CN110529387A - Pump and washing facility - Google Patents

Abstract

The present invention provides a kind of pump and washing facilitys, the pump includes driving device, the impeller and mask for being mounted on described driving device one end are in the pump case of the impeller periphery, the impeller is equipped with the water inlet positioned at the impeller center, the pump case is equipped with the second chamber for accommodating the impeller, the driving device is equipped with drive shaft, it is sheathed on the rotor assembly of the drive shaft, field frame assembly positioned at the rotor assembly periphery, and it is placed in the drive shaft and is located at the bearing at the rotor assembly both ends, the drive shaft is equipped with axial wall and the axially extending first chamber in the axial wall, the axial wall is equipped at least one Drainage Division radially penetrated through, the first chamber is connected with the second chamber by the water inlet.So set, making water lubrication between the bearing and the drive shaft, reduce the friction between bearing and drive shaft.

Description

Pump and washing facility

Technical field

The present invention relates to a kind of household appliance technical field more particularly to a kind of pumps and washing facility.

Background technique

Brshless DC motor is made of motor body and driver, is a kind of typical electromechanical integrated product.It is existing Brushless motor be that water is allowed to flow in water diversion disk rotor from the fixed carrier openings of bearing, so that sandstone is flowed into bearing and is turned Between axis, bearing is caused to be seriously worn, keeps motor operation unsmooth.

In view of this, it is necessary to a kind of pump and washing facility are designed, to solve the above problems.

Summary of the invention

It the pump of sandstone and washing can be set between effective bearing cleaning and drive shaft the purpose of the present invention is to provide a kind of It is standby.

To achieve the above object, the present invention adopts the following technical scheme: a kind of pump, including driving device, be mounted on it is described In the pump case of the impeller periphery, the driving device is equipped with drive shaft, is sheathed on the impeller and mask of driving device one end The rotor assembly of the drive shaft, positioned at the rotor assembly periphery field frame assembly and be placed in the drive shaft and Bearing positioned at the rotor assembly both ends, the drive shaft are equipped with axial wall and axially extending first in the axial wall Chamber, the axial wall be equipped at least one Drainage Division for radially penetrating through, the impeller be equipped with positioned at the impeller center into The mouth of a river, the pump case be equipped with the second chamber for accommodating the impeller, the first chamber and the second chamber by it is described into The mouth of a river is connected.

Optionally, the bearing along the radial direction of the drive shaft projection with the projection of the Drainage Division at least partly Overlapping.

Optionally, the Drainage Division is at least one drainage hole for radially penetrating through the axial wall, the throwing of the drainage hole The projection of shadow and the bearing is least partially overlapped.

Optionally, the pump includes the first bearing and second bearing set on rotor assembly both ends, and the Drainage Division includes First Drainage Division and the second Drainage Division, radially, the projection of first Drainage Division projected with the first bearing is extremely The projection of small part overlapping, second Drainage Division is least partially overlapped with the projection of the second bearing.

Optionally, the pump further includes the bracket being set between the first bearing and the impeller, and the branch is set up There is the third chamber for accommodating the first bearing, the first bearing is fixed in the third chamber.

Optionally, the pump is additionally provided with the water diversion disk to separate the rotor assembly and the field frame assembly, described Water diversion disk is equipped with the annular and separation wall extended to form up and down, the 4th chamber on the right side of the annular and separation wall, from the ring Shape partition wall is close to the wall extension that the inside edge of the drive shaft side extends to form to the right and is located in the wall extension The 5th chamber, the rotor assembly is housed in the 5th chamber, and the field frame assembly is then housed in the described 4th In chamber.

Optionally, the pump case is equipped with input duct, the second chamber to accommodate the impeller and with described second The liquid outlet pipe of chamber, the input duct are axially connected to the second chamber, described in the liquid outlet pipe radial communication Second chamber.

Optionally, the 6th chamber is formed among the pump case and the impeller, the pump is additionally provided with to described the The heating device of six chamber indoor liquids heating.

Optionally, the shape of the drainage hole can be the one of one of strip, circle, square or both cooperation Kind or one kind of three's cooperation.

The present invention also provides a kind of washing facilitys, have pump and washing cavities, the liquid outlet pipe of the pump and the washing cavities Connection, the pump further include the pump as described in any one of claim 1-9.

