CN215336862U

CN215336862U - Fresh air device and air conditioner

Info

Publication number: CN215336862U
Application number: CN202121542765.XU
Authority: CN
Inventors: 单联瑜
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2021-07-07
Filing date: 2021-07-07
Publication date: 2021-12-28
Anticipated expiration: 2031-07-07

Abstract

The application relates to a fresh air device and an air conditioner. The fresh air device comprises a fan and a fan shell, the fan is arranged in the fan shell, the fan shell is provided with a fan air inlet and an air outlet, the fan is provided with an air inlet end, the air inlet end corresponds to the fan air inlet, one side, close to the air outlet, of the fan air inlet is provided with a backflow barrier plate, and the backflow barrier plate is used for blocking airflow flowing from the air outlet to the outer side of the fan air inlet. Among the above-mentioned new trend device, be close to through at the fan air intake one side of air outlet is provided with backward flow barrier plate, with right certainly the air outlet to the air current that the fan air intake outside flows blocks, reduces the air current among the new trend device and flows backward to the fan air intake outside from the air outlet to be favorable to reducing the noise of new trend device, improve the intake of new trend device, improve new trend air inlet effect.

Description

Fresh air device and air conditioner

Technical Field

The application relates to the technical field of air conditioners, in particular to a fresh air device and an air conditioner.

Background

In order to improve the indoor air quality, the air conditioner introduces outdoor air into a room through a fresh air device. The fresh air quantity of the fresh air device, the noise quality and other factors determine the fresh air function effect. With the continuous development of air conditioning technology, people have higher and higher requirements on the fresh air function of the fresh air device.

SUMMERY OF THE UTILITY MODEL

The application provides a new trend device and air conditioner is favorable to improving new trend intake and noise reduction.

According to the first aspect of this application embodiment, a new trend device is provided, it includes fan and fan casing, the fan is located in the fan casing, the fan casing is equipped with fan air intake air outlet, the fan has the air inlet end, the air inlet end with the fan air intake corresponds the setting, the fan air intake is close to one side of air outlet is provided with backward flow barrier plate, backward flow barrier plate is used for right certainly the air outlet to the air current that the fan air intake outside flows blocks.

In some embodiments, the fan housing includes a first housing and a second housing that are opposite to each other, the first housing and the second housing together form a fan accommodating cavity, the fan is disposed in the fan accommodating cavity, and the fan inlet is located on the first housing.

In some embodiments, the backflow barrier plate is disposed on the first housing.

In some embodiments, the backflow barrier plate is integrally provided with the first housing.

In some embodiments, the fan inlet is circular.

In some embodiments, the diameter of the fan air inlet is a, the diameter of the fan is D, and the following condition is satisfied between the diameter a of the fan air inlet and the diameter D of the fan: a is more than or equal to 0.7D and less than or equal to 0.9D.

In some embodiments, the diameter of the fan air inlet is a, one side of the backflow barrier plate close to the center of the fan air inlet is provided with a first side edge, the first side edge is a straight edge, and the length b of the first side edge and the diameter a of the fan air inlet satisfy the following condition: b is more than or equal to 0.4a and less than or equal to a.

In some embodiments, one side of the backflow barrier plate close to the center of the fan air inlet is provided with a second side edge connected with the first side edge, the second side edge is a straight edge, and an included angle α formed between the first side edge and the second side edge satisfies the following condition: alpha is more than or equal to 90 degrees and less than or equal to 180 degrees; and/or the presence of a gas in the gas,

the distance L between the first side edge and the center of the fan air inlet and the diameter a of the fan air inlet meet the following conditions: l is more than or equal to 0.1a and less than or equal to 0.5 a.

In some embodiments, an air inlet housing is arranged on one side of the fan housing close to the fan inlet, the air inlet housing and the fan housing together form an air inlet cavity, and the fan inlet serves as an outlet of the air inlet cavity.

In some embodiments, the air inlet housing is provided with an air inlet cavity inlet, a filter screen is arranged in the air inlet cavity, and the fan air inlet and the air inlet cavity inlet are located on two opposite sides of the filter screen.

According to a second aspect of the embodiments of the present application, there is provided an air conditioner including the fresh air device as described above.

