A non-contact charging device based on electromagnetic induction

Abstract

The application relates to the field of wireless charging equipment, and discloses a non-contact charging equipment based on electromagnetic induction, which comprises a mounting base for the non-contact charging equipment based on electromagnetic induction, the bottom of the mounting base is provided with a buffer groove, the inner side of the buffer groove is provided with a damping mechanism, the top of the mounting base is provided with an equipment support, and the side of the equipment support is fixedly provided with a charging base; the top of the charging base is provided with a stable cavity, the side of the charging base is fixedly provided with a charging equipment main body, the charging equipment main body is used for placing a mobile phone, the inner side of the stable cavity is provided with a stabilizing mechanism, and the stabilizing mechanism is used for clamping the mobile phone. The application has the following advantages and effects: the mobile phone can be clamped by the heat dissipation strip, the stability of the connection between the mobile phone and the charging equipment is ensured, the practicability of the equipment is improved, and the influence of vibration on the equipment in a special environment can be reduced by the damping mechanism.

Description

Technical Field

[0001] This application relates to the field of wireless charging equipment technology, and in particular to a non-contact charging device based on electromagnetic induction. Background Technology

[0002] Wireless charging devices based on electromagnetic induction are devices that achieve contactless energy transfer using the principle of electromagnetic induction. At their core, an alternating current is passed through the transmitting coil to generate an alternating magnetic field. When the receiving coil approaches, it cuts the magnetic field lines, inducing an electromotive force according to Faraday's law of electromagnetic induction, thereby transferring electrical energy from the transmitting end to the receiving device. This device requires no physical cable connection, offering safety, convenience, and contactless operation. It is widely used in mobile phones, electric vehicles, wearable devices, and other fields. By optimizing coil design, magnetic core materials, and coupling technology, energy transfer efficiency and stability can be improved, making it an intelligent energy transfer solution combining electrical technology and mechanical engineering.

[0003] In existing technologies, wireless charging devices typically involve placing the phone directly on the device surface and securing it magnetically. However, accidental bumps can easily cause the phone to detach from the wireless charging device, causing significant inconvenience. Furthermore, in certain environments, such as inside a moving vehicle, the vibrations from the vehicle can lead to unstable connections between the phone and the device, potentially affecting the internal circuitry of the charging device and resulting in poor charging performance.

[0004] Therefore, we propose a contactless charging device based on electromagnetic induction to solve the above problems. Utility Model Content

[0005] In order to solve the problems of unstable connection between mobile phones and wireless charging devices and susceptibility to environmental vibration, this application provides a non-contact charging device based on electromagnetic induction.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a non-contact charging device based on electromagnetic induction, comprising a mounting base for the non-contact charging device based on electromagnetic induction, a buffer groove being provided at the bottom of the mounting base, a shock-absorbing mechanism being provided inside the buffer groove, a device bracket being provided at the top of the mounting base, and a charging base being fixedly mounted on one side of the device bracket; a stabilizing chamber being provided at the top of the charging base, and a charging device body being fixedly mounted on one side of the charging base, the charging device body being used to place a mobile phone, and a stabilizing mechanism being provided inside the stabilizing chamber, the stabilizing mechanism being used to clamp the mobile phone.

[0007] A further feature of this invention is that a mounting plate is fixedly mounted on the bottom of the mounting base, a rubber pad is fixedly mounted on the top of the mounting base, and the equipment bracket is fixedly mounted on the top of the rubber pad.

[0008] By adopting the above technical solutions, the transmission of minute vibrations can be further reduced, and anti-slip and insulation functions can be provided.

[0009] A further feature of this invention is that the shock absorption mechanism includes a polyurethane buffer ring, a shock absorption spring, and a damper. A polyurethane buffer ring is fixedly installed on the top inner wall of the buffer groove. The bottom of the polyurethane buffer ring is fixedly connected to the top of the mounting plate. A shock absorption spring is fixedly installed on the top of the mounting plate. A damper is fixedly installed on the top inner wall of the buffer groove. The top of the shock absorption spring is fixedly connected to the damper.

[0010] By adopting the above technical solutions, it is easier to mitigate vibrations.

