Oil cooler, transmission, power assembly and vehicle

Abstract

The utility model belongs to the technical field of oil coolers, and discloses an oil cooler which is suitable for being detachably fixed on the outer side of a transmission and comprises a body and a control valve, the control valve is provided with an oil inlet valve port, a bypass valve port and a straight-through valve port, and the oil inlet valve port is selectively communicated with the bypass valve port or the straight-through valve port. The body is provided with a cooling medium flow channel, an oil liquid cooling flow channel, an oil inlet and an oil outlet, the first end of the oil liquid cooling flow channel is communicated with the straight-through valve port, the oil inlet is communicated with the oil inlet valve port, the oil outlet is communicated with the bypass valve port and the second end of the oil liquid cooling flow channel, and the cooling medium flow channel and the oil liquid cooling flow channel exchange heat with each other. The utility model further relates to a transmission, a power assembly and a vehicle. According to the utility model, the control valve can be conveniently mounted and replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of oil coolers, in particular to an oil cooler, a transmission, a powertrain and a vehicle. Background Art

[0002] In today's automotive industry, strict requirements are put forward for energy conservation and consumption reduction, requiring vehicles to operate within a more economical range. The temperature of the lubricating oil in the vehicle transmission directly affects the transmission efficiency of the transmission and the energy consumption of the vehicle. The oil temperature of the vehicle transmission needs to be continuously maintained within the normal working range. Therefore, a lubricating oil temperature regulating device is provided in the lubricating oil circulation system of some vehicles, which usually includes an oil cooler, a control valve and related oil circuits.

[0003] In view of the extreme requirements of the whole vehicle and the transmission for integration and external dimensions, most current automobile manufacturers have abandoned the scheme of connecting the transmission, the oil cooler and the control valve through external pipelines. However, the installation and replacement of the control valve of the lubricating oil temperature regulating device in the related technology are very inconvenient. Summary of the Utility Model

[0004] The utility model aims to solve the technical problems existing in the prior art. For this purpose, an object of the utility model is to provide an oil cooler, the control valve of which is convenient to install and replace.

[0005] An oil cooler according to the utility model is adapted to be detachably fixed outside a device to be cooled. The oil cooler includes a body and a control valve. The control valve has an oil inlet valve port, a bypass valve port and a direct-through valve port. The oil inlet valve port selectively communicates with the bypass valve port or the direct-through valve port. The body is provided with a cooling medium flow channel, an oil cooling flow channel, an oil inlet and an oil outlet. The first end of the oil cooling flow channel communicates with the direct-through valve port. The oil inlet communicates with the oil inlet valve port. The oil outlet communicates with the bypass valve port and the second end of the oil cooling flow channel respectively. The cooling medium flow channel and the oil cooling flow channel exchange heat with each other.

[0006] The oil cooler provided by the utility model can adjust the temperature of the lubricating oil in the device to be cooled, and can conveniently install and replace the control valve. When the oil inlet valve port selectively communicates with the direct-through valve port, since the first end of the oil cooling flow channel communicates with the oil inlet valve port and the second end of the oil cooling flow channel communicates with the oil outlet, the oil cooling flow channel and the cooling medium flow channel exchange heat with each other. The oil enters the oil cooling flow channel from the direct-through valve port. After the oil is cooled by the cooling medium in the cooling medium flow channel, it flows back into the device to be cooled through the oil cooling flow channel and the oil outlet. The cooled oil is used to lubricate and cool the working components in the device to be cooled.

[0007] When the inlet valve port is selectively communicated with the bypass valve port, since the bypass valve port is communicated with the outlet port, the oil directly flows back from the bypass valve port through the outlet port into the device to be cooled. The heat generated by the working components in the device to be cooled is transferred to the oil, causing the temperature of the oil to gradually rise to a suitable oil temperature range for the working components to operate.

[0008] Since the oil cooler is detachably arranged outside the device to be cooled, when the control valve needs to be replaced, the oil cooler including the control valve can be directly replaced, enabling the device to be cooled to be quickly restored to its original state. Compared with replacing the control valve on the device to be cooled, the convenience is greatly improved.

[0009] The present utility model also provides a transmission, including the above-mentioned oil cooler, and the device to be cooled is configured as a transmission.

[0010] The present utility model further provides a powertrain, including the above-mentioned transmission.

[0011] The present utility model also provides a vehicle, including the above-mentioned powertrain. Description of the Drawings

[0012] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0013] Figure 1 is a schematic external view of the oil cooler provided by an embodiment of the present utility model.

[0014] Figure 2 is a top view of the oil cooler provided by an embodiment of the present utility model.

[0015] Figure 3a is the sectional view taken along line A-A of the oil cooler provided by an embodiment of the present utility model when the valve core is in the first position Figure 2 in the middle.

[0016] Figure 3b is the sectional view taken along line A-A of the oil cooler provided by an embodiment of the present utility model when the valve core is in the second position Figure 2 in the middle.

[0017] Figure 4 is an exploded view of the oil cooler provided by an embodiment of the present utility model Figure 1 .

[0018] Figure 5 is an exploded view of the oil cooler provided by an embodiment of the present utility model Figure 2 .

[0019] Figure 6 is the third exploded view of the oil cooler provided by an embodiment of the present utility model.

[0020] Reference Signs:

[0021] 100 - main body, 110 - base part, 120 - heat exchange part;

[0022] 1101 - oil inlet, 1102 - oil outlet, 1103 - bypass flow channel, 1104 - oil inlet flow channel, 1105 - straight-through flow channel, 1106 - first mounting surface, 1107 - second mounting surface, 1108 - substrate, 1109 - cover plate, 1110 - first flow channel groove, 1111 - second flow channel groove, 1112 - third flow channel groove, 1113 - first hole, 1114 - first sub-hole, 1115 - second sub-hole, 1116 - second hole, 1117 - third hole, 1118 - fourth hole, 1119 - fifth hole, 1120 - first substrate, 1121 - second substrate, 1122 - cooling medium inlet, 1123 - cooling medium outlet, 1124 - mounting hole;

[0023] 200 - control valve, 210 - valve body, 2101 - oil inlet valve port, 2102 - bypass valve port, 2103 - straight-through valve port, 2104 - valve cavity, 220 - valve core. Detailed implementation mode

[0024] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0026] In the description of the present invention, the "first feature" and "second feature" may include one or more of such features.