According to the above embodiment, this application new trend device and air conditioner, be close to through at the fan air intake one side of air outlet is provided with backward flow barrier plate, with right certainly the air outlet to the air current that the fan air intake outside flows blocks, reduces the air current among the new trend device and flows back to the fan air intake outside from the air outlet to be favorable to reducing the noise of new trend device and the air conditioner that has this new trend device, improve the fresh air device and have the intake of the air conditioner of this new trend device, improve new trend air inlet effect, improve user experience.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or related technologies of the present application, the drawings needed to be used in the description of the embodiments or related technologies are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a perspective block diagram of a fresh air device according to an exemplary embodiment of the present disclosure;

FIG. 2 is an exploded perspective view of the fresh air device of FIG. 1;

FIG. 3 is a schematic view of a portion of the fresh air device shown in FIG. 1;

fig. 4 is a schematic view of a blower intake shown in accordance with an exemplary embodiment of the present disclosure.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of the terms "a" or "an" and the like in the description and in the claims of this application do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "plurality" includes two, and is equivalent to at least two. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

The application provides a new trend device. This new trend device is applicable to new trend air conditioner product to as the new trend structure of new trend air conditioner product, also be applicable to other equipment that have the fresh air function of trading certainly.

The backplate structure will be described in detail with reference to the accompanying drawings.

Fig. 1 is a perspective view of a fresh air device 100 according to an exemplary embodiment of the present disclosure.

Referring to fig. 1, and as necessary with reference to fig. 2 to 4, the fresh air device 100 includes a fan 15 and a fan housing, the fan 15 is disposed in the fan housing, the fan housing is provided with a fan inlet and an air outlet 102, the fan 15 has an air inlet end 151 and an air outlet end 152, and the air inlet end 151 is disposed corresponding to the fan inlet. A backflow blocking plate 1204 is arranged on one side of the fan air inlet close to the air outlet 102, and the backflow blocking plate 1204 is used for blocking air flow flowing from the air outlet 102 to the outer side of the fan air inlet.

The outer side of the fan inlet is understood to be the side of the fan inlet remote from the fan 15.

The fan is an axial flow fan, the air outlet end 152 of the axial flow fan is located on the periphery of the fan 15, and the air outlet end 152 is distributed with a plurality of fan air outlets.

Above-mentioned new trend device is provided with backward flow barrier plate 1204 through the one side that is close to air outlet 102 at the fan air intake, with right certainly the air outlet to the air current that the fan air intake outside flows blocks, reduces the air current among the new trend device and flows backward to the fan air intake from the air outlet, is favorable to improving the effective air inlet area of fan air intake, thereby be favorable to reducing the noise of new trend device and the air conditioner that has this new trend device, the air inlet volume of the air conditioner that improves new trend device and have this new trend device, improve new trend air inlet effect, improve user experience.

In some embodiments, the fan housing includes a first housing 12 and a second housing 11 opposite to each other, the first housing 12 and the second housing 11 together form a fan accommodating cavity, the fan 15 is disposed in the fan accommodating cavity, and the fan inlet is located on the first housing 12.

Specifically, in some embodiments, the first housing 11 includes a first housing main body portion 111 and a first extension portion 112 extending outward from the first housing main body portion 111. Accordingly, the second housing 12 includes a second housing main body portion 121 capable of being assembled corresponding to the first housing main body portion 111, and a second extension portion 122 extending outward from the second housing main body portion 121 and capable of being assembled corresponding to the first extension portion 112. The first housing body 111 is formed with a first recess 1110, and the second housing body 121 is correspondingly formed with a second recess (not shown). The first extension 112 is formed with a third groove 1120 communicating with the first groove 1110. The third recess 1120 has a first opening on a side away from the first recess 1110. Accordingly, the second extension portion 122 is formed with a fourth groove 1220 opposite to the third groove 1120 and capable of communicating with the second groove, and a side of the fourth groove 1220 away from the second groove has a second opening.

