A cross-flow impeller device and an air conditioner

Abstract

This invention relates to the field of fan technology, and discloses a cross-flow impeller device and an air conditioner. The air conditioner includes an indoor unit and an air duct located within the indoor unit. The cross-flow impeller device is rotatably disposed inside the indoor unit and partially located within the air duct. The cross-flow impeller device includes multiple first blade assemblies, which are spaced apart circumferentially along the cross-flow impeller device. Each first blade assembly includes two buffer assemblies and a first blade body. The two ends of the first blade body are respectively disposed on the two buffer assemblies and can elastically move under air pressure. By setting buffer assemblies at both ends of the first blade body, this invention can compress the buffer assemblies when airflow acts on the first blade body, so that the frequency of airflow impact on each first blade body is different, thereby avoiding the superposition of rotational noise of the first blade body and helping to reduce the rotational noise of the cross-flow impeller device.

Description

Technical Field

[0001] This invention relates to the field of wind turbine technology, and in particular to a cross-flow impeller device and an air conditioner. Background Technology

[0002] With the development of society, air conditioners have become common in every household. Nowadays, people are paying more and more attention to the performance of air conditioners. In order to meet market demand, the technology of air conditioners has been updated and iterated many times.

[0003] Noise is one of the important indicators for measuring the performance of air conditioners. In existing air conditioners, the indoor unit is one of the noise-generating parts. When the indoor unit is working, the fan blades of the indoor unit rotate continuously and beat the nearby air at a certain frequency, thereby arousing regular pressure pulsation of the air around the fan blades, which generates rotational noise. If the noise is too loud when the air conditioner is in use, it will reduce the user experience and affect the overall performance of the air conditioner. Summary of the Invention

[0004] The purpose of this invention is to provide a cross-flow impeller device and an air conditioner, which aims to solve the problem of excessive noise in the indoor unit of existing air conditioners during operation.

[0005] To solve the above-mentioned technical problems, the objective of this invention is achieved through the following technical solution: providing a cross-flow impeller device for use in an air conditioner, the air conditioner including an indoor unit and an air duct located inside the indoor unit, the cross-flow impeller device being rotatably disposed inside the indoor unit and partially located in the air duct;

[0006] The cross-flow impeller device includes a plurality of first blade assemblies, which are spaced apart circumferentially along the cross-flow impeller device; each first blade assembly includes two buffer assemblies and a first blade body; the two ends of the first blade body are respectively disposed on the two buffer assemblies and can be elastically moved by air pressure.

[0007] Furthermore, the cross-flow impeller device includes two end plates, and two buffer components of each first blade assembly are detachably connected to the two end plates respectively;

[0008] The buffer assembly includes a first fixing member and a rebound member. The rebound member is compressible. One end of the rebound member is connected to the corresponding end plate, and the other end of the rebound member is connected to one end of the first fixing member. The first blade body is detachably connected to the other end of the first fixing member. When the airflow acts on the first blade body, the first fixing member can compress the rebound member in the direction of the end plate.

[0009] Furthermore, the first fixing member includes a fixing block and a positioning post, the first blade body is connected to one end of the fixing block, and one end of the positioning post is detachably installed to the other end of the fixing block; the other end of the spring-loaded member is connected to the other end of the positioning post.

[0010] Furthermore, the other end of the positioning post is provided with a groove, and the rebound member includes a first elastic member and a slider. The first elastic member is disposed in the groove, one end of the slider is slidably connected in the groove and connected to the first elastic member and can compress the first elastic member, and the other end of the slider is connected to the end plate; when the airflow acts on the first blade body, it can compress and move towards the slider through the first elastic member.

[0011] Furthermore, the other end of the positioning post is provided with a fixing plate; the spring-loaded component also includes a housing and a second elastic component; the housing is wrapped around the other end of the positioning post, the fixing plate is connected to one end of the housing, the other end of the housing is connected to an end plate, and the fixing plate and the housing are mutually limiting to restrict the movement distance of the positioning post; one end of the second elastic component is connected to the fixing plate, and the other end of the second elastic component is connected to the housing.

