CN215772776U - High-efficiency high-power electronic water pump - Google Patents
High-efficiency high-power electronic water pump Download PDFInfo
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- CN215772776U CN215772776U CN202121637955.XU CN202121637955U CN215772776U CN 215772776 U CN215772776 U CN 215772776U CN 202121637955 U CN202121637955 U CN 202121637955U CN 215772776 U CN215772776 U CN 215772776U
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Abstract
The utility model discloses a high-efficiency high-power electronic water pump in the technical field of electronic water pumps, which comprises a shell, wherein a main liquid inlet and an auxiliary liquid inlet are formed in the shell; and the two ends of the cooling liquid flow channel are respectively communicated with the main liquid inlet and the auxiliary liquid inlet correspondingly, so that the cooling liquid in the auxiliary liquid inlet flows to the main liquid inlet under the action of the internal pressure of the casing. The utility model adopts a liquid cooling method to realize both motor heat dissipation and control panel heat dissipation, an auxiliary liquid inlet is added from the rear end of the shell, the motor and the control panel are used for cooling, and then the cooling liquid is circulated out through the high-pressure area of the impeller.
Description
Technical Field
The utility model relates to the technical field of electronic water pumps, in particular to a high-efficiency high-power electronic water pump.
Background
At present, in the field of new energy vehicles, an electronic water pump has gradually replaced a traditional mechanical water pump, so that coolant is conveyed for a vehicle thermal management system, most of heat generated by a vehicle driving motor, a battery and a control module is taken away, hot fluid is provided for a warm air heating system, the vehicle electric driving system is ensured to be in an optimal working temperature range, and the reliability and the safety of the new energy vehicle are improved.
The electronic water pump also has the heat dissipation requirement, and the current heat dissipation cooling methods for the electronic water pump mainly comprise three methods: the first method is a method for pouring heat dissipation glue into a motor cavity, but the glue pouring can cause the overall weight of the water pump to be greatly increased, and the cost is increased; the second method is a method of heat-conducting glue and a heat-radiating gasket, but the method of heat-conducting glue and the heat-radiating gasket is only suitable for a low-power electronic water pump and cannot meet the heat-radiating requirement of the high-power electronic water pump; the third is a wet rotor water path cooling method, but the wet rotor water path cooling needs to increase the air gap of the motor, the motor becomes large, the cost is high, meanwhile, the sectional area inside the rotor is small, the heat dissipation effect is not good, the volume of the cooling water jacket is large, the required cooling liquid is more, and the performance of the water pump is reduced more.
Disclosure of Invention
In view of this, an object of the present invention is to provide a high-efficiency and high-power electronic water pump, so as to solve the technical problem of poor heat dissipation effect of the conventional electronic water pump.
The technical scheme adopted by the utility model is as follows: a high efficiency high power electronic water pump comprising:
the shell is provided with a main liquid inlet and an auxiliary liquid inlet;
the cooling liquid runner is arranged on the shell and used for cooling the stator and/or the control panel in the shell, and two ends of the cooling liquid runner are respectively communicated with the main liquid inlet and the auxiliary liquid inlet correspondingly, so that the cooling liquid of the auxiliary liquid inlet flows to the main liquid inlet under the action of the internal pressure of the shell.
Furthermore, the casing comprises a main volute, a casing, a heat dissipation end cover and an auxiliary volute, the main volute is connected with the first end of the casing in a sealing mode, the heat dissipation end cover is connected with the inner side of the second end of the casing in a sealing mode, and the auxiliary volute is connected with the outer side of the second end of the casing in a sealing mode; and a cooling cavity for cooling the control panel arranged on the heat dissipation end cover is formed among the auxiliary volute, the shell and the heat dissipation end cover.
Furthermore, be equipped with the first coolant liquid passageway with main inlet intercommunication on the main spiral case, be equipped with the second coolant liquid passageway that is used for carrying out the cooling to the inboard stator of casing on the casing, first coolant liquid passageway, second coolant liquid passageway and cooling chamber communicate in proper order in order to form the coolant liquid runner.
Furthermore, the second cooling liquid channel is arranged in the side wall of the shell in a circular ring shape.
