Hinge mechanism and electronic device

Abstract

This invention relates to the field of electronic product technology, and provides a hinge mechanism and an electronic device. The hinge mechanism includes a hinge support, a first rocker arm assembly, and a drive assembly. The first rocker arm assembly includes a first rocker arm and a second rocker arm, which are convexly connected and rotatably mounted on the hinge support. The drive assembly is mounted on the hinge support and includes a rotation drive member and a drive arm, which are connected to drive the drive arm to swing relative to the hinge support. The drive arm is located on one side of the first rocker arm and is convexly connected to it. The hinge mechanism of this invention can automatically fold or unfold according to the driving force provided by the drive assembly, without requiring manual control by the user, facilitating quick control of the electronic device between folded and unfolded states.

Description

Technical Field

[0001] This invention relates to the field of electronic product technology, and more particularly to a hinge mechanism and electronic device. Background Technology

[0002] In related technologies, foldable electronic devices such as mobile phones, tablets, and translators typically include a first device body, a second device body, and a hinge mechanism. The hinge mechanism enables rotational connection between the first and second device bodies, ensuring the electronic device can switch between a folded and unfolded state. However, this hinge mechanism relies solely on the user's hands for manual control of folding or unfolding, which presents numerous inconveniences in practical applications. Summary of the Invention

[0003] The present invention provides a hinge mechanism and an electronic device to at least solve or improve the problem that existing hinge mechanisms can only be manually controlled to fold or unfold, which is inconvenient to operate.

[0004] In a first aspect, the present invention provides a hinge mechanism, comprising: Hinge bracket; The first rocker arm assembly includes a first rocker arm and a second rocker arm, the first rocker arm and the second rocker arm are throttle-connected and respectively rotatably mounted on the hinge bracket; A drive assembly, disposed on the hinge bracket, includes a rotary drive and a drive arm, the rotary drive and the drive arm being connected to drive the drive arm to swing relative to the hinge bracket. The drive arm is located on one side of the first rocker arm and is connected to the first rocker arm in a transmission manner.

[0005] According to a hinge mechanism provided by the present invention, the drive assembly further includes: A clutch mechanism is disposed on the hinge bracket and connected to the drive arm; When the hinge mechanism is folded or unfolded by the rotary drive, the clutch mechanism controls the drive arm to be in a first position close to the rotary drive, so as to realize the transmission connection between the rotary drive and the drive arm. When the hinge mechanism is manually folded or unfolded, the clutch mechanism controls the drive arm to a second position away from the rotary drive member, thereby disengaging the mechanical transmission between the rotary drive member and the drive arm.

[0006] According to a hinge mechanism provided by the present invention, the output end of the rotary drive member is provided with a first helical tooth structure, and the drive arm is provided with a second helical tooth structure facing the output end of the rotary drive member; When the drive arm is in the first position, the first helical tooth structure and the second helical tooth structure are engaged; when the drive arm is in the second position, the first helical tooth structure and the second helical tooth structure are disengaged.

[0007] According to a hinge mechanism provided by the present invention, the clutch mechanism includes: A clutch plate is disposed on the side of the drive arm opposite to the rotary drive member, and is movably disposed on the hinge bracket along the axial direction of the rotary drive member; An elastic element abuts between the clutch plate and the first rocker arm assembly, the first rocker arm assembly being located on the side of the drive arm opposite to the rotary drive element.

[0008] According to a hinge mechanism provided by the present invention, a guide structure is provided between the clutch plate and the hinge support, the guide structure comprising: A guide shaft is disposed on the hinge bracket, and the central axis of the guide shaft is parallel to the rotation axis of the rotary drive component; A guide hole is provided in the clutch plate, and the guide shaft passes through the guide hole.

[0009] According to a hinge mechanism provided by the present invention, a first rocker arm has a insertion groove formed on the side facing the drive arm, and the drive arm is movably inserted into the insertion groove along the length direction of the insertion groove; Wherein, along the axial direction of the rotary drive member, the width of the insertion slot is greater than the width of the drive arm.

[0010] According to a hinge mechanism provided by the present invention, the first rocker arm has a first toothed structure, the second rocker arm has a second toothed structure, and the first toothed structure and the second toothed structure mesh with each other.

[0011] According to a hinge mechanism provided by the present invention, the first rocker arm assembly further includes: A limiting seat is provided on the hinge bracket; The first rotating shaft and the second rotating shaft are spaced apart from each other and arranged side by side on the limiting seat. The first rocker arm is connected to the first rotating shaft, and the second rocker arm is connected to the second rotating shaft. When the hinge mechanism is extended to its maximum angle, the first side of the limiting seat abuts against the side of the first rocker arm opposite to the second rocker arm, and the second side of the limiting seat abuts against the side of the second rocker arm opposite to the first rocker arm.

