Wireless charger

Abstract

The utility model discloses a wireless charger. The wireless charger comprises a housing, a charging coil, a linkage member and a microswitch. The shell comprises a bearing part, and the bearing part is used for bearing a to-be-charged device. The charging coil is used for wirelessly charging the to-be-charged device borne by the bearing part. The linkage piece is movably connected to the shell and comprises a first end and a second end, and the first end is configured to be driven by the to-be-charged device in the process that the to-be-charged device is borne on the bearing part so as to move relative to the shell. And in the process that the linkage piece moves relative to the shell, the second end part triggers the microswitch so as to generate an induction signal. According to the scheme, the induction signal is obtained in a mechanical driving mode, compared with the scheme that an infrared sensor is adopted for induction, the situation that induction fails due to the fact that the infrared sensor is shielded by foreign matter is avoided, and induction is more accurate; and compared with a scheme of performing wireless communication with the to-be-charged equipment, a communication module does not need to be arranged, and the cost is lower.

Description

Technical Field

[0001] The utility model relates to the field of wireless charging, in particular to a wireless charger. Background Art

[0002] The wireless charger includes a charging coil for generating a changing magnetic field. The receiving coil of the device to be charged generates an induced current after acquiring the changing magnetic field, thereby enabling the device to be charged remotely. In the related art, when the device to be charged is carried on the wireless charger, an induction component needs to be set in order to identify the device to be charged. The existing induction component has insufficient induction accuracy or has a high material cost. Utility Model Content

[0003] The main purpose of the utility model is to provide a wireless charger that can reduce material costs while meeting higher sensing accuracy.

[0004] To achieve the above object, the utility model provides a wireless charger, comprising:

[0005] The housing comprises a carrying portion, wherein the carrying portion is suitable for carrying a device to be charged;

[0006] A charging coil, disposed in the housing, the charging coil being suitable for wirelessly charging the device to be charged;

[0007] a linkage member, movably connected to the housing, the linkage member comprising a first end and a second end, the first end being configured to be driven by the device to be charged during the process in which the device to be charged is carried on the carrying portion, so that the linkage member moves relative to the housing;

[0008] A micro switch is connected to the housing, and the micro switch is configured to be triggered by the second end during the movement of the linkage relative to the housing to generate an induction signal.

[0009] In some embodiments, the linkage member is disposed through the bearing portion, the first end portion is located outside the housing, the second end portion is located inside the housing, and the micro switch is located inside the housing;

[0010] The linkage member is configured such that when the device to be charged is carried on the carrying portion, the first end portion is pressed by the device to be charged so that the linkage member moves in a direction extending into the housing.

[0011] In some embodiments, the linkage member is disposed through the housing, the first end is located outside the housing, the second end is located inside the housing, and the micro switch is located inside the housing;

[0012] The bearing portion includes a bearing surface for bearing the device to be charged, the bearing surface is inclined, and the first end is located below the bearing surface, the first end is configured to be suitable for supporting the lower end of the device to be charged carried on the bearing surface, and the linkage member is configured to move in the direction of extending out of the shell under the action of the gravity of the device to be charged.

[0013] In some embodiments, the micro switch includes a trigger portion, the second end portion is provided with an avoidance hole, the trigger portion is located in the avoidance hole, and the second end portion is separated from the second end portion;

[0014] The second end is configured to move relative to the micro switch when the linkage moves in a direction extending out of the housing, so that the trigger portion extends out of the avoidance hole and the second end presses against the trigger portion, thereby triggering the micro switch.

[0015] In some embodiments, the wireless charger further includes a positioning component, the positioning component is connected to the housing, and the positioning component is used to position the device to be charged to fix the relative position of the device to be charged and the carrying portion;

[0016] The positioning assembly includes a first clamping arm, a second clamping arm and the linkage member; when the linkage member is displaced downward by the gravity of the device to be charged, the linkage member drives the first clamping arm and the second clamping arm to move toward each other, so that the first clamping arm and the second clamping arm are suitable for jointly clamping the lateral sides of the device to be charged.

[0017] In some embodiments, the micro switch includes a trigger portion, the second end portion presses against the trigger portion, and the second end portion is provided with an avoidance hole;

[0018] The second end portion is configured to be able to move relative to the micro switch until the trigger portion extends into the avoidance hole, so that the second end portion is separated from the trigger portion, thereby triggering the micro switch.

[0019] In some embodiments, the micro switch includes a trigger portion, the second end portion includes a protrusion separated from the trigger portion, and the second end portion is configured to be able to move relative to the micro switch to the protrusion to press the trigger portion, thereby triggering the micro switch;

[0020] or,

[0021] The micro switch includes a trigger portion, the second end includes a protrusion that presses the trigger portion, and the second end is configured to be able to move relative to the micro switch until the protrusion is separated from the trigger portion, thereby triggering the micro switch.

