Seat with fan

Abstract

The utility model provides a seat with a fan, which comprises the following components: a seat which comprises a cushion part and a backrest part; the air flow assembly comprises a fan part and a nozzle part, the nozzle part surrounds at least part of the outer contour area of the backrest part, the nozzle part is annular, a three-dimensional air distribution wall is arranged in the middle of the bottom of an annular air channel in the nozzle part, and air generated by the fan part flows to the three-dimensional air distribution wall and then is divided into two sub-air flows to be guided towards the cushion part. The sub-airflow rises along the two sides of the annular air channel and is emitted to the supporting side of the backrest part through an air outlet of the nozzle piece. The seat can be seamlessly combined with various seats, the distance difference between the fan part and the air outlet is compensated while the air flow of the seat is shunted through the three-dimensional air distribution wall body, a streamline air channel is fully attached to the outline of the seat, noise and vibration are reduced, and user experience is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioning equipment field, concretely relates to a seat with fan. BACKGROUND

[0002] In prior art, there is a precedent about the structure design of applying fan function on human body equipment, so that the user can enjoy the wind blown by the fan on the human body equipment when using the human body equipment.

[0003] For example, the utility model discloses a kind of electric fan chairs, including chair foot, backrest, armrest and seat; the edge of armrest and backrest is by hollow tube integral winding, multiple air outlet small holes are made on the pipe wall of hollow tube, pipe type electric fan and power plug are provided under seat, pipe type electric fan and power plug are connected by power cord, pipe type electric fan blows wind in hollow tube body.This chair can realize fan function, but there are the following defects:

[0004] On the one hand, it sets multiple air outlet small holes on the pipe wall to blow wind outward, the blown wind is dispersed, not concentrated, not uniform, and not far, the wind feeling felt by human body is not obvious, and the user experience is poor;On the other hand, it uses ordinary pipe type electric fan to blow wind in hollow tube body, the wind pressure is not enough, in actual use, it is difficult to effectively pump external air flow to each part of the hollow tube body wound integrally, the phenomenon that the part close to pipe type electric fan has larger wind volume, and the part far from pipe type electric fan has smaller wind volume or even no wind volume is prone to occur, so that the blown wind volume is not balanced and the coverage area is small.

[0005] Therefore, the utility model provides a seat with fan. UTILITY MODEL CONTENTS

[0006] In view of the problems in prior art, the utility model aims at providing a seat with fan, which can be seamlessly combined with various seats, and through the three-dimensional air distribution wall, the distance difference between the fan part and the air outlet is compensated when the air flow is distributed, the streamlined air duct is fully matched with the contour of the seat, the noise and vibration are reduced, and the user experience is improved.

[0007] The embodiment of the utility model provides a seat with fan, which comprises:

[0008] A seat, comprising a seat cushion part and a backrest part; and

[0009] An air flow assembly, comprising a fan unit and a nozzle unit, the nozzle unit encircles at least part of the outer contour of the backrest unit, the nozzle unit has an annular shape, a three-dimensional air distribution wall is arranged in the middle of the bottom of the annular air duct of the nozzle unit, the air flow generated by the fan unit is divided into two sub-air flows after the three-dimensional air distribution wall and is guided towards the direction of the seat cushion unit, the sub-air flows respectively rise along the two sides of the annular air duct and are emitted through the air outlets of the nozzle unit towards the support side of the backrest unit.

[0010] Preferably, the fan unit is arranged on the side of the backrest unit away from the seat cushion unit, the fan unit comprises an air inlet, a fan motor for generating air flow and an air outlet, the air outlet is connected to the bottom of the annular air duct, the three-dimensional air distribution wall comprises an air distribution protruding shaft protruding towards the air outlet and air distribution guide side walls extending from the air distribution protruding shaft to both sides.

[0011] Preferably, the air distribution guide side walls guide the sub-air flows to both sides respectively while guiding the sub-air flows towards the direction of the seat cushion unit.

[0012] Preferably, the lower part of the shell of the fan unit is in contact with the lower part of the non-supporting surface of the backrest unit, the lower part of the shell of the fan unit is in contact with the back side of the seat cushion unit, the maximum ground clearance of the fan unit is less than or equal to the maximum ground clearance of the seat cushion unit.

