CN109072905A - Household appliance - Google Patents

Abstract

Household appliance with eccentric worm pumps (101), wherein, the eccentric worm pumps (101) include stator (108) and movable rotor (102), the rotor corresponds to the stator (108), wherein, the rotor (102) has eccentric worm (105) and the drive shaft (109) for driving the eccentric worm (105), wherein, the drive shaft (109) is flexible and integrally constructs with the eccentric worm (105).

Description

Household appliance

Technical field

The present invention relates to a kind of household appliance, especially washing machine or washers.

Background technique

In this kind of household appliance, for fluid, particularly for liquid detergent simply construction and cost just Suitable proportioning pump is advantageous, to be used in household appliance as dosing system.Herein, it is known that the dosage system of different modifications System, such as positive displacement pump (gear pump, peristaltic pump or piston pump).It is also known that so-called eccentric worm pumps, the eccentric worm Pump is usually used in a variety of using purpose.Furthermore it is known that so-called Archimedian screw device, the Archimedian screw device has Only one is uniquely in the moving component of worm screw form, however, the Archimedian screw device be not Stirling engine simultaneously And it cannot be used for current purpose.Additionally, it is known that with multiple nested arrangements worm screw worm pump, the worm screw especially with It two but is also constructed with being nested with four worm screws.However, these solutions it is technically very bothersome and It cannot be used for current purpose.

From a kind of dense for at least one detergent paste comprising solid component of dosage known to document DE 10212184A1 Method of the contracting object into commercial laundry machine, wherein taken out detergent concentrate from container by means of eccentric worm pumps and incited somebody to action It supplies one or more commercial laundry machines, wherein using the detergent concentrate freely flowed and by fixedly cloth It sets extraction tube in a reservoir and takes out detergent concentrate from container by equally fixed eccentric worm pumps.

From the cream container with extraction element a kind of known to document DE 4332850A1, by the cylinder opened towards side With the movable head (Folgeplatte) of the movable sealing on the side for the opening for being arranged in the cylinder and for extracting and transporting The extraction element of the defeated cream forms, wherein the motor with transmission device is located on movable head, leafy stirring-type propeller It is mounted on the placed in the middle on the axis of movable head of the motor, enables the stirring-type propeller by a small margin servo-actuated It is freely rotated in cream below plate, and extraction element and movable head skim in addition and by stirring-type propeller in the middle Overlying regions connection, and cream is transported to dosing mechanism.

In the prior art disadvantageously, proportioning pump relative complex must be manufactured with cost highland, because of the proportioning pump With a large amount of single component, the component must assemble respectively and be arranged as the state of functional ability.

Summary of the invention

The present invention is based on following tasks: propose a kind of simply proportioning pump of construction and cost advantages, it is described to match Amount pump (other than driving device) have the unique moving component of only one and be suitable for convey liquid auxiliary material or Fluid is into washing machine or washer.

According to the present invention, the task is solved by means of a kind of household appliance with eccentric worm pumps, wherein eccentric snail Bar pump includes stator and movable rotor, and the rotor corresponds to stator, wherein rotor has eccentric worm and for driving partially The drive shaft of heart worm screw, wherein drive shaft is flexible and integrally constructs with eccentric worm.It is achieved in for example following skills Art advantage: being capable of extremely simple and low manufacturing cost and low assembly cost ground offer drive shaft.It reduce entire eccentric snails The manufacturing cost and also reduce eccentric worm pumps in the assembly cost of household appliance internal that bar pumps.Thus, it is also possible to imagine, It is provided using entire eccentric worm pumps as in the system of disposable glue tank form.

In order to compensate for driving device compared with eccentric worm, the axle offset of movement dependent on eccentric worm (described partially The movement of heart worm screw is by circular axle offset limits on the contrary with own rotation), drive shaft has at least two pairs of flexure hinges.Cause This is it is possible that strictly provide the accurate arrangement or driving of the drive shaft during transportation system or eccentric worm pumps move The curved position of axis, and multiple components are not set inside drive shaft herein.Instead, it is driven according to motion state Axis only deforms at flexure hinge and therefore realizes that (such as passing through driving device) simply rotation is passed via drive shaft It is delivered on eccentric worm.

