Oil cooler structure and electric drive thermal management system

Abstract

The embodiment of the utility model provides an oil cooler structure and an electric drive thermal management system, the oil cooler structure comprises an oil cooler part, the oil cooler part comprises an oil channel, a water channel, an oil inlet channel and an oil outlet channel, the oil channel is configured to be used for containing lubricating oil, the water channel is configured to be used for containing cooling liquid, and the cooling liquid is configured to exchange heat with the lubricating oil; the oil inlet channel and the oil outlet channel are communicated with the oil channel; the adjusting part comprises an adjusting assembly and a sealing piece, the adjusting assembly is connected with the sealing piece to drive the sealing piece to move, and the sealing piece is arranged in the oil inlet channel and / or the oil outlet channel and used for adjusting the oil amount of the lubricating oil entering the oil outlet channel. The oil channel communicates with the oil inlet channel and the oil outlet channel, and the adjusting assembly is connected with the sealing piece to drive the sealing piece to move in the first direction in the oil inlet channel and / or the oil outlet channel, so that on the premise that heat exchange is conducted on the same cooling liquid, the oil outlet amount of the oil channel from the oil outlet channel is adjusted, the heat dissipation amount of the oil cooler structure is changed, and the service life of the oil cooler structure is prolonged. And finally, the electric driving efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of oil coolers, and in particular to an oil cooler structure and an electric drive thermal management system. Background Art

[0002] Currently, oil-cooled pure electric drives mainly use oil coolers to remove the heat generated by the motor and shaft gears when the drive is working, in order to regulate the temperature inside the drive. Oil is usually used inside the oil-cooled electric drive to cool the motor and shaft gears. The hot oil then passes through the hot side of the oil cooler and exchanges heat with the cooling water on the cold side. At the hot side outlet of the oil cooler, the oil temperature drops, and the water temperature at the water side outlet rises, and the heat is transferred through the oil cooler.

[0003] In related technologies, in addition to ensuring the oil cooler's heat dissipation function, real-time adjustment of the oil cooler based on operating conditions is also a key issue that cannot be ignored. Therefore, how to achieve real-time adjustment of the oil cooler's heat dissipation based on operating conditions is a technical problem that needs to be solved in oil cooler technology. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide an oil cooler structure and an electric drive thermal management system that can increase or decrease heat dissipation according to actual working conditions, thereby improving electric drive efficiency.

[0005] In a first aspect, an embodiment of the present application provides an oil cooler structure, comprising: an oil cooler part, comprising an oil channel, a water channel, an oil inlet channel and an oil outlet channel, the oil channel being configured to accommodate lubricating oil, the water channel being configured to accommodate coolant, the coolant being configured to exchange heat with the lubricating oil, the oil inlet channel and the oil outlet channel being configured to be distributed along a first direction, and both being communicated with the oil channel; an adjustment part, comprising an adjustment component and a seal, the adjustment component being connected to the seal to drive the seal to move along the first direction, the seal being configured in the oil inlet channel and / or the oil outlet channel to adjust the amount of lubricating oil entering the oil outlet channel.

[0006] During the above implementation process, the oil channel is respectively connected to the oil inlet channel and the oil outlet channel, and the seal is connected to the adjustment component to drive the seal to move in the oil inlet channel and / or the oil outlet channel along the first direction, thereby adjusting the oil output from the oil outlet channel under the premise of heat exchange with the same coolant, changing the heat dissipation of the oil cooler structure, and ultimately improving the efficiency of the electric drive.

[0007] In some embodiments, the adjustment assembly includes a driving mechanism, an elastic member and a push rod, the driving mechanism is connected to the push rod, the elastic member is sleeved on the push rod, and one end of the elastic member is in contact with the driving mechanism, and the sealing member is sleeved on the side of the push rod facing away from the driving mechanism.

[0008] In the above implementation process, the driving mechanism is connected to the push rod, and the elastic member is sleeved on the push rod, so that when the driving mechanism drives the push rod to move, the elastic member can be compressed or released, and finally the movement of the seal is realized through the push rod. The heat dissipation can be increased or decreased according to the actual working conditions, thereby improving the efficiency of the electric drive.