[0022] In some embodiments, the wireless charger further includes a driving component, the driving component is connected to the charging coil, and the driving component is configured to drive the charging coil to move relative to the carrying portion.

[0023] In some embodiments, the wireless charger includes a first circuit board and a second circuit board electrically connected to each other, the first circuit board is electrically connected to the charging coil and moves with the charging coil, and the second circuit board is fixed to the shell and electrically connected to the micro switch.

[0024] In some embodiments, the driving assembly includes a driving part and a transmission part connected to the driving part, the transmission part includes a support seat, the support seat is connected to the charging coil, the wireless charger also includes a guide rail, the axis of the guide rail is parallel to the first direction, the support seat includes a first slider slidably connected to the guide rail, and the driving part drives the support seat to reciprocate along the first direction on the guide rail;

[0025] The transmission part further comprises a screw, the axis of the screw is parallel to the first direction, the support seat comprises a second slider sleeved on the screw, the second slider has an internal thread matched with the screw, and the driving part is configured to drive the screw to rotate around its own axis so as to drive the second slider to reciprocate along the first direction;

[0026] The wireless charger comprises two guide rails arranged opposite to each other along the second direction, and the support seat comprises two first sliders, and the two first sliders are slidably connected to the two guide rails in a one-to-one correspondence;

[0027] The support seat further includes a support plate, the two first sliding blocks are connected to one side of the support plate along the first direction, and the second sliding block is connected to the other side of the support plate along the first direction;

[0028] The screw rod is located at one side of the two guide rails along the first direction, and along the second direction, the screw rod is located between the two guide rails.

[0029] Compared with the prior art, the beneficial effects of the utility model are:

[0030] In the technical solution of the utility model, the wireless charger includes a shell, a charging coil, a linkage and a micro switch. The shell includes a bearing portion, and the bearing portion is used to carry a device to be charged. The charging coil is used to wirelessly charge the device to be charged carried on the bearing portion. The linkage is movably connected to the shell, and the linkage includes a first end and a second end. The first end is configured to be driven by the device to be charged to move relative to the shell when the device to be charged is carried on the bearing portion. During the movement of the linkage relative to the shell, the second end triggers the micro switch to generate an induction signal. In this solution, the induction signal is obtained by mechanical drive. Compared with the solution of using an infrared sensor for induction, the induction will not fail due to foreign objects blocking the infrared sensor, so that the induction is more accurate; compared with the solution of wireless communication with the device to be charged, there is no need to set a communication module, and the cost is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0032] Figure 1 It is a cross-sectional schematic diagram of a wireless charger in the first embodiment of the utility model;

[0033] Figure 2 It is a cross-sectional schematic diagram of a wireless charger in the second embodiment of the utility model;

[0034] Figure 3 It is a cross-sectional schematic diagram of a wireless charger in the third embodiment of the utility model;

[0035] Figure 4 This is a three-dimensional schematic diagram of a wireless charger in a fourth embodiment of the present utility model;

[0036] Figure 5 This is a first exploded schematic diagram of a wireless charger in a fourth embodiment of the present utility model;

[0037] Figure 6 It is a three-dimensional schematic diagram of a driving component and a charging coil assembly in a fourth embodiment of the utility model;

[0038] Figure 7 It is an exploded schematic diagram of a driving assembly and a charging coil assembly in a fourth embodiment of the utility model;

[0039] Figure 8 It is a cross-sectional schematic diagram of a wireless charger in a fourth embodiment of the present utility model;

[0040] Fig. 9 It is a three-dimensional schematic diagram of a positioning assembly and a micro switch combination of a wireless charger in a fourth embodiment of the present utility model;

[0041] Fig.10 This is a second explosion diagram of the wireless charger in the fourth embodiment of the present utility model;

[0042] Fig.11 It is a side view schematic diagram of some components of a wireless charger in a fifth embodiment of the present utility model;

[0043] Fig.12 for Fig.11 A local enlarged schematic diagram of point A in the middle.

[0044] Description of Figure Numbers:

[0045] Wireless charger 10;

[0046] Shell 100; bearing portion 110; bearing surface 111; shell body 120;

[0047] Charging coil 200;

[0048] Driving assembly 300; driving part 310; transmission part 320; first gear 321; second gear 322; screw 323; support seat 324; support plate 3241; first slider 3242; second slider 3243;

[0049] Micro switch 400; trigger unit 410;

[0050] Guide rail 500;

[0051] Positioning assembly 600; linkage member 610; first end 611; second end 612; avoidance hole 613; protrusion 614; first clamping arm 620; second clamping arm 630;

[0052] A first circuit board 710; a second circuit board 720;

[0053] First direction X;

[0054] The second direction Y;

[0055] The third direction Z.

