CN215637538U

CN215637538U - Cross-flow fan and air conditioner

Info

Publication number: CN215637538U
Application number: CN202121277664.4U
Authority: CN
Inventors: 夏维倩
Original assignee: Aux Air Conditioning Co Ltd; Ningbo Aux Electric Co Ltd
Current assignee: Aux Air Conditioning Co Ltd; Ningbo Aux Electric Co Ltd
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2022-01-25
Anticipated expiration: 2031-06-08

Abstract

The application provides a cross-flow fan and an air conditioner, and relates to the technical field of air conditioners. According to the cross-flow fan, the light-emitting piece of the ultraviolet sterilization assembly is arranged inside the cross-flow fan blade assembly, and the ultraviolet sterilization assembly can rotate relative to the cross-flow fan blade assembly, so that the cross-flow fan blade assembly rotates and the light-emitting piece can be kept stationary in the operation process of an air conditioner, ultraviolet light emitted by the light-emitting piece can irradiate each blade of the cross-flow fan blade assembly, and bacteria are prevented from breeding on the surfaces of the blades; meanwhile, bacteria suspended inside the cross-flow fan blade assembly can be inhibited under ultraviolet illumination. Therefore, the cross-flow fan provided by the embodiment of the application has a better sterilization effect and is not easy to breed bacteria. The air conditioner provided by the application comprises the cross-flow fan and the frame, wherein the cross-flow fan blade assembly is rotatably connected to the frame, and the ultraviolet sterilization assembly is fixedly connected to the frame.

Description

Cross-flow fan and air conditioner

Technical Field

The application relates to the technical field of air conditioners, in particular to a cross-flow fan and an air conditioner.

Background

When the indoor unit of the air conditioner sucks indoor air, bacteria, mold, viruses and the like floating indoors are sucked into the air conditioner, and some microorganisms harmful to human bodies can be produced in the air conditioner. In particular, in the cross flow fan, mold spores in the air collide with the tips of the blades and adhere to the tips of the blades, and mold hyphae grow out to block the gaps between the blades, resulting in a decrease in the air volume. Therefore, some air conditioners having a function of suppressing the growth of microorganisms have been developed so far. However, the sterilization effect of the existing air conditioner is still not good.

SUMMERY OF THE UTILITY MODEL

The problem that this application will be improved is the not good problem of current air conditioner sterilization effect.

In order to solve the above problems, in a first aspect, the present application provides a cross-flow fan, which is applied to an air conditioner and includes a cross-flow fan blade assembly and an ultraviolet sterilization assembly, where the ultraviolet sterilization assembly includes a fixed shaft and a light emitting member connected to the fixed shaft, the light emitting member is located in the cross-flow fan blade assembly and is used to emit ultraviolet light, and the fixed shaft coincides with a rotation axis of the cross-flow fan blade assembly and is rotatably connected with two ends of the cross-flow fan blade assembly.

In the embodiment of the application, the light-emitting piece of the ultraviolet sterilization assembly is arranged inside the cross-flow fan blade assembly, and the ultraviolet sterilization assembly can rotate relative to the cross-flow fan blade assembly, so that the cross-flow fan blade assembly rotates and can be kept still in the operation process of the air conditioner, and ultraviolet light emitted by the light-emitting piece can irradiate each blade of the cross-flow fan blade assembly, so that bacteria are prevented from breeding on the surfaces of the blades; meanwhile, bacteria suspended inside the cross-flow fan blade assembly can be inhibited under ultraviolet illumination. The ultraviolet sterilization assembly of the cross-flow fan provided by the embodiment of the application can effectively kill bacteria suspended in each blade of the cross-flow fan blade assembly and the inner space, and has fewer sterilization dead angles. And the light-emitting piece is arranged in the cross-flow fan blade assembly, so that the light-emitting piece is relatively close to the blades, the emitted ultraviolet light can be received by the cross-flow fan blade assembly as far as possible, and the sterilization efficiency is relatively high. Therefore, the cross-flow fan provided by the embodiment of the application has a better sterilization effect and is not easy to breed bacteria.

