Wireless charging transmitting terminal control device with high-efficiency energy conversion
By adjusting the coil spacing and distribution through an adjustable coil mechanism, the problem of fixed receiving coil position in wireless charging is solved, achieving efficient energy conversion and safe energy transmission.
Patent Information
- Application Number
- CN202520609402.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-04-02
AI Technical Summary
In existing wireless charging transmitters, the receiving coil is in a fixed position and cannot be adjusted according to the device's placement, resulting in reduced energy conversion efficiency and a risk of overheating.
An adjustable coil mechanism is adopted, including components such as a lifting plate, an electric push rod, a combined coil, and a drive motor. By adjusting the coil spacing and distribution, optimal alignment with the receiving coil is achieved, thereby improving energy conversion efficiency.
Improve energy conversion efficiency within a safe range, reduce energy transmission loss, and ensure optimal energy transmission performance.
Smart Images

Figure CN223785816U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of wireless charging technology, specifically relating to a high-efficiency energy conversion wireless charging transmitter control device. Background Technology
[0002] Wireless charging technology is a technology that transmits electrical energy through electromagnetic fields, charging devices without a physical connection. Wireless charging primarily relies on the principle of electromagnetic induction. When alternating current is applied to the transmitting coil, it generates an alternating magnetic field. The receiving coil senses this magnetic field and converts it into current, which is then rectified to charge the battery. The distance between the transmitting and receiving coils affects the energy conversion efficiency; however, too close a distance can easily lead to overheating. The alignment of the transmitting and receiving coils also affects energy conversion efficiency. However, the position and arrangement of the receiving coil inside the current wireless charging transmitter are fixed during manufacturing and cannot be adjusted according to the placement of the device being charged or the installation position of the receiving coil, leading to a decrease in energy conversion efficiency. Utility Model Content
[0003] The purpose of this invention is to provide a wireless charging transmitter control device for high-efficiency energy conversion. It can adjust the position of the transmitting coil and change the spacing between the transmitting and receiving coils according to the placement of the device being charged and the installation position of the receiving coil, thereby achieving more efficient energy conversion within a safe range.
[0004] The specific technical solution adopted by this utility model is as follows:
[0005] A high-efficiency energy conversion wireless charging transmitter control device includes a housing, and an adjustable coil mechanism is slidably installed inside the housing;
[0006] The adjustable coil mechanism includes a lifting plate, which is slidably installed inside a housing. An electric push rod is fixed inside the housing, and the output end of the electric push rod is fixed to the bottom of the lifting plate. A combined coil is installed above the lifting plate, which consists of several small coils. A coil winding plate is slidably installed on the upper surface of the lifting plate, and the small coils are installed above the coil winding plate.
[0007] Furthermore, the surface of the lifting plate is provided with a sliding groove, and a guide slide rod is slidably installed inside the sliding groove. A slide rod push plate is fixed in the middle of the bottom of the lifting plate, and a transmission motor is fixed at the output end of the slide rod push plate. The outer periphery of the transmission motor is in contact with the bottom of the guide slide rod.
[0008] Furthermore, a guide frame is installed at the bottom of the lifting plate and below the slide groove. An elastic element is installed inside the guide frame. The bottom of the guide slide rod is slidably installed inside the guide frame, and one end of the guide slide rod is fixed to one end of the elastic element.
[0009] Furthermore, a transparent plate is installed on the upper surface of the housing. The transparent plate is annular, and the outer and inner sides of the transparent plate are located at the maximum boundary of the expansion and the maximum boundary of the contraction of the combined coil, respectively.
[0010] Furthermore, a battery compartment is provided on one side of the housing, and a battery isolation plate is fixed on one side of the lifting plate. The battery isolation plate is slidably installed inside the battery compartment. A circuit board is fixed on the top of the battery isolation plate and is connected to the combined coil. A storage battery is fixed at the bottom inside the battery isolation plate and is used to power the device.
