Transmitting coil moving bracket transmission structure and wireless charger thereof

Abstract

The utility model discloses a transmitting coil mobile bracket transmission structure and a wireless charger thereof, the transmission structure comprises a mounting bracket, a mobile bracket and a motor, the mounting bracket is provided with a guide groove, the inner wall of the guide groove is provided with a lip plate, the lip plate extends into the guide groove, so that the cross section of the guide groove is L-shaped, the mobile bracket is provided with a guide block, and the guide block extends into the guide groove. The guide block is in an L shape and is slidably arranged in the guide groove, and the motor is in transmission connection with the guide block; the face, facing the mounting support, of the movable bracket is a sliding face, a transmission shaft of the motor is perpendicular to the sliding face, the motor is perpendicular to the sliding face, namely, the motor is longitudinally arranged, the motor can be directly in transmission connection with the guide block, a switching structure for changing the transmission direction is omitted, and the size of the wireless charger is effectively reduced. Furthermore, the structure of the adapter structure (the adapter structure is a reduction gear box in the utility model) is simplified, and the adapter structure is convenient to assemble and produce.

Description

Technical Field

[0001] The utility model relates to the technical field of wireless chargers, in particular to a transmission structure for a moving bracket of a transmitting coil and a wireless charger thereof. Background Art

[0002] Wireless chargers utilize the principle of electromagnetic induction, and their mechanism is similar to that of a transformer. In a wireless charger, coils are installed at both the transmitting end and the receiving end. When the coil at the transmitting end is powered on, it emits an electromagnetic signal. After the coil at the receiving end receives these electromagnetic signals, it can convert them into an electric current, thus realizing the function of wireless charging.

[0003] A wireless charger (publication number CN114759683A) is disclosed in the prior art. It sets the motor in a horizontal position. Since its guide rail and the moving bracket are in a "C" shape, the output shaft gear of the horizontally placed motor and the teeth of the guide rail are in a vertical relationship. A transfer structure, generally a reduction gearbox, needs to be set between the output shaft gear of the motor and the teeth of the guide rail. When selecting a reduction gearbox, a gear assembly for converting the transmission direction is required. Generally, a crown gear or a bevel gear is used to convert the transmission direction. When two crown gears or two bevel gears are used for transfer, the gear shafts of the two crown gears or two bevel gears are in a mutually perpendicular state. The reduction gearbox then needs to be designed with mounting holes for installing the above gear shafts, and mutually perpendicular gear shafts need to be installed during installation. Therefore, it will cause the problem of low assembly efficiency of the reduction gearbox, and it is also not conducive to the design and use of subsequent automated assembly equipment for the reduction gearbox. Summary of the Utility Model

[0004] In order to overcome at least one of the above-mentioned defects in the prior art, the utility model provides a transmission structure for a moving bracket of a transmitting coil and a wireless charger thereof, which can solve the problem of low assembly efficiency of the horizontally placed motor reduction gearbox.

[0005] The technical solution adopted by the utility model to solve its problems is as follows:

[0006] A transmission structure for a moving bracket of a transmitting coil, comprising:

[0007] A mounting bracket, the mounting bracket is provided with a guide groove, the inner wall of the guide groove is provided with a lip plate, and the lip plate extends into the guide groove, so that the cross-section of the guide groove is L-shaped;

[0008] A moving bracket, the moving bracket is provided with a guide block, the guide block is L-shaped, and the guide block is slidably arranged in the guide groove;

[0009] A motor, the motor is传动连接 with the guide block;

[0010] Wherein, a side of the movable bracket facing the mounting bracket is a sliding surface, and the transmission shaft of the motor is arranged perpendicular to the sliding surface.

