A foldable wireless charging stand

Abstract

This invention provides a foldable wireless charging stand, comprising: a base plate, with a support seat connected to its bottom back side via a hinge; a rectangular guide groove formed inside the base plate; a mounting shell slidably disposed inside the rectangular guide groove; and a charging panel disposed on one side of the mounting shell. This invention belongs to the technical field of foldable wireless charging stands. This invention uses a sensing system to control the start and stop of a drive motor. The sensing system and a power supply interface are interconnected via wires to achieve power supply to the sensing system through the power supply wires. Specifically, after the mobile phone is fixed, the sensing system identifies the position of the mobile phone. Based on the identification result, the drive motor is controlled to rotate, causing the drive screw to move the slider, thereby adjusting the position of the mounting ring so that the charging panel corresponds to the mobile phone coil, achieving the charging purpose and enabling automatic charging for different mobile phone models.

Description

Technical Field

[0001] This invention belongs to the technical field of foldable wireless charging brackets, and specifically relates to a foldable wireless charging bracket. Background Technology

[0002] Wireless charging devices are chargers that do not require a traditional charging cable to connect to the terminal device that needs charging. They transmit electrical energy by using the magnetic field generated between coils, making inductive coupling technology a bridge between the charging base station and the device. They are commonly used for charging smart devices such as mobile phones, smartwatches, and headphones.

[0003] Existing wireless charging devices can be broadly divided into two types: one is a vertical wireless charger placed on a table, which generally has two coils, located at the top and bottom of the charging surface, or can charge horizontally oriented phones and vertically oriented phones by moving the internal movable coils; the other is a foldable wireless charger designed for portability. This type of charger usually only has a single coil, and the coil position is mostly fixed, making it difficult to adapt to different phone models. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to provide a foldable wireless charging stand. can It enables automatic charging for different mobile phone models.

[0005] To address the above problems, the present invention provides a foldable wireless charging stand, comprising:

[0006] The substrate has a support base connected to its back side bottom end by a hinge. A rectangular guide groove is opened inside the substrate. A mounting shell is slidably installed inside the rectangular guide groove. A charging panel is provided on one side of the mounting shell. A positioning groove is opened in the center of the charging panel. A sliding plate is provided inside the positioning groove. A charging coil is provided at the top of the sliding plate. An over-temperature protection component is provided at the bottom of the sliding plate.

[0007] The housing contains a heat dissipation component, and the base plate contains a heat dissipation airflow channel for use with the heat dissipation component.

[0008] A clamping panel is disposed on the front side of the substrate and in contact with the substrate. A rectangular slide rail is provided inside the clamping panel, and side guide grooves are provided on both sides inside the rectangular slide rail.

[0009] The outer peripheral wall of the charging panel is rotatably equipped with a mounting ring. An angle limiting component is provided between the inner side of the mounting ring and the outer peripheral wall of the charging panel. The outer wall of the mounting ring is rectangular and is inserted into the inside of a rectangular slide rail. Slider blocks are provided on both sides of the mounting ring and are inserted into the side guide grooves. A transmission screw is threadedly connected to the center of the slider, and the axis of the transmission screw is in the same direction as the straight line direction of the side guide groove.

[0010] Furthermore, the clamping panel has an annular cavity that communicates with the side guide groove. A drive motor is fixedly installed at the bottom of the annular cavity, and the output shaft of the drive motor is connected to one end of the drive screw through a coupling. A sensing system is installed inside the annular cavity.

[0011] Furthermore, the sensing system includes:

[0012] The infrared sensor is provided in four sets, which are respectively located at the four corners of the annular cavity, and the top surface of the clamping panel has through holes at the positions corresponding to the infrared sensors.

[0013] The ultrasonic sensor has four sets, which are fixedly installed on the side wall of the infrared sensor.

[0014] The controller is located at the bottom of the annular cavity and is electrically connected to the infrared sensor and the ultrasonic sensor via wires. The controller is also connected to the drive motor via wires.

[0015] Furthermore, the heat dissipation component includes:

[0016] The turbine fan's rotation is located inside the mounting housing. A cooling motor for driving the turbine fan's rotation is located at the center of the mounting housing. An air duct is located on the bottom side of the mounting housing to guide the airflow generated by the turbine fan.