From the above technical scheme, the drive shaft in the driving device be equipped with axial wall and it is axially extending and be located at institute State the chamber in axial wall, be equipped with the Drainage Division that radially penetrates through, the Drainage Division and the chamber intercommunication on the axial wall, water into It after entering chamber, is sprayed by Drainage Division, so that the sandstone of bearing cleaning surrounding, reduce the friction between bearing and drive shaft.

Detailed description of the invention

Fig. 1 is present invention pump stereoscopic schematic diagram.

Fig. 2 is the cross-sectional view of present invention A-A along Fig. 1.

Fig. 3 is that the present invention removes the part isometric exploded view after pump case and housing.

Fig. 4 is the stereoscopic schematic diagram of rotor assembly of the invention.

Fig. 5 is drive shaft stereoscopic schematic diagram of the invention.

Fig. 6 is the stereoscopic schematic diagram of impeller of the present invention

Fig. 7 is the cross-sectional view of rotor assembly of the invention.

Fig. 8 is the schematic diagram of rotor magneton of the invention.

Fig. 9 is the cross-sectional view of B-B in Fig. 8 of the present invention.

Appended drawing reference: 100- pump；1- pump case；10- second chamber；11- input duct；12- heating device；13- cavity wall； 14- liquid outlet pipe；The 6th chamber of 15-；2- driving device；21- drive shaft；The first Drainage Division 211-；The first drainage hole of 2111-； The second Drainage Division 212-；The second drainage hole of 2121-；213- first chamber；The inlet opening 214-；215- apopore；216- axial wall； 22- rotor assembly；The left end 221- wall；222- right end wall；223- inner wall；224- outer wall；23- field frame assembly；231- stator core； 232- stator winding；24- first bearing；25- second bearing；26- connector；261- cavity；The left holding part of 262-；The right card of 263- Gripping member；The left annular convex platform of 264-；The right annular convex platform of 265-；27- limiting slot；28- rotor magneton；3- water diversion disk；The 4th chamber of 30- Room；31- annular and separation wall；The 5th chamber of 310-；32- buckle；33- wall extension；4- housing；42- housing；5- impeller；51- water inlet Mouthful；6- bracket；60- third chamber；61- disk-shaped main body；62- endless wall；7-O ring；8-O shape sealing ring.

Specific embodiment

To make the objectives, technical solutions, and advantages of the present invention clearer, right in the following with reference to the drawings and specific embodiments The present invention is described in detail.

It please refers to shown in Fig. 1 to Fig. 9, present invention discloses a kind of washing facility, the washing facility is equipped with a kind of pump 100, the pump 100 includes driving device 2, the water diversion disk 3 that is mounted on 2 left end of driving device, is mounted on the driving and fills Set the pump case 1 of the housing 4 of 2 right ends, the impeller 5 for being mounted on 3 left side of water diversion disk and mask in 5 outside of impeller, institute It states pump case 1 and is equipped with the second chamber 10 for accommodating the impeller 5.

The driving device 2 is can be with the DC brushless motor of positive and negative rotation, and the DC brushless motor 2 is including described in control The control circuit (not shown) of the operation of driving device 2, is sheathed on the driving at the drive shaft 21 being electrically connected to the control circuit The rotor assembly of axis and field frame assembly positioned at the rotor assembly periphery.Rotor assembly 22, field frame assembly 23 and the drive Moving axis 21 is fixedly connected.The impeller 5 is fixed on the left end of the drive shaft 21.The first bearing 24 is placed on the driving On axis 21 and between the impeller 5 and the rotor assembly 22, the second bearing 25 is placed in the drive shaft 21 And between the rotor assembly 22 and the housing 4.

As shown in Fig. 2, the water diversion disk 3 is equipped with the annular and separation wall 31 extended to form up and down, is located at the annular and separation 4th chamber 30 on 31 right side of wall extends to the right from the annular and separation wall 31 close to the inside edge of 21 side of drive shaft The wall extension 33 of formation and the 5th chamber 310 of cylinder in the wall extension 33.The rotor assembly 22 is received In the 5th chamber 310.The field frame assembly 23 is then housed in the 4th chamber 30, and the wall extension 33 separates The rotor assembly 22 and the field frame assembly 23.In present embodiment, the field frame assembly 23 is equipped with the stator positioned at periphery Iron core 231 and the stator winding 232 in the stator core 231.The stator core 231 is around 21 shape of drive shaft At a circumference (not labeled) with first diameter.The annular and separation wall 31 of the water diversion disk 3 in left-right direction mask in institute State the outside of field frame assembly 23, the circumference where the annular and separation wall 31 has a second diameter, the second diameter be less than or Equal to the first diameter, so set, making compact-sized between the part of the pump 100, the mesh of 100 miniaturization of realization pump 's.

