Compressor, compression system and air conditioner

Abstract

The utility model relates to a compressor, compression system and air conditioner, compressor includes compressor pump body, compressor pump body includes at least one cylinder unit, the cylinder unit includes at least one cylinder, the cylinder has two inner cavity, the two inner cavity is the first chamber and the second chamber respectively, and the volume of the first chamber is larger than that of the second chamber. In the compressor, the volume of the first cavity and the volume of the second cavity are limited, namely the volume of the first cavity is larger than that of the second cavity, and the proportion of the air suction amount and the air supply amount of the compressor is limited, so that the optimal value of the air supply amount of single-stage enthalpy increase is achieved. The problem that the heat exchange effect of the evaporator is reduced due to the fact that the middle air supplementing amount is too large is effectively solved, and meanwhile the refrigerating capacity and energy efficiency of the compressor and the compression system are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to a compressor, a compression system and an air conditioner. Background Art

[0002] As market competition becomes increasingly fierce, the two devices in air-conditioning systems are becoming smaller and smaller, and system matching is becoming more and more refined. Among them, single-stage compressors occupy an important position in the air-conditioning field because they increase the cooling capacity through an air-supply structure so that they can still maintain high efficiency under high-temperature conditions. While the capacity of single-stage compressors in existing technologies is improved, the power consumption is also relatively increased. Utility Model Content

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a compressor, a compression system and an air conditioner with relatively high refrigeration capacity and energy efficiency.

[0004] The utility model aims to design a compressor, comprising a compressor pump body, wherein the compressor pump body comprises at least one cylinder unit, each of the cylinder units comprises at least one cylinder,

[0005] The inner cavity of the cylinder is provided with a first sliding vane groove, a second sliding vane groove and an eccentric roller, the first sliding vane groove and the second sliding vane groove are respectively provided with a first sliding vane and a second sliding vane, one end of the first sliding vane and one end of the second sliding vane respectively abut against the eccentric roller, and the first sliding vane groove and the second sliding vane groove divide the inner cavity of the cylinder into a first chamber and a second chamber;

[0006] The first chamber has a first air intake hole and a first air exhaust hole, the second chamber has a second air intake hole and a second air exhaust hole, and the first air intake hole, the first air exhaust hole, the second air intake hole and the second air exhaust hole are arranged in sequence along the rotation direction of the eccentric roller;

[0007] The volume of the first chamber is greater than the volume of the second chamber.

[0008] In some embodiments, the volume of the first chamber is V1, the volume of the second chamber is V2, and V1 and V2 satisfy: V1>2*V2.

[0009] In some embodiments, the first air intake hole, the first air exhaust hole, the second air intake hole, and the second air exhaust hole are sequentially arranged in the inner cavity of the cylinder along the rotation direction of the eccentric roller.

[0010] In some embodiments, a one-way valve is provided on the second slide, and the one-way valve is used to connect the first chamber and the second chamber. The one-way valve is configured so that the gas in the first chamber can enter the second chamber, but the gas in the second chamber cannot enter the first chamber.

[0011] In some embodiments, the one-way valve is disposed at an end of the second sliding plate close to the eccentric roller.

[0012] In some embodiments, a diameter of the first suction hole is larger than a diameter of the second suction hole.

[0013] In some embodiments, the diameter of the second suction hole is less than or equal to 3 mm.

[0014] In some embodiments, the compressor described above is a rotary compressor.

[0015] In some embodiments, a compression system is provided, comprising the compressor described above.

[0016] In some embodiments, an air conditioner is provided, comprising a refrigeration system, the refrigeration system comprising a flash evaporator, an evaporator, and the compressor described above; the compressor further comprising a housing, the interior of the housing forming a cavity, the compressor pump body being disposed within the cavity; an exhaust pipe being disposed on a top wall of the housing, the exhaust pipe being in communication with the cavity;

[0017] The first air intake hole is communicated with the evaporator, the second air intake hole is communicated with the flash evaporator, and the first exhaust hole and the second exhaust hole are both communicated with the cavity.