[0017] Furthermore, the heat dissipation duct includes:

[0018] An extension duct is formed inside the bottom wall of a rectangular guide groove, and a connecting cavity is provided at the bottom end of the extension duct. Ventilation pipes extend upward from both sides of the top end of the connecting cavity, and the top end of the ventilation pipes penetrates the substrate. The bottom end of the air guide pipe is inserted into the interior of the extension duct and is slidably connected to the extension duct.

[0019] Furthermore, the over-temperature protection component includes:

[0020] An electric push rod is installed at the bottom of the positioning groove. The outer shell of the electric push rod is fixedly connected to the bottom wall of the positioning groove, and a push rod controller is installed inside the outer shell. An air cushion plate is installed at the upper extension end of the electric push rod. The air cushion plate is fixedly connected to the bottom wall of the sliding plate. A temperature sensor is installed at the center of the air cushion plate, and the temperature sensor is electrically connected to the push rod controller.

[0021] Furthermore, the hinge includes:

[0022] A fixing plate is fixedly installed on the back side of the base plate. Two connecting rings are provided at the bottom of the fixing plate. Connecting rods are rotatably installed inside the two connecting rings. The two ends of the connecting rods are fixedly connected to the support base.

[0023] The outer peripheral wall of the connecting rod and the inner wall of the connecting ring are both equipped with damping modules.

[0024] Furthermore, the angle limiting component includes:

[0025] The outer groove is formed on the outer peripheral wall of the charging panel, and multiple outer grooves are provided, with the spacing between adjacent outer grooves being equal;

[0026] The inner groove is formed on the inner wall of the mounting ring, and the number of them corresponds to the number of outer grooves. A protrusion is slidably arranged inside the inner groove, and a connecting spring is provided at the top of the protrusion. The end of the protrusion extending out of the inner groove is arc-shaped.

[0027] Furthermore, the damping module includes:

[0028] A circular groove is formed on the outer peripheral wall of the connecting rod and is located on the inner side of the connecting ring. A push groove is formed on the inner wall of the connecting ring at a position corresponding to the circular groove. An arc-shaped elastic plate is set inside the push groove. The two ends of the elastic plate are fixedly connected to the inner wall of the push groove. The arc-shaped elastic plate protrudes outward from the push groove and is inserted into the inside of the circular groove.

[0029] In summary, the present invention includes at least one of the following beneficial technical effects;

[0030] The sensor system controls the start and stop of the drive motor. The sensor system and the power supply interface are connected by wires to enable power supply to the sensor system. Specifically, after the mobile phone is fixed, the sensor system identifies the position of the mobile phone. Based on the identification result of the sensor system, the drive motor is controlled to rotate, so that the drive screw drives the slider to move, thereby adjusting the position of the mounting ring so that the charging panel corresponds with the mobile phone coil, achieving the purpose of charging and enabling automatic charging for different mobile phone models.

[0031] The over-temperature protection component is located at the bottom of the sliding plate. When the phone is charging, the charging coil is in close contact with the phone. When the temperature exceeds the temperature threshold set by the over-temperature protection component, the over-temperature protection component pulls back the sliding plate, moving the sliding plate and the charging coil away from the phone, thus disconnecting the charging process and exposing the coil on the back of the phone, allowing air to fully contact the back of the phone, thereby protecting both the phone and the charger.

[0032] The heat dissipation component is used to increase the airflow velocity inside the substrate, allowing the air to quickly dissipate the heat generated during charging. Furthermore, when the over-temperature protection component pulls the sliding plate back, a cavity is formed between the sliding plate and the phone. Figure 1 As shown, the positioning groove has several notches in its wall to connect the outside world with the cavity formed by the sliding plate and the mobile phone. When the heat dissipation component quickly exhausts air, it can effectively extract the air from the cavity formed by the sliding plate and the mobile phone, thereby improving the cooling efficiency of the mobile phone. Attached Figure Description

[0033] Figure 1 A schematic diagram of a foldable wireless charging stand;

[0034] Figure 2 A schematic diagram of the back structure of a foldable wireless charging stand;

[0035] Figure 3 A schematic diagram of the heat dissipation airflow of a foldable wireless charging bracket;

[0036] Figure 4 A schematic diagram of the heat dissipation component of a foldable wireless charging stand;

[0037] Figure 5 A schematic diagram of the back structure of the clamping panel of a foldable wireless charging bracket.

