Range extender and vehicle

Abstract

The utility model belongs to the technical field of automobiles, and particularly relates to a range extender and a vehicle. The end cover is provided with a first channel and a second channel, the first channel is used for conveying cooling oil, and the second channel is used for conveying cooling liquid; the oil cooler is arranged on the end cover and communicates with the first channel and the second channel so as to conduct heat exchange on cooling oil conveyed by the first channel and cooling liquid conveyed by the second channel. The generator control unit is installed on the end cover, and the cooling liquid conveyed by the second channel is used for cooling the generator control unit. The generator control unit is integrally installed on the end cover, and the generator control unit is cooled through the cooling liquid conveyed by the second channel, so that the integration level of the range extender is improved. Meanwhile, the oil cooler is arranged on the end cover and communicated with the first channel and the second channel, so that cooling oil conveyed by the first channel and cooling liquid conveyed by the second channel are subjected to heat exchange in the oil cooler, and the cooling efficiency of the range extender is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of automobiles, and particularly relates to a range extender and a vehicle. BACKGROUND

[0002] In the range extender, a generator control unit (GCU) in a generator is generally designed independently. In order to ensure the normal operation of the generator control unit, the generator control unit needs to be equipped with an independent cooling system, so that the generator control unit and the independent cooling system occupy a larger space, affecting the improvement of the integration of the range extender as a whole. At the same time, the existing range extender generally cools the generator by using cooling oil, and this cooling method is relatively single. CONTENT OF THE UTILITY MODEL

[0003] One of the purposes of the present application is to provide a range extender, which integrates a generator control unit on an end cover, and uses cooling liquid flowing in the end cover to cool the generator control unit, and simultaneously uses an oil cooler to realize heat exchange between the cooling oil and the cooling liquid, so as to improve the integration of the range extender and optimize the cooling effect.

[0004] Another purpose of the present application is to provide a vehicle, wherein the vehicle comprises the range extender described above.

[0005] According to the embodiments of the present application, the first aspect provides a range extender, which comprises:

[0006] an end cover, wherein a first channel and a second channel are arranged on the end cover, the first channel is used for conveying cooling oil, and the second channel is used for conveying cooling liquid;

[0007] an oil cooler, which is arranged on the end cover and is in communication with the first channel and the second channel respectively, so as to realize heat exchange between the cooling oil conveyed by the first channel and the cooling liquid conveyed by the second channel;

[0008] a generator control unit, which is arranged on the end cover, and the cooling liquid conveyed by the second channel is used for cooling the generator control unit.

[0009] In an embodiment, the generator control unit is arranged downstream of the oil cooler.

[0010] In an embodiment, the generator control unit is connected to the end cover by screw threads.

[0011] In an embodiment, the range extender further comprises an oil pan, which is arranged at the lower end of the range extender and is used for storing the cooling oil, and the oil pan is in communication with the oil cooler.

[0012] In an embodiment, a filter is further arranged between the oil pan and the oil cooler.

[0013] In an embodiment, the range extender further comprises an oil pump, the engine in the range extender drives the oil pump to work, and the oil pump is used to deliver the cooling oil to the oil cooler.

[0014] In an embodiment, the range extender further comprises a housing, the housing is arranged at one end of a cylinder block of the engine, the housing is internally provided with a stator and a rotor, and the cooling oil delivered by the first channel is used to cool the stator and the rotor.

[0015] In an embodiment, the first channel comprises a first branch channel and a second branch channel, the first branch channel is used to deliver the cooling oil to the stator, the housing is provided with a third channel, the third channel communicates with the second branch channel, and the third channel is used to deliver the cooling oil to the rotor.

[0016] In an embodiment, the housing is integrally formed with the cylinder block.

[0017] According to the embodiments of the present application, the second aspect provides a vehicle, which comprises the range extender.

[0018] In the range extender provided by the present application, the end cover is provided with a first channel and a second channel, the first channel is used to deliver the cooling oil, and the second channel is used to deliver the cooling liquid. The generator control unit is integrally installed on the end cover, and the generator control unit is cooled by the cooling liquid delivered through the second channel, so as to improve the integration of the range extender. Meanwhile, the oil cooler is arranged on the end cover and communicates with the first channel and the second channel respectively, so that the cooling oil delivered by the first channel and the cooling liquid delivered by the second channel exchange heat inside the oil cooler, thereby improving the cooling and temperature reduction efficiency of the range extender. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 FIG. 1 is a structural schematic diagram of the range extender in an embodiment of the present application;

