Fan components and air conditioners

Abstract

This disclosure provides a fan assembly and an air conditioner. The fan assembly includes a support beam, a drive motor, a fan mounting plate, a first fan, a second fan, and a guide rail. The support beam is located near the top air outlet of the air conditioner. The drive motor extends a first shaft and a second shaft on both sides along its axial direction. The fan mounting plate is installed below the support beam, separating an air duct communicating with the top air outlet within the inner cavity of the air conditioner. The drive motor is driven and connected to the first fan via the first shaft. The first fan is located below the fan mounting plate. The drive motor is driven and connected to the second fan via the second shaft, and the second fan is located below the fan mounting plate. The guide rail is installed on the outer periphery of the first fan or the second fan. At least a portion of the structure of the first fan or the second fan is slidably assembled with the guide rail. The first fan or the second fan is configured to move relative to the drive motor in a direction away from each other to create clearance space.

Description

Technical Field

[0001] This disclosure relates to the field of air conditioner technology, and more particularly to a fan assembly and an air conditioner. Background Technology

[0002] Air-cooled cabinets, as a type of cabinet-style air conditioner indoor unit, have been widely used in industrial and commercial fields due to their significant advantage of simple installation. Whether in noisy workshops, densely populated offices, warehouses with stacked goods, or waiting rooms with high pedestrian traffic, air-cooled cabinets are frequently seen, providing crucial support for temperature control in these environments. However, in practical applications, air-cooled cabinets present some unavoidable problems. Due to the high cooling or heating demands of their applications, they typically require strong air circulation and temperature control capabilities. This necessitates a larger and taller cabinet casing to accommodate more heat exchange components and meet airflow requirements. Correspondingly, to achieve efficient air delivery, the fans used in air-cooled cabinets are also relatively large and heavy. This structural feature presents significant challenges to after-sales maintenance. During after-sales maintenance, when maintenance personnel need to inspect, disassemble, replace, or repair core components such as fans, the large size and weight of the fans, coupled with their potentially unusual installation locations due to the tall casing, restricts the operating space. Maintenance personnel must expend considerable physical strength to move and operate these components, significantly increasing the difficulty and intensity of maintenance work, and causing numerous inconveniences for after-sales maintenance. Utility Model Content

[0003] In view of this, in order to solve the technical problem of high maintenance difficulty caused by the large and tall air conditioner casing and large fan volume in the prior art, this disclosure provides a fan assembly and an air conditioner.

[0004] According to a first aspect of the present disclosure, a fan assembly is provided, the fan assembly comprising: a support beam, a drive motor, a fan mounting plate, a first fan, a second fan, and a guide rail, wherein the support beam is disposed near the top air outlet of an air conditioner; the drive motor extends a first shaft portion and a second shaft portion from both sides along its axial direction; the fan mounting plate is mounted below the support beam, separating an air duct communicating with the top air outlet within the inner cavity of the air conditioner; the drive motor is drivenly connected to the first fan via the first shaft portion; the first fan is mounted below the fan mounting plate; the... The drive motor is driven and connected to the second fan via the second shaft, and the second fan is mounted below the fan mounting plate; the guide rail is mounted on the outer periphery of the first fan or the second fan, at least a portion of the structure of the first fan is slidably assembled with the guide rail, and the second fan is configured to move relative to the drive motor in a direction away from the first fan to create clearance space; or, at least a portion of the structure of the second fan is slidably assembled with the guide rail, and the second fan is configured to move relative to the drive motor in a direction away from the second fan to create clearance space.

[0005] In one alternative implementation, The first fan has a first mounting flange on its outer periphery, and the fan assembly includes a first fastener for locking and fixing the first mounting flange to the support beam.

[0006] In one alternative implementation, The support beam is located above the first mounting flange, and the first fastener is configured to pass through the first mounting flange from bottom to top and be fastened to the support beam.

[0007] In one alternative implementation, The second fan has a second mounting flange on its outer periphery, and the fan assembly includes a second fastener for locking and fixing the guide rail and the second mounting flange to the support beam.

[0008] In one alternative implementation, The support beam is located above the guide rail and the second mounting flange, and the second fastener is configured to pass through the guide rail and the second mounting flange from bottom to top and be fastened to the support beam.

[0009] In one alternative implementation, The guide rail is constructed as a bent structure, including a first plane, a second plane parallel to the first plane, and a connecting inclined surface connecting the first plane and the second plane. The first plane and the second plane are respectively set as different sides of the connecting inclined surface.