[0038] Figure 6 A schematic diagram of the sensing system for a foldable wireless charging stand;

[0039] Figure 7 A schematic diagram of the angle limiting component of a foldable wireless charging bracket;

[0040] Figure 8 A foldable wireless charging stand Figure 2 Enlarged view of point A;

[0041] Figure 9 A schematic diagram of the mounting ring structure of a foldable wireless charging bracket;

[0042] Figure 10 A schematic diagram of the back structure of the mounting ring of a foldable wireless charging bracket;

[0043] Figure 11 A schematic diagram of the over-temperature protection component for a foldable wireless charging bracket;

[0044] Figure 12 This is a schematic diagram of the structure of a foldable wireless charging bracket after the clamping panel has been rotated.

[0045] The reference numerals in the attached figures are as follows:

[0046] 1. Base plate; 2. Hinge; 201. Fixing plate; 202. Connecting ring; 203. Circular groove; 204. Push groove; 205. Arc-shaped elastic plate; 206. Connecting rod; 3. Support base; 4. Rectangular guide groove; 5. Mounting housing; 6. Charging panel; 7. Positioning groove; 8. Sliding plate; 9. Charging coil; 10. Over-temperature protection component; 101. Electric push rod; 102. Air cushion plate; 103. Temperature sensor; 11. Heat dissipation component; 111. Turbine fan; 112. Cooling motor; 113. Air guide. 12. Pipe; 121. Heat dissipation duct; 122. Extension pipe; 123. Connecting cavity; 124. Ventilation pipe; 15. Clamping panel; 16. Rectangular slide rail; 17. Side guide groove; 18. Mounting ring; 19. Angle limiting component; 10. Outer groove; 10. Inner groove; 11. Protrusion; 12. Connecting spring; 13. Slider; 14. Drive screw; 15. Annular cavity; 26. Drive motor; 27. Sensing system; 28. Infrared sensor; 29. ​​Ultrasonic sensor; 20. Controller. Detailed Implementation

[0047] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0049] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0050] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0051] See also Figures 1-12 As shown, according to Embodiment 1 of the present invention, a foldable wireless charging stand is provided, comprising:

[0052] The substrate 1 has a support base 3 connected to its bottom back side via a hinge 2. The hinge 2 is used to mount the support base 3 to the bottom back side of the substrate 1. In use, the support base 3 is unfolded to support the substrate 1. The hinge 2 has a damping module inside, which can position the support base 3 at multiple angles to adjust the angle of the wireless charging stand. A rectangular guide groove 4 is formed inside the substrate 1. A mounting shell 5 is slidably mounted inside the rectangular guide groove 4. A charging panel 6 is provided on one side of the mounting shell 5. A positioning groove 7 is formed at the center of the charging panel 6. A sliding plate 8 is provided inside the positioning groove 7. A wireless charging bracket is provided inside the sliding plate 8. The wired charging circuit board has a sliding plate 8 with a charging coil 9 at the top. The charging coil 9 is electrically connected to the wireless charging circuit board via wires. The bottom of the sliding plate 8 is equipped with an over-temperature protection component 10. When the phone is being charged, the charging coil 9 is in close contact with the phone. When the temperature exceeds the temperature threshold set by the over-temperature protection component 10, the over-temperature protection component 10 pulls back the sliding plate 8, moving the sliding plate 8 and the charging coil 9 away from the phone, thus disconnecting the charging process and exposing the coil on the back of the phone, allowing air to fully contact the back of the phone, thereby protecting both the phone and the charger.

