CN208153330U - Pump and washing facility - Google Patents

Abstract

The utility model provides a kind of pump and washing facility, the pump includes driving device, is mounted on the pump case of the impeller and mask of described driving device one end on the outside of the impeller, the driving device is equipped with drive shaft, the impeller is placed on the drive shaft, the pump, which is equipped with, to be fixed on the housing of described driving device one end periphery and protrudes outward the mounting post of extension from the housing middle position, the mounting post be equipped with axially through cavity.So set, the driving device is made to be convenient for forming convection current with outside air, to be conducive to motor radiating, reduce motor temperature.

Description

Pump and washing facility

Technical field

The utility model relates to a kind of household appliance technical field more particularly to the pumps and washing facility of a kind of small volume.

Background technique

Current injecting type dish-washing machine forms high temperature and pressure by pump, heating tube and swing arm and sprays water in dishwashing procedure Stream carries out mechanical erosion to tableware surface, and detergent is saponified and decomposed to tableware surface greasy dirt, residue, and hot water is to more than food Slag carry out impregnate splashing, so that tableware surface greasy dirt, residue and food recrement is decomposed and is fallen off rapidly, tableware surface reappear cleaning with It is bright.

Pump is important component in dish-washing machine, and structure will affect dish-washing machine space size layout.As market is by cabinet Formula machine develops to desktop computer, drawer machine, and to dishwasher structure, higher requirements are also raised.Pump in the related technology is by mounting post The side of pump drive shaft is set, however, so set, being easy to make the centre-of gravity shift of pump, to cause installation built on the sand.

Utility model content

Stable pump and washing facility are installed the purpose of this utility model is to provide a kind of.

To achieve the above object, the utility model adopts the following technical solution：A kind of pump, including driving device, be mounted on Pump case of the impeller and mask of described driving device one end on the outside of the impeller, the driving device are equipped with drive shaft, institute It states impeller and is placed on the drive shaft, the pump is equipped with the housing for being fixed on described driving device one end periphery and from the housing Middle position protrudes outward the mounting post of extension, the mounting post be equipped with axially through cavity.

As the further improved technical solution of the utility model, the mounting post is from the housing to far from the impeller Direction protrusion extend to form, the mounting post central axis is conllinear with the central axis of the drive shaft.

As the further improved technical solution of the utility model, the mounting post is equipped with the connection connecting with the shell Hold, continue end made of extending from the connecting pin and protrude outward from the outer peripheral surface of the end at least one of extension Holding part.

As the further improved technical solution of the utility model, the mounting post is equipped with two institutes being symmetrically set Holding part is stated, the holding part is barb-like setting.

As the further improved technical solution of the utility model, the holding part is be set to the mounting post described The fit structure of end.

As the further improved technical solution of the utility model, the pump case is equipped with to be prolonged along the drive shaft axial direction Input duct, the chamber to accommodate the impeller and the liquid outlet pipe with the chamber stretched, the input duct Central axes it is conllinear with the central axes of the mounting post and the drive shaft.

As the further improved technical solution of the utility model, the driving device is equipped with the drive shaft, is wound around The rotor assembly and field frame assembly of the drive shaft periphery.

As the further improved technical solution of the utility model, the pump is additionally provided with to by the rotor assembly and institute It states the liquid separation disk of field frame assembly separation and axially engages the bracket of buckle with the liquid separation disk.

As the further improved technical solution of the utility model, the liquid separation disk is equipped with annular and separation wall, positioned at described Bit space is allowed on the right side of annular and separation wall, and the field frame assembly is housed in described allow in bit space.

The utility model also provides a kind of washing facility, and the washing facility includes aforementioned pump.

It is from the above technical scheme, described to pump the intermediate position that mounting post is in axial direction set to the housing, The central axis of the cavity is conllinear with the central axis of the drive shaft, so that steadily of centre of gravity does not deviate entire pump during installation, pacifies Dress is stablized；It will be in communication with the outside in pump by the cavity of perforation simultaneously, so that the heat that the driving device of the pump generates passes through Cavity is dissipated to the external world, is radiated to be conducive to driving device, and the temperature of pump is reduced.

Detailed description of the invention

Fig. 1 is that the utility model pumps stereoscopic schematic diagram.

Fig. 2 is the stereoscopic schematic diagram of another angle of the utility model.

Fig. 3 is the diagrammatic cross-section of the utility model.

Fig. 4 is the stereoscopic schematic diagram of the bracket of the utility model.

Fig. 5 is the structural schematic diagram of the barb of the utility model.

