Vehicle-mounted multimedia converter

Abstract

The utility model discloses a vehicle-mounted multimedia converter, which comprises a main body, the main body comprises a metal shell, a main control board is arranged in the metal shell, the main control board is connected with a wireless transmission module, the wireless transmission module comprises an antenna unit, the antenna unit is electrically connected with the main control board, and one end of the metal shell is provided with an electrical plug electrically connected with the main control board; the wireless transmission module is used for wirelessly communicating with external intelligent terminal equipment so as to transmit data; the electric plug is used for being matched with an electric socket of a vehicle machine system of a vehicle in an inserted mode so as to transmit electric energy and data. According to the vehicle-mounted multimedia converter, wireless data transmission between the intelligent terminal equipment and a vehicle-mounted machine system is achieved through the wireless transmission module, a data transmission line is not needed, the problem that a wire rod is randomly placed in a vehicle is avoided, the attractiveness in the vehicle is improved, interference to operation of a driver is effectively reduced, and the driving risk is reduced; and the metal shell is adopted, so that the firmness of the equipment is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of converter technology, and in particular to in-vehicle multimedia converters. Background Technology

[0002] With the development of automotive intelligence, the demand for connectivity between older in-vehicle infotainment systems and smart terminal devices is increasing. Currently, older in-vehicle infotainment systems typically require a data transmission cable to connect to smart terminal devices (such as mobile phones and tablets), and use CarPlay / Android Auto / HiCar / Carlife / Carlink, etc., to access applications on these devices.

[0003] One end of the data transmission cable connects to the vehicle's infotainment system, and the other end connects to a smart terminal device. However, data transmission cables are usually quite long and can easily be placed haphazardly inside the vehicle, affecting not only aesthetics but also potentially hindering the driver's operation and compromising driving safety.

[0004] Furthermore, connecting and disconnecting the data transmission cable is cumbersome, especially while driving, as the driver needs to be distracted to operate the cable, which undoubtedly increases the risk of accidents. Therefore, improving the connection method between older in-vehicle infotainment systems and smart terminal devices to address these challenges has become a pressing technical problem for those skilled in the art. Utility Model Content

[0005] The technical problem solved by this utility model is to provide an in-vehicle multimedia converter.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: an in-vehicle multimedia converter, including a main body, the main body including a metal shell, a main control board disposed inside the metal shell, the main control board being connected to a wireless transmission module, the wireless transmission module including an antenna unit, the antenna unit being electrically connected to the main control board, and an electrical plug electrically connected to the main control board at one end of the metal shell; the wireless transmission module is used for wireless communication with external smart terminal devices to transmit data; the electrical plug is used for plugging into the electrical socket of the vehicle's in-vehicle infotainment system to transmit power and data.

[0007] In one embodiment, the antenna element is a circuit formed by etching the surface copper foil layer on the main control board.

[0008] In one embodiment, the antenna unit includes a substrate layer and circuitry disposed on the substrate layer.

[0009] In one embodiment, the metal housing is provided with a coupling slot that couples with the antenna unit.

[0010] In one embodiment, the distance between the antenna element and the coupling slot is 1-2 mm.

[0011] In one embodiment, at least a portion of the metal casing is a radiator of the antenna unit, and the main control board is provided with a conductive element that is connected to the radiator.

[0012] In one embodiment, the conductive element is a conductive probe or a cable.

[0013] In one embodiment, the metal casing has an exposed window, and the antenna unit is located at the exposed window.

[0014] In one embodiment, the main control board is provided with an indicator light, and the metal casing is provided with a light-transmitting opening for the light from the indicator light to shine out.

[0015] In one embodiment, a protective cover is also included, which is detachably connected to the body and is used to protect the electrical plug.

[0016] The beneficial effects of this utility model are as follows: The in-vehicle multimedia converter of this utility model, by setting up a wireless transmission module, realizes wireless data transmission between the smart terminal device and the vehicle system, eliminating the need for data transmission cables. This avoids the problem of haphazardly placing cables inside the vehicle, not only improving the aesthetics of the interior but also effectively reducing interference with driver operation and lowering driving risks. The electrical plug, in conjunction with the electrical socket of the vehicle system, can stably transmit power and data, ensuring the normal operation of the device and reliable data exchange. Furthermore, the in-vehicle multimedia converter uses a metal casing, effectively improving the device's robustness, reducing the risk of damage, and extending the lifespan of the in-vehicle multimedia converter. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the in-vehicle multimedia converter in Embodiment 1;