[0012] Furthermore, the outer casing includes a chassis and a housing. The chassis is fitted onto a positioning post. The diameter of the fixing plate is larger than the diameter of the circular hole in the chassis, so that the fixing plate is confined to the chassis. One end of the housing is snapped to the chassis, and the other end of the housing is connected to an end plate. The other end of the second elastic member is connected to the interior of the housing.

[0013] Furthermore, a sound-absorbing pad is provided at the inner bottom of the housing, and the other end of the second elastic member and the other end of the slider are both connected to the sound-absorbing pad.

[0014] Furthermore, the cross-flow impeller device also includes a plurality of second blade assemblies; the plurality of second blade assemblies are arranged at intervals along the circumference of the cross-flow impeller device; each second blade assembly includes two second fixing members and a second blade body; the two second fixing members are fixedly connected to the corresponding two end plates, and the two ends of the second blade body are respectively disposed on the two second fixing members.

[0015] Furthermore, a plurality of first blade assemblies are provided between two adjacent second blade assemblies.

[0016] This invention also provides an air conditioner, which includes the cross-flow impeller device described above.

[0017] This invention provides a cross-flow impeller device and an air conditioner, applicable to an air conditioner including an indoor unit and an air duct located within the indoor unit. The cross-flow impeller device is rotatably disposed inside the indoor unit and partially located within the air duct. The cross-flow impeller device includes multiple first blade assemblies, which are spaced apart circumferentially along the cross-flow impeller device. Each first blade assembly includes two buffer assemblies and a first blade body. The two ends of the first blade body are respectively disposed on the two buffer assemblies and can elastically move under air pressure. By providing buffer assemblies at both ends of the first blade body, this invention can compress the buffer assemblies when airflow acts on the first blade body, resulting in different airflow impact frequencies on each first blade body. This avoids the superposition of rotational noise from the first blade body and helps reduce the rotational noise of the cross-flow impeller device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the cross-flow impeller device provided in an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the buffer component provided in an embodiment of the present invention;

[0021] Figure 3 This is an exploded view of the buffer assembly provided in an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the groove structure on the other end of the positioning post provided in an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the slider provided in an embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the second fastener provided in an embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the structure of the second blade assembly provided in an embodiment of the present invention;

[0026] Figure 8 This is a schematic diagram of the connection between adjacent cross-flow impeller devices provided in an embodiment of the present invention;

[0027] Figure 9 This is a schematic diagram of the structure of the adjacent cross-flow impeller device provided in an embodiment of the present invention.

[0028] Explanation of the markings in the image:

[0029] 1. Indoor unit; 11. Air duct;

[0030] 2. Cross-flow impeller device; 21. First blade assembly; 211. Buffer assembly; 212. First blade body; 213. First fixing member; 2131. Fixing block; 2132. Positioning post; 2133. Fixing plate; 2134. Groove; 2135. Slide rail; 214. Spring member; 2141. First elastic member; 2142. Slider; 2143. Slide groove; 215. Chassis; 216. Housing; 217. Second elastic member; 218. Noise-absorbing pad; 22. Second blade assembly; 221. Second fixing member; 222. Second blade body; 223. Mounting block; 224. Fixing post; 225. Fixing plate; 226. Mounting plate; 227. Protective shell; 228. Noise-absorbing plate; 23. End plate; 24. Hub; 25. Tenon; 26. Mortise. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0033] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0034] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0035] Combination Figure 1 and Figure 2This invention provides a cross-flow impeller device for use in an air conditioner. The air conditioner includes an indoor unit 1 and an air duct 11 located inside the indoor unit 1. The cross-flow impeller device 2 is rotatably disposed inside the indoor unit 1 and partially located in the air duct 11.

[0036] The cross-flow impeller device 2 includes a plurality of first blade assemblies 21, which are arranged at circumferential intervals along the cross-flow impeller device 2. Each first blade assembly 21 includes two buffer assemblies 211 and a first blade body 212. The two ends of the first blade body 212 are respectively disposed on the two buffer assemblies 211 and can be elastically moved by air pressure.

