CN1971054A - Pump - Google Patents
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- CN1971054A CN1971054A CN200610126459.1A CN200610126459A CN1971054A CN 1971054 A CN1971054 A CN 1971054A CN 200610126459 A CN200610126459 A CN 200610126459A CN 1971054 A CN1971054 A CN 1971054A
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Abstract
The invention provides a new type of pump, which can recover the performance quickly even the air is mixed into the canister. A rotor (15A) rotating around the central axis O has an approximately annular part (158) eccentricing relatively to the central axis. The upper casing (25A) for admitting the rotor is concentric with the central axis and has a canister-shape inner perisporium (253b) sliding with the outer perisporium of the approximately annular part (158b). The liquid channals (P1, P2) are formed between the canister-shape inner perisporium of the upper casing and the outer perisporium of the approximately annular part. The canister-shape inner perisporium of the upper casing has a sucking port (256a) and a disgorging port (257a) provided with each other closely. The liquid sucking from the sucking port disgorges from the disgorging port by the channal.
Description
Technical field
The present invention relates to pump, relate in particular to and easily to discharge the pump of sneaking into the air in the tube.
Background technique
Pump is the machine of liquid such as pressurized delivered water, is liquid is sucked the machine that the back spues from discharge opening (outflow opening) from suction port (inflow entrance).Pump has all kinds, a kind of as in its type, centrifugal pump widely known to.Centrifugal pump is the machine that outputs to after by impeller liquid such as water being quickened rapidly in the spiral case of peripheral part.In other words, centrifugal pump is a machine of using the centrifugal force pressurized delivered liquid that obtains by wheel rotor.This centrifugal pump can be realized high flow capacity and high-lift, and efficient is also high, therefore, is widely adopted as the form of pump.
On the one hand, well-known, selling has various personal computers, and CPU and storage etc. are housed in the personal computer.CPU has and increases the tendency that the heat that produces in the running increases thereupon with the clock frequency.Therefore, be necessary the heat that produces in the CPU running is discharged to the outside.
In the past,, adopted the air cooling system of combined heat radiator and fan generally as the heat extraction mechanism of CPU.But on the personal computer that has adopted this air cooling system, having the main cause that noise takes place is " antitriptic wind sound " problem.In order to do one's utmost to reduce this " antitriptic wind sound ", exploitation has having adopted the personal computer of constituent aspect the cooling of CPU and caused attractes attention.
Above-mentioned centrifugal pump in this constituent, is used for pressurized delivered water.This centrifugal pump has the centrifugal force pressurized delivered of the impeller that will rotate from water (liquid) utilization that the suction port (inflow entrance) that is arranged at basket (tube) central part is supplied with, and the structure that spues of the discharge opening (outflow opening) from the peripheral part that is arranged at basket (tube).Its result, if air is blended in the tube of centrifugal pump for some reason, this air is stranded in the central part of basket (tube) because of centrifugal force.If the air quantity of this delay increases, there is the shortcoming of the efficient (performance) remarkable descend (deterioration) of centrifugal pump.Thereby, undertaken discharging the work that is stranded in the air in the basket by the whole bag of tricks to the outside always.
For example, the scheme of proposition has from the back pipe box of the blade inlet radially inner side of rotor the circulation hole is set, the pump (for example, with reference to patent documentation 1: the spy opens the 2001-153083 communique) that the air that is stranded in internal rotor is discharged reliably.
On the other hand, known have for fear of the pressure loss that is caused by the rapid expansion of pipeline of the runner from suction port (inflow entrance) to impeller, and the central part that has at basket makes the centrifugal pump of cylindrical duct towards the structure of impeller direction extension.
Below, with reference to Fig. 1 and Fig. 2, the centrifugal pump with this structure is described.Illustrated centrifugal pump 10 is as the motor employing DC brushless motor of following rotating drive impeller.
Illustrated centrifugal pump 10 possesses the stationary axle 11 that extends along predetermined central shaft O direction (being above-below direction in illustrated example) at basket (will narrate in the back) center, and by bearing 13, rotor 15 rotates and is installed on freely on this stationary axle 11.Rotor 15 have rotation be installed on the cylindrical part 151 of extending towards central shaft O direction on the bearing 13 freely, in the annulus portion 153 of direction (the radial direction outside) extension of upper end edge and the central shaft O direction quadrature of this cylindrical part 151 and be fixed in the circular permanent magnet 155 concentric on the outer circumference end below this annulus portion 153 with stationary axle 11.This permanent magnet 155 along the circumferential direction is magnetized.