[0027] In the description of the present invention, the meaning of "a plurality" is two or more, and the meaning of "several" is one or more.

[0028] The present utility model provides an oil cooler, which is adapted to be detachably fixed on the outside of a device to be cooled. The oil cooler includes a body and a control valve 200. The control valve 200 has an oil inlet valve port 2101, a bypass valve port 2102, and a direct-through valve port 2103. The oil inlet valve port 2101 selectively communicates with the bypass valve port 2102 or the direct-through valve port 2103. The body is provided with a cooling medium flow channel, an oil cooling flow channel, an oil inlet, and an oil outlet. The first end of the oil cooling flow channel communicates with the direct-through valve port 2103, the oil inlet communicates with the oil inlet valve port 2101, the oil outlet communicates with the bypass valve port 2102 and the second end of the oil cooling flow channel respectively, and the cooling medium flow channel and the oil cooling flow channel exchange heat with each other.

[0029] As Figures 1 - 6 shown, the oil cooler provided by an embodiment of the present utility model includes a body 100 and a control valve 200. The body 100 is provided with a cooling medium flow channel (not shown), an oil cooling flow channel (not shown), an oil inlet 1101, and an oil outlet. The control valve 200 has an oil inlet valve port 2101, a bypass valve port 2102, and a direct-through valve port 2103. The oil cooler is fixed on the outer wall of the housing of the device to be cooled. The inside of the housing of the device to be cooled is filled with oil for lubricating and cooling the working components in the device to be cooled. An oil inlet hole and an oil outlet hole are formed in the housing of the device to be cooled. The oil outlet hole communicates with the oil inlet 1101, and the oil outlet communicates with the oil inlet hole. The oil in the device to be cooled enters the oil inlet 1101 of the oil cooler fixed on the housing of the device to be cooled from the oil outlet hole of the housing of the device to be cooled under the pressure of an oil pump, and then enters the oil inlet valve port 2101 of the control valve 200 from the oil inlet 1101. At this time:

[0030] When the oil inlet valve port 2101 communicates with the direct-through valve port 2103, the oil cooler is in a direct-through state, and the oil flowing in from the oil inlet 1101 enters the oil cooling flow channel from the direct-through valve port 2103. Since a cooling medium flow channel for exchanging heat with the oil cooling flow channel is further provided in the body 100 of the oil cooler, the oil entering the oil cooling flow channel can be cooled by the cooling medium in the cooling medium flow channel. Since the second end of the cooling medium flow channel communicates with the oil outlet, the cooled oil flowing out of the oil cooling flow channel can flow out of the oil cooler from the oil outlet and return to the inside of the device to be cooled through the oil inlet hole on the housing of the device to be cooled. Thus, when the oil inlet valve port 2101 communicates with the direct-through valve port 2103, the oil is cooled, and the cooled oil can be conveyed back into the device to be cooled to lubricate and cool the working components inside the device to be cooled;

[0031] When the oil inlet valve port 2101 is in communication with the bypass valve port 2102, the oil cooler is in a bypass state. The oil flowing in from the oil inlet 1101 flows into the bypass valve port 2102. Since the bypass valve port 2102 is in communication with the oil outlet, the oil flowing to the bypass valve port 2102 flows into the oil inlet hole on the housing of the device to be cooled through the oil outlet, and then enters the interior of the device to be cooled. The heat generated by the working components inside the device to be cooled is transferred to the oil flowing inside the device to be cooled, causing the temperature of the oil to gradually rise to a range suitable for the working components to operate. It should be noted that this setting can not only increase the temperature of the oil when needed, but also enable the oil to flow through another path when the internal oil cooling flow channel is blocked, maintaining the normal circulation of the oil system, preventing damage to the components in the system due to excessive pressure or leakage of the oil caused by damage to the sealing interface of the system, and improving the reliability of the oil system.

[0032] In this embodiment, the oil inlet valve port 2101 of the control valve 200 is selectively in communication with the direct-through valve port 2103 or the bypass valve port 2102 to control whether the oil in the device to be cooled is cooled through the oil cooling flow channel in the oil cooler or directly flows back into the interior of the device to be cooled without passing through the oil cooling flow channel, thereby realizing the regulation of the oil temperature inside the device to be cooled by the oil cooler so that the oil temperature inside the device to be cooled is maintained within a suitable range for the working components inside the device to be cooled.

[0033] In this embodiment, the oil inlet valve port 2101 is selectively in communication with the bypass valve port 2102 or the direct-through valve port 2103, which means that the control valve 200 is only in communication with one of the bypass valve port 2102 and the direct-through valve port 2103 at any given moment. It can be understood that when the oil inlet valve port 2101 is in communication with the bypass valve port 2102, the oil inlet valve port 2101 is disconnected from the direct-through valve port 2103; when the oil inlet valve port 2101 is in communication with the direct-through valve port 2103, the oil inlet valve port 2101 is disconnected from the bypass valve port 2102.

[0034] In some embodiments of the oil cooler provided by the present utility model, a cooling medium flow channel and an oil cooling flow channel are provided inside the body 100, and the cooling medium flow channel and the oil cooling flow channel exchange heat with each other. In practical applications, the cooling medium flow channel and the oil cooling flow channel are arranged adjacent to each other. The cooling medium flowing in the cooling medium flow channel, such as water or other cooling liquids, and the oil flowing in the oil cooling flow channel exchange heat with each other through the wall surface between the cooling medium flow channel and the oil cooling flow channel. The cooling medium flow channel is provided for cooling the oil. Compared with the natural cooling method in which the oil exchanges heat with the air in the environment through the outer wall of the oil cooling flow channel, the cooling efficiency and cooling effect are significantly improved.

[0035] In some embodiments of the oil cooler provided by the present utility model, both the oil flow channel and the cooling medium flow channel are arranged as flow channel layers that are stacked and laid flat in the oil cooler body 100. The oil flow channel and the cooling medium flow channel are alternately stacked, and adjacent oil flow channels and cooling medium flow channels share a flow channel wall. Thereby, the heat exchange area between adjacent oil flow channels and cooling medium flow channels can be increased, enabling the oil and the cooling medium to fully exchange heat and improving the heat exchange efficiency. With this arrangement, while improving the heat exchange efficiency, the number of oil channel plates is reduced, the manufacturing cost of the oil cooler is lowered. At the same time, the stacked arrangement of the flow channel layers makes the most of the space of the oil cooler body 100 and improves the heat exchange capacity of the oil cooler.

