Subway wireless charging device

Abstract

The utility model provides a wireless charging device for a subway. The wireless charging device comprises a surface film, a panel, a wireless charging module, a rear shell and a fixing piece, the interior of the rear shell is provided with enough space for placing the wireless charging module, the panel is placed above the wireless charging module and is fixedly connected with the wireless charging module, the surface film is attached to the surface of the panel, the panel further comprises a non-metal panel and a metal panel, the metal panel is provided with a through groove, the bottom of the inner side of the metal panel is provided with a supporting part, and the supporting part is provided with a through hole. And the metal panel is fixedly connected with the through hole in the non-metal panel through the supporting part. By adopting the design scheme of combining the metal panel and the non-metal panel, the weight of the device is reduced, the structural strength and durability are enhanced, and the wireless charging efficiency is ensured not to be influenced; the integrated design is adopted, the structure is compact, the strength is improved, and the applicability in the space limited environment is guaranteed.

Description

Technical Field

[0001] The utility model relates to the rail transportation industry, in particular to a wireless charging device for subways. Background Art

[0002] The development of wireless charging technology has significantly improved the convenience of daily life, allowing users to charge electronic devices without the need for physical cables. This technology is not only widely used in cars, hotels, restaurants, and public places such as airports and train stations, but its application is also expanding to meet people's demand for instant charging on the go, especially for portable devices such as smartphones.

[0003] With the popularity of mobile devices and people's increasing dependence on continuous communication, the demand for charging services on public transportation is also growing. Especially in high-traffic environments such as subways, while the level of intelligence continues to improve, more emphasis is also placed on passenger experience. However, although smartphone functions are becoming increasingly rich, battery life often cannot keep up, resulting in insufficient power becoming the norm. Traditional wired charging methods have many inconveniences when implemented in subway cars, such as difficult cable management, occupied space, and restricted passenger movement. In addition, most wireless charging solutions currently on the market are designed for home or office environments, with low support strength. In terms of structure and space, they cannot fully meet the specific needs of wireless charging in subway environments. Utility Model Content

[0004] In order to solve the problem of charging smartphones on the subway, the utility model provides a subway wireless charging device, including: a mask, a panel, a wireless charging module, a rear shell and a fixing part; a space is provided inside the rear shell to place the wireless charging module, the panel is placed above the wireless charging module and fixedly connected, the mask is attached to the surface of the panel, the panel includes a non-metallic panel and a metal panel, the metal panel has a through groove, and the inner bottom of the through groove is provided with a support part; the support part has a through hole, the metal panel is fixedly connected to the through hole on the non-metallic panel through the support part, the metal panel has a second through hole and a third through hole, the metal panel is fixedly connected to the subway installation table by means of the second through hole and the first screw, the charging part of the wireless charging module corresponds to the non-metallic panel, and the fixing part fixes the rear shell, the wireless charging module and the panel together through the third through hole.

[0005] Based on the above technical solution, the wireless charging module includes a wireless charging coil control PCB board and a power supply PCB board, and the metal panel is connected to the wireless charging coil control PCB board by means of the first through hole and the second screw.

[0006] Based on the above technical solution, the area of the metal panel is larger than the area of the top of the rear shell.

[0007] Based on the above technical solution, the charging part of the wireless charging module corresponds to the non-metallic panel.

[0008] Based on the above technical solution, the wireless charging module has a wiring portion at the bottom, and the wiring portion is connected to the 110V DC power of the subway through the bottom opening of the rear shell.

[0009] Based on the above technical solution, a wire tie rod is provided at the bottom of the rear shell.

[0010] The utility model has the following beneficial effects:

[0011] The wireless charging device adopts a design that combines metal panels with non-metal panels, which reduces the weight of the device and enhances the structural strength and durability. The non-metal panel is aligned with the charging part to ensure that the wireless charging efficiency is not affected; it adopts an integrated design with a compact structure and increased strength, ensuring its applicability in space-constrained environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 Schematic diagram of the bottom structure of the wireless charging device.

[0013] Figure 2 This is a structural diagram of the wireless charging device.

[0014] Figure 3 Schematic diagram of the connection between the wireless charging device and the subway.

