Foldable electronic equipment

Abstract

The invention discloses foldable electronic equipment which comprises a first shell, a second shell, a bearing base, a first swing arm, a second swing arm and a first supporting 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 supporting plate is provided with a first abutting part and a second abutting part. The first swing arm is slidably and rotatably connected with the first mounting groove; when the foldable electronic equipment 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 external impact force, the second abutting part abuts against the second limiting part, and the first abutting part abuts against the first limiting part. The first supporting plate and the first shell are prevented from sliding downwards, and the display screen is prevented from being extruded and losing efficacy.

Description

Technical Field

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

[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 advantages of large display area and easy portability.

[0003] However, current foldable electronic devices, when subjected to impact from a fall, will have their display screen squeezed, causing the display screen to fail. Summary of the invention

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

[0005] The embodiment of 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 includes an unfolded state and a folded state.

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

[0007] One side of the first swing arm is slidably and rotatably connected to the first shell, and the other side of the first swing arm is rotatably connected to the bearing base. Specifically, the first swing arm includes a first rotating part and a first sliding part that are fixedly connected, the first rotating part is rotatably connected to the bearing base through a first mounting shaft, and the first sliding part is slidably and rotatably connected to the first sliding groove. One side of the second swing arm is slidably and rotatably connected to the second shell, and the other side of the second swing arm is rotatably connected to the bearing base. Specifically, the second swing arm includes a second rotating part and a second sliding part that are fixedly connected, the second rotating part is rotatably connected to the bearing base through a second mounting shaft, and the second sliding part is slidably and rotatably connected to the second sliding groove.

[0008] The first support plate is connected to the first housing and the first swing arm in a sliding and rotatable manner. Specifically, the first support plate is connected to the first mounting block and the first swing arm in a sliding and rotatable manner.

[0009] Generally, a 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 unfold or fold accordingly. The first display part and the second display part are both fixed, so the first display part and the second display part will not bend. The third display part will bend or unfold as the state of the foldable electronic device changes. When the foldable electronic device is in the unfolded state, the third display part will bend into a teardrop shape. At this time, if the supporting base is subjected to an external impact force, the first shell will move a long distance in the direction close to the supporting base, which will cause the third display part to be squeezed and fail, and finally cause the entire display screen to fail.

[0011] In order to solve the above problems, in the present application, a first limiting portion is provided in the first mounting groove; a second limiting portion is provided in the first swing arm; and a first supporting portion and a second supporting portion are provided in the first support plate. When the foldable electronic device is in a folded state, the first supporting portion is opposite to the first limiting portion, and the second limiting portion is opposite to the second supporting portion. The first supporting portion being opposite to the first limiting portion means that the first supporting portion is in direct contact with the first limiting portion, or that there is a gap between the first supporting portion and the first limiting portion. Similarly, the second limiting portion being opposite to the second supporting portion means that the second limiting portion is in direct contact with the second supporting portion, or that there is a gap between the second limiting portion and the second supporting portion.

[0012] If there is a gap between the first supporting portion and the first limiting portion, the first shell and the second shell are relatively folded, 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 rotates to connect the first swing arm, and the first support plate slides and rotates to connect 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 supporting portion abuts against the second limiting portion. When the first shell slides downward, the first supporting portion abuts against the first limiting portion.

[0013] Of course, it is understandable that if the first shell and the second shell are folded relative to each other and the bearing base is not subjected to external impact force, the second abutting portion has already contacted the second limiting portion, and the first abutting portion has already contacted the first limiting portion. After the bearing base is subjected to external impact force, the first shell and the first support plate will tend to move downward, at which time the second abutting portion and the second limiting portion will abut against each other to generate a holding force, and the first limiting portion and the first abutting portion will abut against each other to generate a holding force. As a result, the first shell and the first support plate cannot move downward.

[0014] After the second abutting portion abuts against the second limiting portion, and the first abutting portion abuts against the first limiting portion, the relative positions of the first housing, the first support plate, the first swing arm, and the bearing base are fixed. That is, the first housing and the first support plate both stop sliding down. Therefore, the third display portion will not be squeezed, thereby preventing the third display portion from failing, and ultimately preventing the entire display screen from failing.

[0015] It is understandable that when the bearing base is subjected to an external impact force, the second abutting portion first contacts the second limiting portion, at which 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 already formed an integral state, when the first shell moves downward, the impact force can be instantly transmitted from the first support plate to the bearing base via the first swing arm, thereby stopping the movement of the first shell. This prevents the impact force of the first shell from being unable to be transmitted to the first swing arm and the bearing base, thereby causing all the impact force of the first shell to act on the first support plate, thereby preventing the first support plate from being damaged.

[0016] In some embodiments, the first limiting portion includes the inner wall surface of the first mounting groove, and the first abutting portion includes the surface of the first support plate. That is, the structure of the first mounting groove itself is used as the first limiting portion, and the structure of the first support plate itself is used as the first abutting portion. This can prevent the display screen from being squeezed and simplify the structure of the foldable electronic device.

[0017] In some embodiments, a first sliding groove is provided in the first mounting groove, and the first swing arm slides and rotates to connect the first sliding groove; a first limiting portion is provided in the first sliding groove. The first swing arm is located between the first support plate and the bottom surface of the first sliding groove; the first support plate is provided with a first protrusion, and when the foldable electronic device 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 provided with a first abutting portion. The contact area between the first shell and the first support plate can be increased, so that the force on the first shell and the first support plate is more balanced, so as to reduce the damage to 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 groove to prevent the display screen from being squeezed. Space can be saved and the relative movement of the first swing arm and the first shell will not be affected.

[0018] In some embodiments, a first limiting groove is provided in the first sliding 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. 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 includes 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 provided on the bottom surface of the first sliding groove.

[0020] In some embodiments, the first swing arm is provided with a first abutting groove, and a second limiting portion is provided in the first abutting groove; the first support plate is provided with a second protrusion, and when the foldable electronic device is in a folded state, at least a portion of the second protrusion extends into the first abutting groove; the second protrusion is provided with a second abutting portion. The second limiting portion and the second abutting portion cooperate with the interior of the first abutting groove to prevent the display screen from being squeezed, and the structure is compact, space-saving, and will not affect the relative movement of the first swing arm and the first support plate.

[0021] In some embodiments, 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, 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 supporting portion. Both the first limiting portion and the first supporting portion are surface structures. By setting the first limiting portion and the first supporting portion to be parallel to each other, the first shell and the second shell are relatively folded, and when the supporting base is subjected to an external impact force, the first limiting portion and the first supporting portion are in surface contact. The contact area between the first shell and the first support plate is large, which can increase the force balance between the first shell and the first support plate, and the pressures on the first shell and the first support plate are small, so the first shell and the first support plate are not easily damaged. In addition, the contact stability between the first shell and the first support plate is strong, which can also prevent the first shell and the first support plate from shaking relative to each other, 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 a folded state and the supporting base is subjected to an impact force, if the direction in which the first shell slides downward is parallel to the thickness direction of the supporting 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, and 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 can be reduced, and the reliability of the display screen can be improved.

[0024] In some embodiments, when the first shell and the second shell are folded relative to each other, the first limiting portion faces the second shell. The reference plane is parallel to the plane where 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 between 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 between 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] On the second aspect, when the foldable electronic device is in a folded state and the supporting 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 supporting 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 supporting force applied by the first abutting portion to the first limiting portion is inclined upward, and the supporting force can offset the impact force. 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.

[0026] In some embodiments, the angle b between the first limit portion and the reference surface satisfies the following condition: 0 degrees < b ≤ 45 degrees. On the one hand, the contact area between the first limit portion and the first abutting portion can be increased, thereby increasing the stability of the contact between the first shell and the first support plate. On the other hand, sufficient abutment force is provided between the first shell and the first support plate, thereby preventing the first shell from sliding relative to the first support plate.

[0027] In some embodiments, the second limiting portion is parallel to the second supporting portion. By setting the second limiting portion and the second supporting portion to be both surface structures, and the second limiting portion is parallel to the second supporting portion. When the first shell and the second shell are relatively folded and the supporting base is subjected to an external impact force, the second limiting portion and the second supporting portion are in surface contact, which can increase the force balance of the first support plate and the first swing arm, and the pressure on the first support plate and the first swing arm is relatively small, so the first support plate and the first swing arm are not easily damaged. In addition, the contact stability between the first support plate and the first swing arm is strong, and the relative shaking of the first support plate and the first swing arm can be prevented, thereby increasing the structural stability of the foldable electronic device.

[0028] In some embodiments, the second 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, and the second abutting portion is also parallel to the reference surface. When the foldable electronic device is in a folded state, the external impact force on the supporting base is parallel to the thickness direction of the supporting base, and the thickness direction of the first shell is perpendicular to the thickness direction of the supporting base. When the foldable electronic device is in a folded state and the supporting 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 supporting base. When the second limiting portion abuts against the second abutting portion, the impact force applied by the second abutting portion to the second limiting portion is vertically downward, and the supporting force generated by the second limiting portion on the second abutting portion is vertically upward. The supporting force and the impact force can be offset. In this way, the downward sliding trend of the first supporting plate can be quickly stopped, the risk of the third display screen being squeezed can be reduced, and the reliability of the display screen can be improved.

