Wireless charger with movable coil

Abstract

The utility model relates to a wireless charger with a movable coil. The wireless charger comprises a shell, a coil module arranged in the shell, and a driving mechanism capable of driving the coil module to move, a partition plate is arranged in the shell, the coil module is arranged on the partition plate in a sliding mode, and the driving mechanism is located on the side, away from the coil module, of the partition plate. The partition plate comprises a sliding hole formed in the moving direction of the coil module and a plurality of first sliding grooves, and the first sliding grooves are located in the face, facing the coil module, of the partition plate. A sliding block penetrating through the sliding hole to be connected with the driving mechanism and a plurality of first rolling bodies embedded into the first sliding grooves are arranged on the face, facing the partition plate, of the coil module. According to the wireless charger with the movable coil, the problem that the charging coil of the wireless charger is not matched with the charging coil in a mobile phone in position is solved, the charging efficiency is improved, and the use experience of the wireless charger is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to wireless charging technical field especially relates to a coil movable wireless charger. BACKGROUND

[0002] With the development of science and technology and the progress of living standards, mobile phones have become necessities of life. The development of mobile phone wireless charging technology is also more and more mature. Wireless charging technology is to realize wireless transmission of electric energy through electromagnetic induction. The position of the coil of the transmitting end and the receiving end greatly affects the coupling of the coil, which greatly affects the charging efficiency and other problems. The charging coil of the existing wireless charger is generally fixedly arranged. Because the positions of the charging coils in different mobile phones are different, and the positions of the mobile phones placed on the wireless charger are random, the matching degree of the charging coil of the wireless charger and the charging coil in the mobile phone is poor, which causes low charging efficiency and affects the use experience of the wireless charger. SUMMARY

[0003] In view of the above problems, the utility model aims at designing a coil movable wireless charger to solve the problem of mismatching of the charging coil of the wireless charger and the charging coil in the mobile phone, improve the charging efficiency and improve the use experience of the wireless charger.

[0004] The utility model discloses a coil movable wireless charger, which comprises a shell, a coil module arranged in the shell, and a driving mechanism for driving the coil module to move.

[0005] The utility model discloses a coil movable wireless charger, which comprises a shell, a coil module arranged in the shell, and a driving mechanism for driving the coil module to move.

[0006] The coil module of the wireless charger designed in the scheme can move freely within a certain range to match the position of the charging coil in the mobile phone, solving the problem of misalignment of the charging coil of the wireless charger and the charging coil in the mobile phone. Specifically, a detection component is arranged in the coil module, which can sense the position of the mobile phone charging coil. When the mobile phone is placed above the wireless charger, the detection component detects the position of the mobile phone charging coil and sends a signal to the control unit, and then the control unit controls the driving mechanism to drive the coil module to move to the lower side of the mobile phone charging coil, realizing fast charging. In addition, the sliding hole on the partition plate is a linear hole extending along the moving direction of the coil module, the coil module is slidingly arranged on the partition plate and connected with the driving mechanism through the sliding block arranged at the bottom and passing through the sliding hole, and a sliding structure composed of a first rolling body and a first sliding groove is arranged between the coil module and the partition plate, which can ensure the stability and quietness of the movement of the coil module, effectively reduce the noise generated by the movement of the coil module, and improve the user experience.

[0007] Further, the driving mechanism includes a motor drive, a driving wheel connected with the output end of the motor drive, a driven wheel rotatably arranged on the shell, and a toothed belt sleeved on the outer periphery of the driving wheel and the driven wheel. The sliding block is provided with teeth, and the toothed belt is engaged with the teeth.

[0008] In the scheme, the driving mechanism and the sliding block are connected by a toothed engagement driving mode, which is stable, has less noise, and has precise movement control. When a transmission failure occurs, the toothed belt can deform and fall off, protecting the overall transmission mechanism.