[0037] In this embodiment, when the cross-flow impeller device 2 rotates, the airflow enters the interior of the cross-flow impeller device 2 from the outside of the air duct 11 along the diameter direction of the cross-flow impeller device 2, and forms a vortex at the center of the cross-flow impeller device 2. Due to the small airflow and slow flow velocity in the narrow space inside the air duct 11, the vortex at the center of the cross-flow impeller device 2 is deflected towards the air duct 11. The closer to the center of the vortex, the faster the airflow velocity. Therefore, the vortex deflected towards the air duct 11 drives the airflow next to it and flows out of the air duct 11 into the room. This forms the cross-flow impeller device 2 outside the air duct 11 that can take in air, and the cross-flow impeller device 2 inside the air duct 11 that can let the airflow out of the room through the air duct 11.

[0038] More specifically, when the first blade assembly 21 of this embodiment rotates outside the air duct 11, due to the large airflow and high velocity outside the air duct 11, the airflow outside the air duct 11 exerts greater resistance on the first blade body 212. This resistance continuously compresses the buffer components 211 at both ends of the first blade body 212, thereby creating a frequency at which the airflow strikes the first blade body 212. As the first blade body 212 enters the air duct 11, the resistance between the airflow and the first blade body 212 decreases, causing the two buffer components 211 on the first blade body 212 to reset, thus reducing the frequency at which the airflow strikes the first blade body 212. This arrangement ensures that the frequency at which the airflow outside the air duct 11 strikes the first blade body 212 differs from the frequency at which the airflow inside the air duct 11 strikes the first blade body 212, thereby avoiding the superposition of rotational noise, reducing the noise of the cross-flow impeller device 2 during rotation, and improving the user experience.

[0039] It should be noted that, due to the buffer component 211 set in the first blade body 212, the frequency of the airflow hitting each first blade body 212 is different. The frequency of the airflow hitting the first blade body 212 outside the air duct 11 is more similar, and the frequency of the airflow hitting the first blade body 212 inside the air duct 11 is also more similar.

[0040] Please see Figures 1 to 3 As shown, in one embodiment, the cross-flow impeller device 2 includes two end plates 23, and the two buffer components 211 of each first blade assembly 21 are detachably connected to the two end plates 23 respectively.

[0041] The buffer assembly 211 includes a first fixing member 213 and a spring member 214. The spring member 214 is compressible. One end of the spring member 214 is connected to the corresponding end plate 23, and the other end of the spring member 214 is connected to one end of the first fixing member 213. The first blade body 212 is detachably connected to the other end of the first fixing member 213. When the airflow acts on the first blade body 212, the first fixing member 213 can compress the spring member 214 in the direction of the end plate 23.

[0042] In this embodiment, the first blade body 212 is detachably connected to the first fixing member 213. When the first blade body 212 is damaged, the first fixing member 213 and the first blade body 212 can be separated by disassembly, so that the first blade body 212 can be removed from the buffer assembly 211. Then the first blade body 212 can be repaired or replaced with a new first blade body 212. Compared with the fixed first blade body 212 in the prior art, this embodiment improves the convenience of disassembling and repairing the first blade body 212.

[0043] The end plate 23 has a hub 24 at its center, and a rotating shaft can be inserted through the center of the hub 24. The rotating shaft is connected to the output shaft of the motor. When the motor rotates, it drives the rotating shaft to rotate, and the rotating shaft drives the hub 24 to rotate, so that the hub 24 drives the end plate 23 to rotate, and the first blade assembly 21 located on the end plate 23 can rotate.

[0044] It should be noted that multiple cross-flow impeller devices 2 of the present invention can be provided; please refer to [link / reference]. Figure 8 and Figure 9 As shown, adjacent cross-flow impeller devices 2 are connected together along the length direction, thereby increasing the overall length of the cross-flow impeller device 2. Specifically, adjacent cross-flow impeller devices 2 are connected by setting a tenon 25 on the end plate 23 of one cross-flow impeller device 2 and a mortise 26 on the end plate 23 of the other cross-flow impeller device 2. The tenon 25 and the mortise 26 cooperate with each other, thereby completing the connection of adjacent cross-flow impeller devices 2. This arrangement improves the convenience of installing and disassembling multiple cross-flow impeller devices 2. The number of cross-flow impeller devices 2 can be set as needed and is not limited here.