[0011] A further feature of this invention is that four guide posts are fixedly installed on the bottom inner wall of the stabilizing chamber, and the same guide pad is slidably sleeved on each of the four guide posts. A reset spring is fixedly installed at the bottom of the guide pad, and the bottom end of the reset spring is fixedly connected to the bottom inner wall of the stabilizing chamber.

[0012] By adopting the above technical solution, it is easy to drive the cross-shaped inclined metal block to reset.

[0013] A further feature of this invention is that the stabilizing mechanism includes a cross-shaped inclined metal block and four clamping metal clips. The top of the guide pad is fixedly mounted with the cross-shaped inclined metal block, and all four ends of the cross-shaped inclined metal block are inclined surfaces. The charging base has four clamping chambers inside, and all four clamping chambers are connected to the same stabilizing chamber. Clamping metal clips are slidably mounted on the bottom inner walls of the four clamping chambers. One end of each of the four clamping metal clips is in contact with the corresponding inclined surface, and the other end of each of the four clamping metal clips extends out of the charging base.

[0014] By adopting the above technical solution, the four clamping metal clips can be moved by the cross-shaped inclined metal block.

[0015] A further feature of this invention is that each of the four inclined surfaces is provided with a linkage protrusion, and each of the four clamping metal clips is provided with a linkage groove at the end that contacts the inclined surface, with the four linkage protrusions respectively matching the corresponding linkage grooves.

[0016] By adopting the above technical solution, the cross-shaped inclined metal block can drive the corresponding clamping metal clips to move closer or further apart through the four linked protrusions.

[0017] A further feature of this invention is that: heat dissipation strips are fixedly installed at one end of each of the four clamping metal clips extending from the charging base, and thermally conductive silicone sheets are fixedly installed on one side of each of the four heat dissipation strips, with the four thermally conductive silicone sheets respectively contacting the four sides of the mobile phone.

[0018] By adopting the above technical solution, the stability of the mobile phone during charging can be guaranteed.

[0019] A further feature of this invention is that a linkage bar is fixedly installed on the top of the cross-shaped inclined metal block, and linkage plates are fixedly installed at both ends of the linkage bar. Both linkage plates slide through the same charging device body, and both linkage plates are in contact with the bottom surface of the mobile phone.

[0020] By adopting the above technical solution, it is easy to move the two linkage plates by using a mobile phone.

[0021] This application includes at least one of the following beneficial technical effects: the stabilizing mechanism can clamp the mobile phone using the heat dissipation strip, which can not only ensure the stable connection between the mobile phone and the charging device, but also help dissipate heat, increasing the practicality of the device. Furthermore, the shock absorption mechanism can reduce the impact of vibration on the device in special environments, increasing charging stability and improving the device's performance. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of a contactless charging device based on electromagnetic induction proposed in this embodiment;

[0023] Figure 2 This is a three-dimensional structural breakdown diagram of a contactless charging device based on electromagnetic induction proposed in this embodiment;

[0024] Figure 3 This is a three-dimensional structural breakdown diagram of the shock absorption mechanism of a non-contact charging device based on electromagnetic induction proposed in this embodiment;

[0025] Figure 4 This is a three-dimensional cross-sectional view of the stabilization mechanism of a non-contact charging device based on electromagnetic induction proposed in this embodiment;

[0026] Figure 5 This is a three-dimensional structural breakdown diagram of the stabilization mechanism of a contactless charging device based on electromagnetic induction proposed in this embodiment.

[0027] In the diagram, 1. Mounting base; 2. Mounting plate; 3. Polyurethane buffer ring; 4. Shock-absorbing spring; 5. Damper; 6. Rubber pad; 7. Equipment bracket; 8. Charging base; 9. Charging equipment body; 10. Return spring; 11. Guide column; 12. Guide pad; 13. Cross-shaped beveled metal block; 14. Linkage bar; 15. Linkage plate; 16. Clamping metal clip; 17. Heat dissipation bar; 18. Thermal conductive silicone sheet. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0029] This application discloses a contactless charging device based on electromagnetic induction, including a mounting base 1 for the contactless charging device based on electromagnetic induction. The bottom of the mounting base 1 is provided with a buffer groove, and the inner side of the buffer groove is provided with a shock absorption mechanism. The top of the mounting base 1 is provided with a device bracket 7, and a charging base 8 is fixedly installed on one side of the device bracket 7. The top of the charging base 8 is provided with a stabilizing chamber, and a charging device body 9 is fixedly installed on one side of the charging base 8. The charging device body 9 is used to place a mobile phone, and the inner side of the stabilizing chamber is provided with a stabilizing mechanism for clamping the mobile phone.

