Electronic equipment accessory

Abstract

The utility model provides an electronic equipment accessory which comprises a main body, a support and a differential structure, the support can rotate relative to the main body through the differential structure, the differential structure comprises a first shaft, a second shaft and a differential module, the first shaft is fixedly connected with the main body, the second shaft is fixedly connected with the support, and the differential module comprises a first differential part, a second differential part and a differential transmission part. The first differential part is fixedly arranged on the first shaft so as to be fixed relative to the main body, the second differential part is fixedly arranged on the second shaft so as to rotate along with the support, and the differential transmission part is movably connected between the first differential part and the second differential part and can drive the second differential part to revolve along the circumferential face of the first differential part. And the second differential part drives the second shaft to perform height lifting, so that the support is lifted while rotating, interference between the support and the main body in the rotating process can be effectively avoided, the normal rotating angle range of the support is guaranteed, and good product experience is brought to a user.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of peripheral accessories of electronic products, and particularly relates to an electronic device accessory. BACKGROUND

[0002] An existing electronic device accessory, such as a support protective shell, achieves support by arranging a support on the protective shell. The support is generally connected to the protective shell and other electronic device accessories through a rotating shaft structure, so that the support can rotate relative to the protective shell to achieve the effect of supporting the electronic device accessory. In order to realize the storage of the support, a storage groove is arranged on the protective shell, and the support is rotatably connected to the storage groove through the rotating shaft structure. After the support is stored in the storage groove, the support needs to be prevented from protruding on the protective shell.

[0003] A common rotating shaft structure is, for example, a hinge structure. A traditional hinge structure is generally composed of a first hinge, a rotating shaft and a second hinge. The first hinge is fixedly connected to the support, the second hinge is fixedly connected to the protective shell, and the first hinge and the second hinge are rotatably connected to the rotating shaft, so that the support can rotate relative to the protective shell through the hinge structure. However, when the support is rotated to open, the support will interfere with the side wall of the storage groove due to the restriction of the stop surface or stop portion on the side wall of the storage groove. At this time, the support cannot continue to rotate relative to the protective shell, so that the opening angle of the support is limited and cannot meet the use requirement.

[0004] Therefore, it is necessary to improve the structure of the existing electronic device accessory to solve the above problems. SUMMARY

[0005] Therefore, the present application provides an electronic device accessory which can effectively solve the above problems.

[0006] The present application provides an electronic device accessory, which comprises a main body, a support and a differential structure. The support can rotate relative to the main body through the differential structure. The differential structure comprises a first shaft, a second shaft and a differential module. The first shaft is fixedly connected to the main body. The second shaft is fixedly connected to the support. The differential module comprises a first differential part, a second differential part and a differential transmission part. The first differential part is fixedly arranged on the first shaft to be fixed relative to the main body. The second differential part is fixedly arranged on the second shaft to rotate with the support. The differential transmission part is movably connected between the first differential part and the second differential part, and the differential transmission part can drive the second differential part to revolve along the peripheral surface of the first differential part.

[0007] In an embodiment, the first differential gear is a fixed gear, the second differential gear is a movable gear, and the differential transmission gear is a transmission gear; the transmission gear is engaged between the fixed gear and the movable gear, and / or the transmission ratio of the movable gear to the fixed gear is between 1:2 and 1:4.

[0008] In an embodiment, the movable gear comprises an axle and a plurality of movable teeth arranged on the outer surface of the axle; the axle is a part of the second shaft; the movable teeth are engaged with the transmission teeth of the transmission gear.

[0009] In an embodiment, the fixed gear comprises a fixed gear sleeve and a plurality of fixed teeth arranged on the outer surface of the fixed gear sleeve; the fixed teeth are engaged with the transmission teeth of the transmission gear; the fixed gear sleeve is sleeved on the first shaft, and the fixed gear sleeve is fixedly connected with the first shaft.

[0010] In an embodiment, the number of fixed teeth is 3 to 9; 3 to 9 fixed teeth are sequentially arranged adjacent to each other, and / or 3 to 9 fixed teeth are arranged on one side of the fixed gear sleeve close to the transmission gear and close to the bracket, and / or the number of fixed teeth is an odd number.

[0011] In an embodiment, when the bracket is in the storage state, the axial height of the transmission gear is lower than the axial height of the fixed gear, and the axial height of the transmission gear is lower than the axial height of the movable gear; and / or the diameter of the movable gear is smaller than the diameter of the fixed gear, and the number of teeth of the movable gear is greater than the number of teeth of the fixed gear.

[0012] In an embodiment, the first differential gear comprises a first track, the second differential gear comprises a second track, and the differential transmission gear comprises a transmission base, a first protrusion and a second protrusion; the transmission base is clamped between the first shaft and the second shaft; the first protrusion and the second protrusion are arranged on opposite sides of the transmission base respectively; the first protrusion is slidably fitted in the first track, and the second protrusion is slidably fitted in the second track.

[0013] In an embodiment, the first track extends helically along the circumference of the first shaft in the axial direction of the first shaft, and the second track extends helically along the circumference of the second shaft in the axial direction of the second shaft.

[0014] In an embodiment, the slope of the first track is smaller than the slope of the second track; and / or the slope ratio of the first track to the second track is between 1:2 and 1:4; and / or the first track extends clockwise helically, and the second track extends counterclockwise helically, or the first track extends counterclockwise helically, and the second track extends clockwise helically.

