Liquid distributor, compressor including the liquid distributor, and air conditioner

Abstract

The present invention discloses a liquid distributor, a compressor and an air conditioner including the liquid distributor, the liquid distributor includes a cylinder with a chamber inside, an air inlet pipe arranged on the cylinder, and at least two exhaust pipes, each of the exhaust pipes is arranged on the cylinder, and each is provided with an air inlet connected to the chamber, the air inlet of at least one exhaust pipe is provided with a valve body assembly for unidirectional communication from the chamber to the exhaust pipe, and the exhaust pipe is also provided with an air supply channel, the air supply channel passes through the cylinder and is connected to an air supply source. With such an arrangement, the opening and closing of the air inlet of the exhaust pipe can be controlled by the valve body assembly to realize the operation of the compressor in multiple modes, without the need to add additional components such as a liquid distributor, thereby improving the reliability and assembly efficiency of the compressor.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and more particularly to a liquid distributor, a compressor including the liquid distributor, and an air conditioner. Background Art

[0002] At present, two-cylinder compressors are limited by the minimum operating frequency, and there is a situation where the minimum cooling capacity of the compressor is higher than the cooling demand. It is necessary to add components to the pump body assembly to control the movement of the slide vane to achieve variable capacity compression. The air-increasing and reheat-increasing operation and independent compression operation of the compressor also require the addition of a liquid distributor to connect to the system flash evaporator or heat exchanger on the basis of the original liquid distributor. For example, for air conditioners with a small mass flow rate of refrigerant that cannot meet the cooling demand, the cooling capacity is often improved by the air-increasing and reheat-increasing operation of the compressor. This requires an additional liquid distributor to be connected to the air source to supply refrigerant to the compressor. As mentioned above, the realization of variable capacity compression, air-increasing and reheat-increasing operation, and independent compression operation of the compressor requires additional components, which reduces the reliability of the compressor and increases the assembly requirements of the compressor, which is not conducive to improving the assembly efficiency of the compressor.

[0003] Therefore, how to solve the problem in the prior art that realizing multiple modes of operation of the compressor requires adding parts, resulting in reduced compressor reliability, increased assembly requirements and reduced assembly efficiency has become an important technical problem to be solved by technical personnel in this field. Summary of the invention

[0004] The object of the present invention is to provide a liquid distributor, a compressor and an air conditioner including the liquid distributor, so as to solve the problem that the various modes of operation of the compressor require additional components such as a liquid distributor, which leads to reduced compressor reliability, increased assembly requirements and reduced assembly efficiency. The preferred technical solutions among the many technical solutions provided by the present invention can produce many technical effects as described below.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The present invention provides a liquid dispenser, comprising a cylinder with a chamber inside, an air inlet pipe arranged on the cylinder, and at least two exhaust pipes, each of the exhaust pipes is arranged on the cylinder and is provided with an air inlet connected to the chamber, the air inlet of at least one exhaust pipe is provided with a valve body assembly that unidirectionally conducts from the chamber to the exhaust pipe, and the exhaust pipe is also provided with an air supply channel, which passes through the cylinder and is connected to an air supply source.

[0007] Preferably, when the gas pressure of the air inlet pipe is greater than the gas pressure of the air supplement channel, the valve body assembly opens to allow one-way communication between the chamber and the exhaust pipe.

[0008] Preferably, each of the exhaust pipes is provided with at least two air inlets, each of the air inlets is provided with the valve body assembly, and each of the exhaust pipes is provided with the air supplement channel.

[0009] Preferably, the valve body assembly includes a one-way valve sheet that cooperates with the air inlet and a baffle plate that is arranged on the inner wall of the exhaust pipe and corresponds to the one-way valve sheet. The one-way valve sheet moves relative to the air inlet to allow the air inlet to be connected from the chamber to the exhaust pipe, and a gap is provided between the baffle plate and the air inlet.

[0010] Preferably, the distance between the air inlet and the outlet end of the air inlet pipe is smaller than the distance between the connection position of the air supplement channel on the exhaust pipe and the outlet end of the air inlet pipe.

[0011] A compressor comprises a liquid separator, wherein the liquid separator is the above-mentioned liquid separator.

[0012] Preferably, each of the exhaust pipes is connected one-to-one with the cylinder of the compressor, and each of the cylinders is provided with a flange, and the flange is provided with an exhaust valve for discharging the compressed gas in the corresponding cylinder, and the cylinder correspondingly connected to the exhaust pipe provided with the air supply channel is a variable volume cylinder, and the compressor also includes an air circuit arranged one-to-one with the flange of at least one of the variable volume cylinders, and the air circuit is used to transport refrigerant gas to the side of the flange away from the corresponding variable volume cylinder; when the gas pressure of the air circuit is lower than the gas pressure in the corresponding variable volume cylinder, the exhaust valve of the flange is in an open state.