[0009] Further, two support plates are arranged in the shell, and the driven wheel is rotatably arranged between the two support plates.

[0010] The driven wheel is provided with bearing members at both ends, and the outer rings of the two bearing members are fixed on the two support plates. By arranging the bearing members, the rotation smoothness and quietness of the driven wheel are ensured.

[0011] Further, two first sliding grooves are arranged, and the two first sliding grooves are located on both sides of the sliding hole.

[0012] Two first sliding grooves are arranged symmetrically on both sides of the sliding hole, and two first rolling bodies are embedded at positions corresponding to each first sliding groove at the bottom of the coil module. Therefore, four first rolling bodies are embedded at the bottom of the coil module, and the four first rolling bodies are arranged symmetrically along the axis of the bottom surface of the coil module, stably supporting the sliding of the coil module.

[0013] Further, the coil module is provided with two guide blocks, and the two guide blocks are respectively located at both ends of the sliding block and embedded in the sliding hole.

[0014] In order to ensure that the coil module does not deviate during movement, two guide blocks embedded in the sliding hole are arranged at the front and rear ends of the slider, the width of the two guide blocks is slightly smaller than the width of the sliding hole, the bottom of the guide block protrudes in the direction perpendicular to the guide hole, forming a block to prevent the slider from leaving the sliding hole.

[0015] Further, the guide block comprises a guide part and a sliding part connected with the guide part, the guide part passes through the sliding hole, and the sliding part is in sliding connection with one side of the partition plate facing the driving mechanism.

[0016] The guide part cooperates with the sliding hole to realize the movement guidance of the coil module, the sliding part has a size greater than the width of the sliding hole in the direction perpendicular to the movement direction of the coil module, thereby playing a blocking role to prevent the slider from leaving the sliding hole, and the upper surface of the sliding part is in sliding connection with the partition plate, thereby improving the stability of the movement of the coil module.

[0017] Further, one side of the partition plate facing the driving mechanism is provided with a plurality of second sliding grooves, and the sliding part is provided with a second rolling body embedded in the second sliding groove.

[0018] The sliding structure composed of the second sliding groove and the second rolling body is arranged between the sliding part and the partition plate, thereby reducing the friction between the sliding part and the partition plate during movement, further improving the stability and quietness of the movement of the coil module, and effectively reducing the noise generated by the movement of the coil module.

[0019] Further, the second sliding groove is provided with two second sliding grooves, and the two second sliding grooves are respectively located on both sides of the sliding hole.

[0020] The second sliding groove is provided with two second sliding grooves and is symmetrically distributed on both sides of the sliding hole, and one second rolling body is embedded in the position of the sliding part corresponding to each second sliding groove, so that the upper surfaces of the sliding parts of the two guide blocks are embedded with four second rolling bodies, and the four second rolling bodies stably connect the second sliding grooves to support the sliding of the coil module.

[0021] Further, the first rolling body and the second rolling body are spherical balls.

[0022] The first rolling body and the second rolling body are spherical balls, which can effectively reduce the friction between the moving parts and can support a larger load, and are suitable for more precise transmission, the first sliding groove and the second sliding groove are arc-shaped grooves matched with the spherical balls, and the quiet sliding of the coil module is realized through the cooperation between the spherical balls and the sliding grooves.

[0023] Further, it further comprises a heat dissipation mechanism, and the heat dissipation mechanism is arranged at the bottom of the shell.

[0024] Additionally, a heat dissipation mechanism is installed at the vent of the bottom of the shell, which can adopt a heat dissipation fan to absorb the heat generated by the mobile phone and the charger during the charging process through the heat dissipation air duct inside the shell, so as to achieve the purpose of cooling and help maintain the stability of the charging efficiency.

