CN105697384A - Water discharge pump - Google Patents
Water discharge pump Download PDFInfo
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- CN105697384A CN105697384A CN201510800309.3A CN201510800309A CN105697384A CN 105697384 A CN105697384 A CN 105697384A CN 201510800309 A CN201510800309 A CN 201510800309A CN 105697384 A CN105697384 A CN 105697384A
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- discharge port
- port entrance
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- pump chamber
- rotating vane
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Abstract
The invention provides a silent water discharge pump which can inhibit the bubble from blending into the discharged water. The water discharge pump consists of an electromotor and a pump main body; the pump main body has an upper end opening, a suction port which is arranged on the lower end and a housing of a discharge port which is arranged on the side, a rotation blade which is connected to the motor, a housing having a through hole in the center and installed on the upper end of the housing, and a pump chamber defined by the housing and the cover; the discharge port has an inlet of a discharge port which opens to the pump chamber; the water discharge pump is characterized in that the inner diameter of the upper side of the inlet of the discharge port of the pump chamber is smaller than that of the inlet of the discharge port of the pump chamber, or is smaller than the diameter of the inlet of the discharge port of the pump chamber and than the diameter of the lower side of inlet of the discharge port.
Description
Technical field
The present invention relates to the draining pump being sucked from suction inlet by water by rotating vane and discharging from outlet, especially relate to be adapted for carrying out the draining pump of quietness when operating。
Background technology
In the past, in the air conditioner of the form of the ceiling in embedment indoor, it was equipped with the drain pan of the drain water of the surface condensation accepting the indoor heat converter at air conditioner。In order to by the drain water in this drain pan to outdoor drainage, use draining pump (drainage pump) (with reference to patent documentation 1)。
Fig. 8 is an example of the existing draining pump described in patent documentation 1。
Existing draining pump 1 has motor 10 and is installed on the pump main body 30 of motor 10 via bracket 20。Pump main body 30 is plastics system, possesses: the housing 40 of upper opening；The cover 32 chimeric with the upper opening of housing 40；And it is linked to the rotating vane 50 of motor 10。
Housing 40 has: have the suction tube 42 of the tubulose of suction inlet 43 in bottom；It is formed at by the pump chamber 44 of this housing and the inner space of cover 32 delimitation (division)；And there is the discharge pipe 45 of outlet 46 in side。Symbol 46a is the entrance (discharge port entrance) of the outlet 46 to pump chamber 44 opening。
Cover 32 and bracket 20 are integrally formed, and link with housing 40 when having sandwiched seal member 34 between housing 40。
In pump chamber 44, contain the rotating vane 50 rotated by motor 10。Rotating vane 50 has: axle portion 52；Multiple (such as 4) the flat big footpath blades 60 extended from the peripheral part in axle portion 52 along radiation direction and configuration intermediate blade 60a between which；Following tapering along each big footpath blade 60 and intermediate blade 60a arranges and has the endless member 62 of peristome 63 in central authorities；And multiple (such as identical with big footpath blade 60 quantity) flat path blades 54 of the lower end edge portion of each big footpath blade 60 it are linked to by the inner side of peristome 63。Rotating vane 50 is configured in pump chamber 44 in the way of its path blade 54 is inserted in suction tube 42。
Axle portion 52 is through prominent to motor 10 side at the through hole 36 being centrally formed of cover 32, is inserted and fixed the driving axle 12 of motor 10 in the hole 53 arranged along the central shaft in axle portion 52。Upper surface in axle portion 52 is provided with the plectane 14 that dewaters, and this dewaters plectane 14 when spraying drain water from the through hole 36 of cover 32, it is prevented that this drain water disperses to motor 10 side。
Patent documentation 1: Japanese Unexamined Patent Publication 2013-64396 publication
The problem that invention to solve
Fig. 9 is the longitudinal section of the summary of the inside of the pump main body 30 illustrating the existing draining pump 1 shown in Fig. 8。
As shown in Figure 9, the water sucked from suction inlet 43 is applied in centrifugal force (the arrow C of Fig. 9) by rotating vane 50, so at this rotating vane 50 radially, air layer is formed in inner side, form water layer in outside, form the alveolar layer of the mixing of air and the water being referred to as liquid-gas interface in its boundary。
There are the following problems: liquid-gas interface produce bubble when crossing the upper end of rotating vane 50, pressed to peripheral direction by centrifugal force and flowed。This bubble is mixed into from the draining that outlet 46 is discharged, and when flowing out, produces noise。