[0018] Compared with the prior art, the solution provided by this utility model has the following beneficial effects:

[0019] In this compressor, by limiting the volumes of the first and second chambers—that is, the first chamber's volume is larger than the second—the ratio of the compressor's intake and supply air volumes is limited, achieving the optimal supply air volume for single-stage enthalpy increase. This effectively avoids excessive intermediate supply air volume, which can reduce the evaporator's heat exchange efficiency, while simultaneously improving the cooling capacity and energy efficiency of the compressor and compression system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. In the drawings:

[0021] Figure 1 This is a schematic diagram of a cylinder (without eccentric roller) according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of a cylinder (with an eccentric roller) according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the second sliding plate and the one-way valve thereon shown in an embodiment of the present utility model;

[0024] Figure 4 This is a schematic diagram of an air conditioning and refrigeration system according to an embodiment of the present utility model;

[0025] Figure 5 It is a bar graph corresponding to Table 1 shown in an embodiment of the present utility model.

[0026] In the figure: 1-cylinder, 2-first slide groove, 3-second slide groove, 4-first slide, 5-second slide, 6-first chamber, 7-second chamber, 8-first intake hole, 9-first exhaust hole, 10-second intake hole, 11-second exhaust hole, 12-one-way valve, 13-eccentric roller.

[0027] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0028] In the description of the present invention, it should be noted that the terms "inside" and "outside" etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," "in contact," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; and direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0030] Example 1:

[0031] See also Figure 1 、 2The utility model provides a compressor, including a compressor pump body, the compressor pump body including at least one cylinder unit, the cylinder unit including at least one cylinder 1, the inner cavity of the cylinder 1 is provided with a first sliding vane groove 2, a second sliding vane groove 3 and an eccentric roller 13, the first sliding vane groove 2 and the second sliding vane groove 3 are respectively provided with a first sliding vane 4 and a second sliding vane 5, one end of the first sliding vane 4 and one end of the second sliding vane 5 respectively abut against the eccentric roller 13, the first sliding vane groove 2 and the second sliding vane groove 3 divide the inner cavity of the cylinder 1 into a first chamber 6 and a second chamber 7;

[0032] The first chamber 6 has a first air intake hole 8 and a first air exhaust hole 9, and the second chamber 7 has a second air intake hole 10 and a second air exhaust hole 11. The first air intake hole 8, the first air exhaust hole 9, the second air intake hole 10 and the second air exhaust hole 11 are arranged in sequence along the rotation direction of the eccentric roller 13;

[0033] The volume of the first chamber 6 is greater than the volume of the second chamber 7 .

[0034] In this compressor, the compressor pump body also includes an upper flange, a lower flange and a rotating shaft. The cylinder unit is located between the upper flange and the lower flange. The eccentric roller 13 is sleeved on the rotating shaft. The eccentric roller 13 can rotate with the rotating shaft to circulate and compress the inner cavity gas of the cylinder 1. One end of the first slide 4 and the second slide 5 extends out of the corresponding slide groove and abuts on the eccentric roller 13. As the eccentric roller 13 rotates, the slide moves back and forth in the corresponding slide groove, cooperating with the eccentric roller 13 to circulate and compress the inner cavity gas of the cylinder 1. By limiting the volume of the first chamber 6 and the second chamber 7, that is, the volume of the first chamber 6 is greater than the volume of the second chamber 7, the ratio of the suction volume and the air supply volume of the compressor is limited to achieve the optimal value of the air supply volume for single-stage enthalpy increase.

[0035] Compared with the compressor in the existing technology, it has the problem of too little air supply, and the enthalpy increase capacity is not fully exerted; or the air supply is too large, resulting in violent evaporation of liquid refrigerant and a decrease in the liquid level in the flash evaporator. When the liquid level drops below the highest pipe position of the air outlet, the enthalpy difference on the evaporation side will be reduced, resulting in a decrease in capacity, and even due to excessive intermediate air supply, the liquid level in the flash evaporator will disappear and the flow in the evaporator will be reduced, resulting in insufficient refrigerant in the evaporator and serious overheating, thereby reducing the heat exchange effect.

[0036] In this compressor, by limiting the volumes of the first chamber 6 and the second chamber 7, the ratio of the compressor's intake and supply volumes is limited, which can effectively avoid the problem of excessive intermediate supply volume and reduced evaporator heat exchange effect, while improving the cooling capacity and energy efficiency of the compressor and compression system.

[0037] Table 1

[0038]

[0039] From Table 1 and Figure 5 It can be further verified that in this compressor, by limiting the volumes of the first chamber 6 and the second chamber 7, the problem of excessive intermediate air supply and reduced evaporator heat exchange effect can be effectively avoided, while the cooling capacity and energy efficiency of the compressor and compression system can be improved.