[0056] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0057] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0058] Before wireless charging the device to be charged, the wireless charger needs to determine whether the device to be charged is in a suitable position. In the related art, some solutions use infrared sensors to determine whether the device to be charged is in a suitable position. In this solution, when foreign objects block the infrared sensor, its sensing will fail. Some solutions use NFC (near field communication) with the device to be charged to determine whether the device to be charged is in a suitable position. In this solution, a new communication module is required, which is costly.

[0059] In view of this, see Figure 1-Figure 12 , this embodiment provides a wireless charger 10, which includes a housing 100, a charging coil 200, a linkage 610 and a micro switch 400. Among them, the housing 100 includes a bearing portion 110 for bearing a device to be charged. The device to be charged may be an electronic device capable of wireless charging, such as a mobile phone, a watch, a tablet or a computer. For the sake of convenience of description, the device to be charged is taken as an example of a mobile phone. The mobile phone can be placed on the bearing portion 110 when wireless charging is performed. In some embodiments, the bearing portion 110 can be used only to support the mobile phone, and the mobile phone can be placed at any position on the bearing portion 110. In other embodiments, in addition to supporting the mobile phone, the bearing portion 110 can also be used to locate the relative position of the mobile phone and the bearing portion 110. For example, a groove can be provided on the bearing portion 110, and the mobile phone can be embedded in the groove, so that when the bearing portion 110 carries the mobile phone, the relative position of the mobile phone and the bearing portion 110 is fixed (or the mobile phone can only move within a small range relative to the bearing portion 110), and thus the relative position of the power receiving coil of the mobile phone and the wireless charger 10 is fixed. See Figure 1-Figure 3 In this embodiment, the carrying portion 110 is in the shape of a flat plate and is only used to support a mobile phone.

[0060] The charging coil 200 is disposed in the housing 100, and the charging coil 200 is suitable for wireless charging of the device to be charged. Specifically, the charging coil 200 can generate a changing magnetic field after being energized, and the receiving coil of the mobile phone generates an induced current after obtaining the changing magnetic field, thereby realizing wireless charging of the mobile phone. When the charging coil 200 is wirelessly charged, it is necessary to match the position of the receiving coil of the mobile phone. In the direction parallel to the axis of the charging coil 200 (i.e., the third direction Z), the larger the overlapping area of ​​the charging coil 200 and the receiving coil, the higher the charging power and charging efficiency. Therefore, when the charging coil 200 starts charging, it is necessary to maximize the overlapping area of ​​the charging coil 200 and the receiving coil in the direction parallel to the axis of the charging coil 200, thereby improving the charging power and charging efficiency.

[0061] The charging coil 200 can be fixed relative to the housing 100 or can be movable relative to the housing 100. When the charging coil 200 can be movable relative to the housing 100, the charging coil 200 can be moved according to the position of the device to be charged, so that the charging coil 200 matches the position of the power receiving coil of the device to be charged, thereby maximizing the overlapping area of ​​the two, thereby improving the charging power and charging efficiency. The scheme in which the charging coil 200 can be moved relative to the housing 100 is described in detail below.

[0062] The linkage member 610 is movably connected to the housing 100. Specifically, the linkage member 610 can be slidably connected to the housing 100, so that the linkage member 610 can slide along a straight line or a curve relative to the housing 100 after being driven; the linkage member 610 can also be rotatably connected to the housing 100, so that the linkage member 610 can rotate relative to the housing 100 after being driven. Figure 1-Figure 3 In this embodiment, the linkage member 610 is slidably connected to the housing 100, and the linkage member 610 is driven to slide in a straight line relative to the housing 100. The linkage member 610 includes a first end 611 and a second end 612 opposite to each other, and the first end 611 is configured to be driven by the device to be charged during the process of the device to be charged being carried on the carrying portion 110 to move relative to the housing 100. In other words, the movement of the linkage member 610 is driven by the device to be charged, and is driven by the device to be charged during the process of the device to be charged being carried on the carrying portion 110. Specifically, the linkage member 610 may be moved by being pressed by the gravity of the device to be charged.

[0063] The micro switch 400 is connected to the housing 100. Specifically, the micro switch 400 can be arranged outside the housing 100 or inside the housing 100. Figure 1-Figure 3In this embodiment, the micro switch 400 is fixedly connected to the housing 100. The micro switch 400 is configured to be triggered by the second end 612 during the movement of the linkage member 610 relative to the housing 100 to generate an induction signal. There are many ways to trigger the micro switch 400. In some embodiments, the micro switch 400 is a normally open switch. Specifically, the micro switch 400 includes a triggering portion 410, and the linkage member 610 is separated from the triggering portion 410 in an initial state, and when the linkage member 610 is driven by the device to be charged to press the triggering portion 410, the micro switch 400 is triggered, thereby generating an induction signal. In other embodiments, the micro switch 400 is a normally closed switch. Specifically, the micro switch 400 includes a triggering portion 410, and the linkage member 610 is pressed in the initial state. The triggering portion 410, and when the linkage member 610 is driven by the device to be charged to separate from the triggering portion 410, the micro switch 400 is triggered, thereby generating an induction signal. In this solution, the sensing signal is obtained by mechanical drive. Compared with the solution using infrared sensors for sensing, the sensing will not fail due to foreign objects blocking the infrared sensor, so the sensing process is more stable. Compared with the solution of wireless communication with the device to be charged, there is no need to set up a communication module, which is lower in cost.

