EP1328356A1 - Appareil de nettoyage sous haute pression - Google Patents

Appareil de nettoyage sous haute pression

Info

Publication number
EP1328356A1
EP1328356A1 EP01992617A EP01992617A EP1328356A1 EP 1328356 A1 EP1328356 A1 EP 1328356A1 EP 01992617 A EP01992617 A EP 01992617A EP 01992617 A EP01992617 A EP 01992617A EP 1328356 A1 EP1328356 A1 EP 1328356A1
Authority
EP
European Patent Office
Prior art keywords
box
housing
electric motor
cleaning device
pressure cleaning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP01992617A
Other languages
German (de)
English (en)
Other versions
EP1328356B1 (fr
Inventor
Lanfranco Pol
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alfred Kaercher SE and Co KG
Original Assignee
Alfred Kaercher SE and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Publication of EP1328356A1 publication Critical patent/EP1328356A1/fr
Application granted granted Critical
Publication of EP1328356B1 publication Critical patent/EP1328356B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/02—Stopping, starting, unloading or idling control
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/02—Stopping, starting, unloading or idling control
    • F04B49/022—Stopping, starting, unloading or idling control by means of pressure
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/10—Other safety measures
    • F04B49/106—Responsive to pumped volume
    • 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
    • F04B2205/00—Fluid parameters
    • F04B2205/04—Pressure in the outlet chamber
    • 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
    • F04B2205/00—Fluid parameters
    • F04B2205/09—Flow through the pump

Definitions

  • the invention relates to a high-pressure cleaning device with an electric motor and a pump for conveying a cleaning liquid, with a piston which can be displaced by the cleaning liquid as a function of its pressure or its flow rate, and with an electrical switch which can be actuated by the piston when it is displaced , With electrical lines arranged in the box from the power source and to the windings of the electric motor and with devices attached to the box for fastening the box to the housing of the electric motor and / or pump.
  • Such a high-pressure cleaning device is known from DE 4404924.
  • the object and the aim of the invention are to design a high-pressure cleaning device of the type described in the introduction, that a simpler and faster assembly is possible, which also offers the possibility of automating the assembly processes in question.
  • a high-pressure cleaning device of the type mentioned at the outset in that the switch is arranged in the box in that the walls of the box have openings for the electrical lines in which outward-pointing contacts are arranged, at least one opening being designed as a multiple plug connection is that the box is fastened to the housing with a plug connection and that the multiple plug connections are arranged on the box in such a way that when the box is fastened to the housing of the motor and / or pump, at least one mating connector which is suitably fastened to the housing is inevitably connected.
  • the counter-connection is molded onto the housing of the electric motor and / or pump. In this way, an additional part for this counter connection can be saved.
  • a particularly advantageous arrangement is obtained if the counter-connection is fastened to the end shield of the electric motor on the output side, because this enables the box to be arranged in the vicinity of the pump housing.
  • a particularly simple construction of the high-pressure cleaning device according to the invention is obtained if the mating connector or connectors which are suitably fastened to the housing of the electric motor and / or pump and the corresponding plug devices on the box are also designed for fastening the box to the housing of the pump and / or motor. In this case, it is no longer necessary to provide further plug devices for fastening the box.
  • the at least one mating connector fastened appropriately to the housing contains the electrical connecting lines for winding the electric motor, then further operations for bringing together individual plug contacts can be omitted.
  • a particularly advantageous embodiment results if a thermal switch is integrated in the box and contains a bimetal through which the winding current flows. In this case, it is no longer necessary to provide the electric motor to be assembled with a thermal protection switch before assembly, and the steps required for connecting the electrical lines to and in the box can be combined with the assembly of the thermal switch. It is particularly advantageous if the bimetal is arranged in the housing of the switch.
  • the switch can in particular be a microswitch.
  • the box has openings with outward-pointing contacts for attaching a capacitor.
  • the electrical lines are designed as stamped sheet metal parts within the box and are made in one piece with the contacts pointing outwards.
  • the box additionally has an opening for a manually operated switching device for the switch.
  • a particularly simple assembly results if the multiple plug connection on the housing is designed as a plug receptacle.
  • Figure 1 a schematic section of a motor pump unit of a high-pressure cleaning device with the box attached to the housing of the electric motor and pump.
  • FIG. 1 shows a partial section through a high-pressure cleaning device with an electric motor 1, which has a pump 2 for conveying a Drives cleaning fluid. It is an axial piston pump, the pump piston 3 of which is moved by a swash plate 4.
  • the swash plate 4 is fixed on the shaft 5 of the electric motor 1 and is rotated by the shaft 5.
  • the cleaning liquid flowing through the high-pressure outlet 6 of the pump 2 to an output unit (not shown) for the cleaning liquid acts on the piston 7, which is thereby displaced in its longitudinal direction.
  • the piston 7 acts via an actuating element 8 on the microswitch 10 arranged in a box 9 and actuates this microswitch 10 as a function of the pressure of the cleaning liquid.
  • the piston is a differential pressure piston, which is connected through the bores 11 to the high-pressure outlet of the pump.
  • electrical lines 12 are arranged, which are designed as stamped sheet metal parts. Openings 13, 14, 15 for the electrical lines are provided in the walls of the box 9. In these openings 13, 14, 15 outwardly facing contacts are provided, which are designed as multiple plug connections 16.
  • the output-side bearing plate 17 of the electric motor 1 is designed as a receptacle for the swash plate 4.
  • An opening 22 is formed on the output-side bearing plate 17, the edges of which serve to hold the box 9.
  • a plug is formed on the box 9 at the appropriate point.
  • a multiple plug-in connection 18 is inserted into the opening 22 on the output-side end shield 17 of the electric motor 1, from which lines for winding the Lead electric motor.
  • the box 9 is attached to the multiple plug connection 18 and the housing-side part of the plug connection 22 during assembly and fastened during the subsequent assembly of the pump housing 19.
  • the box is held by an additional nose formed on the pump housing 19, which engages in a corresponding opening in the box wall. This results in a particularly secure attachment of the box to the housing without the need for additional screw connections or similar, more complex attachment devices.
  • a capacitor 20 is also plugged onto the box via a multiple plug contact 15.
  • the box 9 additionally has an opening 21 for a manually operated switching device 22 for the switch 10.
  • the electric motor 1 is switched on and off as a function of pressure or flow speed via the piston 7 or by manual actuation.
  • the arrangement is advantageously chosen so that the manual operation when switching off simultaneously prevents the action of the piston 7 on the switch 10, so that the high-pressure cleaning device switched off by the manual operation can no longer be switched on by accidental pressure build-up or accidental opening of the spray gun.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Cleaning In General (AREA)
  • Reciprocating Pumps (AREA)
  • Detergent Compositions (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Centrifugal Separators (AREA)
  • Cleaning Or Drying Semiconductors (AREA)
EP01992617A 2000-10-26 2001-10-23 Appareil de nettoyage sous haute pression Expired - Lifetime EP1328356B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10053248A DE10053248A1 (de) 2000-10-26 2000-10-26 Hochdruckreinigungsgerät
DE10053248 2000-10-26
PCT/EP2001/012205 WO2002036275A1 (fr) 2000-10-26 2001-10-23 Appareil de nettoyage sous haute pression