Further, the first cooling liquid channel is arranged in the side wall of the main volute in a fan shape.
Furthermore, the main liquid inlet and the auxiliary liquid inlet are respectively arranged at two axial ends of the casing.
Furthermore, the shell and the heat dissipation end cover are made of aluminum alloy.
Furthermore, the main volute and the auxiliary volute are made of plastics.
Further, a stator, a rotor and a rotating shaft are arranged in the shell, the stator is connected with the shell through a shrink fit process, the rotor is arranged on the rotating shaft, and two ends of the rotating shaft are respectively in rotating connection with the shell and the radiating end cover through bearings; and one end of the rotating shaft is connected with the shell in a rotating and sealing mode through a water seal structure.
Furthermore, a sealing gasket for preventing high-pressure cooling liquid in the machine shell from flowing into the cooling liquid flow channel is arranged between the main volute and the shell.
The utility model has the beneficial effects that:
1. the main liquid inlet and the auxiliary liquid inlet are respectively arranged at the two axial ends of the shell, the cooling liquid channel for cooling the stator and the control panel in the shell is arranged on the shell, and the two ends of the cooling liquid channel are respectively and correspondingly communicated with the main liquid inlet and the auxiliary liquid inlet so as to drive cooling liquid to flow from the auxiliary liquid inlet to the main liquid inlet through the internal pressure of the shell, thereby completing the cooling of the stator and the control panel in the shell.
2. The cooling liquid flow channel arranged on the shell simultaneously cools the control plate and the stator, so that the cooling efficiency is high; and hydraulic loss of hydraulic cooling is avoided, and the overall efficiency of the water pump is improved.
3. The utility model has simple structure, and the control board has large heat dissipation area, thus being beneficial to the heat dissipation of the control board and further improving the cooling efficiency; the stator heat dissipation area is large, heat dissipation of the motor is facilitated, and cooling efficiency of the motor is improved.
Drawings
FIG. 1 is a schematic diagram of the present invention;
fig. 2 is a schematic view of the heat and coolant flow paths of the present invention.
The reference numbers in the figures illustrate:
10-a main volute; 11-a main liquid inlet; 12-a first coolant channel; 13-a liquid inlet cavity;
20-a housing; 21-a second coolant channel;
30-a heat dissipation end cover;
40-an auxiliary volute; 41-an auxiliary liquid inlet; 42-a cooling chamber;
50-a control panel;
60-a stator;
70-a rotor;
80-a rotating shaft; 81-a bearing; 82-water seal structure; 83-an impeller;
90-sealing ring, 91 sealing gasket.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and are not intended to limit the present invention.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
In an embodiment, as shown in fig. 1 and fig. 2, a high-efficiency and high-power electronic water pump includes:
the cooling device comprises a machine shell, wherein a main liquid inlet 11 and an auxiliary liquid inlet 41 are arranged on the machine shell, and the main liquid inlet 11 and the auxiliary liquid inlet 41 are used for allowing cooling liquid to enter the machine shell from different parts;
and the cooling liquid flow channel is arranged on the shell and is used for cooling the stator 60 and/or the control panel 50 in the shell, and two ends of the cooling liquid flow channel are respectively communicated with the main liquid inlet 11 and the auxiliary liquid inlet 41 correspondingly, so that the cooling liquid of the auxiliary liquid inlet 41 flows to the main liquid inlet 11 under the action of the internal pressure of the shell.
The main liquid inlet 11 and the auxiliary liquid inlet 41 are respectively arranged at two axial ends of the casing, a cooling liquid channel for cooling the stator 60 and the control plate 50 in the casing is arranged on the casing, and the two ends of the cooling liquid channel are respectively correspondingly communicated with the main liquid inlet 11 and the auxiliary liquid inlet 41 so as to drive cooling liquid to flow from the auxiliary liquid inlet 41 to the main liquid inlet 11 through the internal pressure of the casing, thereby completing the cooling of the stator 60 and the control plate 50 in the casing.
