Oil cooler, reduction gearbox, electric assembly and vehicle

Abstract

The utility model provides an oil cooler, a reduction gearbox, an electric assembly and a vehicle. The oil cooler comprises a shell and a first pipeline component, a cooling part and an oil liquid part are arranged in the shell, and the cooling part is used for exchanging heat with the oil liquid part; the first pipeline component comprises a medium inlet pipeline, a medium outlet pipeline and a first bypass pipeline, the medium inlet pipeline and the medium outlet pipeline are arranged in parallel, and the first bypass pipeline is perpendicular to the medium inlet pipeline and the medium outlet pipeline; the medium inlet pipeline and the medium outlet pipeline are both communicated with the cooling part, and the medium inlet pipeline and the medium outlet pipeline are selectively communicated with each other or disconnected from each other through the first bypass pipeline; therefore, the flow resistance of the cooling medium in the oil cooler is reduced, and the temperature regulation and control efficiency of the oil cooler is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, and more specifically, to an oil cooler, a reduction box, an electric assembly and a vehicle. Background Art

[0002] In the prior art, in order to ensure that the lubricating oil in the reduction gearbox is kept at an appropriate temperature, a temperature control device such as a cooling unit and a control valve is usually provided in the oil cooler of the reduction gearbox. However, the cooling medium pipelines of most oil coolers are currently complex, resulting in a large flow resistance of the cooling medium, which seriously affects the temperature control efficiency of the oil cooler on the lubricating oil.

[0003] Therefore, it is necessary to provide a new technical solution to solve the above technical problems. Utility Model Content

[0004] One purpose of the utility model is to provide a new technical solution for an oil cooler, a reduction gearbox, an electric assembly and a vehicle.

[0005] According to a first aspect of the utility model, an oil cooler is provided, wherein the oil cooler comprises:

[0006] A housing, wherein a cooling part and an oil part are arranged in the housing, and the cooling part is used for heat exchange with the oil part;

[0007] a first pipeline component, the first pipeline component comprising a medium inlet pipeline, a medium outlet pipeline and a first bypass pipeline, the medium inlet pipeline is arranged in parallel with the medium outlet pipeline, and the first bypass pipeline is perpendicular to the medium inlet pipeline and the medium outlet pipeline;

[0008] The medium inlet pipeline and the medium outlet pipeline are both in communication with the cooling portion, and the medium inlet pipeline and the medium outlet pipeline are selectively connected to or disconnected from each other through the first bypass pipeline.

[0009] Optionally, the first pipeline component is arranged outside the shell.

[0010] Optionally, the medium inlet pipeline, the medium outlet pipeline and the first bypass pipeline are all arranged in the same plane.

[0011] Optionally, a first valve is further included. The first valve is provided at one end of the first bypass line and / or the other end of the first bypass line. The first valve is used to selectively connect or disconnect the medium inlet line and the medium outlet line to each other through the first bypass line.

[0012] Optionally, the medium inlet pipeline selectively communicates with one end of the first bypass pipeline and the cooling portion, and the medium outlet pipeline communicates with the other end of the first bypass pipeline.

[0013] Optionally, a second valve is further included, the second valve includes a first connection port, a second connection port and a third connection port, the first connection port is communicated with the medium inlet pipeline, the second connection port is communicated with the cooling part, and the third connection port is communicated with the first bypass pipeline;

[0014] The second valve has a first state and a second state;

[0015] When the second valve is in the first state, the first connection port is connected to the second connection port, and the first connection port is disconnected from the third connection port;

[0016] When the second valve is in the second state, the first connection port is communicated with the third connection port, and the first connection port is disconnected from the second connection port.

[0017] Optionally, a first cavity is formed at the intersection of the medium inlet pipeline and the first bypass pipeline, the first cavity has a first opening, the second valve is passed through the first opening and installed in the first cavity, and the first opening faces away from the first bypass pipeline.

[0018] Optionally, the medium outlet pipeline selectively communicates with one end of the first bypass pipeline and the cooling portion, and the medium inlet pipeline communicates with the other end of the first bypass pipeline.

[0019] Optionally, a third valve is further included, the third valve including a fourth connection port, a fifth connection port and a sixth connection port, the fourth connection port is communicated with the medium outlet pipeline, the fifth connection port is communicated with the cooling part, and the sixth connection port is communicated with the first bypass pipeline;

[0020] The third valve has a third state and a fourth state;

[0021] When the third valve is in the third state, the fourth connection port is connected to the fifth connection port, and the fourth connection port is disconnected from the sixth connection port;

[0022] When the third valve is in the fourth state, the fourth connection port is communicated with the sixth connection port, and the fourth connection port is disconnected from the fifth connection port.

