EP3184929B1 - Ventilateur ayant une fonction de chauffage - Google Patents

Ventilateur ayant une fonction de chauffage Download PDF

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Publication number
EP3184929B1
EP3184929B1 EP16204682.5A EP16204682A EP3184929B1 EP 3184929 B1 EP3184929 B1 EP 3184929B1 EP 16204682 A EP16204682 A EP 16204682A EP 3184929 B1 EP3184929 B1 EP 3184929B1
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EP
European Patent Office
Prior art keywords
fan
air
motor
heating
accordance
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.)
Active
Application number
EP16204682.5A
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German (de)
English (en)
Other versions
EP3184929A1 (fr
Inventor
Andreas Presetschnik
Georg Wallner
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.)
Liebherr Transportation Systems GmbH and Co KG
Original Assignee
Liebherr Transportation Systems GmbH and Co KG
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Publication of EP3184929A1 publication Critical patent/EP3184929A1/fr
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Publication of EP3184929B1 publication Critical patent/EP3184929B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
    • F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/007—Ventilation with forced flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
    • F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
    • F24H3/0411—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between for domestic or space-heating systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/34—Heater, e.g. gas burner, electric air heater

Definitions

  • the invention relates to a fan with a heating function.
  • the object of the fan according to the invention is therefore to provide a device in which the cooling problem mentioned does not exist and in which
  • PTC heating register can be used. This object is achieved by a fan according to claim 1 and by an air conditioner according to claim 10 with a corresponding fan.
  • Advantageous training is the subject of the dependent claims.
  • a fan for an air conditioner with at least one blower, at least one heating register and at least one fan motor comprising at least two separate inflow areas and at least one outflow area and wherein the fan motor and the at least one heating register are arranged parallel to one another in the flow direction.
  • a heating register within the blower or alternatively or additionally to arrange a heating register in an inflow area that is not assigned to the fan motor, so that the fan motor is not subjected to heat by the alternative or additional heating register. Since, according to the invention, the air flow flows in via at least two separate inflow areas to the blower and leaves the blower via at least one outflow area, it is possible to provide heating registers in the separate inflow areas running in parallel.
  • the heating register is a PTC heating register and / or that the fan is a radial fan. If a PTC heating register with a correspondingly increased pressure drop due to its design is used, it can be arranged such that it does not heat the entire air volume flow, but only the volume flow that is assigned to one of the at least two separate inflow areas. As a result, the pressure losses can be minimized and the use of larger fan motors which may otherwise be necessary can be avoided.
  • a radial fan sucking in on both sides also has the advantage that it can be designed with two separate inflow areas and one common outflow area, so that this design-related separation into three separate air flows can be used for separate heating of the inflow air masses.
  • the blower is a double-flow radial blower with two blower parts.
  • Each of the blower parts can comprise two separate inflow areas and one outflow area.
  • a common fan motor can be provided for both fan parts or each fan part can have its own fan motor. The fan motor or the fan motors can be arranged between the fan parts.
  • At least the first inflow region is arranged in the region of the fan motor and / or that at least the second inflow region is arranged on a side of the at least one fan part opposite the fan motor. If there is talk of a fan motor in the present case, a different number of fan motors can of course also be meant. By dividing the inflow area into two separate inflow areas, it is possible to provide one of them for the arrangement of a fan motor and to use the other to heat the air.
  • the fan motor is designed with integrated motor electronics.
  • the corresponding electronics which are heated or heated during operation like the motor itself, can be cooled by the same unheated air flow through which the fan motor can be cooled.
  • At least one perforated plate or a plurality of perforated plates to be arranged in front of at least one inflow region, the ratio of the air volume flows of the inflow regions being set via the perforation of the perforated plate or perforated plates. This makes it particularly easy to adapt the air volume flows of the at least two inflow regions to the heating register and to the suction power of the fan.
  • the invention is also directed to an air conditioner with at least one fan with the features described above.
  • Corresponding fans can be used in particular in entry-level room heaters or circulating air heaters.
  • FIG. 1 shows a fan 1 with heating register 2, which is shown according to the prior art in a suction arrangement.
  • the fan motor 3 with integrated motor electronics is subjected to a partial air flow heated by the heating register 2. Cool mixed air penetrates through the heating register 2 and, when heated, flows past the fan motor 3 and into two blower parts 4, 4 ', from which it is pressed as heated supply air into the further air conditioning device arrangement.