[0015] In an embodiment, the first differential further comprises a first ring, the first ring being sleeved outside the first shaft and fixedly connected with the first shaft, and the first track being arranged on a surface of the first ring; and / or, the second differential further comprises a second ring, the second ring being sleeved outside the second shaft and fixedly connected with the second shaft, and the second track being arranged on a surface of the second ring.

[0016] In an embodiment, opposite sides of the transmission base are respectively provided with a first recess and a second recess, the first recess being shaped to fit the first ring, the second recess being shaped to fit the second ring, the first protrusion being arranged in the first recess, and the second protrusion being arranged in the second recess.

[0017] In an embodiment, the differential structure comprises two first limiting seats, the first shaft and the second shaft being rotatably inserted into the two first limiting seats, and the differential module being clamped between the two first limiting seats.

[0018] In an embodiment, the differential transmission member is movably connected to the first limiting seat; and / or, the first limiting seat is fixed with the first shaft in an axial direction of the first shaft, and the first limiting seat is fixed with the second shaft in an axial direction of the second shaft; and / or, the differential transmission member is movably arranged between the two first limiting seats, the differential transmission member being movable from one of the first limiting seats towards the other first limiting seat, and a distance of movement of the differential transmission member being proportional to an angle of rotation of the bracket.

[0019] In an embodiment, the differential structure comprises a damping member, the first shaft and the second shaft being rotatably connected to the damping member.

[0020] In an embodiment, the damping member is provided with a first connecting hole and a second connecting hole, the first shaft being rotatably connected to the first connecting hole, and the second shaft being rotatably connected to the second connecting hole; the damping member is further provided with a first opening and a second opening, the first opening being in communication with the first connecting hole and the outside, and the second opening being in communication with the second connecting hole and the outside.

[0021] In an embodiment, the differential structure further comprises a second limiting seat, the first shaft and the second shaft being rotatably inserted into the second limiting seat, the second limiting seat being located at an end of the damping member away from the differential module.

[0022] In an embodiment, the electronic device accessory further comprises a sleeve, the sleeve being sleeved outside the differential structure.

[0023] In an embodiment, the first shaft is connected with the main body through a first connecting member, the first connecting member comprises a first fixed part and a first shaft connecting part connected to one end of the first fixed part, the first fixed part is fixedly connected with the main body, and the first shaft connecting part is fixedly connected with the first shaft; and / or the second shaft is connected with the support through a second connecting member, the second connecting member comprises a second fixed part and a second shaft connecting part connected to one end of the second fixed part, the second fixed part is fixedly connected with the support, and the second shaft connecting part is fixedly connected with the second shaft.

[0024] In an embodiment, the main body is provided with a receiving part, the differential structure is arranged in the receiving part, and when the support is in the receiving state, the support is located in the receiving part and shields the differential structure.

[0025] In an embodiment, the main body comprises a base, the base is arranged in the receiving part, the differential structure is connected between the support and the base, the first shaft is fixedly connected with the base, and the first differential member is fixed relative to the base.

[0026] In an embodiment, the base and / or the support is provided with a avoiding connecting position, and the differential structure is installed in the avoiding connecting position.

[0027] In summary, the electronic device accessory provided by the present application comprises a main body, a support and a differential structure, the support can rotate relative to the main body through the differential structure, the differential structure comprises a first shaft, a second shaft and a differential module, the first shaft is fixedly connected with the main body, the second shaft is fixedly connected with the support, the differential module comprises a first differential member, a second differential member and a differential transmission member, the first differential member is fixedly arranged on the first shaft to be fixed relative to the main body, the second differential member is fixedly arranged on the second shaft to rotate with the support, the differential transmission member is movably connected between the first differential member and the second differential member, and the differential transmission member can drive the second differential member to revolve around the circumferential surface of the first differential member, the second differential member drives the second shaft to be lifted in height, thereby realizing the rotation and height lifting of the support at the same time, effectively avoiding the interference between the support and the main body during the rotation of the support, ensuring the normal rotation angle range of the support and bringing good product experience to the user. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 FIG. 1 is a perspective view of an electronic device accessory in a closed state according to a first embodiment of the present application.

[0029] Figure 2 FIG. 2 is a perspective view of the electronic device accessory in an open state according to the first embodiment of the present application. Figure 1

[0030] Figure 3 FIG. 3 is a perspective view of the electronic device accessory in an open state according to a second embodiment of the present application.​Figure 2 Perspective view of the stand, differential structure and base.

[0031] Figure 4 To Figure 3 Exploded view of the stand, differential structure and base.

[0032] Figure 5 To Figure 2 Exploded view of the differential structure.

[0033] Figure 6 To Figure 1 Side view of the differential structure with the stand in the closed position.

[0034] Figure 7 To Figure 1 Side view of the stand for electronic equipment accessories in the present application when the stand is opened 12.5 degrees.

[0035] Figure 8 To Figure 1 Side view of the stand for electronic equipment accessories in the present application when the stand is opened 50 degrees.

[0036] Figure 9 To Figure 1 Side view of the stand for electronic equipment accessories in the present application when the stand is opened 75 degrees.

[0037] Figure 10 To Figure 1 Side view of the stand for electronic equipment accessories in the present application when the stand is opened 150 degrees.

[0038] Figure 11 To Figure 1 Side view of the stand for electronic equipment accessories in the present application when the stand is opened 180 degrees.

[0039] Figure 12 To Exploded view of the differential structure for electronic equipment accessories in the second embodiment of the present application at one angle.

[0040] Figure 13 Figure 12 To Exploded view of the differential structure for electronic equipment accessories in the second embodiment of the present application at another angle.

