Rapidly cooled vehicle-mounted digital power amplifier
By integrating a water pump-driven circulating water cooling system and a temperature sensor-controlled cooling strategy into the vehicle amplifier, the self-protection problem caused by amplifier overheating is solved, ensuring the stability and sound quality of the audio system, and achieving rapid cooling and long-term operation of the amplifier.
Patent Information
- Application Number
- CN202422794082.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-15
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-15
AI Technical Summary
When a car amplifier's self-protection mechanism is activated in a high-temperature environment, it affects sound quality and causes a decline in the performance of the audio system. Existing technology cannot effectively solve the problem of amplifier overheating.
The system employs a water pump-driven circulating water cooling system, which combines a cooling block, a cooling semiconductor, and a cooling fan. The system absorbs and reduces the heat from the power amplifier in a timely manner through water circulation, and uses a temperature sensor to adjust the cooling level in real time to ensure stable operation of the power amplifier.
It achieves stable operation of the car amplifier in high-temperature environments, avoids the activation of the self-protection mechanism, ensures long-term efficient operation of the audio system, and improves sound quality and volume.
Smart Images

Figure CN223540655U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive audio equipment cooling technology, and in particular to a fast-cooling in-vehicle digital power amplifier. Background Technology
[0002] A car audio power amplifier, also known as a car power amplifier, is an important component of a modern car audio system. Its main function is to amplify the weak electrical signal from the source to drive the speakers and produce sound, thereby achieving the desired car audio effect. Car power amplifiers can be divided into traditional analog amplifiers and the increasingly popular digital amplifiers, based on their working principle. Analog amplifiers dominate the market due to their sweet sound quality, wide frequency range, and mature technology, while digital amplifiers are gradually gaining popularity due to their high efficiency, small size, and high power.
[0003] Car amplifiers generate heat during use because the electrical energy consumed by their internal components during high-intensity operation is converted into heat. Normally, car amplifiers operate stably at around 50 degrees Celsius, but in some cases, the amplifier temperature may rise abnormally. The primary cause is likely improper amplifier design or incorrect wiring connections. Secondly, environmental factors such as direct sunlight in summer or poor ventilation in the amplifier's installation location can also hinder heat dissipation and cause temperature increases. Furthermore, prolonged continuous high-load operation or improper use are also key factors leading to amplifier overheating.
[0004] To ensure the safe operation of the amplifier and prevent component damage due to overheating, car amplifiers are typically equipped with a self-protection mechanism. When an abnormally high temperature is detected, the self-protection mechanism activates, protecting the amplifier from further damage by stopping output or reducing power. However, while this self-protection mechanism protects the amplifier, it can negatively impact the playback quality of the car audio system. Activation of the self-protection mechanism means the amplifier cannot operate at maximum power, which may lead to a decrease in sound quality, reduced volume, and in some cases, insufficient driving force to produce clear and powerful sound from the speakers. Utility Model Content
[0005] In order to overcome the drawback of car amplifiers affecting sound quality due to temperature self-protection, this utility model provides a car digital amplifier with rapid cooling to ensure long-term use.
[0006] A fast-cooling vehicle digital amplifier includes an amplifier, a mounting frame, mounting ears, water pipes, a water box, a water pump, a sealing cover, and a cooling assembly. The amplifier is installed inside the mounting frame, which is connected to mounting ears. The mounting frame is installed in the vehicle via the mounting ears. Water pipes are wound around the mounting frame. The water box is connected to the rear end of the mounting frame. A water pump is installed at the bottom of the water box. One end of the water pipe is connected to the water pump, and the other end is connected to the top of the water box. A sealing cover is attached to the water box. A cooling assembly for auxiliary cooling is provided inside the water box.
[0007] Furthermore, it is particularly preferred that the cooling assembly includes a cooling block, a cooling semiconductor, a cooling fan, and a controller. The cooling block is connected inside the water tank, and the cooling fan is connected to the cooling block. A cooling semiconductor is installed between the cooling block and the cooling fan. A controller is installed at the rear end of the mounting frame, and the controller is used to control the start and stop of the cooling fan.
[0008] In addition, it is particularly preferred that a protective housing is included, the mounting frame is covered by the protective housing, and the protective housing covers all the water pipes.
[0009] In addition, it is particularly preferred that a temperature sensor is also included, which is installed inside the mounting frame and is wired to the controller.
[0010] In addition, it is particularly preferred that an observation window is also included, which is provided on the water tank.
