Heating structure, vehicle preheating system and vehicle

Abstract

The utility model relates to a heating structure, a vehicle preheating system and a vehicle. The heating structure comprises a hydraulic module and a heating module, the hydraulic module comprises a circulation pipeline, and the heating module is matched with the circulation pipeline and used for heating liquid in the circulation pipeline. Wherein the circulation pipeline comprises a heat exchange pipe part used for being matched with the oil shell, and the heat exchange pipe part is used for heating the engine oil. On the basis of the arrangement, engine oil in the vehicle oil shell is heated by the heating structure, so that the viscosity of the engine oil is reduced, and the engine oil flows more easily. And the low-viscosity engine oil can reach each part needing to be lubricated more quickly when the engine is started, so that the frictional resistance of each part during starting is reduced. And therefore, the engine is easier to rotate, and the starting success rate is increased. In addition, by preheating the engine oil, the engine can reach the efficient combustion temperature more quickly, and emission is reduced.

Description

Technical Field

[0001] The present application relates to the field of heating, and particularly to a heating structure, a vehicle preheating system, and a vehicle. Background Art

[0002] In a low-temperature environment, the viscosity of the engine oil in a vehicle becomes higher and its fluidity becomes lower. As a result, when starting the vehicle, the frictional resistance to be overcome is very large, thereby reducing the starting success rate.

[0003] This is because when the temperature drops, especially in cold weather, the engine oil becomes more viscous and its flow rate slows down. This means that when the engine starts, the engine oil cannot quickly flow to all the components that need lubrication, thereby increasing the friction between the internal parts of the engine. At the same time, when the engine starts, the crankshaft needs to overcome the friction between the piston and the cylinder wall, the connecting rod bearing, and other moving parts. If the viscosity of the engine oil is too high, the friction between these components will increase significantly, resulting in an increase in starting resistance and making it difficult to start the engine. In extreme cases, this may cause the engine to fail to start. Therefore, this problem needs to be solved. Summary of the Utility Model

[0004] The purpose of the present application is to provide a heating structure, a vehicle preheating system, and a vehicle.

[0005] According to the first aspect of the embodiments of the present application, a heating structure is provided. The heating structure is used to heat the engine oil in the oil pan. The heating structure includes:

[0006] A hydraulic module, the hydraulic module includes a circulation pipeline;

[0007] A heating module, the heating module is arranged in cooperation with the circulation pipeline;

[0008] Wherein, the circulation pipeline includes a heat exchange pipe portion for cooperating with the oil pan.

[0009] In some embodiments, the heating structure further includes a temperature sensor and a controller that are electrically connected. The temperature sensor is arranged on the oil pan or the circulation pipeline and is used to obtain the temperature signal of the oil pan or the circulation pipeline;

[0010] The heating module is connected to the controller. The controller is used to receive the temperature signal and is used to send a working signal related to the temperature signal to the heating module.

[0011] In some embodiments, the heating structure further includes a water pressure sensor and a driving pump. The driving pump is disposed on the circulation pipeline and is used to drive the liquid flow in the circulation pipeline. The water pressure sensor is used to obtain the water pressure signal of the circulation pipeline. Both the water pressure sensor and the driving pump are disposed on the circulation pipeline;

[0012] The driving pump is connected to the controller. The controller is configured to receive the water pressure signal and send a working signal related to the water pressure signal to the driving pump.

[0013] In some embodiments, the heat exchange tube portion includes a plurality of accommodating portions and a plurality of connecting portions. Every two of the accommodating portions are connected by one of the connecting portions. The accommodating portions are arranged at intervals, and the minimum distance between the accommodating portions is greater than or equal to 20 mm and less than or equal to 60 mm.

[0014] In some embodiments, the heating module communicates with the fuel tank, and the heating module includes an ignition portion and a pump device. The pump device is used to extract the fuel from the fuel tank, and the ignition portion is used to ignite the fuel;

[0015] Wherein, after the pump device extracts the fuel from the fuel tank, the ignition portion burns the fuel in the fuel tank to generate heat to heat the liquid in the circulation pipeline.

