CN203130530U - Inner-circulation compulsory water-cooling electric water pump - Google Patents

Inner-circulation compulsory water-cooling electric water pump Download PDF

Info

Publication number
CN203130530U
CN203130530U CN 201320112082 CN201320112082U CN203130530U CN 203130530 U CN203130530 U CN 203130530U CN 201320112082 CN201320112082 CN 201320112082 CN 201320112082 U CN201320112082 U CN 201320112082U CN 203130530 U CN203130530 U CN 203130530U
Authority
CN
China
Prior art keywords
motor
pump shaft
water
pump
volute
Prior art date
Application number
CN 201320112082
Other languages
Chinese (zh)
Inventor
陈华
胡军
Original Assignee
上海新源动力有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 上海新源动力有限公司 filed Critical 上海新源动力有限公司
Priority to CN 201320112082 priority Critical patent/CN203130530U/en
Application granted granted Critical
Publication of CN203130530U publication Critical patent/CN203130530U/en

Links

Abstract

The utility model discloses an inner-circulation compulsory water-cooling electric water pump. The electric water pump comprises a volute, a front motor end cover, a centrifugal impeller, a motor and a driving plate. The motor comprises a motor rotor cavity which is internally provided with a pump shaft and a motor rotor. The volute is fixedly connected with one side of an open end of the motor rotor cavity of the motor through the front motor end cover. The pump shaft extends into the volute along the axis, and the centrifugal impeller is arranged in the volute and sleeved at the front end of the pump shaft. A water inlet is reserved at the front end of the volute. A water guide hole which communicates the motor rotor cavity with an inner cavity of the volute is reserved on the front motor end cover. A cooling water flow passage is arranged between a motor winding and the motor rotor. A cooling water passage penetrating through the pump shaft is arranged in the pump shaft, and is communicated with the cooling water flow passage. By the inner-circulation compulsory water-cooling electric water pump, accessories needed for compulsory water cooling can be omitted for the water pump motor, even a motive seal between a pump chamber and the motor is omitted, manufacturing cost is saved, and power loss is reduced.

