CN210404997U - Motor cooling system and all-terrain vehicle with same - Google Patents

Abstract

The utility model discloses a motor cooling system and all terrain vehicle that has it, motor cooling system includes: the motor is provided with a cooling flow channel, and the cooling flow channel is provided with a cooling liquid inlet and a cooling liquid outlet; one end of the water cooler is connected with the cooling liquid outlet; and the water pump is provided with a water pump inlet and a water pump outlet, the water pump inlet is connected with the other end of the water cooler, the water pump outlet is connected with the cooling liquid inlet, and the water pump is used for pumping the cooling liquid to enable the cooling liquid to only flow in the cooling flow channel in a circulating manner. According to the utility model discloses a motor cooling system can make the cooling effect of motor better. And moreover, the cooling effect of the motor can be further improved, the occupied space of the motor can be reduced, and when the motor cooling system is applied to vehicles such as an all-terrain vehicle with hybrid power, the space can be saved for the layout of an engine and the whole vehicle, so that the reasonable utilization of the limited space of a power assembly is realized.

Description

Motor cooling system and all-terrain vehicle with same

Technical Field

The utility model belongs to the technical field of the all terrain vehicle technique and specifically relates to an all terrain vehicle that relates to a motor cooling system and have it.

Background

In the related art, the cooling method generally used for the hybrid power in the vehicle is air cooling or water cooling. When the hybrid power is cooled by adopting a water cooling mode, the engine and the motor share the same cooling system for cooling, however, the heat generated by the engine and the motor in the working process is higher, so that the heat taken away by the cooling liquid is limited, and the cooling effect is poor. In addition, the hybrid power has a problem of a small layout space in the entire vehicle.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the present invention is to provide a motor cooling system, which has a better cooling effect.

According to the utility model discloses motor cooling system of first aspect embodiment includes: an electric machine having a cooling flow channel with a cooling fluid inlet and a cooling fluid outlet; one end of the water cooler is connected with the cooling liquid outlet; the water pump is provided with a water pump inlet and a water pump outlet, the water pump inlet is connected with the other end of the water cooler, the water pump outlet is connected with the cooling liquid inlet, and the water pump is used for pumping the cooling liquid to enable the cooling liquid to only flow in the cooling flow channel in a circulating mode.

According to the utility model discloses motor cooling system makes the water pump be used for the pump sending coolant liquid to make the coolant liquid only at the cooling runner inner loop flow through setting up, can make the cooling effect of motor better. And, through arranging the cooling runner on the motor, can further promote the cooling effect of motor, and can reduce the occupation space of motor, when motor cooling system is applied to the vehicle for example have hybrid's all terrain vehicle, can save space for the overall arrangement of engine and whole car to realize the rational utilization to the finite space of power assembly.

According to some embodiments of the utility model, the motor includes the motor casing, the cooling runner forms inside the motor casing, just the cooling runner is followed the circumference of motor casing is the S-shaped extension.

According to some embodiments of the utility model, the motor casing is including forming into the first casing and the second casing that form into annular and from inside to outside nested setting, first casing with be equipped with between the second casing that circumference interval set up separate disconnected muscle and a plurality of separation muscle, wherein the coolant liquid import with the coolant liquid export is located respectively separate disconnected muscle both sides in order to incite somebody to action the coolant liquid import with the coolant liquid export separates, and is a plurality of separate muscle is followed the circumference staggered arrangement of motor casing is in order to inject the S-shaped cooling runner.

According to some embodiments of the utility model, it is a plurality of the partition muscle is followed the even interval distribution of circumference of motor casing.

According to some embodiments of the utility model, the motor casing includes the motor casing body and establishes respectively two end covers at the axial both ends of motor casing body, motor casing body and two the end cover is injectd jointly the cooling flow channel.

According to the utility model discloses a some embodiments, separate disconnected muscle and a plurality of separate to inject the subchannel between two adjacent in the muscle, the subchannel runs through the axial both ends of motor casing body, two the end cover is plugged up respectively the both ends of subchannel just with a plurality of the subchannel is injectd jointly the cooling runner.

According to the utility model discloses a some embodiments, the axial both ends of motor casing body are equipped with a plurality of installation departments that the circumference interval set up respectively, and are a plurality of the installation department is with a plurality of separate muscle one-to-one links to each other, two of them the end cover passes through a plurality of threaded fastener and a plurality of the cooperation of installation department realize with the connection of motor casing body.

According to some embodiments of the invention, the width of the mounting portion is greater than the width of the separating rib.

According to some embodiments of the utility model, the coolant liquid import with the coolant liquid export is all established the side of motor casing body.

