A wireless charging device

Abstract

The application discloses a wireless charging device and belongs to the technical field of wireless charging. The wireless charging device comprises a first cover body, a second cover body, a transmission mechanism, a charging coil and a magnetic member. The first cover body is movably connected with the second cover body. The transmission mechanism comprises a first gear and a second gear which are in transmission connection. The second gear is arranged on the second cover body and the first gear is in transmission connection with the first cover body. The charging coil is used for charging an electronic device placed on the first cover body. The magnetic member is arranged on a support which is connected with the transmission mechanism and is used for providing magnetic attraction to the electronic device placed on the first cover body. When the first cover body moves a first distance in a first direction towards the second cover body, the first cover body drives the magnetic member to move a second distance in the first direction through the transmission mechanism. The second distance is greater than the first distance.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of wireless charging, and particularly relates to a wireless charging device. BACKGROUND

[0002] Generally, a magnet can be arranged in the wireless charging device of the electronic device, so that when a user needs to fix the electronic device on the wireless charging device, the user can attach the electronic device to the wireless charging device, so that the magnet can generate a magnetic attraction force with the electronic device, and the electronic device can be fixed on the wireless charging device by the magnetic attraction force.

[0003] However, since the magnetic attraction force generated between the magnet and the electronic device can be large, when the user needs to take the electronic device away from the wireless charging device, the user can need to use a large force with both hands to separate the electronic device from the wireless charging device.

[0004] Therefore, the use convenience of the wireless charging device is poor. SUMMARY

[0005] The application aims to provide a wireless charging device, which can solve the problem of poor use convenience of the wireless charging device.

[0006] In a first aspect, the application provides a wireless charging device, which comprises a first cover body, a second cover body, a transmission mechanism, a charging coil and a magnetic member. The first cover body is movably connected with the second cover body. The transmission mechanism comprises a first gear and a second gear which are in transmission connection. The second gear is arranged on the second cover body, and the first gear is in transmission connection with the first cover body. The charging coil is used to charge an electronic device placed on the first cover body. The magnetic member is arranged on a bracket which is connected with the transmission mechanism, and is used to provide a magnetic attraction action for the electronic device placed on the first cover body. When the first cover body moves a first distance in a first direction towards the second cover body, the first cover body drives the magnetic member to move a second distance in the first direction through the transmission mechanism. The second distance is greater than the first distance.

[0007] In the embodiment of the present application, the wireless charging device comprises a first cover, a second cover movably connected with the first cover, a transmission mechanism comprising a first gear and a second gear in transmission connection (the second gear is arranged on the second cover, and the first gear is in transmission connection with the first cover), a charging coil for charging an electronic device placed on the first cover, and a magnetic member (arranged on a support connected with the transmission mechanism) for providing magnetic attraction to the electronic device placed on the first cover. In this way, when the first cover moves a first distance in a first direction towards the second cover, the first cover drives the magnetic member to move a second distance in the first direction through the transmission mechanism, and the second distance is greater than the first distance. When the electronic device is placed on the first cover, the second distance in the first direction at which the first cover drives the magnetic member to move through the transmission mechanism is greater than the first distance when the first cover moves a first distance in the first direction towards the second cover. In this way, the distance between the magnetic member and the first cover can be increased, and thus the magnetic attraction between the magnetic member and the electronic device can be reduced. Therefore, when the user needs to remove the electronic device from the wireless charging device, the user can separate the electronic device from the wireless charging device by using a smaller force, and thus the use convenience of the wireless charging device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 FIG. 1 is a side cross-sectional view of a wireless charging device according to an embodiment of the present application;

[0009] Figure 2 FIG. 2 is a cross-sectional view of the wireless charging device according to an embodiment of the present application;

[0010] Figure 3 FIG. 3 is another cross-sectional view of the wireless charging device according to an embodiment of the present application;

[0011] Figure 4 FIG. 4 is an enlarged view of position A of the wireless charging device in FIG. 1; Figure 3

[0012] Figure 5 FIG. 5 is a side cross-sectional view of the wireless charging device according to an embodiment of the present application;

[0013] Figure 6 FIG. 6 is a structural schematic view of a transmission mechanism of the wireless charging device according to an embodiment of the present application;