[0041] Figure 14 Figure 12 To Perspective view of the differential structure for electronic equipment accessories in the second embodiment of the present application with the outer cover removed. DETAILED DESCRIPTION

[0042] Before describing the embodiments in detail, it should be understood that the present application is not limited to the detailed structure or component arrangement described below or in the accompanying drawings in this application. The present application may be an embodiment implemented in other ways. Moreover, it should be understood that the words and terms used herein are for descriptive purposes only and should not be interpreted restrictively. The words "including", "comprising", "having" and similar words used herein are intended to include the matters listed thereafter, their equivalents and other additional matters. In particular, when describing "a certain element", the present application does not limit the number of the element to one, but may also include multiple elements.

[0043] Please also refer to Figures 1 to 14 As shown, the present application provides an electronic device accessory 10, which includes a main body 12, a bracket 14 and a differential structure. The bracket 14 can rotate relative to the main body 12 through the differential structure. The differential structure includes a first shaft 16, a second shaft 18 and a differential module. The first shaft 16 is fixedly connected to the main body 12, and the second shaft 18 is fixedly connected to the bracket 14. The differential module includes a first differential member, a second differential member and a differential transmission member. The first differential member is fixedly arranged on the first shaft 16 to be fixed relative to the main body 12, and the second differential member is fixedly arranged on the second shaft 18 to rotate with the bracket 14. The differential transmission member is movably connected between the first differential member and the second differential member, and the differential transmission member can drive the second differential member to revolve along the circumference of the first differential member. When the bracket 14 rotates relative to the main body 12, the bracket 14 drives the second differential to rotate with it. The rotation of the second differential drives the differential drive member, which in turn drives the first differential to rotate. Since the first differential is stationary, the first differential applies a reverse rotational force to the differential drive member, causing the differential drive member to revolve around the circumference of the first differential member and driving the second differential to revolve around the circumference of the first differential member. Since the first differential member is fixedly connected to the first shaft 16, the first shaft 16 is fixedly connected to the main body 12, and the second differential member is fixedly connected to the second shaft 18, which is fixedly connected to the bracket 14, the differential drive member drives the second shaft 18 to rotate relative to the first shaft 16. That is, as the bracket 14 opens and rotates relative to the main body 12, the bracket 14 as a whole revolves around the second shaft 18, causing the bracket 14 to rise in height.

[0044] The first shaft 16 is fixedly connected with the main body 12, for example, the first shaft 16 and the main body 12 are connected through irregular structures to achieve rotation limiting, for example, two ends of the first shaft 16 are respectively provided with irregular structures formed by two opposite planes and two opposite arc surfaces, the main body 12 is correspondingly provided with a connecting hole structure with an adaptive shape, and the two ends of the first shaft 16 are respectively connected to the corresponding connecting holes; in other embodiments, the first shaft 16 can also be directly fixedly connected with the main body 12, for example, by means of integrated connection through processes such as sleeving, injection molding and the like. Similarly, the second shaft 18 is fixedly connected with the support 14, for example, the second shaft 18 and the support 14 are connected through irregular structures to achieve rotation limiting, for example, two ends of the second shaft 18 are respectively provided with irregular structures formed by two opposite planes and two opposite arc surfaces, the support 14 is correspondingly provided with a connecting hole structure with an adaptive shape, and the two ends of the second shaft 18 are respectively connected to the corresponding connecting holes; in other embodiments, the second shaft 18 can also be directly fixedly connected with the support 14, for example, by means of integrated connection through processes such as sleeving, injection molding and the like.

[0045] The first differential member is fixedly connected with the first shaft 16, and the second differential member is fixedly connected with the second shaft 18, and the differential module is realized by the speed difference between the first differential member and the second differential member to realize the revolution of the second shaft 18 relative to the first shaft 16 while the second shaft 18 rotates. Specifically, when the support 14 rotates relative to the main body 12, the second shaft 18 is driven to rotate, the second differential member is driven to rotate by the second differential member, and the first differential member is driven to rotate by the differential transmission member, but the first differential member is fixedly connected with the first shaft 16, so that the first differential member cannot rotate, which causes the differential transmission member to rotate around the first shaft 16, thereby driving the second shaft 18 to revolve relative to the first shaft 16 while rotating, thereby realizing the lifting of the height of the second shaft 18, and further lifting the height of the support 14, which can effectively avoid the interference between the support 14 and the main body 12 during rotation, ensure the normal rotation angle range of the support 14, and bring good product experience to the user.

[0046] In the present application, the main body 12 can be a protective shell, a mobile power supply, a charger or a card bag, etc. In the present embodiment, the main body 12 is a protective shell, specifically, the main body 12 includes a back plate 20 and a side frame (not shown in the figure) connected to the periphery of the back plate 20, the back plate 20 and the side frame enclose a containing cavity for accommodating an electronic device, for example, a mobile phone, a tablet computer, etc., and the support 14 is rotatably connected to the side of the back plate 20 away from the containing cavity through the differential structure.

