Cross-flow air supply assembly and air conditioner

Abstract

The utility model discloses a cross-flow air supply assembly and an air conditioner with the cross-flow air supply assembly, and relates to the technical field of air conditioners, and the cross-flow air supply assembly comprises a cross-flow wind wheel, a supporting piece and a fixing piece. And one end of the cross-flow wind wheel is a supporting end. The supporting piece comprises an outer ring and a connecting shaft, the outer ring is used for abutting against the shell, the axis of the connecting shaft coincides with the axis of the cross-flow wind wheel, one end of the connecting shaft can be rotationally connected to the inner wall of the outer ring so that the connecting shaft can only rotate in the axial direction of the connecting shaft, and the other end of the connecting shaft can be detachably connected to the supporting end. The cross-flow wind wheel can rotate around the axial direction of the cross-flow wind wheel through the connecting shaft. The fixing piece is detachably connected to the shell and used for fixing the outer ring to the shell so as to limit the connecting shaft and the cross-flow wind wheel from moving in the axial direction and the radial direction of the connecting shaft and the cross-flow wind wheel. According to the cross-flow air supply assembly, it can be guaranteed that the supporting end of the cross-flow wind wheel is convenient to disassemble and assemble, and meanwhile the cross-flow wind wheel is prevented from shaking in the axial direction in the rotating process.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner technology, and in particular to a cross-flow air supply component and an air conditioner. Background Technology

[0002] Cross-flow air supply units are common air supply components in the air conditioning industry, typically installed in the indoor unit's casing. A cross-flow air supply unit mainly consists of a cross-flow impeller and a motor. The cross-flow impeller has a support end and a connecting end. The support structure on the casing supports the cross-flow impeller through the support end, and the motor's output end connects to the connecting end, enabling the motor to drive the cross-flow impeller to rotate. In existing technology, to facilitate the assembly and disassembly of the cross-flow impeller's support end, it is often mounted on the casing with a clearance fit to a bearing. This installation method easily causes the cross-flow impeller to wobble axially during rotation, which can lead to abnormal noise from the rotating impeller. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a cross-flow air supply assembly that can ensure that the support end of the cross-flow fan wheel is easy to disassemble and assemble, while avoiding axial swaying of the cross-flow fan wheel during rotation, thereby preventing abnormal noise from the rotating cross-flow fan wheel.

[0004] This utility model also proposes an air conditioner having the above-mentioned cross-flow air supply component.

[0005] According to a first aspect of the present invention, a cross-flow air supply assembly includes a cross-flow impeller, a support member, and a fixing member. One end of the cross-flow impeller is a support end; the support member includes an outer ring and a connecting shaft, the outer ring is used to abut against a housing, the axis of the connecting shaft coincides with the axis of the cross-flow impeller, a first end of the connecting shaft is rotatably connected to the inner wall of the outer ring so that the connecting shaft can only rotate about its own axis, and a second end of the connecting shaft is detachably connected to the support end so that the cross-flow impeller can rotate about its own axis through the connecting shaft; the fixing member is detachably connected to the housing, and the fixing member is used to fix the outer ring to the housing to restrict the movement of the connecting shaft and the cross-flow impeller along their own axial and radial directions.

[0006] It has at least the following beneficial effects:

[0007] The outer ring abuts against the housing. The first end of the connecting shaft is rotatably connected to the inner edge of the outer ring, while the second end is detachably connected to the support end of the cross-flow fan. This allows the cross-flow fan to be rotatably connected to the outer ring via the connecting shaft. A fixing component secures the outer ring to the housing. During the rotation of the cross-flow fan, and under the fixing component's control, the outer ring will not move axially or radially, thus restricting the axial and radial movement of the connecting shaft and the cross-flow fan. This prevents axial wobbling during rotation and avoids abnormal noise. To disassemble the support end of the cross-flow fan, first remove the fixing component from the housing, then detach the second end of the connecting shaft from the support end of the cross-flow fan. When installing the support end of the cross-flow fan wheel, first install the second end of the connecting shaft onto the support end of the cross-flow fan wheel. Then, install the fastener onto the housing so that the fastener can fix the outer ring onto the housing. This completes the installation of the cross-flow fan wheel support end, facilitating its assembly and disassembly. This cross-flow air supply assembly ensures that the support end of the cross-flow fan wheel is easy to assemble and disassemble while effectively preventing axial wobbling of the cross-flow fan wheel during rotation. This, in turn, prevents abnormal noise from the rotating cross-flow fan wheel and improves the user experience.

