Oil way integrated cover plate and oil way integrated system applied to new energy commercial vehicle

Abstract

The specification discloses an oil circuit integrated cover plate and an oil circuit integrated system applied to a new energy commercial vehicle, and relates to the technical field of electric drive axle. The oil circuit integrated cover plate is provided with a first oil pump oil inlet channel, a first heat exchanger oil outlet channel, a second heat exchanger second oil outlet channel and a second oil pump oil inlet channel penetrating through the first surface and other surfaces thereof. The surface of the oil circuit integrated cover plate is provided with a first oil storage groove, a second oil storage groove, a first oil pump oil outlet a, a second oil pump oil outlet, a first heat exchanger liquid inlet, a first heat exchanger liquid outlet, a first heat exchanger oil inlet, a second heat exchanger, a first oil inlet, a second heat exchanger first oil outlet, a second heat exchanger second oil inlet, a first filter oil inlet, a first filter oil outlet, an external liquid inlet and an external liquid outlet. It can be seen that the above-mentioned oil circuit integrated cover plate integrates various interfaces, can connect the main shell of the electric drive axle with the heat exchanger, the electronic pump, the filter and other equipment, and the oil circuit is simple, convenient to maintain and disassemble.

Description

Technical Field

[0001] This specification relates to the field of electric drive axle technology, and in particular to an integrated oil circuit cover and an integrated oil circuit system applied to new energy commercial vehicles. Background Technology

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

[0003] In the existing technology, the motor cooling oil circuit and gear cooling oil circuit in the segmented electric drive axle are both designed directly on the main housing.

[0004] However, because the segmented electric drive bridge involves numerous oil and coolant circuit interfaces, using existing technologies would result in complex oil circuits, high equipment complexity, difficult maintenance, more parts, and higher costs. Summary of the Invention

[0005] This specification provides an integrated oil circuit cover and an integrated oil circuit system for use in new energy commercial vehicles, in order to at least partially solve the aforementioned problems existing in the prior art.

[0006] The following technical solution is adopted in this specification:

[0007] This specification provides an integrated oil circuit cover plate, which is provided with a first oil pump inlet channel, a first heat exchanger outlet channel, a second heat exchanger outlet channel, and a second oil pump inlet channel, which are connected to the first surface and other surfaces.

[0008] The first side of the oil circuit integrated cover plate is provided with a first oil storage tank, a second oil storage tank, and an inward interface of the first oil pump inlet channel, an inward interface of the second oil pump inlet channel, an inward interface of the first heat exchanger outlet channel, and an inward interface of the second heat exchanger outlet channel.

[0009] The other sides of the oil circuit integrated cover plate are provided with a first oil pump outlet, a second oil pump outlet, a first heat exchanger liquid inlet, a first heat exchanger liquid outlet, a first heat exchanger oil inlet, a second heat exchanger, a first oil inlet, a second heat exchanger first oil outlet, a second heat exchanger second oil inlet, a first filter oil inlet, a first filter oil outlet, an external liquid inlet, an external liquid outlet, and an external interface for the first oil pump inlet channel, the second oil pump inlet channel, the first heat exchanger oil outlet channel, and the second heat exchanger second oil outlet channel.

[0010] Preferably, the inward interface of the oil outlet channel of the first heat exchanger is located at the bottom of the first oil storage tank;

[0011] The second heat exchanger has three inward interfaces for the second oil outlet channel, and one of these inward interfaces is located at the bottom of the second oil storage tank.

[0012] Preferably, the oil outlet of the first oil pump is connected to the oil inlet of the first filter;

[0013] The oil outlet of the first filter is connected to the first oil inlet of the second heat exchanger;

[0014] The second oil outlet of the second heat exchanger is connected to the oil inlet channel of the second oil pump;

[0015] The external liquid inlet is connected to the liquid inlet of the first heat exchanger;

[0016] The external liquid outlet is connected to the external liquid outlet of the first heat exchanger;

[0017] The second oil inlet of the second heat exchanger is connected to the oil outlet of the second oil pump.

[0018] On the other hand, this specification provides an integrated oil circuit system for new energy commercial vehicles, including an integrated oil circuit cover provided by any of the above aspects, as well as a main housing, a first electronic oil pump, a second electronic oil pump, a first heat exchanger, a second heat exchanger, and a first filter.

