Oil way integration system applied to new energy commercial vehicle

Abstract

The invention discloses an oil way integration system applied to a new energy commercial vehicle, and relates to the technical field of electric drive axles. The system comprises a main shell, an oil way integrated cover plate, a first electronic oil pump, a second electronic oil pump, a first heat exchanger, a second heat exchanger and a first filter. The oil way integration cover plate is fixedly connected with the main shell. The oil way integration cover plate is provided with a first oil storage groove, a second oil storage groove, a first oil pump connector set, a second oil pump connector set, a first heat exchange connector set, a second heat exchange connector set, a first filtering connector set and an external connector set. And the main shell is provided with a third oil storage tank, a fourth oil storage tank and an oil supply and outlet interface group which are matched with the main shell. Therefore, through the oil way integration cover plate and the main shell structure matched with the oil way integration cover plate, installation of parts such as the first electronic oil pump, the second electronic oil pump, the first heat exchanger, the second heat exchanger and the first filter is achieved, and the oil way is simple and convenient to maintain, disassemble and assemble.

Description

Technical Field

[0001] This specification relates to the technical field of electric drive axles, and particularly to an oil circuit integration system applied to new energy commercial vehicles. Background Art

[0002] Normally, a segmented electric drive axle is equipped with a motor, a gearbox, and related heat dissipation and filtration structures.

[0003] In the prior art, within a segmented electric drive axle, the motor cooling oil circuit and the gear cooling oil circuit are directly designed on the main housing.

[0004] However, since a segmented electric drive axle involves a relatively large number of oil circuit and coolant circuit interfaces, the solution in the prior art results in a complex oil circuit, high equipment complexity, difficult maintenance, and a large number of parts, leading to a high cost. Summary of the Invention

[0005] This specification provides an oil circuit integration system applied to new energy commercial vehicles to at least partially solve the above problems existing in the prior art.

[0006] This specification adopts the following technical solutions:

[0007] This specification provides an oil circuit integration system applied to new energy commercial vehicles, including a main housing, an oil circuit integration cover plate, a first electronic oil pump, a second electronic oil pump, a first heat exchanger, a second heat exchanger, and a first filter;

[0008] The oil circuit integration cover plate is fixedly connected to the main housing, and the first surface of the oil circuit integration cover plate faces the inside of the main housing;

[0009] The first surface of the oil circuit integration cover plate is provided with a first oil storage tank and a second oil storage tank; other surfaces of the oil circuit integration cover plate are provided with a first oil pump interface group, a second oil pump interface group, a first heat exchange interface group, a second heat exchange interface group, a first filtration interface group, and an external interface group; the oil circuit integration cover plate is further provided with a through-channel group that penetrates its first surface and other surfaces;

[0010] The main housing is provided with a third oil storage tank that cooperates with the first oil storage tank, a fourth oil storage tank that cooperates with the second oil storage tank, and a fuel supply and outlet interface group that cooperates with the through-channel group.

[0011] Preferably, the through-channel group includes a first oil pump inlet channel, a first heat exchanger outlet channel, a second heat exchanger second outlet channel, and a second oil pump inlet channel;

[0012] The first oil pump interface group includes a first oil pump outlet, and an external interface of the first oil pump inlet channel;

[0013] The second oil pump interface group includes a second oil pump oil outlet and an outward interface of the second oil pump oil inlet passage;

[0014] The first heat exchange interface group includes a first heat exchanger liquid inlet, a first heat exchanger liquid outlet, a first heat exchanger oil inlet, and an outward interface of the first heat exchanger oil outlet passage;

[0015] The second heat exchange interface group includes a first oil inlet of the second heat exchanger, a first oil outlet of the second heat exchanger, a second oil inlet of the second heat exchanger, and an outward interface of the second oil outlet passage of the second heat exchanger;

[0016] The first filter interface group includes a first filter oil inlet and a first filter oil outlet;

[0017] The external interface group includes an external liquid inlet and an external liquid outlet;

[0018] The inward interface of the first heat exchanger oil outlet passage is arranged at the bottom of the first oil storage tank;

[0019] There are three inward interfaces of the second oil outlet passage of the second heat exchanger, and one of the inward interfaces is arranged at the bottom of the second oil storage tank.

