CN113775556A

CN113775556A - Rotor assembly, delivery pump, indoor unit, outdoor unit and air treatment equipment

Info

Publication number: CN113775556A
Application number: CN202110962395.3A
Authority: CN
Inventors: 朱华; 梁卓文; 李松; 黄招彬; 李超雄; 周宏明; 张海强; 韩秋菊
Original assignee: GD Midea Air Conditioning Equipment Co Ltd; Foshan Shunde Midea Electric Science and Technology Co Ltd
Current assignee: GD Midea Air Conditioning Equipment Co Ltd; Foshan Shunde Midea Electric Science and Technology Co Ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2021-12-10
Anticipated expiration: 2041-08-20
Also published as: CN113775556B

Abstract

The embodiment of the application provides a rotor assembly, delivery pump, indoor set, off-premises station and air treatment equipment belongs to air treatment technical field, and rotor assembly includes pivot and first mount pad subassembly. The pivot is located to first mount pad subassembly cover, and first mount pad subassembly sets up with the pivot interval, and first mount pad subassembly encloses with the pivot and establishes into the installing zone and be located the preset clearance of installing zone below, and first mount pad subassembly is formed with the oil storage groove that communicates with the preset clearance, and the oil storage groove is used for the fluid of restriction oil storage groove to move down, and the fluid in the oil storage groove moves down with the fluid of restriction oil storage groove in with the at least partial fluid contact in the preset clearance, and it is sealed through fluid to predetermine the clearance. The preset clearance is sealed by oil basically kept in the preset clearance, and the corrosion degree of parts in the installation area is reduced.

Description

Rotor assembly, delivery pump, indoor unit, outdoor unit and air treatment equipment

Technical Field

The application relates to the technical field of air treatment, in particular to a rotor assembly, a conveying pump, an indoor unit, an outdoor unit and air treatment equipment.

Background

In the related art, the delivery pump mainly works in a non-corrosive environment and cannot corrode the delivery pump, for example, the delivery pump is an air-conditioning water pump which is mainly used in a water environment and has no corrosive effect on the air-conditioning water pump. If the operating environment of the transfer pump changes, such as the transfer pump operates in an acid or alkaline environment, the transfer pump may corrode.

Disclosure of Invention

In view of the above, it is desirable to provide a rotor assembly, a transfer pump, an indoor unit, an outdoor unit and an air treatment apparatus, which can reduce the corrosion on the transfer pump.

To achieve the above object, an aspect of the present invention provides a rotor assembly, including:

a rotating shaft; and

first mount pad subassembly, the cover is located the pivot, first mount pad subassembly with the pivot interval sets up, first mount pad subassembly with the pivot is enclosed to establish the installing zone and is located the predetermined clearance of installing zone below, first mount pad subassembly be formed with the oil storage groove of predetermineeing the clearance intercommunication, the oil storage groove is used for the restriction oil in the oil storage groove moves down, oil in the oil storage groove with predetermine at least partial fluid contact in the clearance in order to restrict oil in the predetermined clearance moves down, it passes through to predetermine the clearance oil is sealed.

In one embodiment, the size of the preset gap along the radial direction of the rotating shaft is not greater than 0.25 mm.

In one embodiment, the contact area of the oil in the preset gap is 20.4 × 10-6m2, the density of the oil is ρ is 0.75 × 103Kg/m3, the dimension of the preset gap along the radial direction of the rotating shaft is 0.25mm, the sum of the mass of the oil in the preset gap and the mass of the oil in the oil storage tank is 4.2 × 10-3g, and the kinematic viscosity of the oil is not less than 1.096 × 103m 2/s.

In one embodiment, the first mount assembly includes:

the first seat body is sleeved on the rotating shaft, and the first seat body and the rotating shaft are arranged at intervals; and

first damping device, the cover is located the pivot, first damping device with the pivot interval sets up, first damping device installs in first pedestal, first damping device with first pedestal encloses to establish into the oil storage groove, first pedestal first damping device with the pivot encloses to establish into predetermine the clearance, first damping device with the pivot encloses to establish into the installing zone.

In one embodiment, the rotating shaft is formed with a thread, and the rotation direction of the thread enables the rotating shaft to drive oil in the preset gap to move upwards in the rotating process.

In one embodiment, when the rotating shaft stops rotating, a preset gap between the oil and the installation area contains air; when the rotating shaft rotates, oil in the preset gap moves upwards to discharge air between the oil and the installation area from the preset gap to the installation area.

