Transmission connection mechanism of air conditioner fan and air conditioner

Abstract

The utility model relates to the technical field of household appliances, and provides a transmission connection mechanism of an air conditioner fan and an air conditioner, the transmission connection mechanism of the air conditioner fan comprises a first transmission shaft and a second transmission shaft, the first end of the first transmission shaft is used for connecting a first fan, and the first transmission shaft and the first fan are coaxially arranged; the second transmission shaft and the first transmission shaft are coaxially arranged, the first end of the second transmission shaft is used for being connected with a second fan, the second transmission shaft and the second fan are coaxially arranged, and the second end of the second transmission shaft is detachably connected with the second end of the first transmission shaft. The first transmission shaft and the second transmission shaft are detachably connected, when a single fan needs to be maintained or replaced, only the first transmission shaft and the second transmission shaft need to be detached, the whole transmission system does not need to be disassembled on a large scale, and therefore time and labor cost are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a transmission connection mechanism of an air-conditioning fan and an air conditioner. Background Art

[0002] At present, two fans are configured in a double-duct air conditioner, and a long steel shaft is used to connect the two fans. When disassembling, it is necessary to disassemble both fans and the motor as a whole. Even when only single fan maintenance is required, both fans need to be completely removed, resulting in a cumbersome and complex maintenance process that requires a lot of manpower and time. Summary of the Utility Model

[0003] The utility model provides a transmission connection mechanism of an air-conditioning fan and an air conditioner to solve the defect that the double fans of the existing air conditioner are connected by one shaft and it is time-consuming and laborious to disassemble.

[0004] The utility model provides a transmission connection mechanism of an air-conditioning fan, including:

[0005] A first transmission shaft, the first end of the first transmission shaft is used to connect a first fan, and the first transmission shaft is coaxially arranged with the first fan;

[0006] A second transmission shaft, the second transmission shaft is coaxially arranged with the first transmission shaft, the first end of the second transmission shaft is used to connect a second fan, the second transmission shaft is coaxially arranged with the second fan, and the second end of the second transmission shaft is detachably connected to the second end of the first transmission shaft.

[0007] According to the transmission connection mechanism of the air-conditioning fan provided by the utility model, it further includes a shaft sleeve sleeved at the connection of the second transmission shaft and the first transmission shaft.

[0008] According to the transmission connection mechanism of the air-conditioning fan provided by the utility model, a first connection part is arranged at the second end of the first transmission shaft, a second connection part is arranged at the second end of the second transmission shaft, the first connection part and the second connection part are in concave-convex fit and are connected by bolts.

[0009] According to the transmission connection mechanism of the air-conditioning fan provided by the utility model, a first connection hole is arranged on the first connection part, a second connection hole is arranged on the second connection part, and the first connection hole and the second connection hole are connected by the bolt.

[0010] In a second aspect, the utility model further provides an air conditioner, including:

[0011] A fixing frame;

[0012] The transmission connection mechanism is arranged in the fixed frame, and the transmission connection mechanism is the transmission connection mechanism described in the first aspect;

[0013] The first fan is rotatably arranged in the fixed frame, and the first end of the first fan is detachably connected to the first end of the first transmission shaft of the transmission connection mechanism;

[0014] The second fan is rotatably arranged in the fixed frame, and the first end of the second fan is detachably connected to the first end of the second transmission shaft of the transmission connection mechanism.

[0015] According to the air conditioner provided by the present invention, a clamping block is arranged at the first end of the first fan, a clamping groove is arranged at the first end of the first transmission shaft, and the clamping groove is adapted to the clamping block.

[0016] According to the air conditioner provided by the present invention, the fixed frame is provided with a first installation space and a second installation space. The first fan is rotatably arranged in the first installation space, and the second fan is rotatably arranged in the second installation space.

[0017] According to the air conditioner provided by the present invention, a rotating shaft is arranged at the second end of the second fan, and a bearing is arranged at one end corresponding to the rotating shaft in the second installation space, and the rotating shaft is connected to the bearing.