[0029] In some embodiments, when the first shell and the second shell are folded relative to each other, the second limit portion is inclined relative to the reference surface, and the second limit 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. That is, the second limit portion and the second abutting portion are both inclined downward. On the one hand, the contact area of ​​the second limit 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, so the force per unit area of ​​the first support plate and the first swing arm is reduced, and the risk of damage to the first support plate and the first swing arm is further reduced. On the other hand, when 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 first support plate slides downward is inclined relative to the thickness direction of the bearing base. Then, when the second limit portion and the second abutting portion abut, the impact force applied by the second abutting portion to the second limit portion is inclined downward, and the second limit portion generates a support force on the second abutting portion that is inclined upward, and the support force can offset the impact force. As a result, the downward sliding trend of the first support plate can be quickly stopped, the risk of the third display screen being squeezed can be reduced, and the reliability of the display screen can be improved.

[0030] In some embodiments, the angle a between the second limit portion and the reference surface satisfies the following condition: 0 degrees < a ≤ 45 degrees. On the one hand, the contact area between the second limit 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. On the other hand, sufficient abutment force is provided between the first support plate and the first swing arm, thereby preventing 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, which slides and rotates to connect the second swing arm and the second mounting block of the second housing, respectively. A portion of the third display portion is also 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 a folded state and the supporting base is subjected to an external impact force, the second housing will also move a large distance toward the supporting base, thereby causing the third display portion to be squeezed, and ultimately causing the entire display screen to fail. To this end, abutment structures may be provided between the second housing, the second support plate, and the second swing arm, with reference to the first housing, the first support plate, and the first swing arm.

[0032] Specifically, a third limiting portion is provided in the second mounting groove. A fourth limiting portion is provided in the second swing arm, and the fourth limiting portion extends into the second mounting groove. A third abutting portion and a fourth abutting portion are provided in the second support plate. When the first shell and the second shell are folded relative to each other, the third abutting portion is opposite to the third limiting portion, and the relative state includes a very small gap and direct contact. The fourth limiting portion is opposite to the fourth abutting portion, and the relative state includes a very small gap and direct contact.

[0033] When the first shell and the second shell are relatively folded and the bearing base is subjected to an external impact force, the second shell 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 shell, the second support plate, the second swing arm and the bearing base are fixed. That is, the second shell and the second support plate both stop sliding down. Therefore, the third display portion will not be squeezed, thereby preventing the third display portion from failing, and ultimately preventing the entire display screen from failing.

[0034] In some embodiments, the third limiting portion includes a groove side surface of the second mounting groove, and the third abutting portion includes a side surface of the second support plate. That is, the structure of the second mounting groove 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 prevent the display screen from being squeezed and simplify the structure of the foldable electronic device.

[0035] In some embodiments, a second sliding groove is provided in the second mounting groove, and the second swing arm slides and rotates to connect the second sliding groove; a third limiting portion is provided in the second sliding groove. The second support plate is located between the second swing arm and the bottom surface of the second sliding groove; the second support plate is provided with a third protrusion, the third protrusion passes through the second swing arm and extends into the second sliding groove; the third protrusion is provided with a third abutting portion. In addition, the contact area between the second shell and the second support plate can be increased, so that the force on the second shell and the second support plate is more balanced, so as to reduce the damage to the second shell 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 groove to prevent the display screen from being squeezed. It can save space and will not affect the relative movement of the second swing arm and the second shell.

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

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

[0038] In some embodiments, the second swing arm is provided with a second abutting groove, and a fourth position-limiting portion is provided in the second abutting groove; the second support plate is provided with a fourth protrusion, and at least a portion of the fourth protrusion extends into the second abutting groove; and the fourth protrusion is provided with a fourth abutting portion. The fourth position-limiting portion and the fourth abutting portion cooperate with each other inside the second abutting groove to prevent the display screen from being squeezed, and the structure is compact, space-saving, and will not affect the relative movement of the second swing arm and the second support plate.

[0039] In some embodiments, the fourth limiting portion includes the bottom surface of the second abutting groove, and the fourth abutting portion includes the end surface of the fourth protrusion, that is, the fourth limiting portion and the fourth abutting portion are both surface structures, which are simple in structure and easy to process.

[0040] In some embodiments, the third limiting portion is parallel to the third supporting portion. By setting the third limiting portion and the third supporting portion to be parallel to each other, the first shell and the second shell are relatively folded, and when the supporting base is subjected to an external impact force, the third limiting portion and the third supporting portion are in surface contact. The contact area between the second shell and the second support plate is large, which can increase the force balance of the second shell and the second support plate, and the pressure on the second shell and the second support plate is small, so the second shell and the second support plate are not easily damaged. In addition, the contact stability between the second shell and the second support plate is strong, and the relative shaking of the second shell and the second support plate can be prevented, thereby increasing the structural stability of the foldable electronic device.

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

[0042] In some embodiments, when the first shell and the second shell are folded relative to each other, the third limit portion is tilted downward relative to the reference surface. The third abutting portion is also tilted downward relative to the reference surface. In the first aspect, the contact area between the third limit 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, the force balance between 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] On the second aspect, when the foldable electronic device is in a folded state and the supporting 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 supporting base, then 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 supporting force applied by the third abutting portion to the third limiting portion is inclined upward, and the supporting force can offset the impact force. In this way, the downward sliding trend of the second shell can be quickly stopped, the risk of the third display screen being squeezed can be reduced, and the reliability of the display screen can be improved.

[0044] In some embodiments, the angle between the third limit portion and the thickness direction of the second shell is between 0 and 45 degrees. On the one hand, the contact area between the third limit portion and the third abutting portion can be increased, thereby increasing the stability of the contact between the second shell and the second support plate. On the other hand, sufficient abutment force is provided between the second shell and the second support plate, thereby preventing the second shell from sliding relative to the second support plate.

[0045] In some embodiments, the fourth limiting portion is parallel to the fourth supporting portion. By setting the fourth limiting portion and the fourth supporting portion to be both surface structures, and the fourth limiting portion is parallel to the fourth supporting portion. When the first shell and the second shell are relatively folded and the supporting base is subjected to an external impact force, the fourth limiting portion and the fourth supporting portion are in surface contact, which can increase the force balance of the second support plate and the second swing arm, and the pressure on the second support plate and the second swing arm is relatively small, so the second support plate and the second swing arm are not easily damaged. In addition, the contact stability between the second support plate and the second swing arm is strong, and the second support plate and the second swing arm can be prevented from shaking relative to each other, thereby increasing the structural stability of the foldable electronic device.

[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 supporting base is subjected to an impact force, the fourth limiting portion abuts against the fourth abutting portion, and the impact force applied to the fourth limiting portion by the fourth abutting portion is vertically downward, and the supporting force generated by the fourth limiting portion on the fourth abutting portion is vertically upward. The supporting force and the impact force can be offset. In this way, the tendency of the second support plate to slide downward can be quickly stopped, the risk of the third display screen being squeezed can be reduced, and the reliability of the display screen can be improved.

[0047] In some embodiments, when the first shell and the second shell are folded relative to each other, the fourth limiting portion is inclined downward relative to the reference surface. On the one hand, the contact area between the fourth limiting portion and the fourth abutting portion can be increased, so that the pressure on the second support plate and the second swing arm is reduced, so that the force per unit area of ​​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. On the other hand, when the foldable electronic device is in a folded state and the supporting base is subjected to an impact force, if the direction in which the second support plate slides downward is inclined relative to the thickness direction of the supporting base, when 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 inclined downward, and the support force generated by the fourth limiting portion on the fourth abutting portion is inclined upward, and the support force can offset the impact force. In this way, the tendency of the second support plate to slide downward can be quickly stopped, the risk of the third display screen being squeezed can be reduced, and the reliability of the display screen can be improved.

[0048] In some embodiments, the angle between the fourth limit portion and the thickness direction of the second housing is between 0 and 45 degrees. On the one hand, the contact area between the fourth limit portion and the fourth abutting portion can be increased, thereby increasing the stability of the contact between the second support plate and the second swing arm. On the other hand, sufficient abutment force is provided between the second support plate and the second swing arm, thereby preventing 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 cam, and the first concave cam is provided with a first concave-convex portion. The foldable electronic device further includes a first mounting shaft, a first limiter, a first main elastic member and a first sliding member. The first sliding member is provided with a first matching portion.

[0050] The first limiter is fixed to the first mounting shaft, the first main elastic member and the first sliding member are both slidably connected to the first mounting shaft, and the two ends of the first main elastic member abut against the first limiter and the first sliding member respectively. Along the axial direction of the first mounting shaft, the first limiter, the first main elastic member, the first sliding member, the first concave cam and the first rotating part are arranged in sequence. The first concave-convex part and the first matching part match each other. The protrusion of the first concave-convex part abuts against the protrusion of the first matching part, and the first main elastic member is in a compressed state. The protrusion of the first concave cam abuts against the concave part of the first matching part, and the first main elastic member is in a pre-compressed state. To provide a damping force for the first shell.

[0051] In some embodiments, the first swing arm further includes a second concave cam, and the second concave cam is provided with a second concave-convex portion. The foldable electronic device further includes a first pushing member and a first driving member, and the first pushing member and the first driving member are fixedly connected. The first pushing member is provided with a second matching portion. The second concave cam is rotatably connected to the first mounting shaft, and the first pushing member and the first driving member are both slidably connected to the first mounting shaft. Along the axial direction of the first mounting shaft, the first driving member is located between the first main elastic member and the first limit member, the second concave cam is located at an end of the first rotating part away from the first concave cam, and the first pushing member is located at a side of the second concave cam away from the first rotating part. The second concave-convex portion matches with the second matching portion. The first main elastic member is in a compressed state, and the protrusion of the second concave-convex portion abuts the protrusion of the second matching portion. The first main elastic member is in a pre-compressed state, and the protrusion of the second concave-convex portion abuts the concave portion of the second matching portion.