In order to realize dynamic balance as well as possible when that will rotate and be transmitted on eccentric worm by driving device and make curved Bent power minimizes, and at least two pairs of flexure hinges of drive shaft are orthogonally arranged relative to each other respectively.The quadrature arrangement of flexure hinge There is provided the minimum of the good dynamic balance and bending force between hinge, wherein also can reduce the friction between flexure hinge. It is substituted in the quadrature arrangement in the case where two pairs of flexure hinges, 120 ° or 60 ° are able to use when using 3 pairs of flexure hinges Angle offset.

According to a kind of preferred embodiment, as the alternative solution to flexure hinge or to this supplement, drive shaft It can be configured to curved spring contact pin axis (Federstegwelle) or spring contact pin shaft coupling.

In order to by fluid from eccentric worm be transported to eccentric worm pumps in the region of higher position, drive shaft It is arranged in casing, described sleeve pipe is configured to the tedge for the fluid to be conveyed.It is possible that continuously conveying is inclined Fluid in the region of heart worm screw and being located at more for eccentric worm pumps is constantly transported to by tedge or casing In the region of high position.Herein, drive shaft completely by by casing rise come fluid winding flow, thus need not be provided additional The fluid of transfer passage or circulation path for rise.

In order to ensure eccentric worm additional protection and in order to additionally reduce the component of whole eccentric worm pumps Quantity, rotor is arranged in inside pipe casing.In other words, it is possible that drive shaft integrally constructs, wherein not only drive Axis and eccentric worm can be arranged in inside pipe casing.This additionally reduces the manufacturing cost of eccentric worm pumps, assembly is spent Or manufacture spends and realizes advantageously fluid guiding and sealing, and again while realizes the sufficient protection of eccentric worm Effect.

In order to additionally improve the structure type of eccentric worm pumps, such as in order to more compactly construct eccentric worm pumps, cover Pipe has bearing, so that drive shaft bearing is in eccentric worm pumps.It is achieved in for example following technological merits: can especially precisely The transmitting on from driving device to eccentric worm is realized on ground, because drive shaft is steadily connect in the region of bearing with casing.

According to a kind of preferred embodiment, bearing construction is gap sealing device or labyrinth-type excluder.This tool Have following technological merits: the sealing device can also be configured to the component of bearing.Now, it is configured to for this purpose Gap sealing device or labyrinth-type excluder are fully sufficient, because sealing device is not subject to the stream to be conveyed in casing The apparent pressure of body.

It is spent to additionally reduce manufacturing cost and the assembly of this device, integrally constructs described sleeve pipe.It therefore can It is capable, the supporting part of drive shaft, the sealing device of drive shaft or the fluid to be conveyed, casing encirclement drive shaft section The section for being configured to receive eccentric worm with casing constructs the component being integrated.

According to another preferred embodiment, eccentric worm pumps have the driving device for driving rotor.Herein, energy Enough realize following technological merits: driving device be applied directly in drive shaft or with the driving axis connection and fortune can be passed through Horizontal drive device runs drive shaft and runs eccentric worm by drive shaft.

According to another embodiment, eccentric worm pumps have connecting element, and the connecting element is configured to make drive shaft It is connect with driving device.Thus it for example can be realized, it is with making driving device and drive shaft modular spaced-apart or lead to again Connecting element is crossed to be mutually arranged.This is for example realized: other component or element and eccentric worm pumps need not herein unclamped In the case where replace driving device because can pass through connecting element realizes simple arrangement and power transmitting.