[0064] When the micro switch 400 generates an induction signal, it can be used to indicate that the device to be charged has been placed on the carrying portion 110. In the subsequent actions, in one embodiment, the wireless charger 10 can immediately start wireless charging; in another embodiment, the wireless charger 10 can first adjust the position of the charging coil 200 so that the position of the charging coil 200 matches the position of the receiving coil of the device to be charged before wireless charging, thereby improving the charging efficiency. In this embodiment, the charging coil 200 can move relative to the housing 100. Specifically, see Figure 4-Figure 7 A driving component 300 is provided in the shell 100. The driving component 300 is connected to the charging coil 200. The driving component 300 is used to drive the charging coil 200 to move relative to the bearing portion. The driving component 300 can drive the charging coil 200 to move to a position matching the position of the receiving coil, thereby increasing the overlapping area between the charging coil 200 and the receiving coil to improve the charging efficiency.

[0065] When the driving assembly drives the charging coil 200 to move, the circuit board electrically connected to the charging coil 200 and the circuit board electrically connected to the micro switch 400 may be separated from each other. Figure 4-Figure 8In some embodiments, the wireless charger 10 includes a first circuit board 710 and a second circuit board 720 electrically connected to each other, the first circuit board 710 is electrically connected to the charging coil 200 and moves with the charging coil 200, and the second circuit board 720 is fixed to the housing 100 and electrically connected to the micro switch 400. In this solution, compared with the structure that the wireless charger 10 has only one circuit board and the circuit board is fixedly connected to the housing 100, the positions of the charging coil 200 and the circuit board electrically connected thereto in this embodiment are relatively fixed, so the electrical connection between the charging coil 200 and the circuit board during the movement relative to the housing 100 is more stable; compared with the solution that the wireless charger 10 has only one circuit board and the circuit board is connected to the charging coil 200 and moves with the charging coil 200, the relative positions of the micro switch 400 and the circuit board electrically connected thereto in this embodiment are fixed, so the electrical connection between the micro switch 400 and the circuit board during the movement of the charging coil 200 relative to the housing 100 is more stable. The connection method of the first circuit board 710 and the second circuit board 720 depends on actual needs. The two can be electrically connected by wires, or they can be connected by wireless communication.

[0066] The charging coil 200 can move relative to the carrier 110 in a variety of ways. Figure 4-Figure 8 In some embodiments, the driving assembly 300 includes a driving part 310 and a transmission part 320 connected to the driving part 310. The transmission part 320 includes a support seat 324, and the support seat 324 is connected to the charging coil 200. The wireless charger 10 also includes a guide rail 500, the axis of the guide rail 500 is parallel to the first direction X, the support seat 324 includes a first slider 3242 slidably connected to the guide rail 500, and the driving part 310 drives the support seat 324 to reciprocate along the first direction X on the guide rail 500. Through the sliding cooperation between the guide rail 500 and the first slider 3242, the movement of the support seat 324 can be smoother. In some embodiments, the two ends of the guide rail 500 may be connected to fixed protrusions. In this case, the fixed protrusions at the two ends of the guide rail 500 are not only used to fix the guide rail 500, but also used to limit the movement range of the first slider 3242. When the first slider 3242 moves along the first direction X to abut against one of the fixed protrusions, the support seat 324 moves to one of the end positions within its movement range. When the first slider 3242 moves in the reverse direction of the first direction X to abut against another fixed protrusion, the support seat 324 moves to the other end position within its movement range. In addition, in this embodiment, when the first slider 3242 moves to abut against one of the fixed protrusions, the position of the charging coil 200 is the reset position.

[0067] See also Figure 5-Figure 7In some embodiments, the wireless charger 10 includes two guide rails 500 arranged relatively along the second direction Y, and the support base 324 includes two first sliders 3242. The two first sliders 3242 are slidably connected to the two guide rails 500 in a one-to-one correspondence. The axes of the two guide rails 500 are parallel to the first direction X, and the two guide rails 500 are relatively distributed at intervals along the second direction Y. By providing two guide rails 500, the guidance of the support base 324 is more stable.