[0020] Preferably, the first oil pump oil outlet is communicated with the first filter oil inlet;

[0021] The first filter oil outlet is communicated with the first oil inlet of the second heat exchanger;

[0022] The second oil outlet of the second heat exchanger is communicated with the second oil pump oil inlet;

[0023] The external liquid inlet is communicated with the first heat exchanger liquid inlet;

[0024] The external liquid outlet is communicated with the external liquid outlet of the first heat exchanger;

[0025] The second oil inlet of the second heat exchanger is communicated with the second oil pump oil outlet.

[0026] Preferably, the oil supply and outlet interface group includes a first housing oil outlet interface, a second housing oil outlet interface, a first housing lubrication interface, and a second housing lubrication interface;

[0027] The first housing oil outlet interface corresponds to the inward interface of the first oil pump oil inlet passage;

[0028] The second housing oil outlet interface corresponds to the inward interface of the second oil pump oil inlet passage;

[0029] The first housing lubrication interface and the second housing lubrication interface respectively correspond to two of the three inward interfaces of the second oil outlet channel of the second heat exchanger that are arranged outside the second oil storage tank.

[0030] Preferably, a corresponding first lubrication structure is arranged below the first housing lubrication interface, and the first lubrication structure is used to spray lubricating oil onto the transmission gears;

[0031] A corresponding second lubrication structure is arranged below the second housing lubrication interface, and the second lubrication structure is used to spray lubricating oil onto the transmission gears.

[0032] Preferably, the oil circuit integration system applied to new energy commercial vehicles further includes a first temperature sensor, a second temperature sensor, and a third temperature sensor;

[0033] The oil circuit integration cover plate is further provided with a first mounting hole, a second mounting hole, and a third mounting hole;

[0034] The first mounting hole is adjacent to the oil outlet of the first heat exchanger; the first temperature sensor is used to measure the first temperature of the motor lubricating oil flowing out of the oil outlet of the first heat exchanger;

[0035] The second mounting hole is adjacent to the first lubricating oil outlet; the second temperature sensor is used to measure the second temperature of the gear lubricating oil flowing out of the first lubricating oil outlet;

[0036] The third mounting hole is adjacent to the pipeline connecting the oil outlet of the first filter and the first oil inlet of the second heat exchanger, and is used to measure the third temperature of the lubricating oil in the main housing.

[0037] Preferably, the third oil tank is provided with a stator lubrication structure and a rotor lubrication structure;

[0038] The stator lubrication structure is adjacent to the stator of the motor and is used to spray lubricating oil onto the stator;

[0039] The rotor lubrication structure is adjacent to the rotor of the motor and is used to spray lubricating oil onto the rotor.

[0040] Preferably, the fourth oil storage tank is provided with a gear lubrication structure;

[0041] The gear lubrication structure is adjacent to the transmission gears and is used to spray lubricating oil onto the transmission gears.

[0042] Preferably, the oil circuit integration system applied to new energy commercial vehicles further includes a second filter;

[0043] The second filter is disposed inside the main housing, and the second heat exchanger is disposed between the transmission oil pan and the second electronic oil pump for filtering the gear lubricating oil in the transmission.

[0044] On the other hand, this specification provides a new energy commercial vehicle including the oil circuit integration system for new energy commercial vehicles provided in the above-mentioned one aspect. The at least one technical solution adopted in this specification can achieve the following beneficial effects:

[0045] According to the above content, the oil circuit integration system for new energy commercial vehicles includes a main housing, an oil circuit integration cover plate, a first electronic oil pump, a second electronic oil pump, a first heat exchanger, a second heat exchanger, and a first filter. Among them, the oil circuit integration cover plate is fixedly connected to the main housing, and the first surface of the oil circuit integration cover plate faces the inside of the main housing. The first surface of the oil circuit integration cover plate is provided with a first oil storage tank and a second oil storage tank. The other surfaces of the oil circuit integration cover plate are provided with a first oil pump interface group, a second oil pump interface group, a first heat exchange interface group, a second heat exchange interface group, a first filter interface group, and an external interface group. The oil circuit integration cover plate is further provided with a through-channel group that penetrates its first surface and other surfaces. And, the main housing is provided with a third oil storage tank that cooperates with the first oil storage tank, a fourth oil storage tank that cooperates with the second oil storage tank, and a fuel supply and outlet interface group that cooperates with the through-channel group.

