Hinge device and electronic equipment

Abstract

The embodiment of the utility model provides a hinge device and electronic equipment, and relates to the technical field of electronics. The hinge device comprises a cover plate, a supporting plate and at least two rotating assemblies. The cover plate covers the supporting plate, the first surface of the cover plate and the second surface of the supporting plate oppositely define a first sliding groove, and the two rotating assemblies are arranged on the two opposite sides of the supporting plate correspondingly; the rotating assembly comprises a first rotating piece and a second rotating piece, one end of the first rotating piece is hinged to the second rotating piece, and a guide part is arranged at the end, away from the second rotating piece, of the first rotating piece and is in sliding fit with the first sliding groove. According to the hinge device, a hollowed-out structure used for being matched with the first rotating part does not need to be arranged in the supporting plate, the strength of the supporting plate can be improved, the design strength requirement can be met by adopting the supporting plate with the small thickness, therefore, the space for arranging the cover plate with the larger thickness is provided, and the overall strength of the hinge device can be improved.

Description

Technical Field

[0001] This disclosure relates to the field of electronic technology, and in particular to a hinge device and an electronic device. Background Technology

[0002] In foldable phones, the hinge is a crucial component that enables the phone to switch between folded and unfolded states. Due to the increasingly thinner and lighter design of mobile phones, the internal space is constantly being compressed. As a result, only thinner hinge brackets and hinge covers can be used in the hinge mechanism, leading to lower hinge strength. When the phone is subjected to harsh conditions such as drops or localized impacts, the hinge mechanism is prone to damage. Utility Model Content

[0003] In view of this, the present disclosure provides a hinge device and an electronic device that can improve the strength of the hinge device.

[0004] Specifically, the following technical solutions are included:

[0005] In a first aspect, embodiments of this disclosure provide a hinge device, including a cover plate, a support plate, and at least two rotating components;

[0006] The cover plate is placed on the support plate, and the first surface of the cover plate and the second surface of the support plate form a first sliding groove. The two rotating components are respectively arranged on opposite sides of the support plate.

[0007] The rotating assembly includes a first rotating member and a second rotating member. One end of the first rotating member is hinged to the second rotating member, and a guide portion is provided at the other end of the first rotating member away from the second rotating member. The guide portion is slidably engaged with the first sliding groove.

[0008] In some embodiments of this disclosure, the rotating assembly further includes a third rotating member and a synchronizing gear, the third surface of the cover plate and the fourth surface of the support plate forming an accommodating space, one end of the third rotating member being slidably connected to the second rotating member, and the other end of the third rotating member and the synchronizing gear being located within the accommodating space;

[0009] The other end of the third rotating component is provided with a gear surface that meshes with the synchronous gear, and the synchronous gears of the two rotating components mesh with each other. When the hinge device rotates, the third rotating component of one rotating component can transmit power to the third rotating component of the other rotating component through the gear surface and the synchronous gear, thereby realizing the synchronous rotation of the rotating components on both sides of the support plate. The accommodating space is directly set between the support plate and the cover plate, reducing the space occupied by the accommodating space, thereby achieving a thicker cover plate and support plate, which is beneficial to increasing the overall strength of the hinge device.

[0010] In some embodiments of this disclosure, the fourth surface is provided with a first limiting groove, the cover plate covers the first limiting groove, and the gear shaft of the synchronous gear is located within the first limiting groove. Because the rotation trajectories of the second rotating member and the third rotating member are different, the second rotating member will slide relative to the third rotating member, thereby dynamically adjusting the angle of support provided to the flexible screen.

[0011] In some embodiments of this disclosure, the gear shaft is slidably engaged with the cover plate and the inner wall of the first limiting groove, respectively, and the first limiting groove is coated with lubricant. The gear shaft is rotatable within the first limiting groove, which provides support for the synchronizing gear.

[0012] In some embodiments of this disclosure, the second rotating member is provided with a second sliding groove, and one end of the third rotating member slides in engagement with the second sliding groove. Lubricant can reduce the friction between the gear shaft and the inner wall of the cover plate and the first limiting groove, thereby improving the service life of the hinge device.

[0013] In some embodiments of this disclosure, the first surface is an arcuate surface recessed towards one side of the cover plate, and the second surface is an arcuate surface protruding towards one side of the cover plate. The opposite sides of the guide portion slide in cooperation with the first surface and the second surface, respectively. During the unfolding or folding of the hinge device, the first rotating member rotates relative to the cover plate and the support plate, and the guide portion gradually moves out of or into the first sliding groove, thereby changing the distance between the second rotating member and the support plate.

