CN110145447A - A kind of Handheld high-voltage cleaning machine motor pump unit and Handheld high-voltage cleaning machine - Google Patents
A kind of Handheld high-voltage cleaning machine motor pump unit and Handheld high-voltage cleaning machine Download PDFInfo
- Publication number
- CN110145447A CN110145447A CN201910353066.1A CN201910353066A CN110145447A CN 110145447 A CN110145447 A CN 110145447A CN 201910353066 A CN201910353066 A CN 201910353066A CN 110145447 A CN110145447 A CN 110145447A
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- Prior art keywords
- pump
- casing
- motor
- cleaning machine
- handheld high
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
- B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/08—Cooling; Heating; Preventing freezing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Motor Or Generator Frames (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The present invention discloses a kind of Handheld high-voltage cleaning machine, motor pump unit includes: micromotor, and motor includes electric machine casing, motor shaft, rotor and stator core, and rotor is mounted on motor shaft, stator core is located at rotor exterior, and rotor and stator core are set in electric machine casing；Mini-pump includes pump case and pump water inlet mouth and high-pressure outlet in pump case；Electric machine casing has a seal chamber I and the inner casing positioned at seal chamber I inner ring, and stator core is close to inner casing and forms thermal conduction path；Electric machine casing is equipped at least one cooling duct I, a water inlet I and a water outlet I；Water inlet I connection external water source, water outlet I are connected with pump water inlet mouth；Pump case is equipped at least one cooling duct II, a water inlet II and a water outlet II；Water inlet II connection external water source or water outlet I, water outlet II connection pump water inlet mouth.The invention has the benefit that motor and the waterproofing grade of complete machine can achieve IPX7 even higher, machine more secure and reliable.
Description
Technical field
The invention belongs to hand-hold washer technical fields, and in particular to a kind of Handheld high-voltage cleaning machine electric-motor pump list
Member and Handheld high-voltage cleaning machine.
Background technique
Jetting machine is a kind of using water or the mixed liquor added with cleaning agent is cleansing medium, is realized using high pressure water flow
The equipment of body surface cleaning, jetting machine can be used to clean automobile, garden, ground, railing, door and window etc., use compared with
Be it is efficient and conveniently, mainly composition has a spray gun and host, and host includes motor, pump and battery or circumscripted power line, spray gun and
It is connected between host by water pipe, spray gun is responsible for forming water flow of different shapes according to actual needs, and host is responsible for the city Shui Cong
High pressure water flow is converted into political affairs tap water or bucket to be delivered in spray gun, it is common for host fixed placement or removable on the ground
Dynamic to place, host volume is larger, heavier-weight, and use process works by spray gun, and use scope is subject to certain restrictions, and is grasped
Make to get up and still has many inconvenient places.
Patent US20090045271A1 discloses a kind of hand electric pressure washer, including pump 16, motor 14, casing
20, and the handle 62 and side handle 68 that are connected with casing 20, nozzle 58 is connected to casing 20 by barral of a gun 54, and the patent is practical
Disclose a kind of cleaning machine of low-pressure, pressure is unable to reach jetting machine requirement, because clearly will in international standard
Jetting machine is defined as operating pressure more than or equal to 2.5MPa, in actual use operating pressure only more than 2.5MPa when could
Reach high-pressure wash purpose, Handheld high-voltage cleaning machine waterproof etc. is corresponded to since jetting machine is directly contacted with water, in standard
Grade requires to be not less than IPX7, it is desirable that machine is placed in can work the short time under water.The technology disclosed in the patent US20090045271A1
Scheme can be seen that 14 tail portion of motor equipped with cooling fan blade 18, and 20 corresponding position of casing is equipped with several ventilation openings 22, ventilation opening 22
Presence make the waterproofing grade of the hand electric pressure washer be not achieved the requirement of hand-held jetting machine, temperature rise and make an uproar
Sound cannot be controlled effectively.What is really needed in the market is a kind of hand-held jetting machine, and the cooling contradiction with waterproof of motor is
Unsolved industry problems always.
Patent CN205570600U also discloses a kind of hand-hold washer, and purpose is in the portability for promoting cleaning machine, solution
Certainly move convenience issue.The technical solution is that US20090045271A1 is logical with patent US20090045271A1 difference
It crosses power supply line 30 and connects external power supply, powered by external power supply to motor 14, and on CN205570600U machine include battery
170, it is battery powered, replaces external power supply with battery.It is equally that a kind of low pressure is clear disclosed in patent CN205570600U
Washing machine, not hand-held jetting machine, 2.5MPa pressure needed for operating pressure can not reach and exceed jetting machine,
CN205570600U does not disclose any motor cooling and waterproof sealing solution, providing nor Handheld high-voltage is clear
Washing machine can be seen that the presence in motor blade trailing cooling air port from CN205570600U Figure of description, and corresponding position must on casing
Ventilation opening must be reserved, waterproofing grade is unable to reach Handheld high-voltage cleaning machine waterproofing grade requirement, and there are high noise, no
The defects of waterproof and deficiency.
