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
  • B08B3/04—Cleaning involving contact with liquid
  • B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
  • B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
  • A47L15/00—Washing or rinsing machines for crockery or tableware
  • A47L15/02—Washing or rinsing machines for crockery or tableware with circulation and agitation of the cleaning liquid in the cleaning chamber containing a stationary basket
  • A47L15/13—Washing or rinsing machines for crockery or tableware with circulation and agitation of the cleaning liquid in the cleaning chamber containing a stationary basket using sonic or ultrasonic waves
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
  • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
  • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
  • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
  • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
  • B06B1/0607—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements
  • B06B1/0611—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements in a pile
  • B06B1/0618—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements in a pile of piezo- and non-piezoelectric elements, e.g. 'Tonpilz'
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F19/00—Washing machines using vibrations for washing purposes
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
  • A47L2601/00—Washing methods characterised by the use of a particular treatment
  • A47L2601/17—Sonic or ultrasonic waves

Definitions

• the invention relates to an ultrasonic generator.
• a piezoelectric transducer is known in which two oppositely polarized piezoelectric elements are used, which are operated in phase opposition and thus double the deflection of the elements.
• the elements are clamped laterally, and by deflecting the other side, for example, the magnetic head of an image tape recorder is placed over a track
• Such an arrangement is generally not suitable for generating large energies in the ultrasound range.
• the object of the invention is to provide an ultrasound generator with a high output, which is to be used in a simple manner, in particular in devices containing liquids.
• the device is a
• Washing machine energy is not only achieved that no lime deposits on the wall of the washing machine, but it is achieved that the washing powder consumption can be reduced to about a third of the otherwise prescribed amount.
• the device is a coffee machine. It is achieved that no limescale settles in the water-carrying part of the coffee machine.
• the device is a dishwasher.
• no lime deposits and on the other hand the amount of detergent to be used can be reduced to a third of the normal amount indicated.
• the device is a
• Air washer of an air conditioner It is achieved here that the bacteria are killed in the liquid area used for air washing, so that the addition of chemicals for this purpose can be dispensed with.
• this is designed as a coupling piece of a tube. It is achieved here that no limescale deposits occur in the interior of the tube in a region to which ultrasonic energy is applied.
• Fig. 1 shows a section through an ultrasonic generator with a
• first embodiment of a head 2 shows a section through a modified embodiment of the head
• FIG. 3 shows a plan view of the ultrasound generator from below
• Fig. 4 shows a section through a housing with a built-in
• Fig. 5 shows a section through a tube with an inserted
• Fig. 6 is a schematic sectional view of an air washer in an air conditioner with ultrasonic generators used.
• the ultrasound generator 1 has a first piezoceramic plate 2 and a second piezoceramic plate 3 which is adjacent to it and oppositely directed.
• a conductive plate preferably a bronze plate 4 which extends over the entire surface of the plates and serves as the first electrode.
• a second electrode 5 in the form of such a bronze plate is arranged on the surface of the first piezoceramic plate opposite the first bronze plate.
• the two plates are connected to lead wires connected to a corresponding power supply.
• the two ceramic plates are designed as round plates.
• a metal body designed as a generator head 8 " which is preferably made of the same metal as the body 6 and which is also cylindrical to match the cross-sectional shape of the ceramic disks.
• the generator head points an axial bore 9 on its side facing the body 6. Also the Ceramic disks and the two bronze plates have corresponding axial bores. From the side of the body 6 facing away from the ceramic plates, a cap screw 10 is screwed through the body 6, the bronze plates and the ceramic plates into the generator head 8 in such a way that the body 6 and generator head 8 are pressed against the ceramic plates under tension.