Appended drawing reference：100- pump；1- pump case；10- chamber；11- input duct；The convergence part 12-；13- cavity wall；14- goes out liquid Pipeline；2- driving device；21- drive shaft；22- rotor assembly；23- field frame assembly；231- stator core；232- stator winding； 24- first bearing；25- second bearing；3- liquid separation disk；30- allows bit space；31- annular and separation wall；310- resigning chamber；311- is convex Platform；4- fixed frame；41- mounting post；411- cavity；412- outer peripheral surface；413- holding part；42- housing；5- impeller；6- bracket； 60- accommodating cavity；The discoid cylinder of 61-；62- endless wall；621- inner wall；622- outside wall surface；620- anti-rotation groove；623- is convex Block；7-O ring；8-O shape sealing ring.

Specific embodiment

In order to keep the purpose of this utility model, technical solution and advantage clearer, with reference to the accompanying drawing and it is embodied The present invention will be described in detail for example.

It please refers to shown in Fig. 1 to Fig. 5, the utility model discloses a kind of washing facility, and the washing facility can be pumping The mini-dishwashers such as drawer formula dish-washing machine, water tank type dish-washing machine, or washing machine.The washing facility is equipped with a kind of pump 100, The pump 100 is horizontal pump, including driving device 2, the liquid separation disk 3 that is mounted on 2 left end of driving device, is mounted on the drive The pump of the fixed frame 4 of dynamic 2 right end of device, the impeller 5 for being mounted on 3 left side of liquid separation disk and mask in 5 outside of impeller Shell 1, the pump case 1 are equipped with the chamber 10 for accommodating the impeller 5.

The driving device 2 is that can include control institute with the DC brushless motor of positive and negative rotation, the DC brushless motor 2 The control circuit (not shown) for stating the operation of driving device 2, the drive shaft 21 being electrically connected to the control circuit and the drive shaft Rotor assembly 22, field frame assembly 23 and 24 and of first bearing for being set in 21 left and right ends of drive shaft of 21 electrical connections Second bearing 25.The impeller 5 is fixed on the left end of the drive shaft 21, and is welding in the drive shaft 21 by plastics.

The liquid separation disk 3 is equipped with the annular and separation wall 31 extended to form up and down, positioned at 31 right side of annular and separation wall Allow bit space 30, the cylinder that extends to form to the right from the annular and separation wall 31 close to the inside edge of 21 side of drive shaft Shape resigning chamber 310.The rotor assembly 22 is housed in the resigning chamber 310.The annular and separation wall 31 is additionally provided with from institute State outer edge of the annular and separation wall 31 far from 21 side of the drive shaft prominent boss 311 extended to form to the left.The boss 311 are equipped in axial direction protruding part (not labeled) outstanding, the boss on the side side wall close to the drive shaft 21 311 are additionally provided with several clasp slots (not shown) on the side wall of 21 side of drive shaft, and the clasp slot is to far from described 21 direction of drive shaft is recessed to be formed.The field frame assembly 23 is then housed in described allow in bit space 30.In present embodiment, institute It states field frame assembly 23 and is equipped with the stator core 231 positioned at periphery and the stator winding in the stator core 231 232.The stator core 231 forms the circumference (not labeled) with first diameter around the drive shaft 21.The liquid separation Mask is in 23 outside of field frame assembly in left-right direction for the annular and separation wall 21 of disk 3, thus by the field frame assembly 23 and chamber Divide the electricity separation to realize the field frame assembly 23 and the chamber 10 in room 10；Meanwhile where the annular and separation wall 31 Circumference have second diameter, the second diameter be less than or equal to the first diameter, so set, making the pump It is compact-sized between 100 part, realize the purpose of 100 miniaturization of pump.

The pump 100 is additionally provided with the bracket 6 and be mounted on the bracket 6 and institute that one is mounted on the liquid separation disk 3 State the O ring 7 between liquid separation disk 3.The O ring 7 is O-ring seal.

It please join shown in Fig. 3 and Fig. 4, the bracket 6 is equipped with the disk-shaped main body 61 extended up and down, runs through positioned at intermediate position The accommodating cavity 60 of the disk-shaped main body 61, and the endless wall 62 extended to the right from the disk-shaped main body right lateral surface. The accommodating cavity 60 is connected to the resigning chamber 310 and their own central axis is conllinear.The endless wall 62 with it is described The 31 mutual cooperation clamping of annular and separation wall of liquid separation disk 3 is by the chamber 10 and 22 electricity separation of rotor assembly.The ring Shape wall body 62 is equipped with towards the inner wall 621 of the accommodating cavity 60, the outside wall surface 622 opposite with the inner wall 621 to described 621 direction of inner wall is recessed the anti-rotation groove 620 to be formed and from the outwardly projecting several convex blocks 623 of the outside wall surface 622.It is described Anti-rotation groove 620 through the endless wall 62 and reaches secure fit with the protruding part clamping on the boss 311 to the right.Institute It states several convex blocks 623 and respectively corresponds clasp in each clasp slot, so set, when the impeller 5 is high-speed rotating It waits, also can be realized the secure fit and relative limit between liquid separation disk 3 and the bracket 6.In other embodiments, described Boss 311 can be set on the bracket 6, and the anti-rotation groove 620 also can be set on the liquid separation disk 3.Equally can Achieve the effect that liquid separation disk and bracket secure fit and relative limit.