[0018] According to the air conditioner provided by the present invention, it further includes a driving motor. A motor chamber is arranged in the fixed frame, the driving motor is arranged in the motor chamber, and the power output shaft of the driving motor is connected to the second end of the first fan.

[0019] According to the air conditioner provided by the present invention, an installation frame is arranged between the first installation space and the second installation space, and the shaft sleeve of the transmission connection mechanism is arranged in the installation frame.

[0020] A transmission connection mechanism for an air conditioner fan provided by the present invention includes a first transmission shaft and a second transmission shaft. By adopting a detachable connection method between the first transmission shaft and the second transmission shaft, the rotational power of the first fan connected to the first transmission shaft is transmitted to the second fan through the first transmission shaft and the second transmission shaft. Compared with the traditional connection method of using a long shaft to connect two fans, this design makes it more convenient to disassemble and assemble when maintaining or replacing a single fan. Only need to disassemble the first transmission shaft and the second transmission shaft, without large-scale disassembly of the entire transmission system, thus saving time and labor costs. By adopting a coaxial setting, vibration and noise can be reduced, the stability of the entire transmission system can be improved, and it also helps to extend the service life of the fan and the transmission shaft. Description of the Drawings

[0021] To more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic structural diagram of the transmission connection mechanism of the air-conditioning fan provided by the embodiment of the present utility model.

[0023] Figure 2 It is a schematic structural diagram of the air conditioner provided by the embodiment of the present utility model.

[0024] Figure 3 is Figure 2 a partial enlarged view of

[0025] Figure 4 It is a schematic structural diagram of the first end of the first fan provided by the embodiment of the present utility model.

[0026] Figure 5 It is a schematic structural diagram of the connection structure between the second fan and the bearing provided by the embodiment of the present utility model.

[0027] Reference numerals:

[0028] 1. First transmission shaft; 11. First connection part; 12. Clamping groove;

[0029] 2. Second transmission shaft; 21. Second connection part;

[0030] 3. Bush; 31. Bolt; 4. Fixed frame; 41. Motor compartment; 5. First fan; 51. Clamping block; 6. Second fan; 7. Mounting frame; 8. Bearing. Detailed implementation manners

[0031] To make the objectives, technical solutions and advantages of the present utility model clearer, the following will clearly and completely describe the technical solutions in the present utility model in conjunction with the drawings in the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0032] The following will describe Figures 1 - 5 a transmission connection mechanism and an air conditioner of an air-conditioning fan of the present utility model in conjunction with

[0033] As Figure 1As shown in the figure, this embodiment provides a transmission connection mechanism for an air-conditioning fan, including: a first transmission shaft 1 and a second transmission shaft 2.

[0034] Among them, the first end of the first transmission shaft 1 is used to connect the first fan 5, and the first transmission shaft 1 is coaxially arranged with the first fan 5; the second transmission shaft 2 is coaxially arranged with the first transmission shaft 1, the first end of the second transmission shaft 2 is used to connect the second fan 6, the second transmission shaft 2 is coaxially arranged with the second fan 6, and the second end of the second transmission shaft 2 is detachably connected to the second end of the first transmission shaft 1.

[0035] Through the above solution, the utility model adopts a detachable connection method between the first transmission shaft 1 and the second transmission shaft 2, so that the rotational power of the first fan 5 connected to the first transmission shaft 1 is transmitted to the second fan 6 through the first transmission shaft 1 and the second transmission shaft 2. Compared with the traditional connection method of using a long shaft between two fans, this design makes it more convenient to disassemble and assemble when maintaining or replacing a single fan. Only need to disassemble the first transmission shaft 1 and the second transmission shaft 2, without large-scale disassembly of the entire transmission system, thus saving time and labor costs. By adopting coaxial arrangement, vibration and noise can be reduced, the stability of the entire transmission system can be improved, and it also helps to extend the service life of the fan and the transmission shaft.

[0036] In this embodiment, it further includes a bushing 3, and the bushing 3 is sleeved at the connection part of the second transmission shaft 2 and the first transmission shaft 1.

