CN204299671U - Prevent the protective gear that motor car engine is overheated - Google Patents

Abstract

The utility model relates to a protection device for preventing overheating of an automobile engine, which comprises a low-temperature control part and a high-temperature control part. A low-temperature thermostat is installed at the remaining part of the pipe, and the low-temperature thermostat is connected to the power switch circuit of the cooling fan of the original car. The high-temperature control part includes a cooling box, and the water inlet and return port of the cooling box are connected in parallel through pipelines. On the circulating pipeline of the engine cooling system of the original car, a high temperature thermostat is installed at the water return port of the cooling box. The application controls the operation of the fan at the front of the car by adding a thermostat at the water outlet pipe and the return pipe of the heat exchanger, and uses the fan to pour cold air from the outside into the front of the car to cool down the parts of the front of the car. At the same time, a cooling box is added, and when the engine temperature is high, the internal coolant is introduced into the circulation system of the original cooling system to further reduce the engine temperature.

Description

Protection device against overheating of automobile engine

technical field

The utility model relates to a temperature protection device, in particular to a protection device applied to the cooling of an automobile engine.

Background technique

The engine cooling system plays an important role in the vehicle power system. The cooling system can reasonably adjust and control the temperature when the engine is working, so that all parts of the engine can be kept at normal operating temperature, so as to obtain ideal power output and good performance. Fuel economy, the engine wouldn't work without the help of the cooling system. With the increasing power of automobile engines, the requirements for heat dissipation are also getting higher and higher. It is difficult for the air-cooled system to achieve a uniform heat dissipation effect, and it is easy to cause some components to overheat and damage the engine, and the heat dissipation efficiency is not as good as that of the water-cooled system. Therefore, Almost all cars now use water-cooled cooling systems.

The cooling system of the automobile engine uses a water pump to increase the pressure of the coolant, forcing the coolant to circulate in the cooling channel of the engine, taking away the excess heat of the engine and keeping it at the optimum working temperature. This cycle mode for cooling the engine is called the main cycle, and the main cycle mode must also be set to two different cooling cycle modes to ensure that the engine works better under different operating conditions, namely cold cycle and normal cycle, That is, the small cycle and the big cycle that the old drivers often say.

Cold car cycle (small cycle) means that after the engine is cold started, the coolant with a lower temperature will not open the thermostat. At this time, the coolant only circulates in the water channel of the engine through the water pump, and the purpose is to make the engine reach Normal working temperature, when the engine temperature rises and the coolant temperature reaches the thermostat setting value (generally 80 degrees), the thermostat valve opens and the coolant circulates normally (big cycle). At this time, the coolant flows from the engine The water flows out of the water channel and passes through the radiator at the front of the car to dissipate heat. The water pump then sends the cooled coolant to the engine for cooling cycle. The thermostat is responsible for controlling the switching of the cycle mode to keep the engine at the best working temperature as possible.

But no matter which of the above methods, the temperature is actually set higher. For a car in poor condition, such a high temperature will often cause the car to break down.

Contents of the invention

The purpose of the utility model is to propose a protective device for preventing overheating of an automobile engine, which can be used regardless of the vehicle condition and can effectively reduce the engine temperature.

The purpose of this utility model is achieved like this: the protection device that prevents automobile engine from overheating, it comprises low-temperature control part and high-temperature control part, and described low-temperature control part comprises the tee pipe that is connected in series on the original car radiator return water pipe and water outlet pipe, A low-temperature thermostat is installed at the remaining one of the three-way pipes, and the low-temperature thermostat is connected to the power switch circuit of the cooling fan of the original car. The high-temperature control part includes a cooling box, and the water inlet and return water of the cooling box pass through The pipelines are connected in parallel to the circulation pipeline of the original vehicle engine cooling system, and a high temperature thermostat is installed at the water return port of the cooling box.

The application controls the operation of the fan at the front of the car by adding a thermostat at the water outlet pipe and the return pipe of the heat exchanger, and uses the fan to pour cold air from the outside into the front of the car to cool down the parts of the front of the car. At the same time, a cooling box is added, and when the engine temperature is high, the internal coolant is introduced into the circulation system of the original cooling system to further reduce the engine temperature. This application can be modified in the original vehicle state of any vehicle, and its structure is simple, does not damage the original vehicle structure, can effectively reduce the temperature of the front and engine, and prolong the service life of the vehicle.