The first bearing 24 is nested in the left end of the drive shaft 21, and is located at the bracket 6 and the liquid separation disk Between 3, the O ring 7 is to be supported the first bearing 24 in 3 left side of liquid separation disk.The first bearing 24 Left end is housed in the accommodating cavity 60 of the bracket 6.The second bearing 25 be nested with the drive shaft 21 right end and The resigning for being located at the liquid separation disk 3 is intracavitary.Third sealing is again provided between the liquid separation disk 3 and the second bearing 25 (not labeled) is enclosed to reach to the support between the liquid separation disk 3 and the second bearing 25.

The pump case 1 is equipped with the input duct 11 along the axially extending formation of the drive shaft 21, from the input duct 11 Convergence part 12 that right end axially outwardly extends, mask are in the cavity wall 13 of 10 periphery of chamber, radially connected with the cavity wall 13 And the liquid outlet pipe 14 being connected to the chamber 10 and the outer rim being clasped with the liquid separation disk 3.The outer rim with it is described An O-ring seal 8 is additionally provided between liquid separation disk 3, the O-ring seal 8 is to seal the pump case 1, to prevent chamber 10 Interior liquid leaks out.In present embodiment, along the radial direction of the drive shaft 21, the O-ring seal 8 is arranged on Between the outer rim and the boss 311 of the liquid separation disk 3, in left-right direction, the O-ring seal 8 is arranged on the bracket 6 Disk-shaped main body 61 right side.That is, direction sticks on the medial surface of the outer rim, institute to the O-ring seal 8 radially outside Stating O type sealing ring 8, radially inside direction sticks on the outside of the boss 311.By the pump case 1 by with the branch When frame 6 and the liquid separation disk 3 are sealed, the O-ring seal 8 is radially compacted deformation, to realize the pump Sealing between shell 1 and the liquid separation disk 3 radially.So set, also reduce it is described pump 100 radial direction volume, Entirety makes the pump 100 compact-sized.The center line axis of the input duct 11 and the central axis of the drive shaft 21 are total Line.The impeller 5 is housed in the chamber 10.In the present embodiment, helical pattern is prolonged from left to right for the convergence part 12 Stretch the connection cavity wall 13.The cavity wall 13 is annular in shape around the drive shaft 21, and along the radial direction of the drive shaft 21, The radius of the 13 place circumference of cavity wall remains unchanged.Incorporated by reference to shown in Fig. 3, the axis of the chamber 10 from bottom to top vertically It is rotated to depth around the drive shaft 21 and gradually side length, the axial depth are the length extended from left to right in Fig. 3.It changes Yan Zhi, along the axial direction, helically formula is arranged the chamber 10.So set, making in the chamber 10 of pump case 1 in impeller 5 High speed rotation can be realized higher pressure head when driving water flow, so that washes is able to quick discharge pump 100.