Summary of the invention
The present invention is the invention completed in view of the above problems, its object is to provide and bubble can be suppressed to be mixed into from the draining that outlet flows out, it is achieved the draining pump of quietness during operating。
Means for solving the above
In order to solve above-mentioned problem, the draining pump of the present invention, motor and pump main body formed, described pump main body possesses: upper end opening and be provided with suction inlet in bottom and be provided with the housing of outlet at sidepiece；It is linked to the rotating vane of described motor；And at central part, there is through hole and be installed on the cover of upper end of described housing；Pump chamber delimited by described housing and described cover, and described outlet possesses the discharge port entrance to described pump chamber opening, described draining pump is characterised by, the internal diameter of the top side of discharge port entrance described in the ratio of described pump chamber is less than the internal diameter of the part of the described discharge port entrance of described pump chamber, or the internal diameter less than the part of described discharge port entrance of described pump chamber and the downside of described discharge port entrance。
In this draining pump, can also be, described cover has the side of sidewall portion of the ring-type chimeric with the described opening of described housing, the lower end of the side of sidewall portion of described ring-type extends to the height identical with the upper end of described discharge port entrance, and the medial surface of the side of sidewall portion of described ring-type is formed as the shape prominent to the inner side of described cover from described discharge port entrance。
In addition it is also possible to be, described housing is also equipped with the protuberance of ring-type, and the protuberance of this ring-type extends to the height identical with the lower end of described discharge port entrance, and medial surface is prominent to the inner side of described pump chamber from described discharge port entrance。
Invention effect
Draining pump according to the present invention, internal diameter for pump chamber, the part of side more top than discharge port entrance is less than discharge port entrance and the part on the downside of it, so the centrifugal action produced for the rotation by rotating vane is in the power of the inner wall part of pump chamber, in existing draining pump, discharge port entrance is uniform up and down, and in the draining pump of the present invention, the part of side more top than discharge port entrance is less than discharge port entrance (and on the downside of it)。
Additionally, cross the upper end of rotating vane and reach the water of the upside peripheral part (part suitable with the top of the discharge port entrance of pump chamber) of pump chamber comprises the bubble of a large amount of reason becoming noise when flowing out, but as described above, at the centrifugal force than the top side effect of the discharge port entrance of pump chamber less than discharge port entrance (and on the downside of it), become from the relative part (part of the discharge port entrance of pump chamber of the discharge port entrance strong with the effect of centrifugal force so flowing into the major part of water of discharge port entrance from pump chamber, or the part of this discharge port entrance and the part on the downside of it) water, the water comprising a large amount of bubble reaching the upside peripheral part of pump chamber is flowed into the amount minimizing of discharge port entrance。It is as a result, it is possible to prevent from, at the water flowing into discharge port entrance from pump chamber, being namely prevented from being mixed into bubble in the draining flowed out from outlet, it is achieved quietness during operating。
Accompanying drawing explanation
Fig. 1 (a) indicates that the figure of the summary of the pump main body of the draining pump of the 1st embodiment of the present invention, is the longitudinal section obtained to be cut off by the face of the centrage of outlet。
Fig. 1 (b) indicates that the figure of the summary of the pump main body of the draining pump of the 1st embodiment of the present invention, is the axonometric chart removing rotating vane from Fig. 1 (a) and obtaining。
Fig. 2 indicates that the axonometric chart of the summary of an example of the rotating vane of the draining pump of the 1st embodiment being applied to the present invention。
Fig. 3 indicates that the axonometric chart of the summary of the variation (the 1st variation) of the rotating vane that the draining pump of the 1st embodiment of the present invention uses。
Fig. 4 indicates that the axonometric chart of the summary of other variation (the 2nd variation) of the rotating vane that the draining pump of the 1st embodiment of the present invention uses。