[0045] In this embodiment, when the spring-loaded component 214 is compressed, since the airflow velocity is not constant, the spring-loaded component 214 will be compressed and then reset, and then compressed again by the fast-flowing airflow. This cycle repeats. When the first blade body 212 rotates, the airflow acts on the first blade body 212 to generate a frequent slapping frequency, thereby buffering the first blade body 212 and greatly reducing the noise of the first blade body 212 slapping the air.

[0046] In one embodiment, the first fixing member 213 includes a fixing block 2131 and a positioning post 2132. The first blade body 212 is connected to one end of the fixing block 2131, and one end of the positioning post 2132 is detachably installed on the other end of the fixing block 2131. The other end of the spring member 214 is connected to the other end of the positioning post 2132.

[0047] In this embodiment, the positioning post 2132 and the fixing block 2131 can be connected by snap-fit, screw, or thread. In this embodiment, a threaded connection is preferred to enhance the stability of the connection between the positioning post 2132 and the fixing block 2131, and to improve the convenience of disassembling and separating the positioning post 2132 and the fixing block 2131.

[0048] In this embodiment, when the first blade body 212 is affected by air pressure, since the first blade body 212 is connected to the fixing block 2131, the fixing block 2131 is connected to the positioning post 2132, the positioning post 2132 is connected to the spring member 214, and the spring member 214 is connected to the end plate 23, the airflow acting on the first blade body 212 can compress the spring member 214 together with the first blade body 212, the fixing block 2131 and the positioning post 2132, so that the spring member 214 is compressed towards the end plate, and finally the airflow resistance experienced by the first blade body 212 can be buffered.

[0049] In one embodiment, a groove 2134 is formed on the port surface of the other end of the positioning post 2132. The spring member 214 includes a first elastic member 2141 and a slider 2142. The first elastic member 2141 is disposed in the groove 2134. One end of the slider 2142 is slidably connected to the groove 2134 and connected to the first elastic member 2141 and can compress the first elastic member 2141. The other end of the slider 2142 is connected to the end plate 23. When the airflow acts on the first blade body 212, it can compress and move towards the slider 2142 through the first elastic member 2141.

[0050] In this embodiment, by setting the groove 2134 and the slider 2142, when the airflow acts on the first blade body 212, the airflow resistance can push the positioning post 2132 to compress the first elastic member 2141 towards the slider 2142. Since the slider 2142 is slidably connected in the groove 2134, the slider 2142 will slide a distance towards the end plate 23. With this setting, the entire first blade body 212 can be buffered, reducing the resistance of the airflow acting on the first blade body 212, which helps to avoid damage to the first blade body 212 and improve the service life of the first blade body 212.

[0051] The slider 2142 and the outlet of the groove 2134 can be provided with a snap-fit ​​limiting structure so that when the slider 2142 slides in the groove 2134, it is prevented from falling out of the groove 2134.

[0052] Please refer to Figure 4 and Figure 5 As shown, slide rails 2135 can be provided on both sides of the groove 2134, and slide grooves 2143 are opened on both sides of the slider 2142. The slider 2142 and the groove 2134 can be slidably installed by the cooperation of the slide grooves 2143 and the slide rails 2135.

[0053] More specifically, the first elastic element 2141 can be a spring. By providing the first elastic element 2141, a certain rebound force can be provided when the positioning post 2132 compresses the first elastic element 2141. When the buffer assembly 211 passes through the air duct 11, due to the high air velocity and low flow rate inside the air duct 11, the airflow resistance experienced by the compressed first elastic element 2141 decreases, allowing it to recover using the rebound force. When the buffer assembly 211 leaves the air duct 11, due to the high air velocity and large flow rate outside the air duct 11, the airflow resistance experienced by the first elastic element 2141 increases, causing it to be compressed again. This arrangement ensures that each buffer assembly 211 is compressed to a different degree, resulting in different frequencies of airflow striking the first blade body 212. This prevents the noise from the airflow striking each first blade body 212 from amplifying, thus reducing the rotational noise of the entire cross-flow impeller device 2.

[0054] In one embodiment, the other end of the positioning post 2132 is provided with a fixing plate 2133; the spring member 214 also includes a housing and a second elastic member 217; the housing is wrapped around the other end of the positioning post 2132, the fixing plate 2133 is connected to one end of the housing, the other end of the housing is connected to the end plate 23, and the fixing plate 2133 and the housing are mutually limiting to restrict the movement distance of the positioning post 2132; one end of the second elastic member 217 is connected to the fixing plate 2133, and the other end of the second elastic member 217 is connected to the housing.