According to a kind of preferred embodiment, connecting element is configured to the worm drive of conically constriction.Thus, it is possible to It is enough to realize for example following technological merits: the offset that is generated when being pushed into or pulling out eccentric worm pumps or drive shaft relative to Accuracy can not be compensated by the construction of the conically constriction of connecting element present on the orientation of driving device.It is additional Ground, such as it is possible that driving device and then the conically rotation direction of the worm drive of constriction are selected, so that passing through company The rotation direction for connecing element can apply on pulling force to eccentric worm pumps, so that the eccentric worm pumps are arranged in household appliance internal On the position being dimensioned correctly.

In order to consistently continue eccentric worm pumps in the modular organization type of household appliance internal, eccentric worm pumps have For storing the container of fluid, wherein eccentric worm pumps are configured to be put into the immersible pump in container.Accordingly, for family With for the user or operator of utensil it is possible that with new fluid or liquid detergent filling for storing fluid Container, and need not fully remove eccentric worm pumps herein.Herein, container structure is that can take out from household appliance. In other words, thus can be realized household appliance user or operator can by the container including eccentric worm pumps from It is removed in household appliance, to fill the container with fresh fluid or with fresh liquid detergent.Herein, such as It is contemplated that driving device is retained in household appliance and is only capable of the drive shaft including worm screw and is arranged in inside pipe casing Eccentric worm including eccentric worm pumps removed together with container.And then it is carried out filling container with fresh fluid by user, Then container is carried out to imported into household appliance again together with eccentric worm pumps.Herein, the company constructed by conically constriction Connecing element can be realized: driving device and drive shaft are accurately intermeshed, wherein inclined together with surrounding in eccentric worm pumps The narrowing portion of aspect of the receptacle of heart worm pump into household appliance, taper realizes the tolerance of raising.

According to another preferred embodiment, eccentric worm pumps have outlet, which is arranged in the maximum filling of container Position top.Thus for example it is possible that the fluid risen in eccentric worm pump operation by conveying via outlet to desired Position further transport.Herein, gap sealing device or labyrinth-type excluder ensure that the fluid risen does not pass through Bearing in drive shaft, and be further transported only by outlet.

Detailed description of the invention

The task passes through the theme with the feature according to independent claims and solves.Advantageous reality of the invention Apply the theme that mode is attached drawing, specification and dependent claims.

It illustrates:

The schematic representation of the movement of Fig. 1 eccentric worm pumps,

Fig. 2 a has the schematic representation of the drive shaft of link assemblies,

Fig. 2 b has the other schematic representation of the drive shaft of link assemblies,

Fig. 3 has the schematic representation of the drive shaft of eccentric worm,

Fig. 4 has the schematic representation of the casing of outlet,

Fig. 5 has the schematic representation of the eccentric worm pumps of container,

The schematic representation of the eccentric worm pumps of the pull-out with container of Fig. 6 in a top view,

The other schematic representation of the eccentric worm pumps with container of Fig. 7 in a top view,

The schematic representation of Fig. 8 conically worm drive of constriction,

Fig. 9 a has the three-dimensional view of the rotor for the drive shaft for being configured to spring contact pin axis, and

Fig. 9 b has the other three-dimensional view of the drive shaft for being configured to spring contact pin axis, Fig. 9 a rotor.