The lower end of stationary axle 11 by the supporting portion of following lower casing, is fixed in along on the flat substrate 17 of circular that extends with the direction of central shaft O direction quadrature (the radial direction outside).The interarea of this substrate 17 (above) on the 17a, fixing and the stator 19 of DC brushless motor is installed.Stator 19, having with stationary axle 11 is the center, radially a plurality of stator cores 191 of Yan Shening and be wound on stator coil 193 in each stator core 191 respectively.
Between stator 19 and rotor 15, dispose lower casing 21.In detail, lower casing 21 has: the roughly cylindrical lower support portion 211 of the underpart of fixing and support fixation axle 11; The following first annulus portion 212 that faces one another ground, extends across predetermined space with the cylindrical part 151 of rotor 15 from the one side direction radial direction outside, upper end portion of lower support portion 211; First cylindrical part 213 that faces one another ground, extends upward from the outer circumference end of the first annulus portion 212 across predetermined space with the outer circumferential face of the cylindrical part 151 of rotor 15; The following second annulus portion 214 that faces one another ground, extends to the radial direction outside across predetermined space with the plectane portion 153 of rotor 15 from the upper end of first cylindrical part 213; Second cylindrical part 215 that faces one another ground, extends downwards from the outer circumference end of the second annulus portion 214 across predetermined space with the inner peripheral surface of the permanent magnet 155 of rotor 15; Following the 3rd annulus portion 216 that faces one another ground, extends to the radial direction outside across predetermined space with the permanent magnet 155 of rotor 15 from the periphery lower end of second cylindrical part 215; With the outer circumferential face of the permanent magnet 155 of rotor 15 across predetermined space face one another ground, the 3rd cylindrical part 217 of extending upward from the outer circumference end of the 3rd annulus portion 216 and from the 4th annulus portion 218 that last week, end extended to the radial direction outside of the 3rd cylindrical part 217.
On the annulus portion 153 of rotor 15, be fixed with stationary axle 11 be the center, a plurality of blades 157 of extending radially along radial direction.Constitute impeller by these a plurality of blades 157 and above-mentioned annulus portion 153 and above-mentioned cylindrical part 151.In other words, rotor 15 is made of impeller and permanent magnet 155.
Below, except Fig. 1 and Fig. 2,, explain the structure of shell 25 also with reference to Fig. 3 to Fig. 5.Last shell 25 possesses: the upper support cylindraceous portion 251 of the upper end portion of fixing and support fixation axle 11; Only leave intended distance from this upper support portion 251, and and upper support portion 251 between form the cylindrical duct 252 of runner with the space; Cover above-mentioned a plurality of blade 157 ground lid shape portion 253 that extend in the outside from cylindrical duct 252 along radial direction; And, with the annulus portion 254 of extending from the periphery lower end edge radial direction outside of lid shape portion 253 with facing one another above the 4th annulus portion 218 of lower casing 21.
The above-mentioned shell 25 of going up further possesses the suction pipe (intake channel) 256 that is used for sucking liquid such as (inflows) water and the discharge pipe (outlet pipe) 257 of (outflow) liquid that spues.
Suction pipe (intake channel) 256 be disposed at along extending with the direction (radial direction or substantially horizontal) of central shaft O quadrature cover shape portion 253 above, and pass through suction port (inflow entrance) 256a at the central part of last shell 25 and be connected with above-mentioned cylindrical duct 252.Therefore, liquid in suction pipe 256 along radial direction from outer side inflow inboard, and be drawn out on the impeller by cylindrical duct 252 along central shaft O direction vertical curve at suction port 256a.
Discharge pipe (outlet pipe) 257 with the face (horizontal plane) of central shaft O quadrature in extend and be disposed at above the annulus portion 254, lid shape portion by discharge opening (outflow opening) 257a and last shell 25 253 is connected at its peripheral part.Therefore, the liquid of pressurized delivered flows through discharge pipe 257 by discharge opening (outflow opening) 257a from the peripheral part that covers shape portion 253 by the impeller that rotates, and along continuous straight runs spues.
In addition, the upper end of cylindrical duct 252 is by 258 sealings of discoideus lid.Also have, annulus portion 254 side in its lower section has circular recess 254a.Be inserted with the circular bump 219 and the annular seal rubber 23 of lower casing 21 on this circular recess 254a, and the space of closure clamp between lower casing 21 and last shell 25.In a word, by the combination of lower casing 21 and last shell 25, constituted the tube (basket) of centrifugal pump 10.