[0023] Optionally, a second cavity is formed at the intersection of the medium outlet pipeline and the first bypass pipeline, the second cavity has a second opening, the third valve is passed through the second opening and installed in the second cavity, and the second opening faces away from the first bypass pipeline.

[0024] According to a second aspect of the present utility model, a reduction gearbox is provided, comprising an oil cooler as described in any one of the first aspects.

[0025] Optionally, the oil cooler is installed on the outside of the reduction gearbox.

[0026] Optionally, the reduction gearbox further comprises a sensor for detecting the temperature of the oil in the reduction gearbox, and the medium inlet pipeline and the medium outlet pipeline can be selectively connected to or disconnected from each other according to the temperature of the oil.

[0027] According to a third aspect of the present invention, an electric assembly is provided, comprising a reduction gearbox as described in any one of the second aspects.

[0028] According to a fourth aspect of the utility model, a vehicle is provided, comprising the electric assembly as described in the third aspect.

[0029] According to the oil cooler provided by the embodiment of the utility model, the oil cooler includes a shell and a first pipeline component, the shell is provided with a cooling part and an oil part, the cooling part is used for heat exchange with the oil part; the first pipeline component includes a medium inlet pipeline, a medium outlet pipeline and a first bypass pipeline, the medium inlet pipeline is arranged in parallel with the medium outlet pipeline, and the first bypass pipeline is perpendicular to the medium inlet pipeline and the medium outlet pipeline; the medium inlet pipeline and the medium outlet pipeline are both connected to the cooling part, and the medium inlet pipeline and the medium outlet pipeline are selectively connected or disconnected with each other through the first bypass pipeline; thereby, the flow resistance of the cooling medium in the oil cooler is reduced, and the temperature control efficiency of the oil cooler is improved.

[0030] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0032] Figure 1 It is a top view of the first surface of the oil cooler in one embodiment of the utility model.

[0033] Figure 2It is a cross-sectional view of an oil cooler in one embodiment of the utility model.

[0034] Figure 3 It is a top view of the second surface of the oil cooler in one embodiment of the utility model.

[0035] Figure 4 It is a schematic structural diagram of a reduction gearbox in one embodiment of the utility model.

[0036] Description of reference numerals:

[0037] 1. Oil cooler; 101. Shell; 1011. Cooling part; 10111. Cooling layer; 1012. Oil part; 10121. Oil layer; 102. First pipeline component; 1021. Medium inlet pipeline; 1022. Medium outlet pipeline; 1023. First bypass pipeline; 103. First valve; 104. Oil inlet pipeline; 105. Oil outlet pipeline; 2. Reducer housing; 201. First sensor; 202. Second sensor. DETAILED DESCRIPTION

[0038] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0039] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be understood as limiting the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0040] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this application, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0041] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0042] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0044] According to an embodiment of the present application, an oil cooler 1 is provided. Figures 1 to 4 The oil cooler 1 includes a shell 101 and a first pipeline component 102, wherein a cooling portion 1011 and an oil portion 1012 are provided in the shell 101, wherein the cooling portion 1011 is used for heat exchange with the oil portion 1012; the first pipeline component 102 includes a medium inlet pipeline 1021, a medium outlet pipeline 1022 and a first bypass pipeline 1023, wherein the medium inlet pipeline 1021 and the medium outlet pipeline 1022 are arranged in parallel, and the first bypass pipeline 1023 is perpendicular to the medium inlet pipeline 1021 and the medium outlet pipeline 1022; the medium inlet pipeline 1021 and the medium outlet pipeline 1022 are both connected to the cooling portion 1011, and the medium inlet pipeline 1021 and the medium outlet pipeline 1022 are selectively connected to or disconnected from each other through the first bypass pipeline 1023.

[0045] Specifically, Figure 1 and Figure 2As shown, the shell 101 of the oil cooler 1 of the embodiment of the present application has a first surface, and the first pipe component 102 is arranged on the first surface. The first pipe component 102 includes a medium inlet pipeline 1021, a medium outlet pipeline 1022 and a first bypass pipeline 1023. The medium inlet pipeline 1021 and the medium outlet pipeline 1022 are both connected to the cooling part 1011, so that the cooling medium can flow from the medium inlet pipeline 1021 into the cooling part 1011 to achieve cooling of the oil liquid part 1012. In addition, the cooling medium after cooling the oil liquid part 1012 can also flow out of the cooling part 1011 from the medium outlet pipeline 1022, thereby achieving cyclic cooling of the oil liquid part 1012.

