A vehicle-mounted audio transmitter
By introducing a flexible mounting structure, adjustable Bluetooth antenna, and efficient heat dissipation design into the vehicle audio transmitter, the issues of installation compatibility, signal stability, and heat dissipation have been resolved, enabling diverse interface adaptation and improving the stability and convenience of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN KAIWEIDI TECHNOLOGY CO LTD
- Filing Date
- 2025-08-28
- Publication Date
- 2026-06-30
AI Technical Summary
Existing vehicle audio transmitters suffer from problems such as a single installation structure, difficulty in adapting to different vehicle models, susceptibility to Bluetooth signal interference, inadequate heat dissipation design, and poor interface compatibility.
The design incorporates a flexible and adaptable installation structure, an adjustable Bluetooth transceiver antenna, and a highly efficient collaborative heat dissipation structure. Combined with a highly compatible interface, this enhances installation stability, Bluetooth signal optimization, and heat dissipation efficiency.
It has achieved stable installation of the vehicle audio transmitter in different vehicle models, optimized Bluetooth signal transmission, enhanced heat dissipation, expanded interface compatibility, and improved the ease of use and stability of the device.
Smart Images

Figure CN224438976U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle audio equipment technology, specifically a vehicle audio transmitter. Background Technology
[0002] In automotive entertainment and audio interaction systems, in-vehicle audio transmitters are used to transmit and transmit audio signals. They can transmit audio signals from external audio sources (such as mobile phones, storage devices, etc.) to the car audio system and can also achieve wireless audio interaction via Bluetooth and other functions. With the development of intelligent and entertainment-oriented vehicles, the requirements for the functional integration, heat dissipation performance, and installation compatibility of in-vehicle audio transmitters are becoming increasingly higher.
[0003] Existing in-vehicle audio transmitters still have the following problems when in use: the installation structure is simple and difficult to adapt to the installation environment such as the center console of different car models, resulting in poor stability after installation; the Bluetooth transceiver antenna angle is fixed, which can easily cause signal dead zones in complex in-vehicle environments, affecting the stability of audio transmission; the heat dissipation design is not perfect, and when working under high load for a long time, heat accumulates inside the device, which can easily lead to audio playback stuttering and shorten the device's lifespan; the audio interface has limited compatibility, and its adaptability to some older audio devices or storage devices of different specifications is poor. Utility Model Content
[0004] (a) Technical problems to be solved.
[0005] To address the shortcomings of existing technologies, this utility model provides a vehicle-mounted audio transmitter with a flexible and adaptable installation structure, an adjustable Bluetooth transceiver antenna, a high-efficiency collaborative heat dissipation structure, and a highly compatible interface. This solves the problems of poor installation stability, susceptibility to Bluetooth signal interference, insufficient heat dissipation, and poor interface compatibility mentioned in the background technology.
[0006] (ii) Technical solution.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a vehicle-mounted audio transmitter, including an audio transmitting mechanism and an auxiliary heat dissipation component.
[0008] The audio transmitting mechanism includes an audio transmitter body, which serves as the core functional carrier, integrating audio processing, transmission, and interactive functions. The bottom of the audio transmitter body has a mounting base with mounting holes for use with mounting bolts and other connecting parts, ensuring stable installation of the vehicle-mounted audio transmitter in the car's center console and other in-vehicle environments. The rear of the audio transmitter body has a Bluetooth transceiver antenna for transmitting and receiving Bluetooth signals, enabling connection and audio transmission with wireless audio devices such as mobile phones. The rear of the audio transmitter body also has an audio connection port and a vehicle infotainment system connection port. The audio connection port is an analog audio port, compatible with various audio cable connectors, for connecting external audio devices such as MP3 players to transmit audio signals. The vehicle infotainment system connection port is compatible with the car's infotainment system connection port, enabling connection with the car's infotainment system. The system connects to the transmitter to complete the transmission and interaction of audio signals. The front of the audio transmitter features an audio control knob, a display screen, and control buttons. The audio control knob has a damped feel, providing a clear tactile feedback when turned for precise control of audio parameters such as volume and sound effects. The display screen is a color LCD that clearly shows the audio status and device connection information. The control buttons are push-buttons for quick function triggering, such as mode switching and Bluetooth pairing. The front of the audio transmitter also features an SD card slot and a USB interface. The SD card slot is compatible with SD cards of various capacities, and the USB interface is compatible with external USB storage devices, allowing connection of external USB flash drives and other devices for easy playback of local audio files. The top of the audio transmitter has heat dissipation fins, with ventilation holes between the two side walls of the heat dissipation fins to increase the heat dissipation area and assist in cooling the audio transmitter.