[0052] In some embodiments, the second swing arm is further provided with a third concave cam and a fourth concave cam, and the third concave cam is provided with a third concave-convex portion. The fourth concave cam is provided with a fourth concave-convex portion. The foldable electronic device also includes a second mounting shaft, a second limiter, a second main elastic member, a second sliding member, a second pushing member, and a second driving member. The second sliding member is provided with a third matching portion, and the second pushing member is provided with a fourth matching portion. The second pushing member and the second driving member are fixedly connected. The second rotating portion, the third concave cam, the fourth concave cam, the second mounting shaft, the second limiter, the second main elastic member, the second sliding member, the second pushing member, and the second driving member cooperate to provide a damping force for the second shell. The process of the second shell obtaining the damping force can refer to the first shell.

[0053] In some embodiments, the outer circumference of the first rotating part is provided with a first driving tooth, and the outer circumference of the second rotating part is provided with a second driving tooth. The first driving tooth and the second driving tooth are in transmission connection. The first driving tooth and the second driving tooth can be directly meshed, or indirectly meshed through a synchronous gear, so that the first shell and the second shell move synchronously. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 It is a structural schematic diagram of a foldable electronic device in a folded state provided by an embodiment of the present application.

[0055] Figure 2 It is a structural schematic diagram of a foldable electronic device in an unfolded state provided by an embodiment of the present application.

[0056] Figure 3 It is a schematic structural diagram of the main body of the foldable electronic device provided in an embodiment of the present application.

[0057] Figure 4 yes Figure 3 A schematic structural diagram of the first shell and the second shell of the main body is shown in FIG.

[0058] Figure 5yes Figure 3 Part of the schematic diagram of the split structure of the rotating mechanism shown in FIG.

[0059] Figure 6 yes Figure 5 Schematic diagram of the structure of the first swing arm of the rotating mechanism shown in .

[0060] Figure 7 yes Figure 5 Schematic diagram of the structure of the second swing arm of the rotating mechanism shown in .

[0061] Figure 8 yes Figure 5 A partial structural schematic diagram of another perspective of the first supporting plate of the rotating mechanism shown in FIG.

[0062] Fig. 9 yes Figure 5 A partial structural schematic diagram of another perspective of the second supporting plate of the rotating mechanism shown in FIG.

[0063] Fig.10 yes Figure 3 A schematic diagram of the BB-sectional structure of a foldable electronic device is shown in FIG.

[0064] Fig.11 yes Figure 3 Schematic diagram of the CC-sectional structure of the foldable electronic device shown in FIG.

[0065] Fig.12 yes Figure 3 DD-direction cross-sectional structural schematic diagram of the foldable electronic device shown in FIG.

[0066] Fig.13 yes Figure 3 Schematic diagram of the EE-direction cross-sectional structure of the foldable electronic device shown in FIG.

[0067] Fig.14 yes Figure 3 An enlarged schematic diagram of point A of the main body shown in FIG.

[0068] Fig.15 It is a schematic diagram of the local structure of the foldable electronic device provided in an embodiment of the present application when it is in a folded state.

[0069] Fig.16 It is a schematic diagram of a partial cross-sectional structure of a foldable electronic device provided in an embodiment of the present application when it is in a folded state.

[0070] Fig.17 yes Figure 1 Schematic diagram of the AA-sectional structure of the foldable electronic device shown in FIG.

[0071] Fig.18 yes Fig.17Schematic diagram of the structure of the foldable electronic device after being subjected to external impact force.

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

[0073] Fig. 20 It is a simplified structural schematic diagram of the first shell, the first support plate and the first swing arm when the foldable electronic device provided in an embodiment of the present application is in a folded state.

[0074] Fig.21 It is a simplified structural schematic diagram of the second shell, the second support plate and the second swing arm when the foldable electronic device provided by an embodiment of the present application is in a folded state.

[0075] Fig. 22 It is a simplified structural schematic diagram of a first support plate and a first swing arm when a foldable electronic device is in a folded state and subjected to an external impact force, provided by an embodiment of the present application.

[0076] Fig.23 This is another simplified structural schematic diagram of a first support plate and a first swing arm when the foldable electronic device is in a folded state and subjected to an external impact force, provided by an embodiment of the present application.

[0077] Fig.24 It is a simplified structural schematic diagram of a first support plate and a first shell when a foldable electronic device is in a folded state and subjected to an external impact force, provided by an embodiment of the present application.

[0078] Fig.25 This is another simplified structural schematic diagram of a first support plate and a first shell when the foldable electronic device is in a folded state and subjected to an external impact force, provided by an embodiment of the present application.

[0079] Fig.26 It is a schematic diagram of the cross-sectional structure of a foldable electronic device in a folded state provided by another embodiment of the present application.

[0080] Fig. 27 yes Figure 5 Schematic diagram of the partial structure of the rotating mechanism shown in.

[0081] Description of Reference Numerals

[0082] 1000-foldable electronic device, 1200-main body, 100-rotation mechanism, 10-first swing arm, 11-first rotating part, 111-first concave cam, 112-second concave cam, 113-first driving 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 slider, 10a-second swing arm, 11a-second rotating part, 111a-third concave cam, 112a-fourth concave cam, 113a-second driving tooth, 12a-second sliding part, 13a-second abutting groove, 131a-second groove bottom surface, 14a-second guide slider, 20-first support plate, 2 1-third supporting surface, 22-first setting surface, 23-first side surface, 24-second side surface, 201-first convex portion, 25-first protrusion, 251-first guide groove, 252-first end surface, 26-first avoidance groove, 27-first connecting block, 271-first sliding hole, 28-first arc block, 281-first arc groove, 29-second protrusion, 291-second end surface, 20a-second supporting plate, 21a-fourth supporting surface, 22a-second setting surface, 23a-third side surface, 24a-fourth side surface, 201a-second convex portion, 25a-third protrusion, 251a-second guide groove, 252a-third end surface, 26a-second avoidance groove, 27a-second connecting block, 271a-second sliding hole , 28a-second arc block, 281a-second arc groove, 29a-fourth protrusion, 291a-fourth end face, 30-third support plate, 31-fifth support surface, 32-third setting surface, 40-bearing base, 41-first mounting axis, 42-second mounting axis, 50-first main swing arm, 51-first sliding axis, 50a-second main swing arm, 51a-second sliding axis, 60-first limiting member, 61-second limiting member, 62-first main elastic member, 63-second main elastic member, 64-first sliding member, 65-second sliding member, 66-first pushing member, 67-second pushing member, 68-first driving member, 69-second driving member, 70-first connecting member, 71-second connecting member, 72-third connecting member , 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-auxiliary elastic member, 200-first shell, 210-first middle frame, 211-first bearing member, 212-first bearing plate, 213-second bearing plate, 214-first mounting groove, 215-first groove side, 220-first middle plate, 221-first supporting surface, 230-first mounting block, 231-first sliding groove, 232-first limiting groove, 233-first rotating groove, 234-first slider, 240-second groove side, 300-second shell, 310-second middle frame, 311-second bearing member, 312-third bearing plate,313-fourth bearing plate, 314-second mounting groove, 315-third groove side, 320-second middle plate, 321-second supporting 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 part, 500-second limiting part, 400a-third limiting part, 500a-fourth limiting part, 600-first holding part, 700-second holding part, 600a-third holding part, 700a-fourth holding part, 1300-display screen, 1310-first display part, 1320-second display part, 1330-third display part, M-reference surface. , DETAILED DESCRIPTION

[0083] The embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application.

[0084] See also Figure 1 and Figure 2 , Figure 1 It is a structural schematic diagram of the foldable electronic device 1000 provided in an embodiment of the present application in a folded state. Figure 2 It is a structural schematic diagram of the foldable electronic device 1000 provided in an embodiment of the present application in an unfolded state.

[0085] Figure 1 The folding angle of the foldable electronic device 1000 shown in FIG. 1 is 0 degrees. Figure 2 The unfolding angle of the foldable electronic device 1000 is 180 degrees. The foldable electronic device 1000 includes, but is not limited to, a cell phone, a notebook computer, a tablet personal computer, a personal digital assistant, a wearable device, or a mobile device. In the embodiment of the present application, the foldable electronic device 1000 is an inner-folding mobile phone as an example for explanation. The inner-folding mobile phone is a mobile phone in which the display screen 1300 is located inside after folding.

[0086] It should be noted that the angles illustrated in the embodiments of the present application are allowed to have slight deviations. Figure 1 The folding angle of the foldable electronic device 1000 shown in FIG. 1 is 0 degrees, and the deviation can be ±5 degrees. Figure 2 The unfolding angle of the foldable electronic device 1000 shown may have a deviation of ±5 degrees from 180 degrees.

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

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

[0089] Please refer to Figure 3 , Figure 3 1 is a schematic diagram of the structure of the main body 1200 of the foldable electronic device 1000 provided in an embodiment 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 installed on the first shell 200 and the second shell 300 to realize the rotation connection between the first shell 200 and the second shell 300. The first shell 200 and the second shell 300 can rotate relative to each other through the rotating mechanism 100, so that the main body 1200 can switch between the folded state and the unfolded state.

[0090] The display screen 1300 is mounted on the main body 1200, and the mounting surface is fixedly connected to the main body 1200. Specifically, the first display portion 1310 is fixedly mounted on the first housing 200, and the second display portion 1320 is fixedly mounted on the second housing 300. The rotating mechanism 100 is arranged opposite to the third display portion 1330 to achieve the bending of the display screen 1300. The third display portion 1330 is not fixed to the rotating mechanism 100. The side of the first housing 200 and the second housing 300 facing 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, reference Figure 4 , Figure 4 yes Figure 3Schematic diagram of the structure of the first shell 200 and the second shell 300 of the main body 1200 shown in the figure. The first shell 200 is provided with a first mounting groove 214. Specifically, the first shell 200 includes a first middle frame 210, a first back plate (not shown), 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 the opposite 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), and the first accommodating cavity is used to install components such as circuit boards and batteries. The surface of the first middle plate 220 away from the first accommodating cavity is a first supporting surface 221, and the first supporting surface 221 is used to support the first display unit 1310. The first display unit 1310 is stacked and fixed to the first supporting surface 221.