[0046] The first surface has a first end and a second end extending along the length direction of the housing 101, the medium inlet pipeline 1021 is arranged at the first end, and the medium inlet pipeline 1021 is perpendicular to the first end; the medium outlet pipeline 1022 is arranged at the second end, and the medium outlet pipeline 1022 is perpendicular to the second end. The medium inlet pipeline 1021 is arranged in parallel with the medium outlet pipeline 1022; the first bypass pipeline 1023 is perpendicular to the medium inlet pipeline 1021 and the medium outlet pipeline 1022, and the first bypass pipeline 1023 is parallel to the first surface.

[0047] Thus, since the medium inlet pipeline 1021 and the medium outlet pipeline 1022 are both connected to the cooling part 1011, and the medium inlet pipeline 1021 and the medium outlet pipeline 1022 are arranged in parallel, the medium inlet pipeline 1021, the medium outlet pipeline 1022 and the cooling part 1011 can form two right angles. Furthermore, when the cooling medium is injected into the cooling part 1011 through the medium inlet pipeline 1021, the cooling medium only needs to pass through two right angles to cool the oil part 1012, which effectively reduces the influence of multiple sections of pipelines on the flow resistance of the cooling medium and significantly improves the cooling efficiency of the cooling medium.

[0048] In addition, the oil cooler 1 described in the embodiment of the present application can be applied to a reduction gearbox in an electric assembly, so as to achieve oil temperature control of the lubricating oil in the reduction gearbox through the cooling part 1011.

[0049] However, when the electric assembly is working, the lubricating oil temperature in the electric assembly is low, which may result in low working efficiency of the electric assembly, especially when the electric assembly is started at low temperature or operates in a cold environment. Therefore, the embodiment of the present application also sets the first bypass line 1023 perpendicular to the medium inlet line 1021 and the medium outlet line 1022, so that the medium inlet line 1021, the medium outlet line 1022 and the first bypass line 1023 can form two right angles.

[0050] In this way, when the oil temperature in the oil section 1012 is low, the present application can also bypass the cooling section 1011 through the first bypass line 1023, that is, selectively connect or disconnect the medium inlet line 1021 and the medium outlet line 1022 through the first bypass line 1023 to reduce the flow rate of the cooling medium to the cooling section 1011, thereby achieving control of the oil temperature in the oil section 1012.

[0051] Furthermore, since the cooling medium only needs to pass through two right angles to flow out of the medium outlet pipe 1022, the first pipe component 102 described in the embodiment of the present application can make the flow resistance of the cooling medium smaller, thereby further improving the control of the oil temperature in the oil part 1012, and significantly improving the temperature control efficiency of the oil cooler 1.

[0052] In addition, the medium outlet pipeline 1022 described in the embodiment of the present application can also be set at the second end, and the medium inlet pipeline 1021 can also be set at the first end. Of course, the medium outlet pipeline 1022 and the medium inlet pipeline 1021 can also be set at any position of the first surface. Technical personnel in this field can make a choice according to actual needs, and this application does not make any specific restrictions here.

[0053] In addition, the cooling medium described in the embodiments of the present application includes at least one of water, air, hydrocarbon cooling medium and fluorocarbon cooling medium. Those skilled in the art can choose according to actual needs, and the present application does not make any specific restrictions here.

[0054] It should be noted that the parallelism and perpendicularity in the embodiments of the present application are not strictly parallelism and perpendicularity, but can be basically parallel or basically perpendicular. That is, non-strict parallelism and perpendicularity caused by processing errors or installation errors also fall within the scope of basically parallelism and basically perpendicularity referred to in the embodiments of the present application.

[0055] In one embodiment, the first pipe component 102 is disposed outside the housing 101 .

[0056] Specifically, Figure 1 and Figure 2As shown, the embodiment of the present application arranges the first pipeline component 102 outside the shell 101, so that when arranging, repairing and replacing the first pipeline component 102, the difficulty of arranging the first pipeline component 102 can be effectively simplified, and the maintenance efficiency and replacement efficiency of the first pipeline component 102 can be improved.

[0057] In addition, in the embodiment of the present application, the first pipeline component 102 can also be arranged inside the oil cooler 1, as long as it does not perform heat exchange with the oil part 1012 of the oil cooler 1. Those skilled in the art can make a choice according to actual needs, and the present application does not make any specific restrictions here.