[0047] In the shown embodiment, the support 14 is a circular ring structure, and in other embodiments, the support 14 can also be designed as other shapes. The back plate 20 is provided with a circular ring-shaped receiving portion 22 at the central part of the side away from the accommodating cavity, the receiving portion 22 is a groove structure, the differential structure is arranged in the receiving portion 22, and when the support 14 is in the receiving state, the support 14 is located in the receiving portion 22 and covers the differential structure, for example, the support 14 completely covers the differential structure, and the differential structure cannot be seen from the outside when the support 14 is received, so that the differential structure is hidden, and the product appearance is improved. Specifically, the support 14 can rotate relative to the back plate 20 between the receiving position and the supporting position. In the receiving position, the support 14 is received in the receiving portion 22, at this time, the outer surface of the support 14 is flush with the outer surface of the back plate 20, or the outer surface of the support 14 is lower than the outer surface of the back plate 20; in the supporting position, the support 14 is turned away from the receiving portion 22 and forms a preset supporting angle with the back plate 20, so as to support the main body 12 to stand up.

[0048] Preferably, the main body 12 comprises a base 24 arranged in the receiving portion 22, the differential structure is connected between the support 14 and the base 24, the first shaft 16 is fixedly connected with the base 24, and the first differential part is fixedly connected with the first shaft 16 to be fixed relative to the base 24. In this embodiment, the base 24 is rotatably connected to the receiving portion 22, so that the support 14 can rotate relative to the back plate 20 about an axis perpendicular to the back plate 20, thereby realizing multi-angle and multi-directional support of the support 14. Optionally, an axial limiting structure, for example, a convex and groove structure, is arranged between the base 24 and the receiving portion 22, which limits the movement of the base 24 in the direction perpendicular to the back plate 20, so that the base 24 can only rotate relative to the back plate 20, avoiding the base 24 from being separated from the receiving portion 22. In other embodiments, the base 24 can be fixedly connected with the receiving portion 22, so that the support 14 can only rotate between the receiving position and the supporting position.

[0049] Further, the base 24 and the support 14 correspondingly have avoiding connection positions for the differential structure, wherein the first avoiding connection position 26 of the base 24 is an opening structure, and the second avoiding connection position 28 of the support 14 is a groove structure on the side of the support 14 close to the receiving portion 22, and the differential structure is arranged between the first avoiding connection position 26 and the second avoiding connection position 28. In this way, on the one hand, the differential structure can be avoided to reduce the thickness of the main body 12, so that the product can be made thinner, and on the other hand, when the support 14 is in the receiving position, the differential structure can be completely hidden below the support 14, and the differential structure cannot be seen from the outside, thereby improving the appearance of the product.

[0050] The first shaft 16 is fixedly connected with the main body 12, specifically, the first shaft 16 is connected with the base 24 through the first connecting piece 30, the first connecting piece 30 comprises a first fixed part 32 and a first shaft connecting part 34 connected to one end of the first fixed part 32, the first fixed part 32 is a sheet structure, the first shaft connecting part 34 is a block structure, the first connecting piece 30 is provided with two, and the two first connecting pieces 30 are respectively connected between the two ends of the first shaft 16 and the base 24. The base 24 is provided with a first connecting groove 36 at two ends of the first avoiding connecting position 26 respectively, the first connecting groove 36 is arranged on the surface of the side of the base 24 close to the support 14, the first fixed part 32 is fixedly connected in the first connecting groove 36, for example, the first fixed part 32 is fixedly connected in the first connecting groove 36 in a riveting manner, and the outside of the first fixed part 32 is provided with a first riveting gasket 38. The first shaft connecting part 34 is located in the first avoiding connecting position 26, the cross-sectional dimension of the first shaft connecting part 34 is greater than that of the first shaft 16, and the first shaft connecting part 34 is provided with a first shaft connecting hole at one end away from the first fixed part 32, and the end of the first shaft 16 is fixedly inserted into the first shaft connecting hole. The differential structure is clamped between the two first shaft connecting parts 34, which can play an axial limiting effect on the differential structure and prevent the differential structure from moving left and right in the axial direction.

[0051] The second shaft 18 is fixedly connected with the support 14, specifically, the second shaft 18 is connected with the support 14 through the second connecting piece 42, the second connecting piece 42 comprises a second fixed part 44 and a second shaft connecting part 46 connected to one end of the second fixed part 44, the second fixed part 44 is a sheet structure, the second shaft connecting part 46 is a block structure, the second connecting piece 42 is provided with two, and the two second connecting pieces 42 are respectively connected between the two ends of the second shaft 18 and the support 14. The support 14 is provided with a second connecting groove 48 at two ends of the second avoiding connecting position 28 respectively, the second connecting groove 48 is arranged on the surface of the side of the support 14 close to the base 24, the second fixed part 44 is fixedly connected in the second connecting groove 48, for example, the second fixed part 44 is fixedly connected in the second connecting groove 48 in a riveting manner, and the outside of the second fixed part 44 is provided with a second riveting gasket 50. The second shaft connecting part 46 is located in the second avoiding connecting position 28, the cross-sectional dimension of the second shaft connecting part 46 is greater than that of the second shaft 18, and the second shaft connecting part 46 is provided with a second shaft connecting hole at one end away from the second fixed part 44, and the end of the second shaft 18 is fixedly inserted into the second shaft connecting hole. The differential structure is clamped between the two second shaft connecting parts 46, which can play an axial limiting effect on the differential structure and prevent the differential structure from moving left and right in the axial direction.

[0052] The differential module can have a variety of structural designs to achieve that when the bracket 14 rotates relative to the main body 12, the differential transmission member drives the second shaft 18 to rotate relative to the first shaft 16, so as to raise the height of the bracket 14 and avoid interference between the bracket 14 and the side wall of the storage portion 22 during the rotation process. Two specific embodiments are listed below.