[0010] In one alternative implementation, At least a portion of the first plane is used for direct connection with the second fan; at least a portion of the first plane is used for sliding assembly with the second fan and for bearing the weight of the second fan.

[0011] In one alternative implementation, The first plane has two clearance notches, which are spaced apart, and there is a solid area between the two clearance notches, which serves as a guide structure for the second fan.

[0012] In one alternative implementation, The second plane has a through hole for the second fastener to pass through, the through hole serving as a mounting position for fixing the guide rail to the support beam.

[0013] This disclosure also provides an air conditioner including the aforementioned fan assembly.

[0014] The technical solutions provided by the embodiments of this disclosure can include the following beneficial effects: In this disclosure, in a fan assembly with two fans, the fan closest to the maintenance port can be adjusted to a movable structure. The fan can be either a first fan or a second fan, depending on the actual installation environment. A guide rail is added to the fan assembly, and one of the fans is slidably assembled with the guide rail. This allows one fan to move away from the other fan relative to the drive motor, thereby creating clearance space for maintenance. Thus, by setting a slide rail on the fan side, when after-sales maintenance, repair, or motor replacement is required, the fan can be disassembled and slid sideways to pull it out of the motor. After maintenance, the fan can be pushed along the guide rail to a suitable position for installation. The entire maintenance process does not require removing the fan and then reinstalling it after maintenance, making after-sales maintenance and motor replacement easier and reducing workload and difficulty.

[0015] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0019] Figure 1 This is a schematic diagram of the axonal structure of an air conditioner with the top cover removed, according to an exemplary embodiment. Figure 2 This is an exploded structural diagram of a fan assembly in an air conditioner, according to an exemplary embodiment. Figure 3 This is a schematic front view of a fan assembly in an air conditioner, according to an exemplary embodiment. Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure at point A in the middle; Figure 5 yes Figure 3 Schematic diagram of the cross-sectional structure at point B in the middle; Figure 6 yes Figure 3 Schematic diagram of the cross-sectional structure at point C; Figure 7 This is a top view of the guide rail structure. Figure 8 yes Figure 7 A side view structural diagram.

[0020] in: 1. Air conditioner; 11. Support beam; 111. Crossbeam; 112. Longitudinal beam; 113. Motor support beam; 12. Top air outlet; 13. Drive motor; 131. First shaft; 132. Second shaft; 133. Motor mounting plate; 14. Fan mounting plate; 15. First fan; 151. First mounting flange; 152. First fastener; 16. Second fan; 161. Second mounting flange; 162. Second fastener; 17. Guide rail; 171. First plane; 171A. Clearance notch; 171B. Solid area; 172. Second plane; 172A. Through hole; 173. Connecting slope. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] The following disclosure provides numerous different embodiments or examples for implementing various aspects of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0023] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0024] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. Therefore, the drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0025] The embodiments of this application will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. This application can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be understood that the preferred embodiments are only for illustrating this application and are not intended to limit the scope of protection of this application.

[0026] In existing air conditioners, when maintenance personnel need to inspect, disassemble, replace, or repair core components such as fans during after-sales maintenance, the large size and weight of the fans, as well as the potentially unusual installation location due to the tall casing, limit the operating space. Maintenance personnel need to expend a lot of physical strength to move and operate the components, which not only significantly increases the difficulty of maintenance but also greatly increases the intensity of maintenance work, causing many inconveniences to after-sales maintenance.

[0027] To alleviate the above problems, refer to Figures 1-8 This disclosure provides a fan assembly, including: a support beam 11, a drive motor 13, a fan mounting plate 14, a first fan 15, a second fan 16, and a guide rail 17. The support beam 11 is positioned near the top air outlet 12 of the air conditioner 1. The drive motor 13 extends a first shaft portion 131 and a second shaft portion 132 on both sides along its axial direction. The fan mounting plate 14 is mounted below the support beam 11, creating an air duct within the inner cavity of the air conditioner 1 that communicates with the top air outlet 12. The drive motor 13 is driven by the first fan 15 via the first shaft portion 131. The first fan 15 is mounted below the fan mounting plate 14. The drive motor 13 is driven to the second fan 16 via the second shaft 132. The second fan 16 is mounted below the fan mounting plate 14. The guide rail 17 is mounted on the outer periphery of the first fan 15 or the second fan 16. At least a portion of the structure of the first fan 15 is slidably assembled with the guide rail 17. The second fan 16 is configured to move relative to the drive motor 13 in a direction away from the first fan 15 to create clearance space. Alternatively, at least a portion of the structure of the second fan 16 is slidably assembled with the guide rail 17. The second fan 16 is configured to move relative to the drive motor 13 in a direction away from the second fan 16 to create clearance space.