  • Figure 2 shows a reverse arrangement, also corresponding to the state of the art, in which the heating register 2 in the fan 1 is arranged downstream of the blower parts 4, 4 ', so that cold mixed air is also passed past the fan motor 3 through the blower parts 4, 4' and from there is flowed through the heating register 2 for heating.
  • the blower 4, 4 'or the two blower parts 4, 4' of the fan 1 are designed as double-flow radial blowers.
  • the heating registers are thus arranged either upstream or downstream of the blower parts 4, 4 'and are therefore located in the fan or the fan 1 in the flow direction at the front or rear.
  • the entire air flow flows through the heating register or heaters 2.
  • fans 1 there is the possibility of positioning the motor 3 and the motor electronics outside the air flow.
  • the disadvantage here is that cooling of the motor 3 and / or the motor electronics, which may be necessary, can take place through a cold air flow.
  • the heating register 2 is arranged in front of the fan 1 or in front of the fan parts 4, 4 ', the heated air is also washed around the motor 3 and the integrated motor electronics. This can have a negative impact on the functionality of the engine and reduce the lifespan of the engine electronics.
  • the motor 3 could also be forced to switch off when the temperatures are too high.
  • Figure 3 shows an arrangement according to the invention of a fan 1 and two heating registers 2, 2 ', in which the incoming mixed air is divided into parallel air flows, at least one of which is spaced via a heating register 2, 2' and one of them and past the fan motor 3 to the fan 4, 4 'is directed. Air flows into the blowers 4, 4 ', on the one hand, from the heating register 2, 2' and, on the other hand, only air conducted via the fan motor 3. According to the invention, it is thus also possible to arrange the heating registers 2, 2 'for heating the supply air in a primary device, particularly close to the fan 1 responsible for air delivery or close to the fan parts 4, 4' thereof.
  • the elements for heating the supply air such as a PTC heating register, are arranged in the area of the fan 1 in such a way that the drive motor 3 or motor 3 together with integrated motor electronics are operated by an unconditioned, i.e. not heated partial flow of the supply air, which is sucked in by fan 1, is further cooled. Only the partial air flow not conveyed to the motor 3 together with the motor electronics by the fan 1 is heated and so there are no impermissibly high temperatures in the field of motor electronics or the temperatures are kept as low as possible to ensure a long service life of the electronic components.
  • the supply air temperature after flowing through the fan 1 or after flowing through its blower parts 4, 4 'thus results from the ratio of the unconditioned or hardly conditioned partial air flow via the motor 3 and the electronics and the partial air flow conditioned by the heating registers 2, 2' .
  • This arrangement of the air heating parallel to the engine and electronics cooling also makes it possible to make sensible use of the engine's waste heat and to implement a compact design for the entire device.
  • the fan 1 By designing the fan 1 with corresponding heating registers 2, 2 ', the maximum surface temperature at the heating element can be kept below 200 ° C, so that the safety elements currently required can be dispensed with.
  • the use of PTC technology can replace the current embodiment with heating elements.
  • Figure 4 shows a fan 1 for an air conditioner, in which a blower 4, 4 'is made of two corresponding blower parts 4, 4'.
  • a PTC heating register 2, 2 ' is assigned to each of the blower parts 4, 4'.
  • a fan motor 3 or several fan motors 3 are also provided between the fan parts 4, 4 ′.
  • the fan 1 is designed such that each blower part 4, 4 'is assigned two separate inflow areas 11, 12, 11', 12 'and one outflow area 13, 13'. How out Figures 3 and 4th it can be seen that the heating register 2, 2 'can be arranged parallel to the fan motor 3 in the flow direction. As a result, the air heated by the heating registers 2, 2 ′ does not flow past the fan motor 3 while being heated.
  • the fan motor 3 can be arranged between the two fan parts 4, 4 '.
  • the fan motor 3 is assigned to the first inflow regions 12, 12 'of the blower parts 4, 4', ie it lies between the two blower parts 4, 4 '.
  • the second inflow regions 11, 11 'of the blower parts 4, 4' are assigned the heating registers 2, 2 'and the second Inflow areas 11, 11 'each lie on a side of the fan parts 4, 4' opposite the fan motor 3.
  • the air volume flows between the inflow areas 11, 12, 11 ', 12' can be controlled via the perforation of the perforated plate 5, which is located in the inflow area of the fan 1.
  • FIG. 5 shows a detailed view of the fan 1, wherein the 4 Luftansaugungspond are indicated with the letter L. Via the wheels 15 the air can be sucked in accordance with and be transported through the air outlets L of further means of the motor.
  • Figures 6 and 7 show an embodiment which is not part of the invention, in which the heating register is arranged downstream of the fan motor in the flow direction, in which the heating register 2, 2 'is integrated within the blower 4, 4'. This can be done alternatively or in addition to an arrangement of the heating register 2, 2 'outside the fan 4, 4'.
  • the heating register 2, 2 'can be in the design of the Figure 6 comprise a heating surface which is provided inside the blower 4, 4 'on the outer wall thereof.
  • the heating register 2, 2 'can be arranged spirally or circularly within the blower 4, 4'. This results in a particularly compact design of the fan 1 with simultaneous effective heat input from the heating register 2, 2 'into the air to be heated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (9)

