Anti-freezing device for engine

Abstract

The utility model relates to the technical field of engines, in particular to an engine anti-freezing device which comprises an oil pan, a parking heating device and a heat exchange device, a containing space used for installing the heat exchange device is formed in the oil pan, and the heat exchange device comprises a water inlet pipe, a water outlet pipe and a heat exchanger. One end of the water inlet pipe and one end of the water outlet pipe are communicated with the parking heating device, the other ends of the water inlet pipe and the water outlet pipe penetrate through the oil pan and are arranged in the containing space, a penetrating liquid flow channel is formed in the heat exchanger, one end of the liquid flow channel is communicated with the water inlet pipe, and the other end of the liquid flow channel is communicated with the water outlet pipe. And the heat exchanger is used for transferring heat of a medium in the liquid flow channel to the containing space, so that the heating process of engine oil is accelerated to a certain extent, a vehicle is further heated quickly, and abrasion of a friction pair is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, and particularly relates to an engine antifreeze device. Background Art

[0002] At present, in relatively cold seasons or regions, such as North China, Northeast China, and Northwest China in China, the temperature will drop to -5°C to -60°C after entering winter. When the engine is in a cold working condition, the engine oil temperature will be relatively low and the viscosity will be relatively large, resulting in a long time for the engine oil circuit to build pressure, and it is not easy to establish a lubricating oil film, resulting in an increase in the frictional resistance on the surface of the friction pair, aggravating wear, and at the same time increasing the frictional loss work. Summary of the Utility Model

[0003] An embodiment of the utility model discloses an engine antifreeze device and a vehicle, which are used to solve the problem of low engine oil temperature during cold start of the engine, quickly warm up the engine, and avoid wear of the friction pair.

[0004] To achieve the above object, the embodiment of the utility model provides the following technical solutions:

[0005] The utility model provides an engine antifreeze device, including: an oil pan and a heat exchange device;

[0006] An accommodation space for installing the heat exchange device is formed inside the oil pan;

[0007] The heat exchange device includes a water inlet pipe, a water outlet pipe, and a heat exchanger;

[0008] One end of the water inlet pipe and the water outlet pipe is communicated with the parking heating device, and the other ends respectively penetrate through the oil pan and are arranged in the accommodation space. A through liquid flow channel is arranged inside the heat exchanger. One end of the liquid flow channel is communicated with the water inlet pipe, and the other end is communicated with the water outlet pipe. The heat exchanger is used to transfer the heat of the medium inside the liquid flow channel to the accommodation space.

[0009] A heat exchange device is additionally arranged inside the oil pan. The heat exchange device consists of a water inlet pipe, a water outlet pipe, and a heat exchanger. A liquid flow channel communicating with the water inlet pipe and the water outlet pipe is arranged inside the heat exchanger of the present application. That is, the liquid medium inside the liquid flow channel of the heat exchanger of the present application can be added by the parking heating device according to actual needs. The parking heating device is the parking heating water boiler of the vehicle itself. At this time, the heat exchanger can transfer the liquid medium inside the parking heating device, and this part of the liquid medium can transfer heat to the engine oil inside the oil pan, thereby completing the heating process of the engine oil. During the entire heating process of the engine oil described above, since the liquid medium heated by the heat exchanger comes from the parking heating water boiler of the vehicle itself, and the heat of this part of the liquid medium can be regulated by the parking heating water boiler, and the process of directly exchanging heat with the engine oil inside the oil pan speeds up the heating process of the engine oil to a certain extent, further quickly warms up the vehicle, and avoids wear of the friction pair.

[0010] In some embodiments, the heat exchanger includes at least one heating pipe, and the liquid flow channels opened inside each heating pipe communicate with each other.

[0011] In some embodiments, multiple heating pipes are irregularly formed inside the accommodation space.

[0012] In some embodiments, the heat exchanger, the water inlet pipe, and the water outlet pipe are of an integral structure.

[0013] In some embodiments, the heat exchanger and the oil pan are of an integral structure.

[0014] In some embodiments, the medium inside the water inlet pipe and the water outlet pipe is coolant.

[0015] In some embodiments, the parking heating device includes a heating component and a water tank. The heating component is used to heat the medium inside the water tank, and the water tank communicates with the water inlet pipe and the water outlet pipe.

[0016] In some embodiments, the parking heating device further includes a water pump assembly, and the water tank communicates with the water inlet pipe and the water outlet pipe through the water pump assembly.

[0017] In some embodiments, the engine antifreeze device further includes a control device, which is used to monitor the temperature of the medium inside the accommodation space and to drive the opening and closing of the heat exchanger.

[0018] In some embodiments, the control device includes a temperature sensor and a control unit. The temperature sensor is arranged inside the accommodation space, and the control unit is signal-connected to the temperature sensor and regulates the opening and closing of the parking heating device according to the signal of the temperature sensor. Description of the Drawings

[0019] Figure 1 Schematic diagram of the overall structure of the engine anti-freezing device provided by the embodiment of the present invention;

[0020] Figure 2 Top view of the overall structure of the engine anti-freezing device provided by the embodiment of the present invention.

