Breathing fan

Abstract

The utility model belongs to the technical field of seat ventilation, specifically relates to a breathing fan. The breathing fan, include: fan subassembly, its top surface is opened the air inlet, and the side wall is opened the air outlet, fan subassembly sets up on the lower casing, just the air outlet with the air outlet passage on the lower casing intercommunication, upper casing, it covers sets up on the lower casing to form the fan casing, just and the air outlet passage abuts, with the air inlet forms the gap, to in the air outlet passage with the lower casing and surrounds the air inlet passage, the fan casing one side towards the air outlet passage with the air inlet passage is opened the first air exchange mouth, is equipped with the air duct switching subassembly at first air exchange mouth, drive subassembly. The breathing fan can set up the air duct switching assembly and drive assembly in the fan casing when, just through the drive assembly drive air duct switching assembly in the first air exchange mouth rotates the mode of first air exchange mouth air intake or air blowing.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of seat ventilation, specifically relates to a breathing fan. BACKGROUND

[0002] Promote the air flow between the human body and the seat surface can improve the comfort of riding, this is the seat ventilation technology. At present, the seat ventilation system on the market is caused by the fan the flow of air between the human body and the seat surface, the form is blowing to the seat surface or sucking the air from the seat surface.

[0003] The current seat ventilation system often adopts single fan design, therefore in order to realize blowing and sucking, the air duct needs to be regulated, and the seat and vehicle in the publication (announcement) No. CN215474642U disclose four channels around the fan, the switching of blowing and sucking is realized by the opening and closing of the blades arranged in each channel, and the air duct regulating structure makes the driving part of each blade only be arranged outside the shell, resulting in low space utilization of the shell. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a breathing fan to solve the technical problem that the air duct regulating structure of the existing ventilation device makes the driving part of each blade only be arranged outside the shell.

[0005] In order to solve the above technical problem, the utility model provides a breathing fan, which comprises: a fan assembly, which is provided with an air inlet on the top surface and an air outlet on the side wall; the fan assembly is arranged on a lower shell, and the air outlet is communicated with an air outlet channel on the lower shell; an upper shell is arranged on the lower shell to form a fan shell, and abuts against the air outlet channel and forms a gap with the air inlet to form an air inlet channel with the lower shell beside the air outlet channel; one side of the fan shell facing the air outlet channel and the air inlet channel is provided with a first air exchange opening, and the first air exchange opening is provided with an air duct switching assembly; a driving assembly is arranged in the air inlet channel and is suitable for driving the air duct switching assembly to rotate in the first air exchange opening, and the fan shell is provided with a second air exchange opening on any side in the rotation axis direction of the air duct switching assembly, so that when the first air exchange opening is communicated with the air inlet channel, the second air exchange opening is communicated with the air outlet channel and the second air exchange opening is separated from the first air exchange opening, or when the second air exchange opening is communicated with the air inlet channel, the first air exchange opening is communicated with the air outlet channel and the first air exchange opening is separated from the air inlet channel.

[0006] Further, the air duct switching assembly comprises a rotating disc which is rotatably arranged at the first air exchange opening and is in transmission connection with the driving assembly; the rotating disc is in abutment with the inner wall of the fan shell on the side of the second air exchange opening, and the rotating disc is provided with an air exchange hole; two baffle plates which are in abutment with the inner wall on the opposite side are connected at the center of the rotating disc and respectively extend from the center to the edge of the rotating disc, so that the air exchange hole is located between the two baffle plates.

[0007] Further, when the baffle plate close to the air inlet channel is in abutment with the side close to the air inlet channel of the channel opening of the air outlet channel, the other baffle plate is in abutment with the inner wall of the side wall of the fan shell at the first air exchange opening, so that the first air exchange opening is in communication with the air inlet channel, the second air exchange opening is in communication with the air outlet channel through the air exchange hole, and the second air exchange opening is isolated from the first air exchange opening.

