An audio decoder for mobile phones

Abstract

The utility model provides a kind of audio decoder specially matched with mobile phone, it is related to audio decoder technical field, including magnetic sheet and decoder, the decoder is magnetically attracted adaptation with magnetic sheet, the decoder includes USB-C connecting line, aluminium alloy shell and circuit board, the circuit board is located inside aluminium alloy shell, the connection of one end of USB-C connecting line and circuit board, and the other end of USB-C connecting line extends out aluminium alloy shell and is connected with vertical USB-C connector;Multiple socket components are equipped on the circuit board;The utility model will a piece of magnetic sheet be pasted on the position close to bottom of mobile phone back, and the aluminium alloy shell bottom of decoder is designed with magnet, and aluminium alloy shell can be easily adsorbed together in line with magnetic sheet, by multiple socket components on the circuit board of decoder, it is convenient to connect multiple external wires, after collocation use form is simple, wiring is neat, can adapt to mobile phone of different sizes.

Description

Technical Field

[0001] This utility model relates to the field of audio decoder technology, and in particular to an audio decoder specifically designed for use with mobile phones. Background Technology

[0002] When using high-fidelity wired headphones and audio decoders with a mobile phone, the phone's USB-C port will be occupied. If the phone needs to be charged while using the headphones, the audio decoder needs to have a charging expansion port. In this case, at least three cables need to be connected: one headphone cable to the headphones, one USB-C cable to connect the decoder to the phone, and one USB charging cable to the charging device. When holding the connected devices by hand, auxiliary devices such as straps, Velcro straps, or storage bags are usually used to organize them.

[0003] When professional audio decoders are used on mobile phones, they generally take up a large volume and have complicated wiring due to the thicker cables and more interfaces, and they are difficult to adapt to different mobile phones. Therefore, this utility model proposes an audio decoder specifically for mobile phones to solve the problems existing in the prior art. Utility Model Content

[0004] To address the aforementioned issues, this utility model proposes an audio decoder specifically designed for mobile phones. This decoder uses a magnetic strip attached to the back of the phone near the bottom. The bottom of the decoder's aluminum alloy casing is designed with a magnet, allowing the aluminum alloy casing to easily adhere to the magnetic strip. The decoder's circuit board features a multi-socket assembly that facilitates the connection of various external cables. When used together, the decoder has a simple design and neat wiring, and can accommodate mobile phones of different sizes and those with different protective cases.

[0005] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: an audio decoder for mobile phones, including a magnetic stripe and a decoder, wherein the decoder is magnetically adapted to the magnetic stripe, the decoder includes a USB-C connection cable, an aluminum alloy shell and a circuit board, the circuit board is disposed inside the aluminum alloy shell, one end of the USB-C connection cable is connected to the circuit board, and the other end of the USB-C connection cable extends out of the aluminum alloy shell and is connected to a vertical USB-C connector;

[0006] The circuit board is provided with a multi-socket assembly, and the multi-socket assembly extends through the aluminum alloy shell.

[0007] A further improvement is that the multi-socket assembly includes a USB socket, a 3.5mm headphone jack, and a 4.4mm headphone jack.

[0008] A further improvement is that: the aluminum alloy shell is provided with a top cover, and magnets are provided on both sides of the bottom of the aluminum alloy shell, and the magnets are magnetically matched with the magnetic attracting sheet.

[0009] A further improvement is that the magnetic strip is attached to the back of the phone near the bottom, and the decoder is magnetically attached to the magnetic strip.

[0010] A further improvement is that a cable routing port is provided on one side of the front end of the aluminum alloy shell, and a groove is provided in the middle of the bottom of the aluminum alloy shell. One end of the USB-C cable passes through the cable routing port into the interior of the aluminum alloy shell, and the groove is used to limit the USB-C cable.

[0011] A further improvement is that the vertical USB-C connector is used to connect to the interface of a mobile phone, and the outer side of the vertical USB-C connector is provided with a connector housing.