[0019] Preferably, the oil passage integrated cover is fixedly connected to the main housing, and the first surface of the oil passage integrated cover faces the interior of the main housing;

[0020] 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, as well as an oil outlet port for the first housing, an oil outlet port for the second housing, a lubrication port for the first housing, and a lubrication port for the second housing.

[0021] The oil outlet of the first housing corresponds to the inward interface of the oil inlet channel of the first oil pump;

[0022] The oil outlet of the second housing corresponds to the inward interface of the oil inlet channel of the second oil pump;

[0023] The first housing lubrication interface and the second housing lubrication interface correspond to the two inward interfaces located outside the second oil storage tank among the three inward interfaces of the second oil outlet channel of the second heat exchanger.

[0024] Preferably, a corresponding first lubrication structure is provided below the first housing lubrication interface, and the first lubrication structure is used to spray lubricating oil onto the transmission gear;

[0025] Below the lubrication interface of the second housing, there is a corresponding second lubrication structure, which is used to spray lubricating oil onto the transmission gear.

[0026] Preferably, the oil circuit integrated system applied to new energy commercial vehicles further includes a first temperature sensor, a second temperature sensor, and a third temperature sensor;

[0027] The oil circuit integrated cover plate is also provided with a first mounting hole, a second mounting hole and a third mounting hole;

[0028] 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;

[0029] The second mounting hole is adjacent to the first lubrication structure; the second temperature sensor is used to measure the second temperature of the gear lubricating oil flowing out of the first lubrication structure;

[0030] The third mounting hole, adjacent to the pipe connecting the oil outlet of the first filter and the first oil inlet of the second heat exchanger, is used to measure the third temperature of the lubricating oil inside the main housing.

[0031] Preferably, the third oil storage tank is provided with a stator lubrication structure and a rotor lubrication structure;

[0032] The stator lubrication structure is adjacent to the stator of the electric motor and is used to spray lubricating oil onto the stator;

[0033] The rotor lubrication structure is adjacent to the rotor of the electric motor and is used to spray lubricating oil onto the rotor;

[0034] The fourth oil storage tank is equipped with a gear lubrication structure;

[0035] The gear lubrication structure is located adjacent to the transmission gear and is used to spray lubricating oil onto the transmission gear.

[0036] Preferably, the oil circuit integration system applied to new energy commercial vehicles further includes a second filter;

[0037] 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.

[0038] On the other hand, this specification provides a new energy commercial vehicle, including the oil circuit integrated cover or the oil circuit integrated system applied to the new energy commercial vehicle provided by any of the above aspects.

[0039] The above-mentioned technical solutions adopted in this specification can achieve the following beneficial effects:

[0040] According to the above, the integrated oil circuit cover plate is provided with a first oil pump inlet channel, a first heat exchanger outlet channel, a second heat exchanger outlet channel, and a second oil pump inlet channel, all connecting its first surface to other surfaces. Furthermore, the first surface of the integrated oil circuit cover plate is provided with a first oil reservoir, a second oil reservoir, and inward interfaces for the first oil pump inlet channel, the second oil pump inlet channel, the first heat exchanger outlet channel, and the second heat exchanger outlet channel. The other sides of the oil circuit integrated cover plate are provided with a first oil pump outlet, a second oil pump outlet, a first heat exchanger liquid inlet, a first heat exchanger liquid outlet, a first heat exchanger oil inlet, a second heat exchanger, a first oil inlet, a second heat exchanger first oil outlet, a second heat exchanger second oil inlet, a first filter oil inlet, a first filter oil outlet a, an external liquid inlet, an external liquid outlet, and an external interface of the first oil pump inlet channel, the second oil pump inlet channel, the first heat exchanger oil outlet channel, and the second heat exchanger second oil outlet channel.

