CN103438006B - Miniature hot-water recycle pump - Google Patents

Miniature hot-water recycle pump Download PDF

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Publication number
CN103438006B
CN103438006B CN201310375425.6A CN201310375425A CN103438006B CN 103438006 B CN103438006 B CN 103438006B CN 201310375425 A CN201310375425 A CN 201310375425A CN 103438006 B CN103438006 B CN 103438006B
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CN
China
Prior art keywords
rotor
housing
liquid
water
permanent magnet
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Expired - Fee Related
Application number
CN201310375425.6A
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Chinese (zh)
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CN103438006A (en
Inventor
刘宗锋
李玉善
赵刚
谢凤芹
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Shandong University of Science and Technology
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Shandong University of Science and Technology
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Priority to CN201310375425.6A priority Critical patent/CN103438006B/en
Publication of CN103438006A publication Critical patent/CN103438006A/en
Application granted granted Critical
Publication of CN103438006B publication Critical patent/CN103438006B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A kind of miniature hot-water recycle pump, comprises motor stator, rotor, helical blade, and limit is covered; Described motor stator, described rotor, Bian Gai, controller, composition permanent-magnet brushless DC electric machine, rotor (17) is hollow-core construction, and rotor (17) inner chamber is fixedly connected with helical blade; Limit, left and right lid is threaded connection housing, the inner chamber of composition sealing, and rotor is rotary work in described inner chamber, while be stamped water nozzle, as the mouth of turnover liquid.By changing the sense of rotation of rotor, just can change the turnover direction of liquid, realizing the bidirectional circulating function of miniature hot-water recycle pump; Rotor axis of electric is hollow-core construction, and the inner chamber of rotor axis of electric installs the helical blade of water pump, and motor and water pump are integral structures; Water pump type rotor axis of electric rotates in the Seal cage of Bian Gai, housing, is filled with liquid in Seal cage, and liquid has carried out cooling action to motor, serves lubrication to bearing.