[0014] Figure 7 FIG. 7 is another structural schematic view of the transmission mechanism of the wireless charging device according to an embodiment of the present application;

[0015] Figure 8 FIG. 8 is a side cross-sectional view of the wireless charging device according to an embodiment of the present application; ​

[0016] Figure 9 Figure 4 is a fourth side cross-sectional view of the wireless charging device according to an embodiment of the present application;

[0017] Figure 10 Figure 3 is a third cross-sectional view of the wireless charging device according to an embodiment of the present application;

[0018] Wherein, the first cover-10, the second cover-11, the transmission mechanism-12, the third gear-121, the first gear-13, the second gear-14, the charging coil-15, the magnetic member-16, the support-17, the guide column-18, the elastic member-19, the sleeve-20, the support component-21, the fourth rack-22, the one-way damper-23, the first rack-24, the second rack-26, the fourth gear-27, the third rack-28, the sliding groove-29, the first transmission mechanism-30, the second transmission mechanism-31. DETAILED DESCRIPTION

[0019] Embodiments of the present application will be described in detail below with reference to the drawings, in which the same or similar components have the same or similar reference numbers throughout the drawings and a repeated explanation will be omitted. The embodiments described below are examples for explaining the present application and should not be understood as limiting the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative work fall within the scope of the present application.

[0020] The terms "first", "second" in the description and claims of the present application can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally indicates that the front and rear associated objects are in an "or" relationship.

[0021] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0022] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or integrally connected, can be mechanically connected, or can be electrically connected, can be directly connected, or indirectly connected through an intermediate medium, or can be the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0023] The wireless charging device provided by the embodiments of the present application will be described in detail below in combination with the drawings, specific embodiments and application scenarios.

[0024] Figure 1 A possible structural schematic diagram of a wireless charging device provided by the embodiments of the present application is shown, as shown in Figure 1 The wireless charging device includes a first cover 10, a second cover 11, the first cover 10 is movably connected with the second cover 11, a transmission mechanism 12, the transmission mechanism 12 includes a first gear 13 and a second gear 14 in transmission connection, the second gear 14 is arranged on the second cover 11, and the first gear 13 is in transmission connection with the first cover 10, a charging coil 15 for charging an electronic device placed on the first cover 10, a magnetic member 16 arranged on a support 17, the support 17 is connected with the transmission mechanism 12, for providing a magnetic attraction to the electronic device placed on the first cover 10.

[0025] Optionally, in the embodiments of the present application, the above-mentioned wireless charging device can be a fixed wireless charging device, or a vehicle-mounted wireless charging device, etc.

[0026] Optionally, in the embodiments of the present application, the first cover 10 can be specifically an upper cover, and the second cover 11 can be specifically a lower cover.

[0027] It should be noted that the "upper cover" can be understood as a cover for placing a component to be charged (such as an electronic device) when using the wireless charging device. The "lower cover" can be understood as a cover in contact with a supporting surface (such as a desktop, etc.) when using the wireless charging device.

[0028] The first cover 10 and the second cover 11 can be opposite covers or adjacent covers of the wireless charging device.

[0029] The first cover 10 can have any of the following shapes: a circle, an ellipse, a triangle, a rectangle, a diamond, a polygon, an irregular shape, etc. The second cover 11 can have any of the following shapes: a circle, an ellipse, a triangle, a rectangle, a diamond, a polygon, an irregular shape, etc. Here, the shape of the first cover 10 can be the same as or different from the shape of the second cover 11.

[0030] The first cover 10 is movably connected to the second cover 11, for example, the first cover 10 can move towards the second cover 11 (i.e. the first direction in the following embodiments), or can move away from the second cover 11 (i.e. the second direction in the following embodiments).

[0031] The first cover 10 is movably connected to the second cover 11, for example, the first cover 10 can move towards the second cover 11 (i.e. the first direction in the following embodiments), or can move away from the second cover 11 (i.e. the second direction in the following embodiments).

[0032] The first cover 10 is movably connected to the second cover 11, for example, the first cover 10 can move towards the second cover 11 (i.e. the first direction in the following embodiments), or can move away from the second cover 11 (i.e. the second direction in the following embodiments).

[0033] The first cover 10 is movably connected to the second cover 11, for example, the first cover 10 can move towards the second cover 11 (i.e. the first direction in the following embodiments), or can move away from the second cover 11 (i.e. the second direction in the following embodiments).