As hand-hold washer, motor and running at high speed for pump can all bring temperature sharply to increase, and not only pass through shell
User is passed to, high temperature scalds one's hand and seriously affects using comfort, and influences machine operational efficiency and service life.It is open simultaneously
Formula casing and motor operating and fan blade rotate the operation comfort that generated noise also directly influences user.
As it can be seen that designing a kind of conveniently moving, capable of being directly connected to that external water source, that pressure energy reaches high pressure is clear by water pipe
Washing machine requires, waterproofing grade meets hand-held jetting machine requirement, high cleaning capability, high operational efficiency, low temperature, mute hand-held
Formula jetting machine is particularly necessary.
Summary of the invention
It is an object of the invention to overcome deficiency in the prior art, a kind of Handheld high-voltage cleaning machine is provided, is had cold
But the feature that effect is good, running noises are low, cleaning pressure is high and waterproof ability is strong.
To solve prior art problem, the invention discloses a kind of Handheld high-voltage cleaning machine motor pump units, comprising:
Outer diameter is no more than the micromotor of 90mm, and micromotor includes electric machine casing, motor shaft, rotor and stator core, rotor installation
On motor shaft, stator core is located at rotor exterior, and rotor and stator core are set in electric machine casing；
Mini-pump includes pump case, pump water inlet mouth and high-pressure outlet；
Electric machine casing has a seal chamber I and inner casing, and the inner surface of inner casing is close to stator core and forms thermal conduction path；Motor casing
It is cooling logical by way of the cooling duct I of inner casing, the connection of water inlet I and one of the connection one end cooling duct I that body is equipped at least one
The water outlet I of the road I other end；Water inlet I connection external water source, water outlet I are connected with pump water inlet mouth；
Pump case is equipped at least one cooling duct II, the connection cooling of water inlet II and one of the connection one end cooling duct II is led to
The water outlet II of the road II other end；Water inlet II connection external water source or water outlet I, water outlet II connection pump water inlet mouth.
Further, when cooling duct I is more than two, electric machine casing is additionally provided with point of connection cooling duct I water inlet end
Circulation road and the busway for being connected to the cooling duct water outlet I.
Further, cooling duct I extends along the axis direction for being parallel to electric machine casing, and split channel edge is parallel to motor
The diametrical direction of shell extends, circumferentially extending of the busway along electric machine casing.
Further, electric machine casing includes the connected end cap and casing of axial seal, and casing is open at one end, another end seal
The tank-like body closed, end cap seal are mounted on the opening of casing, and end cap connects mini-pump；Water inlet I, cooling duct shunt and lead to
Road and busway are set on casing, and water outlet I is set on end cap.
Further, the opening of casing has along annular groove made of its circumferentially extending, and end cap and annular groove are tightly connected
After form busway.
Further, bearing II is installed, the centre bore of casing installs bearing I, the both ends of motor shaft in the centre bore of end cap
It is respectively arranged in bearing I and bearing I I；Split channel passes through from the casing outer vicinity of bearing I installation site.
Further, casing is integrated the structural body of machine-shaping.
Further, the outer surface of cooling duct I is equipped with several thermally conductive muscle I extended to the outer surface of electric machine casing.
Further, electric machine casing is equipped with the fairlead that power supply machine conducting wire is drawn, and motor wire seals at fairlead
Setting.
Further, micromotor is rare earth permanent magnet brushless motor, and the waterproofing grade of micromotor is not less than IPX7, mini
The minimum operating pressures that of pump is not less than 2.5Mpa.
Further, water inlet II is located at the proximal location apart from micromotor, and water outlet II is located at away from micromotor
Remote location；
When cooling duct II extends along the axis direction for being parallel to pump case, the cooling duct outer surface II is equipped with several extend to
The thermally conductive muscle II of pump case external surface；When cooling duct II extends along the circumferencial direction of pump case, the cooling duct outer surface II
Equipped with several thermally conductive muscle III for extending to pump case external surface.
Further, pump case includes front and back connection to form the pump head and pump case of seal chamber II, cooling duct II, water outlet
Mouth II and water inlet II is set on pump case.
Further, pump case is equipped with end cap close to one end of micromotor, and end cap is connect with micromotor.
