Rotary fan device and air-cooled machine room air conditioner

Abstract

The utility model relates to the technical field of air conditioners, and discloses a rotary fan device and an air-cooled machine room air conditioner, the rotary fan device comprises a fan assembly and a rotary driving assembly, the rotary driving assembly is arranged in an air conditioner body, and the fan assembly is connected with the rotary driving assembly. The rotation driving assembly is used for driving the fan assembly to rotate so as to drive the fan assembly to rotate to be unfolded out of the air conditioner body or rotate to be retracted into the air conditioner body. According to the air conditioner, the rotary driving assembly is connected with the fan assembly, and when the rotary driving assembly rotates, the fan assembly can be driven to rotate together, so that the fan assembly can be screwed in and out of the air conditioner body, and the convenience of maintaining the fan assembly is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to a rotary fan device and an air-cooled machine room air conditioner. Background Art

[0002] At present, with the rapid development of economy, communication, mobile Internet and big data business are also growing rapidly. Servers and network equipment in data rooms will generate a lot of heat when running. If the heat is not dissipated in time, it will cause equipment overheating and damage. Nowadays, computer room air conditioners are mainly installed in computer rooms to control indoor temperature and humidity, ensure that the equipment runs within the appropriate working temperature range, and improve the reliability and stability of the equipment.

[0003] Among them, the most commonly used computer room air conditioner is the air-cooled backplane computer room air conditioner, which is usually installed on the backplane of the computer room equipment, so that there is no need to occupy additional computer room space, saving valuable computer room space resources.

[0004] Among them, the fan is a key component in the air-cooled backplane computer room air conditioner. It is easy to be damaged after long-term operation, which will cause the indoor temperature to be too high. Therefore, the fan needs to be disassembled and maintained frequently. However, nowadays, the loading and unloading of the fan is generally done manually, which is not only extremely inconvenient but also has certain safety hazards, causing losses to workers and units. Utility Model Content

[0005] The utility model aims to provide a rotary fan device and an air-cooled machine room air conditioner, aiming to solve the problem of inconvenient disassembly and maintenance of the fan of the machine room air conditioner in the prior art.

[0006] To solve the above technical problems, the purpose of the utility model is achieved through the following technical solutions: providing a rotary fan device, which is applied to the air-conditioning body of an air-cooled computer room air conditioner, the rotary fan device comprising a fan assembly and a rotary drive assembly, the rotary drive assembly being arranged in the air-conditioning body, the fan assembly being connected to the rotary drive assembly, the rotary drive assembly being used to drive the fan assembly to rotate, so as to drive the fan assembly to rotate and extend to the outside of the air-conditioning body or to rotate and retract into the inside of the air-conditioning body.

[0007] Furthermore, an installation opening is provided on the air conditioner body; the rotation drive assembly includes a rotating shaft assembly and a driving member; the rotating shaft assembly includes a base member and a rotating shaft, the base member is fixed on one side of the installation opening, the rotating shaft is rotatably installed on the base member, and the driving member is fixedly installed on one side of the base member and connected to the rotating shaft.

[0008] Furthermore, the base member includes a bearing seat and a shaft kit; the bearing seat is fixed on one side of the mounting opening, the shaft kit is installed inside the bearing seat, and the axial limit of the rotating shaft is located inside the shaft kit.

[0009] Furthermore, the base member also includes at least one bearing, the bearing is arranged inside the shaft sleeve, and the rotating shaft is radially limited to the inner side of the bearing.

[0010] Further, the shaft kit includes a shaft sleeve, a baffle and a pressure ring; the shaft sleeve is fixedly installed inside the bearing seat, the baffle is fixedly installed on one end of the shaft sleeve, and the pressure ring is fixedly installed on the other end of the shaft sleeve; the bearing is arranged inside the shaft sleeve;

[0011] A first annular limiting groove is reserved between the baffle and one side of the shaft sleeve, and a first convex ring is provided on the shaft wall of the rotating shaft, and the first convex ring is limited in the first annular limiting groove.

