CN208396956U - A kind of electronic water pump - Google Patents
A kind of electronic water pump Download PDFInfo
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- CN208396956U CN208396956U CN201820645768.8U CN201820645768U CN208396956U CN 208396956 U CN208396956 U CN 208396956U CN 201820645768 U CN201820645768 U CN 201820645768U CN 208396956 U CN208396956 U CN 208396956U
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- water
- hollow shaft
- bearing
- shell
- rotor assembly
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Abstract
The utility model discloses a kind of electronic water pump, there are gap between impeller assembly and the shell of motor casing, which communicates with the impeller assembly chamber of lower section；The lower section of impeller assembly chamber is covered with water proof to be communicated with the toroidal cavity formed between rotor assembly, which covers with lower section water proof communicates with the toroidal cavity formed between second bearing；Pass through the channel between the lower end surface and heat dissipation rear cover of hollow shaft, water proof set is communicated with the toroidal cavity formed between second bearing with the central water channel of hollow shaft, central water channel is communicated by the center through hole of impeller assembly with water pump shell, and cooling circuit from up to down, bottom-up is formed.By the adjustment to central axis mounting structure, the cooling water entered between rotor and separation sleeve flows out the utility model from the central water channel of central axis, forms Water-cooling circulating access.No matter central axis is rotation or does not rotate, and does not influence the reflux of cooling water.
Description
Technical field
The utility model relates to a kind of automobile-used electronic water pumps.
Background technique
In the process of running, the electric control part positioned at pump housing bottom can generate a large amount of heat, temperature to electronic water pump for automobile
The component on circuit board can be burnt out when excessively high, therefore electronic water pump can design a Water-cooling circulating in design inside it
The heat that circuit board generates is taken away by the water circulated in channel.
Such as Chinese patent literature CN105443400A(application number 201610050672.2) disclose a kind of electronic water
Pump, electronic water pump includes motor casing, and outside is connected with drive plate assemblies；Stator winding is set on the inside of the motor casing, and
It is electrically connected with the drive plate assemblies, and rotating excitation field can be generated under the control of the drive plate assemblies；Separation sleeve is arranged
On the inside of the stator winding, and it is internal with annular chamber, and the front end of the separation sleeve is open end, and rear end is closing
End, the central axial installation mandrel of the separation sleeve；Vane rotor assembly is set in the annular chamber, and is arranged with being able to rotate
Outside the mandrel；Pump cover is sealedly connected on the open end of the separation sleeve, and docks to be formed described in accommodating with the separation sleeve
The pump chamber of impeller offers the water inlet and water outlet being connected to respectively with the pump chamber on the pump cover.The separation sleeve and institute
Stating the cavity between vane rotor assembly is heat dissipation cavity, and the heat dissipation cavity and the pump chamber constitute fluid flow passageway.The pump
Lid is in scroll casing shape, and the pump chamber is spiral case inner cavity, close to the pressure in the region of the water outlet in the spiral case inner cavity, greater than leaning on
The pressure in the region of the nearly water inlet.Due to the presence of height pressure area in pump chamber, fluid will be total with vane rotor in separation sleeve
The heat dissipation cavity being shaped to circulates, the heat that the heat and drive plate assemblies for taking away motor itself generate.The water of above structure
SAPMAC method channel is the cavity between separation sleeve and the vane rotor assembly, is entered by water, leaves the cavity and take away circuit
Heat on plate.
In order to improve Water-cooling circulating efficiency, Chinese patent literature CN206175322U(application number 201621205630.3)
A kind of electronic water pump with interior circulation cooling circuit is disclosed, including outer housing, is fixed on the inner housing of outer housing upper end, outside
The mandrel that inner housing is stretched out in upper end is fixed in shell, the rotor assembly and impeller of electronic water pump are located at by sliding shaft sleeve rotation
On mandrel, stator module is arranged and is fixed on outer housing inner wall around rotor assembly, offers on the sliding shaft sleeve inner wall
At least three circumferentially uniformly distributed axial grooves, gap, stator module between the impeller and inner housing and between rotor assembly
Gap, the gap between rotor assembly and mandrel and axial groove constitute circulation cooling circuit in complete.When water pump operation,
Fluid cools down electronic water pump inside by the interior circulation loop, to improve reliability and the service life of electronic water pump.
