Integrated cooling and lubrication modules and pure electric vehicles

Abstract

The present application relates to an integrated cooling and lubrication module and a pure electric vehicle, and belongs to the field of automobile cooling and lubrication technology. The integrated cooling and lubrication module includes a module body and a cooler. The module body has a body oil inlet, a body oil outlet, and a plurality of cavities connected in sequence. The cooler is located in the cavity and is connected to the module body. One end of the body oil inlet is connected to the oil outlet of the actuator, and one end of the body oil outlet is connected to the oil inlet of the actuator. By adopting the present application, when the housing of the actuator is deformed by external force, the oil channel will not be blocked, and the housing of the actuator does not need to be replaced. Lubricating oil can still be delivered to the actuator, which can reduce costs.

Description

Technical Field

[0001] The present application relates to the field of automobile cooling and lubrication technology, and in particular to an integrated cooling and lubrication module and a pure electric vehicle. Background Art

[0002] Nowadays, new energy vehicles are gradually becoming the mainstream choice of automobiles, among which pure electric vehicles have gradually gained market favor with their superior energy-saving and emission-reduction performance.

[0003] During the driving process of a pure electric vehicle, it is necessary to input the cooled lubricating oil into the motor and other actuators through the cooling and lubrication module to cool and lubricate the motor and other actuators to ensure the operating stability of these actuators. The cooling and lubrication module usually includes a filter and a cooler.

[0004] At present, most automotive cooling and lubrication modules are independently arranged on the housing of the actuator, and it is necessary to set an oil pipeline connecting the filter and the cooler on the outer wall of the actuator housing. When the housing is deformed by external forces (such as collision), the oil pipeline may be blocked. It is difficult to restore the deformation of the oil pipeline through sheet metal repair, so the only option is to replace the actuator housing, which is costly. Summary of the invention

[0005] The embodiment of the present application provides an integrated cooling and lubrication module and a pure electric vehicle, which can solve the technical problems existing in the related technologies. The technical solution is as follows:

[0006] In a first aspect, an embodiment of the present application provides an integrated cooling and lubrication module, which is applied to a pure electric vehicle, and includes a module body, and a filter, a cooler, an electronic oil pump, a pressure sensor, a first temperature sensor, and a control unit fixedly connected to the module body;

[0007] The module body has a body oil inlet, a body oil outlet, a first cavity, a second cavity, a third cavity, a fourth cavity, a fifth cavity, a sixth cavity and a seventh cavity, one end of the body oil inlet is connected to the oil outlet of the actuator, one end of the body oil outlet is connected to the oil inlet of the actuator, the other end of the body oil inlet, the first cavity, the second cavity, the third cavity, the fourth cavity, the fifth cavity, the sixth cavity, the seventh cavity and the other end of the body oil outlet are connected in sequence, wherein the actuator is the reducer and the motor of the pure electric vehicle;

[0008] The electronic oil pump is located in the second cavity and connected to the module body, the filter is located in the fourth cavity and connected to the module body, and the cooler is located in the sixth cavity and connected to the module body;

[0009] The pressure sensor is located in the third cavity and connected to the module body, and the pressure sensor is used to detect the pressure value of the lubricating oil in the third cavity;

[0010] The first temperature sensor is located in the seventh cavity and connected to the module body, and the first temperature sensor is used to detect a first temperature value of the lubricating oil in the seventh cavity;

[0011] The control unit is electrically connected to the cooler, the electronic oil pump, the pressure sensor and the first temperature sensor, and the control unit is used for:

[0012] Controlling the output power of the electronic oil pump based on the pressure value detected by the pressure sensor;

[0013] Based on a first temperature value detected by the first temperature sensor, a cooling rate of the cooler is controlled.

[0014] In a possible implementation, the module body further has a first channel, a second channel, a third channel, a fourth channel, a fifth channel and a sixth channel;

[0015] The first channel connects the first cavity and the second cavity, the second channel connects the second cavity and the third cavity, the third channel connects the third cavity and the fourth cavity, the fourth channel connects the fourth cavity and the fifth cavity, the fifth channel connects the fifth cavity and the sixth cavity, and the sixth channel connects the sixth cavity and the seventh cavity.

