Oil cooler and oil cooling system

Abstract

The utility model discloses an oil cooler and an oil cooling system, and relates to the technical field of oil cooling, a water cooling cavity, a first water inlet and a first water outlet are formed in the oil cooler, and the water cooling cavity is communicated with the first water inlet and the first water outlet; the oil cooler further comprises a first layer plate, the first layer plate and the outer wall of the water cooling cavity are arranged in a spaced mode, a gap is formed between the first layer plate and the outer wall of the water cooling cavity, and the gap communicates with the outside to form an oil cooling channel. The oil cooling channel is communicated with the outside, the oil cooler can be directly installed in an oil pan or other parts, oil flows into or out of the oil cooler through the gap and does not need to flow through an oil inlet pipe and an oil outlet pipe, the flowing resistance is small, the influence of the oil inlet pipe and the oil outlet pipe on the flowing efficiency of the oil is reduced, and the cooling efficiency of the oil cooler is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil cooling technical field, especially relate to an oil cooler and oil cooling system. BACKGROUND

[0002] At present, the power system of the automobile needs higher and higher power. But the high power power system inevitably promotes temperature rise when working, and the temperature that is too high will affect the service life of the power system. Therefore, the oil cooler in the oil cooling system is often used to cool the transmission, engine and other components in the power system.

[0003] The existing oil cooler is a closed shell structure, and an oil cooling channel is arranged in the shell. A pipeline type oil inlet pipe and an oil outlet pipe are usually arranged on the shell, so as to be connected to the transmission, engine and other components in the power system through the pipeline type oil inlet pipe and the oil outlet pipe, and then the oil flows into the oil cooling channel in the shell through the oil inlet pipe and the oil outlet pipe. However, the flow resistance of the oil in the oil inlet pipe and the oil outlet pipe increases, which limits the flow efficiency of the oil, resulting in the reduction of the cooling efficiency of the oil cooler. SUMMARY

[0004] The main purpose of the utility model is to provide an oil cooler and oil cooling system, which aims to solve the problem of low cooling efficiency of the existing oil cooler.

[0005] To achieve the above purpose, the oil cooler provided by the utility model is formed with a water cooling cavity, a first water inlet and a first water outlet, and the water cooling cavity is communicated with the first water inlet and the first water outlet. The oil cooler further comprises a first layer plate, which is arranged separately from the outer wall of the water cooling cavity. There is a gap between the first layer plate and the outer wall of the water cooling cavity, and the gap is communicated with the outside to form an oil cooling channel. The oil cooling channel is arranged adjacent to the water cooling cavity.

[0006] In some embodiments, the oil cooler further comprises a second layer plate and a third layer plate, and the second layer plate and the third layer plate are arranged in layers. The edge of the second layer plate is sealingly connected with the edge of the third layer plate to form the water cooling cavity.

[0007] In some embodiments, the first layer plate and the second layer plate are arranged separately, and there is a gap between the first layer plate and the second layer plate. An oil inlet channel and an oil outlet channel are formed between the edge of the second layer plate and the first layer plate. The gap is communicated with the oil inlet channel and the oil outlet channel to form the oil cooling channel.

[0008] In some embodiments, the edges of the first layer plate, the second layer plate and the third layer plate are bent, and the edge of the first layer plate is provided with an oil inlet gap communicated with the gap.

[0009] In some embodiments, the second layer plate is provided with a fin structure, which is located in the oil cooling channel and / or the water cooling cavity.

[0010] In some embodiments, the side of the second layer plate facing the oil cooling channel is provided with a fin structure; the side of the second layer plate facing the fin structure is provided with an oil inlet groove, and / or the side of the first layer plate facing the fin structure is provided with an oil inlet groove.

[0011] In some embodiments, the second layer plate and the third layer plate are provided with a plurality of protruding structures in the water cooling cavity.

[0012] In some embodiments, the number of water cooling cavities is at least two, the at least two water cooling cavities are stacked, and the gap between adjacent water cooling cavities forms an oil cooling channel; each water cooling cavity is formed by enclosing one second layer plate and one third layer plate; and the second layer plate and the third layer plate form a water passing channel for connecting at least two water cooling cavities.

[0013] In some embodiments, the second layer plate and the third layer plate are also provided with an oil passing channel for connecting at least two oil cooling channels, and the oil passing channel avoids the first water outlet and the first water inlet.