[0055] In this embodiment, the second elastic element 217 can specifically be a spring. The inner diameter of the second elastic element 217 is larger than the inner diameter of the first elastic element 2141, so that the second elastic element 217 is disposed on the outer periphery of the first elastic element 2141. When the airflow acts on the first blade body 212 to compress the first elastic element 2141, it can also compress the second elastic element 217, thereby improving the buffering effect of the buffer assembly 211 and making it suitable for occasions with greater airflow resistance.

[0056] In this embodiment, when the first elastic element 2141 and the second elastic element 217 are compressed by airflow resistance, the elastic forces of the first elastic element 2141 and the second elastic element 217 act entirely on the positioning post 2132. A housing is provided around the second elastic element 217, and the first elastic element 2141 is connected to the housing via a slider 2142. The housing is directly connected to the second elastic element 217, while the fixing plate 2133 is located at one end of the housing. The other end of the housing is connected to the end plate 23. When airflow resistance pushes the positioning post 2132 to compress the first elastic element 2141, the first elastic element 2141 compresses towards the slider 2142 and pushes the slider 2132. 142 slides in the groove 2134 toward the end plate 23, thereby buffering the first elastic element 2141 against the first blade body 212. When the airflow resistance pushes the fixing plate 2133 of the positioning post 2132 to compress the second elastic element 217, the second elastic element 217 is compressed toward the direction where the outer shell is connected to the end plate 23, thereby buffering the first blade body 212 against the second elastic element 217. In this embodiment, by buffering the first blade body 212 against the first elastic element 2141 and the second elastic element 217, the buffering effect of the first blade body 212 can be further improved, and the noise when the first blade body 212 rotates can be reduced.

[0057] In this embodiment, when the buffer assembly 211 enters the air duct 11 and resets, the first elastic element 2141 and the second elastic element 217 reset by relying on the rebound force. Since the rebound force of the first elastic element 2141 and the second elastic element 217 will drive the positioning post 2132 to reset, by limiting the distance of the positioning post 2132 to reset by the fixed plate 2133 and the outer shell, the problem of instability caused by excessive sliding reset of the positioning post 2132 is avoided, which is conducive to improving the buffering stability of the buffer assembly 211.

[0058] In one embodiment, the outer casing includes a chassis 215 and a housing 216. The chassis 215 is sleeved on the positioning post 2132. The diameter of the fixing plate 2133 is larger than the diameter of the circular hole in the chassis 215, so that the fixing plate 2133 is limited to the chassis 215. One end of the housing 216 is snapped to the chassis 215, and the other end of the housing is connected to the end plate 23. The other end of the second elastic member 217 is connected to the interior of the other end of the housing 216.

[0059] In this embodiment, when the first blade body 212 is compressed by the airflow resistance compression buffer assembly 211, the airflow resistance acts on the housing 216, and the first elastic element 2141 and the second elastic element 217 located in the housing 216 are compressed, thereby causing the first elastic element 2141 and the second elastic element 217 to compress and move in the direction of the housing 216 connected to the end plate 23. Since the chassis 215 is sleeved on the positioning post 2132 and connected to the housing 216, when the first elastic element 2141 and the second elastic element 217 drive the positioning post 2132 to reset, the fixing plate 2133 of the positioning post 2132 will be limited on the chassis 215, thereby avoiding the problem of excessive movement of the positioning post 2132, so as to achieve a more stable buffering function of the buffer assembly 211.

[0060] More specifically, the chassis 215 has an opening through which the positioning post 2132 passes. The chassis 215 is fitted onto the positioning post 2132 through the opening. The diameter of the fixed plate 2133 is larger than the diameter of the opening. When the positioning post 2132 moves to its reset position, the positioning post 2132 can be limited by the chassis 215, the fixed plate 2133 and the housing 216 together, thereby limiting the problem of the positioning post 2132 resetting too far and thus avoiding damage to the internal structure of the cross-flow impeller device 2.