Fig. 5 indicates that the axonometric chart of the summary of other variation further (the 3rd variation) of the rotating vane that the draining pump of the 1st embodiment of the present invention uses。
Fig. 6 (a) indicates that the figure of the summary of the pump main body of the draining pump of the 2nd embodiment of the present invention, is the longitudinal section obtained to be cut off by the face of the centrage of outlet。
Fig. 6 (b) indicates that the figure of the summary of the pump main body of the draining pump of the 2nd embodiment of the present invention, is the axonometric chart removing rotating vane from Fig. 6 (a) and obtaining。
The coordinate diagram of the result that noise when Fig. 7 indicates that the operating to the draining pump shown in the 1st embodiment of the present invention and existing draining pump compares and obtains。
Fig. 8 is an example of the existing draining pump that air conditioner uses。
Fig. 9 indicates that the longitudinal section of the summary of the inside of the pump main body of the existing draining pump shown in Fig. 8。
Symbol description
130,530 pump main body
132,532 cover
140,540 housing
142,542 suction tube
146,546 outlet
146a, 546a discharge port entrance
150,250,350,450,550 rotating vane
152,252,352,452,552 axle portion
154 path blades
160,260,360,460 big footpath blade
162,262,362,462 endless member
168,268,368,468 auxiliary blade
Detailed description of the invention
<the 1st embodiment>
Fig. 1 indicates that the figure of the summary of the pump main body of the draining pump of the 1st embodiment of the present invention。Herein, Fig. 1 (a) is the longitudinal section obtained to cut off pump main body 130 by the face of the centrage of outlet 146 described later, and Fig. 1 (b) is to be cut off the pump main body 130 eliminating rotating vane 150 axonometric chart observed from obliquely downward by the face of the centrage of outlet 146。
As it is shown in figure 1, the pump main body 130 of the draining pump of the 1st embodiment possesses: the housing 140 of upper opening；The cover 132 chimeric with the upper opening of housing 140；And it is configured at the rotating vane 150 in the pump chamber 144 by housing 140 and cover 132 delimitation。Herein, the aforesaid each part constituting pump main body 130 such as can be set to plastics system。
Housing 140 has: at the pump chamber 144 being internally formed；There is the suction tube 142 of the tubulose of the suction inlet 143 connected with pump chamber 144 from below；And be arranged at the side of pump chamber 144 and have the discharge pipe 145 of pump chamber 144 with the tubulose of the outlet 146 of ft connection。Symbol 146a is the outlet 146 discharge port entrance to pump chamber 144 opening。
Cover 132 has the side of sidewall portion 133 in the chimeric ring-type of the upper opening of housing 140, and the state to sandwich seal member 134 links with housing 140。
The lower end 133a of the side of sidewall portion 133 of above-mentioned ring-type extends to the upper end sustained height with discharge port entrance 146a, and the medial surface 133b of the side of sidewall portion 133 of ring-type is formed as covering the shape that the medial center direction of 132 highlights from the upper direction of discharge port entrance 146a。
That is, in FIG, if the distance from the rotation axis O to discharge port entrance 146a of rotating vane 150 is set to R1, the distance from the rotation axis O of rotating vane 150 to the medial surface 133b of the side of sidewall portion 133 of ring-type is set to R2, then the side of sidewall portion 133 of ring-type becomes R1> R2Shape。Additionally, the overhang (R of the medial surface of the side of sidewall portion 133 of ring-type1With R2Residual quantity) such as can be configured to about 2mm。
Fig. 2 indicates that the axonometric chart of the summary of an example of the rotating vane of the draining pump being applied to the 1st embodiment。
As shown in Fig. 1 (a), in the pump chamber 144 of housing 140, contain the rotating vane 150 rotated by motor (not shown)。
Rotating vane 150 has: axle portion 152；4 the flat big footpath blades 160 extended from the peripheral part in axle portion 152 to radiation direction；And link with the lower end edge portion of each big footpath blade 160 and insert 4 flat path blades 154 of suction tube 142。
The through through hole 136 being centrally formed at cover 132 in axle portion 152 also highlights, and is inserted and fixed the driving axle of motor in the hole 153 arranged along the central shaft in axle portion 152。
The lower end edge portion of big footpath blade 160 is formed as taper, and its lower end edge portion is linked by the discoid endless member 162 with peristome 163。This endless member 162 side view in rounding frustum, the upper surface of its peripheral part is set as the ring-type par 164 of the flat shape highlighted laterally than the peripheral end of big footpath blade 160 and auxiliary blade 168。