[0014] The utility model also proposes an oil cooling system, oil cooling system includes oil sump and oil cooler, the oil cooler is located in the oil sump, the oil sump is equipped with second water inlet, second water outlet and inner chamber, the first water inlet communicates with the second water inlet, the first water outlet communicates with the second water outlet, the oil cooler is located in the inner chamber, and the oil cooling channel communicates with the inner chamber.

[0015] The technical scheme of the utility model adopts the interval arrangement between the first layer plate and the outer wall of the water cooling cavity, the gap between the first layer plate and the outer wall of the water cooling cavity, the gap communicates with the outside to form the oil cooling channel, and the oil cooling channel is arranged adjacent to the water cooling cavity. By such arrangement, the oil cooling channel of the oil cooler communicates with the outside, the oil cooler can be directly installed in the oil sump or other components, the oil flows into or out of the oil cooler through the gap, does not need to flow through the oil inlet pipe and the oil outlet pipe, the flow resistance is small, and the influence of the oil inlet pipe and the oil outlet pipe on the flow efficiency of the oil is reduced, so that the cooling efficiency of the oil cooler is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description, obviously, the drawings described in the following are only some of the embodiments of the present application, and for the ordinary skilled in the art, other drawings can be obtained according to the structures shown in these drawings without creative labor.

[0017] Figure 1 The structural schematic diagram of an embodiment of the oil cooler provided by the present application is shown in the figure.

[0018] Figure 2 The sectional view of an embodiment of the oil cooler provided by the present application with the bottom upward is shown in the figure.

[0019] Figure 3 The sectional view of an embodiment of the oil cooler provided by the present application with the bottom upward is shown in the figure. Figure 2 The local enlarged view of A in the figure.

[0020] Figure 4 The partial structural sectional view of an embodiment of the oil cooler provided by the present application with the bottom upward is shown in the figure.

[0021] Figure 5 The three-dimensional structural schematic diagram of another embodiment of the oil cooler provided by the present application with the bottom upward is shown in the figure.

[0022] Explanation of reference numerals:

[0023] 100, oil cooler; 10, first layer plate; 11, gap; 12, oil cooling channel; 13, oil inlet channel; 14, oil outlet channel; 15, oil inlet notch; 20, second layer plate; 21, water cooling cavity; 22, first water inlet; 23, first water outlet; 24, convex structure; 25, oil inlet groove; 26, water passing channel; 27, oil passing channel; 30, third layer plate; 40, fin structure.

[0024] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the drawings. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application, obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by the ordinary skilled in the art without creative labor are within the protection scope of the present application.

[0026] It should be noted that if the embodiments of the utility model have directionality indication (such as up, down, left, right, front, back, etc.), the directionality indication is only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture, and if the specific posture changes, the directionality indication also changes accordingly.

[0027] In addition, if the embodiments of the utility model have descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features with "first" and "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously satisfy the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary technical personnel in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the utility model.

[0028] The existing oil cooler is a closed shell structure, and an oil cooling channel is arranged in the shell. The shell is usually provided with a pipeline type oil inlet pipe and an oil outlet pipe. The existing oil cooler is connected to the transmission, engine and other components in the power system through the oil inlet pipe and the oil outlet pipe, and the oil enters the oil cooling channel 1 in the shell from the oil inlet pipe and the oil outlet pipe. However, the oil flows in the oil inlet pipe and the oil outlet pipe, the flow resistance increases, the flow efficiency of the oil is limited, and the cooling efficiency of the oil cooler is reduced.

[0029] The utility model provides a kind of oil cooler 100. Please refer to Figure 1 And Figure 2 In an embodiment of the utility model, the oil cooler 100 formed with water cooling cavity 21, first water inlet 22 and first water outlet 23, water cooling cavity 21 and first water inlet 22 and first water outlet 23 are communicated;The oil cooler 100 further includes first layer plate 10, first layer plate 10 is separated from the outer wall of water cooling cavity 21, and there is gap 11 between first layer plate 10 and the outer wall of water cooling cavity 21, gap 11 is communicated with the outside to form oil cooling channel 12;Oil cooling channel 12 is adjacent to water cooling cavity 21.

[0030] Among them, the oil cooler 100 is immersed oil cooler 100. The oil cooler 100 can be installed into oil sump to cool and cool the oil in the oil sump;The oil cooler 100 can also be installed into other components of the power system to cool and cool other components of the power system.