  1. Ventilateur (1) comprenant au moins une soufflante (4, 4'), au moins un registre de chauffage (2, 2') et au moins un moteur de ventilateur (3), le ventilateur (1) comprenant au moins deux zones d'admission (11, 12, 11', 12') séparées et au moins une zone d'évacuation (13, 13'), caractérisé en ce que le moteur de ventilateur (3) et l'au moins un registre de chauffage (2, 2') sont disposés parallèlement l'un à l'autre dans le sens d'écoulement de telle manière que l'air mélangé affluent est divisé en écoulements d'air parallèles, dont au moins un est guidé via un registre de chauffage (2, 2') et un, espacé de celui-ci, jusqu'à la soufflante en passant à côté du moteur de ventilateur (3), de telle sorte que, dans la soufflante (4, 4'), s'écoulent d'une part de l'air chauffé par le registre de chauffage (2/2') et d'autre part de l'air guidé uniquement par le moteur de ventilateur (3).
  2. Ventilateur (1) selon la revendication 1, caractérisé en ce que le registre de chauffage (2, 2') est un registre de chauffage CTP, et/ou en ce que la soufflante (4, 4') est une soufflante radiale.
  3. Ventilateur (1) selon la revendication 1 ou 2, caractérisé en ce que la soufflante (4, 4') est une soufflante radiale aspirant des deux côtés, dotées de deux parties de soufflante (4, 4').
  4. Ventilateur (1) selon la revendication 3, caractérisé en ce que le moteur de ventilateur (3) est disposé entre les parties de soufflante (4, 4').
  5. Ventilateur (1) selon l'une des revendications précédentes, caractérisé en ce qu'au moins la première zone d'admission (12, 12') est disposée dans la zone du moteur de ventilateur (3), et/ou en ce qu'au moins la deuxième zone d'admission (11, 11') est disposée sur un côté de l'au moins une partie de soufflante (4, 4') opposé au moteur de ventilateur (3).
  6. Ventilateur (1) selon l'une des revendications précédentes, caractérisé en ce que le moteur de ventilateur (3) est réalisé avec une électronique de moteur intégrée.
  7. Ventilateur (1) selon l'une des revendications précédentes, caractérisé en ce qu'une tôle perforée (5) ou plusieurs tôles perforées (5) sont placées en amont d'au moins une zone d'admission (11, 12, 11', 12'), la perforation de la tôle perforée (5) ou des tôles perforées (5) permettant de régler le rapport des débits d'air des zones d'admission (11, 12, 11', 12').
  8. Climatiseur (100), en particulier pour véhicule ferroviaire, destiné au chauffage et/ou au refroidissement, comprenant au moins un ventilateur (1) selon l'une des revendications 1 à 7.
  9. Utilisation d'un climatiseur (100) selon la revendication 8, comme dispositif de chauffage d'espace d'accès ou dispositif de chauffage à circulation d'air.
EP16204682.5A 2015-12-22 2016-12-16 Ventilateur ayant une fonction de chauffage Active EP3184929B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015016613.1A DE102015016613A1 (de) 2015-12-22 2015-12-22 Lüfter mit Heizfunktion