[0058] In one embodiment, the medium inlet pipeline 1021, the medium outlet pipeline 1022 and the first bypass pipeline 1023 are all arranged in the same plane, that is, not strictly in the same plane due to processing errors or installation errors, but also in the same plane as referred to in the embodiment of the present application.

[0059] Specifically, Figure 1 and Figure 2 As shown, the embodiment of the present application arranges the medium inlet pipeline 1021, the medium outlet pipeline 1022 and the first bypass pipeline 1023 in the same plane, so that when the first pipeline component 102 is arranged in the shell 101, on the one hand, the structure of the first pipeline component 102 can be further simplified, the oil path can be shortened, the flow resistance can be reduced, and the oil heating or cooling efficiency can be improved; on the other hand, the difficulty of arranging the first pipeline component can be reduced, and the manufacturing cost of the first pipeline component 102 can be reduced.

[0060] Among them, the medium inlet pipeline 1021, the medium outlet pipeline 1022 and the first bypass pipeline 1023 described in the embodiment of the present application can form an integrated structure to be installed on the shell 101 at one time; or, the medium inlet pipeline 1021, the medium outlet pipeline 1022 and the first bypass pipeline 1023 can also be divided into three parts to be installed on the shell 101 respectively, and then the medium inlet pipeline 1021 and the medium outlet pipeline 1022 are selectively connected to or disconnected from each other through the first bypass pipeline 1023. Those skilled in the art can make a choice according to actual needs, and the present application does not make any specific restrictions here.

[0061] It should be noted that, in the embodiment of the present application, the medium inlet pipeline 1021, the medium outlet pipeline 1022 and the first bypass pipeline 1023 are all arranged in the same plane, but are not strictly arranged in the same plane, and can be basically arranged in the same plane.

[0062] In one embodiment, the oil cooler 1 further includes a first valve 103, and the first valve 103 is provided at one end of the first bypass line 1023 and / or the other end of the first bypass line 1023, and the first valve 103 is used to selectively connect or disconnect the medium inlet line 1021 and the medium outlet line 1022 to each other through the first bypass line 1023.

[0063] Specifically, Figure 1 and Figure 2 As shown, in the embodiment of the present application, the first valve 103 is provided at one end of the first bypass line 1023 and / or the other end of the first bypass line 1023, that is, by opening or closing the first valve 103, a part of the cooling medium flowing to the cooling part 1011 is diverted to the first bypass line 1023, so that the first bypass line 1023 partially bypasses the cooling part 1011, thereby effectively improving the control efficiency of the oil temperature in the oil part 1012.

[0064] Among them, in the embodiment of the present application, the first valve 103 can be set only at one end of the first bypass line 1023, or the first valve 103 can be set only at the other end of the first bypass line 1023, or the first valve 103 can be set at one end of the first bypass line 1023 and the other end of the first bypass line 1023 at the same time. Those skilled in the art can make a selection according to actual needs, and the present application does not make any specific restrictions here.

[0065] In addition, the first valve 103 in the embodiment of the present application can be any one of a ball valve, a plug valve, a butterfly valve, a gate valve, a stop valve, a needle valve, a solenoid valve, an angle seat valve, a pneumatic switch valve or an electric switch valve; technical personnel in this field can choose according to actual needs, and the present application does not make any specific restrictions here.

[0066] In one embodiment, the medium inlet pipeline 1021 selectively connects one end of the first bypass pipeline 1023 and the cooling portion 1011 , and the medium outlet pipeline 1022 connects the other end of the first bypass pipeline 1023 .

[0067] Specifically, when the temperature of the oil in the oil section 1012 is low, the embodiment of the present application can connect the medium inlet pipeline 1021 with the first bypass pipeline 1023 to achieve a complete bypass of the cooling section 1011, that is, by diverting the cooling medium flowing to the cooling section 1011 to the first bypass pipeline 1023, the temperature of the oil in the oil section 1012 can be controlled.

[0068] When the oil temperature in the oil portion 1012 meets the requirement, the medium inlet pipeline 1021 is connected to the cooling portion 1011 .

[0069] In one embodiment, the oil cooler 1 also includes a second valve, which includes a first connection port, a second connection port and a third connection port, the first connection port is connected to the medium inlet pipeline 1021, the second connection port is connected to the cooling part 1011, and the third connection port is connected to the first bypass pipeline 1023; the second valve has a first state and a second state; when the second valve is in the first state, the first connection port is connected to the second connection port, and the first connection port is disconnected from the third connection port; when the second valve is in the second state, the first connection port is connected to the third connection port, and the first connection port is disconnected from the second connection port.

