CN117514835A - Dual radiating electronic water pump of belt drive mechanism - Google Patents
Dual radiating electronic water pump of belt drive mechanism Download PDFInfo
- Publication number
- CN117514835A CN117514835A CN202311584031.1A CN202311584031A CN117514835A CN 117514835 A CN117514835 A CN 117514835A CN 202311584031 A CN202311584031 A CN 202311584031A CN 117514835 A CN117514835 A CN 117514835A
- Authority
- CN
- China
- Prior art keywords
- water pump
- brushless motor
- electronic water
- fan assembly
- transmission mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 91
- 230000007246 mechanism Effects 0.000 title claims abstract description 25
- 230000009977 dual effect Effects 0.000 title claims description 9
- 230000005540 biological transmission Effects 0.000 claims abstract description 30
- 230000017525 heat dissipation Effects 0.000 claims abstract description 24
- 238000009434 installation Methods 0.000 claims abstract description 18
- 230000000694 effects Effects 0.000 claims abstract description 8
- 230000000903 blocking effect Effects 0.000 claims description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/5806—Cooling the drive system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/5813—Cooling the control unit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
- F04D29/588—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps cooling or heating the machine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses an electronic water pump with a transmission mechanism for double heat dissipation, which comprises a shell and a rear cover arranged at the rear end of the shell, wherein an electronic water pump mounting cavity and a fan assembly mounting cavity are arranged in the shell; the electronic water pump installation cavity is positioned at the front end of the shell, and the fan assembly installation cavity is positioned between the electronic water pump installation cavity and the rear cover; the electronic water pump is provided with a brushless motor, and when the electronic water pump works, water enters a rotor part of the brushless motor through the impeller to cool the brushless motor; a fan assembly is arranged in the fan assembly mounting cavity and driven by the brushless motor to rotate, so that air in the fan assembly mounting cavity circulates to achieve the radiating effect on the electric control assembly in the electronic water pump. The invention drives the gear to drive through the brushless motor, and has simple structure and easy installation. The speed of the fan can be controlled by adjusting the gear transmission ratio, so that the air in the cavity can circulate to achieve the heat dissipation effect.
Description
Technical field:
the invention relates to an electronic water pump, in particular to an electronic water pump with a transmission mechanism for double heat dissipation.
The background technology is as follows:
the electronic water pump is widely applied to new energy automobiles, and along with the rapid development of the new energy electric automobiles, the requirements on the performance of parts of the electric automobiles are higher and higher, and currently, the electronic water pump is taken as an important part of a cooling system, has important influence on the performance of the automobiles, and is a key and indispensable part for ensuring the safety performance of the automobiles.
The existing controller of the electronic water pump can generate a large amount of heat in the working state, and if the temperature is not reduced in time, the normal work of each part of the electronic water pump can be influenced. At present, heat generated by a water pump can be taken away through a liquid medium in a rotor chamber, however, the flow rate of the liquid medium in the rotor chamber is low, and a large amount of heat is difficult to take away quickly, so that the performance of an automobile is affected, and therefore, an efficient and reliable heat dissipation structure and a heat dissipation method are needed to be provided for the electronic water pump.
Disclosure of Invention
The invention aims to solve the problems, and provides the electronic water pump with the transmission mechanism for double heat dissipation, which solves the defect of poor heat dissipation of the electronic water pump.
In order to solve the problems, the technical solution adopted by the invention is as follows:
the electronic water pump with the transmission mechanism for double heat dissipation comprises a shell and a rear cover arranged at the rear end of the shell, and is characterized in that an electronic water pump installation cavity and a fan assembly installation cavity are arranged in the shell; the electronic water pump installation cavity is positioned at the front end of the shell, and the fan assembly installation cavity is positioned between the electronic water pump installation cavity and the rear cover; the electronic water pump is provided with a brushless motor, and when the electronic water pump works, water enters a rotor part of the brushless motor through the impeller to cool the brushless motor; a fan assembly is arranged in the fan assembly mounting cavity, and the fan assembly is driven by the brushless motor to rotate, so that air in the fan assembly mounting cavity circulates to achieve the radiating effect on the electric control assembly in the electronic water pump.