[0034] In the embodiments of the present application, the transmission mechanism 12 is used to amplify the stroke of the magnetic member 16.

[0035] Optionally, in the embodiments of the present application, the first gear 13 can be in transmission connection with the second gear 14, and the radius of the first gear 13 is smaller than the radius of the second gear 14.

[0036] Optionally, in the embodiments of the present application, the second gear 14 can also be in transmission connection with the bracket.

[0037] The transmission connection can be direct transmission connection (e.g. meshing connection) or indirect transmission connection (e.g. connection through a rack, a gear, a track, etc.).

[0038] Further optionally, in the embodiment of the present application, the first gear 13 and the second gear 14 can be connected through at least one gear (and / or at least one rack).

[0039] It can be understood that, since the radius of the first gear 13 is smaller than the radius of the second gear 14, the first gear 13 and the second gear 14 can be connected through the transmission mechanism 12 to amplify the stroke of the magnetic member 16.

[0040] In the embodiment of the present application, the magnetic member 16 is used to generate magnetic attraction force with the component to be charged (for example, an electronic device), so as to fix the component to be charged on the first cover 10 (i.e., on the wireless charging device).

[0041] Optionally, in the embodiment of the present application, the magnetic member 16 can be any one of the following: metal (for example, iron, nickel, cobalt, and part of alloy) with original magnet structure, permanent magnet (for example, magnetite), electromagnet, etc. The shape of the magnetic member 16 can be any one of the following: rectangular body, cylindrical body, ring body, etc. The magnetic member 16 can include one or more magnetic members.

[0042] In the embodiment of the present application, when the first cover 10 moves a first distance in the first direction towards the second cover 11, the first cover 10 can drive the first gear 13 to rotate, so as to drive the second gear 14 to rotate, thereby driving the bracket to move a second distance in the first direction, and further driving the magnetic member 16 to move the second distance in the first direction, the second distance being greater than the first distance.

[0043] It can be understood that the direction of the movement of the first cover 10 is the same as the direction of the movement of the magnetic member 16, and the distance of the movement of the first cover 10 is smaller than the distance of the movement of the magnetic member 16, i.e., the magnetic member 16 can move away from the first cover 10.

[0044] In the embodiment of the present application, the user can place the component to be charged (for example, an electronic device) on the surface of the first cover 10 of the wireless charging device away from the second cover 11, and when the user wants to take the electronic device away from the wireless charging device, the user can press the first cover 10, so that the first cover 10 can move a first distance in the first direction, and further so that the first cover 10 can drive the magnetic member 16 to move a second distance in the first direction through the transmission mechanism 12 (i.e., the magnetic member 16 can move away from the first cover 10), thereby increasing the distance between the magnetic member 16 and the electronic device, and reducing the magnetic attraction force generated between the magnetic member 16 and the electronic device.

[0045] Of course, in order to avoid the case that the first cover 10 moves in the first direction when the to-be-charged component (for example, the electronic device) is placed on the surface of the first cover 10 away from the second cover 11, a supporting component can be arranged between the first cover 10 and the second cover 11 to support the first cover 10 and the second cover 11.

[0046] Optionally, in the embodiment of the present application, in combination with Figure 1 As shown in Figure 2 the wireless charging device further includes a supporting component arranged between the first cover 10 and the second cover 11, and the supporting component includes: a guide column 18, a first end of the guide column 18 being arranged on a surface of the second cover 11 facing the first cover; an elastic member 19, the elastic member 19 being sleeved on the guide column 18; and a sleeve 20, the sleeve 20 being arranged on a surface of the first cover 10 facing the second cover, the guide column 18 being at least partially sleeved in the sleeve 20 and being in sliding fit with the sleeve 20.

[0047] Further optionally, in the embodiment of the present application, an axis of the guide column 18 is perpendicular to the second cover 11.

[0048] Further optionally, in the embodiment of the present application, the elastic member 19 can be any one of the following: a spring, a spring piece, an elastic block, and the like.

[0049] Further optionally, in the embodiment of the present application, an axis of the sleeve 20 is perpendicular to the second cover 11.