In an optional embodiment, the cross-flow fan further comprises a driving member for driving the cross-flow fan blade assembly to rotate relative to the fixing shaft, the cross-flow fan blade assembly has a first end and a second end, the driving member is connected to the first end of the cross-flow fan blade assembly in a transmission manner, the fixing shaft extends out from the second end of the cross-flow fan blade assembly, the ultraviolet sterilization assembly further comprises a line connected with the light emitting member, and the line penetrates through the inside of the fixing shaft and extends out from the second end of the cross-flow fan blade assembly. In this embodiment, the driving member is disposed at one end of the cross-flow fan assembly to provide power for the rotation of the cross-flow fan assembly, so that the line of the light emitting member is inserted into the fixing shaft and led out from the other end of the cross-flow fan assembly, which is a reasonable wiring manner, and is beneficial to the good operation of the cross-flow fan and even the air conditioner.

In an optional embodiment, two ends of the cross-flow fan blade assembly are respectively and rotatably connected with the fixed shaft through bearings.

In an optional embodiment, the cross-flow fan blade assembly comprises two end plates and a plurality of blades, the two end plates are arranged in the axial direction of the cross-flow fan blade assembly at intervals, the blades are arranged between the two end plates, connecting holes are formed in the end plates, and the fixing shaft penetrates through the connecting holes and is rotatably connected with the end plates through bearings.

In an alternative embodiment, the end plate includes a plate body and a rotation shaft connected to the plate body, and the connection hole is opened in the rotation shaft. Through setting up the axis of rotation to set up the connecting hole in the axis of rotation, be convenient for increase the length of connecting hole, be favorable to setting up the bearing, also make the normal running fit between fixed axle and the axis of rotation more stable. Furthermore, the rotating shaft is arranged to protrude out of the plate body, so that the through-flow fan blade assembly is conveniently and rotatably connected with the frame of the air conditioner through the rotating shaft, and the through-flow fan blade assembly is conveniently and rotatably connected with the driving piece through the rotating shaft.

In an optional embodiment, the ultraviolet sterilization assembly comprises a fixed shaft, two ends of the fixed shaft are respectively and rotatably connected with two ends of the cross-flow fan blade assembly, the light emitting members are ultraviolet light emitting diodes, and the plurality of light emitting members are arranged on the fixed shaft along the length direction of the fixed shaft.

In an alternative embodiment, the ultraviolet sterilization assembly comprises two fixed shafts, the light emitting member is an ultraviolet fluorescent tube, and the two fixed shafts are respectively connected to two ends of the ultraviolet fluorescent tube.

In an alternative embodiment, the side of the luminous element facing the air outlet of the air conditioner is provided with a reflector. In the embodiment, the light reflecting piece is arranged, so that the light emitting piece can be prevented from emitting ultraviolet light to the air outlet of the air conditioner, and the ultraviolet light is prevented from harming a user; simultaneously, the reflection of ultraviolet ray reflection meeting air conditioner inside of reflector will be towards the air outlet direction for the intensity of the ultraviolet ray towards the air conditioner inside is higher, also is favorable to the ultraviolet ray of make full use of luminescent part reflection like this, improves sterilization efficiency.

In an alternative embodiment, the light emitting member emits ultraviolet light having a wavelength of less than 280 nm. Because the ultraviolet light with the wavelength below 280nm is short-wave ultraviolet light (UV-C), the sterilization effect is better than that of the ultraviolet light with the wavelength above 280nm, in the embodiment, the light-emitting piece with the light-emitting wavelength less than 280nm is selected for sterilization, and the sterilization effect is improved.

In a second aspect, the present application provides an air conditioner, including a frame and the cross-flow fan of any one of the foregoing embodiments, the cross-flow fan blade assembly is rotatably connected to the frame, and the ultraviolet sterilization assembly is fixedly connected to the frame.

Drawings

FIG. 1 is a schematic view of a crossflow blower in one embodiment of the present application;

FIG. 2 is a schematic view of a crossflow blower in accordance with another embodiment of the present application;

FIG. 3 is a schematic view of the interior of an air conditioner according to an embodiment of the present application;

FIG. 4 is a schematic view of a cross-flow fan coupled to a frame according to one embodiment of the present disclosure.

Description of reference numerals: 010-an air conditioner; 100-cross flow fan; 110-cross-flow fan blade assembly; 110 a-a first end; 110 b-a second end; 111-end plate; 112-a plate body; 113-a rotating shaft; 114-a blade; 120-ultraviolet sterilizing component; 121-a fixed shaft; 122-a light emitting member; 123-line; 124-a light reflecting member; 130-a driver; 200-a heat exchanger; 300-an air outlet; 400-framework.

