of the contact between the second support plate 20a and the second swing arm 10a is stronger, which can also prevent the second support plate 20a and the second swing arm 10a from relatively shaking, thereby increasing the structural stability of the foldable electronic device 1000.

[0142] The third limiting portion 400a and the third abutting portion 600a are both surface structures and are parallel to each other, including processing and assembly errors. When the impact force remains unchanged, the second shell 300 and the second support plate 20a have a larger contact area, which can increase the force balance of the second shell 300 and the second support plate 20a, and the pressure intensity of the second shell 300 and the second support plate 20a is smaller, and the second shell 300 and the second support plate 20a are not easy to be damaged. In addition, the contact stability of the second shell 300 and the second support plate 20a is stronger, which can also prevent the relative shaking of the second shell 300 and the second support plate 20a.

[0143] In some embodiments, the reference Figure 22 , Figure 22 is a simplified structural schematic diagram of the first support plate 20 and the first swing arm 10 when the foldable electronic device 1000 is in a folded state and subjected to an external impact force. The second limiting portion 500 is parallel to the reference surface M. The second abutting portion 700 is also parallel to the reference surface M. The reference surface M is parallel to the plane in which the thickness direction of the first shell 200 and the length direction of the first shell 200 are located. When the foldable electronic device 1000 is in a folded state and the bearing base 40 is subjected to an impact force, if the downward sliding direction of the first support plate 20 is parallel to the thickness direction of the bearing base 40. When the second limiting portion 500 and the second abutting portion 700 abut, the impact force F applied by the second abutting portion 700 to the second limiting portion 500 is vertically downward.

[0144] By setting the second limiting portion 500 and the second abutting portion 700 to be parallel to the thickness direction of the first shell 200, that is, the second limiting portion 500 and the second abutting portion 700 are perpendicular to the thickness direction of the bearing base 40. The second limiting portion 500 generates a support force F0 on the second abutting portion 700, and the support force F0 is vertically upward. The directions of the support force F0 and the impact force F are opposite, and the support force F0 and the impact force F can be offset. In this way, the downward sliding trend of the first support plate 20 can be quickly stopped, the risk of the third display screen 1300 being pressed can be reduced, and the reliability of the display screen 1300 can be improved.

[0145] Similarly, the fourth limiting portion 500a is parallel to the reference surface M. The fourth abutting portion 700a is also parallel to the reference surface M. In this way, the downward sliding trend of the second support plate 20a can be quickly stopped, the risk of the third display screen 1300 being pressed can be reduced, and the reliability of the display screen 1300 can be improved.

[0146] In some embodiments, the reference Figure 23 , Figure 23is another simplified structure schematic diagram of the first support plate 20 and the first swing arm 10 when the foldable electronic device 1000 is in the folded state and subjected to an external impact force. When the foldable electronic device 1000 is in the folded state, that is, when the first housing 200 and the second housing 300 are relatively folded, the second limiting portion 500 is inclined relative to the reference surface M, and the second limiting portion 500 faces the second housing 300. That is, the second limiting portion 500 is inclined downward relative to the reference surface M, and the second abutting portion 700 is also inclined downward relative to the reference surface M. Here, inclined downward means that, taking the direction in Figure 23 as the reference, taking the positive direction of the Z axis as "right", taking the negative direction of the Z axis as "left", taking the positive direction of the X axis as "up", and taking the negative direction of the X axis as "down", the second limiting portion 500 is inclined from the upper left direction to the lower right direction. In the first aspect, the contact area of the second limiting portion 500 and the second abutting portion 700 can be increased. According to the relationship between the pressure and the force, the contact area of the first support plate 20 and the first swing arm 10 is increased, and in the case where the impact force remains unchanged, the pressure received by the first support plate 20 and the first swing arm 10 is reduced, and thus the force per unit area received by the first support plate 20 and the first swing arm 10 is reduced, further reducing the risk of damage to the first support plate 20 and the first swing arm 10.

[0147] In the second aspect, when the foldable electronic device 1000 is in the folded state and the bearing base 40 is subjected to an impact force, if the direction in which the first support plate 20 slides downward is inclined relative to the thickness direction of the bearing base 40. Then, when the second limiting portion 500 and the second abutting portion 700 abut, the impact force F applied by the second abutting portion 700 to the second limiting portion 500 is inclined downward.