[0053] In such Figures 1-11 In the illustrated embodiment, the differential module is disposed adjacent to the first and second shaft connections 34, 46, which are located on the same side. In the differential module, the first differential member is a fixed gear 40, the second differential member is a movable gear 52, and the differential transmission member is a transmission gear 54, which meshes between the fixed gear 40 and the movable gear 52. The rotational speed of the movable gear 52 is lower than that of the fixed gear 40, i.e., the diameter of the movable gear 52 is smaller than that of the fixed gear 40, and the number of teeth of the movable gear 52 is greater than that of the fixed gear 40. Preferably, the transmission ratio between the movable gear 52 and the fixed gear 40 is between 1:2 and 1:4. In this embodiment, the transmission ratio between the movable gear 52 and the fixed gear 40 is set to 1:2.5. That is, when the movable gear 52 rotates 180 degrees, the fixed gear 40 rotates 72 degrees. Since the fixed gear 40 is stationary, the transmission gear 54 rotates 72 degrees along the circumference of the fixed gear 40, that is, climbs upward 72 degrees, and simultaneously drives the movable gear 52, the second shaft 18, and the bracket 14 to revolve relative to the first shaft 16, thereby lifting the bracket 14 upward and moving the connection portion away from the side wall of the storage portion 22, thereby preventing interference between the bracket 14 and the side wall of the storage portion 22 during rotation. In other embodiments, the transmission ratio between the movable gear 52 and the fixed gear 40 can be 1:3.

[0054] During the opening process of the bracket 14, the rotation of the bracket 14 relative to the main body 12 will drive the second shaft 18 to rotate, and the rotation of the second shaft 18 will drive the movable gear 52 to rotate. The movable gear 52 intends to drive the fixed gear 40 to rotate through the transmission gear 54, but the fixed gear 40 is fixedly connected to the first shaft 16, so the fixed gear 40 cannot rotate, causing the transmission gear 54 to rotate around the first shaft 16, thereby driving the second shaft 18 to revolve relative to the first shaft 16 while rotating, thereby raising the height of the second shaft 18 and keeping the second shaft 18 away from the side wall of the storage portion 22, thereby raising the height of the bracket 14 and keeping the connection part of the bracket 14 away from the side wall of the storage portion 22, which can effectively avoid interference between the bracket 14 and the main body 12 during the rotation process, ensure the normal rotation angle range of the bracket 14, and bring a good product experience to the user.

[0055] More specifically, the cogwheel 40 comprises a cog sleeve 56 and a plurality of cogs 58 arranged on the outer surface of the cog sleeve 56, the cogs 58 are engaged with the transmission teeth 60 of the transmission gear 54, the cog sleeve 56 is sleeved on the first shaft 16, and the cog sleeve 56 is fixedly connected with the first shaft 16. Since the transmission ratio of the cogwheel 40 and the pinwheel 52 is 1:2.5, more cogs 58 need to be designed on the cogwheel 40 to meet the transmission ratio. In this embodiment, six pin teeth 62 are designed on the pinwheel 52, so fifteen cogs 58 need to be designed on the cogwheel 40. At this time, the diameter of the cogs 58 needs to be increased to meet the arrangement of fifteen cogs 58. In order to avoid increasing the size of the differential module, the size of the first shaft 16 is fixed. Therefore, the method of sleeving the cogwheel 40 on the first shaft 16 can reduce the size of the differential module. The pinwheel 52 comprises a shaft and a plurality of pin teeth 62 arranged on the outer surface of the shaft. Optionally, the shaft is a part of the second shaft 18. The pin teeth 62 are engaged with the transmission teeth 60 of the transmission gear 54. This design can reduce the occupied space of the pinwheel 52, so that the volume of the entire differential module can be smaller, which is beneficial to make the support 14 and the differential structure thinner, and the support 14 will not protrude on the back plate 20.

[0056] Preferably, the number of cogs 58 can be set to 3 to 9, and the 3 to 9 cogs 58 are arranged adjacent to each other. The number of cogs 58 is an odd number, and the 3 to 9 cogs 58 are arranged on one side of the cog sleeve 56 close to the transmission gear 54 and close to the support 14. In this embodiment, the number of cogs 58 is set to 3, and the 3 cogs 58 are arranged adjacent to each other. The transmission gear 54 and the pinwheel 52 are both complete gear structures. Preferably, the 3 cogs 58 are arranged on one side of the cog sleeve 56 close to the transmission gear 54 and close to the support 14. Normally, 15 cogs 58 should be designed in the circumferential direction to ensure the transmission of the cogwheel 40. However, in the differential module structure of this embodiment, the transmission teeth 60 do not need to revolve 180 degrees along the cogwheel 40. The transmission teeth 60 only need to climb 72 degrees along the cogwheel 40. It is calculated that only 3 cogs 58 can meet the climbing of the transmission teeth 60 along the cogs 58 by 72 degrees. Removing the other cogs can reduce the thickness of the entire differential module to a certain extent, which is more beneficial to make the support 14 thinner. In other embodiments, according to the requirements of different product structures and use scenarios, the number of cogs 58 can also be set to more than 3.