Further, mini-pump is plunger pump, further includes at least one plunger and a swash plate, and plunger and swash plate are set to
In the seal chamber II of pump case, swash plate by micromotor driving and drive plunger to move along a straight line.
Further, mini-pump and micromotor are coaxially connected or connect at a certain angle.
Further, it is connected by a snap between the pump case of mini-pump and the electric machine casing of micromotor.
Further, deceleration mechanism is additionally provided between mini-pump and micromotor, deceleration mechanism is planet-gear speed reducer
Structure and be set to be connected in the end cap between mini-pump and micromotor.
The invention also discloses a kind of Handheld high-voltage cleaning machines, comprising: shell and spray gun；
It further include above-mentioned Handheld high-voltage cleaning machine motor pump unit, shell sealed envelope motor pump unit, spray gun connection
High-pressure outlet.
Further, shell has the receiving portion and hand-held part of integrally connected, and motor pump unit is set in receiving portion, holds
Portion is tilted along the direction away from receiving portion to be extended, and hand-held part is equipped with power switch.
Further, hand-held jetting machine further includes battery pack, and the voltage rating of battery pack is 18~60V；Battery pack
In hand-held part or separably in the anti-sump of hand-held part end, anti-sump is equipped with waterproof warehouse lid, and waterproof warehouse lid is logical
It crosses sealing strip and anti-sump is formed and sealed.
Further, hand-held jetting machine further includes battery pack, and the voltage rating of battery pack is 18~60V；Battery pack
It plugs and connects with the end part seal of hand-held part.
Further, the weight of Handheld high-voltage cleaning machine is no more than 4.2kg, and waterproofing grade is not less than IPX7.
The invention has the benefit that
1, in the present invention, micromotor is existing air-cooled using water cooling substitution, thus can pass through Seal Design (i.e. nothing on shell
Any air port) so that motor and the waterproofing grade of complete machine is can achieve IPX7 even higher, to keep machine more safe and reliable, accord with
The waterproof requirement for closing Handheld high-voltage cleaning machine is carrying out water cooling to the pump housing simultaneously to motor water cooling, is further decreasing the temperature of pump
Degree, so that whole temperature rise reduces, machine life obtains Synchronous lifting.
2, in the present invention, motor is cooled down using noncirculating water, and cooling effect greatly promotes, and motor temperature obviously drops
Low, the motor feels hot, and problem is effectively solved, and electric efficiency is promoted, and is consumed output pressure and flow under same power and is obtained
It being promoted, discharge pressure can achieve even more than 2.5MPa, significantly improve cleaning ability, on the basis of more easily, application
Range is also widened.
3, in the present invention, for magneto or rare earth permanent magnet brushless motor, after water-cooling project, motor permanent-magnet material
Temperature is controlled very well, is efficiently solved the problems, such as the high temperature demagnetization of permanent magnet or rare earth permanent-magnetic material, is effectively prevent irreversible
Demagnetization cause motor failure, motor reliability is largely increased.
4, in the present invention, after motor uses water cooling, exempt fan blade noise, since electric machine casing is closed, and shell
Upper no any into and out of air port, machine becomes more mute, and volume is more compact, effectively prevent injury of the noise to people.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of a preferred embodiment in the present invention；
Fig. 2 is the structural perspective of motor pump unit in embodiment illustrated in fig. 1；
Fig. 3 is the structural front view (motor and mini-pump discrete state) of motor pump unit in embodiment illustrated in fig. 1；
Fig. 4 is the structural front view (motor and mini-pump connection status) of motor pump unit in embodiment illustrated in fig. 1；
Fig. 5 is the structure right view of motor pump unit in embodiment illustrated in fig. 1；
Fig. 6 is the structure sectional view of motor pump unit in embodiment illustrated in fig. 1；
Fig. 7 is the cross-sectional view in Fig. 6 along hatching AA；
Fig. 8 is the cross-sectional view in Fig. 6 along hatching BB；
Fig. 9 is the structural perspective of pump case in embodiment illustrated in fig. 1；
Figure 10 is the three-dimensional cutaway view of motor in embodiment illustrated in fig. 1；
Figure 11 is the partial enlarged view in Figure 10 at C.