[0028] For example, the drive motor 13 is assembled with the motor support beam 113 via the motor mounting plate 133, and the motor support beam 113 is directly assembled with the fan mounting plate 14.

[0029] For example, the guide rail 17 can adopt a "U-shaped groove structure" and be installed on the outer periphery of the first fan 15 (such as the left and right sides of the fan housing). The edge of the first fan 15 housing is provided with a "flange slider" that matches the U-shaped groove. The slider is embedded in the groove of the guide rail 17 and can slide in the horizontal direction (such as the width direction of the air conditioner 1) to realize the translation of the first fan 15 relative to the fan mounting plate 14. For example, when the first fan 15 needs to be moved, the fixing screws between it and the fan mounting plate 14 are loosened, and the slider slides a preset distance away from the second fan 16 along the groove of the guide rail 17 to create clearance space.

[0030] For example, the guide rail 17 can be a "rod-type slide rail", that is, two parallel metal rods are fixed below the fan mounting plate 14 (located on the front and rear sides of the second fan 16), and the housing of the second fan 16 is provided with a "sleeve slider" that matches the metal rods. The sleeve slider is fitted on the metal rods and can slide axially to realize the translation of the second fan 16. For example, when the second fan 16 moves, the coupling between it and the second shaft 132 is released, and the sleeve slider slides along the metal rods in a direction away from the first fan 15. During the sliding process, the second shaft 132 of the drive motor 13 can maintain the drive connection with the second fan 16 through a "telescopic transmission shaft" (such as a splined shaft + sleeve structure) (temporarily disengaged during movement and re-engaged when reset after maintenance).

[0031] For example, the first shaft portion 131 and the second shaft portion 132 of the drive motor 13 can be connected to the input shafts of the first and second fans 16 using a "detachable coupling" (such as a claw coupling). When the fans move, the coupling can be quickly separated (without complete disassembly), and then reconnected after the fans are in place, ensuring the restoration of drive transmission.

[0032] For example, suppose the service port of the air conditioner 1 is located on the side of the second fan 16: if the second fan 16 is slidably assembled with the guide rail 17, and slides away from the first fan 15 when moving, the distance between the second fan 16 and the first fan 15 increases from the initial first distance to the second distance, and the resulting clearance space can accommodate the hand or tool of the maintenance personnel to reach in and directly operate the drive motor 13.

[0033] In this way, in a fan assembly with two fans, the fan closest to the maintenance port can be adjusted to a movable structure. The fan can be either the first fan 15 or the second fan 16, depending on the actual installation environment. A guide rail 17 is added to the fan assembly, and one of the fans is slidably assembled with the guide rail 17. This allows one fan to move away from the other fan relative to the drive motor 13, thus creating clearance space for maintenance. By setting a slide rail on the fan side, when after-sales maintenance, repair, or motor replacement is required, the fan can be disassembled and slid sideways to pull it out of the motor. After maintenance, the fan can be pushed along the guide rail 17 to the appropriate position for installation. The entire maintenance process does not require removing the fan and then reinstalling it after maintenance, which is more convenient for after-sales maintenance and motor replacement, and reduces the workload and difficulty.

[0034] In summary, the "Guide Rail 17 + Sliding Fan" design optimizes the traditional "disassembly-reassembly" maintenance mode of fans into a "parallel movement and avoidance" mode. The core advantages are: reduced maintenance intensity, fewer heavy object handling and complex disassembly steps, especially suitable for after-sales personnel to work quickly in confined spaces; improved maintenance safety, avoiding the risk of bumps, damage or falls during fan disassembly; and simplified operation procedures, ensuring the accuracy of fan movement and repositioning through mechanical limits, reducing the skill requirements for maintenance personnel.

[0035] Considering the installation scheme of the first fan 15 and the support beam 11, in the fan assembly provided in this embodiment, the first fan 15 is provided with a first mounting flange 151 on its outer periphery, and the fan assembly includes a first fastener 152, which is used to lock and fix the first mounting flange 151 and the support beam 11.