The pump 100 is additionally provided with one to the bracket 6 of the fixation bearing 21 and is sealed in the bracket 6 and first O ring 7 between bearing 24.The water diversion disk 3 is matched with the bracket 6 by buckle 15.The O ring 7 is O-ring seal.

The bracket 6 is equipped with the disk-shaped main body 61 extended up and down, is located at intermediate position through the disk-shaped main body 61 Third chamber 60, and the endless wall 62 extended to the right from the disk-shaped main body right lateral surface.The third chamber 60 It is connected to the 5th chamber 310 and their own central axis is conllinear.The ring of the endless wall 62 and the water diversion disk 3 31 mutual cooperation clamping of shape partition wall separates the second chamber 10 with the rotor assembly 22 or so.

The first bearing 24 is nested in the drive shaft 21 and is located at the left end of the rotor assembly 22, is located at described Between bracket 6 and the rotor assembly 22, the O ring 7 is to be sealed the first bearing 24 on 6 right side of bracket.Institute The left end for stating first bearing 24 is housed in the third chamber 60 of the bracket 6.The second bearing 25 is nested with described The right end of drive shaft 21, between the rotor assembly 22 and the housing 4.The water diversion disk 3 and the second bearing 25 Between be again provided with third sealing ring (not labeled) to reach to the sealing between the water diversion disk 3 and the second bearing 25.

The pump case 1 is equipped with input duct 11, mask in the cavity wall 13 of 10 periphery of second chamber and the cavity wall 13 Connection and the liquid outlet pipe 14 being connected to the second chamber 10 and the outer rim being clasped with the water diversion disk 3.It is described outer An O-ring seal 8 is additionally provided between edge and the water diversion disk 3, the O-ring seal 8 to seal the pump case 1, to prevent Only the liquid in second chamber 10 leaks out.It is described O-shaped when by the pump case 1 by being sealed with the water diversion disk 3 Sealing ring 8 is radially compacted deformation, to realize the sealing between the pump case 1 and the water diversion disk 3 radially.Such as This setting also reduces the pump 100 in the volume of radial direction, integrally makes the pump 100 compact-sized.

The 6th chamber 15 is formed between the pump case 1 and the impeller 5, the pump case 1 is at the input duct 11 It is fixed with heating device 12, the heating device 12 is to the water heating in the 6th chamber 15.The impeller 5 is housed in In the second chamber 10, water inlet 51 is equipped at the center of the impeller 5.The first chamber 213 and the second chamber 10 are connected by the water inlet 51.

The hollow setting of the drive shaft 21, equipped with axial wall 216 and the axially extending first chamber in axial wall 216 213, the first chamber 213 is connected with the water inlet 51 of the impeller 5, so that water passes through described in the water inlet 51 entrance In first chamber 213.The drive shaft 21 is graphite bearing or ball bearing, but is not limited only to the two, as long as reaching this The effect of invention.The axial wall 216 is equipped with the first Drainage Division 211 and the second Drainage Division 212 that radially penetrate through, and described the One Drainage Division 211 includes at least one first drainage hole 2111 along 21 radial direction of drive shaft, second Drainage Division 212 include at least one second drainage hole 2121 along 21 radial direction of drive shaft, radially, first draining The projection in portion 211 is Chong Die with the projection section of the first bearing 24, the projection of second Drainage Division 212 and second axis Hold 25 projection section overlapping.The shape of first drainage hole 2111 and second drainage hole 2121 can be strip, circle One kind of one of shape, square or both cooperation or one kind of three's cooperation, in the present embodiment, described first The shape of drainage hole 2111 and second drainage hole 2121 is not limited solely to above-mentioned three kinds, as long as water can be made from first draining It is sprayed in hole 2111 and/or second drainage hole 2121, achievees the effect that the sandstone for cleaning 21 surrounding of drive shaft. The drive shaft 21 include positioned at 21 left end of drive shaft inlet opening 214 and be located at and the 21 left end phase of drive shaft Pair right end apopore 215.The first chamber 213 and first drainage hole 2111, second drainage hole 2121 are mutual It connects.In the present embodiment, first Drainage Division 211 includes surrounding 4 that 21 axial wall 216 of drive shaft is arranged solely The first vertical drainage hole 2111, second Drainage Division 212 include 4 independences around 21 axial wall 216 of drive shaft setting The second drainage hole 2121, can to have between the first bearing 24 and the second bearing 25 and the drive shaft 21 Good lubricant effect.In the pump 100, water enters from input duct 11, by the water inlet 51 on the impeller 5 from institute The inlet opening 214 for stating 21 left end of drive shaft enters in the first chamber 213, from the apopore of 21 right end of drive shaft 215 outflows, under the circumference of the high-speed rotation, water in first chamber 213 is from first drainage hole 2111 for the drive shaft 21 It is sprayed outward with second drainage hole 2121, forms the water flow for washing away the first bearing 24 and second bearing 25, avoid institute The phenomenon that dry grinding between first bearing 24 and the drive shaft 21, the second bearing 25 and the drive shaft 21 is stated, when Carve the lubrication kept between the first bearing 24 and the drive shaft 21, the second bearing 25 and the drive shaft 21, drop The operating noise of the low pump 100, extends the service life of the pump 100；Simultaneously because water is from first drainage hole 2111 and institute It states the second drainage hole 2121 to be discharged at a high speed, can remove the first bearing 24,25 surrounding impurity of the second bearing, described in reduction The abrasion of first bearing 24, the second bearing 25, thus reduce the drive shaft 21 and first bearing 24, second bearing 25 it Between abnormal vibration, reduce noise.In the present embodiment, water enters described first from the inlet opening 214 of the drive shaft 21 It in chamber 213, is flowed out using the water outlet 215, finally from the outflow (not shown) of the aperture on the water diversion disk 3, with institute The water stated in the 6th chamber 15 converges, to be discharged from the liquid outlet pipe 14.During water flow is logical, it may be implemented described Water quality fast exchange between water diversion disk 3 and the 6th chamber 15, the impurity in water are not easy to precipitate, be easily drained.