Appended drawing reference:
1 plunger；2 seal chamber II；3 pump cases；4 deceleration mechanisms；5 end caps；6 casings；7 stator cores；8 rotors；9 motor shafts；10 connect
Adapter tube；11 bearing Is；12 bearing I I；13 pump water inlet mouths；14 high-pressure outlets；15 split channels；16 thermally conductive muscle III；17 is cooling logical
Road I；18 busways；19 water inlet I；20 motor pump units；21 mini-pumps；22 micromotors；23 water outlet I；24 is cooling logical
Road II；25 water inlet II；26 water outlet II；27 water outlet connectors；28 connection pipe fittings；29 electric machine casings；30 seal chamber I；31 lead
Hot muscle I；32 thermally conductive muscle II；33 swash plates；34 buckles；35 Handheld high-voltage cleaning machines；36 shells；37 hand-held parts；38 spray guns；39 electricity
Chi Bao；40 anti-sump；41 waterproof warehouse lids；42 sealing strips；43 pump heads；44 power switches；45 water supply connector sealing rings；46 water inlets connect
Head；47 water inlet pipe connectors；48 water inlet pipes；49 first sealing rings；50 second sealing rings；51 motor wires；52 inner casings；53 end caps
Inner wall；54 end cap outer walls；56 shell outer walls；57 water outlet connector sealing rings；58 pump cases；59 annular grooves；60 receiving portions；Arrow in figure
Indicated direction is water (flow) direction.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
As shown in Fig. 1 to 11, a kind of Handheld high-voltage cleaning machine 35, comprising: spray gun 38, motor pump unit 20 and shell
36,36 sealed envelope motor pump unit 20 of shell.
Motor pump unit 20 includes the micromotor 22 that mini-pump 21 and outer diameter are no more than 90mm, micromotor 22 with it is mini
Pump 21 is connected that mini-pump 21 is driven to work, on the one hand connection herein refers to micromotor 22 and mini-pump 21 in structure
It needs to connect the fixation realized in shell 36, on the other hand refers to that micromotor 22 needs to connect reality on power with mini-pump 21
The transmitting of existing torque.
Mini-pump 21 has pump water inlet mouth 13 and high-pressure outlet 14.High-pressure outlet 14 connects spray gun 38 thus by high pressure
Water flow is sprayed in the form of certain, realizes the adjusting of clean range.
Micromotor 22 includes electric machine casing 29；Installation motor shaft 9, rotor 8 and stator core 7 in electric machine casing 29；Electricity
The both ends of arbor 9 pass through a bearing I 11 respectively and bearing I I12 is rotatably installed in electric machine casing 29, and rotor 8 is mounted on motor
To transmit torque on axis 9, stator core 7 is located at outside rotor 8, and generating torque by electromagnetic principle rotates rotor 8.Motor
Shell 29 has a seal chamber I30 and inner casing 52, which is centered around the periphery of stator core 7 and keeps stator core 7 tight
To form thermal conduction path, therefore the heat that stator core 7 generates is transmitted on inner casing 52 in order to subsequent patch inner casing 52
Heat dissipation.
In order to realize the purpose of water-cooling, electric machine casing 29 is equipped at least one by way of inner casing 52, especially its appearance
The cooling duct I17 in face, a water inlet I19 and one for being connected to the one end cooling duct I17 are connected to going out for the cooling duct I17 other end
It, can by water supply connector 46 by sealing one water supply connector 46 of installation of water supply connector sealing ring 45 at mouth of a river I23, water inlet I19
It is connect with realizing with the water inlet pipe connector 47 of water inlet pipe 48.
The other end of water inlet pipe 48 connects external water source, is gone out at water outlet I23 by the installation of water outlet connector sealing ring 57 one
Water swivel 27, water outlet connector 27 can be directly connected with pump water inlet mouth 13 by connecting tube 10.The ejected wash water of external water source exists
First it is used as cooling water to absorb the heat being transmitted on inner casing 52 from stator core 7 in the I17 of cooling duct when not pressurizeing, then
It enters back into mini-pump 21 and be pressed to form cleaning high pressure water flow used.Due to making shell 36 whole using water-cooling pattern
Without air-cooled opening, it can be fully sealed and reach higher waterproofing grade IPX7, meet the standard of hand-held jetting machine.This
Outside, since the cooling capacity of water-cooling pattern gets a promotion, the power of micromotor 22 also available promotion, so that mini
The discharge pressure of pump 21 reaches high voltage standard, that is, is not less than 2.5MPa, greatly improves cleaning ability.
In order to further enhance cooling capacity, two or more is can be set in the number of cooling duct I17, at this time for convenience
Inlet and outlet water, the split channel 15 that electric machine casing 29 is additionally provided with connection cooling duct I17 water inlet end are discharged with cooling duct I17 is connected to
The busway 18 at end.Cooling water enters split channel 15 through water inlet I19, is then diverted to each cooling duct I17 again
In electric machine casing 29 is cooled down, then again by busway 18 collect after be discharged in mini-pump 21 from water outlet I23.