[0016] According to a second aspect of the embodiments of the present application, there is provided a vehicle preheating system. The vehicle preheating system includes an oil sump and the heating structure as described in any one of the above embodiments;

[0017] The heating structure is arranged in cooperation with the oil sump.

[0018] In some embodiments, the oil sump includes a connected first shell unit and a second shell unit. A first space unit for accommodating engine oil is arranged in the first shell unit, and a second space unit for accommodating engine oil is arranged in the second shell unit. The depth of the first space unit is less than the depth of the second space unit, and the bottom of the second space unit is lower than the bottom of the first space unit;

[0019] At least a part of the heat exchange tube portion is arranged at the bottom of the second space unit.

[0020] In some embodiments, the heat exchange tube portion is fixed to the bottom surface and / or side surface of the second shell unit.

[0021] In some embodiments, the oil sump includes an inner wall surface, and the inner wall surface encloses an oil storage space for accommodating engine oil;

[0022] A fixing groove is provided on the inner wall surface, and at least a part of the heat exchange pipe portion is located in the fixing groove.

[0023] In some embodiments, the oil shell further includes a heat exchange unit, and the heat exchange unit includes a heat exchange space. The heat exchange pipe portion is disposed in the heat exchange space. The oil shell includes an oil storage space for containing engine oil. At least a part of the heat exchange space is located in the oil storage space, and the heat exchange space is isolated from the oil storage space.

[0024] In some embodiments, the vehicle preheating system further includes an engine block, and the heat exchange pipe portion is cooperatively arranged with the engine block for heat exchange with the engine block.

[0025] In some embodiments, the vehicle preheating system further includes a driving pump. The driving pump drives the liquid in the circulation pipeline to flow. After the liquid in the circulation pipeline is heated by the heating module, it first exchanges heat with the engine block and then exchanges heat with the oil shell.

[0026] According to the third aspect of the embodiments of the present application, a vehicle is provided. The vehicle includes the vehicle preheating system as described in any one of the above embodiments.

[0027] The beneficial technical effects brought by the technical solutions provided by the embodiments of the present application are as follows:

[0028] By providing a hydraulic module and a heating module. The circulation pipeline includes a heat exchange pipe portion, and the heat exchange pipe portion is cooperatively arranged with the oil shell for heating the engine oil. Based on the above settings, the engine oil in the oil shell of the vehicle is heated by the heating structure, so that the viscosity of the engine oil is reduced and it is easier to flow. The low-viscosity engine oil can reach all lubricated components faster when the engine starts, thereby reducing the frictional resistance during the start of each component. Further, the engine is easier to rotate, thus improving the starting success rate. In addition, by preheating the engine oil, the engine can reach the temperature for efficient combustion faster, reducing the generation of emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0030] Figure 1 It is a schematic structural diagram of a heating structure shown according to an embodiment of the present application.

[0031] Figure 2Schematic diagram of the cooperation between the heating structure and the oil sump according to an embodiment of the present application.

[0032] Figure 3 Schematic diagram of the cooperation between the heating structure, the oil sump and the engine block according to an embodiment of the present application.

[0033] Figure 4 Schematic diagram of the structure of the oil sump according to an embodiment of the present application.

[0034] Figure 5 Schematic diagram of the structure of the oil sump from another perspective according to an embodiment of the present application.