In one embodiment, the rotor assembly further comprises a sump pan located below the first mount assembly to receive downwardly dripping oil.

In one embodiment, the rotor assembly further includes a bearing, the bearing is sleeved on the rotating shaft, and the bearing is accommodated in the mounting region.

In one embodiment, the rotor assembly further includes an impeller mounted on the rotating shaft, the impeller rotates along with the rotating shaft, and the impeller is located below the first mounting seat assembly.

A second aspect of the embodiments of the present application provides a delivery pump, including:

a housing; and

the rotor assembly of any one of the above is installed in the housing, and the rotor assembly further comprises an impeller installed on the rotating shaft, the impeller rotates along with the rotating shaft, and the impeller is located below the first mounting base component.

A third aspect of the embodiments of the present application provides an indoor unit, including:

the indoor unit main body is provided with a first air outlet duct;

the first air flow filtering device is positioned in the first air outlet duct; and

the delivery pump of any one of the above is installed in the indoor unit main body, and the delivery pump delivers the sterilizing solution to the first air flow filtering device to sterilize the air flow passing through the first air flow filtering device.

A fourth aspect of the embodiments of the present application provides an outdoor unit, including:

the outdoor unit main body is provided with a second air outlet duct;

the second air flow filtering device is positioned in the second air outlet duct; and

the delivery pump of any one of the above is installed in the outdoor unit main body, and the delivery pump delivers the sterilizing solution to the second airflow filter device to sterilize the airflow passing through the second airflow filter device.

A fifth aspect of embodiments of the present application provides an air treatment apparatus, including:

the equipment main body is provided with a third air outlet duct;

the third air flow filtering device is positioned in the third air outlet duct; and

the delivery pump of any one of the above is installed in the apparatus main body, and the delivery pump delivers the sterilizing solution to the third airflow filter device to sterilize the airflow passing through the third airflow filter device.

In the rotor assembly of the embodiment of the application, the oil generally has a certain viscosity, the oil storage tank limits the oil in the oil storage tank to move downwards, the oil in the oil storage tank is contacted with at least part of the oil in the preset gap, when the oil in the preset gap flows downwards under the action of gravity, the oil limited to move downwards in the oil storage tank interacts with the oil moving downwards in the preset gap to form internal friction force, thereby limiting the oil in the preset gap from moving downwards, keeping the oil in the preset gap as much as possible in the preset gap, reducing the possibility that the oil in the preset gap leaks out of the preset gap, sealing the preset gap by the oil kept in the preset gap, preventing corrosive gas from flowing to the mounting area through the preset gap between the first mounting seat component and the rotating shaft, causing corrosion to the components in the mounting area, thereby reducing the extent to which the components in the mounting area are corroded.

Drawings

Fig. 1 is a schematic structural view of a transfer pump for an air conditioner in the related art;

FIG. 2 is an exploded view of a transfer pump according to an embodiment of the present application;

FIG. 3 is an assembly view of the oil pan, the first mount assembly, the spindle, and the bearing of the embodiment of the present application;

FIG. 4 is an enlarged view of the oil in the stopped state of the rotating shaft at position A in FIG. 3;

FIG. 5 is an enlarged view of the position A in FIG. 3, showing the oil state in the rotation state of the rotary shaft;

FIG. 6 is an enlarged view of FIG. 3 at location A showing the rotor assembly without oil added thereto;

fig. 7 is a schematic structural view of the first seat according to the embodiment of the present application;

FIG. 8 is a schematic structural view of an oil pan according to an embodiment of the present application;

FIG. 9 is a schematic structural diagram of a rotating shaft according to an embodiment of the present application;

fig. 10 is an assembly view of a first mount assembly, a second mount assembly for receiving a bearing, a motor, a shaft, an impeller, and a housing according to an embodiment of the present application.

Description of reference numerals: a rotor assembly 100; a rotating shaft 1; the thread 11; a first mount assembly 2; an oil reservoir 21; a first seat 22; the first accommodation chamber 221; a first vibration damping device 23; a mounting area 3; presetting a gap 4; an oil pan 5; the second accommodation chamber 51; a bearing 6; an impeller 7; a housing 200; an inlet 201; an outlet 202; a pump body 203; a transition piece 204; a motor case 205; a pump cover 206; a first mounting cavity 300; a second mounting cavity 400; a motor 500; a motor stator 501; a motor rotor 502; a corrosive gas 600; oil 700; the preset dimension D.

