阅读说明：本技术 新风装置 (Fresh air device ) 是由 宋鹏 范哲柳 程冬杰 曹端辉 安智 罗镇雄 张华波 梁烘嘉 于 2019-10-31 设计创作，主要内容包括：本发明提供了一种新风装置,包括：外壳具有第一连通口、第二连通口以及与第一连通口和第二连通口均连通设置的连通通道,第一连通口用于与室内空气连通,第二连通口用于与室外空气连通；连通通道内的气流具有由第二连通口流向第一连通口的第一流动方向和由第一连通口流向第二连通口的第二流动方向；过滤件设置在连通通道内；清洁机构包括清洁部,清洁部与过滤件贴合设置,清洁部可活动地设置在过滤件上；其中,当连通通道内的气流沿第二流动方向流动时,清洁部相对过滤件运动,以通过清洁部使过滤件表面的积尘从过滤件上脱落,并通过连通通道内的气流将积尘带至室外。以解决现有技术中不便于对新风装置的过滤件进行清洁处理的技术问题。(The invention provides a fresh air device, comprising: the shell is provided with a first communicating port, a second communicating port and a communicating channel communicated with the first communicating port and the second communicating port, the first communicating port is used for being communicated with indoor air, and the second communicating port is used for being communicated with outdoor air; the gas flow in the communication passage has a first flow direction flowing from the second communication port to the first communication port and a second flow direction flowing from the first communication port to the second communication port; the filter element is arranged in the communicating channel; the cleaning mechanism comprises a cleaning part, the cleaning part is attached to the filter piece, and the cleaning part is movably arranged on the filter piece; when the airflow in the communication channel flows along the second flow direction, the cleaning part moves relative to the filter piece so as to enable the dust on the surface of the filter piece to fall off from the filter piece through the cleaning part and bring the dust to the outside through the airflow in the communication channel. In order to solve the technical problem that the filtration piece of the fresh air device is not convenient to clean in the prior art.)

1. A fresh air device, comprising:

a housing (10), the housing (10) having a first communication port (11), a second communication port (12) and a communication channel communicated with the first communication port (11) and the second communication port (12), the first communication port (11) being used for communicating with indoor air, the second communication port (12) being used for communicating with outdoor air; the gas flow in the communication channel has a first flow direction from the second communication port (12) to the first communication port (11) and a second flow direction from the first communication port (11) to the second communication port (12);

a filter member (20) disposed in the communication passage to filter air in the communication passage through the filter member (20);

the cleaning mechanism (30) comprises a cleaning part (31), the cleaning part (31) is attached to the filter piece (20), and the cleaning part (31) is movably arranged on the filter piece (20);

when the air flow in the communication passage flows along the second flow direction, the cleaning part (31) moves relative to the filter member (20) so that the dust on the surface of the filter member (20) is separated from the filter member (20) by the cleaning part (31) and is brought out of the room by the air flow in the communication passage.

2. The fresh air device as claimed in claim 1, wherein the cleaning part (31) is a cleaning brush rotatably disposed in the communication passage.

3. The fresh air device as recited in claim 1, wherein the cleaning mechanism (30) further comprises:

the fan blade (32) is rotatably arranged in the communicating channel, and the cleaning part (31) is arranged on the fan blade (32) so that when the fan blade (32) is driven to rotate by airflow in the communicating channel, the cleaning part (31) is driven to rotate by the fan blade (32).

4. The fresh air device as recited in claim 1, wherein the cleaning mechanism (30) further comprises:

a limiting assembly (33), at least part of the limiting assembly (33) is used for abutting and limiting with the cleaning part (31) so as to limit the movement of the cleaning part (31) through the limiting assembly (33) when the airflow in the communication channel flows along the first flow direction.

5. The fresh air device as recited in claim 3, wherein the cleaning mechanism (30) further comprises:

the limiting component (33), at least part of the limiting component (33) is used for being abutted and limited with the fan blade (32), so that when the airflow in the communication channel flows along the first flow direction, the movement of the fan blade (32) is limited through the limiting component (33).

6. The fresh air device according to claim 5, wherein the fan blade (32) is arranged on one side of the filter element (20), the limiting component (33) is arranged on the other side of the filter element (20), and at least part of the limiting component (33) is connected with a rotating shaft of the fan blade (32).