Specific embodiment

Fig. 1 shows the schematic representation of the movement of eccentric worm 105.Relative to tool, there are two the rotations of the rotor part moved Turning piston pump, (rotor part of such as described two movements is for example present in gear pump or gear spiral (Zahnradschrauben) in, wherein rotor part only implements rotary motion and corresponding letter only around the axis of its own Singly support and drive), in eccentric worm pumps 101, itself rotation of the eccentric worm 105 in addition to its circular symmetry axis 107 Except implement other, being superimposed with this rotation, on cylindrical outer cover movement.The rotary motion isolated in Fig. 1 by Circuit orbit in x-y plane is shown.The rolling movement being superimposed with rotary motion causes the resultant motion of eccentric worm 105, The resultant motion is marked in Fig. 1 by multiple single arrows on circuit orbit.Herein, preferably a kind of based in 2:1 The structure of cycloid, wherein rotational frequency is opposite and generates identical mould (Betrag).In other hypocycloid structures It can generate other proportionate relationships, but other proportionate relationships typically always proportionate relationship of integer.Primary Property selection structural shape in, determine the proportionate relationship of two kinds of rotational frequencies.Rotor is implemented in the clockwise direction around it certainly The rotation of the axis of body, and axis rolls in the counterclockwise direction from cylindrical outer cover or circle.Briefly, for bias Rotation, is on the one hand transmitted in rotor by the driving device 103 of worm screw 105, and on the other hand balance it is a kind of constant and itself Circular on the contrary, identical frequency the axle offset of rotation.In order to transmit rotational motion in the case where balancing axle offset, usually The known actuated element as cardan axis, chain link shaft coupling, gear and yielding coupling.The ready to balance herein of rotor Offset can substantially be determined on the 5% of the length of the part of the transmitting torque of axis or drive shaft by structural measure. Now, such as it is contemplated that 20mm driving shaft length on 1mm parallel axle offset.

Fig. 2 a shows the schematic representation of the drive shaft 109 with link assemblies 111.It is shown in fig. 2 a with first view Drive shaft 109, wherein first pair of flexure hinge 111 is realized by the contraction of the diameter of drive shaft 109 respectively.The receipts of diameter Contracting causes reduced Plane Rotation inertia of the drive shaft 109 on the position that these correspondingly shrink, this passes through the material by elasticity Tectonic forcing axis 109 is expected to realize.Drive shaft 109 under 90 ° of torsion of visual angle is shown in the second view of Fig. 2 a, In, another pair flexure hinge 11 is realized by the local contraction of the cross section of drive shaft 109.In order to accommodate axle offset, chain link Component can be deployed directly on the eccentric worm 105 being preferably made from plastic as the plastic links of elasticity.Herein, two pairs Flexure hinge 111 is arranged orthogonally with respect to one another respectively, wherein every a pair of two parallel to each other and the flexure hinge 111 set herein Realize axle offset in a plane.It is realized with first pair of at least one orthogonally arranged, second pair of flexure hinge 111 The balance of the axle offset in plane extended vertically with the first plane.Due to production or in order to simplify component geometry knot Structure, the orthogonal respectively and flexure hinge set is to can also be successively arranged.When drive shaft 109 rotates, the successive cloth that is proposed (substitution arrangement) in a plane is set to cause and the miscellaneous deviation of ideal rotational motion, for example, in driving side and Angular error or drive shaft 109 between slave end change about the length of revolution.However, these deviations it is very small and by In structural design for this application in negligible range.Machine relative to quick operation and big quality Component, this but will be inappreciable in terms of synchronous vibration (Gleichlaufschwankung) and can ignore that.

Fig. 2 b shows another schematic representation of the drive shaft 109 with link assemblies.The diagram of Fig. 2 b, which is shown, to be run Drive shaft 109 under state, wherein not only upper bend hinge 111 but also lower knuckle hinge 111 is slightly bend, so as to Compensate axle offset from driving device 103s, relative to eccentric worm 105.

Fig. 3 shows the schematic representation of the drive shaft 109 with eccentric worm 105.In current side view, drive shaft 109 include a pair of curved hinge 111, and eccentric worm 105 is located on the lower end of drive shaft 109.Therefore, it generally generates The rotor component integrally constructed, the rotor component have pump rotor, having on from driving device 103 to eccentric worm 105 concurrently Deviate the motion transfering device of balance, the major function of bearing, sealing device and driving wheel.