Detailed Description

The existing air conditioner internal unit usually adopts a cross-flow fan to realize air supply. When the air conditioner is operated, bacteria and mold floating in a room are often sucked into the air conditioner from an air inlet of the air conditioner along with air flow, and then the air flow is sent out from an air outlet of the air conditioner. Specifically, the airflow may enter the crossflow blower from a blade gap on one side of the crossflow blower and then exit from a blade gap on the other side of the crossflow blower. The air conditioner in the refrigerating operation has the internal temperature lower than the dew point, and is easy to form a high-humidity environment suitable for the breeding of microorganisms. The breeding of bacteria can damage the health of users, even in some cross-flow fans, mould spores collide and attach to the front ends of the blades and grow mould hyphae to block the gaps of the blades, so that the air quantity is reduced. Some prior art air conditioners use some methods to sterilize (bacteriostatic). For example, antibacterial treatment is performed on resin materials and metal materials used for air conditioners to inhibit the growth of microorganisms such as bacteria; or the air conditioner is filled with ozone or ultraviolet rays are used for removing microorganisms in the indoor unit. However, the antibacterial treatment of the resin material and the metal material can only be performed on the antibacterial surface, and microorganisms in a floating state cannot be inhibited, and bacteria suspended in the airflow can still be blown to the activity area of the user along with the airflow. Although ozone has an effect of inhibiting planktonic microorganisms, it requires exposure to a relatively high concentration for a long time, and therefore, it is impossible to sterilize the ozone during the operation of the air conditioner, and the sterilization treatment is troublesome. By means of ultraviolet rays, especially ultraviolet rays (UV-C) having a wavelength shorter than 280mm, the DNA of the microorganism is directly acted on to destroy the reproductive capacity of the microorganism, and the microorganism is directly killed. However, the ultraviolet irradiation method often has a dead space, and the sterilization effect is insufficient in the portion that cannot be irradiated, and therefore, the growth of microorganisms inside the air conditioner cannot be sufficiently suppressed. For example, the light source of ultraviolet light is arranged on one side close to the air outlet, so that the inside of the cross-flow fan blade component is difficult to irradiate, the deep inside of the air conditioner is far away from the light source, the irradiation intensity is greatly reduced, and the sterilization effect is poor.

In order to solve the problem that the existing air conditioner is difficult to inhibit the breeding of microorganisms such as bacteria, the embodiment of the application provides a cross-flow fan and an air conditioner provided with the same. In the cross-flow fan provided by the embodiment of the application, the light-emitting piece of the ultraviolet sterilization assembly is arranged inside the cross-flow fan blade assembly, and can be stationary relative to a frame of an air conditioner when the cross-flow fan blade assembly rotates, so that each blade in the cross-flow fan blade assembly can be irradiated by the light-emitting piece in the rotating process, the air flow inside the cross-flow fan blade assembly can be sterilized, and the sterilization dead angle is small. Therefore, the cross-flow fan and the air conditioner thereof have good bacteriostatic effect.

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below.

FIG. 1 is a schematic view of a crossflow blower 100 in one embodiment of the present application. As shown in fig. 1, a cross-flow fan 100 provided in the embodiment of the present application includes a cross-flow fan blade assembly 110 and an ultraviolet sterilization assembly 120. The cross-flow fan blade assembly 110 and the ultraviolet sterilization assembly 120 are rotatably connected, so that the ultraviolet sterilization assembly 120 can be fixed when the cross-flow fan blade assembly 110 rotates.

In this embodiment, the ultraviolet sterilization assembly 120 includes a fixing shaft 121 and a light emitting member 122 connected to the fixing shaft 121, the light emitting member 122 is located in the cross-flow fan blade assembly 110 and is used for emitting ultraviolet light, and the fixing shaft 121 coincides with a rotation axis of the cross-flow fan blade assembly 110 and is rotatably connected to two ends of the cross-flow fan blade assembly 110. In an alternative embodiment, crossflow blower 100 further comprises a drive 130 (see FIG. 4), drive 130 being adapted to drive the rotation of the crossflow fan assembly 110 relative to the stationary shaft 121.