[0008] According to a first aspect embodiment of the present invention, a cross-flow air supply assembly is provided with a mounting hole on the support end, the axis of the mounting hole coincides with the axis of the cross-flow impeller, the inner wall of the mounting hole has an internal thread section, and the second end of the connecting shaft has an external thread section. The external thread section is threadedly engaged with the internal thread section so that the threads of the internal thread section can always abut against the threads of the external thread section, and restrict the cross-flow impeller from moving along its own axial direction.

[0009] According to the first aspect of the present invention, the cross-flow air supply assembly further includes a plurality of balls, a first annular track groove is formed on the outer wall of the first end of the connecting shaft, a second annular track groove is formed on the inner wall of the outer ring, and the plurality of balls are disposed between the first annular track groove and the second annular track groove, so that the first end of the connecting shaft can be rotatably connected to the inner wall of the outer ring through the plurality of balls.

[0010] According to the first aspect of the present invention, the cross-flow air supply assembly further includes a retainer for maintaining a gap between any two adjacent balls.

[0011] According to the first aspect of the present invention, the cross-flow air supply assembly further includes two sealing caps, which are respectively disposed on both sides of the outer ring, and both sealing caps are used to seal the gap between the first end of the connecting shaft and the outer ring.

[0012] According to a first aspect embodiment of the present invention, the diameter of the first end of the connecting shaft is larger than the diameter of the second end of the connecting shaft. A first mounting groove is formed on the fixing member. The first mounting groove is used for the outer ring and the first end of the connecting shaft to extend into. The inner bottom wall of the first mounting groove can abut against the outer ring so that the inner bottom wall of the first mounting groove can press and fix the outer ring on the housing. The inner side wall of the first mounting groove can abut against both sides of the outer ring and the first end of the connecting shaft so that the inner side wall of the first mounting groove can restrict the outer ring and the connecting shaft from moving axially.

[0013] According to the cross-flow air supply assembly of the first aspect of the present invention, a plurality of supporting ribs are evenly distributed on the inner bottom wall of the first mounting groove, and the inner bottom wall of the first mounting groove abuts against the outer ring through the plurality of supporting ribs.

[0014] According to a first aspect of the present invention, the cross-flow air supply assembly further includes a fastener, wherein a through hole is formed on the fastener, the fastener passes through the through hole and is threadedly connected to the housing, so that the fastener can be detachably connected to the housing by means of the fastener.

[0015] According to a first aspect of the present invention, the cross-flow air supply assembly further includes a rotary drive member, the other end of the cross-flow impeller is a connecting end, the output end of the rotary drive member is connected to the connecting end, and the rotary drive member is used to drive the cross-flow impeller to rotate around its own axis.

[0016] An air conditioner according to a second aspect of the present invention includes a cross-flow air supply assembly according to the first aspect of the present invention described above.