[0031] Specifically, the oil cooler 100 is installed in the oil sump, the first water inlet 22 and the first water outlet 23 of the oil cooler 100 are communicated with the second water inlet and the second water outlet of the oil sump, so that the cooling medium enters the water cooling cavity 21. And the oil cooler 100 is installed in the oil sump, the oil cooler 100 is immersed in the oil liquid in the oil sump, and the oil liquid in the oil sump can flow freely to the oil cooling channel 12 of the oil cooler 100, so that the cooling medium in the water cooling cavity 21 exchanges heat with the oil liquid flowing in the oil cooling channel 12. Because the oil liquid in the oil sump can freely enter and exit the oil cooling channel 12 of the oil cooler 100 without passing through the pipeline, the influence of the oil inlet pipe and the oil outlet pipe on the flow efficiency of the oil liquid is reduced, the flow resistance of the oil liquid entering and exiting the oil cooling channel 12 is small, and the cooling efficiency of the oil cooler 100 is improved.

[0032] In an embodiment, the first layer plate 10 is provided in a plate structure and is arranged in a spaced manner with the outer wall of the water cooling cavity 21, and a gap 11 is formed between the first layer plate 10 and the outer wall of the water cooling cavity 21. The oil liquid can freely enter and exit the gap 11 between the first layer plate 10 and the outer wall of the water cooling cavity 21, and the flow resistance is small. The structure of the first layer plate 10 and the outer wall of the water cooling cavity 21 can be fixed by welding, or the structure of the first layer plate 10 and the outer wall of the water cooling cavity 21 can be fixed by bonding, so that the first layer plate 10 can be fixed on the outer wall of the water cooling cavity 21.

[0033] In another embodiment, the oil cooler is installed in the oil sump, the first layer plate 10 is part of the shell of the oil sump, and the oil cooling channel is formed between the outer wall of the water cooling cavity 21 and the inner side of the shell of the oil sump.

[0034] In order to ensure that the cooling cavity in the water cooling cavity 21 can exchange heat with the oil liquid in the oil cooling channel 12, the oil cooling channel 12 is arranged in a spaced and adjacent manner with the water cooling cavity 21. The oil cooling channel 12 can be arranged on one side of the water cooling cavity 21.

[0035] The technical scheme of the utility model discloses a first layer plate 10 and the outer wall of the water cooling cavity 21 are arranged in a spaced manner, and a gap 11 is formed between the first layer plate 10 and the outer wall of the water cooling cavity 21. The gap 11 is communicated with the outside to form an oil cooling channel 12, and the oil cooling channel 12 is arranged adjacent to the water cooling cavity 21. In this way, the oil cooling channel 12 of the oil cooler 100 is communicated with the outside, the oil cooler 100 can be directly installed in the oil sump or other components, the oil liquid flows into or out of the oil cooler 100 through the gap 11, does not need to flow through the oil inlet pipe and the oil outlet pipe, and the flow resistance is small. Therefore, the influence of the oil inlet pipe and the oil outlet pipe on the flow efficiency of the oil liquid is reduced, and the cooling efficiency of the oil cooler 100 is improved.

[0036] In an embodiment, please refer to Figure 2 The oil cooler 100 further comprises a second plate 20 and a third plate 30, the first plate 10, the second plate 20 and the third plate 30 are stacked, and the edge of the second plate 20 is sealingly connected with the edge of the third plate 30 to form a water cooling cavity 21.

[0037] Further, the first plate 10 is arranged separately from the second plate 20, and a gap 11 is formed between the first plate 10 and the second plate 20, an oil inlet channel 13 and an oil outlet channel 14 are formed between the edge of the second plate 20 and the first plate 10, and the gap 11 is communicated with the oil inlet channel 13 and the oil outlet channel 14 to form an oil cooling channel 12.

[0038] Specifically, part of the structure of the first plate 10 can be welded or bonded with part of the structure of the second plate 20, so that the first plate 10 can be fixed to the second plate 20. The remaining structure of the first plate 10 has a gap 11 with the second plate 20, the gap 11 is communicated with the outside and forms an oil cooling channel 12, so that the oil cooling channel 12 of the oil cooler 100 is open, and the oil outside the oil cooler 100 can flow into the oil cooling channel 12 without passing through the oil inlet pipe; the side of the second plate 20 away from the first plate 10 is connected with the third plate 30 to form a water cooling cavity 21. In this way, the water cooling cavity 21 and the oil cooling channel 12 can be separated by the second plate 20, and the cooling medium in the water cooling cavity 21 can exchange heat with the oil in the oil cooling channel 12 through the second plate 20.