Fig. 4 shows the schematic representation of the casing 113 with outlet 121.The casing 113 of drive shaft 109 is used as simultaneously to be wanted The tedge of the fluid of conveying and also serve as the attachment device between driving device 103 and pump unit.Herein, Guan Shang There is bearing 115, so that drive shaft 109 is supported on inside casing 113 on end.Herein, casing 113 can also be regarded as inclined It the stator 108 of heart worm screw 105 and is preferably able to integrally construct.However, due to producing and assembling, stator component it is more Part formula embodiment also can be meaningful.Therefore, stator 108 or casing 113 have pump stator concurrently, drive shaft 109 is led Xiang Guan, the tedge of fluid, the exterior part of bearing and fluid channel the level as so-called outlet 121 and the part set Function.

Fig. 5 shows the schematic representation of the eccentric worm pumps 101 with container 119.Eccentric worm pumps 101 are used as diving It pumps, i.e., it sinks to from top in the container 119 to the fluid of dosage.The outlet 121 of eccentric worm pumps 101 is located at than container The 119 higher position of highest liquid level, and the driving device 103 for running eccentric worm pumps 101 be also disposed at it is described most Above high liquid level.That is, the filler being located inside container 119 or liquid level there is no eccentric worm pumps are below and by holding The outwardly directed element of wall or component.Therefore, also without component or element must obtain it is corresponding either statically or dynamically Sealing, and the total system of eccentric worm pumps 101 is fully sealed due to its technical construction.This additionally assists in entire inclined The cheap manufacture of the less parts quantity and cost of heart worm pump 101, additionally significantly improves eccentric worm pumps 101 as a result, Simplicity and reliability.Since eccentric worm pumps 101 are configured to immersible pump, eccentric worm 105 is located at the minimum point of container 119, And entire eccentric worm pumps 101 are therefore even without being aspirated.Two pump element (rotors with eccentric worm 105 102 or drive shaft 109 and stator 108 or casing 113) the manufacture having been carried out allow at low cost with relatively large or Rough tolerance and corresponding big gap size are manufactured by simple material.In this case it is to be noted, that due to existing seam Gap size and the error that may cause declines with the viscosity for wanting the fluid of dosage to increase.Because such as liquid detergent is in this way Washing auxiliary material compared with water usually have big viscosity, so the big gap size inside eccentric worm pumps 101 is fair Perhaps, because it leads to the significant decrease to rub.Due to reduced friction, and make the driving device for running eccentric worm pumps 101 The decline of power required by 103, as a result, thus be able to use the lesser and relatively inexpensive motor of price.However, unrelated with this Ground, also it is possible that being improved service life due to the reduced abrasion inside eccentric worm pumps 101.

Since eccentric worm pumps 101 are configured to immersible pump, can also tolerate for example on the bonding station of stator 108 or Potential blow-by on bonding station between drive shaft 109 and eccentric worm 105, because the fluid of discharge can be toward residual titration Fall in slot or container 119 in.Other than small dosage error, this does not have the functionality of eccentric worm pumps 101 tight The influence of weight.Herein, although the bearing 115 for supporting drive shaft 109 must be constructed hermetically, the bearing 115 is only It merely has to confrontation dynamic head (Staudruck) and exists, the dynamic head generates inside outlet 121.Therefore, herein, simple Single gap sealing device or labyrinth-type excluder is sufficient.Eccentric worm pumps 101 are as having been carried out from upper Side is sunk in container 119, wherein horizontal outlet 121 puts in matching for household appliance 100 above the top edge of container 119 It measures in region.Therefore, do not exist below maximum level across the crack of chamber wall, so container 119 be sealing and And it will not be flowed out in the case where the single component failure of pump or damage.Drive shaft 109 leads in driving wheel form, water The flat and transmitting element 106 set, what this was mountable to can be taken off with eccentric worm pumps 101 pour in shell or with can be from household The container 119 that utensil 100 takes out is adapted, because eccentric worm pumps 101 are configured to transmitting element 106 together by household The bulkhead apertures that the user or operator of utensil 100 pass through household appliance 100 take out.Generally, horizontal and set, in driving It is too far that the transmitting element 106 of driving wheel form has an advantage that it will not be stretched out upwards, whole including container 119 as a result, There is a eccentric worm pumps 101 that can be taken off the extraordinary ratio of the maximum fill level relative to fluid of structure height to close System.

