CN110843465A

CN110843465A - Multichannel cooling valve and electric automobile cooling system

Info

Publication number: CN110843465A
Application number: CN201911319013.4A
Authority: CN
Inventors: 陈东升
Original assignee: Hella Xiamen Electronic Device Co Ltd
Current assignee: Hella Xiamen Electronic Device Co Ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-02-28

Abstract

The invention discloses a multi-channel cooling valve and an electric automobile cooling system, wherein the multi-channel cooling valve comprises a valve body with an upper layer and a lower layer and a shell matched with the periphery of the valve body, the upper layer of the valve body is provided with a plurality of upper channels, the lower layer of the valve body is provided with a plurality of lower channels, the upper channels and the lower channels are arranged in a staggered manner, the valve body is fixedly matched with an actuator of an automobile, and the actuator can drive the valve body to synchronously rotate when rotating; a plurality of joints communicated with the valve body are arranged on the shell at intervals, and the height of each joint is larger than or equal to the distance between the top surface of the upper channel and the bottom surface of the lower channel of the valve body. The invention has simple structure, can simplify the connection of each circulating cooling module in the electric automobile, fully exerts the performance of the cooling system and improves the endurance mileage of the automobile.

Description

Multichannel cooling valve and electric automobile cooling system

Technical Field

The invention relates to the technical field of automobile parts, in particular to a multi-channel cooling valve and an electric automobile cooling system using the same.

Background

Along with the technology progress which is different day by day, people pursue the quality of life more and more, automobiles become indispensable transportation tools for daily trips, and the requirements of people on the comfort, the safety, the economy and the environmental protection of the automobiles are more and more selected.

With continuous consumption of petroleum energy reserves and continuous aggravation of environmental pollution problems, an electric automobile as a vehicle with diversified energy sources and less pollution emission is bound to become a mainstream of automobile development in the near future, and has a tendency of replacing a traditional fuel vehicle.

Many electric control parts in new energy vehicle types need liquid cooling to ensure the normal operation of the parts. Currently, matching cooling systems is an effective way to address thermal management issues for power drive systems. The heat exchanger, the water jacket and the cooling liquid exchange heat with the heating element to take away the generated waste heat, thereby ensuring that corresponding parts work in a proper temperature range.

Compare traditional car, pure electric vehicles's cooling system need compromise cooling such as motor, battery, and system architecture is more complicated. The existing cooling system for pure electric vehicles usually has three heat exchangers, namely a medium-temperature radiator for cooling the motor system, a cooler for cooling the power battery and a heat exchanger for cooling the air conditioning system. The three heat exchangers form a front-end cooling module, need to be associated through a plurality of three-way valves or four-way valves, are relatively complex in structure, have relatively large associated thermal hazard influence, and are not beneficial to performance exertion of a cooling system. Therefore, how to reasonably simplify the structural design while ensuring the performance of the cooling system is one of the key problems in the development of pure electric vehicles.

Disclosure of Invention

The invention aims to overcome the technical defects and provide a multi-channel cooling valve which has a simple structure, can simplify the connection of each circulating cooling module in an electric automobile and fully exerts the performance of a cooling system, and the cooling system of the electric automobile.

In order to achieve the above purpose, the solution of the invention is:

a multi-channel cooling valve, comprising:

the valve body is cylindrical and is divided into an upper layer and a lower layer, the upper layer of the valve body is provided with a plurality of upper channels, the lower layer of the valve body is provided with a plurality of lower channels, the upper channels and the lower channels are arranged in a staggered manner, the valve body is fixedly matched with an actuator of an automobile, and the actuator can drive the valve body to synchronously rotate when rotating;

the casing, its cooperation is provided with a plurality of joints that communicate the valve body in the periphery of valve body on the casing at the interval, and the height that connects is more than or equal to the valve body and goes up the distance between passageway top surface and the lower passageway bottom surface.

Furthermore, the number of the upper channels and the number of the lower channels of the valve body are respectively three.

Further, the three upper channels of the valve body are any one or any combination of arc-shaped grooves penetrating through the side wall of the valve body or arc-shaped channels with openings at two ends; the three lower channels of the valve body are any one or any combination of arc-shaped channels with openings at two ends, wherein the arc-shaped grooves penetrating through the side wall of the valve body are provided with the arc-shaped channels.

An electric vehicle cooling system, comprising: the cooling valve comprises a valve body and a shell, wherein the valve body is cylindrical and is divided into an upper layer and a lower layer, the upper layer of the valve body is provided with three upper channels, the lower layer of the valve body is provided with three lower channels, the upper channels and the lower channels are arranged in a staggered manner, the valve body is fixedly matched with an actuator of an automobile, and the actuator can drive the valve body to synchronously rotate when rotating; the shell cooperation is in the periphery of valve body, and the interval is provided with six at least joints that communicate the valve body on the shell, connect and correspond inlet and the liquid outlet of connecting actuating system, air conditioning system return circuit and battery system cooling circuit, and the height that connects is more than or equal to the distance between passageway top surface and the lower passageway bottom surface on the valve body, when making the valve body rotate, through the last passageway of valve body or the lower passageway with the corresponding articulate on the shell, break-make and switching between the three return circuit of actuating system, air conditioning system return circuit and battery system cooling circuit among the control electric automobile.