Description of drawings: the concrete structure of the present utility model is provided by following accompanying drawing and embodiment:

Figure 1 is a structural schematic diagram of a protection device for preventing overheating of an automobile engine.

Legend: 1. Temperature probe, 2. Cooling box, 3. High temperature thermostat, 4. Thermostat, 5. Return water pipe, 6. Outlet pipe, 7. Low temperature thermostat, 8. Tee pipe, 9. Power switch, 10, cooling fan.

Detailed ways:

The utility model is not limited by the following examples, and the specific implementation manner can be determined according to the technical scheme of the utility model and actual conditions.

Embodiment : as shown in Fig. 1, the protective device that prevents automobile engine from overheating comprises low-temperature control part and high-temperature control part, and described low-temperature control part comprises the tee pipe 8 that is connected in series on original car radiator return water pipe 5 and water outlet pipe 6, The low temperature thermostat 7 is installed at the remaining one of the tee pipe 8, and the low temperature thermostat 7 is connected to the power switch 9 circuit of the original car cooling fan 10. The high temperature control part includes a cooling box 2, the water inlet and the return port of the cooling box 2 are connected in parallel to the circulation pipeline of the original vehicle engine cooling system through pipelines, and a water inlet of the cooling box 2 is installed A temperature probe 1 and a high temperature thermostat 3 are installed at the water return port. The temperature probe 1 can be connected with the on-board computer to display the water temperature. Although the invention of this application needs to be realized with the help of a circuit, the main idea of this application is to set up a low temperature control part and a high temperature control part, through fan cooling and water cooling cooling, and then cooperate with the original car's coolant circulation system to achieve the purpose of three ways of cooling , so the circuit diagrams of the relevant electrical appliances in this application are omitted.

The cooling box 2 is made of a cavity box structure, and cooling liquid is placed therein. The cooling box 2 is actually equivalent to adding a box for the coolant, which forms a double-box structure with the coolant box of the original car, and is used to rapidly reduce the temperature of the coolant. The cooling time is related to the volume of the coolant in the box. More, the longer the cooling time, and vice versa.

When in use, the working temperature of the low-temperature thermostat 7 is set lower than the working temperature of the original car thermostat 4, and the working temperature of the high-temperature thermostat 3 is set at 100°C. Generally, the working temperature of the thermostat 4 of the vehicle is 80°C, so it is more appropriate to set the working temperature of the cryogenic thermostat 7 at 60-70°C. When the vehicle is just started, the temperature of the coolant in the cooling system of the original vehicle is also low because the engine temperature is low at this time. When the coolant reaches 60-70°C, the low-temperature thermostat 7 operates, and the cooling fan 10 of the original vehicle Work, wind blowing cooling for the various components in the front of the car. When the cooling liquid reaches 80°C, the thermostat 4 works, and the original vehicle cooling liquid circulation system is started to cool down. When the coolant reaches 100°C, the cooling effect of the wind blowing and the cooling system of the original car cannot be satisfied. At this time, the high-temperature thermostat 3 operates to turn on the cooling box 2, and the coolant with a lower temperature participates in cooling.

The above technical features constitute the best embodiment of this application, which has strong adaptability and best implementation effect, and non-essential technical features can be added or subtracted according to actual needs to meet the needs of different situations.

Claims (4)

1. the protective gear preventing motor car engine overheated, it is characterized in that: it comprises low temperature control section and high-temperature control part, described low temperature control section comprises the three-way pipe be connected on former car radiator return pipe and outlet pipe, described three-way pipe residue one logical place's installing low-temp. temp .-controller, low-temp. temp .-controller is connected with the power switch circuit of former car radiation fan, described high-temperature control part comprises cooling box, the water intake of described cooling box and backwater mouth access on the circulation loop of former car engine cooling system by pipeline parallel connection, at the backwater mouth place of described cooling box installing high-temperature control device.

2. prevent the protective gear that motor car engine is overheated as claimed in claim 1, it is characterized in that: described cooling box is cavity housing structure, in it, place cooling liquid.

3. prevent the protective gear that motor car engine is overheated as claimed in claim 1, it is characterized in that: the operating temperature of high-temperature control device (3) is set in 100 DEG C.

4. prevent the protective gear that motor car engine is overheated as claimed in claim 1, it is characterized in that: the operating temperature of low-temp. temp .-controller is set in 60-70 DEG C.