The rotor assembly 22 is including rotor magneton 28 and between the drive shaft 21 and the rotor magneton 28 Connector 26.The rotor magneton 28 includes left end wall 221, the right end wall 222 opposite with the left end wall and connection institute State the inner wall 223 and outer wall 224 of left end wall 221, the right end wall 222.The connector 26 is arranged in a ring and along the drive 21 axial direction of moving axis extends, and forms left holding part 262 and right holding part 263.The left holding part 262 and the right holding part 263 extend along the left end wall 221 and the right end wall 222 to the radial direction of the rotor magneton 28 respectively, form left ring Shape boss 264 and right annular convex platform 265, the left annular convex platform 264 and right annular convex platform 265 carry out the rotor magneton 28 Fixing.The connector 26 is equipped at least one cavity 261 along 21 axial direction of drive shaft, and water is from the hole on connector 26 (not marking) enters in the cavity 261, and the rotor magneton 28 comes into full contact with the cooling water in the cavity 261, thus Reduce the temperature inside the rotor assembly 22 of the pump 100.In the present embodiment, the connector 26 uses plastic material It is prepared, reduces the rotary inertia of the rotor assembly 22, reduce the influence to the rotor assembly concentricity, reduce institute The noise and abnormal vibration that pump 100 generates are stated, enables the rotor assembly 22 by more precise control, improves the pump 100 Working efficiency.

The rotor magneton 28 is in the junction of the left end wall 221 and the inner wall 223, the right end wall 222 and institute The junction for stating inner wall 223 is equipped at least one limiting slot 27.The connector 26 connects the rotor by way of injection molding Magneton 28 can guarantee that the rotor assembly 22 has stronger radial force after injection molding, when high speed rotation is not easy and the rotor Magneton 28 separates.In the present embodiment, the limiting slot 27 is the arc-shaped to concave and is set in a symmetrical described On rotor magneton 28, in other embodiments, the limiting slot 27 can be set to asymmetric form, meanwhile, to described The shape of limiting slot 27 with no restrictions, can be any shape, hold the effect of the rotor magneton 28 i.e. as long as can be realized It can.

In conclusion the drive shaft 21 of heretofore described pump 100 is equipped with axial wall 216 and axially extending and be located at described First chamber 213 in axial wall 216 is equipped with the first drainage hole 2111 radially penetrated through and the second draining on the axial wall 216 Hole 2121, when being full of water in the drive shaft 21 when 21 high speed rotation of drive shaft, water is drained from described first It is sprayed in hole 2111 and the second drainage hole 2121, between the first bearing 24 and the drive shaft 21, the second bearing Play the role of lubrication between 25 and the drive shaft 21, improve the service life of the pump 100, while described the can also be removed The impurity of 25 surrounding of one bearing 24 and the second bearing reduces the first bearing 24, second bearing 25 and the drive shaft Abrasion between 21 reduces influence to the first bearing, second bearing concentricity, to reduce the drive shaft 21 and the Abnormal vibration between one bearing 24, second bearing 25, reduces noise.Water flows in the first chamber 213 of the drive shaft 21 It is logical, cooling effect can be played to the rotor assembly 22, reduces the temperature of the pump 100, improve the work of the pump 100 Efficiency.