[0013] Preferably, the nozzle unit encircles the outer contour of the backrest unit and is provided with air outlets in sequence along the extension track of the nozzle unit, the internal air duct of the nozzle unit is connected to the air outlet to receive air flow and respectively emits air flow towards the support side of the backrest unit based on the air outlets, the seat cushion unit and the backrest unit jointly define the upper body area of the user in a sitting position, and each air outlet is respectively inclined towards the central position of the upper body area.

[0014] Preferably, the backrest unit comprises an inverted U-shaped support column frame and a tension net frame, the tension net frame is connected to the support side of the inverted U-shaped support column frame, and the surface of the tension net frame is tensioned with a net cloth.

[0015] Preferably, the nozzle unit has a special round rectangular ring shape, the bottom air duct of the special round rectangular ring is attached to the bottom of the non-supporting side of the tension net frame, and the two side air ducts and the upper air duct of the special round rectangular ring respectively encircle the outer contour of the tension net frame by bypassing the non-supporting side.

[0016] Preferably, the support side of the inverted U-shaped support column frame is provided with a plurality of protrusions, the non-support side of the tension net frame is connected to the protrusions, the protrusions, the inverted U-shaped support column frame and the tension net frame jointly form an annular groove with a notch facing away from the center of the backrest part, and the nozzle piece is at least partially arranged in the annular groove, and an air outlet of the nozzle piece is exposed outside the annular groove.

[0017] Preferably, the inner periphery of the nozzle piece is respectively provided with a plurality of connecting lug plates for connecting the outer contour of the backrest part, and the connecting lug plates are respectively connected to the non-support side of the tension net frame.

[0018] Preferably, the seat furniture is one of an office chair, an e-sports chair, an exercise chair, a passenger seat or a driver seat.

[0019] The seat furniture with a fan can be seamlessly combined with various seat furniture, and the distance difference between the fan part and the air outlet is compensated while the air flow is divided by the three-dimensional air distribution wall, a streamlined air duct is arranged to fully fit the contour of the seat furniture, noise and vibration are reduced, and user experience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments with reference to the attached drawings.

[0021] Figure 1 is a perspective view of the seat furniture with a fan of the present application.

[0022] Figure 2 is a schematic view of the support side of the seat furniture with a fan of the present application.

[0023] Figure 3 is a schematic view of the air flow assembly in the seat furniture with a fan of the present application.

[0024] Figure 4 is a sectional view of Figure 3 .

[0025] Figure 5 is a side view of the air flow assembly in the seat furniture with a fan of the present application.

[0026] Figure 6 is a sectional view of Figure 5 .

[0027] Figure 7 is a top view of the air flow assembly in the seat furniture with a fan of the present application.

[0028] Figure 8 is a bottom view of the air flow assembly in the seat furniture with a fan of the present application.

[0029] Reference numerals

[0030] 1 seat cushion

[0031] 2 backrest

[0032] 21 inverted U-shaped support column frame

[0033] 22 net frame

[0034] 23 protrusion

[0035] 3 air flow assembly

[0036] 30 blower portion

[0037] 31 nozzle member

[0038] 32 air outlet

[0039] 33 connecting lug

[0040] 34 screw hole

[0041] 35 air inlet

[0042] 36 blower

[0043] 37 three-dimensional air distribution wall

[0044] 38 air distribution protrusion

[0045] 39 air distribution guide side wall DETAILED DESCRIPTION

[0046] The present application is described below by way of specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the disclosure of the present application. The present application can also be implemented or applied in different specific embodiments, and the details in the present application can be modified or changed according to different viewpoints and application systems without departing from the spirit of the present application. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0047] The embodiments of the present application are described in detail below with reference to the accompanying drawings, so that those skilled in the art can easily implement the present application. The present application can be embodied in various different forms, and is not limited to the embodiments described herein.

[0048] In the present specification, expressions such as "one embodiment", "some embodiments", "exemplary", "specific example", or "some examples", mean that a specific feature, structure, material, or characteristic being referred to is included in at least one embodiment or example of the present application. In addition, the expressions can refer to the possibility that the specific feature, structure, material, or characteristic can be combined with other specific features, structures, materials, or characteristics in any suitable manner. Further, the specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples unless the context clearly dictates otherwise.