[0017] It has at least the following beneficial effects: This air conditioner has all the beneficial effects brought about by the above-mentioned cross-flow air supply component, which will not be repeated here.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0020] Figure 1This is a schematic diagram of the cross-flow air supply component and housing according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the cross-flow impeller, support, and fixing components in the airflow assembly of this utility model embodiment;

[0022] Figure 3 This is an exploded structural diagram of the support member in the airflow assembly of this utility model embodiment;

[0023] Figure 4 This is a partial cross-sectional schematic diagram of the cross-flow air supply component and the housing according to an embodiment of the present utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the fixing component in the airflow assembly of this utility model embodiment;

[0025] Figure 6 This is a schematic diagram of the rotating drive component and the cross-flow impeller in the airflow assembly of this utility model embodiment;

[0026] Icon labels:

[0027] Cross-flow impeller 100; mounting hole 110; internal thread section 120;

[0028] Support component 200; outer ring 210; second annular track groove 211; connecting shaft 220; first annular track groove 221; external thread section 230; ball bearing 240; cage 250; sealing cap 260;

[0029] Fastener 300; First mounting groove 310; Support rib 311; Through hole 320; Clearance hole 330;

[0030] Rotary drive component 400;

[0031] Housing 50; Second mounting slot 51. Detailed Implementation

[0032] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0034] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0035] Reference Figures 1 to 4 This utility model discloses a cross-flow air supply component, including a cross-flow impeller 100, a support member 200 and a fixing member 300.

[0036] One end of the cross-flow impeller 100 is a support end. The support member 200 includes an outer ring 210 and a connecting shaft 220. The outer ring 210 abuts against the housing 50. The axis of the connecting shaft 220 coincides with the axis of the cross-flow impeller 100. The connecting shaft 220 has a first end and a second end. The first end of the connecting shaft 220 is rotatably connected to the inner wall of the outer ring 210 so that the connecting shaft 220 can only rotate about its own axis. The second end of the connecting shaft 220 is detachably connected to the support end so that the cross-flow impeller 100 can rotate about its own axis via the connecting shaft 220. The fixing member 300 is detachably connected to the housing 50. The fixing member 300 is used to fix the outer ring 210 to the housing 50 to restrict the axial and radial movement of the connecting shaft 220 and the cross-flow impeller 100.

[0037] It should be explained that in the existing technology, the cross-flow fan 100 needs to be cleaned after a period of use, therefore, the cross-flow fan 100 needs to be disassembled and reassembled periodically. The cross-flow air supply assembly typically also includes bearings and bearing housings. The bearing housing has a mating hole, and the outer ring 210 of the bearing is interference-fitted with the wall of the mating hole. The support end of the cross-flow fan 100 is provided with a fan shaft, and the outer wall of the fan shaft has a shoulder. The installation process of the support end of the cross-flow fan 100 is roughly as follows: First, the inner ring of the bearing is fitted onto the fan shaft on the support end of the cross-flow fan 100, so that the inner ring of the bearing is clearance-fitted with the fan shaft, and the inner ring of the bearing abuts against the shoulder on the fan shaft. Finally, the bearing housing is tightened and fixed to the housing 50 with bolts to complete the installation of the support end of the cross-flow fan 100. The disassembly process of the cross-flow wind turbine 100 support end is roughly as follows: First, loosen the bearing housing from the housing 50, and then pull the inner ring of the bearing from the blade shaft to complete the disassembly of the cross-flow wind turbine 100 support end. It can be seen that, to facilitate the installation of the cross-flow wind turbine 100 support end, the blade shaft on the support end of the cross-flow wind turbine 100 is usually clearance-fitted with the inner ring of the bearing. Although the inner ring of the bearing abuts against the shoulder on the blade shaft to provide a certain axial limiting effect, the shoulder on the blade shaft can only provide limiting in one direction. Therefore, this installation method easily causes the cross-flow wind turbine 100 to wobble axially during rotation, which in turn leads to abnormal noise during the rotation of the cross-flow wind turbine 100.