[0012] Furthermore, the driving member is fixedly mounted on the other end of the sleeve, a second annular limiting groove is left between the driving member and the other side of the sleeve, a second convex ring is provided on the rotating shaft, and the second convex ring is limited in the second annular limiting groove.

[0013] Furthermore, a connecting plate is provided on the fan assembly, and the rotating shaft is fixedly connected to the connecting plate.

[0014] Furthermore, two rotating shaft assemblies are provided, and the two rotating shaft assemblies are respectively provided on both sides of the mounting opening, and both sides of the fan assembly are respectively connected to the two rotating shaft assemblies; and the driving member is installed on one of the rotating shaft assemblies.

[0015] Furthermore, another of the rotating shaft components is also provided with an angle detector for detecting the rotation angle of the rotating shaft.

[0016] The embodiment of the utility model further provides an air-cooled machine room air conditioner, which comprises the rotary fan device as described above.

[0017] The embodiment of the utility model provides a rotary fan device and an air-cooled machine room air conditioner, wherein the rotary fan device includes a fan assembly and a rotary drive assembly, wherein the rotary drive assembly is disposed in the air conditioner body, the fan assembly is connected to the rotary drive assembly, and the rotary drive assembly is used to drive the fan assembly to rotate, so as to drive the fan assembly to rotate and extend to the outside of the air conditioner body or to rotate and retract to the inside of the air conditioner body. The embodiment of the utility model connects the fan assembly through the rotary drive assembly, and when the rotary drive assembly rotates, it can drive the fan assembly to rotate together, so that the fan assembly can be rotated in and out of the air conditioner body, which is conducive to improving the convenience of repairing the fan assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the overall structure of an air-cooled computer room air conditioner provided by an embodiment of the utility model;

[0020] Figure 2 Another overall structural schematic diagram of the air-cooled computer room air conditioner provided by the embodiment of the utility model;

[0021] Figure 3 An exploded view of a rotary fan device provided in an embodiment of the utility model;

[0022] Figure 4 A schematic diagram of the structure of the rotating shaft provided in an embodiment of the utility model;

[0023] Figure 5 A schematic diagram of the structure of a shaft sleeve provided in an embodiment of the utility model;

[0024] Figure 6 A schematic diagram of the structure of a rotary drive assembly provided in an embodiment of the utility model;

[0025] Figure 7 Another exploded view of the rotary fan device provided by the embodiment of the utility model;

[0026] Figure 8 A schematic diagram of the structure of an angle detector provided in an embodiment of the utility model.

[0027] Description of the symbols in the figure:

[0028] 1. Air conditioner body; 11. Installation port;

[0029] 2. Rotary fan device; 21. Fan assembly; 211. Connecting plate; 22. Rotary drive assembly; 23. Base member; 231. Bearing seat; 232. Shaft kit; 2321. Baffle; 2322. Bushing; 2323. Pressing ring; 2324. Mounting portion; 2325. Insertion portion; 2326. Limiting ring; 233. Bearing; 24. Rotating shaft; 241. First convex ring; 242. Second convex ring; 243. Connecting portion; 25. Driving member; 26. First annular limiting groove; 27. Second annular limiting groove; 28. Scale; 29. ​​Scale reading head. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0032] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0033] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0034] See also Figure 1 and Figure 2 The embodiment of the utility model provides a rotary fan device, which is applied to the air-conditioning body 1 of the air-cooled computer room air conditioner. The rotary fan device 2 includes a fan assembly 21 and a rotary drive assembly 22. The rotary drive assembly 22 is arranged in the air-conditioning body 1. The fan assembly 21 is connected to the rotary drive assembly 22. The rotary drive assembly 22 is used to drive the fan assembly 21 to rotate, so as to drive the fan assembly 21 to rotate and extend to the outside of the air-conditioning body 1 or rotate and retract into the inside of the air-conditioning body 1.

