CN1252974A - Pump setting - Google Patents
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- CN1252974A CN1252974A CN 99104408 CN99104408A CN1252974A CN 1252974 A CN1252974 A CN 1252974A CN 99104408 CN99104408 CN 99104408 CN 99104408 A CN99104408 A CN 99104408A CN 1252974 A CN1252974 A CN 1252974A
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Abstract
The invention relates to a pumping apparatus to pump up a liquid in a container by a pump. The pumping apparatus comprises a pump chamber and a motor portion formed integrally, so as to provide a safe and small-sized apparatus and save cost by its simple structure. A pump chamber communicates through its inlet with a container which a liquid is put in. An impeller and a rotor of a motor portion are connected on a shaft and rotatable in the pump chamber , and a stator of the motor portion is arranged around the pump chamber , so that substantially, the motor portion and the pump chamber 7 are integrally formed.
Description
The present invention relates to following pump installation, promptly will be contained in liquid sucking-off in the container by pump, this pump installation is suitable for electric hot water bottle etc.
In the past, in the pump installation that is suitable for electric hot water bottle etc., pump and motor generally are provided with respectively.Make the water generates circulation though pump is arranged in the water route, motor becomes the reason of faults such as getting rusty when being soaked in the water.Be provided with respectively as pump and motor, and motor not being soaked in the structure in the water, is the magnetic force that utilizes magnet, crosses the next door that surrounds the water route, the driving force of motor is passed to the impeller of pump.
Figure 11 is the longitudinal sectional drawing of existing pump installation.In Figure 11, the storage container of the water (boiling water) in the electric hot water bottle is held in label 1 expression, label 2 expressions are sent the aqueduct of water (boiling water) from the bottom of storage container 1, and label 3 expressions are arranged at the outlet upright rear portion, discharge water (boiling water) in the aqueduct 2.Label 4 expressions are connected with power supply, produce the motor of driving force, and label 5 expressions are arranged at the inside of this aqueduct 2, produce the centrifugal impeller of current.Label 6 is the next door of the nonmagnetic material between centrifugal impeller 5 and motor part 4, label 7 expression pump chambers, and it is arranged between storage container 1 and the aqueduct 2, and the inside of this pump chamber is provided with centrifugal impeller 5.Label 8a represents to be fixedly attached to the discoid magnet at the rotating shaft top of motor part 4, and label 8b represents to be fixed in the discoid magnet of the bottom surface of centrifugal impeller 5.The next door 6 of this discoid magnet 8a, 8b clamping nonmagnetic material, they are oppositely arranged in mutual close mode.Label 9 expression heaters, it is used to make the liquid of storage container 1 inside, rises such as the temperature of water etc., and this heater is arranged at the bottom surface of storage container 1.Here, pump is the form of the impeller 5 of employing centrifugal type, but also can be axial flow type, screw type.
Action to the pump installation of this existing example is described below.Because motor part 4 is connected with power supply, by opening the mode of operation of beginning etc., make it rotate driving like this.Because discoid magnet 8a is fixed on the rotating shaft of motor part 4, discoid like this magnet 8a is also with these motor part 4 rotations.In addition, magnet 8b be subjected to magnet 8a magnetic force traction and produce rotation.Here, because centrifuge blade 5 is fixed on the discoid magnet 8b, by the rotation of discoid magnet 8b, centrifugal impeller 5 also certainly leads to rotation like this, thereby at the pump chamber 7 inner current that produce.Therefore, the boiling water of aqueduct 2 inside by on be drawn onto the top of aqueduct 2, the boiling water of storage container 1 inside is inhaled into the inside of aqueduct 2.The above-mentioned boiling water of going up suction is discharged from outlet 3 by the erection part in the aqueduct 2, supplies to drink etc.
For existing pump installation, because motor part 4 is that the next door 6 according to the clamping nonmagnetic material, the mode of discoid magnet 8a, 8b are provided with, the total height that can produce this pump installation like this increases, and problem that can't the implement device miniaturization.
In addition, because cost higher magnet 8a, 8b must be set, number of components also increases, and can produce like this can not provide as a whole, the problem of lower-cost pump installation.
The present invention proposes for addressing the above problem, and the object of the present invention is to provide following a kind of pump installation, because motor part becomes monolithic molding with pump chamber, thereby the total height of pump installation is reduced, volume is reduced, and cost is lower, and security is higher.
The present invention constitutes in the following manner, this mode is: this pump installation comprises pump chamber, this pump chamber is communicated with the suction side inlet of the container of receiving fluids, the rotation of the inside of this pump chamber is provided with the rotor of the motor that impeller and rotating shaft be connected with this impeller freely, in the periphery of this pump chamber, the relative stator that disposes motor to ground with above-mentioned rotor.
In addition, in the present invention,, form film on the surface of above-mentioned rotor with the higher material of corrosion resistance.
In addition, in the present invention, the corrosion resistance alumite has been carried out on the surface of above-mentioned rotor.
Also have, in the present invention, above-mentioned rotor adopts permanent magnet.