[0038] In this embodiment of the invention, the support member 200 includes an outer ring 210 and a connecting shaft 220. After the second end of the connecting shaft 220 is mounted on the support end of the cross-flow impeller 100, the axes of the outer ring 210, the connecting shaft 220, and the cross-flow impeller 100 all coincide. The outer ring 210 abuts against the housing 50, thus providing support for the connecting shaft 220 and the cross-flow impeller 100, ensuring that the connecting shaft 220 and the cross-flow impeller 100 can rotate around their own axial direction within the housing 50. The fixing member 300 is detachably connected to the housing 50. The fixing member 300 abuts against the outer ring 210, thus fixing the outer ring 210 to the housing 50 under the action of the fixing member 300, thereby restricting the outer ring 210 from moving along its own axial and radial directions, and consequently restricting the connecting shaft 220 and the cross-flow impeller 100 from moving along their own axial and radial directions. It should be explained that the first end of the connecting shaft 220 is the end away from the cross-flow fan 100, and the second end of the connecting shaft 220 is the end close to the cross-flow fan 100. In this embodiment of the present invention, the rotation of the cross-flow fan 100 refers to the rotation of the cross-flow fan 100 around its own axis, and the rotation of the connecting shaft 220 refers to the rotation of the connecting shaft 220 around its own axis.

[0039] Understandably, the outer ring 210 abuts against the housing 50, and the first end of the connecting shaft 220 is rotatably connected to the inner side of the outer ring 210, while the second end of the connecting shaft 220 is detachably connected to the support end of the cross-flow fan 100. This allows the cross-flow fan 100 to be rotatably connected to the outer ring 210 via the connecting shaft 220. The fixing member 300 serves to fix the outer ring 210, securing it to the housing 50. During the rotation of the cross-flow fan 100 around its own axis, and under the fixing effect of the fixing member 300, the outer ring 210 will not move along its own axial and radial directions. This restricts the movement of the connecting shaft 220 and the cross-flow fan 100 along their own axial and radial directions, preventing the cross-flow fan 100 from wobbling axially during rotation and thus avoiding abnormal noise during rotation. When the support end of the cross-flow fan 100 needs to be disassembled, first remove the fixing piece 300 from the housing 50, and then remove the second end of the connecting shaft 220 from the support end of the cross-flow fan 100. This completes the disassembly of the support end of the cross-flow fan 100. When the support end of the cross-flow fan 100 needs to be installed, first install the second end of the connecting shaft 220 onto the support end of the cross-flow fan 100, and then install the fixing piece 300 onto the housing 50, so that the fixing piece 300 can fix the outer ring 210 onto the housing 50. This completes the installation of the support end of the cross-flow fan 100, facilitating the disassembly and assembly of the support end of the cross-flow fan 100. This cross-flow air supply assembly ensures that the support end of the cross-flow fan 100 is easy to disassemble and assemble, while effectively preventing axial wobbling of the cross-flow fan 100 during rotation, thereby preventing abnormal noise from the rotating cross-flow fan 100 and improving the user experience.

[0040] refer to Figure 2 and Figure 4 The supporting end of the connecting shaft 220 has a mounting hole 110, the axis of which coincides with the axis of the cross-flow impeller 100. The inner wall of the mounting hole 110 has an internal thread section 120, and the second end of the connecting shaft 220 has an external thread section 230, which is threadedly engaged with the internal thread section 120. The outer ring 210 is fixed to the housing 50 by the fixing member 300, and the first end of the connecting shaft 220 is rotatably connected to the inner wall of the outer ring 210, meaning that the connecting shaft 220 cannot move axially or radially at this time, but can only rotate along its own axis. The supporting end of the cross-flow impeller 100 has a mounting hole 110, which is coaxially arranged with the cross-flow impeller 100, and the inner wall of the mounting hole 110 has an internal thread section 120. The outer wall of the second end of the connecting shaft 220 has an external thread section 230, which is threadedly engaged with the internal thread section 120.