Description

Miniature hot-water recycle pump
Technical field
The present invention relates to a kind of micro pump, particularly relate to a kind of Miniature electric water pump, be mainly used in liquid-circulating.
Background technique
The patent that application number is 200710028612.1, denomination of invention is " micro pump with sink ", a kind of micro pump is disclosed, it comprises and is provided with cavity and be installed in the direct current generator of the rotating shaft in cavity, the motor housing of accommodating direct current generator, the rear case component be installed on motor housing, the front cover component be assemblied on rear case component, and the inner shoe assembly be arranged between front cover component and rear case component and middleware component.The rotating shaft of direct current generator is provided with fan, rear case component is provided with ventilated port, the antetheca of direct current generator and rear wall are respectively equipped with intake grill and exhaust outlet, the corresponding exhaust outlet of motor housing is provided with some radiation holes, and ventilated port, intake grill, cavity, exhaust outlet and radiation hole form the air-flow path of a conducting.During micro pump work, fan together rotates with rotating shaft, and air enters the cavity of direct current generator from ventilated port and intake grill, and drains in environment from exhaust outlet and radiation hole under the pressure of fan drives, the heat produced when can take away direct current generator running whereby.
The patent that application number is 200810063246.8, denomination of invention is " a kind of micro pump ", a kind of micro pump is disclosed, it comprises motor, housing, impeller and end cap, inner walls is provided with flange and the boss of evagination, housing exterior walls is tangentially provided with water outlet, housing peripheral wall has parallel with housing end face, be positioned at water level hole above water outlet, water level hole lower edge flushes with boss upper limb; Impeller is made up of the impeller shaft of integrative-structure, chassis and some blades, and impeller shaft is positioned at above chassis, and some blades are distributed in below chassis, and chassis also has some vents; Be provided with cavity in end cap, and its end face has center hole; Motor, impeller and end cap are arranged in housing, and wherein motor shaft is positioned at impeller shaft drive fit, and the chassis of impeller and blade are between the boss and the end face of end cap of housing, contactless between impeller and housing, end cap; Water outlet communicates with the cavity formed between boss and end cap.The present invention have structure simple, without the need to Sealing, long service life, advantage that noise is low.
The patent that application number is 201110189669.6, denomination of invention is " a kind of Straightway micro-water pump ", disclose a kind of Straightway micro-water pump, motor is placed in waterproof sealing chamber by completely, carrys out drives impeller by magnetic drives, and sealing effect is better.And the present invention's drive motor of Hall motor as water pump, have that the life-span is long, noise is low, can used in combination with IC and LED, by the feature of IC Direct driver, various artwork can be applicable to, if for outdoor, then available solar energy is powered.
Application number is 200320124207.7, model utility name is called the patent of " a kind of Straightway micro-water pump ", and disclose a kind of Straightway micro-water pump, motor is placed in waterproof sealing chamber by completely, carrys out drives impeller by magnetic drives, and sealing effect is better.And the utility model drive motor of Hall motor as water pump, have that the life-span is long, noise is low, can used in combination with IC and LED, by the feature of IC Direct driver, various artwork can be applicable to, if for outdoor, then available solar energy is powered.
Application number is 201120238095.2, model utility name is called the patent of " micro pump ", a kind of micro pump is disclosed, comprise motor, housing, be provided with the upper cover of inlet pipeline and rising pipe, motor is fixed on the bottom surface of housing, motor driving shaft to stretch in housing and driving gear is housed, driving gear and a driven gear are meshed, and a balance staff lower end oblique cutting is on driven gear; Top along housing is connected with water pocket seat, valve seat and upper cover in turn and interfixes, and the centre of water pocket seat is provided with through hole, and water pocket seat intermediate throughholes internal surface bottom is the cone-shaped outwards stretched, and the water pocket that bottom is provided with connection bump is enclosed within the through hole of water pocket seat; Valve seat be equipped with into water and go out Water Check Valve sheet; A crank bottom is enclosed within the upper end of balance staff, the connection bump of edge conjunction water pocket bottom; Be provided with soft water-impermeable piece above crank and between water pocket bottom, the middle cover of water-impermeable piece in the connection bump of water pocket bottom, edge is crushed between water pocket seat lower end surface and housing upper-end surface; This water pump long service life, electrical security are good, applied widely.