[0057] Preferably, as shown in Figure 6 when the support 14 is in the storage position, the axial height of the transmission gear 54 is lower than the axial height of the cogwheel 40, and the axial height of the transmission gear 54 is lower than the axial height of the pinwheel 52. Further, the axial height of the pinwheel 52 and the axial height of the cogwheel 40 are on the same horizontal plane, Figure 6D1 is the horizontal line at the axis height of the movable gear 52 and the fixed gear 40, and D2 is the horizontal line at the axis height of the transmission gear 54. The height of D1 is greater than the height of D2. In some embodiments, the axis heights of the transmission gear 54, the fixed gear 40, and the movable gear 52 can be located on the same horizontal plane. When the axis heights of the transmission gear 54, the fixed gear 40, and the movable gear 52 are located on the same horizontal plane, due to the different sizes of the various gears, the three fixed teeth 58 need to be designed to be higher to facilitate meshing of the fixed teeth 58 with the transmission gear 54. The higher position of the fixed teeth 58 increases the thickness of the entire differential module. Therefore, setting the axis height of the transmission gear 54 lower than the axis heights of the fixed gear 40 and the movable gear 52 can reduce the thickness of the entire differential module to a certain extent.

[0058] In such Figures 12-14 In the illustrated embodiment, the differential module is arranged near the first shaft connection portion 34 and the second shaft connection portion 46 located on the same side. In the differential module, the first differential member includes a first track 64, which extends spirally along the circumference of the first shaft 16 in the axial direction of the first shaft 16, and the second differential member includes a second track 66, which extends spirally along the circumference of the second shaft 18 in the axial direction of the second shaft 18. Optionally, the first track 64 extends in a clockwise spiral and the second track 66 extends in a counterclockwise spiral, or the first track 64 extends in a counterclockwise spiral and the second track 66 extends in a clockwise spiral. The slope of the first track 64 is smaller than that of the second track 66. Preferably, the slope ratio of the first track 64 to the second track 66 is between 1:2 and 1:4. In this embodiment, the slope ratio of the first track 64 to the second track 66 is set to 1:3. That is, when the second shaft 18 rotates 180 degrees, the transmission base 68 drives the second shaft 18 to revolve 60 degrees relative to the first shaft 16, i.e., to climb 60 degrees. The differential transmission member includes a transmission base 68, a first protrusion 70, and a second protrusion 72. The transmission base 68 is clamped between the first shaft 16 and the second shaft 18. The first protrusion 70 and the second protrusion 72 are respectively disposed on opposite sides of the transmission base 68. The first protrusion 70 is slidably engaged within the first track 64, and the second protrusion 72 is slidably engaged within the second track 66.

[0059] More specifically, the first differential member further comprises a first annular sleeve 74, the first annular sleeve 74 being sleeved on the first shaft 16 and fixedly connected with the first shaft 16, and the first track 64 being arranged on the outer surface of the first annular sleeve 74; the second differential member further comprises a second annular sleeve 76, the second annular sleeve 76 being sleeved on the second shaft 18 and fixedly connected with the second shaft 18, and the second track 66 being arranged on the outer surface of the second annular sleeve 76. The transmission base 68 is provided with a first recess 78 and a second recess 80 on opposite sides, respectively, the first recess 78 being shape-fitted with the first annular sleeve 74, the second recess 80 being shape-fitted with the second annular sleeve 76, the first recess 78 and the second recess 80 being arc-shaped, for example, the first protrusion 70 being arranged in the first recess 78, and the second protrusion 72 being arranged in the second recess 80, and the two recesses of the transmission base 68 being attached to the outer surfaces of the first annular sleeve 74 and the second annular sleeve 76, respectively, during installation. In this embodiment, since the diameters of the first annular sleeve 74 and the second annular sleeve 76 are slightly larger than the diameters of the corresponding first shaft 16 and second shaft 18, the thickness of the differential module in this embodiment can be made smaller compared with the above-mentioned embodiment of the gear structure.

[0060] In this embodiment, when the support 14 rotates relative to the main body 12, the second shaft 18 and the second annular sleeve 76 are driven to rotate, and due to the transmission action between the second protrusion 72 and the second track 66, the rotation of the second shaft 18 drives the transmission base 68 to move in the length direction of the first shaft 16 or the second shaft 18, and due to the fact that the slope of the second track 66 is greater than the slope of the first track 64 and the transmission action between the first protrusion 70 and the first track 64, the first track 64 forms a resistance to the axial movement of the transmission base 68, which drives the transmission base 68 to revolve relative to the first shaft 16, i.e., to climb upward, and simultaneously drives the second shaft 18 to revolve and lift relative to the first shaft 16, in the process, the first protrusion 70 moves along the first track 64, and the second protrusion 72 moves along the second track 66, thereby achieving the lifting of the height of the second shaft 18 and the distancing of the second shaft 18 from the side wall of the receiving portion 22, and further achieving the lifting of the height of the support 14 and the distancing of the connection part of the support 14 from the side wall of the receiving portion 22, which can effectively avoid the interference between the support 14 and the main body 12 during rotation, ensure the normal rotation angle range of the support 14, and bring good product experience to the user.

[0061] In the shown embodiment, the differential structure further comprises two first limiting seats 82, a damping member 84 and a second limiting seat 86. The first shaft 16 and the second shaft 18 are rotatably inserted into the two first limiting seats 82 respectively, and the differential module is clamped between the two first limiting seats 82. The first limiting seats 82 are fixed with the first shaft 16 in the axial direction of the first shaft 16, and are fixed with the second shaft 18 in the axial direction of the second shaft 18. The two first limiting seats 82 can limit the differential module in the axial direction, preventing the differential module from being axially deviated. Figures 1-6 In the shown embodiment, the two ends of the transmission gear 54 are rotatably inserted into the two first limiting seats 82, achieving the supporting effect on the transmission gear 54 and preventing the transmission gear 54 from falling off. For example, the first limiting seat 82 is provided with a first through hole for the first shaft 16 to pass through, a second through hole for the second shaft 18 to pass through, and a third through hole for the transmission gear 54 to pass through.