7. The fresh air device according to claim 5, wherein the limiting component (33) comprises:

a pawl (331) provided on the housing (10);

the ratchet wheel (332) is rotatably arranged on the shell (10), the pawl (331) is matched with the ratchet wheel (332), and the ratchet wheel (332) is connected with the fan blade (32); the pawl (331) limits rotation of the ratchet (332) when the airflow in the communication passage flows in the first flow direction; when the airflow in the communication channel flows along the second flow direction, the fan blade (32) drives the ratchet wheel (332) to rotate.

8. The fresh air device as claimed in claim 7, further comprising:

the support (40), the support (40) sets up on shell (10), support (40) include annular casing (41), the circulation passageway that annular casing (41) enclose with the communication channel intercommunication, pawl (331) set up on annular casing (41).

9. The fresh air device as claimed in claim 8, wherein the bracket (40) further comprises:

the supporting arms (42) are arranged on the annular shell (41) at intervals, one ends of the supporting arms (42) are arranged at the other ends of the supporting arms (42) in a connected mode, and the pawl (331) is arranged on any one of the supporting arms (42).

10. The fresh air device according to claim 1, characterized in that the filter element (20) is a filter mesh which is arranged at the second communication opening (12).

11. The fresh air device as claimed in claim 1, further comprising:

the fan component (50) is arranged on the shell (10), and the fan component (50) comprises driving fan blades (51) so as to change the flowing direction of the airflow in the communication channel by changing the turning direction of the driving fan blades (51).

Technical Field

The invention relates to the technical field of fresh air devices, in particular to a fresh air device.

Background

At present, the clean structure of filter screen of new trend device generally includes brush, driving motor and ash storage box, and after dust, debris pile up ash storage box, need the manual work to wash after dismantling ash storage box.

However, the fresh air device in the prior art cannot automatically perform cleaning treatment, and is inconvenient for a user to operate.

Disclosure of Invention

The invention mainly aims to provide a fresh air device, and aims to solve the technical problem that the filter element of the fresh air device is inconvenient to clean in the prior art.

In order to achieve the above object, the present invention provides a fresh air device, including: the shell is provided with a first communication port, a second communication port and a communication channel communicated with the first communication port and the second communication port, the first communication port is used for being communicated with indoor air, and the second communication port is used for being communicated with outdoor air; the gas flow in the communication passage has a first flow direction flowing from the second communication port to the first communication port and a second flow direction flowing from the first communication port to the second communication port; the filter element is arranged in the communication channel so as to filter the air in the communication channel through the filter element; the cleaning mechanism comprises a cleaning part, the cleaning part is attached to the filter piece, and the cleaning part is movably arranged on the filter piece; when the airflow in the communication channel flows along the second flow direction, the cleaning part moves relative to the filter piece so as to enable the dust on the surface of the filter piece to fall off from the filter piece through the cleaning part and bring the dust to the outside through the airflow in the communication channel.

Further, the cleaning part is a cleaning brush, and the cleaning brush is rotatably arranged in the communication channel.

Further, the cleaning mechanism further comprises: the fan blade is rotatably arranged in the communicating channel, and the cleaning part is arranged on the fan blade of the fan blade so as to drive the cleaning part to rotate through the fan blade when the air flow in the communicating channel drives the fan blade to rotate.

Further, the cleaning mechanism further comprises: the limiting assembly is used for being abutted and limited with the cleaning part at least in part, so that when the airflow in the communication channel flows along the first flowing direction, the movement of the cleaning part is limited through the limiting assembly.

Further, the cleaning mechanism further comprises: the limiting assembly is used for being abutted and limited with the fan blade at least in part, and the air flow in the communicating channel limits the movement of the fan blade when flowing along the first flowing direction.

Furthermore, the fan blade is arranged on one side of the filter piece, the limiting assembly is arranged on the other side of the filter piece, and at least part of the limiting assembly is connected with the rotating shaft of the fan blade.

Further, spacing subassembly includes: a pawl disposed on the housing; the ratchet wheel is rotatably arranged on the shell, the pawl is matched with the ratchet wheel, and the ratchet wheel is connected with the fan blade; when the airflow in the communication channel flows along the first flow direction, the pawl limits the rotation of the ratchet wheel; when the airflow in the communicating channel flows along the second flow direction, the fan blade drives the ratchet wheel to rotate.