[0008] Further, when the baffle plate close to the air inlet channel is in abutment with the inner wall of the side wall of the fan shell at the first air exchange opening, the other baffle plate is in abutment with the side close to the air inlet channel of the channel opening of the air outlet channel, so that when the second air exchange opening is in communication with the air inlet channel through the air exchange hole, the first air exchange opening is in communication with the air outlet channel and is isolated from the air inlet channel.

[0009] Further, the rotating disc is rotatably arranged at the first air exchange opening through a central column; the two baffle plates are connected with the column, and the included angle between the two baffle plates is a right angle; and the air exchange hole is a sector.

[0010] Further, the side surface of the rotating disc is a toothed edge; and the driving assembly comprises a driving motor which is arranged in the air inlet channel and is in transmission connection with the rotating disc through an adjusting gear.

[0011] Further, the two baffle plates are connected at the ends away from the air exchange hole to form a connecting part, and the surface of the connecting part facing the air exchange hole is an arc surface.

[0012] Further, the fan assembly comprises a fan assembly which is arranged in a volute, and the inner wall of the volute is provided with the air outlet, and the top surface of the volute is provided with the air inlet.

[0013] The utility model discloses a beneficial effect is, the utility model aims at solving the technical problem that the air duct control structure of existing ventilation device makes the drive piece of each blade can only be set outside the casing, and the breathing fan passes through setting the air inlet, the air outlet on the fan subassembly, sets up the air outlet channel on the lower casing, and when the upper casing cover is set on the lower casing, the air inlet channel is surrounded in the air outlet channel, and the first air exchange opening and the second air exchange opening are set on the fan casing that the lower casing and the upper casing constitute, can when the air duct switching assembly and the drive assembly are all set in the fan casing, the first air exchange opening is communicated with the air inlet channel, the second air exchange opening is communicated with the air outlet channel and the second air exchange opening is cut off with the first air exchange opening, or the second air exchange opening is communicated with the air inlet channel, the first air exchange opening is communicated with the air outlet channel and the first air exchange opening is cut off with the air inlet channel, realize the switching of two air ducts, and according to the fan subassembly working state, inhale the air from the first air exchange opening and discharge from the second air exchange opening, or inhale the air from the second air exchange opening and blow from the first air exchange opening, make the first air exchange opening inhale the wind or blow the wind. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in prior art, the following will briefly introduce the drawing needed to be used in the specific embodiment or prior description, and obviously, the drawing in the following description is some embodiment of the utility model, and for ordinary skilled person in the art, other drawings can also be obtained according to these drawings without paying creative labor.

[0015] Figure 1 It is the explosion map of the breathing fan of the utility model;

[0016] Figure 2 It is the sectional view of the breathing fan of the utility model;

[0017] Figure 3 It is the structure schematic diagram of the breathing fan of the utility model Figure 1 ;

[0018] Figure 4 It is the structure schematic diagram of the breathing fan of the utility model Figure 2 ;

[0019] Figure 5 It is the structure schematic diagram of the breathing fan of the utility model Figure 3 ;

[0020] In the drawing:

[0021] Fan assembly 100, air inlet 110, air outlet 120, fan assembly 130, volute 140, fan housing 200, lower housing 210, upper housing 220, air outlet channel 310, air inlet channel 320, first air exchange port 330, second air exchange port 340, air duct switching assembly 400, turntable 410, air exchange vent 411, partition 420, column 430, connecting part 440, drive assembly 500, drive motor 510, adjusting gear 520. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments implemented by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Example