It is used herein such as "upper", "lower", "left", "right", "front", "rear", representation space relative position term It is to describe relationship of the feature relative to another feature as shown in the drawings for the purpose convenient for explanation.It can manage Solution, according to the difference of product placement position, the term of relative space position can be intended to include other than orientation as shown in the figure Different direction, should not be interpreted as limitations on claims.In addition, descriptor "horizontal" used herein and non-fully It is equal to along the inclination for perpendicular to gravity direction, allowing to have certain angle.

In addition, above embodiments are merely to illustrate the present invention and not limit the technical scheme described by the invention, to this The understanding of specification should be based on person of ordinary skill in the field, although this specification is referring to the above embodiments pair Present invention has been detailed description, still, those skilled in the art should understand that, the technology of technical field Personnel still can modify or equivalently replace the present invention, and all do not depart from the technology of the spirit and scope of the present invention Scheme and its improvement should all be covered in scope of the presently claimed invention.

Claims (10)

1. a kind of pump, which is characterized in that including driving device, the impeller that is mounted on described driving device one end and mask be in institute The pump case of impeller periphery is stated, the driving device turns equipped with drive shaft, the rotor assembly for being sheathed on the drive shaft, positioned at described The field frame assembly of sub- assembly periphery and the bearing for being placed in the drive shaft and being located at the rotor assembly both ends, it is described Drive shaft is equipped with axial wall and the axially extending first chamber in the axial wall, the axial wall be equipped with radially penetrate through to A few Drainage Division, the impeller are equipped with the water inlet positioned at the impeller center, and the pump case, which is equipped with, accommodates the impeller Second chamber, the first chamber are connected with the second chamber by the water inlet.

2. pump as described in claim 1, it is characterised in that: projection and institute of the bearing along the radial direction of the drive shaft The projection for stating Drainage Division is least partially overlapped.

3. pump as described in claim 1, it is characterised in that: the Drainage Division is at least one for radially penetrating through the axial wall The projection of drainage hole, the drainage hole is least partially overlapped with the projection of the bearing.

4. pump as described in claim 1, it is characterised in that: the pump includes the first bearing and the set on rotor assembly both ends Two bearings, the Drainage Division include the first Drainage Division and the second Drainage Division, radially, the projection of first Drainage Division with The projection of the first bearing is least partially overlapped, the projection of second Drainage Division and the projection at least portion of the second bearing Divide overlapping.

5. pump as described in claim 1, it is characterised in that: the pump further includes being set to the first bearing and the impeller Between bracket, the branch is provided with the third chamber that collecting post states first bearing, and the first bearing is fixed on the third In chamber.

6. pump as described in claim 1, it is characterised in that: the pump is additionally provided with to by the rotor assembly and the stator The water diversion disk that assembly separates, the water diversion disk are equipped with the annular and separation wall extended to form up and down, are located at the annular and separation wall right side 4th chamber of side, the wall extension extended to form to the right from the annular and separation wall close to the inside edge of the drive shaft side And the 5th chamber in the wall extension, the rotor assembly are housed in the 5th chamber, the stator is total Cheng Ze is housed in the 4th chamber.

7. pump as described in claim 1, it is characterised in that: the pump case is equipped with input duct, to accommodate the impeller Second chamber and the liquid outlet pipe being connected to the second chamber, the input duct are axially connected to the second chamber, institute State second chamber described in liquid outlet pipe radial communication.

8. pump as described in claim 1, it is characterised in that: form the 6th chamber, institute among the pump case and the impeller Pump is stated to be additionally provided with to the heating device to the 6th chamber indoor liquid heating.

9. pump as claimed in claim 3, it is characterised in that: the shape of the drainage hole can be in strip, circle, square One kind or both cooperation one kind or three's cooperation one kind.

10. a kind of washing facility, it is characterised in that: there are pump and washing cavities, the liquid outlet pipe of the pump and the washing cavities connect Logical, the pump further includes the pump as described in any one of claim 1-9.