Oil cooler and automobile

Abstract

The invention belongs to the technical field of heat dissipation of automobiles, and particularly relates to an oil cooler and an automobile, the oil cooler comprises a shell, the shell comprises a bottom plate and a cover plate which define a closed cavity, and a water inlet, a water outlet, an oil inlet and an oil outlet are formed in the shell; the liquid cooling pipeline comprises a radiating pipe, a first collecting pipe and a second collecting pipe which are arranged in the shell; a water flow channel is formed in the liquid cooling pipeline, and a gap is at least reserved between the heat dissipation pipe and the cover plate or the bottom plate to form an oil flow channel. According to the oil cooler, only one layer of liquid cooling pipeline is arranged in the shell, so that the water flow channel and the oil flow channel form a single-layer structure, the stacking height of the oil cooler can be reduced, and the installation space occupied by the oil cooler is reduced. The flowing directions of the water medium and the oil medium in the oil cooler are distributed in a staggered mode, and the heat dissipation effect of the oil cooler can be guaranteed. The oil cooler is simple in structure, the workload of structural design and die development can be reduced, and the production cost can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of heat dissipation of automobiles, and in particular to an oil cooler and an automobile. Background Art

[0002] Existing oil coolers usually adopt a stacked structure, and the oil cooler includes multiple layers of oil circuits and multiple layers of water circuits arranged in a staggered manner. Specifically, in the stacking direction, the oil cooler usually includes a layer of water circuit and a layer of oil circuit arranged alternately. Because the stacking height is directly related to the heat dissipation power, when the heat dissipation demand is greater, the height of the oil cooler is higher, resulting in a larger installation space occupied by the oil cooler, which in turn affects the layout of the entire vehicle. Summary of the invention

[0003] Based on this, in order to improve the problem that the traditional oil cooler occupies a large space, the present invention provides an oil cooler and a car.

[0004] According to an embodiment provided by the present invention, a first aspect provides an oil cooler, comprising:

[0005] A shell, comprising a bottom plate and a cover plate forming a closed cavity, wherein a water inlet, a water outlet, an oil inlet and an oil outlet are provided on the shell; and

[0006] A liquid cooling pipeline, comprising a heat dissipation pipe, a first header and a second header arranged inside the shell; the longitudinal direction of the heat dissipation pipe extends along the X direction, and the heat dissipation pipes are arranged in parallel along the Y direction; the liquid inlet end of the heat dissipation pipe is connected to the first header, and the liquid outlet end of the heat dissipation pipe is connected to the second header;

[0007] A water flow channel is formed inside the liquid cooling pipe, and an oil flow channel is formed outside the liquid cooling pipe. A gap is left between the heat dissipation pipe and at least the cover plate or the bottom plate to allow the oil medium to flow through; the first collecting pipe is connected to the water inlet, and the second collecting pipe is connected to the water outlet; the oil inlet and the oil outlet are correspondingly distributed on both sides of the liquid cooling pipe along the Y direction.

[0008] In some embodiments, the cover plate is provided with a first guide groove protruding upward along the X direction corresponding to the heat dissipation tube; the bottom plate is provided with a second guide groove recessed downward along the X direction corresponding to the heat dissipation tube, and the first guide groove and the second guide groove are alternately arranged along the Y direction to guide the oil medium to pass over the heat dissipation tube along the Y direction.

[0009] In some embodiments, the oil inlet and the oil outlet are disposed correspondingly close to the first header and the second header, so that the oil inlet and the oil outlet are diagonally distributed.

[0010] In some embodiments, cross-sections of the first guide groove and the second guide groove are semicircular arc-shaped.

[0011] In some embodiments, a cross section of the heat dissipation pipe is flat in the vertical direction, and a top and a bottom of the heat dissipation pipe are conical.