[0024] like Figure 1 As shown, this utility model provides a breathing fan, including: a fan assembly 100, with an air inlet 110 on its top surface and an air outlet 120 on its side wall; the fan assembly 100 is disposed on a lower housing 210, and the air outlet 120 is connected to an air outlet channel 310 on the lower housing 210; an upper housing 220, combined with... Figure 2 It is mounted on the lower housing 210 to form a fan housing 200, and abuts against the air outlet 310, forming a gap with the air inlet 110, and is combined. Figure 3 To form an air inlet channel 320 next to the air outlet channel 310 and the lower housing 210; combined with Figure 3 and Figure 2 The fan housing 200 has a first air exchange port 330 on the side facing the air outlet channel 310 and the air inlet channel 320, combined with... Figure 1 A duct switching component 400 is provided at the first air exchange port 330; a drive component 500 is disposed in the air inlet channel 320 and is adapted to drive the duct switching component 400 to rotate in the first air exchange port 330. A second air exchange port 340 is opened on any side of the fan housing 200 in the direction of the rotation axis of the duct switching component 400, so that when the first air exchange port 330 is connected to the air inlet channel 320, the second air exchange port 340 is connected to the air outlet channel 310 and the second air exchange port 340 is isolated from the first air exchange port 330; or when the second air exchange port 340 is connected to the air inlet channel 320, the first air exchange port 330 is connected to the air outlet channel 310 and the first air exchange port 330 is isolated from the air inlet channel 320.

[0025] The present respiratory fan can switch the two air passages by driving the air passage switching assembly 400 to rotate in the first air switching opening 330 by the driving assembly 500 when the air passage switching assembly 400 and the driving assembly 500 are both arranged in the fan housing 200, so that the first air switching opening 330 is communicated with the air inlet passage 320, the second air switching opening 340 is communicated with the air outlet passage 310 and the second air switching opening 340 is blocked from the first air switching opening 330, or the second air switching opening 340 is communicated with the air inlet passage 320, the first air switching opening 330 is communicated with the air outlet passage 310 and the first air switching opening 330 is blocked from the air inlet passage 320, so as to switch the two air passages, and according to the working state of the fan assembly 100, air is sucked from the first air switching opening 330 and discharged from the second air switching opening 340, or air is sucked from the second air switching opening 340 and blown from the first air switching opening 330, so as to suck air or blow air from the first air switching opening 330.

[0026] In the present embodiment, the second air switching opening 340 is arranged on the upper housing 220. In addition, the second air switching opening 340 can also be arranged on the lower housing 210.

[0027] As shown in Figure 1 , the air passage switching assembly 400 can include a rotating disc 410 rotatably arranged at the first air switching opening 330 and drivingly connected with the driving assembly 500. The rotating disc 410 abuts against the inner wall of the fan housing 200 on the side of the second air switching opening 340. In the present embodiment, the rotating disc 410 abuts against the inner wall of the upper housing 220, and the rotating disc 410 is provided with an air switching through hole 411. Two partition plates 420 abutting against the inner wall on the opposite side are connected at the center of the rotating disc 410. In the present embodiment, the two partition plates 420 abut against the inner wall of the lower housing 210 and respectively extend from the center to the edge of the rotating disc 410, so that the air switching through hole 411 is located between the two partition plates 420.

[0028] Referring to Figure 4 , the left partition plate 420 of the two partition plates 420 is close to the air inlet passage 320. Referring to Figure 2 , the passage opening of the air outlet passage 310 is rectangular, and one side is close to the air inlet passage 320. In the present embodiment, in combination with Figure 4 and Figure 5, two partitions 420 need to meet when extending from the center of the rotating disc 410 to the edge, when one of the partitions 420 close to the air inlet channel 320 abuts against the side wall inner surface of the fan housing 200 at the first air exchange opening 330, the other partition 420 abuts against the channel opening of the air outlet channel 310 close to the air inlet channel 320, as shown in Figure 3 , the first air exchange opening 330 is communicated with the air inlet channel 320, as shown in Figure 4 , the second air exchange opening 340 is communicated with the air outlet channel 310 through the air exchange hole 411, as shown in Figure 5 , and the second air exchange opening 340 is blocked from the first air exchange opening 330. At this time, referring to Figure 4 , when the fan assembly 100 rotates clockwise, as shown in Figure 3 , air can be sucked through the left part of the first air exchange opening 330 which is not blocked, after the air current enters the left part of the first air exchange opening 330, it goes to the air inlet channel 320, as shown in Figure 4 , then to the air inlet 110, is sucked into the fan assembly 100, and then is discharged from the air outlet 120, goes to the air outlet channel 310, is discharged from the right part of the first air exchange opening 330 through the air exchange hole 411, and the air is sucked through the first air exchange opening 330.