[0148] By setting the second limiting portion 500 and the second abutting portion 700 to be inclined downward, the second limiting portion 500 generates a support force F0 on the second abutting portion 700, the support force F0 is inclined upward, the direction of the support force F0 is opposite to that of the impact force F, and the support force F0 can offset the impact force F. In this way, the downward sliding trend of the first support plate 20 can be quickly stopped, the risk of the third display screen 1300 being pressed can be reduced, and the reliability of the display screen 1300 can be improved.

[0149] Similarly, when the foldable electronic device 1000 is in the folded state, that is, when the first housing 200 and the second housing 300 are relatively folded, the fourth limiting portion 500a is inclined relative to the reference surface M, and the fourth limiting portion 500a faces the first housing 200. That is, the fourth limiting portion 500a is inclined downward, and the fourth abutting portion 700a is also inclined downward relative to the reference surface M. In a first aspect, the contact area between the second support plate 20a and the second swing arm 10a is increased, and in the case where the impact force remains unchanged, the pressure intensity borne by the second support plate 20a and the second swing arm 10a is reduced, so that the force borne by the second support plate 20a and the second swing arm 10a per unit area is reduced, further reducing the risk of damage to the second support plate 20a and the second swing arm 10a. In a second aspect, the downward sliding trend of the second support plate 20a can be quickly stopped, the risk of the third display screen 1300 being pressed is reduced, and the reliability of the display screen 1300 is improved.

[0150] In some embodiments, continuing to refer to Figure 23 , the included angle a between the second limiting portion 500 and the reference surface M satisfies the following condition: 0 degrees < a ≤ 45 degrees. a can be 5°, 10°, 15°, 20°, 25°, 30°, 35°, 40°, 45°, and the like. It can be understood that the second limiting portion 500 and the second abutting portion 700 are parallel, and therefore, the inclination direction and the inclination angle of the second abutting portion 700 and the second limiting portion 500 are the same.

[0151] When the foldable electronic device 1000 is in the folded state and the bearing base 40 is subjected to an external impact force, the first support plate 20 slides in the direction close to the first swing arm 10, so that the second limiting portion 500 and the second abutting portion 700 abut. If both the second limiting portion 500 and the second abutting portion 700 are inclined surfaces, the support force F0 generated by the second limiting portion 500 on the second abutting portion 700 is perpendicular to the second limiting portion 500, and the support force F0 can be decomposed into a first force F01 and a second force F02, the direction of the first force F01 is parallel to the thickness direction of the first housing 200, and the direction of the second force F02 is parallel to the width direction of the first housing 200. Among them, the second force F02 can prevent the first support plate 20 from continuing to slide. If the included angle a is greater than 45 degrees, it may cause the second force F02 to be too small, and thus even if the second limiting portion 500 and the second abutting portion 700 abut, the first support plate 20 cannot be prevented from continuing to slide.

[0152] By setting the inclination angle a of the second limiting portion 500 to be between 0 degrees and 45 degrees, in a first aspect, the contact area between the second limiting portion 500 and the second abutting portion 700 can be increased, and thus the stability of the contact between the first support plate 20 and the first swing arm 10 is increased. In a second aspect, sufficient abutting force is provided between the first support plate 20 and the first swing arm 10, which can prevent the first support plate 20 from sliding relative to the first swing arm 10.

[0153] Similarly, by setting the inclination angle of the fourth limiting portion 500a to be between 0 degrees and 45 degrees, the first aspect can increase the contact area of the fourth limiting portion 500a and the fourth abutting portion 700a, thereby increasing the stability of the contact between the second support plate 20a and the second swing arm 10a. The second aspect enables sufficient abutting force between the second support plate 20a and the second swing arm 10a, which can prevent the second support plate 20a from sliding relative to the second swing arm 10a.