[0049] In addition, the terms "first", "second", etc. are used only to distinguish one element from another, and are not intended to imply or suggest relative importance or a number of the technical features indicated. Thus, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the present specification, the meaning of "a plurality of" is two or more, unless specifically limited otherwise.

[0050] In order to clearly explain the present application, devices irrelevant to the explanation are omitted, and the same reference numerals are assigned to the same or similar constituent elements throughout the specification.

[0051] Throughout the specification, when it is said that a device is "connected" to another device, this includes not only the case of "direct connection", but also the case of "indirect connection" in which other elements are interposed therebetween. In addition, when it is said that a device "includes" a certain constituent element, unless specifically stated to the contrary, other constituent elements are not excluded, but it means that other constituent elements can also be included.

[0052] When it is said that a device is "on" another device, it can be directly on the other device, but can also be accompanied by other devices therebetween. When it is said that a device is "directly" on another device, there are no other devices therebetween.

[0053] Although the terms first, second, etc. can be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first interface and a second interface, etc. are described. Also, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises", "comprising", "includes" and / or "including" used herein specify the presence of stated features, steps, operations, elements, components, items, and / or groups but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, items, and / or groups thereof. As used herein, the terms "or" and "and / or" are to be interpreted as inclusive, i.e., as meaning one or any combination of the items listed. Thus, "A, B or C" or "A, B and / or C" means any of the following: A; B; C; A and B; A and C; B and C; A, B and C. Exceptions to this definition apply only when the combination of elements, functions, steps or acts are mutually exclusive, i.e., are inherently mutually exclusive by their nature.

[0054] The professional terms used herein are used only to refer to specific embodiments and are not intended to limit the present application. The singular form used herein, unless the context clearly indicates otherwise, also includes the plural form. The meaning of "comprising" used in the specification is to specify the particular characteristics, regions, integers, steps, operations, elements, and / or components, and not to exclude the presence or addition of other characteristics, regions, integers, steps, operations, elements, and / or components.

[0055] Although not differently defined, the technical and scientific terms used herein include the technical terms and scientific terms used herein, all of which have the same meaning as generally understood by those skilled in the art to which the present application belongs. The terms defined in a commonly used dictionary are additionally interpreted to have a meaning consistent with the content of the related technical literature and the current indication, unless defined, and should not be over-interpreted as ideal or very formal meanings.

[0056] Figure 1 A perspective view of a seat having a fan according to the present application. Figure 2 A schematic view of a support side of a seat having a fan according to the present application. Figure 3 A schematic view of an air flow assembly of a seat having a fan according to the present application. Figure 4 A sectional view of Figure 3 A sectional view of Figure 5 A side view of an air flow assembly of a seat having a fan according to the present application. Figure 6 A sectional view of Figure 5 A sectional view of Figure 7 A top view of an air flow assembly of a seat having a fan according to the present application. Figure 8This is a bottom view of the airflow assembly in the fan-equipped seating according to this utility model. Figures 1 to 8 As shown, the present invention provides a fan-equipped seating unit, comprising: a seating unit and an airflow assembly 3 (for clarity of the structural layout, ...). Figures 1 to 8 (Elastic mesh fabric not shown). The seating includes a seat cushion 1 and a backrest 2. The airflow assembly 3 includes a fan 30 and a nozzle 31. The nozzle 31 surrounds at least a portion of the outer contour area of ​​the backrest 2. The nozzle 31 is annular in shape. A three-dimensional air distribution wall 37 is provided in the middle of the bottom of the annular air passage in the nozzle 31. The airflow generated by the fan 30 is split into two sub-airflows after passing through the three-dimensional air distribution wall 37 and guided towards the seat cushion 1 (see Figure 6, overcoming the distance difference d between the vertical direction of the fan's air outlet and the vertical direction of the main air passage of the nozzle 31). The sub-airflows rise along both sides of the annular air passage and are emitted towards the support side of the backrest 2 through the air outlet 32 ​​of the nozzle 31. In this invention, to reduce noise and improve aesthetics, the fan unit 30 is positioned at the rear of the backrest 2. However, because the nozzle 31 surrounds the outer contour of the backrest 2, there is a distance difference in the front-to-back direction between the air outlet of the fan unit 30 and the main air passage of the nozzle 31. The three-dimensional air distribution wall 37 in this invention differs from the structure of traditional bladeless fans that merely divides the airflow into two streams and guides them left and right. Instead, it divides the airflow into two sub-airflows that enter the left and right air passages of the nozzle 31 obliquely upwards, while simultaneously guiding the sub-airflows towards the seat cushion 1. The combination of the three-dimensional air distribution wall 37 and the lower partial air passage of the nozzle 31 allows the nozzle 31 to fully conform to the contour of the seat, creating a streamlined air passage that reduces noise and vibration and improves the user experience.