[0041] It is understandable that the external threaded section 230 on the second end of the connecting shaft 220 is threadedly connected to the internal threaded section 120 on the support end of the cross-flow wind turbine 100, and the connecting shaft 220 cannot move along its own axial direction. Therefore, during the rotation of the cross-flow wind turbine 100 around its own axial direction, the internal threaded section 120 has a tendency to displace relative to the external threaded section 230, and the direction of this displacement tendency is parallel to the axial direction of the cross-flow wind turbine 100. (Reference) Figure 4 Assuming the rotation direction of the cross-flow fan 100 is the same as the tightening direction of the internal thread section 120 and the external thread section 230, during the rotation of the cross-flow fan 100 around its own axis, the internal thread section 120 always tends to move closer to the first end of the connecting shaft 220, ensuring that the threads of the internal thread section 120 and the threads of the external thread section 230 always remain in contact. This prevents the cross-flow fan 100 from displacing axially, thus avoiding axial wobbling during rotation and preventing abnormal noise from the rotating cross-flow fan 100. Similarly, during the rotation of the cross-flow fan 100 around its own axis, the connecting shaft 220 can always apply a pulling force to the cross-flow fan 100. The direction of this pulling force is parallel to the axial direction of the cross-flow fan 100, ensuring that the rotating cross-flow fan 100 does not wobble axially under continuous pulling force. After the threads of the internal thread section 120 abut against the threads of the external thread section 230, the internal thread section 120 can drive the external thread section 230 to rotate together, that is, the cross-flow fan wheel 100 can drive the connecting shaft 220 to rotate around its own axis.

[0042] refer to Figure 4Assuming the rotation direction of the cross-flow fan 100 is opposite to the tightening direction of the internal thread section 120 and the external thread section 230, during the rotation of the cross-flow fan 100 around its own axis, the internal thread section 120 always tends to move away from the first end of the connecting shaft 220, ensuring that the threads of the internal thread section 120 and the threads of the external thread section 230 remain in contact. This prevents the cross-flow fan 100 from undergoing axial displacement, thus avoiding axial wobbling during rotation. Similarly, during the rotation of the cross-flow fan 100 around its own axis, the connecting shaft 220 can always apply a thrust to the cross-flow fan 100, the direction of which is parallel to the axial direction of the cross-flow fan 100, ensuring that the rotating cross-flow fan 100 does not wobble axially under continuous thrust. After the threads of the internal thread section 120 abut against the threads of the external thread section 230, the internal thread section 120 can drive the external thread section 230 to rotate together, that is, the cross-flow impeller 100 can drive the connecting shaft 220 to rotate around its own axis. It can be seen that during the rotation of the cross-flow impeller 100 around its own axis, the connecting shaft 220 can always provide a force parallel to the axial direction to the cross-flow impeller 100. This force restricts the axial movement of the cross-flow impeller 100, preventing it from moving axially during rotation.

[0043] In existing technologies, cross-flow air supply components also include a nut, which is threadedly connected to the impeller shaft on the support end of the cross-flow impeller 100. This tightens the nut onto the impeller shaft, allowing the inner ring of the bearing to be clamped by the nut and the shoulder on the impeller shaft, thus limiting the axial movement of the cross-flow impeller 100. While this installation method prevents the cross-flow impeller 100 from wobbling axially during rotation, the nut may loosen over time, failing to clamp the bearing and thus losing its axial limiting function. Consequently, the cross-flow impeller 100 will begin to wobble axially again after a period of operation. Therefore, this installation method cannot prevent the cross-flow impeller 100 from wobbling in the long term. In this embodiment of the utility model, with the threaded engagement of the external thread section 230 and the internal thread section 120, as long as the cross-flow fan 100 is in a rotating state, the connecting shaft 220 can always provide a stabilizing force parallel to the axial direction for the cross-flow fan 100. This stabilizing force restricts the axial movement of the cross-flow fan 100, preventing the cross-flow fan 100 from moving along the axial direction during rotation, so that the cross-flow fan 100 can rotate stably for a long time.