[0068] See also Figure 5-Figure 7 In some embodiments, the transmission part 320 also includes a screw 323, the axis of the screw 323 is parallel to the first direction X, and the support seat 324 includes a second slider 3243 sleeved on the screw 323, and the second slider 3243 has an internal thread that cooperates with the screw 323. The screw 323 is inserted into the second slider 3243, and bearings are provided at both ends of the screw 323. When the driving part 310 drives the screw 323 to rotate, the second slider 3243 is driven by the screw 323 to reciprocate along the axis direction of the screw 323 (i.e., the first direction X), so that the support seat 324 as a whole reciprocates along the first direction X, and then the charging coil 200 reciprocates along the first direction X. In this embodiment, the screw 323 is used to drive the support seat 324, and the driving stability and driving accuracy are higher. In order to further improve the driving accuracy, refer to Figure 6-Figure 7 In some embodiments, the driving unit 310 may include a driving motor, a first gear 321 and a second gear 322. The driving motor may be a stepping motor, so that the driving accuracy is higher. The first gear 321 is connected to the output shaft of the stepping motor, the second gear 322 is connected to the end of the screw 323, and the first gear 321 is meshed with the second gear 322. During the driving process, the stepping motor drives the first gear 321 to rotate, the first gear 321 drives the second gear 322 to rotate, the second gear 322 drives the screw 323 to rotate, and the screw 323 drives the support seat 324 to translate along the first direction X. Specifically, the number of teeth of the first gear 321 is less than the number of teeth of the second gear 322, so that the rotation speed of the screw 323 is less than the rotation speed of the stepping motor, thereby improving the driving accuracy.

[0069] See also Figure 5-Figure 7, the support seat 324 also includes a support plate 3241, two first sliders 3242 are connected to one side of the support plate 3241 along the first direction X, and the two first sliders 3242 are correspondingly connected to the two sides of the support plate 3241 along the second direction Y. The second slider 3243 is connected to the other side of the support plate 3241 along the first direction X (i.e., the side opposite to the two first sliders 3242). In this solution, the support seat 324 forms a three-point positioning, and the transmission is more stable compared to the structure in which the screw rod 323 is arranged on the side of the two guide rails 500. The screw rod 323 is located on one side of the two guide rails 500 along the first direction X, and along the second direction Y, the screw rod 323 is located between the two guide rails 500. In other words, in this embodiment, when observed along the first direction X, the screw 323 is located between the two guide rails 500, and in this embodiment, when observed along the second direction Y, the screw 323 is located on one side of the two guide rails 500. In this solution, the distance between the second slider 3243 and the two first sliders 3242 along the first direction X is longer, so that the positioning of the support seat 324 is more stable.

[0070] The charging coil 200 translates along the first direction X to achieve position matching with the receiving coil. When the receiving coil deviates from the charging coil 200 along the second direction Y, the matching degree between the charging coil 200 and the receiving coil is not ideal no matter where the charging coil 200 moves along the first direction X. In view of this, see Figure 5 In some embodiments, the support base 324 further includes a support plate 3241, and the charging coil 200 is disposed on a side of the support plate 3241 facing the carrier 110. The guide rail 500, the first slider 3242, the screw 323, the second slider 3243 and the driving unit 310 are all disposed on a side of the support plate 3241 away from the carrier 110. In this solution, since the charging coil 200 and the guide rail 500, the first slider 3242, the screw 323, the second slider 3243 and the drive unit 310 are distributed on different sides of the support plate 3241, the guide rail 500, the first slider 3242, the screw 323, the second slider 3243 and the drive unit 310 will not occupy the space of the charging coil 200 along the second direction Y, and the size of the charging coil 200 along the second direction Y can be maximized. Therefore, when the mobile phone is placed on the carrier 110 in a deviated manner along the second direction Y, the overlapping area between the charging coil 200 and the power receiving coil of the mobile phone can also be maximized, thereby improving the charging power and charging efficiency. Further, the size of the charging coil 200 along the second direction Y can be substantially equal to the size of the inner cavity of the housing 100 along the second direction Y. For example, along the second direction Y, the distance between the two sides of the charging coil 200 and the inner wall of the housing 100 can be less than or equal to two millimeters.

[0071] When the micro switch 400 is located outside the housing 100, the linkage member 610 can be completely located outside the housing 100. When the micro switch 400 is located inside the housing 100, the linkage member 610 can have a first end 611 located outside the housing 100 and a second end 612 located inside the housing 100, and the linkage member 610 is disposed through the housing 100. When the linkage member 610 is disposed through the housing 100, see Figure 1-Figure 3 In some embodiments, the linkage member 610 is provided through the bearing portion 110. The first end 611 of the linkage member 610 is located outside the housing 100, the second end 612 is located inside the housing 100, and the micro switch 400 is located inside the housing 100 and cooperates with the second end 612. The linkage member 610 is configured such that when the device to be charged is carried on the bearing portion 110, the first end 611 is pressed by the device to be charged so that the linkage member 610 moves in the direction of extending into the housing 100. In this solution, since the linkage member 610 is provided through the bearing portion 110, compared with the solution in which the linkage member 610 is provided through other parts of the housing 100, on the one hand, it is easier to press the linkage member 610 when the device to be charged is carried on the bearing portion 110, and on the other hand, when the user places the device to be charged on the bearing portion 110, it is not necessary to align the position of the linkage member 610, which is convenient for the user to operate. The linkage member 610 can pass through any position of the carrying portion 110. In some embodiments, the linkage member 610 passes through the center position of the carrying portion 110. This solution can further improve the user's operating convenience, and it is easier to press the linkage member 610 when the charging device is carried on the carrying portion 110.

