WO2018024566A1 - Oven with improved fume extraction - Google Patents

Oven with improved fume extraction Download PDF

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Publication number
WO2018024566A1
WO2018024566A1 PCT/EP2017/068845 EP2017068845W WO2018024566A1 WO 2018024566 A1 WO2018024566 A1 WO 2018024566A1 EP 2017068845 W EP2017068845 W EP 2017068845W WO 2018024566 A1 WO2018024566 A1 WO 2018024566A1
Authority
WO
WIPO (PCT)
Prior art keywords
oven
catalyst
fume
cavity
holder
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.)
Ceased
Application number
PCT/EP2017/068845
Other languages
French (fr)
Inventor
Turgut YERLIKAYA
Levent Oner
Yalcin Yaman
Mehmet Murat MAMATOGLU
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.)
Arcelik AS
Original Assignee
Arcelik AS
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 Arcelik AS filed Critical Arcelik AS
Publication of WO2018024566A1 publication Critical patent/WO2018024566A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C14/00—Stoves or ranges having self-cleaning provisions, e.g. continuous catalytic cleaning or electrostatic cleaning
    • F24C14/02—Stoves or ranges having self-cleaning provisions, e.g. continuous catalytic cleaning or electrostatic cleaning pyrolytic type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2007—Removing cooking fumes from oven cavities
    • F24C15/2014—Removing cooking fumes from oven cavities with means for oxidation of cooking fumes

Definitions

  • the present invention relates to a cooking appliance, in particular to an oven.
  • An oven generally comprises: a cavity for cooking the food: a heating unit for heating the food inside the cavity; a fume extracting unit for extracting the fume from the cavity and for discharging the extracted fume to the outside, wherein the fume extracting unit comprises a catalyst for promoting the oxidation of the extracted fume.
  • DE69501965T2 discloses an oven with an integrated catalyst.
  • the catalyst may become damaged in case of excessive heat. In such instances, the performance of the catalyst degrades, and thus the toxic gases are discharged into the kitchen environment.
  • a problem with the prior art oven is that the catalyst of the fume extracting unit cannot be easily replaced in case of maintenance.
  • An objective of the present invention is to provide an oven which solves the aforementioned problems of the prior art in a cost-effective way and which enables an improved production and assemblage of the fume extracting unit and also an improved fume extraction.
  • the oven of the present invention further comprises a holder which comprises a holding means for releasably holding the catalyst.
  • a major advantageous effect of the present invention is that the catalyst can be easily and quickly replaced through a service person in case of maintenance by virtue of the holder. Thereby, the risk to the health of the user can be eliminated or reduced as much as possible. Thereby the user satisfaction can be increased.
  • Another major advantageous effect of the present invention is that the oven can be easily assembled with or retrofitted with the catalyst, and thus the production cost can be reduced both in terms of labor and material.
  • Figure 1 – is a schematic partial sectional view of an oven according to an embodiment of the present invention.
  • Figure 2 – is a schematic perspective view of the holder of the oven in Fig. 1;
  • Figure 3 – is a schematic side view of the holder in Fig. 2;
  • Figure 4 – is a schematic top view of the holder in Fig. 2;
  • Figure 5 – is a schematic sectional view of the holder in Fig. 4, taken along the line A-A;
  • Figure 6 – is a schematic perspective exploded view of the holder in Fig. 2;
  • Figure 7 – is a schematic exploded side view of the holder in Fig. 2.
  • Screw 16 15b. Screw 16. Fixing means 17. Second screw connection 18. Sheet metal screw 19. Screw bore