[0035] In this embodiment, the rotary fan device 2 is located at the bottom of the air-conditioning body 1 and is used to dissipate heat inside the air-conditioning body 1. The rotary drive component 22 can rotate clockwise and counterclockwise relative to the air-conditioning body 1. The fan component 21 is connected to the output end of the rotary drive component 22. When the rotary drive component 22 rotates, the fan component 21 can be linked to rotate together, thereby realizing the rotation function of the rotary fan device 2 of this embodiment; specifically, for example, when the fan component 21 fails and needs to be repaired, since the fan component 21 is located in the air-conditioning body 1, it is not convenient to repair it. At this time, the rotary drive component 22 can be rotated clockwise to drive the fan component 21 to rotate in the clockwise direction as a whole, so that the fan component 21 can be rotated to the outside of the air-conditioning body 1, and then it can be repaired. After the fan component 21 is repaired, the rotary drive component 22 is rotated counterclockwise to drive the fan component 21 to rotate counterclockwise as a whole, so that the fan component 21 can be rotated to the inside of the air-conditioning body 1.

[0036] It should be noted that the rotation drive component 22 can also rotate counterclockwise to drive the fan component 21 to rotate to the outside of the air-conditioning body 1, or rotate clockwise to drive the fan component 21 to rotate to the inside of the air-conditioning body 1. Therefore, there is no restriction on the rotation direction of the rotation drive component 22 to drive the fan component 21 to rotate out of the air-conditioning body 1 or rotate it back into the air-conditioning body 1.

[0037] In the present embodiment, the fan assembly 21 is rotated in and out relative to the air conditioner body 1 by the rotating drive assembly 22, so that the fan assembly 21 can be repaired without disassembling the fan assembly 21. Compared with the fan assembly 21 in the prior art that needs to be disassembled and repaired, the rotary fan device in the present embodiment has a simple structure and can operate in a smaller space, which effectively improves the convenience and work efficiency of repairing the fan assembly 21.

[0038] See also Figure 2 and Figure 3 As shown, in one embodiment, an installation opening 11 is opened on the air conditioner body 1; the rotation drive assembly 22 includes a shaft assembly and a driving member 25; the shaft assembly includes a base member 23 and a shaft 24, the base member 23 is fixed on one side of the installation opening 11, the shaft 24 is rotatably installed on the base member 23, and the driving member 25 is fixedly installed on one side of the base member 23 and connected to the shaft 24.

[0039] In this embodiment, the fan assembly 21 is installed at the position of the installation opening 11. When the rotating drive assembly 22 drives the fan assembly 21 to rotate, the installation opening 11 can prevent the fan assembly 21 from being blocked by the air-conditioning body 1 during rotation, so as to ensure that the fan assembly 21 can rotate out of the air-conditioning body 1 and then rotate back into the air-conditioning body 1.

[0040] In this embodiment, the rotating shaft 24 is limited in the base member 23 in both the radial direction and the axial direction, and can rotate in the base member 23; wherein, the driving member 25 can be a DC torque motor, an AC torque motor or a brushless DC torque motor. In this embodiment, a DC torque motor is preferably used. When the DC torque motor is powered on and rotated, the DC torque motor drives the rotating shaft 24 to rotate together, thereby causing the rotating shaft 24 to drive the fan assembly 21 to rotate.

[0041] In this embodiment, the DC torque motor has the characteristics of low speed, large torque, strong overload capacity, fast response, good linearity and small torque fluctuation. When the load increases, the speed of the DC torque motor can automatically decrease, and when the output torque increases, the speed of the DC torque motor can maintain balance with the load. By selecting a DC torque motor to drive the shaft 24 to rotate, the torque applied to the fan assembly 21 can be adjusted, which is beneficial to the control of the rotation speed and achieves the effect of "slow rotation and slow lifting" stable operation.

