Cooling integrated pump and automobile cooling system thereof

Abstract

The invention discloses a cooling integrated pump and an automobile cooling system thereof. The cooling integrated pump comprises an integrated pump shell, a group of impeller structures and a driving speed regulation module, the integrated pump shell is used for bearing all parts and provided with a set of water pump inlets and a set of water pump outlets. A group of mutually independent water pump cavities are arranged in the integrated pump shell, and each water pump cavity is correspondingly communicated with one water pump inlet and one water pump outlet; each impeller is arranged in the corresponding water pump cavity; the driving speed regulation module comprises a driving motor and a speed regulation module which are connected, the speed regulation module comprises a group of transmission shafts connected with the impellers, and the group of transmission shafts are connected. The water pump is achieved through the same water pump shell and different transmission speed regulation modules, a high-power motor is used for driving waterway circulation of three cavities through the transmission speed regulation modules, one motor replaces three motors for driving, the cost can be reduced, and due to the structural change, the installation space can be reduced, the weight of the whole vehicle can be reduced, and energy consumption can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile cooling systems, in particular to a cooling integrated pump and an automobile cooling system thereof. Background Art

[0002] Currently, the cooling circuit of new energy vehicles is driven by one to four separate water pumps. Each water pump drives a water circuit separately, and each pump requires a separate interface for speed control and power supply. The structure is complex, occupies a relatively large space, is not conducive to layout, and has relatively high energy consumption. The overall weight is large, which is not conducive to the lightweight design of electric vehicles.

[0003] For example, patent CN 213322657U discloses an integrated electric water pump and electric vehicle, which include a motor, a first water pump, a second water pump and a motor controller. The first water pump and the second water pump are respectively integrated at both ends of the motor, the first water pump is used in the first cooling system, and the second water pump is used in the second cooling system; the first housing of the first water pump and the second housing of the second water pump are respectively connected to the opposite ends of the motor housing, the first impeller of the first water pump and the second impeller of the second water pump are respectively connected to the two ends of the motor shaft, realizing bidirectional output of the motor shaft, thereby meeting the needs of two cooling systems; its structure can only realize the integration of two water pumps, and cannot realize the integration of multiple water pumps, and this solution cannot realize the different speed requirements of the two water pumps. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the present invention provides a cooling integrated pump and an automobile cooling system thereof, so as to achieve the purpose of high integration of multiple water pumps and meet the requirements of different speeds.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A cooling integrated pump comprises an integrated pump housing, a set of impeller structures and a drive speed regulating module;

[0007] The integrated pump housing is used to carry various components. A set of water pump inlets and a set of water pump outlets are provided on the integrated pump housing. A set of independent water pump cavities are provided in the integrated pump housing, and each water pump cavity is connected to a water pump inlet and a water pump outlet.

[0008] Each impeller is arranged in a corresponding water pump cavity;

[0009] The driving speed regulating module includes a driving motor and a speed regulating module connected to each other. The speed regulating module includes a group of transmission shafts connected to each impeller, and the group of transmission shafts are connected to each other.

[0010] The water pump cavity has an arc-shaped structure, and a group of water pump cavities have the same volume.

[0011] The group of water pump inlets are arranged side by side on the top of the integrated pump housing, and the group of water pump outlets are arranged side by side on the side of the integrated pump housing.

[0012] The group of transmission shafts are arranged side by side and spaced apart.

[0013] Adjacent transmission shafts are connected via plastic transmission bars.

[0014] The driving speed regulating module includes a cavity cover plate, and the cavity cover plate and the side of the integrated pump housing are tightly matched to form each water pump cavity structure. The driving motor and the speed regulating module are integrated and arranged on the outside of the cavity cover plate.

[0015] The set of transmission shafts is arranged on the cavity cover plate, and the driving motor is connected to the corresponding transmission shaft of the cavity of the air-conditioning and heating system located in the middle position. The other two transmission shafts are the transmission shaft corresponding to the motor cooling cavity and the transmission shaft corresponding to the battery cooling cavity.

[0016] The other two transmission shafts are connected to the transmission shaft in the middle via plastic transmission rack belts with different transmission ratios.

[0017] A speed regulating module housing is provided on the outer side of the cavity cover plate, and each plastic transmission rack belt is provided in the speed regulating module housing.