[0012] A further improvement is that the magnetizing sheet includes a magnetizing sheet, cowhide, and a microfiber layer, with the microfiber layer disposed on the bottom surface of the magnetizing sheet and the cowhide disposed on the surface of the magnetizing sheet.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This utility model involves attaching a magnetic sheet to the back of the phone near the bottom. The bottom of the decoder's aluminum alloy shell is designed with a magnet. The aluminum alloy shell can be easily attached to the magnetic sheet. Through the multi-socket assembly on the decoder's circuit board, various external cables can be easily connected. After use, the design is simple and the wiring is neat. It can adapt to phones of different sizes and phones with different protective cases.

[0015] 2. The magnetic sheet of this utility model is wrapped with cowhide, which can protect the phone shell and improve the comfort of holding it when the decoder is not in use.

[0016] 3. The USB-C connector of this utility model is designed with a special shape. The plug uses a vertical USB-C connector for connecting to the mobile phone interface. After bending the USB-C connector, it goes around the bottom groove of the decoder and is installed inside the aluminum alloy shell to connect to the circuit board. When the decoder is attached to the back of the mobile phone, it can press down the cable. The degree of bending of the cable changes when the vertical USB-C connector is plugged in and out. This displacement structure can protect the cable joints from being damaged by excessive bending. Attached Figure Description

[0017] Figure 1 This is a schematic diagram showing the disassembled parts of this utility model;

[0018] Figure 2 This is a schematic diagram of the decoder installation according to this utility model;

[0019] Figure 3 This is a schematic diagram of the installation of the magnetic strip of this utility model;

[0020] Figure 4 This is a schematic diagram of the circuit board of this utility model;

[0021] Figure 5 This is a schematic diagram of the bottom of the aluminum alloy shell of this utility model;

[0022] Figure 6 This is a schematic diagram of the magnetic strip of this utility model;

[0023] Figure 7 This is a schematic diagram of the working principle of the USB bridging of this utility model;

[0024] Figure 8 This is a schematic diagram of the working power supply of this utility model.

[0025] The components include: 1. Magnetizing sheet; 2. Aluminum alloy shell; 3. USB-C cable; 4. Circuit board; 5. Vertical USB-C connector; 6. USB socket; 7. 3.5mm headphone jack; 8. 4.4mm headphone jack; 9. Top cover; 10. Magnet; 11. Cable routing port; 12. Groove; 13. Connector shell; 14. Magnetizing sheet; 15. Leather; 16. Microfiber layer; 17. Mobile phone. Detailed Implementation

[0026] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0027] Example 1

[0028] according to Figure 1 , 2 As shown in 3, 4, 5, 6, 7, and 8, this embodiment proposes an audio decoder specifically for mobile phones, including a magnetic stripe 1 and a decoder. The decoder is magnetically adapted to the magnetic stripe 1. The decoder includes a USB-C cable 3, an aluminum alloy shell 2, and a circuit board 4. The circuit board 4 is located inside the aluminum alloy shell 2. One end of the USB-C cable 3 is connected to the circuit board 4, and the other end of the USB-C cable 3 extends out of the aluminum alloy shell 2 and is connected to a vertical USB-C connector 5.

[0029] The circuit board 4 is equipped with a multi-socket assembly, which extends through the aluminum alloy shell 2. The USB-C cable 3 is a flexible and retractable cable. In use, a magnetic sheet 1 is attached to the back of the phone 17 near the bottom. The bottom of the aluminum alloy shell 2 of the decoder is designed with a magnet 10. The aluminum alloy shell 2 can be easily attached to the magnetic sheet 1. Through the multi-socket assembly on the circuit board 4 of the decoder, it is convenient to connect various external cables. After use, the design is simple and the wiring is neat. It can adapt to mobile phones of different sizes and mobile phones with different protective cases.

[0030] The multi-socket assembly includes a USB socket 6, a 3.5mm headphone jack 7, and a 4.4mm headphone jack 8.

[0031] The aluminum alloy casing 2 has a top cover 9 on its upper part, and magnets 10 are provided on both sides of the bottom of the aluminum alloy casing 2. The magnets 10 are magnetically compatible with the magnetic attracting sheet 1. The magnetic attracting sheet 1 is used to attach to the back of the mobile phone 17 near the bottom, and the decoder is magnetically attracted to the magnetic attracting sheet 1. The bottom of the aluminum alloy casing 2 of the decoder is designed with magnets 10, and the aluminum alloy casing 2 can be easily attracted to the magnetic attracting sheet 1.

