CN104405647A - Circulating pump - Google Patents
Circulating pump Download PDFInfo
- Publication number
- CN104405647A CN104405647A CN201410797767.1A CN201410797767A CN104405647A CN 104405647 A CN104405647 A CN 104405647A CN 201410797767 A CN201410797767 A CN 201410797767A CN 104405647 A CN104405647 A CN 104405647A
- Authority
- CN
- China
- Prior art keywords
- pump
- motor
- pump body
- recycle
- output shaft
- 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.)
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Classifications
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- 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
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
- A47L15/4225—Arrangements or adaption of recirculation or discharge pumps
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- 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
- F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
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- 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
- F04D29/08—Sealings
- F04D29/086—Sealings especially adapted for liquid pumps
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- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/406—Casings; Connections of working fluid especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a circulating pump. The circulating pump comprises a motor provided with an output shaft, wherein the output shaft of the motor has the rotating axis. The circulating pump is characterized by sequentially comprising an impeller, a pump body, the motor and a controller assembly along the rotating axis, wherein the impeller is fixedly mounted on the output shaft and rotates along with the output shaft; the pump body is fixedly mounted at one end of the motor, limits a pump body inside and comprises a central hole for the output shaft to transmit rotating power to the impeller; the motor comprises a stator and a rotor which is used for driving the output shaft to rotate; the controller assembly is fixedly mounted at the other end of the motor. Thus, the novel circulating pump structure is provided, and the circulating pump is simpler in structure, smaller in size, higher in working efficiency and lower in cost.
Description
Technical field
The present invention relates to a kind of recycle pump, relate more particularly to a kind of recycle pump for dishwasher.
Background technique
Along with global energy growing tension, energy-saving and emission-reduction theory is rooted in the hearts of the people day by day, and while household electric appliance bring convenience to people's lives, green home appliance also becomes the emphasis of each household electrical appliances Competition of manufacturers.
There is following shortcoming in current recycle pump: 1. due to the heat radiation of needs band fan blade, cause its complex structure, whole pump volume is comparatively large, thus causes dishwasher volume larger; 2. operating noise is large; 3., because rotor and stator are not separated, be used on recycle pump or draining pump, water can not enter in motor, otherwise can cause burn-down of electric motor, therefore pump assembly and motor not only need end face seal, radial direction also needs sealing, whole seal structure complex, causes recycle pump processing technology complicated.
In addition, existing rotor chamber lubricating system generally adopts oil lubrication, namely add solid lubrication fat at bearing place or add liquid lubricant in rotor chamber, but the control overflow of this kind of lubricating system to the position of refueling and volume read-out is higher, also stricter to the sealing requirements of rotor chamber on the other hand, because prevent the leakage of lubricant grease, avoid polluting working medium.Therefore, higher requirement is proposed to the lubrication of rotor chamber and the production technology of pump.
Therefore, need to develop a kind of structure relatively simple, small volume, working efficiency is higher, and operating noise is less, the life-span is longer and lower-cost dishwasher cycle pump.
Summary of the invention
The invention provides a kind of recycle pump, comprise the motor with output shaft, the output shaft of this motor has spin axis, it is characterized in that, this recycle pump comprises successively along spin axis: impeller, is configured to be fixedly installed to output shaft and rotates together with output shaft; The pump housing, is fixedly installed to one end of motor, and limits pump chamber in wherein, and the pump housing comprises center hole for output shaft transmitting rotary power to impeller; Motor, comprises stators and rotators, and described rotor is used for driver output axle and rotates; And controller assemblies, be fixedly installed to the other end of motor.
Thus provide a kind of recycle pump structure of novelty, its structure is relatively simple, and small volume, working efficiency is higher and cost is lower.During use, impeller is installed in the circulating line that dishwasher pump covers, and wheel rotation during work, realizes the discharge of water, namely realizes dishwasher cycle pump by water circulation use, has both saved water resources, can wash fully again.