[0057] In a preferred embodiment, the fan unit 30 is disposed on the side of the backrest 2 away from the seat cushion 1. The fan unit 30 includes an air inlet 35, a fan motor for generating airflow, and an air outlet. The air outlet is connected to the bottom of the annular air duct. The three-dimensional air distribution wall 37 includes an air distribution protrusion shaft 38 protruding toward the air outlet and air distribution guide sidewalls 39 extending from the air distribution protrusion shaft 38 to both sides, but is not limited thereto.

[0058] In a preferred embodiment, the air distribution guide sidewall 39 guides the sub-airflow to both sides while simultaneously guiding the sub-airflow toward the seat cushion 1 (thereby approaching the local air passage in the nozzle 31 surrounding the outer contour of the backrest 2), but is not limited thereto.

[0059] In a preferred embodiment, the lower part of the outer casing of the fan unit 30 contacts the lower part of the non-supported surface of the backrest 2, and the lower part of the outer casing of the fan unit 30 contacts the rear side of the seat cushion 1. The maximum ground clearance of the fan unit 30 is less than or equal to the maximum ground clearance of the seat cushion 1, but is not limited thereto.

[0060] In a preferred embodiment, the nozzle piece 31 surrounds the outer contour of the backrest part 2 and sequentially provides the air outlets 32 along the extension trajectory of the nozzle piece 31, the internal air duct of the nozzle piece 31 is communicated with the air outlet to receive the air flow, and the air flow is respectively emitted to the support side of the backrest part 2 based on the air outlet 32, the seat cushion part 1 and the backrest part 2 jointly define the upper body area of the user in a sitting state, and each air outlet 32 is respectively inclined to the central position of the upper body area, but not limited thereto.

[0061] In a preferred embodiment, the backrest part 2 includes a reverse U-shaped support column frame 21 and a tension net frame 22, the tension net frame 22 is connected to the support side of the reverse U-shaped support column frame, and the surface of the tension net frame 22 is tensioned with a elastic net cloth, but not limited thereto.

[0062] In a preferred embodiment, the nozzle piece 31 is a special-shaped round rectangular ring, the bottom air duct of the special-shaped round rectangular ring is attached to the bottom of the non-supporting side of the tension net frame 22, and the two side air ducts and the upper air duct of the special-shaped round rectangular ring respectively surround the outer contour of the tension net frame 22 by bypassing the non-supporting side, but not limited thereto.

[0063] In a preferred embodiment, the support side of the reverse U-shaped support column frame 21 is provided with a plurality of protruding parts 23, the non-supporting side of the tension net frame 22 is connected to the protruding parts 23, and the protruding parts 23, the reverse U-shaped support column frame 21 and the tension net frame 22 jointly form a ring-shaped groove with the notch facing away from the center of the backrest part 2, the nozzle piece 31 is at least partially arranged in the ring-shaped groove, and the air outlet 32 of the nozzle piece 31 is exposed outside the ring-shaped groove, but not limited thereto.

[0064] In a preferred embodiment, the inner periphery of the nozzle piece 31 is respectively provided with a plurality of connecting lug plates 33 for connecting the outer contour of the backrest part 2, and the connecting lug plates 33 are respectively connected to the non-supporting side of the tension net frame 22, but not limited thereto.

[0065] In a preferred embodiment, the seat is one of an office chair, an e-sports chair, a fitness chair, a passenger seat or a driver seat, but not limited thereto.