The sectional view of the assembly of shell 25 and rotor 15 has been made up in expression in Fig. 6.Configuration relation in Fig. 7, representing between a plurality of blades 157 of the pipe 252 of shell 25 and rotor 15.To the runner between the impeller,, make cylindrical duct 252 extend to the position of close impeller about suction pipe (intake channel) 256 in the last shell 25 for fear of because of sharply enlarging the pressure loss that pipeline causes.
Summary of the invention
In having the existing centrifugal pump 10 of this structure, such shown in the arrow A of Fig. 8, liquid flows to inboard in suction pipe (intake channel) 256 along radial direction (substantially horizontal) from the outside, and by in suction port (inflow entrance) the 256a inflow cylindrical duct 252, and for example such shown in the arrow B of Fig. 8, in cylindrical duct 252, along the direction flow direction below of central shaft O.
Relative therewith, sneak into the air in the existing centrifugal pump 10, in the running of this centrifugal pump 10,, be concentrated on the central shaft O direction because of the centrifugal force of liquid.But because of the existence of cylindrical duct 252, the air that this is sneaked on the position shown in the broken circle of the C of Fig. 8, is trapped in as bubble on the peripheral part of cylindrical duct 252.In other words, because the air (bubble) of this delay does not enter the situation in the runner, therefore,, be stranded in for a long time as bubble on the peripheral part of cylindrical duct 252 at centrifugal pump 10 run durations.
Therefore, in existing centrifugal pump 10, the problem that exists its performance significantly to descend.
Therefore, even problem of the present invention is to provide air to sneak into the novel pump that also can recover its performance in the tube rapidly.
The pump that obtains according to the present invention, it is characterized in that, have: the rotor 15A, the 15B that dispose rotationally around central shaft O, promptly 153a possesses the roughly ring-shaped member 158 of above-mentioned relatively eccentricity of central axis, the above-mentioned rotor of 158A and tube 21,25A, the 25B of this rotor of folding and unfolding in the above, promptly concentric and have the slide above-mentioned tube of the tubular inner circle wall 253b that joins with the periphery wall 158b of above-mentioned roughly ring-shaped member with above-mentioned central shaft, and between the periphery wall 158b of the tubular inner circle wall 253b of above-mentioned tube and above-mentioned roughly ring-shaped member, be formed with flow channel for liquids P1, P2.
In said pump, the tubular inner circle wall 253b of above-mentioned tube also can make it to constitute, and has the suction port 256a and the discharge opening 257a of setting adjacent to each other, and the liquid that sucks from above-mentioned suction port spues from above-mentioned discharge opening by above-mentioned runner.
Above-mentioned roughly ring-shaped member 158 can be fixedly mounted on the above-mentioned rotor.In this case, said pump 15A it is desirable to further possess: the slide block 27 that the tubular inner circle wall of the above-mentioned tube between above-mentioned suction port and above-mentioned discharge opening is given prominence to above-mentioned runner sliding freely; And the front end that makes this slide block contacts the afterburning parts 28 of the periphery wall ground of above-mentioned roughly ring-shaped member to above-mentioned slide block reinforcing.Above-mentioned afterburning parts for example can be made of spring.
Above-mentioned rotor 15B can also possess the eccentric cartridge 159 that is provided with and has the cylindrical outer wall 159c that joins with the inner circle wall 158c slip of above-mentioned roughly ring-shaped member 158A of above-mentioned relatively central shaft O in the above.In this case, above-mentioned roughly ring-shaped member 158A is arranged on the top 153a of above-mentioned rotor sliding freely.Said pump 10B can further possess the projection 29 of tubular inner circle wall outstanding general triangular shape to above-mentioned runner of the above-mentioned tube between above-mentioned suction port and above-mentioned discharge opening, and above-mentioned roughly ring-shaped member 158A can have the depressed part 158d of the general triangular shape that joins with above-mentioned projection slip.
In addition, above-mentioned rotor 15A, 15B can have the circular permanent magnet 155 concentric with above-mentioned central shaft O.In this case, said pump possesses by above-mentioned tube and is disposed at stator 19 on the opposing side of above-mentioned permanent magnet.
In the present invention, the roughly ring-shaped member that on rotor, possesses relative eccentricity of central axis, the tube of this rotor of folding and unfolding have with central shaft concentric and with the tubular inner circle wall that the periphery wall slip of ring-shaped member is roughly joined, therefore, also can recover its performance rapidly even air is sneaked in the tube.
Description of drawings
Fig. 1 is the exploded perspective view of the surface structure of the existing centrifugal pump of expression.
Fig. 2 is the sectional view along the II-II line of Fig. 1.
Fig. 3 is the stereogram that a direction that is used in last shell one side from the bottom surface on the centrifugal pump shown in Figure 1 is observed.