[0009] In some embodiments, the driving mechanism includes a stationary iron, a moving iron, and a coil. The coil is sleeved on the outer edge of the stationary iron, and the moving iron is connected to the push rod.

[0010] In the above implementation process, a coil is provided on the static iron, and the moving iron is fixed to the push rod. When the coil is not energized, the push rod does not move, and the seal is in the initial position. At this time, the lubricating oil in the oil channel above the seal does not flow, and thus does not participate in the heat exchange of the coolant in the water channel. When a greater heat dissipation demand is needed, the coil is energized, and the static iron generates a magnetic attraction, so that the moving iron and the magnetic static iron are attracted to each other, driving the push rod to move upward, and then the seal is lifted to the specified position. At this time, the lubricating oil in the oil channel between the specified position and the initial position also participates in the heat exchange with the coolant, thereby changing the heat dissipation of the oil cooler structure. When the heat dissipation demand decreases, the coil is de-energized, and under the action of the elastic part, the moving iron returns to the initial position. The whole process can increase or decrease the heat dissipation according to the actual working conditions, and ultimately improve the efficiency of the electric drive.

[0011] In some embodiments, the adjustment portion further includes an adjustment housing connected to the oil cooler portion, the adjustment housing being configured to accommodate the drive mechanism, and the push rod extends from a side away from the seal to an inner cavity of the adjustment housing.

[0012] In the above implementation process, after adjusting the shell connected to the oil cooler part, it can be used to accommodate the drive mechanism, so that without taking up too much space in the oil cooler part, the heat dissipation can be increased or decreased according to the actual working conditions through the cooperation of the drive mechanism and the seal, thereby ultimately improving the efficiency of the electric drive.

[0013] In some embodiments, the adjustment housing includes a housing body and a bottom cover, the bottom cover is connected to the housing body, and the elastic member is disposed at one end of the bottom cover.

[0014] In the above-mentioned implementation process, after the shell body is connected to the bottom cover, it can enclose and form a accommodating cavity for accommodating the driving mechanism, and one end of the bottom cover is used to abut against the elastic part, which can facilitate the reset of the seal through the elastic part in the case of power failure, thereby adjusting the heat dissipation of the oil cooler structure according to the actual working conditions, thereby improving the efficiency of the electric drive.

[0015] In some embodiments, the oil passage includes a plurality of sub-oil passages, the plurality of sub-oil passages are spaced apart along the first direction, and each of the sub-oil passages is in communication with the oil inlet passage and the oil outlet passage.

[0016] In the above implementation process, by setting the oil channel into several sub-oil channels, each sub-oil channel can be used to accommodate lubricating oil, thereby increasing the heat exchange area, improving the heat dissipation performance, and thus improving the efficiency of the electric drive.

[0017] In some embodiments, the water channel includes a plurality of sub-water channels, and the plurality of sub-water channels are staggered with the oil sub-channels along the first direction. By staggering the sub-water channels with the oil sub-channels, sufficient heat exchange with the lubricating oil can be achieved, thereby increasing the heat exchange area and improving heat dissipation performance.

[0018] In some embodiments, the oil inlet channel is configured with an oil inlet.

[0019] In some embodiments, the oil outlet channel is configured with an oil outlet.

[0020] In a second aspect, the present application also provides an electric drive thermal management system, comprising an oil cooler structure as described in any one of the above items.

[0021] Since the electric drive thermal management system provided in the second aspect includes an oil cooler structure, the electric drive thermal management system has all the technical effects of the oil cooler structure, which will not be described in detail here.

[0022] Other features and advantages of the present disclosure will be set forth in the following description, or some features and advantages may be inferred or unambiguously determined from the description, or may be learned by practicing the above-mentioned technology of the present disclosure.

[0023] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 A schematic diagram of the structure of the oil cooler provided in an embodiment of the present application;

[0026] Reference numerals

[0027] 100. Oil cooler part; 101. Sub-oil circuit; 102. Sub-water circuit; 103. Oil inlet channel; 104. Oil outlet channel; 200. Adjustment part; 201. Stationary iron; 202. Moving iron; 203. Coil; 204. Seal; 205. Elastic part; 206. Push rod; 207. Shell body; 208. Bottom cover. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.