Further, the driving system comprises a first water pump, a driving motor and a radiator which are connected in series through a pipeline; the air conditioning system loop comprises a second water pump, a heating element and a heat exchanger which are connected in series through pipelines; the battery system cooling loop comprises a third water pump, a battery and a cooler which are connected in series through pipelines, and cooling liquid is arranged in the pipelines.

Furthermore, the shell of the cooling valve is provided with A, B, C, D, E, F six joints, the joint A and the joint B are respectively connected with a first water pump and a radiator of the driving system through pipelines, the joint C and the joint D are respectively connected with a second water pump and a heat exchanger of an air conditioning system loop through pipelines, and the joint E and the joint F are respectively connected with a third water pump and a cooler of a battery system cooling loop through pipelines.

Furthermore, A, B, C, D, E, F, G seven joints are arranged on a shell of the cooling valve, a first water pump of the driving system is connected with the joint A of the shell, the driving motor is connected with the first water pump, a three-way joint is arranged between the driving motor and the radiator and is connected with the driving motor, the radiator and the joint C, and the radiator is connected with the joint B; a third water pump of the battery system cooling loop is connected with a joint D, the battery is connected with a third motor, a three-way joint is arranged between the battery and the cooler and is respectively connected with the battery, a three-way valve and the cooler, and the three-way valve is connected with a joint E; and a second water pump connecting joint F of the air conditioning system loop, a heating element connected with the second water pump, and a heat exchanger connecting joint G.

Furthermore, A, B, C, D, E, F, G, H eight joints are arranged on the shell of the cooling valve, a first water pump of the driving system is connected with the joint A of the shell, the driving motor is connected with the first water pump, a three-way joint is arranged between the driving motor and the radiator, the three-way joint is connected with the driving motor, the radiator and the joint B, and the radiator is connected with the joint C; a third water pump of the battery system cooling loop is connected with a connector D, the battery is connected with a third motor, a three-way connector is arranged between the battery and the cooler, the three-way connector is respectively connected with the battery, a connector E and the cooler, and the cooler is connected with a connector F; and a second water pump connecting joint G, a heating element and a heat exchanger of the air conditioning system loop are connected with each other.

After the structure is adopted, the multi-channel cooling valve is connected with a cooling system of the electric automobile, and can realize switching among a driving system, an air conditioning system loop and a power battery system cooling loop. The switching between different circulation loops is realized by controlling the flow direction of the cooling liquid. The multi-channel cooling valve simplifies the structure of the cooling system of the electric automobile, can be connected with three different loops of a driving system, an air conditioning system loop and a power battery system cooling loop through one cooling valve, and omits a plurality of control valves which are required to independently control each loop in the existing structure, so that the overall structure of the cooling system is optimized, the cost of the plurality of control valves can be reduced, the installation space can be saved and simplified, the installation procedure is simplified, the layout of pipelines is reduced, and the installation of the whole cooling system is more convenient. Especially, adopt a multichannel cooling valve directly to replace a plurality of control valves, can reduce the output of power, the energy saving, promote the continuation of the journey mileage of car, link together actuating system, air conditioning system return circuit and power battery system cooling circuit simultaneously, utilize the heat that driving motor and battery produced directly to heat for the car in, further the energy saving, accelerate the efficiency of cooling or heating, promote cooling or heating performance, the improvement of performance means the reduction of spare part work power consumption, energy utilization to electric automobile has very big promotion, further promote the continuation of the journey mileage of whole car.

Drawings

Fig. 1 is a perspective view of a valve body according to a first embodiment of the present invention.

Fig. 2 is a schematic sectional view of the upper layer of the valve body according to the first embodiment of the present invention.

Fig. 3 is a schematic sectional view of the lower layer of the valve body according to the first embodiment of the present invention.

Fig. 4 is a sectional view showing a first usage state of an upper layer of the valve body according to the first embodiment of the present invention.

Fig. 5 is a sectional view showing a first usage state of a lower layer of a valve body according to the first embodiment of the present invention.

Fig. 6 is a schematic view of a first connection state of the first embodiment of the present invention and a cooling system of an automobile.

Fig. 7 is a sectional view showing a second use state of the upper layer of the valve body according to the first embodiment of the present invention.

Fig. 8 is a sectional view showing a second use state of the lower layer of the valve body according to the first embodiment of the present invention.

Fig. 9 is a schematic view of a second connection state of the first embodiment of the present invention with a cooling system of an automobile.

Fig. 10 is a sectional view showing a third use state of the upper layer of the valve body according to the first embodiment of the present invention.

Fig. 11 is a sectional view showing a third usage state of the lower layer of the valve body according to the first embodiment of the present invention.

Fig. 12 is a schematic view showing a third connection state of the first embodiment of the present invention to a cooling system of an automobile.

Fig. 13 is a sectional view showing a fourth use state of the upper layer of the valve body according to the first embodiment of the present invention.

Fig. 14 is a sectional view showing a fourth usage state of the lower valve body layer according to the first embodiment of the present invention.

Fig. 15 is a schematic view showing a fourth connection state of the first embodiment of the present invention to a cooling system of an automobile.

Fig. 16 is a cross-sectional view showing a fifth use state of the upper layer of the valve body according to the first embodiment of the present invention.