[0154] In some embodiments, with reference to Figure 24 , Figure 24 is a simplified structural schematic diagram of the first support plate 20 and the first housing 200 when the foldable electronic device 1000 is in a folded state and subjected to an external impact force. The first limiting portion 400 is parallel to the reference surface M. The first abutting portion 600 is also parallel to the reference surface M. When the foldable electronic device 1000 is in a folded state and the carrier base 40 is subjected to an impact force, if the direction in which the first housing 200 slides downward is parallel to the thickness direction of the carrier base 40, the impact force FA generated by the first limiting portion 400 on the first abutting portion 600 is vertically downward, and the support force FA0 exerted by the first abutting portion 600 on the first limiting portion 400 is vertically upward. The support force FA0 and the impact force FA can cancel each other out. In this way, the downward sliding trend of the first housing 200 can be quickly stopped, the risk of the third display screen 1300 being squeezed can be reduced, and the reliability of the display screen 1300 can be improved.

[0155] Similarly, the third limiting portion 400a is parallel to the reference surface M. The third abutting portion 600a is also parallel to the reference surface M. In this way, the downward sliding trend of the second housing 300 can be quickly stopped, the risk of the third display screen 1300 being squeezed can be reduced, and the reliability of the display screen 1300 can be improved.

[0156] In some embodiments, with reference to Figure 25 , Figure 25 is another simplified structural schematic diagram of the first support plate 20 and the first housing 200 when the foldable electronic device 1000 is in a folded state and subjected to an external impact force. The first limiting portion 400 is inclined relative to the reference surface M, and the first limiting portion 400 faces the second housing 300. That is, the first limiting portion 400 is inclined downward relative to the reference surface M, and the first abutting portion 600 is also inclined downward relative to the reference surface M. Here, inclined downward means that, when the foldable electronic device 1000 is in a folded state, the first limiting portion 400 is inclined downward relative to the reference surface M, and the first abutting portion 600 is also inclined downward relative to the reference surface M. Figure 25The direction in the figure is taken as a reference, with the positive direction of the Z axis being "right", the negative direction of the Z axis being "left", the positive direction of the X axis being "up", and the negative direction of the X axis being "down". The first limiting portion 400 is inclined from the upper left direction to the lower right direction. In the first aspect, the contact area of the first limiting portion 400 and the first resisting portion 600 can be increased. The stability of the contact between the first shell 200 and the first support plate 20 is further improved, and the force balance of the first shell 200 and the first support plate 20 is further improved, and the risk of damage to the first shell 200 and the first support plate 20 is further reduced.

[0157] In the second aspect, the foldable electronic device 1000 is in a folded state, and when the bearing base 40 is subjected to an impact force, if the direction in which the first shell 200 slides downward is inclined relative to the thickness direction of the bearing base 40. When the first limiting portion 400 and the first resisting portion 600 abut, the first limiting portion 400 generates an inclined downward impact force FA on the first resisting portion 600.

[0158] By setting the first limiting portion 400 and the first resisting portion 600 to be inclined downward, the support force FA0 provided by the first resisting portion 600 to the first limiting portion 400 is inclined upward, and the directions of the impact force FA and the support force FA0 are opposite. The support force FA0 can offset the impact force FA. In this way, the downward sliding trend of the first shell 200 can be quickly stopped, the risk of the third display screen 1300 being pressed is reduced, and the reliability of the display screen 1300 is improved.

[0159] Similarly, the third limiting portion 400a is inclined downward relative to the reference surface M, and the third resisting portion 600a is also inclined downward relative to the reference surface M. The contact area of the third limiting portion 400a and the third resisting portion 600a can be increased. The stability of the contact between the second shell 300 and the second support plate 20a is further improved, and the force balance of the second shell 300 and the second support plate 20a is further improved, and the risk of damage to the second shell 300 and the second support plate 20a is further reduced. And it can also quickly stop the downward sliding trend of the second shell 300, reduce the risk of the third display screen 1300 being pressed, and improve the reliability of the display screen 1300.