[0046] It can be seen that the above oil circuit integration system realizes the installation of components such as the first electronic oil pump, the second electronic oil pump, the first heat exchanger, the second heat exchanger, and the first filter through the oil circuit integration cover plate and the main housing structure adapted thereto, and the oil circuit is simple, facilitating maintenance and disassembly. Description of the Drawings

[0047] The drawings described herein are used to provide a further understanding of this specification, and constitute a part of this specification. The schematic embodiments of this specification and their descriptions are used to explain this specification and do not constitute an improper limitation to this specification. In the drawings:

[0048] Figure 1 is a schematic structural diagram of an oil circuit integration system for new energy commercial vehicles provided in an embodiment of this specification;

[0049] Figure 2 is a schematic architecture diagram of an oil circuit integration system for new energy commercial vehicles provided in an embodiment of this specification;

[0050] Figure 3 is a schematic structural diagram of the first surface of the oil circuit integration cover plate provided in an embodiment of this specification;

[0051] Figure 4Schematic diagram of the second side of the oil circuit integrated cover plate 1 provided for an embodiment of this specification;

[0052] Figure 5 Schematic diagram of the A-A' cross-section of the oil circuit integrated cover plate 1 provided for an embodiment of this specification;

[0053] Figure 6 Schematic diagram of the intercepting position of cross-section A-A' provided for an embodiment of this specification;

[0054] Figure 7 Schematic diagram of a partial structure of the main housing provided for an embodiment of this specification.

[0055] Explanation of reference numerals:

[0056] Oil circuit integrated cover plate 1; Main housing 2; Second heat exchanger 3; First filter 4; First electronic oil pump 5; First heat exchanger 6; Second electronic oil pump 10; First oil pump inlet passage 101; First oil pump outlet 101a; First filter inlet 102; First filter outlet 102a; First inlet of the second heat exchanger 103; First outlet of the second heat exchanger 104; Second inlet of the second heat exchanger 111; Second outlet passage of the second heat exchanger 112; Liquid inlet of the first heat exchanger 108; Liquid outlet of the first heat exchanger 107; Oil inlet of the first heat exchanger 105; Oil outlet passage of the first heat exchanger 106; External liquid inlet 109; External liquid outlet 110; Second oil storage tank 113; First internal interface of the second outlet passage of the second heat exchanger 114; Second internal interface of the second outlet passage of the second heat exchanger 115; Motor oil storage tank 116; First internal passage 117; Second internal passage 118; Third internal passage 119; Fourth internal passage 120; Fifth internal passage 121; Sixth internal passage 122; Seventh internal passage 123; Second oil pump inlet passage 124; Second oil pump outlet 125; First mounting hole 126; Second mounting hole 127; Third mounting hole 128; First housing oil outlet interface 201; Second housing oil outlet interface 202; First housing lubrication interface 203; Second housing lubrication interface 204; Fourth oil storage tank 205; Third oil storage tank 206; Motor stator oil inlet 207; Motor rotor oil inlet 208. Detailed implementation manners

[0057] To make the objectives, technical solutions, and advantages of this specification clearer, the technical solutions of this specification will be clearly and completely described below in conjunction with specific embodiments of this specification and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this specification, rather than all of them. Based on the embodiments in this specification, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

[0058] In the description of the present invention, it should be noted that the term "or" is generally used in the sense of including "and / or", unless the content clearly indicates otherwise.

[0059] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. Additionally, in the description of this application, terms such as "first", "second", etc. are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0060] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0061] The following will describe in detail the technical solutions provided by each embodiment of this specification in conjunction with the accompanying drawings.

[0062] Figure 1 The structural schematic diagram of an oil circuit integration system applied to a new energy commercial vehicle provided for an embodiment of this specification is as Figure 1 shown. The oil circuit integration system applied to a new energy commercial vehicle includes a main housing 2, an oil circuit integration cover plate 1, a first electronic oil pump 5, a second electronic oil pump 10, a first heat exchanger 6, a second heat exchanger 3, and a first filter 4.

[0063] Preferably, the oil circuit integration cover plate 1 is fixedly connected to the main housing 2.