[0016] In a possible implementation, the first channel, the second channel, the third channel, the fourth channel, the fifth channel and the sixth channel are all circular channels.

[0017] In a possible implementation, the oil inlet of the electronic oil pump is located on the extension line of the first channel axis, the oil inlet of the filter is located on the extension line of the third channel axis, and the oil inlet of the cooler is located on the extension line of the fifth channel axis.

[0018] In a possible implementation, the first end of the filter, the first end of the cooler, and the first end of the electronic oil pump all extend out of the first surface of the module body.

[0019] In one possible implementation, the first end of the filter, the first end of the cooler and the first end of the electronic oil pump are all flush with the first surface of the module body; the pressure sensor, the first temperature sensor and the control unit are all located inside the module body.

[0020] In a possible implementation, the integrated cooling and lubrication module further includes a second temperature sensor, which is located in the fifth cavity and connected to the module body, and is used to detect a second temperature value of the lubricating oil in the fifth cavity;

[0021] The control unit is used to control a cooling rate of the cooler based on the first temperature value detected by the first temperature sensor and the second temperature value detected by the second temperature sensor.

[0022] In a possible implementation, the module body is a component made by pressure injection molding.

[0023] In a possible implementation, the material of the module body is polyhexamethylene adipamide.

[0024] On the other hand, an embodiment of the present application provides a pure electric vehicle, which includes the integrated cooling and lubrication module described in the first aspect and possible implementations thereof.

[0025] The technical solution provided by the embodiments of the present application includes at least the following beneficial effects:

[0026] The embodiment of the present application provides an integrated cooling and lubrication module, which includes a module body and a cooler. The module body has a body oil inlet, a body oil outlet, and a plurality of cavities connected in sequence. The cooler is located in the cavity and is connected to the module body. One end of the body oil inlet is connected to the oil outlet of the actuator, and one end of the body oil outlet is connected to the oil inlet of the actuator. In this way, it is not necessary to set an oil channel pipeline for connecting the filter and the cooler on the housing of the actuator, and lubricating oil can be delivered to the actuator, which reduces the design cost of the actuator housing. In addition, the module body is a simple housing, and its cost is much lower than that of the actuator housing. When the module body is deformed by external force, the module body can be directly replaced, which reduces the maintenance cost of the integrated cooling and lubrication module.

[0027] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 is a structural schematic diagram of an integrated cooling and lubrication module shown in an embodiment of the present application;

[0030] Figure 2 is a structural schematic diagram of an integrated cooling and lubrication module shown in an embodiment of the present application;

[0031] Figure 3 is a structural schematic diagram of an integrated cooling and lubrication module shown in an embodiment of the present application;

[0032] Figure 4 is a schematic structural diagram of a cooler shown in an embodiment of the present application;

[0033] Figure 5 is a structural schematic diagram of an integrated cooling and lubrication module shown in an embodiment of the present application;

[0034] Figure 6 is a structural schematic diagram of an integrated cooling and lubrication module shown in an embodiment of the present application;

[0035] Figure 7 is a structural schematic diagram of an integrated cooling and lubrication module shown in an embodiment of the present application;

[0036] Figure 8 is a structural schematic diagram of an integrated cooling and lubrication module shown in an embodiment of the present application;

[0037] Fig. 9 It is a structural schematic diagram of an integrated cooling and lubrication module shown in an embodiment of the present application.

[0038] Legend

[0039] 1. Module body;

[0040] 1a, first cavity; 1b, second cavity; 1c, third cavity; 1d, fourth cavity; 1e, fifth cavity; 1f, sixth cavity; 1g, seventh cavity; 1m, main body oil inlet; 1n, main body oil outlet;

[0041] 1o, first channel; 1p, second channel; 1q, third channel; 1r, fourth channel; 1s, fifth channel; 1t, sixth channel; 1z, first surface; 1x, second surface; 1y, third surface;

[0042] 2. Filter; 2a. First end of the filter; 2i. Oil inlet of the filter;

[0043] 3. Cooler; 3a. First end of the cooler; 3i. Oil inlet of the cooler;