In order to guarantee cooling effect and manufacture easy to process, electric machine casing 29 includes that axial seal is connected to form sealing
The end cap 5 and casing 6 of chamber I30, casing 6 are open at one end, other end closing and are integrally machined molding tank-like body, end cap 5
It is sealingly mounted at the opening of casing 6, end cap 5 connect to realize that the connection of motor 29 and mini-pump 21 is solid with mini-pump 21
It is fixed.End cap 5 is close to mini-pump 21, and casing 6 is far from mini-pump 21；Water inlet I19, cooling duct 17, split channel 15 and confluence
Channel 18 is set on casing 6, and water outlet I23 is set on end cap 5.As a kind of typical frame mode, the cooling duct edge I17
The axis direction for being parallel to casing 6 extends, and split channel 15 extends along the diametrical direction for being parallel to casing 6,18 edge of busway
The circumferentially extending of casing 6.
Since electric machine casing 29 takes axial split type structure, busway 18 be can be arranged such that, such as Figure 10 and
Shown in 11, the opening of casing 6 has along annular groove 59 made of its circumferentially extending, and the inside of annular groove 59 is inner casing 52, outside
A circle shell outer wall 56 is formed, similarly, end cap 5 also has a circle end cap inner wall 53 and a circle end cap outer wall 54, end cap inner wall 53
It is formed and is tightly connected with inner casing 52 by the first sealing ring 49, end cap outer wall 54 passes through the second sealing ring 50 and the formation of shell outer wall 56
It is tightly connected, by being tightly connected the busway 18 for making annular groove 59 form Cooling Water flowing.
In order to realize the installation of motor shaft 9, bearing II12, the centre bore installation axle of casing 6 are installed in the centre bore of end cap 5
I11 is held, the both ends of motor shaft 9 are respectively arranged in bearing I 11 and bearing I I12.
Due to there is the position for being not provided with cooling duct I17 on electric machine casing 29, in order to realize that these positions can dissipate
Heat, the outer surface of cooling duct I17 are equipped with several thermally conductive muscle I31 extended to the outer surface of electric machine casing 29, and thermally conductive muscle I31 can
To extend on casing 6, also extend on end cap 5 to realize further increasing for cooling capacity.
In order to improve the pressure capacity of mini-pump 21, deceleration mechanism 4 is equipped between mini-pump 21 and micromotor 22.End cap
Therefore 5 have an accommodating chamber for cylindrical-shaped structure, deceleration mechanism 4 is set in the accommodating chamber of end cap 5.Deceleration mechanism 4 is planet tooth
Take turns deceleration mechanism.Micromotor 22 is rare earth permanent magnet brushless motor.
In order to further increase the cooling capacity of motor pump unit 20, mini-pump 21 also takes water-cooling pattern to radiate.
Specifically, mini-pump 21 is plunger pump comprising at least one plunger 1, a swash plate 33 and a pump case 58, preferably there are three columns
Plug 1.There is pump case 58 a seal chamber II2, seal chamber II2 to accommodate plunger 1, swash plate 33 and lubricating and cooling agent, and plunger 1 is in plunger
Intracavitary reciprocating motion, the disk sliding contact of one end and swash plate 33 in seal chamber II2, swash plate 33 is by micromotor 22
It drives and plunger 1 is driven to move along a straight line.
Pump case 58 be equipped at least one cooling duct II24, one connection the one end cooling duct II24 water inlet II25 and
The water outlet II26 of the one connection cooling duct II24 other end, water inlet II25 can be directly connected to external water by water inlet pipe 48
Source can also connect the water outlet I23 by water outlet connector 27, and when using latter approach connection, water outlet I23 is not necessarily to
Pump water inlet mouth 13 is connected by connecting tube 10.The connection pipe fitting 18 of water outlet II26 connection connecting tube 10 makes cooling water pass through company
Adapter tube 10 enters pump water inlet mouth 11.Water flow enters in the II24 of cooling duct by water inlet pipe 48, and mini-pump 21 is in the process of running
Due to internal mechanical part operate and generate heat can be conducted by lubricating and cooling agent to pump case 58, then conduct again to
On the II24 of cooling duct, the cooling water finally flowed in it is taken away, and realizes the heat dissipation of higher efficiency.
When micromotor 22 and mini-pump 21 are all made of water-cooling pattern heat dissipation, cooling water can independently enter cooling duct
It radiates, can also successively enter in cooling duct I17 and cooling duct II24 to the two simultaneously in I17 and cooling duct II24
Successively radiate to the two.
Pump case 58 includes that front and back is connected to form the pump head 43 and pump case 3 of seal chamber II2, cooling duct II24, water inlet
Mouth II25 and water outlet II26 is set on pump case 3.The various valves of installation and plunger 13 in pump head 43, pump case 3 is interior to install swash plate 14.