According to some embodiments of the invention, the motor cooling system further comprises: and the motor controller is in communication connection with the water pump.

According to a second aspect of the present invention, an all-terrain vehicle is provided, comprising a motor cooling system according to the above-described first aspect of the present invention.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic diagram of a motor cooling system according to an embodiment of the present invention;

fig. 2 is a schematic view of a cooling flow passage in a motor casing of a motor cooling system according to an embodiment of the present invention in an expanded state;

fig. 3 is a schematic view of a motor casing body according to an embodiment of the present invention;

fig. 4 is another schematic view of a motor casing body according to an embodiment of the present invention;

fig. 5 is yet another schematic view of a motor casing body according to an embodiment of the present invention;

FIG. 6 is an enlarged view of portion A circled in FIG. 5;

fig. 7 is a perspective view of a motor casing body according to an embodiment of the present invention, wherein the second casing is not shown;

fig. 8 is a perspective view of another angle of the motor casing body shown in fig. 7, with the second casing not shown.

Reference numerals:

100: a motor cooling system;

1: a motor; 11: a cooling flow channel;

111: a coolant inlet; 112: a coolant outlet;

113: a sub-flow channel; 12: a motor casing body;

121: an installation part; 1211: a threaded hole;

13: separating ribs; 141: a first partitioning rib; 142: a second partitioning rib;

15: a first housing; 16: a second housing;

2: a water cooler; 3: a water pump;

31: an inlet of the water pump; 32: an outlet of the water pump;

4: a motor controller.

Detailed Description

Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.

An electric machine cooling system 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 8. The motor cooling system 100 may be applied to a vehicle such as an all-terrain vehicle (not shown) having hybrid power. In the following description of the present application, the motor cooling system 100 is illustrated as being applied to an all-terrain vehicle having hybrid power. Of course, those skilled in the art will appreciate that motor cooling system 100 may also be applied to other types of vehicles and is not limited to ATVs having hybrid power.

As shown in fig. 1 to 8, a motor cooling system 100 according to an embodiment of the present invention includes a motor 1, a water cooler 2, and a water pump 3.

Specifically, the motor 1 has a cooling flow passage 11, and the cooling flow passage 11 has a cooling liquid inlet 111 and a cooling liquid outlet 112. For example, as shown in fig. 3 to 8, the cooling flow path 11 is disposed inside the motor 1, the cooling liquid inlet 111 is used for introducing cooling liquid such as water into the cooling flow path 11, and the cooling liquid outlet 112 is used for discharging the cooling liquid flowing through the cooling flow path 11. When the motor 1 needs to be cooled in the working process of the motor 1, the cooling liquid can be introduced into the cooling flow channel 11 through the cooling liquid inlet 111, the cooling liquid can exchange heat with the motor 1 in the process of flowing through the cooling flow channel 11, so that the temperature of the motor 1 is reduced, and the cooling liquid after heat exchange is discharged from the cooling liquid outlet 112. From this, through arranging cooling runner 11 in motor 1, it is better to the cooling effect of motor 1, and motor 1 inner space can obtain reasonable effective abundant utilization, when motor cooling system 100 is applied to the vehicle for example have hybrid's all terrain vehicle, motor cooling system 100's occupation space is little to saved the space for the overall arrangement of engine and whole car, effectively solved hybrid and arranged the narrow and small problem in space on whole car. In addition, the cooling flow channel 11 is arranged inside the motor 1, so that the use is more reliable, the damage is not easy to damage, and the cost can be reduced.

One end (e.g., the lower end in fig. 1) of the water cooler 2 is connected to the coolant outlet 112 of the cooling flow passage 11, and the water cooler 2 is used to cool the heat-exchanged coolant entering therein. Here, it should be noted that the structure, the operation principle, and the like of the water cooler 2 are well known to those skilled in the art, and are not described herein again.

The water pump 3 has a water pump inlet 31 and a water pump outlet 32, the water pump inlet 31 of the water pump 3 is connected to the other end (e.g., the upper end in fig. 1) of the water cooler 2, and the water pump outlet 32 of the water pump 3 is connected to the coolant inlet 111 of the cooling flow path 11. When the water pump 3 is operated, the coolant can flow in a circulating manner among the motor 1, the water cooler 2 and the water pump 3 by the pumping action of the water pump 3, specifically, the coolant entering the water pump 3 through the water pump inlet 31 can flow out from the water pump outlet 32 by the pumping action of the water pump 3, enters the cooling flow channel 11 through the coolant inlet 111 of the cooling flow channel 11 to cool the motor 1, the temperature of the coolant after heat exchange with the motor 1 is increased, the coolant is discharged through the coolant outlet 112 and enters the water cooler 2 through the one end of the water cooler 2, the temperature of the coolant is decreased in the water cooler 2, and flows out of the water cooler 2 through the other end of the water cooler 2, and then returns to the water pump 3 again through the water pump inlet 31. Circulating in this way, the cooling of the motor 1 is realized.