[0041] As can be seen, the aforementioned oil circuit integrated cover plate integrates various interfaces, enabling the main housing of the electric drive bridge to connect with equipment such as heat exchangers, electric pumps, and filters. Moreover, the oil circuit is simple, easy to maintain, and convenient to disassemble and assemble. Attached Figure Description

[0042] The accompanying drawings, which are included to provide a further understanding of this specification and form part of this specification, illustrate exemplary embodiments and are used to explain this specification, but do not constitute an undue limitation thereof. In the drawings:

[0043] Figure 1 A schematic diagram of the structure of the oil passage integrated cover plate 1 provided in one embodiment of this specification;

[0044] Figure 2 A schematic diagram of the structure of the oil passage integrated cover plate 1 provided in one embodiment of this specification;

[0045] Figure 3 A schematic diagram of the AA' section of the oil passage integrated cover plate 1 provided for one embodiment of this specification;

[0046] Figure 4 A schematic diagram showing the cutting position of section AA' provided for one embodiment of this specification;

[0047] Figure 5 A schematic diagram of the structure of an integrated oil circuit system for new energy commercial vehicles provided as an embodiment of this specification;

[0048] Figure 6A schematic diagram of the architecture of an integrated fuel system for new energy commercial vehicles, provided as an embodiment of this specification;

[0049] Figure 7 This is a partial structural schematic diagram of the main housing 2 provided for one embodiment of this specification.

[0050] Explanation of reference numerals in the attached figures:

[0051] 1. Oil circuit integrated cover plate; 2. Main housing; 3. Second heat exchanger; 4. First filter; 5. First electronic oil pump; 6. First heat exchanger; 10. Second electronic oil pump; 101. First oil pump inlet channel; 101a. First oil pump outlet; 102a. First filter inlet; 102a. First filter outlet; 103. First oil inlet of second heat exchanger; 104. First oil outlet of second heat exchanger; 111. Second oil inlet of second heat exchanger; 112. Second oil outlet channel of second heat exchanger; 108. Liquid inlet of first heat exchanger; 107. Liquid outlet of first heat exchanger; 105. Oil inlet of first heat exchanger; 106. External liquid inlet; 109. External liquid outlet; 110. Second oil storage tank; 113. First oil outlet channel of second heat exchanger. Inward interface 114; Second heat exchanger second oil outlet channel second inward interface 115; Motor oil reservoir 116; First internal channel 117; Second internal channel 118; Third internal channel 119; Fourth internal channel 120; Fifth internal channel 121; Sixth internal channel 122; Seventh internal channel 123; Second oil pump inlet channel 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 reservoir 205; Third oil reservoir 206; Motor stator oil inlet 207; Motor rotor oil inlet 208. Detailed Implementation

[0052] 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 and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this specification, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments in this specification without creative effort are within the scope of protection of this application.

[0053] In the description of this invention, it should be noted that the term "or" is generally used to include the meaning of "and / or" unless otherwise expressly stated in the content.

[0054] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. Furthermore, in the description of this application, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0055] Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0056] The technical solutions provided in the various embodiments of this specification are described in detail below with reference to the accompanying drawings.

[0057] This manual provides an integrated oil passage cover.

[0058] Preferably, the oil circuit integrated cover plate is provided with a first oil pump inlet channel, a first heat exchanger outlet channel, a second heat exchanger outlet channel, and a second oil pump inlet channel that connect its first surface to other surfaces.

[0059] Preferably, the first side of the oil circuit integrated cover plate is provided with a first oil storage tank, a second oil storage tank, and an inward interface of the first oil pump inlet channel, an inward interface of the second oil pump inlet channel, an inward interface of the first heat exchanger outlet channel, and an inward interface of the second heat exchanger outlet channel.

[0060] Preferably, the other sides of the oil circuit integrated cover are provided with a first oil pump outlet, a second oil pump outlet, a first heat exchanger liquid inlet, a first heat exchanger liquid outlet, a first heat exchanger oil inlet, a second heat exchanger, a first oil inlet, a second heat exchanger first oil outlet, a second heat exchanger second oil inlet, a first filter oil inlet, a first filter oil outlet, an external liquid inlet, an external liquid outlet, and an external interface for the first oil pump inlet channel, the second oil pump inlet channel, the first heat exchanger oil outlet channel, and the second heat exchanger oil outlet channel.

[0061] Figure 1 A schematic diagram of the structure of the oil passage integrated cover plate 1 provided in one embodiment of this specification is shown below. Figure 1As shown, the other sides of the oil circuit integrated cover plate 1 are 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 second heat exchanger first inlet 103, a second heat exchanger first outlet 104, a second heat exchanger second inlet 111, a second heat exchanger second outlet channel 112, a first heat exchanger liquid inlet 108, a first heat exchanger liquid outlet 107, a first heat exchanger oil inlet 105, a first heat exchanger oil outlet channel 106, 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.