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

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

[0094] Continue to refer Figure 4The second shell 300 has the same structure as the first shell 200, and the second shell 300 is provided with a second mounting groove 314. Specifically, the second shell 300 includes a second middle frame 310, a second back plate (not shown), 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 the two opposite 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), and the second accommodating cavity is used to install components such as circuit boards and batteries. The surface of the second middle plate 320 away from the second accommodating cavity is a second supporting surface 321, and the second supporting surface 321 is used to support the second display unit 1320. The second display unit 1320 is stacked and fixed to the second supporting surface 321.

[0095] A second bearing member 311 is provided on the side of the second middle frame 310 facing the first shell 200. The second bearing member 311 includes a third bearing plate 312 and a fourth bearing plate 313, the second bearing plate 213 and the second bearing plate 213 are connected in an L shape, and the second bearing plate 213 and the second bearing plate 213 enclose a second mounting groove 314. The second mounting groove 314 includes a third groove side 315, the third groove side 315 is parallel to the Z-axis direction, and the third groove side 315 is a third limiting portion 400a. The second mounting block 330 can be a wedge 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 slider 334, and the second sliding groove 331, the second rotating groove 333 and the second slider 334 are all used to connect with the rotating mechanism 100. A second limiting groove 332 is disposed in the second sliding groove 331 . The second limiting groove 332 includes a fourth groove side surface 340 (not shown). The fourth groove side surface 340 is parallel to the Z-axis direction and is a third limiting portion 400 a .

[0096] In some embodiments, reference Figure 5 , Figure 5 yes Figure 3 1 is a part of the schematic diagram of the split structure of the rotating mechanism 100. 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, reference Figure 6 , Figure 6 yes Figure 5The first swing arm 10 of the rotating mechanism 100 is shown in FIG. The first swing arm 10 includes a first rotating portion 11 and a first sliding portion 12 that are fixedly connected. The first sliding portion 12 includes a first sliding surface 121, a second sliding surface 122, and a first sliding end surface 123. Along the thickness direction of the first swing arm 10, the first sliding surface 121 and the second sliding surface 122 are arranged opposite to each other. 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 portion 12 that is away from the first rotating portion 11.

[0098] The first sliding portion 12 is provided with a first abutting groove 13. The first abutting groove 13 passes through the first sliding surface 121, the second sliding surface 122 and the first sliding end surface 123. The first abutting groove 13 includes a first groove bottom surface 131, and the first groove bottom surface 131 is parallel to the first sliding end surface 123. The first sliding surface 121 is convexly provided with a first guide slider 14, and the first guide slider 14 is used to connect with the first support plate 20. The first groove bottom surface 131 is a second limiting portion 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 portion 500 includes the inner wall surface of the first abutting groove 13.

[0099] refer to Figure 7 , Figure 7 yes Figure 5 The schematic diagram of the structure of the second swing arm 10a of the rotating mechanism 100 is shown in the figure. The second swing arm 10a has the same structure as the first swing arm 10, and the second swing arm 10a includes a second rotating portion 11a and a second sliding portion 12a. The second sliding portion 12a includes a third sliding surface, a fourth sliding surface, and a second sliding end surface. The second sliding portion 12a is provided with a second abutting groove, and the second abutting groove 13a includes a second groove bottom surface 131a, and the second groove bottom surface 131a is parallel to the second sliding end surface, and the second groove bottom surface 131a is a fourth limiting portion 500a. The third sliding surface is convexly provided with a second guide slider 14a, and the second guide slider 14a is used to connect with the second support plate 20a.

[0100] refer to Figure 5 and Figure 8 , Figure 8 yes Figure 5Schematic diagram of the partial structure of the first support plate 20 of the rotating mechanism 100 from another perspective. 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 the third support surface 21 and one side of the first setting surface 22, and the second side surface 24 is connected between the third support surface 21 and the other side of 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 avoidance groove 26, a first connecting block 27, a first arc block 28 and a first protrusion 201. The first protrusion 201 is provided with a first guide groove 251. The first guide groove 251 is used to connect with the first guide slider 14 of the first swing arm 10. The first connecting block 27, the first avoidance groove 26 and the first arc block 28 are arranged in sequence along the Y-axis direction. The first connecting block 27 is convexly provided on the first setting surface 22. The first connecting block 27 is provided with a first sliding hole 271. The first sliding hole 271 is used to connect with the first main swing arm 50. The first avoidance groove 26 is concavely provided on the first setting surface 22.

[0102] The first protrusion 201 includes a first protrusion 25 and a second protrusion 29. There are two first guide grooves 251, one of which is located at the first protrusion 25, and a part of the other first guide groove 251 (not shown) is located at the first protrusion 25, and the other part is located at the second protrusion 29. The first protrusion 25 and the second protrusion 29 are both convexly arranged on the bottom surface of the first avoidance groove 26, and the second protrusion 29 is basically flush with the first setting surface 22. The first protrusion 25 extends out of the first avoidance groove 26, that is, the first protrusion 25 is higher than the first setting surface 22. The first protrusion 25 and the second protrusion 29 are arranged and fixedly connected along the X-axis direction, that is, the first protrusion and the second protrusion 29 are integrally formed, which can be easily processed. In other embodiments, the first protrusion 25 and the second protrusion 29 can also be arranged in a staggered manner along the X-axis direction. The first arc block 28 is provided with a first arc groove 281, and the first arc groove 281 is used to connect with the first slider 234 of the first mounting block. The first protrusion 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 squeezed, and can also realize the sliding and rotation connection between the first support plate 20 and the first swing arm 10. The number of parts of the rotation mechanism is reduced, which is conducive to the lightweight 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 to each other along the X-axis direction. An end of the first protrusion 25 that is away from the first end surface 252 and an end of the second protrusion 29 that is away from the second end surface 291 are fixedly connected. The first end surface 252 is a first abutting portion 600, and the first end surface 252 is a part of the 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, and the second end surface 291 is a part of the 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 Fig. 9 , Fig. 9 yes Figure 5 Schematic diagram of the partial structure of the second support plate 20a of the rotating mechanism 100 from another perspective. 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, and the third side surface 23a is a third abutting portion 600a. The fourth support surface 21a and the second setting surface 22a are opposite to each other along the Z-axis direction, and the third side surface 23a and the fourth side surface 24a are opposite to each other 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 avoidance groove 26a, a second arc block 28a and a second convex portion 201a. The second convex portion 201a is provided with a second guide slide groove 251a, and the second guide slide groove 251a is used to connect with the second guide slider 14a of the second swing arm. The second connecting block 27a is provided with a second slide hole 271a, and the second slide hole 271a is used to connect with the second main swing arm 50a. The second arc block 28a is provided with a second arc groove 281a, and the second arc groove 281a is used to connect with the second sliding block 334 of the second mounting block.

[0105] The second protrusion 201a includes a third protrusion 25a and a fourth protrusion 29a. There are two second guide slots 251a, one of which is located at the third protrusion 25a, and a part of the other second guide slot 251a (not shown) is located at the third protrusion 25a, and the other part is located at the fourth protrusion 29a. The third protrusion 25a includes a third end face 252a, and the fourth protrusion 29a includes a fourth end face 291a, and the third end face 252a and the fourth end face 291a are opposite to each other along the X-axis direction. One end of the third protrusion 25a away from the third end face 252a and one end of the fourth protrusion 29a away from the fourth end face 291a are fixedly connected. The third end face 252a is the third abutting portion 600a, and the fourth end face 291a is the fourth abutting portion 700a.

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

[0107] In some embodiments, reference Fig.10 , Fig.10 yes Figure 3 The BB-direction cross-sectional structural diagram of the foldable electronic device 1000 is shown in FIG. The bearing base 40 is arranged between the first shell 200 and the second shell 300. The opposite sides of the first main swing arm 50 are respectively connected to the first shell 200 and the bearing base 40, and the opposite sides of the second main swing arm 50a are respectively connected to the second shell 300 and the bearing base 40. Specifically, one side of the first main swing arm 50 can be rotatably connected to the first rotation groove 233 of the first mounting block 230 through a rotating shaft. The other side of the first main swing arm 50 can be slidably and rotatably connected to the bearing base 40 through a sliding groove. One side of the second main swing arm 50a can be rotatably connected to the second rotation groove 333 of the second mounting block 330 through a rotating shaft, and the other side of the second main swing arm 50a can be rotatably connected to the bearing base 40 through a sliding groove.

[0108] refer to Fig.11 , Fig.11 yes Figure 3 The CC-section structural schematic diagram of the foldable electronic device 1000 is shown in the figure. The opposite sides of the first swing arm 10 are respectively connected to the first shell 200 and the bearing base 40, and the opposite sides of the second swing arm 10a are respectively connected to the second shell 300 and the bearing base 40. Specifically, the bearing base 40 is provided with a first mounting axis 41 and a second mounting axis 42, and the axial directions of the first mounting axis 41 and the second mounting axis 42 are both parallel to the Y-axis direction, and the first mounting axis 41 and the second mounting axis 42 are arranged at intervals along the X-axis direction. The first rotating portion 11 is rotatably connected to the bearing base 40 through the first mounting axis 41, and the first sliding portion 12 is slidably and rotatably connected to the first sliding groove 231. The second rotating portion 11a is rotatably connected to the bearing base 40 through the second mounting axis 42, and the second sliding portion 12a is slidably and rotatably connected to the second sliding groove 331.

