Cylinder body, range extender and vehicle

Abstract

The utility model belongs to the technical field of automobiles, and particularly relates to an air cylinder body, a range extender and a vehicle. The cylinder block includes: a body; the shell and the end face of the body are integrally formed, a shell oil way channel is arranged in the shell, and an inlet of the shell oil way channel is configured to be communicated with a cooling module in an engine; the stator is fixed in an inner cavity of the shell, a stator oil way channel is integrated in the stator, an inlet of the stator oil way channel is communicated with the shell oil way channel, and the shell oil way channel is configured to convey cooling liquid into the stator oil way channel. And the shell is directly integrated at the end part of the body for mounting the stator, so that the problems of complicated assembly process and independent configuration of a cooling system caused by split assembly of the cylinder body and the generator shell in the existing scheme are effectively avoided. Meanwhile, the shell oil way channel is arranged in the shell, the stator oil way channel is arranged in the stator, the cooling liquid can be conveyed to the stator oil way channel through the shell oil way channel, and therefore the purpose that the cooling liquid provided by the engine cooling module is used for cooling the stator is achieved.

Description

TECHNICAL FIELD

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

[0002] The existing engine cylinder block and generator shell adopt a split structure, and the generator is connected with the cylinder block through press fitting or bolt fixing after assembly. The split assembly method leads to a complex assembly process, increases assembly time, and requires independent cooling systems for the cylinder block and the generator stator, which is not conducive to improving system integration. CONTENT OF THE UTILITY MODEL

[0003] One of the application purposes is to provide a cylinder block to solve the problem of split assembly of the cylinder block and the generator, and to cool the stator by using the cooling liquid delivered by the engine cooling module.

[0004] Another application purpose of the application is to provide a range extender, which comprises the above-mentioned cylinder block.

[0005] Still another application purpose of the application is to provide a vehicle, which comprises the above-mentioned range extender.

[0006] According to the embodiments of the application, a first aspect provides a cylinder block, which comprises:

[0007] a body;

[0008] a shell, which is integrally formed with an end face of the body, and is provided with a shell oil passage in the shell, an inlet of the shell oil passage being configured to communicate with a cooling module in an engine;

[0009] a stator, which is fixed in an inner cavity of the shell, and is internally integrated with a stator oil passage, an inlet of the stator oil passage communicating with the shell oil passage, and the shell oil passage being configured to deliver cooling liquid into the stator oil passage.

[0010] In an embodiment, the inlet of the stator oil passage is arranged on a side wall of the stator, and the shell oil passage comprises a first branch passage, an outlet of the first branch passage corresponding to and communicating with the inlet of the stator oil passage.

[0011] In an embodiment, the shell oil passage further comprises a second branch passage, and an outlet of the second branch passage is directed to the side wall of the stator.

[0012] In an embodiment, the inlet of the stator oil passage is located on the side wall of the stator and close to one side of an end portion of the stator.

[0013] In one embodiment, the housing oil passage further includes a third branch passage, which is connected to the first branch passage and the second branch passage respectively.

[0014] In one embodiment, the number of the third branch channels is not less than two, the number of the first branch channels is the same as the number of the second branch channels, and the number of inlets of the stator oil circuit channels is the same as the number of the first branch channels and they are connected one-to-one.

[0015] In one embodiment, the third branch channel extends in a direction parallel to the axis of the stator; and / or, the distance between the inner wall of the third branch channel and the outer wall of the housing is not less than 3 mm.

[0016] In one embodiment, the cylinder body is further provided with an end cap, the end cap being sealed to the open end of the housing, the end cap being provided with a fourth branch channel, the fourth branch channel extending from the lower end of the end cap to the upper end of the end cap and communicating with the third branch channel.

[0017] According to an embodiment of this application, a second aspect provides a range extender, the range extender including the aforementioned cylinder block.

[0018] According to an embodiment of this application, a third aspect provides a vehicle that includes the range extender described above.

[0019] The cylinder block in this application integrates a housing directly at the end for stator mounting, effectively avoiding the complex assembly process and independent cooling system configuration issues caused by the separate assembly of the cylinder block and generator housing in existing solutions. Simultaneously, a housing oil passage is provided in the housing, and a stator oil passage is provided in the stator, allowing coolant to be transported from the housing oil passage to the stator oil passage, thereby utilizing the coolant provided by the engine cooling module to cool the stator. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the cylinder block structure in one embodiment of this application;

[0021] Figure 2 This is a schematic cross-sectional view of the cylinder block in one embodiment of this application;

[0022] Figure 3 This is a side view of the cylinder block in one embodiment of this application;

[0023] Figure 4 for Figure 3 Schematic diagram of the cross-section at point AA;

[0024] Figure 5 This is a schematic diagram of the stator structure in one embodiment of this application;

[0025] Figure 6 Figure 1 is a side view of a cylinder block according to an embodiment of the present application.