[0042] See also Figure 3 and Figure 6 As shown, in one embodiment, the base member 23 includes a bearing seat 231 and a shaft sleeve 232; the bearing seat 231 is fixed on one side of the mounting opening 11, the shaft sleeve 232 is installed inside the bearing seat 231, and the rotating shaft 24 is axially limited inside the shaft sleeve 232.

[0043] In this embodiment, the bearing seat 231 is connected to the mounting port 11 by screws and is located on the outside of the air conditioner body 1. The shaft kit 232 is inserted into the bearing seat 231 and fixedly connected to the bearing seat 231 by screws. The rotating shaft 24 can be limited in the axial direction inside the shaft kit 232, so that when the rotating shaft 24 rotates, the shaft kit 232 can prevent the rotating shaft 24 from moving in the axial direction, thereby improving the rotation stability of the rotating shaft 24.

[0044] In one embodiment, the base member 23 further includes at least one bearing 233 . The bearing 233 is disposed inside the shaft sleeve 232 , and the rotating shaft 24 is radially limited to the inner side of the bearing 233 .

[0045] In this embodiment, since there may be manufacturing errors when manufacturing the shaft kit 232 and the rotating shaft 24, the manufacturing errors may cause a gap between the assembled shaft kit 232 and the rotating shaft 24. By sleeved the bearing 233 on the circumferential outer side of the rotating shaft 24, when the rotating shaft 24 rotates, the bearing 233 can prevent the rotating shaft 24 from shifting in the radial direction, thereby improving the rotation stability of the rotating shaft 24; wherein, a plurality of bearings 233 can be provided to further improve the rotation stability of the rotating shaft 24, and the number of bearings 233 is set according to the length of the rotating shaft 24 and the installation space inside the shaft kit 232. In this embodiment, two bearings 233 are preferably provided. The force of a pair of bearings 233 is more balanced, can withstand bidirectional loads, and has higher rigidity and positioning accuracy.

[0046] See also Figure 3 to Figure 6 As shown, in one embodiment, the shaft sleeve 232 includes a sleeve 2322, a baffle 2321 and a pressure ring 2323; the sleeve 2322 is fixedly installed inside the bearing seat 231, the baffle 2321 is fixedly installed at one end of the sleeve 2322, and the pressure ring 2323 is fixedly installed at the other end of the sleeve 2322; the bearing 233 is arranged inside the sleeve 2322; a first annular limiting groove 26 is reserved between the baffle 2321 and one side of the sleeve 2322, and a first convex ring 241 is provided on the shaft wall of the rotating shaft 24, and the first convex ring 241 is limited in the first annular limiting groove 26. The driving member 25 is fixedly installed at the other end of the sleeve 2322, and a second annular limiting groove 27 is reserved between the driving member 25 and the other side of the sleeve 2322, and a second convex ring 242 is provided on the rotating shaft 24, and the second convex ring 242 is limited in the second annular limiting groove 27.

[0047] In this embodiment, the shaft sleeve 2322 includes a mounting portion 2324 and an insertion portion 2325 (eg, Figure 5 As shown in FIG. 2 ), the insertion portion 2325 is radially protruded outwardly at one end of the mounting portion 2324, the sleeve 2322 is inserted into the through hole of the bearing seat 231 through the insertion portion 2325, and the mounting portion 2324 of the sleeve 2322 is fixedly connected to the outer wall of the bearing seat 231 by screws, wherein a limiting ring 2326 (as shown in FIG. 2 ) is radially inwardly provided at the other end of the mounting portion 2324. Figure 5As shown in the figure, the inner diameter of the limiting ring 2326 is smaller than the inner diameter of the inserting portion 2325; the baffle 2321 is fixedly connected to one side of the limiting ring 2326 by screws, and the bearing 233 is sleeved on the rotating shaft 24 and abuts against the other side of the limiting ring 2326, so that there is a gap between the baffle 2321 and the bearing 233 to form a first annular limiting groove 26, and the first convex ring 241 is limited in the first annular limiting groove 26, so that both sides of the first convex ring 241 are axially limited Between the baffle 2321 and the bearing 233, the pressure ring 2323 is fixedly connected to the mounting portion 2324 and pressed against the bearing 233, so that the bearing 233 is squeezed and fixed between the other side of the limiting ring 2326 and the pressure ring 2323, so that the bearing 233 is squeezed and assembled in the sleeve 2322; in this way, the baffle 2321, the bearing 233 and the pressure ring 2323 can jointly limit the axial movement of the rotating shaft 24 during rotation, thereby ensuring the stability of the rotation of the rotating shaft 24.