[0035] Description of reference numerals:

[0036] Heating structure 10

[0037] Hydraulic module 100

[0038] Circulation pipeline 110

[0039] Heat exchange pipe part 111

[0040] Accommodating part 111A

[0041] Connection part 111B

[0042] Driving pump 120

[0043] Heating module 200

[0044] Controller 300

[0045] Water pressure sensor 400

[0046] Temperature sensor 500

[0047] Oil sump 600

[0048] First shell unit 610

[0049] First space unit 611

[0050] Second shell unit 620

[0051] Second space unit 621

[0052] Oil storage space 630

[0053] Fixing groove 631

[0054] Engine block 800 Detailed implementation manners

[0055] Here, in conjunction with the accompanying drawings, the technical solutions in the embodiments (or "implementation manners") of the present application will be clearly and completely described. When the following description involves the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0056] If there are terms related to directional indications or positional relationships in the embodiments of the present application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), then such terms are only used to explain the relative positional relationships and motion conditions between components in a certain specific posture (as shown in the accompanying drawings); if this specific posture changes, then the directional indication or positional relationship also changes accordingly. In addition, the terms "first", "second", etc. involved in the embodiments of the present application are only for the purpose of convenient description and cannot be understood as indicating or implying relative importance.

[0057] Engine oil (motor oil) plays a crucial role in a vehicle engine. It not only reduces the friction between moving parts but also helps with cooling, cleaning, and preventing corrosion. Some key components in the vehicle engine require its lubrication, such as the crankshaft, connecting rod bearings, piston pins, cylinder walls, and camshafts, etc. Among them, the crankshaft is the main rotating component of the engine, which converts the reciprocating motion of the piston into rotational motion through the connecting rod. Engine oil is delivered to the crankshaft journals and their bearings through the oil passages in the crankcase to reduce wear. The connecting rod connects the piston and the crankshaft and transmits the power of the piston. The connecting rod bearings bear great pressure and require continuous lubrication to avoid overheating and wear. The piston pin allows the piston to move freely in the cylinder, and the piston pin and its bushings need lubrication to reduce friction. The piston moves up and down in the cylinder, and the oil film on the cylinder wall can reduce the friction between the piston rings and the cylinder wall and also play a sealing role. The camshaft controls the opening and closing of the valves, and the camshaft and its bearings also need lubrication to reduce wear.

[0058] Engine oil is pumped from the oil pan to various parts of the engine by an oil pump and is distributed to the above-mentioned various components that need lubrication through an oil passage network. During the circulation process, the engine oil continuously carries away metal debris, dust, and other impurities generated by wear and is filtered by the oil filter to keep it clean. In addition, the engine oil can also absorb part of the heat to help cool the engine, thereby extending the engine life.

[0059] However, in a low-temperature environment, the viscosity of the engine oil becomes higher and its fluidity becomes lower, so that when the vehicle starts, the frictional resistance to be overcome is very large, thereby reducing the starting success rate.

[0060] This is because when the temperature drops, especially in cold weather, the engine oil becomes more viscous and its flow rate slows down. This means that when the engine starts, the oil cannot quickly flow to all the components that need lubrication, thus increasing the friction between the internal parts of the engine. At the same time, when the engine starts, the crankshaft needs to overcome the friction between the piston and the cylinder wall, the connecting rod bearings, and other moving parts. If the oil viscosity is too high, the friction between these components will increase significantly, resulting in increased starting resistance and making it difficult for the engine to start. In extreme cases, this may cause the engine to fail to start.

[0061] The present application provides a vehicle provided with a vehicle preheating system, which can cooperate with the vehicle body to start the vehicle.

[0062] Reference Figure 1 and Figure 2 As shown, the vehicle preheating system includes a heating structure 10 and an oil sump 600. The heating structure 10 is arranged in cooperation with the oil sump 600. That is, at least part of the heating structure 10 is arranged in contact with or inserted into the oil sump 600.

[0063] Continuing to refer to Figure 1 and Figure 2 As shown, the above-mentioned heating structure 10 includes a hydraulic module 100 and a heating module 200. Among them, the hydraulic module 100 includes a circulation pipeline 110, in which there is a liquid that can circulate in the circulation pipeline 110. It should be noted that the liquid here can be water, oil or other liquids. The heating module 200 can be heated by electricity or by combustion. No matter what heating method is used, as long as it can increase the heat, it is within the protection scope of the present application.