Further, new trend device still includes: the support, the support setting is on the shell, and the support includes annular housing, and the circulation passageway that annular housing encloses communicates with the intercommunication passageway, and the pawl setting is on annular housing.

Further, the support still includes: the one end interval of a plurality of support arms sets up on annular casing, and the setting is all connected to the other end of a plurality of support arms, and the pawl setting is on arbitrary support arm.

Further, the filtering piece is a filtering net which is arranged at the second communication port.

Further, new trend device still includes: the fan component is arranged on the shell and comprises a driving fan blade, and the flowing direction of airflow in the communicating channel is changed by changing the turning direction of the driving fan blade.

By applying the technical scheme of the invention, when the air flow in the communication device flows along the second flow direction, the cleaning part moves relative to the filtering piece, and the cleaning part is attached to the filtering piece, so that the cleaning part can scrape off the accumulated dust on the surface of the filtering piece, and the accumulated dust is brought to the outdoor by the air flow after falling off from the filtering piece, thereby completing the automatic cleaning process of the filtering piece and facilitating the cleaning treatment of the filtering piece of the fresh air device. Therefore, the technical problem that the filter element of the fresh air device is inconvenient to clean in the prior art can be solved through the technical scheme provided by the invention.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows an exploded view of a fresh air device provided according to an embodiment of the present invention;

fig. 2 is a schematic flow diagram illustrating an airflow of a fresh air device provided according to an embodiment of the present invention when fresh air is introduced into a room;

FIG. 3 is a schematic view illustrating the flow direction of the fresh air device when the fresh air device exhausts the fresh air in the room according to the embodiment of the invention;

FIG. 4 shows a schematic structural view of the stop assembly of FIG. 2;

FIG. 5 shows a schematic structural view of the stop assembly of FIG. 3;

fig. 6 shows a schematic structural diagram of a driving blade provided according to an embodiment of the present invention;

fig. 7 shows a front view of a drive blade provided according to an embodiment of the invention; and

fig. 8 shows a side view of a driving blade provided according to an embodiment of the present invention.

Wherein the figures include the following reference numerals:

10. a housing; 11. a first communication port; 12. a second communication port; 20. a filter member; 30. a cleaning mechanism; 31. a cleaning section; 32. a fan blade; 33. a limiting component; 331. a pawl; 332. a ratchet wheel; 40. a support; 41. an annular housing; 42. a support arm; 50. a fan component; 51. driving the fan blade; 52. a volute; 60. a drive shaft; 70. and (7) mounting frames.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1 to 8, the fresh air device according to the embodiment of the present invention includes a housing 10, a filter member 20, and a cleaning mechanism 30, the housing 10 has a first communication port 11, a second communication port 12, and a communication passage provided in communication with both the first communication port 11 and the second communication port 12, the first communication port 11 is for communicating with indoor air, the second communication port 12 is for communicating with outdoor air, and an air flow in the communication passage has a first flow direction flowing from the second communication port 12 to the first communication port 11 and a second flow direction flowing from the first communication port 11 to the second communication port 12. Specifically, when the flow direction of the air flow is the first flow direction, at the moment, the fresh air device is used for providing fresh air indoors. When the flow direction of the air flow is the second flow direction, the fresh air device is used for exhausting air to the outside. The filter member 20 is disposed in the communication passage to filter air in the communication passage through the filter member 20. Cleaning mechanism 30 includes clean portion 31, and clean portion 31 and the setting of laminating of filtering piece 20, clean portion 31 movably sets up on filtering piece 20. When the air flow in the communication passage flows in the second flow direction, the cleaning portion 31 moves relative to the filter member 20, so that the dust on the surface of the filter member 20 is removed from the filter member 20 by the cleaning portion 31, and the dust is carried to the outside of the room by the air flow in the communication passage. The housing 10 in this embodiment may be an air duct.

Adopt the new trend device that this embodiment provided, when the new trend device was used for airing exhaust to outdoor, cleaning portion 31 will move for filtering piece 20 to scrape down the laying dust on filtering piece 20 surface through cleaning portion 31, take to outdoor with the laying dust that drops under the effect of air current, thereby be convenient for carry out self-cleaning to filtering piece 20. Therefore, through the technical scheme that this embodiment provided, can solve prior art and be not convenient for carry out the technical problem of cleaning to filtering piece 20 of new trend device.