Water inlet II25 is located at the proximal location apart from micromotor 22, and water outlet II26 is located at away from the remote of micromotor 22
End position.As shown in figure 9, when cooling duct II24 extends along the axis direction for being parallel to pump case 3, in order to preferably by pump case
When 3 heat is conducted to the II24 of cooling duct, the cooling duct outer surface II24 is equipped with several circumferentially extending to pump case 3
The thermally conductive muscle II32 of outer surface.When cooling duct II24 extends along the circumferencial direction of pump case 3, the cooling duct outer surface II24 is set
There is several axially extend to the thermally conductive muscle III16 of 3 outer surface of pump case.Extending direction there are two types of can also having simultaneously on pump case 3
Cooling duct II24, circumferentially extending cooling duct II24 are set to one end of the close micromotor 22 of pump case 3, in fact
Matter is the annular groove on the end end face, is sealed to form Cooling Water at it by end cap 5 when the end is connect with end cap 5
The cooling duct II24 of internal flow.The cooling duct II24 axially extended can be connected to circumferentially extending cooling duct
II24 and water outlet II26.
Mini-pump 21 and micromotor 22 can be coaxially connected, to reduce radial dimension, can also connect at a certain angle
It connects, preferred vertical connection, to reduce axial dimension.It can also be connected by buckle 34 between mini-pump 21 and micromotor 22,
To be further reduced overall dimensions.
As shown in Figure 1, shell 36 has the receiving portion 60 and hand-held part 37 of integrally connected, mini-pump 21 and micromotor 22
In receiving portion 60, hand-held part 37 is tilted along the direction away from receiving portion 60 to be extended, and hand-held part 37 is equipped with power switch 44.
Power switch 44 is connected to the start-up and shut-down control that complete machine is realized in power supply circuit.
In order to improve the application range of cleaning machine, reduction External cable, self-powered mode is can be used in cleaning machine, specifically,
Hand-held jetting machine 35 further includes battery pack 39, and the voltage rating of battery pack 39 is 18~60V；Battery pack 39 is set to hand-held part
In 37 or separably in the anti-sump 40 of 37 end of hand-held part, anti-sump 40 is equipped with waterproof warehouse lid 41.Waterproof warehouse lid 41
Slidingtype mode can be taken to realize the folding of anti-sump 40, articulated manner can also be taken to realize the folding of anti-sump 40, with
Convenient for the pick-and-place of battery pack 39.Waterproof warehouse lid 41 is formed by sealing strip 42 and anti-sump 40 and is sealed.As an alternative, battery
Packet 39 and the end part seal of hand-held part 37 are plugged and are connected, and specifically, hand-held part 37 is equipped with contact, and 39 corresponding position of battery pack is also set
There is contact, after 39 grafting in place of battery pack, the contact of the two is connected to form complete current supply circuit, while meeting waterproof requirement.
The fairlead that casing 6 is drawn equipped with power supply machine conducting wire 51, the sealed set at fairlead of motor wire 51, thus
Ensure to be sealing state inside motor, guarantees electrical safety.
In order to improve holding Experience Degree, the size of the receiving portion 60 of shell 36 be should not be too large, therefore the outer diameter of stator core 7
No more than 90mm, further, the outer diameter of stator core 7 is 38~58mm.Similarly, in order to reduce the hand-held fatigue used
The weight of sense, Handheld high-voltage cleaning machine 35 is no more than 4.2 kilograms.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (22)
1. a kind of Handheld high-voltage cleaning machine is with motor pump unit (20), comprising:
Outer diameter be no more than 90mm micromotor (22), the micromotor (22) include electric machine casing (29), motor shaft (9),
Rotor (8) and stator core (7), the rotor (8) are mounted on the motor shaft (9), and the stator core (7) is located at described
Rotor (8) is external；
Mini-pump (21), the mini-pump (21) include pump case (58), pump water inlet mouth (13) and high-pressure outlet (14)；
It is characterized by:
The electric machine casing (29) has a seal chamber I(30) and inner casing (52), the rotor (8) and the stator core (7)
Set on the seal chamber I(30) in, the inner surface of the inner casing (52) is close to the stator core (7) and forms thermal conduction path；
The electric machine casing (29) is equipped at least one by way of the cooling duct I(17 of the inner casing (52)), a connection cooling it is logical
Road I(17) one end water inlet I(19) with one be connected to the cooling duct I(17) the water outlet I(23 of the other end)；The water inlet
Mouth I(19) connection external water source, the water outlet I(23) it is connected with the pump water inlet mouth (13)；
The pump case (58) is equipped at least one cooling duct II(24), a connection cooling duct II(24) one end into
Mouth of a river II(25) with one it is connected to the cooling duct II(24) the water outlet II(26 of the other end)；The water inlet II(25) connection
External water source or the water outlet I(23), the water outlet II(26) the connection pump water inlet mouth (13).