In addition, in the present invention, impeller and rotor are equipped with in respectively in the above and below of above-mentioned pump chamber, and the internal perisporium face that covers above-mentioned pump chamber and the demarcation strip of gap between rotor are set between impeller and rotor at least.
The present invention includes the pump chamber that the suction side inlet is connected with the container of receiving fluids, the rotor of the motor that impeller and rotating shaft be connected with this impeller is housed in the rotation freely of the inside of this pump chamber, periphery at this pump chamber, the relative stator that disposes motor to ground with above-mentioned rotor, above-mentioned rotor is arranged to the axially displaceable while, in above-mentioned impeller, is being provided with the retainer walls of blocking above-mentioned suction side inlet.
Fig. 1 is the longitudinal sectional drawing of the pump installation of expression the 1st example structure of the present invention;
Fig. 2 is the perspective view of the major part of the pump installation of expression the 1st example structure of the present invention;
Fig. 3 is the perspective view of the major part of the pump installation of expression the 1st example structure of the present invention;
Fig. 4 is the longitudinal sectional drawing of the motor rotor of the pump installation of expression the 3rd example structure of the present invention;
Fig. 5 is the local longitudinal sectional drawing of the pump installation of expression the 4th example structure of the present invention;
Fig. 6 is the perspective view of the motor main pole plate of the pump installation of expression the 4th example structure of the present invention;
Fig. 7 is the perspective view of the auxilliary plate plate of motor of the pump installation of expression the 4th example structure of the present invention;
Fig. 8 is the local longitudinal sectional drawing of the pump installation of expression the 5th example structure of the present invention;
Fig. 9 is the local longitudinal sectional drawing of the pump installation of expression the 6th example structure of the present invention;
Figure 10 is the local longitudinal sectional drawing of the pump installation of expression the 6th example structure of the present invention;
Figure 11 is the longitudinal sectional drawing of the pump installation of existing example.
The 1st embodiment
Fig. 1 is the longitudinal sectional drawing of the pump installation of the present invention the 1st embodiment, and Fig. 2 represents the perspective view of the major part of said apparatus.The 1st embodiment is applicable to that with this pump installation the occasion of electric hot water bottle is relevant.
In Fig. 1 and Fig. 2, label 1 expression is held storage container, the label 2 that the water (boiling water) in the electric hot water bottle waits and is represented aqueducts, this aqueduct is arranged at the outside of storage container 1, import water etc. from storage container 1, label 3 is an outlet, the upright rearward end that it is arranged in the above-mentioned aqueduct 2, be used to provide drinking-water grade usefulness, this outlet is discharged to water (boiling water) outside of electric hot water bottle.Label 4 expression shaded-pole induction conductivity portions, it is connected with power supply, produces driving force, and label 5 expressions produce the centrifugal impeller of current by rotation.Label 7 expression is connected storage container 1 with aqueduct 2, the pump chamber that the suction side is connected with the bottom of storage container 1, and label 9 expression heaters, its bottom surface that is arranged at storage container 1 is located, so that the liquid of raising storage container 1 inside, such as the temperature of water etc.Label 10 expression forms next door pump chambers 7, that formed by nonmagnetic material.This next door 10 is made of top part 10a, bottom surface sections 10b, side surface part 10c.In addition, the stator of label 11 expression motor part 4, label 12 expression rotating shafts 13 are connected the rotor of motor part 4 of the bottom of centrifugal impeller 5.This rotor 12 is arranged at pump chamber 7 inside according to the mode that makes impeller 5 be positioned at its top.In addition, stator 11 is relative to the ground setting with rotor 12, with the outer peripheral face of the side surface part 10c that is centered around the next door 10 that forms pump chamber 7.Therefore, rotor 12 and stator 11 are provided with in the mode that the side surface part 10c with next door 10 is clamped between them.
Label 14a represents bearing, and it is formed at around the bottom surface sections 10b in the next door 10 of pump chamber 7, admits the bottom of rotating shaft 13, and label 14b represents following bearing, and it is formed at around the top part 10a in the next door 10 of pump chamber 7, and admits the top of rotating shaft 13.The coil of label 15 expression motor, label 16 expressions are arranged at the shielded coil on the part of magnetic pole strength.Here, the coil 15 of motor constitutes stator 11 with shielded coil 16, and rotor 12 and stator 11 constitute motor part 4.Therefore, the inside pump chamber 7 that is provided with rotor 12 forms for whole with motor part 4.
Label 17 expressions are connected storage container 1 with pump chamber 7 pump chamber inlet, label 18 expressions are connected pump chamber 7 with aqueduct 2 pump chamber outlet.Therefore, from storage container 1 to aqueduct 2, realize being communicated with by above-mentioned pump chamber 7.Label 19 expression can be from stator 11, the direction towards the shifting magnetic field of shielded coil 16.
Here, the next door 10 of storage container 1, aqueduct 2, pump chamber, pump chamber inlet 17, pump chamber outlet 18 be and the contacted part of hot water, and it adopts polycarbonate resin etc. to have stable on heating material.These parts both can be formed by identical materials such as for example polycarbonate resins, also can be formed by different hear resistance materials.