[0029] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0030] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0031] Furthermore, the terms "installed," "disposed," "provided with," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or point connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0032] Furthermore, the terms "first," "second," etc., are primarily used to distinguish between different devices, elements, or components (which may or may not be of the same type and configuration), and are not intended to indicate or imply the relative importance or quantity of the devices, elements, or components indicated. Unless otherwise specified, "plurality" means two or more.

[0033] Example

[0034] During the design process, the inventor discovered that the oil cooler needs to meet the most stringent heat dissipation requirements when it is designed, but in actual use, the maximum heat dissipation requirements may not be used. If it is a traditional oil cooler, the coolant and engine oil are always exchanging heat, resulting in a low oil temperature in the electric drive, high viscosity of the electric drive oil, increased oil churning losses, and reduced electric drive efficiency.

[0035] In view of this, if Figure 1 As shown, in the first aspect, an embodiment of the present application provides an oil cooler structure, including: an oil cooler part 100, including an oil channel, a water channel, an oil inlet channel 103 and an oil outlet channel 104, the oil channel is configured to accommodate lubricating oil, the water channel is configured to accommodate coolant, the coolant is configured to exchange heat with the lubricating oil, the oil inlet channel 103 and the oil outlet channel 104 are both configured to be distributed along a first direction, and both are connected to the oil channel; an adjustment part 200, including an adjustment component and a seal 204, the adjustment component is connected to the seal 204 to drive the seal 204 to move along the first direction, and the seal 204 is configured in the oil inlet channel 103 and / or the oil outlet channel 104 to adjust the amount of lubricating oil entering the oil outlet channel 104.

[0036] Exemplarily, the seal 204 includes but is not limited to a sealing ring. After the adjustment component is connected to the seal 204, the seal 204 can be configured in the oil inlet channel 103 or in the oil outlet channel 104. Of course, there can also be two seals 204, one seal 204 is located in the oil inlet channel 103, and the other seal 204 is located in the oil outlet channel 104, and the two seals 204 can be synchronously adjusted by one adjustment component, or one seal 204 corresponds to one adjustment component, and the seals 204 located in the oil inlet channel 103 and the oil outlet channel 104 respectively work independently.

[0037] It can be understood that the oil inlet channel 103 is used as a channel for the lubricating oil to enter the oil channel, and the oil outlet channel 104 is used as a channel for the lubricating oil to flow out of the oil channel and enter the interior of the electric drive for cooling and lubrication.

[0038] During the above implementation process, the oil channel is respectively connected to the oil inlet channel 103 and the oil outlet channel 104, and the adjustment component connecting the seal 204 is used to drive the seal 204 to move along the first direction in the oil inlet channel 103 and / or the oil outlet channel 104, thereby adjusting the oil output from the oil outlet channel 104 under the premise of heat exchange with the same coolant, changing the heat dissipation of the oil cooler structure, and ultimately improving the efficiency of the electric drive.

[0039] like Figure 1 As shown, the adjustment assembly includes a driving mechanism, an elastic member 205 and a push rod 206. The driving mechanism is connected to the push rod 206. The elastic member 205 is sleeved on the push rod 206, and one end of the elastic member 205 is in contact with the driving mechanism. The sealing member 204 is sleeved on the side of the push rod 206 facing away from the driving mechanism.

[0040] Exemplarily, the elastic member 205 includes but is not limited to a spring, the push rod 206 is configured to be distributed along the first direction, the first direction includes but is not limited to the up and down direction, and the connection method between the driving mechanism and the push rod 206 can be threaded connection, welding, snap connection, etc., as long as the fixing of the driving mechanism and the push rod 206 can be achieved.

[0041] In the above implementation process, the driving mechanism is connected to the push rod 206, and the elastic member 205 is sleeved on the push rod 206, so that when the driving mechanism drives the push rod 206 to move, the elastic member 205 can be compressed or released, and finally the movement of the seal 204 is realized through the push rod 206. The heat dissipation can be increased or decreased according to the actual working conditions, thereby improving the efficiency of the electric drive.