[0044] refer to Figure 3 and Figure 4The support member 200 also includes a plurality of balls 240. A first annular groove 221 is formed on the outer wall of the first end of the connecting shaft 220, and a second annular groove 211 is formed on the inner wall of the outer ring 210. The plurality of balls 240 are disposed between the first annular groove 221 and the second annular groove 211, so that the first end of the connecting shaft 220 can be rotatably connected to the inner wall of the outer ring 210 through the plurality of balls 240. It can be understood that the plurality of balls 240 are all located between the first annular groove 221 of the outer ring 210 and the second annular groove 211 on the first end of the connecting shaft 220. The plurality of balls 240 roll between the first annular groove 221 and the second annular groove 211, so that the connecting shaft 220 can rotate about its own axis. On the other hand, the balls 240 can abut against the inner walls of the first annular groove 221 and the second annular groove 211, so that the connecting shaft 220 can only rotate about its own axis and cannot move axially or radially. refer to Figure 3 The support member 200 also includes a retainer 250, which is used to maintain a gap between any two adjacent balls 240. It is understood that while the multiple balls 240 are rolling, the retainer 250 can maintain a gap between any two adjacent balls 240 to prevent the balls 240 from colliding with each other during high-speed rolling. In one embodiment of this utility model, the retainer 250 includes a first half, a second half, and a plurality of pins. The first half and the second half are connected by the plurality of pins, forming a plurality of areas between the first half and the second half for accommodating the balls 240.

[0045] refer to Figure 3 The support member 200 also includes two sealing caps 260, which are respectively disposed on both sides of the outer ring 210. Both sealing caps 260 are used to seal the gap between the first end of the connecting shaft 220 and the outer ring 210. It is understood that the sealing caps 260 can prevent external impurities from entering the gap between the first end of the connecting shaft 220 and the outer ring 210, thereby avoiding damage to the ball bearing 240 and extending the service life of the support member 200. In this embodiment of the present invention, the outer ring 210, ball bearing 240, cage 250, sealing cap 260, and the first end of the connecting shaft 220 in the support member 200 correspond to the outer ring 210, ball bearing 240, cage 250, sealing cap 260, and inner ring of the bearing, which will not be further elaborated here.

[0046] refer to Figure 4 and Figure 5The diameter of the first end of the connecting shaft 220 is larger than the diameter of the second end of the connecting shaft 220. A first mounting groove 310 is formed on the fixing member 300. The first mounting groove 310 is used for the outer ring 210 and the first end of the connecting shaft 220 to extend into. The inner bottom wall of the first mounting groove 310 can abut against the outer ring 210, so that the inner bottom wall of the first mounting groove 310 can press and fix the outer ring 210 onto the housing 50. The inner sidewall of the first mounting groove 310 can abut against both sides of the outer ring 210 and the first end of the connecting shaft 220, so that the inner sidewall of the first mounting groove 310 can restrict the axial movement of the outer ring 210 and the connecting shaft 220. (Reference) Figure 4 and Figure 5 The cross-flow air supply assembly also includes fasteners. A through hole 320 is formed on the fixing member 300, and the fastener passes through the through hole 320 and is threadedly connected to the housing 50, so that the fixing member 300 can be detachably connected to the housing 50 by the fastener. In this embodiment of the invention, the fastener can be a bolt, a second mounting groove 51 is formed on the housing 50, and a threaded hole is formed at a corresponding position on the housing 50.