  • the oven (1) comprises: a cavity (2) for cooking the food: a heating unit (not shown) for heating the food inside the cavity (2) ; a fume extracting unit (3) for extracting the fume from the cavity (2) and for discharging the extracted fume to the outside, wherein the fume extracting unit (3) comprises: a duct (3a) for conducting the extracted fume; a fan (not shown) for moving the extracted fume inside the duct (3a) ; and a catalyst (4) for promoting the oxidation of the extracted fume (Fig. 1).
  • the oven (1) of the present invention further comprises a holder (5) which comprises a holding means (6) for releasably holding the catalyst (4) (Fig. 1 and Fig. 2).
  • the holding means (6) comprises one or more claws (7) for releasably and resiliently holding the catalyst (4) (Fig. 5 and Fig. 6).
  • one or more claws (7) hold the bottom surface of the catalyst (4)
  • one or more claws (7) hold the top surface of the catalyst (4) (Fig. 5).
  • the holder (5) comprises a chimney (8) for conducting the extracted fume (Fig. 3).
  • the holding means (6) is further adapted to releasably hold the catalyst (4) inside the chimney (8) (Fig. 5)
  • the chimney (8) comprises: an upper part (9) for enclosing the upper half section of the catalyst (4) ; and a lower part (10) for enclosing the lower half section of the catalyst (2) (Fig. 5).
  • the chimney (8) further comprises an attachment means (11) for detachably attaching the upper part (9) to the lower part (10) one above the other (Fig. 6 and Fig. 7).
  • the upper part (9) and the lower part (10) of the chimney (8) each comprises a formed sheet metal (12) (Fig. 6).
  • each formed sheet metal (12) comprises a neck (13) which is adapted to surround the respective upper/lower half section of the catalyst (4) (Fig. 6).
  • the formed sheet metals (12) each has a funnel-like shape (Fig. 6).
  • the attachment means (11) comprises a bayonet connection (14) for detachably attaching the upper part (9) to the lower part (10) (Fig. 6).
  • the bayonet connection (14) comprises one or more cut-outs (14a) and one or more hooks (14b) for engaging with the cut-outs (14a) , wherein the cut-outs (14a) and the hooks (14b) are formed into the formed sheet metal (12) (Fig. 4).
  • the attachment means (11) further comprises a first screw connection (15) for securing the upper part (9) to the lower part (10) (Fig. 4).
  • the formed sheet metals (12) each comprises at least one screw hole (15a) for jointly receiving a screw (15b) (Fig. 6).
  • the oven (1) further comprises: a fixing means (16) for detachably fixing the holder (5) to the cavity (2) (Fig. 6).
  • the fixing means (16) comprises a second screw connection (17) for detachably fixing the holder (5) to the cavity (2) (Fig. 1).
  • the second screw connection (17) comprises one or more sheet metal screws (18) for detachably fixing the holder (5) to the cavity (2) without nuts (Fig. 1).
  • the formed sheet metal (12) and the cavity (2) each comprises one or more screw bores (19) for jointly receiving the respective sheet metal screw (18) (Fig. 6).
  • the catalyst (4) comprises ceramic material.
  • the catalyst (4) is extruded from ceramic material.
  • the necks (13) are circular, and the catalyst (4) has a matching cylindrical shape (Fig. 6).
  • the oven (1) further comprises a pyrolytic function for pyrolysis.
  • a major advantageous effect of the present invention is that the catalyst (4) can be easily and quickly replaced through a service person in case of maintenance by virtue of the holder (5). Thereby, the risk to the health of the user can be eliminated or reduced as much as possible. Thereby the user satisfaction can be increased.
  • Another major advantageous effect of the present invention is that the oven (1) can be easily assembled with or retrofitted with the catalyst (4), and thus the production costs can be reduced both in terms of labor and material.
  • Other advantageous effects of the present invention can be taken from the above-described embodiments.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