The fixed frame 4 is axial to be set to described 2 one end of driving device.The fixed frame 4 is used for the pump 100 is axial solid It is scheduled in the shell of foregoing dish washer.The fixed frame 4 includes housing 42 and position of the mask in 231 periphery of stator core In the mounting post 41 that 42 middle position of housing extends along the axial direction of the drive shaft 21 to the right, in present embodiment In, the middle position refers to the corresponding pump case position of the position of centre of gravity of motor or pump case bottom centre position.When the cover When shell 42 is round, the central axes of the mounting post 41 are located at the center point of the housing 42, when the housing 42 is rectangle When, the central axes of the mounting post 41 are located at the 42 diagonal line point of intersection of housing.The mounting post 41 is hollow cylinder knot Structure, equipped with the cavity 411 in axial direction extended, the cavity 411 is in communication with the outside.So set, the driving is facilitated to fill The heat for setting 2 operations generation is dissipated outward by the cavity 411, the temperature accelerated cross-ventilation, reduce driving device 2.Knot It closes shown in Fig. 1 and Fig. 2, the middle position of the mounting post 41 from the housing 42 extends outwardly, the mounting post 41 Central axis, the drive shaft 21 central axis and the input duct 11 central axis it is conllinear, meanwhile, the peace The diameter for filling column 41 is greater than the diameter of the second bearing 25.100 endurance of pump increases, and makes the whole center of gravity of the pump 100 Stablize, installation is more stable, and the whole height of the pump 100 described in the radial direction in the pump 100 reduces, to reduce The 100 occupied space in the height direction of pump.Certainly, in other embodiments, the central axis of the mounting post 41 Line can also be slightly away from the central axis setting of the drive shaft up and down.The mounting post 41 is equipped with and connect with the housing 42 Connecting pin (not labeled) and with the opposite end of the connection, the end be equipped with the inner peripheral surface towards the cavity 411, with The opposite outer peripheral surface 412 of the inner peripheral surface and at least one holding part 413 that setting is protruded outward from the outer peripheral surface 412. In the present embodiment, the holding part 413 is barb-like setting, and is symmetrically arranged with two on the outer peripheral surface of the end 412 A holding part 413.In other embodiments, the quantity of the holding part 413 can be greater than 2, when the holding part 413 Quantity be even number when, the preferably described holding part 413 is symmetrically disposed on two-by-two on the outer peripheral surface 412 of the end, to make institute It states stronger with fit structure cooperation in dish-washing machine when pump 100 is mounted in dish-washing machine.In other embodiments, the button Holding portion 413 is the fit structure for being set to 41 end of mounting post, and the fit structure is the fastening knot with fastening effect Structure, the fastening structure can be to be set to the helicitic texture of the 41 end outer peripheral surface of mounting post either from outside the end Sunk structure made of circumferential surface recess cooperates when the pump 100 is mounted in dish-washing machine with fit structure in dish-washing machine.

In conclusion mounting post 41 is in axial direction set to the housing 42 by pump 100 described in the utility model Intermediate position, the central axis of the cavity 411 is conllinear with the central axis of the drive shaft 21, so that entirely pumping 100 during installation Steadily of centre of gravity does not deviate, and installation is stablized；It will be pumped in 100 and be in communication with the outside by the cavity 411 of perforation simultaneously, so that the pump The heat that 100 driving device 2 generates is dissipated by cavity 411 to the external world, is radiated to be conducive to driving device 2, is made pump 100 Temperature reduces.

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 utility model and not limit technical side described in the utility model Case, understanding of this description should be based on persons of ordinary skill in the field, although this specification is referring to above-mentioned Embodiment has been carried out detailed description to the utility model, still, those skilled in the art should understand that, affiliated skill The technical staff in art field still can be modified or replaced equivalently the utility model, and all not depart from this practical new The technical solution and its improvement of the spirit and scope of type, should all cover in the scope of the claims of the utility model.

Claims (10)

1. a kind of pump, including driving device, the impeller that is mounted on described driving device one end and mask be on the outside of the impeller Pump case, the driving device is equipped with drive shaft, and the impeller is placed on the drive shaft, which is characterized in that the pump is equipped with It is fixed on the housing of described driving device one end periphery and protrudes outward the mounting post of extension from the housing middle position, it is described Mounting post be equipped with axially through cavity.

2. pump as described in claim 1, it is characterised in that：The mounting post is from the housing to the direction far from the impeller Protrusion extends to form, and the mounting post central axis is conllinear with the central axis of the drive shaft.

3. pump as described in claim 1, it is characterised in that：The mounting post is equipped with the connecting pin connecting with the shell, from institute Connecting pin is stated to continue end made of extending and protrude outward at least one holding part of extension from the outer peripheral surface of the end.

4. pump as claimed in claim 3, it is characterised in that：The mounting post is equipped with two clasps being symmetrically set Portion, the holding part are barb-like setting.

5. pump as claimed in claim 3, it is characterised in that：The holding part is the end for being set to the mounting post Fit structure.

6. pump as described in claim 1, it is characterised in that：The pump case be equipped with along the drive shaft axial direction extend into Liquid pipe road, the chamber to accommodate the impeller and the liquid outlet pipe with the chamber, the axis of the input duct Line is conllinear with the central axes of the mounting post and the drive shaft.

7. pump as described in claim 1, it is characterised in that：The driving device is equipped with the drive shaft, is wound around the drive The rotor assembly and field frame assembly of moving axis periphery.

8. pump as claimed in claim 7, it is characterised in that：The pump is additionally provided with to by the rotor assembly and the stator The liquid separation disk of assembly separation and the bracket that buckle is axially engaged with the liquid separation disk.

9. pump as claimed in claim 8, it is characterised in that：The liquid separation disk is equipped with annular and separation wall, is located at the annular point Bit space is allowed on the right side of next door, and the field frame assembly is housed in described allow in bit space.

10. a kind of washing facility, it is characterised in that：Including the pump as described in any one of claim 1-9.