[0064] The above-mentioned heating module 200 is arranged in cooperation with the circulation pipeline 110 and is used to heat the liquid in the circulation pipeline 110. The heating module 200 is arranged in cooperation with the circulation pipeline 110, that is, the circulation pipeline 110 extends into the heating module 200, and the heating module 200 transfers the heat it emits to the circulation pipeline 110, and the circulation pipeline 110 transfers the heat to the liquid therein. Or, the heating module 200 extends into the circulation pipeline 110, directly contacts the liquid in the circulation pipeline 110, and transfers the heat generated by the heating module 200 to the liquid in the circulation pipeline 110. It should be noted that the heating module 200 can also be used not only to heat the liquid in the circulation pipeline 110, but also to heat other components on the vehicle, and the present application does not make any restrictions.

[0065] On the basis of the heating module 200 being arranged in cooperation with the circulation pipeline 110, referring to Figure 2As shown in the figure, the circulating pipeline 110 includes a heat exchange pipe portion 111 for cooperating with the oil sump 600, and the heat exchange pipe portion 111 is used to heat the engine oil. In other words, the structure of the circulating pipeline 110 located within the oil sump 600 can be regarded as the heat exchange pipe portion 111. That is, after the heating module 200 heats the liquid in the circulating pipeline 110, the heat exchange pipe portion 111 in the circulating pipeline 110 transfers its heat to the engine oil within the oil sump 600, causing its temperature to rise.

[0066] The above-mentioned heat exchange pipe portion 111 for cooperating with the oil sump 600 may include the following situations: First, the heat exchange pipe portion 111 is attached to the outer wall surface of the oil sump 600 to transfer heat to the wall surface of the oil sump 600 first, and then transfer the heat to the engine oil inside through the wall surface of the oil sump 600. Second, the heat exchange pipe portion 111 directly enters the interior of the oil sump 600 and is in direct contact with the engine oil within the oil sump 600, directly transferring its heat to the engine oil. That is, energy can be transferred to the engine oil indirectly or directly. Whatever the transfer method is within the protection scope of this application.

[0067] Based on the above settings, the engine oil within the vehicle oil sump 600 is heated by the heating structure 10, thereby reducing the viscosity of the engine oil and making it easier to flow. The low-viscosity engine oil can reach all lubricated components faster when the engine starts, thereby reducing the frictional resistance during the startup of each component. This makes the engine easier to rotate, thereby increasing the startup success rate. In addition, by preheating the engine oil, the engine can reach the temperature for efficient combustion faster, reducing the generation of emissions.

[0068] Continue to refer to Figure 2 As shown in the figure, the heating structure 10 further includes a temperature sensor 500 and a controller 300 that are electrically connected. The temperature sensor 500 is disposed on the oil sump 600 or the circulating pipeline 110 and is used to obtain the temperature signal of the oil sump 600 or the circulating pipeline 110. The heating module 200 is connected to the controller 300, and the controller 300 is used to receive the temperature signal and send a working signal related to the temperature signal to the heating module 200. It should be noted that the connection between the heating module 200 and the controller 300 can be either a direct electrical connection or a communication connection, and this application does not make any restrictions.

[0069] The specific opening and closing temperatures can be set according to the specific vehicle model. For example, when the transmission temperature of the temperature sensor 500 is below -10°C, the controller 300 controls the heating module 200 to turn on, and when the transmission temperature of the temperature sensor 500 is above 20°C, the controller 300 controls the heating module 200 to turn off.

[0070] Based on the above settings, the heating of the heating module 200 can be controlled according to the actual situation. On the one hand, it can achieve the purpose of preheating the engine oil in the oil sump 600, and on the other hand, it can also save the energy consumption of the heating module 200.

