CN113877730A - Electrical separation device for vehicle air conditioning system - Google Patents

Electrical separation device for vehicle air conditioning system Download PDF

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Publication number
CN113877730A
CN113877730A CN202110748908.0A CN202110748908A CN113877730A CN 113877730 A CN113877730 A CN 113877730A CN 202110748908 A CN202110748908 A CN 202110748908A CN 113877730 A CN113877730 A CN 113877730A
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China
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counter electrode
separation device
designed
electrical separation
unit
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Pending
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CN202110748908.0A
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Chinese (zh)
Inventor
R·孟克莫勒
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HEPA Ltd.
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Paragon GmbH and Co KGaA
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Publication of CN113877730A publication Critical patent/CN113877730A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/02—Plant or installations having external electricity supply
    • B03C3/04—Plant or installations having external electricity supply dry type
    • B03C3/12—Plant or installations having external electricity supply dry type characterised by separation of ionising and collecting stations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/40—Electrode constructions
    • B03C3/41—Ionising-electrodes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
    • A61L9/22—Ionisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/32—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/017—Combinations of electrostatic separation with other processes, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/019—Post-treatment of gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/02—Plant or installations having external electricity supply
    • B03C3/04—Plant or installations having external electricity supply dry type
    • B03C3/14—Plant or installations having external electricity supply dry type characterised by the additional use of mechanical effects, e.g. gravity
    • B03C3/155—Filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/38—Particle charging or ionising stations, e.g. using electric discharge, radioactive radiation or flames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/40—Electrode constructions
    • B03C3/45—Collecting-electrodes
    • B03C3/47—Collecting-electrodes flat, e.g. plates, discs, gratings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H3/00—Other air-treating devices
    • B60H3/0071—Electrically conditioning the air, e.g. by ionizing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H3/00—Other air-treating devices
    • B60H3/06—Filtering
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
    • A61L2209/10—Apparatus features
    • A61L2209/14—Filtering means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
    • A61L2209/10—Apparatus features
    • A61L2209/16—Connections to a HVAC unit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/91—Bacteria; Microorganisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/06—Polluted air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/45—Gas separation or purification devices adapted for specific applications
    • B01D2259/4566—Gas separation or purification devices adapted for specific applications for use in transportation means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C2201/00—Details of magnetic or electrostatic separation
    • B03C2201/30—Details of magnetic or electrostatic separation for use in or with vehicles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Epidemiology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Electrostatic Separation (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)

Abstract

An electrical separation device (2) for a vehicle air conditioning system has an ionization unit (3) which is formed by a discharge electrode (4) and a counter electrode (5) between which a potential difference can be generated, by means of which ionization unit (3) an air flow (1) flowing through the vehicle air conditioning system can be ionized. In order to avoid contamination of the counter electrode (5) of the ionization unit (3) which threatens the functionality of the electrical separation device (2), it is proposed that the counter electrode (5) of the ionization unit (3) is arranged at least substantially, preferably entirely, upstream of the discharge electrode (4) of the ionization unit (3) in the flow direction of the air flow (1).