[0013] An air conditioner comprises a compressor, wherein the compressor is the above-mentioned compressor.

[0014] Preferably, a flash evaporator is further included, the flash evaporator is connected to the gas supplement channel, and a first valve body for adjusting the gas pressure in the gas supplement channel is provided between the flash evaporator and the gas supplement channel.

[0015] Preferably, each of the exhaust pipes is connected to the cylinder of the compressor in a one-to-one correspondence, and each of the cylinders is provided with a flange, and the flange is provided with an exhaust valve for discharging the compressed gas in the corresponding cylinder, and the cylinder connected to the exhaust pipe provided with the air supply channel is a variable volume cylinder, and the compressor also includes an air circuit arranged in a one-to-one correspondence with the flange of at least one of the variable volume cylinders, and the air circuit is used to transport refrigerant gas to the side of the flange away from the corresponding variable volume cylinder; the air circuit is connected to the flash evaporator, and a second valve body for adjusting the gas pressure in the air circuit is provided between the air circuit and the flash evaporator.

[0016] In the technical solution provided by the present invention, the liquid distributor is provided with at least two exhaust pipes, the exhaust pipes are connected to the cylinders of the compressor in a one-to-one correspondence, each exhaust pipe is provided with an air inlet, at least one exhaust pipe is provided with a valve body assembly matched with the air inlet and an air supply channel connected to the air supply source, and the valve body assembly is unidirectionally conducted from the chamber to the exhaust pipe. When the valve body assembly is opened, the refrigerant gas flowing into the chamber and the air supply channel flows into the cylinder from the exhaust pipe for compression, and the corresponding cylinder is in an air supply enthalpy increase operation mode. When the valve body assembly is closed, only the refrigerant flowing into the air supply channel is compressed, and the corresponding cylinder is in an independent compression operation mode. In this way, the air supply enthalpy increase operation and independent compression operation of the compressor can be realized by opening and closing the valve body assembly, and the various operation modes of the compressor are controlled by the liquid distributor arranged at the air inlet end of the compressor cylinder, and no additional parts are required for the compressor, which improves the reliability of the compressor, reduces the requirements of the compressor for assembly, and is conducive to improving the assembly efficiency of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 is a schematic structural diagram of a liquid dispenser in an embodiment of the present invention;

[0019] Figure 2 Schematic diagram of the structure of the compressor in the embodiment of the present invention.

[0020] In the figure: 1-cylinder, 2-chamber, 3-inlet pipe, 31-outlet end, 4-exhaust pipe, 41-outer pipe section, 42-inner pipe section, 5-inlet port, 6-valve body assembly, 61-one-way valve plate, 62-baffle, 7-air supply channel, 8-fastener, 9-gap, 10-cylinder, 11-flange, 12-air path. DETAILED DESCRIPTION

[0021] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0022] The purpose of this specific implementation is to provide a liquid distributor to solve the problem that the compressor needs to add parts to realize multiple modes of operation, which reduces the reliability of the compressor and is not conducive to improving the assembly efficiency of the compressor.

[0023] The following is an explanation of the embodiments with reference to the accompanying drawings. In addition, the embodiments shown below do not limit the invention described in the claims. In addition, the entire contents of the configurations shown in the following embodiments are not limited to the solutions required as the invention described in the claims.

[0024] See also Figure 1 The liquid distributor provided in this embodiment includes a cylinder 1, an air inlet pipe 3 and an air outlet pipe 4 arranged on the cylinder 1, and the air outlet pipe 4 is provided with at least two, which are respectively connected to the cylinders 10 of the compressor in a one-to-one correspondence. Each of the air outlet pipes 4 is provided with an air inlet 5 communicating with the chamber 2 inside the cylinder 1, and at least one of the air outlet pipes 4 is provided with a valve body assembly 6 and an air supply channel 7 matched with the air inlet 5, and the air supply channel 7 passes through the cylinder 1 and is connected to the air supply source.

[0025] When the valve body assembly 6 is opened, the refrigerant gas flowing into the chamber 2 and the air supply channel 7 flows into the cylinder 10 through the exhaust pipe 4 for compression. At this time, the corresponding cylinder 10 is in the air supply and heat increase operation mode. When the valve body assembly 6 is closed, only the refrigerant flowing into the air supply channel 7 is compressed. At this time, the corresponding cylinder 10 is in the independent compression operation mode. With such a configuration, the air supply and heat increase operation and independent compression operation of the compressor can be realized by opening and closing the valve body assembly 6. The various operation modes of the compressor are controlled by the liquid distributor arranged at the air inlet end of the compressor cylinder 10. No additional parts are required for the compressor, which improves the reliability of the compressor, reduces the assembly requirements of the compressor, and is conducive to improving the assembly efficiency of the compressor.

[0026] The following is a specific description of the various operating modes of the compressor, taking the compressor having two cylinders 10 as an example. The two cylinders 10 of the compressor are the upper cylinder and the lower cylinder. In the case where only one exhaust pipe 4 is provided with a valve body assembly 6 and an air supply channel 7, the exhaust pipe 4 can be connected to the upper cylinder or the lower cylinder of the compressor. Next, the exhaust pipe 4 provided with a valve body assembly 6 and an air supply channel 7 is connected to the lower cylinder as an example. The exhaust pipe 4 connected to the upper cylinder is not provided with a valve body assembly 6 and an air supply channel 7. The upper cylinder is in a normal operating state, and the compressed gas is the refrigerant gas flowing into the cylinder 1 from the evaporator. The lower cylinder has the following operating modes: when the valve body assembly 6 is opened, the lower cylinder compresses the mixed gas flowing into the exhaust pipe 4 from the air inlet 5 and the air supply channel 7, and the lower cylinder is in an air supply and enthalpy increase operating state; when the valve body assembly 6 is closed, the lower cylinder only compresses the refrigerant flowing into the air supply channel 7, and at this time the lower cylinder is in a single independent operating state.

[0027] In the case where both exhaust pipes 4 are provided with valve body assemblies 6 and air supply passages 7, the upper cylinder and the lower cylinder both have single independent operation and air supply and enthalpy increase operation modes, so the combination of the operation modes of the upper cylinder and the lower cylinder includes: double air supply and enthalpy increase operation, double independent operation, single air supply and enthalpy increase and single independent compression operation, etc. "Double" refers to the upper cylinder and the lower cylinder, which means that the operation modes of the upper cylinder and the lower cylinder are the same; "single" refers to the upper cylinder or the lower cylinder.

[0028] With such an arrangement, the multi-mode operation of the compressor is controlled by the liquid distributor, and the opening and closing of the valve body assembly 6 of the liquid distributor are controlled, so that the various operating modes of the compressor, such as air replenishment and enthalpy increase operation and independent compression operation, can be realized. There is no need to add additional components such as a liquid distributor to the compressor. The reliability of the compressor is higher, the assembly requirements of the compressor are reduced, and it is beneficial to improve the assembly efficiency of the compressor.

[0029] In the preferred solution of this embodiment, the opening and closing of the valve body assembly 6 is controlled by pressure. When the gas pressure of the air inlet pipe 3 is greater than the gas pressure of the air supply channel 7, that is, the gas pressure in the chamber 2 is greater than the gas pressure in the air supply channel 7, the thrust of the gas in the chamber 2 on the valve body assembly 6 is greater than the thrust of the gas flowing into the exhaust pipe 4 through the air supply channel 7 on the valve body assembly 6, so that the valve body assembly 6 opens to the inside of the exhaust pipe 4, the air inlet 5 is connected from the chamber 2 to the inside of the exhaust pipe 4, and the refrigerant gas in the chamber 2 can flow into the exhaust pipe 4 through the air inlet 5. When the gas pressure of the air inlet pipe 3 is less than the gas pressure of the air supply channel 7, the valve body assembly 6 is in a closed state.

[0030] With such arrangement, the opening and closing of the valve body assembly 6 are controlled by pressure, the structure of the liquid distributor is simple, and the control and use are more convenient.

[0031] Furthermore, in some embodiments, the compressor can be placed in a variable capacity operation mode by adjusting the gas pressure of the air supply channel 7. Specifically, when the pressure of the gas flowing into the air supply channel 7 is greater than the gas pressure in the chamber 2, the valve body assembly 6 is in a closed state. Under this condition, if the pressure of the refrigerant gas flowing into the cylinder 10 through the air supply channel 7 is also greater than the gas pressure on the side of the flange 11 away from the cylinder 10, the exhaust valve on the flange 11 is always in an open state. At this time, the corresponding cylinder 10 is in a no-load operation state, and the compressor realizes variable capacity compression. Therefore, by controlling the intake pressure of the air supply channel 7 so that it is greater than both the gas pressure in the chamber 2 and the gas pressure on the side of the flange 11 away from the cylinder 10, the compressor is in a variable capacity compression mode.

[0032] For a compressor having only an upper cylinder and a lower cylinder, both the upper cylinder and the lower cylinder have three modes: air replenishment and enthalpy increase operation, single independent operation, and no-load operation. Then, the combination of the operation modes of the upper cylinder and the lower cylinder includes the following six modes: double air replenishment and enthalpy increase operation, double independent operation, double no-load operation, single air replenishment and enthalpy increase and single independent compression operation, single air replenishment and enthalpy increase and single no-load operation, and single independent compression and single no-load operation. Moreover, the various operation modes of the compressor can be realized by controlling the air replenishment pressure of the air replenishment channel 7 of the liquid distributor, without the need for additional components.

[0033] In this embodiment, each exhaust pipe 4 is provided with a valve body assembly 6 and an air supply channel 7, and each cylinder 10 of the compressor has three modes of air supply enthalpy increase operation, single independent compression operation and no-load operation. The operation modes of each cylinder 10 are combined so that the compressor has multiple operation modes. Each exhaust pipe 4 is provided with at least two air inlets 5, and each air inlet 5 is provided with a valve body assembly 6. Specifically, the number of air inlets 5 on each exhaust pipe 4 can be two, three, four, etc. When the compressor has two cylinders 10, the compressor has six operation modes. In the case where the compressor has three or more cylinders 10, the compressor has more operation modes.

[0034] With such arrangement, the compressor has multiple operation modes, and the change of the compressor operation mode can be achieved by adjusting the intake pressure of the air supply channel 7; at least two air inlets 5 are arranged on the exhaust pipe 4, so that the exhaust pipe 4 has sufficient intake volume.

[0035] In this embodiment, the valve body assembly 6 includes a one-way valve plate 61 and a baffle plate 62. The one-way valve plate 61 is arranged at the air inlet 5 and is assembled with the air inlet 5. The baffle plate 62 is arranged on the inner wall of the exhaust pipe 4 and is arranged corresponding to the one-way valve plate 61. The one-way valve plate 61 moves relative to the air inlet 5 under the thrust exerted by the refrigerant gas, so that the air inlet 5 is connected from the chamber 2 to the exhaust pipe 4. A gap 9 is provided between the baffle plate 62 and the air inlet 5 for the refrigerant gas to flow through.

[0036] Specifically, the one-way valve plate 61 can be connected to the edge of the air inlet 5 by a torsion spring or the like, and the refrigerant gas in the chamber 2 applies thrust to the one-way valve plate 61, so that the one-way valve plate 61 moves into the exhaust pipe 4 and can be reset under the drive of the torsion spring. Of course, in some other embodiments, a step groove extending along the circumference of the air inlet 5 can also be provided on the inner wall of the exhaust pipe 4, and the one-way valve plate 61 is provided in the step groove, and moves into the exhaust pipe 4 under the thrust of the refrigerant gas in the chamber 2, and can be reset under the thrust of the refrigerant gas input from the air replenishment channel 7, and will not move to the outside of the exhaust pipe 4 under the obstruction of the groove wall of the step groove, and the baffle 62 can prevent the one-way valve plate 61 from detaching from the air inlet 5 when moving into the exhaust pipe 4. The arrangement of the valve plate assembly is not limited to the above-mentioned assembly method, and it is sufficient to realize one-way conduction from the chamber 2 to the exhaust pipe 4 under the thrust of the refrigerant gas.

[0037] With such arrangement, the valve body assembly 6 has a simple structure and is easy to produce and assemble. At the same time, it can realize unidirectional conduction of the air inlet 5 from the chamber 2 to the exhaust pipe 4 under the thrust of the refrigerant gas.

[0038] Furthermore, one end of the baffle 62 is connected to the exhaust pipe 4 via a fastener 8, and the other end is bent toward the inside of the exhaust pipe 4, so that a gap 9 for the refrigerant gas to flow through is formed between the baffle 62 and the air inlet 5. Specifically, the fastener 8 can be, but is not limited to, a rivet, a bolt, or the like.

[0039] In this embodiment, the exhaust pipe 4 includes an outer pipe section 41 disposed outside the cylinder 1 and an inner pipe section 42 extending into the chamber 2, and the outer pipe section 41 of the exhaust pipe 4 is connected to the cylinder 10 of the compressor. Each air inlet 5 of the exhaust pipe 4 is disposed on the peripheral side wall of the inner pipe section 42.

[0040] In this way, the air inlet 5 is arranged on the peripheral side wall of the exhaust pipe 4, which can prevent impurities and liquid refrigerant in the air inlet pipe 3 from directly entering the exhaust pipe 4, and further prevent the cylinder 10 of the compressor from being damaged by liquid hammer and other problems. Preferably, the air inlets 5 of the exhaust pipe 4 are evenly distributed to ensure that the cylinder 10 has sufficient air intake and can evenly intake air.

[0041] In this embodiment, the distance between the air inlet 5 and the outlet end 31 of the air inlet pipe 3 is smaller than the distance between the connection position of the air supply channel 7 and the exhaust pipe 4 and the outlet end 31 of the air inlet pipe 3. The outlet end 31 of the air inlet pipe 3 is the end of the air inlet pipe 3 extending into the chamber 2. In other words, the air inlet 5 is arranged above the air supply channel 7. In this arrangement, the gas flowing into the air inlet pipe 3 can flow smoothly into the air inlet 5, ensuring that the cylinder 10 has sufficient air intake.

[0042] The following content specifically describes the present liquid distributor in combination with the above-mentioned embodiments. In this embodiment, the liquid distributor includes a cylinder 1, an air inlet pipe 3 arranged on the cylinder 1, and an exhaust pipe 4 connected to the upper cylinder and the lower cylinder of the compressor in a one-to-one correspondence. Each exhaust pipe 4 is provided with an air supply channel 7 and at least two air inlets 5 on the peripheral side wall, and each air inlet 5 of each exhaust pipe 4 is provided with a valve body assembly 6. The air supply channel 7 passes through the cylinder 1 and is connected to the air supply source. The valve body assembly 6 includes a one-way valve plate 61 matched with the air inlet 5 and a baffle 62 arranged in the exhaust pipe 4 and corresponding to the one-way valve plate 61. One end of the baffle 62 is connected to the exhaust pipe 4 by rivets, and the other end is bent toward the inside of the exhaust pipe 4, so that a gap 9 is provided between the baffle 62 and the air inlet 5. When the gas pressure of the intake pipe 3 is greater than the gas pressure of the air supply channel 7, the one-way valve plate 61 moves into the exhaust pipe 4, so that the air inlet 5 is unidirectionally conducted from the chamber 2 to the exhaust pipe 4.

[0043] When the gas pressure of the intake pipe 3 is greater than the gas pressure of the air supply channel 7, the valve body assembly 6 opens, and the gas in the chamber 2 and the gas in the air supply channel 7 both enter the corresponding cylinder 10, and the cylinder 10 is in the air supply and enthalpy increase operation mode. When the gas pressure of the air supply channel 7 is greater than the gas pressure of the intake pipe 3, the valve body assembly 6 is closed, and only the gas in the air supply channel 7 enters the corresponding cylinder 10 for compression, and the cylinder 10 is in a single independent compression operation mode. When the gas pressure of the air supply channel 7 is greater than the gas pressure of the intake pipe 3 and greater than the gas pressure on the side of the flange 11 away from the cylinder 10, the exhaust valve of the flange 11 is in a normally open state, and the cylinder 10 is in a no-load operation state. Both the upper cylinder and the lower cylinder of the compressor have three operating modes: air-injection and reheat-increasing operation, single independent compression operation, and no-load operation. Therefore, the operating states of the upper cylinder and the lower cylinder are combined to enable the compressor to have six modes: double air-injection and reheat-increasing operation, double independent operation, double no-load operation, single air-injection and reheat-increasing single independent compression operation, single no-load and single air-injection and reheat-increasing operation, and single no-load and single independent compression operation.

[0044] With such an arrangement, various operating modes of the compressor can be achieved by controlling the air supply pressure of the air supply channel 7 of the liquid distributor, without adding additional components to control the movement of the slide or adding a liquid distributor, etc., thereby improving the reliability of the compressor, reducing the assembly requirements of the compressor, and helping to improve the assembly efficiency of the compressor.

[0045] The present invention also provides a compressor, which includes a cylinder 10 and a liquid distributor, and the liquid distributor is the liquid distributor in the above embodiment. Figure 2 The compressor is provided with at least two cylinders 10, the exhaust pipe 4 of the liquid distributor is connected to Figure 2The inlet end of the cylinder 10 of the middle compressor is connected, and each exhaust pipe 4 is connected to the cylinder 10 in a one-to-one correspondence. With such a configuration, the multi-mode operation of the compressor can be controlled by the liquid distributor, and the opening and closing of the valve body assembly 6 can be controlled by adjusting the intake pressure of the air supply channel 7 to control the operation state of the corresponding cylinder 10, so that the cylinder 10 can perform air supply enthalpy increase operation and independent operation, and the compressor does not need to be controlled by additional components, thereby improving the reliability of the compressor, making the structure of the compressor simpler, and helping to improve the assembly efficiency of the compressor. The derivation process of this beneficial effect is generally similar to the derivation process of the beneficial effect brought by the liquid distributor, so it will not be repeated in this article.

[0046] In the preferred solution of this embodiment, the compressor includes a flange 11 corresponding to each cylinder 10, each flange 11 is provided with an exhaust valve for exhausting the compressed gas in the corresponding cylinder 10, the cylinder 10 connected to the exhaust pipe 4 provided with the air supply channel 7 is a variable volume cylinder, and the flange 11 of at least one variable volume cylinder is provided with a gas path 12 correspondingly, and the gas path 12 is used to transport the refrigerant gas to the side of the flange 11 away from the variable volume cylinder. When the gas pressure of the gas path 12 is less than the gas pressure in the corresponding variable volume cylinder, the exhaust valve on the corresponding flange 11 is in an open state.

[0047] Specifically, a compressor with two cylinders 10 is used as an example for explanation. The cylinders 10 of the compressor are an upper cylinder and a lower cylinder. The upper end of the upper cylinder is provided with an upper flange, and the lower end of the lower cylinder is provided with a lower flange. An air supply channel 7 is provided on the exhaust pipe 4 corresponding to one of the cylinders 10. The cylinder 10 is a variable displacement cylinder. The exhaust side of the flange 11 of the variable displacement cylinder is provided with an air path 12. The air path 12 transports refrigerant gas to the side of the flange 11 away from the variable displacement cylinder. When the gas pressure of the air path 12 is less than the gas pressure in the variable displacement cylinder, the exhaust valve on the flange 11 is in an open state. At this time, the variable displacement cylinder is in a no-load operation state, and the compressor is in a variable displacement operation mode.

[0048] If both exhaust pipes of the compressor have an air supply channel 7 and a valve body assembly 6, the upper cylinder and the lower cylinder of the compressor are both variable displacement cylinders. The gas circuit 12 of the compressor includes a first gas circuit for conveying refrigerant gas to the side of the upper flange away from the upper cylinder and / or a second gas circuit for conveying refrigerant gas to the side of the lower flange away from the lower cylinder. That is, the first gas circuit is connected to the exhaust side of the upper flange, and the second gas circuit is connected to the exhaust side of the lower flange. Specifically, the compressor may include only one of the first gas circuit and the second gas circuit, or may include both the first gas circuit and the second gas circuit; that is, the flange 11 of at least one variable displacement cylinder of the compressor is correspondingly provided with a gas circuit 12. When the gas pressure of the first gas circuit is small, so that the gas pressure on the side of the upper flange away from the upper cylinder is less than the gas pressure in the upper cylinder, the exhaust valve of the upper flange is in a normally open state; similarly, when the gas pressure of the second gas circuit is small, so that the gas pressure on the side of the lower flange away from the lower cylinder is less than the gas pressure in the lower cylinder, the exhaust valve of the lower flange is in a normally open state.

[0049] When the exhaust pipe 4 connected to the upper cylinder is supplied with gas only through the supplementary air source, that is, the valve body assembly 6 is in a closed state, at this time, the refrigerant gas with a supply pressure lower than the supplementary air source is introduced through the first gas path to the side of the upper flange away from the upper cylinder, and the gas pressure on the exhaust side of the upper flange is less than the gas pressure in the upper cylinder, then the exhaust valve of the upper cylinder is in a normally open state, and the upper cylinder runs without load. Similarly, when the exhaust pipe 4 connected to the lower cylinder is supplied with gas only through the supplementary air source, the refrigerant gas with a supply pressure lower than the supplementary air source is introduced through the second gas path to the side of the lower flange away from the lower cylinder, and the gas pressure on the exhaust side of the lower flange is less than the gas pressure in the lower cylinder, then the exhaust valve of the lower cylinder is in a normally open state, and the lower cylinder runs without load. At this time, the compressor is in a variable capacity compression state. If the compressor is only provided with the first gas circuit or the second gas circuit, one of the cylinders 10 of the compressor can achieve no-load operation through the pressure control of the gas circuit 12; if the compressor is provided with both the first gas circuit and the second gas circuit, both cylinders 10 of the compressor can achieve no-load operation through the pressure control of the gas circuit 12.

[0050] With such arrangement, the opening and closing of the valve body assembly 6 are controlled by adjusting the gas pressure in the air supply channel 7. At the same time, the variable capacity operation of the compressor is realized in combination with the gas pressure adjustment of each gas path 12. No additional components are required to control the movement of the slide, thus avoiding the problems of reduced reliability of the compressor and increased assembly requirements due to the addition of additional components to the compressor.