[0053] The housing 5 contains a heat dissipation assembly 11, which increases the airflow rate inside the substrate 1, allowing the air to quickly dissipate the heat generated during charging. Furthermore, when the over-temperature protection assembly 10 pulls the sliding plate 8 back, a cavity is formed between the sliding plate 8 and the mobile phone. Figure 1 As shown, the positioning groove 7 has several notches in its groove wall to connect the outside with the cavity formed by the sliding plate 8 and the mobile phone. When the heat dissipation component 11 quickly exhausts air, it can effectively extract the air in the cavity formed by the sliding plate 8 and the mobile phone, thereby improving the cooling efficiency of the mobile phone. The substrate 1 is also provided with a heat dissipation air duct 12 for use with the heat dissipation component 11. The heat dissipation air duct 12 is used to guide the air flow in conjunction with the heat dissipation component 11, so that the air can quickly pass through the substrate 1 to achieve the purpose of heat dissipation for the charger.

[0054] The top of the housing 5 is provided with a power supply interface, which is a USB Type-C interface. The power supply interface is connected to the charging coil 9, the heat dissipation component 11 and the over-temperature protection component 10 to supply power to this part of the electrical equipment.

[0055] The clamping panel 13 has outwardly extendable clamping plates on both sides. The clamping plates are slidably connected to the clamping panel 13 via spring connecting rods, allowing the clamping plates to move to both sides and stretch the spring connecting rods. The contraction force of the spring connecting rods is used to clamp the mobile phone, thereby fixing the mobile phone on the clamping panel 13. A straight groove is provided on the inner side of the clamping plate to accommodate the power button and volume buttons of the mobile phone. It is located on the front side of the substrate 1 and in contact with the substrate 1. A rectangular slide rail 14 is provided inside the clamping panel 13, and side guide grooves 15 are provided on both sides inside the rectangular slide rail 14.

[0056] A mounting ring 16 is rotatably provided on the outer peripheral wall of the charging panel 6. The mounting ring 16 allows the charging panel 6 to be slidably mounted inside the rectangular slide rail 14. Since both the mounting ring 16 and the charging panel 6 are rotatable, the mounting ring 16 will rotate along with the clamping panel 13 when the clamping panel 13 is rotated. Figure 12 As shown, the clamping panel 13 can be placed horizontally or at other angles to improve the applicability of the charger. An angle limiting component 17 is provided between the inner side of the mounting ring 16 and the outer peripheral wall of the charging panel 6. The angle limiting component 17 limits the angle of the mounting ring 16 when it rotates, so that the mounting ring 16 can be suspended at multiple angles, thus achieving multi-angle suspension of the mounting ring 16. The outer wall of the mounting ring 16 is rectangular, and the mounting ring 16 is inserted into the rectangular slide rail 14. Slider 18s are provided on both sides of the mounting ring 16 and inserted into the side guide groove 15. A transmission screw 19 is threadedly connected to the center of the slider 18, and the axis of the transmission screw 19 is the same as the straight line direction of the side guide groove 15.

[0057] In this embodiment, since the coil positions of existing foldable wireless chargers are mostly fixed, it is difficult to adapt to different mobile phone models. In order to change this situation, the following technical solution is proposed in this embodiment:

[0058] like Figure 1 As shown, when charging a mobile phone, the mobile phone is fixed to one side of the clamping panel 13 by the clamps on both sides of the clamping panel 13, and the support base 3 is pressed down so that the support base 3 is supported and forms an inclined surface, which is used to support the wireless charger on the flat surface.

[0059] After the phone is fixed, the slider 18 and the mounting ring 16 are moved by the rotation of the transmission screw 19 until the mounting ring 16 corresponds to the position of the coil set on the back of the phone. At this time, the charging panel 6 inside the mounting ring 16 corresponds to the coil on the back of the phone, and the phone is charged through the charging coil 9 at the end of the charging panel 6.

[0060] In a further preferred embodiment of the invention, such as Figure 6 As shown, the clamping panel 13 has an annular cavity 20 that communicates with the side guide groove 15. A drive motor 21 is fixedly installed at the bottom of the annular cavity 20, and the output shaft of the drive motor 21 is connected to one end of the drive screw 19 through a coupling. A sensing system 22 is installed inside the annular cavity 20.