Fig. 17 is a cross-sectional view showing a fifth usage state of the lower layer of the valve body according to the first embodiment of the present invention.

Fig. 18 is a schematic view showing a fifth connection state of the first embodiment of the present invention to a cooling system of an automobile.

Fig. 19 is a sectional view showing a sixth use state of the upper layer of the valve body according to the first embodiment of the present invention.

Fig. 20 is a sectional view showing a sixth usage state of the lower layer of the valve body according to the first embodiment of the present invention.

Fig. 21 is a diagram illustrating a sixth connection state of the first embodiment of the present invention with a cooling system of an automobile.

Fig. 22 is a sectional view showing a seventh usage state of the upper layer of the valve body according to the first embodiment of the present invention.

Fig. 23 is a sectional view showing a seventh usage state of the lower layer of the valve body according to the first embodiment of the present invention.

Fig. 24 is a diagram illustrating a seventh connection state of the first embodiment of the present invention with a cooling system of an automobile.

Fig. 25 is a combined perspective view of a valve body and a housing according to the second embodiment of the present invention.

Fig. 26 is a combined side view of a valve body and housing of the second embodiment of the invention.

Fig. 27 is a schematic sectional view of the upper layer of the combination of the housing and the valve body according to the second embodiment of the present invention.

Fig. 28 is a lower sectional view of the housing and valve body combination of the second embodiment of the present invention.

Fig. 29 is a sectional view showing a first use state of an upper layer of a valve body according to a second embodiment of the present invention.

Fig. 30 is a sectional view showing a first usage state of a lower layer of a valve body according to a second embodiment of the present invention.

Fig. 31 is a schematic view showing a first connection state of the second embodiment of the present invention to a cooling system of an automobile.

Fig. 32 is a sectional view showing a second use state of the upper layer of the valve body according to the second embodiment of the present invention.

Fig. 33 is a sectional view showing a lower layer of a valve body in a second use state according to the second embodiment of the present invention.

Fig. 34 is a schematic view showing a second connection state of the second embodiment of the present invention to a cooling system of an automobile.

Fig. 35 is a sectional view showing a third state of use of the upper layer of the valve body according to the second embodiment of the present invention.

FIG. 36 is a sectional view showing a third state of use of the lower layer of the valve body according to the second embodiment of the present invention.

Fig. 37 is a schematic view showing a third connection state of the second embodiment of the present invention to a cooling system of an automobile.

Fig. 38 is a sectional view showing a fourth use state of the upper layer of the valve body according to the second embodiment of the present invention.

Fig. 39 is a sectional view showing a fourth usage state of the lower layer of the valve body according to the second embodiment of the present invention.

Fig. 40 is a diagram illustrating a fourth connection state of the second embodiment of the present invention with a cooling system of an automobile.

Fig. 41 is a sectional view showing a fifth use state of the upper layer of the valve body according to the second embodiment of the present invention.

Fig. 42 is a cross-sectional view showing a fifth use state of the lower layer of the valve body according to the second embodiment of the present invention.

Fig. 43 is a schematic view showing a fifth connection state of the second embodiment of the present invention to a cooling system of an automobile.

Fig. 44 is a sectional view showing a sixth use state of the upper layer of the valve body according to the second embodiment of the present invention.

Fig. 45 is a sectional view showing a sixth use state of the lower layer of the valve body according to the second embodiment of the present invention.

Fig. 46 is a diagram illustrating a sixth connection state of the second embodiment of the present invention to a cooling system of an automobile.

Fig. 47 is a sectional view showing a seventh usage state of the upper layer of the valve body according to the second embodiment of the present invention.

Fig. 48 is a sectional view showing a seventh usage state of the lower layer of the valve body according to the second embodiment of the present invention.

Fig. 49 is a diagram illustrating a seventh connection state of the second embodiment of the present invention with a cooling system of an automobile.

Fig. 50 is a sectional view showing an eighth usage state of the upper layer of the valve body according to the second embodiment of the present invention.

Fig. 51 is a sectional view showing an eighth usage state of the lower layer of the valve body according to the second embodiment of the present invention.

Fig. 52 is a schematic view showing an eighth connection state of the second embodiment of the present invention to a cooling system of an automobile.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus are not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The invention discloses a multi-channel cooling valve for an electric automobile cooling system, which comprises a cylindrical valve body and a shell matched with the bottom surface and the periphery of the valve body; the valve body is divided into an upper layer and a lower layer, the upper layer of the valve body is provided with three upper channels, the lower layer of the valve body is provided with three lower channels, the upper channels and the lower channels are arranged in a staggered manner, the valve body is fixedly matched with an actuator of an automobile, and the actuator can drive the valve body to synchronously rotate when rotating; the periphery at the valve body is established to the shell cover, the interval is provided with six at least joints that communicate the valve body on the shell, six at least joints correspond actuating system among the car cooling system, air conditioning system return circuit and battery system cooling circuit's inlet and liquid outlet in a plurality of joints, the height that connects is more than or equal to the distance between passageway top surface and the lower passageway bottom surface on the valve body, when making the valve body rotate, through the last passageway of valve body or the lower passageway with the corresponding articulate on the shell, make-and-break and the switching between the three return circuits of actuating system, air conditioning system return circuit and battery system cooling circuit among the control electric automobile.

