WO2023087682A1

WO2023087682A1 - Compressor system, control method for compressor system, and air conditioner

Info

Publication number: WO2023087682A1
Application number: PCT/CN2022/098418
Authority: WO
Inventors: 朱桂友; 卢大海; 王峰; 韩伟涛; 潘德栋
Original assignee: 青岛海尔空调电子有限公司; 青岛海尔空调器有限总公司; 海尔智家股份有限公司
Priority date: 2021-11-22
Filing date: 2022-06-13
Publication date: 2023-05-25
Also published as: CN114110844A

Abstract

A compressor system, a control method for the compressor system, and an air conditioner. In order to solve the problem of damage due to the fact that oil shortage of a compressor cannot be found in time, the compressor system comprises a compressor (1), an elastic member (2), a first contact switch (3), a first on-off valve (4), and an oil supplementing device (5); the oil supplementing device (5) is communicated with the compressor (1); the first on-off valve (4) is provided between the oil supplementing device (5) and the compressor (1); the first contact switch (3) is connected to the first on-off valve (4); one end of the elastic member (2) is fixedly provided, and the other end is connected to the bottom of the compressor (1); the first contact switch (3) is configured to trigger and open the first on-off valve (4) when the elastic member (2) extends to a first position (21) and to disconnect and close the first on-off valve (4) when the elastic member retracts to a second position (22). When the compressor (1) lacks oil, the weight of the compressor (1) is correspondingly decreased; and when the elastic member (2) extends to the first position (21), the first contact switch (3) is triggered to open the first on-off valve (4), and the oil supplementing device (5) supplements compressor oil to the compressor (1) until the elastic member (2) retracts to the second position (22).

Description

Compressor system, control method of compressor system, and air conditioner

technical field

The invention relates to the technical field of compressors, and specifically provides a compressor system, a control method for the compressor system, and an air conditioner.

Background technique

With the development of the economic level, the application of air conditioners is becoming more and more common. As the core component of the air conditioner, the compressor plays a vital role in the performance of the air conditioner. For indoor units, after the compressor has been running for a long time, the oil return capillary between some indoor units and the compressor is easily blocked, resulting in oil shortage of the compressor, resulting in low efficiency of the compressor, poor energy efficiency, and even causing the compressor to be stuck due to lack of oil To damage the compressor, in the prior art, it is known whether the compressor is short of oil by measuring the oil level height in the compressor, but the measurement error is relatively large because the measurement is not accurate enough.

Correspondingly, a new compressor system is needed in the art to solve the problem that the existing compressor is short of oil and cannot be found in time to cause damage.

Contents of the invention

The present invention aims to solve the above-mentioned technical problem, that is, to solve the problem that the existing compressor lacks oil and cannot detect damage in time.

In a first aspect, the present invention provides a compressor system, which includes a compressor, an elastic member, a first contact switch, a first on-off valve, and an oil supply device, and the oil supply device is connected to the compressor The first on-off valve is set between the oil replenishing device and the compressor, the first contact switch is connected to the first on-off valve, one end of the elastic member is fixed, and the other One end is connected to the bottom of the compressor, and the first contact switch is set to trigger and open the first on-off valve when the elastic member stretches to the first position, and to disconnect when retracting to the second position And close the first on-off valve.

In the preferred technical solution of the above-mentioned compressor system, the outlet of the oil replenishing device is connected to the intake pipe of the compressor through a first pipeline, and the inlet of the oil replenishing device is connected to the compressor inlet through a second pipeline. The exhaust pipe is connected, and the first on-off valve is arranged on the second pipeline.

In the preferred technical solution of the above compressor system, the compressor system further includes a second contact switch, a second on-off valve and an oil discharge pipeline, one end of the oil discharge pipeline communicates with the compressor, and the other end of the oil discharge pipeline communicates with the compressor. The exhaust pipe of the compressor is connected, the second on-off valve is arranged on the oil discharge pipeline, the second contact switch is connected to the second on-off valve, and the second contact switch is set to When the elastic member retracts to the third position, it triggers and opens the second on-off valve, and when it extends to the second position, it disconnects and closes the second on-off valve.

In a preferred technical solution of the above-mentioned compressor system, a check valve is further arranged on the first pipeline.

In a preferred technical solution of the above compressor system, the compressor system further includes a gas-liquid separator, and the gas-liquid separator is connected to the intake pipe of the compressor.

The present invention also provides an air conditioner, the air conditioner is provided with the compressor system described in any one of the above.

The present invention also provides a control method for a compressor system. The compressor system includes a compressor, an elastic member, a first contact switch, a first on-off valve, and an oil replenishment device. The oil replenishment device is connected to the compressor The first on-off valve is set between the oil replenishing device and the compressor, the first contact switch is connected to the first on-off valve, one end of the elastic member is fixed, and the other One end is connected to the bottom of the compressor, and the first contact switch is set to trigger and open the first on-off valve when the elastic member stretches to the first position, and to disconnect when retracting to the second position And close the first on-off valve; the outlet of the oil replenishing device is connected with the intake pipe of the compressor through the first pipeline, and the inlet of the oil replenishing device is connected with the compressor's inlet through the second pipeline The exhaust pipe is connected, and the first on-off valve is arranged on the second pipeline; the compressor system also includes a second contact switch, a second on-off valve and an oil discharge pipeline, and one end of the oil discharge pipeline is connected to the The compressor is communicated, and the other end is communicated with the exhaust pipe of the compressor, the second on-off valve is arranged on the oil discharge pipeline, the second contact switch is connected to the second on-off valve, The second contact switch is configured to trigger and open the second on-off valve when the elastic member retracts to the third position, and to disconnect and close the second on-off valve when it is stretched to the second position. valve; said control method comprising:

Obtaining the position of the elastic member after a set time;

controlling the normal operation, high-frequency operation or stop operation of the compressor based on the position of the elastic member, so as to realize that the compressor oil in the compressor is in a normal liquid level state;

Wherein, high-frequency operation refers to frequency operation higher than normal operation.

In the preferred technical solution of the control method for the above-mentioned compressor system, "control the normal operation, high-frequency operation or stop operation of the compressor based on the position of the elastic member, so as to realize that the compressor oil in the compressor is in a normal state. The steps of "liquid level state" further include:

When the position of the elastic member is higher than the first position and lasts for a first preset time, the compressor is controlled to stop running; and/or, when the position of the elastic member is lower than the third position and When the second preset time lasts, the compressor is controlled to run at a high frequency.

In the preferred technical solution of the control method of the above-mentioned compressor system, "control the normal operation, high-frequency operation or stop operation of the compressor based on the position of the elastic member, so as to realize that the compressor oil in the compressor is in a normal state. The steps of "liquid level state" further include:

When the position of the elastic member is not higher than the first position and not lower than the third position, the compressor is controlled to run normally.

The present invention also provides an air conditioner, the air conditioner is the air conditioner in the compressor system control method, and the air conditioner can execute the compressor control method described in any one of the above.

Those skilled in the art can understand that the compressor system of the present invention includes a compressor, an elastic member, a first contact switch, a first on-off valve and an oil supply device, the oil supply device communicates with the compressor, and the first on-off valve It is arranged between the oil replenishing device and the compressor, the first contact switch is connected to the first on-off valve, one end of the elastic member is fixed, and the other end is connected to the bottom of the compressor, the first contact switch is set so that when the elastic member is extended to When it is in the first position, it triggers and opens the first on-off valve, and when it retracts to the second position, it disconnects and closes the first on-off valve.

In the case of adopting the above technical solution, the compressor of the compressor system of the present invention is connected to the oil supply device, and when the compressor is short of oil, the compressor is supplemented with compressor oil, and a first On-off valve, the first on-off valve controls the oil supply device to deliver the compressor oil to the compressor, further, an elastic member is connected to the bottom of the compressor, the first on-off valve is connected to a contact switch, and the contact switch is set to be elastic The first on-off valve is triggered and opened when the element is extended to the first position, and the first on-off valve is disconnected and closed when retracted to the second position. When the oil return capillary between the indoor unit and the compressor is blocked, the oil return of the compressor is reduced, and the weight of the compressor is reduced accordingly, so that the elastic member is stretched. When the elastic member is stretched to the first position, it means compression The machine is seriously short of oil. At this time, the first contact switch triggers and opens the first on-off valve, and the oil replenishment device sends compressor oil to the compressor. With more and more compressor oil in the compressor, the weight of the compressor As the weight gets heavier, the elastic member gradually retracts. When the weight of the compressor oil in the compressor meets the standard, the elastic member retracts to the second position. At this time, the first contact switch is disconnected and the first on-off valve is closed. The oil replenishment device stops delivering compressor oil to the compressor. In the present invention, the gravity of the compressor is applied to the elastic member, and the switch is triggered by the expansion and contraction of the elastic member, so that the oil replenishing device delivers the compressor oil to the compressor. Compared with controlling the compressor by measuring the oil level, this invention It is invented to directly trigger the opening and closing valve of the oil replenishing device through the change of weight, which is more efficient and can adjust the oil volume more accurately, so as to prevent the compressor from being short of oil and not being able to detect the problem of damage in time.

Description of drawings

Describe preferred embodiment of the present invention below in conjunction with accompanying drawing, in the accompanying drawing:

Fig. 1 is the structural representation of compressor system of the present invention;

Fig. 2 is the operation diagram of the first contact switch and the second contact switch of the compressor system of the present invention;

Fig. 3 is the flow chart of main steps of the control method of the compressor system of the present invention;

Fig. 4 is a flow chart of the steps of an embodiment of the control method of the compressor system of the present invention.

List of reference signs:

1. Compressor; 11. Intake pipe of compressor; 12. Exhaust pipe of compressor; 2. Elastic member; 21. First position; 22. Second position; 23. Third position; 3. First contact Switch; 31, the first fixed contact; 32, the first moving contact; 4, the first on-off valve; 5, oil supply device; 51, the first pipeline; 511, one-way valve; 53. Time controller; 6. The second contact switch; 61. The second fixed contact; 62. The second moving contact; 7. The second opening and closing valve; 8. Oil discharge pipeline; 9. Gas-liquid separation Device, 10, oil separator.

Detailed ways

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the present invention, and are not intended to limit the protection scope of the present invention. Those skilled in the art can make adjustments as needed so as to adapt to specific applications.

It should be noted that, in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The terminology of the indicated direction or positional relationship is based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation , and therefore cannot be construed as a limitation of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In addition, it should be noted that, in the description of the present invention, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a It is a detachable connection, or an integral connection; it may be a mechanical connection; it may be a direct connection or an indirect connection through an intermediary, and it may be the internal communication of two components. Those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

As shown in Figure 1 and Figure 2, in order to solve the problem that the existing compressor lacks oil and cannot be found in time to cause damage, the compressor system of the present invention includes a compressor 1, an elastic member 2, a first contact switch 3, a first The on-off valve 4 and the oil supply device 5, the oil supply device 5 is in communication with the compressor 1, the first on-off valve 4 is arranged between the oil supply device 5 and the compressor 1, the first contact switch 3 and the first on-off valve 4 connection, one end of the elastic member 2 is fixed, the other end is connected to the bottom of the compressor 1, the first contact switch 3 is set to trigger and open the first on-off valve 4 when the elastic member 2 stretches to the first position 21, and the return When retracted to the second position 22, the first on-off valve 4 is disconnected and closed, and the first position 21 is where the connection point between the elastic member 2 and the compressor 1 is located. In a possible implementation manner, the first contact switch 3 is a first electromagnetic switch. As shown in FIG. 2 , the first contact switch 3 includes a first fixed contact 31 and a first moving contact 32. The first fixed contact The point 31 is fixedly arranged, and the first movable contact 32 is connected with the flexible end of the elastic member 2. When the elastic member 2 stretches to the first position 21, the two contacts of the first contact switch 3 are combined, and the first contact switch 3 is triggered, and the first on-off valve 4 is opened; due to the characteristics of the electromagnetic switch, the first fixed contact 31 and the first movable contact 32 can be in the triggered state within the first preset distance, for example, the first preset distance 5mm until the two contacts are in the disconnected state when the elastic member 2 retracts to the second position 22, the first contact switch 3 is disconnected, and the first on-off valve 4 is closed. Preferably, the first on-off valve 4 is the first solenoid valve. Preferably, the number of elastic pieces 2 is three, and the three elastic pieces 2 are arranged side by side. Specifically, one end of the three elastic pieces 2 is fixed, and the other ends are connected together. Preferably, the first on-off valve 4 is connected with a time controller 53 .

The advantage of the above arrangement is that the compressor 1 of the compressor system of the present invention is connected to the oil supply device 5, and when the compressor 1 is short of oil, the compressor 1 is replenished with compressor oil, and between the compressor 1 and the oil supply device 5 A first on-off valve 4 is provided, and the first on-off valve 4 controls the oil supply device 5 to deliver press oil to the compressor 1. Further, an elastic member 2 is connected to the bottom of the compressor 1, and the first on-off valve 4 A first contact switch 3 is connected, and the first contact switch 3 is configured to trigger and open the first on-off valve 4 when the elastic member 2 stretches to the first position 21, and to disconnect and close the first on-off valve 4 when it retracts to the second position 22. One on-off valve 4. When the oil return capillary between some indoor units and the compressor 1 is blocked, the oil return of the compressor 1 is reduced, and the weight of the compressor 1 is reduced accordingly, so that the elastic member 2 is elongated. For example, the oil level is as shown in Fig. 1 At the same time, the elastic member 2 stretches to the first position 21, indicating that the compressor 1 is seriously short of oil. At this time, the first contact switch 3 is triggered and the first on-off valve 4 is opened, and the oil supply device 5 supplies oil to the compressor 1. Delivery of the compressor oil, as the compressor oil in the compressor 1 increases, the weight of the compressor 1 becomes heavier and heavier, and the elastic member 2 gradually retracts, and when the weight of the compressor oil in the compressor 1 meets In standard time, for example, the oil level is Y in Fig. 1, and the elastic member 2 retracts to the second position 22 at the same time, at this moment, the first contact switch 3 is disconnected and the first on-off valve 4 is closed, and the oil supply device 5 stops to Compressor 1 delivers compressor oil. In the present invention, the gravity of the compressor 1 is applied to the elastic member 2, and the expansion and contraction of the elastic member 2 triggers the switch, so that the oil supply device 5 delivers the compressor oil to the compressor 1, compared with measuring the oil level and then compressing The engine is controlled, and the opening and closing valve of the oil replenishing device 5 is directly triggered by the change of the weight. The efficiency is higher, and the oil volume is adjusted more accurately, so as to prevent the compressor 1 from being short of oil and not being able to detect damage in time. The number of elastic parts 2 is Three, providing higher stretching elasticity for the compressor 1, one of the elastic parts 2 is damaged, and the other two can still support the compressor 1, preventing the compressor 1 from falling rapidly and being damaged. The time controller 53 counts the opening time of the first on-off valve 4 .

As shown in Figures 1 and 2, in a possible implementation, the outlet of the oil replenishing device 5 is connected to the intake pipe 11 of the compressor through the first pipeline 51, and the inlet of the oil replenishing device 5 is connected through the second pipeline 52 is connected to the exhaust pipe 12 of the compressor, the first on-off valve 4 is set on the second pipeline 52, and a check valve 511 is also set on the first pipeline 51, and the compressor system also includes a second contact switch 6. The second on-off valve 7, the oil discharge pipeline 8 and the gas-liquid separator 9. One end of the oil discharge pipeline 8 communicates with the compressor 1, and the other end communicates with the exhaust pipe 12 of the compressor. The second on-off valve 7 is set on On the oil discharge pipeline 8, the second contact switch 6 is connected to the second on-off valve 7, the second contact switch 6 is connected to the second on-off valve 7, and the second contact switch 6 is set so that when the elastic member 2 retracts to the third When the position is 23, the second on-off valve 7 is triggered and opened, and when it is extended to the second position 22, the second on-off valve 7 is disconnected and closed. In a possible implementation manner, the second contact switch 6 is a second electromagnetic switch. As shown in FIG. 2 , the second contact switch 6 includes a second fixed contact 61 and a second moving contact 62. The second fixed contact The point 61 is fixedly arranged, and the second movable contact 62 is connected with the flexible end of the elastic member 2. When the elastic member 2 retracts to the third position 23, the second fixed contact 61 is combined with the second movable contact 62, Thus, the second contact switch 6 is triggered and the second on-off valve 7 is opened, and the second fixed contact 61 and the second movable contact 62 can still be in the triggered state within the second preset distance, for example, the second preset distance 8mm, until the elastic member 2 stretches out to the second position 22, the second fixed contact 61 and the second moving contact 62 are in a disconnected state, the second contact switch 6 is disconnected, and the second on-off valve 7 is disconnected Continuing to refer to FIG. 1 , the gas-liquid separator 9 is connected to the intake pipe 11 of the compressor, and an oil separator 10 is also provided on the discharge pipe 12 of the compressor.

The advantage of the above arrangement is that the outlet of the oil replenishing device 5 is connected to the intake pipe 11 of the compressor through the first pipeline 51, and the inlet of the oil replenishing device 5 is connected to the exhaust pipe 12 of the compressor through the second pipeline 52. The first on-off valve 4 is arranged on the second pipeline 52. When the oil replenishment device 5 supplies oil to the compressor 1, the two contacts of the first contact switch 3 touch and open the first on-off valve 4 , part of the high-temperature and high-pressure gas in the exhaust pipe 12 of the compressor enters the second pipeline 52, and enters the oil replenishing device 5 through the second pipeline 52 to squeeze the internal compressor oil into the first pipeline 51, and The first pipeline 51 enters the compressor 1 through the air intake pipe 11 of the compressor to replenish compressor oil for the compressor 1. The check valve 511 provided on the first pipeline 51 makes the compressor in the oil supply device 5 The oil can only flow into the compressor 1, but the gas in the compressor 1 cannot enter the oil supply device 5, the gas-liquid separator 9 will separate the compressor oil from the gas entering the compressor 1, and the oil separator 10 will discharge the gas from the compressor 1. The compressor oil in the gas is separated.

Further, the compressor system also includes an oil discharge pipeline 8, one end of the oil discharge pipeline 8 communicates with the compressor 1, and the other end communicates with the exhaust pipe 12 of the compressor, and the second on-off valve 7 is arranged on the oil discharge pipeline 8 , when the compressor oil in the compressor 1 is too much and exceeds the ideal range, for example, the oil level is Z in Fig. 1, and the elastic member 2 retracts to the third position 23 at the same time, the second contact switch 6 triggers and opens The second opening and closing valve 7, under the action of the internal pressure of the compressor 1, the compressor oil enters the oil discharge pipeline 8 with the gas and then enters the exhaust pipe 12 of the compressor, that is, enters the refrigerant circulation pipeline. When the oil return capillary between the indoor unit and compressor 1 is blocked, compressor 1 discharges more compressor oil, and the return oil is less than the discharge oil, so that the compressor oil in compressor 1 gradually decreases, and the compressor When the compressor oil in 1 is too much and exceeds the ideal range, you only need to discharge the excess compressor oil into the system. Since the return oil is less than the oil intake, the compressor oil in compressor 1 will gradually decrease until it reaches normal scope.

It should be noted that the above-mentioned embodiments are only used to illustrate the principles of the present invention, and are not intended to limit the protection scope of the present invention. Those skilled in the art can adjust the above-mentioned structures without departing from the principles of the present invention, so that The present invention can be applied to more specific application scenarios.

For example, in an alternative embodiment, the elastic member 2 can be a spring or an elastic rubber, so there are no restrictions on the structure and type of the elastic member 2, as long as the elastic member 2 can be stretched, these are not Deviate from the principle of the present invention, therefore all will fall within the scope of protection of the present invention.

For example, in an alternative implementation, the first contact switch 3 and the first on-off valve 4 can be connected in a circuit or mechanically, so there is no connection between the first contact switch 3 and the first on-off valve 4 . Any restrictions on the connection mode, as long as the first contact switch 3 can control the opening and closing of the first on-off valve 4, the second contact switch 6 is the same as the second on-off valve 7, and these do not deviate from the principles of the present invention. Principle, therefore all will fall within the scope of protection of the present invention.

In addition, the present invention also provides an air conditioner, which has the compressor system described in any one of the above implementation manners.

In addition, the present invention also provides a control method for a compressor system, as shown in Figure 1, the compressor system includes a compressor 1, an elastic member 2, a first contact switch 3, a first on-off valve 4 and an oil replenishing device 5. The oil supply device 5 communicates with the compressor 1, the first on-off valve 4 is set between the oil supply device 5 and the compressor 1, the first contact switch 3 is connected to the first on-off valve 4, and one end of the elastic member 2 is fixed The other end is connected to the bottom of the compressor 1, and the first contact switch 3 is set to trigger and open the first on-off valve 4 when the elastic member 2 stretches to the first position 21, and to turn off the first on-off valve 4 when it retracts to the second position 22. Open and close the first on-off valve 4; the outlet of the oil replenishment device 5 is connected to the intake pipe 11 of the compressor through the first pipeline 51, and the inlet of the oil replenishment device 5 is connected to the exhaust pipe of the compressor through the second pipeline 52 12 connection, the first on-off valve 4 is set on the second pipeline 52; the compressor system also includes a second contact switch 6, a second on-off valve 7 and an oil discharge pipeline 8, and one end of the oil discharge pipeline 8 is connected to the compressor 1 The other end communicates with the discharge pipe 12 of the compressor. The second on-off valve 7 is arranged on the oil discharge pipeline 8. The second contact switch 6 is connected to the second on-off valve 7. The second contact switch 6 is set as When the elastic member 2 retracts to the third position 23, it triggers and opens the second on-off valve 7, and when it extends to the second position 22, it disconnects and closes the second on-off valve 7. The first on-off valve 4 is also connected with a time Controller 53; As shown in Figure 3, the control method includes:

Step S01: Obtain the position of the elastic member after the set time has elapsed;

Step S02: Control the normal operation, high-frequency operation or stop operation of the compressor based on the position of the elastic member, so as to realize that the compressor oil in the compressor is in a normal liquid level state.

As shown in Figure 4, step S02 "controlling the normal operation, high-frequency operation or stop operation of the compressor based on the position of the elastic member, so as to realize that the compressor oil in the compressor is in a normal liquid level state" further includes:

Step S021: When the position of the elastic member is higher than the first position for a first preset time, control the compressor to stop running;

Step S022: When the position of the elastic member is lower than the third position for a second preset time, control the compressor to run at high frequency;

Step S023: When the position of the elastic member is not higher than the first position and not lower than the third position, control the compressor to run normally.

As shown in Figure 1, after the compressor 1 is running, after a set time, the position of the elastic member 2 is obtained, and based on the position of the elastic member 2, the compressor 1 is controlled to run normally, run at a high frequency or stop running, for example, every 5 The position of the elastic member 2 is detected every minute. With the change of the oil volume in the compressor 1, the weight of the compressor 1 changes, and the expansion and contraction of the elastic member 2 causes the position of the elastic member 2 to change. According to the position of the elastic member 2 The variation controls normal operation, high frequency operation or deactivation of the compressor 1 . Further, when the position of the elastic member 2 is higher than the first position 21, it means that the weight of the compressor 1 is relatively light, and the compressor 1 is in a state of lack of oil, and the oil replenishing device 5 replenishes the compressor oil to the compressor 1, and at the same time The controller 53 is turned on, and the position of the elastic member 2 is acquired after the first preset time, and the position of the elastic member 2 is still higher than the first position, that is, when the oil shortage state lasts for the first preset time, for example, the first preset The time is 60 minutes. In order to prevent the compressor 1 from being damaged due to lack of oil, the compressor 1 is controlled to stop running; when the position of the elastic member 2 is lower than the third position 23, it means that the weight of the compressor 1 is too heavy, and the compressor 1 is at a high level. The state of the oil level, the oil discharge pipeline 8 discharges the compressor oil in the compressor 1, and obtains the position of the elastic member 2 after the second preset time, or by setting the oil discharge time controller on the second on-off valve Timing, if the position of the elastic member 2 is still lower than the third position, that is, the high oil level state lasts for a second preset time, for example, the second preset time is 20 minutes, and the compressor 1 is controlled to run at a high frequency, wherein the high oil level Frequency operation refers to frequency operation higher than normal operation, for example, the frequency of high frequency operation is 80% of the maximum frequency A of compressor 1, for example, A is 105Hz, so that the pressure in compressor 1 increases rapidly , and then quickly discharge the compressor oil inside the compressor 1, and as the compressor oil in the compressor 1 gradually decreases, the frequency of high-frequency operation gradually decreases. For example, the frequency of high-frequency operation is according to the formula A×80% -B gradually decreases, where B gradually increases with the elongation of the elastic member 2, until the position of the elastic member 2 reaches the second position, and the high-frequency operation ends, making the frequency change more gentle, preventing the frequency mutation from being large to the indoor The heat exchange is affected, and when the position of the elastic member 2 is not higher than the first position 21 and not lower than the third position 23, the normal operation of the compressor 1 is controlled.

In addition, the present invention also provides an air conditioner, the air conditioner has the compressor system in the control method of the compressor system in the above embodiment, and the air conditioner can execute the control method of the compressor system in the above embodiment.

So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings, but those skilled in the art will easily understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.

Claims

A compressor system, characterized in that the compressor system includes a compressor, an elastic member, a first contact switch, a first on-off valve, and an oil replenishment device, and the oil replenishment device communicates with the compressor, and the The first on-off valve is arranged between the oil supply device and the compressor, the first contact switch is connected to the first on-off valve, one end of the elastic member is fixed, and the other end is connected to the The bottom of the compressor is connected, the first contact switch is set to trigger and open the first on-off valve when the elastic member stretches to the first position, and disconnect and close the The first on-off valve.
The compressor system according to claim 1, wherein the outlet of the oil replenishing device is connected to the intake pipe of the compressor through a first pipeline, and the inlet of the oil replenishing device is connected to the inlet pipe of the compressor through a second pipeline. The exhaust pipe of the compressor is connected, and the first on-off valve is arranged on the second pipeline.
The compressor system according to claim 1, characterized in that the compressor system further comprises a second contact switch, a second on-off valve and an oil discharge pipeline, one end of the oil discharge pipeline communicates with the compressor, The other end communicates with the exhaust pipe of the compressor, the second on-off valve is arranged on the oil discharge pipeline, the second contact switch is connected to the second on-off valve, and the second contact switch It is configured to trigger and open the second on-off valve when the elastic member retracts to the third position, and disconnect and close the second on-off valve when stretched to the second position.
The compressor system according to claim 2, characterized in that a check valve is further arranged on the first pipeline.
The compressor system according to claim 1, characterized in that, the compressor system further comprises a gas-liquid separator, and the gas-liquid separator is connected to the intake pipe of the compressor.
A control method for a compressor system, the compressor system includes a compressor, an elastic member, a first contact switch, a first on-off valve, and an oil replenishment device, the oil replenishment device communicates with the compressor, the The first on-off valve is arranged between the oil supply device and the compressor, the first contact switch is connected to the first on-off valve, one end of the elastic member is fixed, and the other end is connected to the compressor connected to the bottom of the machine, the first contact switch is set to trigger and open the first on-off valve when the elastic member stretches to the first position, and disconnect and close the first on-off valve when it retracts to the second position. An on-off valve; the outlet of the oil replenishing device is connected to the intake pipe of the compressor through the first pipeline, and the inlet of the oil replenishing device is connected to the exhaust pipe of the compressor through the second pipeline, The first on-off valve is arranged on the second pipeline; the compressor system also includes a second contact switch, a second on-off valve and an oil discharge pipeline, one end of the oil discharge pipeline communicates with the compressor , the other end communicates with the exhaust pipe of the compressor, the second on-off valve is arranged on the oil discharge pipeline, the second contact switch is connected to the second on-off valve, the second contact The switch is configured to trigger and open the second on-off valve when the elastic member is retracted to the third position, and to disconnect and close the second on-off valve when it is stretched to the second position;

It is characterized in that the control method includes:

Obtaining the position of the elastic member after a set time;

controlling the normal operation, high-frequency operation or stop operation of the compressor based on the position of the elastic member, so that the compressor oil in the compressor is in a normal liquid level state;

Wherein, high-frequency operation refers to frequency operation higher than normal operation.
The control method of the compressor system according to claim 6, characterized in that, "control the normal operation, high-frequency operation or stop operation of the compressor based on the position of the elastic member, so as to realize the pressure in the compressor." Engine oil is in a normal fluid level" step further includes:

When the position of the elastic member is higher than the first position for a first preset time, the compressor is controlled to stop running; and/or,

When the position of the elastic member is lower than the third position for a second preset time, the compressor is controlled to run at a high frequency.
The control method of the compressor system according to claim 6, characterized in that, "control the normal operation, high-frequency operation or stop operation of the compressor based on the position of the elastic member, so as to realize the pressure in the compressor." Engine oil is in a normal fluid level" step further includes:

When the position of the elastic member is not higher than the first position and not lower than the third position, the compressor is controlled to run normally.
An air conditioner, characterized in that the air conditioner is provided with the compressor system according to any one of claims 1-5.
An air conditioner, characterized in that the air conditioner is the air conditioner described in claim 6, and the air conditioner is configured to be able to perform the control of the compressor system described in any one of claims 6-9 method.