To further enhance the cleaning effect, the cleaning portion 31 in the present embodiment is a cleaning brush, and the cleaning brush is rotatably disposed in the communication passage. Specifically, when the air flow in the communication passage flows in the second flow direction, the cleaning brush brushes off the dust deposit on the surface of the filter member 20, and the dust deposit is discharged to the outside by the air flow.

Specifically, the cleaning mechanism 30 in this embodiment further includes a fan blade 32, the fan blade 32 is rotatably disposed in the communicating channel, and the cleaning portion 31 is disposed on the fan blade 32, so that when the fan blade 32 is driven by the airflow in the communicating channel to rotate, the cleaning portion 31 is driven by the fan blade 32 to rotate. With such an arrangement, the fan blade 32 can rotate under the action of the airflow, and the fan blade 32 drives the cleaning brush to brush down the dust on the filter element 20, so that the dust can be discharged to the outside through the airflow. By adopting the arrangement, the cleaning treatment of the filter piece 20 can be completed without arranging an additional driving part to drive the fan blade 32, the structure is simple and reliable, and the manufacturing cost is reduced.

Specifically, the cleaning mechanism 30 in this embodiment further includes a limiting assembly 33, and at least a portion of the limiting assembly 33 is configured to limit abutment with the cleaning portion 31, so that when the airflow in the communication channel flows in the first flow direction, the movement of the cleaning portion 31 is limited by the limiting assembly 33. Like this, when new trend device is to indoor fresh air that introduces, clean portion 31 is restricted by spacing subassembly 33 and can not clean filtering piece 20, and then has avoided introducing the dust that will filter on piece 20 at the new trend in-process and has brought indoor condition into, has improved the quality of new trend to improve user's comfort level.

Specifically, at least part of the limiting assembly 33 in this embodiment is used for abutting and limiting the fan blade 32, so that when the airflow in the communication channel flows along the first flow direction, the movement of the fan blade 32 is limited by the limiting assembly 33. Adopt such setting, under spacing subassembly 33's limiting displacement, when the new trend device is to indoor fresh air that introduces, fan blade 32 will not drive cleaning cloth and clean filtering piece 20 to can not bring the laying dust on filtering piece 20 into when introducing the new trend, further improve the quality of air inlet, with better improvement user's comfort level.

In the embodiment, the fan blade 32 is disposed on one side of the filter member 20, the limiting component 33 is disposed on the other side of the filter member 20, and at least a part of the limiting component 33 is connected with the rotation shaft of the fan blade 32. By adopting the arrangement, the space layout is more compact, and meanwhile, the limiting assembly is convenient to adjust, so that the cleaning part 31 is better limited through the limiting assembly 33, and the cleaning effect is better played.

Specifically, the limiting member 33 in this embodiment includes a pawl 331 and a ratchet 332, and the pawl 331 is disposed on the housing 10. The ratchet 332 is rotatably disposed on the housing 10, the pawl 331 is disposed in cooperation with the ratchet 332, and the ratchet 332 is connected to the fan blade 32. When the air flow in the communication channel flows in the first flow direction, the clamping jaw blocks ratchet 332 so that pawl 331 limits the rotation of ratchet 332. When the airflow in the communication channel flows along the second flow direction, the blade 32 rotates under the action of the wind force, the blade 32 drives the ratchet 332 to rotate, and the cleaning brush on the blade 32 stirs the dust on the filter element 20, so that the dust is discharged to the outside through the airflow. With such an arrangement, the ratchet 332 and the pawl 331 are simple in structure, convenient to produce and manufacture, good in limiting effect, and convenient to reliably limit the cleaning portion 31.

In order to facilitate the installation of the limiting component 33, the fresh air device in this embodiment further includes a support 40, the support 40 is disposed on the housing 10, the support 40 includes an annular housing 41, a circulation channel surrounded by the annular housing 41 is communicated with the communication channel, the pawl 331 is disposed on the annular housing 41, and the ratchet 332 is located in the circulation channel. With such an arrangement, by arranging both the pawl 331 and the ratchet 332 on the bracket 40, it is possible to facilitate assembly of the pawl 331 and the ratchet 332, so that the ratchet 332 and the pawl 331 can stably perform a limiting function.