Action below by Fig. 1,2 couples of the 1st embodiment is described.Motor part 4 is connected with power supply, drives by the mode of operation of opening switch etc.By motor part 4 is driven, form the shifting magnetic field, thereby determine from the direction 19 of stator 11 towards the shifting magnetic field of the direction of shielded coil 16.That is, when electrical current flows through the coil 15 of motor, form magnetic field,, thereby around shielded coil 16, produce magnetic field, form the shifting magnetic field because induced-current flows through shielded coil 16.The side surface part 10c that is held on the next door 10 between stator 11 and the rotor 12 is crossed in this shifting magnetic field, acts on rotor 12, makes rotor 12 produce rotation with induction mode.
Here, the next door 10 of pump chamber is and the contacted part of hot water, it adopts polycarbonate resin etc. to have stable on heating material, but owing to the inside of working as in the next door 10 of pump chamber, be held on the thickness of side surface part 10c in the next door 10 between stator 11 and the rotor 12 when big, rotor 12 can not rotate expeditiously with induction mode, then also can make the thickness of above-mentioned thickness less than the other parts in next door 10.Next door 10 adopts the occasion of polycarbonate resins, if the thickness of side surface part 10c that is held on the next door 10 between stator 11 and the rotor 12 then can produce rotor 12 by the shifting magnetic field and rotate, guarantee the characteristic of motor part 4 in the scope of 0.5～1mm.
Therefore, when opening switch, electric current flows through the coil 15 of motor, rotor 12 and centrifugal impeller 5 direct directions 19 along the shifting magnetic field, rotating speed rotation according to the rules.Because under the normal operating condition of electric hot water bottle, water (boiling water) is stored in this pump chamber 7 inside, centrifugal impeller 5 necessarily requires to have the revolving force that is used to produce current like this, but, thereby can guarantee to be used to make rotor to produce the characteristic of the motor part 4 of enough revolving forces because the impedance of the coil 15 of motor is higher.
Here, support by bearing 14a, 14b owing to be fixed in the two ends of the rotating shaft 13 on the rotor 12, rotor 12 produces rotation with support pattern like this.In addition, be stored in the lubricant that water (boiling water) in the above-mentioned pump chamber 7 form bearing 14a, 14b, even like this under the situation that does not have the special lubricant of wet goods, rotor 12 still rotates under the state that is supported on bearing 14a, the 14b reposefully.
Therefore, the water in the pump chamber 7 (boiling water) imports aqueducts 2 from pump chamber outlet 18, the water (boiling water) in the aqueduct 2 by on be drawn to the top of aqueduct 2.In addition, the water (boiling water) in the storage container 1 is inhaled into the inside of pump chamber 7 from pump chamber inlet 17.The water (boiling water) that should go up suction is discharged to the outside of this device from outlet 3.In this occasion, any one direction about the direction of rotation of centrifugal impeller 5 is, water (boiling water) is imported into aqueduct 2 from pump chamber outlet 18, and the water (boiling water) in the storage container 1 is inhaled into the inside of pump chamber 7 from pump chamber inlet 17.
In addition, Fig. 3 is the perspective view of the major part of this device.With in Fig. 2, it is relative that pump chamber inlet 17 is formed at the situation of top part 10a of pump chamber 7, and in Fig. 3, pump chamber inlet 17 is formed at in pump chamber exports 18 identical horizontal planes, promptly on the side surface part 10c of pump chamber 7.Consequently, the space of the pump chamber inlet 17 between storage container 1 and the pump chamber 7 can be reduced to be formed at, the size of short transverse can be further reduced.But the direction of rotation of centrifugal impeller 5 is defined as a direction according to stream.
According to top description, shifting magnetic field by shielded coil 16 formation, shaded-pole induction conductivity portion 4 is started, rotor 12 produces rotation with induction mode under situation about being supported on bearing 14a, the 14b, but the present invention is not limited to this situation, also can adopt the synchronous motor or the induction conductivity of motor of other interchange special use, form the shifting magnetic field, thereby make rotor 12 rotations.
In addition, according to top description, pump chamber 7 is to form separately with aqueduct 2, but the present invention is not limited to this situation, also can be the structure that centrifugal impeller 5 and rotor 12 are set in the part of aqueduct 2, forms thereby can become whole.
The 2nd embodiment
Because the rotor 12 of above-mentioned the 1st embodiment is connected with centrifugal impeller 5 by rotating shaft 13, is arranged at the inside of pump chamber 7, like this under the normal operating condition of electric hot water bottle, this rotor 12 is in the state that is soaked in the water (boiling water) etc.In addition, the stator of general motor, rotor majority are formed by the minimum silicon steel sheet of magnetic hysteresis loss (Fe-Si alloy).Because this silicon steel sheet (Fe-Si alloy) gets rusty easily, produce corrosion, when in being soaked in water liquid such as (boiling water), using so certain restriction to be arranged.So, when reality is used, must apply film with corrosion resistance, the material of this film is fit to adopt as polytetrafluoroethylene (PTFE), silicon based thin film in the high molecular poly-imines class of hear resistance, PES class, the fluororesin.Because when the time at the films such as poly-imines class of the surface of rotor 12 formation thickness in 30～50 mu m ranges, can guarantee enough corrosion resistances, even adopt the distance that makes between stator 11 and the rotor 12 to be reduced to the structure of minimum degree like this, still can not exert an influence.