[0048] Among them, since a pressure ring 2323 is installed on the outer side of the sleeve 2322, the driving member 25 is pressed against the outer side of the pressure ring 2323, so that there is a gap between the driving member 25 and the bearing 233 to form a second annular limiting groove 27. By setting a second convex ring 242 on the rotating shaft 24, the second convex ring 242 is limited in the second annular groove, and both sides of the second annular groove are in contact with the bearing 233 and the driving member 25, which is beneficial to further enhance the effect of limiting the axial movement of the rotating shaft 24 and improve the stability of the rotation of the rotating shaft 24.

[0049] See also Figure 3 , Figure 4 and Figure 7 As shown, in one embodiment, a connecting plate 211 is provided on the fan assembly 21 , and the rotating shaft 24 is fixedly connected to the connecting plate 211 .

[0050] In this embodiment, a connecting portion 243 is provided on the circumferential outer side of the rotating shaft 24, and the rotating shaft 24 is screwed to the connecting plate 211 of the fan assembly 21 through the connecting portion 243. When the driving member 25 drives the rotating shaft 24 to rotate, the rotating shaft 24 drives the connecting plate 211 to rotate, and the connecting plate 211 drives the fan assembly 21 to rotate, thereby realizing that the fan assembly 21 is rotated out of the air-conditioning body 1 or rotated back into the air-conditioning body 1 in the installation port 11.

[0051] In one embodiment, two rotating shaft assemblies are provided, and the two rotating shaft assemblies are respectively provided on both sides of the installation opening 11, and the two side corners of the fan assembly 21 are respectively connected to the two rotating shaft assemblies; the driving member 25 is installed on one of the rotating shaft assemblies.

[0052] In this embodiment, both side corners of the fan assembly 21 are connected to a rotating shaft assembly. When the driving member 25 drives the rotating shaft assembly to rotate, the rotating shaft assembly drives the fan assembly 21 to rotate, and the fan assembly 21 simultaneously drives another rotating shaft assembly to rotate, so as to enable the fan assembly 21 to rotate in or out of the air conditioner body 1.

[0053] In this embodiment, two rotating shaft assemblies are provided and connected to the fan assembly 21 , so that the installation of the fan assembly 21 is more stable and the center of gravity of the fan assembly 21 is prevented from shifting.

[0054] See also Figure 7 and Figure 8 As shown, in one embodiment, another rotating shaft assembly is further provided with an angle detector for detecting the rotation angle of the rotating shaft 24 .

[0055] In this embodiment, before the driving member 25 drives the shaft assembly to rotate, the rotation angle of the driving member 25 can be set first. When the driving member 25 drives the shaft assembly to rotate, the angle detector will detect the rotation angle of the shaft assembly. When the angle detector detects that the rotation angle reaches the set rotation angle, the driving member 25 is controlled to stop rotating, and the shaft assembly and the fan assembly 21 are simultaneously driven to stop rotating; wherein the set rotation angle is the fan assembly 21 rotating out of the outside of the air-conditioning body 1 and the fan assembly 21 rotating back into the inside of the air-conditioning body 1.