[0066] The specific implementation manner of the utility model is as follows:

[0067] Reference Figures 1 to 8As shown, the chair with a fan in the utility model is an office chair, comprising: a chair and an air flow assembly 3. Among them, the chair comprises a cushion part 1 and a backrest part 2. The air flow assembly 3 comprises a fan part 30 and a nozzle piece 31, the nozzle piece 31 surrounds at least part of the outer contour area of the backrest part 2, the outer shape of the nozzle piece 31 is annular, the middle of the annular air channel bottom in the nozzle piece 31 is provided with a three-dimensional air distribution wall body 37, the air flow generated by the fan part 30 is divided into two sub-air flows after the three-dimensional air distribution wall body 37 and is guided to the direction of the cushion part 1 (overcoming the distance difference between the air outlet of the fan and the main air channel of the nozzle piece 31), the sub-air flows respectively rise along the two sides of the annular air channel, and the air flow is emitted to the support side of the backrest part 2 along the air outlet 32 of the nozzle piece 31. The fan part 30 is arranged on the side of the backrest part 2 away from the cushion part 1, the fan part 30 comprises an air inlet 35, a fan motor for generating air flow and an air outlet, the air outlet is communicated with the bottom of the annular air channel, the three-dimensional air distribution wall body 37 comprises an air distribution protruding shaft 38 protruding towards the air outlet and an air distribution guide side wall 39 extending to both sides from the air distribution protruding shaft 38. The air distribution guide side wall 39 guides the sub-air flow to both sides respectively in the process, and simultaneously guides the sub-air flow to the direction of the cushion part 1. The lower part of the shell of the fan part 30 is in surface contact with the lower part of the non-supporting surface of the backrest part 2, the lower part of the shell of the fan part 30 is in surface contact with the back side of the cushion part 1, and the maximum ground clearance of the fan part 30 is less than or equal to the maximum ground clearance of the cushion part 1. The nozzle piece 31 surrounds the outer contour of the backrest part 2 and is sequentially provided with air outlets 32 along the extension track of the nozzle piece 31, the internal air channel of the nozzle piece 31 is communicated with the air outlet to receive the air flow, and the air flow is respectively emitted to the support side of the backrest part 2 based on the air outlet 32, the cushion part 1 and the backrest part 2 jointly define the upper body area of the user in a sitting position, and each air outlet 32 is respectively inclined to the central position of the upper body area. The backrest part 2 comprises an inverted U-shaped support column frame 21 and a tension net frame 22, the tension net frame 22 is connected to the support side of the inverted U-shaped support column frame, and the surface of the tension net frame 22 is tensioned with a elastic net cloth. The outer shape of the nozzle piece 31 is a special round rectangular ring, the bottom air channel of the special round rectangular ring is attached to the bottom of the non-supporting side of the tension net frame 22, and the two side air channels and the upper air channel of the special round rectangular ring bypass the non-supporting side and surround the outer contour of the tension net frame 22 respectively. The support side of the inverted U-shaped support column frame 21 is provided with a plurality of protruding parts 23, the non-supporting side of the tension net frame 22 is connected to the protruding parts 23, the protruding parts 23, the inverted U-shaped support column frame 21 and the tension net frame 22 jointly form an annular groove with a notch away from the center of the backrest part 2, the nozzle piece 31 is at least partially arranged in the annular groove, and the air outlet 32 of the nozzle piece 31 is exposed outside the annular groove. The inner periphery of the nozzle piece 31 is respectively provided with a plurality of connecting lug plates 33 for connecting the outer contour of the backrest part 2, and the connecting lug plates 33 are respectively connected to the non-supporting side of the tension net frame 22.

[0068] Compared with the prior art, the utility model discloses a kind of traditional office and fan function piece organic combination scheme, and the technical difficulties that it faces mainly include: how to hide as far as possible without affecting the appearance of seat;How to provide air passage based on the irregular profile of chair back, and solve noise, vibration and other technical problems;There is how to weaken the influence of relatively large fan department to seat appearance and gravity center etc.And the utility model is based on backrest by fan department behind and under, and fan department 30 will possibly be attached with backrest part 2, cushion part 1, and the vibration generated when high-speed air flow moves in air passage is greatly reduced, and the structure design of using the area of backrest edge to accommodate nozzle piece 31 etc., fully overcome the above technical problems, provide the structure scheme that user experience is more superior that office chair and fan are combined.

[0069] In conclusion, a kind of seat with fan of the utility model, can be seamlessly combined with various seats, and the distance difference between fan department and air outlet is compensated while air flow is shunted in three-dimensional air distribution wall, and the profile of seat is fully attached to set streamline air passage, reduce noise and vibration, improve user experience.