[0025] Compared with the prior art, the utility model has the beneficial effects that:

[0026] The coil module of the wireless charger can move freely within a certain range to match the position of the charging coil in the mobile phone, solving the problem of misalignment of the charging coil of the wireless charger and the charging coil in the mobile phone. Specifically, a detection component is arranged in the coil module, which can sense the position of the mobile phone charging coil. When the mobile phone is placed above the wireless charger, the detection component detects the position of the mobile phone charging coil and sends a signal to the control unit, and then drives the coil module to move to the lower side of the mobile phone charging coil through the control unit and the driving mechanism, realizing fast charging. In addition, the sliding hole on the partition plate is a linear hole extending along the moving direction of the coil module, the coil module is slidingly arranged on the partition plate and connected with the driving mechanism through the sliding block arranged at the bottom and passing through the sliding hole, and a sliding structure composed of a first rolling body and a first sliding groove is arranged between the coil module and the partition plate, which can ensure the stability and quietness of the movement of the coil module, effectively reduce the noise generated by the movement of the coil module, and improve the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is an exploded view of the wireless charger with movable coil of an embodiment of the utility model.

[0028] Figure 2 It is a structure diagram of the coil module of an embodiment of the utility model.

[0029] Figure 3 It is a structure diagram of the bottom view of the coil module of an embodiment of the utility model.

[0030] Figure 4 It is an assembly structure diagram of the bottom view of the partition plate of an embodiment of the utility model.

[0031] Figure 5 It is a structure diagram of the driving mechanism of an embodiment of the utility model.

[0032] Illustration: 1, shell; 11, partition; 12, support sheet; 111, sliding hole; 112, first sliding groove; 113, second sliding groove; 2, coil module; 21, sliding block; 22, first rolling body; 23, guide block; 24, second rolling body; 211, tooth; 231, guide part; 232, sliding part; 3, driving mechanism; 31, motor driving part; 32, driving wheel; 33, driven wheel; 34, toothed belt; 4, heat dissipation mechanism. DETAILED DESCRIPTION

[0033] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be realized in many different forms and is not limited to the embodiments described herein.

[0034] As Figures 1 to 5 shown, the present embodiment provides a coil movable wireless charger, comprising a shell 1, a coil module 2 arranged in the shell 1, and a driving mechanism 3 capable of driving the coil module 2 to move. The shell 1 is provided with a partition 11, which divides the shell into a first cavity and a second cavity. The coil module 2 is located in the first cavity and is slidingly arranged on the partition 11. The driving mechanism 3 is located on the side of the partition 11 away from the coil module 2, i.e. in the second cavity. The partition 11 comprises a sliding hole 111 arranged in the direction of movement of the coil module 2 and a plurality of first sliding grooves 112. The first sliding grooves 112 are located on the side of the partition 11 facing the coil module 2. The sliding hole 111 is a one-word shaped through hole extending in the direction of movement of the coil module 2, and connects the first cavity and the second cavity. The side of the coil module 2 facing the partition 11 is provided with a sliding block 21 connected with the driving mechanism 3 through the sliding hole 111, and a plurality of first rolling bodies 22 embedded in the first sliding grooves 112. The surface of the sliding block 21 is provided with teeth 211.

[0035] As Figures 3 to 5As shown, the driving mechanism 3 and the sliding block 21 are connected by tooth-shaped engagement. The driving mechanism 3 includes a motor driving part 31, a driving wheel 32 connected with the output end of the motor driving part 31, a driven wheel 33 rotatably arranged at the bottom of the shell 1, and a tooth-shaped belt 34 sleeved on the outer periphery of the driving wheel 32 and the driven wheel 33. The driving wheel 32 and the driven wheel 33 are both tooth-shaped wheels. The motor driving part 31 is fixed at the bottom of the second cavity. The driving wheel 32 is fixed at the end of the motor shaft. The bottom of the second cavity is provided with two supporting pieces 12. The driven wheel 33 is provided with bearing parts at both ends. The outer rings of the two bearing parts are respectively fixed on the two supporting pieces 12. The tooth-shaped belt 34 is a double-sided tooth-shaped belt. Its inner surface is in engagement with the driving wheel 32 and the driven wheel 33. Its outer surface is in engagement with the teeth 211 on the surface of the sliding block 21. The motor driving part 31 drives the tooth-shaped belt 34 to rotate, and then drives the coil module 2 to move along the direction of movement of the tooth-shaped belt 34 through the engagement of the teeth. The driving process is stable, the noise is small, the movement control is accurate, and when a transmission failure occurs, the tooth-shaped belt 34 can be deformed and detached, which protects the overall transmission mechanism.