[0061] In this embodiment, during use, the sensing system 22 is used to control the start and stop of the drive motor 21. The sensing system 22 and the power supply interface are connected to each other through wires to achieve the effect of powering the sensing system 22 through the power supply wires. Specifically, after the mobile phone is fixed, the sensing system 22 identifies the position of the mobile phone. According to the identification result of the sensing system 22, the drive motor 21 is controlled to rotate, so that the drive screw 19 drives the slider 18 to move, thereby adjusting the position of the mounting ring 16 so that the charging panel 6 corresponds to the mobile phone coil, thus achieving the purpose of power supply. The annular cavity 20 is a rectangular cavity used to install and position the sensing system 22.

[0062] In a further preferred embodiment of the invention, such as Figure 6 As shown, the sensing system 22 includes:

[0063] The infrared sensor 221 is provided in four sets, and is respectively located at the four corners of the annular cavity 20. The top surface of the clamping panel 13 is provided with through holes at the positions corresponding to the infrared sensor 221.

[0064] The ultrasonic sensor 222 has four sets, which are fixedly installed on the side wall of the infrared sensor 221.

[0065] The controller 223 is located at the bottom of the annular cavity 20 and is electrically connected to the infrared sensor 221 and the ultrasonic sensor via wires. The controller 223 is also connected to the drive motor 21 via wires.

[0066] In this embodiment, after the mobile phone is fixed, the infrared sensor 221 (standard infrared proximity or reflection sensor) emits infrared light to detect the mobile phone through the through hole on the panel. Due to the presence of the mobile phone back cover, some infrared light will be blocked or reflected. By using the blocking situation or distance information detected by the infrared sensors at the four corners, the controller 223 can preliminarily determine the approximate position and boundary outline of the mobile phone on the clamping panel plane.

[0067] The ultrasonic sensor 222 (UD18-22CC222) emits ultrasonic pulses and projects them onto the back of the phone through a through-hole. Upon encountering the phone's back cover, the ultrasonic waves are reflected back to the sensors. The controller 223 (an embedded microcontroller or PLC module) calculates the time difference between the ultrasonic wave emission and reception to precisely measure the distance from the phone's back cover to each sensor location. These distance measurements at four points help construct the phone's posture and curvature information in three-dimensional space. Based on the physical data of the phone obtained from the infrared sensor 221 and ultrasonic sensor 222, and using the target position of the phone's coil calculated by the controller 223, the direction and number of rotations required for the transmission screw 19 are determined. The controller 223 sends a control signal to the drive motor 21, driving it to rotate. The output shaft of the drive motor 21 drives the transmission screw 19 to rotate via a coupling.

[0068] Since the slider 18 and the transmission screw 19 are connected by threads, and the slider 18 can only move in a straight line when it is stuck in the side guide groove 15, the rotation of the screw will be converted into the linear movement of the slider 18 in the side guide groove 15. The slider 18 is fixed on both sides of the mounting ring 16. Therefore, the movement of the slider 18 will drive the entire mounting ring 16 to slide in the rectangular slide rail 14. The charging panel 6 installed inside the mounting ring 16 and the charging coil 9 on it will also move to the target position calculated by the controller 223, that is, accurately aligned with the wireless charging coil 9 on the back of the mobile phone. After the charging coil 9 on the charging panel 6 is aligned with the mobile phone coil, the wireless charging process will start automatically.

[0069] In a further preferred embodiment of the invention, such as Figure 2 , Figure 4 and Figure 10 As shown, the heat dissipation assembly 11 includes:

[0070] The turbofan 111 is rotatably mounted inside the mounting housing 5. A cooling motor 112 for driving the turbofan 111 to rotate is located at the center of the mounting housing 5. An air guide duct 113 is provided on the bottom side of the mounting housing 5 to guide the airflow generated by the turbofan 111.

[0071] In this embodiment, the cooling motor 112 drives the turbofan 111 to rotate at high speed, generating a strong airflow through the centrifugal blade structure. Its airflow is significantly higher than that of a traditional axial fan, causing the air to be discharged to the back side. Furthermore, through the setting of the air duct 113, after the airflow generated by the turbofan 111 moves at high speed, it can draw out the air in the cooling air duct 12, achieving rapid airflow to achieve the purpose of cooling. The flow channel design reduces airflow resistance and avoids heat accumulation.