[0009] The auxiliary heat dissipation component includes an outer cover fixedly installed on the top of the audio transmitter body. The outer cover provides protection and airflow guidance for the heat dissipation structure. The inner top wall of the outer cover is provided with a fan mounting slot, in which three air-guiding fans are installed. The air-guiding fans are arranged in an array to accelerate airflow. Multiple exhaust ports are arranged in an array on both sides of the lower inner side wall of the outer cover. The air-guiding fans guide external cold air to the heat dissipation fins. After the heat flows through the heat dissipation air vents, it is finally discharged from the exhaust ports, enhancing the heat dissipation effect. In conjunction with the heat dissipation structure of the audio transmitter itself, it improves the overall heat dissipation efficiency.
[0010] As a further improvement of this utility model: the mounting base is disposed at both ends of the audio transmitter body, and the mounting holes are symmetrically opened on the mounting base. Through the mounting base at both ends and the symmetrical mounting holes, it can be adapted to the mounting points of the center console of different vehicle models, thereby improving the installation adaptability and stability.
[0011] As a further improvement of this utility model: the Bluetooth transceiver antenna is rotatably mounted on the rear end of the audio transmitter body and is equipped with damping. The angle of the transceiver antenna can be flexibly adjusted according to the Bluetooth signal distribution in the vehicle environment to optimize the signal transmission and reception effect and ensure stable and uninterrupted audio transmission.
[0012] As a further improvement of this utility model, the audio connection port is compatible with common analog audio connector specifications, and the vehicle connection port is designed according to the mainstream automotive vehicle system interface standard, which can be widely adapted to different vehicle models and various external audio devices, thereby improving the interface versatility.
[0013] As a further improvement of this utility model: the heat dissipation fins are multiple pieces arranged in an array, and all the heat dissipation fins are located inside the outer cover, working in conjunction with the air guide fan and exhaust port to form an efficient heat dissipation channel and quickly remove the heat generated by the equipment during operation.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. In this utility model, by symmetrically setting both ends of the mounting base and the layout of the mounting holes, and with the adjustable Bluetooth transceiver antenna, the installation adaptability and stability of the vehicle audio transmitter on the center console of different vehicle models are improved. On the other hand, the Bluetooth signal can be flexibly optimized, solving the problems of installation and signal transmission, and ensuring a stable foundation for audio transmission.
[0016] 2. In this utility model, a highly efficient heat dissipation system is constructed through the coordinated action of the heat dissipation fins on the top of the audio transmitter body, the heat dissipation vent, the outer cover of the auxiliary heat dissipation components, the air vent, and the exhaust port. This significantly improves heat dissipation efficiency and prevents equipment failure due to overheating. At the same time, the highly compatible audio connection port, vehicle connection port, SD card slot, and USB interface are compatible with a variety of devices, expanding the audio source access methods and improving the convenience and versatility of in-vehicle audio use. Attached Figure Description
[0017] Figure 1 This is a perspective view of the entire utility model;
[0018] Figure 2 The audio transmitting mechanism of this utility model is three-dimensional. Figure 1 ;
[0019] Figure 3 The audio transmitting mechanism of this utility model is three-dimensional. Figure 2 ;
[0020] Figure 4 This is a perspective view of the auxiliary heat dissipation component of this utility model.
[0021] In the diagram: 1. Audio transmitter mechanism; 2. Auxiliary heat dissipation component; 11. Audio transmitter body; 12. Mounting base; 13. Mounting hole; 14. Bluetooth transceiver antenna; 15. Audio connection port; 16. Vehicle infotainment connection port; 17. Audio control knob; 18. Display screen; 19. Control button; 110. SD card slot; 111. USB interface; 112. Heat dissipation fins; 113. Heat dissipation vent; 21. Outer cover; 22. Fan mounting slot; 23. Air duct fan; 24. Exhaust port. Detailed Implementation
[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0023] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0025] It should be noted that Bluetooth communication technology, audio signal processing and transmission technology, and the heat exchange principle of heat dissipation structure are existing technologies. Their specific working mechanisms, signal protocols, and heat transfer methods are common knowledge to those skilled in the art and will not be elaborated here.