It is similar with above-mentioned patent, Chinese patent literature CN207033845U(application number 201720887985.3) it is open
A kind of electronic water pump has the pump housing, pump cover and pedestal, has the inner cavity of installation impeller in pump cover, the inner cavity connects respectively
It is connected with intake tunnel and drainage channel, stator, rotor and central axis is equipped in the pump housing, spacer is equipped between stator and rotor, in
Mandrel bottom end is fixed with spacer bottom, and central axis front end is fixed by support sleeve and pump cover, and stator is mounted on spacer outer wall and pump
Between internal wall, rotor and central axis rotation cooperate, and impeller and rotor end-face are clamped and rotor followed to rotate synchronously, rotor and every
The water channel that interior intracavitary cold water is led to central axis bottom end is formed between set inner wall, spacer inner bottom surface, is offered and is passed through on central axis
The axial notch of waterway bottom end and inner cavity.Electronic water pump during operation, the interior intracavitary cold water where impeller, by water
Road flows to central axis bottom end, then the axial notch on central axis flows back into inner cavity, since axial notch is provided with central axis
On, and central axis remains static in pump working, therefore when cold water flows through axial notch, will not due to pump operation by
To stagnation or disruption, it is ensured that interior intracavitary cold water flows back into inner cavity through water channel, axial notch and circulates shape in continuous
State generates work calories continuously to take away water pump bottom electrical control circuit plate.
I.e. above-mentioned two applications by opening up axial notch on center shaft, so that is entered between rotor and separation sleeve is cold
But first part of application does not need backtracking to water for another example, but enters in pump cover from axial notch outflow, improves cooling efficiency.
Utility model content
It is good, stable automobile-used that the technical problem to be solved by the utility model is to provide a kind of heat dissipation for circuit board effects
Electronic water pump.
The technical solution for realizing the utility model aim is a kind of electronic water pump, including water pump shell, motor casing, circuit board group
Part, rear end cap, impeller assembly, central axis, rotor assembly, water proof set and stator module, motor casing include shell and heat dissipation rear cover,
Heat dissipation rear cover sealing is fixed on the lower section of shell.
Central axis is hollow shaft, and center is equipped with one and runs through upper and lower central water channel, the first axle that hollow shaft passes through top
Hold, the second bearing of lower section be arranged in motor casing shell center；The lower surface of the second bearing of hollow shaft lower end not with heat dissipation
Rear cover contact forms the channel for media flow between the lower end surface and heat dissipation rear cover of hollow shaft.
Impeller assembly is rotatably mounted around hollow shaft upper end, and rotor assembly is sleeved on outside hollow shaft, water proof set set
It is located at outside rotor assembly, forms toroidal cavity between water proof set and rotor assembly, stator module is set in the outside of water proof set.
There are gap between impeller assembly and the shell of motor casing, which communicates with the impeller assembly chamber of lower section；Impeller
The lower section of assembly chambeies is equipped with upper and lower perforative through-hole, the toroidal cavity formed between the lower section of through-hole and water proof set and rotor assembly
It communicates, which covers with lower section water proof communicates with the toroidal cavity formed between second bearing；Pass through the lower end of hollow shaft
Channel between face and heat dissipation rear cover, water proof cover the central water channel phase with the toroidal cavity and hollow shaft that are formed between second bearing
Logical, central water channel is communicated by the center through hole of impeller assembly with water pump shell, forms cooling cycle from up to down, bottom-up
Circuit.
First bearing for installing hollow shaft is additionally provided with below first bearing between impeller assembly and rotor assembly
Antifriction bearing.