[0014] In some embodiments of this disclosure, the second surface is provided with a protrusion, and the guide portion is provided with a second limiting groove on the side near the support plate, with the protrusion located within the second limiting groove. The protrusion slides within the second limiting groove, thereby providing guidance for the guide portion when the first rotating member rotates, improving the stability of the hinge device during rotation.

[0015] In some embodiments of this disclosure, the rotating assembly further includes a fourth rotating member, the opposite sides of which are hinged to the first rotating member and the second rotating member, respectively. The fourth rotating member is used to adjust the angle of the second rotating member relative to the first rotating member, thereby adjusting the angle to provide support for the flexible screen.

[0016] In some embodiments of this disclosure, the rotating assembly further includes a floating plate, which is rotatably connected to the side of the second rotating member near the support plate. The floating plate is used to connect to the flexible screen, and during the rotation of the hinge device, the floating plate can adjust the angle of the flexible screen, thereby realizing the flattening or folding of the flexible screen.

[0017] In some embodiments of this disclosure, the support plate is provided with a plurality of positioning holes, and the cover plate is provided with a plurality of positioning posts on the side near the support plate, the positioning posts being located within the positioning holes. The positioning posts and positioning holes are used to position the cover plate and the support plate, thereby improving the assembly accuracy of the hinge device.

[0018] Secondly, embodiments of this disclosure provide an electronic device including the hinge device described in any of the first aspects above.

[0019] The beneficial effects of the technical solutions provided in this disclosure include at least the following:

[0020] In the hinge device provided in this embodiment, the first surface of the cover plate and the second surface of the support plate together form a first sliding groove. The first sliding groove slides with the first rotating member, eliminating the need for a hollow structure inside the support plate to engage with the first rotating member. This reduces the complexity of the hinge device, increases the strength of the support plate, and lowers the production cost of the hinge device. Furthermore, the location of the first sliding groove between the cover plate and the support plate minimizes the impact on the strength of the support plate. A support plate of smaller thickness can meet the design strength requirements, thus providing space for a cover plate of greater thickness, which is beneficial for improving the overall strength of the hinge device. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram of a hinge device provided in an embodiment of this disclosure;

[0023] Figure 2 This is a partial cross-sectional schematic diagram of a hinge device provided in an embodiment of the present disclosure;

[0024] Figure 3 A partial schematic diagram of a hinge device provided in an embodiment of this disclosure;

[0025] Figure 4 This is a partial cross-sectional schematic diagram of a hinge device provided in an embodiment of the present disclosure;

[0026] Figure 5 This is a partial cross-sectional schematic diagram of a hinge device provided in an embodiment of the present disclosure;

[0027] Figure 6 A partial schematic diagram of a hinge device provided in an embodiment of this disclosure;

[0028] Figure 7 An exploded view of a hinge device provided in an embodiment of this disclosure.

[0029] The reference numerals in the figure are respectively:

[0030] 1-Cover plate; 2-Support plate; 3-Rotating assembly;

[0031] 101-First surface; 102-First sliding groove; 103-Third surface; 104-Accommodation space; 105-Positioning post; 201-Second surface; 202-Fourth surface; 203-First limiting groove; 204-Protrusion; 205-Positioning hole; 301-First rotating component; 302-Second rotating component; 303-Third rotating component; 304-Synchronous gear; 305-Gear shaft; 306-Fourth rotating component; 307-Floating plate;

[0032] 3011 - Guide section; 3012 - Second limiting groove; 3021 - Second sliding groove; 3031 - Gear surface.

[0033] The accompanying drawings have illustrated specific embodiments of this disclosure, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this disclosure to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0034] The technical solutions of the embodiments of this disclosure 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 disclosure. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0035] Figure 1 A schematic diagram of a hinge device provided in an embodiment of this disclosure; Figure 2 This is a partial cross-sectional schematic diagram of a hinge device provided in an embodiment of this disclosure. Figure 1-2 As shown, the hinge device provided in this embodiment includes a cover plate 1, a support plate 2, and at least two rotating components 3. The cover plate 1 covers the support plate 2, and the first surface 101 of the cover plate 1 and the second surface 201 of the support plate 2 form a first sliding groove 102. The two rotating components 3 are respectively disposed on opposite sides of the support plate 2. The rotating components 3 include a first rotating member 301 and a second rotating member 302. One end of the first rotating member 301 is hinged to the second rotating member 302, and the other end of the first rotating member 301 away from the second rotating member 302 is provided with a guide portion 3011, which slides in cooperation with the first sliding groove 102.

