CN111706631A - An automatic control heat dissipation and high temperature alarm device for automobile brake drum shoes - Google Patents

Abstract

The automatic control heat dissipation and high temperature alarm device of the automobile brake drum shoe of the present invention includes a battery, a temperature sensor, a temperature controller, a blower, and a sound and light alarm device. There are sensor positioning holes on the inner side wall of the sheet, and the temperature sensors are respectively arranged in the sensor positioning holes. The temperature sensors are connected with the temperature controller through the sensor circuit. On the surface, the blower is connected with the temperature controller through the blower circuit, and the temperature controller controls the blower to blow towards the direction of the brake shoe when the blower is working, and the sound and light alarm device is connected with the temperature controller through the alarm circuit. By adopting the invention, the automatic control heat dissipation and high temperature alarm of the automobile brake drum can be realized, and the purpose of actively preventing traffic accidents can be achieved.

Description

An automatic control heat dissipation and high temperature alarm device for automobile brake drum shoes

technical field

The invention relates to the technical field of automobile braking, in particular to an automatic heat dissipation and high temperature alarm device for automobile brake drum shoes.

Background technique

my country is a mountainous country, and about 75% of the country's land area is mountainous or hilly terrain, so long-distance vehicles often require long-term braking. In addition, due to a variety of subjective and objective factors, vehicle overloading and overloading are very common. According to the statistics of traffic accidents, it is found that the brake failure factor causes the most accidents. According to the statistics of relevant departments, it accounts for 42% of the total number of accidents, and most It is due to the thermal recession of the braking system, and most of the vehicles involved in the accident are large and medium-sized vehicles equipped with drum brakes.

As the braking device of the automobile, the automobile brake drum directly affects the safety of the vehicle. Due to frequent braking or continuous braking in mountainous areas for a long time, large and medium-sized vehicles will cause the brake drums and brake pads to generate high temperatures. When the high temperature heat accumulated in the brake drum exceeds a certain limit, it will inevitably lead to many brake related failures: such as rapid wear of the brake pads and brake drums, and even heat generation due to the high temperature of the brake drum shoes. A traffic accident in which the brake fails due to the fading effect.

In the case of high temperature, drum brakes have a great impact on the braking efficiency of the car and even the safety performance of the car. At present, there are several solutions to solve the heat dissipation problem at home and abroad: 1. Install a water tank on the vehicle, and use water to brake Drum heat dissipation; 2. Equipped with a car deceleration device, such as a car retarder, using exhaust brakes, etc.; 3. When the vehicle needs continuous braking, the driver should use the low-speed gear as much as possible to drive slowly. Among the above three schemes, the first scheme has the disadvantage of poor reliability of the water-cooled heat dissipation method; the second scheme applies high-tech technology, and the cost is high. At present, it can only be used on high-end trucks, and it is difficult to popularize in a short period of time; The third scheme is the most primitive passive treatment method. Although it is more effective, it requires higher driving experience and technical requirements of the driver in practice. In addition, the current phenomenon of vehicle overloading is common. This scheme is only a temporary solution, not the root cause. Traffic accidents also occur from time to time and cannot be completely avoided. Therefore, designing a better scheme to prevent such traffic accidents will surely bring good news to the society.

SUMMARY OF THE INVENTION

The purpose of the present invention is to aim at the defects existing in the above-mentioned prior art, to provide a kind of automatic control heat dissipation and high temperature alarm device of automobile brake drum shoe, realize automatic control heat dissipation and high temperature alarm of automobile brake drum, and achieve the purpose of actively preventing traffic accidents .

The technical scheme adopted by the present invention to achieve the above purpose is: an automatic control heat dissipation and high temperature alarm device for an automobile brake drum shoe, which includes a battery, a temperature sensor, a temperature controller, a blower, and a sound and light alarm device. There are sensor positioning holes on the inner side walls of the brake drum shoes of the two rear wheels of the truck. The temperature sensors are respectively arranged in the sensor positioning holes. The temperature sensors are connected to the temperature controller through the sensor circuit. The blowers are installed on the two rear wheels of the truck. The inner surface of the brake base plate on the inner side of the brake shoe, the blower is connected to the temperature controller through the blower circuit, the temperature controller controls the blower to blow towards the direction of the brake shoe when the blower is working, and the sound and light alarm device communicates with the temperature through the alarm circuit. Controller connection.