In order to ensure durable corrosion resistance in being soaked in water liquid such as (boiling water), except mode with thin film cladding rotors 12 such as poly-imines classes, rotor 12 itself also can adopt following stainless steel material, to replace silicon steel sheet, this stainless steel material has the such magnetic of SUS430 at least, and has higher corrosion resistance.In this occasion, owing to can under the situation of overlay film not, guarantee corrosion resistance, thereby can reduce the operation of coating film etc.
The 3rd embodiment
Fig. 4 is the rotor of motor of major part that relates to the pump installation of the present invention the 3rd embodiment.
In Fig. 4, because rotor 12 is connected with centrifugal impeller 5 by rotating shaft 13, be arranged at the inside of pump chamber 7, like this under the normal use occasion of electric hot water bottle, be in the state that is soaked in the water (boiling water) etc.Label 20 expression is carried out formed aluminium oxide rete after the alumite to the surface of rotor 12.
Because after rotor 12 is aluminized, structure as thin as a wafer with 25 μ m forms nonisulated body, above-mentioned like this alumite can and electrically not counteract the magnetic of motor, even in that the distance between stator 11 and the rotor 12 is decreased in the structure of minimum degree, still can not exert an influence.Thus, even under the situation about using in being soaked in water liquid such as (boiling water), its corrosion resistance is still very high.Above-mentioned rotor 12 is formed by the thin plate of insulation originally, thereby prevents the electric current of stacked direction.Therefore, because when the outer peripheral face of rotor 12 is aluminized, be easy to make electric current to flow along stacked direction, thereby be not suitable for guaranteeing the characteristic of motor, but,, form insulator by carrying out the alumite of coated corrosion resistant oxide film as anodic oxidation, the electric current that just can prevent stacked direction flows, so said structure is feasible.Coated corrosion resistant material compared among this alumite and the 2nd embodiment, reliability is higher, is fit to long-term the use in addition.In addition, because the corrosion resistant films thinner thickness can obtain the effect identical with the film of corrosion resistance material so at an easy rate.
The 4th embodiment
Fig. 5 is the local longitudinal sectional drawing of major part that relates to the pump installation of the 4th embodiment of the present invention, and Fig. 6 is the perspective view of the main pole plate of expression motor stator, and Fig. 7 is the perspective view of the consequent pole plate of this motor stator of expression.The 4th embodiment is applicable to that with pump installation the occasion of electric hot water bottle is relevant.
In Fig. 5, label 4 expressions are connected with power supply, produce the motor part of the multi-electrode type of driving force, and label 5 expressions produce the centrifugal impeller of current by rotation.Label 7 expression is connected storage container 1 with aqueduct 2, the pump chamber that the suction side is connected with the bottom of storage container 1, label 10 are represented next door formation pump chambers 7, that formed by nonmagnetic material.This next door 10 is formed by top part 10a, bottom surface sections 10b, side surface part 10c.
In addition, the stator of label 11 expression motor part 4, label 12 expression rotating shafts 13 are connected the rotor of motor part 4 of permanent magnet of the bottom of centrifugal impeller 5, are arranged in the pump chamber 7 bottom of centrifugal impeller 5.
Label 14a represents bearing, and it is formed at around the bottom surface sections 10b in the next door 10 of pump chamber 7, admits the bottom of rotating shaft 13, and label 14b represents following bearing, and it is formed at around the top part 10a in the next door 10 of pump chamber 7, admits the top of rotating shaft 13.The coil of label 15 expression motor.
In Fig. 5,6,7, label 21 expressions have circular planar portions 21a and the concavity main pole plate of outer frame 21b, and label 23 is illustrated in the consequent pole plate that its center has circular port, and it is formed by the planar portions 23 ' that has the hole at the center.Here, stator 11 is formed by coil 15, main pole plate 21 and the consequent pole plate 23 of motor, and motor part 4 is formed by stator 11 and rotor 12.Therefore, the inside pump chamber 7 that is provided with rotor 12 forms for whole with motor part 4.
Label 22a, 22b, 22c represent main pole (stator), they are turned up the soil with 120 ° angle intervals on the regulation circle that is arranged at main pole plate 21 respectively, label 24a, 24b, 24c represent consequent pole, they are with the turn up the soil part of the edge that is arranged at the circular port on the consequent pole plate respectively of 120 ° angle intervals, and it is towards outstanding with the perpendicular direction of the planar portions 23 ' of consequent pole plate., be provided with the circle of main pole 22a, 22b, 22c here, the size of the circle of describing with the centre bore of consequent pole plate equates.