Fig. 6 illustrates the schematic representation of eccentric worm pumps 101 with container 119, pulling out to overlook.In driving wheel The transmitting element 106 of form is located at 109 top of drive shaft, and the transmitting element can be with the connecting element 104 of driving device 103 Generate cooperation.Eccentric worm pumps 101 are in the state of pulling out in household appliance 100 with whole container 119.In the implementation In mode, the connecting element for the worm screw form that household appliance 100 finishes up with being configured with driving device 103 and tapered ground constriction 104.The embodiment realizes the simple connection between connecting element 104 and transmitting element 106, the transmitting element arrangement In the upper end of drive shaft 109.Transmitting element occur when being pushed into or pulling out container 119, above drive shaft 109 It is torn open necessary to 106 rotation and the thus possibility for being directly connected to can be used in generation eccentric worm pumps 101 with drive shaft 109 It is broken.Such as when eccentric worm pumps 101 are cemented due to the residue of the drying of fluid, this be will be necessary.Therefore, therewith Correspondingly, the length of connecting element 104 is greater than to be docked to the length of required cooperation section on transmitting element 106.It is additional Ground can select the rotation direction of driving device 103 and eccentric worm pumps 101 in a preferred manner so that connecting element 104 or Pulling force is applied on container 119 by the worm screw of person's conically constriction.Therefore, no such as locking device or other protective elements In the case where such additional protection measure, thus container 119 is reliably arranged in household appliance 100, because by continuous Operation ensure that the eccentric worm pumps 101 including the container 119 with fluid are correctly located in household appliance 100.

Fig. 7 illustrates the other schematic representation of the eccentric worm pumps 101 with container 119 to overlook.Herein, partially Heart worm pump 101 and container 119 are fully fitted into now in household appliance 100.

In general, rotor 102 or eccentric worm 105 should be driven with following frequencies, which is obviously in typical horse Up to below revolving speed.Herein, for example, at least the revolution speed or eccentric worm pumps of the motor rotary speed of tens U/s and about 1U/s turn Speed can be considered as representative value.Due to this, it is proposed here, transmitting element 106, the transmitting are arranged in drive shaft 109 Element is driven by the connecting element 104 connecting with driving device 103.This can for example be carried out with the transmission ratio of 1:10.For inclined The total system of heart worm pump 101, this realizes favo(u)red state of the single component inside household appliance 100.

It can also imagine, integrated plastic links are set or with the drive shaft 109 more than only two pairs of chain links, it is described Two pairs of chain links also can with non-orthogonal chain link (such as three with 120 ° of chain links pair being staggered relative to each other are symmetrical, Dreiersymmetrie it) constructs in combination.Similarly, drive shaft 109 can be configured to cylindrical helical spring form, preferably The helical spring has the cross section of rectangle.Additionally or alternatively, also it is contemplated that by motor by worm shaft, Standard connection portion, bevel gear drive the driving device 103 in other ways, wherein motor can also directly drive ground Construction.Equally it is contemplated that pump or eccentric worm pumps 101 are also configured to manually run.Substantially, it is able to use difference Material be used for rotor 102 and stator 108.Such as it is contemplated that the hard material of setting is used for transmitting element 106, and it is arranged The material of soft elasticity is for rotor 102 or eccentric worm 105 and is also provided with the material of soft elasticity for drive shaft 109.Gu So, particularly with eccentric worm 105 used in industrial advantageously, in two components one (i.e. or rotor 102 or Person's stator 108) it is manufactured by the material of soft elasticity, to realize the better seal between rotor 102 and stator 108.Herein Also it is possible that have the 2K die casting in the region of suitable soft elasticity (such as rotor surface and bending chain link) and hard structure Part (such as transmitting element 106 or rotor matrix for torque transfer) manufactures.

Fig. 8 shows the schematic representation of connecting element 104, and the connecting element is configured to the worm drive of conically constriction Device.