[0036] In the hinge device provided in this embodiment, the first surface 101 of the cover plate 1 and the second surface 201 of the support plate 2 together form a first sliding groove 102. The first sliding groove 102 slides in cooperation with the guide portion 3011 of the first rotating member 301. This eliminates the need for a hollow structure inside the support plate 2 to cooperate with the first rotating member 301, reducing the complexity of the hinge device, increasing the strength of the support plate 2, and lowering the production cost of the hinge device. Furthermore, the location of the first sliding groove 102 between the cover plate 1 and the support plate 2 reduces the impact on the strength of the support plate 2. A smaller thickness support plate 2 can meet the design strength requirements, thus providing space for a thicker cover plate 1, which is beneficial for improving the overall strength of the hinge device.

[0037] To make the technical solutions and advantages of this disclosure clearer, the embodiments of this disclosure will be described in further detail below with reference to the accompanying drawings.

[0038] like Figure 1 As shown, the hinge device provided in this embodiment includes a cover plate 1, a support plate 2, and at least two rotating components 3. The two rotating components 3 are located on opposite sides of the support plate 2 and are rotatably connected to the support plate 2, thereby enabling the unfolding or folding of the flexible screen. See also... Figure 2 The rotating assembly 3 includes a first rotating member 301 and a second rotating member 302. One end of the first rotating member 301 is hinged to the second rotating member 302, and the other end of the first rotating member 301 is provided with a guide portion 3011. The cover plate 1 has a first surface 101, and the support plate 2 has a second surface 201 opposite to the first surface 101. The first surface 101 and the second surface 201 together form a first sliding groove 102. The guide portion 3011 is located in the first sliding groove 102 and slides in cooperation with the first sliding groove 102. Since the first sliding groove 102 is provided between the cover plate 1 and the support plate 2, there is no need to provide a structure inside the support plate 2 that slides in connection with the guide portion 3011, which is beneficial to increasing the strength of the support plate 2. Moreover, by providing the first sliding groove 102 between the cover plate 1 and the support plate 2, the influence of the first sliding groove 102 on the strength of the support plate 2 can be reduced. A support plate 2 with a smaller thickness can meet the design strength requirements, thereby providing space for a thicker cover plate 1, which is beneficial to improving the overall strength of the hinge device.

[0039] Figure 3 A partial schematic diagram of a hinge device provided in an embodiment of this disclosure; Figure 4 This is a partial cross-sectional schematic diagram of a hinge device provided in an embodiment of this disclosure. In some embodiments of this disclosure, such as... Figure 2-4As shown, the rotating assembly 3 also includes a third rotating member 303 and a synchronous gear 304. The third surface 103 of the cover plate 1 and the fourth surface 202 of the support plate 2 form a receiving space 104. One end of the third rotating member 303 is slidably connected to the second rotating member 302, and the other end of the third rotating member 303 and the synchronous gear 304 are located within the receiving space 104. The other end of the third rotating member 303 is provided with a gear surface 3031 that meshes with the synchronous gear 304. The synchronous gears 304 of the two rotating assemblies 3 mesh with each other. When the hinge device rotates, the third rotating member 303 of one rotating assembly 3 can be transmitted to the third rotating member 303 of the other rotating assembly 3 through the gear surface 3031 and the synchronous gear 304, thereby realizing the synchronous rotation of the rotating assemblies 3 on both sides of the support plate 2. Moreover, the receiving space 104 is directly set between the support plate 2 and the cover plate 1, avoiding the need to place the receiving space 104 inside the support member 2 and occupy too much space, thus achieving a thicker cover plate 1 and support plate 2, which is beneficial to increasing the overall strength of the hinge device.

[0040] In some embodiments of this disclosure, such as Figure 4 As shown, the second rotating member 302 is provided with a second sliding groove 3021, and one end of the third rotating member 303 is slidably engaged with the second sliding groove 3021. When the rotating assembly 3 rotates relative to the support plate 2, since the rotation trajectories of the second rotating member 302 and the third rotating member 303 are different, the second rotating member 302 will slide relative to the third rotating member 303, thereby dynamically adjusting the angle of support provided to the flexible screen.