It addition, be provided with 4 auxiliary blades 168 between adjacent big footpath blade 160, it is possible to guarantee pump lift by this auxiliary blade 168 and big footpath blade 160。
This rotating vane 150 such as links with the motor 10 shown in Fig. 8, thus constitutes draining pump。
Then, with reference to Fig. 1 (a) while the effect of the 1st embodiment of the present invention is described。
First, when making not shown motor rotate, rotating vane 150 rotates, and water is drawn in pump chamber 144 from suction inlet 143, and the water sucked is discharged from outlet 146。
The water sucked from suction inlet 143 is applied in centrifugal force by rotating vane 150, so at this rotating vane 150 radially, forms air layer in inner side, forms water layer in outside, is formed in its boundary and is referred to as the air of liquid-gas interface and the mixing alveolar layer of water。
Result from the bubble of liquid-gas interface when crossing the upper end of rotating vane 150, flowed to peripheral direction pressing by centrifugal force。
Herein, in this 1st embodiment, the side of sidewall portion 133 of ring-type it is formed with at cover 132, so for the internal diameter of pump chamber 144, the part of (part of symbol 133b) more top than discharge port entrance 146a side is less than on the downside of discharge port entrance 146a and its。Thus, the centrifugal action produced for the rotation by rotating vane 150 is in the power of the inner wall part of pump chamber 144, existing draining pump is uniform at discharge port entrance up and down, but in the draining pump of the present invention, act on the power (the symbol P1 of Fig. 1 (a)) of side more top than discharge port entrance 146a less than acting on discharge port entrance and the power (the symbol P2 of this figure) on the downside of it。
Cross the upper end of rotating vane 150 as described above and reach the bubble that the water of the upside peripheral part (part suitable with the top of the discharge port entrance 146a of pump chamber 144) of pump chamber 144 comprises a large amount of reason becoming noise when flowing out, in this 1st embodiment, as described above at the centrifugal force than the discharge port entrance 146a of pump chamber 144 top side effect less than discharge port entrance 146a and the part on the downside of it, so the major part being flowed into the water of discharge port entrance 146a from pump chamber 144 becomes the water of the part (part of the discharge port entrance 146a of pump chamber 144) relative for discharge port entrance 146a from strong with the effect of centrifugal force and the part on the downside of it, the water comprising a large amount of bubble reaching the upside peripheral part (by the part shown in the arrow of symbol P1) of pump chamber 144 is flowed into the amount minimizing of discharge port entrance 146a。It, as a result, it is possible to suppress to be flowed into the water of discharge port entrance 146a from pump chamber 144, namely can suppress to be mixed into bubble in the draining flowed out from outlet 146, it is achieved quietness during operating。
Fig. 3 indicates that the axonometric chart of the summary of the variation (the 1st variation) of the rotating vane that the draining pump of the 1st embodiment of the present invention uses。This rotating vane 250 is configured in such pump chamber 144 by housing 140 and cover 132 delimitation shown in Fig. 1 (a), (b)。
As it is shown on figure 3, in rotating vane 250, the upper end edge portion in the edge of big footpath blade 260 is formed with end difference 272, and side edge part is formed with end difference 282 outside。
In this rotating vane 250, the lower end edge portion of big footpath blade 260 is also formed in taper, and its lower end edge portion is linked by the discoid endless member 262 with peristome 263。
It addition, be provided with auxiliary blade 268 between adjacent big footpath blade 260, in auxiliary blade 268, also edge is formed with end difference 274 at its upper end, and side edge part is formed with end difference 284 outside。
Endless member 262 side view in rounding frustum, the upper surface of its peripheral part is set as the ring-type par 264 of the flat shape highlighted laterally than the peripheral end of the end difference 282 of big footpath blade 260 and the end difference 284 of auxiliary blade 268。
End difference 272 and 274 is respectively throughout the formation endlong of big footpath blade 260 and the upper end edge portion of auxiliary blade 268。Such end difference 272 and 274 have the water sucked from suction inlet is splash upward and upwards foreign side guide function。
It addition, end difference 282 and 284 is respectively throughout the formation endlong of big footpath blade 260 and the outboard end edge of auxiliary blade 268。Such end difference 282 and 284 has the function guided outward by the water sucked from suction inlet to the footpath of rotating vane 250。