[0037] With such a setting, after the second end of the second transmission shaft 2 is connected to the second end of the first transmission shaft 1, the connection part is wrapped by the bushing 3. On the one hand, the surface of the connection part of the two transmission shafts is not damaged by the environment and external objects, ensuring stable and reliable connection. At the same time, when the connection part of the two transmission shafts is installed in the bushing 3, the bushing 3 can position the transmission shafts and prevent the two transmission shafts from shaking during rotation; on the other hand, the bushing 3 can form a lubricating oil film between the two transmission shafts and the inner wall of the bushing 3, reducing the friction coefficient and the friction between the two transmission shafts and the bushing 3, which helps to improve the operating efficiency of the two transmission shafts.

[0038] In some embodiments, the second end of the first transmission shaft 1 is provided with a first connection portion 11, the second end of the second transmission shaft 2 is provided with a second connection portion 21, the first connection portion 11 and the second connection portion 21 are in concave-convex fit and are connected by bolts 31.

[0039] With such a setting, by adopting the concave-convex cooperation method, it is beneficial to quickly position and accurately position the connection between the first transmission shaft 1 and the second transmission shaft 2, ensuring the coaxial connection between the two transmission shafts. During installation, only plugging and proper fixation are required, reducing the installation difficulty, improving the assembly efficiency, and not requiring additional production of connectors, thus simplifying the production process and reducing the production cost.

[0040] In some embodiments, the first connecting portion 11 is provided with a first connecting hole, the second connecting portion 21 is provided with a second connecting hole, and the first connecting hole and the second connecting hole are connected by a bolt 31; as Figure 1 shown, the first connecting portion 11 may be a plug, the second connecting portion 21 is a plugging groove, or the first connecting portion 11 is a plugging groove, the second connecting portion 21 is a plug, and the plugging groove and the plug are adapted to each other. By opening a first connecting hole on the plug and second connecting holes on both sides of the plugging groove, and then passing the bolt 31 through the first connecting hole and the second connecting hole in sequence, the plug and the plugging groove are connected, and finally the stable connection between the first transmission shaft 1 and the second transmission shaft 2 is realized.

[0041] Optionally, the cross-section of the plug may be circular, elliptical, triangular, rectangular, etc. Correspondingly, the cross-sectional shape of the plugging groove matches it. For example, the cross-section of the plug is rectangular, that is, the whole is a strip-shaped plug. Correspondingly, the plugging groove is a U-shaped groove. The first connecting hole penetrates the side wall of the strip-shaped plug, and second connecting holes are correspondingly arranged on both side walls of the U-shaped groove. After inserting the strip-shaped plug into the plugging groove, the bolt 31 passes through the first connecting hole and the second connecting hole, thereby connecting the first connecting portion 11 and the second connecting portion 21.

[0042] In some embodiments, the plug is arranged at the middle of the end face of the first transmission shaft 1 or the second transmission shaft 2. Correspondingly, the U-shaped groove is arranged at the middle of the end face of the second transmission shaft 2 or the first transmission shaft 1 to ensure the coaxial connection between the first transmission shaft 1 and the second transmission shaft 2.

[0043] Preferably, after the first connecting portion 11 and the second connecting portion 21 are cooperatively connected, the whole can form a cylindrical structure. After being inserted into the sleeve 3, this cylindrical structure can reduce the friction with the inner wall of the sleeve 3 and is beneficial to the rotation of the first transmission shaft 1 and the second transmission shaft 2.

[0044] As Figure 2 shown, the embodiment of the present invention also provides an air conditioner, including: a fixing frame 4, a transmission connection mechanism, a first fan 5, and a second fan 6.

[0045] Among them, the transmission connection mechanism is arranged in the fixing frame 4. The transmission connection mechanism is the above-mentioned transmission connection mechanism. The first fan 5 is rotatably arranged in the fixing frame 4. The first end of the first fan 5 is detachably connected to the first end of the first transmission shaft 1 of the transmission connection mechanism; the second fan 6 is rotatably arranged in the fixing frame 4. The first end of the second fan 6 is detachably connected to the first end of the second transmission shaft 2 of the transmission connection mechanism.