[0064] Preferably, the oil circuit integration cover plate 1 is installed on the top, side, or bottom of the main housing 2.

[0065] Preferably, the oil circuit integration cover plate 1 is installed on the top of the main housing 2 for easy maintenance.

[0066] Preferably, the oil circuit integration cover plate 1 is installed on the top of the main housing 2, and the outer surface of the oil circuit integration cover plate 1 is exposed, and the bottom surface of the oil circuit integration cover plate 1 faces the inside of the main housing 2. As Figure 1 shown.

[0067] Preferably, the first surface of the oil circuit integration cover plate 1 faces the inside of the main housing 2, and the other surfaces are exposed.

[0068] Figure 2 The architecture schematic diagram of an oil circuit integration system applied to a new energy commercial vehicle provided for an embodiment of this specification is as Figure 2 shown. The first electronic oil pump 5, the second electronic oil pump 10, the first heat exchanger 6, the second heat exchanger 3, and the first filter 4 are all arranged on the oil circuit integration cover plate 1.

[0069] Preferably, the other surfaces of the oil circuit integrated cover plate 1 are provided with a first oil pump interface group, a second oil pump interface group, a first heat exchange interface group, a second heat exchange interface group, a first filter interface group, and an external interface group.

[0070] Preferably, the first surface of the oil circuit integrated cover plate 1 is provided with a first oil storage tank, a second oil storage tank 113, an inward interface of the first oil pump inlet channel 101, an inward interface of the second oil pump inlet channel 124, an inward interface of the first heat exchanger outlet channel 106, and an inward interface of the second heat exchanger second outlet channel 112.

[0071] Preferably, the oil circuit integrated cover plate 1 is further provided with a through-channel group that penetrates its first surface and other surfaces.

[0072] Preferably, the top of the main housing 2 is provided with a third oil storage tank 206 that cooperates with the first oil storage tank, a fourth oil storage tank 205 that cooperates with the second oil storage tank 113, and a fuel supply and outlet interface group that cooperates with the through-channel group.

[0073] Preferably, the first oil pump interface group is detachably connected to the first electronic oil pump 5.

[0074] Preferably, the second oil pump interface group is detachably connected to the second electronic oil pump 10.

[0075] Preferably, the first heat exchange interface group is detachably connected to the first heat exchanger 6.

[0076] Preferably, the second heat exchange interface group is detachably connected to the second heat exchanger 3.

[0077] Preferably, the first filter interface group is detachably connected to the first filter 4.

[0078] Preferably, the external interface group is used to be detachably connected to the cooling circulation system of the new energy commercial vehicle and transmit cooling liquid.

[0079] According to the above, the oil circuit integration system applied to new energy commercial vehicles includes a main housing 2, an oil circuit integration cover plate 1, a first electronic oil pump 5, a second electronic oil pump 10, a first heat exchanger 6, a second heat exchanger 3, and a first filter 4. Among them, the oil circuit integration cover plate 1 is fixedly connected to the main housing 2, and the first surface of the oil circuit integration cover plate 1 faces the inside of the main housing 2. A first oil storage tank and a second oil storage tank 113 are provided on the first surface of the oil circuit integration cover plate 1. A first oil pump interface group, a second oil pump interface group, a first heat exchange interface group, a second heat exchange interface group, a first filter interface group, and an external interface group are provided on other surfaces of the oil circuit integration cover plate 1. The oil circuit integration cover plate 1 is further provided with a through-channel group that penetrates its first surface and other surfaces. Moreover, the main housing 2 is provided with a third oil storage tank 206 that cooperates with the first oil storage tank, a fourth oil storage tank 205 that cooperates with the second oil storage tank 113, and a fuel supply and outlet interface group that cooperates with the through-channel group.

[0080] It can be seen that the above oil circuit integration system realizes the installation of components such as the first electronic oil pump 5, the second electronic oil pump 10, the first heat exchanger 6, the second heat exchanger 3, and the first filter 4 through the structure of the oil circuit integration cover plate 1 and the main housing 2 adapted thereto, and has a simple oil circuit, is convenient for maintenance, and is easy to disassemble and assemble.

[0081] Preferably, the through-channel group includes a first oil pump inlet channel 101, a first heat exchanger outlet channel 106, a second heat exchanger second outlet channel 112, and a second oil pump inlet channel 124.