[0062] Preferably, the first oil pump outlet 101a, the second oil pump outlet 125, the first heat exchanger inlet 108, the first heat exchanger outlet 107, the first heat exchanger oil inlet 105, the second heat exchanger 3, the first oil inlet, the second heat exchanger first outlet 104, the second heat exchanger second inlet 111, the first filter inlet 102, the first filter outlet 102a, and the external inlet 109 are all located on the second side of the oil circuit integrated cover plate 1, and the external inlet 109 and the external outlet 110 are located on the third side of the oil circuit integrated cover plate 1. The second side and the third side face opposite directions, and the direction of the third side is perpendicular to the directions of both the first side and the second side.

[0063] Figure 2 A schematic diagram of the structure of the oil passage integrated cover plate 1 provided in one embodiment of this specification is shown below. Figure 2 As shown, the first side of the integrated oil circuit cover plate 1 is provided with a first oil pump inlet channel 101, a first heat exchanger outlet channel 106, 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. The third side is provided with an external liquid inlet 109 and an external liquid outlet 110.

[0064] Preferably, the oil outlet 101a of the first oil pump is connected to the oil inlet 102 of the first filter.

[0065] Preferably, the oil outlet 102a of the first filter is connected to the first oil inlet 103 of the second heat exchanger.

[0066] Preferably, the second oil outlet of the second heat exchanger 3 is connected to the oil inlet channel of the second oil pump.

[0067] Preferably, the external liquid inlet 109 is connected to the liquid inlet 108 of the first heat exchanger.

[0068] Preferably, the external liquid outlet 110 is connected to the external liquid outlet 110 of the first heat exchanger 6.

[0069] Preferably, the second oil inlet 111 of the second heat exchanger is connected to the oil outlet 125 of the second oil pump.

[0070] Preferably, the first oil outlet 104 of the second heat exchanger is connected to the oil inlet 105 of the first heat exchanger.

[0071] Figure 3 A schematic diagram of the AA' section of the oil passage integrated cover plate 1 provided for one embodiment of this specification. Figure 4 This is a schematic diagram showing the location of the section AA' as provided in one embodiment of this specification. Figure 3 As shown, the oil circuit integrated cover plate 1 contains 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, a seventh internal channel 123, and a seventh internal channel 123.

[0072] Preferably, the oil circuit integrated cover plate 1 is also provided with a first mounting hole 126, a second mounting hole 127 and a third mounting hole 128.

[0073] 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.

[0074] Preferably, the second mounting hole 127 is adjacent to the first lubrication structure; the second temperature sensor is used to measure the second temperature of the gear lubricating oil flowing out of the first lubrication structure.

[0075] Preferably, the third mounting hole 128 is adjacent to the pipe connecting the oil outlet 102a of the first filter and the first oil inlet 103 of the second heat exchanger, and is used to measure the third temperature of the lubricating oil in the main housing 2.

[0076] According to the above, the oil circuit integrated cover plate 1 is provided with a first oil pump inlet channel 101, a first heat exchanger outlet channel 106, a second heat exchanger outlet channel 112, and a second oil pump inlet channel 124, which connect its first surface with other surfaces. Furthermore, 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, and inward interfaces for the first oil pump inlet channel 101, the second oil pump inlet channel 124, the first heat exchanger outlet channel 106, and the second heat exchanger outlet channel 112. The other sides of the oil circuit integrated cover plate 1 are provided with a first oil pump outlet 101a, a second oil pump outlet 125, a first heat exchanger liquid inlet 108, a first heat exchanger liquid outlet 107, a first heat exchanger oil inlet 105, a second heat exchanger 3, a first oil inlet, a second heat exchanger first oil outlet 104, a second heat exchanger second oil inlet 111, a first filter oil inlet 102, a first filter oil outlet 102a, an external liquid inlet 109, an external liquid outlet 110, and an external interface of the first oil pump inlet channel 101, the second oil pump inlet channel 124, the first heat exchanger oil outlet channel 106, and the second heat exchanger second oil outlet channel 112.

[0077] As can be seen, the aforementioned oil circuit integrated cover plate 1 integrates various interfaces, enabling the main housing 2 of the electric drive bridge to connect with equipment such as heat exchangers, electric pumps, and filters. Moreover, the oil circuit is simple, easy to maintain, and convenient to disassemble and assemble.