[0044] 4. Electronic oil pump; 4a. First end of the electronic oil pump; 4i. Oil inlet of the electronic oil pump;

[0045] 5. Pressure sensor;

[0046] 6. A first temperature sensor;

[0047] 7. Control unit;

[0048] 8. A second temperature sensor;

[0049] 9. Support ring. DETAILED DESCRIPTION

[0050] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0051] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons with ordinary skills in the field to which the present disclosure belongs. The words "first", "second", "third" and similar words used in the patent application specification and claims of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate a quantity limitation, but indicate the existence of at least one. Words such as "include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0052] The present application embodiment provides an integrated cooling and lubrication module, such as Figure 1 As shown, the integrated cooling and lubrication module includes a module body 1, a filter 2, a cooler 3, an electronic oil pump 4, a pressure sensor 5, a first temperature sensor 6 and a control unit 7, and the filter 2, the cooler 3, the electronic oil pump 4, the pressure sensor 5, the first temperature sensor 6 and the control unit 7 are all fixedly connected to the module body 1.

[0053] Below, each part of the integrated cooling and lubrication module is introduced separately:

[0054] 1. Module body 1

[0055] The module body 1 is a component in the integrated cooling and lubrication module used to fix and connect the filter 2, the cooler 3, the electronic oil pump 4 and other components, and to deliver lubricating oil to the actuator.

[0056] like Figure 1 As shown, the module body 1 can have a block structure, and the module body 1 has a body oil inlet 1m, a body oil outlet 1n, a first cavity 1a, a second cavity 1b, a third cavity 1c, a fourth cavity 1d, a fifth cavity 1e, a sixth cavity 1f and a seventh cavity 1g.

[0057] One end of the main body oil inlet 1m is connected to the oil outlet of the actuator, one end of the main body oil outlet 1n is connected to the oil inlet of the actuator, and the other end of the main body oil inlet 1m, the first cavity 1a, the second cavity 1b, the third cavity 1c, the fourth cavity 1d, the fifth cavity 1e, the sixth cavity 1f, the seventh cavity 1g and the other end of the main body oil outlet 1n are connected in sequence.

[0058] Among them, the actuators are the reducer and motor of the pure electric vehicle.

[0059] Optionally, the module body 1 may have a plurality of channels connecting adjacent cavities. Figure 2 As shown, the module body 1 further has a first channel 1o, a second channel 1p, a third channel 1q, a fourth channel 1r, a fifth channel 1s and a sixth channel 1t.

[0060] The two ends of the first channel 1o are connected to the first cavity 1a and the second cavity 1b respectively, the two ends of the second channel 1p are connected to the second cavity 1b and the third cavity 1c respectively, the two ends of the third channel 1q are connected to the third cavity 1c and the fourth cavity 1d respectively, the two ends of the fourth channel 1r are connected to the fourth cavity 1d and the fifth cavity 1e respectively, the two ends of the fifth channel 1s are connected to the fifth cavity 1e and the sixth cavity 1f respectively, and the two ends of the sixth channel 1t are connected to the sixth cavity 1f and the seventh cavity 1g respectively.

[0061] In this way, the lubricating oil ( Figure 3 The oil can flow from the oil outlet of the execution structure into the oil inlet 1m of the module body 1, and then flow to the first cavity 1a through the oil inlet 1m of the module body. Figure 3As shown, the lubricating oil may flow through the first channel 1o, the second cavity 1b, the second channel 1p, the third cavity 1c, the third channel 1q, the fourth cavity 1d, the fourth channel 1r, the fifth cavity 1e, the fifth channel 1s, the sixth cavity 1f, the sixth channel 1t and the seventh cavity 1g in sequence, and finally flow to the body oil outlet 1n of the module body 1. Subsequently, the lubricating oil may flow into the actuator of the pure electric vehicle through the body oil outlet 1n.

[0062] In one example, the channels of the module body 1 used to connect adjacent cavities can all be circular channels. The channels of the module body 1 used to connect adjacent cavities can also be in various other shapes, such as elliptical, square, etc. The embodiment of the present application does not impose any limitation on the shape of the channels of the module body 1 used to connect adjacent cavities.