The present invention relates to an oven (1) comprising: a cavity (2) for cooking the food: a heating unit for heating the food inside the cavity (2); a fume extracting unit (3) for extracting the fume from the cavity (2) and for discharging the extracted fume to the outside, wherein the fume extracting unit (3) comprises a catalyst (4) for promoting the oxidation of the extracted fume.

Description

OVEN WITH IMPROVED FUME EXTRACTION
The present invention relates to a cooking appliance, in particular to an oven.
Cooking appliances such as ovens are commonly known in the art. An oven generally comprises: a cavity for cooking the food: a heating unit for heating the food inside the cavity; a fume extracting unit for extracting the fume from the cavity and for discharging the extracted fume to the outside, wherein the fume extracting unit comprises a catalyst for promoting the oxidation of the extracted fume.
DE69501965T2 discloses an oven with an integrated catalyst.
In general, the catalyst may become damaged in case of excessive heat. In such instances, the performance of the catalyst degrades, and thus the toxic gases are discharged into the kitchen environment. A problem with the prior art oven is that the catalyst of the fume extracting unit cannot be easily replaced in case of maintenance.
An objective of the present invention is to provide an oven which solves the aforementioned problems of the prior art in a cost-effective way and which enables an improved production and assemblage of the fume extracting unit and also an improved fume extraction.
This objective has been achieved by the oven as defined in claim 1. Further achievements have been attained by the subject-matters respectively defined in the dependent claims.
The oven of the present invention further comprises a holder which comprises a holding means for releasably holding the catalyst.
A major advantageous effect of the present invention is that the catalyst can be easily and quickly replaced through a service person in case of maintenance by virtue of the holder. Thereby, the risk to the health of the user can be eliminated or reduced as much as possible. Thereby the user satisfaction can be increased. Another major advantageous effect of the present invention is that the oven can be easily assembled with or retrofitted with the catalyst, and thus the production cost can be reduced both in terms of labor and material.
Additional features and additional advantageous effects of the oven according to the present invention will become more apparent with the detailed description of the embodiments with reference to the accompanying drawings in which:
Figure 1 – is a schematic partial sectional view of an oven according to an embodiment of the present invention;
Figure 2 – is a schematic perspective view of the holder of the oven in Fig. 1;
Figure 3 – is a schematic side view of the holder in Fig. 2;
Figure 4 – is a schematic top view of the holder in Fig. 2;
Figure 5 – is a schematic sectional view of the holder in Fig. 4, taken along the line A-A;
Figure 6 – is a schematic perspective exploded view of the holder in Fig. 2;
Figure 7 – is a schematic exploded side view of the holder in Fig. 2.
The reference signs appearing on the drawings relate to the following technical features.
  1. Oven
  2. Cavity
  3. Fume extracting unit
3a. Duct
4. Catalyst
5. Holder
6. Holding means
7. Claw
8. Chimney
9. Upper part
10. Lower part
11. Attachment means
12. Formed sheet metal
13. Neck
14. Bayonet connection
14a. Cut-out
14b. Hook
15. First screw connection
15a. Screw hole
15b. Screw
16. Fixing means
17. Second screw connection
18. Sheet metal screw
19. Screw bore
The oven (1) comprises: a cavity (2) for cooking the food: a heating unit (not shown) for heating the food inside the cavity (2); a fume extracting unit (3) for extracting the fume from the cavity (2) and for discharging the extracted fume to the outside, wherein the fume extracting unit (3) comprises: a duct (3a) for conducting the extracted fume; a fan (not shown) for moving the extracted fume inside the duct (3a); and a catalyst (4) for promoting the oxidation of the extracted fume (Fig. 1).
The oven (1) of the present invention further comprises a holder (5) which comprises a holding means (6) for releasably holding the catalyst (4) (Fig. 1 and Fig. 2).
In an embodiment, the holding means (6) comprises one or more claws (7) for releasably and resiliently holding the catalyst (4) (Fig. 5 and Fig. 6). In a version of this embodiment, one or more claws (7) hold the bottom surface of the catalyst (4), and one or more claws (7) hold the top surface of the catalyst (4) (Fig. 5).
In another embodiment, the holder (5) comprises a chimney (8) for conducting the extracted fume (Fig. 3). In this embodiment, the holding means (6) is further adapted to releasably hold the catalyst (4) inside the chimney (8) (Fig. 5)
In another embodiment, the chimney (8) comprises: an upper part (9) for enclosing the upper half section of the catalyst (4); and a lower part (10) for enclosing the lower half section of the catalyst (2) (Fig. 5). In this embodiment, the chimney (8) further comprises an attachment means (11) for detachably attaching the upper part (9) to the lower part (10) one above the other (Fig. 6 and Fig. 7).
In another embodiment, the upper part (9) and the lower part (10) of the chimney (8) each comprises a formed sheet metal (12) (Fig. 6). In this embodiment, each formed sheet metal (12) comprises a neck (13) which is adapted to surround the respective upper/lower half section of the catalyst (4) (Fig. 6). In a version of this embodiment, the formed sheet metals (12) each has a funnel-like shape (Fig. 6).
In another embodiment, the attachment means (11) comprises a bayonet connection (14) for detachably attaching the upper part (9) to the lower part (10) (Fig. 6). In a version of this embodiment, the bayonet connection (14) comprises one or more cut-outs (14a) and one or more hooks (14b) for engaging with the cut-outs (14a), wherein the cut-outs (14a) and the hooks (14b) are formed into the formed sheet metal (12) (Fig. 4).
In another embodiment, the attachment means (11) further comprises a first screw connection (15) for securing the upper part (9) to the lower part (10) (Fig. 4). In a version of this embodiment, the formed sheet metals (12) each comprises at least one screw hole (15a) for jointly receiving a screw (15b) (Fig. 6).
In another embodiment, the oven (1) further comprises: a fixing means (16) for detachably fixing the holder (5) to the cavity (2) (Fig. 6).
In another embodiment, the fixing means (16) comprises a second screw connection (17) for detachably fixing the holder (5) to the cavity (2) (Fig. 1).
In another embodiment, the second screw connection (17) comprises one or more sheet metal screws (18) for detachably fixing the holder (5) to the cavity (2) without nuts (Fig. 1). In a version of this embodiment, the formed sheet metal (12) and the cavity (2) each comprises one or more screw bores (19) for jointly receiving the respective sheet metal screw (18) (Fig. 6).
In another embodiment, the catalyst (4) comprises ceramic material. In a version of this embodiment, the catalyst (4) is extruded from ceramic material. In another version of this embodiment, the necks (13) are circular, and the catalyst (4) has a matching cylindrical shape (Fig. 6).
In another embodiment, the oven (1) further comprises a pyrolytic function for pyrolysis.
A major advantageous effect of the present invention is that the catalyst (4) can be easily and quickly replaced through a service person in case of maintenance by virtue of the holder (5). Thereby, the risk to the health of the user can be eliminated or reduced as much as possible. Thereby the user satisfaction can be increased. Another major advantageous effect of the present invention is that the oven (1) can be easily assembled with or retrofitted with the catalyst (4), and thus the production costs can be reduced both in terms of labor and material. Other advantageous effects of the present invention can be taken from the above-described embodiments.