[0040] Example 2:

[0041] In this embodiment, the volumes of the first chamber 6 and the second chamber 7 are further defined as follows:

[0042] The volume of the first chamber 6 is V1, the volume of the second chamber 7 is V2, and V1 and V2 satisfy: V1>2*V2,

[0043] From Table 1 and Figure 5 The refrigeration capacity values ​​corresponding to the compressors with different compression chamber volumes are shown. When V1=3*V2 or V1=4*V2, the refrigeration capacity is significantly higher than that of V1=2*V2. Therefore, the volume V1 of the first chamber 6 is greater than 2 times the volume V2 of the second chamber 7, which further improves the refrigeration capacity of the compressor.

[0044] In this embodiment, the suction and exhaust holes of the first chamber 6 and the second chamber 7 are specifically described as follows:

[0045] See also Figure 1 、 2 The first chamber 6 has a first air intake hole 8 and a first air exhaust hole 9, and the second chamber 7 has a second air intake hole 10 and a second air exhaust hole 11. The first air intake hole 8, the first air exhaust hole 9, the second air intake hole 10 and the second air exhaust hole 11 are arranged in sequence in a clockwise direction in the inner cavity of the cylinder 1.

[0046] Among them, the first suction hole 8 is connected to the air-conditioning evaporator, and the second suction hole 10 is connected to the air-conditioning flash evaporator. The gas inhaled by the first suction hole 8 is low-temperature and low-pressure gas, and the gas inhaled by the second suction hole 10 is medium-pressure gas after one throttling. In this compressor, as the eccentric roller 13 rotates, the low-temperature and low-pressure gas in the first chamber 6 is compressed, and the gas in the first chamber 6 is discharged through the first exhaust hole 9. The eccentric roller 13 rotates through the second suction hole 10 and starts to compress the medium-pressure gas in the second chamber 7. The gas in the second chamber 7 is discharged through the second exhaust hole 11. Through the orderly setting of the suction and exhaust holes, the eccentric roller 13 is effectively coordinated to work so that the gas in the chamber is circulated and compressed.

[0047] Example 3:

[0048] In this example, see Figure 2 、 3A one-way valve 12 is provided on the second slide 5. The one-way valve 12 is used to connect the first chamber 6 and the second chamber 7. The one-way valve 12 is set so that the gas in the second chamber 7 can enter the first chamber 6, and the gas in the first chamber 6 cannot enter the second chamber 7.

[0049] The intermediate pressure gas in the second chamber 7 enters the first chamber 6 through the one-way valve. When the gas pressure in the first chamber 6 is greater than the gas pressure in the second chamber 7, the one-way valve 12 is closed, effectively avoiding the high-pressure reflux problem of the compressor, thereby avoiding the reduction in the working efficiency of the compressor caused by the high-pressure reflux phenomenon.

[0050] See also Figure 2 、 3 The one-way valve 12 is arranged on the side of the second sliding vane 5 close to the eccentric roller 13, which further limits the position of the one-way valve, which is conducive to more medium-pressure gas in the second chamber 7 entering the first chamber 6.

[0051] In this embodiment, the aperture of the air intake hole is specifically described as follows:

[0052] See also Figure 1 , the aperture of the first air suction hole 8 is larger than the aperture of the second air suction hole 10.

[0053] The apertures of the first air intake hole 8 and the second air intake hole 10 are set to match the volume relationship of the first chamber 6 and the second chamber 7. The air intake volume of the first chamber 6 is much greater than the air intake volume of the second chamber 7, thereby improving the overall cooling capacity of the compressor.

[0054] In this embodiment, the aperture of the second air intake hole 10 is specifically described as follows:

[0055] See also Figure 1 , the aperture of the second air intake hole 10 is less than or equal to 3 mm.

[0056] The second air intake hole has a smaller aperture and is used to control the air supply flow rate, thereby reducing the overall power consumption of the compressor.

[0057] The compressors in the first, second and third embodiments are rotary compressors.

[0058] Example 4:

[0059] In this embodiment, a compression system is provided, which includes the above-mentioned compressor.

[0060] In this compression system, by limiting the volumes of the first and second chambers 6 and 7 in the compressor—that is, by ensuring that the volume of the first chamber 6 is greater than that of the second chamber 7—the ratio of the compressor's intake and supply air volumes is limited, achieving the optimal supply air volume for single-stage enthalpy increase. This effectively avoids excessive intermediate supply air volume, which can reduce the evaporator's heat exchange efficiency, while also improving the overall cooling capacity and energy efficiency of the compression system.