In a preferred embodiment of the present invention, the electronic water pump further includes an electronic control part, which is also disposed in the electronic water pump mounting chamber and between the brushless motor and the fan assembly mounting chamber; a water blocking sleeve is arranged between the brushless motor and the electric control part, and water entering the rotor part of the brushless motor is limited to enter the electric control part through the water blocking sleeve.
In a preferred embodiment of the invention, the water blocking sleeve is axially limited on the output shaft of the brushless motor through an upper clamping ring and a lower clamping ring, so that the water blocking ring cannot axially move relative to the output shaft of the brushless motor, and the output shaft of the brushless motor can rotate relative to the water blocking ring.
In a preferred embodiment of the invention, an O-ring is provided between the outer periphery of the water barrier and the housing and is surrounded by the O-ring.
In a preferred embodiment of the present invention, the impeller of the electronic water pump is mounted at one end of the output shaft of the brushless motor, and the other end of the output shaft of the brushless motor drives the fan assembly to rotate through a fan assembly transmission mechanism.
In a preferred embodiment of the present invention, the fan assembly transmission mechanism includes a driving gear fixed on the other end of the output shaft of the brushless motor and a driven gear mounted on a transmission shaft in the fan assembly, and the driving gear is meshed with the driven gear, so that the output shaft of the brushless motor drives the fan assembly to rotate.
In a preferred embodiment of the present invention, the other end of the output shaft of the brushless motor is supported on the rear cover through a bearing to maintain the balance of the brushless motor; the fan assembly is also mounted to the rear cover by a bearing.
In a preferred embodiment of the invention, the water-blocking sleeve material is iron-based +20% copper +1.8% graphite, and the oil content of the inner ring is 20+/-3%.
The working process of the invention is as follows: when the electronic water pump works, water can enter the brushless motor rotor part through the impeller to cool the brushless motor part, and the water is sealed around the rotor by the water barrier and does not enter the electric control assembly, so that the electric control assembly can generate heat. According to the invention, the brushless motor is started and drives the driving gear to rotate, and the driving gear is meshed with the driven gear, so that the output shaft of the brushless motor drives the fan assembly to rotate, and the air in the installation cavity of the fan assembly circulates, so that the heat dissipation effect on the electric control assembly is achieved. The brushless motor controls the fan assembly to work through the gear transmission, so that the stability is high and the service life is long, the purpose of cooling the electronic control part of the electronic water pump is achieved, and the electronic water pump can be ensured to normally operate for a long time.
The beneficial effects achieved by adopting the technical proposal of the invention are as follows: when the electronic water pump works, the brushless motor works to generate heat, a part of heat can be absorbed and cooled by water, meanwhile, the cooling fan can be started rapidly to cool the electric control part and the stator part of the brushless motor, the electric control assembly is prevented from overheating, the dual cooling effect of the water and the cooling fan is doubled, and the defect of short service life caused by overheating of parts can be effectively avoided.
The invention drives the gear to drive through the brushless motor, and has simple structure and easy installation. The speed of the fan can be controlled by adjusting the gear transmission ratio, so that the air in the cavity can circulate to achieve the heat dissipation effect.
Description of the drawings:
fig. 1 is an external schematic view of an electronic water pump with a transmission mechanism for dual heat dissipation according to the present invention.
Fig. 2 is a schematic cross-sectional view of an electronic water pump with a transmission mechanism for dual heat dissipation according to the present invention.
Fig. 3 is a schematic structural diagram of an electronic water pump with a transmission mechanism for dual heat dissipation.