[0036] In one embodiment, the oil cooling flow channels in the body 100 are arranged as a plurality of oil cooling flow channel layers that are connected in series with each other in the body 100, and the plurality of oil cooling flow channel layers are sequentially connected. It can be understood that each oil cooling flow channel layer stacked in the body 100 has an oil inlet and an oil outlet. The oil outlet of the first oil cooling flow channel layer is connected to the oil inlet of the second oil cooling flow channel layer, the oil outlet of the second oil cooling flow channel layer is connected to the oil inlet of the third oil cooling flow channel layer, and so on. The oil inlet of the first oil cooling flow channel layer is configured as the first end of the oil cooling flow channel, and the direct-through valve port 2103 is connected to the oil inlet of the first oil cooling flow channel layer; the oil outlet of the last oil cooling flow channel layer is configured as the second end of the oil cooling flow channel, and the oil outlet and the bypass valve port 2102 are both connected to the oil outlet of the last oil cooling flow channel layer.

[0037] In one embodiment, the oil cooling flow channels in the body 100 can be arranged as a plurality of oil cooling flow channel layers that are connected in parallel with each other and stacked in the body 100. It can be understood that each oil cooling flow channel layer has an oil inlet and an oil outlet. The oil inlets of each oil cooling flow channel layer are connected to each other, and the oil outlets of each oil flow channel layer are connected to each other. The oil inlet of one of the cooling flow channel layers is configured as the first end of the oil cooling flow channel, and the direct-through valve port 2103 is connected to the oil inlet of this oil cooling flow channel layer; the oil outlet of one of the oil cooling layers is configured as the second end of the oil cooling flow channel, and the oil outlet and the bypass valve port 2102 are both connected to the oil outlet of this oil cooling layer.

[0038] In one embodiment, the cooling medium flow channels within the body 100 are arranged as multiple cooling medium flow channel layers that are connected in series within the body 100. The multiple stacked cooling medium flow channel layers are connected in sequence. It can be understood that each cooling medium flow channel layer has a cooling medium inlet 1122 and a cooling medium outlet 1123. The cooling medium outlet 1123 of the first cooling medium flow channel layer is connected to the cooling medium inlet 1122 of the second cooling medium flow channel layer, the cooling medium outlet 1123 of the second cooling medium flow channel layer is connected to the cooling medium inlet 1122 of the third cooling medium flow channel layer, and so on. The cooling medium inlet 1122 of the first cooling medium flow channel layer is connected to the outlet end of the cooling medium container, and the cooling medium outlet 1123 of the last cooling medium flow channel layer is connected to the inlet end of the cooling medium container. Under the pressure of the cooling pump, the cooling medium flows from the outlet end of the cooling medium container through the cooling medium inlet 1122 into the cooling medium flow channels of the oil cooler. After the cooling medium in the cooling medium flow channels exchanges heat with the oil in the oil cooling flow channels, the cooling medium passes through the cooling medium outlet 1123 of the cooling medium flow channels and flows into the cooling medium container from the inlet end of the cooling medium container to form a cooling circulation loop. The flowing cooling medium can ensure that the cooling medium continuously cools the oil at a relatively low temperature, significantly improving the cooling effect.

[0039] In one embodiment, the cooling medium flow channels within the body 100 are arranged as multiple cooling medium flow channel layers that are connected in parallel within the body 100. It can be understood that each cooling medium flow channel layer has a cooling medium inlet 1122 and a cooling medium outlet 1123. The cooling medium inlets 1122 of each cooling medium flow channel layer are connected to each other, and the cooling medium outlets 1123 of each cooling medium flow channel layer are connected to each other. The cooling medium inlet 1122 of one of the cooling medium flow channel layers is connected to the outlet end of the cooling medium container, and the cooling medium outlet 1123 of one of the cooling medium flow channel layers is connected to the inlet end of the cooling medium container. Under the pressure of the cooling pump, the cooling medium flows from the outlet end of the cooling medium container into the cooling medium flow channels. After the cooling medium in the cooling medium flow channels exchanges heat with the oil in the oil cooling flow channels, the cooling medium passes through the cooling medium outlet 1123 of the cooling medium flow channels and flows into the cooling medium container from the inlet end of the cooling medium container to form a cooling circulation loop. The flowing cooling medium can ensure that the cooling medium continuously cools the oil at a relatively low temperature, significantly improving the cooling effect.

[0040] In some embodiments of the oil cooler provided by the present utility model, the flow direction of the oil in the oil cooling flow channel is opposite to the flow direction of the cooling medium in the cooling medium flow channel. Since the temperature difference between the oil and the cooling medium is the largest at the entrance of their respective flow channels, as the oil and the cooling medium flow, although the temperature difference between the two gradually decreases, due to the opposite flow directions, overall, the two can maintain a relatively large average temperature difference over a longer distance, thereby improving the heat transfer efficiency. Since a relatively large temperature difference can be maintained between the oil and the cooling medium, the thermal resistance is low, which is more conducive to the heat transfer between the two, further improving the heat exchange efficiency. On the other hand, the arrangement of the opposite flow directions of the oil and the cooling medium makes the temperature distribution of the oil to be cooled more uniform, avoiding damage to the working components of the device to be cooled caused by the thermal stress of the oil with uneven temperature distribution, and improving the service life of the device to be cooled. Furthermore, due to the high cooling efficiency of the arrangement of the opposite flow directions of the oil and the cooling medium, under the requirement of the same cooling capacity, compared with the arrangement of the same flow directions of the oil and the cooling medium, the size and volume of the oil cooler can be set smaller, reducing the cost while conforming to the development trend of miniaturization and light weight of industrial components.

[0041] It should be noted that those skilled in the art can set the internal structure of the oil cooler according to the actual situation to form an oil cooling flow channel and a cooling medium flow channel to achieve the heat exchange between the oil and the cooling medium. The present application does not make any restrictions.

