CN102465887B - Pump installation - Google Patents
Pump installation Download PDFInfo
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- CN102465887B CN102465887B CN201110321428.2A CN201110321428A CN102465887B CN 102465887 B CN102465887 B CN 102465887B CN 201110321428 A CN201110321428 A CN 201110321428A CN 102465887 B CN102465887 B CN 102465887B
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- prevent
- peel
- stator
- groove
- peeling
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Abstract
A kind of pump installation, can improve the resin component element of covering stator etc. is peeled off to the restraint suppressing from a wall member, wherein, described between wall member be formed with the partition being configured between stator and pump chamber. Pump installation comprises: a wall member (11), and this wall member has partition (11a), and this partition is disposed between the pump chamber and stator for impeller and rotor configuration, to prevent that the fluid in pump chamber from flowing into the configuration position of stator; And resinous resin component element, this resin component element forms in the mode that stator is covered. Partition (11a) is formed as flanged round-ended cylinder shape that roughly has, have cylindrical portion (11b), bottom (11c) and flange part (11d), resin component element is to cover cylindrical portion (11b) and bottom (11c) the mode of the surface coverage in a side of flange part (11d) is formed. Disposing at the outer peripheral face of cylindrical portion (11b) peeling off of preventing that resin component element from peeling off from a wall member (11) prevents with groove (11j).
Description
Technical field
The present invention relates to a kind of pump installation that disposes partition, this partition prevent fluid flow into dispose impeller andBetween the configuration position of the pump chamber of rotor and stator.
Background technology
At present, the known pump installation that has one to dispose dividing plate (partition), this partition prevents that fluid from flowing into configurationHave by (for example, with reference to patent documentation 1) between the pump chamber of impeller and rotor and the configuration position of stator and substrate. ?In the pump installation that patent documentation 1 is recorded, dividing plate is formed as flanged round-ended cylinder shape that has, and has cylindrical shapeShape portion and flange part. In addition, in this pump installation, in order to prevent that fluid from immersing stator and substrate, stator andSubstrate is covered by moulding resin. Except stator and substrate, this moulding resin also cover flange part oneThe surface of side and drum portion.
In addition, this moulding resin forms by injection mo(u)lding. Particularly, by will be provided with stator andThe dividing plate of substrate is disposed in mould, and by this mould of resin injection and make this hardening of resin, thereby formMoulding resin. In the pump installation of recording at patent documentation 1, be provided with slip-off preventing projection, this slip-off preventing is with prominentBe used from and prevent that dividing plate floats (being that moulding resin is peeled off from dividing plate) from moulding resin after opening mould. ExampleAs, this slip-off preventing is formed at the center of the bottom of drum portion by projection. In addition, this slip-off preventing projectionBe formed as flanged cylindric.
Patent documentation 1: Japanese Patent Laid-Open 2008-75462 communique
In the pump installation of recording at patent documentation 1, as mentioned above, owing to being formed with slip-off preventing on dividing plateBy projection, therefore can prevent that moulding resin from peeling off from dividing plate. But, in this pump installation, due to be everySlip-off preventing projection is formed on the bottom of the drum portion of plate, though therefore can effectively prevent moulding resin from everyPeel off the bottom of the drum portion of plate, but can not effectively prevent the flange part stripping of moulding resin from dividing plateFrom. Because the interface between flange part and moulding resin exposes at the outer peripheral face of pump installation, therefore, onceMoulding resin is peeled off from the flange part of dividing plate, and the possibility of fluid immersion stator etc. will increase.
In addition, in the pump installation of recording at patent documentation 1, be formed at the bottom of the drum portion of dividing plateThe slip-off preventing of center is little with the area of the flange part of projection. Therefore, in this pump installation, when molding treeDirection, i.e. an axial side effect of pump installation that the peeling force of fat is peeled off from a wall member towards moulding resinTime, moulding resin is less by the hook amount of the flange part of projection with respect to slip-off preventing. Therefore, at this pump installationIn, moulding resin is peeled off to the restraint suppressing from dividing plate less, thereby perhaps can not prevent fullyMoulding resin is peeled off from dividing plate.
Summary of the invention
Therefore, the first technical problem of the present invention is to provide one can effectively prevent that fluid from immersing by resinThe pump installation of the stator that member covers etc.
In addition, the second technical problem of the present invention is to provide a kind of resin structure that can improve covering stator etc.Part is peeled off the pump installation of the restraint suppressing from a wall member, on this wall member, be formed with and be disposed atPartition between stator and pump chamber.
For solving above-mentioned the first technical problem, the feature of pump installation of the present invention is to comprise: impeller; Rotor,On this rotor, impeller is installed; Stator, this stator arrangement is in the outer circumferential side of rotor; Pump chamber, in this pump chamberDispose impeller and rotor, and fluid flows through this pump chamber; Between wall member, this wall member has partition, shouldPartition is disposed between stator and pump chamber to prevent that the fluid in pump chamber from flowing into the configuration position of stator; And treeThe resin component element of fat system, this resin component element forms in the mode that stator is covered, and partition is formed as flangedRoughly have round-ended cylinder shape, have bottom, cylindrical portion and flange part, flange part is with the opening side from cylindrical portionThe mode that portion expands towards the radial outside of cylindrical portion forms, when bottom the disposing in axial direction of cylindrical portionWhen one side is made as a side, resin component element is to cover bottom and cylindrical portion and by the surface in a side of flange partThe mode covering forms, and disposes and peels off anti-stop in a side of flange part, and this is peeled off anti-stop and prevents resinMember is peeled off from a wall member.