In existing published patented technology, motor, in order to dispel the heat, add radiation fan etc., reduces the efficiency of motor, and the driving of motor and water pump is gear transmission or the mechanical transmission such as Chain conveyer or V belt translation, reduces transmission efficiency.The present invention adopts rotor axis of electric and water pump integral structure, compact structure, and Fabric utilization is high, the rotation of rotor, and directly drive the rotation of water pump helical blade, not through intermediate conveyor, mechanical efficiency is high.Rotor rotates in the Seal cage of Bian Gai, housing, is filled with liquid in Seal cage, and liquid has carried out cooling action to motor, serves lubrication to bearing.The square threaded form of the helical blade criteria of right and wrong of water pump, thread height is large, diameter of thread is little, and thread height is far longer than diameter of thread, due to the centrifugal action of the liquid of rotation, both ensure that out the amount of liquid, turn improve the utilization ratio of water pump inner chamber, reduce the resistance of circulation, by changing the sense of rotation of rotor, just can change the turnover direction of liquid, realize the bidirectional circulating function of miniature hot-water recycle pump.
Summary of the invention
The object of the invention is, miniature hot-water recycle pump of the present invention, by changing the sense of rotation of rotor, just can change the turnover direction of liquid, realizing the bidirectional circulating function of miniature hot-water recycle pump; Rotor axis of electric is hollow-core construction, and the inner chamber of rotor axis of electric installs the helical blade of water pump, and motor and water pump are integral structures, compact structure, and Fabric utilization is high; Water pump type rotor axis of electric rotates in the Seal cage of Bian Gai, housing, is filled with liquid in Seal cage, and liquid has carried out cooling action to motor, serves lubrication to bearing.
To achieve these goals, the present invention is by the following technical solutions:
A kind of miniature hot-water recycle pump, comprises motor stator, rotor, helical blade, Bian Gai, housing, controller, Permanent Magnet Steel, Permanent Magnet Steel friction top, sealing bulking agent; Described motor stator, the stator silicon steel plate comprise housing, connecting in housing, stator silicon steel plate is provided with 3 Hall transducers, stator silicon steel plate has in stator slot, stator slot and be wound with enameled cable; Described rotor, comprises the Permanent Magnet Steel that rotor, rotor are installed; Limit, left and right lid is threaded connection housing, the inner chamber of composition sealing, described rotor is rotary work in described inner chamber, described rotor is hollow-core construction, the rotation of described rotor, drive the rotation of water pump helical blade, the water nozzle that liquid flowed into, was recycled to the other end from the water nozzle of water pump one end is pumped; Change the sense of rotation of permanent-magnet brushless DC electric machine rotor, just change liquid into and out of direction, just can change nozzle and spout, make water pump have the function of bidirectional circulating pump; It is characterized in that: the left and right limit lid that each installation structure is identical respectively of housing, limit lid is threaded connection with housing, described permanent-magnet brushless DC electric machine carries out work by the control of controller, be slowly be increased to maximum value in the control voltage of startup control device, the effective value of control voltage is 1V-3.5V; Be filled with liquid in Seal cage, liquid has carried out cooling action to motor, serves lubrication to bearing, due to the centrifugal action of the liquid of rotation, both ensure that out the amount of liquid, and has turn improved the utilization ratio of water pump inner chamber, reduces the resistance of circulation; Be provided with helical blade in rotor, rotor and helical blade are integrative-structures, compact structure, and Fabric utilization is high; The square threaded form of the helical blade criteria of right and wrong, thread height is large, and diameter of thread is little, and thread height is far longer than diameter of thread, and the ratio of thread height and diameter of thread is greater than 1.5 times; While be stamped water nozzle, limit lid is integrative-structure with water nozzle; Screw hole while covered, screw in hole with spanner insertion and screw; There are 4 bases the below of housing, base has U-groove bevel, be fixed through described U-groove bevel with bolt, housing has sealed end, and the hole in sealed end communicates with wire outlet hole, and sealed end is bolt arrangement, screwed by screw thread and seal, have sealing bulking agent in sealed end endoporus, sealing bulking agent seals, and wire outlet hole is communicated to motor internal; Permanent Magnet Steel sticks with glue on the cylindrical of rotor, limited location step on Permanent Magnet Steel, Permanent Magnet Steel friction top is pressed on described limited step, secures Permanent Magnet Steel, screw in housing screw in tapped hole on Permanent Magnet Steel friction top to compress, secure Permanent Magnet Steel friction top.
Accompanying drawing explanation
Fig. 1 is appearance schematic diagram of the present invention;
Fig. 2 is assembling schematic diagram of the present invention;
Fig. 3 is limit of the present invention lid schematic diagram;
Fig. 4 is bearing schematic diagram of the present invention;
Fig. 5 is bearing schematic diagram of the present invention;
Fig. 6 is body diagram of the present invention;
Fig. 7 is the worm's eye view of Fig. 6;
Fig. 8 is stator silicon steel plate figure of the present invention;
Fig. 9 is the left view of Fig. 8;
Figure 10 is controller schematic diagram of the present invention;
Figure 11 is rotor schematic diagram of the present invention;
Figure 12 is the left view of Figure 11;
Figure 13 is Permanent Magnet Steel schematic diagram of the present invention;
Figure 14 is the worm's eye view of Figure 13;
Figure 15 is helical blade schematic diagram of the present invention;
Figure 16 is Permanent Magnet Steel friction top schematic diagram of the present invention;
Figure 17 is the left view of Figure 16.