[0012] According to a hinge mechanism provided by the present invention, the first rotating shaft is connected to the output end of the rotary drive member, and the drive arm and the first rocker arm are rotatably disposed on the first rotating shaft.

[0013] A hinge mechanism according to the present invention further includes: The second rocker arm assembly includes a third rocker arm and a fourth rocker arm, the third rocker arm and the fourth rocker arm being rotatably mounted on the hinge bracket; The first rocker arm assembly and the second rocker arm assembly are arranged side by side along the length of the hinge bracket, and the drive assembly is located between the first rocker arm assembly and the second rocker arm assembly.

[0014] In a second aspect, the present invention also provides an electronic device, comprising: First equipment body and second equipment body; The hinge mechanism described above is disposed between the first device body and the second device body, and the rotary drive is electrically connected to either the first device body or the second device body.

[0015] According to an electronic device provided by the present invention, when the hinge mechanism is in the unfolded state, the maximum included angle between the first device body and the second device body is 100° to 120°. And / or, the first device body has a first display screen on the side opposite to the second device body, and the second device body has a second display screen on the side opposite to the first device body.

[0016] This invention provides a hinge mechanism and an electronic device. The hinge mechanism integrates a first rocker arm assembly and a drive assembly on a hinge support. By setting the drive assembly to include a rotary drive element and a drive arm, the drive arm is connected to the first rocker arm of the first rocker arm assembly. The rotary drive element can drive the drive arm to swing the first rocker arm of the first rocker arm assembly relative to the hinge support. Based on the transmission setting between the first rocker arm and the second rocker arm, the first rocker arm and the second rocker arm can swing towards or away from the hinge support, thereby conveniently controlling the hinge mechanism to switch between folded and unfolded states. This hinge mechanism can automatically fold or unfold according to the driving force provided by the drive assembly without manual control by the user, facilitating quick control of the electronic device between folded and unfolded states. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1This is one of the structural schematic diagrams of the hinge mechanism provided by the present invention.

[0019] Figure 2 This is the second schematic diagram of the hinge mechanism provided by the present invention.

[0020] Figure 3 This is a cross-sectional schematic diagram of the hinge mechanism provided by the present invention.

[0021] Figure 4 This is a schematic diagram of the structure of the driving component provided by the present invention.

[0022] Figure 5 This is a schematic diagram of the electronic device provided by the present invention in a folded state.

[0023] Figure 6 This is one of the structural schematic diagrams of the electronic device provided by the present invention in its unfolded state.

[0024] Figure 7 This is the second schematic diagram of the electronic device provided by the present invention in its unfolded state.

[0025] Figure label: 1. Hinge mechanism; 11. Hinge bracket; 111. Base; 112. Shell cover; 12. First rocker arm assembly; 121. First rocker arm; 1210. First toothed structure; 1211. Insertion slot; 122. Second rocker arm; 1220. Second toothed structure; 1201. First rotating shaft; 1202. Second rotating shaft; 1203. Limiting seat; 13. Drive assembly; 131. Rotary drive component; 1310. First helical tooth structure; 132. Drive arm; 1320. Second helical tooth structure; 133. Clutch mechanism; 1331. Clutch plate; 1332. Elastic element; 14. Second rocker arm assembly; 141. Third rocker arm; 142. Fourth rocker arm; 110. Guide structure; 1101. Guide shaft; 1102. Guide hole; 2. First equipment body; 201. First display screen; 3. Second equipment body; 301. Second display screen. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0027] The following is combined Figures 1 to 7 The hinge mechanism and electronic device of the present invention are described.

[0028] In the first aspect, such as Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a hinge mechanism 1, including: a hinge bracket 11, a first rocker arm assembly 12, and a drive assembly 13; The first rocker arm assembly 12 includes a first rocker arm 121 and a second rocker arm 122, which are connected by a transmission and are rotatably mounted on the hinge bracket 11 respectively; the drive assembly 13 is mounted on the hinge bracket 11 and includes a rotation drive member 131 and a drive arm 132, which are connected to drive the drive arm 132 to swing relative to the hinge bracket 11. The drive arm 132 is located on one side of the first rocker arm 121 and is connected to the first rocker arm 121 in a transmission manner.

[0029] It is understood that the hinge bracket 11 includes a base 111 and a cover 112. The cover 112 is detachably disposed on the base 111. A receiving cavity is formed between the base 111 and the cover 112, and a first opening, a second opening and a third opening communicating with the receiving cavity are formed therebetween. The rotary drive member 131 is disposed in the receiving cavity and connected to the base 111. The first opening and the second opening are arranged opposite to each other along the width direction of the hinge bracket 11, and the first opening and the third opening are arranged along the length direction of the hinge bracket 11.