[0072] In some embodiments, the linkage member 610 may also pass through other parts of the housing 100. Figure 4-Figure 8The linkage member 610 is disposed in the housing 100 in a direction perpendicular to the axis of the charging coil 200, and the linkage member 610 can slide relative to the housing 100 in a direction perpendicular to the axis of the charging coil 200. The first end 611 of the linkage member 610 is located outside the housing 100, and the second end 612 is located inside the housing 100. The micro switch 400 is located inside the housing 100 and cooperates with the second end 612. The bearing portion 110 includes a bearing surface 111 for bearing the device to be charged. The bearing surface 111 is inclined, and the first end 611 is located below the bearing surface 111. The first end 611 is configured to support the lower end of the device to be charged carried on the bearing surface 111. The linkage member 610 is configured to move in a direction extending out of the housing 100 under the gravity of the device to be charged. In this solution, when the device to be charged is carried on the carrying part 110, it has a tendency to slide downward relative to the carrying part 110. When the device to be charged slides downward, it is supported by the second end 612 of the linkage part 610, thereby pushing the linkage part to slide in the direction of extending out of the housing 100, and then the second end 612 triggers the micro switch 400. In this solution, on the one hand, the linkage part 610 is more easily driven by the device to be charged, and there will be no problem that the device to be charged is staggered with the linkage part 610 after being carried on the carrying part 110, so that the linkage part 610 cannot trigger the micro switch 400; on the other hand, after the device to be charged is carried on the carrying part 110, its display screen can be arranged tilted, so that when the user is in a sitting position, for example, when the user is in an office state or a driving state, it is convenient to observe the information displayed on the display screen.

[0073] See also Figure 5-Figure 7 In some embodiments, the wireless charger 10 further includes a positioning component 600, which is connected to the housing 100 and is used to position the device to be charged so as to fix the relative position between the device to be charged and the carrying portion 110. In this solution, after the mobile phone is carried on the carrying portion 110, the position of the mobile phone is fixed by a fixing device, and after the position of the mobile phone is fixed, the position of the mobile phone and the carrying portion 110 is fixed. In other words, the addition of the positioning component 600 enables the position of the mobile phone to be relatively fixed with the carrying portion 110 each time the wireless charging is performed. After the position of the mobile phone and the carrying portion 110 is fixed, the position of the power receiving coil of different models of mobile phones changes within a smaller range, which can facilitate the position design of the reset position on the one hand, and shorten the moving distance of the charging coil 200 during the charging preparation process on the other hand. In order to realize the positioning of the mobile phone, in some embodiments, the positioning component 600 can be an annular flange connected to the carrying portion 110, and the mobile phone can be embedded in the annular flange when it is positioned on the carrying portion 110 to achieve the position fixation with the carrying portion 110. In other embodiments, the positioning component 600 may include a magnet, and the magnet fixes the mobile phone by adsorbing a magnetic component on the mobile phone.

[0074] See also Figure 5-Figure 9 In some embodiments, the positioning assembly 600 includes a linkage 610, a first clamping arm 620, and a second clamping arm 630. The linkage 610 is suitable for supporting the device to be charged. The portion of the linkage 610 used for supporting the device to be charged is located outside the housing 100, and the end of the linkage 610 opposite to the portion used for supporting the device to be charged extends into the housing 100. The linkage 610 is connected to the lower end of the housing 100, and its upper end is inserted into the housing 100. The linkage 610 is configured to be displaced downward relative to the bearing portion 110 by the gravity of the device to be charged, and a portion of the upper end of the linkage 610 gradually extends out of the housing 100 when the linkage 610 moves downward. In the process of the upper end of the linkage 610 extending out of the housing 100, the first clamping arm 620 and the second clamping arm 630 are driven to move in directions toward each other, so that the first clamping arm 620 and the second clamping arm 630 are suitable for jointly clamping the lateral sides of the device to be charged. After the positioning assembly 600 positions the mobile phone, the linkage 610 can position the bottom of the mobile phone, the first clamping arm 620 and the second clamping arm 630 position the lateral sides of the mobile phone, and the bearing portion 110 positions the back plate of the mobile phone. In this embodiment, the three sides of the mobile phone are all positioned, and the user does not need to adjust the positioning direction during the positioning process, the positioning process is simpler, and the positioning accuracy is higher. In this embodiment, the wireless charger 10 can be a car charging bracket with a wireless charging function.