Description

Electrical separation device for vehicle air conditioning system
Technical Field
The invention relates to an electrical separation device for a vehicle air conditioning system, comprising an ionization unit consisting of a discharge electrode and a counter electrode, between which a potential difference can be generated, by means of which an air flow through the vehicle air conditioning system can be ionized.
Background
Such electrical separation devices designed as electrostatic filters (ESP) usually have an ionization unit and a separation unit. A discharge electrode, which is designed, for example, as a discharge (metal) wire (corona wire) or a discharge tip (corona tip), is usually provided as an ionization unit. The electric field necessary for the function of the electrical separation device is formed between the discharge electrode and the counter electrode.
In a filter device consisting of an insulating material, ionization can be achieved by means of the counter electrode alone. The counter electrode may also generally constitute a separation unit of the electrical separation device.
In known electrical separation devices of this type, the separation plate or the counter electrode serving as the separation unit is always arranged entirely or substantially downstream of the discharge electrode of the ionization unit, viewed in the flow direction of the air flow.
The discharge electrode of an ionization cell is usually supplied with a high positive or negative voltage, the counter electrode of the ionization device being at ground potential. However, other voltage configurations are possible, as long as the potential difference between the discharge electrode and the counter electrode is sufficient to ionize the air flow.
In such electrical separation devices known in the prior art, the counter electrode of the ionization unit also automatically serves as the separation unit. This inevitably results in the deposition of charged molecules and particles carried by the air stream on the counter electrode. If such deposits increase during the operating time of the electrical separation device, this can lead to the ionization of the air flow being impeded and then also prevented by means of the ionization unit having the discharge electrode and the counter electrode.
Disclosure of Invention
Starting from the prior art described above, the invention is based on the object of ensuring reliable operation and sufficient functionality of an electrical separation device for a long time by preventing or minimizing deposits on the counter electrode.
According to the invention, this object is achieved in that: the counter electrode of the ionization unit is arranged at least substantially, preferably entirely (all) upstream of the discharge electrode (corona/corona electrode) of the ionization unit in the flow direction of the air flow. In the case of an electrical separation device designed according to the invention, the ionization unit of the electrical separation device has only or mainly the following tasks: a large number of ions are generated and correspondingly ionize the air stream flowing through the electrical separation device. Due to its upstream arrangement with respect to the discharge electrode, deposits at the counter electrode are prevented or reduced. A filter arranged downstream of the ionization unit can then be provided for the separation. In the case of the ionization unit of an electrical separation device designed according to the invention, the molecules and particles entrained by the air flow are not yet charged (charged) by the discharge electrode while passing the counter electrode, so that there is now no electrical attraction between the molecules and particles of the air flow and the counter electrode.
As long as the counter electrode of the ionization cell is additionally designed as a separation cell, it can be ensured that: particles and molecules ionized by means of an electric field existing between the discharge electrode and the counter electrode are deposited at the counter electrode, and the ionized particles and molecules move in the opposite direction of the flow direction of the air flow due to the electric field. These are relatively small molecules and particles that do not cause deposition and contamination at the counter electrode that jeopardize the operation of the ionization cell.
It is possible to achieve if the potential difference between the discharge electrode and the counter electrode or the field strength based on the potential difference can be set at a level at which, in the case of an air flow of the vehicle air conditioning system predefined with respect to volume and flow velocity, particles below a predefined particle size, for example particles below 150 nm, can be separated at the counter electrode designed as a separation unit: such particles, for example in the size range in which the virus is located, deposit at the counter electrode of the ionization unit.
The counter electrode, which is designed as a separate unit and is arranged upstream of the radio electrode in the flow direction of the air flow, can advantageously be designed as a grid and thus forms a contact protection for the power generating electrode arranged downstream of the grid.
According to a further advantageous embodiment, the counter electrode, which is designed as a separating unit, is designed as a grid, by means of which the intrusion of large objects into the electrical separation device can be prevented. This can be achieved in a simple manner if the counter electrode, which is designed as a separate unit, is filled with the entire flow cross section of the air flow.
If the counter electrode, which is designed to be configured as a separation unit, is designed to be antimicrobial, it is achieved that: viruses, bacteria and the like contained in particles separated at the counter electrode are inactivated (i.e., inactivated) before being dislodged from the counter electrode by vibration, vibration or the like and re-entering the air stream.
When the counter electrode is made of copper, silver or other antimicrobial (sterilizing) material, the antimicrobial design construction of the counter electrode can be achieved with relatively low cost and reliable results.
If the counter electrode has a coating with antimicrobial action, for example a coating made of silver ions and/or copper ions, the antimicrobial action of the counter electrode can be ensured by relatively low technical construction and material expenditure.
In order to keep the separation of larger particles, which should be avoided from depositing at the counter electrode, in the electrical separation device, it is advantageous to provide at least one further separation unit downstream of the discharge electrode and the counter electrode in the flow direction of the air flow.
In order to ensure that molecules and particles entrained (carried) by the air flow passing through the ionization unit are deposited in the further separation unit, it is useful if the at least one further separation unit arranged downstream of the counter electrode and the discharge electrode in the flow direction of the air flow is designed as a electrostatically charged fiber filter.
In this further separating unit, particles falling off from the counter electrode due to vibrations, mechanical vibrations, etc. are naturally also separated.
According to the invention, even in the case of a design of the electrical separation device which is made due to the restrictions given by the structural conditions, a significant reduction in the harmful load on the vehicle air conditioning system by the air flow having viruses, bacteria, etc. flowing through the vehicle air conditioning system can be ensured to the greatest possible extent.