[0036] As shown in Figure 1 and Figure 3 The first sliding groove 112 is provided with two first rolling bodies 22 at the bottom of the coil module 2 corresponding to the position of each first sliding groove 112. Thus, four first rolling bodies 22 are embedded at the bottom of the coil module 2. The four first rolling bodies 22 are symmetrically arranged along the axis of the bottom surface of the coil module 2, which stably supports the sliding of the coil module 2. The first rolling body 22 is a spherical ball, which can effectively reduce the friction between moving parts and support a large load, and is suitable for precise transmission. The first sliding groove 112 is an arc-shaped groove matched with the spherical ball. Through the cooperation between the spherical ball and the sliding groove, the coil module 2 can slide quietly.

[0037] The coil module 2 of the wireless charger of the embodiment can be freely moved within a certain range to match the position of the charging coil in the mobile phone, solving the problem of mispositioning of the charging coil of the wireless charger and the charging coil in the mobile phone. Specifically, a detection component is arranged in the coil module 2, which can sense the position of the charging coil of the mobile phone. When the mobile phone is placed above the wireless charger, the detection component sends a signal to the control unit after detecting the position of the charging coil of the mobile phone, and then controls the driving mechanism 3 to drive the coil module 2 to move to the position below the charging coil of the mobile phone, so as to realize fast charging. In addition, the sliding hole 111 on the partition plate 11 is a linear hole extending along the moving direction of the coil module 2, the coil module 2 is slidingly arranged on the partition plate 11 and is driven connected with the driving mechanism 3 through the sliding block 21 arranged at the bottom and passing through the sliding hole 111, and a sliding structure composed of the first rolling body 22 and the first sliding groove 112 is arranged between the coil module 2 and the partition plate 11, which can ensure the stability and quietness of the movement of the coil module 2, effectively reduce the noise generated by the movement of the coil module 2, and improve the user experience.

[0038] As shown in Figures 2 to 4 The bottom of the coil module 2 is provided with two guide blocks 23, the two guide blocks 23 are respectively located at the two ends of the sliding block 21 and are embedded in the sliding hole 111, and the guide blocks 23 ensure that the coil module 2 does not deviate during movement. The guide block 23 comprises a guide portion 231 and a sliding portion 232 connected with the guide portion 231, the guide portion 231 passes through the sliding hole 111, and the sliding portion 232 is slidingly connected with the side of the partition plate 11 facing the driving mechanism 3. The guide portion 231 cooperates with the sliding hole 111 to realize the movement guidance of the coil module 2, the sliding portion 232 is larger in size than the width of the sliding hole 111 in the direction perpendicular to the moving direction of the coil module 2, and plays a blocking role to avoid the sliding block 21 from being separated from the sliding hole 111, and the upper surface of the sliding portion 232 is slidingly connected with the partition plate 11, thereby improving the stability of the movement of the coil module 2.