[0061] Embodiment 5:

[0062] In this embodiment, an air conditioner is provided, including a refrigeration system, the refrigeration system including a flash evaporator, an evaporator, and a compressor, the compressor being the compressor of Embodiments 1, 2, and 3; the compressor further including a housing, the interior of which is formed with a cavity, the compressor pump body being disposed in the cavity; an exhaust pipe being disposed on a top wall of the housing, the exhaust pipe being in communication with the cavity;

[0063] The first air intake hole 8 is connected to the evaporator, the second air intake hole 10 is connected to the flash evaporator, and the first exhaust hole 9 and the second exhaust hole 11 are both connected to the cavity; in this way, the first chamber 6 is connected to the evaporator through the first air intake hole 8, and the second chamber 7 is connected to the flash evaporator through the second air intake hole 10.

[0064] See also Figure 4 In the refrigeration system of the air conditioner, the first chamber 6 of the compressor is connected to the evaporator through the first air intake hole 8, and the second chamber 7 is connected to the flash evaporator through the second air intake hole 10. The gas inhaled by the first air intake hole 8 is low-temperature and low-pressure gas, and the gas inhaled by the second air intake hole 10 is medium-pressure gas after one throttling. In the compressor, the low-temperature and low-pressure gas in the first chamber 6 is compressed as the eccentric roller rotates, and the gas in the first chamber 6 is discharged from the exhaust cavity through the first exhaust hole 9. The eccentric roller rotates through the second air intake hole 10 and starts to compress the medium-pressure gas in the second chamber 7. The gas in the second chamber 7 is discharged from the exhaust cavity through the second exhaust hole 11. Through the operation of the compressor, the compression system can work continuously and stably.

[0065] The refrigeration system also includes an outdoor heat exchanger (condenser), a four-way reversing valve, a gas-liquid separator, an indoor heat exchanger (evaporator), a first throttling device and a second throttling device;

[0066] The outdoor heat exchanger is formed with an outdoor heat exchanger outlet and an outdoor heat exchanger inlet, the four-way reversing valve is formed with a first valve port, a second valve port, a third valve port and a fourth valve port, the gas-liquid separator is formed with a gas-liquid separator inlet and a gas-liquid separator outlet, the indoor heat exchanger is formed with an indoor heat exchanger outlet and an indoor heat exchanger inlet; the compressor is formed with an air intake port, an air exhaust port and an air supply component inlet, and the flash evaporator is formed with a flash evaporator inlet, a first flash evaporator outlet and a second flash evaporator outlet;

[0067] The outdoor heat exchanger outlet and the first valve port are connected through a first refrigerant pipe, the second valve port and the gas-liquid separator inlet are connected through a second refrigerant pipe, the gas-liquid separator outlet and the air intake port are connected through an air intake pipe, the exhaust port and the third valve port are connected through an exhaust pipe, the fourth valve port and the indoor heat exchanger inlet are connected through a third refrigerant pipe, the outdoor heat exchanger outlet and the flash evaporator inlet are connected through a fourth refrigerant pipe, the first flash evaporator outlet and the air supply component inlet are connected through an air supply connector, and the second flash evaporator outlet and the indoor heat exchanger inlet are connected through a fifth refrigerant pipe;

[0068] A first throttling device 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 is connected in series between the outlet of the indoor heat exchanger and the inlet of the flash evaporator;

[0069] The refrigeration cycle begins: the compressor draws in low-temperature, low-pressure refrigerant vapor from the evaporator and begins the compression process.

[0070] Compression process: The compressor increases the pressure and temperature of the refrigerant vapor and sends it to the condenser.

[0071] Condensation process: In the condenser, high-temperature and high-pressure refrigerant vapor is cooled and condensed into high-pressure liquid refrigerant.

[0072] High-pressure liquid refrigerant enters the flash evaporator through the first throttling device, and intermediate-pressure gas enters the compressor through the outlet of the first flash evaporator for air compression. The intermediate-pressure liquid refrigerant enters the evaporator from the flash evaporator through the second throttling device. The gas-liquid separation in the flash evaporator further reduces the enthalpy difference of the refrigerant entering the evaporator, thereby increasing the cooling capacity.

[0073] Evaporation process: In the evaporator, the liquid under low pressure evaporates rapidly into saturated steam, absorbing indoor heat and achieving cooling.

[0074] The cycle continues: the saturated vapor is sucked into the compressor again, starting a new refrigeration cycle.

[0075] It is further understood that in the present disclosure, "plurality" refers to two or more than two, and other quantifiers are similar. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the related objects before and after are in an "or" relationship. The singular forms "a", "the" and "the" are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0076] It will be further understood that the terms "first," "second," and the like are used to describe various types of information, but such information should not be limited to these terms. These terms are used solely to distinguish information of the same type from one another and do not indicate a particular order or level of importance. In fact, the terms "first," "second," and the like are fully interchangeable. For example, first information could be referred to as second information, and similarly, second information could be referred to as first information without departing from the scope of this disclosure.

[0077] It is further understood that although operations are described in a particular order in the drawings in the embodiments of the present disclosure, this should not be construed as requiring that the operations be performed in the particular order shown or in a serial order, or that all of the operations shown be performed to obtain the desired results. In certain circumstances, multitasking and parallel processing may be advantageous.

[0078] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.

[0079] It should be understood that the present disclosure is not limited to the exact structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the scope of the appended claims.

Claims

1. A compressor for air conditioning, comprising a compressor pump body, wherein the compressor pump body comprises at least one cylinder unit, each of the cylinder units comprises at least one cylinder (1), characterized in that: The inner cavity of the cylinder (1) is provided with a first sliding vane groove (2), a second sliding vane groove (3) and an eccentric roller (13); the first sliding vane groove (2) and the second sliding vane groove (3) are respectively provided with a first sliding vane (4) and a second sliding vane (5); one end of the first sliding vane (4) and one end of the second sliding vane (5) are respectively abutted against the eccentric roller (13); the first sliding vane groove (2) and the second sliding vane groove (3) divide the inner cavity of the cylinder (1) into a first chamber (6) and a second chamber (7); The first chamber (6) has a first air intake hole (8) and a first air exhaust hole (9), the second chamber (7) has a second air intake hole (10) and a second air exhaust hole (11), the first air intake hole (8), the first air exhaust hole (9), the second air intake hole (10) and the second air exhaust hole (11) are arranged in sequence along the rotation direction of the eccentric roller (13), the first air intake hole (8) is connected to the evaporator of the air conditioner, and the second air intake hole (10) is connected to the flash evaporator of the air conditioner; The volume of the first chamber (6) is greater than the volume of the second chamber (7).

2. The compressor according to claim 1, characterized in that The volume of the first chamber (6) is V1, the volume of the second chamber (7) is V2, and V1 and V2 satisfy: V1>2*V2.

3. The compressor according to claim 2, characterized in that The first air intake hole (8), the first air exhaust hole (9), the second air intake hole (10) and the second air exhaust hole (11) are arranged in sequence in the inner cavity of the cylinder (1) along the rotation direction of the eccentric roller (13).

4. The compressor according to claim 1, characterized in that A one-way valve (12) is provided on the second sliding plate (5), and the one-way valve (12) is used to connect the first chamber (6) and the second chamber (7). The one-way valve (12) is configured so that the gas in the second chamber (7) can enter the first chamber (6), but the gas in the first chamber (6) cannot enter the second chamber (7).

5. The compressor according to claim 4, characterized in that The one-way valve (12) is arranged at one end of the second sliding plate (5) close to the eccentric roller (13).

6. The compressor according to claim 1, characterized in that The aperture of the first air suction hole (8) is larger than the aperture of the second air suction hole (10).

7. The compressor according to claim 6, characterized in that The diameter of the second air suction hole (10) is less than or equal to 3 mm.

8. The compressor according to any one of claims 1 to 7, characterized in that: The compressor is a rotary compressor.

9. A compression system, characterized in that: The compression system comprises the compressor according to any one of claims 1-7.

10. An air conditioner, characterized in that: A refrigeration system is provided, wherein the refrigeration system comprises a flash evaporator, an evaporator and the compressor according to any one of claims 1 to 7; the compressor further comprises a shell, a cavity is formed inside the shell, and the compressor pump body is arranged in the cavity; an exhaust pipe is arranged on the top wall of the shell, and the exhaust pipe is connected to the cavity; The first air intake hole (8) is connected to the evaporator, the second air intake hole (10) is connected to the flash evaporator, and the first exhaust hole (9) and the second exhaust hole (11) are both connected to the cavity.

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