[0050] When the user places the to-be-charged component (for example, the electronic device) on the surface of the first cover 10 away from the second cover 11, the sleeve 20 is in contact with the elastic member 19 to support the first cover 10 and the electronic device through the elastic member 19, so that the first cover 10 and the second cover 11 do not move relative to each other; when the user needs to remove the electronic device from the wireless charging device, the user can press the first cover 10, so that the first cover 10 can move in the first direction by a first distance against the elastic deformation force of the elastic member 19.

[0051] Therefore, when the to-be-charged component is placed on the first cover, the first cover can be prevented from moving in the first direction, and thus the stability of the wireless charging device can be improved.

[0052] Optionally, in the embodiment of the present application, in combination with Figure 2 As shown in Figure 3 the number of the supporting components is multiple, and the multiple supporting components 21 are uniformly distributed between the first cover 10 and the second cover 11.

[0053] Further optionally, in the embodiment of the present application, the plurality of support components 21 can be evenly distributed around the center of the second cover 11.

[0054] Therefore, as the first cover and the second cover can be supported by the plurality of support components, the first cover can be further prevented from moving in the first direction when the to-be-charged component is placed on the first cover, so as to further improve the stability of the wireless charging device.

[0055] Of course, after the first cover 10 moves in the first direction by the first distance, the first cover 10 can also move in the direction opposite to the first direction (for example, the second direction in the following embodiment) by the first distance, so that the wireless charging device can be reset.

[0056] Optionally, in the embodiment of the present application, after the first cover 10 moves in the first direction by the first distance, the first cover 10 can be driven to move in the direction opposite to the first direction by the first distance by the elastic restoring force of the elastic member 19.

[0057] In the embodiment of the present application, in order to avoid the case that the wireless charging device is reset while the user has not yet removed the to-be-charged component from the first cover 10, a damping component can also be arranged between the first cover 10 and the second cover 11, so as to generate resistance to the movement of the first cover 10 in the direction opposite to the first direction by the damping component.

[0058] Optionally, in the embodiment of the present application, the wireless charging device further comprises a damping component, two ends of the damping component are respectively connected with the first cover 10 and the second cover 11.

[0059] In the embodiment of the present application, the damping component is used to hinder the movement of the first cover 10 towards the direction away from the second cover 11.

[0060] Further optionally, in the embodiment of the present application, one end of the damping component can be in transmission connection with the first cover 10, and the other end of the damping component can be connected with the second cover 11 by welding, bonding, bolting or the like.

[0061] Optionally, in the embodiment of the present application, in combination with Figure 3 As shown in FIG. 1, the damping component comprises a fourth rack 22 and a one-way damper 23. Figure 4 The fourth rack 22 is arranged on the surface of the first cover 10 facing the second cover 11, and the one-way damper 23 is arranged on the surface of the second cover 11 facing the first cover 10, and the fourth rack 22 is engaged with the one-way damper 23.

[0062] In the embodiment of the present application, the one-way damper 23 is used to generate resistance to the movement of the first cover 10 in the second direction by the fourth rack 22.

[0063] It can be understood that when the first cover 10 moves in the second direction away from the second cover 11, the first cover 10 can drive the one-way damper 23 to rotate, and at this time, the one-way damper 23 can generate resistance to increase the time for the magnetic member 16 to move to the original position (i.e. the position before the magnetic member 16 moves).

[0064] Therefore, since the damping component for impeding the first cover to move in the direction away from the second cover can be arranged between the first cover and the second cover, the time for the magnetic member to move to the original position before the magnetic member moves can be increased, so that the situation that the user has not taken the electronic device from the first cover, but the magnetic member has already moved to the original position can be avoided, i.e. the situation that the user needs to use a larger force to separate the electronic device from the wireless charging device can be avoided, so that the use convenience of the wireless charging device can be improved.