Description

Circulation Forced water cooling electric water pump in a kind of
Technical field
The utility model relates to the centrifugal electric water pump, more particularly, relates to a kind of electric water pump with inner pump circulation refrigerating function.
Background technique
The birth of permanent magnetic brushless makes electric water pump can thoroughly abandon the motive sealing between pump shaft and the pump case, realized having only the no-leakage structure of static seal, the impeller of this electric water pump, pump shaft and rotor are in the same closed chamber, motor stator and winding are then thoroughly isolated with liquid, completely cut off fully between the motor outside medium and the rotor during water pump operation like this, do not had the friction between the dynamic and static seal ring also not have the possibility of leaking because of seal wears with regard to having reduced power loss on the pump shaft, all be multiplied the working life of motor and water pump.But because motor shaft does not pass housing, the cooling fan that is installed in motor shaft one end originally also is cancelled, and motor also just can not be cooled off by the fan air inducing that carries, then need cool off by external world's air-supply or external cooling liquid.Above-mentioned two kinds of types of cooling make that all electric machine structure is more complicated, cost is higher, volume is bigger, and in a word, existing electric water pump structure exists above-mentioned all inconvenience and problem.
The model utility content
At the defective that exists in the prior art, the purpose of this utility model provide a kind of in circulation Forced water cooling electric water pump, can save the cooling unit of pump motor outside, make the electric water pump more compact structure, work is more reliable, cost is lower.
For achieving the above object, the utility model adopts following technological scheme:
Circulation Forced water cooling electric water pump in a kind of, comprise volute, motor front cover, centrifugal impeller, motor and driving plate, described motor comprises motor stator, described motor stator is embedded with the motor winding, be provided with the rotor chamber in the described motor winding, be provided with pump shaft and rotor in the rotor chamber, pump shaft is supported by the self oiling bearing of being located at two ends in the rotor chamber, and described rotor is fixedly arranged on the pump shaft;
Described volute is fixedlyed connected with rotor chamber opening end one side of motor by the motor front cover, and described pump shaft extends in the volute along axis, and described centrifugal impeller is located in the volute, and described centrifugal impeller is set in the front end of pump shaft; The front end of described volute has water intake, and the axis of water intake and the axis of pump shaft coincide; The side of described volute also is provided with water outlet;
One end of described motor winding links to each other with driving plate by lead;
Described motor front cover is provided with the priming hole of UNICOM rotor chamber and volute inner chamber body, be provided with the cooling water runner between described motor winding and the rotor, be provided with the cooling water passage that runs through pump shaft in the described pump shaft, described cooling water runner is connected with described cooling water passage.
The through hole of described cooling water passage for offering along the axis of pump shaft.
Described cooling water passage comprises bypass channel and put-through channel, described pump shaft is divided into leading portion, intermediate section and back segment, described intermediate section pump shaft is located between two self oiling bearings, described bypass channel is located at the outside of intermediate section pump shaft, described put-through channel is located at respectively on the axis of leading portion pump shaft and back segment pump shaft, and the inner of described put-through channel is connected with bypass channel by minute sector hole.
Compared with prior art, adopt a kind of interior circulation Forced water cooling electric water pump of the present utility model.Between the hyperbaric chamber of water pump and rotor chamber a fluid passage is set, the rotor chamber is by the cooling water passage of pump shaft inside and the low-pressure cavity UNICOM at centrifugal impeller front end center; During pump working, the part current of hyperbaric chamber flow back to the water pump inhalant region through the cooling water passage of the cooling water runner between rotor and the rotor chamber and internal rotor and converge with the current of pump intake suction, form the pressure cool cycles that the electric water pump interior orientation is flowed, the part heat that the cooling water that flows through rotor chamber and rotor inside produces when taking away the frictional heat of rotor self oiling bearing and the work of motor winding from rotor cavity wall and axle journal inside, motor and self oiling bearing are effectively cooled off, effectively controlled the temperature of motor winding and self oiling bearing, guarantee the electric water pump reliably working and reduce bearing wear to increase the service life, inner cool cycles water flow size is controlled by the priming hole size between the pump housing and the rotor chamber according to the needs of motor cooling, and intercooling cycle water flow only accounts for 1% to 5% of water pump total discharge usually.The utility model can make pump motor save the annex of forcing cooling required into realizing, even has saved the motive sealing between pump chamber and motor, has not only saved manufacture cost but also reduced power loss.
Description of drawings
Fig. 1 is embodiment's 1 of the present utility model structural representation;
Fig. 2 is embodiment's 2 of the present utility model structural representation.
Embodiment
Further specify the technical solution of the utility model below in conjunction with drawings and Examples.
Embodiment 1
See also a kind of interior circulation Forced water cooling electric water pump shown in Figure 1, comprise volute 11, motor front cover 12, centrifugal impeller 13, motor 14 and driving plate 15, motor 14 comprises motor stator 141, motor stator 141 is embedded with motor winding 142, be provided with rotor chamber 143 in the motor winding 142, be provided with pump shaft 144 and rotor 145 in the rotor chamber 143, pump shaft 144 is supported by the self oiling bearing 146 of being located at two ends in the rotor chamber, and rotor 145 is fixedly arranged on the pump shaft 144;
Volute 11 is fixedlyed connected with rotor chamber opening end one side of motor by motor front cover 12, and pump shaft 144 extends in the volute 11 along axis, and centrifugal impeller 13 is located in the volute 11, and centrifugal impeller 13 is set in the front end of pump shaft 144; The front end of volute 11 has water intake 111, and the axis of the axis of water intake 111 and pump shaft 144 coincides; The side of volute also is provided with water outlet 112;
One end of motor winding 142 links to each other with driving plate 15 by lead 20;
Motor front cover 12 is provided with the priming hole 121 of UNICOM rotor chamber and volute inner chamber body, be provided with the cooling water runner 147 that is symmetrical in axis between motor winding 142 and the rotor 145, be provided with the cooling water passage 148 that runs through pump shaft in the pump shaft 144, the through hole of cooling water passage for offering along the axis of pump shaft.The cooling water runner is connected with the inner of cooling water passage.
During use, motor control module on the driving plate is converted to the electrical pulse supply motor winding that respectively alternates and change with the direct current of input, so the motor winding comes the rotation of drive motor rotor with regard to producing the rotating magnetic field of answering with the rotor pole pair, centrifugal impeller then rotates synchronously with rotor, and interior circulation Forced water cooling electric water pump of the present utility model is just according to designing requirement work.When electric water pump is worked, because the rotation of centrifugal impeller, make the water that enters from water intake 111 along hydraulic pressure zone of high pressure 21 by entering the cooling water flow road behind the priming hole, the energy loss of motor passes to the rotor chamber internal surface with form of heat by the rotor chamber wall and takes away by flowing through this surperficial cooling water, this a part of cooling water flows back to the hydraulic pressure low pressure area 22 of centrifugal impeller front end by the cooling water passage in the pump shaft axle journal subsequently and the major cycle current of pump intake suction converge, taken away axle journal when cooling water flows through axle journal and pivot friction has produced heat, thereby bearing is effectively cooled off.Because the runner on priming hole, rotor slit and the pump shaft has damping to the cooling water that flows through, the relation between inner cool cycles water flow and the pump head has been determined in the total damping in this loop, so can control the size of interior circular flow by the physical dimension design in this loop, thereby reach the purpose of cooling motor and bearing with minimum water pump energy loss.
Circulation Forced water cooling electric water pump can be applied to the EDU cooling system of hybrid power car in of the present utility model, has replaced original magnetic coupling transmission electronic water pump, makes water pump volume, weight, the cost of this system all reduce about 20% superiority.
Arrow among Fig. 1 is the flow direction of cooling water.
Embodiment 2
See also shown in Figure 2ly again, present embodiment and embodiment's 1 difference only is:
Cooling water passage 148 comprises bypass channel 149 and put-through channel 150, pump shaft is divided into leading portion, intermediate section and back segment, described intermediate section pump shaft is located between two self oiling bearings, bypass channel 149 is located at the outside of intermediate section pump shaft, put-through channel 150 is located at respectively on the axis of leading portion pump shaft and back segment pump shaft, and the inner of put-through channel 150 is connected with bypass channel by minute sector hole 151.
All the other contents are all with identical described in the embodiment 1.
Those of ordinary skill in the art will be appreciated that, above embodiment illustrates the purpose of this utility model, and be not with opposing restriction of the present utility model, as long as in essential scope of the present utility model, all will drop in the scope of claim of the present utility model the above embodiment's variation, modification.