[0042] Such as Figures 1 - 2 and Figures 4 - 6 , in some embodiments of the oil cooler provided by the present utility model, the oil cooler is detachably fixed to the outside of the device to be cooled (not shown). The installation of the control valve 200 on the oil cooler can be installed independently of the installation station of the device to be cooled. It can be understood that the oil cooler including the control valve 200 is separately assembled as a small assembly, which is more convenient and has higher production efficiency than installing it at the assembly station of the device to be cooled; in some cases, when the control valve 200 needs to be replaced, the oil cooler including the control valve 200 can be directly replaced, quickly restoring the device to be cooled assembly to be repaired. Compared with replacing the control valve 200 on the device to be cooled assembly, the convenience is greatly improved.

[0043] Such as Figures 1 - 2 and Figures 4 - 6 , in some embodiments of the oil cooler provided by the present utility model, the control valve 200 is detachably fixed to the body 100 of the oil cooler. An installation seat with a through hole is provided on the valve body 210 of the control valve 200, and a threaded hole corresponding to the through hole is provided on the oil cooler body 100. The control valve 200 is fixed to the oil cooler body 100 by screws passing through the through hole. This installation method is simple to operate, and moreover, compared with the control valve 200 being arranged on the inner wall of the housing of the device to be cooled or inside the housing of the device to be cooled, it is more convenient for the installation, replacement and disassembly of the control valve 200.

[0044] As Figures 3a - 6 Figures 3a - 6 In one embodiment of the present utility model, a bypass flow channel 1103, an oil inlet flow channel 1104, and a direct flow channel 1105 are provided in the body 100 of the oil cooler. The oil outlet and the bypass valve port 2102 are connected through the bypass flow channel 1103. The oil inlet 1101 and the oil inlet valve port 2101 are connected through the oil inlet flow channel 1104. The first end of the oil cooling flow channel and the direct valve port 2103 are connected through the direct flow channel 1105.

[0045]

[0045] When the oil inlet valve port 2101 is connected to the direct valve port 2103, the oil in the device to be cooled flows from the oil inlet 1101 through the oil inlet flow channel 1104, the oil inlet valve port 2101, the direct valve port 2103, and the direct flow channel 1105 into the oil cooling flow channel. The oil is cooled by the cooling medium in the cooling medium flow channel in the oil cooling flow channel and then flows back into the device to be cooled through the oil outlet, lubricating and cooling the working components inside the device to be cooled. When the oil inlet valve port 2101 is connected to the bypass valve port 2102, the oil in the device to be cooled flows from the oil inlet 1101 through the oil inlet flow channel 1104, the oil inlet valve port 2101, the bypass valve port 2102, flows through the bypass flow channel 1103, and flows back into the device to be cooled from the oil outlet.

[0046]

[0046] In this embodiment, on the one hand, the setting of the oil inlet flow channel 1104 facilitates the connection between the oil inlet 1101 and the oil inlet valve port 2101. The setting of the direct flow channel 1105 facilitates the connection between the direct valve port 2103 and the oil cooling flow channel. The setting of the bypass flow channel 1103 facilitates the connection between the bypass valve port 2102 and the oil outlet. On the other hand, the oil inlet flow channel 1104, the direct flow channel 1105, and the bypass flow channel 1103 are all provided in the oil cooler body 100, making the internal structure of the oil cooler more integrated and compact. Compared with the case where the oil inlet flow channel 1104, the direct flow channel 1105, and the bypass flow channel 1103 are provided on the housing of the component to be cooled, the processing of the flow channels is more convenient, and the functions of the oil cooler itself are more comprehensive.

[0047] As Figures 1 - 3bAs shown, in some embodiments of the oil cooler provided by the present utility model, the oil cooler body 100 includes a base portion 110 and a heat exchange portion 120. The base portion 110 has opposite first mounting surface 1106 and second mounting surface 1107. The heat exchange portion 120 is mounted on the first mounting surface 1106, and the control valve 200 is also mounted on the first mounting surface 1106. The second mounting surface 1107 is adapted to be mounted on the outside of the device to be cooled; an oil cooling flow channel and a cooling medium flow channel are formed in the heat exchange portion 120. It can be understood that the heat exchange portion 120 and the base portion 110 are arranged side by side in the arrangement direction of the oil cooler and the device to be cooled. The arrangement direction of the control valve 200 and the heat exchange portion 120 is parallel to the outer wall of the device to be cooled. Compared with the control valve 200, the heat exchange portion 120, and the base portion 110 being arranged side by side in sequence in the arrangement direction of the oil cooler and the device to be cooled, it is beneficial to reduce the size of the oil cooler in the arrangement direction of the oil cooler and the device to be cooled, facilitating the arrangement of the oil cooler in the equipment space; compared with the control valve 200 being mounted on the heat exchange portion 120, mounting the control valve 200 on the base portion 110 is more conducive to the arrangement of the communication channels between the valve ports of the control valve 200 and the oil cooling flow channels in the heat exchange portion 120. In addition, the shell wall of the heat exchange portion 120 is usually a thin-walled part, which is not conducive to setting threaded holes for mounting the control valve 200. Therefore, the control valve 200 is more suitable for being mounted on the base portion 110.

[0048] In some embodiments of the oil cooler provided by the present utility model, as Figure 1 , Figure 2 and Figure 6 shown, the base portion 110 is provided with a mounting hole 1124 that penetrates through the base portion 110 from the first mounting surface 1106 to the second mounting surface 1107. The base portion 110 is adapted to be fixed to the outside of the device to be cooled by a fastener passing through the mounting hole 1126. Installing and fixing the oil cooler and the device to be cooled by fasteners is simple in operation, convenient for installation and disassembly, and low in cost.

[0049] In some embodiments of the oil cooler provided by the present utility model, as Figure 1 and Figure 6As shown, the oil inlet 1101 and the oil outlet are both provided on the second mounting surface 1107. Since the second mounting surface 1107 is fixed to the outside of the device to be cooled, the oil inlet 1101 and the oil outlet are both provided on the second mounting surface 1107, which facilitates the oil to be cooled inside the device to enter the oil cooler through the oil inlet 1101 along the shortest path and return to the inside of the device to be cooled along the shortest path through the oil outlet. In practical applications, the device to be cooled has a housing, and an accommodation space for accommodating working components and the oil for lubricating and cooling the working components is formed inside the housing. The oil cooler is attached to or fixed to the outer wall of the housing of the device to be cooled through an oil circuit board, so that the oil inside the housing can enter the oil cooler directly through the oil outlet hole and the oil inlet hole provided on the housing and corresponding to the positions of the oil inlet 1101 and the oil outlet on the mounting surface of the oil cooler without passing through an external oil pipe.