As shown in fig. 3, 6, 9, 12, 15, 18, 21, 24, 31, 34, 37, 40, 43, 46, 49 and 52, the electric vehicle cooling system may include a drive system 10, an air conditioning system circuit 20 and a battery system cooling circuit 30. The drive system 10 may include a first water pump 11, a drive motor 12, and a radiator 13 connected in series via a line a. The air conditioning system loop 20 may include a second water pump 21, a heating element 22, and a heat exchanger 23 connected in series via a line B. The battery system cooling circuit 30 may include a third water pump 31, a battery 32, and a cooler 33 connected in series by a line C, with a coolant in a line A, B, C.

As shown in fig. 1 to 24, a first embodiment of a multi-channel cooling valve 40 of the present invention comprises a cylindrical valve body 5 and a housing 6 fitted on the bottom surface and the periphery of the valve body 5, wherein the top end of the valve body 5 is fixedly fitted with an automobile actuator (electrically or manually); the valve body 5 is divided into an upper layer 51 and a lower layer 52, the upper layer of the valve body is provided with three

upper channels

5A, 5B and 5C, the lower layer 52 of the valve body 5 is provided with three

lower channels

5D, 5E and 5F, the three

upper channels

5A, 5B and 5C of the upper layer 51 and the three

lower channels

5D, 5E and 5F of the lower layer 52 are arranged in a staggered manner, and the top end of the valve body 5 is fixedly matched with an actuator (not shown) of an automobile; the housing 6 is sleeved at the bottom end and the periphery of the valve body 5, and seven

connectors

6A, 6B, 6C, 6D, 6E, 6F and 6G communicated with the valve body 5 are arranged at intervals in the housing 5 in the embodiment.

A first water pump 11 of the driving system 10 is connected with a joint 6A of the shell 6, a driving motor 12 is connected with the first water pump 11, a three-way joint 14 is arranged between the driving motor 12 and a radiator 13, the three-way joint 14 is connected with the driving motor 12, the radiator 13 and a joint 6C, and the radiator 13 is connected with a joint 6B; a third water pump 31 of the battery system cooling circuit 30 is connected with a joint 6D, a battery 32 is connected with a third motor 31, a three-way joint 34 is arranged between the battery 32 and a cooler 33, the three-way joint 34 is respectively connected with the battery 32, a three-way valve 35 and the cooler 33, and the three-way valve 35 is connected with a joint 6E; the second water pump 21 of the air conditioning system circuit 20 is connected to the joint 6F, the heating element 22 is connected to the second water pump 21, and the heat exchanger 23 is connected to the joint 6G. The height of the

joints

6A, 6B, 6C, 6D, 6E, 6F and 6G is larger than or equal to the distance between the top surface of the upper channel and the bottom surface of the lower channel of the valve body 5, so that when the valve body 5 rotates, the upper channel or the

lower channel

5A, 5B and 5C of the valve body 5 is communicated with the corresponding joints on the shell 6, and the on-off and switching among the cooling systems are controlled.

Fig. 4 to 24 are diagrams showing different states of use between the cooling valve 40 and the three circulation circuits of the driving system 10, the air conditioning system circuit 20 and the battery system cooling circuit 30 according to the first embodiment of the present invention, in which a thick solid line indicates a heating state, a two-dot chain line indicates a cooling state, and thin solid lines and broken lines indicate non-communication states. Depending on the state of the vehicle, the same element, in different states, may be a heat absorbing element or a heat dissipating element, for example: when the electric vehicle is not started for a long time, the drive motor 12 is in a cooling state, which is currently a heat-absorbing state, and a state when the drive motor 12 is operated is a heat-dissipating state.

As shown in fig. 4 to 6, when the actuator drives the valve body 5 to rotate to the first state, all three

upper channels

5A, 5B, and 5C of the upper layer 51 of the valve body 5 shown in fig. 4 are conducted, wherein the upper channel 5A communicates with the joint 6A and the joint 6B, i.e., the upper channel 5A communicates with the driving system 10, the upper channel 5B communicates with the joint 6G and the joint 6F, i.e., the upper channel 5B communicates with the air conditioning system loop 20, and the upper channel 5C communicates with the

joints

6D and 6E, i.e., the upper channel 5C communicates with the battery system cooling loop 30; as shown in fig. 5, the three

lower channels

5D, 5E, and 5F of the lower layer 52 are closed, and at this time, as shown in fig. 6, the driving system 10, the air conditioning system circuit 20, and the battery system cooling circuit 30 form three independent circulation circuits that are not affected by each other, and each circuit can be individually controlled according to specific requirements.

As shown in fig. 7 to 9, when the actuator drives the valve body 5 to rotate to the second state, as shown in fig. 7, all of the three

upper channels

5A, 5B, and 5C of the upper layer 51 of the valve body 5 are also conducted, at this time, the upper channel 5A communicates with the

connectors

6C and 6D, that is, the upper channel 5A communicates with the driving system 10 and the battery system cooling circuit 30, the upper channel 5B communicates with the

connectors

6A and 6G, that is, the upper channel 6B communicates with the driving system 10 and the air conditioning system circuit 20, and the upper channel 5C communicates with the

connectors

6E and 6F, that is, the upper channel 5C communicates with the battery system cooling circuit 30 and the air conditioning system circuit 20; as shown in fig. 8, the three

lower ducts

5D, 5E, and 5F of the lower floor 52 are closed, and at this time, as shown in fig. 9, the driving system 10, the air conditioning system circuit 20, and the battery system cooling circuit 30 form a series circuit of independent cycles, so that the waste heat of the driving motor 12 and the battery 32 can be used to heat the interior of the vehicle.