Fig. 4 is a schematic structural diagram of a fan assembly in an electronic water pump with a transmission mechanism for dual heat dissipation according to the present invention.
The specific embodiment is as follows:
in order to make the objects, technical links and advantages of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without making any inventive effort shall fall within the scope of the present invention.
Referring to fig. 1 to 4, there is shown an electronic water pump with a double heat dissipation of a transmission mechanism, comprising a housing 19 and a rear cover 18 mounted on the rear end of the housing 19, the housing 19 being provided with an electronic water pump mounting chamber 20 and a fan assembly mounting chamber 21; an electronic water pump mounting cavity 20 is located at the front end of the housing 19, and a fan assembly mounting cavity 21 is located between the electronic water pump mounting cavity 20 and the rear cover 18.
The electronic water pump 2 has a brushless motor 3, an impeller 22, and an electric control portion 23, the impeller 22 being fixed to one end of an output shaft 24 of the brushless motor 3 (i.e., the front end of the output shaft of the brushless motor 3), the brushless motor 3 driving the impeller 22 to rotate through the output shaft 24 of the brushless motor 3. When the electronic water pump 2 is in operation, water enters the rotor portion of the brushless motor 3 through the impeller 22, and the brushless motor 3 is cooled.
The electric control portion 23 is provided in the electronic water pump mounting chamber 20 between the brushless motor 3 and the fan assembly mounting chamber 21, and a water blocking sleeve 14 is provided between the brushless motor 3 and the electric control portion 23 so that water entering the rotor portion of the brushless motor 3 is prevented from entering the electric control portion 23 by the water blocking sleeve 14 in order to enter the electric control portion 23.
The water blocking sleeve 14 is axially limited on the output shaft 24 of the brushless motor 3 through the upper clamping ring 15 and the lower clamping ring 16, so that the water blocking sleeve 14 cannot axially move relative to the output shaft 24 of the brushless motor 3, and the output shaft 24 of the brushless motor 3 can rotate relative to the water blocking sleeve 14. An O-ring 17 is provided between the outer periphery of the water blocking sleeve 14 and the housing 19, and is surrounded by the O-ring 17. The water-proof sleeve 14 is made of iron-based +20% copper +1.8% graphite, and the oil content of the inner ring is 20+/-3%.
A fan assembly 12 is installed in the fan assembly installation cavity 21 through a bearing 9, and the fan assembly 12 is driven to rotate through the brushless motor 3 and the fan assembly transmission mechanism 7, so that air in the fan assembly installation cavity 21 circulates to achieve the heat dissipation effect on the electric control assembly 23 in the electronic water pump 2. The rotating shaft 8 and the rear cover 18 are tightly matched without relative movement.
The fan assembly transmission mechanism 7 comprises a driving gear 4 fixed on the other end of the output shaft 24 of the brushless motor 3 (i.e. the tail end of the output shaft 24 of the brushless motor 3) through a flat head screw 10 and a driven gear 6 arranged on a transmission shaft 8 in the fan assembly 3 through a flat head screw 11, wherein the driving gear 4 is meshed with the driven gear 6, so that the output shaft 24 of the brushless motor 3 drives the fan assembly 12 to rotate.
The rear end of the output shaft 24 of the brushless motor 3 is supported on the rear cover 18 via a bearing 5 to maintain the balance of the brushless motor 3. The bearing 5 is tightly matched with the rear cover 18 without relative movement.
The blades 25 of the fan assembly 12 are secured to the drive shaft 8 of the fan assembly 3 by flat head screws 13. In order to provide reliability, screw threads may be added dropwise to the flat head screws 10, 11, 13 for fixation.