[0050] In this embodiment, a gasket, such as an O-ring, is provided between the oil inlet 1101 on the second mounting surface 1107 and the oil outlet hole of the device to be cooled to ensure that the oil does not leak when the oil enters the oil inlet 1101 of the oil cooler from the oil outlet hole of the device to be cooled; a gasket is provided between the oil outlet on the second mounting surface 1107 and the oil inlet hole of the device to be cooled to ensure that the oil does not leak when the oil enters the oil inlet hole of the device to be cooled from the oil outlet of the oil cooler, thus ensuring the sealing reliability of the oil circulation system.

[0051] In some embodiments of the oil cooler provided by the present utility model, the cooling medium inlet 1122, the cooling medium flow channel and the cooling medium outlet 1123 are interconnected. The cooling medium inlet 1122 and / or the cooling medium outlet 1123 can be provided on the second mounting surface 1107. The cooling medium inlet 1122 and one end of the cooling medium flow channel are connected through the cooling medium inlet 1122 flow channel provided on the base portion 110. Similarly, the cooling medium outlet 1123 and the other end of the cooling medium flow channel can be connected through the cooling medium outlet 1123 flow channel provided on the base portion 110.

[0052] In other embodiments, the cooling medium inlet 1122 and / or the cooling medium outlet 1123 can be provided on the heat exchange portion 120.

[0053] Such as Figures 3a - 6, in some embodiments of the oil cooler provided by the present utility model, the base portion 110 of the oil cooler is provided with a bypass flow channel 1103, an oil inlet flow channel 1104, and a straight-through flow channel 1105. The oil outlet and the bypass valve port 2102 are connected through the bypass flow channel 1103, the oil inlet 1101 and the oil inlet valve port 2101 are connected through the oil inlet flow channel 1104, and the first end of the oil cooler flow channel and the straight-through valve port 2103 are connected through the straight-through flow channel 1105. The bypass flow channel 1103, the oil inlet flow channel 1104, and the straight-through flow channel 1105 are arranged on the base portion 110, which facilitates the connection between the oil inlet valve port 2101 of the control valve 200 also fixed on the base portion 110 and the oil inlet flow channel 1104, facilitates the connection between the straight-through valve port 2103 of the control valve 200 also fixed on the base portion 110 and the first end of the oil flow channel, and also facilitates the connection between the bypass valve port 2102 of the control valve 200 also fixed on the base portion 110 and the bypass flow channel 1103.

[0054] As Figure 4 shown, in some embodiments of the oil cooler provided by the present utility model, the base portion 110 includes a base plate 1108 and a cover plate 1109 stacked in sequence. The side of the base plate 1108 facing away from the cover plate 1109 forms a first mounting surface 1106, and the side of the cover plate 1109 facing away from the base plate 1108 forms a second mounting surface 1107; the oil inlet flow channel 1104 includes a first flow channel groove 1110 opened between the base plate 1108 and the cover plate 1109, and the oil inlet flow channel 1104 further includes a first hole 1113 opened on the base plate 1108. The oil inlet 1101, the first flow channel groove 1110, the first hole 1113, and the oil inlet valve port 2101 are connected in sequence. The oil inlet 1101 and the oil outlet are opened on the cover plate 1109 through the thickness direction of the cover plate 1109.

[0055] In this embodiment, a first mounting surface 1106 is formed on the side of the substrate 1108 facing away from the cover plate 1109 for mounting the heat exchange part 120 and the control valve 200. A second mounting surface 1107 is formed on the side of the cover plate 1109 facing away from the substrate 1108 for fixing the oil cooler to the device to be cooled through the second mounting surface 1107. The oil inlet flow channel 1104 includes a first flow channel groove 1110 formed between the substrate 1108 and the cover plate 1109. It can be understood that the oil inlet flow channel 1104 can be formed on the substrate 1108, or on the cover plate 1109, or on both the substrate 1108 and the cover plate 1109 simultaneously. When the oil inlet flow channel 1104 is formed on the substrate 1108, the bottom wall and the peripheral wall of the first flow channel groove 1110 are on the substrate 1108, and the cover plate 1109 serves as the top wall covering the first flow channel groove 1110. When the oil inlet flow channel 1104 is formed on the cover plate 1109, the bottom wall and the peripheral wall of the first flow channel groove 1110 are on the cover plate 1109, and the substrate 1108 serves as the top wall covering the first flow channel groove 1110. When the oil inlet flow channel 1104 is formed on both the substrate 1108 and the cover plate 1109 simultaneously, the top wall of the first flow channel groove 1110 is on one of the substrate 1108 and the cover plate 1109, the bottom wall of the first flow channel groove 1110 is on the other of the substrate 1108 and the cover plate 1109, and a part of the peripheral wall of the first flow channel groove 1110 is on the substrate 1108 and the other part is on the cover plate 1109. The substrate 1108 and the cover plate 1109 jointly enclose the first flow channel groove 1110, making it easier to process and form the first flow channel groove 1110.

[0056] In this embodiment, the oil flowing into the oil cooler from the oil inlet 1101 flows through the first flow channel groove 1110, the first hole 1113, and the oil inlet valve port 2101 in sequence. When the oil cooler is in the bypass state, the oil at the oil inlet valve port 2101 flows into the bypass valve port 2102, flows through the bypass flow channel 1103, and flows out of the oil cooler from the oil outlet. When the oil cooler is in the direct-through state, the oil at the oil inlet valve port 2101 flows into the direct-through valve port 2103, flows through the oil cooling flow channel, and flows out of the oil cooler from the oil outlet.

[0057] As Figure 4 shown, in some embodiments of the oil cooler provided by the present utility model, the base part 110 includes a substrate 1108 and a cover plate 1109 stacked in sequence. A first mounting surface 1106 is formed on the side of the substrate 1108 facing away from the cover plate 1109, and a second mounting surface 1107 is formed on the side of the cover plate 1109 facing away from the substrate 1108. The bypass flow channel 1103 includes a second flow channel groove 1111 formed between the substrate 1108 and the cover plate 1109. The bypass flow channel 1103 further includes a second hole 1116 formed on the substrate 1108. The bypass valve port 2102, the second hole 1116, the second flow channel groove 1111, and the oil outlet 1102 are connected in sequence. The second end of the oil cooling flow channel and the oil outlet 1102 are connected in sequence.