[0015] Figure 4 This is the circuit diagram of the wireless charging module. DETAILED DESCRIPTION

[0016] The utility model is further described in detail below with reference to specific embodiments.

[0017] Reference Figure 1 The embodiment of the present application provides a subway wireless charging device, including a mask 1, a panel, a rear shell 6 and a fixing part 7; the mask is located on the surface of the device, displaying the user operation interface, which is beautiful and convenient to use; the panel adopts a combination of a metal panel 3 and a non-metallic panel 2 to increase structural stability and greatly improve charging efficiency; the rear shell is used to place the wireless charging module, which can be used to protect the internal structure of the device; the wireless charging module is located in the space formed by the panel and the rear shell, and there is a wiring part 501 at the bottom of the module, and the wiring part has multiple connection ports for easy connection; making the overall thickness thinner and occupying less space.

[0018] Preferably, the connection portion is directly connected to the 110V DC power of the subway through the bottom opening of the rear shell, without the need for additional conversion devices.

[0019] Preferably, the device has an integrated design, a compact structure, saves space, and is suitable for installation in the limited space of a subway car.

[0020] Specifically, in order to save space and reduce the overall thickness, the rear housing, the wireless charging module and the panel are fixedly connected together by a fixing piece. The fixing piece passes through the third through hole 304, and a screw of sufficient length can be used.

[0021] In order to reduce the weight of the device, enhance the structural strength of the device, and protect the internal components from external influences, a metal panel is combined with a non-metal panel. The metal panel has a through groove, and a support part 301 is provided at the bottom inside the through groove.

[0022] In order not to affect the charging efficiency and ensure that energy is smoothly transferred from the charger to the receiving device, the charging portion 4a of the wireless charging module corresponds to the non-metallic panel.

[0023] Preferably, a second through hole 303 and a third through hole 304 are provided on the metal panel, and the edge portion of the metal panel exceeds the edge of the top of the rear shell. The metal panel is connected to the subway mounting table 13 by means of the second through hole and the first screw, and the fixing member 7 fixes the rear shell, the wireless charging module and the panel together through the third through hole.

[0024] Preferably, a through groove 3a is provided on the metal panel 3, and a plurality of supporting parts are provided at the inner bottom of the through groove. The plurality of supporting parts can be symmetrically distributed, and through holes can be provided on the supporting parts.

[0025] According to one embodiment, four supporting parts are further provided on the metal panel. The first and third supporting parts are respectively symmetrical with the second and fourth supporting parts. There are through holes on the first and third supporting parts or the second and fourth supporting parts.

[0026] Preferably, screws are used to fix the through hole on the support portion and the through hole 201 on the non-metallic panel.

[0027] Specifically, the wireless charging module includes a wireless charging coil control PCB board 4 and a power supply PCB board 5. Figure 1 As shown, preferably, in order to prevent the shaking of the wireless charging coil control PCB board during subway operation from causing damage to components, a first through hole 302 is further provided on the metal panel, and the metal panel is connected to the wireless charging coil control PCB board by means of a second screw 401 and the first through hole 302.

[0028] like Figure 2 As shown, a wiring portion 501 is provided at the bottom of the power PCB board 5, and the wiring port is exposed through the opening at the bottom of the rear shell and connected to the 110V DC in the subway.

[0029] Preferably, in order to fix the cables, a cable tie rod 601 is provided at the bottom of the rear shell.

[0030] like Figure 3 As shown, the wireless charging device 12 is installed inside the subway using a fixing component 11 , and the plane where the mask 1 is located is on the same horizontal line as the subway installation surface 13 .

[0031] like Figure 4 As shown, to achieve wireless charging, a wireless charging module is provided. Specifically, it includes a power filter circuit, a DC / DC converter, a voltage conversion circuit, a wireless charging main controller, and an inverter circuit. Specifically, the power filter circuit receives an external DC 110V input power supply, filters out noise and ripple, and provides a relatively stable DC power supply. A voltage conversion DC / DC circuit is provided. After receiving the filtered 110V DC power supply, the DC / DC conversion circuit converts it into a 12V DC power supply.

