Mounting structure for bearing seat of ducted air conditioner

Abstract

The utility model discloses a ducted air conditioner bearing seat mounting structure in the technical field of air conditioning equipment, which comprises a bearing seat, a bearing, a rotating shaft and a mounting plate, the top of the bearing seat is provided with a bearing mounting hole, a bearing outer ring is fixedly mounted in the bearing mounting hole, a bearing inner ring is fixedly sleeved on the rotating shaft, and the bottom of the bearing seat is provided with a base. The base is fixedly arranged on the mounting plate, a protruding structure is arranged on the lower surface of the base and makes contact with the mounting plate, a plurality of screw holes are formed in the protruding structure in the area where the protruding structure makes contact with the mounting plate, the base and the mounting plate are fixed through screws, and the mounting plate comprises a duct type air conditioner top plate and a duct type air conditioner middle partition plate. The base can rotate around the central axis of the rotating shaft and can be switched between the air pipe machine top plate and the air pipe machine middle partition plate. The wind wheel assembly solves the technical problems that in the prior art, different installation requirements of users cannot be met conveniently, and the whole wind wheel assembly needs to be dismantled when the installation position is adjusted.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning equipment technology, and in particular to a bearing housing mounting structure for duct air conditioners. Background Technology

[0002] Existing 3P duct air conditioners typically have three or four impellers, with a rotating shaft passing through the impellers. The power unit consists of only one motor, with the rotating shaft connected to the motor's output shaft. Usually, one impeller is fixed to one side of the motor, and two impellers are fixed to the other side. To prevent the rotating shaft with the two impellers from being suspended for too long, which would cause the rotating shaft to deflect and easily generate radial vibration, it is necessary to divide the rotating shaft with the two impellers into two sections. The two sections of the rotating shaft are connected by a coupling, and bearings and bearing housings are also installed for support.

[0003] Utility model disclosure CN208870817U discloses a duct air conditioner, including a first rotating shaft, a second rotating shaft, a third rotating shaft, a motor, a coupling, impellers, a housing, and a bearing seat. The axes of the first, second, and third rotating shafts are located on the same straight line. The motor is a two-shaft motor. The first and second rotating shafts are coaxially fixed to the two output shafts of the motor, respectively. The third rotating shaft and the second rotating shaft are fixed together by a coupling. The first, second, and third rotating shafts pass through the central holes of the three impellers and are fixed to the impellers. The impellers are located inside the housing. Two bearings are mounted on the third rotating shaft. The two bearings are located on both sides of the housing on the third rotating shaft. The inner ring of the bearing is fixed on the third rotating shaft. The bearing seat is used to fix the outer ring of the bearing.

[0004] The ducted air conditioning unit has a top plate and a vertically installed central partition. The bearing housing can be fixed to the top plate or the vertically installed central partition. Depending on the user's installation location requirements, if the ducted air conditioning unit is installed against a wall, then only bottom return air can be used. In this case, the bearing housing can only be installed on the top plate; otherwise, it cannot be disassembled for after-sales service in case of a malfunction. If the ducted air conditioning unit is not installed near a wall, then rear return air or bottom return air can be used, and the bearing housing can be installed on the top plate or the central partition. If the user chooses rear return air, then the bearing housing needs to be installed on the central partition.

[0005] However, the existing bearing housing has a square base at the bottom and a fixing hole at the top for fixing the bearing. The square base has fixing holes at the four corners. The square base is fixed to the mounting plate with screws. If the screws are removed, the square base will interfere with the mounting plate on the opposite sides in the direction perpendicular to the central axis of the third rotating shaft. This will prevent the square base from rotating around the central axis of the third rotating shaft. When the user selects the return air direction according to the requirements, the entire impeller assembly needs to be removed before the bracket can be installed in a different position. Utility Model Content

[0006] To address the technical problem that existing technologies cannot easily adapt to different user installation needs and require the removal of the entire impeller assembly when adjusting the installation position, this utility model provides a bearing housing installation structure for duct air conditioners that allows the bearing housing to rotate around the rotation axis after the screws are removed, thus easily adapting to different user installation needs.

[0007] The technical solution adopted by this utility model to solve its technical problem is:

[0008] The duct air conditioner bearing housing mounting structure includes a bearing housing, a bearing, a rotating shaft, and a mounting plate. The bearing has an outer ring and an inner ring. The bearing housing has a bearing mounting hole at the top, where the outer ring is fixedly installed. The inner ring is fixedly fitted onto the rotating shaft. The bearing housing has a base at the bottom, which is fixedly mounted on the mounting plate. The lower surface of the base has a raised structure that contacts the mounting plate. In the area where the raised structure contacts the mounting plate, multiple screw holes are provided on the raised structure, and screws are inserted into these holes. The base and the mounting plate are fixed together by screws. The mounting plate includes a top plate and a middle partition of the duct air conditioner. After removing the screws, the base can rotate around the central axis of the rotating shaft and switch between the top plate and the middle partition of the duct air conditioner.