Drawings
In the following, the invention will be explained in more detail according to one embodiment with reference to the drawing, fig. 1 shows in a schematic representation an embodiment of an electrical separating device for a vehicle air conditioning system according to the invention.
Detailed Description
In a suitable part (section) of the vehicle air conditioning system, the rest of which is not shown in the separate figure, an electrical separation device 2 is arranged through which the air flow 1 passes. Such an electrical separation device 2 is used as an electrostatic filter (ESP).
The ionization unit 3 belongs to an electrical separation device 2 of the type in which, in the case of the electrical separation device 2 shown in the separate figure, the ionization unit 3 has a discharge electrode (corona/corona electrode) 4 and a counter electrode 5, in the embodiment of the electrical separation device 2 according to the invention shown in the separate figure, the counter electrode 5 also forms the separation unit of the electrical separation device 2.
In the case of the electrical separation device 2 shown in this single figure, the majority of the counter electrode 5 of the ionization unit 3 is arranged upstream of the discharge electrode 4 of the ionization unit 3, viewed in the flow direction of the air flow 1. Of course, it is also possible for the counter electrode of the ionization cell 3 to be arranged entirely upstream of the discharge electrode 4 of the ionization cell 3.
Basically, it is achieved that, as the counter electrode 5 of the ionization unit 3 is arranged upstream of the discharge electrode 4 of the ionization unit 3, molecules and particles entrained in the air flow 1 are not yet charged (charged) by the discharge electrode 4 while flowing past or passing the counter electrode 5. At this moment, therefore, there is not yet any electrical attraction between the molecules and particles of the air flow 1 and the counter electrode 5 of the ionization unit 3.
By generating a potential difference between the discharge electrode 4 and the counter electrode 5 of the ionization device 3, a sufficiently strong electric field is generated, by means of which a movement of molecules and particles entrained with the air flow 1 can be generated. Charged particles and molecules are accelerated in an electric field as ions and there move the air around them.
This air movement, which is generated in terms of particles and molecules acting as ions, interacts with the movement of the air flow 1. The smaller the charged particle or charged molecule, i.e. its aerodynamic diameter, the more the motion due to the electric field exceeds the flow of the air stream 1 (the more dominant the motion due to the electric field will be compared to the flow of the air stream 1). Thus, the smaller the particle or molecule, the easier it will move against the normal flow movement of the air stream 1.
In the case of the embodiment of the electrical separation device 2 depicted in the figure, this effect serves to specifically move particles and molecules below a certain size against the flow of the air flow 1 towards the counter electrode 5 of the ionization unit 3 by means of the electric field generated between the discharge electrode 4 and the counter electrode 5 of the ionization unit 3. These particles and molecules are therefore deposited at the counter electrode 5 of the ionization cell 3.
The larger particles can then be separated from the air stream 1 in a further separating device arranged downstream of the discharge electrode 4 of the ionization unit 3 in the flow direction of the air stream 1, in which further separating device a further separating unit 6 is shown in this separate figure.
Such further separating means, for example the separating unit 6, are usually replaceable.
Depending on the flow parameters of the air flow 1 and the parameters of the vehicle air conditioning system, the electric field generated between the discharge electrode 4 and the counter electrode 5 of the ionization unit 3 can be adjusted by an adjustable high voltage, so that particles with a size range below 150 nm (up to 150 nm) are substantially separated at the counter electrode 5 of the ionization unit 3. In this size range of particles up to 150 nm, for example, viruses are present, which usually occur together with particles in the size range between 80 nm and 120 nm.
Due to its upstream arrangement with respect to the discharge electrode 4 of the ionization cell 3, the counter electrode 5 can be designed as a grid. The discharge electrode 4 is thereby protected from contact by relatively large objects transported by means of the air flow 1, the discharge electrode 4 being a relatively sensitive technical component. Furthermore, in the case of the embodiment according to the individual figures, the counter electrode 5 is arranged over the entire flow cross section of the air flow 1, whereby its design as a grid ensures that relatively large objects are prevented from penetrating into the electrical separation device 2.
The discharge electrode 4 of the ionization unit 3 shown in the illustrated embodiment can be realized by means of a discharge (wire) wire or a discharge tip. The discharge electrode 4 is usually applied with a high positive or negative voltage, wherein the counter electrode 5 is at ground potential. However, other voltage configurations are possible as long as it is ensured that the potential difference between the discharge electrode 4 and the counter electrode 5 of the ionization unit 3 is sufficiently high for ionization of the air flow 1.
In the case of the above-described electrical separation device 2, the counter electrode 5 also serves as a separation unit for small particles and molecules in the range up to 150 nm, which is made of a material resistant to the action of microorganisms (biozid), such as copper or silver. Alternatively, the counter electrode 5 may also be provided with an antimicrobial coating. Such an antimicrobial coating may include, for example, silver ions and/or copper ions. If particles deposited at the counter electrode 5 are dislodged from the counter electrode 5 of the ionization unit 3 of the electrical separation apparatus 2, which also serves as a separation unit, due to vibrations or the like occurring during operation of the vehicle, the viruses and bacteria dislodged in this way are not active due to the antimicrobial design or the antimicrobial coating of the counter electrode 5.
In the embodiment of the electrical separation device 2 shown in the single figure, the electrical separation device 2 is provided with a further separation unit 6, which further separation unit 6 is arranged downstream of the ionization unit 3 in the flow direction of the air flow 1, the ionization unit 3 being constituted by a discharge electrode 4 and a counter electrode 5. In this further separating unit 6 of the electrodeionization device 2, larger particles entrained by the air stream 1 are separated from the air stream 1 for which, due to inertia, the attraction force of the counterelectrode 5 on these larger particles is insufficient to move them against the flow direction of the air stream 1 and to deposit them at the counterelectrode 5. In addition, in this further separating unit 6 of the electrical separating device 2, particles which have fallen off from the counter electrode 5 can also be separated.
As already mentioned above, this embodiment can also be realized in which a plurality of further separating units 6 are arranged downstream of the ionization unit 3 formed by the discharge electrode 4 and the counter electrode 5, according to the profile of the requirements for the electrical separating device 2.