[0039] The third plate 30 can be provided with a first water inlet 22 and a first water outlet 23, so that the cooling medium can enter the water cooling cavity 21 through the first water inlet 22, or the cooling medium in the water cooling cavity 21 can flow out of the first water outlet 23. Please refer to Figure 1 The first water inlet 22 and the first water outlet 23 can be arranged on the diagonal of the third plate, so as to prolong the flow time of the cooling medium in the water cooling cavity 21, thereby improving the cooling effect of the oil cooler 100.

[0040] Optionally, the number of water cooling cavities 21 and the number of oil cooling channels 12 arranged in the oil cooler 100 can be one or at least two.

[0041] When the number of water cooling cavities 21 is at least two, the at least two water cooling cavities 21 are stacked, and the gap between adjacent two water cooling cavities 21 forms an oil cooling channel 12; each water cooling cavity 21 is formed by surrounding one second plate 20 and one third plate 30; and the second plate 20 and the third plate 30 form a water passing channel 26 for communicating at least two water cooling cavities.

[0042] In an embodiment, the second layer plate 20 and the third layer plate 30 are further formed with an oil passing channel 27, the oil passing channel 27 is used to connect at least two oil cooling channels 12, and the oil passing channel 27 is arranged to avoid the first water outlet and the first water inlet.

[0043] In an embodiment, referring to Figure 2 and Figure 4 , the at least two oil cooling channels 12 include a first oil cooling channel 12 and a second oil cooling channel 12, and the at least two water cooling cavities 21 include a first water cooling cavity 21 and a second water cooling cavity 21. The first layer plate 10 of the first oil cooling channel 12 and the second layer plate 20 of the first water cooling cavity 21 are provided with a gap 11 for the oil to flow through, and the oil flowing through the first oil cooling channel 12 exchanges heat with the cooling medium of the first water cooling cavity 21. The first layer plate 10 of the second oil cooling channel 12 and the second layer plate 20 of the second water cooling cavity 21 are also provided with a gap 11 for the oil to flow through, and the oil flowing through the second oil cooling channel 12 exchanges heat with the cooling medium of the second water cooling cavity 21. In this way, the first layer plate 10 of the second oil cooling channel 12 can be formed on the first water cooling cavity 21, i.e., the first layer plate 10 of the second oil cooling channel is the third layer plate 30 of the first water cooling cavity 21. In this way, the internal space of the oil cooler 100 can be saved, and the oil flowing through the second oil cooling channel 12 can exchange heat with the cooling medium of the first water cooling cavity 21, thereby improving the cooling efficiency of the oil cooler 100.

[0044] In this way, the number of water cooling cavities 21 can be greater than the number of oil cooling channels 12. Specifically, referring to Figure 5 in another embodiment, the number of water cooling cavities 21 is set to two, and the number of oil cooling channels 12 is set to one. The oil cooling channel 12 is located between the two water cooling cavities 21, and the cooling medium of the two water cooling cavities 21 can exchange heat with the oil flowing through the oil cooling channel 12, thereby improving the cooling efficiency of the oil cooler 100.

[0045] In order to prevent the oil from entering the water cooling cavity 21 and contaminating the cooling medium, in an embodiment, referring to Figure 2 the edge of the second layer plate 20 is sealingly connected to the edge of the third layer plate 30, so that the second layer plate 20 and the third layer plate 30 can form a closed water cooling cavity 21. The water cooling cavity 21 is spaced apart from the oil cooling channel 12, and the oil flowing through the oil cooling channel 12 cannot flow into the water cooling cavity 21, thereby preventing the cooling medium of the water cooling cavity 21 from being mixed with and contaminated by the oil flowing through the oil cooling channel 12.

[0046] The edge of the second layer plate 20 and the edge of the third layer plate 30 can be sealed and connected by welding or bonding. After the edge of the second layer plate 20 is sealed and connected with the edge of the third layer plate 30, the second layer plate 20 and the third layer plate 30 can enclose a closed water cooling cavity 21.