[0026] Brief Description of the Drawings

[0027] 100, body;

[0028] 200, housing; 210, housing oil passage; 211, first branch passage;

[0029] 212, second branch passage; 213, third branch passage;

[0030] 300, stator; 310, stator oil passage;

[0031] 400, end cover; 410, fourth branch passage. DETAILED DESCRIPTION

[0032] 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 embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0033] It should be noted that the diagrams provided in the embodiments only schematically illustrate the basic concept of the present application.

[0034] The structures, proportions, sizes, etc. shown in the drawings attached to the present specification are only used to cooperate with the content disclosed in the present specification, so as to be understood and read by those skilled in the art, and are not used to limit the limiting conditions that can be implemented by the present application. Any modification of structure, change of proportion relationship or adjustment of size, which does not affect the effects that can be produced by the present application and the purposes that can be achieved, should still fall within the scope of the technical content disclosed by the present application.

[0035] The orientations or positional relationships indicated by terms such as "upper", "lower", "left", "right", "intermediate", "vertical", "horizontal", "inner", "outer", "radial", "circumferential", etc. in the present specification are based on the orientations or positional relationships shown in the drawings, and are only used to facilitate the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are only used for description purposes and cannot be understood as indicating or implying relative importance.

[0036] As described in the background, the existing engine cylinder block and generator housing adopt a split structure, and the generator is connected with the cylinder block by press fitting or bolt fixing after assembly. This split assembly method leads to complex assembly process, increases assembly time, and requires independent cooling systems for the cylinder block and the generator stator, which is not conducive to improving system integration. In order to better solve this problem, the inventors of the present application propose a cylinder block to solve the problem of split assembly of the cylinder block and the generator, and use the cooling liquid delivered by the engine cooling module to cool the stator.

[0037] As Figure 1 shown, Figure 1 is a structural schematic diagram of the cylinder block in an embodiment of the present application. Meanwhile, reference can also be made to Figures 2 to 4 shown. The cylinder block includes a body 100, and the end face of the body 100 is integrally formed with a housing 200, and a stator 300 is installed in the housing 200. By providing a housing oil passage 210 in the housing 200, the cooling liquid provided by the engine cooling module enters the housing oil passage 210, thereby cooling the stator 300, so as to solve the problems of complex assembly and independent configuration of the cooling system caused by split assembly of the cylinder block and the generator in the existing scheme.

[0038] Specifically, the cylinder block includes: a body 100; a housing 200 integrally formed with the end face of the body 100, and a housing oil passage 210 is provided in the housing 200, and the inlet of the housing oil passage 210 is configured to communicate with the cooling module in the engine; a stator 300 fixed in the inner cavity of the housing 200, and a stator oil passage 310 is integrated in the stator 300, the inlet of the stator oil passage 310 communicates with the housing oil passage 210, and the housing oil passage 210 is configured to deliver cooling liquid into the stator oil passage 310.

[0039] In the embodiment, the housing 200 is integrally formed on the end surface of the cylinder body 100. For example, the housing 200 is integrally formed with the cylinder body 100 by casting, so that the housing 200 is directly integrated with the cylinder body 100 and meets the requirements of structural strength and sealing performance after integration. Alternatively, the housing 200 can be designed by using a hole punching method in the cylinder body 100. The housing oil passage 210 is arranged in the housing 200. The inlet of the housing oil passage 210 is in communication with the cooling module of the engine, so that the cooling liquid can be delivered to the inside of the housing 200. The housing oil passage 210 can be realized by casting or a hole punching method. The stator 300 is fixed in the inner cavity of the housing 200. The stator oil passage 310 is integrated in the stator 300. The stator oil passage 310 can be realized by casting or a hole punching method. The inlet of the stator oil passage 310 is in communication with the housing oil passage 210, so that the cooling liquid enters the stator oil passage 310 from the housing oil passage 210 to cool the stator 300.

[0040] Compared with the prior art, the cylinder body in the embodiment is integrally formed with the housing 200, so that the assembly process of the housing 200 and the stator 300 arranged in the housing 200 and the cylinder body 100 in the traditional split structure is effectively reduced, the assembly steps are reduced, and the assembly efficiency is improved. Meanwhile, the housing oil passage 210 is in communication with the stator oil passage 310, so that the cooling liquid provided by the engine cooling module can be delivered to the inside of the stator 300 through the housing oil passage 210 in the housing 200, and the integration degree of the system is improved.