Fig. 4 is the stereogram that another direction that is used in last shell one side from the bottom surface on the centrifugal pump shown in Figure 1 is observed.
Fig. 5 is to use the sectional view along the V-V line of the last shell on centrifugal pump shown in Figure 1.
The amplification view of the assembly of Fig. 6 has been to use combination on centrifugal pump shown in Figure 1 last shell and rotor.
Fig. 7 is the plan view that expression is used in the configuration relation between a plurality of blades of the pipe of the last shell on the centrifugal pump shown in Figure 1 and rotor.
Fig. 8 is the sectional view of last shell that is used to illustrate the action of existing centrifugal pump shown in Figure 1.
Fig. 9 is the exploded perspective view of the surface structure of the expression pump relevant with the first embodiment of the present invention.
Figure 10 is the view sub-anatomy along the X-X line of Fig. 9.
Figure 11 is the sectional arrangement drawing of pump shown in Figure 10.
Figure 12 is to use the stereogram of the rotor on pump shown in Figure 9.
Figure 13 is the plan view of rotor shown in Figure 12.
Figure 14 is the sectional view along the XIV-XIV line of Figure 13.
Figure 15 is the front view of rotor shown in Figure 12.
Figure 16 is the sectional view that is used to illustrate the operation of pump shown in Figure 9.
Figure 17 is the exploded perspective view that the rotor that is used on the pump of the second embodiment of the present invention is represented together with bearing.
Figure 18 is the stereogram of rotor shown in Figure 17.
Figure 19 is the sectional view that is used to illustrate the operation of the pump that possesses rotor shown in Figure 17.
Among the figure:
10A, the 10B-pump, 11-stationary axle, 13-bearing, 15A, the 15B-rotor, 153-annulus portion is above the 153a-, 158,158A-is ring-shaped member roughly, above the 158a-, and the 158b-periphery wall, the 158c-inner circle wall, 158d-depressed part, 17-substrate, the 19-stator, 21-lower casing, 25A, the last shell of 25B-, 253A-lid shape portion, 253a-upper inside walls, 253b-tubular inner circle wall, 254-annulus portion, 256-suction pipe (intake channel), 256a-suction port (inflow entrance), 257-discharge pipe (outlet pipe), 257a-discharge opening (outflow opening), 27-slide block, 28-spring (afterburning parts), the 29-projection, the O-central shaft.
Embodiment
Describe embodiments of the present invention with reference to the accompanying drawings in detail.
Be suitable for the basic structure of pump of the present invention, identical with the existing centrifugal pump 10 of reference Fig. 1 and Fig. 2 explanation, difference is the structure of rotor and last shell.Therefore, to having the same reference marks of parts note of identical performance with the parts of Figure 1 and Figure 2, below, for the purpose of simplifying the description, only to describing with existing centrifugal pump 10 different parts.
Below with reference to Fig. 9 to Figure 11, the pump 10A relevant with the first embodiment of the present invention is described.Fig. 9 is the exploded perspective view of the surface structure of expression pump 10A.Figure 10 is the view sub-anatomy along the X-X line of Fig. 9.Figure 11 is the sectional arrangement drawing of pump 10A shown in Figure 10.
As mentioned above, pump 10A except the place that rotor and last shell change, has the structure identical with the existing centrifugal pump 10 of Figure 1 and Figure 2 as following.Therefore, rotor is reached upward shell difference note reference marks 15A and 25A.
Illustrated rotor 15A possesses roughly the ring-shaped member 158 except replacing a plurality of blades 157, has the structure identical with existing rotor 15.As following, roughly ring-shaped member 158, from central shaft O eccentric and be arranged at rotor 15A annulus portion 153 above on the 253a.
On the one hand, last shell 25A, in the time of except cancellation cylindrical duct 252, as following, beyond the change of lid shape portion, have with existing on the identical structure of shell 25.Therefore, to the lid shape note reference marks 253A of portion.
The a plurality of blades 157 of existing relatively lid shape portion's 253 coverings, the lid shape 253A of portion has the upper inside walls 253a that joins with the top 158a slip of above-mentioned ring-shaped member 158.Also have, the lid shape 253A of portion has concentric and the tubular inner circle wall 253b that joins of the periphery wall 158b slip of ring-shaped member 158 as following and roughly with central shaft O.Thus, as the space formation flow channel for liquids between the periphery wall 158b portion of the tubular inner circle wall 253b of the lid shape 253A of portion of the part of tube and ring-shaped member 158 roughly.