[0011] By adopting the above scheme, the lip plate is arranged on one side of the guide groove, so that the cross section of the guide groove is L-shaped, and the guide block is L-shaped, so that the relative movement of the guide block and the guide groove is more stable. In the transmission connection between the L-shaped guide block and the motor, the motor is arranged vertically to the sliding surface, that is, the motor is arranged longitudinally, and the motor can directly drive and connect the guide block. Even if the guide block is indirectly driven and connected through a reduction gearbox, the reduction gearbox does not need to be provided with a gear assembly that changes the transmission direction, which facilitates the design and assembly of the reduction gearbox. Furthermore, it is also convenient for the design and use of the automatic assembly equipment of the reduction gearbox.

[0012] Furthermore, the motor is transmission-connected to the guide block via a reduction gear box.

[0013] By adopting the above solution, compared with the direct transmission connection between the motor and the guide block, the motor needs to be a variable frequency motor or a servo motor with a self-adjusting speed function. The motor is connected to the guide block through a reduction gear box, and an ordinary motor can be used.

[0014] Furthermore, the mounting bracket body is provided with a notch, the notch constitutes a mounting opening, and the mounting opening is used to install the reduction gear box.

[0015] By adopting the above scheme, a mounting opening is provided on the mounting bracket, thereby eliminating the need for the thickness of two layers of the board surface (i.e., the thickness of the shell of one layer of the reduction gear box and the thickness of one layer of the mounting bracket) generated by directly installing the reduction gear box with a shell onto the mounting bracket without the mounting opening in the traditional installation process. Instead, the mounting bracket is provided with a notch-type mounting opening at the location where the reduction gear box is installed, and the reduction gear box is installed at the mounting opening, thereby reducing the thickness of the mounting bracket in the traditional installation, thereby reducing the thickness of the overall structure of the wireless charger, so as to realize the miniaturized design of the wireless charger.

[0016] Furthermore, the guide groove is provided with a first avoidance opening, the output gear of the reduction gear box at least partially passes through the first avoidance opening and extends into the guide groove, and the guide block is provided with teeth meshing with the output gear on the side facing the first avoidance opening.

[0017] By adopting the above solution, the first avoidance opening facilitates the meshing transmission between the output gear of the reduction gear box and the teeth of the guide block.

[0018] Furthermore, the reduction gear box has a plurality of gear shafts, and all of the gear shafts are arranged parallel to the transmission shaft of the motor.

[0019] By adopting the above solution, all the gear shafts are arranged parallel to the transmission shaft of the motor, which facilitates the installation of the gear shafts and also facilitates the design of the mounting holes of the reduction gear box for mounting the gear shafts.

[0020] Furthermore, a surface of the reduction gear box facing the moving bracket is flush with a surface of the mounting opening facing the moving bracket.

[0021] By adopting the above solution, the flatness of the surface of the mounting bracket is ensured.

[0022] Furthermore, the reduction gear box is provided with a mounting groove for mounting the motor.

[0023] By adopting the above solution, the integrity of the reduction gear box and the motor is ensured, and the motor is prevented from shifting during long-term working processes.

[0024] Furthermore, the motor is electrically connected to a control circuit board, and the control circuit board is provided with a second avoidance opening so that the motor can pass through the second avoidance opening.

[0025] By adopting the above scheme, in order to control the thickness of the wireless charger and reduce the space for installing the motor, the control circuit board needs to be provided with a second avoidance opening so that the motor can be embedded in the control circuit board for installation. Since the motor generally has a dimension in the direction of the transmission shaft that is larger than the dimensions in the other two directions, compared with the horizontal motor in the prior art (the second avoidance opening of the control circuit board needs to be set according to the dimension in the direction of the transmission shaft of the motor), the second avoidance opening required by the longitudinal motor of the utility model has a smaller reserved size, and the remaining board area of ​​the control circuit board is relatively increased, and more electrical components can be installed, so that even if the second avoidance opening is set, it will not affect the space for circuit design on the control circuit board and the space for soldering components.

[0026] Furthermore, a shape of the second avoidance opening corresponds to a projection shape of the motor on the control circuit board.

[0027] By adopting the above solution, the size of the second avoidance opening is reduced as much as possible, thereby satisfying the space for basic circuit design and component welding on the control circuit board.