[0009] Furthermore, the protrusion structure consists of two protrusions arranged in a straight line with their lower surfaces in contact with the mounting plate.

[0010] Furthermore, the mounting plate is provided with bosses, and the raised structure on the lower surface of the base is fixed to the bosses.

[0011] Furthermore, the boss is a protrusion formed on the mounting plate using a stamping process.

[0012] The beneficial effects of this utility model are:

[0013] This solution features a raised structure on the lower surface of the base, which contacts the mounting plate. Multiple screw holes are located on the raised structure within the contact area, allowing the base and mounting plate to be secured with screws. After removing the screws, the base can rotate around its central axis. Users can adjust the bearing housing to fix the base to the top plate or middle partition of the duct unit according to different return air requirements, without removing the impeller assembly, thus easily adjusting the bearing housing's installation position. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the bearing housing of this utility model;

[0015] Figure 2 This is a structural schematic diagram of the bearing housing of this utility model from another angle;

[0016] Figure 3 This is a schematic diagram of the bearing housing installed on the top plate of the duct unit;

[0017] Figure 4 This is a structural diagram omitting the top plate of the air duct unit;

[0018] Figure 5 yes Figure 4 A magnified view of part A in the image;

[0019] Figure 6 It refers to two states where the bearing housing is installed on the top plate of the duct unit and the middle partition of the duct unit;

[0020] The markings in the diagram are as follows: 1-bearing housing, 11-bearing mounting hole, 12-base, 2-bearing, 3-rotating shaft, 4-protruding structure, 5-air duct unit top plate, 6-air duct unit middle partition, 7-protrusion. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the present invention will be further described below with reference to the accompanying drawings.

[0022] First, it should be stated that the technical solutions of the embodiments of this application are clearly and completely described. The described embodiments are only some of the embodiments of this application, and not a limitation of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0023] In the description of this utility model, it should be understood that the terms "first", "second", "upper", "lower", "left", "right", "inner", "outer", "axial" or "radial" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and are not intended to indicate or imply that the device or element referred to must have a specific orientation structure and operation. Therefore, they should not be construed as limitations on this utility model.

[0024] It should be noted that, in this utility model, unless otherwise explicitly specified and limited, the terms "connection" and "fixation," etc., should be interpreted broadly. For example, "fixation" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Reference Figures 1 to 6 This utility model provides a bearing housing mounting structure for a duct machine.

[0026] like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown in the embodiment of this solution, the duct machine bearing housing mounting structure includes a bearing housing 1, a bearing 2, a rotating shaft 3, and a mounting plate. The bearing 2 has an outer ring and an inner ring. The bearing housing 1 has a bearing mounting hole 11 at its top. The outer ring of the bearing 2 is fixedly installed in the bearing mounting hole 11, and the inner ring of the bearing 2 is fixedly sleeved on the rotating shaft 3. The bearing housing 1 has a base 12 at its bottom, which is fixedly mounted on the mounting plate. The lower surface of the base 12 is provided with a protruding structure 4, which contacts the mounting plate. In the area where the protruding structure 4 contacts the mounting plate, multiple screw holes are provided on the protruding structure 4, and screws are inserted into the screw holes. The base 12 and the mounting plate are fixed by screws. The mounting plate includes a duct machine top plate 5 and a duct machine middle partition plate 6. After removing the screws, the base 12 can rotate around the central axis of the rotating shaft 3 and switch between the duct machine top plate 5 and the duct machine middle partition plate 6.

[0027] like Figure 6 As shown, the mounting plate here includes the duct unit top plate 5 and the duct unit middle partition plate 6. Whether it is installed on the duct unit top plate 5 or the duct unit middle partition plate 6 depends on the user's installation location and return air requirements. Depending on the user's installation location requirements, if the duct unit is installed against a wall, then only bottom return air can be used, and the bearing housing 1 can only be installed on the duct unit top plate 5; otherwise, it cannot be disassembled for after-sales service in case of a malfunction. If the duct unit is not installed near a wall, then rear return air or bottom return air can be used, and the bearing housing 1 can be installed on the duct unit top plate 5 or the duct unit middle partition plate 6. If the user chooses rear return air, then the bearing housing 1 needs to be installed on the duct unit middle partition plate 6.