[0058] In this embodiment, the bypass flow channel 1103 includes a second flow channel groove 1111 formed between the substrate 1108 and the cover plate 1109. It can be understood that the bypass flow channel 1103 can be formed on the substrate 1108, on the cover plate 1109, or on both the substrate 1108 and the cover plate 1109 simultaneously. When the bypass flow channel 1103 is formed on the substrate 1108, the bottom wall and the peripheral wall of the second flow channel groove 1111 are on the substrate 1108, and the cover plate 1109 serves as the top wall covering the second flow channel groove 1111; when the bypass flow channel 1103 is formed on the cover plate 1109, the bottom wall and the peripheral wall of the second flow channel groove 1111 are on the cover plate 1109, and the substrate 1108 serves as the top wall covering the second flow channel groove 1111; when the bypass flow channel 1103 is formed on both the substrate 1108 and the cover plate 1109 simultaneously, the top wall of the second flow channel groove 1111 is on one of the substrate 1108 and the cover plate 1109, the bottom wall of the second flow channel groove 1111 is on the other of the substrate 1108 and the cover plate 1109, and a part of the peripheral wall of the second flow channel groove 1111 is on the substrate 1108 and the other part is on the cover plate 1109. The substrate 1108 and the cover plate 1109 jointly enclose the second flow channel groove 1111, making the processing and forming of the second flow channel groove 1111 easier.

[0059] In this embodiment, when the oil cooler is in the bypass state, the oil liquid entering the oil cooler from the oil inlet 1101 flows from the oil inlet valve port 2101 to the bypass valve port 2102, and then successively flows through the second hole 1116, the second flow channel groove 1111, and the oil outlet 1102 to flow out of the oil cooler; a third hole 1117 penetrating the thickness of the substrate 1108 is further formed on the substrate 1108, and the second end of the oil liquid cooling flow channel is communicated with the bypass flow channel 1103 through the third hole 1117. When the oil cooler is in the direct-through state, the oil liquid entering the oil liquid cooling flow channel from the oil inlet 1101 through the oil inlet valve port 2101 and the direct-through valve port 2103 successively flows out of the oil cooler from the third hole 1117, the bypass flow channel 1103, and the oil outlet 1102.

[0060] As Figure 5 shown, in some embodiments of the oil cooler provided by the present utility model, the base part 110 includes a substrate 1108 and a cover plate 1109 stacked in sequence. A first mounting surface 1106 is formed on the side of the substrate 1108 facing away from the cover plate 1109, and a second mounting surface 1107 is formed on the side of the cover plate 1109 facing away from the substrate 1108; the direct-through flow channel 1105 includes a third flow channel groove 1112 formed on the substrate 1108, and a fourth hole 1118 and a fifth hole 1119 formed on the substrate 1108. The direct-through valve port 2103, the fourth hole 1118, the third flow channel groove 1112, the fifth hole 1119, and the first end of the oil liquid cooling flow channel are successively communicated.

[0061] In this embodiment, the substrate 1108 includes a first substrate 1120 and a second substrate 1121 which are stacked on each other. On one side of the first substrate 1120 facing away from the second substrate 1121, a first mounting surface 1106 is formed for mounting the heat exchange part 120 and the control valve 200. On the side of the second substrate 1121 facing away from the first substrate 1120, it is connected to the cover plate 1109. The straight-through flow channel 1105 includes a third flow channel groove 1112 formed between the first substrate 1120 and the second substrate 1121. It can be understood that the straight-through flow channel 1105 can be formed on the first substrate 1120, or on the second substrate 1121, or on both the first substrate 1120 and the second substrate 1121 at the same time. When the straight-through flow channel 1105 is formed on the first substrate 1120, the bottom wall and the peripheral wall of the third flow channel groove 1112 are on the first substrate 1120, and the second substrate 1121 serves as the top wall covering the third flow channel groove 1112; when the straight-through flow channel 1105 is formed on the second substrate 1121, the bottom wall and the peripheral wall of the third flow channel groove 1112 are on the second substrate 1121, and the first substrate 1120 serves as the top wall covering the third flow channel groove 1112; when the straight-through flow channel 1105 is formed on both the first substrate 1120 and the second substrate 1121 at the same time, the top wall of the third flow channel groove 1112 is on one of the first substrate 1120 and the second substrate 1121, the bottom wall of the third flow channel groove 1112 is on the other of the first substrate 1120 and the second substrate 1121, and a part of the peripheral wall of the third flow channel groove 1112 is on the first substrate 1120 and the other part is on the second substrate 1121. The first substrate 1120 and the second substrate 1121 jointly enclose the third flow channel groove 1112, making it easier to process and form the third flow channel groove 1112.

[0062] In this embodiment, both the fourth hole 1118 and the fifth hole 1119 penetrate through the first substrate 1120 along the thickness direction of the first substrate 1120. When the oil cooler is in a straight-through state, the oil liquid entering the oil cooler from the oil inlet 1101 flows from the oil inlet valve port 2101 to the straight-through valve port 2103, and then successively flows through the fourth hole 1118, the third flow channel groove 1112, and the fifth hole 1119, and enters the oil liquid cooling flow channel. After exchanging heat with the cooling medium, it flows out of the oil cooler from the second end of the oil liquid cooling flow channel, the third hole 1117, and the oil outlet.

[0063] In this embodiment, it should be noted that, such as Figure 5 and Figure 6, the first hole 1113 of the oil inlet flow channel 1104 can be formed by connecting a first sub-hole 1114 and a second sub-hole 1115 that sequentially penetrate the first substrate 1120 and the second substrate 1121 along the thickness direction of the first substrate 1120; the second hole 1116 of the bypass flow channel 1103 is provided on the first substrate 1120 and penetrates the first substrate 1120 in its own thickness direction, and the second end of the oil cooling flow channel is connected to the third hole 1117 of the bypass flow channel 1103 which is provided on the first substrate 1120 and penetrates the first substrate 1120 in its own thickness direction; the fourth hole 1118 of the straight-through flow channel 1105 connects the straight-through valve port 2103 and the third flow channel groove 1112, and the fifth hole 1119 of the straight-through flow channel 1105 connects the third flow channel groove 1112 and the first end of the oil cooling flow channel.