[0082] Preferably, the first oil pump interface group includes a first oil pump outlet 101a and an external interface of the first oil pump inlet channel 101.

[0083] Preferably, the second oil pump interface group includes a second oil pump outlet 125 and an external interface of the second oil pump inlet channel 124.

[0084] Preferably, the first heat exchange interface group includes a first heat exchanger liquid inlet 108, a first heat exchanger liquid outlet 107, a first heat exchanger oil inlet 105, and an external interface of the first heat exchanger outlet channel 106.

[0085] Preferably, the second heat exchange interface group includes a second heat exchanger first oil inlet 103, a second heat exchanger first oil outlet 104, a second heat exchanger second oil inlet 111, and an external interface of the second heat exchanger second outlet channel 112.

[0086] Preferably, the first filter interface group includes a first filter oil inlet 102 and a first filter oil outlet 102a.

[0087] Preferably, the external interface group includes an external liquid inlet 109 and an external liquid outlet 110.

[0088] Preferably, the inward interface of the oil outlet channel 106 of the first heat exchanger is arranged at the bottom of the first oil storage tank.

[0089] Preferably, there are three inward interfaces provided at the second oil outlet channel 112 of the second heat exchanger, and one of the inward interfaces is arranged at the bottom of the second oil storage tank 113.

[0090] Figure 3 The structural schematic diagram of the first side of the oil path integrated cover plate 1 provided by an embodiment of this specification is shown in Figure 3 As shown, the first side of the oil path integrated cover plate 1 is provided with a first oil pump inlet channel 101, a first oil pump outlet 101a, a first filter inlet 102, a first filter outlet 102a, a first inlet of the second heat exchanger 103, a first outlet of the second heat exchanger 104, a second inlet of the second heat exchanger 111, a second oil outlet channel 112 of the second heat exchanger, a first liquid inlet of the first heat exchanger 108, a first liquid outlet of the first heat exchanger 107, a first oil inlet of the first heat exchanger 105, an oil outlet channel 106 of the first heat exchanger, an external liquid inlet 109, an external liquid outlet 110, a second oil pump inlet channel 124, a second oil pump outlet 125, a first mounting hole 126, a second mounting hole 127, and a third mounting hole 128.

[0091] Preferably, the first oil pump interface group, the second oil pump interface group, the first heat exchange interface group, the second heat exchange interface group, and the first filter interface group are all arranged on the second side of the oil path integrated cover plate 1, and the external interface group is arranged on the third side of the oil path integrated cover plate 1. Among them, the second side and the third side face in opposite directions, and the orientation of the third side is perpendicular to the orientations of the first side and the second side.

[0092] Figure 4 The structural schematic diagram of the second side of the oil path integrated cover plate 1 provided by an embodiment of this specification is shown in Figure 4 As shown, the second side of the oil path integrated cover plate 1 is provided with a first oil pump inlet channel 101, an oil outlet channel 106 of the first heat exchanger, a second oil storage tank 113, a first inward interface 114 of the second oil outlet channel of the second heat exchanger, a second inward interface 115 of the second oil outlet channel of the second heat exchanger, a motor oil storage tank 116, and a second oil pump inlet channel 124. And the third side is provided with an external liquid inlet 109 and an external liquid outlet 110.

[0093] Preferably, the first oil pump outlet 101a is communicated with the first filter inlet 102.

[0094] Preferably, the first filter outlet 102a is communicated with the first inlet of the second heat exchanger 103.

[0095] Preferably, the second oil outlet of the second heat exchanger 3 is connected to the oil inlet of the second oil pump.

[0096] Preferably, the external liquid inlet 109 is connected to the liquid inlet 108 of the first heat exchanger.

[0097] Preferably, the external liquid outlet 110 is connected to the external liquid outlet 110 of the first heat exchanger 6.

[0098] Preferably, the second oil inlet 111 of the second heat exchanger is connected to the oil outlet 125 of the second oil pump.

[0099] Preferably, the first oil outlet 104 of the second heat exchanger is connected to the oil inlet 105 of the first heat exchanger.