2. a kind of Handheld high-voltage cleaning machine is with motor pump unit (20) according to claim 1, it is characterised in that: described cold
But channel I(17) when being more than two, the electric machine casing (29) is additionally provided with connection cooling duct I(17) shunting of water inlet end is logical
Road (15) be connected to cooling duct I(17) busway (18) of water outlet.
3. a kind of Handheld high-voltage cleaning machine is with motor pump unit (20) according to claim 2, it is characterised in that: described cold
But channel I(17) extend along the axis direction for being parallel to the electric machine casing (29), split channel (15) edge is parallel to institute
The diametrical direction for stating electric machine casing (29) extends, circumferentially extending of the busway (18) along the electric machine casing (29).
4. a kind of Handheld high-voltage cleaning machine is with motor pump unit (20) according to claim 2, it is characterised in that: the electricity
Casing body (29) includes that axial seal is connected to form the seal chamber I(30) end cap (5) and casing (6), the casing (6) is
Open at one end, the closed tank-like body of the other end, the end cap (5) are sealingly mounted at the opening of the casing (6), the end cap
(5) mini-pump (21) is connected；The water inlet I(19), cooling duct (17), split channel (15) and busway (18)
It is set on the casing (6), the water outlet I(23) it is set on the end cap (5).
5. a kind of Handheld high-voltage cleaning machine is with motor pump unit (20) according to claim 4, it is characterised in that: the machine
The opening of shell (6) has along annular groove made of its circumferentially extending (59), and the end cap (5) and the annular groove (59) sealing connect
The busway (18) are formed after connecing.
6. a kind of Handheld high-voltage cleaning machine is with motor pump unit (20) according to claim 4, it is characterised in that: the end
Cover and bearing II(12 be installed in the centre bore of (5)), the centre bore of the casing (6) installs bearing I(11), the motor shaft (9)
Both ends be respectively arranged in the bearing I (11) and the bearing I I(12) in；The split channel (15) is from the bearing I
(11) casing (6) outer vicinity of installation site passes through.
7. a kind of Handheld high-voltage cleaning machine is with motor pump unit (20) according to claim 4, it is characterised in that: the machine
Shell (6) is integrated the structural body of machine-shaping.
8. feature exists according to claim 1 to a kind of 7 any Handheld high-voltage cleaning machines with motor pump unit (20)
In: the outer surface cooling duct I(17) is equipped with several thermally conductive muscle I extended to the outer surface of the electric machine casing (29)
(31).
9. feature exists according to claim 1 to a kind of 7 any Handheld high-voltage cleaning machines with motor pump unit (20)
In: the electric machine casing (29) is equipped with the fairlead that power supply machine conducting wire (51) are drawn, and the motor wire (51) is drawn described
Portal and locates sealed set.
10. feature exists according to claim 1 to a kind of 7 any Handheld high-voltage cleaning machines with motor pump unit (20)
In: the micromotor (22) is rare earth permanent magnet brushless motor, and the waterproofing grade of the micromotor (22) is not less than IPX7, institute
The minimum operating pressures that of mini-pump (21) is stated not less than 2.5Mpa.
11. a kind of Handheld high-voltage cleaning machine is with motor pump unit (20) according to claim 1, it is characterised in that: described
Water inlet II(25) positioned at the proximal location apart from the micromotor (22), the water outlet II(26) be located at away from described miniature
The remote location of motor (22)；
As the cooling duct II(24) along be parallel to the pump case (58) axis direction extend when, the cooling duct II
(24) outer surface is equipped with several thermally conductive muscle II(32 for extending to the pump case (58) outer surface)；As the cooling duct II
(24) when extending along the circumferencial direction of the pump case (58), the cooling duct II(24) outer surface is equipped with and several extends to institute
State the thermally conductive muscle III(16 of pump case (58) outer surface).
12. a kind of Handheld high-voltage cleaning machine is with motor pump unit (20) according to claim 11, it is characterised in that: described
Pump case (58) include front and back connection to form seal chamber II(2) pump head (43) and pump case (3), the cooling duct II
(24), water outlet II(26) and water inlet II(25) be set on the pump case (3).
13. a kind of Handheld high-voltage cleaning machine is with motor pump unit (20) according to claim 11, it is characterised in that: described
Pump case (3) is equipped with end cap (4) close to the one end of the micromotor (22), and the end cap (4) and the micromotor (22) are even
It connects.