[0012] In some embodiments, strip-shaped heat sinks are provided between the heat dissipation tubes. The heat sinks are in a bent trapezoidal tooth shape in the longitudinal direction. The heat sinks include abutment sections for contacting adjacent heat dissipation tubes and a bending section for connecting the abutment sections.

[0013] In some embodiments, the oil cooler includes at least two groups of liquid cooling pipes arranged in an array along the X direction and / or the Y direction; in the X direction, a partition is arranged between adjacent liquid cooling pipes; in the Y direction, a guide plate is arranged between adjacent liquid cooling pipes, the liquid inlet end of the guide plate is used to connect to the water inlet and / or the adjacent second header, and the liquid outlet end of the guide plate is used to connect to the water outlet and / or the adjacent first header; the oil inlet and the oil outlet are arranged on both sides of the liquid cooling pipe in the Y direction.

[0014] In some embodiments, the oil cooler includes two groups of liquid cooling pipes arrayed along the X direction and two groups of liquid cooling pipes arrayed along the Y direction, wherein a first guide plate is arranged between the first group of liquid cooling pipes and the second group of liquid cooling pipes, and a second guide plate is arranged between the third group of liquid cooling pipes and the fourth group of liquid cooling pipes; partitions are arranged between the first group of liquid cooling pipes and the third group of liquid cooling pipes and between the second group of liquid cooling pipes and the fourth group of liquid cooling pipes.

[0015] In some embodiments, the water inlet is close to the liquid inlet end of the first guide plate, and the water outlet is close to the liquid outlet end of the second guide plate;

[0016] A first group of oil inlets is arranged on a side of the second group of liquid cooling pipes away from the first group of liquid cooling pipes, and a first group of oil outlets is arranged on a side of the first group of liquid cooling pipes away from the second group of liquid cooling pipes; wherein the first group of oil inlets is close to the second header of the second group of liquid cooling pipes, and the first group of oil outlets is close to the first header of the first group of liquid cooling pipes;

[0017] A second group of oil inlets is arranged on a side of the fourth group of liquid cooling pipes away from the third group of liquid cooling pipes, and a second group of oil outlets is arranged on a side of the third group of liquid cooling pipes away from the fourth group of liquid cooling pipes, wherein the second group of oil inlets is close to the first collecting pipe of the fourth group of liquid cooling pipes, and the second group of oil outlets is close to the second collecting pipe of the third group of liquid cooling pipes.

[0018] According to an embodiment provided by the present invention, a second aspect provides a car, which includes an electric drive assembly and a controller, wherein the controller includes a box body, a cover body and a power device, and the cover body is integrated with the aforementioned oil cooler.

[0019] The oil cooler of the present invention is provided with a layer of liquid cooling pipe inside the shell, the space inside the liquid cooling pipe constitutes a water flow channel, and the outer space of the liquid cooling pipe constitutes an oil flow channel, so that the water flow channel and the oil flow channel are a single-layer structure. The oil cooler of the present invention eliminates the stacked oil cooling layer and water cooling layer, which can reduce the stacking height of the oil cooler, reduce the installation space occupied by the oil cooler, and optimize the structure of the oil cooler. The flow directions of the water medium and the oil medium in the oil cooler are staggered, which can ensure the heat dissipation effect of the oil cooler. The oil cooler has a simple structure, which can reduce the workload of structural design and mold development, and help reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the front side of the oil cooler of this embodiment;

[0021] Figure 2 is a schematic structural diagram of the back side of the oil cooler of this embodiment;

[0022] Figure 3 is a schematic structural diagram of a partial cross section of the oil cooler of this embodiment;

[0023] Figure 4 Schematic diagram of the internal structure of the oil cooler of this embodiment.