[0030] Specifically, a mounting plate 2 is fixedly installed at the bottom of the mounting base 1, and a rubber pad 6 is fixedly installed at the top of the mounting base 1. The equipment bracket 7 is fixedly installed on the top of the rubber pad 6, which can further reduce the transmission of minor vibrations and provide anti-slip and insulation functions.

[0031] Specifically, the damping mechanism includes a polyurethane buffer ring 3, a damping spring 4, and a damper 5. The polyurethane buffer ring 3 is fixedly installed on the top inner wall of the buffer groove. The bottom of the polyurethane buffer ring 3 is fixedly connected to the top of the mounting plate 2. The damping spring 4 is fixedly installed on the top inner wall of the buffer groove. The top of the damping spring 4 is fixedly connected to the damper 5, which facilitates the mitigation of vibration.

[0032] Specifically, four guide posts 11 are fixedly installed on the bottom inner wall of the stabilizing chamber. The same guide pad 12 is slidably sleeved on each of the four guide posts 11. A reset spring 10 is fixedly installed at the bottom of the guide pad 12. The bottom end of the reset spring 10 is fixedly connected to the bottom inner wall of the stabilizing chamber, so as to drive the cross-shaped inclined metal block 13 to reset.

[0033] Specifically, the stabilizing mechanism includes a cross-shaped inclined metal block 13 and four clamping metal clips 16. The cross-shaped inclined metal block 13 is fixedly installed on the top of the guide pad 12. All four ends of the cross-shaped inclined metal block 13 are inclined surfaces. The charging base 8 has four clamping chambers inside, and all four clamping chambers are connected to the same stabilizing chamber. Clamping metal clips 16 are slidably installed on the bottom inner wall of each of the four clamping chambers. One end of each of the four clamping metal clips 16 is in contact with the corresponding inclined surface, and the other end of each of the four clamping metal clips 16 extends out of the charging base 8. The cross-shaped inclined metal block 13 can drive the four clamping metal clips 16 to move.

[0034] Specifically, each of the four inclined surfaces is provided with a linkage protrusion, and each of the four clamping metal clips 16 is provided with a linkage groove at the end that contacts the inclined surface. The four linkage protrusions are respectively adapted to the corresponding linkage grooves. The cross-shaped inclined metal block 13 can drive the corresponding clamping metal clips 16 to move closer or further away from each other through the four linkage protrusions.

[0035] Specifically, each of the four clamping metal clips 16 extending from one end of the charging base 8 is fixedly equipped with a heat dissipation strip 17, and each of the four heat dissipation strips 17 is fixedly equipped with a thermally conductive silicone sheet 18 on one side. The four thermally conductive silicone sheets 18 are in contact with the four sides of the phone, which can ensure the stability of the phone during charging.

[0036] Specifically, a linkage bar 14 is fixedly installed on the top of the cross-shaped inclined metal block 13, and linkage plates 15 are fixedly installed at both ends of the linkage bar 14. Both linkage plates 15 slide through the same charging device body 9, and both linkage plates 15 are in contact with the bottom surface of the mobile phone, so that the two linkage plates 15 can be moved by the mobile phone.