The upper surface of water proof set is higher by the height of rotor assembly, and upper end opening, and lower end surface exceeds rotor assembly, with heat dissipation
Rear cover is tightly connected, and forms toroidal cavity between water proof set and second bearing.
The utility model has the effect of positive: the utility model design electronic water pump water-cooling loop when, use
The center of central axis is provided with the channel for running through front and back, by the adjustment to central axis mounting structure, from rotor and separation sleeve
Between the cooling water that enters flowed out from the central water channel of central axis, form Water-cooling circulating access.
The way of axial notch, the central axis processing of the utility model are opened up in the periphery of central axis compared to documents
Simply；And no matter central axis is rotation or does not rotate, and does not influence the reflux of cooling water.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the electronic water pump of the utility model；
Fig. 2 is the cooling circuit schematic diagram of Fig. 1 water pump；
Fig. 3 is the appearance schematic diagram of water pump；
Label in above-mentioned attached drawing is as follows:
Water pump shell 1, water inlet 11, water outlet 12；
Motor casing 2, shell 21, radiate rear cover 22；
Circuit board assemblies 3, rear end cap 4, impeller assembly 5, hollow shaft 6, central water channel 61,
Rotor assembly 7, water proof set 8, stator module 9；
First bearing 101, second bearing 102, antifriction bearing 103；
Impeller assembly chamber 201, hole 202.
Specific embodiment
(embodiment 1)
See Fig. 1 and Fig. 3, the electronic water pump of the present embodiment include water pump shell 1, motor casing 2, circuit board assemblies 3, rear end cap 4,
Impeller assembly 5, hollow shaft 6, rotor assembly 7, water proof set 8 and stator module 9.
Water pump shell 1 is equipped with water inlet 11 and water outlet 12.
Motor casing 2 includes shell 21 and heat dissipation rear cover 22, and shell 21 is cylindrical shape, and the heat dissipation sealing of rear cover 22 is fixed on shell
21 lower section；Water pump shell 1 is sealingly mounted at 21 top of shell of motor casing 2；Rear end cap 4 seals the heat dissipation for being fixed on motor casing 2
22 lower section of rear cover.Circuit board assemblies 3 are fixed on the lower section of heat dissipation rear cover 22, positioned at the inside of rear end cap 4.
The upper end of impeller assembly 5 is stretched out outside the shell 21 of motor casing 2, hollow shaft 6, rotor assembly 7, water proof set 8 and stator
Component 9 is located inside shell 21.
Impeller assembly 5 is rotatably mounted around 6 upper end of hollow shaft.Hollow shaft 6 by the first bearing 101 of top, under
21 center of shell of motor casing 2 is arranged in the second bearing 102 of side, is coaxially disposed with shell 21, below first bearing 101 also
Equipped with antifriction bearing 103.The center of hollow shaft 6 is equipped with one and runs through upper and lower channel, calls it as central water channel 61.
Rotor assembly 7 is sleeved on outside hollow shaft 6, rotor and 6 coaxial line of hollow shaft；Water proof set 8 is set in rotor assembly 7
Outside forms toroidal cavity between water proof set 8 and the rotor of rotor assembly 7 with 6 coaxial line of hollow shaft.Stator module 9 is set in
The outside of water proof set 8, stator and 6 coaxial line of hollow shaft.Stator module 9 is electrically connected with circuit board assemblies 3, in circuit board group
Rotating excitation field is generated under the control of part 3.
First bearing 101 and antifriction bearing 103 for installing hollow shaft 6 be located at impeller assembly 5 and rotor assembly 7 it
Between.
The lower surface of the second bearing 102 of 6 lower end of hollow shaft is not contacted with heat dissipation rear cover 22, in the lower end surface of hollow shaft 6
The channel for medium such as water flowing is formed between heat dissipation rear cover 22.
The upper surface of water proof set 8 is higher by the height of rotor assembly 7, and upper end opening, lower end surface exceed rotor assembly 7, with
The rear cover 22 that radiates is tightly connected, and forms toroidal cavity between water proof set 8 and second bearing 102.