[0100] Figure 5 Schematic diagram of the A-A' cross-section of the oil circuit integrated cover plate 1 provided for an embodiment of this specification. Figure 6 Schematic diagram of the intercepting position of the cross-section A-A' provided for an embodiment of this specification. As Figure 5 As shown, there are a first internal channel 117, a second internal channel 118, a third internal channel 119, a fourth internal channel 120, a fifth internal channel 121, a sixth internal channel 122, and a seventh internal channel 123 inside the oil circuit integrated cover plate 1.

[0101] Preferably, the oil supply and outlet interface group includes a first housing oil outlet interface 201, a second housing oil outlet interface 202, a first housing lubrication interface 203, and a second housing lubrication interface 204.

[0102] Preferably, the first housing oil outlet interface 201 corresponds to the inward interface of the first oil pump inlet channel 101, that is, the first housing oil outlet interface 201 is detachably connected to the inward interface of the first oil pump inlet channel 101.

[0103] Preferably, the second housing oil outlet interface 202 corresponds to the inward interface of the second oil pump inlet channel 124. That is, the second housing oil outlet interface 202 is detachably connected to the inward interface of the second oil pump inlet channel 124.

[0104] Preferably, the first housing lubrication interface 203 and the second housing lubrication interface 204 respectively correspond to two of the three inward interfaces of the second oil outlet channel of the second heat exchanger that are arranged outside the second oil storage tank 113. That is, the first housing lubrication interface 203 and the second housing lubrication interface 204 are respectively detachably connected to two of the three inward interfaces of the second oil outlet channel of the second heat exchanger that are arranged outside the second oil storage tank 113.

[0105] Figure 7Partial structural schematic diagram of the main housing 2 provided for an embodiment of this specification, as Figure 7 shown, the main housing 2 is provided with a first housing oil outlet interface 201, a second housing oil outlet interface 202, a first housing lubrication interface 203, a second housing lubrication interface 204, a fourth oil storage tank 205, a third oil storage tank 206, a motor stator oil inlet 207, and a motor rotor oil inlet 208.

[0106] Preferably, a first lubrication structure corresponding thereto is provided below the first housing lubrication interface 203, and the first lubrication structure is used to spray lubricating oil onto the transmission gears.

[0107] Preferably, a second lubrication structure corresponding thereto is provided below the second housing lubrication interface 204, and the second lubrication structure is used to spray lubricating oil onto the transmission gears.

[0108] Preferably, the oil circuit integration system applied to new energy commercial vehicles further includes a first temperature sensor, a second temperature sensor, and a third temperature sensor.

[0109] Preferably, the oil circuit integration cover plate 1 is further provided with a first mounting hole 126, a second mounting hole 127, and a third mounting hole 128.

[0110] Preferably, the first mounting hole 126 is adjacent to the oil outlet of the first heat exchanger 6, and the first temperature sensor is used to measure the first temperature of the motor lubricating oil flowing out of the oil outlet of the first heat exchanger 6.

[0111] Preferably, the second mounting hole 127 is adjacent to the first lubricating oil outlet; the second temperature sensor is used to measure the second temperature of the gear lubricating oil flowing out of the first lubricating oil outlet.

[0112] Preferably, the third mounting hole 128 is adjacent to the pipeline connecting the oil outlet of the first filter 102a and the first oil inlet of the second heat exchanger 103, and is used to measure the third temperature of the lubricating oil in the main housing 2.

[0113] Preferably, the third oil tank is provided with a stator lubrication structure and a rotor lubrication structure.

[0114] Preferably, the stator lubrication structure is adjacent to the stator of the motor and is used to spray lubricating oil onto the stator.

[0115] Preferably, the rotor lubrication structure is adjacent to the rotor of the motor and is used to spray lubricating oil onto the rotor.

[0116] Preferably, the fourth oil storage tank 205 is provided with a gear lubrication structure.

[0117] Preferably, the gear lubrication structure is adjacent to the transmission gears and is used to spray lubricating oil onto the transmission gears.

[0118] Preferably, the oil circuit integration system applied to new energy commercial vehicles further includes a second filter.

[0119] Preferably, the second filter is disposed inside the main housing 2, and the second heat exchanger 3 is disposed between the transmission oil pan and the second electronic oil pump 10 for filtering the gear lubricating oil in the transmission.