[0036] For example, the first mounting flange 151 is an annular structure (integrated with the fan housing), with four threaded holes evenly distributed along the circumference, corresponding to four matching through holes on the support beam 11. The first fastener 152 is a high-strength bolt, which passes through the through holes and is tightened into the threaded holes of the flange. A spring washer is installed between the bolt head and the support beam 11 (to prevent loosening). This design ensures that the tightening force is evenly distributed, preventing the flange surface from warping due to uneven stress.

[0037] For example, the support beam 1111 may include a crossbeam 111 and a longitudinal beam 112 that are detachably mounted to each other, so that the crossbeam 111 and the longitudinal beam 112 form a structure that adapts to the corresponding installation space on the air conditioner 1.

[0038] For example, in this application, the assembly between the crossbeam 111 and the longitudinal beam 112 is hidden within the structure and not exposed to the external structure.

[0039] For example, in this embodiment of the application, the mounting side of the guide rail 17 and the fan is a crossbeam 111.

[0040] In this way, the first mounting flange 151 on the outer periphery of the first fan 15 is locked and fixed to the support beam 11 by the first fastener 152, forming a rigid connection structure of "flange-support beam 11". This design can directly transfer the vibration load (such as centrifugal force and airflow impact load) generated during the operation of the fan to the support beam 11, avoiding the concentration of load on the fan mounting plate 14 or guide rail 17, and reducing the risk of local structural deformation. For example, when the fan speed is high, the traditional structure supported only by the guide rail 17 may generate a large amplitude, while this solution, through the rigid fixation of the flange and the support beam 11, can control the amplitude within a small range, significantly reducing the wear of components (such as bearings and couplings) caused by vibration.

[0041] It should be noted that, in the non-maintenance state, the first fastener 152 locks the first mounting flange 151 to the support beam 11, ensuring that the fixing strength between the fan and the support beam 11 far exceeds the load-bearing capacity of the guide rail 17. This "double fixing" design prevents the fan from shifting or falling due to accidental loosening of the guide rail 17 during operation or transportation. Especially for high-height air-cooled cabinets, where the fan is heavy, this structure can eliminate the safety hazard of falling from height.

[0042] Furthermore, the locking structure between the first mounting flange 151 and the support beam 11 adopts a "quick-release design" (such as using a wing nut or quick-release bolt). During maintenance, only the first fastener 152 needs to be removed to release the fan from the support beam 11, without disassembling the guide rail 17 or other components. Compared to the traditional structure that requires the removal of the entire fan casing, this saves initial disassembly time. At the same time, the fitting design between the flange face and the support beam 11 ensures precise alignment of the installation position when the fan is reset, reducing reset adjustment time.

[0043] In addition, during maintenance, after removing the first fastener 152, the fan load-bearing structure switches from the "support beam 11 + flange" combination to the "guide rail 17 + slider" combination. Since the locking structure between the first mounting flange 151 and the support beam 11 bears the main load under normal conditions, the guide rail 17 only serves as a temporary load-bearing component during maintenance. This reduces the design strength requirements of the guide rail 17 and avoids plastic deformation caused by long-term load-bearing. For example, after multiple maintenance cycles, the straightness deviation of the guide rail 17 can still be controlled within a small range, ensuring smooth fan sliding.

[0044] Considering the specific fastening positions of the first fan 15 and the support beam 11, in the fan assembly provided in this embodiment, the support beam 11 is located above the first mounting flange 151, and the first fastener 152 is configured to pass through the first mounting flange 151 from bottom to top and be fastened to the support beam 11.

[0045] In this way, the support beam 11 is located above the first mounting flange 151, and the first fastener 152 adopts a "bottom-up" tightening direction, perfectly adapting to the operating space characteristics inside the air-cooled cabinet. When maintenance personnel are working on the ground or a low platform, their hands can naturally reach under the fan to directly contact the fastener heads (such as bolt heads and clip operating ends), without having to bend over or use climbing tools to operate from above the support beam 11. Taking a 3m high air-cooled cabinet as an example, the traditional "top-down" tightening method requires maintenance personnel to climb to a height of more than 2m to operate, and a single tightening / untilting takes about 2 minutes. However, this solution can be completed on the ground, reducing the time to less than 30 seconds, and avoiding the risk of falling from a height.