[0011] The technical effects achieved by this utility model are as follows:
[0012] This invention utilizes a modular coil design, combined with the linkage between the coil winding plate, guide slide rod, and transmission motor, to allow the distribution of several small coils forming the modular coil to change according to the different receiving coils. This enables the modular coil and the receiving coil to be aligned to a greater extent, reducing energy loss during transmission and achieving efficient energy transmission. Furthermore, in conjunction with an electric push rod, the height of the modular coil can be changed, adjusting the distance between it and the receiving coil to maintain optimal spacing, ensuring safety while achieving the best energy conversion efficiency. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a cross-sectional structural diagram of the shell of this utility model;
[0015] Figure 3 This is a cross-sectional structural diagram of one end of the present invention;
[0016] Figure 4 This is an exploded view of the adjustable coil mechanism of this utility model;
[0017] Figure 5 This is a cross-sectional structural diagram of the adjustable coil mechanism of this utility model.
[0018] The attached diagram lists the components represented by each number as follows:
[0019] 1. Housing; 2. Adjustable coil mechanism; 11. Transparent plate; 12. Battery compartment; 21. Lifting plate; 22. Battery isolation plate; 23. Combined coil; 24. Circuit board; 25. Coil winding plate; 26. Guide slide rod; 27. Guide frame; 28. Elastic element; 29. Electric push rod; 30. Drive motor; 31. Slide rod push plate; 32. Storage battery. Detailed Implementation
[0020] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.
[0021] like Figures 1 to 5 As shown, a high-efficiency energy conversion wireless charging transmitter control device includes a housing 1, and an adjustable coil mechanism 2 is slidably installed inside the housing 1.
[0022] The adjustable coil mechanism 2 includes a lifting plate 21, which is slidably installed inside the housing 1. An electric push rod 29 is fixed inside the housing 1. The output end of the electric push rod 29 is fixed to the bottom of the lifting plate 21. A combined coil 23 is installed above the lifting plate 21. The combined coil 23 is composed of several small coils. A coil winding plate 25 is slidably installed on the upper surface of the lifting plate 21. The small coils are installed above the coil winding plate 25.
[0023] A battery compartment 12 is provided on one side of the housing 1, and a battery isolation plate 22 is fixed on one side of the lifting plate 21. The battery isolation plate 22 is slidably installed inside the battery compartment 12. A circuit board 24 is fixed on the top of the battery isolation plate 22. The circuit board 24 is connected to the combined coil 23. A storage battery 32 is fixed at the bottom inside the battery isolation plate 22. The storage battery 32 is used to power the device.
[0024] The device for wireless charging is placed above the housing 1. An alternating magnetic field is formed by the combined coil 23. The alternating magnetic field passes through the receiving coil, generating an induced current. After being processed by circuits such as rectification and voltage regulation, the device is charged.
[0025] Secondly, during the charging process, the height of the combined coil 23 can be raised and lowered by the electric push rod 29, the distance between the combined coil 23 and the receiving coil of the charging device can be adjusted, the coil winding plate 25 can be controlled to slide, and the position of each small coil that makes up the combined coil 23 can be changed to better match the receiving coil of the charging device, thereby making the energy conversion efficiency higher.
[0026] It should be noted that the combined coil 23 is a single coil, with a small coil wound above each coil winding plate 25, and sufficient extension lines are left between each pair of small coils to allow for the expansion and contraction of the small coils.
[0027] Please refer to the following: Figure 4 and Figure 5 As shown, the surface of the lifting plate 21 is provided with a groove, and a guide slide rod 26 is slidably installed inside the groove. A slide rod push plate 31 is fixed in the middle of the bottom of the lifting plate 21, and a transmission motor 30 is fixed at the output end of the slide rod push plate 31. The outer periphery of the transmission motor 30 is in contact with the bottom of the guide slide rod 26.
[0028] A guide frame 27 is installed at the bottom of the lifting plate 21 and below the slide groove. An elastic element 28 is installed inside the guide frame 27. The bottom of the guide slide rod 26 is slidably installed inside the guide frame 27, and one end of the guide slide rod 26 is fixed to one end of the elastic element 28.