See Fig. 2, there are gap, the impeller assembly chambers in the gap and lower section between impeller assembly 5 and the shell 21 of motor casing 2
201 communicate；The lower section of impeller assembly chamber 201 is equipped with upper and lower perforative through-hole 202, the lower section of through-hole 202 and water proof set 8 and rotor
The toroidal cavity formed between component 7 communicates, the ring formed between the toroidal cavity and lower section water proof set 8 and second bearing 102
Shape cavity communicates；By the channel between the lower end surface and heat dissipation rear cover 22 of hollow shaft 6, between water proof set 8 and second bearing 102
The toroidal cavity of formation is communicated with the central water channel 61 of hollow shaft 6, so that the Water-cooling circulating formed from up to down, bottom-up is cold
But circuit.
At work, the heat that circuit board assemblies 3 generate first passes to heat dissipation rear cover 22 to motor.
Gap of the cooling water first between impeller assembly 5 and the shell 21 of motor casing 2 enters impeller assembly chamber 201, this chamber
Body is pressure medium higher-pressure region；The medium of higher-pressure region is downwardly between water proof set 8 and rotor assembly 7 by through-hole 202 and is formed
Toroidal cavity communicate, continue traveling downwardly and communicated into the toroidal cavity that is formed between water proof set 8 and second bearing 102, then from
Channel between the lower end surface and heat dissipation rear cover 22 of hollow shaft 6 enters the central water channel 61 of hollow shaft 6, upwardly through impeller assembly
5 center through hole flows back in water pump shell 1, is herein pressure medium low-pressure area, flows out from water outlet 12.Cooling water is by radiating
The heat to radiate on rear cover 22 is taken away when rear cover 22.
The utility model design electronic water pump water-cooling loop when, the center of the central axis of use be provided with one run through before
Channel afterwards, by the adjustment to central axis mounting structure, the cooling water that enters between rotor and separation sleeve is from central axis
Central water channel outflow, forms Water-cooling circulating access.The way of axial notch is opened up in the periphery of central axis compared to documents,
The processing is simple for the central axis of the utility model；And no matter central axis is rotation or does not rotate, and does not influence returning for cooling water
Stream.
Claims (3)
1. a kind of electronic water pump, including water pump shell (1), motor casing (2), circuit board assemblies (3), rear end cap (4), impeller assembly
(5), central axis, rotor assembly (7), water proof set (8) and stator module (9), motor casing (2) include shell (21) and heat dissipation rear cover
(22), heat dissipation rear cover (22) sealing is fixed on the lower section of shell (21), it is characterised in that:
Central axis is hollow shaft (6), and center is equipped with one and runs through upper and lower central water channel (61), and hollow shaft (6) passes through top
The shell (21) of first bearing (101), the setting of the second bearing (102) of lower section in motor casing (2) is central；Hollow shaft (6) lower end
Second bearing (102) lower surface not with heat dissipation rear cover (22) contact, hollow shaft (6) lower end surface with radiate rear cover (22)
Between formed for media flow channel；
Impeller assembly (5) is rotatably mounted around hollow shaft (6) upper end, and rotor assembly (7) is sleeved on hollow shaft (6) outside,
Water proof set (8) is set in rotor assembly (7) outside, forms toroidal cavity, stator pack between water proof set (8) and rotor assembly (7)
Part (9) is set in the outside of water proof set (8)；
There are gap, the impeller assembly chambers in the gap and lower section between impeller assembly (5) and the shell (21) of motor casing (2)
(201) it communicates；The lower section of impeller assembly chamber (201) is equipped with upper and lower perforative through-hole (202), the lower section of through-hole (202) and water proof
The toroidal cavity formed between set (8) and rotor assembly (7) communicates, the toroidal cavity and lower section water proof set (8) and second bearing
(102) toroidal cavity formed between communicates；By the channel between the lower end surface of hollow shaft (6) and heat dissipation rear cover (22), every
The toroidal cavity formed between water jacket (8) and second bearing (102) is communicated with the central water channel (61) of hollow shaft (6), central water
Road (61) is communicated by the center through hole of impeller assembly (5) with water pump shell (1), and the cooling formed from up to down, bottom-up follows
Loop back path.