[0024] In the figure: a cover plate 10; a first guide groove 11; a bottom plate 20; a second guide groove 21; a heat dissipation pipe 30; a first header 31; a second header 32; a first group of liquid cooling pipes 33; a second group of liquid cooling pipes 34; a third group of liquid cooling pipes 35; a fourth group of liquid cooling pipes 36; a water inlet 40; a water outlet 41; an oil inlet 42; an oil outlet 43; a heat sink 50; a first guide plate 60; a second guide plate 61; and a partition 70. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology, and are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportion or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0027] The directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "middle", "longitudinal", "lateral", "horizontal", "inner", "outer", "radial", "circumferential" and the like in this specification are based on the directions or positional relationships shown in the drawings and are only for the convenience of simplifying the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0028] like Figures 1 to 4 As shown, this embodiment provides an oil cooler, which includes a shell and a liquid cooling pipe. The shell of this embodiment is in the shape of a hollow plate, specifically including a bottom plate 20 and a cover plate 10, and a closed cavity is formed between the bottom plate 20 and the cover plate 10. The shell is provided with a water inlet 40, a water outlet 41, an oil inlet 42 and an oil outlet 43 for corresponding water medium and oil medium to circulate in the oil cooler.

[0029] The liquid cooling pipe of this embodiment is arranged inside the shell, and a water flow channel is formed inside the liquid cooling pipe, and an oil flow channel is formed between the outside of the liquid cooling pipe and the cavity. Water medium is supplied to the water flow channel through the water inlet 40, and oil medium is supplied to the oil flow channel through the oil inlet 42, so that the water medium and the oil medium perform heat exchange in the oil cooler to dissipate heat and cool the oil medium.

[0030] See Figure 3 and Figure 4 The liquid cooling pipeline of this embodiment includes a plurality of heat dissipation tubes 30 arranged in parallel along the Y direction, a first header 31 provided at the liquid inlet end of the heat dissipation tube 30, and a second header 32 provided at the liquid outlet end of the heat dissipation tube 30. The longitudinal direction of the heat dissipation tube 30 is oriented in the X direction, and the plurality of heat dissipation tubes 30 are arranged at intervals in the Y direction. The longitudinal directions of the first header 31 and the second header 32 are oriented in the Y direction. The first header 31 is connected to the water inlet 40, and the second header 32 is connected to the water outlet 41. The water medium entering from the water inlet 40 first enters the first header 31, and the water medium in the first header 31 is divided along the Y direction to the liquid inlet end of the plurality of heat dissipation tubes 30. The water medium in the heat dissipation tube 30 then flows along the X direction to the liquid outlet end, and then gathers in the second header 32 along the Y direction. The water medium in the second header 32 can be discharged from the water outlet 41.

[0031] In this embodiment, a gap is left between the heat dissipation pipe 30 and at least the cover plate 10 or the bottom plate 20 for the oil medium to flow through. The oil inlet 42 and the oil outlet 43 are correspondingly distributed on both sides of the liquid cooling pipe along the Y direction, so that the flow direction of the oil medium and the flow direction of the cooling water in the heat dissipation pipe 30 are staggered with each other, ensuring that the oil medium and the water medium can fully exchange heat, and the water medium can effectively use the water medium to dissipate heat from the oil medium.

[0032] The oil inlet 42 and the oil outlet 43 of the present embodiment are preferably arranged correspondingly close to the first collecting pipe 31 and the second collecting pipe 32, so that the oil inlet 42 and the oil outlet 43 are diagonally distributed. The diagonally distributed oil inlet 42 and the oil outlet 43 can make the oil medium flow a longer distance, extend the heat exchange time between the oil medium and the water medium, and help improve the heat dissipation effect of the oil medium.

[0033] It should be noted that there are many ways to intersect the flow directions of the water medium and the oil medium. For example, the oil medium can flow only from the top of the heat dissipation tube 30 along the Y direction, or can flow only from the bottom of the heat dissipation tube 30 along the Y direction, or can flow from the top and bottom of the heat dissipation tube 30 at the same time or crosswise.