[0030] The first end of the first rocker arm 121 and the first end of the second rocker arm 122 are opposite to each other and are rotatably mounted on the hinge bracket 11 respectively; wherein, the first rocker arm 121 passes through the first opening and the second rocker arm 122 passes through the second opening, and the first end of the first rocker arm 121 and the first end of the second rocker arm 122 are rotatably mounted on the base 111 respectively, so that the first end of the first rocker arm 121 and the first end of the second rocker arm 122 are accommodated in the receiving cavity.

[0031] Meanwhile, the drive arm 132 passes through the third opening, and the first end of the drive arm 132 is rotatably disposed on the base 111 to be accommodated in the receiving cavity. The second end of the drive arm 132 extends out of the receiving cavity to achieve a transmission connection with the first rocker arm 121.

[0032] In practical applications, the first rocker arm 121 is configured to connect to the first device body 2, and the second rocker arm 122 is configured to connect to the second device body 3. The first rocker arm 121 and the second rocker arm 122 can be connected by a gear mechanism to enable the first rocker arm 121 and the second rocker arm 122 to swing towards or away from the hinge bracket 11. Furthermore, based on the transmission connection between the drive arm 132 and the first rocker arm 121, the drive arm 132 and the first rocker arm 121 can swing synchronously relative to the hinge bracket 11 in the same direction of rotation.

[0033] For example, when the rotary drive 131 drives the drive arm 132 to swing relative to the hinge bracket 11 in a first direction (e.g., clockwise), the drive arm 132 will drive the first rocker arm 121 to swing relative to the hinge bracket 11 in the first direction (e.g., clockwise). Based on the transmission connection between the first rocker arm 121 and the second rocker arm 122, the first rocker arm 121 and the second rocker arm 122 can swing in opposite directions relative to the hinge bracket 11, so that the hinge mechanism 1 switches to the unfolded state.

[0034] For example, when the rotary drive 131 drives the drive arm 132 to swing relative to the hinge bracket 11 in a second direction (e.g., counterclockwise), the drive arm 132 will drive the first rocker arm 121 to swing relative to the hinge bracket 11 in a second direction (e.g., counterclockwise). Based on the transmission connection between the first rocker arm 121 and the second rocker arm 122, the first rocker arm 121 and the second rocker arm 122 can swing towards each other relative to the hinge bracket 11, so that the hinge mechanism 1 switches to a folding form.

[0035] The hinge mechanism 1 shown in this invention integrates a first rocker arm assembly 12 and a drive assembly 13 on a hinge bracket 11. By setting the drive assembly 13 to include a rotary drive member 131 and a drive arm 132, the drive arm 132 is connected to the first rocker arm 121 of the first rocker arm assembly 12. The rotary drive member 131 can drive the drive arm 132 to drive the first rocker arm 121 of the first rocker arm assembly 12 to swing relative to the hinge bracket 11. Based on the transmission setting between the first rocker arm 121 and the second rocker arm 122, the first rocker arm 121 and the second rocker arm 122 can swing towards or away from the hinge bracket 11, thereby conveniently controlling the hinge mechanism 1 to switch between folded and unfolded states. This hinge mechanism 1 can automatically fold or unfold according to the driving force provided by the drive assembly 13 without manual control by the user, making it easy to quickly control electronic devices between folded and unfolded states.

[0036] In some embodiments, such as Figure 2 As shown, the hinge mechanism 1 also includes a clutch mechanism 133, which is disposed on the hinge bracket 11 and connected to the drive arm 132. When the hinge mechanism 1 is folded or unfolded by the rotary drive member 131, the clutch mechanism 133 controls the drive arm 132 to be in a first position close to the rotary drive member 131, so as to realize the transmission connection between the rotary drive member 131 and the drive arm 132. When the hinge mechanism 1 is folded or unfolded manually, the clutch mechanism 133 controls the drive arm 132 to be in a second position away from the rotary drive member 131, so as to disengage the mechanical transmission between the rotary drive member 131 and the drive arm 132.

[0037] It is understandable that the clutch mechanism 133 controls the power transmission between the rotary drive 131 and the drive arm 132 by switching the position of the drive arm 132 relative to the rotary drive 131. This design can control the hinge mechanism 1 to automatically fold or unfold based on the driving force provided by the rotary drive 131, and also meets the user's need to manually control the hinge mechanism 1 to fold or unfold.

[0038] When the rotary drive 131 is started, the clutch mechanism 133 controls the output end of the rotary drive 131 and the drive arm 132 to maintain a transmission connection. This allows the torsional torque output by the rotary drive 131 to drive the drive arm 132 to swing relative to the hinge bracket 11. Based on the transmission connection between the drive arm 132 and the first rocker arm 121 of the first rocker arm assembly 12, the drive arm 132 can drive the first rocker arm assembly 12 to swing relative to the hinge bracket 11, thereby controlling the hinge mechanism 1 to automatically fold or unfold.