[0037] Working Principle: When charging a mobile phone using the device, the user places the phone on the charging device body 9. The phone connects via a magnetic ring on the charging device body 9. As the phone approaches the charging device body 9, it presses against two linkage plates 15. The movement of the two linkage plates 15 moves a single linkage bar 14, which in turn moves a cross-shaped inclined metal block 13. Each of the four ends of the cross-shaped inclined metal block 13 has a linkage protrusion. Four clamping metal clips 16 are slidably mounted on the inner side of the charging base 8. Each of the four clamping metal clips 16 has a linkage groove on the side closest to its corresponding inclined surface. The four linkage protrusions move the corresponding linkage grooves, causing the cross-shaped inclined metal block 13 to move downwards, moving the four clamping metal clips 16 towards the center. This, in turn, moves the four heat dissipation strips 17, clamping the phone. A thermally conductive silicone sheet 18 is provided on the side of the heat dissipation strip 17 that contacts the phone, ensuring effective heat dissipation. It can prevent the heat sink 17 from damaging the side of the mobile phone. When the device is used in a vibrating environment, the external vibration is transmitted to the shock absorption mechanism through the mounting plate 2 and the mounting base 1. Then, the vibration is initially buffered by the polyurethane buffer ring 3 and transmitted upward. The shock absorption spring 4 and the rubber pad 6 absorb the vibration. The elastic element deforms and converts the vibration kinetic energy into elastic potential energy, thus reducing the impact. Due to its elastic and viscoelastic properties, the polyurethane buffer ring 3 further absorbs high-frequency vibration energy and reduces rigid collisions. The damper 5 works in parallel with the shock absorption spring 4. During the movement of the shock absorption spring 4, the internal friction structure of the damper generates damping force, converting the elastic potential energy into heat energy and suppressing the reciprocating oscillation of the shock absorption spring 4 to avoid resonance. After elastic buffering and damping energy dissipation, when the residual vibration is transmitted to the charging base 8 through the device bracket 7, the energy has been greatly attenuated, achieving the vibration isolation effect. The rubber pad 6, as the end buffer layer, further reduces the transmission of minor vibrations and provides anti-slip and insulation functions.

[0038] With the above structure, the contactless charging device based on electromagnetic induction provided by this application can use the heat dissipation strip 17 to clamp the mobile phone. While ensuring a stable connection between the mobile phone and the main body 9 of the charging device, it can also help dissipate heat, increasing the practicality of the device. Furthermore, through the shock absorption mechanism, the impact of vibration on the device in special environments can be reduced, increasing charging stability and improving the usage effect of the device.

[0039] In practical applications, the Shore A hardness of the polyurethane buffer ring 3 is set to 20-40A. This hardness range ensures both good elastic buffering performance and effective absorption of high-frequency vibration energy. The elastic coefficient of the damping spring 4 is set to 10-30 N / mm, and is reasonably adjusted according to the actual use scenario of the equipment and the possible vibration intensity to ensure good buffering effect for vibrations of different degrees. The damping coefficient of the damper 5 is set to 5-15 N·s / m, and works in conjunction with the damping spring 4 to effectively suppress the reciprocating oscillation of the damping spring 4. When external vibrations are transmitted to the damping mechanism through the mounting plate 2 and mounting base 1, the polyurethane buffer ring 3 first converts some of the high-frequency vibration energy into heat energy through its own elastic deformation and viscoelastic properties, thus initially buffering the vibration. Subsequently, the remaining vibration causes the damping spring 4 to undergo compression or tension deformation, converting the vibration kinetic energy into elastic potential energy and reducing the impact. At the same time, the damper 5 is connected in parallel with the damping spring 4. During the movement of the damping spring 4, the friction structure inside the damper 5 generates damping force, further converting the elastic potential energy into heat energy and dissipating it, effectively suppressing the rebound oscillation of the damping spring 4, avoiding the occurrence of resonance, and significantly attenuating the vibration energy.

[0040] Regarding the operation control of the stabilizing mechanism, when the mobile phone is placed on the charging device body 9, the pressure of the mobile phone on the linkage plate 15 needs to be greater than 1N to ensure that the linkage plate 15 can overcome the initial elastic force of the return spring 10 and smoothly drive the linkage bar 14 and the cross-shaped inclined metal block 13 to move downward. The inclined angle of the cross-shaped inclined metal block 13 is designed to be 45°. This angle can ensure linkage efficiency while allowing the clamping metal clip 16 to obtain a suitable clamping force. The sliding stroke of the clamping metal clip 16 in the clamping cavity is set to 5-10mm to adapt to the clamping requirements of mobile phones of different sizes. When the cross-shaped inclined metal block 13 moves downward, the linkage protrusion on its inclined surface tightly engages with the linkage groove at one end of the clamping metal clip 16. As the cross-shaped inclined metal block 13 moves downward, the four clamping metal clips 16 move towards the center under the linkage action until the thermally conductive silicone sheet 18 is tightly attached to the perimeter of the phone. At this point, the clamping force is controlled at 2-5N, which ensures the phone is stably fixed without causing damage due to excessive clamping force. After the phone is removed from the charging device body 9, the return spring 10 provides an upward elastic force, pushing the guide pad 12 and the cross-shaped inclined metal block 13 to return to their original position. The linkage protrusion engages with the linkage groove, causing the four clamping metal clips 16 to move outward, returning to their initial state, ready for the next clamping operation.

