Optional fan system and integrated stove with the same

Abstract

The present invention provides an optional fan system and an integrated cooking stove having the same, belonging to the technical field of kitchen appliances. The optional fan system includes a wind box assembly, a wind cabinet and a connecting assembly. Among them, the wind box assembly includes a wind box, the wind cabinet is arranged in the middle of the interior of the wind box, and the connecting assembly includes a first fixing part and a second fixing part which are detachably connected. The first fixing part is fixedly connected to the wind box, and the second fixing part is fixedly connected to the wind cabinet; the first fixing part is provided with a plurality of first fixing part mounting holes, the second fixing part is provided with second fixing part mounting holes, and the second fixing part mounting holes cooperate with different first fixing part mounting holes to realize the installation of wind cabinets of different sizes. The present invention can install wind cabinets of different sizes in the same wind box assembly to adjust parameters such as the air volume, noise, and air pressure of the fan system.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and particularly relates to an optional fan system and an integrated stove having the same. Background Art

[0002] With the increasing requirements of people for a comfortable kitchen environment, the integrated stove has been more and more favored by people due to its advantages such as close to the smoke source, strong suction, low noise, and high integration, and is an important component of the integrated kitchen. The fan system of the integrated stove, as an important part of the integrated stove, plays an important role in ventilation and smoking.

[0003] At present, the performance parameters of the fan system on the market are fixed and non-selectable, which brings inconvenience to many customers. For example, some users need a large air volume, some need low noise or high static pressure. To meet the diverse needs of customers, some manufacturers provide high and low performance configurations with the same air volume but different noise levels, generally by the presence or absence of noise reduction and sound absorption cotton. This undoubtedly increases the economic pressure on users who need low noise, and cannot meet the needs of some users who require a large air volume and high static pressure. Summary of the Invention

[0004] The purpose of the present invention is to provide an optional fan system that can install wind cabinets of different sizes in the same air box assembly to regulate parameters such as the air volume, noise, and air pressure of the fan system.

[0005] The purpose of the present invention is to provide an integrated stove.

[0006] To achieve the purpose of the present invention, the present invention adopts the following technical solutions:

[0007] According to the first aspect of the present invention, an optional fan system is provided. The optional fan system includes:

[0008] An air box assembly including an air box;

[0009] A wind cabinet disposed in the middle of the interior of the air box;

[0010] A connection assembly including a first fixing part and a second fixing part that are detachably connected. Among them, the first fixing part is fixedly connected to the air box, and the second fixing part is fixedly connected to the wind cabinet;

[0011] Among them, the first fixing part is provided with a plurality of first fixing part mounting holes, the second fixing part is provided with second fixing part mounting holes, and the second fixing part mounting holes cooperate with different first fixing part mounting holes to realize the installation of wind cabinets of different sizes.

[0012] According to an embodiment of the present invention, the bellow includes a first side plate, a second side plate, a third side plate, and a fourth side plate connected in sequence. The second fixing part includes two air cabinet brackets, and the first fixing part includes an L-shaped support plate group corresponding to the air cabinet brackets. The air cabinet brackets are detachably connected to the L-shaped support plate group.

[0013] According to an embodiment of the present invention, the air cabinet bracket includes:

[0014] A U-shaped fixing plate sleeved on the outer periphery of the air cabinet and fixedly connected to the air cabinet;

[0015] A connecting plate located above the L-shaped support plate group;

[0016] Wherein, the L-shaped support plate group includes two symmetrically arranged L-shaped support plates, and the two L-shaped support plates are respectively fixedly connected to the first side plate and the third side plate. A plurality of first fixing part mounting holes are provided in the horizontal part of the L-shaped support plate, and second fixing part mounting holes are provided at both ends of the connecting plate.

[0017] According to an embodiment of the present invention, the connecting plate close to the air cabinet side is fixedly connected to the U-shaped fixing plate, and a reinforcing rib is provided between the U-shaped fixing plate and the connecting plate.

[0018] According to an embodiment of the present invention, a flanging is provided at the end of the connecting plate away from the air cabinet to enhance the structural strength of the air cabinet bracket;

[0019] A convex rib is provided in the middle of the connecting plate to enhance the compressive strength of the connecting plate.

[0020] According to an embodiment of the present invention, the bellow includes a smoke inlet, and the air cabinet includes an air inlet end and an air outlet end. Among them, the air inlet end communicates with the smoke inlet, the air outlet end communicates with an air outlet seat, and the axis of the air outlet section of the air outlet seat is parallel to the horizontal plane to blow out the oil fume horizontally.

[0021] According to an embodiment of the present invention, an air cabinet flange is provided at the outlet end of the air cabinet. External threads are provided on the outer periphery of the air cabinet flange, and threaded holes are provided on the second side plate so that the air cabinet flange is threadedly connected to the second side plate.

[0022] According to an embodiment of the present invention, the thickness of the bellow is L, the thickness of the air cabinet is H, and the single-side distance between the air cabinet and the bellow is S. Wherein, S = (L - H) / 2, and the ratio of S to H is 0.15 to 0.69 to reduce the noise of the fan system.

[0023] According to an embodiment of the present invention, the ratio of S to H is 0.25 - 0.40.

[0024] According to an embodiment of the present invention, the ratio of S to H is 0.33;

[0025] When the thickness of the air box is constant and the ratio of S to H is less than or equal to 0.33, the noise of the fan system decreases as the ratio of S to H increases;

[0026] When the thickness of the air box is constant and the ratio of S to H is greater than 0.33, the noise of the fan system increases as the ratio of S to H increases.

[0027] According to a second aspect of the present invention, an integrated stove is provided. The integrated stove includes: the optional fan system described in any one of the first aspects of the present invention.

[0028] One embodiment of the present invention has the following advantages or beneficial effects:

[0029] The optional fan system of the present invention and the integrated stove having the same can install wind cabinets of different sizes in the same air box assembly to adjust parameters such as the air volume, noise, and air pressure of the fan system.

[0030] There is a certain difference between the noise of the fan system and the ratio of the unilateral distance to the thickness of the wind cabinet. By controlling the ratio value of the unilateral distance to the thickness of the wind cabinet, the noise of the fan system can be effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] By referring to the accompanying drawings and describing its exemplary embodiments in detail, the above and other features and advantages of the present invention will become more apparent.

[0032] Figure 1 is a schematic diagram of an optional fan system shown according to an exemplary embodiment.

[0033] Figure 2 is a cross-sectional view of an optional fan system shown according to an exemplary embodiment.

[0034] Figure 3 is a longitudinal sectional view of an optional fan system shown according to an exemplary embodiment.

[0035] Figure 4 is Figure 3 an enlarged view of part A in

[0036] Figure 5 is a connection schematic diagram of an air box, a wind cabinet, and a connection component shown according to an exemplary embodiment.

[0037] Figure 6It is a schematic connection diagram of a wind cabinet and a connection component shown according to an exemplary embodiment.

[0038] Figure 7 It is a schematic diagram of a wind cabinet bracket shown according to an exemplary embodiment.

[0039] Figure 8 It is a schematic diagram showing the change of sound pressure level with the ratio of S and H under two kinds of air box thicknesses shown according to an exemplary embodiment.

[0040] Among them, the description of the reference numerals is as follows:

[0041] 1. Air box assembly; 11. Air box; 111. First side plate; 112. Second side plate; 113. Third side plate; 114. Fourth side plate; 2. Wind cabinet; 21. Wind cabinet flange; 3. Connection component; 31. First fixing part; 311. L-shaped support plate; 32. Second fixing part; 321. Wind cabinet bracket; 3211. U-shaped fixing plate; 3212. Connecting plate; 3213. Reinforcing rib; 3214. Flange; 3215. Rib; 4. Air outlet seat. Detailed implementation manners

[0042] Now, the exemplary embodiments will be described more comprehensively with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in various forms and should not be construed as limited to the embodiments set forth herein; on the contrary, these embodiments are provided so that this invention will be thorough and complete, and the concept of the exemplary embodiments will be fully conveyed to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted.

[0043] The terms "a", "an", "the", and "said" are used to denote the presence of one or more elements / components / etc.; the terms "comprising" and "having" are used to mean an open inclusion and refer to the presence of additional elements / components / etc. in addition to the listed elements / components / etc.

[0044] As Figures 1 to 8 shown, Figure 1 it shows a schematic diagram of the optional fan system provided by the present invention. Figure 2 It is a cross-sectional view of the optional fan system shown according to an exemplary embodiment; Figure 3 it shows a longitudinal sectional view of the optional fan system provided by the present invention. Figure 4 It is Figure 3 an enlarged view of part A in Figure 5 It shows a schematic connection diagram of the air box 11, the wind cabinet 2 and the connection component 3 provided by the present invention. Figure 6 It shows a schematic connection diagram of the wind cabinet 2 and the connection component 3 provided by the present invention. Figure 7The schematic diagram of the air cabinet bracket 321 provided by the present invention is shown. Figure 8 The schematic diagram showing the variation of the sound pressure level with the ratio of S and H under two air box thicknesses provided by the present invention is shown.

[0045] An optional fan system according to an embodiment of the present invention, the optional fan system includes:

[0046] An air box assembly 1, including an air box 11;

[0047] An air cabinet 2, arranged in the middle of the interior of the air box 11;

[0048] A connection assembly 3, including a first fixing part 31 and a second fixing part 32 which are detachably connected, wherein, the first fixing part 31 is fixedly connected to the air box 11, and the second fixing part 32 is fixedly connected to the air cabinet 2;

[0049] Wherein, the first fixing part 31 is provided with a plurality of first fixing part mounting holes, the second fixing part 32 is provided with second fixing part mounting holes, and the second fixing part mounting holes cooperate with different first fixing part mounting holes to realize the installation of air cabinets 2 of different sizes.

[0050] Wherein, the air cabinet 2 is arranged in the middle of the air box 11, the first fixing part fixed on the air box 11 and the second fixing part fixed on the outer periphery of the air cabinet 2 are assembled to realize the installation of the air cabinet 1 and the air box 11. In this embodiment, mainly a plurality of first fixing part mounting holes are provided in the first fixing part 31, and second fixing part mounting holes are provided in the second fixing part 32. The second fixing part mounting holes cooperate with different first fixing part mounting holes to realize the installation of air cabinets 2 of different sizes. In this way, the same air box assembly 1 can install air cabinets 2 with different thicknesses. As the thickness of the air cabinet 2 changes, the one-sided air inlet distance of the air cabinet 2 is different, and further the air volume, noise, and air pressure of the fan system are all different. The present invention can realize the selection and matching of different sizes of air cabinets 2 for the same air box assembly 1 to adjust parameters such as the air volume, noise, and air pressure of the fan system.

[0051] In a preferred embodiment of the present invention, the air box 11 includes a first side plate 111, a second side plate 112, a third side plate 113, and a fourth side plate 114 which are connected in sequence. The second fixing part 32 includes two air cabinet brackets 321, the first fixing part 31 includes an L-shaped support plate group corresponding to the air cabinet brackets 321, and the air cabinet brackets 321 are detachably connected to the L-shaped support plate group.

[0052] As Figures 4 - 6 shown, the first fixing part 31 includes two L-shaped support plate groups, and the L-shaped support plate groups are connected between the first side plate 111 and the third side plate 113. During installation, only by assembling the air cabinet brackets 321 with the L-shaped support plate groups, the connection between the air cabinet 2 and the air box 11 can be completed, and the installation is simple and convenient for maintenance.

[0053] In a preferred embodiment of the present invention, the air handling unit bracket 321 includes:

[0054] A U-shaped fixing plate 3211, sleeved on the outer periphery of the air handling unit 2 and fixedly connected to the air handling unit 2;

[0055] A connecting plate 3212, located above the L-shaped support plate group;

[0056] Wherein, the L-shaped support plate group includes two symmetrically arranged L-shaped support plates 311, the two L-shaped support plates 311 are respectively fixedly connected to the first side plate 111 and the third side plate 113, a plurality of first fixing part mounting holes are formed in the horizontal part of the L-shaped support plate 311, and second fixing part mounting holes are formed at both ends of the connecting plate 3212.

[0057] As Figures 4 - 6 shown, both ends of the connecting plate 3212 are respectively lapped on the two symmetrically arranged L-shaped support plates 311, and by aligning the second fixing part mounting holes on the connecting plate 3212 with the corresponding first fixing part mounting holes, the alignment and fixation of the connecting plate 3212 and the L-shaped support plate group can be achieved, with a simple structure and convenient installation.

[0058] In a preferred embodiment of the present invention, the connecting plate 3212 close to the air handling unit 2 is fixedly connected to the U-shaped fixing plate 3211, and a reinforcing rib 3213 is arranged between the U-shaped fixing plate 3211 and the connecting plate 3212.

[0059] As Figure 5 shown, the bottom of the U-shaped fixing plate 3211 and the connecting plate 3212 adopt an integrally formed connection method. At the same time, the reinforcing rib 3213 is used to increase the connection strength between the U-shaped fixing plate 3211 and the connecting plate 3212, preventing the situation of unstable connection of the air handling unit 2 when the wind pressure is relatively large.

[0060] In a preferred embodiment of the present invention, a flanging 3214 is arranged at the end of the connecting plate 3212 far from the air handling unit 2 to enhance the structural strength of the air handling unit bracket 321;

[0061] A convex rib 3215 is arranged in the middle of the connecting plate 3212 to enhance the compressive strength of the connecting plate 3212.

[0062] As Figures 4 - 5 shown, both ends of the connecting plate 3212 are respectively lapped on the horizontal parts of the two symmetrically arranged L-shaped support plates 311. The flanging 3214 can effectively enhance the structural strength of the air handling unit bracket 321, and the convex rib 3215 can increase the compressive strength of the connecting plate 3212 and improve the load-bearing performance of the connecting plate 3212.

[0063] In a preferred embodiment of the present invention, the bellows 11 includes a smoke inlet, the air cabinet 2 includes an air inlet end and an air outlet end, wherein the air inlet end communicates with the smoke inlet, and the air outlet end communicates with an air outlet seat 4. The axis of the air outlet section of the air outlet seat 4 is parallel to the horizontal plane to blow out the oil fume horizontally.

[0064] As Figures 1 - 3 shown, the smoke inlet of the bellows 11 communicates with the air inlet of the integrated range hood. The unilateral distance S between the air cabinet 2 and the bellows 11 connects the smoke inlet of the bellows 11 and the air inlet of the air cabinet 2 to form an air inlet passage, which can suck in the oil fume outside the integrated range hood. Then, the air cabinet 2 blows the sucked oil fume outside the air outlet seat 4. It is not difficult to see from the figure that the air outlet section of the air outlet seat 4 in this embodiment is a rectangular body, and the axis of the air outlet section of the air outlet seat 4 is parallel to the horizontal plane, so that the oil fume can be blown out horizontally, effectively reducing the noise of the fan system. In this embodiment, the outer contours of the air cabinet flanges 21 on the air cabinets 2 of different sizes are the same, and the positions of the flange mounting holes opened on the air cabinet flanges 21 are also the same, so that air cabinets 2 of different sizes can be connected to the same air outlet seat 4, ensuring the connection relationship between different air cabinets 2 and the same bellows 1 and air outlet seat 4.

[0065] In a preferred embodiment of the present invention, an air cabinet flange 21 is provided at the outlet end of the air cabinet 2. An external thread is provided on the outer periphery of the air cabinet flange 21, and a threaded hole is provided on the second side plate 112 so that the air cabinet flange 21 is threadedly connected to the second side plate 112.

[0066] As Figures 2 - 3 shown, an air cabinet flange 21 is provided at the outlet end of the air cabinet 2, and the air cabinet flange 21 is threadedly connected to the second side plate 112. On the one hand, it can provide a certain supporting force for the air cabinet 2 and form a three-point support at the connection with the two air cabinet brackets 321, making the installation of the air cabinet 2 more stable. On the other hand, it can limit the air outlet direction of the air cabinet 2 and reduce the influence of the air outlet direction of the air cabinet 2 on the performance of the integrated range hood. In this embodiment, as long as the outer contours of the air cabinet flanges 21 on the air cabinets 2 of different sizes are the same, the connection with the threaded holes on the second side plate 112 can be realized.

[0067] In a preferred embodiment of the present invention, the thickness of the bellows 11 is L, the thickness of the air cabinet 2 is H, and the unilateral distance between the air cabinet 2 and the bellows 11 is S, wherein S = L - H / 2, and the ratio of S to H is 0.15 to 0.69 to reduce the noise of the fan system.

[0068] In a preferred embodiment of the present invention, the ratio of S to H is 0.25 - 0.40.

[0069] In a preferred embodiment of the present invention, the ratio of S to H is 0.33;

[0070] When the thickness of the air box 11 is fixed and the ratio of S to H is less than or equal to 0.33, the noise of the fan system decreases as the ratio of S to H increases;

[0071] When the thickness of the air box 11 is fixed and the ratio of S to H is greater than 0.33, the noise of the fan system increases as the ratio of S to H increases.

[0072] As Figures 1 - 7 shown, in the prior art, the preferred range of the thickness LD of the air box 11 is 160mm < L < 240mm; the preferred range of the thickness H of the air cabinet 2 is: 90mm < L < 140mm, and the unilateral distance S is the shortest distance between the inner side of the first side plate 111 and the outer side of the air cabinet 2 close to the first side plate 111.

[0073] Generally, a wind wheel 22 is arranged inside the air cabinet 2. The difference between the thickness of the air cabinet 2 and the thickness of the wind wheel 22 is 10mm. Therefore, as the thickness of the air cabinet 2 increases, the thickness of the wind wheel 22 also increases, and the power of the air cabinet 2 also increases. Some users choose a high-power air cabinet 2, but there is a problem of increase. After a large number of tests, it is found that the noise of the fan system has an obvious correlation with the ratio of S to H. Among them, when the ratio of S to H is 0.15 - 0.69, the sound pressure level of the fan system is relatively low, far lower than the sound pressure level of 59 dBA required for the integrated range hood in the national standard.

[0074] In addition, when the ratio of S to H is 0.25 - 0.40, the sound pressure level of the fan system is not higher than 57 dBA, far lower than the requirements in the national standard. Especially when the ratio of S to H is greater than 0.33, the sound pressure level reaches the lowest. Among them, when the ratio of S to H is less than 0.33, the noise of the fan system decreases as the ratio of S to H increases; when the ratio of S to H is greater than 0.33, the noise of the fan system increases as the ratio of S to H increases.

[0075] Table 1 Corresponding table of sound pressure level and ratio of S to H under two different air box thicknesses

[0076]

[0077] From Table 1 and Figure 8It can be seen that the corresponding relationship between the sound pressure level and the ratio of S to H at two kinds of bellows thicknesses. It is not difficult to see that for the noise of the fan system, when the thickness of the bellows 11 is fixed, the sound pressure level first decreases and then increases as the ratio of S to H increases. In addition, when the thickness of the bellows 11 increases, the sound pressure level at the same ratio decreases. This embodiment can provide a good reference for users to select an integrated stove with power and quietness, and can independently select and equip the corresponding air cabinet 2 within a certain range according to needs. At the same time, on the basis of the same price, parameters such as air volume, noise, and air pressure can be selected, enabling the performance of the integrated stove to be differentiated and meeting the diverse needs of users. In particular, it can meet the needs of users for large air volume and high static pressure on the basis of avoiding sound-absorbing cotton.

[0078] The integrated stove in this embodiment includes any one of the above-mentioned fan systems. Since the above-mentioned fan system has the above-mentioned technical effects, the integrated stove with the above-mentioned fan system should also have the same technical effects.

[0079] In the embodiments of the present invention, the term "a plurality of" refers to two or more, unless otherwise clearly defined. Terms such as "installation", "connection", and "fixation" should all be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific situations.

[0080] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as a limitation to the embodiments of the present invention.

[0081] In the description of this specification, the description of terms such as "one embodiment" and "one preferred embodiment" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0082] The above are only the preferred embodiments of the embodiments of the present invention and are not used to limit the embodiments of the present invention. For those skilled in the art, the embodiments of the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the embodiments of the present invention shall be included in the protection scope of the embodiments of the present invention.

Claims

1. An optionally configurable fan system, characterized in that, Comprising: A bellows assembly (1), including a bellows (11); An air cabinet (2), arranged in the middle of the interior of the bellows (11); A connection assembly (3), including a first fixing part (31) and a second fixing part (32) that are detachably connected. Among them, the first fixing part (31) is fixedly connected to the bellows (11), and the second fixing part (32) is fixedly connected to the air cabinet (2); Among them, the first fixing part (31) is provided with a plurality of first fixing part mounting holes, the second fixing part (32) is provided with second fixing part mounting holes, and the second fixing part mounting holes cooperate with different first fixing part mounting holes to realize the installation of the air cabinets (2) of different sizes; The bellows (11) includes a first side plate (111), a second side plate (112), a third side plate (113), and a fourth side plate (114) connected in sequence. The second fixing part (32) includes two air cabinet brackets (321). The first fixing part (31) includes an L-shaped support plate group corresponding to the air cabinet brackets (321), and the air cabinet brackets (321) are detachably connected to the L-shaped support plate group; The air cabinet bracket (321) includes: A U-shaped fixing plate (3211), sleeved on the outer periphery of the air cabinet (2) and fixedly connected to the air cabinet (2); A connecting plate (3212), located above the L-shaped support plate group; Among them, the L-shaped support plate group includes two symmetrically arranged L-shaped support plates (311). The two L-shaped support plates (311) are respectively fixedly connected to the first side plate (111) and the third side plate (113). The horizontal part of the L-shaped support plate (311) is provided with a plurality of first fixing part mounting holes, and both ends of the connecting plate (3212) are provided with second fixing part mounting holes; The connecting plate (3212) close to the side of the air cabinet (2) is fixedly connected to the U-shaped fixing plate (3211), and a reinforcing rib (3213) is arranged between the U-shaped fixing plate (3211) and the connecting plate (3212); The end of the connecting plate (3212) far from the air cabinet (2) is provided with a flanging (3214) to enhance the structural strength of the air cabinet bracket (321); A convex rib (3215) is arranged in the middle of the connecting plate (3212) to enhance the compressive strength of the connecting plate (3212).

2. The optional fan system according to claim 1, characterized in that The bellows (11) includes a smoke inlet. The air cabinet (2) includes an air inlet end and an air outlet end. Among them, the air inlet end communicates with the smoke inlet, and the air outlet end communicates with an air outlet seat (4). The axis of the air outlet section of the air outlet seat (4) is parallel to the horizontal plane to blow out the oil fume horizontally.

3. The optional blower system according to claim 2, wherein An air cabinet flange (21) is arranged at the outlet end of the air cabinet (2). External threads are provided on the outer periphery of the air cabinet flange (21), and threaded holes are provided on the second side plate (112) so that the air cabinet flange (21) is threadedly connected to the second side plate (112).

4. The optional fan system according to claim 1, characterized in that, The thickness of the bellows (11) is L, the thickness of the air cabinet (2) is H, and the unilateral distance between the air cabinet (2) and the bellows (11) is S, where S = (L - H) / 2, and the ratio of S to H is 0.15 to 0.69, so as to reduce the noise of the fan system.

5. The optional fan system according to claim 4, characterized in that The ratio of S to H is 0.25 - 0.

40.

6. The optional fan system according to claim 4, wherein The ratio of S to H is 0.33; When the thickness of the bellows (11) is fixed and the ratio of S to H is less than or equal to 0.33, the noise of the fan system decreases as the ratio of S to H increases; When the thickness of the bellows (11) is fixed and the ratio of S to H is greater than 0.33, the noise of the fan system increases as the ratio of S to H increases.

7. An integrated stove, characterized in that, Comprising: The fan system according to any one of claims 1 - 6.

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