[0042] In some embodiments, the driving mechanism includes a stationary iron 201 , a moving iron 202 and a coil 203 . The coil 203 is sleeved on the outer edge of the stationary iron 201 , and the moving iron 202 is connected to the push rod 206 .

[0043] Exemplarily, the stationary iron 201 is located above the moving iron 202, and the coil 203 is wound around the stationary iron 201 for connecting to an external power supply device, so that when the coil 203 is energized, the stationary iron 201 generates a magnetic attraction to attract the moving iron 202; when the coil 203 is de-energized, the stationary iron 201 loses its magnetic attraction, and the moving iron 202 returns to its original position under the action of gravity.

[0044] In the above implementation process, a coil 203 is provided on the static iron 201, and the moving iron 202 is fixed to the push rod 206. When the coil 203 is not energized, the push rod 206 does not move, and the seal 204 is in the initial position. At this time, the lubricating oil in the oil channel above the seal 204 does not flow, and thus does not participate in the heat exchange of the coolant in the water channel. When a greater heat dissipation demand is needed, the coil 203 is energized, and the static iron 201 generates a magnetic attraction, so that the moving iron 202 is attracted to the magnetic static iron 201, driving the push rod 206 to move upward, and then after the seal 204 is lifted to the specified position, the lubricating oil in the oil channel between the specified position and the initial position also participates in the heat exchange with the coolant, thereby changing the heat dissipation of the oil cooler structure. When the heat dissipation demand decreases, the coil 203 is de-energized, and under the action of the elastic member 205, the moving iron 202 returns to the initial position. The entire process can increase or decrease the heat dissipation according to the actual working conditions, thereby improving the efficiency of the electric drive.

[0045] Please refer to Figure 1 The adjustment part 200 further includes an adjustment shell, which is connected to the oil cooler part 100 and is configured to accommodate the driving mechanism. The push rod 206 extends from the side of the seal 204 to the inner cavity of the adjustment shell.

[0046] Exemplarily, the adjustment shell is fixed to the oil cooler part 100, and its fixing method can be threaded connection, snap connection, etc. The distribution direction of the adjustment shell includes but is not limited to the up and down directions. Preferably, the adjustment shell is arranged at the position of the oil inlet channel 103, and the push rod 206 is correspondingly arranged in the oil inlet channel 103.

[0047] In the above implementation process, after adjusting the shell connected to the oil cooler part 100, it can be used to accommodate the drive mechanism, so that without taking up too much space of the oil cooler part 100, the heat dissipation can be increased or decreased according to the actual working conditions through the cooperation of the drive mechanism and the seal 204, thereby ultimately improving the efficiency of the electric drive.

[0048] In some embodiments, the adjustment shell includes a shell body 207 and a bottom cover 208, the bottom cover 208 is connected to the shell body 207, and the elastic member 205 is configured at one end of the bottom cover 208, that is, the elastic member 205 is located between the moving iron 202 and the bottom cover 208, the bottom cover 208 is fixed to the bottom of the shell body 207, and the side of the bottom cover 208 close to the shell body 207 is configured in a stepped shape, and the bottom cover 208 is clamped to the shell body 207 through the stepped position, and the moving iron 202 is located on the side of the bottom cover 208 away from the sealing member 204.

[0049] In the above-mentioned implementation process, after the shell body 207 is connected to the bottom cover 208, a housing cavity for accommodating the driving mechanism can be enclosed, and one end of the bottom cover 208 is used to abut against the elastic member 205, which can facilitate the reset of the seal 204 through the elastic member 205 in the event of a power outage, thereby adjusting the heat dissipation of the oil cooler structure according to the actual working conditions, thereby improving the efficiency of the electric drive.

[0050] In some embodiments, the oil passage includes several sub-oil passages 101 , the number of the sub-oil passages 101 is not specifically limited, and the sub-oil passages 101 are spaced apart along the first direction, and each of the sub-oil passages 101 is connected to the oil inlet passage 103 and the oil outlet passage 104 .

[0051] In the above implementation process, by setting the oil channel into several sub-oil channels 101, each sub-oil channel 101 can be used to accommodate lubricating oil, thereby increasing the heat exchange area, improving the heat dissipation performance, and thus improving the efficiency of the electric drive.