Based on the above-mentioned structure of the first housing 11 and the second housing 12, when the first housing 11 and the second housing 12 are assembled together, the first housing main body portion 111 and the second housing main body portion 121 are assembled correspondingly, and the first extension portion 112 and the second extension portion 122 are assembled correspondingly. Fan accommodating cavities are formed at the first groove 1110 and the second groove, a fan air outlet channel is formed at the third groove 1120 and the fourth groove 1220, and an air outlet 102 is formed at the outer end (i.e. the first opening and the second opening) of the air outlet channel. The air outlet channel is correspondingly disposed outside the air outlet end 152 of the fan 15.

As shown in fig. 3, the first casing 11 and the second casing 12 are assembled together, and a volute tongue structure is formed at a joint of the fan accommodating cavity and the fan air outlet channel, and the inventor(s) have found through research that the arrangement of the volute tongue structure makes the condition of airflow backflow obvious when the airflow flows in the fresh air device, so that a large noise is easily generated, and the fresh air volume is reduced.

In some embodiments, a backflow barrier 1204 is disposed on the first housing 12.

Referring to FIG. 3, in some embodiments, the backflow prevention plate 1204 is integrally disposed with the first housing 12. The backflow prevention plate 1204 is provided as a part of the first casing 12.

Continuing with fig. 3, in some embodiments, the blower inlet is circular, such as a circular area with a center O as shown in fig. 3. The side of the backflow barrier 1204 near the center of the fan inlet (i.e., the circle O) has a first side 1201 and a second side 1202. Accordingly, the backflow prevention plate 1204 is at least a baffle structure corresponding to the area between the arc-shaped dotted line 1203 and the first side 1201 and the second side 1202. The fan inlet is provided with the backflow barrier 1204 to form a new air inlet opening 120. The air inlet opening 120 may be a shaped opening as shown in fig. 3. Correspondingly, the fan inlet is a circular area formed by the air inlet opening 120 and the backflow blocking plate 1204 together.

Alternatively, in this embodiment, the side of the fan inlet close to the air outlet 102 may be understood as the area where the circular fan inlet is located above the line R passing through the circle center O and extending in the transverse direction. Wherein, the air outlet 102 and the air inlet of the fan are arranged in a staggered way in the longitudinal direction.

Please refer to fig. 3 and 4, the diameter of the air inlet of the fan is a, and the diameter of the fan is D. The inventor(s) found through research that in some embodiments, a is greater than or equal to 0.7D and less than or equal to 0.9D between the diameter of the fan air inlet and the diameter of the fan 15, and the fan 15 can well drive fresh air entering the fan air inlet to the air outlet channel.

In some embodiments, first side 1201 and second side 1202 are straight edges. The following condition is satisfied between the length b of the first side edge 1201 and the diameter a of the fan air inlet: b is more than or equal to 0.4a and less than or equal to a, and the backflow blocking plate 1204 has a good effect of blocking airflow backflow.

Further, in some embodiments, the included angle α formed between first side edge 1201 and second side edge 1202 satisfies the following condition: alpha is more than or equal to 90 degrees and less than or equal to 180 degrees, and the backflow blocking plate 1204 has better effect of blocking the backflow of the airflow.

Further, the distance L between the first side 1201 and the center of the fan air inlet (i.e., the circle center O) and the diameter a of the fan air inlet satisfy the following condition: l is more than or equal to 0.1a and less than or equal to 0.5a, and the backflow blocking plate 1204 has a good effect of blocking airflow backflow.

It should be noted that the backflow prevention plate 1204 may satisfy any one of the above conditions of 0.4 a. ltoreq. b.ltoreq.a, 90. ltoreq. α.ltoreq.180, and 0.1 a. ltoreq. L.ltoreq.0.5 a, or a combination of any two of the above conditions. The application does not limit the method, and the method can be set according to specific conditions.

It should be further noted that the backflow prevention plate may also be assembled to the first housing as a separate component, and may prevent the corresponding position of the air inlet of the blower. In addition, the backflow barrier plate can also be an independent part arranged outside the first shell, and the backflow barrier plate is not limited in the application and can be arranged according to specific conditions.