[0041] In an embodiment, referring to FIG. 2, Figures 2 to 4 The inlet of the stator oil passage 310 is arranged on the side wall of the stator 300. The housing oil passage 210 includes a first branch passage 211. The outlet of the first branch passage 211 corresponds to and is in communication with the inlet of the stator oil passage 310.

[0042] In the embodiment, the inlet of the stator oil passage 310 is arranged on the side wall of the stator 300, so that the cooling liquid can enter the inside of the stator 300 from the side of the stator 300 to cool the inside of the stator 300. The cooling liquid flows out of the first branch passage 211 of the housing oil passage 210, enters the inlet of the stator oil passage 310 through the outlet of the first branch passage 211, flows along a preset flow path in the stator 300, completes heat exchange through the oil passage in the stator 300, and is finally discharged from the oil outlet of the stator 300. Through the scheme in the embodiment, the cooling liquid delivered by the engine cooling module cools the stator 300, so that the cooling system of the cylinder body and the generator is integrated, the need for an independent cooling system is reduced, and the integration degree of the system is improved.

[0043] In an embodiment, referring to Figure 2 As shown, the housing oil passage 210 further comprises a second branch passage 212, and an outlet of the second branch passage 212 is directed to a side wall of the stator 300.

[0044] In the embodiment, the housing oil passage 210 comprises the second branch passage 212, and an outlet of the second branch passage 212 is directed to a side wall of the stator 300, so that the coolant can be delivered to the side wall region of the stator 300 according to a preset flow path, and directly contact with the side wall surface of the stator 300 to achieve cooling of the side wall of the stator 300. Through the arrangement of the second branch passage 212 in the housing 200, the coolant can form an overall cooling mechanism for the inside of the stator 300 and the outside of the stator 300 while cooling the side wall of the stator 300, thereby improving the cooling efficiency of the stator 300.

[0045] In an embodiment, referring to Figure 4 As shown, the inlet of the stator oil passage 310 is located at the side wall of the stator 300 and close to one side of the end of the stator 300.

[0046] In the embodiment, the inlet of the stator oil passage 310 is arranged close to one side of the end of the stator 300, and the first branch passage 211 in the housing oil passage 210 corresponds to and communicates with the inlet of the stator oil passage 310, so that the coolant can be preferentially introduced into the end region of the stator 300. Since the end region of the stator 300 is usually a heat accumulation region, the introduction of the coolant can reduce the thermal load of the end and reduce the risk of local overheating, thereby improving the overall cooling effect.

[0047] Further, in an embodiment, referring to Figure 5 As shown, the housing oil passage 210 further comprises a third branch passage 213, and the third branch passage 213 respectively communicates with the first branch passage 211 and the second branch passage 212.

[0048] In the embodiment, the housing oil passage 210 comprises the third branch passage 213, and the third branch passage 213 is used for delivering the coolant and respectively communicates with the first branch passage 211 and the second branch passage 212. Through the arrangement of the third branch passage 213, the coolant can be first divided into the first branch passage 211 and the second branch passage 212 via the third branch passage 213, and then delivered to different cooling regions of the stator 300, thereby achieving cooling of the stator 300.

[0049] In an embodiment, the number of the third branch passage 213 is not less than two, the number of the first branch passage 211 is the same as the number of the second branch passage 212, and the number of the inlet of the stator oil passage 310 is the same as the number of the first branch passage 211 and one-to-one correspondence communication.

[0050] In the embodiment, the number of the third branch channels 213 is not less than two, and the number of the first branch channels 211 is the same as that of the second branch channels 212, and the number of the inlets of the stator oil passage channels 310 is the same as that of the first branch channels 211 and communicates one by one. Through the scheme in the embodiment, the cooling liquid can be distributed to the plurality of first branch channels 211 and the second branch channels 212 through the plurality of third branch channels 213, and respectively enter the plurality of inlets of the stator oil passage channels 310, thereby realizing synchronous cooling of different regions of the stator 300.

[0051] In an embodiment, referring to Figure 5 It is shown that the extension direction of the third branch channel 213 is parallel to the extension direction of the axis of the stator 300; and / or, the distance between the inner wall of the third branch channel 213 and the outer wall of the housing 200 is not less than 3mm.

[0052] In the embodiment, the third branch channel 213 is arranged in parallel along the axis direction of the stator 300, so that the axis direction of the stator 300 can be used as a reference when the third branch channel 213 is processed, thereby improving the processing precision and consistency. In addition, the distance between the inner wall of the third branch channel 213 and the outer wall of the housing 200 is not less than 3mm, so that the housing 200 has sufficient wall thickness during processing, thereby avoiding that the third branch channel 213 is broken during processing due to insufficient wall thickness.