[0041] Furthermore, the heat dissipation strip 17 is made of aluminum alloy with a thermal conductivity of not less than 200 W / (m·K) and has honeycomb-shaped heat dissipation holes on its surface. The diameter of each heat dissipation hole is 1 mm and the spacing between holes is 2 mm to increase the heat dissipation area and improve heat dissipation efficiency. The thermally conductive silicone sheet 18 has a thickness of 0.5 mm and a thermal conductivity of not less than 1.5 W / (m·K), which can effectively conduct the heat generated during the charging process to the heat dissipation strip 17 and then dissipate it through air convection. This further solves the charging heat dissipation problem not mentioned in the background technology and ensures the stability and safety of the mobile phone during charging.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A contactless charging device based on electromagnetic induction, characterized in that, It includes a mounting base (1) for a non-contact charging device based on electromagnetic induction, the bottom of the mounting base (1) is provided with a buffer groove, the inner side of the buffer groove is provided with a shock absorption mechanism, the top of the mounting base (1) is provided with a device bracket (7), and a charging base (8) is fixedly installed on one side of the device bracket (7). The top of the charging base (8) is provided with a stabilizing chamber, and a charging device body (9) is fixedly installed on one side of the charging base (8). The charging device body (9) is used to place the mobile phone. A stabilizing mechanism is provided inside the stabilizing chamber. The stabilizing mechanism is used to clamp the mobile phone. Four guide posts (11) are fixedly installed on the bottom inner wall of the stabilizing chamber. The same guide pad (12) is slidably sleeved on each of the four guide posts (11). A reset spring (10) is fixedly installed at the bottom of the guide pad (12). The bottom end of the reset spring (10) is fixedly connected to the bottom inner wall of the stabilizing chamber. The stabilizing mechanism includes a cross-shaped inclined metal block (13) and four clamping metal clips (16). The top of the guide pad (12) is fixedly installed with the cross-shaped inclined metal block (13). All four ends of the cross-shaped inclined metal block (13) are inclined surfaces. The charging base (8) has four clamping chambers inside. All four clamping chambers are connected to the same stabilizing chamber. The clamping metal clips (16) are slidably installed on the bottom inner walls of the four clamping chambers. One end of each of the four clamping metal clips (16) is in contact with the corresponding inclined surface. The other end of each of the four clamping metal clips (16) extends out of the charging base (8). Each of the four inclined surfaces is provided with a linkage protrusion, and each of the four clamping metal clips (16) is provided with a linkage groove at the end that contacts the inclined surface. The four linkage protrusions are respectively matched with the corresponding linkage grooves. Each of the four clamping metal clips (16) extending out of the charging base (8) is fixedly equipped with a heat sink (17), and each of the four heat sinks (17) is fixedly equipped with a thermally conductive silicone sheet (18) on one side, and the four thermally conductive silicone sheets (18) are in contact with the four sides of the mobile phone respectively.

2. The contactless charging device based on electromagnetic induction according to claim 1, characterized in that: The mounting base (1) has a mounting plate (2) fixedly installed at its bottom, and a rubber pad (6) fixedly installed at its top. The equipment bracket (7) is fixedly installed on the top of the rubber pad (6).

3. The contactless charging device based on electromagnetic induction according to claim 2, characterized in that: The damping mechanism includes a polyurethane buffer ring (3), a damping spring (4), and a damper (5). The polyurethane buffer ring (3) is fixedly installed on the top inner wall of the buffer groove. The bottom of the polyurethane buffer ring (3) is fixedly connected to the top of the mounting plate (2). The damping spring (4) is fixedly installed on the top of the mounting plate (2). The damper (5) is fixedly installed on the top inner wall of the buffer groove. The top of the damping spring (4) is fixedly connected to the damper (5).

4. The contactless charging device based on electromagnetic induction according to claim 1, characterized in that: A linkage bar (14) is fixedly installed on the top of the cross-shaped inclined metal block (13). A linkage plate (15) is fixedly installed at both ends of the linkage bar (14). Both linkage plates (15) slide through the same charging device body (9). Both linkage plates (15) are in contact with the bottom surface of the mobile phone.

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