[0047] In an embodiment, the first water inlet 22 and the first water outlet 23 are arranged on the third layer plate 30 or the second layer plate 20, and the first water inlet 22 and the first water outlet 23 of the oil cooler 100 are directly and sealingly connected with the second water inlet and the second water outlet of the oil pan. The closed water cooling cavity 21 realizes the flow of the cooling medium through the first water inlet 22 and the first water outlet 23 on the third layer plate 30 or the second layer plate 20. Moreover, the first water inlet 22 and the first water outlet 23 of the oil cooler 100 are directly and sealingly connected with the second water inlet and the second water outlet of the oil pan, so that the oil in the oil pan cannot enter the water cooling cavity 21 from the first water inlet 22 and the first water outlet 23, thereby ensuring that the cooling medium in the water cooling cavity 21 is not mixed and contaminated with the oil in the oil cooling channel 12.

[0048] Further, the edge of the first layer plate 10 and the edge of the second layer plate 20 have an oil inlet channel 13 and an oil outlet channel 14, so that the oil can directly flow into the oil cooling channel 12 of the oil cooler 100 from the oil inlet channel 13 or directly flow out of the oil cooling channel 12 from the oil outlet channel 14 without needing to pass through a pipeline, thereby reducing flow resistance.

[0049] In an embodiment, the edge of the first layer plate 10, the edge of the second layer plate 20 and the edge of the third layer plate 30 are bent, and the edge of the first layer plate 10 is provided with an oil inlet gap 15 that is in communication with the gap 11, so that more oil in the oil pan can enter the oil cooling channel 12 from the oil inlet gap 15. The oil inlet gap 15 can be a square gap or a semi-elliptical gap, etc. The shape of the oil inlet gap 15 is not limited in the utility model.

[0050] The cooling medium in the water cooling cavity 21 and the oil in the oil cooling channel 12 are separated by the second layer plate 20 and heat-exchanged by heat conduction, and the heat conduction and heat exchange area of the second layer plate 20 is limited. Therefore, the second layer plate 20 is provided with a fin structure 40, and the fin structure 40 is located in the oil cooling channel 12 and / or the water cooling cavity 21. Since the fin structure 40 is mostly made of metal material and has good heat conduction performance, and the fin structure 40 is often provided with multiple parallel heat exchange fins, the cooling medium or the oil can flow in the heat exchange space between the multiple heat exchange fins, so as to conduct heat to the second layer plate 20 through the multiple heat exchange fins, thereby facilitating heat exchange and increasing the heat conduction area and the heat exchange area.

[0051] In an embodiment, please refer to Figure 2 , Figure 3 and Figure 4The fin structure 40 is arranged on the side of the second layer plate 20 facing the oil cooling channel 12. The oil in the oil cooling channel 12 flows in the heat exchange space between the multiple heat exchange fins of the fin structure 40, and the heat of the oil can be conducted to the second layer plate 20 through the fin structure 40, and then exchanged with the cooling medium in the water cooling cavity 21.

[0052] Alternatively, the fin structure 40 can also be arranged on the side of the second layer plate 20 facing the water cooling cavity 21. The heat of the oil in the oil cooling channel 12 can be conducted to the water cooling cavity 21 through the second layer plate 20 and the fin structure 40, and the cooling medium flows in the heat exchange space between the multiple heat exchange fins to take away the heat conducted to the heat exchange fins from the oil cooling channel 12, and then dissipate heat for the oil in the oil cooling channel 12.

[0053] In some embodiments, the fin structure 40 is arranged on the side of the second layer plate 20 facing the oil cooling channel 12; the side of the second layer plate 20 facing the fin structure 40 is provided with an oil inlet groove 25, and / or the side of the first layer plate 10 facing the fin structure 40 is provided with an oil inlet groove 25.

[0054] In an embodiment, referring to Figure 2 The fin structure 40 is arranged on the side of the second layer plate 20 facing the oil cooling channel 12, and the side of the second layer plate 20 facing the fin structure 40 is provided with an oil inlet groove 25, so that the oil in the oil sump can flow from the oil inlet channel 13 into the oil inlet groove 25, and then into the heat exchange space of the fin structure 40 and exchange heat with the fin structure 40. The oil inlet groove 25 can also be arranged on the side of the first layer plate 10 facing the fin structure 40 to further facilitate the flow of oil on the first layer plate 10 and into the heat exchange space of the fin structure 40. Referring to Figure 4 The fin structure 40 is arranged on the side of the second layer plate 20 facing the oil cooling channel 12, and the edge of the first layer plate 10 is provided with an oil inlet gap 15, so that the oil directly flows from the oil inlet gap 15 into the oil cooling channel 12, and then exchanges heat with the fin structure 40.