Relatively on existing in the shell 25 suction pipe (intake channel) 256 be configured in along extending with the direction (radial direction or substantially horizontal) of the direction quadrature of central shaft O cover above the shape portion 253 on, on relevant present embodiment among the shell 25A, suction pipe (intake channel) 256 with the face (horizontal plane) of the direction quadrature of central shaft O in extension and on being configured in above the annulus portion 254.In addition, discharge pipe (outlet pipe) 247 is identical with the existing situation that goes up shell 25, with the face (horizontal plane) of the direction quadrature of central shaft O in extension and on being configured in above the annulus portion 254.In a word, suction pipe (intake channel) 256 is configured in horizontal plane adjacent to each other and parallel with discharge pipe 247 (outlet pipe).
Also have, suction pipe (intake channel) 256 is connected with the lid shape 253A of portion of last shell 25A by following suction port (inflow entrance), and discharge pipe (outlet pipe) 257 also is connected with the lid shape 253A of portion of last shell 25A by following discharge opening (outflow opening).In other words, suction port (inflow entrance) and discharge opening (outflow opening) are on the tubular inner circle wall 253b of the lid shape 253A of portion, and be adjacent to each other and be provided with.Thus, (inflow) liquid that sucks from suction port (inflow entrance), by above-mentioned runner from discharge opening (outflow opening) spue (outflow).
In illustrated pump 10A, roughly ring-shaped member 158 is fixedly installed on the rotor 15A (annulus portion 153).Pump 10A further possesses slide block 27 and spring 28, and the tubular inner circle wall 253b of the lid shape portion 253A of slide block 27 between suction port (inflow entrance) and discharge opening (outflow opening) is outstanding to above-mentioned runner sliding freely.Spring 28 is to slide block 27 reinforcings, so that the front end of slide block 27 contacts the roughly periphery wall 158b of ring-shaped member 158.In a word, spring 28 works as the afterburning parts to slide block 27 reinforcings.
In addition, last shell 25A above the annulus portion 254 between suction pipe (intake channel) 256 and discharge pipe (outlet pipe) 247, possesses the folding and unfolding portion 259 of folding and unfolding spring 28 and slide block 27 sliding freely.
Below, the rotor 15A of present embodiment is illustrated among Figure 12 to Figure 15 together with bearing 13.Figure 12 is the stereogram of rotor 15A.Figure 13 is the plan view of rotor 15A.Figure 14 is the sectional view along the XIV-XIV line of Figure 13.Figure 15 is the front view of rotor 15A.
As Figure 12 to as shown in Figure 15, as can be known roughly ring-shaped member 158 relative central shaft O off-centre and be arranged on rotor 15A annulus portion 153 top 153a above.Like this, the roughly ring-shaped member 158 relative central shaft O off-centre of rotor 15A, and it is desirable to thicken roughly ring-shaped member 158, so that the center of gravity of rotor 15A is consistent with central shaft O.Thus, can realize vibrating less pump 10A.
Also have, pump 10A utilizes the structure of existing centrifugal pump 10, therefore, can realize the generalization of parts, and can shorten the construction cycle.Thus, by increasing kind, can reduce cost.
The pump 10A of this structure is self contained pump, therefore, also can recover its performance rapidly even air is sneaked in the tube.Thus, can improve the reliability of pump 10A.
Below, the operation of the pump 10A of present embodiment is described with reference to Figure 16.Among Figure 16, suction pipe (intake channel) 256 and discharge pipe (outlet pipe) 257 are disposed at the left side of pump 10A.Therefore, on the left side wall of the tubular inner circle wall 253b of suction port (inflow entrance) 256a and discharge opening (outflow opening) the 257a lid shape 253A of portion that is arranged at shell 25A also adjacent to each other.Such as mentioned above, at the tubular inner circle wall 253b of the lid shape 253A of portion with roughly constitute flow channel for liquids between the periphery wall 158b of ring-shaped member 158.This runner, the slide block 27 by the tubular inner circle wall 253b from the lid shape 253A of portion gives prominence to this runner as following, is divided into two spaces (enclosed mass).
Figure 16 (A) represents that the tubular inner circle wall 253b of the lid shape 253A of portion of the periphery wall 158b of ring-shaped member 158 roughly and last shell 25A slides at its left side wall and joins, i.e. the state that only joins with the front end slip of slide block 27.Here, for convenience of explanation, the angle of rotation of the rotor 15A among this Figure 16 (A) is made as 0 °.Figure 16 (B), (C) and (D) expression respectively, make rotor 15A around central shaft O from the state of Figure 16 (A) state when the clockwise direction shown in the arrow D has rotated 90 °, 180 °, 270 °.