[0039] As shown in Figures 2 to 4As shown, the partition plate 11 is provided with two second sliding grooves 113 on the side facing the driving mechanism 3, and the sliding part 232 is provided with a second rolling body 24 embedded in the second sliding groove 113. The sliding structure composed of the second sliding groove 113 and the second rolling body 24 is arranged between the sliding part 232 and the partition plate 11, which reduces the friction between the sliding part 232 and the partition plate 11 during movement, further improves the stability and quietness of the coil module 2 movement, and effectively reduces the noise generated by the movement of the coil module 2. The second sliding groove 113 is provided with two symmetrically distributed second sliding grooves 113 on both sides of the sliding hole 111, and a second rolling body 24 is embedded in the position of the sliding part 232 corresponding to each second sliding groove 113. Therefore, the upper surface of the sliding part 232 of the two guide blocks 23 is embedded with four second rolling bodies 24, and the four second rolling bodies 24 stably connect the second sliding groove 113 to support the sliding of the coil module 2. The second rolling body 24 is a spherical ball, and the second sliding groove 113 is an arc-shaped groove matched with the spherical ball. Through the cooperation between the spherical ball and the guide groove, the coil module 2 realizes quiet sliding.

[0040] As shown in the drawings, Figure 1 As shown, the heat dissipation mechanism 4 is installed at the air vent at the bottom of the shell 1. The heat dissipation mechanism 4 can adopt a heat dissipation fan. The heat dissipation fan absorbs the heat generated by the mobile phone and the charger during charging through the heat dissipation air duct inside the shell 1, so as to achieve the purpose of cooling and maintain the stability of the charging efficiency. In addition, in the embodiment, the shell 1 includes two parts, namely the upper shell and the base, which are connected by a buckling structure. The upper shell is further provided with a filter plate, and the coil module 2 is arranged below the filter plate. The upper surface of the filter plate is a resting surface for placing the mobile phone.

[0041] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0042] In addition, the terms "first", "second", and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0043] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A coil movable wireless charger, characterized by, The application relates to a coil module driving device, which comprises a shell, a coil module arranged in the shell and a driving mechanism for driving the coil module to move; the shell is provided with a partition plate, the coil module is slidably arranged on the partition plate, and the driving mechanism is located on the side of the partition plate away from the coil module; the partition plate comprises a sliding hole arranged along the moving direction of the coil module and a plurality of first sliding grooves; the first sliding grooves are located on the side of the partition plate facing the coil module; the side of the coil module facing the partition plate is provided with a sliding block connected with the driving mechanism through the sliding hole and a plurality of first rolling bodies embedded in the first sliding grooves. 2.The coil movable wireless charger of claim 1, wherein, The driving mechanism comprises a motor driving element, a driving wheel connected with the output end of the motor driving element, a driven wheel rotatably arranged on the shell, a toothed belt sleeved on the outer periphery of the driving wheel and the driven wheel, and the sliding block is provided with teeth, and the toothed belt is in meshing connection with the teeth.

3. The coil movable wireless charger of claim 2, wherein, The shell is provided with two supporting plates, and the driven wheel is rotatably arranged between the two supporting plates. 4.The coil movable wireless charger of claim 1, wherein, The first sliding grooves are arranged in two, and the two first sliding grooves are respectively located on the two sides of the sliding hole. 5.The coil movable wireless charger of claim 1, wherein, The coil module is provided with two guide blocks, and the two guide blocks are respectively located at the two ends of the sliding block and embedded in the sliding hole.

6. The coil movable wireless charger of claim 5, wherein, The guide block comprises a guide part and a sliding part connected with the guide part, the guide part passes through the sliding hole, and the sliding part is in sliding connection with the side of the partition plate facing the driving mechanism.

7. The coil movable wireless charger of claim 6, wherein, The side of the partition plate facing the driving mechanism is provided with a plurality of second sliding grooves, and the sliding part is provided with a second rolling body embedded in the second sliding groove.

8. The coil movable wireless charger of claim 7, wherein, The second sliding grooves are arranged in two, and the two second sliding grooves are respectively located on the two sides of the sliding hole. 9.The coil movable wireless charger of claim 7, wherein, The first rolling body and the second rolling body are spherical balls. 10.The coil movable wireless charger of claim 1, wherein, The application further comprises a heat dissipation mechanism arranged at the bottom of the shell.

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