[0028] The utility model also provides a wireless charger, comprising a shell and the above-mentioned transmitting coil moving bracket transmission structure, the shell comprising a top cover and an installation box, and the transmitting coil moving bracket transmission structure is arranged in a cavity formed by the top cover and the installation box.

[0029] By adopting the above solution, the outer shell facilitates the installation of the transmission structure of the ray ring moving bracket, and the top cover is used to place the terminal that needs to be wirelessly charged.

[0030] In summary, the transmitting coil mobile bracket transmission structure and the wireless charger provided by the utility model have the following technical effects:

[0031] The motor is arranged vertically to the sliding surface, that is, the motor is arranged longitudinally, and the motor can directly drive the connecting guide block, eliminating the switching structure for changing the transmission direction, effectively reducing the size of the wireless charger. Furthermore, the structure of the switching structure (a reduction gear box in the present invention) is simplified, which is convenient for assembly and production. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the explosion structure of the utility model;

[0033] Figure 2 It is a schematic diagram of the partial explosion structure of the utility model;

[0034] Figure 3 It is a schematic diagram of the structure of the transmission part of the utility model.

[0035] Among them, the meanings of the figure marks are as follows: 1. Mounting bracket; 11. Guide groove; 111. Lip plate; 12. Mounting opening; 13. First avoidance opening; 2. Moving bracket; 21. Guide block; 22. Teeth; 23. Sliding surface; 3. Motor; 4. Reduction gear box; 41. Output gear; 42. Mounting groove; 5. Control circuit board; 51. Second avoidance opening; 61. Top cover; 62. Mounting box. DETAILED DESCRIPTION

[0036] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described and discussed below in conjunction with the accompanying drawings of the present invention. Obviously, what is described here is only a part of the examples of the present invention, not all the examples. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0037] In order to facilitate the understanding of the embodiments of the present utility model, the following will be further explained by taking specific embodiments as examples in conjunction with the drawings, and each embodiment does not constitute a limitation on the embodiments of the present utility model.

[0038] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0040] Reference Figure 1 and Figure 2 As shown, the utility model discloses a transmission structure of a transmitting coil mobile bracket, comprising a mounting bracket 1, a mobile bracket 2 and a motor 3, wherein the mounting bracket 1 is provided with a guide groove 11, the inner wall of the guide groove 11 is provided with a lip plate 111, the lip plate 111 extends into the guide groove 11, so that the cross section of the guide groove 11 is L-shaped, the mobile bracket 2 is provided with a guide block 21, the guide block 21 is L-shaped, the guide block 21 is slidably arranged in the guide groove 11, the motor 3 is transmission-connected with the guide block 21, wherein, with reference to Figure 3 As shown, the side of the movable bracket 2 facing the mounting bracket 1 is a sliding surface 23 , and the transmission shaft of the motor 3 is arranged perpendicular to the sliding surface 23 .

[0041] Specifically, the inner wall of the guide groove 11 is provided with a lip plate 111, and the lip plate 111 extends into the guide groove 11, so that the cross section of the guide groove 11 is L-shaped. The movable bracket 2 is provided with a guide block 21, and the guide block 21 is L-shaped. The L-shaped guide block 21 is slidably installed in the guide groove 11 with an L-shaped cross section. The outer surface of the guide block 21 is designed to fit the outer surface of the guide groove 11 to the best, which can ensure the stability of the guide block 21 when it moves in the guide groove 11. The motor 3 is connected to the guide block 21 by transmission, so as to drive the movable bracket 2 to move. In this embodiment, the movable bracket 2 and the guide block 21 are integrally formed to ensure the stability of the movable bracket 2 and the guide block 21 during the transmission process, and at the same time facilitate the installation of the movable bracket 2 and the guide block 21. The side of the mobile bracket 2 facing the mounting bracket 1 is a sliding surface 23, and the transmission shaft of the motor 3 is arranged perpendicular to the sliding surface 23, that is, the motor 3 is arranged vertically, and the motor 3 can be directly connected to the guide block 21 through transmission, even if it is indirectly connected to the guide block 21 through the reduction gear box 4, the reduction gear box 4 does not need to be provided with a gear assembly that changes the transmission direction, which facilitates the design and assembly of the reduction gear box 4. Furthermore, it is also convenient to design and use the automatic assembly equipment of the reduction gear box 4.