[0061] In this embodiment, the housing 216 and the chassis 215 are connected by a snap fastener. Specifically, a snap fastener can be provided on the chassis 215, and a slot can be provided at the front end of the housing 216. The chassis 215 and the housing 216 can be detachably connected by the mutual cooperation of the snap fastener and the slot. This connection method can facilitate the installation and removal of the chassis 215 and the housing 216, while also ensuring the overall stability and durability of the housing.

[0062] In one embodiment, a sound-absorbing pad 218 is provided at the inner bottom of the housing 216, and the other end of the second elastic member 217 and the other end of the slider 2142 are both connected to the sound-absorbing pad 218.

[0063] In this embodiment, the noise-absorbing pad 218 is used to absorb noise. The other end of the second elastic member 217 and the other end of the slider 2142 are connected to the noise-absorbing pad 218. When the second elastic member 217 is compressed and the slider 2142 slides toward the noise-absorbing pad 218, the noise-absorbing pad 218 can reduce the frictional sound between the second elastic member 217 and the slider 2142 and the housing 216, and further reduce the noise when the cross-flow impeller device 2 rotates.

[0064] Please see Figure 6 and Figure 7As shown, in one embodiment, the cross-flow impeller device 2 further includes a plurality of second blade assemblies 22; the plurality of second blade assemblies 22 are arranged at intervals along the circumference of the cross-flow impeller device 2; each second blade assembly 22 includes two second fixing members 221 and a second blade body 222; the two second fixing members 221 are fixedly connected to the corresponding two end plates 23, and the two ends of the second blade body 222 are respectively disposed on the two second fixing members 221.

[0065] In this embodiment, when airflow resistance acts on the second blade assembly 22, the second fixing member 221 cannot buffer the second blade body 222. Therefore, the frequency at which the second blade body 222 of the second blade assembly 22 and the first blade body 212 of the first blade assembly 21 beat the air is inconsistent. As a result, the noise frequency generated by the cross-flow impeller device 2 cannot coincide with the natural frequencies of the two first blade bodies 212 and the second blade body 222. Therefore, the rotational noise will not be superimposed, and the generation of abnormal noise is avoided.

[0066] Please refer to Figure 6 As shown, the second fixing component 221 includes a mounting block 223, a fixing post 224, a fixing plate 225, a mounting plate 226, a sound-absorbing plate 228, and a protective shell 227. Both ends of the second blade body 222 are respectively connected to the corresponding mounting blocks 223. One end of the fixing post 224 is threaded to the mounting block 223. The sound-absorbing plate 228 is located at the bottom of the protective shell 227, and the other end of the fixing post 224 is connected to the sound-absorbing plate 228. When airflow acts on the second blade assembly 22, the sound-absorbing pad... 218 can reduce the friction noise between the other end of the fixing post 224 and the protective shell 227. The fixing plate 225 is set on the outside of the fixing post 224. The mounting plate 226 is sleeved on the fixing post 224 and limits the fixing plate 225. The top of the protective shell 227 is snapped to the mounting plate 226 to protect the internal structure of the second fixing member 221 and prevent it from being exposed. The bottom of the protective shell 227 is connected to the end plate 23. With this arrangement, the second blade body 222 is fixedly connected to the end plate 23.

[0067] In one embodiment, a plurality of first blade assemblies 21 are provided between two adjacent second blade assemblies 22.

[0068] In this embodiment, the arrangement of multiple first blade assemblies 21 and multiple second blade assemblies 22 allows the first blade body 212 and the second blade body 222 to evenly beat the air when the cross-flow impeller device 2 rotates, thereby making the airflow more stable and reducing noise.

[0069] Specifically, a plurality of first blade assemblies 21 and a plurality of second blade assemblies 22 are arranged at intervals in the circumferential direction of the cross-flow impeller device 2. During the rotation of the cross-flow impeller device 2, each first blade body 212 and second blade body 222 will strike the air for a period of time and then leave the area where the air is struck. Since the plurality of first blade assemblies 21 and the plurality of second blade assemblies 22 are arranged at intervals in the circumferential direction, the striking time intervals of each first blade body 212 and second blade body 222 will also be different. This setting method can make the striking degrees and frequencies of each first blade body 212 and second blade body 222 different, thus avoiding the superposition of noises.