[0047] Understandably, when installing the support end of the cross-flow fan 100, firstly, the external thread section 230 on the connecting shaft 220 is screwed onto the internal thread section 120 on the support end of the cross-flow fan 100. Next, the outer ring 210 and the first end of the connecting shaft 220 are placed into the second mounting groove 51 on the housing 50. Then, the bolt is passed through the through hole 320 on the fixing member 300 and inserted into the threaded hole on the housing 50. Finally, the bolt is tightened, and the bolt nut presses against the fixing member 300, causing the inner bottom wall of the first mounting groove 310 on the fixing member 300 to press against the outer ring 210. This allows the inner bottom wall of the first mounting groove 310 and the inner bottom wall of the second mounting groove 51 to clamp and fix the outer ring 210, thus completing the installation of the support end of the cross-flow fan 100. After the outer ring 210 is fixed, the inner walls of the first mounting groove 310 and the second mounting groove 51 can abut against the two sides of the outer ring 210 and the first end of the connecting shaft 220. The inner walls of the first mounting groove 310 and the second mounting groove 51 can further restrict the axial movement of the outer ring 210 and the connecting shaft 220. When it is necessary to disassemble the support end of the cross-flow fan 100, first loosen the bolts, then remove the fastener 300 and take out the outer ring 210 and the first end of the connecting shaft 220 from the second mounting groove 51. Finally, unscrew the external thread section 230 on the connecting shaft 220 from the internal thread section 120 on the cross-flow fan 100 to complete the disassembly of the support end of the cross-flow fan 100. (Reference) Figure 5The inner bottom wall of the first mounting groove 310 is evenly distributed with multiple supporting ribs 311, which abut against the outer ring 210. It is understood that after the bolts are tightened, the multiple supporting ribs 311 on the inner bottom wall of the first mounting groove 310 can press the outer ring 210 tightly. The multiple supporting ribs 311 not only press the outer ring 210 tightly but also improve the overall structural strength of the fastener 300.

[0048] refer to Figure 5 The fastener 300 also has a clearance hole 330 communicating with the first mounting groove 310, which is used for the connecting shaft 220 to pass through. In this embodiment of the present invention, the side of the connecting shaft 220 away from the external thread section 230 has an internal hexagonal groove or a cross groove, so that the installer can drive the connecting shaft 220 to rotate with a tool.

[0049] refer to Figure 1 and Figure 6 The cross-flow air supply assembly also includes a rotary drive 400. The other end of the cross-flow impeller 100 is a connecting end. The output end of the rotary drive 400 is connected to the connecting end. The rotary drive 400 is used to drive the cross-flow impeller 100 to rotate around its own axis. In one embodiment of this utility model, the rotary drive 400 can be a motor. A shaft hole is formed on the connecting end of the cross-flow impeller 100. The axis of the shaft hole coincides with the axis of the cross-flow impeller 100. The cross-sectional shape of the shaft hole is polygonal. The cross-sectional shape of the motor's output shaft is the same as that of the shaft hole. The motor's output shaft is inserted into the shaft hole. Both the shaft hole and the motor's output shaft can be rectangular, enabling the motor to drive the cross-flow impeller 100 to rotate around its own axis.

[0050] refer to Figure 4 and Figure 6 In one embodiment of this utility model, the rotation direction of the cross-flow fan 100 is opposite to the tightening direction of the internal thread section 120 and the external thread section 230. The cross-sectional shape of both the shaft hole and the motor output shaft is rectangular. The motor output shaft is inserted into the shaft hole and abuts against the inner bottom wall of the shaft hole. It can be understood that during the rotation of the cross-flow fan 100 around its own axis, the connecting shaft 220 applies a thrust to the cross-flow fan 100, causing the cross-flow fan 100 to tend to move towards the motor, thereby causing the inner bottom wall of the shaft hole to press tightly against the motor output shaft. Therefore, during the rotation of the cross-flow fan 100, the external thread section 230 of the connecting shaft 220 and the motor output shaft continuously clamp the cross-flow fan 100, effectively preventing axial swaying of the cross-flow fan 100 during rotation.