Claims (3)

1. circulation Forced water cooling electric water pump in a kind is characterized in that,
Comprise volute, motor front cover, centrifugal impeller, motor and driving plate, described motor comprises motor stator, described motor stator is embedded with the motor winding, be provided with the rotor chamber in the described motor winding, be provided with pump shaft and rotor in the rotor chamber, pump shaft is supported by the self oiling bearing of being located at two ends in the rotor chamber, and described rotor is fixedly arranged on the pump shaft;
Described volute is fixedlyed connected with rotor chamber opening end one side of motor by the motor front cover, and described pump shaft extends in the volute along axis, and described centrifugal impeller is located in the volute, and described centrifugal impeller is set in the front end of pump shaft; The front end of described volute has water intake, and the axis of water intake and the axis of pump shaft coincide; The side of described volute also is provided with water outlet;
One end of described motor winding links to each other with driving plate by lead;
Described motor front cover is provided with the priming hole of UNICOM rotor chamber and volute inner chamber body, be provided with the cooling water runner between described motor winding and the rotor, be provided with the cooling water passage that runs through pump shaft in the described pump shaft, described cooling water runner is connected with described cooling water passage.
2. circulation Forced water cooling electric water pump in according to claim 1 is characterized in that:
The through hole of described cooling water passage for offering along the axis of pump shaft.
3. circulation Forced water cooling electric water pump in according to claim 1 is characterized in that:
Described cooling water passage comprises bypass channel and put-through channel, described pump shaft is divided into leading portion, intermediate section and back segment, described intermediate section pump shaft is located between two self oiling bearings, described bypass channel is located at the outside of intermediate section pump shaft, described put-through channel is located at respectively on the axis of leading portion pump shaft and back segment pump shaft, and the inner of described put-through channel is connected with bypass channel by minute sector hole.
CN 201320112082 2013-03-12 2013-03-12 Inner-circulation compulsory water-cooling electric water pump CN203130530U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320112082 CN203130530U (en) 2013-03-12 2013-03-12 Inner-circulation compulsory water-cooling electric water pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320112082 CN203130530U (en) 2013-03-12 2013-03-12 Inner-circulation compulsory water-cooling electric water pump

Publications (1)

Publication Number Publication Date
CN203130530U true CN203130530U (en) 2013-08-14

Family

ID=48938512

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320112082 CN203130530U (en) 2013-03-12 2013-03-12 Inner-circulation compulsory water-cooling electric water pump