The three-dimensional view of the rotor 202 with the drive shaft 209 for being configured to spring contact pin axis, institute is shown respectively in Fig. 9 a and 9b It states drive shaft and eccentric worm 205 is integrally constructed and constituted to the drive shaft discussed above with flexure hinge 111 109 alternative according to the invention.

In figures 9 a and 9b in shown embodiment, spring contact pin axis of the rotor 202 in addition to substantially hollow cylindrical It include driving wheel 206, cylindrical sealing element 206a and the eccentric worm integrally constructed with spring contact pin axis 209 except 209 205.As mentioned above for rotor 202 to be coupled to drive motor, the driving wheel is configured with driving wheel 206 The gear 206 of multiple teeth portion.In figures 9 a and 9b, the exemplary teeth portion of gear 206 is labeled as teeth portion 206-1.Sealing element Driving wheel 206 connect with spring contact pin axis 209 and is rotatably supported in bias with being used for 202 Fluid Sealing of rotor by 206a In the corresponding bearing 115 (see Figure 4 and 5) of worm pump 101.As described above, eccentric worm 205 is configured to receive inclined In the correspondingly molding stator 108 of heart worm pump 101, so as to relative to the rotation of stator 108 and thus for example calm 119 trandfer fluid of device.

In figures 9 a and 9b in shown embodiment, substantially the spring contact pin axis 209 of hollow cylindrical is by multiple bullets Spring connecting sheet shaft element composition, the spring contact pin shaft element construct and along spring contact pin axis 209 with being substantially identical Longitudinal axis arrangement.Three spring contact pin shaft elements of spring contact pin axis 209 are illustratively marked in the perspective representation of Fig. 9 a 209a, 209b and 209c, the spring contact pin shaft element is it may be said that constitute the bare bones of spring contact pin axis 209 (Elementarzelle), wherein below with representing multiple spring contact pin shaft elements, illustratively explaining spring contact pin in detail Shaft element 209a.

Spring contact pin shaft element 209a includes the first top ring-spring contact pin and the second lower annular spring contact pin, described First spring contact pin and the second spring contact pin are being surround in the plane of the longitudinal axis perpendicular to spring contact pin axis 209 respectively Extend in the circumferential direction of its longitudinal axis.Here, top ring-spring contact pin along spring contact pin axis 209 longitudinal axis relative to Second ring-spring contact pin constructs with being offset horizontally by.

In figures 9 a and 9b in shown embodiment, the first ring-spring contact pin of spring contact pin shaft element 209a and Second ring-spring contact pin respectively includes the first lower part semicircular spring contact pin section and the second top semicircular spring contact pin area Section.Here, the first semicircular spring contact pin section is respectively relative to the longitudinal axis of spring contact pin axis 209 relative to the second semicircular Spring contact pin section is arranged with being staggered in the axial direction, is arranged in axially offset manner more precisely, having, the axial dipole field is less than Parallel offset between first ring-spring contact pin and the second ring-spring contact pin.In other words: the first semicircular spring contact pin Section and the second semicircular spring contact pin section limit different planes respectively, and the different plane is along spring contact pin axis 209 longitudinal axis is offset horizontally by relative to each other and sets.

As that can be learnt from Fig. 9 a, the first lower part of the first top ring-spring contact pin of spring contact pin shaft element 209a The second lower loop that semicircular spring contact pin section passes through axial the first connecting element 214a and spring contact pin shaft element 209a First lower part semicircular spring contact pin section material of shape spring contact pin is connected cohesively together.In addition, spring contact pin shaft element 209a The second top semicircular spring contact pin section of the first top ring-spring contact pin pass through the second axial connecting element 210a In locking manner with the second top semicircular spring contact pin section material of the second lower annular contact pin of spring contact pin shaft element 209a Connection.