By such structure, in employing the draining pump of rotating vane 250 of the 1st variation, by the end difference of big footpath blade 260 272 and 282 and the synergism of end difference 274 and 284 of auxiliary blade 268, the position of the liquid-gas interface of the water discharged becomes the position of the rotating shaft farther away from rotating vane 250, so the inlet capacity of rotating vane can be improved, vibration and noise can be reduced again。
It addition, by ring-type tabular surface 264, the current risen along the bottom surface of endless member 262 become will not with the outboard end edge striding across big footpath blade 260 and auxiliary blade 268 and the current that flow are interferenceed, this effect of generation suppressing bubble further can be played。
Fig. 4 indicates that the axonometric chart of the summary of other variation (the 2nd variation) of the rotating vane that the draining pump of the 1st embodiment of the present invention uses。This rotating vane 350 is arranged in such pump chamber 144 by housing 140 and cover 132 delimitation shown in Fig. 1 (a), (b)。
As shown in Figure 4, in rotating vane 350, the upper end edge portion in the edge of big footpath blade 360 is formed with end difference 372。
In this rotating vane 350, the lower end edge portion of big footpath blade 360 is formed as taper, and its lower end edge portion is linked by the discoid endless member 362 with peristome 363。
It addition, be provided with auxiliary blade 368 between adjacent big footpath blade 360, in auxiliary blade 368, also edge is formed with end difference 374 at its upper end。
In this rotating vane 350, the edge, outside of big footpath blade 360 and auxiliary blade 368 is linked by cylindrical wall parts 364。In the diagram, what the height of cylindrical wall parts 364 was configured to big footpath blade 360 and auxiliary blade 368 is highly consistent but it also may be set to more high or low than the height of big footpath blade 360 and auxiliary blade 368。It addition, the internal face at cylindrical wall parts 364 is formed with end difference 366。
By such structure, in this draining pump, except the guiding function of the end difference 372 of big footpath blade 360 and the current of the end difference 374 of auxiliary blade 368, also addition of the function making current smoothly flow outward on cylindrical wall parts 364, thus can improve the inlet capacity of rotating vane, vibration and noise can be reduced again。
Additionally, by cylindrical wall parts 364, the current risen along the outside of these cylindrical wall parts 364 from the bottom surface of endless member 362 will not with the rotation because of big footpath blade 360 and auxiliary blade 368 and the current that flows along the inner side of cylindrical wall parts 364 are interferenceed, the effect of the generation of suppression bubble further can be played。
Fig. 5 indicates that other the axonometric chart of summary of variation (the 3rd variation) further of the rotating vane that the draining pump of the 1st embodiment of the present invention uses。This rotating vane 450 is configured in such pump chamber 144 by housing 140 and cover 132 delimitation shown in Fig. 1 (a), (b)。
As it is shown in figure 5, in rotating vane 450, the upper end edge portion in the edge of big footpath blade 460 is formed with end difference 472, and side edge part is formed with end difference 482 outside。
In this rotating vane 450, the lower end edge portion of big footpath blade 460 is again formed as taper, and its lower end edge portion is linked by the discoid endless member 462 with peristome 463。
It addition, be provided with auxiliary blade 468 between adjacent big footpath blade 460, in auxiliary blade 468, also edge is formed with end difference 474 at its upper end, and side edge part is formed with end difference 484 outside。
Endless member 462 side view in rounding frustum, the upper surface of its peripheral part is set as the ring-type par 464 of the flat shape highlighted laterally than the peripheral end of the end difference 482 of big footpath blade 460 and the end difference 484 of auxiliary blade 468。
In this rotating vane 450, at the end difference 472 of the upper end edge portion being positioned at big footpath blade 460, for instance be formed with 2 inclined plane 472a and 472b。Angle of incidence that these inclined plane 472a and 472b are formed as having the current of the contacts side surfaces of the big footpath blade 460 rotated with the rotating shaft around rotating vane 450 relative to the side of above-mentioned big footpath blade 460 and the consistent inclination angle of the angle of incidence of current contacted with the inclined plane 472a and 472b of the position offset to direction of rotation with the ladder amount of end difference 472。
It addition, end difference 474 is throughout being formed respectively endlong of upper end edge portion of auxiliary blade 468。
By possessing such shape, big footpath blade 460 current splash can towards the tangential direction of the circle centered by the rotating shaft by rotating vane 450, and the current of the front and back of end difference 472 become uniform。Thus, it is possible to alleviate turbulent generation to suppress the bubble mixed flow to current。