[0046] As Figure 1 and Figure 4 shown, in some feasible embodiments, a clamping block 51 is arranged at the first end of the first fan 5, and a clamping groove 12 is arranged at the first end of the first transmission shaft 1. The clamping groove 12 is adapted to the clamping block 51; alternatively, a clamping groove 12 is arranged at the first end of the first fan 5, and a clamping block 51 is arranged at the first end of the first transmission shaft 1. For example, the clamping block 51 is a cube structure. Correspondingly, the clamping groove 12 is a rectangular groove. Through the concave-convex fit, the first fan 5 and the first transmission shaft 1 are accurately positioned and quickly connected, and the first fan 5 can transmit torque to the first transmission shaft 1 to prevent relative rotation between the first transmission shaft 1 and the first fan 5; of course, the clamping block 51 can also be a columnar structure with a triangular, elliptical or other polygonal cross-section. Correspondingly, the cross-sectional shape of the clamping groove 12 matches that of the clamping block 51, so as to realize the quick connection and torque transmission between the first fan 5 and the first transmission shaft 1.

[0047] Preferably, the clamping block 51 is arranged at the center of the first end of the first fan 5, and the clamping groove 12 is also arranged at the center of the first end of the first transmission shaft 1 to ensure stable and reliable coaxial rotation.

[0048] In some embodiments, a shaft hole is arranged at the first end of the second fan 6, a connecting hole is arranged in the shaft hole, and a threaded hole is arranged on the outer peripheral side of the second transmission shaft 2. After the second transmission shaft 2 is inserted into the shaft hole at the first end of the second fan 6, the second transmission shaft 2 is fixed in the shaft hole by sequentially connecting the threaded hole and the shaft hole with screws, realizing the fixed connection between the second transmission shaft 2 and the second fan 6.

[0049] Optionally, the connection between the second transmission shaft 2 and the second fan 6 can also adopt the connection method of the cooperation between the clamping groove 12 and the clamping block 51 between the first fan 5 and the first transmission shaft 1, which will not be elaborated here.

[0050] In this embodiment, the fixing frame 4 is provided with a first installation space and a second installation space. The first fan 5 is rotatably arranged in the first installation space, and the second fan 6 is rotatably arranged in the second installation space. Moreover, the axial length of the first installation space is greater than that of the first fan 5, and the axial length of the second installation space is greater than that of the second fan 6. This enables the first fan 5 to be smoothly placed into the first installation space and the second fan 6 to be smoothly placed into the second installation space during assembly. At the same time, it is also convenient to remove the first fan 5 from the first installation space and the second fan 6 from the second installation space during maintenance.

[0051] As Figure 5 shown, a rotating shaft is provided at the second end of the second fan 6, and a bearing 8 is provided at one end of the second installation space corresponding to the rotating shaft. The rotating shaft is connected to the bearing 8.

[0052] As Figure 3 shown, in this embodiment, an installation frame 7 is provided between the first installation space and the second installation space. The bushing 3 of the transmission connection mechanism is arranged in the installation frame 7. By providing the installation frame 7 to fix the bushing 3, it also provides support and positioning for the connection of the first transmission shaft 1 and the second transmission shaft 2. Especially after the two transmission shafts are respectively connected to their respective fans, the overall weight increases. By providing a binding force through the installation frame 7, it prevents the two transmission shafts from shaking during rotation, ensuring the smooth operation of the first fan 5 and the second fan 6.

[0053] In this embodiment, it further includes a driving motor. A motor chamber 41 is provided in the fixing frame 4. The driving motor is arranged in the motor chamber 41, and the power output shaft of the driving motor is connected to the second end of the first fan 5, which can be a direct connection between the power output shaft and the second end of the first fan 5.

[0054] As Figure 4 shown, this design only needs one driving motor to drive the two fans to rotate together. The driving motor is fixed in the motor chamber 41. The power output shaft of the driving motor is coaxially connected to the second end of the first fan 5, which can provide an axial binding force to the second fan 6 and fix its position, thereby fixing the installation positions of the first fan 5 and the second fan 6. For example, a rotating shaft can also be provided at the second end of the first fan 5, and the rotating shaft is fixedly connected to the power output shaft of the driving motor through a coupling to prevent the second fan 6 and the first fan 5 from moving axially after the overall assembly is completed.