Detailed Description

It should be noted that, in the present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application.

In the description of the embodiments of the present application, "upper", "lower", "top", "bottom", orientation or positional relationship is based on the orientation or positional relationship shown in fig. 3, it being understood that these orientation terms are merely for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered limiting of the present application. Referring to fig. 3, the up-down direction is a direction indicated by an arrow R1 in the drawing.

Before describing the embodiments of the present application, it is necessary to analyze the cause of corrosion of the delivery pump in the related art, and the technical solution of the embodiments of the present application is obtained through reasonable analysis.

In the related art, referring to fig. 1, a transfer pump includes a housing, a rotating shaft, an impeller, a first mounting seat assembly, and a bearing. Pivot, impeller, first mount pad subassembly are all installed in the casing, and the bearing is installed in first mount pad subassembly, and the pivot is located in order to support the pivot to the bearing housing, passes through the in-process of corrosive substance such as impeller transport acid or alkali at the delivery pump, and the gas that can generate corrosivity is inevitable, upwards through clearance and bearing contact between first mount pad subassembly and the pivot along the axial of pivot, causes the corruption to the bearing. For example, use sodium hypochlorite or hypochlorous acid solution as the antiseptic solution, utilize the delivery pump with during the antiseptic solution pump feed the filter screen in air conditioner wind channel, disinfect the air that flows through the filter screen to make the air conditioner blow comparatively clean health to indoor air, be favorable to user's health. The sodium hypochlorite solution is weakly alkaline liquid, the hypochlorous acid solution is acidic liquid, both have certain corrosivity, in-process at the delivery pump through impeller pumping antiseptic solution, can form the gas that has certain corrosivity, these corrosive gases float along the axial of pivot, permeate bearing position department and bearing contact through the clearance between first mount pad subassembly and the pivot, in the correlation technique, the bearing of the delivery pump of idle call usually is the oiliness bearing who uses copper as the owner, this type of bearing can cause certain degree corrosion after contacting corrosive gas.

In view of this, an embodiment of the present disclosure provides a rotor assembly 100, please refer to fig. 2 to 6, in which the rotor assembly 100 includes a rotating shaft 1 and a first mount assembly 2, the first mount assembly 2 is sleeved on the rotating shaft 1, the first mount assembly 2 is spaced from the rotating shaft 1, the first mount assembly 2 and the rotating shaft 1 enclose an installation area 3 and a preset gap 4 located below the installation area 3, an oil storage tank 21 communicated with the preset gap 4 is formed in the first mount assembly 2, an oil 700 in the oil storage tank 21 contacts at least a portion of the oil 700 in the preset gap 4 to limit downward movement of the oil 700 in the preset gap 4, and the preset gap 4 is sealed by the oil 700. In such a structure, the oil 700 generally has a certain viscosity, the oil storage tank 21 limits the oil 700 in the oil storage tank 21 to move downwards, the oil 700 in the oil storage tank 21 contacts with at least part of the oil 700 in the preset gap 4, when the oil 700 in the preset gap 4 flows downwards under the action of gravity, the oil 700 limited to move downwards in the oil storage tank 21 interacts with the oil 700 limited to move downwards in the preset gap 4, so that the oil 700 forms an internal friction force, the oil 700 in the preset gap 4 is limited to move downwards, the oil 700 in the preset gap 4 can be kept in the preset gap 4 as far as possible, the possibility that the oil 700 in the preset gap 4 leaks from the preset gap 4 is reduced, the oil 700 kept in the preset gap 4 can seal the preset gap 4, corrosive gas is prevented from flowing to the mounting area 3 through the preset gap 4 between the first mounting block 2 and the rotating shaft 1, causing corrosion to the parts in the mount area 3, thereby reducing the degree to which the parts in the mount area 3 are corroded.

It can be understood that, not only the oil 700 in the oil storage tank 21 will form resistance to the oil 700 in the preset gap 4 to limit dripping of the oil 700 in the preset gap 4, but also the wall surface of the rotating shaft 1 contacting the oil 700 and the wall surface of the first mounting seat contacting the oil 700 have a certain blocking effect on the oil 700 in the preset gap 4, so as to limit downward movement of the oil 700 in the preset gap 4.