Claims (12)

  1. An oven (1) comprising: a cavity (2) for cooking the food: a heating unit for heating the food inside the cavity (2); a fume extracting unit (3) for extracting the fume from the cavity (2) and for discharging the extracted fume to the outside, wherein the fume extracting unit (3) comprises a catalyst (4) for promoting the oxidation of the extracted fume, characterized by further comprising: a holder (5) which comprises a holding means (6) for releasably holding the catalyst (4).
  2. The oven (1) according to claim 1, characterized in that the holding means (6) comprises one or more claws (7) for releasably and resiliently holding the catalyst (4).
  3. The oven (1) according to claim 1 or 2, characterized in that the holder (5) comprises: a chimney (8) for conducting the extracted fume, wherein the holding means (6) is further adapted to releasably hold the catalyst (4) inside the chimney (8).
  4. The oven (1) according to claim 3, characterized in that the chimney (8) comprises: an upper part (9) for enclosing the upper half section of the catalyst (4); a lower part (10) for enclosing the lower half section of the catalyst (2); and an attachment means (11) for detachably attaching the upper part (9) to the lower part (10) one above the other.
  5. The oven (1) according to claim 4, characterized in that the upper part (9) and the lower part (10) of the chimney (8) each comprises a formed sheet metal (12), wherein each formed sheet metal (12) comprises a neck (13) which is adapted to surround the respective upper/lower half section of the catalyst (4).
  6. The oven (1) according to claim 4 or 5, characterized in that the attachment means (11) comprises a bayonet connection (14) for detachably attaching the upper part (9) to the lower part (10).
  7. The oven (1) according to any one of claims 4 to 6, characterized in that the attachment means (11) further comprises a first screw connection (15) for securing the upper part (9) to the lower part (10).
  8. The oven (1) according to any one of claims 1 to 7, characterized by further comprising: a fixing means (16) for detachably fixing the holder (5) to the cavity (2).
  9. The oven (1) according to claim 8, characterized in that the fixing means (16) comprises a second screw connection (17) for detachably fixing the holder (5) to the cavity (2).
  10. The oven (1) according to claim 9, characterized in that the second screw connection (17) comprises one or more sheet metal screws (18) for detachably fixing the holder (5) to the cavity (2) without nuts.
  11. The oven (1) according to any one of claims 1 to 10, characterized in that
    the catalyst (4) comprises ceramic material.
  12. The oven (1) according to any one of claims 1 to 11, characterized by further comprising a pyrolytic function.
PCT/EP2017/068845 2016-08-03 2017-07-26 Oven with improved fume extraction Ceased WO2018024566A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201610868 2016-08-03
TRA2016/10868 2016-08-03

Publications (1)

Publication Number Publication Date
WO2018024566A1 true WO2018024566A1 (en) 2018-02-08

Family

ID=59581871

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/068845 Ceased WO2018024566A1 (en) 2016-08-03 2017-07-26 Oven with improved fume extraction

Country Status (1)

Country Link
WO (1) WO2018024566A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69501965T2 (en) 1994-01-12 1998-08-13 Merloni Electromenager Household stove
DE19912453A1 (en) * 1999-03-19 2000-09-21 Bsh Bosch Siemens Hausgeraete Catalyst assembly for a baking oven that is easily removed from the filter housing
EP1136759A2 (en) * 2000-03-21 2001-09-26 AEG Hausgeräte GmbH Baking oven
US20020059930A1 (en) * 1999-02-22 2002-05-23 Gerhard Schmidmayer Catalytic converter for an oven
WO2002081973A1 (en) * 2001-04-06 2002-10-17 Realist Technology, Inc. Clip-mounted catalyst device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69501965T2 (en) 1994-01-12 1998-08-13 Merloni Electromenager Household stove
US20020059930A1 (en) * 1999-02-22 2002-05-23 Gerhard Schmidmayer Catalytic converter for an oven
DE19912453A1 (en) * 1999-03-19 2000-09-21 Bsh Bosch Siemens Hausgeraete Catalyst assembly for a baking oven that is easily removed from the filter housing
EP1136759A2 (en) * 2000-03-21 2001-09-26 AEG Hausgeräte GmbH Baking oven
WO2002081973A1 (en) * 2001-04-06 2002-10-17 Realist Technology, Inc. Clip-mounted catalyst device

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