[0041] Figure 5 This is a partial cross-sectional schematic diagram of a hinge device provided in an embodiment of this disclosure. In some embodiments of this disclosure, such as... Figure 5 As shown, the fourth surface 202 is provided with a first limiting groove 203, the cover plate 1 covers the first limiting groove 203, and the gear shaft 305 of the synchronous gear 304 is located in the first limiting groove 203, and the gear shaft 305 can rotate within the first limiting groove 203. For example, at least four first limiting grooves 203 can be provided, with two first limiting grooves 203 located at both ends of one synchronous gear 304, and the other two first limiting grooves 203 located at both ends of another synchronous gear 304, thereby providing structural support for the two synchronous gears 304.

[0042] In some embodiments of this disclosure, see Figure 5The gear shaft 305 slides in contact with the inner walls of the cover plate 1 and the first limiting groove 203, respectively. The first limiting groove 203 is coated with lubricant. When the synchronous gear 304 rotates, friction occurs between the gear shaft 305 and the cover plate 1 and the inner wall of the first limiting groove 203. The lubricant can reduce the friction between the gear shaft 305 and the cover plate 1 and the inner wall of the first limiting groove 203, thus extending the service life of the hinge device.

[0043] Figure 6 This is a partial schematic diagram of a hinge device provided in an embodiment of this disclosure. In some embodiments of this disclosure, such as... Figure 2 and 6 As shown, the first surface 101 is a concave arc surface facing the cover plate 1, and the second surface 201 is a protruding arc surface facing the cover plate 1. The two opposite surfaces of the guide portion 3011 are slidably engaged with the first surface 101 and the second surface 201, respectively. The shape of the first surface 101 matches the shape of the second surface 201. The guide portion 3011 is clamped and slidably engaged between the first surface 101 and the second surface 201. During the process of the hinge device gradually switching from the unfolded state to the folded state, the first rotating member 301 rotates relative to the cover plate 1 and the support plate 2, and the guide portion 3011 gradually moves out of the first sliding groove 102. During the process of the hinge device gradually switching from the folded state to the unfolded state, the first rotating member 301 rotates relative to the cover plate 1 and the support plate 2, and the guide portion 3011 gradually moves into the first sliding groove 102, thereby changing the distance between the second rotating member 302 and the support plate 2.

[0044] Optionally, see Figure 2 and 6 The second surface 201 is provided with a protrusion 204, and the guide portion 3011 is provided with a second limiting groove 3012 on the side near the support plate 2, with the protrusion 204 located in the second limiting groove 3012. The protrusion 204 and the second limiting groove 3012 slide in each other, thereby enhancing the motion stability of the guide portion 3011 during the rotation of the first rotating member 301.

[0045] Figure 7 An exploded view of a hinge device provided in an embodiment of this disclosure. In some embodiments of this disclosure, such as... Figure 7 As shown, the rotating assembly 3 also includes a fourth rotating member 306, whose opposite sides are hinged to the first rotating member 301 and the second rotating member 302, respectively. The fourth rotating member 306 is used to adjust the angle of the second rotating member 302 relative to the first rotating member 301, thereby adjusting the support angle of the flexible screen.

[0046] In some embodiments of this disclosure, such as Figure 7As shown, the rotating assembly 3 also includes a floating plate 307, which is rotatably connected to the side of the second rotating member 302 near the support plate 2. The floating plate 307 is used to connect with the flexible screen. During the rotation of the hinge device, the floating plate 307 can adjust the angle of the flexible screen, thereby realizing the flattening or folding of the flexible screen.

[0047] Optionally, such as Figure 7 As shown, the support plate 2 is provided with multiple positioning holes 205, and the cover plate 1 is provided with multiple positioning posts 105 on the side near the support plate 2, with the positioning posts 105 located within the positioning holes 205. The positioning posts 105 and positioning holes 205 are used to position the cover plate 1 and the support plate 2, thereby improving the assembly accuracy of the hinge device.

[0048] It should be noted that the cover plate 1 and support plate 2 described above can be made of metal and connected by welding the positioning post 105 to the positioning hole 205. Alternatively, the cover plate 1 and support plate 2 can also be connected by bolts, and this embodiment is not specifically limited here.

[0049] Furthermore, the aforementioned cover plate 1 and support plate 2 can be processed by metal injection molding, which has high processing precision and is suitable for mass production, thus helping to reduce the production cost of the hinge device.

[0050] Furthermore, this disclosure also provides an electronic device that includes any of the hinge devices described in the above embodiments.