In Fig. 5, this consequent pole plate 23 is provided with in the following manner, that is: pump chamber 7 is contained in the part of centre bore, the direction in Fig. 7, even main pole 22a, 22b, 22c towards the below, circular planar portions 23 ' covers the coil 15 of motor from the top.In addition, main pole plate 21 forms in the following manner, that is: pump chamber 7 is contained in the rounded portions that main pole 22a, 22b, 22c are described, direction in Fig. 6, even consequent pole 24a, 24b, 24c are towards the top, planar portions 21a is laid in the bottom of the coil 15 of motor, and outer frame 21b is from the coil 15 of outer side covers motor.Promptly, the top of the coil 15 of motor is by the planar portions 23 ' of consequent pole plate 23, the below is by the planar portions 21a of main pole plate 21, and a side of this coil 15 is by the outer frame 21b of main pole plate 21, and the another side is surrounded by main pole 22a, 22b, 22c and consequent pole 24a, 24b, 24c.Promptly, the coil 15 of motor is arranged between main pole 22a, 22b, 22c and the outer frame 21b on the planar portions 21a of main pole plate 21, consequent pole plate 23 is according to above above-mentioned coil, the mode that covers with the pattern that forms lid forms, in consequent pole plate 23, have the part of centre bore, accommodate the bottom of pump chamber 7, like this main pole 22a, 22b, 22c and consequent pole 24a, 24b, 24c respectively according to the rules angle stagger, and form the shape in the next door 10 that surrounds pump chamber 7.
Admit container 1, delivery line 2, outlet 3, heater 9, pump chamber inlet 17, pump chamber outlet 18 to form, though this point is not shown according to the mode identical with the 1st embodiment.
Action below by Fig. 5,6,7 couples of the 4th embodiment is described.Because motor part 4 is connected with power supply, drive by opening modes of operation such as switch like this.Since as main pole 22a, 22b, 22c and consequent pole 24a, the 24b of motor part 4 stators, 24c respectively according to the rules angle stagger, be arranged on pump chamber 7 around so that it is surrounded, like this when coil be wound in main pole 22a, 22b, 22c and consequent pole 24a, 24b, when 24c is last, produce the magnetic field of the leading phase that equates with the position amount of staggering, form the shifting magnetic field.Therefore, the shifting magnetic field cross pump chamber 7 next door 10 side surface part 10c and act on rotor 12, be subjected to the traction of this shifting magnetic field as the rotor 12 of permanent magnet, by rotating shaft 13, under its upper and lower side is supported on state on bearing 14a, the 14b, rotate.Here, because the rotor 12 of centrifugal impeller 5 and motor part 4 is whole formation, along with the rotation of rotor 12, obviously centrifugal impeller 5 also produces rotation.
When centrifugal impeller 5 rotations, identical with the mode described in the 1st embodiment, produce current, water (boiling water) in the pump chamber 7 is imported aqueduct 2 from pump portion outlet 18, water (boiling water) in the aqueduct 2 is inhaled on the top of aqueduct 2, and the water (boiling water) in the storage container 1 sucks in the pump chamber 7 from pump portion inlet 17.The water (boiling water) that should go up suction is discharged towards the outside of this device, for drinking it from outlet 3.
In the manner described above, in the occasion that is used for so-called multi-electrode type motor, the synchronia more than 2 is because the effect of the signal of interaction between it or outside forms same phase or certain phase difference, then frequency and supply frequency are consistent, or are its integral multiple.Here, owing to be provided with as main pole 22a, 22b, 22c and consequent pole 24a, 24b, the 24c of the stator of the motor part 4 120 ° of ground that stagger respectively, rotating speed is 1/3 of a supply frequency like this, is suitable rotating speed with the liquid sucking-off.In addition, if this motor is small-sized, supply frequency is constant, then since its rotating speed be integral multiple, just form like this frequency of oscillation can be constant, lower-cost motor.
In addition, according to the present invention, rotor 12 adopts following permanent magnet, and promptly residual magnetic and confining force are bigger, even under the situation that the magnetic that has from the outside upsets, and the also not labile ferromagnetism body of residual magnetic field intensity.The main material that adopts is KS steel, MH steel, OP magnet, ferro-aluminum Ni-Co permanent magnetic alloy, Sm-Co magnet etc. in the permanent magnet.The corrosivity of the anti-liquid of this permanent magnet is higher, though with this pump installation as electric hot water bottle, rotor 12 is soaked under the situation in the water (boiling water), because it has good resistance to water, need not to carry out processing such as surface applied like this.In addition; because if rotor 12 is a permanent magnet; magnetic knot closes the bad structure of efficient; the coil 15 of motor twines a large amount of fine rules so that improve impedance; like this when the normal rotation of centrifugal impeller 5, and when locking, electric current does not all change; can abnormal current not arranged stream in the coil 15 of motor yet, need not holding circuit in addition yet.
The 5th embodiment
Fig. 8 is the local longitudinal sectional drawing of major part of the pump installation of the 5th embodiment of the present invention.The 5th embodiment is relevant with the occasion that pump installation is suitable for electric hot water bottle.