In a specific embodiment, as shown in fig. 1, the casing includes a main volute 10, a casing 20, a heat-dissipating end cover 30 and an auxiliary volute 40, which are sequentially arranged; a main liquid inlet 11 is arranged on the main volute 10, the main volute 10 is connected with the left end of the shell 20 in a sealing mode through a sealing ring 90, and a liquid inlet cavity 13 for installing an impeller 83 is formed between the main volute 10 and the shell 20; the heat dissipation end cover 30 is arranged at the right end of the shell 20 and is hermetically connected with the inner side of the right end of the shell 20 through a sealing ring 90, an installation cavity for accommodating the stator 60, the rotor 70, the rotating shaft 80 and the control panel 50 is formed between the heat dissipation end cover 30 and the shell 20, and the control panel 50 is arranged on the heat dissipation end cover 30 through heat dissipation silicone grease, so that the heat of the control panel 50 is quickly transferred to the heat dissipation end cover 30; the auxiliary volute 40 is disposed at the right end of the housing 20 and is hermetically connected to the outer side of the right end of the housing 20 through a sealing ring 90, a cooling cavity 42 for cooling the control board 50 disposed on the heat dissipation end cover 30 is formed among the auxiliary volute 40, the housing 20 and the heat dissipation end cover 30, and an auxiliary liquid inlet 41 communicated with the cooling cavity 42 is disposed on the auxiliary volute 40 for allowing the cooling liquid to enter the cooling cavity 42.
The main volute 10 is provided with a first cooling liquid channel 12 communicated with the main liquid inlet 11, the housing 20 is provided with a second cooling liquid channel 21 used for cooling the stator 60 inside the housing 20, and the first cooling liquid channel 12, the second cooling liquid channel 21 and the cooling cavity 42 are sequentially communicated to form a cooling liquid flow channel. With this arrangement, by providing the first cooling liquid channel 12 on the main volute 10, providing the second cooling liquid channel 21 on the housing 20, and sequentially communicating the first cooling liquid channel 12, the second cooling liquid channel 21 and the cooling cavity 42, the cooling liquid can be driven by the high pressure in the liquid inlet cavity 13 to flow from the auxiliary liquid inlet 41 to the main liquid inlet 11 through the cooling liquid channel, and the cooling and heat dissipation of the stator 60 and the control board 50 are completed.
Preferably, a sealing gasket 91 is further provided between the main volute 10 and the housing 20. So set up, prevent through sealed pad 91 that the coolant liquid in the high pressure feed liquor chamber 13 from flowing into the coolant liquid runner to prevent the coolant liquid refluence, guarantee the cooling effect of preferred.
Preferably, the second coolant passage 21 is disposed in a circular ring shape in the side wall of the housing 20. By such arrangement, the contact area between the cooling liquid and the side wall of the housing 20 can be increased, and a better cooling and heat dissipation effect can be achieved.
Preferably, the first coolant passage 12 is provided in a fan shape in the side wall of the main scroll case 10. So set up, can increase the flow of coolant liquid in the coolant liquid runner to reach the cooling radiating effect of preferred.
In one embodiment, as shown in FIG. 1, the main liquid inlet 11 and the auxiliary liquid inlet 41 are disposed at two axial ends of the housing, respectively. So set up, be convenient for establish the coolant liquid runner on the casing, make the coolant liquid in the coolant liquid runner better to the stator 60 in the casing and the cooling effect of control panel 50 simultaneously.
In one embodiment, the housing 20 and the heat dissipating end cap 30 are made of aluminum alloy. So set up, the aluminum alloy is hot good conductor, and the radiating effect is better. The main volute 10 and the auxiliary volute 40 are made of plastic. With this arrangement, weight and cost can be reduced.
In one embodiment, as shown in fig. 1, a stator 60, a rotor 70 and a rotating shaft 80 are provided in the housing 20, and the stator 60 is coupled to the housing 20 through a shrink-fitting process; so set up for the stator 60 can laminate completely with the internal surface of casing 20, and the heat conduction is effectual. The rotor 70 is fixedly disposed on the rotating shaft 80, and both ends of the rotating shaft 80 are rotatably connected to the housing 20 and the heat dissipating end cap 30 through bearings 81, respectively. By adopting the double-bearing structure, the rotor 70 is more stable, and NVH (noise, vibration and harshness) is reduced; meanwhile, the axial direction has no play, namely, no axial abrasion, reduces parts such as ceramic gaskets, has no abrasion in the radial direction, and has the advantages of simple structure and low cost.