[0063] like Figure 3 As shown, the first surface 1z of the module body 1 may have a filter mounting hole, a cooler mounting hole and an electronic oil pump mounting hole, the filter mounting hole is used to fix the filter 2, the cooler mounting hole is used to fix the cooler 3, and the electronic oil pump mounting hole is used to fix the electronic oil pump 4.

[0064] The connection method between the filter 2, cooler 3 and electronic oil pump 4 and the module body 1 is a fixed connection, such as snap-on, bonding, etc. The embodiment of the present application does not impose any limitation on the connection method between the filter 2, cooler 3 and electronic oil pump 4 and the module body 1.

[0065] The module body 1 may be made of a polymer material, such as polyhexamethylene adipamide, ie, polyamide 66 (Polyamide 66, commonly known as 66 nylon).

[0066] In this way, since materials such as polyhexamethylene adipamide have good corrosion resistance, after the lubricating oil flowing from the actuator enters the module body 1, the module body 1 can maintain its original structure and maintain a relatively high strength.

[0067] Alternatively, the module body 1 may be a component manufactured by a pressure injection molding process.

[0068] When manufacturing the module body 1, since the polymer material has the characteristic of shrinking upon cooling, the solid polyamide 66 or high temperature resistant polyamide material can be first heated to a molten state, and then the molten polyamide 66 or high temperature resistant polyamide material can be added to a pre-made mold, and the molten material in the mold body can be continuously pressurized to increase the density of the molten material in the mold. Finally, the module body 1 can be obtained through processes such as cooling, mold opening, and demolding.

[0069] In this way, even if the molded module body 1 shrinks during cooling, there will be no voids or cracks, thereby improving the overall strength of the module body 1.

[0070] Optionally, the main body oil inlet 1m may be located on the second surface 1x of the module body 1, and there is a first preset angle between the main body oil inlet 1m and the second surface 1x.

[0071] like Figure 3 As shown, the main body oil inlet 1m is located on the second surface 1x of the module body 1, the distance from the end of the main body oil inlet 1m away from the first cavity 1a to the first surface 1z of the module body 1 is a first distance, and the distance from the end of the main body oil inlet 1m close to the first cavity 1a to the first surface 1z of the module body 1 is a second distance, and the first distance is smaller than the second distance.

[0072] Exemplarily, the first preset angle may be 60°.

[0073] In this way, the lubricating oil can flow into the first cavity 1a easily.

[0074] Optionally, the main body oil outlet 1n may be located on the third surface 1y of the module body 1, and a second preset angle is formed between the main body oil inlet 1m and the third surface 1y.

[0075] like Figure 3 As shown, the main body oil outlet 1n is located on the third surface 1y of the module body 1, the distance from the end of the main body oil outlet 1n away from the seventh cavity 1g to the first surface 1z of the module body 1 is the third distance, and the distance from the end of the main body oil outlet 1n close to the seventh cavity 1g to the first surface 1z of the module body 1 is the fourth distance, and the third distance is smaller than the fourth distance.

[0076] Exemplarily, the second preset angle may be 60°.

[0077] In this way, when the actuator does not need cooling and lubrication, the lubricating oil can easily flow back into the seventh cavity 1g.

[0078] 2. Filter 2

[0079] Filter 2 is a component in the integrated cooling and lubrication module used to filter impurities in the lubricating oil, such as Figure 1 As shown, the filter 2 is fixedly connected to the module body 1 and is located in the fourth cavity 1d of the module body 1.

[0080] The filter 2 may include an outer cylinder, a reflux valve, a filter element and a safety valve. The outer cylinder has an oil inlet of the filter 2 and an oil outlet of the filter 2. The oil inlet of the filter 2, the filter element, the safety valve, the reflux valve and the oil outlet of the filter 2 are sequentially connected.

[0081] In this way, when the lubricating oil passes through the filter 2, the filter 2 can filter out the metal debris generated by the wear of the reducer and the motor during operation. Therefore, the impurities in the lubricating oil can be significantly reduced, preventing the impurities from scratching the reducer and the motor, thereby extending the service life of the reducer and the motor.

[0082] Optional, such as Figure 5 As shown, the oil inlet 2i of the filter 2 may be located on the extension line of the axis of the third channel 1q.