It can be understood that the preset gap is sealed by the oil 700, so that the friction loss between parts is small, the sealing reliability is high, and the noise is low.

In one embodiment, referring to fig. 2 to 6, the predetermined gap 4 and the oil sump 21 are both located below the mounting region 3.

In one embodiment, referring to fig. 2 to 6, the oil sump 21 opens radially toward the rotating shaft 1.

In an embodiment, referring to fig. 2 to 6, the rotor assembly 100 further includes a bearing 6, the bearing 6 is sleeved on the rotating shaft 1, and the bearing 6 is accommodated in the mounting region 3. Structural style like this, hold bearing 6 in the installing zone 3, bearing 6 is used for supporting pivot 1 for pivot 1 can rotate comparatively smoothly, owing to predetermine clearance 4 and seal through fluid 700, corrosive gas 600 is difficult to get into installing zone 3 through the clearance 4 of predetermineeing between first mount pad subassembly 2 and the pivot 1, has reduced the degree that bearing 6 in the installing zone 3 was corroded.

In one embodiment, the bearing 6 is an oil bearing 6. According to the structure form, although the oil-retaining bearing 6 is not corrosion-resistant, the degree of corrosion of the bearing 6 is reduced due to the fact that the preset gap 4 is sealed through the oil 700, the oil-retaining bearing 6 is cheap, and the cost of equipment can be reduced to a certain extent.

In one embodiment, the material of the oil-retaining bearing 6 is mainly copper. Structural style like this, the material is mainly the oiliness bearing 6 price of copper lower, can reduce the cost of equipment to a certain extent, owing to predetermine clearance 4 and sealed through fluid 700, the material is mainly the oiliness bearing 6 of copper and is corroded the possibility lower, has reduced the degree that bearing 6 is corroded.

It will be appreciated that the bearing 6 is not limited to the above type and that other configurations of the bearing 6 may be used in the embodiments of the present application.

In one embodiment, referring to fig. 5, the dimension of the predetermined gap 4 along the radial direction of the rotating shaft 1 is not greater than 0.25 mm. Like this structural style, the clearance is less, and the gravity of fluid 700 is less, and the area of contact of fluid 700 is almost unchangeable, and the resistance of fluid 700 whereabouts is almost unchangeable, has reduced the fluid 700 in the predetermined clearance 4 and has flowed out the possibility of predetermineeing clearance 4 downwards under the action of gravity.

Illustratively, referring to fig. 5, a dimension of the predetermined gap 4 along the radial direction of the rotating shaft 1 is a predetermined dimension D, and the predetermined dimension D is not greater than 0.25.

In one embodiment, the kinematic viscosity of the oil 700 may be required to satisfy a certain condition to better limit the downward movement of the oil 700 under the action of gravity. Specifically, v is greater than or equal to m/(ρ × a), where v is the kinematic viscosity of the oil 700, m is the sum of the mass of the oil 700 in the preset gap 4 and the mass of the oil 700 in the oil storage tank 21, ρ is the density of the oil 700, and a is the contact area of the oil 700 in the preset gap 4.

It should be noted that "+" in the above formulas refers to a product in mathematical calculation, not a convolution.

In one embodiment, the contact area of the oil 700 in the predetermined gap 4 is 20.4 × 10 ═ a^-6m²The density of the oil 700 is ρ 0.75 × 10³Kg/m³The predetermined gap 4 has a dimension of 0.25mm in the radial direction of the rotating shaft 1, and the sum of the mass of the oil 700 in the predetermined gap 4 and the mass of the oil 700 in the oil reservoir 21 is 4.2 × 10^-3g, the kinematic viscosity of the oil 700 is not less than 1.096 × 10 according to the calculation formula of the kinematic viscosity³m²/s。

In one embodiment, the kinematic viscosity of the oil 700 is not less than 1500m²/s。

In one embodiment, the kinematic viscosity of the oil 700 may be 1100m²/s、1200m²/s、1300m²/s、1400m²/s、1500m²/s、1600m²/s、1700m²S or 1800m²/s。

In an embodiment, referring to fig. 4 to 7, the first mounting base assembly 2 includes a first base 22 and a first vibration damping device 23. The first base 22 is sleeved on the rotating shaft 1, and the first base 22 and the rotating shaft 1 are disposed at intervals. The first vibration damping device 23 is sleeved on the rotating shaft 1, the first vibration damping device 23 and the rotating shaft 1 are arranged at intervals, the first vibration damping device 23 is installed in the first seat 22, the first vibration damping device 23 and the first seat 22 are enclosed to form an oil storage tank 21, the first seat 22, the first vibration damping device 23 and the rotating shaft 1 are enclosed to form a preset gap 4, and the first vibration damping device 23 and the rotating shaft 1 are enclosed to form an installation area 3. In such a structure, the first vibration damping device 23 damps vibration of the rotating shaft 1, and the vibration of the rotating shaft 1 in the rotating process is relieved and transmitted to the first mounting seat assembly 2.

