Extractor hood with speaker

By integrating a loudspeaker housing within the ceiling mount of the extractor hood, the space constraints are addressed, allowing for effective air flow and separation while enabling the integration of loudspeakers for enhanced functionality and sound quality.

DE102021118205B4Active Publication Date: 2025-05-08BERBEL ABLUFTTECHN
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Patent Information

Application Number
DE102021118205
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-07-14
Publication Date
2025-05-08
Estimated Expiration
2041-07-14

AI Technical Summary

Technical Problem

The integration of loudspeakers in extractor hoods is hindered by limited installation space, leading to compromised air flow and separation efficiency due to the need to reduce the size or weight of essential components like fans and separating elements.

Method used

The incorporation of a loudspeaker housing within the ceiling mount of the extractor hood allows for the integration of loudspeakers without compromising the air flow or separation efficiency, as it reduces the weight and size requirements of the extraction housing, enabling a more compact design with improved sound distribution.

Benefits of technology

This solution enables the integration of loudspeakers with associated additional functions without compromising the primary function of the extractor hood, achieving excellent sound quality and separation efficiency while allowing for a more compact and versatile design.

✦ Generated by Eureka AI based on patent content.

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Abstract

Extractor hood (1) for extracting cooking fumes above a hob (2) by means of an airflow (3), with - a fume hood (4) which has at least one air intake opening (5) and at least one air outlet (6) for the airflow (3), - at least one fan arranged in the exhaust housing (4) to generate the airflow (3), - at least one separating element arranged in the exhaust housing (4) in the airflow (3) between the air intake opening (5) and the fan for separating one or more components of the cooking fumes, in particular fat and / or oil, in the airflow (3), wherein the airflow (3) in the exhaust housing (4) is guided from the air intake opening (5) via the separating element to the fan and is blown out of the exhaust housing (3) by the fan via the air outlet (6), and - at least one ceiling bracket (7) for attaching the extractor hood (1) to a ceiling above the cooktop (2), wherein the extractor housing (4) can be arranged suspended freely above the cooktop (2) in a room below the attached ceiling bracket (7) on support cables (8), characterized in that the ceiling bracket (7) has at least one loudspeaker housing (9), wherein at least one loudspeaker (10) is arranged in the loudspeaker housing (9), wherein at least one tweeter and midrange driver (10A) and at least one woofer (10B) of the loudspeaker (10) are integrated in the loudspeaker housing (7), wherein several tweeters and midrange drivers (10A) of the loudspeaker (10) are integrated in the loudspeaker housing (7), wherein the tweeters and midrange drivers (10A) are arranged in a separate housing (11) integrated in the loudspeaker housing (7) and separated from the woofer (10B).
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Description

[0001] The invention relates to an extractor hood for extracting cooking fumes above a cooking hob by means of an air flow, comprising an extractor housing having at least one air intake opening and at least one air outlet for the air flow, at least one fan arranged in the extractor housing for generating the air flow, at least one separating element arranged in the extractor housing in the air flow between the air intake opening and the fan for separating one or more components of the cooking fumes, in particular fat and / or oil, in the air flow, wherein the air flow in the extractor housing is guided from the air intake opening via the separating element to the fan and is blown out of the extractor housing by the fan via the air outlet, and at least one ceiling bracket for fastening the extractor hood to a room ceiling above the cooking hob,The extractor housing can be arranged under the fixed ceiling bracket on supporting cables in a room, freely suspended above the hob.

[0002] Extractor hoods are known from the prior art in which a loudspeaker is integrated into the housing, as disclosed, for example, in DE 10 2015 103 527 A1. This allows the user to be offered many interesting additional functions, which offer differentiation and distinction from other extractor hoods without loudspeakers when making a purchase decision.

[0003] DE 10 2017 104 198 A1 discloses a ceiling mounting device for locking an extractor hood unit in order to attach the extractor hood unit to the ceiling via the ceiling mounting device instead of to cables.