[0072] Furthermore, when the airflow is exhausted through the opening on the back of the mounting housing 5, the negative pressure generated by the airflow will draw out the air inside the cavity formed by the back of the phone and the sliding plate 8, forcibly removing heat. And when the over-temperature protection component 10 pulls back the sliding plate 8, the airflow of the turbine fan 111 accelerates the air exchange inside the cavity formed by the back of the phone and the sliding plate 8 through the notch of the positioning slot 7, improving the heat dissipation efficiency of the back of the phone.

[0073] In a further preferred embodiment of the invention, such as Figure 3 As shown, the heat dissipation duct 12 includes:

[0074] An extension pipe 121 is formed on the inner bottom wall of a rectangular guide groove 4, and a connecting cavity 122 is provided at the bottom end of the extension pipe 121. Ventilation pipes 123 extend upward from both sides of the top end of the connecting cavity 122, and the top end of the ventilation pipes 123 penetrates the substrate 1. The bottom end of the air guide pipe 113 is inserted into the interior of the extension pipe 121 and is slidably connected to the extension pipe 121.

[0075] In this embodiment, the high-pressure airflow generated by the rotation of the turbofan 111 draws out the air inside the extension pipe 121 through the air guide pipe 113. The bottom end of the air guide pipe 113 is inserted into the extension pipe 121 in a sliding connection manner to ensure that the air can flow out along the extension pipe 121 and the air guide pipe 113. Due to the suction, the outside air will enter the ventilation pipe 123 through the top of the ventilation pipe 123 and enter the connecting cavity 122 along the ventilation pipe 123. Then, it will enter the interior of the mounting housing through the extension pipe 121 and the air guide pipe 113, and then be discharged through the opening on the back of the mounting housing.

[0076] Furthermore, since the ventilation duct 123 passes through the substrate 1, the airflow directly acts on the substrate 1, enabling the substrate 1 to form a lower temperature. The heat from the charging coil 9 and the back of the phone is carried away by the turbo fan 111. The sliding connection design between the air duct 113 and the extension duct 121 allows the charging panel 6 to maintain the air duct sealing when moving within the rectangular guide groove 4, ensuring that the heat dissipation efficiency is not affected by the position adjustment.

[0077] In a further preferred embodiment of the invention, such as Figure 11 As shown, the over-temperature protection component 10 includes:

[0078] An electric push rod 101 is installed at the bottom of the positioning groove 7. The outer shell of the electric push rod 101 is fixedly connected to the bottom wall of the positioning groove 7, and a push rod controller is installed inside the outer shell. An air cushion plate 102 is installed at the upper telescopic end of the electric push rod 101. The air cushion plate 102 is fixedly connected to the bottom wall of the sliding plate 8. A temperature sensor 103 is installed at the center of the air cushion plate 102, and the temperature sensor 103 is electrically connected to the controller 223.

[0079] In this embodiment, the temperature sensor 103 detects the temperature data of the charging coil 9 or the back of the mobile phone in real time and transmits it to the push rod controller via an electrical signal. The push rod controller analyzes the temperature data. If the temperature exceeds a set threshold, it triggers the start of the electric push rod 101, causing the electric push rod 101 to retract. The upper extension end of the electric push rod 101 pulls down the sliding plate 8, separating the charging coil 9 from the mobile phone, interrupting charging, and expanding the heat dissipation cavity formed by the back of the mobile phone and the sliding plate 8. After the temperature returns to normal, the controller 223 reverses the motor direction, and the push rod extends to reset the sliding plate 8, restoring the charging contact. The air cushion plate 102 provides deformation when the sliding plate 8 is reset and the charging coil is in contact with the mobile phone, preventing the sliding plate 8 from pushing the mobile phone to move.

[0080] In a further preferred embodiment of the invention, such as Figure 2 As shown, the hinge 2 includes:

[0081] A fixing plate 201 is fixedly disposed on the back side of the base plate 1. Two connecting rings 202 are provided at the bottom end of the fixing plate 201. A connecting rod 206 is rotatably disposed inside the two connecting rings 202. The two ends of the connecting rod 206 are fixedly connected to the support base 3.