Claims (10)

1. An electrical separation device for a vehicle air conditioning system, having an ionization unit (3) which is composed of a discharge electrode (4) and a counter electrode (5), between which a potential difference can be generated, with which ionization unit (3) an air flow (1) flowing through the vehicle air conditioning system can be ionized, characterized in that the counter electrode (5) of the ionization unit (3) is arranged at least substantially, preferably entirely, upstream of the discharge electrode (4) of the ionization unit (3) in the flow direction of the air flow (1).
2. Electrical separation device according to claim 1, characterized in that the counter electrode (5) is designed as a separation unit.
3. The electrical separation device according to claim 1 or 2, characterized in that the potential difference between the discharge electrode (4) and the counter electrode (5) or the field strength based on the potential difference can be adjusted at a level at which, in the case of an air flow (1) of the vehicle air conditioning system, which is predefined with respect to volume and flow velocity, particles below a predefined particle size, for example particles below 150 nm, can be separated at the counter electrode (5) designed as a separation unit.
4. Electrical separation device according to one of claims 1 to 3, characterized in that the counter electrode (5) designed as a separation unit is designed as a grid which forms a contact protection for the discharge electrode (4).
5. Electrical separation device according to one of claims 1 to 4, characterized in that the counter electrode (5) designed as a separation unit is designed as a grid, by means of which the intrusion of larger objects into the electrical separation device (2) can be prevented.
6. Electrical separation device according to one of the claims 1 to 5, characterized in that the counter electrode (5) designed as a separation unit is designed to be antimicrobial.
7. Electrical separation device according to claim 6, characterised in that the counter electrode (5) designed to be constructed as the separation unit consists of copper, silver or other antimicrobial material.
8. Electrical separation device according to claim 6, characterised in that the counter electrode (5) configured as the separation unit is provided with an antimicrobial coating consisting of, for example, silver ions or copper ions.
9. Electrical separation device according to one of claims 1 to 8, characterized in that it has at least one, if appropriate a plurality of, further separation units (6) downstream of the counter electrode (5) and the discharge electrode (4) in the flow direction of the air flow (1).
10. Electrical separation device according to claim 9, characterized in that the at least one separation unit (6) arranged downstream of the counter electrode (5) and the discharge electrode (4) in the flow direction of the air flow (1) is designed as an electrostatically charged fibre filter.
CN202110748908.0A 2020-07-03 2021-07-02 Electrical separation device for vehicle air conditioning system Pending CN113877730A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020004010.1A DE102020004010A1 (en) 2020-07-03 2020-07-03 Electric separator for vehicle air conditioning systems
DE102020004010.1 2020-07-03

Publications (1)

Publication Number Publication Date
CN113877730A true CN113877730A (en) 2022-01-04

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Application Number Title Priority Date Filing Date
CN202110748908.0A Pending CN113877730A (en) 2020-07-03 2021-07-02 Electrical separation device for vehicle air conditioning system

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DE (1) DE102020004010A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29615980U1 (en) 1996-09-13 1997-02-13 Maxs Ag Device for the electrostatic separation of impurities
WO2001064349A1 (en) 2000-03-03 2001-09-07 Matsushita Seiko Co., Ltd. Dust collecting apparatus and air-conditioning apparatus
US8003058B2 (en) 2006-08-09 2011-08-23 Airinspace B.V. Air purification devices

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