[0056] Specifically, the angle detector includes a scale 28 and a scale reading head 29. The scale 28 is an arc scale that matches the shape of the second convex ring 242. The scale 28 is an electronic grating with angle information. The scale 28 is fixedly mounted on the second convex ring 242 so that the rotating shaft 24 can simultaneously drive the scale 28 to rotate when it rotates; the scale reading head 29 is mounted on the pressure ring 2323 so that the scale reading head 29 remains fixed; when the scale 28 rotates, the scale reading head 29 can detect the rotation angle information of the scale 28, thereby realizing the control of the rotation angle of the fan assembly 21.

[0057] In this embodiment, the rotation angle of the fan assembly 21 is detected by an angle detector, so that the fan assembly 21 can stop when it rotates to the set rotation angle, which is beneficial to the stability of the rotation of the fan assembly 21, avoids the fan assembly 21 from rotating too much or too little, and ensures that the fan assembly 21 can be rotated out or rotated back into the air conditioner body 1.

[0058] The embodiment of the utility model further provides an air-cooled machine room air conditioner, which comprises the rotary fan device 2 as described above.

[0059] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A rotary fan device, used in an air-cooled room air conditioner body, characterized in that: The rotary fan device includes a fan assembly and a rotary drive assembly. The rotary drive assembly is arranged in the air-conditioning body. The fan assembly is connected to the rotary drive assembly. The rotary drive assembly is used to drive the fan assembly to rotate, so as to drive the fan assembly to rotate and extend to the outside of the air-conditioning body or to rotate and retract into the inside of the air-conditioning body.

2. The rotary fan device according to claim 1, characterized in that: An installation opening is provided on the air conditioner body; the rotation drive assembly includes a rotating shaft assembly and a driving member; the rotating shaft assembly includes a base member and a rotating shaft, the base member is fixed on one side of the installation opening, the rotating shaft is rotatably installed on the base member, and the driving member is fixedly installed on one side of the base member and connected to the rotating shaft.

3. The rotary fan device according to claim 2, characterized in that: The base member includes a bearing seat and a shaft kit; the bearing seat is fixed on one side of the mounting opening, the shaft kit is installed inside the bearing seat, and the axial limit of the rotating shaft is located inside the shaft kit.

4. The rotary fan device according to claim 3, characterized in that: The base member further comprises at least one bearing, wherein the bearing is arranged inside the shaft sleeve, and the rotating shaft is radially limited to the inner side of the bearing.

5. The rotary fan device according to claim 4, characterized in that: The shaft kit comprises a shaft sleeve, a baffle and a pressure ring; the shaft sleeve is fixedly installed inside the bearing seat, the baffle is fixedly installed on one end of the shaft sleeve, and the pressure ring is fixedly installed on the other end of the shaft sleeve; the bearing is arranged inside the shaft sleeve; A first annular limiting groove is reserved between the baffle and one side of the shaft sleeve, and a first convex ring is provided on the shaft wall of the rotating shaft, and the first convex ring is limited in the first annular limiting groove.

6. The rotary fan device according to claim 5, characterized in that: The driving member is fixedly mounted on the other end of the shaft sleeve, a second annular limiting groove is left between the driving member and the other side of the shaft sleeve, a second convex ring is provided on the rotating shaft, and the second convex ring is limited in the second annular limiting groove.

7. The rotary fan device according to claim 5, characterized in that: The fan assembly is provided with a connecting plate, and the rotating shaft is fixedly connected to the connecting plate.

8. The rotary fan device according to claim 2, characterized in that: There are two rotating shaft assemblies, which are respectively arranged on both sides of the installation opening, and both sides of the fan assembly are respectively connected to the two rotating shaft assemblies; the driving member is installed on one of the rotating shaft assemblies.

9. The rotary fan device according to claim 8, characterized in that: Another of the rotating shaft components is also provided with an angle detector for detecting the rotation angle of the rotating shaft.

10. An air-cooled computer room air conditioner, characterized in that: A rotary fan device comprising any one of claims 1-9.

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