[0042] The working principle of the above structure is:

[0043] The motor 3 drives the guide block 21 which is transmission-connected thereto, thereby driving the movable bracket 2 to slide along the direction of the guide groove 11 .

[0044] Reference Figure 1 As shown, in this embodiment, the motor 3 is connected to the guide block 21 through a reduction gear box 4. Compared with the direct transmission connection between the motor 3 and the guide block 21, the motor 3 needs a variable frequency motor 3 or a servo motor 3 with a self-adjusting speed function, and the motor 3 is connected to the guide block 21 through a reduction gear box 4, and an ordinary motor 3 can be used.

[0045] Reference Figure 2 As shown, in order to further reduce the volume of the wireless charger, the mounting bracket 1 body is provided with a notch, and the notch constitutes a mounting opening 12, and the mounting opening 12 is used to install the reduction gear box 4. In the traditional installation process, the reduction gear box 4 with a shell is directly installed on the mounting bracket 1 without the mounting opening 12, which will produce the thickness of two layers of the board surface (i.e., the shell thickness of one layer of the reduction gear box 4 and the thickness of one layer of the mounting bracket 1). Instead, the mounting bracket 1 is provided with a notch-type mounting opening 12 at the location where the reduction gear box 4 is installed, and the reduction gear box 4 is installed at the mounting opening 12, which reduces the thickness of the mounting bracket 1 in the traditional installation, thereby reducing the thickness of the overall structure of the wireless charger, so as to realize the miniaturized design of the wireless charger.

[0046] Reference Figure 2 and Figure 3 As shown, in order to facilitate the meshing transmission of the output gear 41 of the reduction gear box 4 and the teeth 22 of the guide block 21, the guide groove 11 is provided with a first avoidance opening 13, and the output gear 41 of the reduction gear box 4 at least partially passes through the first avoidance opening 13 and extends into the guide groove 11, and the guide block 21 is provided with teeth 22 meshing with the output gear 41 on the side facing the first avoidance opening 13.

[0047] Reference Figure 2 As shown, in some embodiments, the reduction gear box 4 has multiple gear shafts, and all of the gear shafts are arranged parallel to the transmission shaft of the motor 3. The above structure facilitates the installation of the gear shafts, and also facilitates the design of the mounting holes of the reduction gear box 4 for installing the gear shafts.

[0048] Reference Figure 1 As shown, in this embodiment, the surface of the reduction gear box 4 facing the movable bracket 2 is flush with the surface of the mounting opening 12 facing the movable bracket 2. The above structure ensures the flatness of the surface of the mounting bracket 1 and also helps to ensure the smooth movement of the movable bracket 2 sliding on the surface of the mounting bracket 1.

[0049] Reference Figure 3 As shown, in some embodiments, in order to ensure the integrity of the reduction gearbox 4 and the motor 3, the reduction gearbox 4 is provided with a mounting groove 42 for mounting the motor 3. The above structure prevents the motor 3 from moving during long-term working process.

[0050] Reference Figure 2 As shown, in some embodiments, in order to further reduce the thickness of the wireless charger, the motor 3 is electrically connected to a control circuit board 5, and the control circuit board 5 is provided with a second avoidance opening 51 for the motor 3 to pass through the second avoidance opening 51.