[0021] In the figure: 1 - oil pan, 2 - heat exchanger, 3 - accommodation space, 4 - water inlet pipe, 5 - water outlet pipe. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Among them, in the description of the embodiments of the present application, unless otherwise specified, " / " means "or", for example, A / B may mean A or B; the "and / or" in the text is only a description of the association relationship of the associated objects, indicating that there can be three relationships, for example, A and / or B may mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiments of the present application, "a plurality" means two or more than two.

[0023] Hereinafter, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as implying or suggesting relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0024] The embodiment of the present invention discloses an engine anti-freezing device, which is used to solve the problem of low oil temperature during cold start of the engine, quickly warm up the vehicle, and avoid wear of the friction pair.

[0025] To achieve the above object, the embodiment of the present invention provides the following technical solutions:

[0026] Please refer to Figure 1 、 Figure 2 , the present invention provides an engine anti-freezing device, including: an oil pan 1 and a heat exchange device;

[0027] An accommodation space 3 for installing the heat exchange device is formed inside the oil pan 1;

[0028] The heat exchange device includes a water inlet pipe 4, a water outlet pipe 5, and a heat exchanger 2;

[0029] One end of the inlet pipe 4 and the outlet pipe 5 is connected to the parking heating device, and the other ends respectively penetrate through the oil pan 1 and are arranged in the accommodation space 3. A through liquid flow channel is arranged inside the heat exchanger 2. One end of the liquid flow channel is connected to the inlet pipe 4, and the other end is connected to the outlet pipe 5. The heat exchanger 2 is used to transfer the heat of the medium inside the liquid flow channel to the accommodation space 3.

[0030] In this application, a heat exchange device is additionally arranged inside the oil pan 1. The heat exchange device is composed of an inlet pipe 4, an outlet pipe 5, and a heat exchanger 2. And in this application, a liquid flow channel communicating with the inlet pipe 4 and the outlet pipe 5 is arranged inside the heat exchanger 2. That is, the liquid medium inside the liquid flow channel of the heat exchanger 2 of this application can be added by the parking heating device according to actual needs. The parking heating device is the parking heating water boiler of the vehicle itself. At this time, the heat exchanger 2 can transfer the liquid medium inside the parking heating device, and this part of the liquid medium can transfer the heat to the engine oil inside the oil pan 1, thereby completing the heating process of the engine oil. During the entire above heating process of the engine oil, since the liquid medium heated by the heat exchanger 2 comes from the parking heating water boiler of the vehicle itself, and the heat of this part of the liquid medium can be regulated by the parking heating water boiler, and the process of directly exchanging heat with the engine oil inside the oil pan 1, to a certain extent, speeds up the heating process of the engine oil, further quickly warms up the vehicle, and avoids wear of the friction pair.

[0031] Furthermore, please refer to Figure 2 , the heat exchanger 2 includes at least one heating pipe, and the liquid flow channels opened inside each heating pipe communicate with each other. The number of heating pipes in the heat exchanger 2 of this application can be changed according to actual needs. For example, when the size of the oil pan 1 is relatively large, the number of heating pipes in this application can be increased, so as to better heat the engine oil.

[0032] Furthermore, multiple heating pipes are irregularly formed inside the accommodation space 3. Based on the multiple heating pipes, this application also sets that multiple heating pipes are irregularly formed inside the accommodation space 3. The purpose of adopting this design is that the irregular distribution can better exchange heat with the engine oil inside the accommodation space 3, and further can better heat the engine oil inside the oil pan 1, facilitating the rapid start of the vehicle and the wear of the friction pair.

[0033] Furthermore, the heat exchanger 2, the inlet pipe 4, and the outlet pipe 5 are of an integrated structure. This application sets the inlet pipe 4, the outlet pipe 5, and the heat exchanger 2 as an integrated structure, thereby greatly improving the connection stability between the inlet pipe 4, the outlet pipe 5, and the heat exchanger 2, and further avoiding the occurrence of the phenomenon that the coolant enters the oil pan 1, ensuring the stable operation of the engine.

[0034] Furthermore, the heat exchanger 2 and the oil pan 1 are of an integral structure. In this application, the heat exchanger 2 and the oil pan 1 are set as an integral structure, thus greatly improving the connection stability between the heat exchanger 2 and the oil pan 1. When the engine is in different working conditions, the phenomenon that the heat exchanger 2 detaches from the oil pan 1 is avoided.

[0035] Furthermore, the medium inside the water inlet pipe 4 and the water outlet pipe 5 is coolant. In this application, since the medium inside the water inlet pipe 4 and the water outlet pipe 5 is coolant, the vehicle's own parking heating water boiler system is effectively utilized, further saving resource consumption.

[0036] Furthermore, the parking heating device includes a heating component and a water tank. The heating component is used to heat the medium inside the water tank, and the water tank is connected to the water inlet pipe 4 and the water outlet pipe 5. It should be noted that the parking heat exchange device is the above-mentioned parking heating water boiler, which takes oil from the vehicle fuel tank as fuel to heat the engine coolant. The actual volume of the water tank in this application is smaller than the existing volume of the parking heating water boiler and is a separate space.