[0039] When the rotary drive 131 stops operating, or when the rotary drive 131 is not running, the user can manually unfold or fold the first device body 2 and the second device body 3 of the electronic device by using both hands, so as to force the hinge mechanism 1 to be manually unfolded or folded. This will cause the first rocker arm 121 and the second rocker arm 122 to swing towards or away from the hinge bracket 11 under manual drive. As a result, the first rocker arm 121 will drive the drive arm 132 to swing relative to the hinge bracket 11. At this time, since the clutch mechanism 133 releases the mechanical transmission between the rotary drive 131 and the drive arm 132, it can be ensured that the drive arm 132 only swings smoothly relative to the hinge bracket 11 without causing the output end of the rotary drive 131 to rotate.

[0040] In some embodiments, such as Figure 2 and Figure 4 As shown, the output end of the rotary drive 131 is provided with a first helical tooth structure 1310, and the drive arm 132 is provided with a second helical tooth structure 1320 facing the output end of the rotary drive 131. When the drive arm 132 is in the first position, the first helical tooth structure 1310 and the second helical tooth structure 1320 are engaged; when the drive arm 132 is in the second position, the first helical tooth structure 1310 and the second helical tooth structure 1320 are disengaged.

[0041] Understandably, the first helical tooth structure 1310 typically includes multiple first helical teeth, which are arranged circumferentially relative to the rotation axis of the rotary drive member 131. Correspondingly, the second helical tooth structure 1320 can be disposed at the first end of the drive arm 132 rotatably connected to the hinge bracket 11, and located on the side of the first end of the drive arm 132 facing the rotary drive member 131. The second helical tooth structure 1320 typically includes multiple second helical teeth, which are also arranged circumferentially relative to the rotation axis of the rotary drive member 131.

[0042] When the rotary drive 131 is started, the drive arm 132 is in a first position close to the rotary drive 131 under the control of the clutch mechanism 133. At this time, each of the first helical teeth corresponding to the first helical tooth structure 1310 and each of the second helical teeth corresponding to the second helical tooth structure 1320 are engaged, so that the first helical tooth structure 1310 and the second helical tooth structure 1320 are in an engaged state, thereby realizing the transmission connection between the rotary drive 131 and the drive arm 132.

[0043] When the rotary drive 131 is not running, and when the user manually controls the hinge mechanism 1 to fold or unfold, the inclined surface cooperation between the first helical tooth corresponding to the first helical tooth structure 1310 and the second helical tooth corresponding to the second helical tooth structure 1320 can ensure that the cooperation structure between the first helical tooth structure 1310 and the second helical tooth structure 1320 will not affect the normal swing of the drive arm 132 relative to the hinge bracket 11.

[0044] In practical applications, such as Figure 4 As shown, when the hinge mechanism 1 is in the folded state, the tooth peak of the second helical tooth corresponding to the second helical tooth structure 1320 is located at the bottom of the groove between two adjacent first helical teeth of the first helical tooth structure 1310, and the first helical tooth structure 1310 and the second helical tooth structure 1320 are engaged; when the user controls the hinge mechanism 1 to switch from the folded state to the unfolded state, the tooth peak of the second helical tooth slides along the groove wall, at which time the first helical tooth structure 1310 and the second helical tooth structure 1320 gradually move away from each other until the drive arm 132 is away from the rotating drive member 131. In the second position, the first helical tooth structure 1310 and the second helical tooth structure 1320 are disengaged. At this time, the first helical tooth structure 1310 and the second helical tooth structure 1320 are connected, but remain disengaged. When the first rocker arm 121 and the second rocker arm 122 of the hinge mechanism 1 are extended to the maximum opening angle, the tooth peak of the second helical tooth corresponding to the second helical tooth structure 1320 reaches the position of the groove opening, that is, the tooth peak of the second helical tooth is close to the tooth peak of the first helical tooth, and the interval distance between the drive arm 132 and the rotary drive member 131 reaches the maximum.

[0045] In some embodiments, such as Figure 2As shown, the rotary drive 131 includes a drive motor and a reduction gearbox. The drive motor and the reduction gearbox are respectively mounted on the hinge bracket 11. The output shaft of the drive motor is connected to the input end of the reduction gearbox, and the output end of the reduction gearbox is connected to the first helical gear structure 1310.

[0046] It is understood that the drive motor can be a servo motor known in the art, and the drive motor can be electrically connected to either the first device body 2 or the second device body 3.

[0047] For example, the drive motor is electrically connected to the main board of the first device body 2, and the main board is electrically connected to the button disposed on the surface of the first device body 2. The user can input control commands by pressing the button, so that the main board of the first device body 2 controls the drive motor to rotate according to the electrical signal of the button. The drive motor drives the drive arm 132 to swing the first rocker arm assembly 12 through the reduction gearbox, thereby controlling the hinge mechanism 1 to fold or unfold.

[0048] It should be noted that the drive motor is reduced in speed through a reduction gearbox, which can achieve a larger transmission ratio and output torque, thereby providing sufficient opening and closing force for the hinge mechanism 1.