Shown in Figure 16 (A) like that, be under 0 ° the state, only to have an enclosed mass P1 in the angle of rotation of rotor 15A as above-mentioned runner.Below, with this enclosed mass P1 called after first enclosed mass.This first enclosed mass P1 communicates with suction port (inflow entrance) 256a and discharge opening (outflow opening) 257a.State when this first enclosed mass P1 represents its volume for maximum.
In this state, if rotor 15A D rotation in the direction of the clock, then such as shown by arrow E, the liquid in the first enclosed mass P1 flows to discharge opening (outflow opening) 257a from suction port (inflow entrance) 256a.
Like that, if rotor 15A half-twist in the direction of the clock, then roughly the tubular inner circle wall 253b of the lid shape 253A of portion of the periphery wall 158b of ring-shaped member 158 and last shell 25A joins in its depths inwall slip shown in Figure 16 (B).Its result, the volume reducing of the first enclosed mass P1, therefore, its inner liquid is such as shown by arrow E, by discharge opening (outflow opening) 257a from discharge pipe 257 spue (outflow).Meanwhile, as above-mentioned runner, form the second enclosed mass P2 that communicates with suction port (inflow entrance) 256a brand-newly.Its result, such as shown by arrow F, by suction port (inflow entrance) 256a, liquid is inhaled into (inflow) in the second enclosed mass P2 from suction pipe (intake channel) 256.
Like that, if rotor 15A Rotate 180 ° in the direction of the clock, then roughly the tubular inner circle wall 253b of the lid shape 253A of portion of the periphery wall 158b of ring-shaped member 158 and last shell 25A slides on its right side wall and joins shown in Figure 16 (C).Its result, the volume of the first enclosed mass P1 further reduces, thereby its inner liquid is such as shown by arrow E, by discharge opening (outflow opening) 257a from discharge pipe (outlet pipe) 257 spue (outflow).On the other hand, its volume of the second enclosed mass P2 increases, thereby liquid is such as shown by arrow F, is inhaled into (inflow) by suction port (inflow entrance) 256a in the second enclosed mass P2 from suction pipe (intake channel) 256.
Like that, if rotor 15A rotates 270 ° in the direction of the clock, then roughly the wound packages inner circle wall 253b of the lid shape 253A of portion of the periphery wall 158b of ring-shaped member 158 and last shell 25A slides on its front sidewall and joins shown in Figure 16 (D).Its result, the volume of the first enclosed mass P1 further reduces, thereby its inner liquid is such as shown by arrow E, by discharge opening (outflow opening) 257a from discharge pipe (outlet pipe) 257 spue (outflow).On the other hand, second its volume of enclosed mass P2 further increases, thereby liquid is such as shown by arrow F, is inhaled into (inflow) by suction port (inflow entrance) 256a in the second enclosed mass P2 from suction pipe (intake channel) 256.
If make rotor 15A further be rotated in a clockwise direction 90 ° from the state of Figure 16 (D), then turn back to the state of Figure 16 (A).Then, repeat same operation.
So, in pump 10A, eccentric roughly ring-shaped member 158 forms expansion chamber P2 and pressing chamber P1 with last shell 25A and slide block 27 interlocks.And, utilizing the rotation of rotor 15A, the volume of expansion chamber P2 increases and the volume of pressing chamber P1 reduces, and liquid is sucked and from discharge opening (outflow opening) 257a spue (outflow) from suction port (inflow entrance) 256a.Because pump 10A is self contained pump, even air is sneaked in the tube, also can recover the performance of pump 10A rapidly.Its result can improve the reliability of pump 10A.
In addition, the annulus portion 153 of rotor 15A can directly amplexiform on permanent magnet 155, also can be shaped to one with permanent magnet 155.Thus, can realize the miniaturization of rotor 15A.Also have, make lower casing 21 the be clipped in the middle stator 19 and the permanent magnet 155 of configuration motor, therefore, separate pump runner and electrical system fully.Therefore, can improve the durability of pump 10A.
Be used in the rotor 15B on the pump 10B of the second embodiment of the present invention below with reference to Figure 17 and Figure 18 explanation.Figure 17 is with the exploded perspective view of rotor 15B together with bearing 13 expressions.Figure 18 is the assembling stereogram of rotor 15B.
The basic structure of pump 10B is with identical with reference to the pump 10A of Fig. 9 to Figure 11 explanation, and the structure of rotor 15B is different from rotor 15A shown in Figure 12.Therefore, for having the same reference marks of part note of same performance with rotor 15A.Below, its difference is described.
The roughly ring-shaped member 158 of rotor 15A shown in Figure 12 is fixedly installed on the top 153a of annulus portion 153, and the roughly ring-shaped member 158A of the rotor 15B of present embodiment is arranged on the top 153a of annulus portion 153 of rotor 15B sliding freely.