In the embodiment of the present application, the fixing shaft 121 is used for fixing and supporting the light emitting member 122. Since the fixing shaft 121 needs to be kept stationary while the cross-flow fan assembly 110 rotates, at least one end thereof should protrude from the end of the cross-flow fan assembly 110 and be connected to the frame 400 of the air conditioner 010 (see fig. 3). In the embodiment of fig. 1, the left end of the fixing shaft 121 extends out of the cross-flow fan blade assembly 110, and the right end thereof does not extend out of the cross-flow fan blade assembly 110. Thus, the left end of the fixing shaft 121 can be fixed to the frame 400 of the air conditioner 010, and the right end of the cross-flow fan assembly 110 can be used for connecting the driving member 130. In this embodiment, the light-emitting member 122 of the ultraviolet sterilization assembly 120 is disposed inside the cross-flow fan blade assembly 110, and the ultraviolet sterilization assembly 120 is made to rotate relative to the cross-flow fan blade assembly 110, so that in the operation process of the air conditioner 010, the cross-flow fan blade assembly 110 rotates, the light-emitting member 122 can remain stationary, ultraviolet light emitted by the light-emitting member 122 can irradiate each blade 114 of the cross-flow fan blade assembly 110, and bacteria can be prevented from breeding on the surface of the blade 114; meanwhile, bacteria suspended inside the cross-flow fan blade assembly 110 can be inhibited under ultraviolet illumination. Almost all of the airflow finally delivered into the room passes through the inside of the cross-flow fan assembly 110, and therefore almost all of the airflow finally delivered into the room is sterilized. Therefore, the cross-flow fan 100 provided by the embodiment of the application has a better sterilization effect and is not easy to breed bacteria.

In this embodiment, the light emitting member 122 is located at the middle position of the cross-flow fan assembly 110, and is also located near the middle position of the air conditioner 010 after being installed in the air conditioner 010, and is relatively close to each of the blades 114, and other components and parts except the cross-flow fan assembly 110 are not too far away from the light emitting member 122. Since the irradiation intensity of the light is proportional to the inverse number of the square of the distance, except for the blades 114 of the cross-flow fan blade assembly 110, surfaces of other components inside the air conditioner 010, which can be irradiated by the light emitting member 122 (because the blades 114 have gaps therebetween, ultraviolet light can pass through), can also enjoy high irradiation intensity, and it is not easy to become a sterilization dead angle because some surfaces are too far away from the light emitting member 122 and the irradiation intensity is too low. For example, if the light emitting element 122 is disposed at the position of the air outlet 300, the surface of the air conditioner 010 far away from the air outlet 300 to be sterilized is far away from the light emitting element 122, which may be equivalent to the thickness of the air conditioner 010 itself, and the light intensity at this position may be very low; if the light emitting member 122 is disposed at the center of the air conditioner 010, the irradiation intensity is increased to 4 times if the distance between the light emitting member 122 and the above-mentioned position to be sterilized is reduced by half. One of the advantages of disposing the light emitting member 122 at the middle of the cross-flow fan assembly 110 is that the light emitting member 122 can be disposed at a position near the middle in the entire air conditioner 010.

In this embodiment, two ends of the cross-flow fan assembly 110 are respectively rotatably connected to the fixed shaft 121 through bearings. Specifically, the cross-flow fan assembly 110 includes two end plates 111 and a plurality of blades 114, the two end plates 111 are arranged at intervals in the axial direction of the cross-flow fan assembly 110, the blades 114 are arranged between the two end plates 111, and the plurality of blades 114 are arranged around the rotation axis of the cross-flow fan assembly 110, so as to define an inner space of the cross-flow fan assembly 110 together with the end plates 111. The end plate 111 is provided with a connection hole, and the fixing shaft 121 is inserted into the connection hole and rotatably connected with the end plate 111 through a bearing.

The end plate 111 includes a plate body 112 and a rotating shaft 113 connected to the plate body 112, and a connecting hole is opened in the rotating shaft 113 and is coaxial with the rotating shaft. In the present embodiment, the plate 112 is a circular plate, and the rotating shaft 113 is disposed coaxially with the plate 112. Through setting up axis of rotation 113 to set up the connecting hole in axis of rotation 113, be convenient for increase the length of connecting hole, be favorable to setting up the bearing, also make the normal running fit between fixed axle 121 and axis of rotation 113 more stable. Furthermore, the rotating shaft 113 is arranged to protrude from the outer side of the plate 112, which is convenient for the cross-flow blade assembly 110 to be rotatably connected with the frame 400 of the air conditioner 010 through the rotating shaft 113, and is convenient for the cross-flow blade assembly 110 to be in transmission connection with the driving member 130 through the rotating shaft 113.