In one embodiment, referring to fig. 4 to 7, the oil storage tank 21 is located below the first vibration damping device 23. Therefore, in the maintenance process of the rotor assembly 100, the oil storage groove 21 can be better cleaned by detaching the oil storage groove 21 from the first seat 22, and the first vibration damping device 23 and the first seat 22 do not need to be detached from the rotating shaft 1, so that the maintenance of the rotor assembly 100 is more convenient.

In an embodiment, referring to fig. 7, the first seat 22 is formed with a first accommodating cavity 221, and the first vibration damping device 23 is installed in the first accommodating cavity 221. The oil sump 21 is located below the first receiving chamber 221.

In one embodiment, referring to fig. 4 to 6 and fig. 9, a thread 11 is formed on the rotating shaft 1, and the rotating direction of the thread 11 enables the rotating shaft 1 to drive the oil 700 in the predetermined gap 4 to move upwards during the rotating process. Structural style like this, the setting of screw thread 11 has increased the area of contact of predetermineeing fluid 700 in clearance 4 on the one hand, makes the resistance increase of fluid 700 whereabouts, is favorable to preventing to predetermine the downward drippage of fluid 700 in clearance 4. On the other hand, when the rotating shaft 1 rotates, the rotating shaft 1 can drive the oil 700 in the preset gap 4 to move upwards due to the rotation direction of the threads 11, and the oil 700 in the preset gap 4 is prevented from dripping downwards.

It can be understood that the more the number of turns of the thread 11, the larger the contact area of the oil 700 in the preset clearance 4, and the resistance to the falling of the oil 700 increases. In one embodiment, referring to fig. 9, the number of turns of the thread 11 may be 8.

In one embodiment, referring to fig. 5, in the rotating state of the rotating shaft, the oil moves upward under the thrust force formed by the threads of the rotating shaft. The rotating shaft rotates counterclockwise when viewed from the lower end of the rotating shaft upwards.

In one embodiment, referring to fig. 4-6, the threads 11 of the shaft 1 are at least partially in contact with the oil 700 in the predetermined gap 4.

In one embodiment, referring to fig. 4-6, the thread 11 on the shaft 1 is at least partially located at the same height as the opening of the oil reservoir 21.

In one embodiment, referring to fig. 4 and 6, a thread 11 is formed on the rotating shaft 1, and the rotating direction of the thread 11 enables the rotating shaft 1 to drive the oil 700 in the predetermined gap 4 to move upwards during the rotation process. When the rotation of the rotary shaft 1 is stopped, a predetermined gap 4 between the oil 700 and the installation area 3 contains air. When the rotating shaft 1 rotates, the oil 700 in the predetermined gap 4 moves upward to discharge the air between the oil 700 and the installation area 3 from the predetermined gap 4 to the installation area 3. Structural style like this, the air can be discharged to installing zone 3, reduced 1 rotation in-process of pivot and predetermine the resistance that fluid 700 in clearance 4 moved up, predetermine in the clearance 4 fluid 700 continuously move up can follow air escape way and get into installing zone 3, the pressure that fluid 700 in clearance 4 upwards moved is predetermine in the rotation drive of pivot 1 is less, the evaporation loss of fluid 700 at the friction in-process that generates heat has been reduced, be favorable to increasing rotor assembly 100's life.

In one embodiment, when the rotation shaft 1 stops rotating, the oil 700 in the predetermined gap 4 contacts the bearing 6.

In one embodiment, the bearing 6 may be a rolling bearing 6.

In one embodiment, the rotating shaft 1 is formed with a thread 11, the parts in the installation region 3 can seal the air between the installation region 3 and the oil 700 in the predetermined gap 4 in a closed space, and the rotating shaft 1 can apply an upward thrust to the oil 700.