[0020] Figure 2 FIG. 2 is a flow direction schematic diagram of the cooling oil and the cooling liquid in an embodiment of the present application;

[0021] Figure 3 FIG. 3 is a sectional schematic diagram of the range extender in an embodiment of the present application;

[0022] Figure 4 FIG. 4 is a flow direction schematic diagram of the cooling oil and the cooling liquid in another embodiment of the present application;

[0023] DETAILED DESCRIPTION

[0024] 100, end cover; 110, first channel; 111, first branch channel;

[0025] 112, second branch passage; 120, second passage;

[0026] 200, oil cooler; 300, generator control unit; 400, oil pan; 500, filter; 600, oil pump; 700, housing; 710, stator; 720, rotor. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and not to limit the present application.

[0028] It should be noted that the diagrams provided in the embodiments only schematically illustrate the basic concept of the present application.

[0029] The structure, ratio, size, etc. shown in the drawings attached to the present specification are only used to cooperate with the content disclosed in the specification, so that those skilled in the art can understand and read, and are not used to limit the limiting conditions that the present application can be implemented. Any modification of structure, change of ratio relationship or adjustment of size, which does not affect the functions and purposes that the present application can produce, should still fall within the scope of the technical content disclosed by the present application.

[0030] The orientations or positional relationships indicated by the terms such as "upper", "lower", "left", "right", "intermediate", "vertical", "horizontal", "horizontal", "inner", "outer", "radial", "circumferential" and the like as used in this specification are based on the orientations or positional relationships shown in the drawings, and are only used to facilitate the description, and cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation. Therefore, it cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.

[0031] As described in the background, in the range extender, the generator control unit (GCU) in the generator is generally designed independently. In order to ensure the normal operation of the generator control unit, the generator control unit needs to be equipped with an independent cooling system, so that the generator control unit and the independent cooling system occupy a larger space, affecting the improvement of the integration of the range extender as a whole. At the same time, the existing range extender generally cools the generator by cooling oil. This cooling method is relatively single. In order to better solve this problem, the researchers in the present application propose a range extender, which integrates the generator control unit on the end cover, and uses the cooling liquid flowing in the end cover to cool it. At the same time, the heat exchange between the cooling oil and the cooling liquid is realized through the oil cooler, so as to improve the integration of the range extender and optimize the cooling effect.

[0032] As Figure 1 shown, Figure 1 is a structural schematic diagram of the range extender in an embodiment of the present application. Figure 2 is a flow direction schematic diagram of the cooling oil and the cooling liquid in an embodiment of the present application. The range extender comprises an end cover 100, by setting a first channel 110 and a second channel 120 in the end cover 100, and setting the generator control unit 300 and the oil cooler 200 integrated in the end cover 100, through this arrangement, on the one hand, the cooling liquid passing through the second channel 120 can cool the generator control unit 300, thereby improving the integration of the range extender; on the other hand, the cooling oil in the first channel 110 and the cooling liquid in the second channel 120 can exchange heat in the oil cooler 200, thereby absorbing the temperature of the cooling oil by the cooling liquid, to further improve the cooling effect of the range extender.

[0033] Specifically, the end cover 100 is provided with the first channel 110 and the second channel 120, the first channel 110 is used for conveying the cooling oil, and the second channel 120 is used for conveying the cooling liquid; the oil cooler 200 is arranged on the end cover 100, and the oil cooler 200 is in communication with the first channel 110 and the second channel 120, respectively, so that the cooling oil conveyed by the first channel 110 and the cooling liquid conveyed by the second channel 120 exchange heat; the generator control unit 300 is installed on the end cover 100, and the cooling liquid conveyed by the second channel 120 is used to cool the generator control unit 300.

[0034] In the embodiment, the end cover 100 is provided with the first channel 110 and the second channel 120, wherein the first channel 110 is used for conveying the cooling oil to cool the generator, and the second channel 120 is used for conveying the cooling liquid to cool the generator control unit 300. Specifically, the first channel 110 is used for the cooling oil of the generator to flow, to realize the cooling function of the generator, and the second channel 120 can be in communication with the cooling system of the whole vehicle, so that the cooling liquid in the cooling system of the whole vehicle is conveyed through the second channel 120 to cool the generator control unit 300.

[0035] The generator control unit 300 is integrated and installed on the end cover 100, for example, can be arranged on the end cover 100 through a threaded connection, and is cooled by the cooling liquid conveyed through the second channel 120, thereby reducing the configuration requirement of the independent cooling system of the generator control unit 300, and improving the structural integration of the range extender.