[0032] The aluminum alloy shell 2 has a cable routing port 11 on one side of its front end, and a groove 12 at the middle of its bottom. One end of the USB-C cable 3 passes through the cable routing port 11 into the interior of the aluminum alloy shell 2. The groove 12 is used to limit the movement of the USB-C cable 3. The vertical USB-C connector 5 is used to connect to the interface of the mobile phone 17. The outer side of the vertical USB-C connector 5 has a connector shell 13. The USB-C cable 3 is designed with a special shape. The plug position uses the vertical USB-C connector 5 to connect to the interface of the mobile phone 17. After bending the USB-C cable 3, it passes through the groove 12 at the bottom of the decoder and is inserted into the interior of the aluminum alloy shell 2 to connect to the circuit board 4. When the decoder is attached to the back of the mobile phone 17, it can press down the cable. The degree of bending of the cable changes when the vertical USB-C connector 5 is plugged in and out. This displacement structure can protect the cable joints from being damaged by excessive bending.

[0033] The magnetic sheet 1 includes a magnetic sheet 14, a leather 15, and a microfiber layer 16. The microfiber layer 16 is disposed on the bottom surface of the magnetic sheet 14, and the leather 15 is disposed on the surface of the magnetic sheet 14. The leather 15 covers the outside of the magnetic sheet 14, which can protect the phone casing and improve hand-holding comfort when the decoder is not in use.

[0034] Example 2

[0035] according to Figure 1 , 2As shown in 3, 4, 5, 6, 7, and 8, this embodiment proposes an audio decoder specifically for mobile phones, including a magnetic stripe 1 and a decoder. The decoder is magnetically adapted to the magnetic stripe 1. The decoder includes a USB-C cable 3, an aluminum alloy shell 2, and a circuit board 4. The circuit board 4 is located inside the aluminum alloy shell 2. One end of the USB-C cable 3 is connected to the circuit board 4, and the other end of the USB-C cable 3 extends out of the aluminum alloy shell 2 and is connected to a vertical USB-C connector 5.

[0036] The circuit board 4 is equipped with a multi-socket assembly, which extends through the aluminum alloy shell 2. The USB-C cable 3 is a flexible and retractable cable. In use, a magnetic sheet 1 is attached to the back of the phone 17 near the bottom. The bottom of the aluminum alloy shell 2 of the decoder is designed with a magnet 10. The aluminum alloy shell 2 can be easily attached to the magnetic sheet 1. Through the multi-socket assembly on the circuit board 4 of the decoder, various external cables can be easily connected. After use, the design is simple and the wiring is neat, which can adapt to different sizes of mobile phones and mobile phones with different protective cases. The aluminum alloy shell 2 exposed at the bottom of the phone 17 is short and thin, with a thickness of about 5mm. The USB-C cable 3 has a maximum extension range of 20mm. The flexible cable displacement structure can protect the cable joints from being damaged by excessive bending.

[0037] The magnetic sheet 1 has a three-layer structure. The bottom layer is made of microfiber material, the middle layer is an iron sheet that can attract magnets, and the surface layer is cowhide 15. The magnetic sheet 1 is a relatively independent component. Multiple sheets with different colors and textures will be included with the product.

[0038] The USB-C cable 3 uses a vertical USB-C connector 5 with a relatively short tail. After the cable is soldered to the connector plug, it is bent 360 degrees, the connector shell 13 is inserted and sealed, and then the other end of the cable is inserted into the aluminum alloy shell 2 and soldered to the circuit board 4. The soldered cable is then snapped into the groove 12 to fix the position.

[0039] The aluminum alloy shell 2 is formed by CNC machining. Two long strip magnets 10 are attached to the bottom. A groove 12 for wiring is reserved in the middle. The circuit board 4 is installed on the front and then fixed with screws. Finally, the top cover 9 is attached.