[0046] It should be noted that the vibration generated during wind turbine operation is primarily vertical (up and down). The "bottom-up" tightening method transforms the vibration load into a "preload enhancement force" for the fasteners. During vibration, the combined effect of the wind turbine's weight and the vibration impact force causes the fasteners to shift slightly in the tightening direction, rather than the loosening direction. Comparative tests show that at high wind turbine speeds, bolts tightened using the traditional "top-down" method experience preload decay after a relatively short period of operation, while the bolts in this solution show less preload decay, significantly reducing safety hazards caused by loosening.

[0047] For example, the space below the support beam 11 (i.e., between the first mounting flange 151 and the support beam 11) is typically used to house components such as air ducts and pipelines. The "bottom-up" tightening direction prevents the fastener head from protruding from the upper surface of the support beam 11, reducing the space occupied above. For instance, when bolts are tightened in this direction, only the threaded end is exposed above the support beam 11, whereas the traditional direction requires reserving the bolt head height and operating space. This solution saves longitudinal space and provides greater freedom for air duct design (such as increasing the cross-sectional area of ​​the air duct to improve heat dissipation efficiency).

[0048] For example, when the first fastener 152 passes through the first mounting flange 151 from bottom to top, the through hole of the flange can provide a "guiding effect" for the fastener, ensuring that the flange surface and the bottom surface of the support beam 11 remain in contact during the tightening process. In traditional "top-to-bottom" tightening, the fastener is prone to tilting of the flange surface due to gravity displacement. However, this solution uses "self-guiding" characteristics to control the flange surface level error within a small range, reducing eccentric vibration during wind turbine operation.

[0049] Considering the installation scheme of the second fan 16, the support beam 11, and the guide rail 17, in the fan assembly provided in this embodiment, the second fan 16 is provided with a second mounting flange 161 on its outer periphery, and the fan assembly includes a second fastener 162, which is used to lock and fix the guide rail 17 and the second mounting flange 161 to the support beam 11.

[0050] In this way, the second mounting flange 161 on the outer periphery of the second fan 16 locks and fixes the guide rail 17 and itself to the support beam 11 through the second fastener 162, which can enhance the overall structural stability, make the second fan 16, guide rail 17 and support beam 11 form a stable whole, distribute the fan operating load, and improve vibration resistance; it can also ensure that the guide rail 17 can bear the load reliably during maintenance, and facilitate quick disassembly, thus improving maintenance efficiency.

[0051] For example, the second mounting flange 161 has four through holes with guide chamfers, the guide rail 17 has the same through holes at the corresponding positions, the support beam 11 has matching threaded holes, and the second fastener 162 is bolted from bottom to top through the three through holes and locked to the support beam 11. The bolt head is embedded in the countersunk hole of the flange. The contact surface between the guide rail 17 and the second mounting flange 161 is equipped with positioning pins and holes to ensure installation accuracy and avoid relative displacement affecting sliding.

[0052] Considering the specific fastening positions of the second fan 16 and the support beam 11, in the fan assembly provided in this embodiment, the support beam 11 is located above the guide rail 17 and the second mounting flange, and the second fastener 162 is configured to pass through the guide rail 17 and the second mounting flange 161 from bottom to top and be fastened to the support beam 11.

[0053] In this way, the second fastener 162 passes through the guide rail 17 and the second mounting flange 161 from bottom to top and is securely connected to the support beam 11, which brings multiple technical benefits. From the perspective of structural stability, this method allows the guide rail 17, the second fan 16, and the support beam 11 to form a rigid connection. The vibration load of the fan during operation is transferred to the support beam 11 through the flange and the guide rail 17, dispersing the local stress and reducing the risk of component deformation. In terms of operation, maintenance personnel can directly operate the fastener from below without working at height, improving the convenience and safety of maintenance. At the same time, the top-down direction of the fastener prevents the head from protruding from the surface of the support beam 11, saving space above and facilitating the layout of components such as air ducts and pipelines.

[0054] For example, the second mounting flange 161 has four through holes, and the guide rail 17 also has corresponding through holes. The bottom of the support beam 11 has matching threaded holes. The second fastener 162 is a countersunk bolt, which passes through the through holes of the guide rail 17 and the flange from bottom to top, and then engages with the threaded holes of the support beam 11. The bolt head is embedded in the countersunk groove of the flange and is flush with the flange surface. In addition, the contact surface between the guide rail 17 and the flange is provided with positioning pins and positioning holes. The positioning pins are inserted into the positioning holes to achieve precise alignment and ensure that the positional deviation of each component is small during installation.