Solving in the pump installation of the present invention of above-mentioned the first technical problem, when by joining in the axial direction of cylindrical portionWhen a side bottom being equipped with is made as a side, disposes and peel off anti-stop in a side of flange part, this is peeled off and preventsPortion prevents that resin component element from peeling off from a wall member. Therefore, can effectively prevent from covering flange part in a sideThe resin component element that forms of surperficial mode peel off from a side surface of flange part. Therefore, in the present invention,Even if the interface between flange part and resin component element exposes at the outer peripheral face of pump installation, also can effectively preventFluid immerses stator being covered by resin component element etc.
In the present invention, for example, peel off anti-stop and comprise: prevent from from flange part towards side-prominent peeling off usingProjection; And form or be fixed on to peel off and prevent from preventing member with peeling off of projection, at flange part and peel off anti-Only between member, be formed with gap, in this gap, dispose a part for resin component element. In this case,Peel off and prevent that member is as preventing that the anchor log that resin component element is peeled off from flange part from working. , in this situationUnder, can utilize to peel off to prevent that member from preventing that resin component element from peeling off from flange part.
In the present invention, comparatively it is desirable to, peel off anti-stop and comprise that multiple peeling off prevents from, by projection, peeling offPrevent that member is formed as circular, and be fixed on multiple peeling off in the mode that cylindrical portion is surrounded and prevent with prominentRise. In the time of such formation, and peel off anti-stop and be included in multiple the peeling off of cutting apart on the circumferencial direction of cylindrical portionPrevent the situation comparison of member, in the time of assemble pump device, peel off and prevent that member from easily processing. In addition, can cut downThe number of parts of pump installation. Particularly, comparatively it is desirable to, stator has stator core, at this statorOn iron core, be formed with multiple prominent utmost point portion, in this multiple prominent utmost point portion, be wound with driving coil across bobbin,Peel off and prevent that member from being to be formed as a circular ring flat-plate, the size of the external diameter to this ring flat-plate is set,Make this external diameter in the position more in the inner part of the outside end face than flange part, and, to the internal diameter of this ring flat-plateSize set, make this internal diameter in the bobbin than being fixed in the multiple prominent utmost point portion of stator corePosition more in the outer part. In addition, comparatively it is desirable to, peel off and prevent from being formed as being positioned at by projection comparing flange partPosition more in the inner part of outside end face, and be positioned at than the coiling of being fixed in the multiple prominent utmost point portion of stator corePipe position more in the outer part. In addition, can adopt following structure: peel off prevent by projection be and flange part oneForm and from flange part towards a side-prominent projection, peel off and prevent that member is by thermal weld or ultrasonic bondingPrevent from using projection and be fixed on to peel off.
In the present invention, peel off anti-stop and also can comprise that multiple peeling off prevents from preventing structure with projection and multiple peeling offPart. In this case, both can make to peel off and prevent from preventing that the quantity of member is identical by the quantity of projection with peeling off,And peel off and prevent from, with fixing or be formed with one and peel off and prevent member respectively in projection, also can making stripping at eachFewer than peeling off the quantity preventing by projection from the quantity that prevents member, and peel off and prevent with in projection at severalFixing or be formed with one and peel off and prevent member. In this case too, comparatively it is desirable to, peel off anti-Only be formed as being positioned at than the outside end face of flange part position more in the inner part by projection, and be positioned at than being fixed on calmlyBobbin in the unshakable in one's determination multiple prominent utmost point portion of son position more in the outer part.
In addition, for solving above-mentioned the second technical problem, the feature of pump installation of the present invention is to comprise: impeller;Rotor is installed impeller on this rotor; Stator, this stator arrangement is in the outer circumferential side of rotor; Pump chamber, at thisIn pump chamber, dispose impeller and rotor, and fluid flows through this pump chamber; Between wall member, between this wall member hasWall, this partition is disposed between stator and pump chamber to prevent that the fluid in pump chamber from flowing into the configuration position of stator;And resinous resin component element, this resin component element forms in the mode that stator is covered, and partition is formed as bandFlange roughly have a round-ended cylinder shape, there is bottom, cylindrical portion and flange part, when by the axial direction of cylindrical portionDispose a side of bottom while being made as a side, resin component element is with by bottom and cylindrical portion covers and by flange partMode in the surface coverage of a side forms, and disposes to peel off to prevent with groove this stripping at the outer peripheral face of flange partFrom preventing preventing that with groove resin component element from peeling off from a wall member.
In the present invention, for example, when when observing with the axial orthogonal direction of cylindrical portion, peel off and prevent from usingGroove is with respect to the axioversion of cylindrical portion.
Solving in the pump installation of the present invention of above-mentioned the second technical problem, on the outer peripheral face of cylindrical portion, formPeel off and prevent with groove, this is peeled off and prevents from preventing that with groove resin component element from peeling off from a wall member. Therefore, can beOn the circumferencial direction of cylindrical portion in a big way in form to peel off and prevent with groove, in addition, can also be in cylindrical portionInterior formation in a big way is axially peeled off and is prevented from using groove. Therefore, when the peeling force of resin component element is towards resinDirection that member is peeled off from a wall member, an axial side of cylindrical portion is done the used time, can increase resin component element phaseFor peeling off the hook amount preventing with groove. Consequently, in the present invention, can improve to resin component element fromWall member is peeled off the restraint suppressing.
In the present invention, comparatively it is desirable to, peel off and prevent from using the axially orthogonal of groove and cylindrical portion. Concrete andSpeech, peels off and prevents from being formed on cylindrical portion with groove in 45 ° of axioversions with respect to cylindrical portion modes aboveOn outer peripheral face, when when observing with the axial orthogonal direction of cylindrical portion, be formed with multiple peeling off and prevent from using groove.In the time of such formation, can effectively bear towards resin component element from a wall member with peeling off the side preventing with grooveThe direction of peeling off is the peeling force of the resin component element of an axial side effect of cylindrical portion. Therefore, can effectively carryThe high restraint suppressing that resin component element is peeled off from a wall member.