[0075] See also Figure 1 as well as Figure 8-Figure 10 In some embodiments, the micro switch 400 includes a trigger portion 410, and the second end 612 of the linkage member 610 is provided with an avoidance hole 613. In the initial state where the device to be charged is not carried on the carrying portion 110, the trigger portion 410 is located in the avoidance hole 613, so that the second end 612 is separated from the second end 612. The second end 612 is configured to be able to move relative to the micro switch 400 until the trigger portion 410 extends out of the avoidance hole 613 and the second end 612 presses the trigger portion 410 to generate an induction signal. In this scheme, an induction signal is generated during the process of the trigger portion 410 changing from an unpressed state to a pressed state, and through the cooperation of the avoidance hole 613 and the trigger portion 410, the induction of the device to be charged is realized to indicate that the device to be charged is carried on the carrying portion 110. In the above process, the linkage member 610 can move in the direction of extending out of the shell 100, or in the direction of extending into the shell 100. Specifically, see Figure 1 In one embodiment, the linkage member 610 moves toward the direction of extending into the housing 100, so that the trigger portion 410 extends out of the avoidance hole 613. Figure 8-Figure 10 In another embodiment, the linkage member 610 moves toward the direction of extending out of the housing 100 , so that the trigger portion 410 extends out of the avoidance hole 613 .

[0076] See also Figure 2In other embodiments, the micro switch 400 can also generate an induction signal when the trigger portion 410 is converted from a pressed state to an unpressed state. Specifically, the micro switch 400 includes a trigger portion 410, a second end portion 612 presses against the trigger portion 410, and the second end portion 612 is provided with an avoidance hole 613. The second end portion 612 is configured to be able to move relative to the micro switch 400 until the trigger portion 410 extends into the avoidance hole 613, so that the second end portion 612 is separated from the trigger portion 410, thereby triggering the micro switch 400 to generate an induction signal. Specifically, the second end portion 612 is configured to move relative to the micro switch 400 when the linkage 610 moves in a direction extending into the housing 100, so that the trigger portion 410 extends into the avoidance hole 613 and the second end portion 612 is separated from the trigger portion 410, thereby triggering the micro switch 400 to generate an induction signal.

[0077] In the above-mentioned embodiment, the avoidance hole 613 cooperates with the triggering part 410 to trigger the triggering part 410. In other embodiments, see Figure 11-Figure 12 , the triggering part 410 can also be triggered by the cooperation of the protrusion 614 and the triggering part 410. Specifically, the micro switch 400 includes the triggering part 410, and the second end 612 includes the protrusion 614 separated from the triggering part 410, and the second end 612 is configured to be able to move relative to the micro switch 400 to the protrusion 614 to press the triggering part 410, thereby triggering the micro switch 400 to generate an induction signal. In this solution, the induction signal is generated during the process of the triggering part 410 changing from an unpressed state to a pressed state. In other embodiments, the second end 612 is configured to be able to move relative to the micro switch 400 to the protrusion 614 to separate from the triggering part 410, thereby triggering the micro switch 400 to generate an induction signal. In this solution, the induction signal is generated during the process of the triggering part 410 changing from a pressed state to an unpressed state. When the triggering portion 410 is triggered by the cooperation between the protrusion 614 and the triggering portion 410 , the linkage member 610 can move in a direction extending into the housing 100 or in a direction extending out of the housing 100 .

[0078] In the above-mentioned embodiment, the position of the carrying portion 110 is fixed, and the linkage member 610 moves relative to the carrying portion 110 during the process of triggering the triggering portion 410. Figure 3In some embodiments, the position of the bearing part 110 may not be fixed, and the bearing part 110 moves with the movement of the linkage part 610, and the linkage part 610 and the bearing part 110 move simultaneously. Specifically, the housing 100 includes a housing body 120 and a bearing part 110, and the housing body 120 defines a housing cavity for accommodating the charging coil 200. The linkage part 610 is disposed in the housing body 120, the bearing part 110 is connected to the first end 611, and the bearing part 110 is configured to be able to be pushed by the gravity of the device to be charged to extend into the housing body 120. In this solution, the bearing part 110 and the trigger part 410 are respectively disposed at two opposite ends of the linkage part 610. When the device to be charged is carried on the bearing part 110, the device to be charged pushes the bearing part 110 downward due to the gravity, thereby driving the linkage part 610 to move in the direction of extending into the housing body 120, thereby triggering the trigger part 410. In this solution, there is no need to pay attention to the position of the linkage member 610 when the device to be charged is carried on the carrying portion 110 , so driving the linkage member 610 is more convenient and more accurate.