[0064] As Figure 3a and Figure 3b shown, in some embodiments of the oil cooler provided by the present utility model, the control valve 200 includes a valve body 210 and a valve core 220. A valve cavity 2104 is formed in the valve body 210, and the valve core 220 is movably arranged in the valve cavity 2104. As Figure 3a , when the valve core 220 is in the first position, the oil inlet valve port 2101 is communicated with the bypass valve port 2102, and the oil inlet valve port 2101 is disconnected from the straight-through valve port 2103; as Figure 3b , when the valve core 220 is in the second position, the oil inlet valve port 2101 is communicated with the straight-through valve port, and the oil inlet valve port 2101 is disconnected from the bypass valve port 2102.

[0065] In this embodiment, when the valve core 220 is in the first position, the oil inlet valve port 2101 is communicated with the bypass valve port 2102, so that the oil cooler is in a bypass state. When the valve core 220 is in the second position, the oil inlet valve port 2101 is communicated with the straight-through valve port 2103, so that the oil cooler is in a straight-through state. It can be understood that the bypass state is a state where the oil flows out of the oil cooler through the bypass flow channel 1103 and does not exchange heat with the cooling medium through the oil cooling flow channel, and the straight-through state is a state where the oil enters the oil cooling flow channel, exchanges heat with the cooling medium, and then flows out of the oil cooler. By setting the valve cavity 2104, the valve core 220 and the two position states of the valve core 220, the control valve 200 is configured as a two-position three-way valve. The two-position three-way valve is a standard part or a mature general part in the industry. The corresponding model of the valve can be reasonably selected according to conditions such as the cooling flow rate required by the device to be cooled, etc., without re-developing the control valve 200, which greatly shortens the development cycle of the oil cooler and reduces the development cost and the production cost of the oil cooler.

[0066] In some embodiments of the oil cooler provided by the present utility model, the control valve 200 is a solenoid valve. The solenoid valve includes an electromagnet, a valve body 210, and a valve core 220. The solenoid valve has a valve cavity 2104. The oil inlet valve port 2101, the direct-through valve port 2103, and the bypass valve port 2102 are all opened on the valve body 210. The oil inlet valve port 2101, the direct-through valve port 2103, and the bypass valve port 2102 are all communicated with the valve cavity 2104. The valve core 220 is connected to the electromagnet to drive the valve core 220 to be in a first position or a second position.

[0067] In this embodiment, when the electromagnet is energized, a magnetic field is generated to attract the valve core 220 to move, so that the valve core 220 is in the first position, as Figure 3a shown. When the electromagnet is de-energized, the magnetic force disappears, and the valve core 220 moves to the second position under the action of the return spring, as Figure 3b shown. The solenoid valve provides more precise control compared to a temperature-sensing valve with a thermal element.

[0068] An embodiment of the present utility model also provides a transmission. The oil cooler is installed on the transmission housing. That is, the device to be cooled is configured as a transmission. The oil enters the oil cooler from the oil outlet hole on the transmission housing to cool the oil in the transmission housing, and flows back into the transmission from the oil inlet hole on the transmission housing to cool and lubricate components such as the transmission pairs in the transmission. Moreover, the oil cooler can also regulate the oil temperature in the transmission to keep the oil temperature within a range suitable for the operation of the transmission. The transmission provided by the present utility model has all the beneficial effects of the above oil cooler.

[0069] In some embodiments of the transmission provided by the present utility model, in addition to including the above oil cooler, the transmission further includes a temperature measuring component for detecting the oil temperature, such as a temperature sensor. The temperature measuring component is used to detect the oil temperature in the transmission. The temperature measuring component is electrically connected to the electromagnet of the control valve 200. The transmission further includes a controller. The temperature measuring component is electrically connected to the control valve 200 through the controller. The temperature signal detected by the temperature measuring component is converted into an electrical signal and transmitted to the controller. The controller controls the electromagnet to be energized or de-energized according to this electrical signal, so that the valve core of the control valve 200 is in the first position or the second position.

[0070] In this embodiment, the controller can issue instructions according to a predetermined temperature to control the energization or de-energization of the electromagnet, thereby controlling the valve core of the control valve 200 to be in the first position, that is, the oil cooler is in a bypass state; or, the valve core of the control valve 200 is in the second position, that is, the oil cooler is in a direct-through state. For example, when the signal received by the controller indicates that the oil temperature is less than the first predetermined temperature, the controller issues an instruction to the control valve 200 to make the valve core 220 in the first position, and the oil entering the oil cooler directly flows out from the bypass flow channel 1103, so that the oil can exchange heat with the working components in the transmission as soon as possible to gradually increase the temperature; when the signal received by the controller indicates that the oil temperature is greater than the second predetermined temperature, the controller issues an instruction to the control valve 200 to make the valve core 220 in the second position, and the oil entering the oil cooler enters the oil cooling flow channel to be cooled, so that the oil temperature gradually decreases. Among them, the first predetermined temperature is less than the second predetermined temperature, and the first predetermined temperature and the second predetermined temperature can be set according to the viscosity of the oil and the working conditions of the transmission.

[0071] In some embodiments of the transmission provided by the present utility model, the transmission further includes a speed sensor for detecting the speed of the main shaft of the transmission, and the control valve 200 is configured to control the movement of the valve core 220 through the speed signal detected by the speed sensor and the temperature signal of the oil and / or cooling medium detected by the temperature sensor. By jointly controlling the working state of the oil cooler with multiple parameters, the transmission works in the optimal oil temperature range, improving the working performance of the transmission.

[0072] The embodiment of the present utility model further provides a powertrain including the above-mentioned transmission. The powertrain provided by the present utility model has all the beneficial effects of the above-mentioned transmission. The powertrain can be a pure electric powertrain, a hybrid powertrain, or of course a fuel powertrain.

[0073] The embodiment of the present utility model further provides a vehicle including the above-mentioned powertrain. The vehicle provided by the present utility model has all the beneficial effects of the above-mentioned powertrain.