In the present invention, comparatively it is desirable to, stator comprises driving uses coil and stator core, wherein,In stator core, be formed with multiple prominent utmost point portion, in this multiple prominent utmost point portion, be wound with driving coil, at cylinderOn the outer peripheral face of portion with the axially parallel of cylindrical portion be formed with multiple rotations and prevent that, with groove, these multiple rotations are anti-Only be used for preventing that with groove stator core from, with respect to a wall member rotation, preventing with disposing the prominent utmost point in groove in rotationThe front of portion, peels off and prevents from being formed at protuberance with groove, and this protuberance is disposed at multiple rotations and prevents with between groove.In this case, comparatively it is desirable to, peel off and prevent from the circumferencial direction of cylindrical portion, being formed on protuberance with grooveWhole region in, peel off the two ends that prevent with groove and prevent from being communicated with groove with rotation. Comparatively it is desirable to strippingFrom preventing becoming two ends and rotation prevents the groove of the chamfered groove shape being communicated with groove by flute profile. In the time of such formation, energyJust so utilize to be disposed at multiple rotations and to prevent from forming to peel off with the protuberance between groove preventing use groove, in addition,In the case of fix after stator between form resin component element by carrying out injection moulding on wall member, whenWhile carrying out injection moulding, easily make resin material prevent from roundaboutly with groove preventing from using groove to peeling off via rotationIn, and easily make resin material enter to peel off to prevent from using groove. Therefore, when the peeling force of resin component element is towards treeWhen directive effect that fat member is peeled off from a wall member, can further increase resin component element and prevent with respect to peeling offBy the hook amount of groove, resin component element is peeled off to the inhibition suppressing from a wall member thereby can effectively improvePower.
As mentioned above, solving in the pump installation of the present invention of above-mentioned the first technical problem, can effectively preventFluid immerses stator being covered by resin component element etc.
In addition, solving in the pump installation of the present invention of above-mentioned the second technical problem, can improve resin component elementPeel off the restraint suppressing from a wall member.
Brief description of the drawings
Fig. 1 is the cutaway view of the pump installation of embodiment of the present invention.
Fig. 2 is the upward view that the stator shown in Fig. 1 is fixed on the state of a wall member.
Fig. 3 wall member between lower face side is illustrated in shown in Fig. 1 is fixed with peels off the shape that prevents memberThe stereogram of state.
Fig. 4 is fixed with the side-looking of peeling off the state that prevents member on wall member between being illustrated in shown in Fig. 1Figure.
Fig. 5 represents wall member between shown in Fig. 3 and peels off to prevent that the decomposition of the state after member decomposes is verticalBody figure.
(symbol description)
1 pump installation
2 impellers
4 rotors
5 stators
9 pump chambers
11 wall members
11a partition
11b cylindrical portion
11c bottom
11d flange part
11g rotation prevents from using groove
11h protuberance
11j peels off and prevents from using groove
11m peels off and prevents from using projection
12 resin component elements
23 driving coils
24 stator cores
The prominent utmost point of 24b portion
31 peel off anti-stop
32 peel off and prevent member
S gap
Detailed description of the invention
Below, with reference to accompanying drawing, embodiments of the present invention are described.
(schematic construction of pump installation)
Fig. 1 is the cutaway view of the pump installation 1 of embodiment of the present invention. Fig. 2 is the stator 5 shown in Fig. 1Be fixed on the upward view of the state of a wall member 11. In the following description, by the upside of Fig. 1 (Z1 direction side)Be made as " on " side, the downside of Fig. 1 (Z2 direction side) is made as to D score side.
The pump installation 1 of present embodiment is the pump that is called as canned pump formula, comprises impeller 2 and makes this impeller 2The DC Brushless Motor 3 (hereinafter referred to as " motor 3 ") of rotation. Motor 3 is by rotor 4 and stator 5Form. Impeller 2 and motor 3 are disposed at upper shell 7 structures that cover by shell 6 with by the top of shell 6The inside of the housing becoming. Shell 6 and upper shell 7 are fixed to one another by screw 8.
On upper shell 7, be formed with the sucting 7a of fluid and the discharge portion 7b of fluid. Shell 6 with onBetween housing 7, be formed with pump chamber 9, the fluid sucking from sucting 7a passes through pump chamber 9 towards discharge portion 7bFlow. In addition, the bonding part between shell 6 and upper shell 7 disposes for guaranteeing the close of pump chamber 9The containment member (O shape ring) 10 of envelope property.
Shell 6 comprises a wall member 11 and resinous resin component element 12, wherein, and above-mentioned wall member 11Have partition 11a, this partition 11a is disposed at pump chamber 9 with fixed in the mode that pump chamber 9 and stator 5 are separatedBetween son 5, above-mentioned resin component element 12 covers the lower surface of a wall member 11 and side. Below to shell6 detailed structure describes.
Rotor 4 comprises: drive with magnet 14, sleeve cylindraceous 15, use magnet 14 and sleeve to driving15 retaining members that keep 16. Retaining member 16 is formed as flanged roughly cylindric. Drive and useMagnet 14 is fixed on the outer circumferential side of retaining member 16, and sleeve 15 is fixed on the inner circumferential side of retaining member 16.On the flange part 16a of retaining member 16 that is disposed at upside, be fixed with impeller 2. Impeller 2 and rotor 4Be disposed at the inside of pump chamber 9.