[0109] refer to Fig.10 , one side of the first support plate 20 is slidably and rotatably connected to the first main swing arm 50 and the first swing arm 10, and one side of the second support plate 20a is slidably and rotatably connected to the second main swing arm 50a and the second swing arm 10a. 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] Reference Fig.12,refer to Fig.12 , Fig.12 yes Figure 3 The DD-direction cross-sectional structure diagram of the foldable electronic device 1000 is shown in FIG. The first guide slider 14 of the first swing arm 10 extends into the first guide slot 251 of the first protrusion, and the first guide slider 14 can slide in the first guide slot 251. The second guide slider 14a of the second swing arm 10a extends into the second guide slot 251a of the third protrusion, and the second guide slider 14a can slide in the second guide slot 251a.

[0111] refer to Fig.13 , Fig.13 yes Figure 3 EE-direction cross-sectional structural diagram of the foldable electronic device 1000 is shown in FIG. The other side of the first support plate 20 is slidably and rotatably connected to the first housing 200, and the other side of the second support plate 20a is slidably and rotatably connected to the second housing 300. Specifically, the first slider 234 of the first mounting block 230 extends into the first arc groove 281 of the first arc block 28, and the first slider 234 can slide in the first arc groove 281. The second slider 334 of the second mounting block 330 extends into the second arc groove 281a of the second arc block 28a, and the second slider 334 can slide in the second arc groove 281a.

[0112] The third support plate 30 is fixedly connected to the bearing base 40, and the third setting 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 blocks a part of the first main swing arm 50 and a part of the first swing arm 10, and the second support plate 20a blocks a part of the second main swing arm 50a and a part of the second swing arm 10a. The third support plate 30 blocks 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 be a swing arm group, and the number of the 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 at intervals along the Y-axis direction. A first mounting block 230 and a second mounting block 330 are 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 are respectively connected to the three connection groups. In other embodiments, the number of swing arm groups and connection groups can also be one, two, four, etc., which is not limited by the present application. In other embodiments, the first main swing arm 50 and the second main swing arm 50a are the first swing arm group, the first swing arm 10 and the second swing arm 10a are the second swing arm group, and the number of the first swing arm group and the second swing arm group may 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, which is described in detail below.

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

[0116] refer to Fig.14 , Fig.14 yes Figure 3 The enlarged schematic diagram of the main body 1200 at A is shown in the figure. The foldable electronic device 1000 is in an unfolded state, and the first shell 200 and the second shell 300 are relatively unfolded, that is, the first shell 200 and the second shell 300 are arranged in sequence along the X-axis direction. The first mounting groove 214 and the second mounting groove 314 are connected to form a receiving groove, and the bearing base 40 is completely located in the receiving 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 portion 1310 is bonded and fixed to the first support surface 221, and the second display portion 1320 is bonded and fixed to the second support surface 321. The third display portion 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 remain flat.

[0117] During 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, the first main swing arm 50 slides and rotates relative to the bearing base 40, and 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, the second main swing arm 50a slides and rotates relative to the bearing base 40, and 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 that the first shell 200 and the second shell 300 are switched to the folded state.

[0118] During the movement of the first housing 200, the first swing arm 10 and the first main swing arm 50, the first guide slider 14 of the first swing arm 10 slides in the first guide slot 251 of the first support plate 20, the first slide shaft 51 of the first main swing arm 50 slides in the first slide hole 271 of the first support plate 20, and the first slider 234 of the first housing 200 slides in the first arc slot 281 of the first support plate. This makes the first support plate 20 slide and rotate relative to the first housing 200, the first support plate 20 slide and rotate relative to the first main swing arm 50, and the first support plate 20 slide and rotate relative to the first swing arm 10. During the movement of the second housing 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 housing 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] refer to Fig.15 and Fig.16 , Fig.15 It is a schematic diagram of the local structure of the foldable electronic device 1000 provided in an embodiment of the present application when it is in a folded state. Fig.161 is a schematic diagram of a partial cross-sectional structure of a foldable electronic device 1000 provided in an embodiment of the present application when in a folded state. When the foldable electronic device 1000 is in a 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 bottom surface of the first sliding groove 231, and a portion of the first swing arm 10 extends into the first avoidance groove 26, making the structure of the rotating mechanism 100 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 portions 400, and the first side surface 23 and the first end surface 252 are both first abutting portions 600, that is, the two first limiting portions 400 are respectively opposite to the first abutting portions 600. The first abutting portion 600 and the first limiting portion 400 can be understood as having a gap therebetween, or directly contacting each other. However, usually, due to processing and assembly reasons, there is a gap h1 between the first abutting portion 600 and the first limiting portion 400.

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

[0121] refer to Fig.17 , Fig.17 yes Figure 1AA cross-sectional structural diagram of the foldable electronic device 1000 is shown in FIG. When the foldable electronic device 1000 is in a folded state, the first shell 200 and the second shell 300 are folded relative to each other, that is, the first shell 200 and the second shell 300 are stacked along the Z-axis direction, and the side of the supporting base 40 away from the display screen 1300 is exposed, 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 to 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 to 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 drop-shaped screen space.

[0122] The display screen is mounted on the general support surface, so the display screen 1300 is also located inside the foldable electronic device 1000 and is bent into a teardrop shape. Specifically, the first display portion 1310 and the second display portion 1320 are opposite to each other, and the third display portion 1330 is located in the teardrop-shaped screen space, and the third display portion 1330 is bent into a teardrop shape. Of course, the third display portion 1330 can also be bent into other shapes.

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

[0124] refer to Fig.18 , Fig.18 yes Fig.17 Schematic diagram of the structure of the foldable electronic device after being subjected to external impact force. When the supporting base 40 is subjected to external impact force, the first swing arm 10 is supported by the first mounting shaft 41, and the first swing arm 10 will not slide downward. However, the first shell 200 slides and rotates to connect the first swing arm 10, and the first support plate 20 slides and rotates to connect the first shell 200 and the first swing arm 10, so the first shell 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 shell 200 slides downward, the first abutting portion 600 abuts against the first limiting portion 400.

[0125] After the first abutting portion 600 abuts against the first limiting portion 400, the relative positions of the first housing 200, the first support plate 20, the first swing arm 10 and the bearing base 40 are fixed. That is, the first housing 200 and the first support plate 20 both stop sliding down. The distance that the first support plate 20 slides downward is equal to the width of the gap h1, and the distance that the first housing 200 slides downward is 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 portion 1330 will not be squeezed, thereby preventing the third display portion 1330 from failing, and ultimately preventing the entire display screen 1300 from failing.

[0126] When the bearing base 40 is subjected to external impact force, the second abutting portion 700 first contacts the second limiting portion 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 portion 400 contacts the first abutting portion 600. Because the bearing base 40, the first swing arm 10 and the first support plate 20 have already formed an integral state, when the first shell 200 moves downward, the impact force can be instantly transmitted from the first support plate 20 to the bearing base 40 through the first swing arm 10, thereby stopping the first shell 200 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, thereby causing the impact force of the first shell 200 to act entirely on the first support plate 20, thereby preventing the first support plate 20 from being damaged.

[0127] Of course, it is understandable that if the first shell 200 and the second shell 300 are folded relative to each other, and the bearing base 40 is not subjected to external impact force, the second abutting portion 700 has been in contact with the second limiting portion 500, and the first abutting portion 600 has been in contact with the first limiting portion 400. After the bearing base 40 is subjected to external impact force, the first shell 200 and the first support plate 20 will have a tendency to move downward, at which time the second abutting portion 700 and the second limiting portion 500 will abut against each other to generate a holding force, and the first limiting portion 400 and the first abutting portion 600 will abut against each other to generate a holding force. As a result, the first shell 200 and the first support plate 20 cannot move downward.

[0128] Similarly, when the foldable electronic device 1000 is in the folded state, the third protrusion 25a passes through the second abutting groove 13a and extends into the second limiting groove 332. 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 portion 400a, the third side surface 23a and the third end surface 252a are both the third abutting portion 600a, and the third limiting portion 400a and the third abutting portion 600a are opposite. A portion of the second swing arm 10a is located in the second avoidance 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 portion 500a, and the fourth end surface 291a is the fourth abutting portion 700a. That is, the fourth limiting portion 500a and the fourth resisting portion 700a are opposite to each other.

[0129] The matching relationship and working principle of the fourth limiting portion 500a, the fourth abutting portion 700a, the third limiting portion 400a and the third abutting portion 600a refer to the second limiting portion 500, the second abutting portion 700, the first limiting portion 400 and the first abutting portion 600. Thus, when the first shell 200 and the second shell 300 are relatively folded and the supporting base 40 is subjected to an external impact force, the second shell 300 and the second supporting plate 20a move downward very little or even do not move, which can prevent the third display portion 1330 from being squeezed and avoid failure of the display screen 1300.

[0130] In this embodiment, the groove side of the first mounting groove 214 and the side of the first support plate 20 are used as a set of first limiting parts 400 and first abutting parts 600, which has a simple structure and can prevent the display screen 1300 from being squeezed. Another set of first limiting parts 400 and first abutting parts 600 are formed by using the end surface of the first protrusion 25 and the groove side of the first limiting groove 232, which can save space and will not affect the relative movement of the first swing arm 10 and the first housing 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 easy to process.