[0160] In some embodiments, continuing to refer to Figure 25, the included angle between the first limiting portion 400 and the reference surface M satisfies the following condition: 0 degrees < b ≤ 45 degrees. b can be 5°, 10°, 15°, 20°, 25°, 30°, 35°, 40°, 45°, etc. When the foldable electronic device 1000 is in a folded state and the bearing base 40 is subjected to an external impact force, the first shell 200 slides in a direction close to the first support plate 20, so that the first limiting portion 400 and the first abutting portion 600 abut. If the first limiting portion 400 and the first abutting portion 600 are both inclined surfaces, the support force FA0 provided by the first abutting portion 600 to the first limiting portion 400 is inclined upward, and the support force FA0 can be decomposed into a first force FA01 and a second force FA02. The direction of the first force FA01 is parallel to the thickness direction of the first shell 200, and the direction of the second force FA02 is parallel to the width direction of the first shell 200. Among them, the second force FA02 can prevent the first shell 200 from continuing to slide. If the included angle b is greater than 45 degrees, the second force FA02 may be too small, which may cause the first shell 200 to continue to slide even if the first limiting portion 400 and the first abutting portion 600 abut.

[0161] By setting the inclination angle b of the first limiting portion 400 to be between 0 degrees and 45 degrees, the first aspect can increase the contact area of the first limiting portion 400 and the first abutting portion 600, thereby increasing the stability of the contact between the first shell 200 and the first support plate 20. The second aspect allows the first shell 200 and the first support plate 20 to have sufficient abutting force between them, which can prevent the first shell 200 from sliding relative to the first support plate 20.

[0162] Similarly, by setting the inclination angle of the third limiting portion 400a to be between 0 degrees and 45 degrees, the second aspect can increase the contact area of the third limiting portion 400a and the third abutting portion 600a, thereby increasing the stability of the contact between the second shell 300 and the second support plate 20a. The second aspect allows the second shell 300 and the second support plate 20a to have sufficient abutting force between them, which can prevent the second shell 300 from sliding relative to the second support plate 20a.

[0163] In another specific embodiment, the reference Figure 26 , Figure 26is a cross-sectional structure schematic diagram of the foldable electronic device 1000 in the folded state provided by another embodiment of the present application. The second limiting part 500 is the groove bottom surface of the first abutting groove 13, and the second abutting part 700 is the end surface of the second protrusion 29. The first limiting part 400 is the groove side surface of the first mounting groove 214, and the first abutting part 600 is one side surface of the first support plate 20. That is, compared with the above embodiment, in the present embodiment, the first limiting part 400 and the first abutting part 600 are both one. Thus, the structural complexity of the foldable electronic device 1000 is simplified, and the display screen can be prevented from being squeezed.

[0164] Similarly, the second support plate 20a and the second swing arm 10a are matched through the fourth limiting part 500a and the fourth abutting part 700a. The second support plate 20a and the second housing 300 are matched through the third limiting part 400a and the third abutting part 600a.

[0165] In some embodiments, with reference to Figure 27 , Figure 27 is Figure 5 a partial structure schematic diagram of the rotating mechanism 100 shown in FIG. 1. The rotating mechanism 100 further includes a first limiting part 60, a second limiting part 61, a first main elastic part 62, a second main elastic part 63, a first sliding part 64, a second sliding part 65, a first pushing part 66, a second pushing part 67, a first driving part 68, and a second driving part 69. The first sliding part 64 and the second sliding part 65 are fixedly connected through a first connecting part 70. The first pushing part 66 and the second pushing part 67 are fixedly connected through a second connecting part 71. The first driving part 68 and the second driving part 69 are fixedly connected through a third connecting part 72. The third connecting part 72 and the second connecting part 71 are fixedly connected through a fourth connecting part (not shown in the figure).

[0166] The first swing arm 10 is provided with a first concave-convex wheel 111 and a second concave-convex wheel 112 at both ends of the first rotating part 11. The second swing arm 10a is provided with a third concave-convex wheel 111a and a fourth concave-convex wheel 112a at both ends of the second rotating part 11a.

[0167] The first concave-convex wheel 111 is provided with a first concave-convex part, the second concave-convex wheel 112 is provided with a second concave-convex part, the third concave-convex wheel 111a is provided with a third concave-convex part, and the fourth concave-convex wheel 112a is provided with a fourth concave-convex part. The first sliding part 64 is provided with a first matching part 75, the first pushing part 66 is provided with a second matching part 76, the second sliding part 65 is provided with a third matching part 77, and the second pushing part 67 is provided with a fourth matching part 78. The first concave-convex part to the fourth concave-convex part and the first matching part 75 to the fourth matching part 78 all include concave parts and convex parts arranged alternately.