[0026] Please see Figures 1-4 In this embodiment of the present invention, a vehicle-mounted audio transmitter includes an audio transmitting mechanism 1 and an auxiliary heat dissipation component 2.
[0027] The audio transmitter mechanism 1 includes an audio transmitter body 11, which serves as the core functional carrier, integrating audio processing, transmission, and interaction functions. The bottom of the audio transmitter body 11 has a mounting base 12 with mounting holes 13 for use with mounting bolts and other connecting parts, ensuring the stable installation of the vehicle audio transmitter in the car's center console and other in-vehicle environments. The rear end of the audio transmitter body 11 has a Bluetooth transceiver antenna 14 for transmitting and receiving Bluetooth signals, enabling connection and audio transmission with wireless audio devices such as mobile phones. The rear end of the audio transmitter body 11 also has an audio connection port 15 and a vehicle infotainment system connection port 16. The audio connection port 15 is an analog audio port, compatible with various audio cable connectors, used to connect external audio devices for transmitting audio signals, such as MP3 players. The vehicle infotainment system connection port 16 is compatible with the car's infotainment system connection port, enabling connection with the car's infotainment system and completing audio signal transmission and interaction. The front of the body 11 is equipped with an audio control knob 17, a display screen 18, and control buttons 19. The audio control knob 17 has a damped feel, providing a clear tactile feedback when rotating for precise control of audio parameters such as volume and sound effects. The display screen 18 is a color LCD screen that clearly displays audio status (such as playback mode and volume value) and device connection information (such as Bluetooth connection status and external device identification status). The control buttons 19 are push-buttons for quick function triggering, such as mode switching and Bluetooth pairing. The front of the audio transmitter body 11 also has an SD card slot 110 and a USB interface 111. The SD card slot 110 is compatible with SD cards of various capacities, and the USB interface 111 is compatible with external USB storage devices, allowing connection of external USB flash drives and other devices for easy reading and playback of local audio files. The top of the audio transmitter body 11 has heat dissipation fins 112, and heat dissipation vents 113 are located between the two side walls of the heat dissipation fins 112 to increase the heat dissipation area and assist in heat dissipation of the audio transmitter body 11.
[0028] The auxiliary heat dissipation component 2 includes an outer cover 21 fixedly installed on the top of the audio transmitter body 11. The outer cover 21 provides protection and airflow guidance for the heat dissipation structure. The inner top wall of the outer cover 21 is provided with a fan mounting slot 22. Three air guide fans 23 are installed in the fan mounting slot 22 in an array to accelerate airflow. Multiple exhaust ports 24 are arranged in an array on both sides of the inner side wall of the outer cover 21. The air guide fans 23 guide the external cold air to the heat dissipation fins 112. After the heat flows through the heat dissipation air guide port 113, it is finally discharged from the exhaust port 24, which enhances the heat dissipation effect and works in conjunction with the heat dissipation structure of the audio transmitter 1 to improve the overall heat dissipation efficiency.
[0029] Mounting base 12 is located at both ends of audio transmitter body 11, and mounting holes 13 are symmetrically opened on mounting base 12. Through the mounting base 12 at both ends and the symmetrical mounting holes 13, it can be adapted to the mounting points of the center console of different models, improving installation adaptability and stability.
[0030] The Bluetooth transceiver antenna 14 is rotatably mounted at the rear end of the audio transmitter body 11 and is equipped with damping. The angle of the Bluetooth transceiver antenna 14 can be flexibly adjusted according to the Bluetooth signal distribution in the vehicle environment to optimize the signal transmission and reception effect and ensure stable and uninterrupted audio transmission.
[0031] Audio connection port 15 is compatible with common analog audio connector specifications, while vehicle infotainment connection port 16 is designed according to mainstream automotive infotainment system interface standards, widely adapting to different vehicle models and various external audio devices, thus improving interface versatility.