Publications (2)

Publication Number Publication Date
EP1328356A1 true EP1328356A1 (fr) 2003-07-23
EP1328356B1 EP1328356B1 (fr) 2004-02-11

Family

ID=7661222

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01992617A Expired - Lifetime EP1328356B1 (fr) 2000-10-26 2001-10-23 Appareil de nettoyage sous haute pression

Country Status (10)

Country Link
US (1) US6866483B2 (fr)
EP (1) EP1328356B1 (fr)
JP (1) JP2004512935A (fr)
CN (1) CN1212899C (fr)
AT (1) ATE259260T1 (fr)
AU (1) AU2002221725A1 (fr)
BR (1) BR0114869B1 (fr)
DE (2) DE10053248A1 (fr)
DK (1) DK1328356T3 (fr)
WO (1) WO2002036275A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080162829A1 (en) * 2007-01-03 2008-07-03 Freescale Semiconductor, Inc. Selective guarded memory access on a per-instruction basis
DE102008019524A1 (de) * 2008-04-09 2009-10-15 Alfred Kärcher Gmbh & Co. Kg Hochdruckreinigungsgerät
DE102009049096A1 (de) * 2009-10-01 2011-04-07 Alfred Kärcher Gmbh & Co. Kg Pumpe für ein Hochdruckreinigungsgerät
DE102009049094A1 (de) * 2009-10-01 2011-04-07 Alfred Kärcher Gmbh & Co. Kg Pumpe für ein Hochdruckreinigungsgerät
DE102009049095A1 (de) * 2009-10-01 2011-04-07 Alfred Kärcher Gmbh & Co. Kg Pumpe für ein Hochdruckreinigungsgerät
CN104701040B (zh) * 2013-12-06 2016-08-31 苏州金莱克精密机械有限公司 一种具有开关盒结构的清洗机
CN209510562U (zh) 2015-11-20 2019-10-18 苏州宝时得电动工具有限公司 手持式高压清洗机
CN106314824A (zh) * 2016-09-12 2017-01-11 中国人民解放军海军航空工程学院青岛校区 一种多功能飞机清洗设备

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4675479A (en) * 1986-04-21 1987-06-23 Wallin Kenneth M Safety switch assemblage
DE4404924C1 (de) * 1994-02-16 1994-11-24 Kaercher Gmbh & Co Alfred Hochdruckreinigungsgerät
DE19527854C1 (de) * 1995-07-29 1996-07-18 Kaercher Gmbh & Co Alfred Hochdruckreinigungsgerät
DE29517915U1 (de) * 1995-11-11 1997-03-13 Ivt Hannelore Blank Installationssystem
DE19914581A1 (de) * 1999-03-31 2000-10-12 Grundfos A S Bjerringbro Kreiselpumpenaggregat
US6745667B1 (en) * 1999-10-25 2004-06-08 Continental Teves Ag & Co., Ohg Motor-pump aggregate

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0236275A1 *

Also Published As

Publication number Publication date
WO2002036275A1 (fr) 2002-05-10
AU2002221725A1 (en) 2002-05-15
DE10053248A1 (de) 2002-05-08
DK1328356T3 (da) 2004-03-08
JP2004512935A (ja) 2004-04-30
US20040022639A1 (en) 2004-02-05
BR0114869B1 (pt) 2010-06-01
DE50101486D1 (de) 2004-03-18
CN1471442A (zh) 2004-01-28
BR0114869A (pt) 2004-02-17
ATE259260T1 (de) 2004-02-15
US6866483B2 (en) 2005-03-15
EP1328356B1 (fr) 2004-02-11
CN1212899C (zh) 2005-08-03

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