[0018] A vehicle cooling system includes a vehicle control unit, a battery cooling water circuit, a motor cooling water circuit, and a vehicle air conditioning heater core water circuit. Each water circuit is provided with a control valve. The system also includes the cooling integrated pump, the drive motor, and the control valve, which are all connected to the vehicle control unit.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] The cooling integrated pump is rationally designed to achieve high integration of multiple water pumps. This is achieved through the same water pump housing and different transmission speed regulation modules. A high-power motor is used to drive the water circulation of the three cavities through the transmission speed regulation module. One motor replaces three motor drives to reduce costs. Structural changes can reduce installation space, reduce vehicle weight, and reduce energy consumption. Moreover, different water pump impeller speeds can be achieved according to needs, making it suitable for the cooling system of new energy vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The following is a brief description of the contents and symbols in the drawings of this specification:

[0022] Figure 1 This is a schematic diagram of the integrated pump structure of the present invention.

[0023] Figure 2 It is a schematic diagram of the driving structure and transmission structure of the present invention.

[0024] Figure 3The structure diagram of the speed regulating module of the application.

[0025] In the figure:

[0026] 1. water pump inlet of cooling integrated pump, 2. water pump outlet of cooling integrated pump, 3. water pump cavity, 4. integrated pump shell, 5. driving impeller, 6. motor drive shaft, 7. speed regulating module, 8. cavity cover plate, 9. driving motor, 10. motor cooling cavity corresponding drive shaft, 11. plastic transmission bar I, 12. cavity corresponding drive shaft of air conditioning and heating system, 13. plastic transmission bar II, 14. battery cooling cavity corresponding drive shaft. DETAILED DESCRIPTION

[0027] The specific embodiments of the application will be further described in detail below with reference to the accompanying drawings.

[0028] As Figures 1 to 3 shown, the cooling integrated pump comprises an integrated pump shell, a set of impeller structures and a driving speed regulating module; the integrated pump shell is used for bearing various components, and a set of water pump inlets and a set of water pump outlets are arranged on the integrated pump shell; a set of water pump cavities independent of each other are arranged in the integrated pump shell, each water pump cavity is correspondingly connected with one water pump inlet and one water pump outlet; each impeller is arranged in the corresponding water pump cavity, and each impeller is arranged corresponding to a set of water pump inlets and water pump outlets; the driving speed regulating module comprises a driving motor and a speed regulating module connected with each other, the speed regulating module comprises a set of drive shafts connected with each impeller.

[0029] The driving motor is a high-power motor, and one high-power motor is used to drive the water circulation of three cavities through the transmission speed regulating module; the driving motor is connected with the speed regulating module through the main drive shaft and the internal plastic gear, the speed regulating module comprises a structure transmission with an adjustable rotation speed ratio, and the torque is transmitted to the three driving water pump impellers; the three impellers are respectively installed in three water pump cavities with different rotation speed requirements. The integrated water pump has three water inlets, three water outlets and three cavity impellers, and the integrated water pump shell comprises three cavities. The change in structure can reduce the installation space, reduce the weight of the whole vehicle and reduce the energy consumption.

[0030] The water pump cavity has a circular arc structure, and a set of water pump cavities have the same volume; preferably, the set of water pump cavities comprises three independent cavities, three cavities are formed in one shell, the three cavities have the same volume, and the impellers in the cavities have the same size and structure; the water inlet is opposite to the impeller, and the water outlet is located on the side of the impeller; the motor adopts a 135W high-power motor, which can drive three cavities to operate normally at the same time.

[0031] That is, a group of water pump inlets are arranged side by side at the top of the integrated pump shell, and a group of water pump outlets are arranged side by side at the side of the integrated pump shell; a group of transmission shafts are arranged side by side and spaced apart; the adjacent transmission shafts are connected through plastic transmission strips; and each unit is arranged transversely and side by side, so that the structure is compact.

[0032] The drive speed regulation module comprises a cavity cover plate, the cavity cover plate and the side of the integrated pump shell are tightly matched to form the water pump cavity structure of each unit, and the drive motor and the speed regulation module are integrally arranged outside the cavity cover plate. A group of transmission shafts are arranged on the cavity cover plate, the drive motor is connected with the transmission shaft corresponding to the cavity of the air conditioning and heating system located at the middle position, and the other two transmission shafts are respectively a transmission shaft corresponding to the motor cooling cavity and a transmission shaft corresponding to the battery cooling cavity.

[0033] The other two transmission shafts and the transmission shaft located at the middle are connected through plastic transmission rack strips with different transmission ratios, so that the rotating speeds of the impellers in the water pump cavities are different. The outside of the cavity cover plate is provided with a speed regulation module shell, and each plastic transmission rack strip is arranged in the speed regulation module shell, so that the structure is compact.

[0034] The drive motor and the speed regulation module are connected through a shaft and a plastic rack, the power torque is transmitted through the plastic rack shaft in the speed regulation module through a certain transmission ratio, the speed regulation module and the three impellers are connected through the transmission shaft assembly, and the cover plate and the shell tightly seal the impeller shaft in an integrated water pump cavity. In the application circuit, the water pipe and the water inlet and outlet are connected through a pipe clamp to drive the cooling circulation.

[0035] The cooling integrated pump has reasonable design, realizes high integration of multiple water pumps, is realized through one water pump shell and different transmission speed regulation modules, one high-power motor drives the water circulation of three cavities through the transmission speed regulation module, one motor replaces three motors to drive, cost is reduced, installation space is reduced, vehicle weight is reduced, and energy consumption is reduced; and different water pump impeller speeds can be realized according to requirements, and the cooling system is suitable for new energy vehicles.

[0036] The application further provides an automobile cooling system, which comprises an automobile control unit, a battery cooling water circuit, a motor cooling water circuit, an automobile air conditioning and heating core water circuit and the cooling integrated pump.

[0037] Three water pump cavities are integrated under a shell, the volume of each cavity is same, according to the flow resistance and flow demand of waterway, the battery cooling waterway, the motor cooling waterway and the automobile air conditioning warm air core waterway can be freely defined and combined. When the cooling system is connected to the heat dissipation demand of BMS, the integrated pump motor receives the signal instruction and enters the work, the motor and the battery waterway corresponding impeller will work according to the speed ratio. When the system needs to be heated, the TMM or VCU sends a PTC heating request, the integrated pump motor receives the signal instruction and enters the work, the battery and the air conditioning warm air core corresponding cavity impeller enters the working state.

[0038] Compared with a conventional water pump driving a cooling circulation loop, the product adopting the technical scheme of the patent can effectively reduce energy consumption; the length of the pipeline in the loop and the motor are reduced to reduce the cost; after integration, the installation points are reduced, which can be faster in automobile assembly; the product adopting the scheme can greatly reduce the volume, save considerable other part arrangement space for the layout of the front compartment, and be more suitable for compact vehicle models in the front compartment.

[0039] The preferred specific examples of the application are:

[0040] As shown in Figure 1 and Figure 2 The structure diagram of the integrated water pump of the whole cooling system is shown: the water pump inlets 1 of the three cooling integrated pumps are arranged side by side, the water pump outlets 2 of the three cooling integrated pumps are arranged side by side; there are three water inlets and outlets respectively corresponding to three different cooling circuits; there are three cavities in the integrated pump, the three cavities are same in size, the three water pump cavities 3 are arranged transversely and side by side; the integrated pump shell 4 is the overall shell of the water pump, bearing the whole integrated water pump parts, connecting various parts; a driving impeller 5 is arranged corresponding to each water pump cavity, the three impellers are same in size and structure, respectively corresponding to three cooling circuits; a corresponding transmission shaft is arranged corresponding to each impeller, the middle one is a motor transmission shaft 6, which is a main transmission shaft, connecting the motor and the warm air core impeller, the shaft is a one-to-one transmission, the transmission shaft structures corresponding to the motor cooling circuit and the battery cooling circuit are same; a speed regulation module 7 for distributing the rotating speeds of the three water pump cavities is integrated on the outside of the integrated pump shell; a cavity cover plate 8 for sealing the three cavities is arranged on one side of the water pump cavity, the connection between the cavity edge and the cover plate is sealed with a rubber ring; the cover plate is integrated with a driving motor 9

[0041] As shown in Figure 3The figure shows a schematic diagram of the speed control module of the cooling integrated pump; the drive shaft 10 corresponding to the motor cooling cavity, the drive shaft 12 corresponding to the air-conditioning and heating system cavity, and the drive shaft 14 corresponding to the battery cooling cavity are arranged side by side, and the drive shaft corresponding to the heating system cavity and the motor drive shaft are directly connected; the plastic transmission bar I11 between the motor cooling system drive shaft and the air-conditioning and heating system cavity drive shaft is used for two-axis transmission, and the transmission ratio is 14:10; the plastic transmission bar II13 between the battery cooling system cavity corresponding to the drive shaft and the air-conditioning and heating system cavity drive shaft is used for two-axis transmission, and the transmission ratio is 10:6.

[0042] The present invention integrates the water pump housing and water inlet and outlet into a one-piece structure. The cover plate and housing are fixedly connected by four bolts to form a sealed cavity structure. The water pump impeller and drive shaft are connected by a detachable assembly. Three drive shafts are located in the speed control module to fix and connect the water pump motor and the water pump impeller at both ends. This highly integrated structure occupies a relatively small space. Simultaneously, the present invention uses a single water pump drive motor to drive the impellers in the three water pump cavities. The speed of each impeller is distributed by the speed control module at a fixed transmission ratio to meet the requirements of different waterways.

[0043] The working state of this scheme is that the impeller rotates driven by the motor and then drives the water circulation. The specific movement process is as follows: Figure 1 The driving motor generates torque to drive the motor cooling cavity corresponding to the transmission shaft 10, the air conditioning and heating system cavity corresponding to the transmission shaft 12, and the battery cooling cavity corresponding to the transmission shaft 14 to make steering movements at a speed ratio of 6:10:14. The three transmission shafts drive the corresponding impellers respectively, and each impeller rotates in the corresponding water pump cavity to drive the water circulation.

[0044] The above is only an illustration of a preferred embodiment of the present invention. The above technical features can be arbitrarily combined to form multiple embodiments of the present invention.

[0045] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A cooling integrated pump, characterized in that: include: An integrated pump housing is used to carry various components, and a set of water pump inlets and a set of water pump outlets are provided on the integrated pump housing; A group of independent water pump cavities are provided in the integrated pump housing, and each water pump cavity is connected to a water pump inlet and a water pump outlet; A set of impeller structures, each impeller is arranged in a corresponding water pump cavity; The drive speed regulation module includes a drive motor and a speed regulation module connected to each other. The speed regulation module includes a group of transmission shafts connected to each impeller, and the group of transmission shafts are connected to each other.

2. The cooling integrated pump according to claim 1, characterized in that: The water pump cavity has an arc-shaped structure, and a group of water pump cavities have the same volume.

3. The cooling integrated pump according to claim 1, characterized in that: The group of water pump inlets are arranged side by side on the top of the integrated pump housing, and the group of water pump outlets are arranged side by side on the side of the integrated pump housing.

4. The cooling integrated pump according to claim 1, characterized in that: The group of transmission shafts are arranged side by side and spaced apart.

5. The cooling integrated pump according to claim 4, characterized in that: Adjacent transmission shafts are connected via plastic transmission bars.

6. The cooling integrated pump according to claim 4, characterized in that: The driving speed regulating module includes a cavity cover plate, and the cavity cover plate and the side of the integrated pump housing are tightly matched to form each water pump cavity structure. The driving motor and the speed regulating module are integrated and arranged on the outside of the cavity cover plate.

7. The cooling integrated pump according to claim 6, characterized in that: The set of transmission shafts is arranged on the cavity cover plate, and the driving motor is connected to the corresponding transmission shaft of the cavity of the air-conditioning and heating system located in the middle position. The other two transmission shafts are the transmission shaft corresponding to the motor cooling cavity and the transmission shaft corresponding to the battery cooling cavity.

8. The cooling integrated pump according to claim 7, characterized in that: The other two transmission shafts are connected to the transmission shaft in the middle via plastic transmission rack belts with different transmission ratios.

9. The cooling integrated pump according to claim 8, characterized in that: A speed regulating module housing is provided on the outer side of the cavity cover plate, and each plastic transmission rack belt is provided in the speed regulating module housing.

10. An automobile cooling system, comprising an automobile control unit, a battery cooling water circuit, a motor cooling water circuit, and an automobile air conditioning heater core water circuit, each of which is provided with a control valve, characterized in that: It also includes a cooling integrated pump as described in any one of claims 1 to 9, and the drive motor and the control valve are both connected to the vehicle control unit.

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