A gas supplement assembly, a rotary compressor and an air conditioner

Abstract

The application provides a gas supplement assembly, a rotor compressor and an air conditioner. The gas supplement assembly comprises a gas supplement member and a one-way valve. A wall surface of the gas supplement member is formed with N gas supplement member outlets and one gas supplement member inlet. N gas supplement channels are sequentially arranged in the gas supplement member. The N gas supplement channels and the N gas supplement member outlets are in one-to-one correspondence and communication. One of the N gas supplement channels is in communication with the gas supplement member inlet. Two of the N gas supplement channels are in communication through a gas supplement connection channel. N-1 one-way valves are arranged in the N-1 gas supplement connection channels in one-to-one correspondence. N is a positive integer, and N is greater than or equal to 2. When the rotor compressor is in different working conditions, different positions of the one-way valves or different numbers of the one-way valves can be opened. The gas supplement amount is sufficient, the gas supplement range is large, various environmental requirements can be met, the efficiency of the compressor is improved, the cost is reduced, the user experience is improved, and the competitiveness of the rotor compressor is improved.

Description

Technical Field

[0001] This invention belongs to the field of compressor technology, and particularly relates to a gas injection component, a rotary compressor, and an air conditioner. Background Technology

[0002] When conventional compressors are used in high-temperature cooling and low-temperature heating environments, the cooling and heating effects are poor due to the harsh environment. Therefore, a gas injection structure to increase enthalpy is often used to address this issue. In high-temperature cooling, intermediate gas injection reduces the proportion of gaseous refrigerant entering the evaporator, thereby lowering the enthalpy of the refrigerant entering the evaporator and increasing the cooling capacity. In low-temperature heating, the suction refrigerant density is low, and intermediate gas injection increases the amount of refrigerant entering the compressor, thus increasing heating capacity. One approach proposes setting multiple gas injection channels within the compressor body, each with a one-way valve and a different opening pressure. When airflow is introduced into a gas injection channel and the airflow pressure exceeds the opening pressure of the one-way valve, the channel is connected. However, this solution is structurally complex, cannot achieve simultaneous gas injection through multiple channels, has a narrow injection range, and a limited injection volume, making it unsuitable for various environmental requirements. Summary of the Invention

[0003] In view of this, the present invention provides an air replenishment component, a rotary compressor, and an air conditioner to solve the problems of complex air replenishment structure, narrow air replenishment range, limited air replenishment volume, and inability to meet various environmental needs in the prior art.

[0004] This invention provides a gas replenishment assembly for replenishing the enthalpy of a rotary compressor; the gas replenishment assembly includes:

[0005] An air supply component has N air supply outlets and one air supply inlet on its wall surface. The interior of the air supply component has N sequentially arranged air supply channels. Each of the N air supply channels is connected to one of the N air supply outlets. Only one of the N air supply channels is connected to the air supply inlet. One of the N air supply channels is connected to one of the other N-1 air supply channels via an air supply connection channel.

[0006] The system includes N-1 one-way valves, each corresponding to one of the N-1 gas supply connection channels. When the gas pressure in the upstream gas supply channel is greater than that in the downstream gas supply channel, the one-way valve in that channel opens. When the gas pressure in the upstream gas supply channel is less than or equal to that in the downstream gas supply channel, the one-way valve closes.

[0007] N-1 of the one-way valves can be controlled to open one or X valves according to the gas pressure in the compression chamber of the rotary compressor and the gas supply pressure in the gas supply channel;

[0008] Where N and X are both positive integers, and 2≤X≤N.

[0009] Further optionally, the lower the gas pressure in the compression chamber of the rotor compressor, the more one-way valves among the N-1 one-way valves are open.

[0010] Further optionally, the air supply component has a plate-shaped structure and is annular; the wall surface of the air supply component includes an axial wall surface, an outer peripheral wall surface and an inner peripheral wall surface, the axial wall surface forms N air supply component outlets, each air supply component outlet is disposed close to the inner peripheral wall surface; the outer peripheral wall surface forms the air supply component inlet;

[0011] The air supply channel extends from the outer peripheral wall towards the inner peripheral wall.

[0012] Further optionally, the N air supply channels include a first air supply channel, a second air supply channel, ..., an Nth air supply channel, and the N air supply channels are arranged sequentially in the manner of the first air supply channel, the second air supply channel, ..., an Nth air supply channel; the N-1 air supply connection channels include a first air supply connection channel, a second air supply connection channel, ..., an N-1th air supply connection channel, and the N-1 air supply connection channels are arranged sequentially in the manner of the first air supply connection channel, the second air supply connection channel, ..., an N-1th air supply connection channel.

[0013] Each of the air replenishment channels has an air inlet and an air outlet that are arranged opposite to each other. The first air replenishment channel, the second air replenishment channel, ..., the (N-1)th air replenishment channel all have a connecting port, which is located between the corresponding air inlet and air outlet.

[0014] The air inlet of the first air replenishment channel is connected to the air replenishment component inlet, and the air outlets of the N air replenishment channels are connected one-to-one with the air replenishment component outlets; the connection port of the first air replenishment channel and the air inlet of the second air replenishment channel are connected through the first air replenishment connection channel, the connection port of the second air replenishment channel and the air inlet of the third air replenishment channel are connected through the second air replenishment connection channel, ..., the connection port of the (N-1)th air replenishment channel and the air inlet of the Nth air replenishment channel are connected through the (N-1)th air replenishment connection channel.

[0015] Further optionally, the N air supply channels include a first air supply channel, a second air supply channel, ..., an Nth air supply channel, and the N air supply channels are arranged sequentially in the manner of the first air supply channel, the second air supply channel, ..., an Nth air supply channel; the N-1 air supply connection channels include a first air supply connection channel, a second air supply connection channel, ..., an N-1th air supply connection channel, and the N-1 air supply connection channels are arranged sequentially in the manner of the first air supply connection channel, the second air supply connection channel, ..., an N-1th air supply connection channel.