In accompanying drawing: 1, Bian Gai; 2, housing; 3, controller; 4, water nozzle; 5, tapered roller bearing; 6, deep groove ball bearing; 7, wire outlet hole; 8, sealed end; 9, base; 10, fixed groove; 11, stator slot; 12, hole is screwed; 13, motor lines; 14, controller line; 15, enameled cable; 16, stator silicon steel plate; 17, rotor; 18, Permanent Magnet Steel; 19, collet threaded hole; 20, Permanent Magnet Steel friction top; 21, helical blade; 22, housing screw; 23, bulking agent is sealed.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Miniature hot-water recycle pump of the present invention, as accompanying drawing 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 12, Figure 13, Figure 14, Figure 15, Figure 16, shown in Figure 17, comprising: limit lid 1, housing 2, controller 3, water nozzle 4, tapered roller bearing 5, deep groove ball bearing 6, wire outlet hole 7, sealed end 8, base 9, fixed groove 10, stator slot 11, screw hole 12, motor lines 13, controller line 14, enameled cable 15, stator silicon steel plate 16, rotor 17, Permanent Magnet Steel 18, collet threaded hole 19, Permanent Magnet Steel friction top 20, helical blade 21, housing screw 22, sealing bulking agent 23.
Assembly relation:
Left and right each installation limit lid 1 respectively of housing 2, limit lid 1 is threaded connection with housing 2, and limit lid 1 screws hole 12, inserts to screw in hole 12 to screw with spanner; There are 4 bases 9 below of housing 2, base 9 has U-groove bevel, be fixed through described U-groove bevel with bolt, housing 2 has sealed end 8, the hole in sealed end 8 communicates with wire outlet hole 7, and sealed end 8 is bolt arrangements, screwed by screw thread and seal, have sealing bulking agent 23 in sealed end 8 endoporus, sealing bulking agent 23 seals, and wire outlet hole 7 is communicated to motor internal.
The 6000 serial bearings that the 30000 serial bearings that tapered roller bearing 5 is GB/T297-94 standards, deep groove ball bearing 6 are GB/T296-94 standards are all antirust bearings, can with the place of lubricating in a liquid.
Limit lid 1 has water nozzle 4, and limit lid 1 is integrative-structures with water nozzle 4, and limit lid 1 is identical two of structure in the present invention, is divided into left and right to install.
Connecting stator silicon steel sheet 16 in housing 2, the edge of stator silicon steel plate 16 there is fixed groove 10, pin is by fixed groove 10 reinforcement effects, stator silicon steel plate 16 is reinforced at housing 2 inwall, stator silicon steel plate 16 is provided with 3 Hall transducers, stator silicon steel plate 16 has stator slot 11, and stator slot 11 is wound with enameled cable 15, the composition such as housing 2, stator silicon steel plate 16, enameled cable 15, Hall transducer motor stator; Rotor 17 is installed Permanent Magnet Steel 18, composition rotor, described motor stator, described rotor, limit, left and right lid 1 form permanent-magnet brushless DC electric machine with controller 3.The working power of described permanent-magnet brushless DC electric machine is DC electrical source, carries out work by the control of controller 3, and be slowly be increased to maximum value in the control voltage of startup control device, the effective value of control voltage is 1V-3.5V, rotor 17 is hollow-core constructions, helical blade 21 is installed in rotor 17, rotor 17 and helical blade 21 are integrative-structures, the square threaded form of helical blade 21 criteria of right and wrong, thread height is large, diameter of thread is little, thread height is far longer than diameter of thread, the ratio of thread height and diameter of thread is greater than 1.5 times, due to the centrifugal action of the liquid of rotation, both ensure that out the amount of liquid, turn improve the utilization ratio of water pump inner chamber, reduce the resistance of circulation, when described permanent-magnet brushless DC electric machine works, rotor 17 drives helical blade 21 spiral, liquid is pumped, make liquid flow into from the water nozzle 4 of one end of miniature hot-water recycle pump of the present invention the water nozzle 4 being recycled to the other end to flow out, change the sense of rotation of rotor 17, just change the turnover direction of liquid, miniature hot-water recycle pump of the present invention is bidirectional circulating pump.
Permanent Magnet Steel 18 sticks with glue on the cylindrical of rotor 17, limited location step on Permanent Magnet Steel 18, Permanent Magnet Steel friction top 20 is pressed on described limited step, secure Permanent Magnet Steel 18, screw in housing screw 22 in tapped hole on Permanent Magnet Steel friction top 20 to compress, secure Permanent Magnet Steel friction top 20, housing screw 22 is GB71-85 series of bolts.
Advantageous effect of the present invention:
Miniature hot-water recycle pump of the present invention, the helical blade of water pump is at the inner chamber of rotor 17 hollow shaft, water pump and rotor are aggregates, integrative-structure, compact structure, Fabric utilization is high, the rotation of rotor, the rotation of direct drive water pump helical blade, not by intermediate conveyor, mechanical efficiency is high.Limit, left and right lid, housing are seal structures, rotor rotates in described seal structure, gap is had between limit lid and rotor, the inner chamber of the liquid filling miniature hot-water recycle pump in miniature hot-water recycle pump, tapered roller bearing and deep groove ball bearing are lubricated, described liquid is circulation, surrounds stator silicon steel plate, enameled cable, plays the effect of cooling.From right water nozzle direction of the present invention, when rotor clockwise direction rotates, helical blade lifting liquid flows from left to right, and right water nozzle is water outlet, and left water nozzle is water intake; From right water nozzle direction of the present invention, when rotor counterclockwise rotates, helical blade lifting liquid flows from right to left, and left water nozzle is water outlet, and right water nozzle is water intake; By changing the sense of rotation of rotor, just can change the turnover direction of liquid, realizing the bidirectional circulating function of miniature hot-water recycle pump.