The water pump 3 is used for pumping the cooling liquid so that the cooling liquid circulates only in the cooling flow passage 11. The water pump 3 is now a separate water pump 3. Compare with same set of cooling system of traditional engine and motor 1 sharing, adopt independent water pump 3, water cooler 2 to cool off motor 1, independent water pump 3 can provide independent cooling liquid power source and guarantee its water pressure for the coolant liquid, can reach best cooling effect, and the cooling effect is more showing. Moreover, by arranging the water pump outlet 32 of the water pump 3 to be connected with the cooling inlet of the cooling flow passage 11 of the motor 1, the cooling liquid can directly flow into the cooling flow passage 11 of the motor 1 under the pumping of the water pump 3, so that the cooling effect can be further improved.

According to the utility model discloses motor cooling system 100 makes water pump 3 be used for the pump sending coolant liquid to make the coolant liquid only at cooling channel 11 inner loop flow through the setting, can make motor 1's cooling effect better. Moreover, the cooling runner 11 is arranged on the motor 1, so that the cooling effect of the motor 1 can be further improved, the occupied space of the motor 1 can be reduced, and when the motor cooling system 100 is applied to vehicles such as an all-terrain vehicle with hybrid power, the space can be saved for the layout of an engine and the whole vehicle, so that the reasonable utilization of the limited space of a power assembly is realized.

According to some embodiments of the present invention, referring to fig. 2 in combination with fig. 3-8, the motor 1 includes a motor casing, the cooling flow channel 11 is formed inside the motor casing, and the cooling flow channel 11 extends in an S-shape along a circumferential direction of the motor casing. From this, through arranging cooling runner 11 inside the motor casing, the coolant liquid is nearer apart from the higher region of the temperature of motor 1, thereby the heat transfer effect is better, and, make cooling runner 11 be the S-shaped extension in the circumference of motor casing through setting up, the route of cooling runner 11 has been prolonged, the time that the coolant liquid stayed in cooling runner 11 is longer slightly, thereby can be more fully with the heat transfer of motor 1, further promote the heat transfer effect, and made things convenient for the processing of cooling runner 11, can practice thrift the cost.

Specifically, for example, as shown in fig. 2 to 8, the motor casing includes a first casing 15 and a second casing 16 which are formed into a ring shape and are nested from inside to outside, a partition rib 13 and a plurality of partition ribs are provided at intervals in the circumferential direction between the first casing 15 and the second casing 16, wherein the cooling liquid inlet 111 and the cooling liquid outlet 112 are respectively located at both sides of the partition rib 13 to partition the cooling liquid inlet 111 and the cooling liquid outlet 112, and the plurality of partition ribs are arranged in a staggered manner in the circumferential direction of the motor casing to define the S-shaped cooling flow passage 11. In the description of the present invention, "a plurality" means two or more. For example, the first housing 15 and the second housing 16 of the motor casing may be coaxially arranged, the first housing 15 may be provided therein with a stator (not shown in the drawings), a rotor (not shown in the drawings) and the like, the first housing 15 and the second housing 16 are spaced apart from each other to define a cooling cavity, the partition rib 13 and the plurality of partition ribs are both provided in the cooling cavity and extend in the axial direction of the motor 1 casing, the partition rib 13 and the plurality of partition ribs jointly partition the cooling cavity into a flow passage in which the cooling liquid flows in one direction (i.e., the cooling flow passage 11 described above), the cooling liquid inlet 111 and the cooling liquid outlet 112 are partitioned by the partition rib 13 in the circumferential direction of the motor casing, the plurality of partition ribs may include a plurality of first partition ribs 141 and a plurality of second partition ribs 142, the plurality of first partition ribs 141 may each be oriented from one axial end (e.g., the upper end in fig. 7 and 8) of the cooling cavity toward the other axial end (e.g., lower end in fig. 7 and 8), and the plurality of first partition ribs 141 are spaced apart from the other axial end of the cooling cavity, the plurality of second partition ribs 142 may each extend from the other axial end of the cooling cavity toward the one axial end thereof, and the plurality of second partition ribs 142 are spaced apart from the one axial end of the cooling cavity, and one first partition rib 141 is disposed between two adjacent second partition ribs 142, so that the plurality of first partition ribs 141 and the plurality of second partition ribs 142 define the S-shaped cooling flow passage 11 in the cooling cavity. Therefore, by adopting the unique S-shaped cooling flow channel 11, the cooling liquid can adopt a one-way circulating cooling path in which the cooling liquid inlet 111 enters and the cooling liquid outlet 112 flows out, the cooling liquid is fully contacted with the wall surface in the cooling cavity of the motor 1, the heat generated in the working process of the motor 1 is fully cooled, and the cooling effect is enhanced.

Alternatively, referring to fig. 3 to 5, the plurality of partition ribs are uniformly spaced along the circumferential direction of the motor casing. This makes it possible to cool the entire motor 1 more uniformly by the coolant. It can be understood that the specific arrangement mode of the plurality of separating ribs in the motor casing can be specifically set according to actual requirements so as to better meet the actual application.

According to some embodiments of the present invention, the motor casing includes a motor casing body 12 and two end covers (not shown) respectively disposed at two axial ends of the motor casing body 12, and the motor casing body 12 and the two end covers jointly define the cooling flow passage 11. For example, as shown in fig. 3 to 8, a sub flow channel 113 is defined between the partition rib 13 and two adjacent ones of the plurality of partition ribs, the sub flow channel 113 penetrates through two axial ends of the motor casing body 12, and two end caps respectively block two ends of the sub flow channel 113 and define the cooling flow channel 11 together with the plurality of sub flow channels 113. Therefore, the motor casing body 12 and the two end covers jointly define the cooling flow channel 11, the machining process of the cooling flow channel 11 is simplified, and therefore cost can be reduced.

For example, in the example of fig. 7, the first and second partition ribs 141 and 142 are the same in length, so that two end caps may be directly disposed at both axial ends of the motor case body 12 to block both ends of the plurality of sub flow channels 113. Therefore, the processing is simple and the cost is low. Of course, the present invention is not limited thereto, and the lengths of the first separating rib 141 and the second separating rib 142 may also be different, for example, in the example of fig. 8, the length of the first separating rib 141 is greater than the length of the second separating rib 142, and at this time, in order to ensure the uniformity of the width of the whole cooling flow channel 11, a groove may be provided at the position of the lower end cover corresponding to the first separating rib 141.

Further, referring to fig. 3-6 in combination with fig. 7 and 8, a plurality of installation parts 121 are respectively disposed at two axial ends of the motor casing body 12 and circumferentially spaced from each other, the installation parts 121 are connected with the partition ribs in a one-to-one correspondence manner, and two end covers are connected with the motor casing body 12 through the matching of a plurality of threaded fasteners and the installation parts 121. Alternatively, the threaded fastener is a bolt or the like. For example, as shown in fig. 3 to 8, the plurality of mounting portions 121 are uniformly spaced along the circumferential direction of the motor casing body 12, each mounting portion 121 is formed with a threaded hole 1211, when the end cover is assembled with the motor casing body 12, a bolt can pass through the end cover to be in threaded connection with the threaded hole 1211 on the corresponding mounting portion 121, the plurality of mounting portions 121 and the plurality of partition ribs are connected in one-to-one correspondence by setting, the plurality of mounting portions 121 can play a part of the partition rib while ensuring that the connection between the motor casing body 12 and the end cover is reliable, and thus the structure in the motor 1 is further fully utilized.

Fig. 3 to 5 show 10 mounting portions 121 at one axial end of the motor casing body 12 (the included angle between two adjacent mounting portions 121 is 18 °), that is, 20 mounting portions 121 at two axial ends of the motor casing body 12 are used for illustrative purposes, but after reading the technical solution of the present application, it is obvious that the skilled person can understand that the solution is applied to the technical solutions of other numbers of mounting portions 121, which also falls within the protection scope of the present invention.

Alternatively, as shown in fig. 7 and 8, the width of the mounting portion 121 is greater than the width of the partition rib. Specifically, the width of the mounting portion 121 is greater than the width of the first partitioning rib 141, and the width of the mounting portion 121 is greater than the width of the second partitioning rib 142. Therefore, the width of the mounting part 121 is wider, so that the connection strength between the end cover and the motor casing body 12 can be improved; the width that makes first partition muscle 141 and second partition muscle 142 through the setting is thinner, when guaranteeing to form the cooling runner 11 of S-shaped, has increased the area of contact of coolant liquid with the motor casing, has promoted the cooling effect.

According to some embodiments of the present invention, referring to fig. 3-5, the coolant inlet 111 and the coolant outlet 112 are both disposed at the side of the motor casing body 12. Thereby, the arrangement of the cooling liquid inlet 111 and the cooling liquid outlet 112 is facilitated, and the introduction of the cooling liquid into the cooling flow passage 11 is facilitated.

Alternatively, the electric machine 1 is an MG1 electric machine. It is understood that the "MG 1 motor" refers to a motor having three functions of driving an engine, starting the engine, and generating electricity at the same time. But is not limited thereto.

According to some embodiments of the present invention, as shown in fig. 1, the motor cooling system 100 further includes: and the motor controller 4 is in communication connection with the water pump 3. The water pump 3 may now be an electric water pump 3. Optionally, the motor controller 4 and the water pump 3 are connected by a circuit, when the motor 1 is connected with the water pump 3 and powered on, the water pump 3 works to pump the cooling liquid into the motor 1, take away the heat of the motor 1 and cool the cooling liquid by the water cooler 2, and circulate (the direction of the arrow shown in fig. 1 is the flowing direction of the cooling liquid) so as to control the working temperature of the motor 1 within a normal range, and when the motor controller 4 is powered off the water pump 3, the water pump 3 stops working. Therefore, the automatic control of the water pump 3 can be realized by adopting the motor controller 4 to control whether the water pump 3 works or not.

Optionally, the motor controller 4 is an MCU (micro control Unit, also called a microcomputer or a single chip microcomputer), which appropriately reduces the frequency and specification of a Central Processing Unit (CPU), and integrates peripheral interfaces such as a memory, a counter (Timer), a USB, an a/D converter, a UART, a PLC, a DMA, and even an LCD driving circuit on a single chip to form a chip-level computer, thereby performing different combination control for different application occasions.

According to a second aspect of the present invention, an all-terrain vehicle comprises a motor cooling system 100 according to the above-described first aspect of the present invention.

According to the utility model discloses all terrain vehicle, through adopting foretell motor cooling system 100, be showing motor 1's cooling effect, and spatial arrangement is more reasonable.

Other constructions and operation of atvs according to embodiments of the invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present invention, it is to be understood that the terms "center", "lateral", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

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

In the description of the present invention, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.

In the description of the invention, the first feature being "on", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An electric machine cooling system, comprising:

an electric machine having a cooling flow channel with a cooling fluid inlet and a cooling fluid outlet;

one end of the water cooler is connected with the cooling liquid outlet;

the motor comprises a motor shell, the cooling runner is formed inside the motor shell, and the cooling runner extends in an S shape along the circumferential direction of the motor shell.

2. The motor cooling system of claim 1, wherein the motor casing comprises a first casing and a second casing which are formed into an annular shape and are nested from inside to outside, a partition rib and a plurality of partition ribs are arranged between the first casing and the second casing at intervals in the circumferential direction, the coolant inlet and the coolant outlet are respectively located on two sides of the partition rib to partition the coolant inlet and the coolant outlet, and the partition ribs are arranged in a staggered manner in the circumferential direction of the motor casing to define the S-shaped cooling flow channel.

3. The motor cooling system according to claim 2, wherein a plurality of the partition ribs are evenly spaced along a circumferential direction of the motor case.

4. The motor cooling system according to claim 2 or 3, wherein the motor casing includes a motor casing body and two end caps provided at both axial ends of the motor casing body, respectively, and the motor casing body and the two end caps together define the cooling flow passage.

5. The motor cooling system according to claim 4, wherein a sub-flow passage is defined between the partition rib and two adjacent ones of the plurality of partition ribs, the sub-flow passage extends through two axial ends of the motor casing body, and the two end covers respectively block the two ends of the sub-flow passage and define the cooling flow passage together with the plurality of sub-flow passages.

6. The motor cooling system according to claim 4, wherein a plurality of mounting portions are respectively provided at two axial ends of the motor casing body at intervals in the circumferential direction, the plurality of mounting portions are connected with the plurality of partition ribs in a one-to-one correspondence manner, and two of the end covers are connected with the motor casing body by means of matching of a plurality of threaded fasteners and the plurality of mounting portions.

7. The motor cooling system of claim 6, wherein the mounting portion has a width greater than a width of the spacer rib.

8. The motor cooling system of claim 4, wherein the coolant inlet and the coolant outlet are each provided on a side of the motor casing body.

9. The electric machine cooling system of claim 1, further comprising:

and the motor controller is in communication connection with the water pump.

10. An all-terrain vehicle, characterized in that it comprises an electric machine cooling system according to any one of claims 1-9.

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