[0052] In some embodiments, the water channel includes a plurality of sub-water channels 102, the number of which is not specifically limited. The plurality of sub-water channels 102 are staggered along the first direction with the oil sub-channel 101. By staggering the sub-water channels 102 with the oil sub-channel 101, sufficient heat exchange with the lubricating oil is achieved, increasing the heat exchange area and improving heat dissipation performance.

[0053] In some embodiments, an oil inlet is configured at the bottom of the oil inlet channel 103 .

[0054] In some embodiments, an oil outlet is configured at the bottom of the oil outlet channel 104 .

[0055] In a second aspect, the present application also provides an electric drive thermal management system, including the oil cooler structure as described above.

[0056] Since the electric drive thermal management system provided in the second aspect includes an oil cooler structure, the electric drive thermal management system has all the technical effects of the oil cooler structure, which will not be described in detail here.

[0057] In all embodiments of the present application, "big" and "small" are relative, "more" and "less" are relative, and "up" and "down" are relative. The expressions of such relative terms will not be elaborated in the embodiments of the present application.

[0058] It should be understood that the phrases “in this embodiment,” “in an embodiment of the present application,” or “as an optional implementation” mentioned throughout the specification mean that specific features, structures, or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, “in this embodiment,” “in an embodiment of the present application,” or “as an optional implementation” appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in one or more embodiments in any suitable manner. Those skilled in the art should also be aware that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily required for the present application.

[0059] In the various embodiments of the present application, it should be understood that the size of the serial numbers of the above-mentioned processes does not necessarily mean the order of execution. The order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0060] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. An oil cooler structure, characterized in that: include: an oil cooler portion, comprising an oil channel, a water channel, an oil inlet channel, and an oil outlet channel, wherein the oil channel is configured to contain lubricating oil, the water channel is configured to contain coolant, the coolant is configured to exchange heat with the lubricating oil, and the oil inlet channel and the oil outlet channel are both configured to be distributed along a first direction and both communicate with the oil channel; The adjustment part includes an adjustment component and a seal. The adjustment component is connected to the seal to drive the seal to move along the first direction. The seal is configured in the oil inlet channel and / or the oil outlet channel to adjust the amount of lubricating oil entering the oil outlet channel.

2. The oil cooler structure according to claim 1, characterized in that: The adjustment assembly includes a driving mechanism, an elastic member and a push rod. The driving mechanism is connected to the push rod. The elastic member is sleeved on the push rod, and one end of the elastic member abuts against the driving mechanism. The sealing member is sleeved on the side of the push rod away from the driving mechanism.

3. The oil cooler structure according to claim 2, characterized in that: The driving mechanism includes a static iron, a moving iron and a coil. The coil is sleeved on the outer edge of the static iron, and the moving iron is connected to the push rod.

4. The oil cooler structure according to claim 2 or 3, characterized in that: The adjustment part further includes an adjustment shell connected to the oil cooler part. The adjustment shell is configured to accommodate the driving mechanism. The push rod extends from a side of the seal to an inner cavity of the adjustment shell.

5. The oil cooler structure according to claim 4, characterized in that: The adjustment housing includes a housing body and a bottom cover. The bottom cover is connected to the housing body. One end of the bottom cover is provided with the elastic member.

6. The oil cooler structure according to claim 1, characterized in that: The oil passage includes a plurality of sub-oil passages, which are spaced apart along the first direction, and each of the sub-oil passages is communicated with the oil inlet passage and the oil outlet passage.

7. The oil cooler structure according to claim 6, characterized in that: The water channel includes a plurality of sub-water channels, and the plurality of sub-water channels are staggered with the sub-oil channels along the first direction.

8. The oil cooler structure according to claim 1, characterized in that: The oil inlet passage is provided with an oil inlet.

9. The oil cooler structure according to claim 1, characterized in that: The oil outlet channel is provided with an oil outlet.

10. An electric drive thermal management system, characterized in that: The oil cooler comprises the oil cooler structure according to any one of claims 1 to 9.

Images