[0071] In this embodiment, continue to refer to Figure 1 and Figure 2 As shown, the heating structure 10 further includes a water pressure sensor 400 and a driving pump 120. The driving pump 120 is disposed on the circulation pipeline 110 and is used to drive the liquid flow in the circulation pipeline 110. The water pressure sensor 400 is used to obtain the water pressure signal of the circulation pipeline 110. Both the water pressure sensor 400 and the driving pump 120 are disposed on the circulation pipeline 110. The driving pump 120 is connected to the controller 300. The controller 300 is used to receive the water pressure signal and send a working signal related to the water pressure signal to the driving pump 120. Similarly, the connection between the driving pump 120 and the controller 300 can be a direct electrical connection or a communication connection, which is not limited in this application.

[0072] Based on the above settings, it is possible to judge whether there is liquid leakage or other situations according to the value of the water pressure sensor 400, so as to facilitate timely discovery and timely maintenance. And it can work together with the temperature signal of the temperature sensor 500. For example, when the transmitted temperature of the temperature sensor 500 is below -10°C, a high water pressure signal can be sent to the driving pump 120 to make the liquid in the circulation pipeline 110 flow faster to transfer more heat. At this time, the water pressure sensor 400 is used to judge the actual flow rate. When the transmitted temperature of the temperature sensor 500 is above 0°C, a low water pressure signal can be sent to the driving pump 120 to make the liquid in the circulation pipeline 110 flow slower, thereby slowing down the heat transfer.

[0073] In one embodiment, the heating module 200 is connected to a fuel tank (not shown in the figure), and the heating module 200 includes an ignition part (not shown in the figure) and a pump device (not shown in the figure). The pump device is used to pump out the fuel in the fuel tank, and the ignition part is used to ignite the fuel. Wherein, after the pump device pumps out the fuel in the fuel tank, the ignition part burns the fuel in the fuel tank to generate heat to heat the liquid in the circulation pipeline 110. It should be noted that the fuel here can be methanol or oil, or other combustible liquids, which is not limited in this application.

[0074] Based on the above settings, in this embodiment, the fuel in the vehicle fuel tank is supplied to the ignition part of the heating module 200 to be ignited. Therefore, the preheating function can be achieved without relying on other energy sources outside the vehicle. That is, only the vehicle itself can complete the preheating process, avoiding additional other components or energy devices.

[0075] Refer to Figure 1 and Figure 5As shown, the heat exchange tube part 111 includes a plurality of accommodating parts 111A and a plurality of connecting parts 111B. Every two accommodating parts 111A are connected and arranged through a connecting part 111B, and the accommodating parts 111A are arranged at intervals. In Figure 5 it, the accommodating part 111A is arranged in a straight line, and the connecting part 111B is arranged in an arc.

[0076] Based on the above settings, a plurality of accommodating parts 111A and a plurality of connecting parts 111B are connected into a coiled tube shape, and the accommodating parts 111A are arranged at intervals. Such a setting can enable the heat exchange tube part 111 to better contact the liquid, so as to better perform heat exchange.

[0077] When the distance between the accommodating parts 111A is too small, the heat exchange tube part 111 will occupy too much space in the oil shell 600. When the distance between the accommodating parts 111A is too large, the heat exchange tube part 111 and the liquid do not contact sufficiently. In this embodiment, the minimum distance between the accommodating parts 111A is set to be greater than or equal to 20 mm and less than or equal to 60 mm. Within this range, on the one hand, it can make the space occupied by the heat exchange tube part 111 in the oil shell 600 appropriate, and on the other hand, it can make the heat exchange tube part 111 and the liquid contact sufficiently. For example, the minimum distance between the accommodating parts 111A can be 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, 55 mm, 60 mm.

[0078] In one embodiment, referring to Figure 4 and Figure 5 as shown, the oil shell 600 includes a connected first shell unit 610 and a second shell unit 620. A first space unit 611 for accommodating engine oil is arranged in the first shell unit 610, and a second space unit 621 for accommodating engine oil is arranged in the second shell unit 620. The depth of the first space unit 611 is less than the depth of the second space unit 621, and the bottom of the second space unit 621 is lower than the bottom of the first space unit 611. That is, referring to Figure 4 as shown, a part of the second space unit 621 is lower than the first space unit 611. Among them, at least part of the heat exchange tube part 111 is arranged at the bottom of the second space unit 621.