[0051] Since the thickness of the wireless charger needs to be reduced, the space for installing the motor 3 is reduced, so the motor 3 needs to be embedded in the control circuit board 5 for installation. Correspondingly, the control circuit board 5 needs to be provided with a second avoidance opening 51 so that the motor 3 can be embedded in the control circuit board 5 for installation. Since the motor 3 generally has a dimension in the direction of the transmission shaft that is larger than the dimensions in the other two directions, compared with the horizontally placed motor 3 in the prior art (the second avoidance opening 51 of the control circuit board 5 needs to be set according to the dimension in the direction of the transmission shaft of the motor 3), the second avoidance opening 51 required by the longitudinally placed motor 3 of the utility model has a smaller reserved dimension, and the remaining board area of ​​the control circuit board 5 is relatively increased, and more electrical components can be installed, so that even if the second avoidance opening 51 is set, it will not affect the space for circuit design on the control circuit board 5 and the space for soldering components.

[0052] Reference Figure 2 As shown, in this embodiment, the shape of the second avoidance opening 51 corresponds to the projection shape of the motor 3 on the control circuit board 5, that is, a contour design. The above structure is used to reduce the size of the second avoidance opening 51 as much as possible, thereby meeting the basic circuit design on the control circuit board 5 and the space for component welding.

[0053] Reference Figure 1 As shown, the utility model also provides a wireless charger, including a shell and the above-mentioned transmitting coil mobile bracket 2 transmission structure, the shell includes a top cover 61 and an installation box 62, the transmitting coil mobile bracket 2 transmission structure is arranged in a cavity formed by the top cover 61 and the installation box 62, the shell facilitates the installation of the transmitting coil mobile bracket 2 transmission structure, the top cover 61 is used to place terminals that need to be wirelessly charged, and provide a charging area for terminals that need wireless charging.

[0054] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A transmitting coil moving bracket transmission structure, characterized in that: include: A mounting bracket, wherein the mounting bracket is provided with a guide groove, an inner wall of the guide groove is provided with a lip plate, and the lip plate extends into the guide groove so that the cross section of the guide groove is L-shaped; A movable bracket, wherein the movable bracket is provided with a guide block, the guide block is L-shaped, and the guide block is slidably arranged in the guide groove; A motor, the motor being drivingly connected to the guide block; Wherein, a side of the movable bracket facing the mounting bracket is a sliding surface, and the transmission shaft of the motor is arranged perpendicular to the sliding surface.

2. A transmitting coil moving bracket transmission structure according to claim 1, characterized in that: The motor is transmission-connected to the guide block via a reduction gear box.

3. A transmitting coil moving bracket transmission structure according to claim 2, characterized in that: The mounting bracket body is provided with a notch, and the notch constitutes a mounting opening, and the mounting opening is used for mounting the reduction gear box.

4. A transmitting coil moving bracket transmission structure according to claim 2, characterized in that: The guide groove is provided with a first avoidance opening, and the output gear of the reduction gear box at least partially passes through the first avoidance opening and extends into the guide groove. The guide block is provided with teeth meshing with the output gear on the side facing the first avoidance opening.

5. The transmission structure of the transmitting coil moving bracket according to claim 2, characterized in that: The reduction gear box has a plurality of gear shafts therein, and all of the gear shafts are arranged parallel to the transmission shaft of the motor.

6. The transmission structure of the transmitting coil moving bracket according to claim 3, characterized in that: The surface of the reduction gear box facing the moving bracket is flush with the surface of the mounting opening facing the moving bracket.

7. The transmission structure of the transmitting coil moving bracket according to claim 2, characterized in that: The reduction gear box is provided with a mounting groove for mounting the motor.

8. A transmitting coil moving bracket transmission structure according to any one of claims 1 to 7, characterized in that: The motor is electrically connected to a control circuit board, and the control circuit board is provided with a second avoidance opening for the motor to pass through the second avoidance opening.

9. A transmitting coil moving bracket transmission structure according to claim 8, characterized in that: The shape of the second avoidance opening corresponds to the projection shape of the motor on the control circuit board.

10. A wireless charger, characterized in that: It comprises a shell and the transmitting coil moving bracket transmission structure according to any one of claims 1 to 9, wherein the shell comprises a top cover and an installation box, and the transmitting coil moving bracket transmission structure is arranged in a cavity formed by the top cover and the installation box.

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