[0016] Each of the aforementioned air supply channels has an air inlet and an air outlet that are arranged opposite to each other;

[0017] The air inlet of the first air replenishment channel is connected to the air replenishment component inlet, and the air outlets of the N air replenishment channels are connected one-to-one with the air replenishment component outlets; the air inlet of the first air replenishment channel and the air inlet of the second air replenishment channel are connected through the first air replenishment connection channel, the air inlet of the second air replenishment channel and the air inlet of the third air replenishment channel are connected through the second air replenishment connection channel, ..., the air inlet of the (N-1)th air replenishment channel and the air inlet of the Nth air replenishment channel are connected through the (N-1)th air replenishment connection channel.

[0018] Further optionally, the center point of the air supply component is point O, and a dividing line c is drawn through point O. The dividing line c is used to divide the high-pressure chamber and the low-pressure chamber.

[0019] The center point of the outlet of the air supply component connected to the first air supply channel is point A1, the center point of the outlet of the air supply component connected to the second air supply channel is point A2, ..., and the center point of the outlet of the air supply component connected to the Nth air supply channel is point A. N Draw position line b1 through points O and A1, draw position line b2 through points O and A2, ..., draw position line b1 through points O and A2. N Draw position line b N The angle between position line b1 and dividing line c is α1, the angle between position line b2 and dividing line c is α2, ..., the angle between position line b1 and dividing line c is α2, ..., the angle between position line b1 and dividing line c is α1. N The angle between the dividing line c and the dividing line is α. N ;

[0020] The α1, α2, ..., α N Satisfying: α1>α2>......α N .

[0021] Further optionally, the distance between point A1 and the dividing line c is s1, the distance between point A2 and the dividing line c is s2, ..., the distance between point A...N The distance between the dividing line c and the dividing line c is s. N ;

[0022] The s1, s2, ..., s N Satisfying: s1≥s2≥......s N .

[0023] The present invention also provides a rotary compressor, including a compression chamber, a gas supply connector, and a gas supply assembly as described in any one of the above claims; a rotatable roller is provided in the compression chamber, each gas supply outlet is connected to the compression chamber, the gas supply inlet is connected to one end of the gas supply connector, and the other end of the gas supply connector is used to connect to a flash evaporator;

[0024] When the gas pressure in the compression chamber is less than the gas replenishment pressure in the gas replenishment channel, the corresponding one-way valve can be opened.

[0025] The number of times the one-way valve opens varies depending on the position of the roller.

[0026] When the rotary compressor is a single-cylinder rotary compressor, the air supply component is an upper flange or a lower flange;

[0027] When the rotary compressor is a twin-cylinder rotary compressor, the air supply component is an upper flange, a lower flange, or a partition.

[0028] Further optionally, the position line b N The smaller the angle between the dividing line c and the gas pressure in the compression chamber, the greater the gas pressure in the compression chamber and the smaller the pressure difference between the gas pressure in the compression chamber and the exhaust pressure of the compression chamber.

[0029] The present invention also provides an air conditioner, including a refrigeration system, the refrigeration system including a flash evaporator, a gas injection connector and a rotary compressor as described in any one of the above; the gas injection inlet and the flash evaporator are connected through the gas injection connector.

[0030] Compared with the prior art, the main advantages of the present invention are as follows:

[0031] The wall of the air supply component has N air supply outlets and one air supply inlet, and the interior of the air supply component has N sequentially arranged air supply channels. The N air supply channels and N air supply outlets are connected one-to-one, and one air supply channel is connected to the air supply inlet. Two air supply channels are connected through an air supply connection channel, and each air supply connection channel is equipped with a one-way valve. When the rotary compressor is under different operating conditions, the one-way valves at different positions or different numbers of one-way valves can be opened, ensuring sufficient air supply and a wide air supply range, adapting to various environmental needs, improving the efficiency of the compressor, reducing costs, improving user experience, and enhancing the competitiveness of the rotary compressor. Attached Figure Description

[0032] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0033] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0034] Figure 1 and Figure 2 This is a schematic diagram of the structure of the air replenishment component in Embodiment 1 provided by the present invention;

[0035] Figure 3 This is a schematic diagram of the principle of the one-way valve embodiment 1 provided by the present invention;

[0036] Figure 4 This is a schematic diagram of the compressor structure of Embodiment 1 provided by the present invention;

[0037] Figure 5 and Figure 6 This is a schematic diagram of the structure of the air replenishment component in Embodiment 2 provided by the present invention;

[0038] Figure 7 This is a schematic diagram of the structure of embodiment 3 of the air replenishment component provided by the present invention;

[0039] Figure 8 This is a schematic diagram illustrating the principle of an embodiment of the refrigeration system provided by the present invention;

[0040] In the picture:

[0041] 1-Air supply component; 11-Axial wall surface; 111-Air supply component outlet; 12-Outer peripheral wall surface; 121-Air supply component inlet; 13-Inner peripheral wall surface; 141-First air supply channel; 142-Second air supply channel; 143-Third air supply channel; 151-First air supply connection channel; 152-Second air supply connection channel;

[0042] 2-Check valve; 21-Valve disc;

[0043] 31-Gas-liquid separator; 311-Gas-liquid separator inlet; 32-Maintenance gas connector; 33-Flash evaporator; 34-Outdoor heat exchanger; 35-Four-way reversing valve; 351-First valve port; 352-Second valve port; 353-Third valve port; 354-Fourth valve port; 36-Indoor heat exchanger; 371-First throttling device; 372-Second throttling device;