[0082] The outer peripheral wall of the connecting rod 206 and the inner wall of the connecting ring 202 are both provided with a damping module.

[0083] In this embodiment, the fixing plate 201 forms a rotating pair with the connecting rod 206 through the connecting ring 202. The rotational force of the support base 3 is transmitted to the connecting rod 206. The angle is controlled and fixed through the damping module. The two ends of the connecting rod 206 are rigidly fixed to the support base 3, which can withstand the vertical load of the mobile phone and the bracket and avoid structural deformation when folded.

[0084] In a further preferred embodiment of the invention, such as Figure 7 As shown, the angle limiting component 17 includes:

[0085] The outer groove 171 is formed on the outer peripheral wall of the charging panel 6, and multiple outer grooves 171 are provided, with the spacing between adjacent outer grooves 171 being equal.

[0086] The inner groove 172 is formed on the inner wall of the mounting ring 16, and the number of them corresponds to the number of outer grooves 171. A protrusion 173 is slidably arranged inside the inner groove 172. A connecting spring 174 is provided at the top of the protrusion 173. The end of the protrusion 173 extending out of the inner groove 172 is arc-shaped.

[0087] In this embodiment, the protrusion 173 is inserted into the outer groove 171 under the action of the connecting spring 174. The arc end face reduces friction noise and realizes the 10° indexing positioning of the charging panel 6. When rotating, the protrusion 173 is compressed back into the inner groove 172. After passing the groove, the spring returns to its original position, ensuring the segmented feel of the angle adjustment.

[0088] In a further preferred embodiment of the invention, such as Figure 8 As shown, the damping module includes:

[0089] A circular groove 203 is formed on the outer peripheral wall of the connecting rod 206 and is located inside the connecting ring 202. A push groove 204 is formed on the inner wall of the connecting ring 202 at a position corresponding to the circular groove 203. An arc-shaped elastic plate 205 is provided inside the push groove 204. The two ends of the elastic plate are fixedly connected to the inner wall of the push groove 204. The arc-shaped elastic plate 205 protrudes outward from the push groove 204 and is inserted into the inside of the circular groove 203.

[0090] In this embodiment, the arc-shaped elastic plate 205 is embedded in the circular groove 203 to form an interference fit. When rotating, the elastic plate rubs against the side wall of the circular groove 203 to generate a damping torque. The height of the elastic plate protrusion is automatically compensated with wear to maintain damping stability. Through the synergy of mechanical limiting and friction damping, the bracket can be suspended at multiple angles and folded smoothly.

[0091] It will be readily understood by those skilled in the art that the aforementioned advantageous methods can be freely combined and superimposed without conflict.

[0092] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention. The above are merely preferred embodiments of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. A foldable wireless charging stand, characterized in that, Including: The substrate (1) has a support base (3) connected to its back side bottom end by a hinge (2). A rectangular guide groove (4) is provided inside the substrate (1). A mounting shell (5) is slidably arranged inside the rectangular guide groove (4). A charging panel (6) is provided on one side of the mounting shell (5). A positioning groove (7) is provided at the center of the charging panel (6). A sliding plate (8) is provided inside the positioning groove (7). A charging coil (9) is provided at the top of the sliding plate (8). An over-temperature protection component (10) is provided at the bottom of the sliding plate (8). The housing (5) is equipped with a heat dissipation component (11), and the base plate (1) is equipped with a heat dissipation duct (12) for use with the heat dissipation component (11). A clamping panel (13) is disposed on the front side of the substrate (1) and in contact with the substrate (1). A rectangular slide rail (14) is provided inside the clamping panel (13), and side guide grooves (15) are provided on both sides inside the rectangular slide rail (14). The outer peripheral wall of the charging panel (6) is rotatably provided with a mounting ring (16). An angle limiting component (17) is provided between the inner side of the mounting ring (16) and the outer peripheral wall of the charging panel (6). The outer wall of the mounting ring (16) is rectangular, and the mounting ring (16) is inserted into the inside of the rectangular slide rail (14). The two sides of the mounting ring (16) are respectively provided with sliders (18) inserted into the side guide groove (15). The center of the slider (18) is threadedly connected to a transmission screw (19), and the axis of the transmission screw (19) is the same as the straight line direction of the side guide groove (15). The clamping panel (13) has an annular cavity (20) that communicates with the side guide groove (15). A drive motor (21) is fixedly installed at the bottom of the annular cavity (20), and the output shaft of the drive motor (21) is connected to one end of the drive screw (19) through a coupling. A sensing system (22) is installed inside the annular cavity (20). The angle limiting component (17) includes: The outer groove (171) is formed on the outer peripheral wall of the charging panel (6), and multiple grooves are provided, with the spacing between adjacent outer grooves (171) being equal; The inner groove (172) is formed on the inner wall of the mounting ring (16), and the number of the inner groove (171) corresponds to the number of outer grooves (171). The inner groove (172) is slidably provided with a protrusion (173), and a connecting spring (174) is provided at the top of the protrusion (173). The end of the protrusion (173) extending out of the inner groove (172) is arc-shaped.