[0032] A DC / DC converter is set up. Specifically, a switching power supply technology can be used to achieve voltage step-down conversion by controlling the on and off of the switching element. In addition, the 12V output voltage can be used to reserve a USB charging module interface.

[0033] Currently, the operating voltage of most smartphones is usually between 5V and 9V. Specifically, in order to meet the charging needs of smartphones, a voltage conversion circuit is set to further step down the 12V voltage and provide a stable output.

[0034] A wireless charging main controller is set up. Specifically, the main controller receives and processes various signals from the signal feedback circuit, monitors parameters such as voltage during the charging process, makes decisions based on this information, generates control signals and sends them to the drive circuit to dynamically adjust the wireless charging process.

[0035] A driving circuit is provided to convert direct current into a high-frequency pulse signal. Specifically, the driving circuit may be composed of power transistors or MOSFETs, and this is achieved by controlling the on and off of these switching elements.

[0036] An inverter circuit is set up to convert direct current into high-frequency alternating current. The circuit uses the high-frequency pulses provided by the driving circuit. Specifically, it can generate stable high-frequency alternating current through an LC oscillation circuit or other resonant circuit. The inverter circuit provides high-frequency AC power to the charging coil to drive the charging coil to work.

[0037] A charging coil is provided. Specifically, the charging coil receives high-frequency alternating current from an inverter circuit to generate an alternating electromagnetic field. The alternating electromagnetic field induces current in a receiving coil of a receiving device to achieve wireless energy transmission.

[0038] According to the subway wireless charging device in this embodiment, when a passenger places a device that supports wireless charging in the charging area, the receiving coil in the device is aligned with the transmitting coil of the wireless charging module, and the inverter circuit converts direct current into high-frequency alternating current. The transmitting coil generates an alternating magnetic field, and the receiving coil in the device senses this magnetic field, generating an induced current, thereby charging the device.

[0039] To ensure compatibility with a wide range of wireless charging-enabled smartphones, the device supports multiple standardized wireless charging protocols, ensuring that devices of different brands and models can be charged safely and efficiently.

[0040] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

[0041] Although the above describes the specific implementation methods of the present invention, it does not limit the scope of protection of the present invention. Technical personnel in the relevant field should understand that on the basis of the technical solution of the present invention, various modifications or variations that can be made by technical personnel in this field without creative work are still within the scope of protection of the present invention.

Claims

1. A wireless charging device for subway, characterized in that: include: A facial mask (1), a panel, a wireless charging module, a rear shell (6) and a fixing member (7), wherein a space is provided inside the rear shell (6) for placing the wireless charging module, the panel is placed above the wireless charging module and fixedly connected, the facial mask (1) is attached to the surface of the panel, the panel comprises a non-metallic panel (2) and a metal panel (3), the metal panel (3) has a through groove (3a), and the inner bottom of the through groove is provided with a support portion (301); the support portion (301) has a through hole, and the metal panel (3) The support portion (301) is fixedly connected to the through hole (201) on the non-metallic panel (2); the metal panel (3) is provided with a second through hole (303) and a third through hole (304); the metal panel is fixedly connected to the subway installation table (13) by means of a first screw and the second through hole (303); the charging portion (4a) of the wireless charging module corresponds to the non-metallic panel (2); the fixing member (7) passes through the third through hole (304) to fix the rear housing (6), the wireless charging module and the panel together.

2. A subway wireless charging device according to claim 1, characterized in that: The wireless charging module comprises a wireless charging coil control PCB board (4) and a power supply PCB board (5), and the metal panel (3) is connected to the wireless charging coil control PCB board (4) by means of a first through hole (302) and a second screw (401).

3. The subway wireless charging device according to claim 1, characterized in that: The area of the metal panel (3) is larger than the area of the top of the rear housing (6).

4. The subway wireless charging device according to claim 1, characterized in that: The bottom of the wireless charging module is provided with a connection portion (501), and the connection portion (501) is connected to the 110V direct current of the subway through the bottom opening of the rear housing (6).

5. The subway wireless charging device according to claim 1, characterized in that: A wire binding rod (601) is provided at the bottom of the rear housing (6).

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