In one embodiment, referring to fig. 4 and 6, a thread 11 is formed on the rotating shaft 1, and the rotating direction of the thread 11 enables the rotating shaft 1 to drive the oil 700 in the predetermined gap 4 to move upwards during the rotation process. During the rotation of the rotating shaft 1, the oil 700 in the preset gap 4 is driven by the rotating shaft 1 to move upwards and partially discharge into the installation area 3, so as to lubricate the parts in the installation area 3.

In an embodiment, referring to fig. 4 to 6, the sliding bearing 6 is installed in the installation area 3, and it can be understood that a bush of the sliding bearing 6 slides and rubs with the rotating shaft 1 during the rotation of the rotating shaft 1, a certain gap exists between the sliding bearing 6 and the rotating shaft 1, and air between the oil 700 in the preset gap 4 and the installation area 3 is exhausted from the preset gap 4 to the gap between the sliding bearing 6 and the rotating shaft 1 and exhausted to the external environment. The oil 700 in the predetermined gap 4 may also move up to the gap between the sliding bearing 6 and the rotating shaft 1 to lubricate the bearing 6 and the rotating shaft 1.

It can be understood that when the rotation shaft 1 stops rotating, the oil 700 flowing into the installation cavity can return to the preset gap 4 under the action of gravity, and the oil 700 in the preset gap 4 has little or no loss.

It is understood that although the oil 700 in the preset clearance 4 is maintained in the preset clearance 4 as much as possible by the fluid resistance, the lower end of the preset clearance 4 is not completely closed, and a small amount of the oil 700 may be discharged from the lower end of the preset clearance 4 during a long period of use. In view of this, in one embodiment, referring to fig. 3, the rotor assembly 100 further includes a sump pan 5 located below the first mount assembly 2 to receive oil 700 dripping downward. Structural style like this, can collect predetermine the interior discharge drippage fluid 700 of clearance 4 better, prevent that fluid 700 from scattering.

In one embodiment, referring to fig. 8, the oil pan 5 is formed with a second receiving chamber 51, and the second receiving chamber 51 is used for receiving the oil 700 dripping downward.

In one embodiment, referring to fig. 3 and 8, the oil pan 5 is formed with a connection portion located below the second accommodation chamber 51. The connection portion is hermetically connected with the rotation shaft 1 to prevent the oil 700 in the second accommodation chamber 51 from leaking between the connection portion and the rotation shaft 1.

In one embodiment, the oil pan 5 is made of a flexible material. Such as rubber.

In one embodiment, the oil pan 5 may be made of a rigid material

In one embodiment, referring to fig. 2, the rotor assembly 100 further includes an impeller 7 mounted on the rotating shaft 1, the impeller 7 rotates along with the rotating shaft 1, and the impeller 7 is located below the first mounting base assembly 2. With the structure, the impeller 7 rotating along with the rotating shaft 1 can pump materials or serve as a stirring structure to stir the materials needing to be stirred.

In one embodiment, referring to fig. 2 and 10, the impeller 7 is located at the lower end of the shaft 1.

In one embodiment, referring to fig. 2-10, the rotor assembly 100 may be used in a transfer pump. Illustratively, the rotor assembly 100 may be applied to a water pump.

It will be appreciated that the rotor assembly 100 may be applied not only to a transfer pump, but also to a mixing apparatus for mixing materials having a certain corrosiveness. The rotor assembly 100 is still able to reduce the degree of corrosion of the components in the first mounting seat. Illustratively, the material being mixed is below the first mount assembly 2.

It will be appreciated that the rotor assembly 100 may also be used in other applications where it is desired to rotate the shaft 1 in a corrosive environment, primarily below the first mounting assembly 2, where corrosive materials can migrate upwards. Under such operating conditions, the rotor assembly 100 of the embodiment of the present application can reduce the degree of corrosion of the components in the first mount base assembly 2 to some extent.

Referring to fig. 2 and 3, the delivery pump includes a housing 200 and the rotor assembly 100 of any one of the above, the rotor assembly 100 is installed in the housing 200, the rotor assembly 100 further includes an impeller 7 installed on the rotating shaft 1, the impeller 7 rotates along with the rotating shaft 1, and the impeller 7 is located below the first mounting base assembly 2. In this way, the rotating shaft 1 in the rotor assembly 100 rotates, and the impeller 7 rotates along with the rotating shaft 1 to make the delivery pump work and pump corresponding corrosive materials, such as disinfectant. Since the predetermined gap 4 is sealed by the oil 700, the degree of corrosion of the parts in the first mount base assembly 2 can be reduced.