2. A foldable wireless charging stand according to claim 1, characterized in that, The sensing system (22) includes: The infrared sensor (221) is provided in four groups, and is respectively located at the four corners of the annular cavity (20). The top surface of the clamping panel (13) is provided with through holes corresponding to the infrared sensor (221). The ultrasonic sensor (222) has four sets, which are respectively fixedly installed on the side wall of the infrared sensor (221); The controller (223) is located at the bottom of the annular cavity (20) and is electrically connected to the infrared sensor (221) and the ultrasonic sensor via wires. The controller (223) is also connected to the drive motor (21) via wires.

3. A foldable wireless charging stand according to claim 1, characterized in that, The heat dissipation component (11) includes: The turbine fan (111) is rotated inside the mounting housing (5). A cooling motor (112) for driving the turbine fan (111) to rotate is provided at the center of the mounting housing (5). A duct (113) is provided on the bottom side of the mounting housing (5) to guide the airflow generated by the turbine fan (111).

4. A foldable wireless charging stand according to claim 1, characterized in that, The heat dissipation duct (12) includes: An extension pipe (121) is formed on the inner bottom wall of a rectangular guide groove (4), and a connecting cavity (122) is provided at the bottom end of the extension pipe (121). Ventilation pipes (123) extend upward on both sides of the top end of the connecting cavity (122), and the top end of the ventilation pipe (123) penetrates through the substrate (1). The bottom end of the air guide pipe (113) is inserted into the interior of the extension pipe (121) and is slidably connected to the extension pipe (121).

5. A foldable wireless charging stand according to claim 1, characterized in that, The over-temperature protection component (10) includes: An electric push rod (101) is set at the bottom of the positioning groove (7). The outer shell of the electric push rod (101) is fixedly connected to the bottom wall of the positioning groove (7), and a push rod controller is set inside the outer shell. An air cushion plate (102) is set at the upper telescopic end of the electric push rod (101). The air cushion plate (102) is fixedly connected to the bottom wall of the sliding plate (8). A temperature sensor (103) is set at the center of the air cushion plate (102), and the temperature sensor (103) is electrically connected to the push rod controller.

6. A foldable wireless charging stand according to claim 1, characterized in that, The hinge (2) includes: A fixing plate (201) is fixedly installed on the back side of the base plate (1). Two connecting rings (202) are provided at the bottom end of the fixing plate (201). A connecting rod (206) is rotatably installed inside the two connecting rings (202). The two ends of the connecting rod (206) are fixedly connected to the support base (3). The outer peripheral wall of the connecting rod (206) and the inner wall of the connecting ring (202) are both provided with a damping module.

7. A foldable wireless charging stand according to claim 6, characterized in that, The damping module includes: A circular groove (203) is opened on the outer peripheral wall of the connecting rod (206), and the circular groove (203) is located on the inner side of the connecting ring (202). A push groove (204) is opened on the inner wall of the connecting ring (202) at a position corresponding to the circular groove (203). An arc-shaped elastic plate (205) is provided inside the push groove (204). The two ends of the elastic plate are fixedly connected to the inner wall of the push groove (204). The arc-shaped elastic plate (205) protrudes outward from the push groove (204) and is inserted into the inside of the circular groove (203).

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