[0062] The first shaft 16 and the second shaft 18 are rotatably connected to the damping member 84, so as to increase the damping force of the rotation of the support 14, so that the support 14 needs to be rotated under the action of a certain external force, increasing the rotation stability and support stability of the support 14. Preferably, the damping member 84 is provided with a first connecting hole 88 and a second connecting hole 90. The first shaft 16 is rotatably connected to the first connecting hole 88, and the second shaft 18 is rotatably connected to the second connecting hole 90. The above shaft and hole are, for example, in interference fit. The damping member 84 is further provided with a first opening 92 and a second opening 94. The first opening 92 communicates the first connecting hole 88 with the outside, and the second opening 94 communicates the second connecting hole 90 with the outside, so that the damping member 84 can be slightly deformed, reducing the wear between the damping member 84 and the shaft during rotation, prolonging the service life. The first opening 92 and the second opening 94 are, for example, located at opposite ends in the width direction of the damping member 84.

[0063] The first shaft 16 and the second shaft 18 are rotatably inserted into the second limiting seat 86, and the second limiting seat 86 is located at the end of the damping member 84 away from the differential module. The second limiting seat 86 is fixed with the first shaft 16 in the axial direction of the first shaft 16, and is fixed with the second shaft 18 in the axial direction of the second shaft 18. The damping member 84 is clamped between the second limiting seat 86 and one of the first limiting seats 82, which can limit the damping member 84 in the axial direction, preventing the damping member 84 from being axially deviated.

[0064] In the shown embodiment, the two first limiting seats 82 are provided with a plurality of first limiting grooves 96, and the two second limiting seats 86 are provided with a plurality of second limiting grooves 98. The first limiting grooves 96 and the second limiting grooves 98 are arranged in the axial direction of the first shaft 16 and the second shaft 18 respectively, and are arranged in the width direction of the first limiting seat 82 and the second limiting seat 86 respectively. The first limiting grooves 96 and the second limiting grooves 98 are arranged in the same direction, and the first limiting grooves 96 and the second limiting grooves 98 are arranged in the same direction. Figures 12-14In the shown embodiment, the differential transmission member is movably arranged between the two first limiting seats 82, and the differential transmission member can move from one first limiting seat 82 towards the other first limiting seat 82, and the distance of the movement of the differential transmission member in the axial direction of the first shaft 16 or the second shaft 18 is proportional to the angle of the rotation of the support 14, that is, the greater the distance between the two first limiting seats 82, the greater the angle of the opening of the support 14, and thus the maximum angle of the opening of the support 14 can be controlled by controlling the distance between the two first limiting seats 82.

[0065] In the shown embodiment, the electronic device accessory 10 further comprises a cover 96, which is sleeved outside the differential structure and can play the role of aesthetics and protection of the differential module. For example, the cover 96 is sleeved outside the differential module, the two first limiting seats 82, the damping member 84 and the second limiting seat 86.

[0066] In summary, the present application provides an electronic device accessory, which comprises a main body, a support and a differential structure. The support can rotate relative to the main body through the differential structure. The differential structure comprises a first shaft, a second shaft and a differential module. The first shaft is fixedly connected with the main body, and the second shaft is fixedly connected with the support. The differential module comprises a first differential member, a second differential member and a differential transmission member. The first differential member is fixedly arranged on the first shaft to be fixed relative to the main body. The second differential member is fixedly arranged on the second shaft to rotate with the support. The differential transmission member is movably connected between the first differential member and the second differential member, and the differential transmission member can drive the second differential member to revolve around the circumferential surface of the first differential member. The second differential member drives the second shaft to be lifted in height, thereby realizing the lifting of the support in height while rotating. The support can effectively avoid interference with the main body during rotation, ensure the normal rotation angle range of the support, and bring good product experience to users.

[0067] The concepts described herein can be embodied in other forms without departing from the spirit and nature of the disclosure. The specific embodiments disclosed are to be considered as illustrative and not restrictive. The scope of the application is to be determined by the appended claims rather than the description preceding them. Any change in the meaning of a claim or its scope between the amendment and the prior description is intended to apply.

Claims

1. An electronic device accessory, characterized in that, The application relates to a differential structure, which comprises a main body, a support and a differential structure, the support can rotate relative to the main body through the differential structure, the differential structure comprises a first shaft, a second shaft and a differential module, the first shaft is fixedly connected with the main body, the second shaft is fixedly connected with the support, the differential module comprises a first differential part, a second differential part and a differential transmission part, the first differential part is fixedly arranged on the first shaft to be fixed relative to the main body, the second differential part is fixedly arranged on the second shaft to rotate with the support, and the differential transmission part is movably connected between the first differential part and the second differential part, and the differential transmission part can drive the second differential part to revolve along the circumferential surface of the first differential part.

2. The electronic device accessory of claim 1, wherein, The first differential part is a fixed gear, the second differential part is a movable gear, and the differential transmission part is a transmission gear; the transmission gear is engaged between the fixed gear and the movable gear, and / or the transmission ratio of the movable gear to the fixed gear is between 1:2 and 1:

4.

3. The electronic device accessory of claim 2, wherein, The movable gear comprises a shaft and a plurality of movable teeth arranged on the outer surface of the shaft, the shaft is part of the second shaft, and the movable teeth are engaged with the transmission teeth of the transmission gear.