[0070] The above content is further detailed description of the utility model in combination with specific preferred embodiments, and cannot be determined that the specific implementation of the utility model is limited to these descriptions.For ordinary skilled person in the art to which the utility model belongs, on the premise of not departing from the concept of the utility model, can also make a number of simple deductions or substitutions, all should be regarded as belonging to the protection scope of the utility model.

Claims

1. A seat with a fan, characterized in that, include: A seat, comprising a seat cushion (1) and a backrest (2); as well as An airflow assembly (3) includes a fan (30) and a nozzle (31). The nozzle (31) surrounds at least a portion of the outer contour area of ​​the backrest (2). The nozzle (31) is annular in shape. A three-dimensional air-dividing wall (37) is provided in the middle of the bottom of the annular air passage in the nozzle (31). The airflow generated by the fan (30) is divided into two sub-airflows after passing through the three-dimensional air-dividing wall (37) and guided toward the seat cushion (1). The sub-airflows rise along both sides of the annular air passage and are emitted toward the support side of the backrest (2) through the air outlet (32) of the nozzle (31).

2. The seating with a fan as described in claim 1, characterized in that, The fan unit (30) is located on the side of the backrest (2) away from the seat cushion (1). The fan unit (30) includes an air inlet (35), a fan motor for generating airflow, and an air outlet. The air outlet is connected to the bottom of the annular air passage. The three-dimensional air distribution wall (37) includes an air distribution protrusion shaft (38) protruding toward the air outlet and air distribution guide sidewalls (39) extending from the air distribution protrusion shaft (38) to both sides.

3. The seating with a fan as described in claim 2, characterized in that, The air distribution guide sidewall (39) guides the sub-airflow to both sides and simultaneously guides the sub-airflow toward the seat cushion (1).

4. The seating with a fan as described in claim 2, characterized in that, The lower part of the outer shell of the fan unit (30) contacts the lower part of the non-support surface of the backrest (2), the lower part of the outer shell of the fan unit (30) contacts the rear side of the seat cushion (1), and the maximum ground clearance of the fan unit (30) is less than or equal to the maximum ground clearance of the seat cushion (1).

5. The seating with a fan as described in claim 4, characterized in that, The nozzle (31) surrounds the outer contour of the backrest (2) and air outlets (32) are arranged sequentially along the extension trajectory of the nozzle (31). The internal air passage of the nozzle (31) is connected to the air outlet to receive air flow, and each air outlet (32) emits air flow to the support side of the backrest (2). The seat cushion (1) and the backrest (2) together define the upper body area of ​​the user in a sitting posture. Each air outlet (32) is inclined to the center of the upper body area.

6. The seating with a fan as described in claim 1, characterized in that, The backrest (2) includes an inverted U-shaped support column frame (21) and a tension mesh frame (22). The tension mesh frame (22) is connected to the support side of the inverted U-shaped support column frame, and the surface of the tension mesh frame (22) is tensioned with elastic mesh fabric.

7. The seating with a fan as described in claim 6, characterized in that, The nozzle component (31) is an irregularly shaped rounded rectangular ring. The bottom air passage of the irregularly shaped rounded rectangular ring fits the bottom of the non-support side of the tension frame (22). The air passages on both sides and the upper air passage of the irregularly shaped rounded rectangular ring bypass the non-support side and respectively surround the outer contour of the tension frame (22).

8. The seating with a fan as described in claim 6 or 7, characterized in that, The supporting side of the inverted U-shaped support column frame (21) is provided with several protrusions (23). The non-supporting side of the tension net frame (22) is connected to the protrusions (23). The protrusions (23), the inverted U-shaped support column frame (21), and the tension net frame (22) together form an annular groove with the opening facing away from the center of the backrest (2). The nozzle component (31) is at least partially disposed in the annular groove, and the air outlet (32) of the nozzle component (31) is exposed outside the annular groove.

9. The seating with a fan as described in claim 6, characterized in that, The nozzle component (31) has several connecting ear plates (33) on its inner periphery for connecting the outer contour of the backrest (2), and the connecting ear plates (33) are respectively connected to the non-support side of the tension frame (22).

10. The seating with a fan as described in claim 1, characterized in that, The seating is one of the following: office chair, gaming chair, fitness chair, passenger seat, or driver's seat.

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