[0032] The heat dissipation fins 112 are multiple and arranged in an array. All the heat dissipation fins 112 are located inside the outer cover 21, and together with the air guide fan 23 and the exhaust port 24, they form an efficient heat dissipation channel to quickly remove the heat generated by the equipment during operation.
[0033] The working principle of this utility model is as follows: During installation, the vehicle audio transmitter is fixed to a suitable position on the car's center console using the mounting holes 13 of the mounting base 12 at the bottom of the audio transmitter body 11 and the mounting bolts. The Bluetooth transceiver antenna 14 is rotated to adjust the angle and optimize signal transmission and reception based on the Bluetooth signal conditions in the vehicle environment. In use, external audio devices such as mobile phones and MP3 players can be connected via the audio connection port 15, or the vehicle system can be connected via the vehicle connection port 16. Alternatively, an SD card storing audio files can be inserted into the SD card slot 110, and a USB flash drive can be inserted into the USB port. The device has an audio control knob 17 for adjusting volume, sound effects, and other parameters. The display screen 18 shows the device's working status and connection information. The control button 19 enables quick operations such as mode switching and Bluetooth pairing. The heat generated by the device is initially dissipated by the heat dissipation fins 112 on the top of the audio transmitter body 11. The air guide fan 23 of the auxiliary heat dissipation component 2 introduces external cold air into the outer cover 21 and blows it onto the heat dissipation fins 112. The heat flows with the air through the heat dissipation air guide 113 and is discharged from the exhaust port 24 of the outer cover 21, ensuring that the device operates stably at a suitable temperature.
[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A vehicle-mounted audio transmitter, comprising an audio transmitting mechanism (1) and an auxiliary heat dissipation component (2); characterized in that The audio transmitting mechanism (1) includes an audio transmitting body (11), a mounting base (12) at the bottom of the audio transmitting body (11), and a mounting hole (13) on the mounting base (12); a Bluetooth transceiver antenna (14) is provided at the rear end of the audio transmitting body (11); an audio connection port (15) and a vehicle connection port (16) are also provided at the rear end of the audio transmitting body (11); an audio control knob (17), a display screen (18), and a control button (19) are provided at the front end of the audio transmitting body (11); an SD card slot (110) and a USB interface (111) are also provided at the front end of the audio transmitting body (11); a heat dissipation fin (112) is provided at the top of the audio transmitting body (11), and a heat dissipation vent (113) is provided between the two side walls of the heat dissipation fin (112); The auxiliary heat dissipation component (2) includes an outer cover (21) fixedly installed on the top of the audio transmitter body (11). The inner top wall of the outer cover (21) is provided with a fan mounting groove (22). An air guide fan (23) is installed in the fan mounting groove (22). Multiple exhaust ports (24) are arranged in an array on both sides of the inner side wall of the outer cover (21).
2. The vehicle-mounted audio transmitter according to claim 1, characterized in that: The mounting base (12) is located at both ends of the audio transmitter body (11), and the mounting holes (13) are symmetrically opened on the mounting base (12).
3. The vehicle-mounted audio transmitter according to claim 1, characterized in that: The Bluetooth transceiver antenna (14) is rotatably mounted on the rear end of the audio transmitter body (11) and is equipped with damping.
4. A vehicle-mounted audio transmitter according to claim 1, characterized in that: The audio connection port (15) is an analog audio port, and the vehicle connection port (16) is adapted to the vehicle infotainment system connection port.
5. A vehicle-mounted audio transmitter according to claim 1, characterized in that: The audio control knob (17) has a damping feel, the display screen (18) is a color LCD screen, and the control button (19) is a push button.
6. A vehicle-mounted audio transmitter according to claim 1, characterized in that: The SD card slot (110) is compatible with SD cards of various capacities, and the USB interface (111) is compatible with external USB storage devices.
7. A vehicle-mounted audio transmitter according to claim 1, characterized in that: The air-guiding fan (23) consists of three units arranged in an array, and the heat dissipation fins (112) consist of multiple units arranged in an array, with all of the heat dissipation fins (112) located inside the outer cover (21).