[0034] The cover plate 10 of this embodiment is provided with a first guide groove 11 protruding upwards along the X direction corresponding to the heat dissipation tube 30; the bottom plate 20 is provided with a second guide groove 21 concave downwards along the X direction corresponding to the heat dissipation tube 30, and the first guide groove 11 and the second guide groove 21 are alternately arranged along the Y direction to guide the oil medium to pass over the heat dissipation tube 30 along the Y direction. The alternate arrangement of the first guide groove 11 and the second guide groove 21 of this embodiment specifically means that in two adjacent heat dissipation tubes 30, one of the heat dissipation tubes 30 is provided with a first guide groove 11, and the other heat dissipation tube 30 is provided with a second guide groove 21. For example, the first guide groove 11 of this embodiment is arranged above the first, third, fifth ... odd-numbered heat dissipation tubes 30 arranged along the Y direction, and the second guide groove 21 is arranged below the second, fourth, sixth ... even-numbered heat dissipation tubes 30 arranged along the Y direction. Since the guide groove is used to guide the oil medium to pass through the heat dissipation pipe 30 along the Y direction, the first guide groove 11 and the second guide groove 21 arranged alternately can make the oil medium flow through the heat dissipation pipe 30 mainly in a wavy path in the Y direction, further increasing the flow path of the oil medium in the oil cooler and extending the heat exchange time between the oil medium and the water medium.

[0035] In this embodiment, the water medium mainly flows in a straight path inside the heat dissipation tube 30, and the oil medium mainly flows in a wavy path outside the heat dissipation tube 30. The path of the water medium in the heat dissipation tube 30 is relatively short, and the path of the oil medium is relatively long. The replacement speed of the water medium is faster, which helps to maintain the temperature difference between the water medium and the oil medium, so that the water medium can fully take away the heat of the oil medium, further ensuring the heat dissipation effect of the oil medium.

[0036] The cross section of the heat dissipation pipe 30 of this embodiment is flat in the vertical direction. The top and bottom areas of the flat heat dissipation pipe 30 are small, and the oil medium is more likely to cross the top and bottom of the heat dissipation pipe 30, thereby forming a wave-like flow path. The two side surfaces of the heat dissipation pipe 30 have relatively large flat surfaces, which can reduce the flow resistance of the oil medium. It should be noted that the cross section of the heat dissipation pipe 30 can also be designed into other conventional shapes such as circular and rectangular according to requirements.

[0037] In the present embodiment, strip-shaped heat sinks 50 are also provided between the heat dissipation tubes 30. The heat sinks 50 are provided between the heat dissipation tubes 30 to increase the contact area with the oil medium. The heat sink 50 in the present embodiment is preferably in a bent trapezoidal tooth shape in the longitudinal direction, so that the heat sink 50 includes an abutment section for contacting adjacent heat dissipation tubes 30 and a bending section for connecting the abutment section. The abutment section abuts against the two side surfaces of the heat dissipation tube 30. Especially for the flat heat dissipation tube 30, the contact area between the abutment section and the heat dissipation tube 30 is large, which can ensure the heat conduction effect between the heat sink 50 and the heat dissipation tube 30. A channel for the flow of the oil medium can be formed between the two adjacent bending sections to guide the oil medium to flow between the adjacent heat dissipation tubes 30.

[0038] The cross-sections of the first guide groove 11 and the second guide groove 21 of this embodiment are preferably semicircular, so that the inner wall of the guide groove has a smooth profile, which is convenient for guiding the flow of the oil medium. The top and bottom of the heat dissipation pipe 30 are preferably conical, so that the top and bottom of the heat dissipation pipe 30 have inclined surfaces to guide the oil medium, so that the oil medium passes through the first guide groove 11 and the top of the heat dissipation pipe 30 and the second guide groove 21 and the bottom of the heat dissipation pipe 30.