[0083] In this way, the efficiency of lubricating oil flowing into the filter 2 can be improved.

[0084] 3. Cooler 3

[0085] The cooler 3 is a component in the integrated cooling and lubrication module for cooling the lubricating oil. Figure 1 As shown, the cooler 3 is fixedly connected to the module body 1 and is located in the sixth cavity 1f of the module body 1.

[0086] like Figure 4 As shown, the cooler 3 includes a first pipeline 3m and a second pipeline 3n.

[0087] The first pipeline 3m is used for circulating lubricating oil, and the two ends of the first pipeline 3m are respectively the oil inlet 3i and the oil outlet of the cooler 3, and the second pipeline 3n is used for circulating cooling liquid, and the first pipeline 3m and the second pipeline 3n are adjacent.

[0088] During implementation, the lubricating oil circulates in the first pipeline 3m, and the coolant circulates in the second pipeline 3n, and heat transfer occurs in the cooler 3. Specifically, the temperature of the coolant flowing in the second pipeline 3n is lower than the temperature of the lubricating oil flowing in the first pipeline 3m. The heat in the lubricating oil is transferred to the coolant in the second pipeline 3n through the first pipeline 3m in the form of heat transfer. As a result, the temperature of the coolant rises and the temperature of the lubricating oil drops. The cooled lubricating oil can enter the actuator to cool and lubricate the actuator.

[0089] Optionally, the first pipeline 3m and the second pipeline 3n may be wound in a spiral shape.

[0090] In this way, the heat transfer efficiency can be improved.

[0091] Optional, such as Figure 5 As shown, the oil inlet 3i of the cooler 3 may be located on the extension line of the axis of the fifth channel 1s.

[0092] In this way, the efficiency of the lubricating oil flowing into the cooler 3 can be improved.

[0093] 4. Electronic oil pump 4

[0094] The electronic oil pump 4 is a component in the integrated cooling and lubrication module that provides power for the flow of lubricating oil. Figure 1 As shown, the electronic oil pump 4 is fixedly connected to the module body 1 and is located in the second cavity 1 b of the module body 1 .

[0095] The electronic oil pump 4 is electrically connected to the battery of the pure electric vehicle. When the pure electric vehicle is in operation, the battery supplies power to the reducer, the motor and the electronic oil pump 4 at the same time. The electronic oil pump 4 enters the working state under the action of electric energy and pumps the lubricating oil in the first cavity 1a into the second cavity 1b.

[0096] Alternatively, if Figure 5 As shown, the oil inlet 4i of the electronic oil pump 4 may be located on the extension line of the axis of the first channel 1o.

[0097] In this way, the efficiency of lubricating oil flowing into the electronic oil pump 4 can be improved.

[0098] 5. Pressure sensor 5

[0099] The pressure sensor 5 is a component in the integrated cooling and lubrication module for detecting the cavity pressure in the module body 1, and the pressure sensor 5 is electrically connected to the control unit 7. Figure 1 As shown, the pressure sensor 5 is fixedly connected to the module body 1 and is located in the third cavity 1 c of the module body 1 .

[0100] During the operation of the integrated cooling and lubrication module, the electronic oil pump 4 pumps the lubricating oil into the third cavity 1c. Therefore, the pressure of the third cavity 1c will increase significantly. It is necessary to detect the pressure of the third cavity 1c in real time to prevent the pressure in the third cavity 1c from being too high and causing damage to the module body 1.

[0101] 6. First temperature sensor 6

[0102] The first temperature sensor 6 is a component in the integrated cooling and lubricating module for detecting the temperature of the lubricating oil after cooling. The first temperature sensor 6 is electrically connected to the control unit 7. Figure 1 As shown, the first temperature sensor 6 is fixedly connected to the module body 1 and is located in the seventh cavity 1g of the module body 1 .

[0103] After the lubricating oil is cooled by the cooler 3, it enters the seventh cavity 1g through the sixth channel 1t, and then flows to the actuator of the pure electric vehicle through the main body oil outlet 1n. Before the lubricating oil enters the actuator, it is necessary to detect whether the temperature of the lubricating oil is lower than the first preset temperature, so that the lubricating oil can cool and lubricate the actuator after entering the actuator.