[0168] The first swing arm 10, the first mounting shaft 41, the first limiting part 60, the first main elastic part 62, and the first sliding part 64 cooperate to provide a damping force for the first shell 200.

[0169] Specifically, the first limiting part 60 is fixed to the first mounting shaft 41, the first main elastic part 62 and the first sliding part 64 are both slidingly connected to the first mounting shaft 41, and the two ends of the first main elastic part 62 abut against the first limiting part 60 and the first sliding part 64 respectively. The first concave-convex wheel 111 and the first rotating part 11 are both rotationally connected to the first mounting shaft 41. In the axial direction of the first mounting shaft 41, the first limiting part 60, the first main elastic part 62, the first sliding part 64, the first concave-convex wheel 111, and the first rotating part 11 are arranged in sequence. The first concave-convex part cooperates with the first matching part 75.

[0170] It can be understood that the first limiting part 60 can be a snap spring, and the snap spring is fixedly clamped to the first limiting part 60. The first main elastic part 62 can be a spring, and the spring is slidingly sleeved on the first mounting shaft 41. The first sliding part 64 is provided with a through hole penetrating in the Y-axis direction. The first mounting shaft 41 penetrates through the through hole of the first sliding part 64, the through hole of the first concave-convex wheel 111, and the rotating hole of the first rotating part 11, so that the first sliding part 64 is slidingly connected to the first mounting shaft 41, and the first concave-convex wheel 111 and the first rotating part 11 are both rotationally connected to the first mounting shaft 41.

[0171] When the foldable electronic device 1000 is in the unfolded state, the rotating mechanism 100 is in the unfolded state, the convex part of the first concave-convex part of the first concave-convex wheel 111 abuts against the concave part of the first matching part 75, and the first main elastic part 62 is in a pre-compressed state. At this time, the first main elastic part 62 is kept in the pre-compressed state to provide a support force for keeping the first shell 200 in the unfolded state.

[0172] When the foldable electronic device 1000 switches from the unfolded state to the folded state, the first housing 200 rotates about the bearing base 40, the first sliding part 12 slides in the first sliding groove 231, the first rotating part 11 and the first concave-convex wheel 111 rotate about the first mounting shaft 41, and during the rotation of the first concave-convex wheel 111, the convex part of the first concave-convex part of the first concave-convex wheel 111 gradually abuts against the convex part of the first matching part 75, and the first sliding part 64 gradually moves to the negative direction of the Y axis to compress one end of the first main elastic part 62, that is, the first main elastic part 62 is in a pre-compressed state to provide a damping force for the first housing 200.

[0173] When the foldable electronic device 1000 is in the folded state, the rotating mechanism 100 is in the folded state, the convex part of the first concave-convex part of the first concave-convex wheel 111 abuts against the concave part of the first matching part 75, and the first main elastic part 62 returns to the pre-compressed state to provide a support force for the first housing 200 to keep it in the folded state.

[0174] In some embodiments, continuing to refer to Figure 27 The second concave-convex wheel 112, the first pushing part 66 and the first driving part 68 can also be used to compress one end of the first main elastic part 62 away from the first sliding part 64 to increase the compression stroke of the first main elastic part 62 and further increase the damping force provided for the first housing 200.

[0175] Specifically, the second concave-convex wheel 112 is rotationally connected to the first mounting shaft 41, and the first pushing part 66 and the first driving part 68 are both slidingly connected to the first mounting shaft 41. Along the axial direction of the first mounting shaft 41, the first driving part 68 is located between the first main elastic part 62 and the first limiting part 60, the second concave-convex wheel 112 is located at one end of the first rotating part 11 away from the first concave-convex wheel 111, and the first pushing part 66 is located at one side of the second concave-convex wheel 112 away from the first rotating part 11. That is, the first driving part 68, the first main elastic part 62, the first sliding part 64, the first concave-convex wheel 111, the first rotating part 11, the second concave-convex wheel 112 and the first pushing part 66 are arranged in sequence along the axial direction of the first mounting shaft 41. The two ends of the first main elastic part 62 abut against the first sliding part 64 and the first pushing part 66 respectively. The second concave-convex part and the second matching part 76 are matched.