[0078] Preferably, the inward interface of the oil outlet channel 106 of the first heat exchanger is located at the bottom of the first oil storage tank.

[0079] Preferably, the second oil outlet channel 112 of the second heat exchanger has three inward interfaces, and one of the inward interfaces is located at the bottom of the second oil storage tank 113.

[0080] The above describes one or more embodiments of the oil circuit integrated cover plate 1 provided in this specification. Based on the same idea, this specification also provides a corresponding oil circuit integrated system applied to new energy commercial vehicles.

[0081] Preferably, the oil circuit integration system for new energy commercial vehicles includes the oil circuit integration cover plate 1 provided in any of the above embodiments, as well as the main housing 2, 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.

[0082] Figure 5 A schematic diagram of the structure of an integrated fuel system for new energy commercial vehicles, provided as an embodiment of this specification, is shown below. Figure 5As shown, the oil circuit integrated system applied to new energy commercial vehicles includes a main housing 2, an oil circuit integrated 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.

[0083] Preferably, the oil circuit integrated cover plate 1 is fixedly connected to the main housing 2.

[0084] Preferably, the oil circuit integrated cover 1 is installed on the top, side and bottom of the main housing 2.

[0085] Preferably, the oil circuit integrated cover 1 is installed on the top of the main housing 2 for easy maintenance.

[0086] Preferably, the oil passage integrated cover 1 is installed on the top of the main housing 2, with its outer surface exposed and its bottom surface facing the interior of the main housing 2. Figure 6 As shown.

[0087] Preferably, the first side of the oil passage integrated cover 1 faces the interior of the main housing 2, while the other sides are exposed.

[0088] Figure 6 A schematic diagram of the architecture of an integrated fuel system for new energy commercial vehicles, provided as an embodiment of this specification, is shown below. Figure 6 As 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 disposed on the integrated cover plate 1 leading to the oil circuit.

[0089] 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, as well as a first housing oil outlet port 201, a second housing oil outlet port 202, a first housing lubrication port 203, and a second housing lubrication port 204.

[0090] Preferably, the oil outlet 101a of the first oil pump and the outward interface of the oil inlet channel 101 of the first oil pump are detachably connected to the first electronic oil pump 5.

[0091] Preferably, the oil outlet 125 of the second oil pump and the outward interface of the oil inlet channel 124 of the second oil pump are both detachably connected to the second electronic oil pump 10.

[0092] Preferably, the liquid inlet 108, liquid outlet 107, oil inlet 105, and outward interface of the oil outlet channel 106 of the first heat exchanger are all detachably connected to the first heat exchanger 6.

[0093] Preferably, the first oil inlet 103, the first oil outlet 104, the second oil inlet 111, and the outward interface of the second oil outlet channel 112 of the second heat exchanger are all detachably connected to the second heat exchanger 3.

[0094] Preferably, the oil inlet 102 and the oil outlet 102a of the first filter are detachably connected to the first filter 4.

[0095] Preferably, the external liquid inlet 109 and the external liquid outlet 110 are both detachably connected to the cooling circulation system of the new energy commercial vehicle and are both used to transfer cooling liquid.

[0096] Preferably, the first housing oil outlet 201 corresponds to the inward interface of the first oil pump inlet channel 101, that is, the first housing oil outlet 201 and the inward interface of the first oil pump inlet channel 101 are detachably connected.

[0097] Preferably, the oil outlet port 202 of the second housing corresponds to the inward port of the oil inlet channel 124 of the second oil pump. That is, the oil outlet port 202 of the second housing and the inward port of the oil inlet channel 124 of the second oil pump are detachably connected.

[0098] Preferably, the first housing lubrication port 203 and the second housing lubrication port 204 correspond to the two inward ports located outside the second oil storage tank 113 of the three inward ports of the second oil outlet channel of the two heat exchangers, respectively. That is, the first housing lubrication port 203 and the second housing lubrication port 204 are detachably connected to the two inward ports located outside the second oil storage tank 113 of the three inward ports of the second oil outlet channel of the two heat exchangers.