As shown in fig. 10 to 12, when the actuator drives the valve body 5 to rotate to the third state, the three

upper passages

5A, 5B, 5C of the upper layer 51 of the valve body 5 are closed as shown in fig. 10, all the three

lower passages

5D, 5E, 5F of the lower layer 52 of the valve body 5 are conducted as shown in fig. 11, the lower passage 5D communicates with the joint 6D and the joint 6E, the lower passage 5E communicates with the joint 6C and the joint 6F, and the lower passage 5F communicates with the joint 6A and the joint 6G; as shown in fig. 12, in this case, the lower duct 5D connects the battery system cooling circuit 30 separately to form a single battery system cooling circuit 3 circulation circuit, and the

lower ducts

5E and 5F connect the driving system 10 and the air conditioning system circuit 20, and connect the driving system 10 and the air conditioning system circuit 20 in series to form a circulation circuit, so that the waste heat of the motor can be used to heat the interior of the vehicle.

As shown in fig. 13 to 15, when the actuator drives the valve body 5 to rotate to the fourth state, the three

upper passages

5A, 5B, 5C of the upper layer 51 of the valve body 5 are closed as shown in fig. 13, all the three

lower passages

5D, 5E, 5F of the lower layer 52 of the valve body 5 are conducted as shown in fig. 14, the lower passage 5D communicates with the joint 6C and the joint 6D, the lower passage 5E communicates with the joint 6A and the joint 6E, and the lower passage 5F communicates with the joint 6G and the joint 6F; as shown in fig. 15, in this case, the

lower ducts

5D and 5E connect the driving system 10 and the battery system cooling circuit 30 in series to form a circulation circuit, and use the waste heat of the motor to heat the battery, while the lower duct 5F forms the air conditioning system circuit 20 into a single circulation circuit.

As shown in fig. 16 to 18, when the actuator drives the valve body 5 to rotate to the fifth state, the three

upper passages

5A, 5B, 5C of the upper layer 51 of the valve body 5 are closed as shown in fig. 16, all the three

lower passages

5D, 5E, 5F of the lower layer 52 of the valve body 5 are communicated as shown in fig. 17, the lower passage 5D communicates with the joint 6B and the joint 6D, the lower passage 5E communicates with the joint 6A and the joint 6E, and the lower passage 5F communicates with the joint 6G and the joint 6F; as shown in fig. 18, in this case, the

lower ducts

5D and 5E connect the drive system 10 and the battery system cooling circuit 30 in series to form a single circulation circuit, the drive motor 12 and the battery 32 are cooled by the radiator, and the air conditioning system circuit 20 is formed as a single circulation circuit by the lower duct 5F.

As shown in fig. 19 to 21, when the actuator drives the valve body 5 to rotate to the sixth state, the three

upper passages

5A, 5B, 5C of the upper layer 51 of the valve body 5 are closed as shown in fig. 19, all the three

lower passages

5D, 5E, 5F of the lower layer 52 of the valve body 5 are communicated as shown in fig. 20, the lower passage 5D communicates with the joint 6B and the joint 6D, the lower passage 5E communicates with the joint 6A and the joint 6E, and the lower passage 5F communicates with the joint 6G and the joint 6F; as shown in fig. 21, in this case, the

lower ducts

5D and 5E connect the drive system 10 and the battery system cooling circuit 30 in series to form a single circulation circuit, the drive motor 12 and the battery 32 are cooled by the radiator and cooler 33, and the air conditioning system circuit 20 is formed as a single circulation circuit by the lower duct 5F.

As shown in fig. 22 to 24, when the actuator drives the valve body 5 to rotate to the seventh state, the three

upper passages

5A, 5B, 5C of the upper layer 51 of the valve body 5 are closed as shown in fig. 22, all the three

lower passages

5D, 5E, 5F of the lower layer 52 of the valve body 5 are communicated as shown in fig. 23, the lower passage 5D communicates with the joint 6A and the joint 6C, the lower passage 5E communicates with the joint 6G and the joint 6D, and the lower passage 5F communicates with the joint 6E and the joint 6F; as shown in fig. 24, in this case, the lower path 5D connects the drive system 10 in a single circulation circuit, and the

lower paths

5E and 5F connect the air conditioning system circuit 20 and the battery system cooling circuit 30 in series in a circulation circuit, and the battery 32 can be heated by the heating element 23.