[0131] In addition, two first limiting portions 400 are provided to be opposite to the two first abutting portions 600, respectively, so that the contact area between the first support plate 20 and the first shell 200 is larger, the force balance between the first support plate 20 and the first shell 200 is increased, and the damage to the first support plate 20 and the first shell 200 can be reduced. Similarly, in this embodiment, two third limiting portions 400a and two third abutting portions 600a are provided to be opposite to each other, so that the contact area between the second support plate 20a and the second shell 300 is larger, the force balance between the second support plate 20a and the second shell 300 is increased, and the damage to the second support plate 20a and the second shell 300 can be reduced.

[0132] In the related art, reference Fig.19 , Fig.19 It is a state change diagram of the foldable electronic device 1000 in the related art when it is in a folded state and subjected to external impact force. Fig.19 Figure (a) shows the state of the foldable electronic device 1000 before it is subjected to an impact force. Fig.19 Figure (b) shows the state of the foldable electronic device 1000 after being subjected to an impact force. When the foldable electronic device 1000 is in a folded state, if the foldable electronic device 1000 accidentally falls and the supporting base 40 is in the impact position, the supporting base 40 will be subjected to an impact force, and under the action of the impact force, the first swing arm 10 will slide relative to the first shell 200. The second swing arm 10a will slide relative to the second shell 300. At this time, the first shell 200 and the second shell 300 both move in a direction close to the supporting base 40, the first display part 1310 is fixedly connected to the first shell 200, and the second display part 1320 is fixedly connected to the second shell 300, so the first display part 1310 and the second display part 1320 also move in a direction close to the supporting base 40, and the third display part 1330 will be squeezed. This causes the third display part 1330 to fail, and then 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 position limiting portion 500. When the first housing 200 slides downward, the first abutting portion 600 abuts against the first position limiting portion 400. This allows the first housing 200 and the first support plate 20 to slide downward only a very small distance, or even not slide downward. Similarly, the second housing 300 and the second support plate 20a move downward very little or even not at all, which can prevent the third display portion 1330 from being squeezed and avoid failure of the display screen 1300.

[0134] In some embodiments, reference Fig. 20 , Fig. 20It is a simplified structural diagram of the first shell 200, the first support plate 20 and the first swing arm 10 when the foldable electronic device 1000 provided in an embodiment of the present application is in a 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, and the parallelism here includes processing and assembly errors. According to the relationship between pressure and force: F=P*S, F is the magnitude of the force, P is the pressure, and S is the force-bearing area. When F remains unchanged, the larger S is, the smaller P is, and conversely, the smaller S is, the larger P is. The larger P is, the greater the force per unit area of ​​the object is, and the easier it is for the object to be damaged.

[0135] By setting the second limiting part 500 and the second holding part 700 to be both surface structures, and the second limiting part 500 is parallel to the second holding part 700. The first shell 200 and the second shell 300 are relatively folded, and when the bearing base 40 is subjected to an external impact force, the second limiting part 500 and the second holding part 700 are in surface contact. According to the relationship between the above pressure and force, when the impact force remains unchanged, the contact area between the first support plate 20 and the first swing arm 10 is larger, which can increase the force balance of the first support plate 20 and the first swing arm 10, and the pressure on the first support plate 20 and the first swing arm 10 is relatively small, so the first support plate 20 and the first swing arm 10 are not easily damaged. In addition, the contact stability between the first support plate 20 and the first swing arm 10 is strong, and the relative shaking of the first support plate 20 and the first swing arm 10 can be prevented, thereby increasing the structural stability of the foldable electronic device 1000.

[0136] In some other embodiments, the second position-limiting portion 500 and the second abutting portion 700 are configured as a point contact structure. Specifically, the second position-limiting portion 500 includes a first hemispherical protrusion (not shown), and the second abutting portion 700 includes a second hemispherical 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 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 to a line contact structure. Specifically, the second limiting portion 500 includes a first arc-shaped protrusion (not shown), and the second abutting portion 700 may 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.

[0138] In some embodiments, continue to refer to Fig. 20, the first limiting portion 400 and the first abutting portion 600 are both surface structures, and the two are parallel, and the parallelism here includes processing and assembly errors. When the first shell 200 and the second shell 300 are relatively folded, and the bearing base 40 is subjected to external impact force, the first limiting portion 400 and the first abutting portion 600 are in surface contact. According to the relationship between the above pressure and force, when the impact force remains unchanged, the contact area 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 relatively small, and the first shell 200 and the first support plate 20 are not easily damaged. In addition, the contact stability of the first shell 200 and the first support plate 20 is strong, and the relative shaking of the first shell 200 and the first support plate 20 can be prevented, thereby increasing the structural stability of the foldable electronic device 1000.

[0139] In some other embodiments, the first position-limiting portion 400 and the first abutting portion 600 are configured as a point contact structure. Specifically, the first position-limiting portion 400 includes a first hemispherical convex portion (not shown), and the first abutting portion 600 includes a second hemispherical convex portion (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 hemispherical convex portion and the second hemispherical convex portion are in point contact.

[0140] In some other embodiments, the first position limiting portion 400 and the first abutting portion 600 are set to a line contact structure. Specifically, the first position limiting portion 400 includes a first arcuate convex portion (not shown), and the first abutting portion 600 may include a second arcuate convex portion (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 arcuate convex portion and the second arcuate convex portion are in line contact.

[0141] Similarly, reference Fig.21 , Fig.21 It is a simplified structural schematic diagram of the second housing 300, the second support plate 20a and the second swing arm 10a when the foldable electronic device 1000 provided by the embodiment of the present application is in a folded state. The fourth limiting portion 500a and the fourth abutting portion 700a are both surface structures and are parallel. Therefore, when the impact force remains unchanged, the contact area of ​​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 relatively small, and the second support plate 20a and the second swing arm 10a are not easily damaged. In addition, the second support plate 20a and the second swing arm 10a have strong contact stability, which can also prevent the second support plate 20a and the second swing arm 10a from shaking relative to each other, 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, and the parallelism here includes processing and assembly errors. When the impact force remains unchanged, the contact area between the second shell 300 and the second support plate 20a is larger, which can increase the force balance between the second shell 300 and the second support plate 20a, and the pressure on the second shell 300 and the second support plate 20a is smaller, so the second shell 300 and the second support plate 20a are not easily damaged. In addition, the contact stability between the second shell 300 and the second support plate 20a is strong, and the second shell 300 and the second support plate 20a can also be prevented from shaking relative to each other.

[0143] In some embodiments, reference Fig. 22 , Fig. 22 It 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 provided by an embodiment of the present application. The second limiting portion 500 is parallel to the reference plane M. The second abutting portion 700 is also parallel to the reference plane M. The reference plane M is parallel to the plane where 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 supporting base 40 is subjected to an impact force, if the direction in which the first support plate 20 slides downward is parallel to the thickness direction of the supporting base 40. Then, when the second limiting portion 500 abuts against the second abutting portion 700, the impact force F applied to the second limiting portion 500 by the second abutting portion 700 is vertically downward.

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

[0146] In some embodiments, reference Fig.23 , Fig.23This is another 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 provided by an embodiment of the present application. When the foldable electronic device 1000 is in a folded state, that is, when the first shell 200 and the second shell 300 are folded relative to each other, the second limit portion 500 is inclined relative to the reference plane M, and the second limit portion 500 is oriented toward the second shell 300. That is, the second limit portion 500 is inclined downward relative to the reference plane M, and the second abutting portion 700 is also inclined downward relative to the reference plane M. The inclined downward here means that Fig.23 With the direction in the figure as a reference, with the positive direction of the Z axis as "right", the negative direction of the Z axis as "left", the positive direction of the X axis as "up", and the negative direction of the X axis as "down", the second limit portion 500 is inclined from the upper left direction to the lower right direction. On the first aspect, the contact area between the second limit portion 500 and the second abutting portion 700 can be increased. According to the above relationship between pressure and force, the contact area between the first support plate 20 and the first swing arm 10 is increased. When the impact force remains unchanged, the pressure on the first support plate 20 and the first swing arm 10 is reduced. Therefore, the force per unit area on 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 a folded state and the supporting base 40 is subjected to an impact force, if the direction in which the first supporting plate 20 slides downward is inclined relative to the thickness direction of the supporting 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 inclined downward.

[0148] By setting the second limiter 500 and the second abutting portion 700 to be inclined downward, the second limiter 500 generates a supporting force F0 on the second abutting portion 700, the supporting force F0 is inclined upward, the supporting force F0 and the impact force F are in opposite directions, and the supporting 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 squeezed is reduced, and the reliability of the display screen 1300 is improved.

[0149] Similarly, when the foldable electronic device 1000 is in a folded state, that is, when the first shell 200 and the second shell 300 are relatively folded, the fourth limit portion 500a is inclined relative to the reference plane M, and the fourth limit portion 500a faces the first shell 200. That is, the fourth limit portion 500a is inclined downward, and the fourth abutting portion 700a is also inclined downward relative to the reference plane M. On the one hand, the contact area between the second support plate 20a and the second swing arm 10a is increased. When the impact force remains unchanged, the pressure on the second support plate 20a and the second swing arm 10a is reduced. Therefore, the force per unit area of ​​the second support plate 20a and the second swing arm 10a is reduced, further reducing the risk of damage to the second support plate 20a and the second swing arm 10a. On the other hand, the tendency of the second support plate 20a to slide downward can be quickly stopped, reducing the risk of the third display screen 1300 being squeezed, and improving the reliability of the display screen 1300.

[0150] In some embodiments, continue to refer to Fig.23 , the 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°, etc. It can be understood that the second limiting portion 500 and the second abutting portion 700 are parallel, so the second abutting portion 700 and the second limiting portion 500 have the same inclination direction and inclination angle.