In order to further improve the structural stability of the support 40, the support 40 of the present embodiment further includes a plurality of support arms 42, one ends of the plurality of support arms 42 are disposed on the annular housing 41 at intervals, the other ends of the plurality of support arms 42 are all connected, and the pawl 331 is disposed on any one of the support arms 42. Specifically, the support 40 in this embodiment further includes an annular ring, the annular ring is located in the circulation channel, the center line of the annular ring is overlapped with the center line of the annular housing 41, the number of the support arms 42 is three, one end of each of the three support arms 42 is disposed on the inner wall of the annular housing 41, and the other end of each of the three support arms 42 is disposed on the annular ring.

Specifically, the filter member 20 in this embodiment is a filter net, and the filter net is disposed at the second communication port 12. By adopting the arrangement, outdoor fresh air can be conveniently filtered, so that the quality of introduced fresh air is improved, and the use comfort of a user is further improved.

In this embodiment, in order to facilitate installation of the fan blades 32, the fresh air device further includes an installation frame 70, and the installation frame 70 is located in the flow channel. Mounting bracket 70 includes support body and connecting portion, and the support body setting is on shell 10, and connecting portion are connecting sleeve, and connecting sleeve is conical sleeve structure, is provided with conical bellying on the fan blade 32, and conical bellying sets up on connecting sleeve, and conical bellying can be at the connecting sleeve internal rotation to drive fan blade 32 and rotate under the effect of air current, and then drive the cleaning brush through fan blade 32 and clean filtering piece 20. The fresh air device in this embodiment further includes a transmission shaft 60, one end of the transmission shaft 60 is connected to the rotation shaft of the fan blade 32, and the other end of the transmission shaft 60 passes through the filter element 20 and is connected to the ratchet 332, so that the rotation of the fan blade 32 is limited by the ratchet 332, and a limiting effect is reliably achieved.

In this embodiment, the fresh air device further includes a fan component 50, the fan component 50 is disposed on the housing 10, the fan component 50 includes a driving blade 51 and a motor, and the motor drives the driving blade 51 to rotate, so as to change the flow direction of the air flow in the communication channel by changing the rotation direction of the driving blade 51. The fan assembly 50 in this embodiment further includes a volute 52, and the driving fan 51 is disposed in the volute 52.

As shown in fig. 2, with the fresh air device provided in this embodiment, the driving fan 51 is driven by the dc motor to rotate forward under a normal working condition, which is also referred to as a fresh air conveying condition, and at this time, outdoor air flows from the outside through the bracket 40, the ratchet 332 mechanism, the fan 32, and the cleaning portion 31, then flows to the air duct, and finally enters the room after passing through the air duct in the volute 52, and at this time, the flow direction of the air enters the room from the outside, thereby playing a role of conveying the fresh air. As shown in fig. 4, at this time, the fan blade 32 (with the cleaning brush) device is forced to be locked and fixed by the pawl 331 in the ratchet 332 mechanism, and the fresh air conveying state can last for a long time, and meanwhile, dust can be accumulated on the filter screen, and the dust can be accumulated in the filter screen over time.

As shown in fig. 3, when the driving blade 51 stops working, a reverse voltage is applied to the motor to drive the driving blade 51 to rotate and rotate again, which is called as the reverse rotation of the driving fresh air blade 32, in this state, the indoor air can be discharged from the room, flows through the air channel in the volute 52, the driving blade 51, the air pipe, and the blade 32, and finally discharged to the outside through the ratchet 332 mechanism and the bracket 40 contacting with the outside, and at this time, the air flows from the room to the outside. As shown in fig. 5, in this state, the blade 32 (the cleaning brush with the brush) rotates under the action of wind force through the blade 32 itself, the brush (the cleaning brush) on the blade 32 also rotates together, and in the rotating process, the brush stirs dust on the filter screen on the air duct, and at this time, the ratchet 332 mechanism rotates together with the rotating shaft; meanwhile, the accumulated dust loosened by the brush on the filter screen (on the fan blade 32) can be discharged to the outside along with the indoor wind from the indoor to the outdoor direction, so that the self-cleaning function is realized.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects: through changing turning to of motor drive fan blade, even drive fan blade is just reversing and is switched over, can make the tuber pipe can air inlet and air-out, can blow the dust stirred by brush (cleaning brush) on the filter screen to outdoor during the air-out, play the cleaning action.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.