[0055] It should be noted that this fastening orientation can also optimize the fit with other components. If there are pipelines above the support beam 11, a clearance groove can be provided at the corresponding position of the support beam 11 to allow the pipelines to pass through the groove and avoid interference with the tail of the bolt. When the air duct is close to the second mounting flange 161, the edge of the flange can be rounded to ensure sufficient operating space for the fasteners. At the same time, the air duct is sealed by adding a sealing gasket to reduce airflow resistance and improve the heat dissipation efficiency of the air-cooled cabinet.

[0056] Considering the specific structural scheme of the guide rail 17, in the fan assembly provided in this embodiment, the guide rail 17 is constructed as a bent structure, including a first plane 171, a second plane 172 arranged parallel to the first plane 171, and a connecting inclined surface 173 connecting the first plane 171 and the second plane 172. The first plane 171 and the second plane 172 are respectively set as different sides of the connecting inclined surface 173.

[0057] Thus, the guide rail 17 is constructed as a bent structure comprising a first plane 171, a second plane 172, and a connecting inclined surface 173, which brings multiple technical benefits. From the perspective of load-bearing and guidance, the parallel first plane 171 and second plane 172 provide stable support surfaces and sliding guide surfaces for the second fan 16, dispersing the pressure during fan sliding and reducing localized wear. The connecting inclined surface 173 softens the transition between the two planes, avoiding stress concentration and enhancing the overall rigidity of the guide rail 17, making it less prone to deformation when bearing the weight of the fan. Simultaneously, this bent structure can adapt to the curvature of the fan's outer perimeter, allowing the guide rail 17 to fit more closely to the fan casing, saving installation space and improving the compactness of the internal structure of the air-cooled cabinet.

[0058] For example, the guide rail 17 is made of 3mm thick cold-rolled steel plate bent into shape. The length of the first plane 171 and the second plane 172 are both 200mm, the width is 50mm, and the distance between them is 10mm. The angle between the connecting inclined surface 173 and the first plane 171 and the second plane 172 is 45° or 135°, and the length is 14mm (that is, the vertical distance between the two planes is smoothly transitioned through the inclined surface). The first plane 171 is provided with a through hole for connecting to the support beam 11, and the second plane 172 is provided with a slider groove for cooperating with the second mounting flange 161. The slider groove extends along the length of the second plane 172 to ensure smooth sliding of the fan.

[0059] It should be noted that this bending structure can also optimize the synergy with other components. When the second fan 16 slides along the guide rail 17, the slider groove of the second plane 172 cooperates with the protrusion at the bottom of the fan to guide and limit its movement, preventing the fan from deviating during sliding. The connecting inclined surface 173 can act as an airflow guide plate, guiding part of the airflow along the inclined surface, reducing eddies in the duct, making the airflow distribution more uniform, and further improving heat dissipation efficiency. In addition, rubber pads can be installed on the connection surface between the first plane 171 and the support beam 11 to reduce noise generated by vibration transmission and lower the operating noise of the fan.

[0060] Considering the specific installation scheme of the guide rail 17 and the second fan 16, in the fan assembly provided in this embodiment, at least a portion of the first plane 171 is used for direct connection with the second fan 16; at least a portion of the first plane 171 is used for sliding assembly with the second fan 16 and for bearing the weight of the second fan 16.

[0061] In this way, the first plane 171 of the guide rail 17 serves both as a direct connection to the second fan 16 and a sliding assembly, significantly improving the integration and stability of the structure. The direct connection area uses fasteners to rigidly fix the fan to the guide rail 17, ensuring no displacement of the fan in non-maintenance conditions and avoiding resonance during operation. The sliding assembly area provides guidance for fan movement during maintenance and can bear the weight of the fan without requiring additional support structures, simplifying the overall design. This "dual-purpose" design reduces the number of components, decreases assembly steps, and lowers the risk of errors caused by the coordination of multiple components.

[0062] It should be noted that this installation scheme also optimizes operation and maintenance performance. The bolts in the direct connection area employ an anti-loosening design (such as the addition of disc springs), resulting in minimal preload decay after prolonged operation at the fan's speed. The inner wall of the sliding groove in the sliding area is coated with PTFE, reducing the coefficient of friction to near zero, thus minimizing the fan's sliding resistance and allowing a single person to easily push the fan during maintenance. Furthermore, a limit block is installed at the end of the sliding groove to prevent the fan from excessively sliding off the guide rail 17, improving maintenance safety.