Also have, in pump 10B, how many structures of shell on it has done change from the last shell 25A of pump 15A.Therefore, to last shell note reference marks 25B.Last shell 25B is different with last shell 25A, does not have folding and unfolding portion 259.
The pump 10B of this structure utilizes the structure of existing centrifugal pump 10, therefore, can realize the generalization of parts, and can shorten the construction cycle.Thus, can reduce cost by enriching class.
Because the pump 10B of this structure is self contained pump, even air is sneaked in the tube, also can recover its performance rapidly.Thus, can improve the reliability of pump 10B.
Below with reference to Figure 19, the operation of the pump 10B of present embodiment is described.In Figure 19, suction pipe (intake channel) 256 and discharge pipe (outlet pipe) 257 left sides that are arranged at pump 10B adjacent to each other.Therefore, on the left side wall of the tubular inner circle wall 253b of suction port (inflow entrance) 256a and discharge opening (outflow opening) the 257a lid shape 253A of portion that is arranged at shell 25B also adjacent to each other.As mentioned above, at the tubular inner circle wall 253b of the lid shape 253A of portion of last shell 25B with roughly constitute flow channel for liquids between the periphery wall 158b of ring-shaped member 158A.This runner is as following, and the projection 29 by the tubular inner circle wall 253b from the lid shape 253A of portion gives prominence to this runner can be divided into two spaces (enclosed mass).
Figure 19 (A) represents that the tubular inner circle wall 253b of the lid shape 253A of portion of the periphery wall 158b of ring-shaped member 158A roughly and last shell 25B slides at its left side wall and joins, i.e. projection 29 state of folding and unfolding in the depressed part 158d of ring-shaped member 158A roughly roughly.Here, for convenience of explanation, the angle of rotation of the rotor 15B among this Figure 19 (A) is set at 0 °.Figure 19 (B), (C) and (D) separately expression make rotor 15B around the state of central shaft O when the state of Figure 19 (A) has rotated 90 °, 180 °, 270 ° by the clockwise direction shown in the arrow D.
Shown in Figure 19 (A), like that, be under 0 ° the state, only to have an enclosed mass P1 in the angle of rotation of rotor 15B as above-mentioned runner.Below, with this enclosed mass P1 called after first enclosed mass.This first enclosed mass P1 communicates with suction port (inflow entrance) 256a and discharge opening (outflow opening) 257a.State when the first enclosed mass P1 represents its volume for maximum.
In this state, if rotor 15B D rotation in the direction of the clock, then the liquid in the first enclosed mass P1 is such as shown by arrow E, flows to discharge opening (outflow opening) 257a from suction port (inflow entrance) 256a.
Like that, if rotor 15B half-twist in the direction of the clock, then roughly the tubular inner circle wall 253b of the lid shape 253A of portion of the periphery wall 158b of ring-shaped member 158A and last shell 25B slides on the sidewall of portion depths within it and joins shown in Figure 19 (B).Its result, the volume reducing of the first enclosed mass P1, thereby its inner liquid is such as shown by arrow E, by discharge opening (outflow opening) 257a from discharge pipe (outlet pipe) 257 spue (outflow).Meanwhile, as above-mentioned runner, form the second enclosed mass P2 that communicates with suction port (inflow entrance) 256a brand-newly.Its result, such as shown by arrow F, by suction port (inflow entrance) 256a, liquid is inhaled into (inflow) in the second enclosed mass P2 from suction pipe (intake channel) 256.
Like that, if rotor 15B Rotate 180 ° in the direction of the clock, then roughly the tubular inner circle wall 253b of the lid shape 253A of portion of the periphery wall 158b of ring-shaped member 158A and last shell 25B slides on right side wall and joins shown in Figure 19 (C).Its result, the volume of the first enclosed mass P1 further reduces, thereby its inner liquid is such as shown by arrow E, by discharge opening (outflow opening) 257a from discharge pipe (outlet pipe) 257 spue (outflow).On the other hand, second its volume of enclosed mass P2 further increases, thereby liquid is such as shown by arrow F, is inhaled into (inflow) by suction port (inflow entrance) 256a in the second enclosed mass P2 from suction pipe (intake channel) 256.