[0029] When it is needed to blow air through the first air exchange opening 330, still referring to Figure 4 , the driving assembly 500 drives the rotating disc 410 to rotate counterclockwise, the air exchange hole 411 and the two partitions 420 also move synchronously, until one of the partitions 420 close to the air inlet channel 320 abuts against the side wall inner surface of the fan housing 200 at the first air exchange opening 330, the other partition 420 abuts against the channel opening of the air outlet channel 310 close to the air inlet channel 320, so that the second air exchange opening 340 is communicated with the air inlet channel 320 through the turned air exchange hole 411, the first air exchange opening 330 is communicated with the air outlet channel 310 and the first air exchange opening 330 is blocked from the air inlet channel 320. At this time, when the fan assembly 100 rotates clockwise, air can be sucked through the left part of the second air exchange opening 340, after the air current enters the left part of the second air exchange opening 340, it goes to the air inlet channel 320, then to the air inlet 110, is sucked into the fan assembly 100, and then is discharged from the air outlet 120, goes to the air outlet channel 310, and is discharged from the right part of the first air exchange opening 330, and the air is blown through the first air exchange opening 330.

[0030] In order to make the two partitions 420 meet the above requirements, in the embodiment, the rotating disc 410 is arranged at the first air exchange opening 330 through a central column 430; the two partitions 420 are connected with the column 430, and the included angle of the two partitions 420 is a right angle; and the air exchange hole 411 is a sector.

[0031] In the embodiment, asFigure 1 As shown in the drawings, the side of the rotating disc 410 is toothed; the driving assembly 500 can include a driving motor 510, which is arranged in the air inlet channel 320 and is in transmission connection with the rotating disc 410 through an adjusting gear 520.

[0032] In the embodiment, two of the baffles 420 are connected at the end away from the air exchange hole 411 to form a connecting part 440, and the side of the connecting part 440 facing the air exchange hole 411 is arc-shaped, which plays a guiding role on the airflow.

[0033] In the embodiment, as shown in the drawings, Figure 1 As shown in the drawings, the fan assembly 100 can include a fan assembly 130 arranged in a volute 140, and the inner wall of the volute 140 is provided with the air outlet 120, and the top surface of the volute 140 is provided with the air inlet 110.

[0034] In summary, the present breathing fan can switch the two air ducts by arranging the air inlet 110 and the air outlet 120 on the fan assembly 100, arranging the air outlet channel 310 on the lower shell 210, surrounding the air inlet channel 320 when the upper shell 220 is arranged on the lower shell 210, and arranging the first air exchange hole 330 and the second air exchange hole 340 on the fan shell 200 composed of the lower shell 210 and the upper shell 220, and arranging the air duct switching assembly 400 and the driving assembly 500 in the fan shell 200, so that the driving assembly 500 drives the air duct switching assembly 400 to rotate in the first air exchange hole 330, so that the first air exchange hole 330 is in communication with the air inlet channel 320, the second air exchange hole 340 is in communication with the air outlet channel 310, and the second air exchange hole 340 is blocked from the first air exchange hole 330, or the second air exchange hole 340 is in communication with the air inlet channel 320, the first air exchange hole 330 is in communication with the air outlet channel 310, and the first air exchange hole 330 is blocked from the air inlet channel 320, so as to switch the two air ducts, and according to the working state of the fan assembly 100, air is sucked from the first air exchange hole 330 and discharged from the second air exchange hole 340, or air is sucked from the second air exchange hole 340 and blown out from the first air exchange hole 330, so as to realize the air suction or blowing of the first air exchange hole 330.

[0035] In the embodiments provided in the present application, it should be understood that the disclosed system and device can be implemented in other manners. The above-described embodiments are only illustrative. For example, the division of the mechanisms is only a logical function division, and there can be another division manner in actual implementation. For example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed.