[0004] DE 10 2019 103 548 A1 discloses an extractor hood with an extraction section and a base section for attaching the extractor hood to a ceiling above the cooktop. The extraction section can be arranged below the attached base section, suspended freely above the cooktop, on support cables. The base section is equipped with an energy charging interface for charging an energy storage device in the extraction section in a resting position.

[0005] DE 10 2008 027 470 A1 discloses a height-adjustable extractor hood with a suction chamber housing and a further housing element which is arranged on the ceiling, wherein the further housing element is open at the bottom.

[0006] EP 3 211 326 A1 discloses an extractor hood comprising a shade part and a connecting part which can be fastened to a ceiling for connecting the extractor hood to a power supply and a supporting cable, wherein the shade part hangs on the connecting part via the supporting cable.

[0007] WO 2021 / 076793 A1 discloses a wall-mounted hood with a hood chimney and a decorative strip attached to the upper end of the hood chimney. A loudspeaker is to be arranged in this decorative strip or in the hood chimney.

[0008] DE 20 2008 015 199 U1 discloses an extractor hood that includes a mobile phone docking station. It also discloses a TV with speakers that is incorporated into the extractor hood.

[0009] US 2008 / 0102743 A1 discloses an extractor hood with a frame having a front side, wherein a video screen and speakers are arranged on the front side.

[0010] DE 10 2015 007 687 A1 discloses a light and sound system that can be mounted on the ceiling. A pendant lamp can be suspended from said light and sound system using a connecting rod or similar device.

[0011] DE 1751247 U1 also concerns a loudspeaker which has a support designed as a holder for a hanging lamp.

[0012] CN 211146612 U describes an extractor hood with a ceiling mounting frame, wherein a circular decorative plate is connected to the underside of the ceiling mounting frame, and steel cables pass through the circular decorative plate and are connected to the ceiling mounting frame.

[0013] CN 212585039 U describes an extractor hood with an octagonal ceiling hanger, wherein the underside of the octagonal ceiling hanger is provided with an outwardly curved fold edge and an inwardly curved fold edge, and the outwardly curved fold edge and the inwardly curved fold edge are arranged at intervals.

[0014] EP 3 620 181 A2 describes an extractor hood with a ceiling mount designed to be mounted from below on a kitchen ceiling above a cooktop. Arranged on the underside of the ceiling mount are four retaining means in the form of four cables extending downwards.

[0015] The extractor hood described in WO 2011 / 063969 A1 has a support element with a covering for attachment to a ceiling, which has only an aesthetic function.

[0016] However, arranging speakers in a cabinet suspended from a ceiling mount on suspension cables into a room is disadvantageous, as the installation space in the suspended cabinet is limited, and voluminous speakers can only be installed with constant external dimensions if the separation element or fan is reduced in size. This compromises the primary function of the extractor hood—the separation of one or more components of cooking fumes, particularly grease and / or oil, in the airflow. Therefore, when integrating a speaker into the cabinet, disadvantageous compromises must be made regarding the degree of separation.

[0017] It is therefore an object of the invention to provide an improved extractor hood which enables the integration of a loudspeaker and associated additional functions without the disadvantages described.

[0018] This problem is solved by an extractor hood having the features of claim 1.