Preferably, be provided with catch assembly in pump chamber, catch assembly comprises catch and is installed to output shaft to rotate together with output shaft.Preferably, catch assembly also comprises plastic shaft, and catch is fixedly mounted in plastic shaft, and wherein output shaft stretches in pump chamber through the center hole of the pump housing, and plastic shaft is fixedly installed to the end of output shaft to rotate with it.Preferably, the end away from motor of plastic shaft is stretched out through the center hole of the pump housing and is fixedly attached to impeller.Preferably, the end away from motor of plastic shaft comprises Y shape pillar, and this Y shape pillar to insert in the center hole of impeller and by screw by large for the support of the opening of Y shape pillar, thus fixing impeller.The setting of catch assembly, the residue be conducive in scouring water is discharged, and prevents recycle pump to be blocked then breaks down.The drainage pipe that draining pump chamber and dishwasher pump cover is connected, and when recycle pump work time, catch is also rotating along with motor, residue in scouring water can be stirred fully thus, be convenient to discharge, be unlikely to be deposited in recycle pump, cause the faults such as stall.
Preferably, the pump housing comprises upper pump casing and lower pump body, limits described pump chamber together with upper pump casing is installed to lower pump body, and wherein upper pump casing is adjacent with impeller, and lower pump body is fixedly installed to one end of motor.Preferably, upper pump casing has the two sections of arcwalls extended towards lower pump body, two arcwalls are positioned in same imaginary circles, thus form two sections of arc-shaped gaps between two arcwalls, wherein said two sections of arc-shaped gaps are asymmetric, and wherein lower pump body also has the two sections of arcwalls extended towards upper pump casing accordingly, to match with two sections of arcwalls of upper pump casing respectively, thus forming described pump chamber, described pump chamber is nonocclusive tubular pump chamber.Preferably, at least one arcwall of one in upper pump casing and lower pump body is provided with annular groove, another the arcwall corresponding with at least one arcwall described in upper pump casing and lower pump body is provided with annular boss, cooperatively interacts time together with annular groove and annular boss to be installed to lower pump body at upper pump casing.Preferably, at least one arcwall of one in upper pump casing and lower pump body is provided with opening, another the arcwall corresponding with at least one arcwall described in upper pump casing and lower pump body is provided with block, cooperatively interact time together with recess and block to be installed to lower pump body at upper pump casing, with by upper pump casing and lower pump body angular alignment.Preferably, one in upper pump casing and lower pump body is provided with the locating column extended towards another in upper pump casing and lower pump body, and the positioning hole on another in itself and upper pump casing and lower pump body is connected.
Preferably, recycle pump also comprises bearing unit, is installed in the center hole of lower pump body, and for supporting the output shaft extended from motor.Preferably, bearing unit comprises bearing sealed ring and bearing, bearing sealed ring is enclosed within the outside of bearing, bearing periphery has the step of outwardly convex, the center hole internal surface of lower pump body is provided with inwardly protruded step, and the step of bearing cooperates to keep seal ring in place together with the step of center hole, and centrally the inwall in hole is provided with the muscle of a series of projection, this muscle and seal ring produce interference fit, and retainer shaft bearing assembly is in the center hole of lower pump body thus.
Preferably, lower pump body is provided with priming hole, and water is by pump chamber, enter in the rotor chamber of motor through the priming hole on lower pump body.Preferably, priming hole is arranged equably around center hole circumference.Rotor chamber does not need strict sealing thus, enormously simplify production technology.Water can enter in rotor chamber simultaneously, and rotor chamber adopts water lubrication mode, relative to existing oil lubrication, does not need the injection of lubricant oil, simplifies processing technology, decrease cost of production, avoid the leakage of grease.