[0049] In some embodiments, such as Figure 2 and Figure 4 As shown, the clutch mechanism 133 includes a clutch plate 1331 and an elastic member 1332; the clutch plate 1331 is disposed on the side of the drive arm 132 away from the rotary drive member 131, and is movably disposed on the hinge bracket 11 along the axial direction of the rotary drive member 131; the elastic member 1332 abuts between the clutch plate 1331 and the first rocker arm assembly 12, the first rocker arm assembly 12 being located on the side of the drive arm 132 away from the rotary drive member 131.

[0050] It is understandable that the elastic element 1332 can be a spring. Based on the elastic force provided by the elastic element 1332, the clutch plate 1331 will apply a thrust to the side of the drive arm 132 toward the rotary drive 131. Combined with the interaction between the first helical tooth structure 1310 and the second helical tooth structure 1320, the position of the drive arm 132 relative to the rotary drive 131 can be well controlled to ensure that the hinge mechanism 1 can be folded or unfolded under the active drive based on the drive component 13 and the manual drive of the user.

[0051] In practical applications, the elastic force parameters of the elastic element 1332 need to be set according to actual requirements to meet the needs of the hinge mechanism 1 to fold or unfold under the active drive of the drive component 13 and the manual drive of the user. Specifically, when the hinge mechanism 1 folds or unfolds under the active drive of the drive component 13, the axial force generated when the torque of the rotary drive component 131 is transmitted to the first helical tooth structure 1310 is less than the elastic force generated by the compressed elastic element 1332, which keeps the first helical tooth structure 1310 and the second helical tooth structure 1320 in a meshing state, thereby realizing normal power transmission between the rotary drive component 131 and the drive arm 132. When the hinge mechanism 1 is folded or unfolded manually, the axial force generated when the torque of the drive arm 132 is transmitted to the second helical tooth structure 1320 through the first rocker arm assembly 12 is greater than the elastic force generated by the compressed elastic element 1332. The elastic element 1332 will be further compressed, which will cause the second helical tooth structure 1320 to gradually move away from the first helical tooth structure 1310 and separate from the first helical tooth structure 1310, thereby releasing the mechanical transmission between the rotation drive member 131 and the drive arm 132.

[0052] In some embodiments, such as Figure 2 and Figure 4 As shown, a guide structure 110 is provided between the clutch plate 1331 and the hinge bracket 11. The guide structure 110 includes: a guide shaft 1101 and a guide hole 1102. The guide shaft 1101 is disposed on the hinge bracket 11, and the central axis of the guide shaft 1101 is parallel to the rotation axis of the rotary drive component 131; the guide hole 1102 is disposed on the clutch plate 1331, and the guide shaft 1101 passes through the guide hole 1102.

[0053] Understandably, based on the guiding effect of the guide structure 110, the clutch plate 1331 can be moved stably along the rotation axis of the rotary drive member 131, so that the elastic member 1332 can apply a force to the drive arm 132 stably through the clutch plate 1331, thereby better controlling the position of the drive arm 132 relative to the rotary drive member 131.

[0054] In some embodiments, when the elastic member 1332 is a spring and the output end of the rotary drive member 131 is connected to the first rotating shaft 1201 corresponding to the first rocker arm 121, the first end of the clutch plate 1331 and the spring are respectively sleeved on the outside of the first rotating shaft 1201, the clutch plate 1331 abuts between the drive arm 132 and the first end of the spring, the second end of the spring abuts against the first rocker arm assembly 12 (e.g., the limiting seat 1203 of the first rocker arm assembly 12), and the guide hole 1102 provided at the second end of the clutch plate 1331 and the guide shaft 1101 provided on the hinge bracket 11 are in sliding engagement.

[0055] In some embodiments, such as Figure 1 and Figure 2 As shown, the first rocker arm 121 has a insertion groove 1211 on the side facing the drive arm 132, and the drive arm 132 is movably inserted into the insertion groove 1211 along the length direction of the insertion groove 1211; wherein, along the axial direction of the rotating drive member 131, the groove width of the insertion groove 1211 is greater than the width of the drive arm 132.

[0056] It is understandable that by setting the insertion slot 1211, the transmission connection between the drive arm 132 and the first rocker arm 121 can be realized based on the insertion and cooperation between the drive arm 132 and the insertion slot 1211, thus satisfying the requirement that the drive arm 132 and the first rocker arm 121 swing synchronously relative to the hinge bracket 11 along the rotation axis of the rotation drive member 131.

[0057] Meanwhile, by setting the slot width of the insertion groove 1211 to be greater than the width of the drive arm 132 along the axial direction of the rotary drive member 131, it is ensured that the drive arm 132 and the first rocker arm 121 maintain a transmission connection, while the drive arm 132 can also switch from a first position close to the rotary drive member 131 to a second position far away from the rotary drive member 131, so as to meet the user's need to manually drive the hinge mechanism 1 to fold or unfold.

[0058] The drive arm 132 has a gap between the side of the drive arm 132 away from the rotary drive member 131 and the side of the insertion groove 1211 away from the rotary drive member 131. This gap is used to meet the requirement that the drive arm 132 can move between a first position close to the rotary drive member 131 and a second position away from the rotary drive member 131.

[0059] In some embodiments, such as Figure 3 As shown, the first rocker arm 121 has a first tooth structure 1210, and the second rocker arm 122 has a second tooth structure 1220. The first tooth structure 1210 and the second tooth structure 1220 mesh with each other.

[0060] Understandably, the first toothed structure 1210 is disposed at the first end of the first rocker arm 121 rotatably connected to the hinge bracket 11. The first toothed structure 1210 includes a plurality of first gear teeth arranged circumferentially along the first end of the first rocker arm 121. Correspondingly, the second toothed structure 1220 is disposed at the first end of the second rocker arm 122 rotatably connected to the hinge bracket 11. The second toothed structure 1220 includes a plurality of second gear teeth arranged circumferentially along the first end of the second rocker arm 122. The plurality of first gear teeth and the plurality of second gear teeth mesh with each other to achieve the meshing arrangement between the first toothed structure 1210 and the second toothed structure 1220.

[0061] For the first tooth structure 1210, the outer diameter of the first tooth of the first tooth structure 1210 is 2.5-3.0mm, for example, the outer diameter of the first tooth is 2.5mm, 2.8mm, 3.0mm or other suitable values, and the tooth height of the first tooth is 3.8-4.2mm, for example, the tooth height of the first tooth can be 3.8mm, 4.0mm, 4.2mm or other suitable values.

[0062] For the second tooth structure 1220, the shape of the second tooth of the second tooth structure 1220 is adapted to the shape of the first tooth of the first tooth structure 1210. The outer diameter of the second tooth is 2.5-3.0mm, for example, the outer diameter of the second tooth is 2.5mm, 2.8mm, 3.0mm and other suitable values. The tooth height of the second tooth is 3.8-4.2mm, for example, the tooth height of the second tooth can be 3.8mm, 4.0mm, 4.2mm and other suitable values.

[0063] In practical applications, the meshing arrangement between the first toothed structure 1210 and the second toothed structure 1220 facilitates the relative swinging of the first rocker arm 121 and the second rocker arm 122 with respect to the hinge bracket 11, allowing them to swing towards or away from each other. This design eliminates the need for additional gear transmission mechanisms for coordinated transmission within the narrow space between the first rocker arm 121 and the second rocker arm 122. For example, a gear transmission mechanism could include two meshing gears, one meshing with the first toothed structure 1210 and the other meshing with the second toothed structure 1220. In the event of a fall, the meshing design between the first rocker arm 121 and the second rocker arm 122, achieved through the meshing of the first toothed structure 1210 and the second toothed structure 1220, effectively prevents the additional gear transmission mechanism from breaking due to stress on the rocker arms (e.g., the first rocker arm 121 and / or the second rocker arm 122), thus ensuring the reliability of the hinge mechanism 1.

[0064] In some embodiments, such as Figure 3 and Figure 4 As shown, the first rocker arm assembly 12 also includes: a limiting seat 1203, a first rotating shaft 1201, and a second rotating shaft 1202; The limiting seat 1203 is disposed on the hinge bracket 11. The first rotating shaft 1201 and the second rotating shaft 1202 are spaced apart from each other and are disposed side by side on the limiting seat 1203. The first rocker arm 121 is connected to the first rotating shaft 1201, and the second rocker arm 122 is connected to the second rotating shaft 1202. When the hinge mechanism 1 is extended to its maximum angle, the first side of the limiting seat 1203 abuts against the side of the first rocker arm 121 that is away from the second rocker arm 122, and the second side of the limiting seat 1203 abuts against the side of the second rocker arm 122 that is away from the first rocker arm 121.

[0065] It is understood that the first rotating shaft 1201 and the second rotating shaft 1202 facilitate the rotatable mounting of the first rocker arm 121 and the second rocker arm 122 on the limiting seat 1203 respectively; wherein the limiting seat 1203 can be connected to the base 111 of the hinge bracket 11 by fasteners such as bolts.

[0066] The shaft spacing between the first rotating shaft 1201 and the second rotating shaft 1202 can be 2.2-2.6mm. For example, the shaft spacing can be 2.2mm, 2.4mm, 2.6mm and other suitable values. This shaft spacing is convenient to meet the meshing settings between the first tooth structure 1210 and the second tooth structure 1220.