In one embodiment, as shown in fig. 1, one end of the rotating shaft 80 is connected to the housing 20 through a water seal structure 82 in a rotary sealing manner. By adopting the water seal structure 82, water does not need to enter the rotor 70, no hydraulic loss exists, and the arrangement of the isolation sleeve is reduced; the air gap volume of the motor can be reduced, so that the volume of the motor is reduced, the weight is light, and the cost is low.
As shown in fig. 2, the dotted arrows indicate the heat transfer direction, and the solid arrows indicate the coolant flow direction.
The heat dissipation end cover 30 is made of aluminum alloy and has good heat conduction performance, the control panel 50 is arranged on the heat dissipation end cover 30 and serves as a heating source, heat is transferred to the heat dissipation end cover 30 through heat dissipation silicone grease, and then the heat is transferred out through cooling liquid in the cooling cavity 42. Casing 20 is the aluminum alloy material, and thermal conductivity is good, and casing 20 and stator 60 adopt the technology of thermal jacket for stator 60 laminates with casing 20's surface energy completely, and the heat conduction is effectual, and stator 60 is the source that generates heat, and the coolant liquid in the second coolant liquid passageway 21 on casing 20 is gone out the heat transfer. The auxiliary volute 40 is matched with the casing 20, an auxiliary liquid inlet 41 is formed in the auxiliary volute 40, and the cooling liquid can flow into the casing from the auxiliary liquid inlet 41.
Designing a cooling circuit: the cooling liquid enters the casing from the auxiliary liquid inlet 41, passes through the cooling cavity 42 to take away heat of the control plate 50, passes through the second cooling liquid channel 21 on the casing 20 to take away heat of the motor, passes through the first cooling liquid channel 12 on the main volute 10 to flow to the main liquid inlet 11 of the main volute 10, and generates high pressure through the impeller 83 to circulate the cooling liquid.
Designing a water path: the cooling liquid enters the casing from the main liquid inlet 11 of the main volute 10, and high pressure is generated by the impeller 83 to circulate the cooling liquid out.
Compared with the prior art, the application has at least the following beneficial technical effects:
1. casing 20, water seal structure 82, heat dissipation end cover 30, sealing washer 90 form a confined installation cavity, and the coolant liquid can not flow into the installation cavity, and casing 20 and heat dissipation end cover 30 are the aluminum alloy material, can effectual shielded machine and control panel 50's radiation, are favorable to reducing EMC (electromagnetic compatibility).
2. The rotating shaft 80 is of a double-bearing structure, the bearing 81 is a high-rotating-speed mute bearing, one bearing 81 is assembled on the shell 20 and is in interference fit, the other bearing 81 is assembled on the heat dissipation end cover 30 and is in interference fit, the heat dissipation end cover 30 and the shell 20 are in interference fit, the concentricity is guaranteed, NVH is reduced, axial float of the rotor 70 is reduced, and axial abrasion and radial abrasion are avoided.
3. In the present application, the control board 50 (also called a circuit board or a driver) and the stator 60 are cooled together, and the cooling efficiency is increased.
4. The hydraulic loss of hydraulic cooling is avoided, and the overall efficiency of the water pump is improved; simple structure, the control panel 50 position heat dissipation area is big, is favorable to the heat dissipation of control panel 50 and the improvement of efficiency. The motor heat dissipation area is large, heat dissipation of the motor is facilitated, and efficiency of the motor is improved.
5. The casing 20 and the heat dissipation end cover 30 are made of aluminum alloy, which not only helps to improve the heat dissipation efficiency, but also enables the main volute 10 and the auxiliary volute 40 to be made of plastic, which is beneficial to reducing the weight and the cost.
6 this application adopts water seal structure 82, no hydraulic loss, and water need not to advance rotor 70, has reduced the setting of separation sleeve, can reduce motor air gap volume for the volume reduction of motor, light in weight, it is with low costs.