Country Status (1)

Country Link
CN (1) CN203130530U (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104362799A (en) * 2014-12-09 2015-02-18 程夏林 Adjustable-speed motor for pump
CN105370582A (en) * 2014-08-26 2016-03-02 杭州三花研究院有限公司 Electronic water pump
CN106151054A (en) * 2015-03-26 2016-11-23 杭州三花研究院有限公司 Electric drive pump
CN107366624A (en) * 2016-05-11 2017-11-21 刘刚 A kind of electronic water pump
CN107725395A (en) * 2017-10-25 2018-02-23 常州威灵电机制造有限公司 Electronic water pump
CN107917084A (en) * 2018-01-09 2018-04-17 大福泵业有限公司 A kind of hot water circuit canned motor pump and its operating method
WO2018153001A1 (en) * 2017-02-22 2018-08-30 蔚来汽车有限公司 Motor cooling structure, power motor and electric drive system
CN110080990A (en) * 2019-04-11 2019-08-02 浙江科力车辆控制系统有限公司 A kind of electronic water pump
CN110374885A (en) * 2018-04-13 2019-10-25 浙江三花制冷集团有限公司 A kind of pump

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105370582A (en) * 2014-08-26 2016-03-02 杭州三花研究院有限公司 Electronic water pump
CN104362799A (en) * 2014-12-09 2015-02-18 程夏林 Adjustable-speed motor for pump
CN106151054A (en) * 2015-03-26 2016-11-23 杭州三花研究院有限公司 Electric drive pump
CN106151054B (en) * 2015-03-26 2019-12-13 浙江三花汽车零部件有限公司 Electrically driven pump
US10323654B2 (en) 2015-03-26 2019-06-18 Zhejiang Sanhua Automotive Components Co., Ltd. Electrically driven pump
CN107366624A (en) * 2016-05-11 2017-11-21 刘刚 A kind of electronic water pump
WO2018153001A1 (en) * 2017-02-22 2018-08-30 蔚来汽车有限公司 Motor cooling structure, power motor and electric drive system
CN107725395A (en) * 2017-10-25 2018-02-23 常州威灵电机制造有限公司 Electronic water pump
CN107917084B (en) * 2018-01-09 2019-06-14 大福泵业有限公司 A kind of operating method of hot water circuit canned motor pump
CN107917084A (en) * 2018-01-09 2018-04-17 大福泵业有限公司 A kind of hot water circuit canned motor pump and its operating method
CN110374885A (en) * 2018-04-13 2019-10-25 浙江三花制冷集团有限公司 A kind of pump
CN110080990A (en) * 2019-04-11 2019-08-02 浙江科力车辆控制系统有限公司 A kind of electronic water pump

Similar Documents

Publication Publication Date Title
CN106151054B (en) Electrically driven pump
EP2839160B1 (en) Screw compressor
US2524269A (en) Pump
CN103746485B (en) A kind of cooling structure of permagnetic synchronous motor
CN102322448B (en) Cooling structure of motor-driven high-speed centrifugal air compressor
TWI329162B (en) Pump and liquid supply apparatus
CN202851381U (en) Direct current brushless magnetic force water pump
AU2012371538B2 (en) Compressor device, as well as the use of such an assembly
CN2830732Y (en) Shielded pipe pump
CN104769231B (en) Supplementary air cooling system and air pressure seal oil system for electric turbine complex technique machine
CN101373919A (en) Pump integral motor fan
CN202009303U (en) Oil pump motor
CN105065290B (en) Brushless direct-current magnetic water pump
CN201162705Y (en) Magnetic transmission petroleum chemical flow-process pump
CN101603536B (en) Electric vacuum pump for automobile
US6612815B2 (en) Electrically powered coolant pump
CN106481567B (en) Electric liquid pump
CN204681184U (en) Rotor water-cooling structure
CN204408102U (en) Permagnetic synchronous motor and include the helical-lobe compressor of this permagnetic synchronous motor
CN107725174A (en) Turbocharger
CN203717391U (en) Magnetic levitation high-speed tertiary flow centrifugal air blower
CN206035814U (en) Supplementary vacuum pump
CN103047134A (en) Non-oil-immersed air gap type hydraulic motor vane pump
CN104769221B (en) Vehicle electric liquid pump
CN103326512B (en) Centrifugal air compressor cooling structure driven by ultra-high-speed permanent magnet motor

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model