Fig. 25 to 52 show a second embodiment of a multi-channel cooling valve 40 according to a second embodiment of the present invention, which includes a cylindrical valve body 5 and a housing 6 fitted on the bottom surface and the outer periphery of the valve body 5, wherein the top end of the valve body 5 is fixedly fitted with an automotive actuator (electrically or manually); the valve body 5 is divided into an upper layer 51 and a lower layer 52, the upper layer of the valve body is provided with three

upper channels

5A, 5B and 5C, the lower layer 52 of the valve body 5 is provided with three

lower channels

5D, 5E and 5F, the three

upper channels

5A, 5B and 5C of the upper layer 51 and the three

lower channels

5D, 5E and 5F of the lower layer 52 are arranged in a staggered manner, and the top end of the valve body 5 is fixedly matched with an actuator (not shown) of an automobile; the shell 6 is sleeved at the bottom end and the periphery of the valve body 5, and the shell 5 is provided with eight

connectors

6A, 6B, 6C, 6D, 6E, 6F, 6G and 6H communicated with the valve body 5 at intervals in the embodiment.

A first water pump 11 of the driving system 10 is connected with a joint 6A of the shell 6, a driving motor 12 is connected with the first water pump 11, a three-way joint 14 is arranged between the driving motor 12 and a radiator 13, the three-way joint 14 is connected with the driving motor 12, the radiator 13 and a joint 6B, and the radiator 13 is connected with a joint 6C; a third water pump 31 of the battery system cooling circuit 30 is connected with a joint 6D, a battery 32 is connected with a third motor 31, a three-way joint 34 is arranged between the battery 32 and a cooler 33, the three-way joint 34 is respectively connected with the battery 32, the joint 6E and the cooler 33, and the cooler 33 is connected with a joint 6F; the second water pump 21 of the air conditioning system circuit 20 is connected to the joint 6G, the heating element 22 is connected to the second water pump 21, and the heat exchanger 23 is connected to the joint 6H. The height of the

joints

6A, 6B, 6C, 6D, 6E, 6F, 6G and 6H is larger than or equal to the distance between the top surface of the upper channel and the bottom surface of the lower channel of the valve body 5, so that when the valve body 5 rotates, the upper channel or the lower channel of the valve body 5 is communicated with the corresponding joint on the shell 6, and the on-off and switching among the cooling systems are controlled.

Fig. 29 to 52 are different usage state diagrams of the cooling valve 40 and three circulation circuits of the drive system 10, the air conditioning system circuit 20, and the battery system cooling circuit 30 in the second embodiment, in which a thick solid line indicates a heating state, a two-dot chain line indicates a cooling state, and a thin solid line and a broken line indicate a non-communication state. Depending on the state of the vehicle, the same element, in different states, may be a heat absorbing element or a heat dissipating element, for example: when the electric vehicle is not started for a long time, the drive motor 12 is in a cooling state, which is currently a heat-absorbing state, and a state when the drive motor 12 is operated is a heat-dissipating state.

As shown in fig. 29 to 31, when the actuator drives the valve body 5 to rotate to the first state, as shown in fig. 29, all of the three

upper passages

5A, 5B, and 5C of the upper layer 51 of the valve body 5 are conducted, wherein the upper passage 5A communicates with the connector 6A and the connector 6C, that is, the upper passage 5A communicates with the driving system 10, the upper passage 5B communicates with the connector 6D and the connector 6E, that is, the upper passage 5B communicates with the third water pump 31 and the battery 32 of the battery system cooling circuit 30 to heat the battery 32, and the upper passage 5C communicates with the connector 6G and the connector 6H, that is, the upper passage 5C communicates with the air conditioning system circuit 20; while the three

lower channels

5D, 5E, 5F of the lower layer 52 are closed as shown in fig. 30; in this case, as shown in fig. 31, the driving system 10, the air conditioning system circuit 20, and the battery system cooling circuit 30 form three independent circulation circuits that do not affect each other, and each circuit can be individually controlled according to specific requirements.

As shown in fig. 32 to 34, when the actuator drives the valve body 5 to rotate to the second state, as shown in fig. 32, all of the three

upper passages

5A, 5B, 5C of the upper layer 51 of the valve body 5 are conducted, wherein the upper passage 5A is communicated with the joint 6A and the joint 6C, that is, the upper passage 5A is communicated with the driving system 10, the upper passage 5B is communicated with the joint 6D and the joint 6F, that is, the upper passage 5B is communicated with the third water pump 31 and the cooler 33 of the battery system cooling circuit 30, the battery 32 is cooled by the cooler 33, and the upper passage 5C is communicated with the joint 6G and the joint 6H, that is, the upper passage 5C is communicated with the air conditioning system circuit 20; while the three

lower channels

5D, 5E, 5F of the lower layer 52 are closed as shown in fig. 33; in this case, as shown in fig. 34, the driving system 10, the air conditioning system circuit 20, and the battery system cooling circuit 30 form three independent circulation circuits that do not affect each other, and each circuit can be individually controlled according to specific needs.

As shown in fig. 35 to 37, when the actuator drives the valve body 5 to rotate to the third state, as shown in fig. 35, all of the three

upper channels

connectors

6B and 6D, that is, the upper channel 5A communicates with the driving system 10 and the battery system cooling circuit 30, the upper channel 5B communicates with the connector 6E and the connector 6G, that is, the upper channel 6B communicates with the driving system 10 and the air conditioning system circuit 20, and the upper channel 5C communicates with the

connectors

6G and 6A, that is, the upper channel 5C communicates with the battery system cooling circuit 30 and the air conditioning system circuit 20; as shown in fig. 36, the three

lower ducts

5D, 5E, and 5F of the lower floor 52 are closed, and at this time, as shown in fig. 37, the driving system 10, the air conditioning system circuit 20, and the battery system cooling circuit 30 form a series circuit of independent cycles, so that the waste heat of the driving motor 12 and the battery 32 can be used to heat the interior of the vehicle.