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

[0152] By setting the inclination angle a of the second position-limiting portion 500 to be between 0 and 45 degrees, the contact area between the second position-limiting portion 500 and the second abutting portion 700 can be increased, thereby increasing the contact stability between the first support plate 20 and the first swing arm 10. Second, sufficient abutment force is provided between the first support plate 20 and the first swing arm 10, thereby preventing 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 and 45 degrees, the contact area between the fourth limiting portion 500a and the fourth abutting portion 700a can be increased, thereby increasing the contact stability between the second support plate 20a and the second swing arm 10a. On the other hand, sufficient abutment force is provided between the second support plate 20a and the second swing arm 10a, thereby preventing the second support plate 20a from sliding relative to the second swing arm 10a.

[0154] In some embodiments, reference Fig.24 , Fig.24 The embodiment of the present application provides a simplified structural schematic diagram of the first support plate 20 and the first shell 200 when the foldable electronic device 1000 is in a folded state and subjected to an external impact force. The first limit portion 400 is parallel to the reference plane M. The first abutment portion 600 is also parallel to the reference plane M. When the foldable electronic device 1000 is in a folded state and the bearing base 40 is subjected to an impact force, if the direction in which the first shell 200 slides downward is parallel to the thickness direction of the bearing base 40, the impact force FA generated by the first limit portion 400 on the first abutment portion 600 is vertically downward, and the support force FA0 applied by the first abutment portion 600 to the first limit portion 400 is vertically upward. The support force FA0 and the impact force FA can offset each other. As a result, the downward sliding trend of the first shell 200 can be quickly stopped, the risk of the third display screen 1300 being squeezed is reduced, and the reliability of the display screen 1300 is 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. Thus, the downward sliding trend of the second housing 300 can be quickly stopped, the risk of the third display screen 1300 being squeezed is reduced, and the reliability of the display screen 1300 is improved.

[0156] In some embodiments, reference Fig.25 , Fig.25 This is another simplified structural diagram of the first support plate 20 and the first housing 200 provided by the embodiment of the present application when the foldable electronic device 1000 is in a folded state and subjected to an external impact force. The first limit portion 400 is inclined relative to the reference plane M, and the first limit portion 400 faces the second housing 300. That is, the first limit portion 400 is inclined downward relative to the reference plane M, and the first abutting portion 600 is also inclined downward relative to the reference plane M. The downward tilt here means that when the foldable electronic device 1000 is in a folded state, the first limit portion 400 is inclined downward relative to the reference plane M. Fig.25With the direction in the figure as a reference, with the positive direction of the Z axis as "right", the negative direction of the Z axis as "left", the positive direction of the X axis as "up", and the negative direction of the X axis as "down", the first limit portion 400 is inclined from the upper left direction to the lower right direction. On the one hand, the contact area between the first limit portion 400 and the first abutting portion 600 can be increased. The contact stability between the first shell 200 and the first support plate 20 is further increased, the force balance between 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, when the foldable electronic device 1000 is in a folded state and the supporting base 40 is subjected to an impact force, if the downward sliding direction of the first housing 200 is inclined relative to the thickness direction of the supporting base 40, when the first limiting portion 400 abuts against the first abutting portion 600, the first limiting portion 400 generates an oblique downward impact force FA on the first abutting portion 600.

[0158] By setting the first limit portion 400 and the first abutting portion 600 to be inclined downward, the supporting force FA0 provided by the first abutting portion 600 to the first limit portion 400 is inclined upward, and the impact force FA and the supporting force FA0 are in opposite directions, and the supporting force FA0 can offset the impact force FA. 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 is reduced, and the reliability of the display screen 1300 is improved.

[0159] Similarly, the third limit portion 400a is tilted downward relative to the reference plane M, and the third abutting portion 600a is also tilted downward relative to the reference plane M. The contact area between the third limit portion 400a and the third abutting portion 600a can be increased. The stability of the contact between the second housing 300 and the second support plate 20a is further increased, the force balance between the second housing 300 and the second support plate 20a is further improved, and the risk of damage to the second housing 300 and the second support plate 20a is further reduced. In addition, the tendency of the second housing 300 to slide downward can be quickly stopped, the risk of the third display screen 1300 being squeezed is reduced, and the reliability of the display screen 1300 is improved.

[0160] In some embodiments, continue to refer to Fig.25, the angle between the first limit portion 400 and the reference plane M satisfies the following condition: 0 degree < b ≤ 45 degrees. b can be specifically 5°, 10°, 15°, 20°, 25°, 30°, 35°, 40° and 45°, etc. When the foldable electronic device 1000 is in a folded state and the supporting 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 limit portion 400 and the first abutting portion 600 abut. If both the first limit portion 400 and the first abutting portion 600 are inclined surfaces, the supporting force FA0 provided by the first abutting portion 600 to the first limit portion 400 is inclined upward, and the supporting 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 sliding further. If the angle b is greater than 45 degrees, the second force FA02 may be too small, and thus even if the first limiting portion 400 and the first abutting portion 600 abut, the first shell 200 cannot be prevented from continuing to slide.

[0161] By setting the inclination angle b of the first position-limiting portion 400 to be between 0 and 45 degrees, on the one hand, the contact area between the first position-limiting portion 400 and the first abutting portion 600 can be increased, thereby increasing the contact stability between the first housing 200 and the first support plate 20. On the other hand, sufficient abutment force is provided between the first housing 200 and the first support plate 20, thereby preventing the first housing 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 and 45 degrees, the second aspect can increase the contact area between the third limiting portion 400a and the third abutting portion 600a, thereby increasing the contact stability between the second housing 300 and the second support plate 20a. The second aspect allows sufficient abutment force between the second housing 300 and the second support plate 20a to prevent the second housing 300 from sliding relative to the second support plate 20a.

[0163] In another specific embodiment, referring to Fig.26 , Fig.26It is a schematic diagram of the cross-sectional structure of a foldable electronic device 1000 provided in another embodiment of the present application when it is in a folded state. The first support plate 20 and the first swing arm 10 are matched by a second limiting portion 500 and a second abutting portion 700. The second limiting portion 500 is the bottom surface of the first abutting groove 13, and the second abutting portion 700 is the end surface of the second protrusion 29. The first support plate 20 and the first shell 200 are matched by a first limiting portion 400 and a first abutting portion 600. Specifically, the first limiting portion 400 is the groove side surface of the first mounting groove 214, and the first abutting portion 600 is a side surface of the first support plate 20. That is, compared with the above embodiment, in this embodiment, the first limiting portion 400 and the first abutting portion 600 are both one. As a result, 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 with each other through the fourth limiting portion 500a and the fourth abutting portion 700a. The second support plate 20a and the second housing 300 are matched with each other through the third limiting portion 400a and the third abutting portion 600a.

[0165] In some embodiments, reference Fig. 27 , Fig. 27 yes Figure 5 The partial structural diagram of the rotating mechanism 100 is shown in FIG. The rotating mechanism 100 further includes a first stopper 60, a second stopper 61, a first main elastic member 62, a second main elastic member 63, a first sliding member 64, a second sliding member 65, a first pushing member 66, a second pushing member 67, a first driving member 68, and a second driving member 69. The first sliding member 64 and the second sliding member 65 are fixedly connected by a first connecting member 70. The first pushing member 66 and the second pushing member 67 are fixedly connected by a second connecting member 71. The first driving member 68 and the second driving member 69 are fixedly connected by a third connecting member 72, and the third connecting member 72 and the second connecting member 71 are fixedly connected by a fourth connecting member (not shown).

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

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

[0168] The first swing arm 10 , the first mounting shaft 41 , the first position-limiting member 60 , the first main elastic member 62 , and the first sliding member 64 cooperate with each other to provide a damping force for the first housing 200 .

[0169] Specifically, the first stopper 60 is fixed to the first mounting shaft 41, the first main elastic member 62 and the first sliding member 64 are both slidably connected to the first mounting shaft 41, and the two ends of the first main elastic member 62 are respectively abutted against the first stopper 60 and the first sliding member 64. The first concave cam 111 and the first rotating part 11 are both rotatably connected to the first mounting shaft 41. Along the axial direction of the first mounting shaft 41, the first stopper 60, the first main elastic member 62, the first sliding member 64, the first concave cam 111 and the first rotating part 11 are arranged in sequence. The first concave-convex part and the first matching part 75 are matched.

[0170] It is understandable that the first position-limiting member 60 may be a retaining spring, which is fixedly connected to the first position-limiting member 60. The first main elastic member 62 may be a spring, which is slidably sleeved on the first mounting shaft 41. The first sliding member 64 is provided with a through hole extending along the Y-axis direction. The first mounting shaft 41 passes through the through hole of the first sliding member 64, the through hole of the first concave cam 111, and the rotating hole of the first rotating part 11, so that the first sliding member 64 is slidably connected to the first mounting shaft 41, and the first concave cam 111 and the first rotating part 11 are both rotatably 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 cam 111 abuts against the concave part of the first matching part 75, and the first main elastic member 62 is in the pre-compressed state. At this time, the first main elastic member 62 remains in the pre-compressed state to provide the first housing 200 with a supporting force to maintain the unfolded state.

[0172] When the foldable electronic device 1000 switches from the unfolded state to the folded state, the first shell 200 rotates around the supporting base 40, the first sliding part 12 slides in the first sliding groove 231, the first rotating part 11 and the first concave cam 111 rotate around the first mounting axis 41, and during the rotation of the first concave cam 111, the protrusion of the first concave-convex part of the first concave cam 111 gradually switches to abutment with the protrusion of the first matching part 75, and the first sliding member 64 gradually moves toward the negative direction of the Y-axis to compress one end of the first main elastic member 62, that is, the first main elastic member 62 is in a pre-compression state to provide damping force for the first shell 200.