[0040] Circuit board 4 has both 3.5mm and 4.4mm headphone jacks, a USB socket 6 for connecting charging devices, and five soldering points for a USB-C cable 3. The sockets and larger components on circuit board 4 are kept out of the central area.

[0041] In use, connect the vertical USB-C connector 5 to the USB port of the phone 17. The phone supplies power and transmits digital signals to the circuit board 4 via the USB-C cable 3. A headphone icon or selection screen will appear on the phone 17's display. Use a 3.5mm headphone jack by plugging it into the 3.5mm headphone jack 7, or a 4.4mm headphone jack by plugging it into the 4.4mm headphone jack 8. Use the music app on the phone 17 to play music and transmit it to the headphones for listening. In this state, connecting a power bank or power adapter to the USB socket 6 will charge the phone 17. Charging does not affect the use of headphones for listening to music.

[0042] This audio decoder, designed specifically for mobile phones, uses a magnetic strip 1 attached to the back of the phone 17 near the bottom. The decoder's aluminum alloy casing 2 has a magnet 10 on its bottom; aligning the casing with the magnetic strip 1 allows for easy magnetic attraction. Multiple external cables can be easily connected via the multi-socket assembly on the decoder's circuit board 4. The resulting design is clean and the wiring is neat, adaptable to different phone sizes and cases. The magnetic strip 14 is covered with leather 15, protecting the phone casing and improving hand comfort when the decoder is not in use. The USB-C cable 3 features a unique shape with a vertical USB-C connector 5 for connection to the phone 17. The USB-C cable 3 is bent, loops around the bottom groove 12 of the decoder, and is inserted into the aluminum alloy casing 2 to connect to the circuit board 4. When the decoder is attached to the back of the phone 17, it holds the cable in place. The degree of bending changes with the insertion and removal of the vertical USB-C connector 5; this displacement structure protects the cable joints from excessive bending and damage.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An audio decoder specifically designed for mobile phones, comprising a magnetic strip (1) and a decoder, characterized in that: The decoder is magnetically attached to the magnetic plate (1). The decoder includes a USB-C cable (3), an aluminum alloy shell (2), and a circuit board (4). The circuit board (4) is located inside the aluminum alloy shell (2). One end of the USB-C cable (3) is connected to the circuit board (4), and the other end of the USB-C cable (3) extends out of the aluminum alloy shell (2) and is connected to a vertical USB-C connector (5). The circuit board (4) is provided with a multi-socket assembly, and the multi-socket assembly extends through the aluminum alloy shell (2).

2. The audio decoder for mobile phones according to claim 1, characterized in that: The multi-socket assembly includes a USB socket (6), a 3.5mm headphone jack (7), and a 4.4mm headphone jack (8).

3. The audio decoder for mobile phones according to claim 1, characterized in that: The aluminum alloy shell (2) has an upper cover (9) on top, and magnets (10) are provided on both sides of the bottom of the aluminum alloy shell (2). The magnets (10) are magnetically matched with the magnetic sheet (1).

4. The audio decoder for mobile phones according to claim 3, characterized in that: The magnetic strip (1) is used to attach to the back of the mobile phone (17) near the bottom, and the decoder is magnetically attached to the magnetic strip (1).

5. The audio decoder for mobile phones according to claim 1, characterized in that: The aluminum alloy shell (2) has a cable routing port (11) on one side of its front end, and a groove (12) is provided at the middle position of the bottom of the aluminum alloy shell (2). One end of the USB-C cable (3) passes through the cable routing port (11) to the interior of the aluminum alloy shell (2). The groove (12) is used to limit the USB-C cable (3).

6. The audio decoder for mobile phones according to claim 1, characterized in that: The vertical USB-C connector (5) is used to connect the interface of the mobile phone (17), and the outer side of the vertical USB-C connector (5) is provided with a connector housing (13).

7. An audio decoder for mobile phones according to any one of claims 1-6, characterized in that: The magnetizing sheet (1) includes a magnetizing sheet (14), cowhide (15) and a microfiber layer (16). The microfiber layer (16) is disposed on the bottom surface of the magnetizing sheet (14), and the cowhide (15) is disposed on the surface of the magnetizing sheet (14).

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