[0104] Optionally, the first preset temperature may be 65°C.

[0105] VII. Control Unit 7

[0106] The control unit 7 is a component in the integrated cooling and lubrication module for controlling the output power of the electronic oil pump 4 and the cooling rate of the cooler based on preset conditions. The control unit 7 is electrically connected to the cooler 3, the electronic oil pump 4, the pressure sensor 5 and the first temperature sensor 6.

[0107] The control unit 7 may receive the pressure value of the third cavity 1 c measured by the pressure sensor 5 , and may control the output power of the electronic oil pump 4 based on the pressure value of the third cavity 1 c .

[0108] When the pressure value of the third chamber 1c is less than the first preset pressure, the control unit 7 controls the electronic oil pump 4 to operate at the first output power. When the pressure value of the third chamber 1c is equal to the first preset pressure, the control unit 7 controls the electronic oil pump 4 to operate at the second output power. When the pressure value of the third chamber 1c is greater than the first preset pressure and less than the second preset pressure, the control unit 7 controls the electronic oil pump 4 to operate at the third output power.

[0109] Among them, the first preset pressure is lower than the second preset pressure, the first preset power is higher than the second preset power, and the second preset power is higher than the third preset power.

[0110] When the pressure value of the third cavity 1 c is greater than or equal to the second preset pressure, the control unit 7 controls the electronic oil pump 4 to stop working, that is, controls the output power of the electronic oil pump 4 to be 0.

[0111] Thus, since the pressure of the third cavity 1c is greater than the pressure of the main body oil outlet 1n, after the electronic oil pump 4 stops working, the lubricating oil flows to the main body oil outlet 1n under the action of the pressure difference, and the pressure of the third cavity 1c decreases accordingly.

[0112] For example, the second preset pressure can be set according to the ultimate pressure that the third cavity 1c can withstand. For example, the second preset pressure can be 80% of the ultimate pressure that the third cavity 1c can withstand, that is, when the ultimate pressure that the third cavity 1c can withstand is 1MPa, the second preset pressure can be 0.8MPa. Similarly, the first preset pressure can be 50% of the ultimate pressure that the third cavity 1c can withstand, that is, when the ultimate pressure that the third cavity 1c can withstand is 1MPa, the first preset pressure can be 0.5MPa.

[0113] The control unit 7 may receive the first temperature value of the seventh cavity 1 g measured by the first temperature sensor 6 , and may control the cooling rate of the cooler 3 based on the temperature value of the seventh cavity 1 g .

[0114] Normally, the temperature of the lubricating oil flowing from the actuator to the oil inlet 1m of the body is about 100°C, and the control unit can control the cooling rate of the cooler 3 according to the first temperature value of the seventh cavity 1g. When the first temperature value is within the first preset interval, the control unit controls the coolant in the cooler 3 to flow at a first flow rate, and when the first temperature value is within the second preset interval, the control unit controls the coolant in the cooler 3 to flow at a second flow rate.

[0115] The second flow rate is greater than the first flow rate, and the temperature value corresponding to the second preset interval is greater than the temperature value corresponding to the first preset interval.

[0116] Exemplarily, the first preset temperature range may be 50-60°C, and the second preset temperature range may be 60-70°C.

[0117] Below, some optional structural features of the integrated cooling and lubrication module are introduced respectively:

[0118] Structural feature 1

[0119] like Figure 6 As shown, the first end 2 a of the filter 2 , the first end 3 a of the cooler 3 , and the first end 4 a of the electronic oil pump 4 may all extend out of the first surface 1 z of the module body 1 .

[0120] In this way, when the filter 2, cooler 3 or electronic oil pump 4 fails, the failed filter 2, cooler 3 or electronic oil pump 4 can be easily removed, thereby improving maintenance efficiency.

[0121] Structural feature 2

[0122] like Figure 7 As shown, the first end 2a of the filter 2, the first end 3a of the cooler 3 and the first end 4a of the electronic oil pump 4 may all be flush with the first surface 1z of the module body 1. The pressure sensor 5, the first temperature sensor 6 and the control unit 7 may all be located inside the module body 1.