[0070] Specifically, the embodiment of the present application sets the second valve so that the second valve can control the flow direction of the cooling medium, so that the oil cooler 1 has a cooling state in which the cooling medium flows to the cooling part 1011 and a heating state in which the cooling medium flows to the first bypass line 1023.

[0071] For example, when the temperature of the oil portion 1012 of the oil cooler 1 is too low, the embodiment of the present application can control the second valve to be in the second state in which the first connecting port is connected to the third connecting port, so that the cooling medium flows to the first bypass pipeline 1023 without performing heat exchange with the oil in the cooling portion 1011 of the oil cooler 1, so that the oil in the oil portion 1012 enters the oil circulation system, and the working heat of the working parts in the system is transferred to the oil, so that the oil temperature can be quickly increased; when the temperature of the oil portion 1012 of the oil cooler 1 is too high, the embodiment of the present application can control the second valve to be in the first state in which the first connecting port is connected to the second connecting port, so that the cooling medium flows to the cooling portion 1011, performs heat exchange with the oil in the cooling portion 1011 of the oil cooler 1, and effectively realizes the cooling of the oil in the oil portion 1012.

[0072] In addition, the second valve in the embodiment of the present application can be any one of a straight-through three-way valve, a T-type three-way valve, an L-type three-way valve, a regulating three-way valve, a cut-off three-way valve, a mixed three-way valve or an automatic three-way valve. Technical personnel in this field can choose according to actual needs, and the present application does not make any specific restrictions here.

[0073] In one embodiment, the intersection of the medium inlet pipeline 1021 and the first bypass pipeline 1023 forms a first cavity, the first cavity has a first opening, the second valve is passed through the first opening and installed in the first cavity, and the first opening faces away from the first bypass pipeline 1023.

[0074] Specifically, the embodiment of the present application effectively simplifies the difficulty of installing the second valve by setting the first cavity at the intersection of the medium inlet pipeline 1021 and the first bypass pipeline 1023, so that the second valve can more conveniently control the connection and disconnection between the first connection port and the second connection port, and the first connection port and the third connection port.

[0075] In one embodiment, the medium outlet pipeline 1022 selectively connects one end of the first bypass pipeline 1023 and the cooling unit 1011 , and the medium inlet pipeline 1021 connects the other end of the first bypass pipeline 1023 .

[0076] Specifically, when the temperature of the oil in the oil section 1012 is low, the embodiment of the present application can connect the medium outlet pipeline 1022 with the first bypass pipeline 1023 to achieve a complete bypass of the cooling section 1011, that is, by diverting the cooling medium flowing to the cooling section 1011 to the first bypass pipeline 1023, the temperature of the oil in the oil section 1012 can be controlled.

[0077] When the oil temperature in the oil portion 1012 meets the requirement, the medium outlet pipeline 1022 is connected to the cooling portion 1011 .

[0078] In one embodiment, the oil cooler 1 also includes a third valve, the third valve includes a fourth connection port, a fifth connection port and a sixth connection port, the fourth connection port is connected to the medium outlet pipeline 1022, the fifth connection port is connected to the cooling part 1011, and the sixth connection port is connected to the first bypass pipeline 1023; the third valve has a third state and a fourth state; when the third valve is in the third state, the fourth connection port is connected to the fifth connection port, and the fourth connection port is disconnected from the sixth connection port; when the third valve is in the fourth state, the fourth connection port is connected to the sixth connection port, and the fourth connection port is disconnected from the fifth connection port.

[0079] Specifically, the embodiment of the present application sets the third valve so that the third valve can control the flow direction of the cooling medium, so that the oil cooler 1 has a cooling state in which the cooling medium flows to the cooling part 1011 and a heating state in which the cooling medium flows to the first bypass line 1023.

[0080] For example, when the temperature of the oil portion 1012 of the oil cooler 1 is too low, the embodiment of the present application can control the fourth valve to be in the fourth state in which the fourth connecting port is connected to the sixth connecting port, so that the cooling medium flows to the first bypass pipeline 1023 without performing heat exchange with the oil in the cooling portion 1011 of the oil cooler 1, so that the oil in the oil portion 1012 enters the oil circulation system, and the working heat of the working parts in the system is transferred to the oil, so that the oil temperature can be quickly increased; when the temperature of the oil portion 1012 of the oil cooler 1 is too high, the embodiment of the present application can control the third valve to be in the third state in which the fourth connecting port is connected to the fifth connecting port, so that the cooling medium flows to the cooling portion 1011, performs heat exchange with the oil in the cooling portion 1011 of the oil cooler 1, and thereby effectively realizes the cooling of the oil in the oil portion 1012.