[0036] In addition, the oil cooler 200 is arranged on the end cover 100 and is in communication with the first channel 110 and the second channel 120, respectively, so that the cooling oil conveyed by the first channel 110 and the cooling liquid conveyed by the second channel 120 exchange heat inside the oil cooler 200, and the cooled cooling oil is conveyed to the generator for cooling, for example, through the first channel 110, thereby improving the cooling effect of the range extender.

[0037] In an embodiment, referring to Figure 2 The generator control unit 300 is arranged downstream of the oil cooler 200.

[0038] In this embodiment, the generator control unit 300 is arranged downstream of the oil cooler 200, so that the coolant flowing through the second passage 120 first flows through the oil cooler 200 and exchanges heat with the cooling oil flowing out of the first passage 110. In the oil cooler 200, the coolant absorbs the heat of the cooling oil, causing the temperature of the cooling oil to decrease, thereby enhancing the cooling capacity of the cooling oil for absorbing heat from the generator. The heated coolant continues to flow to the generator control unit 300 and absorbs the heat generated by the generator control unit 300. This arrangement, through the heat exchange effect of the oil cooler 200, not only reduces the temperature of the cooling oil to improve the cooling efficiency of the generator, but also uses the heated coolant to cool the generator control unit 300 again, thereby improving the cooling effect of the range extender.

[0039] In an embodiment, referring to Figure 3 and Figure 4 The range extender further comprises an oil pan 400, which is arranged at the lower end of the range extender and is used to store the cooling oil. The oil pan 400 is in communication with the oil cooler 200.

[0040] In this embodiment, the oil pan 400 is arranged at the lower end of the range extender and is used to store the cooling oil. The oil pan 400 is in communication with the oil cooler 200, so that the cooling oil stored in the oil pan 400 can be transported to the oil cooler 200 and exchange heat with the coolant in the oil cooler 200, thereby reducing the temperature of the cooling oil and enhancing the cooling capacity of the cooling oil for the generator. The oil pan 400 is arranged at the lower end of the range extender, so that the cooling oil can flow back to the oil pan 400 by gravity after completing the circulation, thereby reducing the additional pumping energy consumption and improving the circulation efficiency of the cooling oil.

[0041] In an embodiment, referring to Figure 3 and Figure 4 A filter 500 is further arranged between the oil pan 400 and the oil cooler 200.

[0042] In this embodiment, the filter 500 is arranged between the oil pan 400 and the oil cooler 200, and is used to intercept solid impurities in the cooling oil. The filter 500 is arranged in the oil passage between the oil pan 400 and the oil cooler 200, so that the cooling oil flowing from the oil pan 400 to the oil cooler 200 is subjected to filtration. The filtered cooling oil enters the oil cooler 200 for heat exchange, avoiding the solid impurities from entering the interior of the oil cooler 200 and causing blockage or affecting the heat exchange efficiency.

[0043] In an embodiment, referring toFigure 3 and Figure 4 As shown, the range extender also includes an oil pump 600, which is driven by the engine in the range extender and is used to deliver cooling oil to the oil cooler 200.

[0044] In this embodiment, the oil pump 600 is driven by the engine in the range extender. The engine's mechanical energy drives the oil pump 600 to deliver the cooling oil. The oil pump 600 delivers the cooling oil stored in the oil pan 400 to the oil cooler 200, where it exchanges heat with the coolant to reduce the temperature of the cooling oil and thus enhance its cooling capacity for the generator.

[0045] In one embodiment, see Figure 3 As shown, the range extender also includes a housing 700, in which a stator 710 and a rotor 720 are disposed. The housing 700 is disposed at one end of the cylinder block of the engine. The housing 700 can be disposed at one end of the cylinder block by means of threaded connection or integral molding. The cooling oil delivered by the first channel 110 is used to cool the stator 710 and the rotor 720.

[0046] In this embodiment, a housing 700 is disposed at one end of the engine cylinder block, and a stator 710 and a rotor 720 are housed within the housing 700. Cooling oil supplied by the first channel 110 flows through the interior of the housing 700, simultaneously cooling the stator 710 and the rotor 720. The cooling oil absorbs and carries away the heat generated by the stator 710 and rotor 720 by directly contacting the heat-generating components of the stator 710 and rotor 720. This cooling method achieves synchronous cooling of the stator 710 and rotor 720 inside the generator, improving the generator's heat dissipation efficiency.