[0037] Furthermore, the parking heating device also includes a water pump assembly. The water tank is connected to the water inlet pipe 4 and the water outlet pipe 5 through the water pump assembly. In this application, the addition of the water pump assembly can better transfer the medium with temperature. The oil pan 1 in this application integrates the heat exchanger 2, and the heat exchanger 2 heats the engine oil in the oil pan 1 through the coolant with a higher temperature. Compared with the traditional electric heating device, the heating is relatively mild and will not cause the engine oil to deteriorate. Moreover, this application utilizes the existing parking heating water boiler technology and does not need to draw power from the vehicle battery or an external power source as the energy for heating the coolant, which is more convenient. Secondly, compared with the existing technology of preheating the antifreeze in the engine through a water boiler, the oil heating system in this application has a dedicated water tank and only needs to heat part of the coolant, and then use this part of the coolant to heat all the engine oil in the oil pan 1, effectively solving the problem of low engine oil temperature during cold start. In addition, this application does not need to pump out the engine oil in the oil pan 1 and then heat it, and there is no need for an additional engine oil oil circuit, so there is no leakage risk and good reliability.

[0038] Furthermore, the engine antifreeze device also includes a control device. The control device is used to monitor the temperature of the medium in the accommodation space 3 and to drive the opening and closing of the heat exchanger 2. In the above structure, a control device is added in this application. The control device is mainly used for the control of the overall structure of this application, specifically to drive the opening and closing of the heat exchanger 2, making this application have better practicability.

[0039] Furthermore, the control device includes a temperature sensor and a control unit. The temperature sensor is disposed in the accommodation space 3. The control unit is signal-connected to the temperature sensor and controls the opening and closing of the parking heating device according to the signal of the temperature sensor. In the above structure, the control process of the control device of the present application is as follows: First, the temperature sensor collects the oil temperature T in the oil pan 1 and determines whether T is less than the set temperature T0 (T0 is the critical temperature at which the engine can normally establish a lubricating oil film and start smoothly without the aid of this engine oil heating system). If T is not less than T0, the temperature sensor does not send an action instruction to the control unit, and thus the control unit does not send an action instruction to the heat exchanger 2. At this time, the parking heating water boiler is also not powered on and is in a non-start state. If T is less than T0, the temperature sensor sends an action instruction to the control unit, and then the control unit sends an action instruction to the parking heating water boiler to power on and start it. During the operation of the parking heating water boiler, the temperature sensor continuously collects the oil temperature T, and the control unit always compares it with the set temperature T0. When the oil temperature in the oil pan 1 rises until it is not less than T0, the electronic control unit will send a disconnection instruction to the parking heating water boiler to cut off the power supply to the parking heating water boiler. In summary, the overall heating process of the engine oil is completed.

[0040] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

Claims

1. An engine antifreeze device, characterized in that: include: Oil pan, parking heater, heat exchanger; The oil pan is internally formed with a receiving space for installing the heat exchange device; The heat exchange device comprises a water inlet pipe, a water outlet pipe and a heat exchanger; One end of the water inlet pipe and the water outlet pipe are connected to the parking heating device, and the other ends respectively penetrate the oil pan and are arranged in the accommodating space. A penetrating liquid flow channel is arranged inside the heat exchanger. One end of the liquid flow channel is connected to the water inlet pipe, and the other end is connected to the water outlet pipe. The heat exchanger is used to transfer the heat of the medium inside the liquid flow channel to the accommodating space.

2. The engine antifreeze device according to claim 1, characterized in that: The heat exchanger comprises at least one heating tube, wherein the liquid flow channels opened inside each of the heating tubes are interconnected.

3. The engine antifreeze device according to claim 2, characterized in that: A plurality of heating tubes are irregularly formed inside the accommodation space.

4. The engine antifreeze device according to claim 3, characterized in that: The heat exchanger, the water inlet pipe and the water outlet pipe are an integrated structure.

5. The engine antifreeze device according to claim 1, characterized in that: The heat exchanger and the oil pan are an integrated structure.

6. The engine antifreeze device according to claim 1, characterized in that: The medium inside the water inlet pipe and the water outlet pipe is coolant.

7. The engine antifreeze device according to claim 1, characterized in that: The parking heater comprises a heating component and a water tank. The heating component is used to heat the medium inside the water tank. The water tank is connected with a water inlet pipe and a water outlet pipe.

8. The engine antifreeze device according to claim 7, characterized in that: The parking heater also includes a water pump assembly, and the water tank is connected with a water inlet pipe and a water outlet pipe through the water pump assembly.

9. The engine antifreeze device according to claim 1, characterized in that: The engine antifreeze device further comprises a regulating device, which is used to monitor the temperature of the medium in the accommodating space and to drive the opening and closing of the heat exchanger.

10. The engine antifreeze device according to claim 9, characterized in that: The control device includes a temperature sensor and a control unit. The temperature sensor is arranged in the accommodation space. The control unit is connected to the temperature sensor signal and controls the on and off of the parking heater according to the signal of the temperature sensor.

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