[0081] In addition, the third valve described in the embodiment of the present application can be any one of a straight-through three-way valve, a T-type three-way valve, an L-type three-way valve, a regulating three-way valve, a cut-off three-way valve, a mixed three-way valve or an automatic three-way valve. Technical personnel in this field can choose according to actual needs, and this application does not make any specific restrictions here.

[0082] In addition, the embodiment of the present application may also simultaneously set a second valve and a third valve in the oil cooler 1 to further improve the cooling stability and cooling reliability of the oil cooler 1 .

[0083] In one embodiment, the intersection of the medium outlet pipeline 1022 and the first bypass pipeline 1023 forms a second cavity, the second cavity has a second opening, the third valve is passed through the second opening and installed in the second cavity, and the second opening faces away from the first bypass pipeline 1023.

[0084] Specifically, the embodiment of the present application effectively simplifies the difficulty of installing the third valve by setting the second cavity at the intersection of the medium outlet pipeline 1022 and the first bypass pipeline 1023, so that the third valve can more conveniently control the connection and disconnection between the fourth connection port and the sixth connection port, and between the fourth connection port and the fifth connection port.

[0085] In one embodiment, the oil cooler 1 further includes an oil inlet pipeline 104 and an oil outlet pipeline 105 , and both the oil inlet pipeline 104 and the oil outlet pipeline 105 are in communication with the oil liquid portion 1012 .

[0086] Specifically, Figure 2 and Figure 3As shown, the shell 101 of the oil cooler 1 of the embodiment of the present application has a second surface, and the second surface and the first surface are two opposite sides of the shell 101. The oil inlet pipeline 104 and the oil outlet pipeline 105 are arranged on the second surface, and the oil inlet pipeline 104 and the oil outlet pipeline 105 are both connected with the oil liquid part 1012, so that the lubricating oil can flow from the oil inlet pipeline 104 into the oil liquid part 1012, and after being cooled by heat exchange with the cooling medium in the oil liquid part 1012 as needed, it can also flow out from the oil outlet pipeline 105. The lubricating oil that flows out can enter the inside of the reduction box to lubricate and cool the various components in the reduction box, and the hot oil after lubrication and cooling can enter the oil liquid part 1012 again through the oil inlet pipeline 104, thereby realizing the circulation of the lubricating oil.

[0087] The second surface has a third end and a fourth end extending along the length direction of the housing 101, the oil inlet pipeline 104 is arranged at the third end, and the oil inlet pipeline 104 is perpendicular to the third end; the oil outlet pipeline 105 is arranged at the fourth end, and the oil outlet pipeline 105 is perpendicular to the fourth end. The oil inlet pipeline 104 is arranged in parallel with the oil outlet pipeline 105.

[0088] Thus, since the oil inlet pipeline 104 and the oil outlet pipeline 105 are both connected to the oil portion 1012, and the oil inlet pipeline 104 and the oil outlet pipeline 105 are arranged in parallel, the oil inlet pipeline 104, the oil outlet pipeline 105 and the oil portion 1012 can form two right angles. Further, when the lubricating oil is injected into the oil portion 1012 through the oil inlet pipeline 104, the lubricating oil only needs to pass through two right angles to achieve circulating lubrication of each component in the reduction gearbox, which effectively reduces the influence of multiple pipelines on the flow resistance of the lubricating oil and significantly improves the lubrication efficiency of the lubricating oil.

[0089] In addition, the oil inlet pipeline 104 described in the embodiment of the present application can also be set at the fourth end, and the oil outlet pipeline 105 can also be set at the third end. Of course, the oil inlet pipeline 104 and the oil outlet pipeline 105 can also be set at any position of the second surface. Those skilled in the art can make a choice according to actual needs, and the present application does not make any specific restrictions here.

[0090] Since the lubricating oil only circulates inside the reduction gearbox, in a possible implementation, the oil inlet pipeline 104 and the oil outlet pipeline 105 can be directly arranged on the reduction gearbox body, that is, the oil inlet pipeline 104 and the oil outlet pipeline 105 can be directly processed on the reduction gearbox body, thereby facilitating the circulation of the lubricating oil and reducing the risk of oil leakage caused by external pipelines.