Rotor 4 axle 17 that is fixed is supported to and can rotates. Fixed axis 17 is using above-below direction as axially configuration., above-below direction is the axial of rotor 4. The upper end of fixed axis 17 is held in upper shell 7, fixed axis 17Lower end be held in shell 6. Fixed axis 17 inserts the inner circumferential side of sleeve 15. In addition, at fixed axis 17Above to clamp along the vertical direction the mode of sleeve 15, two thrust bearing members 18 are installed. In this enforcement sideIn formula, sleeve 15 works as the radial bearing of rotor 4, and sleeve 15 and thrust bearing member 18 are doneFor the thrust bearing of rotor 4 works.
Stator 5 comprises driving uses coil 23, stator core 24 and bobbin 25, and entirety is formed as roughly justifyingTubular. Stator 5 is disposed at the outer circumferential side of rotor 4 across aftermentioned partition 11a. Below, by rotor 4 and fixedSon 5 be radially made as " radially ", is made as " circumferencial direction " by the circumferencial direction of rotor 4 and stator 5.
Stator core 24 is the stacked and laminate cores that form of the thin magnetic sheet that is made up of magnetic material. AsShown in Fig. 2, this stator core 24 comprises: the roughly circular circle that forms the outer peripheral face of stator core 24Ring portion 24a; And the multiple prominent utmost point 24b of portion giving prominence to from the 24a of annulus portion towards radially inner side. Multiple prominent utmost point portion24b forms with equal angles spacing. Bobbin 25 is formed by insulating properties materials such as resins. In addition, bobbin25 are formed as flanged cylindricly, have flange part at two ends.
Drive the outer peripheral face that is wound in bobbin 25 with coil 23. Drive the both ends winding with coil 23In terminal pins 26, this terminal pins 26 is fixed on the flange part of bobbin 25b. Be wound with and drive with coil 23Bobbin 25 insert the prominent utmost point 24b of portion from radially inner side, thereby be fixed on stator core 24. , prominentThe 24b of utmost point portion is upper to be wound with and to drive with coil 23 across bobbin 25.
(structure of shell)
Fig. 3 wall member 11 between lower face side is illustrated in shown in Fig. 1 is fixed with to peel off and prevents memberThe stereogram of 32 state. Fig. 4 is fixed with to peel off on wall member 11 between being illustrated in shown in Fig. 1 and preventsThe side view of the state of member 32. Fig. 5 represents wall member between shown in Fig. 3 11 and peels off to prevent structureThe exploded perspective view of the state after part 32 decomposes.
As mentioned above, a wall member 11 comprises partition 11a. Partition 11a is formed as flangedly roughly havingRound-ended cylinder shape, comprises cylindrical portion 11b, bottom 11c and flange part 11d. Cylindrical portion 11b is formed as cylinderShape, and be configured to drive the outer peripheral face with magnet 14 to cover. In addition, cylindrical portion 11b is configured toIt is axially roughly consistent with above-below direction. Bottom 11c is formed as the plectane that the lower end of cylindrical portion 11b is stopped upShape. Flange part 11d expands towards outside radially from the upper end as open side end of cylindrical portion 11b.As shown in Figure 1, the inner side of partition 11a and upside are pump chamber 9, and impeller 2 and rotor 4 are disposed at partition 11aInner side and upside. Partition 11a has played the fluid that prevents in pump chamber 9 and has flowed into the configuration position of stator 5Function.
As shown in Figure 1, be fixed with the empty along the vertical direction state of opening specified gap at the downside of bottom 11cTwo substrates 27,28. Be formed with for substrate 27 is fixed on to a wall member at the lower surface of bottom 11c11 fixing with projection 11e with for the location that substrate 27 is positioned projection 11f. As Fig. 1 instituteShow, substrate 27 is threaded into fixing under the state being fixed with projection 11e and projection 11f location, locationBe fixed on the lower face side of bottom 11c with the screw 29 of projection 11e. In addition, substrate 28 is in the use that is fixedProjection 11e and location with projection 11f locate after state under by the bonding following table that is fixed on base plate 11cFace.
Be formed with multiple rotations at the outer peripheral face of cylindrical portion 11b and prevent from using groove 11g, these multiple rotations prevent from usingGroove 11g is used for preventing that stator core 24 from rotating with respect to a wall member 11. Rotation prevents with groove 11g and upperLower direction forms abreast. In addition, rotation prevents from being formed as chamfered groove shape with groove 11g, and on above-below directionBe formed in the roughly whole region except a part for upper end side of cylindrical portion 11. In addition, multipleRotation prevents from forming with equal angles spacing with groove 11g. As shown in Figure 2, prevent with joining in groove 11g in rotationThe front that is equipped with the prominent utmost point 24b of portion, this prominent utmost point 24b of portion is disposed at the radially inner side of stator core 24. ByPrevent from using groove 11g in be formed with rotation at the outer peripheral face of cylindrical portion 11, therefore prevent from using groove in multiple rotationsBetween 11g, be formed with protuberance 11h. As shown in Figure 2, at the flange that is disposed at radially inner side of bobbin 25Between the outer peripheral face of the 25a of portion and protuberance 11h, be formed with gap.
Be formed with multiple peeling off at the outer peripheral face of protuberance 11h and prevent from using groove 11j, this multiple peeling off prevents from using groove11j prevents that resin component element 12 from peeling off from a wall member 11. Peel off and prevent from being formed as chamfered groove shape with groove 11j.In addition, when when observing with the orthogonal direction of above-below direction, peel off and prevent with groove 11j with respect to above-below directionTilt. In the present embodiment, peel off prevent with groove 11j and above-below direction roughly orthogonal, in level sideUpwards form. Also can spiral-shaped groove be set continuously at each protuberance 11h, thereby form with respect to up and downPeeling off that direction tilts prevents from using groove 11j. In addition, need to peel off to prevent from being formed as having with groove 11j peeling offPrevent the size of effect, but multiple groove is set on above-below direction in the situation that, can adopt less chamfered groove,In addition, if the snap-latch surface that along continuous straight runs is formed forms greatlyr, can reduce the groove on above-below directionQuantity. In the present embodiment, peel off and prevent from forming with constant spacing on above-below direction with groove 11j,And in the roughly whole region except a part for upper end side of protuberance 11h, be formed with multiple peel off anti-Only use groove 11j. In addition, peel off and prevent from a protuberance 11h, being along the circumferential direction formed on protruding with groove 11jIn the whole region of the 11h of portion, peel off the two ends that prevent with groove 11j and prevent from being communicated with groove 11g with rotation. ?The lower end side of several protuberances 11h (being three protuberance 11h in the example shown in Fig. 3 waits) is formed with breachThe 11k of portion, this notch part 11k drives the magnetic pole of permanent magnet 14 outer peripheral faces to detect for configuring to being formed atMagnetic Sensor (omit diagram).