[0173] When the foldable electronic device 1000 is in a folded state, the rotating mechanism 100 is in a folded state, the protrusion of the first concave-convex portion of the first concave cam 111 abuts against the concave portion of the first matching portion 75, and the first main elastic member 62 returns to a pre-compression state to provide supporting force for the first shell 200 to remain in a folded state.

[0174] In some embodiments, continue to refer to Fig. 27 The second concave cam 112, the first pushing member 66 and the first driving member 68 can also be used to compress the end of the first main elastic member 62 away from the first sliding member 64 to increase the compression stroke of the first main elastic member 62, thereby increasing the damping force provided for the first shell 200.

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

[0176] It can be understood that the first pushing member 66 and the first driving member 68 are both provided with a through hole penetrating along the Y-axis direction, and the first mounting shaft 41 passes through the through holes of the first pushing member 66 and the first driving member 68, so that the first pushing member 66 and the first driving member 68 are slidably connected to the first mounting shaft 41. The first mounting shaft 41 passes through the through hole of the second concave cam 112, so that the second concave cam 112 is rotatably connected to the first mounting shaft 41.

[0177] When the foldable electronic device 1000 is in the unfolded state, the protrusion of the second concave-convex portion abuts against the concave portion of the second matching portion 76 .

[0178] When the foldable electronic device 1000 switches from the unfolded state to the folded state, the first housing 200 rotates around the supporting base 40, the first sliding portion 12 slides in the first sliding groove 231, and the first rotating portion 11 simultaneously drives the first concave cam 111 and the second concave cam 112 to rotate along the first mounting axis 41. During the rotation of the first concave cam 111, the protrusion of the first concave cam 111 gradually switches to abutment with the protrusion of the first matching portion 75. During this process, the first sliding member 64 gradually moves in the negative direction of the Y axis to compress one end of the first main elastic member 62. At the same time, during the rotation of the second concave cam 112, the protrusion of the second concave cam 112 gradually switches to abutment with the protrusion of the second matching portion 76. During this process, the first pushing member 66 gradually moves toward the positive direction of the Y-axis, and the first pushing member 66 drives the first driving member 68 to gradually move toward the positive direction of the Y-axis to compress the other end of the first main elastic member 62 to provide a damping force for the first main elastic member 62. The two ends of the first main elastic member 62 are compressed synchronously, and the compression stroke of the first main elastic member 62 is doubled. Therefore, the damping force provided by the first main elastic member 62 to the first shell 200 is greatly increased.

[0179] In some embodiments, continue to refer to Fig. 27 , the second rotating part 11a, the third concave cam 111a, the fourth concave cam 112a, the second mounting shaft 42, the second stopper 61, the second main elastic member 63, the second sliding member 65, the second pushing member 67 and the second driving member 69 cooperate to provide a damping force for the second housing 300. The process of the second housing 300 obtaining the damping force is the same as the process of the first housing 200 obtaining the damping force, which will not be repeated. The principle that the third concave cam 111a ensures that the second main elastic member 63 provides sufficient damping force is the same as the principle that the first concave cam 111 ensures that the first main elastic member 62 provides sufficient damping force, and the principle that the fourth concave cam 112a ensures that the damping force of the second main elastic member 63 is the same as the principle that the second concave cam 112 ensures that the first main elastic member 62 provides sufficient damping force, which will not be repeated.

[0180] In some embodiments, continue to refer to Fig. 27 , the damping force can be further increased by using an auxiliary elastic member 79 and an auxiliary shaft (not shown). The number of the auxiliary shaft and the auxiliary elastic member 79 can be one, two, three or four, etc., and the present application does not limit it. Specifically, the opposite ends of the auxiliary shaft are slidably connected to the first connecting member 70 and the third connecting member 72 respectively. The auxiliary elastic member 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. 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 both ends of the auxiliary elastic member 79 are compressed synchronously, thereby increasing the damping force.

[0182] In some embodiments, continue to refer to Fig. 27 The outer circumference of the first rotating part 11 is provided with a first driving tooth 113, and the outer circumference of the second rotating part 11a is provided with a second driving tooth 113a. The first rotating part 11 is rotatably connected to the first installation shaft 41, and the second rotating part 11a is rotatably connected to the second installation shaft 42. The first driving tooth 113 and the second driving tooth 113a are transmission-connected. In this way, the synchronization of the rotation of the first shell 200 and the second shell 300 can be achieved.

[0183] When the first shell 200 rotates around the bearing base 40, the second shell 300 can be driven to rotate synchronously. When the second shell 300 rotates around the bearing base 40, the first shell 200 can be driven to rotate synchronously. The following is an example of the first shell 200 rotating around the bearing base 40 and driving the second shell 300 to rotate synchronously.

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

[0185] In some embodiments, the rotating mechanism 100 further includes a support frame (not shown) and N synchronous gears, where N is an even number, that is, the number of synchronous gears can be two, four, six or eight, etc. In a specific embodiment, there are two synchronous gears. Fig. 27 The two synchronous gears are the first synchronous gear 73 and the second synchronous gear 74. The first synchronous gear 73 and the second synchronous gear 74 are meshed with each other, and the first synchronous gear 73 is also meshed with the first driving tooth 113, and the second synchronous gear 74 is also meshed with the second driving tooth 113a.

[0186] The support frame is disposed between the first rotating part 11 and the second rotating part 11a, and the first installation shaft 41 and the second installation shaft 42 also pass through the support frame. The fixed shafts extending from both ends of the synchronous gear are connected to the support frame and the second connecting member 71 respectively.

[0187] 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 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, and the second sliding part 12a drives the second housing 300 to rotate, so that the first housing 200 and the second housing 300 rotate synchronously.

[0188] In some other embodiments, the rotating mechanism 100 may not be provided with a synchronous gear, but the synchronous transmission is achieved by directly meshing the first driving teeth 113 and the second driving teeth 113a.

[0189] The above are only some embodiments and implementation methods of the present application, and the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by any person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A foldable electronic device, characterized in that: include: A first shell, a second shell, a bearing base, a first swing arm, a second swing arm and a first support plate; The bearing base is arranged between the first shell and the second shell, the opposite sides of the first swing arm are respectively connected to the first shell and the bearing base; the opposite sides of the second swing arm are respectively connected to the second shell and the bearing base; the first support plate is respectively connected to the first shell and the first swing arm in a sliding and rotatable manner; The first housing is provided with a first mounting groove, and a first limiting portion is provided in the first mounting groove; the first swing arm is provided with a second limiting portion; the first support plate is provided with a first abutting portion and a second abutting portion; When the foldable electronic device 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.

2. The foldable electronic device according to claim 1, characterized in that: The first limiting portion includes an inner wall surface of the first mounting groove, and the first abutting portion includes a surface of the first supporting plate.

3. The foldable electronic device according to claim 1 or 2, characterized in that: A first sliding groove is provided in the first installation groove, and the first swing arm is slidably and rotatably connected to the first sliding groove; the first limiting portion is provided in the first sliding groove; The first swing arm is located between the first support plate and the bottom surface of the first sliding groove; the first support plate is provided with a first protrusion, and when the foldable electronic device 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 provided with the first supporting portion.

4. The foldable electronic device according to claim 3, characterized in that: A first limiting groove is provided in the first sliding groove, the first limiting portion includes an inner wall surface of the first limiting groove, and the first abutting portion includes a surface of the first protrusion.

5. The foldable electronic device according to claim 4, characterized in that: The first shell includes a first middle frame and a first mounting block, the first middle frame is provided with the first mounting groove; the first mounting block is fixed in the first mounting groove, the first mounting block is provided with the first sliding groove, and the first limiting groove is provided on the bottom surface of the first sliding groove.

6. The foldable electronic device according to any one of claims 1 to 5, characterized in that: The first swing arm is provided with a first supporting groove, and the second limiting portion is provided in the first supporting groove; the first support plate is provided with a second protrusion, and when the foldable electronic device is in a folded state, at least part of the second protrusion extends into the first supporting groove; the second protrusion is provided with the second supporting portion.

7. The foldable electronic device according to claim 6, characterized in that: The second limiting portion includes an inner wall surface of the first abutting groove, and the second abutting portion includes a surface of the second protrusion.

8. The foldable electronic device according to any one of claims 1 to 7, characterized in that: The first limiting portion and the first supporting portion are parallel.

9. The foldable electronic device according to claim 8, characterized in that: The first limiting portion is parallel to a reference surface; the reference surface is parallel to a plane where a thickness direction of the first shell and a length direction of the first shell are located.

10. The foldable electronic device according to claim 8, characterized in that: When the foldable electronic device is in a folded state, the first limiting portion is inclined relative to a reference plane, and the first limiting portion faces the second shell; the reference plane is parallel to a plane where a thickness direction of the first shell and a length direction of the first shell are located.

11. The foldable electronic device according to claim 10, characterized in that: An included angle b between the first limiting portion and the reference surface satisfies the following condition: 0 degrees < b ≤ 45 degrees.

12. The foldable electronic device according to any one of claims 1 to 11, characterized in that: The second limiting portion and the second abutting portion are parallel.

13. The foldable electronic device according to claim 12, characterized in that: The second limiting portion is parallel to a reference plane, and the reference plane is parallel to a plane where a thickness direction of the first shell and a length direction of the first shell are located.

14. The foldable electronic device according to claim 12, characterized in that: When the foldable electronic device is in a folded state, the second limiting portion is inclined relative to a reference plane, and the second limiting portion faces the second shell; the reference plane is parallel to a plane where the thickness direction of the first shell and the length direction of the first shell are located.

15. The foldable electronic device according to claim 14, characterized in that: An included angle a between the second limiting portion and the reference surface satisfies the following condition: 0 degrees < a ≤ 45 degrees.

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