[0176] It can be understood that the first pushing part 66 and the first driving part 68 are both provided with a through hole penetrating in the Y axis direction, and the first mounting shaft 41 penetrates through the through holes of the first pushing part 66 and the first driving part 68 to slidingly connect the first pushing part 66 and the first driving part 68 to the first mounting shaft 41. The first mounting shaft 41 penetrates through the through hole of the second concave-convex wheel 112 to rotationally connect the second concave-convex wheel 112 to the first mounting shaft 41.

[0177] When the foldable electronic device 1000 is in the unfolded state, the protrusions of the second concave-convex part and the concave part of the second matching part 76 abut.

[0178] When the foldable electronic device 1000 is switched from the unfolded state to the folded state, the first shell 200 rotates around the bearing base 40, the first sliding part 12 slides in the first sliding groove 231, and the first rotating part 11 simultaneously drives the first concave-convex wheel 111 and the second concave-convex wheel 112 to rotate along the first mounting shaft 41. During the rotation of the first concave-convex wheel 111, the protrusions of the first concave-convex wheel 111 gradually abut against the protrusions of the first matching part 75. In this process, the first sliding part 64 gradually moves to the negative direction of the Y-axis to compress one end of the first main elastic part 62. At the same time, during the rotation of the second concave-convex wheel 112, the protrusions of the second concave-convex wheel 112 gradually abut against the protrusions of the second matching part 76. In this process, the first pushing part 66 gradually moves to the positive direction of the Y-axis, and the first pushing part 66 drives the first driving part 68 to gradually move to the positive direction of the Y-axis to compress the other end of the first main elastic part 62, so as to provide damping force for the first main elastic part 62. The two ends of the first main elastic part 62 are synchronously compressed, and the compression stroke of the first main elastic part 62 is doubled, so that the damping force provided by the first main elastic part 62 for the first shell 200 is greatly increased.

[0179] In some embodiments, continuing to refer to Figure 27 , the second rotating part 11a, the third concave-convex wheel 111a, the fourth concave-convex wheel 112a, the second mounting shaft 42, the second limiting part 61, the second main elastic part 63, the second sliding part 65, the second pushing part 67 and the second driving part 69 cooperate to provide damping force for the second shell 300. The process of obtaining damping force by the second shell 300 is the same as that of the first shell 200, which will not be repeated. The principle of the third concave-convex wheel 111a ensuring that the second main elastic part 63 provides sufficient damping force is the same as that of the first concave-convex wheel 111 ensuring that the first main elastic part 62 provides sufficient damping force, and the principle of the fourth concave-convex wheel 112a ensuring that the second main elastic part 63 provides sufficient damping force is the same as that of the second concave-convex wheel 112 ensuring that the first main elastic part 62 provides sufficient damping force, which will not be repeated.

[0180] In some embodiments, continuing to refer to Figure 27 The damping force can be further increased by using auxiliary elastic parts 79 and auxiliary shafts (not shown in the figure). The number of auxiliary shafts and auxiliary elastic parts 79 can be one, two, three or four, etc., which is not limited in the present application. Specifically, the opposite ends of the auxiliary shaft are respectively slidably connected to the first connecting part 70 and the third connecting part 72. The auxiliary elastic part 79 is slidably sleeved on the auxiliary shaft.

[0181] When the first sliding member 64 moves along the negative direction of the Y axis and the first driving member 68 moves along the positive direction of the Y axis, the first connecting member 70 is fixedly connected to the first sliding member 64, and the third connecting member 72 is fixedly connected to the first driving member 68. Thus, the first connecting member 70 moves synchronously with the first sliding member 64, and the third connecting member 72 moves synchronously with the first driving member 68, so that the two ends of the auxiliary elastic member 79 are synchronously compressed, thereby increasing the damping force.

[0182] In some embodiments, continuing to refer to Figure 27 , the outer circumferential surface of the first rotating part 11 is provided with first driving teeth 113, and the outer circumferential surface of the second rotating part 11a is provided with second driving teeth 113a. The first rotating part 11 is rotatably connected to the first mounting shaft 41, and the second rotating part 11a is rotatably connected to the second mounting shaft 42. The first driving teeth 113 and the second driving teeth 113a are in transmission connection. Thus, the synchronism of the rotation of the first housing 200 and the second housing 300 can be realized.