In an alternative embodiment, the cross-flow fan assembly 110 has a first end 110a and a second end 110b, the driving member 130 is drivingly connected to the first end 110a of the cross-flow fan assembly 110, and the fixed shaft 121 extends from the second end 110b of the cross-flow fan assembly 110. In this embodiment, the first end 110a is a right end of the cross-flow fan assembly 110 in fig. 1, and the second end 110b is a left end of the cross-flow fan assembly 110 in fig. 1. The ultraviolet sterilization assembly 120 further includes a line 123 connected to the light emitting member 122, and the line 123 is disposed through the fixing shaft 121 and extends out from the second end 110b of the cross-flow fan blade assembly 110. In this embodiment, since the driving member 130 is disposed at the first end 110a of the cross-flow fan assembly 110 to provide power for the rotation of the cross-flow fan assembly 110, the circuit 123 of the light emitting member 122 is disposed inside the fixing shaft 121 and led out from the second end 110b of the cross-flow fan assembly 110, which is a reasonable wiring manner, and is beneficial to the good operation of the cross-flow fan 100 and the air conditioner 010. In this embodiment, the output shaft of the driving member 130 may be directly coaxially connected to the rotating shaft 113 on the end plate 111, or may be drivingly connected to the rotating shaft 113 through a transmission member such as a belt.

As shown in fig. 1, in an alternative embodiment, the ultraviolet sterilization assembly 120 includes a fixed shaft 121, two ends of the fixed shaft 121 are respectively rotatably connected to two ends of the cross-flow fan assembly 110, the light emitting member 122 is an ultraviolet light emitting diode (UV-LED), and a plurality of light emitting members 122 are arranged on the fixed shaft 121 along a length direction of the fixed shaft 121. A plurality of light emitting members 122 may be selectively mounted on an elongated substrate, and the substrate is fixed to the fixing shaft 121. In the present embodiment, the plurality of light emitting members 122 are uniformly disposed on the fixed shaft 121 and oriented in a uniform manner, ensuring uniform irradiation of the respective blades 114. When the light-emitting members 122 are installed in the air conditioner 010, the light-emitting members can be selectively back to the air outlet 300 of the air conditioner 010, so that the emitted ultraviolet light cannot be emitted from the air outlet 300 of the air conditioner 010, and the human body is prevented from being damaged by the ultraviolet light. The line 123 of each light emitting member 122 may be introduced into the fixed shaft 121 from the back thereof, the fixed shaft 121 having a cavity therein, and the line 123 is finally led out from the left end of the fixed shaft 121.

Instead of using uv leds as the light emitting elements 122, other types of light sources may be used. FIG. 2 is a schematic view of crossflow blower 100 in another embodiment of the present application. As shown in fig. 2, the structure of the ultraviolet sterilization assembly 120 in the cross-flow fan 100 provided in this embodiment is different from that in the embodiment of fig. 1, in this embodiment, the ultraviolet sterilization assembly 120 includes two fixing shafts 121, the light emitting member 122 is an ultraviolet fluorescent tube, and the two fixing shafts 121 are respectively connected to two ends of the ultraviolet fluorescent tube. The uv fluorescent tubes as the light emitting members 122 can uniformly emit uv light to the periphery, so that the light received by the cross-flow fan assembly 110 is more uniform in the axial direction.

Since the ultraviolet fluorescent tube can emit ultraviolet light to the periphery, in order to prevent the ultraviolet light from being emitted from the air outlet 300, in an alternative embodiment, the light emitting member 122 is provided with a light reflecting member 124 on a side facing the air outlet 300 of the air conditioner 010. By arranging the light reflecting member 124, the light emitting member 122 can be prevented from emitting ultraviolet light to the air outlet 300 of the air conditioner 010, so that the ultraviolet light is prevented from harming users; meanwhile, the light reflecting member 124 reflects the ultraviolet light towards the air outlet 300 back to the inside of the air conditioner 010, so that the intensity of the ultraviolet light towards the inside of the air conditioner 010 is higher, the ultraviolet light emitted by the light emitting member 122 is also favorably and sufficiently utilized, and the sterilization efficiency is improved. The reflector 124 may be an aluminum strip or other mirror-like member.