Like that, if rotor 15B rotates 270 ° in the direction of the clock, then roughly the tubular inner circle wall 253b of the lid shape 253A of portion of the periphery wall 158b of ring-shaped member 158A and last shell 25B slides on its front sidewall and joins shown in Figure 19 (D).Its result, the volume of the first enclosed mass P1 further reduces, thereby its inner liquid is such as shown by arrow E, by discharge opening (outflow opening) 257a from discharge pipe (outlet pipe) 257 spue (outflow).On the other hand, second its volume of enclosed mass P2 further increases, thereby liquid is such as shown by arrow F, is inhaled into (inflow) by suction port (inflow entrance) 256a in the second enclosed mass P2 from suction pipe (intake channel) 256.
If the state from Figure 19 (D) further makes rotor 15A be rotated in a clockwise direction 90 °, then turn back to the state of Figure 19 (A).Then, repeat same operation.
So, in pump 10B, eccentric roughly ring-shaped member 158A and last shell 25B and projection 29 interlocks form expansion chamber P2 and pressing chamber P1.And, utilizing the rotation of rotor 15B, the volume of expansion chamber P2 increases and the volume of pressing chamber P1 reduces, and liquid is sucked and from discharge opening (outflow opening) 257a spue (outflow) from suction port (inflow entrance) 256a.Because pump 10B is self contained pump, even air is sneaked in the tube, also can recover the performance of pump 10B rapidly.Its result can improve the reliability of pump 10B.
More than describe the present invention by preferred implementation, certainly, the present invention is not limited on the above-mentioned preferred implementation.For example, in above-mentioned first embodiment, used spring, certainly, also can use spring afterburning parts in addition as afterburning parts.
Claims (6)
1. pump is characterized in that having:
Around the rotor that central shaft rotatably disposes, promptly possesses the described rotor of the roughly ring-shaped member of described relatively eccentricity of central axis in the above; And
The tube of this rotor of folding and unfolding, promptly concentric and have and the slide described tube of the tubular inner circle wall that joins of the periphery wall of described roughly ring-shaped member with described central shaft,
Between the periphery wall of described tubular inner circle wall and described roughly ring-shaped member, constitute flow channel for liquids.
2. pump according to claim 1 is characterized in that,
The tubular inner circle wall of described tube has the suction port and the discharge opening of setting adjacent to each other, and the liquid that sucks from described suction port spues from described discharge opening by described runner.
3. pump according to claim 2 is characterized in that,
Described roughly ring-shaped member is fixedly installed on the described rotor,
Described pump also possesses:
The slide block that the tubular inner circle wall of the described tube between described suction port and described discharge opening is given prominence to described runner sliding freely; And
Make the front end of this slide block contact the afterburning parts of the periphery wall ground of described roughly ring-shaped member to described slide block reinforcing.
4. pump according to claim 3 is characterized in that,
Described afterburning parts are made of spring.
5. pump according to claim 3 is characterized in that,
Described rotor also possesses with respect to described eccentricity of central axis setting in the above and has and the slide cartridge of the cylindrical outer wall of joining of the inner circle wall of described roughly ring-shaped member, and described roughly ring-shaped member is arranged on described rotor top sliding freely,
Described pump also possesses the projection of tubular inner circle wall outstanding general triangular shape to described runner of the described tube between described suction port and described discharge opening,
Described roughly ring-shaped member has the depressed part of the general triangular shape that joins with described projection slip.
6. according to each described pump in the claim 1 to 5, it is characterized in that,
Described rotor has the circular permanent magnet concentric with described central shaft, and described pump possesses by described tube and is disposed at stator on the opposing side of described permanent magnet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005338981 | 2005-11-24 | ||
| JP2005338981A JP2007146686A (en) | 2005-11-24 | 2005-11-24 | Pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1971054A true CN1971054A (en) | 2007-05-30 |
Family
ID=38112016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610126459.1A Pending CN1971054A (en) | 2005-11-24 | 2006-08-31 | Pump |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2007146686A (en) |
| CN (1) | CN1971054A (en) |
| TW (1) | TW200720550A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747443A (en) * | 2015-03-26 | 2015-07-01 | 广东美芝制冷设备有限公司 | Double-stage compressor and refrigerating equipment with same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5339129B2 (en) * | 2008-12-18 | 2013-11-13 | アイシン精機株式会社 | Electric pump |
-
2005
- 2005-11-24 JP JP2005338981A patent/JP2007146686A/en not_active Withdrawn
-
2006
- 2006-08-11 TW TW095129602A patent/TW200720550A/en unknown
- 2006-08-31 CN CN200610126459.1A patent/CN1971054A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747443A (en) * | 2015-03-26 | 2015-07-01 | 广东美芝制冷设备有限公司 | Double-stage compressor and refrigerating equipment with same |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200720550A (en) | 2007-06-01 |
| JP2007146686A (en) | 2007-06-14 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |