Compressor support and rotary table air conditioner, compressor control method

Abstract

The application discloses a compressor support, a rotary table air conditioner and a compressor control method. The compressor support is installed on a rotary table, and the compressor is installed on the compressor support. The inclination angle of the compressor relative to the horizontal plane can be adjusted through the compressor support, so that the oil suction hole of the oil suction pump in the compressor is lower than the oil level. The application sets the compressor support with adjustable angle below the compressor. When the compressor works in the rotating state, the inclination angle of the compressor relative to the horizontal plane can be automatically adjusted according to the oil level inclination angle, the oil suction hole of the oil suction pump in the compressor is always lower than the oil level in the compressor, the lubricating oil can be normally sucked in the rotating state, and the normal operation of the compressor is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of compressors, in particular to a compressor support, a rotary air conditioner, and a compressor control method. BACKGROUND

[0002] The rotary air conditioner is mainly used on a rotary platform. During use, the centrifugal force generated by the rapid rotation of the rotary platform can cause the oil level in the oil pool of the compressor to tilt. If the tilt angle of the oil level is too large, the oil suction hole on the oil suction pump can be higher than the oil level, so that the oil suction pump cannot suck lubricating oil for lubricating the friction parts and cooling the motor winding, which can cause the compressor to seize, the motor winding to overheat and burn out, and the air conditioner unit to fail to work normally.

[0003] At present, there is no effective solution to the problem that the oil level in the compressor tilts in the rotating state, which causes the oil suction pump to fail to suck lubricating oil. SUMMARY

[0004] The present application provides a compressor support, a rotary air conditioner, and a compressor control method to at least solve the problem that the oil level in the compressor tilts in the rotating state, which causes the oil suction pump to fail to suck lubricating oil.

[0005] To solve the above technical problem, the present application provides a compressor support, which is installed on a rotary platform, and a compressor is installed on the compressor support. The tilt angle of the compressor relative to the horizontal plane can be adjusted by the compressor support, so that the oil suction hole of the oil suction pump inside the compressor is lower than the oil level.

[0006] Optionally, the compressor support comprises:

[0007] a fixed part installed on the rotary platform;

[0008] a movable part connected to the fixed part;

[0009] a transmission component connected to the movable part for driving the movable part to move;

[0010] The compressor is installed on the movable part, and the tilt angle of the compressor relative to the horizontal plane is adjusted by the movement of the movable part.

[0011] Optionally, one end of the movable part close to the rotation center is connected to the fixed part.

[0012] Optionally, the movable part is connected to the transmission component through a connecting piece, and the connecting piece is connected to the movable part at a position point corresponding to the center of the compressor.

[0013] Optionally, the suction pipe and the exhaust pipe of the compressor are both flexible pipes.

[0014] Optionally, the compressor is a horizontal compressor.

[0015] Optionally, the compressor is provided with a rotating speed sensor.

[0016] The embodiment of the present application also provides a rotary table air conditioner, which comprises a compressor and the compressor support.

[0017] The embodiment of the present application also provides a compressor control method, which is realized based on the compressor support.

[0018] During the rotation of the compressor, the oil level tilt angle in the compressor is determined.

[0019] According to the oil level tilt angle, it is determined whether the oil suction hole of the oil suction pump in the compressor is lower than the oil level.

[0020] If not, the tilt angle of the compressor relative to the horizontal plane is adjusted to be equal to the oil level tilt angle.

[0021] Optionally, the oil level tilt angle in the compressor is determined by:

[0022] The angular velocity of the rotation of the compressor is obtained.

[0023] According to the rotation radius and the angular velocity, the oil level tilt angle is calculated.

[0024] Optionally, the oil level tilt angle is calculated by the following formula:

[0025] β=90°-arctan(g / ω 2 R),

[0026] Wherein, β represents the oil level tilt angle, g represents the gravitational acceleration, ω represents the angular velocity of the rotation of the compressor, and R represents the rotation radius.

[0027] Optionally, according to the oil level tilt angle, it is determined whether the oil suction hole of the oil suction pump in the compressor is lower than the oil level, comprising:

[0028] According to the oil level tilt angle, the distance between the top end of the oil suction pump and the oil level in the vertical direction is calculated.

[0029] The length of the oil suction pump and the distance are compared.

[0030] If the length of the oil suction pump is less than or equal to the distance, it is determined that the oil suction hole of the oil suction pump is not lower than the oil level.

[0031] If the length of the oil suction pump is greater than the distance, it is determined that the oil suction hole of the oil suction pump is lower than the oil level.

[0032] Optionally, the distance d between the top end of the oil suction pump and the oil level in the vertical direction is calculated by the following formula:

[0033] d=(r-h) / cosβ,

[0034] wherein β represents the oil level inclination angle, r represents the compressor cylinder radius, and h represents the oil level height in the compressor.

[0035] The embodiment of the present application further provides a computer device, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to realize the steps of the method provided by the embodiment of the present application.

[0036] The embodiment of the present application further provides a non-volatile computer readable storage medium, which stores a computer program, wherein the computer program is executed by a processor to realize the steps of the method provided by the embodiment of the present application.

[0037] By adjusting the angle of the compressor support under the compressor, the inclination angle of the compressor relative to the horizontal plane can be automatically adjusted according to the oil level inclination angle when the compressor works in the rotating state, so that the oil suction hole of the oil suction pump in the compressor is always lower than the oil level in the compressor, and the lubricating oil can be normally sucked in the rotating state, thereby ensuring the normal operation of the compressor. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 is a schematic diagram of the compressor support provided by the embodiment 1 of the present application Figure 1 ;

[0039] Figure 2 is a schematic diagram of the compressor support provided by the embodiment 1 of the present application Figure 2 ;

[0040] Figure 3 is a flow chart of the compressor control method provided by the embodiment 3 of the present application

[0041] Figure 4 is a force analysis diagram of the lubricating oil in the compressor oil pool in the rotating state provided by the embodiment 3 of the present application

[0042] Figure 5A is an oil level schematic diagram of the horizontal compressor in the normal working state provided by the embodiment 3 of the present application

[0043] Figure 5B is an oil level schematic diagram of the horizontal compressor in the rotating working state provided by the embodiment 3 of the present application DETAILED DESCRIPTION

[0044] In order to make the objects, technical solutions and advantages of the present application clearer, the following further describes the present application with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0045] It should be noted that the terms "comprising" and "having" and any variations thereof in the specification and claims of the present application and the accompanying drawings are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units does not have to be limited to the clearly listed steps or units, but can include other steps or units not clearly listed or inherent to the process, method, product or device.

[0046] It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that here.

[0047] The following describes optional embodiments of the present application in detail with reference to the accompanying drawings.

[0048] Embodiment 1

[0049] The present embodiment provides a compressor support suitable for a horizontal compressor, which can realize the rotation self-adaptation of the compressor.

[0050] Figure 1 And Figure 2 is a schematic view of the compressor support provided by Embodiment 1 of the present application, the swivel air conditioner 10 comprises a compressor 20, the compressor support 30 is installed on the swivel 40, the compressor 20 is installed on the compressor support 30, and the inclination angle of the compressor 20 relative to the horizontal plane can be adjusted through the compressor support 30, so that the oil suction hole of the oil suction pump inside the compressor 20 is lower than the oil level.

[0051] The present embodiment adjusts the inclination angle of the compressor 20 relative to the horizontal plane automatically according to the oil level when the compressor 20 works in the rotation state through the adjustable angle compressor support 30 arranged below the compressor 20, ensures that the oil suction hole of the oil suction pump inside the compressor 20 is always lower than the oil level in the compressor 20, so that the lubricating oil can be normally sucked in the rotation state, thereby ensuring the normal operation of the compressor.

[0052] The compressor support 30 can be fixedly installed on the swivel 40 or detachably installed on the swivel 40. The compressor 20 can be fixedly installed on the compressor support 30 or detachably installed on the compressor support 30.

[0053] The compressor support 30 comprises a fixed part 31, a movable part 32 and a transmission part 33. The fixed part 31 is installed on the turntable 40. The movable part 32 is connected with the fixed part 31. The transmission part 33 is connected with the movable part 32 and used to drive the movable part 32 to move. The compressor 20 is installed on the movable part 32 and the inclination angle of the compressor 20 relative to the horizontal plane is adjusted by the movement of the movable part 32.

[0054] The end of the movable part 32 close to the rotation center is connected to the fixed part 31, so that the compressor is inclined with the rotation center as the reference, that is, the side of the compressor close to the rotation center is lower than the side of the compressor far from the rotation center.

[0055] The movable part 32 is connected with the transmission part 33 through a connecting piece 34, the connecting piece 34 is connected to the movable part 32 at a position corresponding to the center of the compressor, so that the force balance of the movable part 32 is ensured and the service life of the device is prolonged.

[0056] The movable part 32 is preferably a rotatable bearing. The transmission part 33 can be realized by using a motor and a transmission belt, one end of the connecting piece 34 is connected with the output shaft of the motor and the other end of the connecting piece 34 is connected with the movable part 32. Of course, the transmission part 33 can also be realized by using other ways, and the realization of the transmission part 33 is not limited in the embodiment.

[0057] Considering that the inclination angle of the compressor 20 is adjusted at any time, the suction pipe and the exhaust pipe of the compressor 20 are both realized by using a hose, so as to better cooperate with the adjustment of the compressor 20 and avoid the damage of the pipeline.

[0058] The compressor 20 can be provided with a rotation speed sensor used to detect the angular velocity of the compressor 20 when rotating. Of course, the rotation speed sensor can also be arranged on the air conditioner 10.

[0059] Embodiment 2

[0060] The embodiment provides a turntable air conditioner, which comprises a compressor and the compressor support described in the above embodiment.

[0061] Embodiment 3

[0062] The embodiment provides a compressor control method, which is realized based on the compressor support described in the above embodiment. The same or corresponding terms are explained as in the above embodiment, and the embodiment will not be described herein. Figure 3 The embodiment 3 provides a flow chart of the compressor control method, as shown in Figure 3 The method comprises the following steps:

[0063] S301, determining the oil level inclination angle in the compressor during the rotation of the compressor.

[0064] S302, determine whether the oil suction port of the oil suction pump inside the compressor is lower than the oil level based on the oil level tilt angle.

[0065] S303, if not, adjust the tilt angle of the compressor relative to the horizontal plane to be equal to the oil level tilt angle.

[0066] If the oil suction port of the oil pump is lower than the oil level, it means that the oil pump can draw in lubricating oil, and there is no need to adjust the compressor tilt angle. If the oil suction port of the oil pump is not lower than the oil level, it means that the oil pump cannot draw in lubricating oil, and the compressor tilt angle needs to be adjusted so that the oil suction port of the oil pump is lower than the oil level.

[0067] Specifically, by controlling the motor in the compressor bracket to drive the movable part to rotate to a preset position, the tilt angle of the compressor relative to the horizontal plane is equal to the oil level tilt angle, thus achieving the adjustment of the compressor tilt angle.

[0068] The oil suction pump is fixed inside the compressor. When the tilt angle of the compressor is equal to the tilt angle of the oil level, the oil suction pump is perpendicular to the tilted oil level, thus ensuring that the oil suction port of the oil suction pump is lower than the oil level.

[0069] In this embodiment, the oil level tilt angle inside the compressor is determined during the compressor rotation process. If it is determined from the oil level tilt angle that the oil suction port of the oil pump inside the compressor is not lower than the oil level, the tilt angle of the compressor relative to the horizontal plane is adjusted to be equal to the oil level tilt angle. This ensures that the oil suction port of the oil pump inside the compressor is always lower than the oil level inside the compressor, so that it can normally draw lubricating oil during rotation, thereby ensuring the normal operation of the compressor.

[0070] In one implementation, determining the oil level tilt angle within the compressor includes: acquiring the angular velocity of the compressor during rotation; and calculating the oil level tilt angle based on the rotation radius and angular velocity. Specifically, the angular velocity of the compressor during rotation can be acquired using a speed sensor. The rotation radius is a parameter that can be determined after the air conditioner and turntable are installed.

[0071] Specifically, the oil level tilt angle can be calculated using the following formula: β=90°-arctan(g / ω) 2 R), where β represents the oil level tilt angle, g represents the gravitational acceleration, ω represents the angular velocity of the compressor during rotation, and R represents the radius of rotation.

[0072] The lubricating oil in the compressor oil sump is taken as the object of force analysis. The force analysis is as follows: Figure 4 As shown, the lubricating oil is considered as a point mass with a weight of m. When it moves with the turntable with a rotation radius R and an angular velocity ω, it is mainly subjected to three forces: centrifugal force, gravity, and support force. The oil level is always perpendicular to the direction of the support force N.

[0073] The cooperative force of gravity and centrifugal force is F, and the angle a between F and the horizontal plane is:

[0074] a = arctan(mg / mw 2 R) = arctan(g / w 2 R).

[0075] When the forces are balanced, the supporting force N and the cooperative force F act on the same straight line, and the angle between the supporting force N and the horizontal plane is also a, so the angle β between the oil level and the horizontal plane (i.e. the oil level inclination angle) is:

[0076] β = 90° - a = 90° - arctan(g / w 2 R).

[0077] In one embodiment, the oil suction hole of the oil suction pump in the compressor is determined to be below the oil level according to the oil level inclination angle, comprising: calculating the distance between the top end of the oil suction pump and the oil level in the vertical direction according to the oil level inclination angle; determining the size relationship between the length of the oil suction pump and the distance; if the length of the oil suction pump is less than or equal to the distance, it is determined that the oil suction hole of the oil suction pump is not below the oil level; if the length of the oil suction pump is greater than the distance, it is determined that the oil suction hole of the oil suction pump is below the oil level.

[0078] The distance d between the top end of the oil suction pump and the oil level in the vertical direction can be calculated by the following formula: d = (r - h) / cos β, wherein β represents the oil level inclination angle, r represents the compressor cylinder radius, and h represents the oil level height in the compressor.

[0079] Figure 5A Fig. 1 is a schematic diagram of the oil level in the normal working state of a horizontal compressor, Figure 5B Fig. 2 is a schematic diagram of the oil level in the rotating working state of a horizontal compressor, Figure 5A and Figure 5B are side views of a horizontal compressor, and the circle represents the compressor cylinder. Since the total amount of lubricating oil in the compressor is constant, the oil level height in the rotating state is equal to the oil level height in the normal working state, and the height is still h. The vertical distance between the center of the compressor cylinder and the oil level is r - h, and the distance d between the top end of the oil suction pump and the oil level in the vertical direction is (r - h) / cos β.

[0080] The size relationship between the length L of the oil suction pump and d is determined. If L > d, the inclination angle of the compressor does not need to be adjusted; if L ≤ d, the inclination angle of the compressor needs to be adjusted. Specifically, the motor is started to move the compressor (for reference Figure 2 ) until the angle between the oil suction pump of the compressor and the vertical direction is β (equivalent to the oil suction pump being inclined by β), so that the oil suction pump is perpendicular to the inclined oil level, and the oil suction hole at the bottom of the oil suction pump is kept below the oil level to prevent the lubricating oil from being unable to be sucked.

[0081] Embodiment 4

[0082] The embodiment provides a computer device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements steps of the method in the above embodiment when executing the computer program.

[0083] Embodiment 5

[0084] The embodiment provides a non-volatile computer readable storage medium, which stores a computer program, wherein the computer program is executable on a processor to implement steps of the method in the above embodiment.

[0085] The device embodiments described above are merely illustrative, wherein the units described as separate components can or can not be physically separated, and the components displayed as units can or can not be physical units, i.e., can be located in one place, or can be distributed on multiple network units. Part or all of the modules can be selected according to actual needs to achieve the purpose of the embodiment.

[0086] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be realized by means of software and necessary general hardware platform, and of course can also be realized by hardware. Based on such understanding, the above technical solutions can be embodied in the form of software product, which can be stored in a computer readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes a plurality of instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute the method described in each embodiment or some parts of the embodiment.

[0087] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to some technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A compressor bracket, characterized in that, The compressor bracket is mounted on the turntable, and the compressor is mounted on the compressor bracket. The tilt angle of the compressor relative to the horizontal plane can be adjusted by the compressor bracket so that the oil suction hole of the oil suction pump inside the compressor is lower than the oil level. The compressor bracket includes: A fixing part is installed on the turntable; The movable part is connected to the fixed part; A transmission component, connected to the movable part, is used to drive the movable part to move; The compressor is mounted on the movable part, and the tilt angle of the compressor relative to the horizontal plane is adjusted by the movement of the movable part; Both the suction pipe and the discharge pipe of the compressor are made of flexible hoses; The compressor is equipped with a speed sensor to detect the angular velocity of the compressor during rotation; During compressor rotation, the oil level tilt angle inside the compressor is determined based on the detected angular velocity; the oil level tilt angle is used to determine whether the oil suction port of the oil suction pump inside the compressor is lower than the oil level; if not, the tilt angle of the compressor relative to the horizontal plane is adjusted to be equal to the oil level tilt angle. Determining whether the oil suction port of the oil pump inside the compressor is lower than the oil level based on the oil level tilt angle includes: The vertical distance d between the top of the oil pump and the oil level is calculated based on the oil level tilt angle: d = (rh) / cosβ, where β represents the oil level tilt angle, r represents the compressor cylinder radius, and h represents the oil level height inside the compressor. Determine the relationship between the length of the oil suction pump and the distance; If the length of the oil pump is less than or equal to the distance, then the oil suction port of the oil pump is determined to be no lower than the oil level; If the length of the oil pump is greater than the distance, then it is determined that the oil suction port of the oil pump is lower than the oil level.

2. The compressor bracket according to claim 1, characterized in that, The end of the movable part near the center of rotation is connected to the fixed part.

3. The compressor bracket according to claim 1, characterized in that, The movable part is connected to the transmission component via a connector, which is connected to a position on the movable part corresponding to the center of the compressor.

4. The compressor bracket according to any one of claims 1 to 3, characterized in that, The compressor is a horizontal compressor.

5. A rotary air conditioner, characterized in that, include: The compressor and the compressor bracket according to any one of claims 1 to 4.

6. A compressor control method, implemented based on the compressor bracket according to any one of claims 1 to 4, characterized in that, The compressor control method includes: During compressor rotation, determine the oil level tilt angle inside the compressor; Determine whether the oil suction port of the oil suction pump inside the compressor is lower than the oil level based on the oil level tilt angle. If not, the tilt angle of the compressor relative to the horizontal plane is adjusted to be equal to the oil level tilt angle.

7. The method according to claim 6, characterized in that, Determine the oil level tilt angle inside the compressor, including: Obtain the angular velocity of the compressor during rotation; The oil level tilt angle is calculated based on the radius of rotation and the angular velocity.

8. The method according to claim 7, characterized in that, The oil level tilt angle is calculated using the following formula: β=90°-arctan(g / ω 2 R), Where β represents the oil level tilt angle, g represents the gravitational acceleration, ω represents the angular velocity of the compressor during rotation, and R represents the radius of rotation.

9. The method according to claim 6, characterized in that, Determining whether the oil suction port of the oil pump inside the compressor is lower than the oil level based on the oil level tilt angle includes: Calculate the vertical distance between the top of the oil pump and the oil level based on the oil level tilt angle; Determine the relationship between the length of the oil suction pump and the distance; If the length of the oil pump is less than or equal to the distance, then the oil suction port of the oil pump is determined to be no lower than the oil level; If the length of the oil pump is greater than the distance, then it is determined that the oil suction port of the oil pump is lower than the oil level.

10. The method according to claim 9, characterized in that, The vertical distance d between the top of the oil pump and the oil level is calculated using the following formula: d = (rh) / cosβ, Where β represents the oil level tilt angle, r represents the compressor cylinder radius, and h represents the oil level height inside the compressor.

11. A computer device, comprising: A memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that the processor, when executing the computer program, implements the steps of the method according to any one of claims 6 to 10.

12. A non-volatile computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 6 to 10.

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