[0019] Figure 2 This is a schematic diagram of a portion of the structure of the in-vehicle multimedia converter in Embodiment 1;

[0020] Figure 3 This is a schematic diagram of the structure of the light-transmitting sealing plug in the in-vehicle multimedia converter of Embodiment 1;

[0021] Figure 4 This is a cross-sectional view of the in-vehicle multimedia converter in Embodiment 2;

[0022] Figure 5 This is a cross-sectional view of the in-vehicle multimedia converter in Embodiment 3;

[0023] Figure 6 This is a cross-sectional view of the in-vehicle multimedia converter in Embodiment 4.

[0024] Explanation of icon numbers:

[0025] 1. Main body;

[0026] 2. Metal casing; 21. Coupling gap; 22. Exposed window;

[0027] 3. Main control board;

[0028] 4. Antenna unit;

[0029] 5. Electrical plug;

[0030] 6. Protective cover;

[0031] 7. Transparent sealing plug; 71. Contact step; 72. Flexible arm; 73. Locking block; 74. Locking position;

[0032] 8. Conductors. Detailed Implementation

[0033] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] It should be noted that if the embodiments of this utility model involve directional indicators such as up, down, left, right, front, back, etc., the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicators will also change accordingly.

[0036] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0037] Furthermore, if the meaning of "and / or" appears throughout the text, it refers to three parallel solutions. For example, "and / or" includes solution 1, solution 2, and solution 3, which simultaneously satisfy the above conditions. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0038] In this application, unless otherwise expressly 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 part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0039] Example 1

[0040] Please refer to Figures 1 to 3 One embodiment of this utility model is: an in-vehicle multimedia converter, used to connect to a vehicle's infotainment system via a plug-in method. The in-vehicle multimedia converter includes a main body 1, the main body 1 including a metal shell 2, a main control board 3 housed inside the metal shell 2, the main control board 3 connected to a wireless transmission module, the wireless transmission module including an antenna unit 4, the antenna unit 4 electrically connected to the main control board 3, the wireless transmission module may be a Bluetooth / Wi-Fi module, in which case the antenna unit 4 is a WiFi / BT antenna unit; one end of the metal shell 2 is provided with an electrical plug 5 electrically connected to the main control board 3, the electrical plug 5 may be a USB 2.0 plug, etc.; the wireless transmission module is used for wireless communication with external smart terminal devices to transmit data, the external smart terminal devices including but not limited to smartphones; the electrical plug 5 is used to connect and cooperate with the electrical socket of the vehicle's infotainment system to transmit power and data.

[0041] Optionally, the antenna unit 4 is a circuit formed by etching the surface copper foil layer on the main control board 3, in which case the antenna unit 4 is an onboard antenna; or, the antenna unit 4 includes a substrate layer and circuits disposed on the substrate layer. The substrate layer may be a polyimide (PI) material layer or a polyester (PET) material layer. In specific applications, the antenna unit 4 may be a patch antenna.

[0042] To ensure good signal transmission and reception performance of antenna unit 4, the distance between antenna unit 4 and coupling gap 21 is preferably 1-2mm.

[0043] The in-vehicle multimedia converter also includes a protective cover 6, which is detachably connected to the main body 1. The protective cover 6 is used to protect the electrical plug 5, and preferably the protective cover 6 is plugged into and detached from the main body 1.

[0044] Optionally, the main control board 3 is provided with an indicator light, and the metal housing 2 is provided with a light-transmitting port for the light of the indicator light to shine out. The indicator light is used to indicate the power-on status and / or signal transmission and reception status of the vehicle multimedia converter.

[0045] A light-transmitting sealing plug 7 is also provided at the light-transmitting opening. The light-transmitting sealing plug 7 is used to seal the light-transmitting opening and allows the light emitted by the indicator light to pass through the main body 1. In this embodiment, the light-transmitting sealing plug 7 is generally cylindrical. The end of the light-transmitting sealing plug 7 is provided with an abutment step 71 and an elastic arm 72. The elastic arm 72 is provided with a locking block 73. A locking position 74 is formed between the locking block 73 and the abutment step 71. The main body 1 is provided with a locking part that cooperates with the locking position 74.