[0055] In an embodiment, in order to increase the heat exchange area, the second layer plate 20 and the third layer plate 30 are provided with multiple protruding structures 24 in the water cooling cavity 21. The heat of the oil flowing in the oil cooling channel 12 is conducted to the protruding structures 24 through the second layer plate 20 and the third layer plate 30, and the cooling medium flows in the water cooling cavity 21 and can contact the protruding structures 24 to take away the heat.

[0056] Optionally, the number of the water cooling cavities 21 and the oil cooling channels 12 is at least two; the second layer plate 20 and the third layer plate 30 are formed with a water passing channel 26, the water passing channel 26 is used for connecting at least two water cooling cavities 21; the second layer plate 20 and the third layer plate 30 are also formed with an oil passing channel 27, the oil passing channel 27 is used for connecting at least two oil cooling channels 12, and the oil passing channel 27 is arranged to avoid the first water outlet 23 and the first water inlet 22.

[0057] In an embodiment, referring to Figure 2 , the number of the water cooling cavities 21 and the oil cooling channels 12 is at least two, and the two sides of the water cooling cavities 21 are provided with the oil cooling channels 12, and the two sides of the oil cooling channels 12 are also arranged to be spaced apart from the water cooling cavities 21. Among them, the second layer plate 20 and the third layer plate 30 of the water cooling cavity 21 are provided with a water passing channel 26, the water passing channel 26 directly connects the upper and lower two water cooling cavities 21 and is communicated with the first water inlet 22 or the first water outlet 23, so that the cooling medium directly enters the water cooling cavity 21 from the first water inlet 22, or the cooling medium in the water cooling cavity 21 can directly flow out from the first water outlet 23, and at the same time, the upper and lower two water cooling cavities 21 are connected with each other, and the cooling medium can flow in the upper and lower two water cooling cavities 21. In order to avoid the oil entering the water cooling cavity 21, the water passing channel 26 is sealingly arranged at the oil cooling channel 12. The water passing channel 26 can be arranged as a ring-shaped pipe structure, a square pipe structure, etc. Similarly, the second layer plate 20 and the third layer plate 30 are also formed with an oil passing channel 27, the oil passing channel 27 is arranged to avoid the first water outlet 23 and the first water inlet 22; the oil passing channel 27 connects the upper and lower two oil cooling channels 12, and the oil can flow in the upper and lower two oil cooling channels 12. And the oil passing channel 27 is sealingly arranged in the water cooling cavity 21 to avoid the cooling medium entering the oil cooling channel 12. Optionally, the oil passing channel 27 can be arranged as a ring-shaped pipe structure, a square pipe structure, etc.

[0058] The utility model discloses still propose a kind of oil cooling system, which includes oil sump and oil cooler 100, the specific structure of the oil cooler 100 refers to above-mentioned embodiment, since the oil cooling system adopts all technical solutions of above-mentioned all embodiments, at least have all beneficial effects brought by the technical scheme of above-mentioned embodiment, here no longer repeat. Among them, oil cooler 100 is located in oil sump;Oil sump is provided with second water inlet, second water outlet and inner cavity, first water inlet 22 is communicated with second water inlet, and first water outlet 23 is communicated with second water outlet;Oil cooler 100 is located in inner cavity, and oil cooling channel 12 is communicated with inner cavity.

[0059] Specifically, the inner cavity of the oil sump stores oil liquid, and the oil cooler 100 is installed in the inner cavity of the oil sump, so that the oil cooler 100 is immersed in the oil liquid of the oil sump, and the oil liquid in the oil sump can flow freely to the oil cooling channel 12 of the oil cooler 100. Since the oil liquid in the oil sump does not need to pass through a pipeline to flow to and from the oil cooling channel 12 of the oil cooler 100, the influence of the oil inlet pipe and the oil outlet pipe on the flow efficiency of the oil liquid is reduced, the flow resistance of the oil liquid to and from the oil cooling channel 12 is small, and thus the cooling efficiency of the oil cooler 100 is improved.