[0039] The oil cooler of this embodiment includes at least two groups of liquid cooling pipes arranged in an array along the X direction and / or the Y direction. In the X direction, a partition 70 is arranged between adjacent liquid cooling pipes; in the Y direction, a guide plate is arranged between adjacent liquid cooling pipes, and the liquid inlet end of the guide plate is used to connect to the water inlet 40 and / or the adjacent second header 32, and the liquid outlet end of the guide plate is used to connect to the water outlet 41 and / or the adjacent first header 31. The oil inlet 42 and the oil outlet 43 are arranged on both sides of each column of liquid cooling pipes in the Y direction. Since the liquid cooling pipes in the X direction are separated by the partition 70, the liquid cooling pipes in each column can only exchange heat with the oil medium flowing through the column, so it is necessary to separately arrange the oil inlet 42 and the oil outlet 43 on both sides of each column of liquid cooling pipes.

[0040] See Figure 4 The oil cooler of this embodiment includes two groups of liquid cooling pipes arrayed along the X direction and two groups of liquid cooling pipes arrayed along the Y direction. A total of four groups of liquid cooling pipes are arranged in the oil cooler, wherein a first guide plate 60 is arranged between the first group of liquid cooling pipes 33 and the second group of liquid cooling pipes 34, and a second guide plate 61 is arranged between the third group of liquid cooling pipes 35 and the fourth group of liquid cooling pipes 36; a partition plate 70 is arranged between the first group of liquid cooling pipes 33 and the third group of liquid cooling pipes 35 and between the second group of liquid cooling pipes 34 and the fourth group of liquid cooling pipes 36.

[0041] The water inlet 40 of this embodiment is close to the liquid inlet end of the first guide plate 60, and the water outlet 41 is close to the liquid outlet end of the second guide plate 61. The water medium in the water inlet 40 flows through the first header 31, the heat dissipation tube 30 and the second header 32 in the first group of liquid cooling pipes 33, and then enters the liquid inlet end of the second guide plate 61, and then is discharged from the liquid outlet end of the second guide plate 61 and the water outlet 41; the water medium in the water inlet 40 flows through the first header 31, the heat dissipation tube 30 and the second header 32 in the second group of liquid cooling pipes 34, and then enters the liquid inlet end of the second guide plate 61, and then is discharged from the liquid outlet end of the second guide plate 61 and the water outlet 41; the water medium in the water inlet 40 flows through the liquid outlet end of the first guide plate 60, and then flows through the first header 31, the heat dissipation tube 30 and the second header 32 in the third group of liquid cooling pipes 35, and then is discharged from the water outlet 41. It should be noted that the number of liquid cooling pipes arrayed along the X direction and / or the Y direction can be adjusted according to actual needs, which will not be described in detail in this embodiment.

[0042] The oil cooler of this embodiment includes two groups of oil inlets 42 and two groups of oil outlets 43, wherein the first group of oil inlets 42 is arranged on the side of the second group of liquid cooling pipes 34 away from the first group of liquid cooling pipes 33, and the first group of oil outlets 43 is arranged on the side of the first group of liquid cooling pipes 33 away from the second group of liquid cooling pipes 34. The first group of oil inlets 42 is close to the second header 32 of the second group of liquid cooling pipes 34, and the first group of oil outlets 43 is close to the first header 31 of the first group of liquid cooling pipes 33, so that the first group of oil inlets 42 and the first group of oil outlets 43 are diagonally distributed. In this embodiment, a second group of oil inlets 42 are arranged on a side of the fourth group of liquid cooling pipes 36 away from the third group of liquid cooling pipes 35, and a second group of oil outlets 43 are arranged on a side of the third group of liquid cooling pipes 35 away from the fourth group of liquid cooling pipes 36, wherein the second group of oil inlets 42 are close to the first collecting pipe 31 of the fourth group of liquid cooling pipes 36, and the second group of oil outlets 43 are close to the second collecting pipe 32 of the third group of liquid cooling pipes 35, such that the second group of oil inlets 42 and the second group of oil outlets 43 are diagonally distributed.