In Fig. 8, label 4 expression shaded-pole induction conductivity portions, it is connected with power supply, produces driving force, and label 5 expressions produce the centrifugal impeller of current by rotation.Label 7 expression pump chambers, it is connected storage container 1 with aqueduct 2, be communicated with the suction side in the bottom of storage container 1, and label 10 is represented formation pump chambers 7, the next door that is formed by nonmagnetic material.This next door 10 is formed by top part 10a, bottom surface sections 10b, the side surface part 10c in next door.In addition, the stator of label 11 expression motor part 4, label 12 expression rotating shafts 13 are connected the rotor of motor part 4 of the bottom of centrifugal impeller 5.This rotor 12 is arranged in the pump chamber 7, the bottom of centrifugal impeller 5.Label 14a is a bearing, and it is formed at the part of the bottom surface sections 10b in the next door 10 that surrounds pump chamber 7, admits the bottom of rotating shaft 13, and label 14b represents to be formed at the bearing of part of the top part 10a in the next door 10 that surrounds pump chamber 7, the top of admitting rotating shaft 13.The coil of label 15 expression motor, label 16 expressions are arranged at the shielded coil of the part of magnetic pole strength.
Label 25 expression expressions are arranged at the demarcation strip between centrifugal impeller 5 and the rotor 12.By rotating shaft 13, successively centrifugal impeller 5, demarcation strip 23, rotor 12 are fixed.The size of this demarcation strip 25 for can cover from the top the side surface part 10c in next door 10 by the part of stator 11 with rotor 12 clampings.
Below by Fig. 8 the action of the 5th embodiment is described.Water in the pump chamber 7 (boiling water) imports aqueduct 2 from pump chamber outlet 18, and the water (boiling water) in the aqueduct 2 is inhaled on the top of aqueduct 2, and the water (boiling water) in the storage container 1 sucks pump chamber 7 inside from pump chamber inlet 17.Should go up the water of inhaling (boiling water) discharges towards the outside of this device from outlet 3., be storage container 1 inside here, sneak into the organic matter solidifying body in the water, or the occasion of the foreign matter of the solidifying body of calcium and clay etc., this foreign matter also with water (boiling water) similarly, suck pump chambers 7 inside from pump portion inlet 17.When this foreign matter was held between the side surface part 10c in rotor 12 and next door 10, the rotation of rotor 12 and centrifugal impeller 5 just locked.But, because between centrifugal impeller 5 and rotor 12, demarcation strip 25 is arranged to cover the bottom of the side surface part in next door 10, foreign matter does not just directly fall like this, thus it can not be held between the side surface part 10c in rotor 12 and next door 10.Therefore, the rotation that can prevent rotor 12 locks.Particularly, when rotor 12 non-rotating, the rotation of centrifugal impeller 5 can not produce current, and the occasion that foreign matter is vertically fallen is effective like this.
According to top description, demarcation strip 25 is arranged between centrifugal impeller 5 and the rotor 12, but the present invention is not limited to this situation, also can be by the filter mechanisms such as filter that between centrifugal impeller 5 and rotor 12, the foreign matters in the liquid passed through, make foreign matter not from pump chamber 7 inside, be held in the narrow space between the side surface part 10c in rotor 12 and the next door 10.
The 6th embodiment
Fig. 9,10 the local longitudinal sectional drawings of major part for the pump installation that relates to the present invention the 6th embodiment.The 6th embodiment is applicable to that with pump installation the occasion of electric hot water bottle is relevant.
In Fig. 9,10, label 4 expression shaded-pole induction conductivity portions, it is connected with power supply, produces driving force, and label 5 expressions produce the centrifugal impeller of current by rotation.Label 7 expression pump chambers, it is connected storage container 1 with aqueduct 2, be communicated with the suction side that sucks water (boiling water) in the bottom of storage container 1, and label 10 is represented formation pump chambers 7, the next door that is formed by nonmagnetic material.This next door 10 is made of top part 10a, bottom surface sections 10b, the side surface part 10c in next door.In addition, the stator of label 11 expression motor part 4, label 12 expression rotating shafts 13 are connected the rotor of motor part 4 of the bottom of centrifugal impeller 5.This rotor 12 is arranged in the pump chamber 7, the bottom of centrifugal impeller 5.Label 14a represents bearing, and it is formed at the part of the bottom surface sections 10b that surrounds pump chamber 7, admits the bottom of rotating shaft 13, and label 14b represents to be formed at the bearing of part of the top part 10a in the next door 10 that surrounds pump chamber 7, the top of admitting rotating shaft 13.The coil of label 15 expression motor, label 16 expressions are as the shielded coil of the short-circuited coil of the part that is arranged at magnetic pole strength.
In addition, storage container 1, aqueduct 2, outlet 3, heater 9, pump chamber inlet 17, pump chamber outlet 18 form according to the mode identical with the 1st embodiment.