Dispose and peel off anti-stop 31 at the downside of flange part 11d, this peels off anti-stop 31 for preventing treeFat member 12 is peeled off from a wall member 11. Peel off anti-stop 31 by multiple peel off prevent with projection 11m andPeel off and prevent that member 32 forms, wherein, above-mentioned multiple peeling off prevents with projection 11m from flange part 11d'sLower surface is outstanding down, and above-mentioned peeling off prevents that member 32 is fixed on to peel off and prevent from using projection 11m.
Peel off and prevent with projection 11m by giving prominence to towards flange part 11d form as one and form with the levelCylindric, and be disposed at the lower surface of flange part 11d with the spacing of 90 ° roughly. This is peeled off and prevents from using projectionBe formed as being positioned at than the outside end face of flange part 11d position more in the inner part, and be positioned at than being fixed on stator ironBobbin 25 on the prominent utmost point 24b of portion of the heart 24 position more in the outer part. Peel off and prevent that member 32 from being to formFor tabular and be formed as a circular ring flat-plate. This size of peeling off the external diameter that prevents member 32 is enteredRow is set, and makes this external diameter in the position more in the inner part of the outside end face than flange part 11d, and, rightThis size of peeling off the internal diameter that prevents member 32 is set, and makes this internal diameter in than being fixed on stator ironBobbin 25 on the prominent utmost point 24b of portion of the heart 24 position more in the outer part, specifically in preventing structure than peeling offPart 32 configures the position more in the outer part of flange part 25a in the outside of the bobbin 25 of side, and this is peeled off and prevents structurePart 32 is fixed on and peels off the lower end side preventing with projection 11m to surround the mode of cylindrical portion 11b upper end side.In addition, peel off and prevent that member 32 from preventing with prominent to be fixed on to peel off with the mode of flange part 11d almost parallelPlay the lower end side of 11m, at flange part 11d and peel off and prevent from being formed with between member 32 gap S. In this realityExecute in mode, for example, peel off prevent member 32 by thermal weld or ultrasonic bonding be fixed on peel off anti-Only use the lower end side of projection 11m. Peel off and prevent that member 32 also can be fixed on by screw, bonding agent etc.Peel off the lower end side preventing with projection 11m.
Resin component element 12 covers drive with coil 23 and substrate 27,28 etc. completely, and it is to drive for protectionWith coil 23 and substrate 27,28 etc. in order to avoid be subject to the impact of fluid and establish. This resin component element 12 is logicalCross by resin material be injected to state in being fixed with stator 5 and substrate 27,28 between wall member 11 andForm. Particularly, by by be fixed with stator 5 and substrate 27,28 between wall member 11 be disposed atIn mould, and resin material injected in this mould and make this resin material sclerosis, thereby forming resin component element12. , resin component element 12 and be fixed with stator 5 and substrate 27,28 after between wall member 11 oneMoulding.
The resin component element 12 of present embodiment is formed as roughly there is round-ended cylinder shape on the whole, by stator 5 HesSubstrate 27,28 covers completely. In addition, resin component element 12 covers cylindrical portion 11b and bottom 11c completely,And cover the lower surface of flange part 11. Now, prevent from being positioned at than flange part 11d's by projection owing to peeling offOutside end face position more in the inner part, and the size of peeling off the external diameter that prevents member 32 is set, makeMust this external diameter in the position more in the inner part of the outside end face than flange part 11d, therefore peel off and prevent member 32Covered completely by resin component element 12. A part for resin component element 12 is filled in flange part 11d and peels off anti-Only, in the gap S between member 32, a part for resin component element 12 is disposed in the S of gap. In addition, existWhen resin component element 12 is carried out to injection moulding, resin material travels back across the flange part 25a of the inner side of bobbin 25And in the gap between the outer peripheral face of protuberance 11h, and also enter to peel off and prevent with in groove 11j. , resinA part for member 12 is also disposed at the flange part 25a of inner side and the outer peripheral face of protuberance 11h of bobbin 25Between gap and peeling off prevent with in groove 11j. As shown in Figure 1, in the present embodiment, flange part 11dAnd the interface between resin component element 12 exposes at the outer peripheral face of pump installation 1.
(the main effect of present embodiment)
As mentioned above, in the present embodiment, dispose and peel off anti-stop 31 at the downside of flange part 11d,This is peeled off anti-stop 31 and peels off from a wall member 11 for preventing resin component element 12, peels off and prevents in formationResin component element 12 is disposed in peeling off in the gap that prevents from forming between member 32 and flange part 11d of portion 31A part. Therefore, in the present embodiment, be disposed at peeling off of flange part 11d downside and prevent member 32As preventing that the anchor log that resin component element 12 is peeled off from flange part 11d from working. Therefore, in this enforcement sideIn formula, can utilize and peel off anti-stop 31 and effectively prevent the lower surface stripping of resin component element 12 from flange part 11dFrom. Consequently, in the present embodiment, even if the boundary between flange part 11d and resin component element 12Face exposes at the outer peripheral face of pump installation 1, also can effectively prevent what fluid immersion from being covered by resin component element 12Stator 5 and substrate 27,28.