[0051] In the electronic device provided in this embodiment, the first surface 101 of the cover plate 1 and the second surface 201 of the support plate 2 together form a first sliding groove 102. The first sliding groove 102 slides in cooperation with the guide portion 3011 of the first rotating member 301. This eliminates the need for a hollow structure inside the support plate 2 to cooperate with the first rotating member 301, thus increasing the strength of the support plate 2. Furthermore, the location of the first sliding groove 102 between the cover plate 1 and the support plate 2 reduces the impact on the strength of the support plate 2. A support plate 2 with a smaller thickness can meet the design strength requirements, thereby providing space for a cover plate 1 with a larger thickness, which is beneficial for improving the overall strength of the hinge device.

[0052] It should be noted that the electronic device provided in this disclosure embodiment may be, but is not limited to, a remote control, a tablet computer, an MP3 player (Moving Picture Experts Group Audio Layer III), an MP4 player (Moving Picture Experts Group Audio Layer IV), a laptop computer, or other electronic devices with a foldable screen. This electronic device may also be referred to as a user device, a portable terminal, a laptop terminal, or other similar names.

[0053] It should be noted that in this article, "several" and "at least one" refer to one or more, while "multiple" and "at least two" refer to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0054] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0055] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0056] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0057] In the description of this specification, the references to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" refer to specific features, structures, materials, or characteristics described in connection with the embodiments or examples that are included in at least one embodiment or example of this disclosure.

[0058] The above description is merely an embodiment of this disclosure and is not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. A hinge device, characterized in that, It includes a cover plate (1), a support plate (2), and at least two rotating components (3); The cover plate (1) is placed on the support plate (2). The first surface (101) of the cover plate (1) and the second surface (201) of the support plate (2) form a first sliding groove (102). The two rotating components (3) are respectively arranged on opposite sides of the support plate (2). The rotating assembly (3) includes a first rotating member (301) and a second rotating member (302). One end of the first rotating member (301) is hinged to the second rotating member (302). The other end of the first rotating member (301) away from the second rotating member (302) is provided with a guide portion (3011). The guide portion (3011) is slidably engaged with the first sliding groove (102).

2. The hinge device according to claim 1, characterized in that, The rotating assembly (3) further includes a third rotating member (303) and a synchronizing gear (304). The third surface (103) of the cover plate (1) and the fourth surface (202) of the support plate (2) form a receiving space (104). One end of the third rotating member (303) is slidably connected to the second rotating member (302), and the other end of the third rotating member (303) and the synchronizing gear (304) are located in the receiving space (104). The other end of the third rotating component (303) is provided with a gear surface (3031) that meshes with the synchronous gear (304), and the synchronous gears (304) of the two rotating components (3) mesh with each other.

3. The hinge device according to claim 2, characterized in that, The fourth surface (202) is provided with a first limiting groove (203), the cover plate (1) covers the first limiting groove (203), and the gear shaft (305) of the synchronous gear (304) is located in the first limiting groove (203).

4. The hinge device according to claim 3, characterized in that, The gear shaft (305) is slidably engaged with the inner walls of the cover plate (1) and the first limiting groove (203), respectively, and the first limiting groove (203) is coated with lubricant.

5. The hinge device according to claim 2, characterized in that, The second rotating member (302) is provided with a second sliding groove (3021), and one end of the third rotating member (303) is slidably engaged with the second sliding groove (3021).

6. The hinge device according to any one of claims 1 to 4, characterized in that, The first surface (101) is an arc surface that is recessed toward the cover plate (1), and the second surface (201) is an arc surface that protrudes toward the cover plate (1). The two opposite surfaces of the guide portion (3011) are respectively in sliding engagement with the first surface (101) and the second surface (201).

7. The hinge device according to claim 6, characterized in that, The second surface (201) is provided with a protrusion (204), and the guide portion (3011) is provided with a second limiting groove (3012) on the side near the support plate (2), and the protrusion (204) is located in the second limiting groove (3012).

8. The hinge device according to claim 6, characterized in that, The rotating assembly (3) further includes a fourth rotating member (306), the opposite sides of which are hinged to the first rotating member (301) and the second rotating member (302), respectively.

9. The hinge device according to any one of claims 1 to 4, characterized in that, The rotating assembly (3) further includes a floating plate (307), which is rotatably connected to the side of the second rotating member (302) near the support plate (2).

10. The hinge device according to any one of claims 1 to 4, characterized in that, The support plate (2) is provided with a plurality of positioning holes (205), and the cover plate (1) is provided with a plurality of positioning posts (105) on the side close to the support plate (2), and the positioning posts (105) are located in the positioning holes (205).

11. An electronic device, characterized in that, Includes the hinge device as described in any one of claims 1 to 10.

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