The middle holes of the driving gear 4, the driven gear 6 and the fan assembly 12 are flat, so that the driving gear 4, the driven gear 6 and the fan assembly 12 can be conveniently fixed by the output shaft 24 of the brushless motor 3 and the transmission shaft 8 in the fan assembly 12 respectively, and can keep a relatively static movement relation with the driving gear 4, the driven gear 6 and the fan assembly 12.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiment, it will be apparent to those skilled in the art that modifications may be made to the technical solution described in the foregoing embodiment, or equivalents may be substituted for some of the technical features thereof, and any modifications, equivalents, improvements or changes that fall within the principles of the present invention should be included in the scope of protection of the present invention.
Claims (8)
1. The electronic water pump with the transmission mechanism for double heat dissipation comprises a shell and a rear cover arranged at the rear end of the shell, and is characterized in that an electronic water pump installation cavity and a fan assembly installation cavity are arranged in the shell; the electronic water pump installation cavity is positioned at the front end of the shell, and the fan assembly installation cavity is positioned between the electronic water pump installation cavity and the rear cover; the electronic water pump is provided with a brushless motor, and when the electronic water pump works, water enters a rotor part of the brushless motor through the impeller to cool the brushless motor; a fan assembly is arranged in the fan assembly mounting cavity, and the fan assembly is driven by the brushless motor to rotate, so that air in the fan assembly mounting cavity circulates to achieve the radiating effect on the electric control assembly in the electronic water pump.
2. The electronic water pump with dual heat dissipation of transmission mechanism as recited in claim 1, further comprising an electronic control section also disposed within the electronic water pump mounting cavity and between the brushless motor and the fan assembly mounting cavity; a water blocking sleeve is arranged between the brushless motor and the electric control part, and water entering the rotor part of the brushless motor is limited to enter the electric control part through the water blocking sleeve.
3. The electronic water pump with double heat dissipation of a transmission mechanism according to claim 2, wherein the water blocking sleeve is axially limited on the output shaft of the brushless motor through an upper clamping ring and a lower clamping ring, so that the water blocking ring cannot axially move relative to the output shaft of the brushless motor, and the output shaft of the brushless motor can rotate relative to the water blocking ring.
4. The electronic water pump with double heat dissipation of transmission mechanism according to claim 3, wherein an O-ring is provided between the outer periphery of the water blocking sleeve and the housing and surrounded by the O-ring.
5. An electronic water pump with double heat dissipation of transmission mechanism according to any of claims 1-4, wherein the impeller of the electronic water pump is mounted at one end of the output shaft of the brushless motor, and the other end of the output shaft of the brushless motor drives the fan assembly to rotate through the fan assembly transmission mechanism.
6. The electronic water pump with dual heat dissipation of transmission mechanism as recited in claim 5, wherein the transmission mechanism of the fan assembly comprises a driving gear fixed on the other end of the output shaft of the brushless motor and a driven gear installed on a transmission shaft in the fan assembly, wherein the driving gear is meshed with the driven gear, so that the output shaft of the brushless motor drives the fan assembly to rotate.
7. The electronic water pump with double heat dissipation of transmission mechanism according to claim 6, wherein the other end of the output shaft of the brushless motor is supported on the rear cover through a bearing to maintain the balance of the brushless motor; the fan assembly is also mounted to the rear cover by a bearing.
8. The electronic water pump with double heat dissipation of a transmission mechanism according to claim 7, wherein the water-blocking sleeve material is iron-based +20% copper +1.8% graphite, and the oil content of the inner ring is 20+/-3%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311584031.1A CN117514835A (en) | 2023-11-24 | 2023-11-24 | Dual radiating electronic water pump of belt drive mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311584031.1A CN117514835A (en) | 2023-11-24 | 2023-11-24 | Dual radiating electronic water pump of belt drive mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117514835A true CN117514835A (en) | 2024-02-06 |
Family
ID=89741692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311584031.1A Pending CN117514835A (en) | 2023-11-24 | 2023-11-24 | Dual radiating electronic water pump of belt drive mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117514835A (en) |
-
2023
- 2023-11-24 CN CN202311584031.1A patent/CN117514835A/en active Pending
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