Preferably, controller assemblies comprises: outer covering; Controller, for controlling the operation of motor; With interior cover cap, wherein outer covering coordinates with interior cover cap, so that controller is enclosed within wherein, and interior cover cap has two link arms stretched out towards motor drive direction, link arm is respectively arranged with fastener, described fastener is clasped with the projection in outer surface of motor respectively, thus controller assemblies is fixed to motor.Preferably, interior cover cap also has the 3rd arm being parallel to link arm and extending, and it limits slender cavity, for holding the Hall transducer plate on controller, makes when being installed to motor, and this slender cavity and then Hall transducer plate are closely near the outer surface of stator.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from specification, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in specification, claims and accompanying drawing and obtain.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, together with embodiments of the present invention for explaining the present invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 shows the schematic perspective view of recycle pump according to an embodiment of the invention;
Fig. 2 shows the decomposing schematic representation of recycle pump according to an embodiment of the invention;
Fig. 3 shows the sectional view of recycle pump according to an embodiment of the invention;
Fig. 4 a shows the schematic diagram of the bearing unit of recycle pump;
Fig. 4 b shows the schematic diagram of the structure coordinated with bearing unit of the lower pump body of recycle pump;
Fig. 4 c shows the schematic diagram after bearing unit is installed to lower pump body;
Fig. 5 a shows the three-dimensional view of upper pump casing;
Fig. 5 b shows the three-dimensional view of lower pump body;
Fig. 6 a shows the partial sectional view of recycle pump according to an embodiment of the invention;
Fig. 6 b shows the three-dimensional view of catch assembly;
Fig. 7 a shows the partial sectional view of the controller assemblies be arranged on motor; And
Fig. 7 b shows the sectional view of controller assemblies.
Embodiment
Describe in detail with reference to the accompanying drawings according to each embodiment of the present invention.Here it is to be noted that it in the accompanying drawings, identical reference character is given there is identical or similar structure and function constituent element substantially, and the repeated description of will omit about them.Should be understood that term " on ", D score, " upwards ", " downwards " directional terms be description for the orientation shown in accompanying drawing, these orientation are not restrictive.If not otherwise specified, term " inwardly " herein, " outwards ", " interior ", " outward ", " inner side ", " outside " refer to the scope relative to part centre, such as using electrical axis as reference, interior and inner side refers to closer to or points to position or the orientation of electrical axis, outer and outside refers to orientation further from electrical axis or orientation, and for each position on electrical axis, outside or outside refers to further from motor center position.In addition, the term such as term " level ", " vertically ", " pendency " does not represent and requires parts abswolute level or pendency, but can tilt a little.As " level " only refers to its direction relatively " vertically " level more, be not that this structure of expression must level completely, but can tilt a little.Term " comprises A, B, C etc. " and only indicates included components A, the putting in order of B, C etc. successively, and is not precluded within the possibility comprising other parts between A and B and/or between B and C.Term " closely close " not necessarily requires zero distance, but for representing relation very contiguous between two parts, its gap is little of substantially ignoring, such as, within 2mm.
Fig. 1 shows the schematic perspective view of recycle pump 10 according to an embodiment of the invention.As shown in Figure 1, recycle pump 10 comprises water pump part and motor portion.Water pump part comprises the pump housing and impeller 1.The pump housing comprises upper pump casing 4 and lower pump body 5.Motor portion comprises motor 7 and controller assemblies 9.Motor 7 is preferably AC permanent magnet synchronous motor.The pump housing is the general cylindrical parts defining pump chamber, and it is adjacent with motor 7 and be fixed to motor 7 in side, and adjacent with impeller 1 at relative opposite side.Impeller 1 and the pump housing all have central hole.
Fig. 2 shows the decomposing schematic representation of recycle pump 10 according to an embodiment of the invention.As shown in Figure 2, motor 7 comprises rotating shaft, and this rotating shaft can rotate around the spin axis longitudinally through spindle central.Recycle pump comprises impeller 1, upper pump casing 4, lower pump body 5, motor 7 and controller assemblies 9 successively along the direction from impeller to motor on spin axis.Catch 3 is arranged in pump chamber.Lower pump body 5 is fixed to motor 7, and is arranged on motor output shaft by bearing unit 6.
Fig. 3 is the sectional view of recycle pump according to an embodiment of the invention.Motor 7 is permagnetic synchronous motor, comprises stators and rotators.Stators and rotators is separated by rotor chamber.
Continue with reference to figure 3, Fig. 4 a, Fig. 4 b and Fig. 4 c below.Lower pump body 5 is installed by screw 8 and is fixed to motor 7.Lower pump body 5 has center hole 51, and bearing unit 6 is assemblied on this center hole, for supporting the output shaft extended from motor.As shown in fig. 4 a, bearing unit 6 comprises bearing sealed ring 61 and bearing 62.The motor shaft 71 extended from motor 7 is through the bearing 62 of the bearing unit 6 be assemblied in lower pump body 5.