[0079] Based on the above settings, since a part of the second space unit 621 is lower than the first space unit 611, when the amount of engine oil in the oil pan 600 decreases, the remaining engine oil will flow into the second space unit 621. That is, unless a major oil leakage accident occurs, there will always be engine oil at the bottom of the second space unit 621 in the oil pan 600. At this time, putting at least part of the heat exchange tube portion 111 into the bottom of the second space unit 621 means that under normal circumstances, the heat exchange tube portion 111 will always be in contact with the engine oil in the oil pan 600 to provide sufficient heat exchange. Furthermore, the vehicle preheating system can be kept running to the maximum extent.

[0080] When driving a vehicle, the vehicle itself will vibrate. Especially when driving on a bumpy road, at this time, the engine oil located in the oil pan 600 will continuously impact the heat exchange tube portion 111 in the oil pan 600, which will easily cause deformation or stress concentration. Especially at the place where the heat exchange tube portion 111 enters the oil pan 600, stress concentration is likely to occur and it will be damaged. To avoid damage to the heat exchange tube portion 111, the applicant made the following design. Refer to Figure 5 As shown, in this embodiment, the heat exchange tube portion 111 is fixed to the bottom surface and / or side surface of the second housing unit 620.

[0081] The heat exchange tube portion 111 is fixed to the bottom surface and / or side surface of the second housing unit 620, which can guide the impact force to the oil pan 600 itself when the engine oil impacts the heat exchange tube portion 111. Thereby reducing the stress concentration on the heat exchange tube portion 111 itself and making it more durable.

[0082] In one embodiment, refer to Figure 5 As shown, the oil pan 600 includes an inner wall surface, and the inner wall surface encloses an oil storage space 630 for accommodating engine oil. A fixing groove 631 is provided on the inner wall surface, and at least part of the heat exchange tube portion 111 is located in the fixing groove 631.

[0083] It should be noted that at this time, the fixing groove 631 can be formed by extending outward from the inner wall surface or by being recessed inward from the inner wall surface. When the fixing groove 631 is formed by extending outward from the inner wall surface, on the one hand, the fixing groove 631 can fix the heat exchange tube portion 111 on the inner wall surface, and on the other hand, it can also help the heat exchange tube portion 111 block part of the impact from the engine oil. When the fixing groove 631 is formed by being recessed inward from the inner wall surface, on the one hand, the fixing groove 631 can also fix the heat exchange tube portion 111 on the inner wall surface. On the other hand, since the fixing groove 631 is recessed inward from the inner wall surface, at least part of the heat exchange tube portion 111 will be embedded in the inner wall surface, and thus the heat exchange tube portion 111 located in the second space unit 621 will be less. Therefore, the contact surface between the heat exchange tube portion 111 and the engine oil is reduced, and thus the impact of the engine oil on the heat exchange tube portion 111 is also reduced.

[0084] When the heat exchange pipe portion 111 is damaged, the liquid inside the heat exchange pipe portion 111 will be mixed with the engine oil, which will cause damage to the engine oil system and the vehicle preheating system due to the mixed liquid. In this embodiment, the oil sump 600 is provided with a heat exchange unit (not shown in the figure), and the heat exchange unit includes a heat exchange space (not shown in the figure). The heat exchange pipe portion 111 is disposed in the heat exchange space. The oil sump 600 includes an oil storage space 630 for containing engine oil. The heat exchange space is at least partially located in the oil storage space 630 and is isolated from the oil storage space 630. That is, the heat exchange unit is wrapped around the outer periphery of the heat exchange pipe portion 111 to prevent the heat exchange pipe portion 111 from directly contacting the engine oil. It should be noted that the heat exchange unit here can be made of a metal with good thermal conductivity to obtain better heat conduction.