[0046] In one or more embodiments, the main control board 3 is equipped with a CPU module, a power supply chip, and a wireless communication chip. Optionally, the CPU module is an Allwinner V851S chip, the power supply chip is a SY8088IAAC chip, and the wireless communication chip is a Realtek 8733BS chip. This in-vehicle multimedia converter uses a USB 2.0 plug to connect to the USB 2.0 socket of the vehicle system, thereby communicating with the vehicle system and obtaining power from the vehicle system. The power is stepped down by three DC-DC power chips and supplied to the CPU module. After the main control board is powered on and working normally, it first connects to the Bluetooth module of an iOS or Android smartphone through the Bluetooth module of the wireless communication chip. Through software interaction, the smartphone connects to the corresponding WIFI name, and then connects to the CarPlay or Android Auto functions on the smartphone. The power is transmitted to the central control screen of the vehicle system through the electrical plug 5, realizing the wired CarPlay / Android Auto to wireless CarPlay / Android Auto function.

[0047] Example 2

[0048] Please combine Figure 4 Embodiment 2 of this utility model is a parallel technical solution to Embodiment 1, but differs from Embodiment 1 in that: the metal casing 2 is provided with a coupling gap 21 that couples with the antenna unit 4. The coupling effect between the antenna and the metal casing 2 is used to enhance signal penetration, and the metal casing 2 can serve as part of a wireless transmission module, thus aiding signal propagation.

[0049] Example 3

[0050] Please combine Figure 5 Embodiment 3 of this utility model is a parallel technical solution to Embodiment 1, but differs from Embodiment 1 in that: at least a portion of the metal casing 2 is a radiator of the antenna unit 4, and the main control board 3 is provided with a conductive element 8 that communicates with the radiator. The conductive element 8 is a conductive probe or cable. The metal casing 2 can serve as part of a wireless transmission module, facilitating signal propagation.

[0051] Example 4

[0052] Please combine Figure 6 Embodiment 4 of this utility model is a parallel technical solution to Embodiment 1, but differs in that: the metal casing 2 has an exposed window 22, and the antenna unit 4 is located at the exposed window 22. This design can effectively reduce the signal shielding of the wireless transmission module by the metal casing 2, which is beneficial to ensuring signal transmission performance. Optionally, the exposed window 22 is filled with resin, which can fix and protect the antenna unit 4 located within the exposed window 22.

[0053] In specific implementation, the antenna unit 4 can be a metal structural component, with a portion of the metal structural component located in the exposed window 22; or, the antenna unit 4 can be a cable, with one end of the cable away from the main control board 3 located in the exposed window 22, and the core wire of the cable directly transmitting and receiving signals.

[0054] The above are merely optional embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A vehicle-mounted multimedia converter, characterized in that: The device includes a main body, which includes a metal casing. A main control board is housed inside the metal casing. The main control board is connected to a wireless transmission module. The wireless transmission module includes an antenna unit, which is electrically connected to the main control board. One end of the metal casing is provided with an electrical plug that is electrically connected to the main control board. The wireless transmission module is used for wireless communication with external smart terminal devices to transmit data; The electrical plug is used to connect and mate with the electrical socket of the vehicle's infotainment system to transmit electrical energy and data.

2. The in-vehicle multimedia converter according to claim 1, characterized in that: The antenna unit is a circuit formed by etching the surface copper foil layer on the main control board.

3. The in-vehicle multimedia converter according to claim 1, characterized in that: The antenna unit includes a substrate layer and circuitry disposed on the substrate layer.

4. The in-vehicle multimedia converter according to claim 2 or 3, characterized in that: The metal casing is provided with a coupling slot that couples with the antenna unit.

5. The in-vehicle multimedia converter according to claim 4, characterized in that: The distance between the antenna element and the coupling gap is 1-2 mm.

6. The in-vehicle multimedia converter according to claim 1, characterized in that: At least a portion of the metal casing is a radiator of the antenna unit, and the main control board is provided with a conductive element that is connected to the radiator.

7. The in-vehicle multimedia converter according to claim 6, characterized in that: The conductive element is a conductive probe or a cable.

8. The in-vehicle multimedia converter according to claim 1, characterized in that: The metal casing has an exposed window, and the antenna unit is located at the exposed window.

9. The in-vehicle multimedia converter according to claim 1, characterized in that: The main control board is equipped with indicator lights, and the metal casing is equipped with a light-transmitting opening for the light from the indicator lights to shine out.

10. The in-vehicle multimedia converter according to claim 1, characterized in that: It also includes a protective cover, which is detachably connected to the main body and is used to protect the electrical plug.

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