[0063] Considering the specific construction scheme of the first plane 171, in the fan assembly provided in this embodiment, the first plane 171 has two clearance notches 171A, which are spaced apart, and there is a solid region 171B between the two clearance notches 171A. The solid region 171B is used as a guide structure for the second fan 16.

[0064] Thus, the design of the two clearance notches 171A and the spaced solid area 171B on the first plane 171 balances structural functionality with ease of operation. The clearance notches 171A avoid fasteners or protruding parts on the flange of the second fan 16, preventing interference during installation or sliding and ensuring smooth switching between fixed and moving states of the fan. The solid area 171B, as a guide structure, provides stable limiting for the fan's sliding, preventing lateral displacement during movement and improving sliding accuracy. This design, without increasing the overall size of the guide rail 17, solves the component interference problem and enhances guiding performance, keeping the lateral displacement of the fan during sliding within a very small range.

[0065] It should be noted that this design also optimizes maintenance and operational performance. The size of the clearance notch 171A is adapted to the bolt head diameter, allowing the bolt head to pass smoothly through the notch when disassembling the fan fasteners without requiring additional fan position adjustments, thus shortening disassembly time. The guide ribs of the solid area 171B are made of wear-resistant alloy material (such as high manganese steel), and after numerous sliding tests, the wear amount is ≤0.1mm, ensuring guiding accuracy after long-term use. Simultaneously, the transition between the solid area 171B and the clearance notch 171A uses an arc connection to reduce stress concentration and extend the service life of the guide rail 17.

[0066] Considering the specific construction scheme of the second plane 172, in the fan assembly provided in this embodiment, the second plane 172 has a through hole 172A for the second fastener 162 to pass through, and the through hole 172A is used as the mounting position for fixing the guide rail 17 and the support beam 11.

[0067] Thus, the through hole 172A on the second plane 172, through which the second fastener 162 passes, serves as the mounting position for fixing the guide rail 17 and the support beam 11, significantly improving the stability and reliability of the connection between the guide rail 17 and the support beam 11. The through hole 172A, in conjunction with the second fastener 162, directly transmits the force on the guide rail 17 to the support beam 11, preventing the guide rail 17 from swaying or shifting when bearing the weight of the second fan 16 or when the fan slides, ensuring the rigidity of the overall structure. Simultaneously, the clearly defined mounting position design simplifies the assembly process, reduces positioning errors during installation, and improves the connection accuracy between the guide rail 17 and the support beam 11, laying the foundation for smooth sliding and stable operation of the fan. It should be noted that this design also optimizes maintenance and performance. The position of the through hole 172A avoids the sliding area between the guide rail 17 and the second fan 16, preventing interference between the fastener and the sliding parts of the fan and ensuring smooth fan sliding. Simultaneously, the fit between the through hole 172A and the second fastener 162 is a clearance fit, facilitating fine-tuning during installation and reducing assembly difficulty. Furthermore, the inner wall of the through hole 172A is smoothed, reducing frictional resistance when the second fastener 162 passes through, extending the fastener's service life. Testing showed that after multiple disassembly and installation, the wear on the fastener was significantly lower than in the case without the smoothing treatment.

[0068] This disclosure also provides an air conditioner 1, which includes the above-described fan assembly and can achieve all the effects of the above-described fan assembly, which will not be described in detail here.

[0069] By applying the aforementioned fan assembly to air conditioner 1, air conditioner 1 can benefit in terms of ease of maintenance and operational stability. Maintenance does not require complete disassembly of the fan, reducing maintenance intensity and time costs; during operation, the connections between components are stable, reducing vibration and noise, improving the user experience; at the same time, the compact structural design optimizes the utilization of the internal space of air conditioner 1.

[0070] To better understand the fan assembly and air conditioner 1 solutions of the embodiments of this disclosure, further exemplary examples are provided: This disclosure provides a fan assembly, including a support beam 11, a fan mounting plate 14, a motor bracket, a motor, a guide rail 17, and fasteners. The fan mounting plate 14, motor bracket, and guide rail 17 are fixed to the support beam 11 by fasteners. The guide rail 17 is located next to one side of the fan, and after installation, a portion of it presses against the fan's fastening flange surface. The guide rail 17 has a clearance notch 171A at the fan fastener location. The motor is fixed to the motor bracket by fasteners and to the fans on both sides by bushings and fastening screws.