[0074] In the description of this specification, the description with reference to terms such as "specific embodiment" and "specific example" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0075] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirits of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. An oil cooler, characterized in that: Suitable for being detachably fixed on the outside of a device to be cooled, the oil cooler comprises a body (100) and a control valve (200): The control valve (200) comprises an oil inlet valve port (2101), a bypass valve port (2102) and a through valve port (2103), and the oil inlet valve port (2101) is selectively connected to the through valve port (2103) or the bypass valve port (2102); The main body (100) is provided with: An oil cooling channel, wherein a first end of the oil cooling channel is in communication with the through valve port (2103); An oil inlet (1101), the oil inlet (1101) being in communication with the oil inlet valve port (2101); An oil outlet (1102), the oil outlet (1102) being respectively connected to the bypass valve port (2102) and the second end of the oil cooling channel; A cooling medium flow channel, wherein the cooling medium flow channel and the oil cooling flow channel exchange heat with each other.

2. The oil cooler according to claim 1, characterized in that: The control valve (200) is detachably fixed to the body (100).

3. The oil cooler according to claim 1, characterized in that: The body (100) is also provided with: A bypass flow channel (1103), the oil outlet (1102) and the bypass valve port (2102) are connected via the bypass flow channel (1103); An oil inlet flow channel (1104), the oil inlet port (1101) and the oil inlet valve port (2101) are connected via the oil inlet flow channel (1104); A straight-through flow channel (1105), wherein the first end of the oil cooling flow channel and the straight-through valve port (2103) are connected via the straight-through flow channel (1105).

4. The oil cooler according to claim 1, characterized in that: The body (100) includes a base portion (110) and a heat exchange portion (120), the base portion (110) having a first mounting surface (1106) and a second mounting surface (1107) opposite to each other, the heat exchange portion (120) being mounted on the first mounting surface (1106), the control valve (200) being mounted on the first mounting surface (1106), and the second mounting surface (1107) being suitable for being mounted on the outside of the device to be cooled; the oil cooling flow channel and the cooling medium flow channel are formed in the heat exchange portion (120).

5. The oil cooler according to claim 4, characterized in that: The base portion (110) is provided with a mounting hole (1126) extending from the first mounting surface (1106) to the second mounting surface (1107), and the base portion (110) is suitable for being fixed to the outside of the device to be cooled by means of a fastener passing through the mounting hole (1126).

6. The oil cooler according to claim 4, characterized in that: The oil inlet (1101) and the oil outlet (1102) are both opened on the second mounting surface (1107).

7. The oil cooler according to claim 4, characterized in that: The base portion (110) comprises: A bypass flow channel (1103), the oil outlet (1102) and the bypass valve port (2102) are connected via the bypass flow channel (1103); An oil inlet flow channel (1104), the oil inlet port (1101) and the oil inlet valve port (2101) are connected via the oil inlet flow channel (1104); A straight flow channel (1105), wherein the first end of the oil cooler flow channel and the straight valve port (2103) are connected via the straight flow channel (1105).

8. The oil cooler according to claim 7, characterized in that: The base portion (110) comprises a substrate (1108) and a cover plate (1109) stacked in sequence, the side of the substrate (1108) facing away from the cover plate (1109) forming the first mounting surface (1106), and the side of the cover plate (1109) facing away from the substrate (1108) forming the second mounting surface (1107); The oil inlet channel (1104) includes a first channel groove (1110) opened between the substrate (1108) and the cover plate (1109), and the oil inlet channel (1104) also includes a first hole (1113) opened on the substrate (1108); the oil inlet port (1101), the first channel groove (1110), the first hole (1113) and the oil inlet valve port (2101) are connected in sequence.

9. The oil cooler according to claim 7, characterized in that: The base portion (110) comprises a substrate (1108) and a cover plate (1109) stacked in sequence, the side of the substrate (1108) facing away from the cover plate (1109) forming the first mounting surface (1106), and the side of the cover plate (1109) facing away from the substrate (1108) forming the second mounting surface (1107); The bypass flow channel (1103) comprises a second flow channel groove (1111) provided between the base plate (1108) and the cover plate (1109), and the bypass flow channel (1103) further comprises a second hole (1116) provided on the base plate (1108), and the bypass valve port (2102), the second hole (1116), the second flow channel groove (1111) and the oil outlet (1102) are sequentially connected; The base plate (1108) is also provided with a third hole (1117), and the second end of the oil cooling channel, the third hole (1117) and the oil outlet (1102) are sequentially connected.

10. The oil cooler according to claim 7, characterized in that: The base portion (110) comprises a substrate (1108) and a cover plate (1109) stacked in sequence, the side of the substrate (1108) facing away from the cover plate (1109) forming the first mounting surface (1106), and the side of the cover plate (1109) facing away from the substrate (1108) forming the second mounting surface (1107); The straight-through flow channel (1105) includes a third flow channel groove (1112), a fourth hole (1118) and a fifth hole (1119) which are opened on the substrate (1108); the fourth hole (1118) and the fifth hole (1119) are both opened on the substrate (1108); the straight-through valve port (2103), the fourth hole (1118), the third flow channel groove (1112), the fifth hole (1119) and the first end of the oil cooling flow channel are connected in sequence.

11. The oil cooler according to claim 1, characterized in that: The control valve (200) comprises a valve body (210) and a valve core (220); a valve cavity (2104) is provided in the valve body (210); the valve core (220) is movably arranged in the valve cavity (2104); and the oil inlet valve port (2101), the bypass valve port (2102) and the through valve port (2103) are all in communication with the valve cavity (2104); When the valve core (220) is in the first position, the oil inlet valve port (2101) is connected to the through valve port (2103), and the oil inlet valve port (2101) is disconnected from the bypass valve port (2102); When the valve core (220) is in the second position, the oil inlet valve port (2101) is connected to the bypass valve port (2102), and the oil inlet valve port (2101) is disconnected from the through valve port (2103).

12. The oil cooler according to claim 11, characterized in that: The control valve (200) is a solenoid valve.

13. A transmission, characterized in that: The oil cooler comprises the oil cooler according to any one of claims 1 to 12, wherein the device to be cooled is configured as the transmission.

14. The transmission according to claim 13, characterized in that It also includes a temperature measuring component for detecting the temperature of the oil, and the temperature measuring component is connected to the control valve (200).

15. A powertrain, characterized in that: Including the transmission as claimed in claim 14.

16. A vehicle, characterized in that: Includes the powertrain as described in claim 15.

Images