[0029] As described above, when adjusting the position of the coil winding plate 25, the transmission motor 30 is rotated by the slide bar push plate 31. When the transmission motor 30 rotates, its outer periphery is attached to the bottom of the guide slide bar 26, and the inclined surface on its outer periphery is used to squeeze the guide slide bar 26 to slide along the guide frame 27. At the same time, under the push of the elastic member 28, the guide slide bar 26 can always be attached to the outer periphery of the transmission motor 30, thereby achieving the function of controlling the movement of the coil winding plate 25 by rotating the transmission motor 30. This allows the combined coil 23 to expand and contract as a whole, thereby achieving better alignment when the receiving coil is in different positions, and increasing the energy conversion efficiency.
[0030] Please refer to it again. Figure 2 As shown, a transparent plate 11 is installed on the upper surface of the housing 1. The transparent plate 11 is annular, and the outer and inner sides of the transparent plate 11 are located at the maximum expansion boundary and the maximum contraction boundary of the combined coil 23, respectively.
[0031] As described above, the expansion and contraction of the combined coil 23 can be directly observed through the battery isolation plate 22.
[0032] The working principle of this utility model is as follows: the electric push rod 29 can push the height of the control lifting plate 21 to adjust the vertical distance between the combined coil 23 and the receiving coil. Under the safe distance, the two are kept at the optimal spacing to reduce energy transmission loss. At the same time, the slide push plate 31 drives the transmission motor 30 to rotate, which can push the guide slide rod 26 to slide, and drive the coil winding plate 25 to move, changing the distribution state of the small coils, so that the combined coil 23 can be better aligned with the receiving coil, increasing the energy transmission efficiency.
[0033] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.
Claims
1. A high-efficiency energy conversion wireless charging transmitter control device, characterized in that: Includes a housing (1), and an adjustable coil mechanism (2) is slidably mounted inside the housing (1); The adjustable coil mechanism (2) includes a lifting plate (21), which is slidably installed inside the housing (1). An electric push rod (29) is fixed inside the housing (1). The output end of the electric push rod (29) is fixed to the bottom of the lifting plate (21). A combined coil (23) is installed above the lifting plate (21). The combined coil (23) is composed of several small coils. A coil winding plate (25) is slidably installed on the upper surface of the lifting plate (21). The small coils are installed above the coil winding plate (25).
2. The high-efficiency energy conversion wireless charging transmitter control device according to claim 1, characterized in that: The surface of the lifting plate (21) is provided with a sliding groove, and a guide slide rod (26) is slidably installed inside the sliding groove. A slide rod push plate (31) is fixed in the middle of the bottom of the lifting plate (21), and a transmission motor (30) is fixed at the output end of the slide rod push plate (31). The outer periphery of the transmission motor (30) is in contact with the bottom of the guide slide rod (26).
3. The high-efficiency energy conversion wireless charging transmitter control device according to claim 2, characterized in that: A guide frame (27) is installed at the bottom of the lifting plate (21) and below the slide groove. An elastic element (28) is installed inside the guide frame (27). The bottom of the guide slide rod (26) is slidably installed inside the guide frame (27), and one end of the guide slide rod (26) is fixed to one end of the elastic element (28).
4. The high-efficiency energy conversion wireless charging transmitter control device according to claim 1, characterized in that: A transparent plate (11) is installed on the upper surface of the housing (1). The transparent plate (11) is annular, and the outer and inner sides of the transparent plate (11) are located at the maximum expansion boundary and the maximum contraction boundary of the combined coil (23), respectively.
5. The high-efficiency energy conversion wireless charging transmitter control device according to claim 1, characterized in that: A battery compartment (12) is provided on one side of the housing (1), and a battery isolation plate (22) is fixed on one side of the lifting plate (21). The battery isolation plate (22) is slidably installed inside the battery compartment (12). A circuit board (24) is fixed on the top of the battery isolation plate (22). The circuit board (24) is connected to the combined coil (23). A storage battery (32) is fixed at the bottom inside the battery isolation plate (22). The storage battery (32) is used to power the device.