In an alternative embodiment, the light emitting member 122 emits ultraviolet light having a wavelength of less than 280 nm. Because the ultraviolet light with the wavelength below 280nm is short-wave ultraviolet light (UV-C), the sterilization effect is better than that of medium-wave ultraviolet light or long-wave ultraviolet light with the wavelength above 280nm, in this embodiment, the light-emitting member 122 with the light-emitting wavelength less than 280nm is selected for sterilization, so that the sterilization effect is improved.

Fig. 3 is an internal schematic view of an air conditioner 010 according to an embodiment of the present invention; FIG. 4 is a schematic view of the attachment of crossflow blower 100 to frame 400 in accordance with an embodiment of the present disclosure. As shown in fig. 3 and 4, the air conditioner 010 provided in the embodiment of the present application includes a frame 400 and the cross-flow fan 100 provided in the above embodiment of the present application, the cross-flow fan assembly 110 is rotatably connected to the frame 400, and the ultraviolet sterilization assembly 120 is fixedly connected to the frame 400. It is understood that the air conditioner 010 should include other components for performing its basic function, such as the heat exchanger 200, in addition to the frame 400 and the cross flow fan 100. The frame 400 serves as a support structure for supporting the heat exchanger 200 and the crossflow blower 100.

Referring to fig. 1 to 4, in the present embodiment, the rotating shaft 113 on the end plate 111 of the cross-flow fan assembly 110 may be rotatably connected to the frame 400 through a bearing, and the rotating shaft is sleeved outside the rotating shaft 113; and the fixed shaft 121 extending from the inside of the cross-flow fan blade assembly 110 can be directly and fixedly connected with the frame 400. The air conditioner 010 in the embodiment of fig. 3 employs the cross-flow fan 100 in the embodiment of fig. 2, the light emitting element 122 is an ultraviolet fluorescent tube, and the light reflecting element 124 is attached to a side of the light emitting element 122 facing the air outlet 300, so as to prevent ultraviolet light from being emitted from the air outlet 300 of the air conditioner 010, and the ultraviolet light is mainly projected to a side where the heat exchanger 200 is located. If the uv sterilization assembly 120 of the embodiment of fig. 1 is used, the uv led as the light emitting element 122 can also be directed to the side where the heat exchanger 200 is located, because bacteria are easily grown at the heat exchanger 200.

When the air conditioner 010 provided by the embodiment of the application is used, the sterilization function of the ultraviolet sterilization component 120 can be started when the cross-flow fan blade component 110 rotates, and ultraviolet light can be continuously irradiated when the cross-flow fan blade component 110 stops rotating.

In the embodiment of the present application, the material of the cross-flow fan blade assembly 110 may be selected from resin materials, such AS resin (styrene-acrylonitrile copolymer), ABS resin (acrylonitrile-butadiene-styrene copolymer), stainless steel, aluminum, and the like. In order to improve the strength of the cross-flow fan blade assembly 110, resin with glass fibers and carbon fibers can also be used. In the case of using a resin, its light resistance to ultraviolet light is particularly important. In addition, in the case where ultraviolet light is irradiated to the frame 400 or the case of the air conditioner 010, the irradiated portion should have sufficient light resistance, and for example, an antioxidant or an ultraviolet absorber which can improve light resistance may be added to the resin of the portion. Alternatively, a reflective material such as an aluminum tape may be attached to the light-irradiated surface inside the air conditioner 010 so that ultraviolet light does not directly irradiate these portions.

To sum up, in the cross-flow fan 100 according to the embodiment of the present application, the light-emitting member 122 of the ultraviolet sterilization assembly 120 is disposed inside the cross-flow fan blade assembly 110, and the ultraviolet sterilization assembly 120 is allowed to rotate relative to the cross-flow fan blade assembly 110, so that in the operation process of the air conditioner 010, the cross-flow fan blade assembly 110 rotates, the light-emitting member 122 may remain stationary, ultraviolet light emitted by the light-emitting member 122 may irradiate each blade 114 of the cross-flow fan blade assembly 110, and bacteria are prevented from being propagated on the surface of the blade 114; meanwhile, bacteria suspended inside the cross-flow fan blade assembly 110 can be inhibited under ultraviolet illumination. The ultraviolet sterilization assembly 120 of the cross-flow fan 100 provided by the embodiment of the application can effectively kill bacteria suspended in each blade 114 and the inner space of the cross-flow fan blade assembly 110, and sterilization dead angles are few. And the light-emitting member 122 is arranged inside the cross-flow fan blade assembly 110, so that the light-emitting member is closer to the blades 114, the ultraviolet light emitted by the cross-flow fan blade assembly 110 can be received as much as possible, and the sterilization efficiency is higher. Therefore, the cross-flow fan 100 provided by the embodiment of the application has a better sterilization effect and is not easy to breed bacteria.