Action below by Fig. 9,10 couples of the 6th embodiment is described.Because under the state that motor part 4 does not drive, promptly when rotor 12 does not rotate, be arranged at compression spring 26 around the bearing 14a of bottom of rotor 12 and produce power by its elastic force towards the top, be connected with the rotating shaft 13 of rotor 12 owing to be arranged at the retainer walls 27 at the top of centrifugal impeller 5, thereby be pressed towards the top.Therefore, under the effect of the throw-on pressure of retainer walls 27, seal 28 is flattened, block from storage container 1 to pump chamber 7 inlet, thereby anti-sealing (boiling water) flows into towards pump chamber 7 from storage container 1.In addition, when rotor 12 rotations, owing to produce magnetic field, rotor 12 is drawn to magnetic field center the elastic force of opposing compression spring, traction downwards under its magneticaction, between retainer walls 27 and seal 28, form the space, as shown in Figure 9,7 inlet is opened from storage container 1 to pump chamber, and the water (boiling water) of storage container 1 inside is drawn into pump chamber 7 inside.
Therefore, even under the situation that electric hot water bottle tilts, the state of not opening at the switch of motor part 4 is not promptly when rotor 12 rotates, under the effect of the elastic force of compression spring 26, will retainer walls 27 press to seal 28, the water (boiling water) of storage container 1 inside can not flow out pump chamber 7, thus, and when storage container tilts, boiling water flows out from outlet, thus situation about can not scald.
In addition, because the effect of above-mentioned retainer walls 27, the water (boiling water) that residues in the aqueduct 2 produces negative pressure when tilting, and the residual water of aqueduct 2 parts does not flow out yet.
According to top description, under the effect of the elastic force of compressing spring 26, to push away on the rotor 12, under the effect of the throw-on pressure of retainer walls 27, seal 28 is flattened, block from storage container 1 to pump chamber 7 inlet, thereby prevent that liquid from flowing into towards pump chamber 7 from storage container, but the present invention is not limited to this situation, the elastic force that the present invention also can adopt other elastomer such as rubber to produce.
According to above invention as can be known, pump installation of the present invention comprises the pump chamber that the suction side inlet is communicated with the container of storing liquid, the rotor of the motor that impeller and rotating shaft be connected with impeller is equipped with in rotation in freely in this pump chamber, periphery at above-mentioned pump chamber, relative to above-mentioned rotor ground, be provided with the stator of motor.Consequently, can provide volume less, the pump installation that reliability is higher.That is, the total height of this pump installation is less, and in the such suitable example of electric hot water bottle, because the total height of pump installation itself is less, center of gravity is lower, the situation that is difficult for like this meeting accident and knocks over, thus also can improve security.
In addition, because power supply can adopt source power supply, so needn't adopt rectifier, filter condenser, low-voltage diode, the such high price parts of dropper resistance * * (opposing) of the sort of occasion that resembles direct current electronegative potential of the prior art, thereby cost that can be very low forms.
In addition, in pump installation of the present invention, the surface of above-mentioned rotor adopts the higher material of corrosion resistance to form film.Consequently, even be soaked at rotor under the situation in the liquid such as water, owing to have higher corrosion resistance, thereby can not corrode, situation such as can prevent to get rusty, in the such suitable example of electric hot water bottle, even still potable device can be provided under the situation that this water etc. is used to drink.
Have again, in pump installation of the present invention, the corrosion resistance alumite has been carried out on the surface of above-mentioned rotor.Consequently, even owing to be soaked under the situation of liquid such as water at rotor, corrosion resistance is still higher, can not produce corrosion like this, situation such as can prevent to get rusty is in the such suitable example of electric hot water bottle, even still potable device can be provided under the situation that this water etc. is used to drink.In addition, can provide with surperficial film forming situation and compare, reliability is higher, the device that can use for a long time.
In addition, in pump installation of the present invention, adopt permanent magnet as above-mentioned rotor.Consequently, the total height of pump installation can reduce, and in the such suitable example of electric hot water bottle, because the total height of pump installation itself is lower, position of centre of gravity is lower like this, difficultly unexpectedly knocks over, thereby also can improve security.In addition, because rotor is formed by permanent magnet, corrosion resistance is higher like this, needn't carry out film forming processing to the surface.In addition, if rotor is a permanent magnet,,, can produce abnormal current in the coil yet, thereby need not holding circuit yet even like this under the situation that impeller locks because employing itself is the bad structure of magnetic joint efficiency.
Also have, because power supply can adopt source power supply, thus needn't adopt the such high price parts of rectifier, filter condenser, low-voltage diode, dropping resistor of the sort of occasion that resembles direct current electronegative potential of the prior art, thus cost that can be very low forms.
Have, in pump installation of the present invention, the inside of above-mentioned pump chamber is provided with impeller up again, below be provided with rotor, between impeller and rotor, be provided with the internal perisporium face that covers above-mentioned pump chamber and the demarcation strip of gap between rotor at least.Consequently, can not produce foreign matter and sneak into narrow space between rotor and the next door,, therefore can provide reliability higher pump installation the situation of spin locking.