The second axial connecting element 210a can relative to spring contact pin axis 209 longitudinal axis respectively with axial first Connecting element 214a is relatively constructed.Here, the first axial connecting element 214a can pass through respectively in radially Between contact pin and axial direction the second connecting element 210a material be connected cohesively together.The intermediate jack is for example for by means of die casting side Legal system can be avoided side when making spring contact pin axis 209 recessed (Hinterschnitt).

It can such as be learnt from Fig. 9 a, spring contact pin shaft element 209a passes through the third connecting element 212a of two axial directions respectively (being based on perspective representation mode, can see the third connecting element 212a of only one axial direction in fig. 9 a) and the side of being disposed thereon Spring contact pin shaft element (i.e. such as spring contact pin shaft element 209b) material below is connected cohesively together.

All features explained and shown in combination with single embodiment of the invention can be with different combinations It is arranged in theme according to the present invention, to realize its advantageous effect simultaneously.

Reference signs list

101 eccentric worm pumps

102 rotors

103 driving devices

104 connecting elements

105 eccentric worms

106 transmitting elements

107 axis of symmetry

108 stators

109 drive shafts

111 flexure hinges

113 casings

115 bearings

119 containers

121 outlets

202 rotors

205 eccentric worms

206 gears

206-1 teeth portion

206a sealing element

209 spring contact pin axis

209a spring contact pin shaft element

209b spring contact pin shaft element

209c spring contact pin shaft element

The connecting element of 210a axial direction

The connecting element of 212a axial direction

The connecting element of 214a axial direction

Claims (15)

1. the household appliance that one kind has eccentric worm pumps (101), wherein the eccentric worm pumps (101) include stator (108) With movable rotor (102；202), the rotor corresponds to the stator (108), wherein the rotor (102；202) have Eccentric worm (105；205) and for driving the eccentric worm (105；205) drive shaft (109；209), which is characterized in that The drive shaft (109；209) be flexible and with the eccentric worm (105；205) it integrally constructs.

2. household appliance according to claim 1, which is characterized in that the drive shaft (109) is bent at least two Duis Hinge (111).

3. household appliance according to claim 2, which is characterized in that described at least two pairs of the drive shaft (109) are curved Bent hinge (111) is orthogonally arranged relative to each other respectively.

4. household appliance according to claim 1, which is characterized in that the drive shaft (209) is configured to spring contact pin axis.

5. household appliance according to any one of the preceding claims, which is characterized in that the drive shaft (109；209) cloth It sets in casing (113), described sleeve pipe is configured to the tedge for the fluid to be conveyed.

6. household appliance according to claim 5, which is characterized in that the rotor (102；202) it is arranged in described sleeve pipe (113) internal.

7. household appliance according to claim 5 or 6, which is characterized in that described sleeve pipe (113) has bearing (115), with Make the drive shaft (109；209) it is supported in the eccentric worm pumps (101).

8. household appliance according to claim 7, which is characterized in that the bearing (115) is configured to gap sealing device Or labyrinth-type excluder.

9. the household appliance according to any one of claim 5 to 8, which is characterized in that described sleeve pipe (113) integrally structure It makes.

10. household appliance according to any one of the preceding claims, which is characterized in that the eccentric worm pumps (101) With for driving the rotor (102；202) driving device (103).

11. household appliance according to claim 10, which is characterized in that the eccentric worm pumps (101) have connection member Part (104), the connecting element are configured to make the drive shaft (109；209) it is connect with the driving device (103).

12. household appliance according to claim 11, which is characterized in that the connecting element (104) is configured to conically The worm drive of constriction.

13. household appliance according to any one of the preceding claims, which is characterized in that the eccentric worm pumps (101) With the container (119) for storing fluid, wherein the eccentric worm pumps (101) are configured to be put into the container (119) immersible pump in.

14. household appliance according to claim 13, which is characterized in that the container (119) structure in a removable manner It makes.

15. household appliance described in 3 or 14 according to claim 1, which is characterized in that the eccentric worm pumps (101) have Mouth (121), described export are arranged in above the maximum fluid filler of the container (119).