Have the uniform priming hole 511 of circumference around center hole 51 in the middle part of lower pump body 5 as shown in Figure 3, water is by pump chamber, and the rotor chamber 72 being entered motor by the priming hole 511 on lower pump body 5 is inner, plays the effect of lubricating bearing.Thus, in rotor chamber, water lubrication mode can be adopted, not need to add lubricant grease separately, thus simplify production process, reduce cost of production, also can not pollute working medium.
As shown in Figs. 4a and 4b, bearing 62 periphery has the step 621 of outwardly convex.Step 621 is annular boss.Bearing sealed ring 61 is enclosed within the outside of bearing 62, is positioned on step 621.Step 621 plays the effect of the stop member along a direction (being motor drive direction in this situation).The muscle 52 (as Fig. 4 b) of a series of projection of circumference uniform distribution on the downstream part inwall in centrally hole 51, this muscle 52 produces interference fit, retainer shaft bearing assembly 6 (as illustrated in fig. 4 c) thus with seal ring 61 outer wall in bearing unit 6.As illustrated in fig. 4 c, the center hole 51 of lower pump body 5 has inwardly protruded step at upstream position, and this step plays the effect of the stop member along another direction (being impeller direction in this situation).Thus, the step of bearing 62 cooperates to keep seal ring 61 together with the step of center hole 51.
Upper pump casing 4 and lower pump body 5 are assembled together, thus form nonocclusive tubular draining pump chamber.Lower pump body 5 has along away from the axially extended two sections of arcwalls of motor drive direction in the side of motor dorsad.Two arcwalls are positioned in same imaginary circles.Form two sections of arc-shaped gaps between two arcwall two ends, and this two intersegmental gap is asymmetric, namely gap that is narrower, opposite side, the gap of side is wider.That is, the angle that an intersegmental gap is right is less, and the angle that another intersegmental gap is right is larger.Upper pump casing 4 axially extends two ends arcwall towards motor drive direction on motor side, and it is corresponding respectively with section arcwall of two on lower pump body 5.When upper pump casing 4 and lower pump body 5 assemble, two sections of arcwalls on upper pump casing 4 are connected with section arcwall of two on lower pump body 5 respectively, and the arcwall of the upper lower pump body be connected is basically identical in length and circumferential position, when being namely installed to together, two arcwalls are substantially overlapping.The arcwall of upper pump casing 4 at radial outside portion around the corresponding arcwall of lower pump body.
As shown in figure 5a and 5b, an arcwall of lower pump body 5 is provided with annular groove 53, and the corresponding arcwall of upper pump casing 4 is provided with annular boss 41, cooperatively interacts time together with the boss 41 of upper pump casing and the groove 53 of lower pump body to be installed to lower pump body 5 at upper pump casing 4.In addition, the arcwall on lower pump body is provided with opening 54, and the block 42 stretched out with the internal surface of the arcwall from upper pump casing coordinates.In addition, lower pump body 5 is connected along the positioning hole on the locating column stretched out away from motor drive direction and upper pump casing 4.This structure can ensure upper pump casing and lower pump body angular alignment thus, and easily engages.
Catch 3 is arranged in draining pump chamber.As shown in figure 6 a and 6b, the end winding support ground cover of this motor shaft has a plastic shaft 31, and namely one end of plastic shaft is connected to motor shaft.Plastic shaft 31 has central hole, and motor shaft is interference fitted in this perforation.Catch is socketed in plastic shaft 31, and can rotate thereupon.Thus, catch can rotate with motor shaft.Alternatively, catch also can be integrally formed with plastic shaft 31.Plastic shaft 31 the other end inserts in impeller 1, and is fixed with it by screw 2.Preferably, this other end of plastic shaft 31 is Y shape pillar, by large for the support of the opening of Y shape pillar after screw 2 assembles, thus fixing impeller 1.This kind is linked and packed technique simply, and impeller is fixed.Thus, impeller can rotate with motor shaft.