A further technical solution of the present invention is that a blower installation position is provided in the middle of the inner surface of the brake base plate, and the blower is connected to the blower installation position through screws II.

The further technical scheme of the present invention is: the temperature controller receives the temperature signal of the temperature sensor and converts the temperature signal into a voltage signal, the temperature controller processes and judges the voltage signal, and the temperature controller outputs a control signal to the relay switch of the blower, and then controls The blower works.

The further technical scheme of the present invention is: the sound and light alarm device is arranged in the cab of the truck, when the temperature sensor detects that the temperature value of the brake drum shoe reaches the pre-warning temperature value set by the temperature controller, the temperature controller automatically controls the sound and light alarm device The relay switch makes the sound and light alarm device work.

The automatic control heat dissipation and high temperature alarm device of the automobile brake drum shoe of the present invention has the following beneficial effects:

1. Fully automatic control, and the brake drum of the wheel is independently controlled to dissipate heat. It also has a monitoring display function to display the temperature of the brake drum shoe in real time, and actively prevent the occurrence of safety accidents;

2. The heat dissipation is rapid and the performance is reliable. The blower adopts the air-cooling method, and the air-cooling heat dissipation is relatively balanced, which can completely ensure the uniformity of the heat and cold of each particle of the brake drum, effectively avoid the defect of serious deformation of the brake drum, and greatly prolong the braking time. The service life of brake pads and other accessories materials; it also avoids the trouble of water flowing into the brake drum from the inspection hole or the edge of the brake drum in the traditional water-cooled heat dissipation method, and the trouble of no water in the water tank, and eliminates the water decay of the service brake. security risks;

3. The use of the present invention is conducive to maintaining the braking efficiency of the vehicle and reducing the maintenance workload of the brake. Since the blower is installed on the inner surface of the brake base plate, the blower is forced to exhaust air from the inside to the outside during operation, and a large amount of brake wear debris and Dust can be discharged from the brake drum in time, cooling and cleaning the surface of the friction pair;

4. The present invention has the advantages of simple structure, convenient installation, low cost (equivalent to the cost of flushing water radiator), favorable for popularization and application, and broad market prospect.

The automatic control heat dissipation and high temperature alarm device of the automobile brake drum shoe of the present invention will be further described below with reference to the accompanying drawings and embodiments.

Description of drawings

Fig. 1 is the physical circuit connection schematic diagram of the automobile brake drum shoe automatic control heat dissipation and high temperature alarm device of the present invention;

Fig. 2 is the circuit principle wiring diagram of the automatic control heat dissipation and high temperature alarm device of the automobile brake drum shoe of the present invention;

Fig. 3 is the structural representation that single brake drum is connected with blower;

Fig. 4 is the B-B direction sectional view of Fig. 3;

Fig. 5 is the A-A sectional view of Fig. 4;

Fig. 6 is a partial enlarged view at C of Fig. 5;

Fig. 7 is the D direction partial enlarged view of Fig. 6;;

Description of reference numbers: 1- rear drive axle, 2- sensor circuit, 3- blower, 4- blower circuit, 5- battery, 6- temperature controller, 7- sound and light alarm device, 8- brake drum inspection hole, 9-alarm flasher, 10-bulb, 11-temperature sensor, 12-brake drum shoe, 13-brake bottom plate, 14-screw II, 15-sensor positioning hole, 16-screw I, 17-washer.

Detailed ways

As shown in FIGS. 1 to 7 , the auto-controlled heat dissipation and high temperature alarm device of the automobile brake drum shoe of the present invention includes a battery 5 , a temperature sensor 11 , a temperature controller 6 , a blower 3 , and an acousto-optic alarm device 7 . The battery 5 is connected to the temperature controller 6 through a wire, and the battery 5 provides power for the device. As shown in FIGS. 5 to 7 , sensor positioning holes 15 are provided on the inner walls of the brake drum shoes 12 of the two rear wheels of the truck, and the temperature sensors 11 are respectively arranged in the sensor positioning holes 15. The temperature sensors 11 communicate with the temperature through the sensor circuit 2. The controller 6 is connected, and the sensor circuit 2 is positioned on the inner wall of the brake drum shoe 12 through the screw I16 and the washer 17. The temperature controller 6 is an existing device purchased directly, and will not be described in detail here. As shown in Figures 1, 3, and 4, the blower 3 is respectively installed on the inner surface of the brake bottom plate 13 inside the brake drum shoes 12 of the two rear wheels of the truck. In this embodiment, the middle of the inner surface of the brake bottom plate 13 is provided with The blower installation position, the blower 3 is connected to the blower installation position through screws II14. The blower 3 is connected to the temperature controller 6 through the blower circuit 4 . The temperature controller 6 controls the blower 3 to blow air toward the brake shoe 12 when the blower 3 is working, and the sound and light alarm device 7 is connected to the temperature controller 6 through an alarm circuit.