[0028] like Figure 6 As shown in the figure, the bearing housing 1 is installed in two states: on the top plate 5 of the duct unit and on the middle partition 6 of the duct unit. After removing the screws, the base 12 can rotate around the central axis of the rotating shaft 3, switching between the two states to meet the user's needs for different return air positions.

[0029] Regarding the contact between the protruding structure 4 and the mounting plate as referred to in this solution, since line contact cannot meet the support requirements, the protruding structure 4 and the mounting plate should have a smaller area of ​​surface contact. After removing the screws, a smaller force can be used to push the base 12 to achieve the rotation of the base 12 around the central axis of the rotation axis 3. This avoids interference between the base 12 and the mounting plate due to a large area of ​​contact, which would prevent the base 12 from rotating around the central axis of the rotation axis 3.

[0030] The number of screw holes should be two or more. The screw holes penetrate the upper and lower surfaces of the base 12 and are located in the area where the protruding structure 4 contacts the mounting plate. Screws are inserted into the screw holes, and the base 12 is fixed to the mounting plate by screws.

[0031] For bearing 2, in addition to fixing the inner ring of bearing 2 onto the rotating shaft 3, the inner ring of bearing 2 can also be fitted onto the coupling.

[0032] like Figure 4 and Figure 5 As shown, the rotating shaft 3 passes through the impeller and is fixed to it. The power unit is equipped with a motor, which is fixed to the mounting plate by a motor bracket. The rotating shaft 3 is connected to the output shaft of the motor. One impeller is fixed on one side of the motor, and two impellers are fixed on the other side of the motor. In order to avoid the rotating shaft 3, which fixes the two impellers, being suspended for too long, the rotating shaft 3 will have a certain deflection, which will make the rotating shaft 3 prone to radial vibration. Therefore, the rotating shaft 3 that fixes the two impellers needs to be divided into two sections. The two sections of the rotating shaft 3 are connected by a coupling, and bearings 2 and bearing seats 1 are also provided for support.

[0033] like Figure 1 As shown, specifically, the raised structure 4 consists of two raised sections arranged in a straight line, with the lower surface of each raised section contacting the mounting plate. Each raised section has two screw holes, which should be located within the contact area between the raised section and the mounting plate. A total of four screw holes are provided on the two raised sections. When installing on the top plate 5 or the middle partition 6 of the duct unit, any two screw holes can be used, or three or four can be used. The specific choice should be made according to the actual working conditions on site.

[0034] like Figure 3 and Figure 6 As shown, a boss 7 is provided on the mounting plate, and the raised structure 4 on the lower surface of the base 12 is fixed on the boss 7. The boss 7 is provided to facilitate installation and disassembly, and to strengthen the fixation. Its function is similar to that of a reinforcing rib. Specifically, the boss 7 is a protrusion formed on the mounting plate by a stamping process. Alternatively, the boss 7 can be formed by directly adding material to the mounting plate.

Claims

1. A bearing housing mounting structure for a duct air conditioner, comprising a bearing housing (1), a bearing (2), a rotating shaft (3), and a mounting plate, wherein the bearing (2) has an outer ring and an inner ring, the bearing housing (1) has a bearing mounting hole (11) at the top, the outer ring of the bearing (2) is fixedly installed in the bearing mounting hole (11), the inner ring of the bearing (2) is fixedly sleeved on the rotating shaft (3), and the bearing housing (1) has a base (12) at the bottom, the base (12) being fixedly mounted on the mounting plate, characterized in that: The lower surface of the base (12) is provided with a protruding structure (4), which contacts the mounting plate. In the area where the protruding structure (4) contacts the mounting plate, multiple screw holes are provided on the protruding structure (4), and screws are inserted into the screw holes. The base (12) and the mounting plate are fixed by screws. The mounting plate includes the top plate (5) of the air duct machine and the middle partition plate (6) of the air duct machine. After the screws are removed, the base (12) can rotate around the central axis of the rotation shaft (3) and switch between the top plate (5) and the middle partition plate (6) of the air duct machine.

2. The duct machine bearing housing mounting structure as described in claim 1, characterized in that: The protrusion structure (4) consists of two protrusions arranged in a straight line with their lower surfaces in contact with the mounting plate.

3. The duct machine bearing housing mounting structure as described in claim 1 or 2, characterized in that: The mounting plate is provided with a boss (7), and the raised structure (4) on the lower surface of the base (12) is fixed on the boss (7).

4. The duct machine bearing housing mounting structure as described in claim 3, characterized in that: The boss (7) is a protrusion formed on the mounting plate by stamping.

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