[0065] The wireless charging device provided by the embodiment of the present application comprises a first cover, a second cover movably connected with the first cover, a transmission mechanism comprising a first gear and a second gear in transmission connection (the second gear is arranged on the second cover, and the first gear is in transmission connection with the first cover), a charging coil for charging an electronic device placed on the first cover, and a magnetic member (arranged on a support, and the support is connected with the transmission mechanism) for providing magnetic attraction to the electronic device placed on the first cover. In this way, when the first cover moves in a first direction towards the second cover by a first distance, the first cover drives the magnetic member to move in the first direction by a second distance through the transmission mechanism, and the second distance is greater than the first distance. Since when the electronic device is placed on the first cover, the first cover drives the magnetic member to move in the first direction by the second distance through the transmission mechanism when the first cover moves in the first direction towards the second cover by the first distance, and the second distance is greater than the first distance, the distance between the magnetic member and the first cover can be increased, so that the magnetic attraction between the magnetic member and the electronic device can be reduced, and thus when the user needs to take the electronic device from the wireless charging device, the user can separate the electronic device from the wireless charging device by using a smaller force, so that the use convenience of the wireless charging device is improved.

[0066] The structure of the transmission mechanism will be exemplified below.

[0067] Optionally, in the embodiment of the present application, Figure 5As shown, the transmission mechanism further includes: a first rack 24, which is disposed on the first cover 10 and extends in a direction perpendicular to the first cover 10, and a first gear 13 meshes with the first rack 24; a bracket 17, which is movably connected to the second cover 11, and a magnetic component 16 is fixedly connected to the bracket 17, and a second rack 25 is disposed on the bracket 17, and a second gear 14 meshes with the second rack 25.

[0068] Further optionally, in this embodiment of the application, the first rack 24 may be disposed on the positioning sleeve of the first cover 10; the first rack 24 may extend in a direction perpendicular to the first cover 10.

[0069] The first rack 24 can be integrally set with the positioning sleeve, or it can be set on the positioning sleeve by welding, bonding, bolting or other methods.

[0070] In this embodiment of the application, the first gear 13 and the second gear 14 are connected in a transmission manner. The radius of the first gear 13 is smaller than the radius of the second gear 14, and the first rack and the second rack extend in the same direction.

[0071] Optionally, in the embodiments of this application, the first gear 13 and the second gear 14 can be connected by at least one gear (and / or at least one rack).

[0072] The first gear 13 and the second gear 14 rotate in the same direction.

[0073] Alternatively, in this embodiment, the bracket 17 can be movably connected to the second cover 11 by providing a sliding seat on the surface of the second cover 11 close to the first cover 10. The bracket 17 is slidably provided on the sliding seat, so that the bracket 17 can slide on the sliding seat to move relative to the second cover 11.

[0074] In cases where there are multiple magnetic components 16, the bracket 17 can be connected to some of the multiple magnetic components.

[0075] In this embodiment of the application, when the first cover 10 moves along the first direction, the first rack 24 moves along the first direction to drive the first gear 13 to rotate, thereby causing the second gear 14 to rotate, and then driving the bracket 17 to move along the first direction through the second rack 25.

[0076] Combination Figure 5When the first cover 10 moves in the first direction towards the second cover 11, the first rack 24 also moves in the first direction to drive the first gear 13 to rotate in the clockwise direction, so that the second gear 14 rotates in the clockwise direction, and then drives the bracket 17 to move in the first direction through the second rack 25, so as to drive the magnetic member 16 to also move in the first direction.

[0077] Therefore, the wireless charging device can enlarge the stroke of the magnetic member, increase the distance between the magnetic member and the first cover, and reduce the magnetic force between the magnetic member and the electronic device, thereby improving the use convenience of the wireless charging device.

[0078] Optionally, as shown in FIG. 1, the transmission mechanism 12 further includes a third gear 121 coaxially arranged with the first gear 13, and a fourth gear 27 coaxially arranged with the second gear 14. Figure 6 The radius of the fourth gear 27 is smaller than the radius of the second gear 14, and the radius of the fourth gear 27 is smaller than the radius of the third gear 121. The third gear 121 is in transmission connection with the fourth gear 27.

[0079] It should be noted that the "third gear 121 coaxially arranged with the first gear 13" can be understood as that the rotation shaft of the third gear 121 is the same as the rotation shaft of the first gear 13. The "fourth gear 27 coaxially arranged with the second gear 14" can be understood as that the rotation shaft of the fourth gear 27 is the same as the rotation shaft of the second gear 14.

[0080] Further optionally, in the embodiment of the present application, the radius of the third gear 121 can be the same as or different from the radius of the second gear 14.

[0081] In the embodiment of the present application, when the first rack 24 moves in the first direction, the first gear 13 and the third gear 121 coaxially rotate to drive the fourth gear 27 and the second gear 14 to coaxially rotate.