It addition, end difference 482 and 484 being formed respectively endlong throughout the outboard end edge of big footpath blade 460 and auxiliary blade 468。Such end difference 482 and 484 has the function guided outward by the water sucked from suction inlet to the footpath of rotating vane 450。
By such structure, in this draining pump, by the end difference of big footpath blade 460 472 and 482 and the synergism of end difference 474 and 484 of auxiliary blade 468, the position of the liquid-gas interface of the water of discharge becomes the position of the rotating shaft farther away from rotating vane 450。It addition, by the inclined plane 472a formed in the upper end of big footpath blade 460 and 472b, it is suppressed that in the current formed by rotating vane 450, produce turbulent flow。Thus, the inlet capacity of rotating vane can be improved, vibration and noise can be reduced again。
Additionally, by ring-type tabular surface 464, the current risen along the bottom surface of endless member 462 will not with the outboard end edge striding across big footpath blade 460 and auxiliary blade 468 and the current that flow are interferenceed, this effect of generation suppressing bubble further can be played。
<the 2nd embodiment>
Fig. 6 indicates that the figure of the summary of the pump main body of the draining pump of the 2nd embodiment of the present invention。Herein, the longitudinal section that Fig. 6 (a) obtains to cut off pump main body 530 by the face of the centrage of outlet 546 described later, Fig. 6 (b) is to be cut off the pump main body 530 eliminating rotating vane 550 axonometric chart observed from obliquely downward by the face of the centrage of outlet 546。Rotating vane shown in Fig. 6 (a) 250 is identical with the rotating vane 250 shown in Fig. 3, links with such as motor 10 as shown in Figure 8, is set to rotate。
As shown in Figure 6, the pump main body 530 of the draining pump of the 2nd embodiment possesses: the housing 540 of upper opening；The cover 532 chimeric with the upper opening of housing 540；And it is configured at the rotating vane 550 in the pump chamber 544 by housing 540 and cover 532 delimitation。Herein, the aforesaid each part constituting pump main body 530 such as can be set to plastics system。
Housing 540 has: at the pump chamber 544 being internally formed；There is the suction tube 542 of the tubulose of the suction inlet 543 connected with pump chamber 544 from below；And be arranged at the side of pump chamber 544 and there is the discharge pipe 545 of tubulose by the outlet 546 of pump chamber 544 and ft connection。Symbol 546a is the outlet 546 discharge port entrance to pump chamber 544 opening。
In the 2nd embodiment, housing 540 has upper surface 548a at the height identical with the lower end of discharge port entrance 546a, possessing the jut 548 of ring-type on the inner side, the jut 548 of this ring-type has from medial surface 548b prominent to the medial center direction of housing 540 for discharge port entrance 546a。
On the other hand, cover 532 has the side of sidewall portion 533 of the ring-type chimeric with the upper opening of housing 540, links with housing 540 when having sandwiched seal member 534。
The lower end 533a of the side of sidewall portion 533 of above-mentioned ring-type extends to the height identical with the upper end of discharge port entrance 546a, and the medial surface 533b of the side of sidewall portion 533 of ring-type is formed as from shape prominent to the medial center direction of cover 532 for discharge port entrance 546a。
Then, with reference to Fig. 6 (a) while the effect of the 2nd embodiment of the present invention is described。
First, when making not shown motor rotate, rotating vane 550 rotates, and water is drawn in pump chamber 544 from suction inlet 543, and the water sucked is discharged from outlet 546。
The water sucked from suction inlet 543 is applied in centrifugal force by rotating vane 550, so in the radial direction of this rotating vane 550, forming air layer in inner side, forms water layer in outside, forms the air being referred to as liquid-gas interface and the alveolar layer of aqueous phase mixing in its boundary。
Result from the bubble of liquid-gas interface when crossing the upper end of rotating vane 550, pressed to peripheral direction by centrifugal force and flow out。
Herein, in the 2nd embodiment, the side of sidewall portion 533 of ring-type it is formed with at cover 532, and the jut 548 of ring-type it is formed with at housing 540, so in the internal diameter of pump chamber 544, the part of (part of symbol 533b) more top than discharge port entrance 546a side and on the lower (part of the symbol 548b) part than discharge port entrance 546a is little。The centrifugal action produced accordingly, for the rotation by rotating vane 550 is in the power of the inner wall part of pump chamber 544, and compared with the part of discharge port entrance 546a, the power of the part of be applied to it side and downside is little。