[0019] Because the ceiling mount has at least one loudspeaker housing, with at least one loudspeaker arranged in the loudspeaker housing, a loudspeaker and associated additional functions can be easily integrated into the extractor hood mentioned above without having to accept the disadvantages described above. By arranging a loudspeaker in a loudspeaker housing of the ceiling mount, the weight of the extractor housing can be reduced, meaning that the supporting cables on which the extractor housing hangs from the ceiling mount can be smaller. The integration of the loudspeaker in the loudspeaker housing of the ceiling mount also offers sufficient space for the separation element and the fan in the extractor housing hanging below, allowing an excellent degree of separation to be achieved.It is also possible to reduce the external dimensions of the extractor housing, allowing for a more compact design. Reducing the size or weight not only allows for smaller support cables. If the extractor hood is equipped with a motorized height adjustment device for changing the vertical distance of the extractor housing from the cooktop, the drive motor, which winds and unwinds the support cables for height adjustment, can be made smaller. The drums of the height adjustment device, which are driven by the drive motor and onto which the support cables are wound and from which they are unwound, can also be made smaller with smaller support cables. This can save additional weight in the extractor housing if the height adjustment device is integrated into the extractor housing.The speaker enclosure of the ceiling mount can also provide sufficient air volume, thus improving the speaker's sound. Furthermore, when the speaker is integrated into the ceiling mount, changing the vertical distance between the extractor housing and the hob does not affect the speaker's position relative to the user. Therefore, the location of the sound no longer changes with changes in the vertical distance between the extractor housing and the hob and the listener. The distance of the speaker from the user remains the same, so the speaker's sound remains the same even when the vertical distance between the extractor housing and the hob changes.By integrating the speaker into the ceiling mount, the sound reflection behavior on the ceiling remains the same even when the vertical distance between the extractor hood and the cooktop changes. This allows the speaker located in the speaker housing of the ceiling mount to generate excellent sound in the room by attaching the ceiling mount to the ceiling.

[0020] The invention provides for at least one tweeter, midrange driver, and at least one woofer to be integrated into the loudspeaker enclosure. The tweeter, midrange driver, and the separate woofer allow for an excellent sound image across a wide frequency range, allowing the loudspeaker integrated into the ceiling mount to satisfactorily deliver a wide range of sounds to even the most demanding listeners.

[0021] The invention relates to the integration of multiple tweeters and midrange speakers into the loudspeaker cabinet. With appropriate alignment of the tweeters and midrange speakers, the sound can be distributed evenly throughout the entire room. This allows the room, in which the extractor hood is mounted to the ceiling via the ceiling mount, to receive very even sound.

[0022] The invention provides for the tweeters and midrange drivers to be arranged in a separate enclosure integrated into the loudspeaker cabinet and separated from the woofer. The separate arrangement of the tweeters and midrange drivers in individual enclosures separate from the woofer allows the volumes of the individual enclosures to be tuned to the operating points or resonance frequencies of the individual tweeters and midrange drivers.

[0023] Advantageous embodiments and further developments of the invention emerge from the dependent claims. It should be noted that the features listed individually in the claims can also be combined with one another in any technologically expedient manner, thus revealing further embodiments of the invention.

[0024] According to an advantageous embodiment of the invention, a playback device with an amplifier for outputting audio signals via the speaker is integrated into the loudspeaker housing. The integration of the playback device and the amplifier in the loudspeaker housing enables short and simple cabling of the components in the ceiling mount. The playback device in the ceiling mount can advantageously be operated via a remote control or a smartphone, etc.

[0025] A particularly advantageous embodiment of the invention provides for a total of four tweeters and midrange speakers to be integrated into the speaker cabinet. With appropriate alignment, the four tweeters and midrange speakers can distribute the sound particularly evenly throughout the entire room. This allows for a very uniform sound distribution throughout the living room, where the extractor hood is mounted to the ceiling via the ceiling mount.

[0026] An advantageous embodiment of the invention provides that the four tweeters and midrange speakers are arranged in a plane parallel to the ceiling within a rectangle in the loudspeaker cabinet, with the woofer being arranged on the diagonals of the rectangle. The four tweeters and midrange speakers arranged in a rectangle below the ceiling allow the sound to be distributed particularly evenly throughout the room, with the woofer in the center of this rectangle distributing the lower frequency range particularly well. The rectangular arrangement around the woofer also enables stereo sound to be directed in all directions in the room by the tweeters and midrange speakers in the higher and middle frequencies, so that the sound in this frequency spectrum is distributed evenly throughout the room and a stereo sound can be achieved at the same time.