[0082] It can be understood that, in the case that the first cover 10 moves a first distance along the first direction, the first rack 24 also moves a first distance along the first direction to drive the first gear 13 and the third gear 121 to rotate the same first number of turns to amplify the stroke of the magnetic member 16, and since the radius of the fourth gear 27 is smaller than the radius of the third gear 121, in the case that the third gear 121 rotates the first number of turns, the third gear 121 can drive the fourth gear 27 to rotate a second number of turns greater than the first number of turns to drive the second gear 14 to rotate the second number of turns to amplify the stroke of the magnetic member 16 again.

[0083] Therefore, the distance between the magnetic member and the first cover can be further increased, so that the magnetic member can be further reduced between the electronic device, and the use convenience of the wireless charging device can be further improved.

[0084] Optionally, in the embodiment of the present application, the transmission mechanism 12 further comprises a third rack 28. Figure 6 As shown in the figure, the transmission mechanism 12 further comprises a third rack 28. Figure 7 The third rack 28 is relatively movable with the second cover 11.

[0085] In the embodiment of the present application, the third rack 28 extends along the plane where the second cover 11 is located, and the third rack 28 is engaged with the third gear 121 and the fourth gear 27.

[0086] In the case that the first gear 13 and the third gear 121 rotate coaxially, the third rack 28 can extend along the plane where the second cover 11 is located to drive the third gear 121 and the fourth gear 27 to rotate simultaneously, and then the fourth gear 27 can drive the second gear 14 to rotate coaxially.

[0087] Therefore, the third gear and the fourth gear can be stably connected in transmission by the third rack to improve the stability of the rotation of the third gear and the fourth gear.

[0088] Optionally, in the embodiment of the present application, the transmission mechanism 12 further comprises a third rack 28. Figure 7 As shown in the figure, the transmission mechanism 12 further comprises a third rack 28. Figure 8 The third rack 28 is relatively movable with the second cover 11.

[0089] Further optionally, in the embodiment of the present application, the sliding groove 29 can be a dovetail groove.

[0090] In the embodiment of the present application, the third rack 28 is arranged in the sliding groove 29 and can slide relative to the sliding groove 29.

[0091] In combination Figure 8 When the first gear 13 and the third gear 121 rotate coaxially (for example, clockwise), the third rack 28 can move relative to the sliding groove 29 in the third direction (for example, horizontally leftward) to drive the fourth gear 27 and the second gear 14 to rotate coaxially (for example, clockwise).

[0092] Therefore, the stability of the movement of the third rack can be improved, and the stability of the rotation of the third gear and the fourth gear can be further improved.

[0093] The wireless charging device will be described below by taking the number of transmission mechanisms as at least two as an example.

[0094] Optionally, in the embodiment of the present application, the transmission mechanism 12 includes at least two transmission mechanisms.

[0095] In the embodiment of the present application, the at least two transmission mechanisms are symmetrically arranged relative to the center of the second cover body 11.

[0096] It should be noted that the structure of each of the at least two transmission mechanisms can be described by referring to the specific description of the structure of the transmission mechanism in the above embodiment, and the embodiment of the present application will not be described here.

[0097] Optionally, in the embodiment of the present application, as Figure 9 shown, the at least two transmission mechanisms can include a first transmission mechanism 30 and a second transmission mechanism 31, and the first transmission mechanism 30 and the second transmission mechanism 31 are symmetrically arranged relative to the center of the second cover body 11.

[0098] Optionally, in the embodiment of the present application, the magnetic member 16 can include a first sub-magnetic member and a second sub-magnetic member, wherein one end of the support of the first transmission mechanism 30 is connected to the first sub-magnetic member, and one end of the support of the second transmission mechanism 31 is connected to the second sub-magnetic member.

[0099] In order to more clearly show the first transmission mechanism and the second transmission mechanism, Figure 10 a cross-sectional view of the wireless charging device is shown. As Figure 10 shown, the transmission mechanism 12 includes a first transmission mechanism 30 and a second transmission mechanism 31, and the first transmission mechanism 30 and the second transmission mechanism 31 are symmetrically arranged relative to the center of the second cover body 11.