[0011] In addition, it is particularly preferred that the device also includes a pull cord, one end of which is connected to the sealing cap and the other end of which is connected to the water tank.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] By driving water circulation through a water pump, the heat generated by the vehicle amplifier can be absorbed and carried away in a timely manner. Through the cooperation of a cooling block, a cooling semiconductor and a cooling fan, the water temperature is further reduced, solving the problem of the vehicle amplifier's self-protection due to overheating and ensuring that the vehicle amplifier can operate stably for a long time. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0015] Figure 2 This is a three-dimensional structural diagram of the thermal insulation cotton and fixing ear of this utility model.
[0016] Figure 3 This is a three-dimensional structural diagram of the water pump and water box of this utility model.
[0017] Figure 4 This is a three-dimensional structural diagram of the cooling block and cooling pipe of this utility model.
[0018] Figure 5 This is a three-dimensional structural diagram of the cooling semiconductor and cooling fan of this utility model.
[0019] Figure 6 This is a three-dimensional structural diagram of the temperature sensor and stable display of this utility model.
[0020] The above-mentioned attached drawings include the following reference numerals: 1. vehicle amplifier, 2. mounting frame, 201. fixing ear, 3. water pipe, 4. water box, 5. water pump, 6. sealing cover, 7. cooling block, 8. cooling semiconductor, 9. cooling fan, 10. controller, 11. protective shell, 12. temperature sensor, 13. observation window, 14. pull rope. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.
[0022] Example: A fast-cooling in-vehicle digital power amplifier, such as Figures 1-6 As shown, the system includes a vehicle amplifier 1, a mounting frame 2, mounting ears 201, a water pipe 3, a water box 4, a water pump 5, a sealing cover 6, and a cooling assembly. The vehicle amplifier 1 is installed inside the mounting frame 2. Two mounting ears 201 are connected to each of the front and rear ends of the mounting frame 2. The mounting frame 2 is installed in the car through the mounting ears 201. The water pipe 3 is wound around the mounting frame 2 and covers the upper and lower sides of the mounting frame 2 in an "S" shape. The water box 4 is connected to the rear end of the mounting frame 2. The water pump 5 is installed at the bottom of the water box 4. One end of the water pipe 3 is connected to the water pump 5, and the other end is connected to the top of the water box 4. The water pump 5 pumps water upward. The sealing cover 6 is connected to the water box 4. The cooling assembly for auxiliary cooling is installed inside the water box 4.
[0023] like Figure 2 , Figure 4 and Figure 5 As shown, the cooling assembly includes a cooling block 7, a cooling semiconductor 8, a cooling fan 9, and a controller 10. The cooling block 7 is connected inside the water box 4, and the end of the cooling block 7 replaces the rear end face of the water box 4. The cooling fan 9 is connected to the cooling block 7, and the cooling semiconductor 8 is installed between the cooling block 7 and the cooling fan 9. The controller 10 is installed at the rear end of the mounting frame 2. The controller 10 is used to control the start and stop of the cooling fan 9 and adjust its working power.
[0024] The mounting frame 2 is fixed inside the vehicle by the fixing ear 201, and the vehicle amplifier 1 is installed. When the vehicle amplifier 1 is working, it continuously emits heat. At this time, the water pump 5 will also start simultaneously, so that the water in the water pipe 3 will flow continuously. The water pipe 3 surrounding the mounting frame 2 can absorb the heat emitted by the vehicle amplifier 1 in time to maintain the overall temperature of the vehicle amplifier 1. At the same time, the controller 10 turns on the cooling fan 9 and the cooling semiconductor 8. The water flow achieves heat transfer when passing through the cooling block 7. The cooling semiconductor 8 can cool the cooling block 7, thereby cooling the water flow passing through the cooling block 7 to ensure the water temperature, so that the vehicle amplifier 1 can work for a long time. The cooling fan 9 dissipates heat for the cooling semiconductor 8. After long-term operation, the water flow will have a certain amount of consumption. Therefore, after a period of use, the sealing cover 6 can be opened and water can be added to the water box 4. When the vehicle amplifier 1 stops working, the water pump 5 and the cooling fan 9 also stop working. The water in the water pipe 3 will still dissipate heat to the outside, assisting the vehicle amplifier 1 to cool down quickly.
[0025] like Figure 2 and Figure 4 As shown, it also includes a protective shell 11, which is wrapped around the mounting frame 2 and covers all the water pipes 3.