[0099] Figure 7 A partial structural schematic diagram of the main housing 2 provided for one embodiment of this specification is shown below. Figure 7 As shown, the main housing 2 is provided with a first housing oil outlet 201, a second housing oil outlet 202, a first housing lubrication interface 203, a second housing lubrication interface 204, a fourth oil reservoir 205, a third oil reservoir 206, a motor stator oil inlet 207, and a motor rotor oil inlet 208.

[0100] Preferably, a corresponding first lubrication structure is provided below the first housing lubrication interface 203, which is used to spray lubricating oil onto the transmission gear.

[0101] Preferably, a corresponding second lubrication structure is provided below the second housing lubrication interface 204, which is used to spray lubricating oil onto the transmission gear.

[0102] Preferably, the oil circuit integrated system for new energy commercial vehicles also includes a first temperature sensor, a second temperature sensor, and a third temperature sensor.

[0103] Preferably, the third oil reservoir is provided with a stator lubrication structure and a rotor lubrication structure.

[0104] Preferably, the stator lubrication structure is located adjacent to the stator of the electric motor and is used to spray lubricating oil onto the stator.

[0105] Preferably, the rotor lubrication structure is located adjacent to the rotor of the electric motor and is used to spray lubricating oil onto the rotor.

[0106] Preferably, the fourth oil reservoir 205 is provided with a gear lubrication structure.

[0107] Preferably, the gear lubrication structure is adjacent to the transmission gear and is used to spray lubricating oil onto the transmission gear.

[0108] Preferably, the oil circuit integration system for new energy commercial vehicles also includes a second filter.

[0109] 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.

[0110] Preferably, the filter size of the second filter is larger than the filter size of the first filter 4.

[0111] Preferably, the first electronic oil pump 5, configured on the oil circuit integrated cover plate 1, can pump motor lubricating oil from inside the main housing 2 through the first oil pump inlet channel 101 on the oil circuit integrated cover plate 1 and the first housing outlet port 201 provided on the main housing 2. The motor lubricating oil is then fed into the first filter 4 through the first oil pump outlet port 101a and the first filter inlet port 102. After passing through the first filter 4, the motor lubricating oil then passes through the first filter... The oil outlet 102a and the first oil inlet 103 of the second heat exchanger enter the second heat exchanger 3. After heat exchange is completed, the motor lubricating oil enters the first heat exchanger 6 through the first oil outlet 104 and the first oil inlet 105 of the second heat exchanger. After heat exchange is completed, the motor lubricating oil enters the motor oil storage tank 116 through the oil outlet channel 106 of the first heat exchanger, and is sprayed onto the surface of the motor stator and motor rotor through the motor stator oil inlet 207 and the motor rotor oil inlet 208. The second electronic oil pump 10, configured on the oil circuit integrated cover plate 1, can pump gear lubricating oil from inside the main housing 2 into the main housing 2 through the second oil pump inlet channel 124 on the oil circuit integrated cover plate 1 and the second housing outlet port 202 provided on the main housing 2. The gear lubricating oil enters the second heat exchanger 3 through the second oil pump outlet port 125 and the second inlet port 111 of the second heat exchanger. After heat exchange is completed, the gear lubricating oil enters the second oil storage tank 113 through the second outlet channel 112 of the second heat exchanger and is sprayed onto the gear surface through the first housing lubrication port 203 and the second housing lubrication port 204.

[0112] The above are one or more embodiments of the oil circuit integration system for new energy commercial vehicles provided in this specification. Based on the same idea, this specification also provides corresponding new energy commercial vehicles.

[0113] Preferably, the new energy commercial vehicle includes the oil circuit integration system for new energy commercial vehicles provided in any of the above embodiments.

[0114] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0115] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0116] The above description is merely an embodiment of this specification and is not intended to limit this specification. Various modifications and variations can be made to this specification by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this specification should be included within the scope of the claims of this application.