[0079] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0080] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or", "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0081] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A wireless charger, characterized in that: include: The housing comprises a carrying portion, wherein the carrying portion is suitable for carrying a device to be charged; A charging coil, disposed in the housing, the charging coil being suitable for wirelessly charging the device to be charged; a linkage member, movably connected to the housing, the linkage member comprising a first end and a second end, the first end being configured to be driven by the device to be charged during the process in which the device to be charged is carried on the carrying portion, so that the linkage member moves relative to the housing; A micro switch is connected to the housing, and the micro switch is configured to be triggered by the second end during the movement of the linkage member relative to the housing to generate an induction signal.

2. The wireless charger according to claim 1, characterized in that: The linkage member is disposed through the bearing portion, the first end portion is located outside the housing, the second end portion is located inside the housing, and the micro switch is located inside the housing; The linkage member is configured such that when the device to be charged is carried on the carrying portion, the first end portion is pressed by the device to be charged so that the linkage member moves in a direction extending into the housing.

3. The wireless charger according to claim 1, wherein: The linkage member is disposed through the housing, the first end portion is located outside the housing, the second end portion is located inside the housing, and the micro switch is located inside the housing; The bearing portion includes a bearing surface for bearing the device to be charged, the bearing surface is inclined, and the first end is located below the bearing surface, the first end is configured to be suitable for supporting the lower end of the device to be charged carried on the bearing surface, and the linkage member is configured to move in the direction of extending out of the shell under the action of the gravity of the device to be charged.

4. The wireless charger according to claim 3, characterized in that: The micro switch includes a trigger portion, the second end portion is provided with an avoidance hole, the trigger portion is located in the avoidance hole, so that the second end portion is separated from the second end portion; The second end is configured to move relative to the micro switch when the linkage moves in a direction extending out of the housing, so that the trigger portion extends out of the avoidance hole and the second end presses against the trigger portion, thereby triggering the micro switch.

5. The wireless charger according to claim 3, characterized in that: The wireless charger further includes a positioning component, the positioning component is connected to the housing, and the positioning component is used to position the device to be charged to fix the relative position of the device to be charged and the bearing portion; The positioning assembly includes a first clamping arm, a second clamping arm and the linkage member; when the linkage member is displaced downward by the gravity of the device to be charged, the linkage member drives the first clamping arm and the second clamping arm to move toward each other, so that the first clamping arm and the second clamping arm are suitable for jointly clamping the lateral sides of the device to be charged.

6. The wireless charger according to claim 1, wherein: The micro switch comprises a trigger portion, the second end portion presses against the trigger portion, and the second end portion is provided with an avoidance hole; The second end portion is configured to be able to move relative to the micro switch until the trigger portion extends into the avoidance hole, so that the second end portion is separated from the trigger portion, thereby triggering the micro switch.

7. The wireless charger according to claim 1, wherein: The micro switch includes a trigger portion, the second end portion includes a protrusion separated from the trigger portion, and the second end portion is configured to be able to move relative to the micro switch to the protrusion to press the trigger portion, thereby triggering the micro switch; or, The micro switch includes a trigger portion, the second end includes a protrusion that presses the trigger portion, and the second end is configured to be able to move relative to the micro switch until the protrusion is separated from the trigger portion, thereby triggering the micro switch.

8. The wireless charger according to claim 1, wherein: The wireless charger further includes a driving component connected to the charging coil, and the driving component is configured to drive the charging coil to move relative to the carrying portion.

9. The wireless charger according to claim 8, characterized in that: The wireless charger includes a first circuit board and a second circuit board electrically connected to each other, the first circuit board is electrically connected to the charging coil and moves with the charging coil, and the second circuit board is fixed to the housing and electrically connected to the micro switch.

10. The wireless charger according to claim 8, characterized in that: The driving assembly includes a driving part and a transmission part connected to the driving part, the transmission part includes a support seat, the support seat is connected to the charging coil, the wireless charger also includes a guide rail, the axis of the guide rail is parallel to the first direction, the support seat includes a first slider slidably connected to the guide rail, and the driving part drives the support seat to reciprocate along the first direction on the guide rail; The transmission part further comprises a screw, the axis of the screw is parallel to the first direction, the support seat comprises a second slider sleeved on the screw, the second slider has an internal thread matched with the screw, and the driving part is configured to drive the screw to rotate around its own axis so as to drive the second slider to reciprocate along the first direction; The wireless charger comprises two guide rails arranged opposite to each other along the second direction, and the support seat comprises two first sliders, and the two first sliders are slidably connected to the two guide rails in a one-to-one correspondence; The support seat further includes a support plate, the two first sliding blocks are connected to one side of the support plate along the first direction, and the second sliding block is connected to the other side of the support plate along the first direction; The screw rod is located at one side of the two guide rails along the first direction, and along the second direction, the screw rod is located between the two guide rails.

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