[0051] When installing the cross-flow fan 100, the installer should first screw the external thread section 230 of the connecting shaft 220 into the internal thread section 120 of the cross-flow fan 100 as much as possible. Then, place the outer ring 210 and the first end of the connecting shaft 220 into the second mounting groove 51 on the housing 50. The installer can then rotate the connecting shaft 220 and grip the cross-flow fan 100, causing it to move towards the motor under the threaded engagement of the external thread section 230 and the internal thread section 120. During this movement, the motor's output shaft will insert into the shaft hole on the cross-flow fan 100. After the motor's output shaft abuts against the inner bottom wall of the shaft hole, the installer continues to rotate the connecting shaft 220, tightening it. This allows the external thread section 230 on the connecting shaft 220 and the motor's output shaft to clamp and secure the cross-flow fan 100. Finally, tighten the fastener 300 onto the housing 50 to complete the installation of the cross-flow fan 100.

[0052] When the cross-flow fan 100 needs to be disassembled, the installer can first loosen and remove the fixing part 300. Then, the installer can rotate the connecting shaft 220 and hold the cross-flow fan 100 tightly, so that the cross-flow fan 100 moves away from the motor under the threaded engagement of the external thread section 230 and the internal thread section 120. During the movement of the cross-flow fan 100, the output shaft of the motor will be pulled out from the shaft hole on the cross-flow fan 100. Then, the installer continues to rotate the connecting shaft 220 and hold the cross-flow fan 100 tightly, so that the external thread section 230 on the connecting shaft 220 is pulled out from the internal thread section 120 on the cross-flow fan 100, thus completing the disassembly of the cross-flow fan 100. The support part 200 in this cross-flow air supply assembly not only facilitates the disassembly and assembly of the cross-flow fan 100, but also prevents the cross-flow fan 100 from wobbling axially during rotation.

[0053] This utility model also provides an air conditioner, including the cross-flow air supply assembly described in the above embodiments. It is understood that an air conditioner with this cross-flow air supply assembly can avoid abnormal noise caused by the shaking of the cross-flow fan wheel 100 during operation, thereby improving the user experience. As an embodiment of this utility model, the air conditioner also includes a housing 50, an indoor heat exchanger, an outdoor unit, a throttling element, and piping. A refrigerant flow loop is formed between the indoor heat exchanger and the outdoor unit through the piping. The throttling element is located on the piping, and the cross-flow air supply assembly is located inside the housing 50 and correspondingly arranged with the indoor heat exchanger, enabling the air conditioner to perform both cooling and heating air supply. The housing 50, indoor heat exchanger, outdoor unit, throttling element, and piping are all common components in the field of air conditioners and will not be described further here.

[0054] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A cross-flow air supply assembly, comprising: The air conditioner comprises a cross-flow fan wheel, a support end of the cross-flow fan wheel, a support, a fixing member, and a rotating driving member. The support end is provided with a mounting hole, and an inner wall of the mounting hole is provided with an internal thread section. The support further comprises a plurality of balls, a first annular track groove is formed on an outer wall of the first end of the connecting shaft, and a second annular track groove is formed on an inner wall of the outer ring. The support further comprises a retainer for keeping a space between any two adjacent balls.

2. The cross-flow air plenum assembly of claim 1, wherein: The support further comprises two sealing covers, and the two sealing covers are respectively arranged on two sides of the outer ring.

3. The cross-flow air plenum assembly of claim 2, wherein: The first end of the connecting shaft is provided with a first mounting groove for the outer ring and the first end of the connecting shaft to extend into.

4. The cross-flow air plenum assembly of claim 3, wherein: The first mounting groove is provided with a plurality of support ribs on an inner bottom wall of the first mounting groove.

5. The cross-flow air plenum assembly of claim 3, wherein: The fixing member is provided with a through hole, and a fastener is arranged in the through hole and is screwed with the shell.

6. The cross-flow air plenum assembly of claim 1, wherein: The rotating driving member is arranged on the other end of the cross-flow fan wheel.

7. The cross-flow air plenum assembly of claim 6, wherein: The air conditioner comprises the cross-flow air supply assembly according to any one of claims 1 to 9.

8. The cross-flow air plenum assembly of claim 1, wherein: ​ 9. The cross-flow air plenum assembly of claim 1, wherein: ​ 10. An air conditioner characterized by comprising: ​

Images