[0085] Based on the above settings, that is, the heat exchange pipe portion 111 is arranged in the heat exchange unit, and then the heat exchange unit is arranged in the oil storage space 630 of the oil sump 600. The heat exchange process is as follows: First, the heat of the heat exchange pipe portion 111 is conducted to the heat exchange unit, and then the heat is conducted to the engine oil in the oil storage space 630 through the heat exchange unit to achieve the purpose of heating the engine oil.

[0086] The advantage of setting the heat exchange unit here is that the heat exchange pipe portion 111 does not directly contact the engine oil in the oil storage space 630. That is, when the heat exchange pipe portion 111 is damaged, the liquid inside the heat exchange pipe portion 111 will not be mixed with the engine oil. Thus, the mixing of the engine oil and the liquid inside the heat exchange pipe portion 111 is avoided, and the damage to the engine oil system and the vehicle preheating system is also avoided.

[0087] With the increasing attention of people to fuel shortage and air pollution, many traditional automobile manufacturers have vigorously developed new energy vehicles. However, with the transformation and upgrading of the automobile industry from high-speed development to high-quality development, new energy vehicles are also facing policy and technical problems such as high cost of power batteries, slow charging time, short vehicle endurance time, and insufficient safety and reliability. Therefore, using methanol fuel to reduce the dependence of traditional internal combustion engines on fossil fuels has become a new development trend. Since the boiling point of methanol (338K) is higher than the initial boiling point of gasoline (about 313K), and it has the properties of low vapor pressure and high latent heat of vaporization, it directly leads to the concentration of the methanol mixture in the main combustion chamber not reaching the ignition requirement of the engine block 800, which directly results in difficult cold start of the methanol engine block in a low-temperature environment, and even the situation of unable to ignite and start. Similarly, in an ultra-low temperature environment, traditional gasoline vehicles will also have problems such as difficult starting or incomplete combustion due to low temperature.

[0088] In one embodiment, refer to Figure 3As shown, the above vehicle preheating system may further include an engine block 800. The heat exchange pipe portion 111 is cooperatively arranged with the engine block 800 for heat exchange with the engine block 800. It should be noted that the engine block 800 here is the outer shell of the vehicle engine, especially the outer shell surrounding the main combustion chamber. The cooperative arrangement of the above heat exchange pipeline and the engine block 800 can be to surround the heat exchange pipe portion 111 outside the engine block 800 to transfer heat, or to directly use the coolant passage inside the engine block 800 as the heat exchange pipe portion 111 and transfer heat through the coolant passage. It should be noted that the vehicle preheating system described in this embodiment is not limited to being applied to vehicles using methanol fuel or gasoline fuel. As long as it has an engine block 800, it should be within the protection scope of this application.

[0089] Based on the above settings, the vehicle preheating system can heat the temperature of the main combustion chamber to a temperature suitable for the ignition of methanol or other fuels through the heating structure 10, so that it can be normally ignited and started. And combined with the cooperation between the oil sump 600 and the heating structure 10, the viscosity of the engine oil in the oil sump 600 is reduced at this time, further reducing the difficulty of engine starting.

[0090] In this embodiment, after the liquid in the circulation pipeline 110 is heated by the heating module 200, it first exchanges heat with the engine block 800 and then exchanges heat with the oil sump 600. That is, the heat of the circulation pipeline 110 is preferentially supplied to the engine block 800 and then to the oil sump 600. Because after the temperature of the engine block 800 reaches the temperature that can be ignited, a large amount of heat will be generated by the engine itself after starting and transmitted to the engine oil in the oil sump 600 through components such as the crankshaft, connecting rod bearings, piston pins, cylinder walls, and camshafts, reducing its viscosity. Therefore, in this embodiment, the engine block 800 is given the first priority for heat transfer to ensure its heat supply first.

[0091] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without conflict. The protection scope of this application is not limited to the precise structures described in the above embodiments and shown in the drawings; all modifications, equivalent replacements, improvements, etc. made within the spirit and principle of this application should be included within the protection scope of this application.