Pump installation of the present invention comprises the pump chamber that the suction side inlet is communicated with the container of storing liquid, the rotor of the motor that impeller and rotating shaft be connected with impeller is equipped with in rotation in freely in this pump chamber, periphery at this pump chamber, the relative stator that is provided with motor to ground with above-mentioned rotor, above-mentioned rotor is arranged to the axially displaceable while, in above-mentioned impeller, is provided with the retainer walls of blocking above-mentioned suction side inlet.Consequently, because when rotor was non-rotating, promptly when the non-driving of motor, the liquid that can not in the storage container flowed out, even be used as under the situation of electric hot water bottle at this pump installation like this, hot water still can not take place flow out, cause the situation of scald.In addition, at this moment, owing to be locking between storage container and the pump chamber,, still can not produce negative pressure, aqueduct residual water is partly also flowed out even like this under the situation that this pump installation tilts.
Claims (6)
1. pump installation, comprise the pump chamber that the suction side inlet is communicated with the container of storing liquid, it is characterized in that: the rotation of the inside of this pump chamber is provided with the rotor of the motor that impeller and rotating shaft be connected with this impeller freely, at the relative stator that motor is set to ground with above-mentioned rotor in the periphery of this pump chamber.
2. pump installation according to claim 1 is characterized in that: by the higher material of corrosion resistance, form film on the surface of above-mentioned rotor.
3. pump installation according to claim 1 is characterized in that: the corrosion resistance alumite has been carried out on the surface of above-mentioned rotor.
4. pump installation according to claim 1 is characterized in that: above-mentioned rotor adopts permanent magnet.
5. according to any one described pump installation in the claim 1～4, it is characterized in that: the inner and upper of above-mentioned pump chamber is provided with impeller, thereunder be provided with rotor, between impeller and rotor, be provided with the internal perisporium face of the above-mentioned pump chamber of covering and the demarcation strip of gap between rotor at least.
6. pump installation according to claim 1 is characterized in that above-mentioned rotor is being arranged to the axially displaceable while, is provided with the retainer walls of blocking above-mentioned suction side inlet in above-mentioned impeller.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP318922/98 | 1998-11-10 | ||
| JP10318922A JP2000145683A (en) | 1998-11-10 | 1998-11-10 | Pump device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1252974A true CN1252974A (en) | 2000-05-17 |
Family
ID=18104487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99104408 Pending CN1252974A (en) | 1998-11-10 | 1999-03-25 | Pump setting |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2000145683A (en) |
| CN (1) | CN1252974A (en) |
| TW (1) | TW419365B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102885576A (en) * | 2012-10-13 | 2013-01-23 | 余俊忠 | Instant heating type electric water boiler |
| CN106415017A (en) * | 2013-11-29 | 2017-02-15 | Fte汽车股份有限公司 | Electric motor driven fluid pump, in particular for the forced lubrication of a manual transmission of a motor vehicle |
| CN106415016A (en) * | 2013-11-29 | 2017-02-15 | Fte汽车股份有限公司 | Electric motor driven fluid pump, in particular for the forced lubrication of a manual transmission of a motor vehicle |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008121521A (en) * | 2006-11-10 | 2008-05-29 | Ichimaru Giken:Kk | Fluid feeding device |
| JP2008125272A (en) * | 2006-11-14 | 2008-05-29 | Ichimaru Giken:Kk | Power generator |
-
1998
- 1998-11-10 JP JP10318922A patent/JP2000145683A/en active Pending
- 1998-12-31 TW TW87122002A patent/TW419365B/en active
-
1999
- 1999-03-25 CN CN 99104408 patent/CN1252974A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102885576A (en) * | 2012-10-13 | 2013-01-23 | 余俊忠 | Instant heating type electric water boiler |
| CN102885576B (en) * | 2012-10-13 | 2015-02-25 | 广东新功电器有限公司 | Instant heating type electric water boiler |
| CN106415017A (en) * | 2013-11-29 | 2017-02-15 | Fte汽车股份有限公司 | Electric motor driven fluid pump, in particular for the forced lubrication of a manual transmission of a motor vehicle |
| CN106415016A (en) * | 2013-11-29 | 2017-02-15 | Fte汽车股份有限公司 | Electric motor driven fluid pump, in particular for the forced lubrication of a manual transmission of a motor vehicle |
| US10393120B2 (en) | 2013-11-29 | 2019-08-27 | Fte Automotive Gmbh | Electric motor driven liquid pump, in particular for the forced lubrication of a manual transmission for motor vehicles |
| CN106415016B (en) * | 2013-11-29 | 2019-08-30 | Fte汽车股份有限公司 | The liquid pump of motor drive |
| CN106415017B (en) * | 2013-11-29 | 2019-09-20 | Fte汽车股份有限公司 | The liquid pump of motor drive |
| US10451073B2 (en) | 2013-11-29 | 2019-10-22 | Fte Automotive Gmbh | Electric motor driven liquid pump, in particular for the forced lubrication of a manual transmission for motor vehicles |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000145683A (en) | 2000-05-26 |
| TW419365B (en) | 2001-01-21 |
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