Claims (1)

1. a miniature hot-water recycle pump, comprises motor stator, rotor, helical blade, Bian Gai, housing, controller, Permanent Magnet Steel, Permanent Magnet Steel friction top, sealing bulking agent; Described motor stator, the stator silicon steel plate (16) comprise housing, connecting in housing, stator silicon steel plate (16) is provided with 3 Hall transducers, stator silicon steel plate (16) has in stator slot, stator slot and is wound with enameled cable; Described rotor, comprises rotor (17), the upper Permanent Magnet Steel installed of rotor (17); Limit, left and right lid is threaded connection housing, the inner chamber of composition sealing, described rotor is rotary work in described inner chamber, described rotor is hollow-core construction, the rotation of described rotor, drive the rotation of water pump helical blade, the water nozzle (4) that liquid flowed into, was recycled to the other end from the water nozzle (4) of water pump one end is pumped; Change permanent-magnet brushless DC electric machine rotor (17) sense of rotation, just change liquid into and out of direction, just can change nozzle and spout, make water pump have the function of bidirectional circulating pump;
It is characterized in that: the left and right limit lid that each installation structure is identical respectively of housing, limit lid is threaded connection with housing, described permanent-magnet brushless DC electric machine carries out work by the control of controller, be slowly be increased to maximum value in the control voltage of startup control device, the effective value of control voltage is 1V-3.5V; Be filled with liquid in Seal cage, liquid has carried out cooling action to motor, serves lubrication to bearing, due to the centrifugal action of the liquid of rotation, both ensure that out the amount of liquid, and has turn improved the utilization ratio of water pump inner chamber, reduces the resistance of circulation; Rotor is provided with helical blade in (17), and rotor (17) and helical blade are integrative-structures, compact structure, and Fabric utilization is high; The square threaded form of the helical blade criteria of right and wrong, thread height is large, and diameter of thread is little, and thread height is far longer than diameter of thread, and the ratio of thread height and diameter of thread is greater than 1.5 times; While be stamped water nozzle (4), limit lid is integrative-structure with water nozzle (4); Screw hole while covered, screw in hole with spanner insertion and screw; There are 4 bases (9) below of housing, base (9) has U-groove bevel, be fixed through described U-groove bevel with bolt, housing there is sealed end (8), hole in sealed end (8) communicates with wire outlet hole (7), sealed end (8) is bolt arrangement, screwed by screw thread and seal, sealing bulking agent (23) is had in sealed end (8) endoporus, sealing bulking agent (23) seals, and wire outlet hole (7) is communicated to motor internal; Permanent Magnet Steel sticks with glue on the cylindrical of rotor (17), limited location step on Permanent Magnet Steel, Permanent Magnet Steel friction top is pressed on described limited step, secure Permanent Magnet Steel, screw in housing screw (22) in tapped hole on Permanent Magnet Steel friction top to compress, secure Permanent Magnet Steel friction top.
CN201310375425.6A 2013-08-20 2013-08-20 Miniature hot-water recycle pump Expired - Fee Related CN103438006B (en)