Publications (2)

Publication Number Publication Date
EP3184929A1 EP3184929A1 (fr) 2017-06-28
EP3184929B1 true EP3184929B1 (fr) 2020-07-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP16204682.5A Active EP3184929B1 (fr) 2015-12-22 2016-12-16 Ventilateur ayant une fonction de chauffage

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EP (1) EP3184929B1 (fr)
DE (1) DE102015016613A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017129030A1 (de) * 2017-12-06 2019-06-06 Truma Gerätetechnik GmbH & Co. KG Modulare Heizanlage für ein bewohnbares Fahrzeug
DE102017129031A1 (de) 2017-12-06 2019-06-06 Truma Gerätetechnik GmbH & Co. KG Heizmodul für eine Heizanlage eines bewohnbaren Fahrzeugs
DE102020134204A1 (de) 2020-12-18 2022-06-23 Ebm-Papst St. Georgen Gmbh & Co. Kg Zwangsbelüftungseinheit zur Belüftung eines abgeschlossenen Luftraums

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Publication number Priority date Publication date Assignee Title
US2203491A (en) * 1937-07-13 1940-06-04 American Car & Foundry Co Reversible blower unit
DE1854512U (de) * 1959-11-12 1962-07-05 Nikolaus Laing Motorkuehlung fuer ein querstromgeblaese.
US3305164A (en) * 1959-11-17 1967-02-21 Laing Vortex Inc Fans of the cross-flow type
DE1843765U (de) * 1961-08-03 1961-12-21 Fred Hahn Heizluefter mit radialgeblaese.
DE1948147U (de) * 1966-03-19 1966-10-20 Siemens Elektrogeraete Gmbh Raumheizgeraet.
IL46779A (en) * 1975-03-09 1977-08-31 Glucksman D Electric air-heating element
DD208445A1 (de) * 1982-03-01 1984-05-02 Elektrogeraete Ingbuero Veb Anordnung mit rotierenden ptc-elementen zur heizung und gleichzeitigen foerderung von stroemungsmitteln
GB8719865D0 (en) * 1987-08-22 1987-09-30 Linquartz Heating Ltd Building construction
DE9313789U1 (de) * 1993-09-13 1995-01-12 Elektro-Wärme-Technik Siegfried Petz, Inh. Günter Petz, 90431 Nürnberg Heizlüfter
US7168917B2 (en) * 2003-12-03 2007-01-30 American Standard International Inc. Heat-generating blower housing
DE202006006522U1 (de) * 2005-05-06 2006-08-03 Ebm-Papst St. Georgen Gmbh & Co. Kg Heizaggregat
DE202012013669U1 (de) * 2012-08-02 2019-04-30 Ebm-Papst Mulfingen Gmbh & Co. Kg Aktive Kühlung eines Motors mit integriertem Kühlkanal

Non-Patent Citations (1)

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Title
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Publication number Publication date
EP3184929A1 (fr) 2017-06-28
DE102015016613A1 (de) 2017-06-22

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