Claims

1. An integrated oil passage cover, characterized in that, The oil circuit integrated cover plate is provided with a first oil pump inlet channel, a first heat exchanger outlet channel, a second heat exchanger outlet channel, and a second oil pump inlet channel, which connect its first surface with other surfaces. The first side of the oil circuit integrated cover plate is provided with a first oil storage tank, a second oil storage tank, and an inward interface of the first oil pump inlet channel, an inward interface of the second oil pump inlet channel, an inward interface of the first heat exchanger outlet channel, and an inward interface of the second heat exchanger outlet channel. The other sides of the oil circuit integrated cover plate are provided with a first oil pump outlet, a second oil pump outlet, a first heat exchanger liquid inlet, a first heat exchanger liquid outlet, a first heat exchanger oil inlet, a second heat exchanger, a first oil inlet, a second heat exchanger first oil outlet, a second heat exchanger first oil inlet, a second heat exchanger second oil inlet, a first filter oil inlet, a first filter oil outlet, an external liquid inlet, an external liquid outlet, and an external interface for the first oil pump inlet channel, the second oil pump inlet channel, the first heat exchanger oil outlet channel, and the second heat exchanger second oil outlet channel.

2. The integrated oil passage cover plate according to claim 1, characterized in that, The inward interface of the oil outlet channel of the first heat exchanger is located at the bottom of the first oil storage tank; The second heat exchanger has three inward interfaces for the second oil outlet channel, and one of these inward interfaces is located at the bottom of the second oil storage tank.

3. The integrated oil passage cover plate according to claim 1, characterized in that, The oil outlet of the first oil pump is connected to the oil inlet of the first filter; The oil outlet of the first filter is connected to the first oil inlet of the second heat exchanger; The second oil outlet of the second heat exchanger is connected to the oil inlet channel of the second oil pump; The external liquid inlet is connected to the liquid inlet of the first heat exchanger; 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 oil outlet of the second oil pump.

4. A fuel system integrated for new energy commercial vehicles, characterized in that, It includes the oil circuit integrated cover plate as described in claim 1, 2 or 3, as well as the main housing, the first electronic oil pump, the second electronic oil pump, the first heat exchanger, the second heat exchanger and the first filter.

5. The integrated fuel system for new energy commercial vehicles according to claim 4, characterized in that, The oil passage integrated cover plate is fixedly connected to the main housing, and the first surface of the oil passage integrated cover plate faces the inside of the main housing; 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, as well as an oil outlet port for the first housing, an oil outlet port for the second housing, a lubrication port for the first housing, and a lubrication port for the second housing. The oil outlet of the first housing corresponds to the inward interface of the oil inlet channel of the first oil pump; The oil outlet of the second housing corresponds to the inward interface of the oil inlet channel of the second oil pump; The first housing lubrication interface and the second housing lubrication interface correspond to the two inward interfaces located outside the second oil storage tank among the three inward interfaces of the second oil outlet channel of the second heat exchanger.

6. The integrated fuel system for new energy commercial vehicles according to claim 5, characterized in that, Below the first housing lubrication interface, there is a corresponding first lubrication structure, which is used to spray lubricating oil onto the transmission gear. Below the lubrication interface of the second housing, there is a corresponding second lubrication structure, which is used to spray lubricating oil onto the transmission gear.

7. The integrated fuel system for new energy commercial vehicles according to claim 6, characterized in that, The oil circuit integrated system applied to new energy commercial vehicles also includes a first temperature sensor, a second temperature sensor, and a third temperature sensor; The oil circuit integrated cover plate is also 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 lubrication structure; the second temperature sensor is used to measure the second temperature of the gear lubricating oil flowing out of the first lubrication structure; The third mounting hole, adjacent to the pipe connecting the oil outlet of the first filter and the first oil inlet of the second heat exchanger, is used to measure the third temperature of the lubricating oil inside the main housing.

8. The integrated fuel system for new energy commercial vehicles according to claim 5 or 6, characterized in that, The third oil storage tank is equipped with a stator lubrication structure and a rotor lubrication structure; The stator lubrication structure is adjacent to the stator of the electric motor and is used to spray lubricating oil onto the stator; The rotor lubrication structure is adjacent to the rotor of the electric motor and is used to spray lubricating oil onto the rotor; The fourth oil storage tank is equipped with a gear lubrication structure; The gear lubrication structure is located adjacent to the transmission gear and is used to spray lubricating oil onto the transmission gear.

9. The integrated fuel system for new energy commercial vehicles according to claim 4, 5, or 6, characterized in that, The oil circuit integrated system applied to new energy commercial vehicles also 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 for filtering the gear lubricating oil in the transmission.

10. A new energy commercial vehicle, characterized in that, Includes the oil circuit integrated cover plate according to any one of claims 1-3, or the oil circuit integrated system applied to new energy commercial vehicles according to any one of claims 4-9.

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