4. The electronic device accessory of claim 2, wherein, The fixed gear comprises a fixed gear sleeve and a plurality of fixed teeth arranged on the outer surface of the fixed gear sleeve, the fixed teeth are engaged with the transmission teeth of the transmission gear, the fixed gear sleeve is arranged outside the first shaft, and the fixed gear sleeve is fixedly connected with the first shaft.

5. The electronic device accessory of claim 4, wherein, The number of the fixed teeth is 3-9, the 3-9 fixed teeth are sequentially and adjacently arranged, and / or the 3-9 fixed teeth are arranged on the side of the fixed gear sleeve close to the transmission gear and close to the support, and / or the number of the fixed teeth is odd.

6. The electronic device accessory of claim 2, wherein, When the support is in a storage state, the axial height of the transmission gear is lower than the axial height of the fixed gear, and the axial height of the transmission gear is lower than the axial height of the movable gear; and / or the diameter of the movable gear is smaller than the diameter of the fixed gear, and the number of the teeth of the movable gear is greater than the number of the teeth of the fixed gear.

7. The electronic device accessory of claim 1, wherein, The first differential part comprises a first track, the second differential part comprises a second track, the differential transmission part comprises a transmission base, a first protrusion and a second protrusion, the transmission base is clamped between the first shaft and the second shaft, the first protrusion and the second protrusion are arranged on opposite sides of the transmission base respectively, the first protrusion is slidably matched in the first track, and the second protrusion is slidably matched in the second track.

8. The electronic device accessory of claim 7, wherein, The first track extends spirally along the circumference of the first shaft in the axial direction of the first shaft, and the second track extends spirally along the circumference of the second shaft in the axial direction of the second shaft.

9. The electronic device accessory of claim 8, wherein, The slope of the first track is smaller than the slope of the second track; and / or the slope ratio of the first track to the second track is between 1:2 and 1:4; and / or the first track extends spirally in a clockwise direction, the second track extends spirally in an anticlockwise direction, or the first track extends spirally in an anticlockwise direction, and the second track extends spirally in a clockwise direction.

10. The electronic device accessory of claim 7, wherein, The first differential gear further comprises a first ring sleeve, the first ring sleeve is sleeved outside the first shaft, and the first ring sleeve is fixedly connected with the first shaft, and the first track is arranged on the surface of the first ring sleeve; and / or the second differential gear further comprises a second ring sleeve, the second ring sleeve is sleeved outside the second shaft, and the second ring sleeve is fixedly connected with the second shaft, and the second track is arranged on the surface of the second ring sleeve.

11. The electronic device accessory of claim 10, wherein, The transmission base is provided with a first recess and a second recess on opposite sides, the first recess is matched with the first ring sleeve in shape, the second recess is matched with the second ring sleeve in shape, the first protrusion is arranged in the first recess, and the second protrusion is arranged in the second recess.

12. The electronic device accessory of any one of claims 1-11, wherein, The differential structure comprises two first limiting seats, the first shaft and the second shaft are rotatably inserted into the two first limiting seats, and the differential module is clamped between the two first limiting seats.

13. The electronic device accessory of claim 12, wherein, The differential transmission member is movably connected to the first limiting seat; and / or the first limiting seat is fixed with the first shaft in the axial direction of the first shaft, and the first limiting seat is fixed with the second shaft in the axial direction of the second shaft; and / or the differential transmission member is movably arranged between the two first limiting seats, the differential transmission member can move from one of the first limiting seats towards the other first limiting seat, and the movement distance of the differential transmission member is proportional to the angle of rotation of the support.

14. The electronic device accessory of any one of claims 1-11, wherein, The differential structure comprises a damping member, and the first shaft and the second shaft are rotatably connected to the damping member.

15. The electronic device accessory of claim 14, wherein, The damping member is provided with a first connecting hole and a second connecting hole, the first shaft is rotatably connected to the first connecting hole, and the second shaft is rotatably connected to the second connecting hole; the damping member is further provided with a first opening and a second opening, the first opening communicates the first connecting hole with the outside, and the second opening communicates the second connecting hole with the outside.

16. The electronic device accessory of claim 14, wherein, The differential structure further comprises a second limiting seat, the first shaft and the second shaft are rotatably inserted into the second limiting seat, and the second limiting seat is located at one end of the damping member away from the differential module.

17. The electronic device accessory of any one of claims 1-11, wherein, The electronic device accessory further comprises a sleeve, and the sleeve is sleeved outside the differential structure.

18. The electronic device accessory of any one of claims 1-11, wherein, The first shaft is connected with the main body through a first connecting member, the first connecting member comprises a first fixed part and a first shaft connecting part connected to one end of the first fixed part, the first fixed part is fixedly connected with the main body, and the first shaft connecting part is fixedly connected with the first shaft; and / or the second shaft is connected with the support through a second connecting member, the second connecting member comprises a second fixed part and a second shaft connecting part connected to one end of the second fixed part, the second fixed part is fixedly connected with the support, and the second shaft connecting part is fixedly connected with the second shaft.

19. The electronic device accessory of any one of claims 1-11, wherein, The main body is provided with a receiving part, the differential structure is arranged in the receiving part, and when the support is in the receiving state, the support is located in the receiving part and shields the differential structure.

20. The electronic device accessory of claim 19, wherein, The main body comprises a base arranged in the receiving part, the differential structure is connected between the support and the base, the first shaft is fixedly connected with the base, and the first differential part is fixed relative to the base.

21. The electronic device accessory of claim 20, wherein, The base and / or the support are provided with an avoiding connection position, and the differential structure is arranged in the avoiding connection position.

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