[0100] Therefore, the wireless charging device can improve the stability of the movement of the magnetic element, because the wireless charging device can amplify the stroke of the movement of the magnetic element through the two transmission mechanisms symmetrically arranged relative to the center of the second cover.

[0101] It should be noted that the terms "comprising," "including," and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises... " does not exclude the existence of additional identical elements in the process, method, article, or apparatus that includes the element. In addition, it should be pointed out that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but can also include performing functions in a substantially simultaneous manner or in reverse order, for example, the described method can be performed in an order different from that described, and various steps can also be added, omitted, or combined. In addition, the features described with reference to certain examples can be combined in other examples.

[0102] The embodiments of the present application are described above in combination with the accompanying drawings, but the present application is not limited to the above-described specific embodiments, and the above-described specific embodiments are merely illustrative and not limiting. Those skilled in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the scope of protection of the claims, and all forms belong to the protection of the present application.

Claims

1. A wireless charging device, characterized in that, The wireless charging device includes: First cover; The second cover is movably connected to the first cover; The transmission mechanism includes a first gear and a second gear that are connected in a transmission manner. The second gear is disposed on the second cover, and the first gear is connected in a transmission manner to the first cover. A charging coil is used to charge an electronic device placed on the first cover. A magnetic component is mounted on a bracket, which is connected to the transmission mechanism, and is used to provide a magnetic attraction to an electronic device placed on the first cover. Wherein, when the first cover moves a first distance along a first direction toward the second cover, the first cover drives the magnetic component to move a second distance along the first direction via the transmission mechanism; the second distance is greater than the first distance. The wireless charging device further includes a support component disposed between the first cover and the second cover, the support component comprising: A guide post, the first end of which is disposed on the surface of the second cover facing the first cover; An elastic element is sleeved on the guide post; A sleeve is disposed on the surface of the first cover facing the second cover, and the guide post is at least partially sleeved in the sleeve and slidably engaged with the sleeve.

2. The wireless charging device according to claim 1, characterized in that, The transmission mechanism also includes: A first rack is disposed on the first cover and extends in a direction perpendicular to the first cover, and a first gear meshes with the first rack; The bracket is movably connected to the second cover, the magnetic component is fixedly connected to the bracket, and a second rack is provided on the bracket, with the second gear meshing with the second rack; The first gear is connected to the second gear in a transmission manner, the radius of the first gear is smaller than the radius of the second gear, and the first rack and the second rack extend in the same direction.

3. The wireless charging device according to claim 2, characterized in that, The transmission mechanism also includes: The third gear is coaxial with the first gear, and the radius of the third gear is greater than the radius of the first gear. The fourth gear is coaxially arranged with the second gear, the radius of the fourth gear is smaller than the radius of the second gear, the radius of the fourth gear is smaller than the radius of the third gear, and the third gear is connected to the fourth gear in a transmission manner. When the first rack moves along the first direction, the first gear and the third gear rotate coaxially to drive the fourth gear and the second gear to rotate coaxially.

4. The wireless charging device according to claim 3, characterized in that, The transmission mechanism also includes: The third rack is movable relative to the second cover. The third rack extends along the plane of the second cover, and the third rack meshes with both the third gear and the fourth gear.

5. The wireless charging device according to claim 4, characterized in that, The transmission mechanism also includes: A sliding groove is provided on the surface of the second cover facing the first cover; The third rack is disposed within the groove and can slide relative to the groove.

6. The wireless charging device according to claim 2, characterized in that, The transmission mechanism includes at least two transmission mechanisms; The at least two transmission mechanisms are arranged symmetrically with respect to the center of the second cover.

7. The wireless charging device according to claim 1, characterized in that, The number of support components is multiple, and the multiple support components are evenly distributed between the first cover and the second cover.

8. The wireless charging device according to claim 1, characterized in that, The wireless charging device also includes: A damping component, the two ends of which are respectively connected to the first cover and the second cover; The damping component is used to prevent the first cover from moving away from the second cover.

9. The wireless charging device according to claim 8, characterized in that, The damping component includes: A fourth rack is disposed on the surface of the first cover facing the second cover; A one-way damper is disposed on the surface of the second cover facing the first cover, and the fourth rack meshes with the one-way damper; The unidirectional damper is used to generate resistance to the movement of the first cover in the second direction via the fourth rack.

Images