14. according to claim 1, a kind of 11 to 13 any Handheld high-voltage cleaning machines are special with motor pump unit (20)
Sign is: the mini-pump (21) is plunger pump, further includes at least one plunger (1) and a swash plate (33), the plunger (1)
The seal chamber II(2 of the pump case (3) is set to the swash plate (33)) in, the swash plate (33) is by the micromotor
(22) driving and drive the plunger (1) to move along a straight line.
15. a kind of Handheld high-voltage cleaning machine is with motor pump unit (20) according to claim 1, it is characterised in that: described
Mini-pump (21) and the micromotor (22) are coaxially connected or connect at a certain angle.
16. a kind of Handheld high-voltage cleaning machine is with motor pump unit (20) according to claim 1, it is characterised in that: described
Pass through buckle (34) connection between the pump case (58) of mini-pump (21) and the electric machine casing (29) of the micromotor (22).
17. a kind of Handheld high-voltage cleaning machine is with motor pump unit (20) according to claim 1, it is characterised in that: described
It is additionally provided between mini-pump (21) and the micromotor (22) deceleration mechanism (4), the deceleration mechanism (4) is planetary gear reduction
Fast mechanism and it is set to that be connected to end cap (5) between the mini-pump (21) and the micromotor (22) interior.
18. a kind of Handheld high-voltage cleaning machine (35), comprising:
Shell (36) and spray gun (38)；
It is characterized by also including Handheld high-voltage cleaning machine described in claim 1 motor pump unit (20), the shells
(36) Handheld high-voltage cleaning machine described in sealed envelope connects the high pressure water outlet with motor pump unit (20), the spray gun (38)
Mouth (14).
19. 8 a kind of Handheld high-voltage cleaning machine (35) according to claim 1, it is characterised in that: the shell (36) has
The receiving portion (60) and hand-held part (37) of integrally connected, the Handheld high-voltage cleaning machine are set to described with motor pump unit (20)
In receiving portion (60), the hand-held part (37) tilts along the direction away from the receiving portion (60) to be extended, the hand-held part (37)
It is equipped with power switch (44).
20. 9 a kind of Handheld high-voltage cleaning machine (35) according to claim 1, it is characterised in that: the hand-held high-pressure wash
Machine (39) further includes battery pack (39), and the voltage rating of the battery pack (39) is 18~60V；The battery pack (39) is set to institute
The anti-sump (40) stated in hand-held part (37) or separably set on the hand-held part (37) end is interior, and the anti-sump (40) sets
Have waterproof warehouse lid (41), the waterproof warehouse lid (41) is formed and sealed by sealing strip (42) and the anti-sump (40).
21. 9 a kind of Handheld high-voltage cleaning machine (35) according to claim 1, it is characterised in that: the hand-held high-pressure wash
Machine (39) further includes battery pack (39), and the voltage rating of the battery pack (39) is 18~60V；The battery pack (39) with it is described
The end part seal of hand-held part (37) plugs connection.
22. 8 to 21 any a kind of Handheld high-voltage cleaning machine (35) according to claim 1, it is characterised in that: described hand-held
Formula jetting machine (35) weight is no more than 4.2kg, and waterproofing grade is not less than IPX7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910353066.1A CN110145447B (en) | 2019-04-29 | 2019-04-29 | Motor pump unit for handheld high-pressure cleaning machine and handheld high-pressure cleaning machine |
| PCT/CN2019/099763 WO2020220504A1 (en) | 2019-04-29 | 2019-08-08 | Motor pump unit for handheld high-pressure washing machine and handheld high-pressure washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910353066.1A CN110145447B (en) | 2019-04-29 | 2019-04-29 | Motor pump unit for handheld high-pressure cleaning machine and handheld high-pressure cleaning machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110145447A true CN110145447A (en) | 2019-08-20 |
| CN110145447B CN110145447B (en) | 2020-04-14 |
Family
ID=67593839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910353066.1A Active CN110145447B (en) | 2019-04-29 | 2019-04-29 | Motor pump unit for handheld high-pressure cleaning machine and handheld high-pressure cleaning machine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110145447B (en) |
| WO (1) | WO2020220504A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111336101A (en) * | 2020-03-19 | 2020-06-26 | 苏州贝米科技有限公司 | Fluid supercharging device, application thereof and liquid supercharging system |
| WO2021109758A1 (en) * | 2019-12-06 | 2021-06-10 | 苏州宝时得电动工具有限公司 | Main machine assembly of cleaning machine and cleaning machine with same |
| WO2021110139A1 (en) * | 2019-12-06 | 2021-06-10 | 苏州宝时得电动工具有限公司 | Cleaning machine |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110145447B (en) | 2020-04-14 |
| WO2020220504A1 (en) | 2020-11-05 |
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