[0123] In this way, the structure of the integrated cooling and lubrication module can be made compact, and the space required for the integrated cooling and lubrication module can be reduced.

[0124] Structural feature three

[0125] like Fig. 9 As shown, the integrated cooling and lubrication module may further include a second temperature sensor 8 .

[0126] The second temperature sensor 8 is a component in the integrated cooling and lubrication module for detecting the temperature of the lubricating oil before cooling. The second temperature sensor 8 is electrically connected to the control unit 7 .

[0127] like Fig. 9 As shown, the second temperature sensor 8 is located in the fifth cavity 1 e and is connected to the module body 1 .

[0128] The second temperature sensor 8 can detect the temperature of the lubricating oil in the fifth cavity 1e, that is, the temperature of the lubricating oil that has not been cooled by the cooler 3. The control unit 7 can respectively receive the second temperature value of the lubricating oil in the fifth cavity 1e detected by the second temperature sensor 8 and the first temperature value of the lubricating oil in the seventh cavity 1g detected by the first temperature sensor, and calculate the cooling temperature difference. When the cooling temperature difference is less than the first preset cooling temperature difference, the control unit 7 controls the coolant in the cooler 3 to flow at a third flow rate, so that the cooler 3 is at the first cooling rate. When the cooling temperature difference is greater than or equal to the second preset cooling temperature difference, the control unit 7 controls the coolant in the cooler 3 to flow at a fourth flow rate, so that the cooler 3 is at the second cooling rate.

[0129] The third flow rate is greater than the fourth flow rate, and the first cooling rate is greater than the second cooling rate.

[0130] Structural feature four

[0131] like Figure 8 As shown, the main body oil inlet 1m and the main body oil outlet 1 may both be located on the first surface 1z of the module body 1 .

[0132] In this way, the difficulty of processing the module body 1 can be reduced.

[0133] Structural features five

[0134] like Fig. 9 As shown, a supporting ring 9 may be provided on the inner wall of the oil inlet 1m of the module body 1 .

[0135] The material of the supporting ring 9 can be high temperature resistant polyamide (High Temperature Polyamides, HTPA) (commonly known as high temperature nylon) and the like.

[0136] Since the high temperature resistant polyamide has good heat resistance, after the relatively high temperature lubricating oil flowing from the actuator enters the module body 1 , the supporting ring 9 can maintain its original structure and maintain relatively high strength.

[0137] In this way, the main body oil inlet 1m can be prevented from being deformed by heat, which may cause blockage of the module body 1.

[0138] The embodiment of the present application provides an integrated cooling and lubrication module, which includes a module body 1 and a cooler 3. The module body 1 has a body oil inlet 1m, a body oil outlet 1n and a plurality of cavities connected in sequence. The cooler 3 is located in the cavity and is connected to the module body 1. One end of the body oil inlet 1m is connected to the oil outlet of the actuator, and one end of the body oil outlet 1n is connected to the oil inlet of the actuator. In this way, it is not necessary to set an oil channel pipeline for connecting the filter and the cooler on the housing of the actuator, and lubricating oil can be delivered to the actuator, which reduces the design cost of the actuator housing. In addition, the module body is a simple housing, and its cost is much lower than that of the actuator housing. When the module body is deformed by external force, the module body can be directly replaced, which reduces the maintenance cost of the integrated cooling and lubrication module.