[0044] 411-Upper cover; 412-Lower cover; 413-Housing shell; 42-Drive motor; 431-Upper flange; 432-Upper cylinder; 433-Baffle; 434-Lower cylinder; 435-Lower flange; 441-Long shaft; 442-Upper eccentric shaft; 443-Transition shaft; 444-Lower eccentric shaft; 445-Short shaft; 451-Upper roller; 452-Lower roller; 461-First intake pipe; 462-Second intake pipe; 47-Exhaust pipe; 48-Base;

[0045] 51-First refrigerant pipe; 52-Second refrigerant pipe; 53-Third refrigerant pipe; 54-Fourth refrigerant pipe; 55-Fifth refrigerant pipe. Detailed Implementation

[0046] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] The terminology used in the embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms “a,” “the,” and “the” used in the embodiments of this invention and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. “Multiple” generally includes at least two, but does not exclude the inclusion of at least one.

[0048] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0049] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0050] In existing technologies, multiple air supply channels are set up in the main body, and one-way valves are set in each air supply channel, with different opening pressures for the one-way valves. When air is introduced into the air supply channel and the air pressure is greater than the opening pressure of the one-way valve, the air supply channel is connected. However, this solution has a complex structure, cannot achieve simultaneous air supply from multiple air supply channels, has a narrow air supply range, and a limited air supply volume. It cannot be adapted to various environmental requirements and is not conducive to improving the competitiveness of the rotary compressor.

[0051] This invention creatively provides a gas replenishment assembly for replenishing enthalpy in a rotary compressor. The gas replenishment assembly includes a gas replenishment component and a one-way valve. The wall of the gas replenishment component has N gas replenishment outlets and one gas replenishment inlet, and the interior of the gas replenishment component has N gas replenishment channels. The N gas replenishment channels and the N gas replenishment outlets are connected in a one-to-one correspondence, and one gas replenishment channel is connected to the gas replenishment inlet. Two gas replenishment channels are connected through a gas replenishment connection channel. Each gas replenishment connection channel is provided with a one-way valve. Wherein, N is a positive integer and N≥2.

[0052] When the rotary compressor is in different operating conditions, the one-way valves in different positions or in different numbers can be opened, ensuring sufficient gas supply and a wide gas supply range, which can adapt to various environmental needs.

[0053] Example 1

[0054] <Qi Replenishment Component>

[0055] like Figures 1 to 3 As shown, this embodiment provides a gas replenishment assembly for replenishing the enthalpy of a rotary compressor. The rotary compressor includes a compression chamber and a gas replenishment connector 32; including:

[0056] The air supply component 1 has N air supply outlets 111 and one air supply inlet 121 formed on its wall surface. The N air supply outlets 111 are all connected to the compression chamber, and the air supply inlet 121 is connected to the air supply connector 32. The interior of the air supply component 1 has N air supply channels arranged sequentially. The N air supply channels and the N air supply outlets 111 are connected in a one-to-one correspondence. Only one of the N air supply channels is connected to the air supply inlet 121. One of the N air supply channels is connected to one of the other N-1 air supply channels through the air supply connector. Preferably, two adjacent air supply channels are connected through the air supply connector.

[0057] There are N-1 one-way valves 2, which are arranged one-to-one in the N-1 gas supply connection channels. The opening pressures of the N-1 one-way valves 2 can be the same or different. When the gas pressure in the upstream gas supply channel is greater than the gas pressure in the downstream gas supply channel, the one-way valve 2 in the gas supply connection channel opens. When the gas pressure in the upstream gas supply channel is less than or equal to the gas pressure in the downstream gas supply channel, the one-way valve 2 in the gas supply connection channel closes.

[0058] N-1 check valves 2 can be controlled to open one or X valves according to the gas pressure in the compression chamber of the rotary compressor and the gas supply pressure in the gas supply channel;

[0059] Where N and X are both positive integers, and 2≤X≤N;

[0060] It should be noted that the opening pressure of the one-way valve 2 in this application refers to the airflow impact pressure when the valve plate 21 inside the one-way valve 2 is in the open position due to the airflow impact. In other words, the opening pressure refers to the minimum pressure value that makes the valve plate 21 in the open position.

[0061] When the gas supply pressure in the gas supply channel of check valve 2 near the gas supply inlet 121 is greater than the gas pressure in the compression chamber of check valve 2 near the gas supply outlet 111, check valve 2 opens; when the gas supply pressure in the gas supply channel of check valve 2 near the gas supply inlet 121 is less than the gas pressure in the compression chamber of check valve 2 near the gas supply outlet 111, check valve 2 closes.

[0062] During operation, the compressor opens and closes the one-way valve 2 by the rotation of rollers within the compression chamber. As the gas supply pressure varies and the rollers rotate to different positions, different numbers of one-way valves 2 can be opened, increasing the gas supply volume and expanding the gas supply range. Adjusting different gas supply channels improves the compressor's operating capacity and efficiency, reduces operating costs, enhances user experience, expands its application areas, makes it suitable for different user environments, and improves the product's competitiveness.

[0063] Preferably, the air supply component 1 can be the upper flange 431, the lower flange 435, or the partition 433 in the compressor.

[0064] Furthermore, the lower the gas pressure in the compression chamber of the rotary compressor, the more check valves 2 among the N-1 check valves 2 will be open.

[0065] This embodiment also proposes that the air supply component 1 has a plate-shaped structure and is circular; the wall surface of the air supply component 1 includes an axial wall surface 11, an outer peripheral wall surface 12 and an inner peripheral wall surface 13. The axial wall surface 11 is close to the compression chamber of the rotor compressor and has N air supply component outlets 111. Each air supply component outlet 111 is located close to the inner peripheral wall surface 13; the outer peripheral wall surface 12 has an air supply component inlet 121.

[0066] The air supply channel extends from the outer peripheral wall 12 toward the inner peripheral wall 13. It should be noted that the structure of the air supply channel is not limited and can be a straight structure, an arc structure, or an irregular shape. When the air supply channel is an irregular shape, it can be a square or a triangle.

[0067] Specifically, the N air supply channels include a first air supply channel 141, a second air supply channel 142, ..., an Nth air supply channel, and the N air supply channels are arranged sequentially in the manner of the first air supply channel 141, the second air supply channel 142, ..., an Nth air supply channel; the N-1 air supply connection channels include a first air supply connection channel 151, a second air supply connection channel 152, ..., an N-1th air supply connection channel, and the N-1 air supply connection channels are arranged sequentially in the manner of the first air supply connection channel 151, the second air supply connection channel 152, ..., an N-1th air supply connection channel.

[0068] Each air supply channel has an air inlet and an air outlet that are positioned opposite each other. The first air supply channel 141, the second air supply channel 142, ..., the N-1th air supply channel all have a connecting port, which is located between the corresponding air inlet and air outlet.

[0069] The air inlet of the first air supply channel 141 is connected to the air supply component inlet 121, and the air outlets of the N air supply channels are connected to the N air supply component outlets 111 in a one-to-one correspondence; the connection port of the first air supply channel 141 and the air inlet of the second air supply channel 142 are connected through the first air supply connection channel 151, the connection port of the second air supply channel 142 and the air inlet of the third air supply channel 143 are connected through the second air supply connection channel 152, ..., the connection port of the (N-1)th air supply channel and the air inlet of the Nth air supply channel are connected through the (N-1)th air supply connection channel;

[0070] Preferably, the air replenishment channel has a straight structure, and the first air replenishment channel 141, the second air replenishment channel 142, ..., the (N-1)th air replenishment channel are all parallel.

[0071] Gas outside the compressor can enter the first gas supply channel 141 through the gas supply inlet 121; when the one-way valve 2 in the first gas supply connection channel 151 is closed, the gas in the first gas supply channel 141 is discharged through the gas supply outlet 111 connected to the first gas supply channel 141; when the one-way valve 2 in the first gas supply connection channel 151 is opened, a part of the gas in the first gas supply channel 141 is discharged through the gas supply outlet 111 connected to the first gas supply channel 141, and another part of the gas in the first gas supply channel 141 enters the second gas supply channel 142 through the first gas supply connection channel 151.

[0072] When the one-way valve 2 in the second gas replenishment connection channel 152 is closed, the gas in the second gas replenishment channel 142 is discharged through the gas replenishment component outlet 111 connected to the second gas replenishment channel 142; when the one-way valve 2 in the second gas replenishment connection channel 152 is opened, a portion of the gas in the second gas replenishment channel 142 is discharged through the gas replenishment component outlet 111 connected to the second gas replenishment channel 142, and another portion of the gas in the second gas replenishment channel 142 enters the third gas replenishment channel 143 through the second gas replenishment connection channel 152; and so on.

[0073] When the one-way valve 2 in the N-1 replenishment channel is closed, the gas in the N-1 replenishment channel is discharged through the replenishment component outlet 111 connected to the N-1 replenishment channel; when the one-way valve 2 in the N-1 replenishment channel is opened, a portion of the gas in the N-1 replenishment channel is discharged through the replenishment component outlet 111 connected to the N-1 replenishment channel, and another portion of the gas in the N-1 replenishment channel enters the N replenishment channel through the N-1 replenishment channel; the gas in the N replenishment channel is discharged through the replenishment component outlet 111 connected to the N replenishment channel.

[0074] This embodiment also proposes that the center point of the air supply component 1 is point O, and a dividing line c is drawn through point O. The dividing line c is used to divide the high-pressure chamber and the low-pressure chamber.

[0075] The center point of the outlet 111 of the air supply component connected to the first air supply channel 141 is point A1, the center point of the outlet 111 of the air supply component connected to the second air supply channel 142 is point A2, ..., and the center point of the outlet 111 of the air supply component connected to the Nth air supply channel is point A. N Draw position line b1 through points O and A1, and position line b2 through points O and A2, ..., through points O and A1. N Draw position line b N The angle between position line b1 and dividing line c is α1, the angle between position line b2 and dividing line c is α2, ..., position line b N The angle between the dividing line c and the dividing line is α. N ;

[0076] α1, α2, ..., α N Satisfying: α1>α2>......α N .

[0077] Furthermore, the distance between point A1 and the dividing line c is s1, the distance between point A2 and the dividing line c is s2, ..., the distance between point A... N The distance between the dividing line c and the dividing line c is s. N ;

[0078] s1, s2, ..., s N Satisfying: s1≥s2≥......s N .

[0079] In this embodiment, N=2; the two air supply channels include a first air supply channel 141 and a second air supply channel 142, and the first air supply channel 141 and the second air supply channel 142 are arranged alternately in a clockwise direction; both the first air supply channel 141 and the second air supply channel 142 have a connecting port, the connecting port of the first air supply channel 141 is located between the air inlet end and the air outlet end of the first air supply channel 141, and the connecting port of the second air supply channel 142 is located between the air inlet end and the air outlet end of the second air supply channel 142; the connecting port of the first air supply channel 141 and the second air supply channel 142 have a connecting port; The air inlet of channel 142 is connected through the first air replenishment connection channel 151; the first air replenishment channel 141 has a segmented structure and includes a first channel segment and a second channel segment. The first channel segment is close to the air replenishment component inlet 121, and the second channel segment is close to the air replenishment component outlet 111. The flow area of ​​the first channel segment is larger than that of the second channel segment. This design can improve the air replenishment efficiency of the air replenishment component 1; the distance from the connection port of the first air replenishment channel 141 to the air replenishment component outlet 111 is smaller than the distance from the connection port of the second air replenishment channel 142 to the air replenishment component outlet 111.

[0080] This embodiment also proposes that the air supply component 1 includes a first air supply component and a second air supply component that are disposed opposite to each other and sealed together. Both the first air supply component and the second air supply component are annular. The axial wall surface 11 of the first air supply component facing the second air supply component and / or the axial wall surface 11 of the second air supply component facing the first air supply component are formed with N air supply grooves and N-1 transition grooves. The outer peripheral wall surface 12 of the first air supply component or the second air supply component is formed with an air supply component inlet 121. The first air supply component or the second air supply component is formed with N air supply component outlets 111.

[0081] When the first and second air-injection components are separated, assembly is achieved through the following steps:

[0082] First, a one-way valve 2 is installed in each transition groove;

[0083] Second, by setting the first and second air supply components opposite to each other and sealing them together, N air supply channels and N-1 air supply connection channels can be formed between the first and second air supply components. The air inlet of one of the N air supply channels is connected to the air supply component inlet 121, and the air outlet of the N air supply channels is correspondingly set and connected to the N air supply component outlets 111. This improves the reliability and practicality of the air supply component 1, facilitates the disassembly and assembly of the one-way valve 2, and allows the one-way valve 2 to be replaced according to actual needs, so that the opening pressure of the one-way valve 2 is adapted to the actual requirements.

[0084] The principle of check valve 2 is as follows: Figure 3 As shown, the force formula is: F2 - mg - F1 = ma, F2 = p / S, F1 = k * Δx, where F2 is the air replenishment force (i.e., the impact force of the airflow on the valve plate 21 when the airflow is introduced), p is the pressure of the flash evaporator 33, S is the flow area of ​​the one-way valve 2, k is the elastic coefficient of the elastic element of the one-way valve 2, Δx is the displacement of the elastic element, F1 is the elastic force of the elastic element, mg is the weight of the elastic element, and a is the acceleration of the elastic element. When a > 0, the one-way valve 2 is open; when a < 0, the one-way valve 2 is closed. The one-way valve 2 controls the opening or closing of the air replenishment connection channel, thereby realizing a scheme of multiple air replenishment channels. The elastic element can be the valve plate 21 of the one-way valve 2, or the elastic element can be a combination of the valve plate 21 and the spring.

[0085] Rotary compressor

[0086] like Figure 4 As shown, this embodiment also provides a rotary compressor, including a compression chamber, a gas supply connector 32, and a gas supply assembly as described above; a rotatable roller is provided in the compression chamber, and the gas supply component 1 is an upper flange 431, a lower flange 435, or a partition 433; each gas supply component outlet 111 is connected to the compression chamber, the gas supply component inlet 121 is connected to one end of the gas supply connector 32, and the other end of the gas supply connector 32 is used to connect to the flash evaporator 33; the gas supply connector 32 can be a gas supply pipe or a gas supply tank;

[0087] When the gas pressure in the compression chamber is lower than the gas supply pressure in the gas supply channel, the corresponding one-way valve 2 can be opened;

[0088] The number of times check valve 2 opens varies depending on the position of the roller.

[0089] Furthermore, position line b N The smaller the angle between the gas pressure and the dividing line c, the greater the gas pressure in the compression chamber, and the smaller the pressure difference between the gas pressure in the compression chamber and the exhaust pressure of the compression chamber, that is, the closer the gas pressure in the compression chamber is to the exhaust pressure of the compression chamber.

[0090] The gas supply channels of the gas supply component 1 have been optimized and expanded, thus broadening its application range. This allows the operating conditions of the compressor to be matched with the number of gas supply channels available for gas supply, achieving efficient gas supply and enthalpy enhancement. This increases the gas supply volume, enabling the compressor to adapt to different operating environments, reducing the production cost of the rotary compressor, and improving its competitiveness.

[0091] The rotary compressor in this embodiment is a dual-cylinder compressor. The rotary compressor includes an upper cover 411, a housing 413, a lower cover 412, a drive motor 42, and a pump assembly. The upper cover 411 is located at the upper axial end of the housing 413, and the lower cover 412 is located at the lower axial end of the housing 413. The upper cover 411, housing 413, and lower cover 412 form a sealed cavity. A base 48 is provided at the lower end of the housing, and the rotary compressor is fixedly mounted through the base 48. An exhaust pipe 47 is provided on the upper cover 411, and the exhaust pipe 47 communicates with the cavity. The drive motor 42 and the pump assembly are both located in the cavity, with the drive motor 42 located at the upper end of the cavity and the pump assembly located at the lower end of the cavity. The drive motor 42 includes a stator and a rotor.

[0092] The pump body assembly includes an upper flange 431, an upper cylinder 432, a partition plate 433, a lower cylinder 434, a lower flange 435, and a crankshaft arranged sequentially. The upper flange 431 has an upper flange hole, and the lower flange 435 has a lower flange hole. The upper cylinder 432 has an upper compression chamber, in which an upper roller 451 is disposed, and the upper roller 451 has an upper roller hole. The partition plate 433 has a partition hole. The lower cylinder 434 has a lower compression chamber, in which a lower roller 452 is disposed, and the lower roller 452 has a lower roller hole. The crankshaft includes a long shaft 441 arranged sequentially and connected to an upper... The compressor includes an eccentric shaft 442, a transition shaft 443, a lower eccentric shaft 444, and a short shaft 445. The crankshaft is driven to rotate the rotor, and the rotor rotation drives the crankshaft to rotate. A gas-liquid separator 31 is provided on one side of the compressor, forming a first gas-liquid separator outlet 311 and a second gas-liquid separator outlet 312. The upper cylinder 432 has an upper suction port, which is connected to the first gas-liquid separator outlet 311 via a first suction pipe 461. The lower cylinder 434 has a lower suction port, which is connected to the second gas-liquid separator outlet 312 via a second suction pipe 462.

[0093] The long shaft 441 is rotatably mounted in the upper flange hole; the upper eccentric shaft 442 is rotatably mounted in the upper compression chamber and passes through the upper roller hole; the transition shaft 443 is rotatably mounted in the partition hole; the lower eccentric shaft 444 is rotatably mounted in the lower compression chamber and passes through the lower roller hole; and the short shaft 445 is rotatably mounted in the lower flange hole. The crankshaft rotates and drives the upper roller 451 to move in the upper compression chamber, enabling the upper cylinder 432 to achieve air intake and exhaust; the crankshaft rotates and drives the lower roller 452 to move in the lower compression chamber, enabling the lower cylinder 434 to achieve air intake and exhaust.

[0094] The partition 433 is the aforementioned air replenishment component 1, and the air replenishment component inlet 121 is connected to the air replenishment connector 32.

[0095] Air Conditioning

[0096] like Figure 8 As shown, this embodiment also provides an air conditioner, including a refrigeration system, the refrigeration system including a flash evaporator 33, a gas supply connector 32 and a rotary compressor as described in any of the above; the gas supply inlet 121 and the flash evaporator 33 are connected through the gas supply connector 32.

[0097] Furthermore, the refrigeration system also includes an outdoor heat exchanger 34, a four-way reversing valve 35, a gas-liquid separator 31, an indoor heat exchanger 36, a first throttling device 371, and a second throttling device 372.

[0098] The outdoor heat exchanger 34 has an outdoor heat exchanger outlet and an outdoor heat exchanger inlet; the four-way reversing valve 35 has a first valve port 351, a second valve port 352, a third valve port 353 and a fourth valve port 354; the gas-liquid separator 31 has a gas-liquid separator inlet 311 and a gas-liquid separator outlet; the indoor heat exchanger 36 has an indoor heat exchanger outlet and an indoor heat exchanger inlet; the compressor has an air intake port, an air exhaust port and a make-up air inlet 121; and the flash evaporator 33 has a flash evaporator inlet, a first flash evaporator outlet and a second flash evaporator outlet.

[0099] The outdoor heat exchanger outlet and the first valve port 351 are connected through the first refrigerant pipe 51; the second valve port 352 and the gas-liquid separator inlet 311 are connected through the second refrigerant pipe 52; the gas-liquid separator outlet and the suction port are connected through the inlet pipe; the exhaust port and the third valve port 353 are connected through the exhaust pipe 47; the fourth valve port 354 and the indoor heat exchanger inlet are connected through the third refrigerant pipe 53; the indoor heat exchanger outlet and the flash evaporator inlet are connected through the fourth refrigerant pipe 54; the first flash evaporator outlet and the gas makeup component inlet 121 are connected through the gas makeup connector 32; and the second flash evaporator outlet and the outdoor heat exchanger inlet are connected through the fifth refrigerant pipe 55.

[0100] A first throttling device 371 is connected in series between the outlet of the second flash evaporator and the inlet of the outdoor heat exchanger, and a second throttling device 372 is connected in series between the outlet of the indoor heat exchanger and the inlet of the flash evaporator.

[0101] When the air conditioner is in cooling mode, the gas in the flash evaporator 33 enters the first gas supply channel 141 through the gas supply connector 32 and the gas supply inlet 121. When the gas pressure in the compression chamber is less than the gas supply pressure, the one-way valve 2 in the first gas supply connector 151 opens. A portion of the gas in the first gas supply channel 141 is discharged through the gas supply outlet 111 connected to the first gas supply channel 141 and enters the compression chamber. Another portion of the gas in the first gas supply channel 141 enters the second gas supply channel 142 through the first gas supply connector 151. The gas in the second gas supply channel 142 is discharged through the gas supply outlet 111 connected to the second gas supply channel 142 and enters the compression chamber. The first gas supply channel 141 and the second gas supply channel 142 simultaneously supply gas to the compression chamber, increasing the gas supply flow and improving the compressor's cooling capacity.

[0102] Specifically, the air conditioner's cooling modes include a normal cooling mode and a high-temperature cooling mode. When the air conditioner is running in normal cooling mode, as the rollers rotate, the first gas supply channel 141 does not exhaust gas into the compression chamber. The gas pressure in the compression chamber is greater than the gas supply pressure in the first gas supply connection channel 151, so there will be no high-pressure backflow in the first gas supply channel 141. At this time, the one-way valve 2 in the first gas supply connection channel 151 is closed, and the second gas supply channel 142 cannot supply gas into the compression chamber, so there will be no high-pressure backflow in the second gas supply channel 142, thus improving the efficiency of the compressor.

[0103] When the air conditioner is running in high-temperature cooling mode, as the rollers rotate, the first gas supply channel 141 does not exhaust gas into the compression chamber, and the gas pressure in the compression chamber is less than the gas supply pressure in the first gas supply connection channel 151. At this time, the one-way valve 2 opens, and the second gas supply channel 142 exhausts gas into the compression chamber. This expands the gas supply range of single-stage enthalpy-increasing compression and improves the cooling capacity and efficiency of the compressor.

[0104] The injection pressure of a rotary compressor varies under different environments. This invention enables the opening of different positions or numbers of unidirectional channels as the injection pressure changes under different environments, allowing the corresponding injection channels to inject air into the compression chamber. This achieves multiple injection channels, expands the injection range, and improves the compressor's operating capacity and efficiency.

[0105] Example 2

[0106] like Figure 5 and Figure 6As shown, unlike Embodiment 1, in this embodiment, N=3; the three air supply channels include a first air supply channel 141, a second air supply channel 142, and a third air supply channel 143, and the first air supply channel 141, the second air supply channel 142, and the third air supply channel 143 are arranged alternately in a clockwise direction; the two air supply connection channels include a first air supply connection channel 151 and a second air supply connection channel 152, and the first air supply connection channel 151 and the second air supply connection channel 152 are arranged alternately in a clockwise direction.

[0107] The first air supply channel 141, the second air supply channel 142, and the third air supply channel 143 all have connecting ports. The connecting port of the first air supply channel 141 is located between the air inlet and the air outlet of the first air supply channel 141. The connecting port of the second air supply channel 142 is located between the air inlet and the air outlet of the second air supply channel 142. The connecting port of the third air supply channel 143 is located between the air inlet and the air outlet of the third air supply channel 143.

[0108] The connection port of the first air supply channel 141 and the air inlet of the second air supply channel 142 are connected through the first air supply connection channel 151, and the connection port of the second air supply channel 142 and the air inlet of the third air supply channel 143 are connected through the second air supply connection channel 152.

[0109] Example 3

[0110] like Figure 7 As shown, unlike Embodiment 1, the N air supply channels include a first air supply channel 141, a second air supply channel 142, ..., an Nth air supply channel, and the N air supply channels are arranged sequentially in the manner of the first air supply channel 141, the second air supply channel 142, ..., an Nth air supply channel; the N-1 air supply connection channels include a first air supply connection channel 151, a second air supply connection channel 152, ..., an N-1th air supply connection channel, and the N-1 air supply connection channels are arranged sequentially in the manner of the first air supply connection channel 151, the second air supply connection channel 152, ..., an N-1th air supply connection channel.

[0111] Each air supply channel has an air inlet and an air outlet that are positioned opposite to each other.

[0112] The air inlet of the first air replenishment channel 141 is connected to the air replenishment component inlet 121, and the air outlets of the N air replenishment channels are connected to the N air replenishment component outlets 111 in a one-to-one correspondence; the air inlet of the first air replenishment channel 141 and the air inlet of the second air replenishment channel 142 are connected through the first air replenishment connection channel 151, the air inlet of the second air replenishment channel 142 and the air inlet of the third air replenishment channel 143 are connected through the second air replenishment connection channel 152, ..., the air inlet of the (N-1)th air replenishment channel and the air inlet of the Nth air replenishment channel are connected through the (N-1)th air replenishment connection channel.

[0113] Preferably, the air supply channel has a straight structure, and the first air supply channel 141, the second air supply channel 142, ..., the (N-1)th air supply channel all extend radially along the air supply component 1; the first air supply connection channel 151, the second air supply connection channel 152, ..., the (N-1)th air supply connection channel all extend circumferentially along the air supply component 1.

[0114] Exemplary embodiments of this disclosure have been specifically shown and described above. It should be understood that this disclosure is not limited to the detailed structures, arrangements, or implementations described herein; rather, this disclosure is intended to cover various modifications and equivalent arrangements contained within the spirit and scope of the appended claims.

Claims

1. A gas replenishment assembly for replenishing enthalpy in a rotary compressor; characterized in that, The air replenishment component includes: An air supply component (1) has N air supply outlets (111) and one air supply inlet (121) formed on its wall surface. The interior of the air supply component (1) has N air supply channels arranged sequentially. The N air supply channels and the N air supply outlets (111) are connected in a one-to-one correspondence. Only one of the N air supply channels is connected to the air supply inlet (121). One of the N air supply channels is connected to one of the other N-1 air supply channels through an air supply connection channel. One-way valves (2) are provided, and the N-1 one-way valves (2) are arranged one-to-one in the N-1 gas supply connection channels; when the gas pressure in the upstream gas supply channel is greater than the gas pressure in the downstream gas supply channel, the one-way valve (2) in the gas supply connection channel is opened; when the gas pressure in the upstream gas supply channel is less than or equal to the gas pressure in the downstream gas supply channel, the one-way valve (2) in the gas supply connection channel is closed. N-1 of the one-way valves (2) can be controlled to open one or X of them according to the gas pressure in the compression chamber of the rotor compressor and the gas supply pressure in the gas supply channel; Where N and X are both positive integers, and 2≤X≤N.

2. The air replenishment component according to claim 1, characterized in that, The lower the gas pressure in the compression chamber of the rotor compressor, the more check valves (2) among the N-1 check valves (2) are open.

3. The air replenishment component according to claim 1, characterized in that, The air supply component (1) has a plate-shaped structure and is circular; the wall surface of the air supply component (1) includes an axial wall surface (11), an outer peripheral wall surface (12) and an inner peripheral wall surface (13). The axial wall surface (11) forms N air supply component outlets (111), and each air supply component outlet (111) is located close to the inner peripheral wall surface (13); the outer peripheral wall surface (12) forms the air supply component inlet (121). The air supply channel extends from the outer peripheral wall (12) toward the inner peripheral wall (13).

4. The air replenishment component according to claim 3, characterized in that, The N gas replenishment channels include a first gas replenishment channel (141), a second gas replenishment channel (142), ..., an Nth gas replenishment channel, and the N gas replenishment channels are arranged sequentially in the manner of the first gas replenishment channel (141), the second gas replenishment channel (142), ..., an Nth gas replenishment channel; the N-1 gas replenishment connection channels include a first gas replenishment connection channel (151), a second gas replenishment connection channel (152), ..., an N-1th gas replenishment connection channel, and the N-1 gas replenishment connection channels are arranged sequentially in the manner of the first gas replenishment connection channel (151), the second gas replenishment connection channel (152), ..., an N-1th gas replenishment connection channel. Each of the air replenishment channels has an air inlet and an air outlet that are arranged opposite to each other. The first air replenishment channel (141), the second air replenishment channel (142), ..., the N-1th air replenishment channel all have a connecting port, which is located between the corresponding air inlet and air outlet. The air inlet of the first air replenishment channel (141) is connected to the air replenishment component inlet (121), and the air outlets of the N air replenishment channels and the N air replenishment component outlets (111) are connected one-to-one; the connection port of the first air replenishment channel (141) and the air inlet of the second air replenishment channel (142) are connected through the first air replenishment connection channel (151), the connection port of the second air replenishment channel (142) and the air inlet of the third air replenishment channel (143) are connected through the second air replenishment connection channel (152), ..., the connection port of the (N-1)th air replenishment channel and the air inlet of the Nth air replenishment channel are connected through the (N-1)th air replenishment connection channel.

5. The air replenishment component according to claim 3, characterized in that, The N gas replenishment channels include a first gas replenishment channel (141), a second gas replenishment channel (142), ..., an Nth gas replenishment channel, and the N gas replenishment channels are arranged sequentially in the manner of the first gas replenishment channel (141), the second gas replenishment channel (142), ..., an Nth gas replenishment channel; the N-1 gas replenishment connection channels include a first gas replenishment connection channel (151), a second gas replenishment connection channel (152), ..., an N-1th gas replenishment connection channel, and the N-1 gas replenishment connection channels are arranged sequentially in the manner of the first gas replenishment connection channel (151), the second gas replenishment connection channel (152), ..., an N-1th gas replenishment connection channel. Each of the aforementioned air supply channels has an air inlet and an air outlet that are arranged opposite to each other; The air inlet of the first air replenishment channel (141) is connected to the air replenishment component inlet (121), and the air outlets of the N air replenishment channels and the N air replenishment component outlets (111) are connected one-to-one; the air inlet of the first air replenishment channel (141) and the air inlet of the second air replenishment channel (142) are connected through the first air replenishment connection channel (151), the air inlet of the second air replenishment channel (142) and the air inlet of the third air replenishment channel (143) are connected through the second air replenishment connection channel (152), ..., the air inlet of the (N-1)th air replenishment channel and the air inlet of the Nth air replenishment channel are connected through the (N-1)th air replenishment connection channel.

6. The air replenishment component according to any one of claims 4 to 5, characterized in that, The center point of the air supply component (1) is point O. A dividing line c is drawn through point O. The dividing line c is used to divide the high-pressure chamber and the low-pressure chamber. The center point of the air supply outlet (111) connected to the first air supply channel (141) is point A1, the center point of the air supply outlet (111) connected to the second air supply channel (142) is point A2, ... the center point of the air supply outlet (111) connected to the Nth air supply channel is point A. N Draw position line b1 through points O and A1, draw position line b2 through points O and A2, ... through points O and A1... N Draw position line b N The angle between position line b1 and dividing line c is α1, the angle between position line b2 and dividing line c is α2, ... the angle between position line b1 and dividing line c is α2, ... N The angle between the dividing line c and the dividing line is α. N ; The above α1、α2、......、α N Satisfied: α1>α2>......α N 。 7. The air replenishment component according to claim 6, characterized in that, The distance between point A1 and the dividing line c is s1, the distance between point A2 and the dividing line c is s2, ..., the distance between point A... N The distance between the dividing line c and the dividing line c is s. N ; The s1, s2, ..., s N Satisfying: s1≥s2≥......s N .

8. A rotary compressor, characterized in that, It includes a compression chamber, a gas replenishment connector (32), and a gas replenishment assembly as described in any one of claims 1 to 5; the compression chamber is provided with a rotatable roller, each gas replenishment outlet (111) is connected to the compression chamber, the gas replenishment inlet (121) is connected to one end of the gas replenishment connector (32), and the other end of the gas replenishment connector (32) is used to connect to the flash evaporator (33); When the gas pressure in the compression chamber is less than the gas replenishment pressure in the replenishment channel, the corresponding check valve (2) can be opened; when the roller rotates to different positions, the number of check valves (2) that open is different; When the rotary compressor is a single-cylinder rotary compressor, the air supply component (1) is an upper flange (431) or a lower flange (435); When the rotary compressor is a twin-cylinder rotary compressor, the air supply component (1) is an upper flange (431), a lower flange (435), or a partition (433).

9. A rotary compressor, characterized in that, It includes a compression chamber, a gas replenishment connector (32), and a gas replenishment assembly as described in any one of claims 6 to 7; the compression chamber is provided with a rotatable roller, each gas replenishment outlet (111) is connected to the compression chamber, the gas replenishment inlet (121) is connected to one end of the gas replenishment connector (32), and the other end of the gas replenishment connector (32) is used to connect to the flash evaporator (33); When the gas pressure in the compression chamber is less than the gas replenishment pressure in the replenishment channel, the corresponding check valve (2) can be opened; when the roller rotates to different positions, the number of check valves (2) that open is different; When the rotary compressor is a single-cylinder rotary compressor, the air supply component (1) is an upper flange (431) or a lower flange (435); When the rotary compressor is a twin-cylinder rotary compressor, the air supply component (1) is an upper flange (431), a lower flange (435), or a partition (433).

10. The rotary compressor according to claim 9, characterized in that, The position line b N The smaller the angle between the dividing line c and the gas pressure in the compression chamber, the greater the gas pressure in the compression chamber and the smaller the pressure difference between the gas pressure in the compression chamber and the exhaust pressure of the compression chamber.

11. An air conditioner, characterized in that, The system includes a refrigeration system comprising a flash evaporator (33), a gas supply connector (32), and a rotary compressor as described in any one of claims 8 to 10; the gas supply inlet (121) and the flash evaporator (33) are connected via the gas supply connector (32).

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