When the truck is running, the temperature sensor 11 detects the temperature of the brake drum shoe 12 in real time, and transmits the detected temperature signal to the temperature controller 6, and the temperature controller 6 receives the temperature signal of the temperature sensor 11 and converts the temperature signal. A voltage signal is obtained, and the temperature controller 6 processes and judges the voltage signal. The temperature controller 6 is provided with a setting when the temperature of the brake drum shoe 12 reaches the set value T (T can be set to a different value according to different models or the structure of the brake drum shoe), and the temperature controller 6 controls the blower 3 to start when it is reached. Work, the temperature controller 6 outputs a control signal to the relay switch of the blower 3, and then controls the blower 3 to work. The temperature controller 6 processes and judges the voltage signal, that is, to judge whether the temperature value actually detected by the temperature sensor 11 reaches the set value T, and when it reaches the set value T, it controls the blower 3 to work, and cools down the brake drum of the automobile, otherwise the blower 3 is temporarily not controlled. Work. The sound and light alarm device 7 is arranged in the cab of the truck. When the temperature sensor 11 detects that the temperature value of the brake drum shoe 12 reaches the pre-warning temperature value set by the temperature controller 6, the temperature controller 6 automatically controls the relay of the sound and light alarm device 7. Switch, make the sound and light alarm device 7 work, the light bulb 10 of the sound and light alarm device 7 lights up, and the alarm flasher 9 of the sound and light alarm device 7 flashes continuously to remind the driver to take corresponding safety measures in advance to ensure driving safety.

The above embodiments are only preferred embodiments of the present invention, and the structure of the present invention is not limited to the forms listed in the above embodiments. Any modifications, equivalent replacements, etc. made within the spirit and principle of the present invention shall be included in the within the protection scope of the present invention.

Claims (4)

1. An automatic control heat dissipation and high temperature alarm device for automobile brake drum shoes is characterized by comprising a storage battery (5), a temperature sensor (11), a temperature controller (6), an air blower (3) and an audible and visual alarm device (7), wherein the storage battery (5) is connected with the temperature controller (6) through a lead, the inner side walls of the brake drum shoes (12) of two rear wheels of a truck are provided with sensor positioning holes (15), the temperature sensors (11) are respectively arranged in the sensor positioning holes (15), the temperature sensor (11) is connected with the temperature controller (6) through a sensor circuit (2), the air blower (3) is respectively arranged on the inner side surfaces of brake bottom plates (13) on the inner sides of the brake drum shoes (12) of the two rear wheels of the truck, the air blower (3) is connected with the temperature controller (6) through an air blower circuit (4), and the temperature controller (6) controls the air blower (3) to blow air towards the brake drum shoes (12) when the air blower (3) works, the sound and light alarm device (7) is connected with the temperature controller (6) through an alarm circuit.

2. The automatic heat dissipation and high temperature alarm device for the brake drum shoes of the automobile as claimed in claim 1, wherein the blower mounting position is provided in the middle of the inner side surface of the brake base plate (13), and the blower (3) is connected to the blower mounting position by a screw ii (14).

3. The automatic control heat dissipation and high temperature alarm device for the automobile brake drum shoes as claimed in claim 1, wherein the temperature controller (6) receives the temperature signal from the temperature sensor (11) and converts the temperature signal into a voltage signal, the temperature controller (6) processes and judges the voltage signal, and the temperature controller (6) outputs a control signal to a relay switch of the blower (3) to further control the blower (3) to operate.

4. The automatic control heat dissipation and high temperature alarm device for the automobile brake drum shoes as claimed in claim 1, wherein the sound and light alarm device (7) is disposed in a cab of a truck, when the temperature sensor (11) detects that the temperature value of the brake drum shoes (12) reaches the pre-warning temperature value set by the temperature controller (6), the temperature controller (6) automatically controls a relay switch of the sound and light alarm device (7) to enable the sound and light alarm device (7) to work.

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