[0120] Preferably, the filtering size of the second filter is larger than that of the first filter 4.

[0121] Preferably, the first electronic oil pump 5 disposed on the oil circuit integration cover plate 1 can pump the motor lubricating oil inside the main housing 2 through the first oil pump inlet passage 101 on the oil circuit integration cover plate 1 and the first housing oil outlet interface 201 provided on the main housing 2, and send the motor lubricating oil into the first filter 4 through the first oil pump outlet 101a and the first filter inlet 102. After passing through the first filter 4, the motor lubricating oil enters the second heat exchanger 3 through the first filter outlet 102a and the first inlet of the second heat exchanger 103. After heat exchange, the motor lubricating oil enters the first heat exchanger 6 through the first outlet of the second heat exchanger 104 and the inlet of the first heat exchanger 105. After heat exchange, the motor lubricating oil enters the motor oil storage tank 116 through the first heat exchanger outlet passage 106 and is sprayed onto the surfaces of the motor stator and the motor rotor through the motor stator inlet 207 and the motor rotor inlet 208. The second electronic oil pump 10 disposed on the oil circuit integration cover plate 1 can pump the gear lubricating oil inside the main housing 2 through the second oil pump inlet passage 124 on the oil circuit integration cover plate 1 and the second housing oil outlet interface 202 provided on the main housing 2. The gear lubricating oil enters the second heat exchanger 3 through the second oil pump outlet 125 and the second inlet of the second heat exchanger 111. After heat exchange, the gear lubricating oil enters the second oil storage tank 113 through the second outlet passage of the second heat exchanger 112 and is sprayed onto the gear surface through the first housing lubrication interface 203 and the second housing lubrication interface 204.

[0122] The above is the oil circuit integration system applied to new energy commercial vehicles provided by one or more embodiments of this specification. Based on the same idea, this specification also provides corresponding new energy commercial vehicles.

[0123] Preferably, the new energy commercial vehicle includes the oil circuit integration system applied to new energy commercial vehicles provided by any one of the above embodiments.

[0124] It should also be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, commodity or device comprising a series of elements not only includes those elements but also other elements not expressly listed, or elements inherent to such process, method, commodity or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, commodity or device comprising said element.

[0125] Each embodiment in this specification is described in a progressive manner. For the identical or similar parts among the embodiments, reference can be made to each other, and the differences between each embodiment and other embodiments are emphasized. In particular, for system embodiments, since they are basically similar to method embodiments, the description is relatively simple, and reference can be made to the relevant parts of the method embodiments for the relevant content.

[0126] The above description is only for the embodiments of this specification and is not intended to limit this specification. For those skilled in the art, various modifications and changes can be made to this specification. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this specification shall be included within the scope of the claims of this application.

Claims

1. An oil circuit integration system applied to new energy commercial vehicles, characterized in that, It includes a main housing, an oil circuit integrated cover plate, a first electronic oil pump, a second electronic oil pump, a first heat exchanger, a second heat exchanger, and a first filter; The oil circuit integrated cover plate is fixedly connected to the main housing, and the first surface of the oil circuit integrated cover plate faces the inside of the main housing; The first surface of the oil circuit integrated cover plate is provided with a first oil storage tank and a second oil storage tank; the other surfaces of the oil circuit integrated cover plate are provided with a first oil pump interface group, a second oil pump interface group, a first heat exchange interface group, a second heat exchange interface group, a first filter interface group, and an external interface group; the oil circuit integrated cover plate is further provided with a through-channel group that penetrates its first surface and other surfaces; The main housing is provided with a third oil storage tank that cooperates with the first oil storage tank, a fourth oil storage tank that cooperates with the second oil storage tank, and a fuel supply and outlet interface group that cooperates with the through-channel group.