[0047] Furthermore, in one embodiment, see [reference] Figure 4 As shown, the first channel 110 includes a first branch channel 111 and a second branch channel 112. The first branch channel 111 is used to deliver cooling oil to the stator 710. The housing 700 is provided with a third channel, which is connected to the second branch channel 112. The third channel is used to deliver cooling oil to the rotor 720.

[0048] In the embodiment, the first channel 110 includes a first branch channel 111 and a second branch channel 112, wherein the first branch channel 111 is configured to deliver cooling oil to the stator 710 to cool the stator 710. The housing 700 is provided with a third channel, which is in communication with the second branch channel 112, and the cooling oil delivered by the second branch channel 112 flows to the rotor 720 through the third channel to cool the rotor 720. Through the branch design of the first channel 110, the cooling oil is delivered to the stator 710 and the rotor 720 respectively, so that the stator 710 and the rotor 720 are independently cooled, and the coverage and cooling effect of the cooling system are improved.

[0049] In an embodiment, the housing 700 is integrally formed with the cylinder block.

[0050] In the embodiment, the housing 700 and the cylinder block are integrally formed, for example, by a casting process, so that the assembly process between the housing 700 and the cylinder block is effectively avoided. In the prior art, the cylinder block and the housing 700 are generally designed in a split type and connected by assembly, which increases the assembly process and reduces the installation efficiency. In the embodiment, the housing 700 and the cylinder block are integrally formed, so that the assembly process of the split type is reduced.

[0051] The application also provides a vehicle, wherein the vehicle comprises the above-mentioned range extender.

[0052] In the embodiment, the vehicle comprises the range extender, which delivers cooling oil and cooling liquid through the first channel 110 and the second channel 120 on the end cover 100 to cool the generator and the generator control unit 300. The generator control unit 300 is integrally installed on the end cover 100 and cooled by the cooling liquid, which reduces the arrangement requirement of the independent cooling system and improves the integration of the range extender. The oil cooler 200 is arranged on the end cover 100 and in communication with the first channel 110 and the second channel 120, so that the cooling oil and the cooling liquid are heat exchanged to improve the cooling efficiency and thermal management performance of the range extender.

[0053] Any combination of the technical features in the above embodiments can be made. To make the description concise, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combination of the technical features does not exist, it should be considered as the scope of the present application.

[0054] The above embodiments only express several implementation manners of the application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the utility model patent. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the application, a number of modifications and improvements can be made, which all belong to the protection scope of the application. Therefore, the protection scope of the patent of the application should be subject to the appended claims.

Claims

1. A range extender, characterized in that, The range extender includes: An end cap (100) is provided with a first channel (110) and a second channel (120), wherein the first channel (110) is used to transport cooling oil and the second channel (120) is used to transport coolant. An oil cooler (200) is disposed on the end cap (100). The oil cooler (200) is connected to the first channel (110) and the second channel (120) respectively to exchange heat between the cooling oil delivered in the first channel (110) and the coolant delivered in the second channel (120). A generator control unit (300) is mounted on the end cap (100), and the coolant delivered through the second channel (120) is used to cool the generator control unit (300).

2. The range extender according to claim 1, characterized in that, The generator control unit (300) is located downstream of the oil cooler (200).

3. The range extender according to claim 1, characterized in that, The generator control unit (300) is connected to the end cap (100) by a thread.

4. The range extender according to claim 1, characterized in that, The range extender also includes an oil pan (400), which is located at the lower end of the range extender. The oil pan (400) is used to store the cooling oil and is connected to the oil cooler (200).

5. The range extender according to claim 4, characterized in that, A filter (500) is also provided between the oil pan (400) and the oil cooler (200).

6. The range extender according to claim 4, characterized in that, The range extender also includes an oil pump (600), which is driven by the engine in the range extender and is used to deliver the cooling oil to the oil cooler (200).

7. The range extender according to claim 1, characterized in that, The range extender also includes a housing (700) disposed at one end of the cylinder block of the engine. A stator (710) and a rotor (720) are disposed inside the housing (700). Cooling oil delivered by the first channel (110) is used to cool the stator (710) and the rotor (720).

8. The range extender according to claim 7, characterized in that, The first channel (110) includes a first branch channel (111) and a second branch channel (112). The first branch channel (111) is used to deliver cooling oil to the stator (710). The housing (700) is provided with a third channel, which is connected to the second branch channel (112) and is used to deliver the cooling oil to the rotor (720).

9. The range extender according to claim 7, characterized in that, The housing (700) is integrally formed with the cylinder block.

10. A vehicle, characterized in that, The vehicle includes a range extender as described in any one of claims 1 to 9.

Images