In the present embodiment, owing to being formed with resin component element 12 in the mode of complete covered substrate 27,28,Therefore substrate 27,28 has also played the function that prevents that resin component element 12 from peeling off from a wall member 11.
In the present embodiment, peel off that to prevent that member 32 is formed as circular, and to surround cylindrical portion 11bMode be fixed on multiple peeling off and prevent from using projection 11m. Therefore, for example, and prevent with prominent multiple peeling offPlaying each in 11m peels off and prevents from peeling off with being fixed with respectively one on projection 11m the situation that prevents memberRelatively, in the time of assemble pump device 1, peel off and prevent that member 32 from easily processing. In addition, can cut down pump installation 1Number of parts.
In addition, in the present embodiment, be formed with multiple peeling off at the outer peripheral face of protuberance 11h and prevent from using groove11j. Particularly, peel off prevent with groove 11j on above-below direction, be formed on protuberance 11h except upper endIn roughly whole region outside a part for side, and be formed in a circumferential direction the whole district of protuberance 11hIn territory. In addition, peeling off the part preventing with disposing resin component element 12 in groove 11j. Therefore, existIn present embodiment, when the peeling force of resin component element 12 is peeled off from a wall member 11 towards resin component element 12Direction do the used time in below, can increase resin component element 12 with respect to peeling off the hook amount preventing with groove 11j.Therefore, in the present embodiment, can improve resin component element 12 is peeled off and suppressed from a wall member 11Restraint.
Especially in the present embodiment, due to peel off prevent with groove 11j be formed as with above-below direction roughly justHand over, therefore can effectively bear towards resin component element 12 from partition structure with peeling off the side preventing with groove 11jThe peeling force of the resin component element 12 of the i.e. below effect of the direction that part 11 is peeled off. Therefore, in the present embodiment,Can effectively improve and resin component element 12 be peeled off to the restraint suppressing from a wall member 11.
In addition, in the present embodiment, peel off and prevent from being formed in a circumferential direction protuberance 11h with groove 11jWhole region in, peel off the two ends that prevent with groove 11j and prevent from being communicated with groove 11g with rotation. Therefore, whenWhen resin component element 12 is carried out to injection moulding, resin material easily prevents from rotating with groove 11g via rotationPrevent with in groove 11j to peeling off, thereby resin material easily enters to peel off and prevents with in groove 11g. Therefore,In the present embodiment, when the peeling force of resin component element 12 is shelled from a wall member 11 towards resin component element 12From direction do the used time in below, can further increase resin component element 12 with respect to peeling off and prevent from using groove 11jHook amount, consequently, can effectively improve resin component element 12 is peeled off and pressed down from a wall member 11The restraint of system.
(other embodiment)
Above-mentioned embodiment is the example in the preferred embodiment of the present invention, but the present invention is not limited toThis can carry out various distortion enforcement in the scope that does not change the technology of the present invention thought.
In the above-described embodiment, peel off and prevent that member 32 is fixed on to peel off and prevent from using projection 11m. Except thisOutside, for example, circular peeling off prevents that member 32 from also can prevent from being integrally formed with projection 11m with peeling off., peel off prevent member 32 also can and a wall member 11 be integrally formed.
In the above-described embodiment, peel off that to prevent that member 32 is formed as circular, and to surround cylindrical portion 11bMode be fixed on multiple peeling off and prevent from using projection 11m. , in the above-described embodiment, peel off anti-stop31 comprise peeling off for one and prevent member 32. In addition, for example, peel off anti-stop 31 and both can adopt oneThe structure that piece ring flat-plate is cut apart, also can comprise that multiple the peeling off of the plate that uses polylith rectilinear form prevents member.
In this case, also can make to peel off prevent with the quantity of projection 11m with peel off the quantity phase that prevents memberWith, and peel off and prevent from peeling off and preventing member with fixing respectively one on projection 11m at each. In addition, alsoCircular pad can be fixed on to each peels off and prevents from preventing member with projection 11m is upper as peeling off. SeparatelyOutward, also can make to peel off and prevent from preventing that the quantity of member is identical by the quantity of projection 11m with peeling off, and at eachIndividual peeling off prevents from peeling off and preventing member with being formed with one on projection 11m. In this case, for example,Utilization is peeled off and is prevented from projection 11m and peel off preventing that member from forming mushroom jut.
In addition, comprising multiple peeling off prevent member in the situation that peeling off anti-stop 31, can be also to peel offThe quantity that prevents member is fewer than peeling off the quantity preventing with projection 11m, peels off and prevents from using projection at several11m is upper fixing or be integrally formed one and peel off and prevent member.
In addition, in the above-described embodiment, peel off prevent from being formed as with above-below direction with groove 11j roughly orthogonal,Prevent from also can being formed as mentioned above when phase when observing with the orthogonal direction of above-below direction with groove 11j but peel offTilt for above-below direction. For example, prevent from using groove 11j if peel off when observing with the orthogonal direction of above-below directionTilt more than 45 ° with respect to above-below direction, can make to peel off and prevent that having enough peeling off with groove 11j preventsEffect. In addition, in the above-described embodiment, peel off and prevent from being formed as the rectangular chamfered groove in cross section with groove 11jShape, but on above-below direction, form multiple peeling off the in the situation that of preventing with groove 11j, even if adopt cross section to beThe groove of leg-of-mutton groove or cross section semicircular in shape, also can have the effect of preventing of peeling off.