[0067] Meanwhile, based on the abutting action of the limiting seat 1203 on the first rocker arm 121 and the second rocker arm 122, the maximum unfolding angle of the hinge mechanism 1 can be limited. When the hinge mechanism 1 is unfolded to the maximum angle, the first rocker arm 121 and the second rocker arm 122 only contact the limiting seat 1203 and do not contact the corresponding housing of the hinge bracket 11. When the hinge mechanism 1 falls, it can effectively prevent the rocker arm (e.g., the first rocker arm 121 and / or the second rocker arm 122) from hitting the housing of the hinge bracket 11, thus avoiding cracks in the housing due to the impact of the rocker arm, thereby ensuring that the hinge mechanism 1 can maintain a good appearance during long-term use.

[0068] In some embodiments, such as Figure 2 , Figure 3 and Figure 4 As shown, the first rotating shaft 1201 is connected to the output end of the rotary drive 131, and the drive arm 132 and the first rocker arm 121 are rotatably mounted on the first rotating shaft 1201.

[0069] It is understandable that by connecting the first rotating shaft 1201 to the output end of the rotary drive 131, not only are the first rotating shaft 1201 and the rotary drive 131 integrated into one unit, but also a mounting support is provided for the rotation of the drive arm 132 and the first rocker arm 121 on the hinge bracket 11. This helps to ensure the stability of the hinge mechanism 1 and facilitates the miniaturization design of the hinge mechanism 1.

[0070] In some embodiments, such as Figure 1 and Figure 2 As shown, the hinge mechanism 1 further includes: a second rocker arm assembly 14, which includes a third rocker arm 141 and a fourth rocker arm 142, which are rotatably mounted on the hinge bracket 11. The first rocker arm assembly 12 and the second rocker arm assembly 14 are arranged side by side along the length of the hinge bracket 11, and the drive assembly 13 is located between the first rocker arm assembly 12 and the second rocker arm assembly 14.

[0071] It is understood that the second rocker arm assembly 14 is not configured with the drive assembly 13 of the above embodiment. The first rocker arm 121 of the first rocker arm assembly 12 and the third rocker arm 141 of the second rocker arm assembly 14 are both configured to be connected to the first device body 2. The second rocker arm 122 of the first rocker arm assembly 12 and the fourth rocker arm 142 of the second rocker arm assembly 14 are both configured to be connected to the second device body 3.

[0072] Obviously, the second rocker arm assembly 14 is used to assist the first rocker arm assembly 12 and play a role in rotational support for the first device body 2 and the second device body 3 of the electronic device, which can ensure the stability and reliability of the rotational connection between the first device body 2 and the second device body 3.

[0073] In the second aspect, such as Figure 5 , Figure 6 and Figure 7 As shown, the present invention also provides an electronic device, including: a first device body 2, a second device body 3, and a hinge mechanism 1 as described above. The hinge mechanism 1 is disposed between the first device body 2 and the second device body 3, and the rotation drive member 131 is electrically connected to either the first device body 2 or the second device body 3.

[0074] It is understood that the electronic device can be any device known in the art, such as a foldable phone, laptop, learning machine, translator, or voice recorder, without any specific limitation.

[0075] In practical applications, users can input control commands via buttons located on the side of the second device body 3. The second device body 3 will respond to these commands by controlling the drive assembly 13 to cause the first rocker arm 121 and the second rocker arm 122 to swing relative to the hinge bracket 11 in opposite directions. This allows for convenient control of the hinge mechanism 1 between folded and unfolded states. Consequently, the hinge mechanism 1 drives the first device body 2 and the second device body 3 to rotate relative to each other, enabling the entire electronic device to rotate from folded to unfolded states. Figure 5 The folded state shown can be quickly switched to Figure 6 and Figure 7 The unfolded state shown.

[0076] Of course, since the hinge mechanism 1 is equipped with a clutch mechanism 133, the clutch mechanism 133 makes it easy for the user to manually control the hinge mechanism 1 to fold or unfold. Thus, the user can also directly control the first device body 2 and the second device body 3 to rotate relative to each other with both hands, making the operation simple and convenient.

[0077] Since the electronic device includes a hinge mechanism 1, and the specific structure of the hinge mechanism 1 is as described in the above embodiments, the electronic device of this embodiment includes all the technical solutions of the above embodiments. Therefore, it has at least all the beneficial effects achieved by all the technical solutions of the above embodiments, which will not be described in detail here.

[0078] In some embodiments, such as Figure 6 As shown, when the hinge mechanism 1 is in the unfolded state, the maximum included angle α between the first device body 2 and the second device body 3 is 100° to 120°. For example, the maximum included angle α can be 100°, 105°, 110°, 115°, 120° and other suitable angle values, without specific limitation.

[0079] In some embodiments, such as Figure 7 As shown, the first device body 2 has a first display screen 201 on the side away from the second device body 3, and the second device body 3 has a second display screen 301 on the side away from the first device body 2.

[0080] It is understood that both the first display screen 201 and the second display screen 301 can be touch screens. The electronic device can form a dual-screen translator based on the first device body 2, the second device body 3 and the hinge mechanism 1. When the electronic device is at its maximum unfolded angle, the first display screen 201 and the second display screen 301 can be set to face the two users respectively, so that the two users can exchange information or perform collaborative tasks based on the first display screen 201 and the second display screen 301 respectively, which can be applied to a variety of usage scenarios.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hinge mechanism, characterized in that, include: Hinge bracket; The first rocker arm assembly includes a first rocker arm and a second rocker arm, the first rocker arm and the second rocker arm are throttle-connected and respectively rotatably mounted on the hinge bracket; A drive assembly, disposed on the hinge bracket, includes a rotary drive and a drive arm, the rotary drive and the drive arm being connected to drive the drive arm to swing relative to the hinge bracket. The drive arm is located on one side of the first rocker arm and is connected to the first rocker arm in a transmission manner.

2. The hinge mechanism according to claim 1, characterized in that, The driving component also includes: A clutch mechanism is disposed on the hinge bracket and connected to the drive arm; When the hinge mechanism is folded or unfolded by the rotary drive, the clutch mechanism controls the drive arm to be in a first position close to the rotary drive, so as to realize the transmission connection between the rotary drive and the drive arm. When the hinge mechanism is manually folded or unfolded, the clutch mechanism controls the drive arm to a second position away from the rotary drive member, thereby disengaging the mechanical transmission between the rotary drive member and the drive arm.

3. The hinge mechanism according to claim 2, characterized in that, The output end of the rotary drive component is provided with a first helical tooth structure, and the drive arm is provided with a second helical tooth structure facing the output end of the rotary drive component; When the drive arm is in the first position, the first helical tooth structure and the second helical tooth structure are in a meshing state; When the drive arm is in the second position, the first helical tooth structure and the second helical tooth structure are disengaged.

4. The hinge mechanism according to claim 3, characterized in that, The clutch mechanism includes: A clutch plate is disposed on the side of the drive arm opposite to the rotary drive member, and is movably disposed on the hinge bracket along the axial direction of the rotary drive member; An elastic element abuts between the clutch plate and the first rocker arm assembly, the first rocker arm assembly being located on the side of the drive arm opposite to the rotary drive element.

5. The hinge mechanism according to claim 4, characterized in that, A guide structure is provided between the clutch plate and the hinge bracket, the guide structure comprising: A guide shaft is disposed on the hinge bracket, and the central axis of the guide shaft is parallel to the rotation axis of the rotary drive component; A guide hole is provided in the clutch plate, and the guide shaft passes through the guide hole.

6. The hinge mechanism according to any one of claims 1 to 5, characterized in that, The first rocker arm has a insertion groove on the side facing the drive arm, and the drive arm is movably inserted into the insertion groove along the length direction of the insertion groove; Wherein, along the axial direction of the rotary drive member, the width of the insertion slot is greater than the width of the drive arm.

7. The hinge mechanism according to any one of claims 1 to 5, characterized in that, The first rocker arm has a first toothed structure, and the second rocker arm has a second toothed structure, and the first toothed structure and the second toothed structure mesh with each other.

8. The hinge mechanism according to any one of claims 1 to 5, characterized in that, The first rocker arm assembly further includes: A limiting seat is provided on the hinge bracket; The first rotating shaft and the second rotating shaft are spaced apart from each other and arranged side by side on the limiting seat. The first rocker arm is connected to the first rotating shaft, and the second rocker arm is connected to the second rotating shaft. When the hinge mechanism is extended to its maximum angle, the first side of the limiting seat abuts against the side of the first rocker arm opposite to the second rocker arm, and the second side of the limiting seat abuts against the side of the second rocker arm opposite to the first rocker arm.

9. The hinge mechanism according to claim 8, characterized in that, The first rotating shaft is connected to the output end of the rotary drive, and the drive arm and the first rocker arm are rotatably mounted on the first rotating shaft.

10. The hinge mechanism according to any one of claims 1 to 5, characterized in that, Also includes: The second rocker arm assembly includes a third rocker arm and a fourth rocker arm, the third rocker arm and the fourth rocker arm being rotatably mounted on the hinge bracket; The first rocker arm assembly and the second rocker arm assembly are arranged side by side along the length of the hinge bracket, and the drive assembly is located between the first rocker arm assembly and the second rocker arm assembly.

11. An electronic device, characterized in that, include: First equipment body and second equipment body; The hinge mechanism as described in any one of claims 1 to 10, wherein the hinge mechanism is disposed between the first device body and the second device body, and the rotary drive is electrically connected to either the first device body or the second device body.

12. The electronic device according to claim 11, characterized in that, When the hinge mechanism is in the unfolded state, the maximum included angle between the first device body and the second device body is 100° to 120°. And / or, the first device body has a first display screen on the side opposite to the second device body, and the second device body has a second display screen on the side opposite to the first device body.

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