2. The oil circuit integration system applied to new energy commercial vehicles according to claim 1, wherein, The through-channel group includes a first oil pump inlet channel, a first heat exchanger outlet channel, a second heat exchanger second outlet channel, and a second oil pump inlet channel; The first oil pump interface group includes a first oil pump outlet, and an external interface of the first oil pump inlet channel; The second oil pump interface group includes a second oil pump outlet, and an external interface of the second oil pump inlet channel; The first heat exchange interface group includes a first heat exchanger liquid inlet, a first heat exchanger liquid outlet, a first heat exchanger oil inlet, and an external interface of the first heat exchanger outlet channel; The second heat exchange interface group includes a first oil inlet of the second heat exchanger, a first oil outlet of the second heat exchanger, a second oil inlet of the second heat exchanger, and an external interface of the second heat exchanger second outlet channel; The first filter interface group includes a first filter oil inlet and a first filter oil outlet; The external interface group includes an external liquid inlet and an external liquid outlet; The internal interface of the first heat exchanger outlet channel is arranged at the bottom of the first oil storage tank; There are three internal interfaces of the second heat exchanger second outlet channel, and one of the internal interfaces is arranged at the bottom of the second oil storage tank.

3. The oil circuit integration system applied to new energy commercial vehicles according to claim 2, characterized in that, The first oil pump outlet is connected to the first filter oil inlet; The first filter oil outlet is connected to the first oil inlet of the second heat exchanger; The second heat exchanger second oil outlet is connected to the second oil pump inlet; The external liquid inlet is connected to the first heat exchanger liquid inlet; The external liquid outlet is connected to the external liquid outlet of the first heat exchanger; The second oil inlet of the second heat exchanger is connected to the second oil pump outlet.

4. The oil circuit integration system applied to new energy commercial vehicles according to claim 2, characterized in that, The fuel supply and outlet interface group includes a first housing outlet interface, a second housing outlet interface, a first housing lubrication interface, and a second housing lubrication interface; The first housing outlet interface corresponds to the internal interface of the first oil pump inlet channel; The second housing outlet interface corresponds to the internal interface of the second oil pump inlet channel; The first housing lubrication interface and the second housing lubrication interface respectively correspond to two of the three internal interfaces of the second heat exchanger second outlet channel that are arranged outside the second oil storage tank.

5. The oil circuit integration system applied to new energy commercial vehicles according to claim 4, characterized in that, Below the first housing lubrication interface, a corresponding first lubrication structure is provided, and the first lubrication structure is used to spray lubricating oil onto the transmission gears; Below the second housing lubrication interface, a corresponding second lubrication structure is provided, and the second lubrication structure is used to spray lubricating oil onto the transmission gears.

6. The oil circuit integration system applied to new energy commercial vehicles according to claim 3, wherein, The oil circuit integration system applied to new energy commercial vehicles further includes a first temperature sensor, a second temperature sensor, and a third temperature sensor; The oil circuit integration cover plate is further provided with a first mounting hole, a second mounting hole, and a third mounting hole; The first mounting hole is adjacent to the oil outlet of the first heat exchanger; the first temperature sensor is used to measure the first temperature of the motor lubricating oil flowing out of the oil outlet of the first heat exchanger; The second mounting hole is adjacent to the first lubricating oil outlet; the second temperature sensor is used to measure the second temperature of the gear lubricating oil flowing out of the first lubricating oil outlet; The third mounting hole is adjacent to the pipeline connecting the oil outlet of the first filter and the first oil inlet of the second heat exchanger, and is used to measure the third temperature of the lubricating oil in the main housing.

7. The oil circuit integration system applied to new energy commercial vehicles according to any one of claims 1-6, characterized in that, The third oil sump is provided with a stator lubrication structure and a rotor lubrication structure; The stator lubrication structure is adjacent to the stator of the motor and is used to spray lubricating oil onto the stator; The rotor lubrication structure is adjacent to the rotor of the motor and is used to spray lubricating oil onto the rotor.

8. The oil circuit integration system applied to new energy commercial vehicles according to any one of claims 1-6, characterized in that, The fourth oil sump is provided with a gear lubrication structure; The gear lubrication structure is adjacent to the transmission gears and is used to spray lubricating oil onto the transmission gears.

9. The oil circuit integration system applied to new energy commercial vehicles according to any one of claims 1-6, characterized in that, The oil circuit integration system applied to new energy commercial vehicles further includes a second filter; The second filter is disposed inside the main housing, and the second heat exchanger is disposed between the transmission oil pan and the second electronic oil pump, and is used to filter the gear lubricating oil in the transmission.

10. A new energy commercial vehicle, characterized in that, It includes the oil circuit integration system applied to new energy commercial vehicles according to any one of claims 1-9.

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