Therefore, in this 2nd embodiment, identical with the 1st embodiment, the major part being flowed into the water of discharge port entrance 546a from pump chamber 544 becomes the water from the discharge port entrance 546a relative part (part of the discharge port entrance 546a of pump chamber 544) strong with the effect of centrifugal force, and the water comprising a large amount of bubble reaching the upside peripheral part of pump chamber 544 is flowed into the amount minimizing of discharge port entrance 546a。It is as a result, it is possible to suppress at the water being flowed into discharge port entrance 546a from pump chamber 544, namely can suppress to be mixed into bubble from the draining that outlet 546 flows out, it is possible to realize quietness during operating。
Additionally, the jut 548 of ring-type is possessed on the downside of the inner surface of housing 540, thus compared with existing draining pump, the distance of the peripheral end of rotating vane 550 and the jut 548 of the ring-type of the inner surface being formed at housing 540 is divided into 2 parts of upside pump chamber and downside pump chamber in appearance closer to, the pump chamber 544 of pump main body 530 with rotating vane 550 for boundary。
Thus, the water discharged from outlet 546 can be discharged from above-mentioned apparent upside pump chamber, can play and not interference and stable effect with the current from apparent downside pump chamber。
Additionally, in this 2nd embodiment, it is also possible to use Fig. 2, the rotating vane shown in 4 or 5。
The figure of the result that noise when Fig. 7 indicates that the operating of the existing draining pump shown in the draining pump of the 1st embodiment to the present invention shown in Fig. 1 and 2 and Fig. 8 and 9 compares。In the coordinate diagram shown in Fig. 7, transverse axis represents frequency, and additionally the longitudinal axis represents the sound press grade of noise。It addition, the dotted line in coordinate diagram represents the result of existing draining pump, solid line represents the draining pump of the present invention。
As it is shown in fig. 7, existing draining pump illustrates identical generation tendency with the draining pump of the 1st embodiment of the present invention in the sound press grade relative with frequency。
But, acoustically, in the frequency band of about the 1000～3000Hz easily experienced as noise, the draining pump of the 1st embodiment of the present invention is compared with existing draining pump, it is shown that the tendency of sound press grade step-down, this is identified by experiment。
It addition, the present invention is not limited to above-mentioned each embodiment, it is possible to apply various change。
Such as, in the above-described embodiments, exemplified with the side of sidewall portion and the integral part of situation of cover that make ring-type in the cover of draining pump but it also may be configured to the side of sidewall portion split of this ring-type is constituted and is arranged in pump chamber。
Especially, if the annulus that only cover of the draining pump of the present invention is prominent compared with the cover of the existing draining pump shown in Fig. 9 is formed as the endless member of split, the ring-shaped article of this split is configured in pump chamber, then only just can obtain the effect of the present invention by adding above-mentioned endless member at existing draining pump。
It addition, in the 2nd embodiment, describe the jut 548 being formed with ring-type at housing 540, but the present invention be not limited to this, it is also possible to jut 548 is set to and housing 540 split, is installed on be set to split 548 in pump chamber 544。
Additionally, the rotating vane being applicable to the present invention can also apply to the various devices beyond above-mentioned device。Such as can also configure multiple auxiliary blades between the blade of big footpath, or omit auxiliary blade itself, additionally, the number of big footpath blade, auxiliary blade, path blade is not limited to above-mentioned 4, can certainly be the rotating vane also with other structures in addition。
In addition, it is also possible to without departing from the spirit and scope of the invention above-mentioned each embodiment is applied various changes。
Claims (5)
1. a draining pump, is formed by motor and pump main body, and described pump main body possesses: upper end opening and be provided with suction inlet in bottom and be provided with the housing of outlet at sidepiece；It is linked to the rotating vane of described motor；And at central part, there is through hole and be installed on the cover of upper end of described housing；Being delimited pump chamber by described housing and described cover, and described outlet possesses the discharge port entrance to described pump chamber opening, described draining pump is characterised by,
The internal diameter of the top side of discharge port entrance described in the ratio of described pump chamber is less than the internal diameter of the part of the described discharge port entrance of described pump chamber, or the internal diameter less than the part of described discharge port entrance of described pump chamber and the downside of described discharge port entrance。