[0055] When disassembling the second fan 6 (left fan) of the air conditioner provided by the present utility model, first remove the bolt 31 connecting the first connection portion 11 of the first transmission shaft 1 and the second connection portion 21 of the second transmission shaft 2. Then, the second fan 6 can axially move leftward, so that the two transmission shafts can be separated. Finally, the second fan 6 is pulled out from the second installation space.

[0056] When disassembling the first fan 5 (right fan), first remove the drive motor, then remove the bolt 31 connecting the first connecting portion 11 of the first transmission shaft 1 and the second connecting portion 21 of the second transmission shaft 2. After that, the first fan 5 can be moved to the right to separate the two transmission shafts, and the first fan 5 can be withdrawn from the first installation space.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A driving connection mechanism of an air-conditioning fan, characterized in that, Comprising: A first transmission shaft (1), a first end of the first transmission shaft (1) is used for connecting a first fan (5), and the first transmission shaft (1) is coaxially arranged with the first fan (5); A second transmission shaft (2), the second transmission shaft (2) is coaxially arranged with the first transmission shaft (1), a first end of the second transmission shaft (2) is used for connecting a second fan (6), the second transmission shaft (2) is coaxially arranged with the second fan (6), and a second end of the second transmission shaft (2) is detachably connected to a second end of the first transmission shaft (1).

2. The drive connection mechanism of the air-conditioning fan according to claim 1, characterized in that, Further comprising a shaft sleeve (3), the shaft sleeve (3) is sleeved at a connection part between the second transmission shaft (2) and the first transmission shaft (1).

3. The transmission connection mechanism of the air-conditioning fan according to claim 1, wherein A first connection part (11) is arranged at a second end of the first transmission shaft (1), a second connection part (21) is arranged at a second end of the second transmission shaft (2), the first connection part (11) and the second connection part (21) are in concave-convex fit and are connected by a bolt (31).

4. The drive connection mechanism of the air-conditioning fan according to claim 3, characterized in that, A first connection hole is arranged in the first connection part (11), a second connection hole is arranged in the second connection part (21), and the first connection hole and the second connection hole are connected by the bolt (31).

5. An air conditioner, characterized in that, Comprising: A fixing frame (4); A transmission connection mechanism, arranged in the fixing frame (4), and the transmission connection mechanism is the transmission connection mechanism according to any one of claims 1-4; A first fan (5), rotatably arranged in the fixing frame (4), and a first end of the first fan (5) is detachably connected to a first end of the first transmission shaft (1) of the transmission connection mechanism; A second fan (6), rotatably arranged in the fixing frame (4), and a first end of the second fan (6) is detachably connected to a first end of the second transmission shaft (2) of the transmission connection mechanism.

6. The air conditioner according to claim 5, characterized in that, A clamping block (51) is arranged at a first end of the first fan (5), a clamping groove (12) is arranged at a first end of the first transmission shaft (1), and the clamping groove (12) is adapted to the clamping block (51).

7. The air conditioner according to claim 5, characterized in that, The fixing frame (4) is provided with a first installation space and a second installation space, the first fan (5) is rotatably arranged in the first installation space, and the second fan (6) is rotatably arranged in the second installation space.

8. The air conditioner according to claim 7, wherein, A rotating shaft is arranged at a second end of the second fan (6), and a bearing (8) is arranged at one end corresponding to the rotating shaft in the second installation space, and the rotating shaft is connected to the bearing (8).

9. The air conditioner according to claim 5, characterized in that, Further comprising a driving motor, a motor chamber (41) is arranged in the fixing frame (4), the driving motor is arranged in the motor chamber (41), and a power output shaft of the driving motor is connected to a second end of the first fan (5).

10. The air conditioner according to claim 7, characterized in that, An installation frame (7) is arranged between the first installation space and the second installation space, and the shaft sleeve (3) of the transmission connection mechanism is arranged in the installation frame (7).

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