[0091] In one embodiment, the cooling portion 1011 includes multiple cooling layers 10111 , and the oil portion 1012 includes multiple oil layers 10121 , and the multiple cooling layers 10111 and the multiple oil layers 10121 are arranged at intervals.

[0092] Specifically, Figures 1 to 3 As shown, the cooling part 1011 in the embodiment of the present application includes a cooling layer 10111, and the oil part 1012 includes an oil layer 10121. The cooling layer 10111 and the oil layer 10121 are stacked to significantly improve the cooling effect of the cooling layer 10111 on the oil layer 10121.

[0093] Among them, the cooling part 1011 includes multiple cooling layers 10111, and the oil part 1012 includes multiple oil layers 10121. The multiple cooling layers 10111 and the multiple oil layers 10121 are arranged at intervals, thereby effectively improving the cooling efficiency of the cooling layer 10111 on the oil layer 10121 and significantly enhancing the performance of the oil cooler.

[0094] According to another embodiment of the present application, a reduction gearbox is provided, which includes the oil cooler 1 as described in the embodiment of the present application.

[0095] Specifically, Figure 4 As shown, the reduction gearbox in the embodiment of the present application effectively controls the oil temperature in the reduction gearbox through the provision of the oil cooler 1, thereby significantly improving the use effect of the reduction gearbox.

[0096] In one embodiment, the oil cooler 1 is installed outside the reduction gearbox.

[0097] Specifically, Figure 4 As shown, the reduction gearbox described in the embodiment of the present application includes a reduction gearbox housing 2, and the oil cooler 1 can be installed on the outside of the reduction gearbox housing 2, so that when arranging, repairing and replacing the oil cooler 1, the difficulty of arranging the oil cooler 1 can be effectively simplified, and the maintenance efficiency and replacement efficiency of the first pipeline component 102 can be improved.

[0098] In addition, since the first pipeline component 102 can also be arranged outside the shell 101, by installing the oil cooler 1 on the outside of the housing 2 of the reduction gearbox, the difficulty of arranging the first pipeline component 102 can be further simplified, and the maintenance efficiency and replacement efficiency of the first pipeline component 102 can be improved.

[0099] In one embodiment, the reduction gearbox further includes a sensor for detecting the temperature of the oil in the reduction gearbox, and the medium inlet pipeline 1021 and the medium outlet pipeline 1022 can be selectively connected to or disconnected from each other according to the temperature of the oil.

[0100] Specifically, Figure 4 As shown, the reduction gearbox in the embodiment of the present application is provided with a first sensor 201 and a second sensor 202 , wherein the first sensor 201 is used to connect to the oil inlet pipeline 104 of the oil cooler 1 , and the second sensor 202 is used to connect to the oil outlet pipeline 105 of the oil cooler 1 .

[0101] Thus, the temperature of the lubricating oil flowing into the oil cooler 1 is detected in real time by the first sensor 201, and the temperature of the lubricating oil flowing out of the oil cooler 1 is detected in real time by the second sensor 202. The control system of the reduction gearbox or the vehicle collects and transmits instructions to the on / off state or the state of the first valve 103, the second valve or the third valve, and then controls the flow of the cooling medium flowing into the oil cooler to achieve control of the oil temperature in the oil part 1012, thereby significantly enhancing the performance of the reduction gearbox.

[0102] In addition, in the embodiment of the present application, only one sensor may be provided in the reduction box to monitor the temperature of the oil in the oil section 1012 in real time. Those skilled in the art may make a choice according to actual needs, and the present application does not make any specific restrictions here.

[0103] According to another embodiment of the present application, an electric assembly is provided, which includes the reduction gearbox described in the embodiment of the present application.

[0104] In a possible embodiment of the present application, the electric assembly is also provided with a speed sensor, and the control system of the reduction box or the vehicle can combine the oil temperature detected by the temperature sensor and the speed measured by the speed sensor and other operating parameters to jointly control the on / off state of the first valve 103 or the second valve or the third valve to ensure that the oil in the electric assembly is in the most suitable working temperature range, so that the electric assembly operates in the highest efficiency range.

[0105] According to another embodiment of the present application, a vehicle is provided. The vehicle includes the electric assembly described in the embodiment of the present application.