As shown in fig. 38 to 40, when the actuator drives the valve body 5 to rotate to the fourth state, as shown in fig. 38, the three upper passages 5A, 5B, and 5C of the upper layer 51 of the valve body 5 are closed, as shown in fig. 39, the three lower passages 5D, 5E, and 5F of the lower layer 52 of the valve body 5 are all communicated, and the lower passage 5D is communicated with the joint 6D and the joint 6E, that is, the lower passage 5D is communicated with the third water pump 31 and the battery 32 of the battery system cooling circuit 30, so as to heat the battery 32; the lower channel 5E is communicated with the joint 6B and the joint 6G, and the lower channel 5F is communicated with the joint 6A and the joint 6H; as shown in fig. 40, at this time, the lower passage 5D connects the battery system cooling circuit 30 separately to form a single battery system cooling circuit 3 circulation circuit for heating the battery, and the lower passages 5E and 5F connect the driving system 10 and the air conditioning system circuit 20, connect the driving system 10 and the air conditioning system circuit 20 in series to form a circulation circuit, so as to use the motor waste heat to heat the interior of the vehicle.

As shown in fig. 41 to 43, when the actuator rotates the valve body 5 to the fifth state, the three

upper passages

5A, 5B, 5C of the upper layer 51 of the valve body 5 are closed as shown in fig. 41; as shown in fig. 42, all of the three

lower passages

5D, 5E, 5F of the lower layer 52 of the valve body 5 are open, the lower passage 5D communicates with the joint 6B and the joint 6D, the lower passage 5E communicates with the joint 6A and the joint 6E, and the lower passage 5F communicates with the joint 6G and the joint 6H; as shown in fig. 43, in this case, the

lower ducts

5D and 5E connect the driving system 10 and the battery system cooling circuit 30 in series to form a circulation circuit, and heat the battery 32 by using the residual heat of the driving motor 12, while the lower duct 5F forms the air conditioning system circuit 20 into a single circulation circuit.

As shown in fig. 44 to 46, when the actuator drives the valve body 5 to rotate to the sixth state, as shown in fig. 44, the three

upper passages

5A, 5B, 5C of the upper layer 51 of the valve body 5 are closed, as shown in fig. 45, all of the three

lower passages

5D, 5E, 5F of the lower layer 52 of the valve body 5 are conducted, the lower passage 5D communicates with the joint 6B and the joint 6D, the lower passage 5E communicates with the joint 6A and the joint 6E, and the lower passage 5F communicates with the joint 6G and the joint 6H; as shown in fig. 46, in this case, the

lower ducts

As shown in fig. 47 to 49, when the actuator drives the valve body 5 to rotate to the seventh state, the three

upper passages

5A, 5B, 5C of the upper layer 51 of the valve body 5 are closed as shown in fig. 47, all the three

lower passages

5D, 5E, 5F of the lower layer 52 of the valve body 5 are communicated as shown in fig. 48, the lower passage 5D communicates with the joint 6C and the joint 6D, the lower passage 5E communicates with the joint 6A and the joint 6F, and the lower passage 5F communicates with the joint 6G and the joint 6H; as shown in fig. 49, in this case, the

lower ducts

As shown in fig. 50 to 52, when the actuator drives the valve body 5 to rotate to the eighth state, the three

upper passages

5A, 5B, 5C of the upper layer 51 of the valve body 5 are closed as shown in fig. 50; as shown in fig. 51, all of the three

lower passages

5D, 5E, 5F of the lower layer 52 of the valve body 5 are open, the lower passage 5D communicates with the joint 6E and the joint 6G, the lower passage 5E communicates with the joint 6D and the joint 6H, and the lower passage 5F communicates with the joint 6A and the joint 6B; as shown in fig. 52, in this case, the lower path 5F connects the drive system 10 to form a single circulation circuit, and the

lower paths

5D and 5E connect the air conditioning system circuit 20 and the battery system cooling circuit 30 in series to form a circulation circuit, so that the battery 32 can be heated by the heating element 23.

The main difference between the first embodiment and the second embodiment is that the number of connectors on the housing 6 is different, and the eight connectors of the second embodiment can realize the switching of different working modes between the three circulation loops, and particularly in the battery system cooling loop 30, the battery can be communicated with the connectors or the cooler can be communicated with the connectors by connecting the corresponding connectors, so as to realize the heating or cooling of the battery, while in the first embodiment, a three-way valve 35 is required to be externally connected, and the connectors are communicated with the battery 32 or the cooler 33 by switching the three-way valve 35, so as to realize the heating or cooling of the battery.

The multi-channel cooling valve 40 is connected with a cooling system of an electric automobile, and can realize switching among the driving system 10, the air conditioning system loop 20 and the power battery system cooling loop 30. The switching between different circulation loops is realized by controlling the flow direction of the cooling liquid. The multi-channel cooling valve simplifies the structure of the cooling system of the electric automobile, and can be connected with three different loops of the driving system 10, the air conditioning system loop 20 and the power battery system cooling loop 30 through one cooling valve 40, so that a plurality of control valves for independently controlling each loop in the existing structure are omitted, the overall structure of the cooling system is optimized, the cost of a plurality of control valves is reduced, the installation space is saved and simplified, the installation procedure is simplified, the arrangement of pipelines is reduced, and the installation of the whole cooling system is more convenient. Especially, adopt a multichannel cooling valve 40 directly to replace a plurality of control valves, can reduce the output of power, the energy saving, link together actuating system 10, air conditioning system return circuit 20 and power battery system cooling circuit 30 simultaneously, utilize the heat that driving motor and battery produced directly for the interior heating of car, further the energy saving, accelerate the efficiency of cooling or heating, promote cooling or heating performance, the improvement of performance means the reduction of spare part work power consumption, have very big promotion to electric automobile's energy utilization ratio, indirectly promote the continuation of the journey mileage of whole car.

The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present invention.

Claims

1. A multi-channel cooling valve, comprising:

2. The multi-channel cooling valve of claim 1, wherein: the number of the upper channels and the number of the lower channels of the valve body are respectively three.

3. The multi-channel cooling valve of claim 2, wherein: the three upper channels of the valve body are any one or any combination of arc-shaped grooves penetrating through the side wall of the valve body or arc-shaped channels with openings at two ends; the three lower channels of the valve body are any one or any combination of arc-shaped channels with openings at two ends, wherein the arc-shaped grooves penetrating through the side wall of the valve body are provided with the arc-shaped channels.

4. An electric automobile cooling system which characterized in that: the cooling valve comprises a valve body and a shell, wherein the valve body is cylindrical and is divided into an upper layer and a lower layer, the upper layer of the valve body is provided with three upper channels, the lower layer of the valve body is provided with three lower channels, the upper channels and the lower channels are arranged in a staggered manner, the valve body is fixedly matched with an actuator of an automobile, and the actuator can drive the valve body to synchronously rotate when rotating; the shell cooperation is in the periphery of valve body, and the interval is provided with six at least joints that communicate the valve body on the shell, connect and correspond inlet and the liquid outlet of connecting actuating system, air conditioning system return circuit and battery system cooling circuit, and the height that connects is more than or equal to the distance between passageway top surface and the lower passageway bottom surface on the valve body, when making the valve body rotate, through the last passageway of valve body or the lower passageway with the corresponding articulate on the shell, break-make and switching between the three return circuit of actuating system, air conditioning system return circuit and battery system cooling circuit among the control electric automobile.

5. The electric vehicle cooling system of claim 4, wherein: the three upper channels of the valve body are any one or any combination of arc-shaped grooves penetrating through the side wall of the valve body or arc-shaped channels with openings at two ends; the three lower channels of the valve body are any one or any combination of arc-shaped channels with openings at two ends, wherein the arc-shaped grooves penetrating through the side wall of the valve body are provided with the arc-shaped channels.

6. The electric vehicle cooling system according to claim 4 or 5, characterized in that: the driving system comprises a first water pump, a driving motor and a radiator which are connected in series through a pipeline; the air conditioning system loop comprises a second water pump, a heating element and a heat exchanger which are connected in series through pipelines; the battery system cooling loop comprises a third water pump, a battery and a cooler which are connected in series through pipelines, and cooling liquid is arranged in the pipelines.

7. The electric vehicle cooling system of claim 6, wherein: the cooling valve is characterized in that an outer shell of the cooling valve is provided with A, B, C, D, E, F joints, the joint A and the joint B are respectively connected with a first water pump and a radiator of a driving system through pipelines, the joint C and the joint D are respectively connected with a second water pump and a heat exchanger of an air conditioning system loop through pipelines, and the joint E and the joint F are respectively connected with a third water pump and a cooler of a battery system cooling loop through pipelines.

8. The electric vehicle cooling system of claim 6, wherein: the cooling valve is characterized in that A, B, C, D, E, F, G seven joints are arranged on a shell of the cooling valve, a first water pump of the driving system is connected with the joint A of the shell, a driving motor is connected with the first water pump, a three-way joint is arranged between the driving motor and the radiator and is connected with the driving motor, the radiator and the joint C, and the radiator is connected with the joint B; a third water pump of the battery system cooling loop is connected with a joint D, the battery is connected with a third motor, a three-way joint is arranged between the battery and the cooler and is respectively connected with the battery, a three-way valve and the cooler, and the three-way valve is connected with a joint E; and a second water pump connecting joint F of the air conditioning system loop, a heating element connected with the second water pump, and a heat exchanger connecting joint G.

9. The electric vehicle cooling system of claim 6, wherein: a, B, C, D, E, F, G, H eight joints are arranged on a shell of the cooling valve, a first water pump of the driving system is connected with the joint A of the shell, a driving motor is connected with the first water pump, a three-way joint is arranged between the driving motor and the radiator and is connected with the driving motor, the radiator and the joint B, and the radiator is connected with the joint C; a third water pump of the battery system cooling loop is connected with a connector D, the battery is connected with a third motor, a three-way connector is arranged between the battery and the cooler, the three-way connector is respectively connected with the battery, a connector E and the cooler, and the cooler is connected with a connector F; and a second water pump connecting joint G, a heating element and a heat exchanger of the air conditioning system loop are connected with each other.