[0060] The first water inlet 22 and the first water outlet 23 of the oil cooler 100 are respectively in sealing connection with the second water inlet and the second water outlet of the oil sump, the cooling medium enters the water cooling cavity 21, and the cooling medium is prevented from entering the inner cavity of the oil sump and polluting the oil liquid in the oil sump; and the cooling medium exchanges heat with the oil liquid flowing in the oil cooling channel 12 in the water cooling cavity 21.

[0061] In addition, the existing oil cooler 100 is installed outside the oil sump, occupies a large space of the power assembly shell, and needs to use a pipeline to connect the oil cooler 100 and the oil sump, so that the pipeline arrangement difficulty and the pipeline arrangement cost are high.

[0062] The oil cooler 100 is installed in the oil sump, so that the space of the oil sump is reasonably utilized, the space of the power assembly shell is reduced, and the pipeline connection between the oil sump and the oil cooler 100 is not needed, so that the pipeline arrangement difficulty and the pipeline arrangement cost are reduced.

[0063] The above only describes exemplary embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation, direct / indirect application in other related technical fields under the technical concept of the utility model, and the contents of the utility model specification and drawings are included in the patent protection range of the utility model.

Claims

1. An oil cooler characterized by comprising: The oil cooler is formed with a water cooling cavity, a first water inlet and a first water outlet, and the water cooling cavity is communicated with the first water inlet and the first water outlet. The oil cooler further comprises a first layer plate, which is arranged in a spaced manner with the outer wall of the water cooling cavity, and a gap is formed between the first layer plate and the outer wall of the water cooling cavity, and the gap is communicated with the outside to form an oil cooling channel; and the oil cooling channel is arranged adjacent to the water cooling cavity.

2. The oil cooler of claim 1, wherein The oil cooler further comprises a second layer plate and a third layer plate, which are arranged in a stacked manner, and the edge of the second layer plate is sealingly connected with the edge of the third layer plate to form the water cooling cavity.

3. The oil cooler of claim 2, wherein The first layer plate and the second layer plate are arranged in a spaced manner, and a gap is formed between the first layer plate and the second layer plate, and an oil inlet channel and an oil outlet channel are formed between the edge of the second layer plate and the first layer plate, and the gap is communicated with the oil inlet channel and the oil outlet channel to form the oil cooling channel.

4. The oil cooler of claim 3, wherein The edges of the first layer plate, the second layer plate and the third layer plate are arranged in a bent manner, and the edge of the first layer plate is provided with an oil inlet notch communicated with the gap.

5. The oil cooler according to any one of claims 2 to 4, characterized in that The second layer plate is provided with a fin structure, and the fin structure is located in the oil cooling channel and / or the water cooling cavity.

6. The oil cooler according to any one of claims 2 to 4, wherein A fin structure is mounted on one side of the second layer plate facing the oil cooling channel. An oil inlet groove is arranged on one side of the second layer plate facing the fin structure, and / or an oil inlet groove is arranged on one side of the first layer plate facing the fin structure.

7. The oil cooler according to any one of claims 2 to 4, wherein The second layer plate and the third layer plate are provided with a plurality of protruding structures in the water cooling cavity.

8. The oil cooler according to any one of claims 2 to 4, wherein The number of the water cooling cavities is at least two, and the at least two water cooling cavities are arranged in a stacked manner, and a gap is formed between adjacent two water cooling cavities to form an oil cooling channel; each water cooling cavity is formed by enclosing one second layer plate and one third layer plate; and the second layer plate and the third layer plate form a water passing channel for communicating the at least two water cooling cavities.

9. The oil cooler of claim 8, wherein, The second layer plate and the third layer plate further form an oil passing channel for communicating the at least two oil cooling channels, and the oil passing channel avoids the first water outlet and the first water inlet.

10. An oil cooling system characterized by, An oil pan and an oil cooler according to any one of claims 1 to 9 are included, and the oil cooler is arranged in the oil pan. The oil pan is provided with a second water inlet, a second water outlet and an inner cavity, the first water inlet is communicated with the second water inlet, and the first water outlet is communicated with the second water outlet; and the oil cooler is arranged in the inner cavity, and the oil cooling channel is communicated with the inner cavity.

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