Impeller is installed in the circulating line that dishwasher pump covers, and wheel rotation during work, realizes the discharge of water, namely realizes dishwasher cycle pump by water circulation use, has both saved water resources, can wash fully again.The drainage pipe that draining pump chamber and dishwasher pump cover is connected, and when recycle pump work time, catch is also rotating along with motor, residue in scouring water can be stirred fully thus, be convenient to discharge, be unlikely to be deposited in recycle pump, cause the faults such as stall.
Below with reference to Fig. 7 a and 7b.Controller assemblies 9 comprises outer covering 91, controller 92 and interior cover cap 93.Outer covering 91 is adaptive with interior cover cap 93, is enclosed within wherein, avoids controller 92 and contact with humid air etc.Interior cover cap 93 has two link arms stretched out towards motor drive direction, link arm is respectively arranged with fastener 931.Fastener 931 is clasped with the projection 711 at stator module 71 place on motor 7 outer surface respectively, thus controller assemblies 9 is fixed to motor 7.Interior cover cap 93 also has the 3rd arm being parallel to link arm and extending, and it limits slender cavity 932, for holding the Hall transducer plate 921 on controller 92.When being installed to motor, this slender cavity 932 and then Hall transducer plate 921 are closely near the outer surface of stator module 71.This kind of compact structure of controller assemblies, simple, be connected closely with motor, reduce the volume of whole recycle pump.
Controller is alternating-current controller, comprises switching device, current detecting part, position detecting module and control gear.Motor, switching device and current detecting part are connected in series, and current detecting part detects the stator current flowing through the staor winding of single-phase permanent-magnet synchronous motor.Position detecting module obtains the position information of rotor magnetic pole.The stator current that the position information of the rotor magnetic pole that control gear receiving position sensor exports and current detecting part provide.The position of the rotor magnetic pole corresponding to peak value of the counterelectromotive force of control gear determination staor winding, determine the position information of the rotor magnetic pole corresponding to peak value of stator current, and the position of the position of rotor magnetic pole corresponding to the peak value of stator current and the rotor magnetic pole corresponding to the peak value of counterelectromotive force, regulates the Trigger Angle being used for triggering and conducting switching device.Controlled startup and the directional-rotation of motor by controller, eliminate the startup chamber of former permagnetic synchronous motor, simplify electric machine structure.
Each embodiment of the present invention is described in detail above.But, it should be appreciated by those skilled in the art that without departing from the principles and spirit of the present invention, various amendment can be carried out to these embodiments, combination or sub-portfolio, and such amendment should fall within the scope of the present invention.
Claims (16)
1. a recycle pump, comprises the motor with output shaft, and the output shaft of this motor has spin axis, it is characterized in that, this recycle pump comprises successively along spin axis:
Impeller, is configured to be fixedly installed to output shaft and rotates together with output shaft;
The pump housing, is fixedly installed to one end of motor, and limits pump chamber in wherein, and the pump housing comprises center hole for output shaft transmitting rotary power to impeller;
Motor, comprises stators and rotators, and described motor is used for driver output axle and rotates; And
Controller assemblies, is fixedly installed to the other end of motor.
2. recycle pump as claimed in claim 1, it is characterized in that, be provided with catch assembly in pump chamber, catch assembly comprises catch and is installed to output shaft to rotate together with output shaft.
3. recycle pump as claimed in claim 2, it is characterized in that, catch assembly also comprises plastic shaft, and catch is fixedly mounted in plastic shaft, wherein output shaft stretches in pump chamber through the center hole of the pump housing, and plastic shaft is fixedly installed to the end of output shaft to rotate with it.
4. recycle pump as claimed in claim 3, is characterized in that, the end away from motor of plastic shaft is stretched out through the center hole of the pump housing and is fixedly attached to impeller.
5. recycle pump as claimed in claim 4, it is characterized in that, the end away from motor of plastic shaft comprises Y shape pillar, and this Y shape pillar to insert in the center hole of impeller and by screw by large for the support of the opening of Y shape pillar, thus fixing impeller.
6. the recycle pump according to any one of claim 1-5, is characterized in that, the pump housing comprises upper pump casing and lower pump body, limits described pump chamber together with upper pump casing is installed to lower pump body, and wherein upper pump casing is adjacent with impeller, and lower pump body is fixedly installed to one end of motor.