[0053] In an embodiment, referring to Figure 1 and Figure 6 It is shown that the cylinder block is further provided with an end cover 400, the end cover 400 is sealingly connected to the open end of the housing 200, and the end cover 400 is provided with a fourth branch channel 410, the fourth branch channel 410 extends along the lower end of the end cover 400 to the upper end of the end cover 400 and communicates with the third branch channel 213.

[0054] In the embodiment, the cylinder block includes the end cover 400, the end cover 400 is sealingly connected to the open end of the housing 200, so that the housing 200 forms a closed structure. The end cover 400 is internally provided with the fourth branch channel 410, the fourth branch channel 410 extends along the lower end of the end cover 400 to the upper end of the end cover 400 and communicates with the third branch channel 213. Through the arrangement of the fourth branch channel 410, the cooling liquid can be transported along a predetermined path from the lower end of the end cover 400 to the upper end of the end cover 400, and further enter the housing oil passage channel 210. The cooling liquid is transported to the stator oil passage channel 310 through the housing oil passage channel 210, thereby realizing cooling of the stator 300.

[0055] The application also provides an extended range engine, the extended range engine comprising a cylinder block.

[0056] In the embodiment, the range extender comprises the cylinder block, and since the housing 200 for mounting the stator 300 is directly integrated in the cylinder block, the mounting efficiency between the engine cylinder block and the generator can be reduced, and the cooling liquid in the cooling module in the engine can cool the stator 300, thereby improving the mounting efficiency and integration of the range extender.

[0057] The application further provides a vehicle, wherein the vehicle comprises the range extender.

[0058] The technical features of the above embodiments can be combined in any manner, and for the sake of brevity, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combinations of the technical features do not exist contradictions, they shall be considered as the scope of the present application.

[0059] The above embodiments only express several implementation manners of the application, and the description is relatively specific and detailed, but it shall not be understood as the limitation on the scope of the utility model patent. It should be pointed out that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the application, and these all belong to the protection scope of the application. Therefore, the protection scope of the patent of the application shall be subject to the appended claims.

Claims

1. A cylinder block characterized by: The cylinder block comprises: a body (100); a housing (200) integrally formed with an end face of the body (100), an inner cavity of the housing (200) is provided with a housing oil passage (210), an inlet of the housing oil passage (210) is configured to communicate with a cooling module in an engine; a stator (300) fixed in the inner cavity of the housing (200), the stator (300) is internally integrated with a stator oil passage (310), an inlet of the stator oil passage (310) communicates with the housing oil passage (210), and the housing oil passage (210) is configured to deliver cooling liquid to the stator oil passage (310).

2. The cylinder block of claim 1, wherein: The inlet of the stator oil passage (310) is arranged on a side wall of the stator (300), and the housing oil passage (210) comprises a first branch passage (211), an outlet of the first branch passage (211) corresponds to and communicates with the inlet of the stator oil passage (310).

3. The cylinder block of claim 2, wherein: The housing oil passage (210) further comprises a second branch passage (212), and an outlet of the second branch passage (212) faces the side wall of the stator (300).

4. The cylinder block of claim 2, wherein: The inlet of the stator oil passage (310) is located on the side wall of the stator (300) and close to one side of an end of the stator (300).

5. The cylinder block of claim 3, wherein: The housing oil passage (210) further comprises a third branch passage (213), and the third branch passage (213) respectively communicates the first branch passage (211) and the second branch passage (212).

6. The cylinder block of claim 5, wherein: The number of the third branch passages (213) is not less than two, the number of the first branch passages (211) is the same as that of the second branch passages (212), and the number of the inlets of the stator oil passages (310) is the same as that of the first branch passages (211) and one-to-one corresponds to and communicates with the first branch passages (211).

7. The cylinder block of claim 5, wherein: The extending direction of the third branch passages (213) is parallel to the extending direction of the axis of the stator (300); and / or, the distance between the inner wall of the third branch passage (213) and the outer wall of the housing (200) is not less than 3 mm.

8. The cylinder block of claim 6, wherein: The cylinder block is further provided with an end cover (400) sealingly connected to an open end of the housing (200), the end cover (400) is provided with a fourth branch passage (410) extending from a lower end of the end cover (400) to an upper end of the end cover (400) and communicating with the third branch passage (213).

9. A range extender characterized by: The range extender comprises the cylinder block according to any one of claims 1 to 8.

10. A vehicle characterized by: The vehicle comprises the range extender according to claim 9.

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