2. draining pump according to claim 1, it is characterised in that
Described cover has the side of sidewall portion of the ring-type chimeric with the described opening of described housing, the lower end of the side of sidewall portion of described ring-type extends to the height identical with the upper end of described discharge port entrance, and the medial surface of the side of sidewall portion of described ring-type is formed as the shape prominent to the inner side of described cover from described discharge port entrance。
3. draining pump according to claim 1 and 2, it is characterised in that
Described housing is also equipped with the protuberance of ring-type, and the protuberance of this ring-type extends to the height identical with the lower end of described discharge port entrance, and medial surface is prominent to the inner side of described pump chamber from described discharge port entrance。
4. draining pump according to any one of claim 1 to 3, it is characterised in that
Described rotating vane possesses: the axle portion linked with the output shaft of described motor；From described axle portion along the multiple big footpath blade that radiation direction extends；And the multiple path blades linked with the lower end edge portion of described big footpath blade。
5. draining pump according to any one of claim 1 to 4, it is characterised in that
It is additionally provided with auxiliary blade between adjacent described big footpath blade。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-252323 | 2014-12-12 | ||
| JP2014252323A JP6602008B2 (en) | 2014-12-12 | 2014-12-12 | Drainage pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105697384A true CN105697384A (en) | 2016-06-22 |
| CN105697384B CN105697384B (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510800309.3A Active CN105697384B (en) | 2014-12-12 | 2015-11-19 | Water discharge pump |
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| Country | Link |
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| JP (1) | JP6602008B2 (en) |
| KR (1) | KR102378637B1 (en) |
| CN (1) | CN105697384B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019100253A (en) * | 2017-12-01 | 2019-06-24 | 株式会社不二工機 | Drainage pump |
| JP2019100319A (en) * | 2017-12-07 | 2019-06-24 | 株式会社不二工機 | Drainage pump rotor blade and drainage pump comprising the same |
| JP7367982B2 (en) * | 2020-03-17 | 2023-10-24 | 株式会社不二工機 | drain pump |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06193582A (en) * | 1992-12-24 | 1994-07-12 | Hitachi Ltd | Centrifugal pump for drainage of dehumidified water for air conditioner |
| JPH0763188A (en) * | 1993-08-20 | 1995-03-07 | Taisan Kogyo Kk | Drainage pump |
| JP3095259U (en) * | 2002-12-03 | 2003-07-25 | 利大溪工業股▲分▼有限公司 | Drain pump for air conditioning equipment |
| JP2004060463A (en) * | 2002-07-25 | 2004-02-26 | Taisan Kogyo Kk | Drainage pump |
| JP2004353492A (en) * | 2003-05-27 | 2004-12-16 | Saginomiya Seisakusho Inc | Vertical-shaft centrifugal pump and impeller for pump |
| JP2012082790A (en) * | 2010-10-14 | 2012-04-26 | Fuji Koki Corp | Drainage pump |
| JP2012149529A (en) * | 2011-01-17 | 2012-08-09 | Saginomiya Seisakusho Inc | Drainage pump for air conditioner |
| CN102996462A (en) * | 2011-08-30 | 2013-03-27 | 株式会社不二工机 | Drain pump |
| JP2013253583A (en) * | 2012-06-08 | 2013-12-19 | Saginomiya Seisakusho Inc | Drain pump |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0612785U (en) * | 1991-12-18 | 1994-02-18 | 愛知電機株式会社 | Air conditioner drainage pump |
| JP5889051B2 (en) | 2011-08-30 | 2016-03-22 | 株式会社不二工機 | Drainage pump |
-
2014
- 2014-12-12 JP JP2014252323A patent/JP6602008B2/en active Active
-
2015
- 2015-10-01 KR KR1020150138423A patent/KR102378637B1/en active IP Right Grant
- 2015-11-19 CN CN201510800309.3A patent/CN105697384B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06193582A (en) * | 1992-12-24 | 1994-07-12 | Hitachi Ltd | Centrifugal pump for drainage of dehumidified water for air conditioner |
| JPH0763188A (en) * | 1993-08-20 | 1995-03-07 | Taisan Kogyo Kk | Drainage pump |
| JP2004060463A (en) * | 2002-07-25 | 2004-02-26 | Taisan Kogyo Kk | Drainage pump |
| JP3095259U (en) * | 2002-12-03 | 2003-07-25 | 利大溪工業股▲分▼有限公司 | Drain pump for air conditioning equipment |
| JP2004353492A (en) * | 2003-05-27 | 2004-12-16 | Saginomiya Seisakusho Inc | Vertical-shaft centrifugal pump and impeller for pump |
| JP2012082790A (en) * | 2010-10-14 | 2012-04-26 | Fuji Koki Corp | Drainage pump |
| JP2012149529A (en) * | 2011-01-17 | 2012-08-09 | Saginomiya Seisakusho Inc | Drainage pump for air conditioner |
| CN102996462A (en) * | 2011-08-30 | 2013-03-27 | 株式会社不二工机 | Drain pump |
| JP2013253583A (en) * | 2012-06-08 | 2013-12-19 | Saginomiya Seisakusho Inc | Drain pump |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20160072007A (en) | 2016-06-22 |
| JP6602008B2 (en) | 2019-11-06 |
| KR102378637B1 (en) | 2022-03-25 |
| JP2016113941A (en) | 2016-06-23 |
| CN105697384B (en) | 2020-05-08 |
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