[0139] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An integrated cooling and lubrication module, characterized in that: The integrated cooling and lubrication module is applied to a pure electric vehicle, and comprises a module body (1), and a filter (2), a cooler (3), an electronic oil pump (4), a pressure sensor (5), a first temperature sensor (6), and a control unit (7) fixedly connected to the module body (1); The module body (1) comprises a body oil inlet (1m), a body oil outlet (1n), a first cavity (1a), a second cavity (1b), a third cavity (1c), a fourth cavity (1d), a fifth cavity (1e), a sixth cavity (1f) and a seventh cavity (1g); one end of the body oil inlet (1m) is connected to the oil outlet of the actuator; one end of the body oil outlet (1n) is connected to the oil inlet of the actuator; the other end of the body oil inlet (1m), the first cavity (1a), the second cavity (1b), the third cavity (1c), the fourth cavity (1d), the fifth cavity (1e), the sixth cavity (1f), the seventh cavity (1g) and the other end of the body oil outlet (1n) are connected in sequence; wherein the actuator is a reducer and a motor of the pure electric vehicle; The electronic oil pump (4) is located in the second cavity (1b) and is connected to the module body (1); the filter (2) is located in the fourth cavity (1d) and is connected to the module body (1); the cooler (3) is located in the sixth cavity (1f) and is connected to the module body (1); The pressure sensor (5) is located in the third cavity (1c) and is connected to the module body (1), and the pressure sensor (5) is used to detect the pressure value of the lubricating oil in the third cavity (1c); The first temperature sensor (6) is located in the seventh cavity (1g) and is connected to the module body (1), and the first temperature sensor (6) is used to detect a first temperature value of the lubricating oil in the seventh cavity (1g); The control unit (7) is electrically connected to the cooler (3), the electronic oil pump (4), the pressure sensor (5) and the first temperature sensor (6), and the control unit is used to: controlling the output power of the electronic oil pump (4) based on the pressure value detected by the pressure sensor (5); Based on the first temperature value detected by the first temperature sensor (6), the cooling rate of the cooler (3) is controlled.

2. The integrated cooling and lubrication module according to claim 1, characterized in that: The module body (1) further comprises a first channel (1o), a second channel (1p), a third channel (1q), a fourth channel (1r), a fifth channel (1s) and a sixth channel (1t); The first channel (1o) connects the first cavity (1a) and the second cavity (1b), the second channel (1p) connects the second cavity (1b) and the third cavity (1c), the third channel (1q) connects the third cavity (1c) and the fourth cavity (1d), the fourth channel (1r) connects the fourth cavity (1d) and the fifth cavity (1e), the fifth channel (1s) connects the fifth cavity (1e) and the sixth cavity (1f), and the sixth channel (1t) connects the sixth cavity (1f) and the seventh cavity (1g).

3. The integrated cooling and lubrication module according to claim 2, characterized in that: The first channel (1o), the second channel (1p), the third channel (1q), the fourth channel (1r), the fifth channel (1s) and the sixth channel (1t) are all circular channels.

4. The integrated cooling and lubrication module according to claim 3, characterized in that: The oil inlet (4i) of the electronic oil pump (4) is located on the extension line of the axis of the first channel (1o), the oil inlet (2i) of the filter (2) is located on the extension line of the axis of the third channel (1q), and the oil inlet (3i) of the cooler (3) is located on the extension line of the axis of the fifth channel (1s).

5. The integrated cooling and lubrication module according to claim 1, characterized in that: The first end (2a) of the filter (2), the first end (3a) of the cooler (3) and the first end (4a) of the electronic oil pump (4) all extend out of the first surface (1z) of the module body (1).

6. The integrated cooling and lubrication module according to claim 1, characterized in that: The first end (2a) of the filter (2), the first end (3a) of the cooler (3) and the first end (4a) of the electronic oil pump (4) are all flush with the first surface (1z) of the module body (1); the pressure sensor (5), the first temperature sensor (6) and the control unit (7) are all located inside the module body (1).

7. The integrated cooling and lubrication module according to claim 1, characterized in that: The integrated cooling and lubrication module further comprises a second temperature sensor (8), the second temperature sensor (8) being located in the fifth cavity (1e) and connected to the module body (1), the second temperature sensor (8) being used to detect a second temperature value of the lubricating oil in the fifth cavity (1e); The control unit is used to control the cooling rate of the cooler (3) based on the first temperature value detected by the first temperature sensor (6) and the second temperature value detected by the second temperature sensor (8).

8. The integrated cooling and lubrication module according to claim 1, characterized in that: The module body (1) is a component made by pressure injection molding.

9. The integrated cooling and lubrication module according to claim 1, characterized in that: The material of the module body (1) is polyhexamethylene adipamide.

10. A pure electric vehicle, characterized in that: The pure electric vehicle comprises the integrated cooling and lubrication module as described in any one of claims 1-9.

Images