[0026] The protective casing 11 can protect the water pipe 3 and prevent it from breaking under pressure, especially during the transportation of the entire equipment, ensuring the integrity of the equipment's functions.
[0027] like Figure 6 As shown, it also includes a temperature sensor 12, which is installed inside the mounting frame 2 and is wired to the controller 10.
[0028] The temperature of the car amplifier 1 only has a significant impact during prolonged use. To save energy, different cooling levels are set through the controller 10, while the temperature sensor 12 can monitor the surface temperature of the car amplifier 1 in real time. When the detected temperature reaches the threshold, the temperature sensor 12 sends a signal to the controller 10. After receiving the signal, the controller 10 adjusts the cooling level and increases the power used by the water pump 5 and the cooling semiconductor 8 to enhance the cooling effect and quickly absorb the temperature of the car amplifier 1. Different thresholds correspond to different cooling levels.
[0029] like Figure 6 As shown, it also includes an observation window 13, which is provided on the water box 4.
[0030] The observation window 13 on the water tank 4 allows users to visually check the water quality and flow, thus enabling them to replace the water source in a timely manner.
[0031] like Figure 3As shown, it also includes a pull rope 14, one end of which is connected to the sealing cover 6 and the other end is connected to the water box 4.
[0032] When the sealing cap 6 is opened, the pull rope 14 can be suspended and connected to the water box 4. After adding water, the sealing cap 6 can be taken directly, reducing the search time and preventing loss.
[0033] When the car amplifier 1 is working, it generates a large amount of heat. At this time, the water pump 5 starts, driving the water in the water pipe 3 to circulate. The water pipe 3 absorbs and carries away the heat released by the car amplifier 1. At the same time, the cooling components installed in the water box 4 start to operate. The cooling block 7 is in direct contact with the water flow, effectively transferring the heat released by the car amplifier 1 to the water flow. The controller 10 automatically adjusts the cooling intensity of the cooling semiconductor 8 according to the preset program or the real-time temperature signal provided by the temperature sensor 12, thereby further reducing the temperature of the cooling block 7 and the water flowing over its surface. The cooling fan 9 can dissipate the heat generated by the cooling semiconductor 8 when it is working. Meanwhile, the entire water pipe 3 system is wrapped in a protective shell 11 to prevent accidental crushing damage. The observation window 13 on the water box 4 makes it easy to check the water quality and water flow, so as to replace the water source in time. The pull rope 14 is designed to hang the sealing cap 6 when adding water, which is convenient and prevents loss.
[0034] It should be understood that this embodiment is for illustrative purposes only and is not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.
Claims
1. A fast-cooling in-vehicle digital power amplifier, characterized in that it includes... have: The vehicle amplifier (1) and the mounting frame (2) are installed inside the mounting frame (2). The mounting frame (2) is connected to a fixing ear (201). The mounting frame (2) is installed in the car through the fixing ear (201). A water pipe (3) is wound around the mounting frame (2). A water box (4) is connected to the rear end of the mounting frame (2). A water pump (5) is installed at the bottom of the water box (4). One end of the water pipe (3) is connected to the water pump (5), and the other end is connected to the top of the water box (4). A sealing cover (6) is connected to the water box (4). The water box (4) is equipped with a cooling component for auxiliary cooling.
2. A rapidly cooling vehicle digital power amplifier according to claim 1, characterized in that, The cooling components include: A cooling block (7) is connected to the water box (4), a cooling fan (9) is connected to the cooling block (7), and a cooling semiconductor (8) is installed between the cooling block (7) and the cooling fan (9). A controller (10) is installed at the rear end of the mounting frame (2), and the controller (10) is used to control the start and stop of the cooling fan (9).
3. A rapidly cooling vehicle digital power amplifier according to claim 2, characterized in that it also... include: The protective shell (11) is wrapped around the mounting frame (2), and the protective shell (11) covers all the water pipes (3).
4. A rapidly cooling vehicle digital power amplifier according to claim 3, characterized in that it also... include: Temperature sensor (12) is installed inside the mounting frame (2) and is wired to the controller (10).
5. A rapidly cooling vehicle digital power amplifier according to claim 4, characterized in that it also... include: The observation window (13) is provided on the water box (4).
6. A rapidly cooling vehicle digital power amplifier according to claim 5, characterized in that it further... include: A pull rope (14) is provided, with one end connected to the sealing cap (6) and the other end connected to the water box (4).