[0183] When the first housing 200 rotates around the bearing base 40, the second housing 300 can be driven to rotate synchronously. When the second housing 300 rotates around the bearing base 40, the first housing 200 can be driven to rotate synchronously. Hereinafter, the case that the first housing 200 rotates around the bearing base 40 to drive the second housing 300 to rotate synchronously will be described.

[0184] Specifically, when the first housing 200 rotates around the bearing base 40, the first rotating part 11 of the first swing arm 10 rotates, and the first driving teeth 113 and the second driving teeth 113a are in transmission connection, so that the first rotating part 11 drives the second rotating part 11a of the second swing arm 10a to rotate. The second rotating part 11a drives the second sliding part 12a to slide and rotate, and the second sliding part 12a drives the second housing 300 to rotate, thereby realizing the synchronous rotation of the first housing 200 and the second housing 300.

[0185] In some embodiments, the rotating mechanism 100 further comprises a support frame (not shown in the figure) and N synchronous gears, where N is an even number, i.e., the number of synchronous gears can be two, four, six, or eight, etc. In a specific embodiment, the number of synchronous gears is two. Continuing to refer to Figure 27 , the two synchronous gears are respectively a first synchronous gear 73 and a second synchronous gear 74, the first synchronous gear 73 and the second synchronous gear 74 are in meshing with each other, the first synchronous gear 73 is further in meshing with the first driving teeth 113, and the second synchronous gear 74 is further in meshing with the second driving teeth 113a.

[0186] The support frame is arranged between the first rotating part 11 and the second rotating part 11a, and the first mounting shaft 41 and the second mounting shaft 42 both further pass through the support frame. The fixed shafts, which are protruded from the two ends of the synchronous gears, are respectively connected to the support frame and the second connecting member 71.

[0187] When the first shell 200 rotates around the bearing base 40, the first rotating part 11 of the first swing arm 10 rotates, and the power of the first rotating part 11 is transmitted to the second rotating part 11a through the first driving tooth 113, the first synchronous gear 73, the second synchronous gear 74 and the second driving tooth 113a, so that the second rotating part 11a of the second swing arm 10a rotates. The second rotating part 11a drives the second sliding part 12a to slide and rotate, the second sliding part 12a drives the second shell 300 to rotate, and synchronous rotation of the first shell 200 and the second shell 300 is realized.

[0188] In other embodiments, the rotating mechanism 100 can not be provided with a synchronous gear, but can be directly meshed through the first driving tooth 113 and the second driving tooth 113a to realize synchronous transmission.

[0189] The above is only part of the embodiments and implementation manners of the present application, and the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A foldable electronic device, characterized by, The utility model relates to a foldable electronic equipment, including: First shell, second shell, bearing base, first swing arm, second swing arm and first support plate; The bearing base is arranged between the first shell and the second shell, and opposite sides of the first swing arm are connected with the first shell and the bearing base respectively;Opposite sides of the second swing arm are connected with the second shell and the bearing base respectively;The first support plate is slidably and rotatably connected with the first shell and the first swing arm respectively; The first shell is equipped with first installation groove, and the first installation groove is equipped with first limiting portion;The first swing arm is equipped with second limiting portion;The first support plate is equipped with first abutting portion and second abutting portion; When the foldable electronic equipment is in a folded state, the first abutting portion is opposite to the first limiting portion, and the second limiting portion is opposite to the second abutting portion; The first limiting portion includes the inner wall surface of the first installation groove, and the first abutting portion includes the surface of the first support plate.

2. The foldable electronic device of claim 1, wherein, The first installation groove is equipped with first sliding groove, and the first swing arm is slidably and rotatably connected with the first sliding groove;The first sliding groove is equipped with the first limiting portion; The first swing arm is located between the first support plate and the groove bottom surface of the first sliding groove;The first support plate is equipped with first protrusion, and when the foldable electronic equipment is in a folded state, the first protrusion penetrates the first swing arm along the thickness direction of the first swing arm and extends into the first sliding groove;The first protrusion is equipped with the first abutting portion.