In the above-described embodiment, peel off and prevent from being formed in a circumferential direction the whole of protuberance 11h with groove 11jIn individual region, peel off the two ends that prevent with groove 11j and prevent from being communicated with groove 11g with rotation. In addition, exampleAs, peel off and prevent from also can being formed in a circumferential direction in a part of protuberance 11h with groove 11j. In these feelingsUnder condition, also can only make to peel off the one end preventing with groove 11j and prevent from being communicated with groove 11g with rotation, and make to peel offPrevent from preventing from not being communicated with groove 11g with rotation with the other end of groove 11j. In addition, in this case, also canMaking to peel off the two ends that prevent with groove 11j all prevents from not being communicated with groove 11g with rotation.
In the above-described embodiment, peel off and prevent from above-below direction, being formed on removing of protuberance 11h with groove 11jIn roughly whole region outside a part for upper end side. In addition, for example, peel off and prevent from using groove 11jBoth can on above-below direction, be formed in the whole region of protuberance 11h, also can on above-below direction, be formed on protrudingIn a part of the 11h of portion. In addition, in the above-described embodiment, peel off and prevent with groove 11j at above-below directionUpper with constant spacing formation, prevent that the interval on above-below direction can be also not advise with groove 11j but peel off.
In the above-described embodiment, on protuberance 11h, be formed with multiple peeling off and prevent from using groove 11j, if but establishPeel off and prevent member 32, also can on protuberance 11h, not form to peel off and prevent from using groove 11j. Even at thisIn situation, also can by setting peel off prevent member 32 effectively prevent fluid immerse covered by resin component element 12Stator 5 and the substrate 27,28 of lid.
In the above-described embodiment, dispose and peel off anti-stop 31 at the downside of flange part 11d, if butOn protuberance 11h, be formed with multiple peeling off and prevent from using groove 11j, also can not configure at the downside of flange part 11dPeel off anti-stop 31. Even if in this case, also can improve resin component element 12 is peeled off from a wall member 11The restraint suppressing.
Claims (17)
1. a pump installation, is characterized in that, comprising:
Impeller;
Rotor is installed described impeller on this rotor;
Stator, this stator arrangement is in the outer circumferential side of described rotor;
Pump chamber, dispose described impeller and described rotor, and fluid flows through this pump chamber in this pump chamber;
Between wall member, this wall member has partition, this partition is disposed between described stator and described pump chamberTo prevent that the fluid in described pump chamber from flowing into the configuration position of described stator; And
Resinous resin component element, this resin component element forms in the mode that described stator is covered,
Described partition is formed as flanged round-ended cylinder shape that has, and has bottom, cylindrical portion and flange part,
Described flange part expands towards the radial outside of described cylindrical portion with the open side end from described cylindrical portionMode form,
In the time that the side that disposes described bottom in the axial direction of described cylindrical portion is made as to a side,
Described resin component element with described bottom and described cylindrical portion are covered and by described flange part describedThe mode of the surface coverage of one side forms,
Dispose and peel off anti-stop in a described side of described flange part, this is peeled off anti-stop and prevents described resinMember is peeled off from wall member between described,
Describedly peel off anti-stop and comprise: prevent from described flange part towards described side-prominent peeling off by projection;And form or be fixed on described in peel off and prevent from preventing member with peeling off of projection,
Described flange part and described in peel off and prevent from being formed with between member gap,
In described gap, dispose a part for described resin component element.
2. pump installation as claimed in claim 1, is characterized in that,
Describedly peel off anti-stop and comprise described in multiple and peel off and prevent by projection,
Describedly peel off that to prevent that member is formed as circular, and be fixed on many in the mode that described cylindrical portion is surroundedDescribed in individual, peel off and prevent from using projection.
3. pump installation as claimed in claim 2, is characterized in that,
Described stator has stator core, is formed with multiple prominent utmost point portion in this stator core, multiple prominent at thisIn utmost point portion, be wound with driving coil across bobbin,
Described peeling off prevents that member from being to be formed as a circular ring flat-plate, and the size of the external diameter to this ring flat-plate is enteredRow is set, and makes this external diameter in the position more in the inner part of the outside end face than described flange part, and, rightThe size of the internal diameter of this ring flat-plate is set, and makes this internal diameter in than being fixed on the multiple of described stator coreDescribed bobbin in described prominent utmost point portion position more in the outer part.
4. pump installation as claimed in claim 2, is characterized in that,
Described stator has stator core, is formed with multiple prominent utmost point portion in this stator core, multiple prominent at thisIn utmost point portion, be wound with driving coil across bobbin,
Described peeling off prevents from being positioned at than the outside end face of described flange part position more in the inner part by projection, and positionIn than being fixed on described bobbin in the multiple described prominent utmost point portion of described stator core position more in the outer part.
5. pump installation as claimed in claim 4, is characterized in that,
Described peeling off prevents by projection it being to be integrally formed with described flange part and from described flange part towards describedOne side-prominent projection,
Described peeling off prevents that member from peeling off described in being fixed on by thermal weld or ultrasonic bonding and prevents with prominentRise.
6. pump installation as claimed in claim 1, is characterized in that,
Described peel off anti-stop comprise peel off described in multiple prevent with projection and multiple described in peel off and prevent member.
7. pump installation as claimed in claim 6, is characterized in that,
Described peeling off prevents that member from being board member,
Described stator has stator core, is formed with multiple prominent utmost point portion in this stator core, multiple prominent at thisIn utmost point portion, be wound with driving coil across bobbin,
Described peeling off prevents from being positioned at than the outside end face of described flange part position more in the inner part by projection, and positionIn than being fixed on described bobbin in the multiple described prominent utmost point portion of described stator core position more in the outer part.
8. pump installation as claimed in claim 7, is characterized in that,
Described peeling off prevents by projection it being to be integrally formed with described flange part and from described flange part towards describedOne side-prominent projection,
Described peeling off prevents that member from peeling off described in being fixed on by thermal weld or ultrasonic bonding and prevents with prominentRise.
9. the pump installation as described in any one in claim 1 to 8, is characterized in that,
Described resin component element is to be fixed with between described stator described wall member resin by injection material also by courtThis hardening of resin is formed.
10. a pump installation, is characterized in that, comprising:
Impeller;
Rotor is installed described impeller on this rotor;
Stator, this stator arrangement is in the outer circumferential side of described rotor;
Pump chamber, dispose described impeller and described rotor, and fluid flows through this pump chamber in this pump chamber;
Between wall member, this wall member has partition, this partition is disposed between described stator and described pump chamberTo prevent that the fluid in described pump chamber from flowing into the configuration position of described stator; And
Resinous resin component element, this resin component element forms in the mode that described stator is covered,
Described partition is formed as flanged round-ended cylinder shape that has, and has bottom, cylindrical portion and flange part,
In the time that the side that disposes described bottom in the axial direction of described cylindrical portion is made as to a side,
Described resin component element with described bottom and described cylindrical portion are covered and by described flange part describedThe mode of the surface coverage of one side forms,
On the outer peripheral face of described cylindrical portion, dispose to peel off and prevent with groove, described in this is peeled off and prevents from preventing with grooveResin component element is peeled off from wall member between described.
11. pump installations as claimed in claim 10, is characterized in that,
When observing with the axial orthogonal direction of described cylindrical portion, described in peel off and prevent with groove with respect to instituteState the axioversion of cylindrical portion.
12. pump installations as claimed in claim 11, is characterized in that,
Described peeling off prevents from using the axially orthogonal of groove and described cylindrical portion.
13. pump installations as claimed in claim 11, is characterized in that,
Described peeling off prevents from forming in 45 ° of above modes of the axioversion with respect to described cylindrical portion with grooveOn the outer peripheral face of described cylindrical portion, when when observing with the axial orthogonal direction of described cylindrical portion, formHave described in multiple and peel off and prevent from using groove.
14. pump installations as claimed in claim 10, is characterized in that,
Described stator comprises driving uses coil and stator core, wherein, is formed with many in described stator coreIndividual prominent utmost point portion is wound with described driving coil in this multiple prominent utmost point portion,
On the outer peripheral face of described cylindrical portion with the axially parallel of described cylindrical portion to be formed with multiple rotations anti-Only, with groove, these multiple rotations prevent from revolving with respect to wall member between described for preventing described stator core with grooveTurn,
Prevent by the front that disposes described prominent utmost point portion in groove in described rotation,
Described peeling off prevents from being formed at protuberance with groove, this protuberance be disposed at multiple described rotations prevent with groove itBetween.
15. pump installations as claimed in claim 14, is characterized in that,
The described whole district that prevents from being formed on the circumferencial direction of described cylindrical portion with groove described protuberance of peeling offIn territory, described in peel off the two ends that prevent with groove and prevent from being communicated with groove with described rotation.
16. pump installations as claimed in claim 14, is characterized in that,
Described peel off prevent with groove be the groove that two ends and described rotation prevent the chamfered groove shape being communicated with groove.
17. pump installations as described in any one in claim 10 to 16, is characterized in that,
Described resin component element is to be fixed with between described stator described wall member resin by injection material also by courtThis hardening of resin is formed.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-241714 | 2010-10-28 | ||
| JP2010-241715 | 2010-10-28 | ||
| JP2010241715A JP5663265B2 (en) | 2010-10-28 | 2010-10-28 | Pump device |
| JP2010241714A JP5641874B2 (en) | 2010-10-28 | 2010-10-28 | Pump device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102465887A CN102465887A (en) | 2012-05-23 |
| CN102465887B true CN102465887B (en) | 2016-05-18 |
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ID=46069891
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110321428.2A Expired - Fee Related CN102465887B (en) | 2010-10-28 | 2011-10-12 | Pump installation |
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| Country | Link |
|---|---|
| CN (1) | CN102465887B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014118900A (en) * | 2012-12-18 | 2014-06-30 | Nidec Sankyo Corp | Pump device |
| DE102019115774A1 (en) * | 2019-06-11 | 2020-12-17 | HELLA GmbH & Co. KGaA | Pump, in particular pump for a fluid circuit in a vehicle, with a rim of an impeller, immersed in a housing |
| JP7397258B2 (en) * | 2020-08-07 | 2023-12-13 | 日立Astemo株式会社 | two stage centrifugal pump |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3859008A (en) * | 1971-07-06 | 1975-01-07 | Andritz Ag Maschf | Pump with offset inflow and discharge chambers |
| CN2711418Y (en) * | 2004-07-05 | 2005-07-20 | 薛肇江 | Electric fuel combustion double-groove vane pump |
| CN101619724A (en) * | 2008-06-30 | 2010-01-06 | 日本电产三协株式会社 | Pump apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4285519B2 (en) * | 2006-09-19 | 2009-06-24 | パナソニック電工株式会社 | pump |
| JP2009074468A (en) * | 2007-09-21 | 2009-04-09 | Panasonic Electric Works Co Ltd | Pump |
-
2011
- 2011-10-12 CN CN201110321428.2A patent/CN102465887B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3859008A (en) * | 1971-07-06 | 1975-01-07 | Andritz Ag Maschf | Pump with offset inflow and discharge chambers |
| CN2711418Y (en) * | 2004-07-05 | 2005-07-20 | 薛肇江 | Electric fuel combustion double-groove vane pump |
| CN101619724A (en) * | 2008-06-30 | 2010-01-06 | 日本电产三协株式会社 | Pump apparatus |
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| Publication number | Publication date |
|---|---|
| CN102465887A (en) | 2012-05-23 |
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