[0051] It should be noted that the first gas path and the second gas path can be channels respectively arranged inside the upper flange and the lower flange, and the gas source can be connected to one end of the channel by penetrating into the compressor shell through a pipeline, and the other end of the channel is connected to the side of the flange 11 away from the cylinder 10; or it can be directly arranged as a pipeline passing through the compressor shell to the side of the flange 11 away from the cylinder 10, and the pipeline is connected to the gas source. Of course, the gas path 12 can also be arranged in other ways, as long as each gas path 12 can pass gas to the side of the corresponding flange 11 away from the cylinder 10.

[0052] Moreover, the air supply source may be a flash evaporator of the air conditioner, and at the same time, the first gas path and the second gas path are also connected to the flash evaporator. A first valve body is arranged between the flash evaporator and the air supply channel 7, and a second valve body is arranged between the first gas path, the second gas path and the flash evaporator respectively, and the air supply pressure in the air supply channel 7 is adjusted by the first valve body, and the refrigerant gas pressure in the gas path 12 is adjusted by the second valve body. The first valve body and the second valve body may be, but are not limited to, electronic expansion valves.

[0053] Of course, in other embodiments, the air supply source can also be an external air source, and the air supply pressure of the air supply source can be manually controlled. By adjusting the air supply pressure of the air supply source, the air supply pressure of the air supply source can be greater than the intake pressure of the intake pipe 3 and greater than the gas pressure on the exhaust side of the flange 11. The variable capacity compression operation of the compressor can be achieved without setting the first air path and the second air path.

[0054] The present invention also provides an air conditioner, including a compressor, which is the compressor in the above embodiment, and the exhaust pipe 4 of the liquid distributor is connected to the cylinder 10 of the compressor in a one-to-one correspondence. With such an arrangement, the compressor of the air conditioner has a plurality of operating modes, and can be realized by controlling the gas pressure of the air supply channel 7 and each gas path 12, without the need for additional components to control the movement of the slide, and without the need for additional liquid distributors, etc., thereby improving the reliability of the compressor, reducing the assembly requirements of the compressor, and helping to improve the assembly efficiency of the compressor. At the same time, the compressor has a plurality of operating modes, which can be applied to a variety of working conditions of the air conditioner, and is helpful to reduce the energy consumption of the air conditioner. The derivation process of this beneficial effect is generally similar to the derivation process of the beneficial effects brought about by the liquid distributor and the compressor, so it will not be repeated in this article.

[0055] In a preferred solution of the present embodiment, the air conditioner includes a flash evaporator, the air supply channel 7 is connected to the flash evaporator, and a first valve body is provided between the flash evaporator and the air supply channel 7. The first valve body may be, but is not limited to, an electronic expansion valve. The air supply pressure of the air supply channel 7 is adjusted by the first valve body. When the gas pressure of the air supply channel 7 is less than the gas pressure of the air intake pipe 3, the valve body assembly 6 is opened; when the gas pressure of the air supply channel 7 is greater than the gas pressure of the air intake pipe 3, the valve body assembly 6 is closed.

[0056] Furthermore, the cylinder 10 connected to the exhaust pipe 4 provided with the air supply channel 7 is a variable displacement cylinder, and the compressor includes a gas path 12 arranged in a one-to-one correspondence with the flange 11 of at least one variable displacement cylinder, and the gas path 12 transports the refrigerant gas to the side of the flange 11 away from the variable displacement cylinder, and each gas path 12 is connected to the flash evaporator, and a second valve body is provided between each gas path 12 and the flash evaporator. For a compressor having an upper cylinder and a lower cylinder, the gas path 12 includes a first gas path for passing the refrigerant gas to the upper space of the upper cylinder and / or a second gas path for passing the refrigerant gas to the lower space of the lower cylinder, and the first gas path and the second gas path are connected to the flash evaporator respectively, and a second valve body is provided between the first gas path and the flash evaporator, and between the second gas path and the flash evaporator, and the gas pressure in the first gas path and the second gas path is adjusted by the second valve body. Among them, the second valve body can be, but is not limited to, an electronic expansion valve. When the valve body assembly 6 is closed and low-pressure gas is delivered to the side of the flange 11 away from the cylinder 10 through the gas path 12, if the gas pressure of the gas supplement channel 7 is greater than the gas pressure on the exhaust side of the flange 11, the corresponding cylinder 10 is in a no-load operation state, realizing the variable capacity operation of the compressor. If the compressor is only provided with the first gas path or the second gas path, one of the cylinders 10 of the compressor can realize no-load operation through the pressure control of the gas path 12; if the compressor is provided with both the first gas path and the second gas path, both cylinders 10 of the compressor can realize no-load operation through the pressure control of the gas path 12.

[0057] With such arrangement, the air supply channel 7 and each gas circuit 12 are supplied with air by the flash evaporator, the structure of the air conditioner is simple, and the various operation modes of the compressor can be realized by controlling the gas pressure of the air supply channel 7 and each gas circuit 12, without adding components such as a liquid distributor, thereby improving the reliability and assembly efficiency of the compressor.

[0058] It is understood that the same or similar parts in the above embodiments can refer to each other, and the content not described in detail in some embodiments can refer to the same or similar content in other embodiments. The multiple solutions provided by the present invention include the basic solution itself, which are independent of each other and do not restrict each other, but they can also be combined with each other without conflict to achieve multiple effects together.

[0059] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A liquid dispenser, characterized in that: The invention comprises a cylinder (1) having a chamber (2) inside, an air intake pipe (3) arranged on the cylinder (1), and at least two exhaust pipes (4), each of the exhaust pipes (4) being arranged on the cylinder (1) and being provided with an air intake port (5) communicating with the chamber (2), the air intake port (5) of at least one of the exhaust pipes (4) being provided with a valve body assembly (6) for unidirectional communication from the chamber (2) to the exhaust pipe (4), and the exhaust pipe (4) being further provided with an air supply channel (7), the air supply channel (7) passing through the cylinder (1) and being connected with an air supply source.

2. The liquid dispenser according to claim 1, characterized in that When the gas pressure of the air inlet pipe (3) is greater than the gas pressure of the air supplement channel (7), the valve body assembly (6) opens to allow one-way communication between the chamber (2) and the exhaust pipe (4).

3. The liquid dispenser according to claim 2, characterized in that: Each of the exhaust pipes (4) is provided with at least two of the air inlets (5), each of the air inlets (5) is provided with the valve body assembly (6), and each of the exhaust pipes (4) is provided with the air supply channel (7).

4. The liquid dispenser according to claim 2, characterized in that: The valve body assembly (6) comprises a one-way valve plate (61) matched with the air inlet (5) and a baffle plate (62) arranged on the inner wall of the exhaust pipe (4) and arranged corresponding to the one-way valve plate (61); the one-way valve plate (61) moves relative to the air inlet (5) so that the air inlet (5) is connected from the chamber (2) to the exhaust pipe (4); and a gap (9) is provided between the baffle plate (62) and the air inlet (5).

5. The liquid dispenser according to claim 1, characterized in that: The distance between the air inlet (5) and the outlet end (31) of the air inlet pipe (3) is smaller than the distance between the connection position of the air supply channel (7) on the exhaust pipe (4) and the outlet end (31) of the air inlet pipe (3).

6. A compressor, characterized in that: It comprises a liquid dispenser, wherein the liquid dispenser is the liquid dispenser as described in any one of claims 1 to 5.

7. The compressor according to claim 6, characterized in that Each of the exhaust pipes (4) is connected to the cylinder (10) of the compressor in a one-to-one correspondence, and each of the cylinders (10) is provided with a flange (11). The flange (11) is provided with an exhaust valve for discharging the compressed gas in the corresponding cylinder (10). The cylinder (10) correspondingly connected to the exhaust pipe (4) provided with the air supply channel (7) is a variable volume cylinder. The compressor also includes an air path (12) arranged in a one-to-one correspondence with the flange (11) of at least one of the variable volume cylinders, and the air path (12) is used to transport refrigerant gas to the side of the flange (11) away from the corresponding variable volume cylinder; when the gas pressure of the air path (12) is lower than the gas pressure in the corresponding variable volume cylinder, the exhaust valve of the flange (11) is in an open state.

8. An air conditioner, characterized in that: It comprises a compressor, wherein the compressor is the compressor according to any one of claims 6 and 7.

9. The air conditioner according to claim 8, characterized in that: It also comprises a flash evaporator, which is connected to the gas supplement channel (7), and a first valve body for adjusting the gas pressure in the gas supplement channel (7) is provided between the flash evaporator and the gas supplement channel (7).

10. The air conditioner according to claim 9, characterized in that: Each of the exhaust pipes (4) is connected to the cylinder (10) of the compressor in a one-to-one correspondence, and each of the cylinders (10) is provided with a flange (11). The flange (11) is provided with an exhaust valve for discharging the compressed gas in the corresponding cylinder (10). The cylinder (10) connected to the exhaust pipe (4) provided with the air supply channel (7) is a variable volume cylinder. The compressor also includes an air path (12) arranged in a one-to-one correspondence with the flange (11) of at least one of the variable volume cylinders, and the air path (12) is used to transport refrigerant gas to the side of the flange (11) away from the corresponding variable volume cylinder; each of the air paths (12) is connected to the flash evaporator, and a second valve body for adjusting the gas pressure in the air path (12) is provided between each of the air paths (12) and the flash evaporator.

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