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CN103438006B true CN103438006B (en) 2016-04-06

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CN105576899B (en) * 2015-11-06 2018-03-13 佛山市顺德区精逸金属制品有限公司 Height radiating waterproof machine
CN105938739A (en) * 2016-06-23 2016-09-14 袁望画 Superconductor
CN106110546A (en) * 2016-08-22 2016-11-16 张雷 A kind of fire plant
CN106949069B (en) * 2017-05-15 2017-11-10 华中科技大学 A kind of cutting bearing hydrodynamic floating mechanical pump
US20200056615A1 (en) * 2018-08-16 2020-02-20 Saudi Arabian Oil Company Motorized pump
CN112761964A (en) * 2020-12-18 2021-05-07 南通华兴石油仪器有限公司 Constant-speed circulation ultrahigh-pressure pump for wellhead fluid
CN114876818A (en) * 2022-06-08 2022-08-09 朱维富 Spiral impeller for water pump

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87203494U (en) * 1987-07-30 1988-08-17 温衍迂 Pump with hollow-rotor motor
CN1076765A (en) * 1992-03-25 1993-09-29 付英杰 Multipurpose asynchronous electrical motor centrifugal pump
CN102072168A (en) * 2009-11-19 2011-05-25 现代自动车株式会社 Electric water pump
CN201877987U (en) * 2010-03-30 2011-06-22 浙江三星机电股份有限公司 Brushless direct current motor for drum type washing machine
CN202818054U (en) * 2012-07-19 2013-03-20 春城控股集团有限公司 Brushless permanent magnet DC motor with stator and rotor tooth crowns provided with skewed slot windings
CN103161734A (en) * 2011-12-08 2013-06-19 德昌电机(深圳)有限公司 Screw pump and boiler heat cycle system with same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3438747A1 (en) * 1984-10-23 1986-04-24 Standard Elektrik Lorenz Ag, 7000 Stuttgart ELECTRONICALLY COMMUTED, COLLECTORLESS DC MOTOR

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87203494U (en) * 1987-07-30 1988-08-17 温衍迂 Pump with hollow-rotor motor
CN1076765A (en) * 1992-03-25 1993-09-29 付英杰 Multipurpose asynchronous electrical motor centrifugal pump
CN102072168A (en) * 2009-11-19 2011-05-25 现代自动车株式会社 Electric water pump
CN201877987U (en) * 2010-03-30 2011-06-22 浙江三星机电股份有限公司 Brushless direct current motor for drum type washing machine
CN103161734A (en) * 2011-12-08 2013-06-19 德昌电机(深圳)有限公司 Screw pump and boiler heat cycle system with same
CN202818054U (en) * 2012-07-19 2013-03-20 春城控股集团有限公司 Brushless permanent magnet DC motor with stator and rotor tooth crowns provided with skewed slot windings

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