7. This application adopts the method of liquid cooling (antifreeze is the medium) to compromise motor heat dissipation and control panel heat dissipation, increases supplementary inlet 41 from the casing rear end, through control panel 50 and motor cooling, and rethread impeller 83 high-pressure region is gone the coolant liquid circulation, has the structure and connects singly, and water conservancy is lossless, advantage that the radiating effect is good.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. A high-efficiency high-power electronic water pump is characterized by comprising:
the liquid inlet device comprises a machine shell, wherein a main liquid inlet (11) and an auxiliary liquid inlet (41) are formed in the machine shell;
the cooling liquid runner, the cooling liquid runner set up in on the casing, be used for right stator (60) in the casing and/or control panel (50) cool off, the both ends of cooling liquid runner respectively correspond with main inlet (11) and supplementary inlet (41) intercommunication, so that the coolant liquid of supplementary inlet (41) flows to main inlet (11) under the effect of casing internal pressure.
2. A high-efficiency high-power electronic water pump according to claim 1, wherein the casing comprises a main volute (10), a housing (20), a heat-dissipating end cover (30) and an auxiliary volute (40), the main volute (10) is connected with a first end of the housing (20) in a sealing manner, the heat-dissipating end cover (30) is connected with an inner side of a second end of the housing (20) in a sealing manner, and the auxiliary volute (40) is connected with an outer side of the second end of the housing (20) in a sealing manner; a cooling cavity (42) used for cooling a control plate (50) arranged on the heat dissipation end cover (30) is formed among the auxiliary volute (40), the shell (20) and the heat dissipation end cover (30).
3. The high-efficiency high-power electronic water pump as claimed in claim 2, wherein the main volute (10) is provided with a first cooling liquid channel (12) communicated with the main liquid inlet (11), the housing (20) is provided with a second cooling liquid channel (21) for cooling a stator (60) inside the housing (20), and the first cooling liquid channel (12), the second cooling liquid channel (21) and the cooling cavity (42) are sequentially communicated to form the cooling liquid flow channel.
4. A high-efficiency high-power electronic water pump according to claim 3, wherein the second coolant channel (21) is disposed in the side wall of the housing (20) in a circular ring shape.
5. A high efficiency and high power electronic water pump according to claim 3, wherein the first coolant channel (12) is fan-shaped and disposed in the side wall of the main volute (10).
6. A high-efficiency high-power electronic water pump as claimed in claim 1, wherein the main liquid inlet (11) and the auxiliary liquid inlet (41) are disposed at two axial ends of the casing respectively.
7. A high efficiency high power electronic water pump as claimed in claim 2, wherein the housing (20) and the heat dissipating end cap (30) are made of aluminum alloy.
8. A high efficiency high power electronic water pump according to claim 2, wherein the main volute (10) and the auxiliary volute (40) are made of plastic.
9. The efficient high-power electronic water pump as claimed in claim 2, wherein a stator (60), a rotor (70) and a rotating shaft (80) are arranged in the housing (20), the stator (60) is connected with the housing (20) through a shrink fit process, the rotor (70) is arranged on the rotating shaft (80), and two ends of the rotating shaft (80) are respectively and rotatably connected with the housing (20) and the heat dissipation end cover (30) through bearings (81); and one end of the rotating shaft (80) is connected with the shell (20) in a rotating and sealing mode through a water seal structure (82).
10. A high efficiency high power electronic water pump according to claim 2, characterized in that a sealing gasket (91) is provided between the main volute (10) and the housing (20) for preventing the high pressure coolant in the casing from flowing into the coolant flow channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121637955.XU CN215772776U (en) | 2021-07-19 | 2021-07-19 | High-efficiency high-power electronic water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121637955.XU CN215772776U (en) | 2021-07-19 | 2021-07-19 | High-efficiency high-power electronic water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215772776U true CN215772776U (en) | 2022-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121637955.XU Active CN215772776U (en) | 2021-07-19 | 2021-07-19 | High-efficiency high-power electronic water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215772776U (en) |
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2021
- 2021-07-19 CN CN202121637955.XU patent/CN215772776U/en active Active
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