In one embodiment, when the rotating shaft 1 of the transfer pump drives the impeller 7 to rotate so as to pump the material, the rotation direction of the thread 11 enables the rotating shaft 1 to drive the oil 700 in the preset gap 4 to move upwards during the rotation process.

In one embodiment, referring to fig. 2, the housing 200 is formed with an inlet 201 at the bottom of the housing 200 and an outlet 202 at the side of the housing 200, and when the impeller 7 rotates, the pumped material enters the housing 200 of the transfer pump through the inlet 201 and is pumped out of the housing 200 through the outlet 202.

In an embodiment, referring to fig. 2, fig. 3 and fig. 10, the first mounting base assembly 2 and the housing 200 enclose a first mounting cavity 300 and a second mounting cavity 400, the delivery pump further includes a motor 500 located in the second mounting cavity 400, and the motor 500 is used for driving the rotating shaft 1 to rotate; the rotor assembly 100 further includes a bearing 6 and a second mounting base assembly, the second mounting base assembly is located at one end of the motor 500 departing from the first mounting base assembly 2, the rotating shaft 1 is sleeved with the bearing 6, and the bearing 6 is installed in the first mounting base assembly 2 and the second mounting base assembly. In this configuration, since the predetermined gap 4 is sealed by the fluid, it is difficult for the corrosive gas 600 to flow to the mount section 3 of the first mount base assembly 2 through the predetermined gap 4, and to flow from the mount section 3 to the second mount base assembly in the second mount chamber 400 and the second mount base assembly in the second mount chamber 400. Therefore, the bearings 6 in the first mount assembly 2 and the second mount assembly are less affected by the corrosive gas 600, and the degree of corrosion of the bearings 6 in the first mount assembly 2 and the second mount assembly can be reduced. The first and

second mounting assemblies

2 and 2 are respectively located at both ends of the motor 500 so that the bearings 6 in the first and

second mounting assemblies

2 and 2 can relatively smoothly support the rotating shaft 1.

In one embodiment, the second mount assembly includes a second vibration damping device and a second mount body, and the second vibration damping device is mounted on the second mount body.

In an embodiment, referring to fig. 2, the motor 500 includes a motor stator 501 and a motor rotor 502 located in the second mounting cavity 400, and the motor rotor 502 is sleeved on the rotating shaft 1.

In one embodiment, the motor rotor 502 is a permanent magnet.

In one embodiment, referring to fig. 2, the housing 200 includes a pump body 203, a transition piece 204, a motor housing 205, and a pump cover 206. The pump body 203, the transition piece 204 and the first mount assembly 2 enclose a first mount cavity 300, and the first mount assembly 2, the motor casing 205 and the pump cover 206 enclose a second mount cavity 400.

In one embodiment, transition piece 204 is shell-shaped.

In one embodiment, referring to fig. 2, the impeller 7 is at least partially located within a pump body 203, and the outlet 202 and inlet 201 are formed in the pump body 203.

The embodiment of the application provides an indoor unit, including indoor unit main part, first gas filter equipment and the delivery pump of any kind above. The indoor unit main body is formed with a first air outlet duct. The first air flow filtering device is positioned in the first air outlet duct, the delivery pump is installed on the indoor unit main body, and the delivery pump delivers the disinfection solution to the first air flow filtering device so as to disinfect the air flow passing through the first air flow filtering device. Structural style like this, the delivery pump is installed in indoor unit main part, carries the antiseptic solution to first air current filter equipment through the delivery pump, and the air current that has the antiseptic solution when the air-out wind channel is through the first air current filter equipment that has the antiseptic solution, and the air current in air-out wind channel will be disinfected by the antiseptic solution, and the air current after the antiseptic solution disinfection flows out to indoor from air-out wind channel for the air-dry clean health that the air conditioner blew off is favorable to the user healthy.

In one embodiment, the first air flow filtration device may be a screen.

In one embodiment, the air treatment device comprises an outdoor unit and the indoor unit with the delivery pump, which are connected with each other.