2. electronic water pump according to claim 1, it is characterised in that: for installing the first bearing (101) of hollow shaft (6)
Between impeller assembly (5) and rotor assembly (7), antifriction bearing (103) are additionally provided with below first bearing (101).
3. electronic water pump according to claim 1, it is characterised in that: the upper surface of water proof set (8) is higher by rotor assembly (7)
Height, and upper end opening, lower end surface exceeds rotor assembly (7), is tightly connected with heat dissipation rear cover (22), water proof set (8) with
Second bearing forms toroidal cavity between (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820645768.8U CN208396956U (en) | 2018-05-02 | 2018-05-02 | A kind of electronic water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820645768.8U CN208396956U (en) | 2018-05-02 | 2018-05-02 | A kind of electronic water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208396956U true CN208396956U (en) | 2019-01-18 |
Family
ID=65061507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820645768.8U Active CN208396956U (en) | 2018-05-02 | 2018-05-02 | A kind of electronic water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208396956U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854540A (en) * | 2019-04-09 | 2019-06-07 | 广东骏驰科技股份有限公司 | A kind of centrifugal pump |
| CN110285069A (en) * | 2019-07-05 | 2019-09-27 | 黄宗洪 | Water flow internal circulation water pump |
| CN110374888A (en) * | 2019-08-28 | 2019-10-25 | 芜湖飞龙汽车电子技术研究院有限公司 | A kind of vehicle electric water pump is from cooling mechanism |
| WO2021052013A1 (en) * | 2019-09-19 | 2021-03-25 | 江苏大学 | High-efficiency, low-noise automobile electronic water pump |
| WO2023060848A1 (en) * | 2020-12-25 | 2023-04-20 | 利欧集团浙江泵业有限公司 | Double-channel water pump which facilitates diversion |
| CN116404810A (en) * | 2023-02-20 | 2023-07-07 | 鹤山市民强五金机电有限公司 | Permanent magnet brushless motor structure and method based on water pump |
-
2018
- 2018-05-02 CN CN201820645768.8U patent/CN208396956U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854540A (en) * | 2019-04-09 | 2019-06-07 | 广东骏驰科技股份有限公司 | A kind of centrifugal pump |
| CN110285069A (en) * | 2019-07-05 | 2019-09-27 | 黄宗洪 | Water flow internal circulation water pump |
| CN110374888A (en) * | 2019-08-28 | 2019-10-25 | 芜湖飞龙汽车电子技术研究院有限公司 | A kind of vehicle electric water pump is from cooling mechanism |
| WO2021052013A1 (en) * | 2019-09-19 | 2021-03-25 | 江苏大学 | High-efficiency, low-noise automobile electronic water pump |
| WO2023060848A1 (en) * | 2020-12-25 | 2023-04-20 | 利欧集团浙江泵业有限公司 | Double-channel water pump which facilitates diversion |
| CN116404810A (en) * | 2023-02-20 | 2023-07-07 | 鹤山市民强五金机电有限公司 | Permanent magnet brushless motor structure and method based on water pump |
| CN116404810B (en) * | 2023-02-20 | 2024-01-12 | 深圳艾史比特电机有限公司 | Permanent magnet brushless motor structure and method based on water pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 213004 No. 13 Lihuabei Road, Tianning District, Changzhou City, Jiangsu Province Patentee after: Changzhou Southeast Electric Appliance & Motor Co.,Ltd. Address before: 213004 No. 13 Lihuabei Road, Tianning District, Changzhou City, Jiangsu Province Patentee before: CHANGZHOU DONGNAN ELECTRICAL APPLIANCE MOTOR Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |