CN103505166B - Auxiliary injection unit for dish-washing machine - Google Patents

Auxiliary injection unit for dish-washing machine Download PDF

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Publication number
CN103505166B
CN103505166B CN201310188796.3A CN201310188796A CN103505166B CN 103505166 B CN103505166 B CN 103505166B CN 201310188796 A CN201310188796 A CN 201310188796A CN 103505166 B CN103505166 B CN 103505166B
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CN
China
Prior art keywords
pivot center
profile
propulsion
dish
injection unit
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CN201310188796.3A
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CN103505166A (en
Inventor
奥尔多·弗马加里
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Candy SpA
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Candy SpA
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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00Washing or rinsing machines for crockery or tableware
    • A47L15/14Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
    • A47L15/18Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with movably-mounted spraying devices
    • A47L15/22Rotary spraying devices
    • A47L15/23Rotary spraying devices moved by means of the sprays
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00Washing or rinsing machines for crockery or tableware
    • A47L15/42Details
    • A47L15/4278Nozzles

Abstract

A kind of auxiliary injection unit, it includes:Mounting structure(2), it is used to be possible to surround axis(X)The device of rotation is fastened to the purge chamber of dish-washing machine, mounting structure(2)Including filter washing water inlet portion(4);Multiple washer jets(5), itself and inlet portion(4)It is in fluid communication, washer jet(5)It is designed to along with following components(L1)Direction(L)Trandfer fluid:The component(L1)Parallel to axis(X)And more than other components;With multiple propulsion nozzles(6), itself and inlet portion(4)It is in fluid communication, propulsion nozzle(6)It is designed to along with perpendicular to axis(X)Component(P1)Direction(P)Trandfer fluid, and propulsion nozzle(6)Compare washer jet(5)Away from the axis, propulsion nozzle(6)It is located in corresponding inclination rounded end(7).

Description

Auxiliary injection unit for dish-washing machine
Technical field
The present invention relates to for dish-washing machine, the auxiliary injection unit particularly for domestic bowl-washing.
Background technology
Dish-washing machine includes purge chamber, and purge chamber generally comprises two tableware baskets being stacked on one another.One or two injection dress Put using cleaning fluid injection tableware basket so as to spray tableware, injection apparatus, which is usually provided with, can surround single pivot axis Two arms and be configured with multiple delivery nozzles(delivery nozzle).Injection apparatus is made into coming by cleaning fluid itself Rotate, angular momentum is transferred to two arms by cleaning fluid due to leaving nozzle, hence in so that two upper-arm circumferences are around pivot axis.
Some dish-washing machines utilize auxiliary injection unit, in other words, utilize the dress that supplementary function is played to foregoing main injection apparatus Put.The auxiliary injection unit is generally positioned in purge chamber below the basket for being intended to keep cooking ware as follows:It is larger The vessel or tableware of size can be exposed to cleaning fluid in the way of more concentrating.
Also the auxiliary injection unit with delivery nozzles is typically smaller than main injection apparatus, for no other reason than that auxiliary injection unit must The part for acting on tableware basket must be concentrated.The flow velocity of auxiliary injection unit is less than the flow velocity of main injection apparatus, in other words, per single The amount for the cleaning fluid that the position time is conveyed by auxiliary injection unit is less than the cleaning fluid that time per unit is conveyed by main injection apparatus Amount.
Auxiliary injection unit is also rotated(Generally surround the pivot axis different from the pivot center of main injection apparatus), And they are made into rotating by cleaning fluid itself as the situation of main injection, and cleaning fluid transmits angle due to leaving nozzle Momentum, this causes auxiliary ejector to rotate.The angular momentum is significantly less than the angular momentum produced by main ejector, according to first approximation It is considered that the flow velocity of cleaning fluid of the angular momentum to being supplied by injector is proportional.
Especially, the angular momentum produced by the jet of the cleaning fluid for the nozzle for leaving auxiliary injection unit have to be larger than device Mechanical friction between pivot center, and the aerodynamic drag run into during turning more than injector.
It should be noted that the intensity of the aerodynamic drag be can not ignore, because auxiliary injection unit is rotated in following environment:The ring Border not only comprising air and also comprising the cleaning fluid fallen, in other words include by(Auxiliary ejector and main ejector)Nozzle is supplied Give and due to gravity towards purge chamber bottom fall after rise cleaning fluid.
Know from clear above, it is necessary to the design of the auxiliary injection unit for dish-washing machine is focused particularly on, so as to true Protect the correct operation of auxiliary injection unit.
The content of the invention
In this respect, the invention is intended to solve the problem of, is to provide a kind of auxiliary injection unit for dish-washing machine, even if Cleaning fluid transporting velocity is low, and the auxiliary injection unit can also provide complete function.
The problem is solved according to following one or more schemes.
A kind of auxiliary injection unit for dish-washing machine, it includes:Mounting structure, its be used for described device directly or The purge chamber of dish-washing machine is fastened to indirectly, and the mounting structure includes filter washing water inlet portion, and the injection apparatus is set The pivot axis by the mounting structure can be surrounded by counting into;Multiple washer jets, it is in fluid communication with the inlet portion, The washer jet is designed to along the conveying cleaning fluid in direction with following components:The component parallel is in the pivot center And more than other components;Multiple propulsion nozzles, it is in fluid communication with the inlet portion, and the propulsion nozzle is designed to along tool There is the direction conveying cleaning fluid of the component vertical with the pivot center, the propulsion nozzle is than the washer jet away from described Pivot center;The propulsion nozzle is located at corresponding inclination rounded end.
In another arrangement, the end has in the section intercepted along the plane for being roughly parallel to the pivot center There is the profile of substantially elliptical.
In another arrangement, described device includes central body, and the washer jet is located in the central body, the end It is connected to the terminal attachment of the central body.
In another arrangement, the central body has substantially leafy shape, and each leaf portion of the leafy shape includes being located at institute State the Part I at the position of mounting structure and form the Part II of the corresponding terminal attachment of the central body.
In another arrangement, the Part I of each leaf portion is interconnected.
In another arrangement, described device includes multiple connection profiles, and each connection profile is being connected to the of leaf portion Extend between the corresponding inclination rounded end of two parts and adjacent leaf portion.
In another arrangement, connection profile shape since the inclination rounded end continuously extends, and There is the extension of general curved in plan.
In another arrangement, the connection profile of general curved has the recess towards the central body.
In another arrangement, the connection profile is in the section intercepted along the plane for being roughly parallel to the pivot center There is the profile of substantially elliptical during middle observation.
In another arrangement, each connection profile is in the side slave phase opposite with the direction of propulsion of the corresponding propulsion nozzle The inclination rounded end answered starts extension.
In another arrangement, each propulsion nozzle is positioned in the groove of corresponding end.
In another arrangement, the propulsion nozzle is equal from a distance from the pivot center.
In another arrangement, the washer jet is positioned in from the pivot center different distance.
A kind of dish-washing machine, it includes purge chamber and at least one being positioned in the purge chamber according in such scheme Any one described in auxiliary injection unit.
Brief description of the drawings
The auxiliary injection unit for dish-washing machine proposed by the invention is more fully described by now with reference to accompanying drawing, it is attached Figure provides only for guiding and is non-limiting, wherein:
- Fig. 1 is the stereogram of the auxiliary injection unit according to the present invention;
- Fig. 2 is the plan of Fig. 1 device;
- Fig. 3 is the sectional view intercepted by plane III-III of Fig. 2 device;
- Fig. 4 is the sectional view intercepted by plane IV-IV of Fig. 2 device;
- Fig. 5 is the sectional view intercepted by plane V-V of Fig. 2 device.
Embodiment
Referring to the drawings, reference 1 represents the entirety of auxiliary injection unit manufactured according to the present invention.Device 1 includes using Mounting structure 2 in the purge chamber that device is either directly or indirectly fastened to dish-washing machine.Term " directly " and " indirectly " Mean respectively in hole that mounting structure can be mounted in purge chamber or flange, or mounting structure being capable of the company of being assemblied in Connect device, connector and then be mounted to is present in the hole of purge chamber or flange.Mounting structure 2 is used to allow device 1 clear Device for mechanical is fastened to the inside of purge chamber in chamber wash in the state of rotational axis x rotation.In the preferred reality of invention Apply in mode, mounting structure 2 includes at least one pair of the assembling tooth 3 for being intended to engage with the annular connecting portion of dish-washing machine(Fig. 4), so as to Allowing device 1(Around same axis X)Along the direction fixing device 1 parallel to rotational axis x in the state of rotation.
Mounting structure 2 also includes the inlet portion 4 of the cleaning fluid for being provided by dish-washing machine.In the preferred embodiment of invention In, inlet portion 4 is the sleeve with the axis of symmetry overlapped with rotational axis x(Fig. 3).
Device 1 includes the multiple washer jets 5 being in fluid communication with inlet portion 4 so that the cleaning liquid energy provided by dish-washing machine Get at up to these nozzles and the inside of purge chamber can be delivered to by these nozzles.Washer jet 5 is oriented to, when device 1 Cleaning fluid is mainly conveyed in the upward direction during in mode of operation.In other words, washer jet 5 be designed to along have parallel to The component L1 of pivot center direction L conveying cleaning fluids.Component L1 is more than other components(Fig. 4).Therefore, washer jet 5 exists The inside of cooking ware can be sprayed when using, includes a part and the bottom of vessel inner surface.
Device 1 also includes the multiple propulsion nozzles 6 being in fluid communication with inlet portion 4.These propulsion nozzles 6 and washer jet 5 Similar or identical, the difference between two kinds of nozzle is predominantly or entirely difference functionally in itself.Promote spray The major function of mouth 6 is to produce that device 1 can be made to surround the power that rotational axis x is rotated.In order to realize the function, propulsion nozzle 6 Use the cleaning fluid identical cleaning fluid used with washer jet 5.Especially, propulsion nozzle 6 conveys cleaning fluid as follows: So that the component orthogonal of conveying direction is in rotational axis x and positioned at the plane for being also perpendicular to rotational axis x.In other words, push away Enter nozzle 6 to be designed to convey cleaning fluid along the direction P with the component P1 perpendicular to rotational axis x.Component P1 is preferably It is the identical order of magnitude more than other components, or at least with other components(Fig. 3 and Fig. 5).Therefore, when pressurized liquid is by pushing away When entering the conveying of nozzle 6, act in the power of device 1, cause the angular momentum around rotational axis x, this causes device to rotate.For Maximize the angular momentum, propulsion nozzle 6 is than washer jet 5 away from rotational axis x.It should be noted that the rotating speed of device 1 is at every point Clock 30 goes to 100 turns of scope, preferably in per minute about 50 scopes for going to about 60 turns.The typical sizes of device 1 are Make it possible to diameter in 10cm to 25cm scope, preferably about 15cm inscribed.
Propulsion nozzle 6 is located at corresponding inclination rounded end(bevelled and rounded end portion)7.Art Language " inclination fillet " means non-block shape, in other words, it is meant that without the flat wall for being vertically exposed to percussion flow Shape, and/or mean that surface is without obvious discontinuous suddenly upon deployment(Obvious sharp edge etc.)Shape.It is special Not, end 7 is along being roughly parallel in the section of plane interception of rotational axis x and conveying direction comprising nozzle 6 There is substantially elliptical during observation(Fig. 5)Profile.Therefore the form drag of end 7 is unlikely to the rotation of significantly hinder device 1. Because the viscosity of fluid causes when form drag is rotated by device, the fluid is by both air and the cleaning fluid fallen group Into in other words the cleaning fluid fallen is to be transported to after the purge chamber of dish-washing machine and fall after rise and hit cleaning on the device 1 Liquid.If fluid is without viscosity, streamline will be symmetrical on being flowed the main body hit, and by the upstream and downstream of main body (In other words between proparea and back zone, if it will flow the region hit and be considered as proparea)Produce identical speed and pressure .Because viscosity, fluid is due to making body rotation and off-energy, and this make it that streamline is separated, therefore forms recirculating zone, and backflow is drawn Play the resistance advanced to main body referred to as " form drag ".The inclination rounded shapes of end 7, particularly elliptical shape are reduced The separation of the streamline on end 7 is impinged upon, therefore limits form drag.As a result, compared with situation of the end 7 for blocks, Same rotational speed for device 1 needs less propulsive force.Because the propulsive force of propulsion nozzle is directly proportional to the flow velocity of nozzle, and And because the flow velocity of device 1 is generally limited, so aforementioned arrangements can provide performance optimal device 1.It should be noted that aerodynamic drag (Particularly form drag)There is most passive effect at the end 7 of carrying propulsion nozzle 6.Because these regions be from The farthest region of rotational axis x, therefore be the region that friction produces larger retarding moment.Preferably, each propulsion nozzle 6 is located at phase In the groove 7a for the inclination rounded end 7 answered.Groove 7a make it that the height that nozzle 6 is reached in the most thick position than end 7 is low Highly place faces external environment condition.In other words, nozzle 6 in the state of not projecting to outside the profile limited by end 7 by comprising In the profile.
Device 1 also includes the central body 8 for being formed with washer jet 5.End 7 is connected to the terminal attachment of central body 8 (terminal appendage)9.Central body 8 is the box-like body for the inner hollow being in fluid communication with filter washing water inlet portion 4.Especially Ground, box-like body has upper wall 8a and bottom 8b, and the sleeve in filter washing water inlet portion 4 is protruded from bottom 8b(Fig. 3 and Fig. 4).Terminal is attached Part 9 is configured to the internal fluid communication with box-like body so that propulsion nozzle 6 can be supplied to cleaning fluid.Washer jet 5 is substantially The hole made from the upper wall 8a of central body 8 is formed.In the preferred embodiment of invention, central body 8 is substantially multi-leaf-shaped Shape, such as be trilobal shape in the example shown in accompanying drawing.Each leaf portion 10 includes first at the position of mounting structure 2 Divide 10a and form the Part II 10b of the corresponding terminal attachment 9 of central body 8.Part I 10a is interconnected so as to form list Individual element, Part II 10b is protruded from the discrete component.
Multiple connection profiles 11 are tilting extension between rounded end 7 and central body 8.Especially, each connection profile 11 exists It is connected between the Part II 10b of a leaf portion corresponding inclination rounded end 7 and another leaf portion 10 and extends(Fig. 1 and figure 2).More particularly, the inclination rounded end 7 that each connection profile slave phase is answered starts extension, and justifies in the inclination of adjacent leaf portion 10 Angle end 7 nearby terminates at the Part II 10b of the adjacent leaf portion.Therefore, connection profile 11 shape since being tilted rounded end 7 Shape continuously extends, and has the extension of general curved in plan view.In other words, each connection profile 11 is end 7 Extension, and the discontinuity in the transition part between profile 11 and end 7 is connected in the absence of shape(See Fig. 1 and Fig. 2). Connect profile 11 for general curved and with towards central body 8 recess.In other words, in each connection profile 11 and central body There is vacancy between 8.By with end 7 is illustrated in the way of similar mode, as shown in figure 4, connection profile 11 along It is roughly parallel to profile when being observed in the section of the plane of rotational axis x interception with substantially elliptical.It should be noted that each connection Since profile 11 extend in the side opposite with the conveying direction of corresponding propulsion nozzle 6 tilting rounded end 7 accordingly.Root According to having been described, in other words connection profile 11 expands the complete cycle of the foregoing functions expanding of end 7 to central body 8 to device 1 Whole periphery.In other words, according to the principle identical principle with prior statement, connection profile 11 reduces the periphery of central body 8 Central body rotate during form drag.
Preferably, propulsion nozzle 6 is mutually the same and equal from a distance from rotational axis x, thus provides with relative In the device 1 of the balance thrust of rotational axis x.Washer jet 5 is positioned in from rotational axis x different distance, so as to along The whole extension of device 1 provides cleaning jet as uniform as possible.In the preferred embodiment of invention, propulsion nozzle 6 Quantity is equal to the quantity of leaf portion 10;In a preferred embodiment, the quantity is three.The quantity of washer jet 5 is preferably three It is individual, wherein each washer jet is placed in leaf portion 10 at from rotational axis x different distance.
As described above, said apparatus 1 is applied to the dish-washing machine that purge chamber includes two tableware baskets, two of which tableware basket It is stacked on one another, each basket is by main injection apparatus service.
Known clearly from described above, even if when cleaning fluid transfer rate is low, auxiliary injection unit 1 can also be provided Complete function.

Claims (9)

1. a kind of auxiliary injection unit for dish-washing machine, it includes:
Mounting structure (2), it is used for the purge chamber that described device is either directly or indirectly fastened to dish-washing machine, the assembling structure Part (2) includes filter washing water inlet portion (4), and the injection apparatus is designed to surround by the mounting structure (2) Pivot center (X) is rotated;
Multiple washer jets (5), it is in fluid communication with the inlet portion (4), and the washer jet (5) is designed to along under having State component (L1) direction (L) conveying cleaning fluid:The component (L1) is parallel to the pivot center (X) and more than other points Amount;
Multiple propulsion nozzles (6), itself and the inlet portion (4) are in fluid communication, the propulsion nozzle (6) be designed to along have with Direction (P) the conveying cleaning fluid of the vertical component (P1) of the pivot center (X), the propulsion nozzle (6) is than the cleaning spray Mouth (5) is away from the pivot center (X);
The propulsion nozzle (6) is located at corresponding inclination rounded end (7),
The end (7) has substantially elliptical in the section along the plane interception parallel to the pivot center (X) Profile,
Described device includes central body (8), and the washer jet (5) is located in the central body (8), and the end (7) is connected The terminal attachment (9) of the central body (8) is connected to,
Characterized in that,
The central body (8) has leafy shape, and each leaf portion (10) of the leafy shape is included positioned at the mounting structure (2) The Part II (10b) of the corresponding terminal attachment (9) of Part I (10a) and the formation central body (8) at position;Institute Stating auxiliary injection unit includes multiple connection profiles (11), respectively connects profile (11) and is being connected to the Part II of a leaf portion Extend between the corresponding end (7) of (10b) and adjacent leaf portion, described connection profile (11) shape since the end (7) Continuously extend, and there is the extension of bending in plan view.
2. device according to claim 1, it is characterised in that the Part I (10a) of each leaf portion (10) is mutually connected Connect.
3. device according to claim 1, it is characterised in that the connection profile (11) of bending has towards in described Entreat the recess of body (8).
4. the device according to claim 1 or 3, it is characterised in that the connection profile (11) is along parallel to described There is the profile of substantially elliptical when being observed in the section of the plane interception of pivot center (X).
5. device according to claim 1, it is characterised in that respectively connect profile (11) with the corresponding propulsion nozzle (6) since the opposite side of direction of propulsion extend tilting rounded end (7) accordingly.
6. the device according to any one of claims 1 to 3, it is characterised in that each propulsion nozzle (6) is positioned in phase In the groove (7a) for the end (7) answered.
7. the device according to any one of claims 1 to 3, it is characterised in that the propulsion nozzle (6) is from described turn The distance of shaft line (X) is equal.
8. the device according to any one of claims 1 to 3, it is characterised in that the washer jet (5) is positioned in At the pivot center (X) different distance.
9. a kind of dish-washing machine, it includes purge chamber and at least one being positioned in the purge chamber according to claim 1 to 8 Any one of described in auxiliary injection unit.
CN201310188796.3A 2012-06-25 2013-05-21 Auxiliary injection unit for dish-washing machine Active CN103505166B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP12425115.8A EP2679134B1 (en) 2012-06-25 2012-06-25 An auxiliary spray device for dishwashers
EP12425115.8 2012-06-25

Publications (2)

Publication Number Publication Date
CN103505166A CN103505166A (en) 2014-01-15
CN103505166B true CN103505166B (en) 2017-10-13

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CN (1) CN103505166B (en)
ES (1) ES2733209T3 (en)

Families Citing this family (7)

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Publication number Priority date Publication date Assignee Title
CN104720716A (en) * 2014-02-21 2015-06-24 美的集团股份有限公司 Gushing arm structure of dish washing machine
BR112019012588B1 (en) 2016-12-20 2022-10-11 Electrolux Appliances Aktiebolag WASHING LIQUID DISTRIBUTION DEVICE FOR A DISHWASHER AND DISHWASHER
AU2017437705A1 (en) * 2017-10-31 2020-04-23 Electrolux Appliances Aktiebolag Dishwasher spray arm assembly
DE102018206443B4 (en) * 2018-04-26 2022-02-03 BSH Hausgeräte GmbH domestic dishwasher
CN110664343A (en) * 2018-07-02 2020-01-10 青岛海尔洗碗机有限公司 Spraying device of dish washing machine
CN108903878B (en) * 2018-07-11 2021-04-20 佛山市顺德区美的洗涤电器制造有限公司 Spraying system of dish washing machine, control method of spraying system and dish washing machine
DE102021200603A1 (en) * 2021-01-25 2022-07-28 BSH Hausgeräte GmbH domestic dishwasher

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DE29921565U1 (en) * 1999-12-08 2001-04-12 Aeg Hausgeraete Gmbh Dishwasher with a spray arm

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Publication number Publication date
CN103505166A (en) 2014-01-15
ES2733209T3 (en) 2019-11-28
EP2679134A1 (en) 2014-01-01
EP2679134B1 (en) 2019-05-22

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