[0106] The above embodiments focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0107] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. An oil cooler, characterized in that: include: A housing (101), wherein a cooling portion (1011) and an oil portion (1012) are arranged in the housing (101), and the cooling portion (1011) is used to perform heat exchange with the oil portion (1012); A first pipeline component (102), the first pipeline component (102) comprising a medium inlet pipeline (1021), a medium outlet pipeline (1022) and a first bypass pipeline (1023), the medium inlet pipeline (1021) and the medium outlet pipeline (1022) being arranged in parallel, and the first bypass pipeline (1023) being perpendicular to the medium inlet pipeline (1021) and the medium outlet pipeline (1022); The medium inlet pipeline (1021) and the medium outlet pipeline (1022) are both connected to the cooling part (1011), and the medium inlet pipeline (1021) and the medium outlet pipeline (1022) are selectively connected to or disconnected from each other through the first bypass pipeline (1023).

2. The oil cooler according to claim 1, characterized in that: The first pipeline component (102) is arranged outside the housing (101).

3. The oil cooler according to claim 1, characterized in that: The medium inlet pipeline (1021), the medium outlet pipeline (1022) and the first bypass pipeline (1023) are all arranged in the same plane.

4. The oil cooler according to claim 1, characterized in that: The invention also includes a first valve (103), wherein one end of the first bypass pipeline (1023) and / or the other end of the first bypass pipeline (1023) is provided with the first valve (103), and the first valve (103) is used to selectively connect or disconnect the medium inlet pipeline (1021) and the medium outlet pipeline (1022) to each other through the first bypass pipeline (1023).

5. The oil cooler according to claim 1, characterized in that: The medium inlet pipeline (1021) selectively connects one end of the first bypass pipeline (1023) and the cooling part (1011), and the medium outlet pipeline (1022) connects the other end of the first bypass pipeline (1023).

6. The oil cooler according to claim 5, characterized in that: It also includes a second valve, the second valve including a first connection port, a second connection port and a third connection port, the first connection port is connected to the medium inlet pipeline (1021), the second connection port is connected to the cooling part (1011), and the third connection port is connected to the first bypass pipeline (1023); The second valve has a first state and a second state; When the second valve is in the first state, the first connection port is connected to the second connection port, and the first connection port is disconnected from the third connection port; When the second valve is in the second state, the first connection port is communicated with the third connection port, and the first connection port is disconnected from the second connection port.

7. The oil cooler according to claim 6, characterized in that: A first cavity is formed at the intersection of the medium inlet pipeline (1021) and the first bypass pipeline (1023), the first cavity having a first opening, the second valve being passed through the first opening and installed in the first cavity, the first opening being oriented in a direction away from the first bypass pipeline (1023).

8. The oil cooler according to claim 1, characterized in that: The medium outlet pipeline (1022) selectively connects one end of the first bypass pipeline (1023) and the cooling part (1011), and the medium inlet pipeline (1021) connects the other end of the first bypass pipeline (1023).

9. The oil cooler according to claim 8, characterized in that: It also includes a third valve, the third valve including a fourth connection port, a fifth connection port and a sixth connection port, the fourth connection port being in communication with the medium outlet pipeline (1022), the fifth connection port being in communication with the cooling part (1011), and the sixth connection port being in communication with the first bypass pipeline (1023); The third valve has a third state and a fourth state; When the third valve is in the third state, the fourth connection port is connected to the fifth connection port, and the fourth connection port is disconnected from the sixth connection port; When the third valve is in the fourth state, the fourth connection port is communicated with the sixth connection port, and the fourth connection port is disconnected from the fifth connection port.

10. The oil cooler according to claim 9, characterized in that: A second cavity is formed at the intersection of the medium outlet pipeline (1022) and the first bypass pipeline (1023), and the second cavity has a second opening. The third valve is inserted through the second opening and installed in the second cavity, and the second opening faces a direction away from the first bypass pipeline (1023).

11. A reduction gearbox, characterized in that: It comprises the oil cooler (1) according to any one of claims 1 to 10.

12. The reduction gearbox according to claim 11, characterized in that: The oil cooler (1) is installed outside the reduction box.

13. The reduction gearbox according to claim 11, characterized in that: The reduction gearbox further comprises a sensor for detecting the temperature of the oil in the reduction gearbox, and the medium inlet pipeline (1021) and the medium outlet pipeline (1022) can be selectively connected to or disconnected from each other according to the temperature of the oil.

14. An electric assembly, characterized in that: Comprising a reduction gearbox as described in any one of claims 11-13.

15. A vehicle, characterized in that: Comprising the electric assembly as claimed in claim 14.

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