Further, in some embodiments, an air inlet housing 13 is disposed on a side of the fan housing close to the air inlet of the fan. The air inlet shell 13 and the fan shell form an air inlet cavity together, and an air inlet of the fan is used as an outlet of the air inlet cavity. The intake housing 13 is also provided with an intake chamber inlet 101. The air inlet cavity, the fan accommodating cavity and the fan air outlet channel together form an internal flow channel of the fresh air device 100 for fresh air flow to flow. The inlet 101 of the air inlet chamber serves as an air inlet of the fresh air device 100, and the outlet 102 serves as an air outlet of the fresh air device 100.

Specifically, as shown in fig. 2, in some embodiments, the air inlet housing 13 is assembled on the first housing 12 to form an air inlet cavity together with the first housing 12. The air inlet chamber is located on the side of the first housing 12 remote from the fan 15.

Alternatively, the first casing 12 is provided with a first air inlet duct portion 123 having a fifth groove 1230 formed therein, and the air inlet casing 13 is provided with a second air inlet duct portion 132 having a sixth groove formed therein. The sixth groove corresponds to the fifth groove 1320. The first casing 12 and the air inlet casing 13 are assembled together, and an air inlet duct is formed at the fifth groove 1230 and the sixth groove. The outer end of the air inlet duct is correspondingly formed with the air inlet cavity inlet 101.

Further, in some embodiments, the fresh air device 100 also includes a sidewall 16. The side wall 16 forms an air inlet chamber together with the first casing 12 and the air inlet casing 13.

Further, in some embodiments, a filter screen 14 is disposed in the air inlet chamber, and the fan inlet and the air inlet chamber inlet 101 are located on opposite sides of the filter screen 14, so that the filter screen 14 can filter the airflow passing through the fresh air device 100.

The present application further provides an air conditioner. The air conditioner may be a fresh air conditioner, which may include a fresh air device 100 as described above.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims

1. The utility model provides a new trend device, its characterized in that, includes fan and fan casing, the fan is located in the fan casing, the fan casing is equipped with fan air intake and air outlet, the fan has the air inlet end, the air inlet end with the fan air intake corresponds the setting, the fan air intake is close to one side of air outlet is provided with the backward flow barrier plate, the backward flow barrier plate be used for right certainly the air outlet to the air current that the fan air intake outside flows blocks.

2. The fresh air device as claimed in claim 1, wherein the fan housing comprises first and second opposing housings that together define a fan receiving cavity, the fan being disposed in the fan receiving cavity, and the fan inlet being located on the first housing.

3. The fresh air device as claimed in claim 2, wherein the backflow barrier is disposed on the first housing.

4. The fresh air device as claimed in claim 3, wherein the backflow barrier is integrally provided with the first housing.

5. The fresh air device as claimed in claim 1, wherein the fan inlet is circular.

6. The fresh air device as claimed in claim 5, wherein the diameter of the fan inlet is a, the diameter of the fan is D, and the following condition is satisfied between the diameter a of the fan inlet and the diameter D of the fan: a is more than or equal to 0.7D and less than or equal to 0.9D.

7. The fresh air device as claimed in claim 5, wherein the diameter of the fan inlet is a, one side of the backflow barrier plate near the center of the fan inlet has a first side edge, the first side edge is a straight edge, and the length b of the first side edge and the diameter a of the fan inlet satisfy the following condition: b is more than or equal to 0.4a and less than or equal to a.

8. The fresh air device as claimed in claim 7, wherein a second side edge connected to the first side edge is provided on a side of the backflow barrier plate close to the center of the fan inlet, the second side edge is a straight edge, and an included angle α formed between the first side edge and the second side edge satisfies the following condition: alpha is more than or equal to 90 degrees and less than or equal to 180 degrees; and/or the presence of a gas in the gas,

9. The fresh air device as claimed in any one of claims 1 to 8, wherein an air inlet housing is provided on a side of the fan housing adjacent to the fan inlet, the air inlet housing and the fan housing together form an air inlet chamber, and the fan inlet serves as an outlet of the air inlet chamber.

10. The fresh air device as claimed in claim 9, wherein the air inlet housing is provided with an inlet of an air inlet chamber, a filter screen is disposed in the air inlet chamber, and the fan inlet and the inlet of the air inlet chamber are disposed on opposite sides of the filter screen.

11. An air conditioner characterized in that it comprises a fresh air device according to any one of claims 1 to 10.