[0036] In the description of the utility model, it is necessary to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0037] Based on the above ideal embodiments of the utility model, through the above description, related technical personnel can make various changes and modifications without deviating from the technical idea of the utility model. The technical scope of the utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A breathing fan, characterized by, The utility model relates to a breathing fan, including: Fan assembly (100) top surface is opened into the air inlet (110), and the side wall is opened into the air outlet (120); The fan assembly (100) is arranged on the lower shell (210), and the air outlet (120) is communicated with the air outlet channel (310) on the lower shell (210); The upper shell (220) is covered on the lower shell (210) to form the fan shell (200), and is abutted with the air outlet channel (310), and forms the gap with the air inlet (110), to enclose the air inlet channel (320) with the lower shell (210) on the air outlet channel (310) side; The fan shell (200) is opened with the first air exchange opening (330) to the side of the air outlet channel (310) and the air inlet channel (320), and the air duct switching assembly (400) is arranged at the first air exchange opening (330); The driving assembly (500) is arranged in the air inlet channel (320), is suitable for driving the air duct switching assembly (400) rotates in the first air exchange opening (330), and the fan shell (200) is opened with the second air exchange opening (340) on any side of the rotation axis direction of the air duct switching assembly (330), so that when the first air exchange opening (330) is communicated with the air inlet channel (320), the second air exchange opening (340) is communicated with the air outlet channel (310) and the second air exchange opening (340) is cut off with the first air exchange opening (330), or when the second air exchange opening (340) is communicated with the air inlet channel (320), the first air exchange opening (330) is communicated with the air outlet channel (310) and the first air exchange opening (330) is cut off with the air inlet channel (320).

2. The breathing fan according to claim 1, wherein The air duct switching assembly (400) comprises: Rotating disc (410) is rotatably arranged at the first air exchange opening (330), and is drivingly connected with the driving assembly (500); The rotating disc (410) is abutted with the inner wall of the fan shell (200) on the side of the second air exchange opening (340), the rotating disc (410) is opened with the air exchange through hole (411), and the two baffle plates (420) are connected at the center of the rotating disc (410) and respectively extended from the center to the edge of the rotating disc (410), so that the air exchange through hole (411) is located between the two baffle plates (420).

3. The breathing fan according to claim 2, wherein When one baffle plate (420) is abutted with the side of the channel mouth of the air outlet channel (310) close to the air inlet channel (320), the other baffle plate (420) is abutted with the inner wall of the fan shell (200) on the side of the first air exchange opening (330), so that the first air exchange opening (330) is communicated with the air inlet channel (320), the second air exchange opening (340) is communicated with the air outlet channel (310) through the air exchange through hole (411) and the second air exchange opening (340) is cut off with the first air exchange opening (330).

4. The breathing fan according to claim 3, wherein One of the baffles (420) abuts against the inner surface of the sidewall of the fan housing (200) at the first air exchange opening (330) when the fan housing (200) is close to the air inlet channel (320), and the other baffle (420) abuts against one side of the air outlet channel (310) close to the air inlet channel (320), so that the second air exchange opening (340) is communicated with the air inlet channel (320) through the air exchange hole (411), the first air exchange opening (330) is communicated with the air outlet channel (310), and the first air exchange opening (330) is blocked from the air inlet channel (320).

5. The breathing fan according to claim 4, wherein, the rotating disc (410) is rotatably arranged at the first air exchange opening (330) through a central stand (430); the two baffles (420) are connected to the stand (430) and the included angle between the two baffles (420) is a right angle; the air exchange hole (411) is a sector.

6. The breathing fan according to claim 4, wherein, the side surface of the rotating disc (410) is a toothed edge; the driving assembly (500) comprises: a driving motor (510) arranged in the air inlet channel (320) and drivingly connected to the rotating disc (410) through an adjusting gear (520).

7. The breathing fan according to claim 4, wherein, the two baffles (420) are connected at the ends away from the air exchange hole (411) to form a connecting portion (440), and the surface of the connecting portion (440) facing the air exchange hole (411) is a curved surface.

8. The breathing fan according to claim 1, wherein, the fan assembly (100) comprises: a fan assembly (130) arranged in a volute (140), and the air outlet (120) is formed on the inner wall of the volute (140), and the air inlet (110) is formed on the top surface of the volute (140).

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