[0027] A particularly advantageous design is one in which the woofer is positioned centrally in the loudspeaker cabinet, with the tweeters and midrange drivers arranged symmetrically around the woofer. The symmetrical arrangement of the tweeters and midrange drivers around the centrally positioned woofer allows the sound to be distributed evenly throughout the room across a wide frequency spectrum.

[0028] According to a preferred embodiment of the invention, the tweeters and midrange drivers are wired in parallel. This parallel wiring of the tweeters and midrange drivers offers the possibility of achieving the positive effects of a parallel array of radiators. This allows for a virtual enlargement of the effective loudspeaker membrane, thus homogenizing the sound front, and thus reducing the load on the individual tweeters and midrange drivers, as well as a corresponding increase in efficiency at low frequencies. The tweeters and midrange drivers wired in parallel can generate higher sound pressure than the individual tweeters and midrange drivers.This sound pressure is comparable to that of a larger tweeter and midrange speaker, however, a larger tweeter and midrange speaker also requires more installation space and by using several smaller tweeters and midrange speakers wired in parallel, a uniform surround sound with a high sound pressure can be created by appropriately aligning the tweeters and midrange speakers wired in parallel.

[0029] A particularly advantageous embodiment is one in which at least one electronic unit is provided, designed to delay the frequencies of the tweeters and midrange speakers to create a directional pattern. By controlling the tweeters and midrange speakers separately, the shape of the directional pattern, i.e., the primary listening direction, can be influenced via the electronic unit. This makes it possible to create several areas with different volume levels around the extractor hood in the room. For example, in open-plan living areas, the kitchen area can receive more sound than the dining area or the TV and reading area, or vice versa.Using the directional characteristics created in this way, the user of the extractor hood can select the areas to be sounded at different volume levels, so that the output of audio signals can be directed to the desired area of ​​the room, while other areas receive significantly less sound.

[0030] A particularly advantageous embodiment of the invention provides that the loudspeaker enclosure provides a volume for the woofer, which is designed to be excited into vibration by the woofer's resonant frequencies together with reflex tubes built into the loudspeaker enclosure. With the volume for the woofer, the loudspeaker enclosure of the ceiling mount offers a high sound pressure level, especially at lower frequencies, allowing for excellent reproduction of a very broad frequency spectrum.

[0031] An advantageous embodiment provides for two reflex tubes to be arranged in a first line parallel to the ceiling with the woofer in the loudspeaker cabinet. The two reflex tubes arranged in a first line parallel to the woofer allow the sound pressure at lower frequencies to be distributed particularly evenly throughout the room.

[0032] According to a preferred embodiment of the invention, the reflex tubes are arranged on a second line parallel to the ceiling in the loudspeaker cabinet between two tweeters and midrange drivers, with the first line and the second line being arranged in a plane parallel to the ceiling. By arranging the reflex tubes between the tweeters and midrange drivers, uniform sound distribution in all directions across a broad frequency spectrum can be achieved.

[0033] A particularly advantageous embodiment provides for at least one crossover integrated into the loudspeaker housing, which is designed to separately transmit frequency components of the audio signals to the tweeter, midrange, and / or woofer. The crossover divides the audio signal among several tweeters, midrange, and / or woofers depending on the pitch, i.e., the frequency, so that a very broad frequency spectrum is covered by the loudspeaker integrated into the ceiling mount.

[0034] Further features, details, and advantages of the invention will become apparent from the following description and the drawings, which show an exemplary embodiment of the invention. Corresponding objects or elements are provided with the same reference numerals in all figures. They show: Fig. 1 extractor hood according to the invention above a hob, Fig. 2 raised extractor hood, Fig. 3 perspective view of the extractor hood, Fig. 4 perspective view into the loudspeaker cabinet, Fig. 5 Top view of the loudspeaker cabinet, Fig. 6 View from below of the ceiling mount, Fig. 7 perspective view from below of the ceiling mount, and Fig. 8 Ceiling mount with a cover plate.

[0035] In the Fig. 1, designated by reference numeral 1, shows an extractor hood according to the invention. The extractor hood 1 serves to extract cooking fumes above a cooking surface 2 by means of an air stream 3. In the exemplary embodiment, the extractor hood 1 has a height-adjustable extractor housing 4, which has an air intake opening 5 and an air outlet 6 ( Fig. 3) for the air flow 3. In the extractor housing 4 there is at least one fan (not shown) for generating the air flow 3 ( Fig. 1). In addition, a separation element (not shown) is arranged in the extractor housing 4, which serves to separate one or more components of the cooking fumes, in particular fat and / or oil, from the air stream 3. This separation element is arranged in the extractor housing 4 between the air intake opening 5 and the fan in the air stream 3. The air stream 3 is guided in the housing 4 from the air intake opening 5 via the separation element to the fan. From the fan, the air stream 3 is then discharged via the air outlet 6 ( Fig. 3) is blown out of the extractor housing 3. The extractor hood 1 also has a motor-driven height adjustment device for changing the vertical distance of the extractor hood 1 from the hob 2. In the exemplary embodiment, the height adjustment device is designed as a winding device for winding the support cables 8, via which the extractor housing 4 of the extractor hood 1 is connected to a ceiling mount 7. By winding and unwinding the support cables 8 via a motor of the height adjustment device arranged in the extractor housing 3, the vertical distance of the extractor hood 1 from the hob 2 can be changed very easily by lowering the extractor housing 4 from the ceiling mount 7, as shown in Fig. 1, or is pulled up again using the height adjustment device, as shown in Fig. 2 can be seen.

[0036] The Fig. 3 shows the extractor hood according to the Fig. 1 and Fig. 2 in a perspective view. In this illustration, it is clearly visible that the ceiling bracket 7 for attaching the extractor hood 1 to a ceiling above the hob 2 ( Fig. 1) has a loudspeaker housing 9 in which a loudspeaker 10 is integrated. The loudspeaker housing 9 is open towards the ceiling, so that a view into the volume 12 ( Fig. 4) of the loudspeaker cabinet 9 and to the back of the woofer chassis 10B. When the ceiling mount 7 is attached to the ceiling above the hob 2 ( Fig. 1) is the open area 14, which provides a view of the rear of the woofer chassis 10B ( Fig. 4) is covered by the room ceiling. Additional functions, such as playing music or sound from, for example, cooking programs, or the voice output of voice assistants such as Siri or Alexa, can be easily integrated into the aforementioned extractor hood 1 via the loudspeaker 10 in the loudspeaker housing 9 of the ceiling mount 7. For this purpose, a playback device with an amplifier for outputting audio signals via the loudspeaker 10 is advantageously integrated into the loudspeaker housing 9.

[0037] In Fig. 4 shows a perspective view into the loudspeaker housing 9 of the ceiling mount 7, where Fig. 3 the upper cover of the loudspeaker housing 9 has been removed in a sectional view to provide a view into the volume 12 of the loudspeaker housing 9. The volume 12 in the loudspeaker housing 9 is available for the woofer 10B. This volume 12 is excited to vibrate by the resonance frequencies of the woofer 10B together with the reflex tubes 13 built into the loudspeaker housing 9 in order to generate a full sound in the lower frequency spectrum. As can be seen, the woofer 10B is arranged centrally in the loudspeaker housing 9. Also integrated into the loudspeaker housing 9 are several individual housings 11, which are separated from the volume 12 of the woofer 10B. In these individual housings 11, tweeters and midrange speakers 10A ( Fig. 5) integrated into the loudspeaker housing 9.

[0038] The Fig. 5 provides a top view of the loudspeaker housing 9 according to Fig. 4. Here you can see that a total of four tweeters and midrange drivers 10A are integrated into the loudspeaker cabinet 9 in the individual cabinets 11. These tweeters and midrange drivers 10A are arranged symmetrically around the woofer 10B. The tweeters and midrange drivers 10A form a radiator array composed of several small individual chassis, generating the same sound pressure as an equivalent large loudspeaker chassis. The tweeters and midrange drivers 10A can be wired in parallel for this purpose. By wiring the chassis of the tweeters and midrange drivers 10A in parallel and the associated identical movement upon signal input, a virtual large-area loudspeaker is created by many small tweeters and midrange drivers 10A. This reduces the electrical and mechanical load on the tweeters and midrange drivers 10A, which has a positive effect on the level reserves and service life.This also makes the reproduction of lower frequencies more efficient, as these frequencies normally require relatively powerful drives / chassis; here, however, this load is distributed across the four tweeters and midrange speakers 10A. Electronics designed to delay the frequencies of the tweeters and midrange speakers 10A can also be provided to create a directional pattern. This would make it possible to create areas with different volume levels around the extractor hood 1. The volumes inside the loudspeaker cabinet 9 are designed for the operating points or resonance frequencies of the individual tweeters and midrange speakers 10A and the woofer 10B. The volume 12 of the centrally positioned woofer 10B vibrates at its resonance frequency together with the built-in reflex tubes 13, thereby increasing the level at lower frequencies.

[0039] In Fig. 6, the ceiling mount 7 is connected to the loudspeaker housing 9 according to Fig. 5 from below. Here you can see that the four tweeters and midrange speakers 10A are arranged in a plane E ( Fig. 1) are arranged within a rectangle R, shown here in dashed lines, in the loudspeaker cabinet symmetrically to the woofer 10B, so that the woofer 10B is arranged on the diagonals D, shown here in dash-dotted lines, of the rectangle R in the plane E ( Fig. 1). By attaching the ceiling bracket 7 to the ceiling above the hob 2 ( Fig. 1), the distance of the loudspeaker 10 from the listener always remains the same, and thus also the sound image. However, when the loudspeaker 10 is integrated into the extractor housing 4, the reflection behavior of the sound on the ceiling changes with the vertical position of the extractor housing 4 above the hob 2 ( Fig. 1). If the extractor hood 1 is placed on the ceiling mount 7 in the center of an open-plan living area, omnidirectional sound propagation is enabled, allowing all nearby occupants to perceive the sound equally. With the described arrangement of the tweeters and midrange drivers 10A and the woofer 10B, the sound from the loudspeaker 10 can propagate particularly spherically or symmetrically. For this purpose, the four midrange / tweeter drivers 10A are arranged in the corners of the loudspeaker cabinet 9 to achieve the positive effects of a parallel array of radiators. These effects include a virtual enlargement of the effective loudspeaker membrane, thus homogenizing the sound front, and thus reducing the load on the tweeters and midrange drivers 10A, as well as the associated increase in efficiency at low frequencies.

[0040] The Fig. 7 shows a perspective view from below of the ceiling mount 7 according to Fig. 6. In this illustration, a first line L1 is shown in dot-dashed lines. On this first line L1, which runs parallel to the ceiling, the two reflex tubes 13 are arranged, with the woofer 10B between them in the loudspeaker cabinet 9. Two further lines L2 are also shown in dotted lines in this illustration. On these lines L2, which run parallel to the ceiling, the reflex tubes 13 are arranged in the loudspeaker cabinet 7 between two tweeters and midrange speakers 10A. The lines L1 and L2 are in the plane E ( Fig. 1) arranged.