[0043] The oil medium of this embodiment enters into the oil cooler from the first group of oil inlets 42 and the second group of oil inlets 42. The oil medium in the first group of oil inlets 42 passes through the heat dissipation tubes 30 of the second group of liquid cooling pipes 34, the first guide plate 60 and the heat dissipation tubes 30 of the first group of liquid cooling pipes 33 in a wavy path in sequence, and then is discharged from the first oil outlet 43; the oil medium in the second group of oil inlets 42 passes through the heat dissipation tubes 30 of the fourth group of liquid cooling pipes 36, the second guide plate 61 and the heat dissipation tubes 30 of the third group of liquid cooling pipes 35 in a wavy path, and then is discharged from the second oil outlet 43.

[0044] The water inlet 40, water outlet 41, oil inlet 42 and oil outlet 43 of this embodiment are preferably centrally arranged at the bottom of the base plate 20 to facilitate the connection of pipes. The heat dissipation pipe 30 is preferably formed by buckling two halves of a pipe body, which is formed by stamping an aluminum alloy plate; the heat dissipation pipe 30 is welded with the first header 31 and the second header 32 to form a liquid cooling pipe. In this embodiment, four groups of liquid cooling pipes are first installed on the base plate 20, and then the first guide plate 60 and the second guide plate 61 are assembled in sequence, and finally the assembly cover plate 10 is buckled on the base plate 20 for welding to form an oil cooler.

[0045] The oil cooler of this embodiment is provided with a layer of liquid cooling pipe inside the shell, the inner space of the liquid cooling pipe constitutes a water flow channel, and the outer space of the liquid cooling pipe constitutes an oil flow channel, so that the water flow channel and the oil flow channel are a single-layer structure. The oil cooler of the present invention eliminates the stacked oil cooling layer and water cooling layer, which can reduce the stacking height of the oil cooler, reduce the installation space occupied by the oil cooler, and optimize the structure of the oil cooler. The flow directions of the water medium and the oil medium in the oil cooler are staggered, which can ensure the heat dissipation effect of the oil cooler. The oil cooler has a simple structure, which can reduce the workload of structural design and mold development, and help reduce production costs.

[0046] When the oil cooler of this embodiment is applied to a car, the oil cooler can be integrated into the cover of a controller, such as a controller for controlling an electric drive assembly, the controller specifically comprising a housing, a cover and a power device, and the oil cooler of this embodiment can be integrated into the cover to simplify the structure.

[0047] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0048] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An oil cooler, characterized in that: include: A shell, comprising a bottom plate (20) and a cover plate (10) which enclose a closed cavity, wherein the shell is provided with a water inlet (40), a water outlet (41), an oil inlet (42) and an oil outlet (43); and A liquid cooling pipeline, comprising a heat dissipation pipe (30), a first header (31) and a second header (32) arranged inside the shell; the longitudinal direction of the heat dissipation pipe (30) extends along the X direction, and the heat dissipation pipes (30) are arranged in parallel along the Y direction; the liquid inlet end of the heat dissipation pipe (30) is connected to the first header (31), and the liquid outlet end of the heat dissipation pipe (30) is connected to the second header (32); A water flow channel is formed inside the liquid cooling pipe, and an oil flow channel is formed outside the liquid cooling pipe. A gap is left between the heat dissipation pipe (30) and at least the cover plate (10) or the bottom plate (20) to allow oil medium to flow through. The first header (31) is connected to the water inlet (40), and the second header (32) is connected to the water outlet (41). The oil inlet (42) and the oil outlet (43) are correspondingly distributed on both sides of the liquid cooling pipe along the Y direction.

2. The oil cooler according to claim 1, characterized in that: The cover plate (10) is provided with a first guide groove (11) protruding upwards along the X direction corresponding to the heat dissipation tube (30); the bottom plate (20) is provided with a second guide groove (21) recessed downwards along the X direction corresponding to the heat dissipation tube (30); the first guide groove (11) and the second guide groove (21) are alternately provided along the Y direction to guide the oil medium to pass over the heat dissipation tube (30) along the Y direction.