[0071] When repairing the motor of a conventional air-cooled cabinet, it is necessary to disassemble one side of the fan blades, remove it from the entire unit, then disassemble the motor and pull it out from the other side of the fan. After the motor repair is completed, the motor is reassembled, and then the disassembled fan is reinstalled into the entire unit and tightened to complete the repair. Because air-cooled cabinets are relatively tall and the fans are large and heavy, the work intensity during repair is quite high.

[0072] The fan assembly proposed in this embodiment, by adding a guide rail 17 next to one side of the fan, eliminates the need to disassemble and remove the fan during motor maintenance. This allows for easy reassembly after maintenance, significantly reducing labor intensity. During motor maintenance, after removing the fan fasteners on the guide rail 17 side, the fan is pushed along the guide rail 17. The fan's load-bearing components change from the fan fasteners to the guide rail 17 and fasteners. After creating space for motor disassembly, the motor fasteners are removed, and the motor is pulled out from the other side of the fan assembly. After maintenance, the motor is reassembled, and the fan on the guide rail 17 side is pushed along the guide rail 17 to its installation position. Finally, the fan fasteners are tightened to complete the maintenance.

[0073] Those skilled in the art will further recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0074] It should be noted that the terms "one implementation," "embodiment," "exemplary embodiment," and "some embodiments" used in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0075] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or air conditioner that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or air conditioner. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or air conditioner that includes said element.

[0076] The above embodiments are merely preferred embodiments provided to fully illustrate this application, and the scope of protection of this application is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on this application are all within the scope of protection of this application.

Claims

1. A fan assembly comprising: include: A support beam is provided near the top air outlet of the air conditioner. A drive motor, wherein a first shaft portion and a second shaft portion extend from both sides along its own axial direction; A fan mounting plate is installed below the support beam, and a duct communicating with the top air outlet is separated from the inner cavity of the air conditioner. The first fan is driven by a motor connected to the first fan via the first shaft; the first fan is mounted below the fan mounting plate. The second fan is driven by the drive motor connected to the second fan via the second shaft, and the second fan is installed below the fan mounting plate; A guide rail is mounted on the outer periphery of the first fan or the second fan. At least a portion of the structure of the first fan is slidably assembled with the guide rail. The second fan is configured to move relative to the drive motor in a direction away from the first fan to create clearance space. Alternatively, at least a portion of the structure of the second fan is slidably fitted to the guide rail, and the second fan is configured to move relative to the drive motor in a direction away from the second fan to create clearance space.

2. The fan assembly of claim 1, wherein, The first fan has a first mounting flange on its outer periphery, and the fan assembly includes a first fastener for locking and fixing the first mounting flange to the support beam.

3. The fan assembly of claim 2, wherein, The support beam is located above the first mounting flange, and the first fastener is configured to pass through the first mounting flange from bottom to top and be fastened to the support beam.

4. The fan assembly of claim 1, wherein, The second fan has a second mounting flange on its outer periphery, and the fan assembly includes a second fastener for locking and fixing the guide rail and the second mounting flange to the support beam.

5. The fan assembly of claim 4, wherein, The support beam is located above the guide rail and the second mounting flange, and the second fastener is configured to pass through the guide rail and the second mounting flange from bottom to top and be fastened to the support beam.

6. The fan assembly of claim 5, wherein, The guide rail is constructed as a bent structure, including a first plane, a second plane parallel to the first plane, and a connecting inclined surface connecting the first plane and the second plane. The first plane and the second plane are respectively set as different sides of the connecting inclined surface.

7. The fan assembly of claim 6, wherein, At least a portion of the first plane is used for direct connection with the second fan; at least a portion of the first plane is used for sliding assembly with the second fan and for bearing the weight of the second fan.

8. The fan assembly of claim 7, wherein, The first plane has two clearance notches, which are spaced apart, and there is a solid area between the two clearance notches, which serves as a guide structure for the second fan.

9. The fan assembly of claim 6, wherein, The second plane has a through hole for the second fastener to pass through, the through hole serving as a mounting position for fixing the guide rail to the support beam.

10. An air conditioner characterized by comprising: Includes the wind turbine assembly as described in any one of claims 1-9.

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