The embodiment of the application further provides an outdoor unit, including off-premises station main part, second air current filter equipment and delivery pump, the off-premises station main part is formed with second air-out wind channel, and second air current filter equipment is located second air-out wind channel, and the delivery pump is installed in the off-premises station main part, and the delivery pump carries disinfectant solution to second air current filter equipment to disinfect to the air current that flows through second air current filter equipment. With the structure, the air flow flowing out from the air outlet duct of the outdoor unit is clean and sanitary.

In one embodiment, the air treatment device comprises an indoor unit and the outdoor unit with the delivery pump, which are connected with each other.

In one embodiment, the second airflow filtering device is a filter screen.

The embodiment of the application also provides air treatment equipment, which comprises an equipment main body, a third airflow filtering device and a delivery pump. The equipment main part is formed with the third air-out wind channel. The third airflow filtering and transporting device is positioned in the third air outlet duct. The delivery pump is arranged on the equipment main body and delivers the disinfection solution to the third airflow filtering device so as to disinfect the airflow flowing through the third airflow filtering device.

In one embodiment, the third airflow filtering device may be a screen.

In one embodiment, the air treatment device is a split-type air conditioner, such as a wall-mounted unit, a cabinet unit, a ducted unit, or a central air conditioner. The air treatment apparatus includes an indoor unit and an outdoor unit connected to each other.

In one embodiment, the delivery pump is installed in the indoor unit.

In one embodiment, the transfer pump is installed in the outdoor unit.

In one embodiment, the air treatment device is an integrated air conditioner, and the integrated air conditioner does not distinguish an indoor unit from an outdoor unit. The air treatment device may be a window machine, for example. The delivery pump is mounted on the main body of the integrated air conditioner.

The various embodiments/implementations provided herein may be combined with each other without contradiction.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A rotor assembly, comprising:

a rotating shaft; and

2. The rotor assembly of claim 1, wherein the predetermined gap has a dimension in a radial direction of the rotating shaft of not more than 0.25 mm.

3. The rotor assembly of claim 2, wherein the contact area of the oil in the predetermined gap is 20.4 x 10 ═ a^-6m²The density of the oil is rho 0.75 multiplied by 10³Kg/m³The size of the preset gap along the radial direction of the rotating shaft is 0.25mm, and the sum of the mass of the oil in the preset gap and the mass of the oil in the oil storage tank is 4.2 multiplied by 10^-3g, the kinematic viscosity of the oil is not less than 1.096 multiplied by 10³m²/s。

4. A rotor assembly according to any one of claims 1 to 3, wherein the first mounting block assembly comprises:

5. A rotor assembly according to any one of claims 1 to 3, wherein the shaft is formed with a screw thread, the screw thread having a direction such that the shaft drives the oil in the predetermined gap to move upwards during rotation.

6. The rotor assembly of claim 5, wherein a predetermined gap between the oil and the mounting area contains air when the shaft stops rotating; when the rotating shaft rotates, oil in the preset gap moves upwards to discharge air between the oil and the installation area from the preset gap to the installation area.

7. A rotor assembly according to any one of claims 1 to 3, further comprising a drip pan located below the first mount assembly to receive oil dripping downwardly.

8. A rotor assembly according to any one of claims 1 to 3, further comprising a bearing, wherein the bearing is sleeved on the shaft, and the bearing is received in the mounting region.

9. A rotor assembly according to any one of claims 1 to 3, further comprising an impeller mounted on the shaft for rotation therewith, the impeller being located below the first mounting block assembly.

10. A delivery pump, comprising:

a housing; and

a rotor assembly as claimed in any one of claims 1 to 8, mounted within the housing, further comprising an impeller mounted on the shaft for rotation therewith, the impeller being located below the first mounting block assembly.

11. An indoor unit, comprising:

the indoor unit main body is provided with a first air outlet duct;

the transfer pump of claim 10, mounted to the indoor unit body, which transfers a sterilizing solution to the first air flow filter device to sterilize the air flow passing through the first air flow filter device.

12. An outdoor unit, comprising:

the outdoor unit main body is provided with a second air outlet duct;

the transfer pump of claim 10, installed in the outdoor unit main body, for transferring a sterilizing solution to the second airflow filter device to sterilize the airflow passing through the second airflow filter device.

13. An air treatment device, comprising:

the equipment main body is provided with a third air outlet duct;

the transfer pump of claim 10 mounted to the equipment body, the transfer pump transferring a sanitizing solution to the third airflow filtering device to sanitize airflow passing through the third airflow filtering device.