3. The oil cooler according to claim 1, characterized in that: The oil inlet (42) and the oil outlet (43) are arranged correspondingly close to the first header (31) and the second header (32), so that the oil inlet (42) and the oil outlet (43) are diagonally distributed.

4. The oil cooler according to any one of claims 1 to 3, characterized in that: The cross sections of the first guide groove (11) and the second guide groove (21) are semicircular arc-shaped.

5. The oil cooler according to any one of claims 1 to 3, characterized in that: The cross section of the heat dissipation pipe (30) is flat in the vertical direction, and the top and bottom of the heat dissipation pipe (30) are conical.

6. The oil cooler according to any one of claims 1 to 3, characterized in that: Strip-shaped heat sinks (50) are also provided between the heat dissipation tubes (30). The heat sinks (50) are in a bent trapezoidal tooth shape in the longitudinal direction. The heat sinks (50) comprise abutment sections for contacting adjacent heat dissipation tubes (30) and a bent section for connecting the abutment sections.

7. The oil cooler according to any one of claims 1 to 3, characterized in that: The invention comprises at least two groups of liquid cooling pipes arranged in an array along the X direction and / or the Y direction; in the X direction, a partition (70) is arranged between adjacent liquid cooling pipes; in the Y direction, a guide plate is arranged between adjacent liquid cooling pipes, the liquid inlet end of the guide plate is used to connect to the water inlet (40) and / or the adjacent second header (32), and the liquid outlet end of the guide plate is used to connect to the water outlet (41) and / or the adjacent first header (31); and the oil inlet (42) and the oil outlet (43) are arranged on both sides of the liquid cooling pipe in the Y direction.

8. The oil cooler according to claim 7, characterized in that: The invention comprises two groups of liquid cooling pipes arranged in an X direction and two groups of liquid cooling pipes arranged in a Y direction, wherein a first guide plate (60) is arranged between a first group of liquid cooling pipes (33) and a second group of liquid cooling pipes (34), and a second guide plate (61) is arranged between a third group of liquid cooling pipes (35) and a fourth group of liquid cooling pipes (36); and a partition plate (70) is arranged between the first group of liquid cooling pipes (33) and the third group of liquid cooling pipes (35) and between the second group of liquid cooling pipes (34) and the fourth group of liquid cooling pipes (36).

9. The oil cooler according to claim 8, characterized in that: The water inlet (40) is close to the liquid inlet end of the first guide plate (60), and the water outlet (41) is close to the liquid outlet end of the second guide plate (61); A first group of oil inlets (42) is provided on a side of the second group of liquid cooling pipes (34) away from the first group of liquid cooling pipes (33), and a first group of oil outlets (43) is provided on a side of the first group of liquid cooling pipes (33) away from the second group of liquid cooling pipes (34); wherein the first group of oil inlets (42) is close to the second header (32) of the second group of liquid cooling pipes (34), and the first group of oil outlets (43) is close to the first header (31) of the first group of liquid cooling pipes (33); A second group of oil inlets (42) is arranged on a side of the fourth group of liquid cooling pipes (36) away from the third group of liquid cooling pipes (35), and a second group of oil outlets (43) is arranged on a side of the third group of liquid cooling pipes (35) away from the fourth group of liquid cooling pipes (36), wherein the second group of oil inlets (42) is close to the first collecting pipe (31) of the fourth group of liquid cooling pipes (36), and the second group of oil outlets (43) is close to the second collecting pipe (32) of the third group of liquid cooling pipes (35).

10. An automobile, characterized in that: The automobile comprises an electric drive assembly and a controller, wherein the controller comprises a housing, a cover and a power device, and the cover is integrated with the oil cooler according to any one of claims 1 to 9.

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