3. The foldable electronic device of claim 2, wherein, The first sliding groove is equipped with first limiting groove, the first limiting portion includes the inner wall surface of the first limiting groove, and the first abutting portion includes the surface of the first protrusion.

4. The foldable electronic device of claim 3, wherein, The first shell includes first middle frame and first mounting block, the first middle frame is equipped with the first installation groove;The first mounting block is fixed in the first installation groove, the first mounting block is equipped with the first sliding groove, and the first limiting groove is arranged on the groove bottom surface of the first sliding groove.

5. The foldable electronic device according to any one of claims 1 to 4, wherein, The first swing arm is equipped with first abutting groove, and the first abutting groove is equipped with the second limiting portion;The first support plate is equipped with second protrusion, and when the foldable electronic equipment is in a folded state, at least part of the second protrusion extends into the first abutting groove;The second protrusion is equipped with the second abutting portion.

6. The foldable electronic device of claim 5, wherein, The second limiting portion includes the inner wall surface of the first abutting groove, and the second abutting portion includes the surface of the second protrusion.

7. The foldable electronic device of any of claims 1-4, wherein, The first limiting portion and the first abutting portion are parallel.

8. The foldable electronic device of claim 7, wherein, The first limiting portion is parallel to the reference surface;The reference surface is parallel to the plane where the thickness direction of the first shell and the length direction of the first shell are located.

9. The foldable electronic device of claim 7, wherein, When the foldable electronic equipment is in a folded state, the first limiting portion is inclined relative to the reference surface, and the first limiting portion faces the second shell;The reference surface is parallel to the plane where the thickness direction of the first shell and the length direction of the first shell are located.

10. The foldable electronic device of claim 9, wherein, The included angle b between the first limiting portion and the reference surface satisfies the following condition: 0 degrees < b ≤ 45 degrees.

11. The foldable electronic device of claim 7, wherein, The first swing arm is provided with a first holding groove, and the second limiting part is arranged in the first holding groove; the first supporting plate is provided with a second protrusion, and at least part of the second protrusion extends into the first holding groove when the foldable electronic device is in a folded state; and the second protrusion is provided with the second holding part.

12. The foldable electronic device of claim 11, wherein, The second limiting part comprises an inner wall surface of the first holding groove, and the second holding part comprises a surface of the second protrusion.

13. The foldable electronic device of any of claims 1-4, wherein, The second limiting part and the second holding part are parallel to each other.

14. The foldable electronic device of claim 13, wherein, The second limiting part is parallel to a reference surface, and the reference surface is parallel to a plane in which a thickness direction of the first shell and a length direction of the first shell are located.

15. The foldable electronic device of claim 13, wherein, When the foldable electronic device is in a folded state, the second limiting part is inclined relative to the reference surface, and the second limiting part faces the second shell; the reference surface is parallel to a plane in which a thickness direction of the first shell and a length direction of the first shell are located.

16. The foldable electronic device of claim 15, wherein, An included angle a between the second limiting part and the reference surface satisfies the following condition: 0 degrees < a ≤ 45 degrees.

17. The foldable electronic device of claim 13, wherein, The first swing arm is provided with a first holding groove, and the second limiting part is arranged in the first holding groove; the first supporting plate is provided with a second protrusion, and at least part of the second protrusion extends into the first holding groove when the foldable electronic device is in a folded state; and the second protrusion is provided with the second holding part.

18. The foldable electronic device of claim 17, wherein, The second limiting part comprises an inner wall surface of the first holding groove, and the second holding part comprises a surface of the second protrusion.

19. The foldable electronic device of claim 13, wherein, The first limiting part and the first holding part are parallel to each other.

20. The foldable electronic device of claim 19, wherein, The first limiting part is parallel to a reference surface, and the reference surface is parallel to a plane in which a thickness direction of the first shell and a length direction of the first shell are located.

21. The foldable electronic device of claim 19, wherein, When the foldable electronic device is in a folded state, the first limiting part is inclined relative to the reference surface, and the first limiting part faces the second shell; the reference surface is parallel to a plane in which a thickness direction of the first shell and a length direction of the first shell are located.

22. The foldable electronic device of claim 21, wherein, An included angle b between the first limiting part and the reference surface satisfies the following condition: 0 degrees < b ≤ 45 degrees.

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