7. recycle pump as claimed in claim 6, it is characterized in that, upper pump casing has the two sections of arcwalls extended towards lower pump body, two arcwalls are positioned in same imaginary circles, thus form two sections of arc-shaped gaps between two arcwalls, and wherein said two sections of arc-shaped gaps are asymmetric, wherein lower pump body has the two sections of arcwalls extended towards upper pump casing accordingly, to match with two sections of arcwalls of upper pump casing respectively, thus form described pump chamber, described pump chamber is nonocclusive tubular pump chamber.
8. recycle pump as claimed in claim 7, it is characterized in that, at least one arcwall of one in upper pump casing and lower pump body is provided with annular groove, another the arcwall corresponding with at least one arcwall described in upper pump casing and lower pump body is provided with annular boss, cooperatively interacts time together with annular groove and annular boss to be installed to lower pump body at upper pump casing.
9. recycle pump as claimed in claim 8, it is characterized in that, at least one arcwall of one in upper pump casing and lower pump body is provided with opening, another the arcwall corresponding with at least one arcwall described in upper pump casing and lower pump body is provided with block, cooperatively interact time together with recess and block to be installed to lower pump body at upper pump casing, with by upper pump casing and lower pump body angular alignment.
10. recycle pump as claimed in claim 9, is characterized in that, one in upper pump casing and lower pump body is provided with the locating column extended towards another in upper pump casing and lower pump body, and the positioning hole on another in itself and upper pump casing and lower pump body is connected.
11. recycle pumps as claimed in claim 6, is characterized in that, also comprise bearing unit, be installed in the center hole of lower pump body, and for supporting the output shaft extended from motor.
12. recycle pumps as claimed in claim 11, it is characterized in that, bearing unit comprises bearing sealed ring and bearing, bearing sealed ring is enclosed within the outside of bearing, bearing periphery has the step of outwardly convex, the center hole internal surface of lower pump body is provided with inwardly protruded step, the step of bearing cooperates to keep seal ring in place together with the step of center hole, centrally the inwall in hole is provided with the muscle of a series of projection, this muscle and seal ring produce interference fit, and retainer shaft bearing assembly is in the center hole of lower pump body thus.
13. recycle pumps as claimed in claim 6, it is characterized in that, lower pump body is provided with priming hole, and water is by pump chamber, enter in the rotor chamber of motor through the priming hole on lower pump body.
14. recycle pumps as claimed in claim 13, it is characterized in that, priming hole is arranged equably around center hole circumference.
15. recycle pumps according to any one of claim 1-5, it is characterized in that, controller assemblies comprises: outer covering; Controller, for controlling the operation of motor; With interior cover cap, wherein outer covering coordinates with interior cover cap, so that controller is enclosed within wherein, and interior cover cap has two link arms stretched out towards motor drive direction, link arm is respectively arranged with fastener, described fastener is clasped with the projection in outer surface of motor respectively, thus controller assemblies is fixed to motor.
16. recycle pumps as claimed in claim 15, it is characterized in that, interior cover cap also has the 3rd arm being parallel to link arm and extending, it limits slender cavity, for holding the Hall transducer plate on controller, make when being installed to motor, this slender cavity and then Hall transducer plate are closely near the outer surface of stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410797767.1A CN104405647B (en) | 2014-12-18 | 2014-12-18 | Circulating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410797767.1A CN104405647B (en) | 2014-12-18 | 2014-12-18 | Circulating pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104405647A true CN104405647A (en) | 2015-03-11 |
| CN104405647B CN104405647B (en) | 2017-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410797767.1A Active CN104405647B (en) | 2014-12-18 | 2014-12-18 | Circulating pump |
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| Country | Link |
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| CN (1) | CN104405647B (en) |
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| CN107579617A (en) * | 2017-08-31 | 2018-01-12 | 新乡市巨能合成材料有限公司 | A kind of vaccum pump motor baffle plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107579617A (en) * | 2017-08-31 | 2018-01-12 | 新乡市巨能合成材料有限公司 | A kind of vaccum pump motor baffle plate |
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| Publication number | Publication date |
|---|---|
| CN104405647B (en) | 2017-09-29 |
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