[0041] This level E is defined according to the Fig. 8 is covered by a cover plate 15. This cover plate 15 has small holes through which the sound of the loudspeaker 10 ( Fig.3) can spread freely throughout the room. The cover plate 10 is a perforated sheet metal cover with fine perforations. List of reference symbols 1 extractor hood 2 hobs 3 Airflow 4 trigger housing 5 Air intake opening 6 Air outlet 7 Ceiling mount 8 suspension cables 9 speaker cabinets 10 speakers, 10A tweeters and midrange speakers, 10B woofers 11 individual housings 12 volumes 13 reflex tubes 14 Open area 15 Cover plate E Level R Rectangle D diagonal L1 first line L2 second line

Claims

[1] Extractor hood (1) for extracting cooking fumes above a cooking surface (2) by means of an air flow (3), with - an extractor housing (4) having at least one air intake opening (5) and at least one air outlet (6) for the air flow (3), - at least one fan arranged in the extractor housing (4) for generating the air flow (3), - at least one separating element arranged in the extractor housing (4) in the air flow (3) between the air intake opening (5) and the fan for separating one or more components of the cooking fumes, in particular fat and / or oil, in the air flow (3), wherein the air flow (3) in the extractor housing (4) is guided from the air intake opening (5) via the separating element to the fan and is blown out of the extractor housing (3) by the fan via the air outlet (6), and - at least one ceiling bracket (7) for fastening the extractor hood (1) to a room ceiling above the hob (2), wherein the extractor housing (4) can be arranged below the fixed ceiling bracket (7) on supporting cables (8) in a room suspended above the hob (2), characterized by in that the ceiling mount (7) has at least one loudspeaker housing (9), wherein at least one loudspeaker (10) is arranged in the loudspeaker housing (9), wherein at least one tweeter and midrange speaker (10A) and at least one woofer (10B) of the loudspeaker (10) are integrated in the loudspeaker housing (7), wherein a plurality of tweeters and midrange speakers (10A) of the loudspeaker (10) are integrated in the loudspeaker housing (7), wherein the tweeters and midrange speakers (10A) are arranged in an individual housing (11) integrated in the loudspeaker housing (7) and separated from the woofer (10B). [2] Extractor hood (1) according to claim 1, characterized bythat a playback device with an amplifier for outputting audio signals via the loudspeaker (10) is integrated in the loudspeaker housing (7). [3] Extractor hood (1) according to claim 1 or 2, characterized by that a total of four tweeters and midrange speakers (10A) of the loudspeaker (10) are integrated in the loudspeaker housing (7) [4] Extractor hood (1) according to claim 3, characterized by that the four tweeters and midrange speakers (10A) are arranged in a plane (E) parallel to the ceiling within a rectangle (R) in the loudspeaker housing (7), the woofer (10B) being arranged on the diagonals (D) of the rectangle (R) in the plane (E). [5] Extractor hood (1) according to one of the preceding claims, characterized by that the woofer (10B) is arranged centrally in the loudspeaker housing (7), and the tweeter and midrange speakers (10A) are arranged symmetrically around the woofer (10B). [6] Extractor hood (1) according to one of the preceding claims, characterized by that the tweeter and midrange speakers (10A) are wired in parallel. [7] Extractor hood (1) according to one of the preceding claims, characterized by that at least one electronic unit is provided which is designed to delay the frequencies of the tweeters and midrange speakers (10A) in order to generate a directional characteristic. [8] Extractor hood (1) according to one of the preceding claims, characterized by that the loudspeaker housing (7) provides a volume (12) for the woofer (10B), which is designed to be excited to oscillate by resonance frequencies of the woofer (10B) together with reflex tubes (13) built into the loudspeaker housing (7). [9] Extractor hood (1) according to claim 8, characterized by that two reflex tubes (13) are arranged on a first line (L1) parallel to the ceiling with the woofer (10B) in the loudspeaker housing (7). [10] Extractor hood (1) according to claim 9, characterized in that the reflex tubes (13) are arranged on a second line (L2) parallel to the ceiling in the loudspeaker housing (7) between two tweeters and midrange speakers (10A), wherein the first line (L1) and the second line (L2) are arranged in a plane (E) parallel to the ceiling. [11] Extractor hood (1) according to one of the preceding claims, characterized by that at least one crossover network is integrated in the loudspeaker housing (9), which is designed to pass on frequency components of the audio signals separately to the tweeter, midrange (10A) and / or woofer (10B).

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