The air conditioner 010 provided by the embodiment of the application comprises the cross flow fan 100, so that the air conditioner has the characteristic of good antibacterial performance.

Although the present application is disclosed above, the present application is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present disclosure, and it is intended that the scope of the present disclosure be defined by the appended claims.

Claims

1. The cross-flow fan is applied to an air conditioner and is characterized by comprising a cross-flow fan blade assembly (110) and an ultraviolet sterilization assembly (120), wherein the ultraviolet sterilization assembly (120) comprises a fixed shaft (121) and a light-emitting piece (122) connected to the fixed shaft (121), the light-emitting piece (122) is located in the cross-flow fan blade assembly (110) and used for emitting ultraviolet light, and the fixed shaft (121) is overlapped with the rotating axis of the cross-flow fan blade assembly (110) and is rotatably connected with two ends of the cross-flow fan blade assembly (110).

2. The crossflow blower of claim 1, wherein the crossflow blower (100) further comprises a driving member (130), the driving member (130) is used for driving the crossflow blade assembly (110) to rotate relative to the fixing shaft (121), the crossflow blade assembly (110) has a first end (110a) and a second end (110b), the driving member (130) is in transmission connection with the first end (110a) of the crossflow blade assembly (110), the fixing shaft (121) extends from the second end (110b) of the crossflow blade assembly (110), the ultraviolet sterilization assembly (120) further comprises a line (123) connected with the light emitting member (122), and the line (123) penetrates through the fixing shaft (121) and extends from the second end (110b) of the crossflow blade assembly (110).

3. The crossflow blower of claim 1, wherein two ends of the crossflow fan blade assembly (110) are respectively rotatably connected with the fixed shaft (121) through bearings.

4. The cross-flow fan of claim 3, wherein the cross-flow fan blade assembly (110) comprises two end plates (111) and a plurality of blades (114), the two end plates (111) are arranged at intervals in the axial direction of the cross-flow fan blade assembly (110), the blades (114) are arranged between the two end plates (111), a connecting hole is arranged on the end plate (111), and the fixing shaft (121) is arranged through the connecting hole and is rotatably connected with the end plates (111) through the bearing.

5. The crossflow blower of claim 4, characterized in that the end plate (111) comprises a plate body (112) and a rotary shaft (113) connected to the plate body (112), the connection hole being open to the rotary shaft (113).

6. The cross-flow fan of any one of claims 1 to 5, wherein the ultraviolet sterilization assembly (120) comprises one fixing shaft (121), two ends of the fixing shaft (121) are respectively and rotatably connected with two ends of the cross-flow fan blade assembly (110), the light emitting member (122) is an ultraviolet light emitting diode, and a plurality of light emitting members (122) are arranged on the fixing shaft (121) along the length direction of the fixing shaft (121).

7. The crossflow blower of any one of claims 1 to 5, wherein the ultraviolet sterilization assembly (120) comprises two fixing shafts (121), the light emitting member (122) is an ultraviolet fluorescent tube, and the two fixing shafts (121) are respectively connected to both ends of the ultraviolet fluorescent tube.

8. Cross-flow fan according to claim 7, characterised in that the side of the lighting element (122) intended to face the outlet opening (300) of the air conditioner (010) is provided with a light-reflecting element (124).

9. Crossflow blower according to one of claims 1 to 5, characterized in that the ultraviolet light emitted by the light emitter (122) has a wavelength of less than 280 nm.

10. An air conditioner, characterized by comprising a frame (400) and the cross-flow fan (100) of any one of claims 1 to 9, wherein the cross-flow fan blade assembly (110) is rotatably connected to the frame (400), and the ultraviolet sterilization assembly (120) is fixedly connected to the frame (400).