Claims

1. A heating structure for heating engine oil in an oil sump, characterized in that, The heating structure includes: A hydraulic module, the hydraulic module including a circulation pipeline; A heating module, the heating module being arranged in cooperation with the circulation pipeline; Wherein, the circulation pipeline includes a heat exchange pipe portion for cooperating with the oil sump.

2. The heating structure according to claim 1, wherein The heating structure further includes a temperature sensor and a controller which are electrically connected. The temperature sensor is arranged on the oil sump or the circulation pipeline for acquiring the temperature signal of the oil sump or the circulation pipeline; The heating module is connected to the controller. The controller is used for receiving the temperature signal and for sending a working signal related to the temperature signal to the heating module.

3. The heating structure according to claim 2, wherein The heating structure further includes a water pressure sensor and a driving pump. The driving pump is arranged on the circulation pipeline for driving the liquid in the circulation pipeline to flow. The water pressure sensor is used for acquiring the water pressure signal of the circulation pipeline. Both the water pressure sensor and the driving pump are arranged on the circulation pipeline; The driving pump is connected to the controller. The controller is used for receiving the water pressure signal and for sending a working signal related to the water pressure signal to the driving pump.

4. The heating structure according to claim 1, wherein, The heat exchange pipe portion includes a plurality of accommodating portions and a plurality of connecting portions. Every two of the accommodating portions are connected by one of the connecting portions. The accommodating portions are arranged at intervals, and the minimum distance between the accommodating portions is greater than or equal to 20 mm and less than or equal to 60 mm.

5. The heating structure according to claim 1, wherein The heating module communicates with the fuel tank, and the heating module includes an ignition portion and a pump device. The pump device is used for pumping out the fuel in the fuel tank, and the ignition portion is used for igniting the fuel; Wherein, after the pump device pumps out the fuel in the fuel tank, the ignition portion burns and heats the fuel in the fuel tank to heat the liquid in the circulation pipeline.

6. A vehicle preheating system, characterized in that, The vehicle preheating system includes an oil sump and the heating structure according to any one of claims 1-5; The heating structure is arranged in cooperation with the oil sump.

7. The vehicle preheating system according to claim 6, wherein The oil sump includes a first shell unit and a second shell unit which are connected. A first space unit for accommodating engine oil is arranged in the first shell unit. A second space unit for accommodating engine oil is arranged in the second shell unit. The depth of the first space unit is less than the depth of the second space unit, and moreover, the bottom of the second space unit is lower than the bottom of the first space unit; At least part of the heat exchange pipe portion is arranged at the bottom of the second space unit.

8. The vehicle preheating system according to claim 7, wherein, The heat exchange pipe portion is fixed on the bottom surface and / or the side surface of the second shell unit.

9. The vehicle preheating system according to claim 6, characterized in that, The oil sump includes an inner wall surface, and the inner wall surface encloses an oil storage space for accommodating engine oil; A fixing groove is arranged on the inner wall surface, and at least part of the heat exchange pipe portion is located in the fixing groove.

10. The vehicle preheating system according to claim 6, wherein, The oil sump further includes a heat exchange unit, and the heat exchange unit includes a heat exchange space. The heat exchange pipe portion is arranged in the heat exchange space. The oil sump includes an oil storage space for accommodating engine oil. The heat exchange space is at least partly located in the oil storage space and is arranged in isolation from the oil storage space.

11. The vehicle preheating system according to claim 6, characterized in that, The vehicle preheating system further includes an engine block, and the heat exchange pipe portion is cooperatively arranged with the engine block for performing heat exchange with the engine block.

12. The vehicle preheating system according to claim 11, wherein, The vehicle preheating system further includes a driving pump, the driving pump drives the liquid in the circulation pipeline to flow, and after the liquid in the circulation pipeline is heated by the heating module, it first exchanges heat with the engine block and then exchanges heat with the oil pan.

13. A vehicle, characterized in that, The vehicle includes the vehicle preheating system according to any one of claims 6-12.

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