• the holes through the two ceramic plates and the bronze plate 4 are chosen so large that they are at a distance from the shaft of the screw 10 and an insulating sleeve 10 'is provided between the latter and the screw 10.
• the bore of the bronze plate 5 and the body 6, however, can be smaller. In any case, an electrical contact is made via the body 6 and the screw 10 resting thereon, which electrically connects the body 6 and the generator head 8 to one another and thus to the second electrode 5.
• a generator housing 11 is provided according to a first embodiment of the generator, which housing 6, the ceramic plates, the
• Screws 12 firmly connected.
• the connection between the vibrating part of the generator and the housing has thus been made at the point at which the amplitude of the vibrations in the actual generator block is smallest. In this way it is achieved that the housing is essentially without vibration.
• the housing has a corresponding opening 13 on its bottom side for inserting the voltage supply lines.
• FIG. 3 shows the view of the generator shown in Fig. 1 from below.
• FIG. 2 shows a generator head 14 modified compared to FIG. 1. Its end area is specially designed so that it can be inserted into an elastic sealing sleeve 15, which in turn can be inserted into a recess in a housing 16 of a water-absorbing device in the floor.
• the generator head 14 has the actual excitation surface 17, cylindrical gradations 18 adapted to the seal and a retaining ring 19 to be inserted into the sleeve.
• the device is a washing machine or a dishwasher
• the housing is the water-absorbing part of the washing machine or dishwasher mixed with detergent or detergent.
• the housing 15 is the water-carrying part of a
• the ultrasound generator is inserted into a tube insert 20, which can be inserted between two schematically indicated tube ends 21, 22 is.
• the pipe insert has a laterally attached insert socket 23, the central axis of which at an angle l of essentially 45 degrees to the longitudinal axis of the insert 24 to be fitted between the pipe ends.
• the ultrasound generator has a mounting ring 25 which is firmly connected to the second electrode 5 by screws 26. This has an external thread which can be screwed into an internal thread of the insert nozzle 23.
• the mounting ring 25 is isolated in terms of vibrations via elastic rings 27 against transmission of the vibrations from the ultrasound generator. This ensures that essentially no vibrations are transmitted to the insert nozzle.
• the entire energy is introduced via the excitation surface 17 into the tube insert 20 and thus far into a tube connected to it. In this way, it can be prevented that limescale or other sediments settle in the piece of pipe so acted upon, and sediment that has already settled can even be released again.
• the housing 16 is the wall of an air washer 28 of an air conditioning system.
• the structure of the ultrasonic generator 8 corresponds to the embodiment shown in FIG. 1 with the head shown in FIG. 2, which in the same way as in FIG. 4 has an elastic head
• the ultrasound generator is arranged in the bottom area of the housing in such a way that its excitation surface projects into the washing water 29 located in the bottom area. Ultrasonic energy is introduced into the water via its excitation surface 17, as a result of which the bacteria washed out of the air are killed.
• FIG. 6 there is a second one in the supply line 30 for supplying steam or water to be sprayed out into the interior of the air washer Ultrasonic generator 31 used. For the purpose of insertion, this is designed in the same way as in the embodiment shown in FIG. 5, so that the screwing takes place via a corresponding mounting ring 25 into an internal thread of the feed line 30. This second ultrasound generator ensures that 30 lime or the like cannot settle in the interior of the feed line.

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Mechanical Engineering (AREA)
• Cleaning By Liquid Or Steam (AREA)
• Water Treatment By Electricity Or Magnetism (AREA)
• Apparatuses For Generation Of Mechanical Vibrations (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=6369761

Family Applications (1)

Country Status (5)

Cited By (2)

Families Citing this family (4)

Citations (5)

Family Cites Families (2)

• 1988
  • 1988-12-21 DE DE3843110A patent/DE3843110C1/de not_active Revoked
• 1989
  • 1989-12-19 WO PCT/EP1989/001569 patent/WO1990006817A1/de not_active Application Discontinuation
  • 1989-12-19 EP EP19900901768 patent/EP0401364A1/de not_active Withdrawn
  • 1989-12-20 YU YU241489A patent/YU241489A/sh unknown
  • 1989-12-21 CS CS897297A patent/CS729789A2/cs unknown

Patent Citations (5)

Non-Patent Citations (1)

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