[0070] In addition, the plurality of second blade assemblies 22 are arranged at equal circumferential intervals along the cross-flow impeller device 2 assembly. This setting method can make each second blade assembly 22 have the same frequency and amplitude when striking the air, so that the air flow is more stable. At the same time, this setting method can also make each second blade assembly 22 have the same movement trajectory during rotation, thus improving the stability of the cross-flow impeller device 2.

[0071] More specifically, in this embodiment, the number of the second blade assemblies 22 is set to three, and the three second blade assemblies 22 are evenly distributed on the end plate 23. Please refer to Figure 7 As shown, the overall shape is like a Chinese character "pin". By setting like this, when the cross-flow impeller device 2 rotates, different striking frequencies can be generated between each first blade body 212 and second blade body 222.

[0072] The embodiment of the present invention also provides an air conditioner, which includes the cross-flow impeller device 2 as described above.

[0073] As mentioned above, the above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various equivalent modifications or replacements, and these modifications or replacements should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A cross-flow impeller device applied to an air conditioner, characterized in that: The air conditioner includes an indoor unit and an air duct located inside the indoor unit, and the cross-flow impeller device is rotatably disposed inside the indoor unit and partially located in the air duct; The cross-flow impeller device includes a plurality of first blade assemblies, which are spaced apart circumferentially along the cross-flow impeller device; each first blade assembly includes two buffer assemblies and a first blade body; the two ends of the first blade body are respectively disposed on the two buffer assemblies and can be elastically moved by air pressure. The cross-flow impeller device includes two end plates, and two buffer components of each first blade assembly are detachably connected to the two end plates respectively; the buffer component includes a first fixing member and a spring member, the spring member is compressible, one end of the spring member is connected to the corresponding end plate, the other end of the spring member is connected to one end of the first fixing member, and the first blade body is detachably connected to the other end of the first fixing member. When the airflow acts on the first blade body, the first fixing member can compress the spring member in the direction of the end plate.

2. The cross-flow impeller device of claim 1, wherein: The first fixing member includes a fixing block and a positioning post. The first blade body is connected to one end of the fixing block, and one end of the positioning post is detachably installed to the other end of the fixing block. The other end of the spring-loaded member is connected to the other end of the positioning post.

3. The crossflow impeller device of claim 2, wherein: The other end of the positioning post is provided with a groove. The rebound member includes a first elastic member and a slider. The first elastic member is disposed in the groove. One end of the slider is slidably connected to the groove and connected to the first elastic member and can compress the first elastic member. The other end of the slider is connected to the end plate. When the airflow acts on the first blade body, it can compress and move towards the slider through the first elastic member.

4. The crossflow impeller device of claim 3, wherein: The other end of the positioning post is provided with a fixing plate; the spring-loaded component also includes a housing and a second elastic component; the housing is wrapped around the other end of the positioning post, the fixing plate is connected to one end of the housing, the other end of the housing is connected to an end plate, and the fixing plate and the housing are matched to limit the movement distance of the positioning post; one end of the second elastic component is connected to the fixing plate, and the other end of the second elastic component is connected to the housing.

5. The crossflow impeller device of claim 4, wherein: The outer casing includes a chassis and a housing. The chassis is fitted onto a positioning post. The diameter of the fixing plate is larger than the diameter of the circular hole in the chassis, so that the fixing plate is confined to the chassis. One end of the housing is snapped to the chassis, and the other end of the housing is connected to an end plate. The other end of the second elastic member is connected to the interior of the housing.

6. The crossflow impeller device of claim 5, wherein: A sound-absorbing pad is provided at the inner bottom of the housing, and the other end of the second elastic member and the other end of the slider are both connected to the sound-absorbing pad.

7. The crossflow impeller device of claim 1, wherein: The cross-flow impeller device further includes a plurality of second blade assemblies; the plurality of second blade assemblies are arranged at intervals along the circumference of the cross-flow impeller device; each second blade assembly includes two second fixing members and a second blade body; the two second fixing members are fixedly connected to the corresponding two end plates, and the two ends of the second blade body are respectively disposed on the two second fixing members.

8. The crossflow impeller device of claim 7, wherein: Multiple first blade assemblies are provided between two adjacent second blade assemblies.

9. An air conditioner characterized by comprising: Includes the cross-flow impeller device as described in any one of claims 1 to 8 above.

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